v1.15.3

update pkgs to 1.15.2
v1.15.2
2024-09-16 01:07:50 +00:00 · 2024-09-16 00:44:48 +00:00 · 2024-09-16 00:20:20 +00:00 · 2024-09-16 00:12:49 +00:00 · 2024-09-15 23:37:24 +00:00 · 2024-09-15 23:01:18 +00:00
107 changed files with 7386 additions and 1367 deletions
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -22,6 +22,9 @@
        "terminal.ansiBrightCyan": "#9cf0ed",
        "terminal.ansiBrightWhite": "#ffffff",
    },
+    "python.terminal.activateEnvironment": false,
+    "python.analysis.enablePytestSupport": false,
+    "python.analysis.typeCheckingMode": "standard",
    "python.testing.pytestEnabled": false,
    "python.testing.unittestEnabled": true,
    "python.testing.unittestArgs": [
@@ -31,23 +34,8 @@
        "-p",
        "test_*.py"
    ],
-    "python.linting.pylintEnabled": true,
-    "python.linting.flake8Enabled": true,
-    "python.linting.banditEnabled": true,
-    "python.linting.mypyEnabled": true,
-    "python.linting.flake8Args": [
-        "--max-line-length=120",
-        "--ignore=E722,F405,E203,W503,W293,E402,E501,E128,E226",
-    ],
-    "python.linting.banditArgs": [
-        "--ignore=B104,B110,B112"
-    ],
-    // python3 -m isort --py=27 --profile=black copyparty/
-    "python.formatting.provider": "none",
-    "[python]": {
-        "editor.defaultFormatter": "ms-python.black-formatter"
-    },
-    "editor.formatOnSave": true,
+    // python3 -m isort --py=27 --profile=black ~/dev/copyparty/{copyparty,tests}/*.py && python3 -m black -t py27 ~/dev/copyparty/{copyparty,tests,bin}/*.py $(find ~/dev/copyparty/copyparty/stolen -iname '*.py')
+    "editor.formatOnSave": false,
    "[html]": {
        "editor.formatOnSave": false,
        "editor.autoIndent": "keep",
@@ -58,6 +46,4 @@
    "files.associations": {
        "*.makefile": "makefile"
    },
-    "python.linting.enabled": true,
-    "python.pythonPath": "/usr/bin/python3"
 }
--- a/README.md
+++ b/README.md
@@ -1,4 +1,6 @@
-# 💾🎉 copyparty
+<img src="https://github.com/9001/copyparty/raw/hovudstraum/docs/logo.svg" width="250" align="right"/>
+
+### 💾🎉 copyparty

 turn almost any device into a file server with resumable uploads/downloads using [*any*](#browser-support) web browser

@@ -41,7 +43,9 @@ turn almost any device into a file server with resumable uploads/downloads using
        * [unpost](#unpost) - undo/delete accidental uploads
        * [self-destruct](#self-destruct) - uploads can be given a lifetime
        * [race the beam](#race-the-beam) - download files while they're still uploading ([demo video](http://a.ocv.me/pub/g/nerd-stuff/cpp/2024-0418-race-the-beam.webm))
+        * [incoming files](#incoming-files) - the control-panel shows the ETA for all incoming files
    * [file manager](#file-manager) - cut/paste, rename, and delete files/folders (if you have permission)
+    * [shares](#shares) - share a file or folder by creating a temporary link
    * [batch rename](#batch-rename) - select some files and press `F2` to bring up the rename UI
    * [media player](#media-player) - plays almost every audio format there is
        * [audio equalizer](#audio-equalizer) - and [dynamic range compressor](https://en.wikipedia.org/wiki/Dynamic_range_compression)
@@ -62,7 +66,8 @@ turn almost any device into a file server with resumable uploads/downloads using
    * [smb server](#smb-server) - unsafe, slow, not recommended for wan
    * [browser ux](#browser-ux) - tweaking the ui
    * [opengraph](#opengraph) - discord and social-media embeds
-    * [file indexing](#file-indexing) - enables dedup and music search ++
+    * [file deduplication](#file-deduplication) - enable symlink-based upload deduplication
+    * [file indexing](#file-indexing) - enable music search, upload-undo, and better dedup
        * [exclude-patterns](#exclude-patterns) - to save some time
        * [filesystem guards](#filesystem-guards) - avoid traversing into other filesystems
        * [periodic rescan](#periodic-rescan) - filesystem monitoring
@@ -76,6 +81,7 @@ turn almost any device into a file server with resumable uploads/downloads using
        * [upload events](#upload-events) - the older, more powerful approach ([examples](./bin/mtag/))
    * [handlers](#handlers) - redefine behavior with plugins ([examples](./bin/handlers/))
    * [identity providers](#identity-providers) - replace copyparty passwords with oauth and such
+    * [user-changeable passwords](#user-changeable-passwords) - if permitted, users can change their own passwords
    * [using the cloud as storage](#using-the-cloud-as-storage) - connecting to an aws s3 bucket and similar
    * [hiding from google](#hiding-from-google) - tell search engines you dont wanna be indexed
    * [themes](#themes)
@@ -85,6 +91,7 @@ turn almost any device into a file server with resumable uploads/downloads using
    * [prometheus](#prometheus) - metrics/stats can be enabled
    * [other extremely specific features](#other-extremely-specific-features) - you'll never find a use for these
        * [custom mimetypes](#custom-mimetypes) - change the association of a file extension
+        * [feature chickenbits](#feature-chickenbits) - buggy feature? rip it out
 * [packages](#packages) - the party might be closer than you think
    * [arch package](#arch-package) - now [available on aur](https://aur.archlinux.org/packages/copyparty) maintained by [@icxes](https://github.com/icxes)
    * [fedora package](#fedora-package) - does not exist yet
@@ -111,6 +118,7 @@ turn almost any device into a file server with resumable uploads/downloads using
 * [HTTP API](#HTTP-API) - see [devnotes](./docs/devnotes.md#http-api)
 * [dependencies](#dependencies) - mandatory deps
    * [optional dependencies](#optional-dependencies) - install these to enable bonus features
+        * [dependency chickenbits](#dependency-chickenbits) - prevent loading an optional dependency
    * [optional gpl stuff](#optional-gpl-stuff)
 * [sfx](#sfx) - the self-contained "binary" (recommended!)
    * [copyparty.exe](#copypartyexe) - download [copyparty.exe](https://github.com/9001/copyparty/releases/latest/download/copyparty.exe) (win8+) or [copyparty32.exe](https://github.com/9001/copyparty/releases/latest/download/copyparty32.exe) (win7+)
@@ -124,7 +132,7 @@ turn almost any device into a file server with resumable uploads/downloads using

 just run **[copyparty-sfx.py](https://github.com/9001/copyparty/releases/latest/download/copyparty-sfx.py)** -- that's it! 🎉

-* or install through pypi: `python3 -m pip install --user -U copyparty`
+* or install through [pypi](https://pypi.org/project/copyparty/): `python3 -m pip install --user -U copyparty`
 * or if you cannot install python, you can use [copyparty.exe](#copypartyexe) instead
 * or install [on arch](#arch-package) ╱ [on NixOS](#nixos-module) ╱ [through nix](#nix-package)
 * or if you are on android, [install copyparty in termux](#install-on-android)
@@ -194,7 +202,7 @@ firewall-cmd --reload
 also see [comparison to similar software](./docs/versus.md)

 * backend stuff
-  * ☑ IPv6
+  * ☑ IPv6 + unix-sockets
  * ☑ [multiprocessing](#performance) (actual multithreading)
  * ☑ volumes (mountpoints)
  * ☑ [accounts](#accounts-and-volumes)
@@ -209,7 +217,7 @@ also see [comparison to similar software](./docs/versus.md)
 * upload
  * ☑ basic: plain multipart, ie6 support
  * ☑ [up2k](#uploading): js, resumable, multithreaded
-    * unaffected by cloudflare's max-upload-size (100 MiB)
+    * **no filesize limit!** ...unless you use Cloudflare, then it's 383.9 GiB
  * ☑ stash: simple PUT filedropper
  * ☑ filename randomizer
  * ☑ write-only folders
@@ -225,6 +233,7 @@ also see [comparison to similar software](./docs/versus.md)
  * ☑ [navpane](#navpane) (directory tree sidebar)
  * ☑ file manager (cut/paste, delete, [batch-rename](#batch-rename))
  * ☑ audio player (with [OS media controls](https://user-images.githubusercontent.com/241032/215347492-b4250797-6c90-4e09-9a4c-721edf2fb15c.png) and opus/mp3 transcoding)
+    * ☑ play video files as audio (converted on server)
  * ☑ image gallery with webm player
  * ☑ textfile browser with syntax hilighting
  * ☑ [thumbnails](#thumbnails)
@@ -232,7 +241,7 @@ also see [comparison to similar software](./docs/versus.md)
    * ☑ ...of videos using FFmpeg
    * ☑ ...of audio (spectrograms) using FFmpeg
    * ☑ cache eviction (max-age; maybe max-size eventually)
-  * ☑ multilingual UI (english, norwegian, [add your own](./docs/rice/#translations)))
+  * ☑ multilingual UI (english, norwegian, chinese, [add your own](./docs/rice/#translations)))
  * ☑ SPA (browse while uploading)
 * server indexing
  * ☑ [locate files by contents](#file-search)
@@ -578,9 +587,6 @@ images with the following names (see `--th-covers`) become the thumbnail of the
 * the order is significant, so if both `cover.png` and `folder.jpg` exist in a folder, it will pick the first matching `--th-covers` entry (`folder.jpg`)
 * and, if you enable [file indexing](#file-indexing), it will also try those names as dotfiles (`.folder.jpg` and so), and then fallback on the first picture in the folder (if it has any pictures at all)

-in the grid/thumbnail view, if the audio player panel is open, songs will start playing when clicked
-* indicated by the audio files having the ▶ icon instead of 💾
-
 enabling `multiselect` lets you click files to select them, and then shift-click another file for range-select
 * `multiselect` is mostly intended for phones/tablets, but the `sel` option in the `[⚙️] settings` tab is better suited for desktop use, allowing selection by CTRL-clicking and range-selection with SHIFT-click, all without affecting regular clicking
  * the `sel` option can be made default globally with `--gsel` or per-volume with volflag `gsel`
@@ -646,6 +652,7 @@ up2k has several advantages:
  * uploads resume if you reboot your browser or pc, just upload the same files again
  * server detects any corruption; the client reuploads affected chunks
  * the client doesn't upload anything that already exists on the server
+  * no filesize limit unless imposed by a proxy, for example Cloudflare, which blocks uploads over 383.9 GiB
 * much higher speeds than ftp/scp/tarpipe on some internet connections (mainly american ones) thanks to parallel connections
 * the last-modified timestamp of the file is preserved

@@ -725,6 +732,13 @@ download files while they're still uploading ([demo video](http://a.ocv.me/pub/g
 requires the file to be uploaded using up2k (which is the default drag-and-drop uploader), alternatively the command-line program


+### incoming files
+
+the control-panel shows the ETA for all incoming files  , but only for files being uploaded into volumes where you have read-access
+
+![copyparty-cpanel-upload-eta-or8](https://github.com/user-attachments/assets/fd275ffa-698c-4fca-a307-4d2181269a6a)
+
+
 ## file manager

 cut/paste, rename, and delete files/folders (if you have permission)
@@ -743,6 +757,42 @@ file selection: click somewhere on the line (not the link itsef), then:
 you can move files across browser tabs (cut in one tab, paste in another)


+## shares
+
+share a file or folder by creating a temporary link
+
+when enabled in the server settings (`--shr`), click the bottom-right `share` button to share the folder you're currently in, or alternatively:
+* select a folder first to share that folder instead
+* select one or more files to share only those files
+
+this feature was made with [identity providers](#identity-providers) in mind -- configure your reverseproxy to skip the IdP's access-control for a given URL prefix and use that to safely share specific files/folders sans the usual auth checks
+
+when creating a share, the creator can choose any of the following options:
+
+* password-protection
+* expire after a certain time; `0` or blank means infinite
+* allow visitors to upload (if the user who creates the share has write-access)
+
+semi-intentional limitations:
+
+* cleanup of expired shares only works when global option `e2d` is set, and/or at least one volume on the server has volflag `e2d`
+* only folders from the same volume are shared; if you are sharing a folder which contains other volumes, then the contents of those volumes will not be available
+* no option to "delete after first access" because tricky
+  * when linking something to discord (for example) it'll get accessed by their scraper and that would count as a hit
+  * browsers wouldn't be able to resume a broken download unless the requester's IP gets allowlisted for X minutes (ref. tricky)
+
+specify `--shr /foobar` to enable this feature; a toplevel virtual folder named `foobar` is then created, and that's where all the shares will be served from
+
+* you can name it whatever, `foobar` is just an example
+* if you're using config files, put `shr: /foobar` inside the `[global]` section instead
+
+users can delete their own shares in the controlpanel, and a list of privileged users (`--shr-adm`) are allowed to see and/or delet any share on the server
+
+after a share has expired, it remains visible in the controlpanel for `--shr-rt` minutes (default is 1 day), and the owner can revive it by extending the expiration time there
+
+**security note:** using this feature does not mean that you can skip the [accounts and volumes](#accounts-and-volumes) section -- you still need to restrict access to volumes that you do not intend to share with unauthenticated users! it is not sufficient to use rules in the reverseproxy to restrict access to just the `/share` folder.
+
+
 ## batch rename

 select some files and press `F2` to bring up the rename UI
@@ -800,6 +850,7 @@ some hilights:
 * OS integration; control playback from your phone's lockscreen ([windows](https://user-images.githubusercontent.com/241032/233213022-298a98ba-721a-4cf1-a3d4-f62634bc53d5.png) // [iOS](https://user-images.githubusercontent.com/241032/142711926-0700be6c-3e31-47b3-9928-53722221f722.png) // [android](https://user-images.githubusercontent.com/241032/233212311-a7368590-08c7-4f9f-a1af-48ccf3f36fad.png))
 * shows the audio waveform in the seekbar
 * not perfectly gapless but can get really close (see settings + eq below); good enough to enjoy gapless albums as intended
+* videos can be played as audio, without wasting bandwidth on the video

 click the `play` link next to an audio file, or copy the link target to [share it](https://a.ocv.me/pub/demo/music/Ubiktune%20-%20SOUNDSHOCK%202%20-%20FM%20FUNK%20TERRROR!!/#af-1fbfba61&t=18) (optionally with a timestamp to start playing from, like that example does)

@@ -987,7 +1038,7 @@ some recommended FTP / FTPS clients; `wark` = example password:

 ## webdav server

-with read-write support,  supports winXP and later, macos, nautilus/gvfs
+with read-write support,  supports winXP and later, macos, nautilus/gvfs  ... a greay way to [access copyparty straight from the file explorer in your OS](#mount-as-drive)

 click the [connect](http://127.0.0.1:3923/?hc) button in the control-panel to see connection instructions for windows, linux, macos

@@ -1113,9 +1164,41 @@ NOTE: because discord (and maybe others) strip query args such as `?raw` in open
 if you want to entirely replace the copyparty response with your own jinja2 template, give the template filepath to `--og-tpl` or volflag `og_tpl` (all members of `HttpCli` are available through the `this` object)


+## file deduplication
+
+enable symlink-based upload deduplication  globally with `--dedup` or per-volume with volflag `dedup`
+
+when someone tries to upload a file that already exists on the server, the upload will be politely declined and a symlink is created instead, pointing to the nearest copy on disk, thus reducinc disk space usage
+
+**warning:** when enabling dedup, you should also:
+* enable indexing with `-e2dsa` or volflag `e2dsa` (see [file indexing](#file-indexing) section below); strongly recommended
+* ...and/or `--hardlink-only` to use hardlink-based deduplication instead of symlinks; see explanation below
+
+it will not be safe to rename/delete files if you only enable dedup and none of the above; if you enable indexing then it is not *necessary* to also do hardlinks (but you may still want to)
+
+by default, deduplication is done based on symlinks (symbolic links); these are tiny files which are pointers to the nearest full copy of the file
+
+you can choose to use hardlinks instead of softlinks, globally with `--hardlink-only` or volflag `hardlinkonly`;
+
+advantages of using hardlinks:
+* hardlinks are more compatible with other software; they behave entirely like regular files
+* you can safely move and rename files using other file managers
+  * symlinks need to be managed by copyparty to ensure the destinations remain correct
+
+advantages of using symlinks (default):
+* each symlink can have its own last-modified timestamp, but a single timestamp is shared by all hardlinks
+* symlinks make it more obvious to other software that the file is not a regular file, so this can be less dangerous
+  * hardlinks look like regular files, so other software may assume they are safe to edit without affecting the other copies
+
+**warning:** if you edit the contents of a deduplicated file, then you will also edit all other copies of that file! This is especially surprising with hardlinks, because they look like regular files, but that same file exists in multiple locations
+
+global-option `--xlink` / volflag `xlink` additionally enables deduplication across volumes, but this is probably buggy and not recommended
+
+
+
 ## file indexing

-enables dedup and music search ++
+enable music search, upload-undo, and better dedup

 file indexing relies on two database tables, the up2k filetree (`-e2d`) and the metadata tags (`-e2t`), stored in `.hist/up2k.db`. Configuration can be done through arguments, volflags, or a mix of both.

@@ -1129,7 +1212,6 @@ through arguments:
 * `-e2v` verfies file integrity at startup, comparing hashes from the db
 * `-e2vu` patches the database with the new hashes from the filesystem
 * `-e2vp` panics and kills copyparty instead
-* `--xlink` enables deduplication across volumes

 the same arguments can be set as volflags, in addition to `d2d`, `d2ds`, `d2t`, `d2ts`, `d2v` for disabling:
 * `-v ~/music::r:c,e2ds,e2tsr` does a full reindex of everything on startup
@@ -1142,7 +1224,6 @@ note:
 * upload-times can be displayed in the file listing by enabling the `.up_at` metadata key, either globally with `-e2d -mte +.up_at` or per-volume with volflags `e2d,mte=+.up_at` (will have a ~17% performance impact on directory listings)
 * `e2tsr` is probably always overkill, since `e2ds`/`e2dsa` would pick up any file modifications and `e2ts` would then reindex those, unless there is a new copyparty version with new parsers and the release note says otherwise
 * the rescan button in the admin panel has no effect unless the volume has `-e2ds` or higher
-* deduplication is possible on windows if you run copyparty as administrator (not saying you should!)

 ### exclude-patterns

@@ -1311,6 +1392,8 @@ you can set hooks before and/or after an event happens, and currently you can ho

 there's a bunch of flags and stuff, see `--help-hooks`

+if you want to write your own hooks, see [devnotes](./docs/devnotes.md#event-hooks)
+

 ### upload events

@@ -1351,6 +1434,29 @@ there is a [docker-compose example](./docs/examples/docker/idp-authelia-traefik)

 a more complete example of the copyparty configuration options [look like this](./docs/examples/docker/idp/copyparty.conf)

+but if you just want to let users change their own passwords, then you probably want [user-changeable passwords](#user-changeable-passwords) instead
+
+
+## user-changeable passwords
+
+if permitted, users can change their own passwords  in the control-panel
+
+* not compatible with [identity providers](#identity-providers)
+
+* must be enabled with `--chpw` because account-sharing is a popular usecase
+
+  * if you want to enable the feature but deny password-changing for a specific list of accounts, you can do that with `--chpw-no name1,name2,name3,...`
+
+* to perform a password reset, edit the server config and give the user another password there, then do a [config reload](#server-config) or server restart
+
+* the custom passwords are kept in a textfile at filesystem-path `--chpw-db`, by default `chpw.json` in the copyparty config folder
+
+  * if you run multiple copyparty instances with different users you *almost definitely* want to specify separate DBs for each instance
+
+  * if [password hashing](#password-hashing) is enbled, the passwords in the db are also hashed
+
+    * ...which means that all user-defined passwords will be forgotten if you change password-hashing settings
+

 ## using the cloud as storage

@@ -1451,10 +1557,14 @@ you can either:
 * or do location-based proxying, using `--rp-loc=/stuff` to tell copyparty where it is mounted -- has a slight performance cost and higher chance of bugs
  * if copyparty says `incorrect --rp-loc or webserver config; expected vpath starting with [...]` it's likely because the webserver is stripping away the proxy location from the request URLs -- see the `ProxyPass` in the apache example below

+when running behind a reverse-proxy (this includes services like cloudflare), it is important to configure real-ip correctly, as many features rely on knowing the client's IP. Look out for red and yellow log messages which explain how to do this. But basically, set `--xff-hdr` to the name of the http header to read the IP from (usually `x-forwarded-for`, but cloudflare uses `cf-connecting-ip`), and then `--xff-src` to the IP of the reverse-proxy so copyparty will trust the xff-hdr. Note that `--rp-loc` in particular will not work at all unless you do this
+
 some reverse proxies (such as [Caddy](https://caddyserver.com/)) can automatically obtain a valid https/tls certificate for you, and some support HTTP/2 and QUIC which *could* be a nice speed boost, depending on a lot of factors
 * **warning:** nginx-QUIC (HTTP/3) is still experimental and can make uploads much slower, so HTTP/1.1 is recommended for now
 * depending on server/client, HTTP/1.1 can also be 5x faster than HTTP/2

+for improved security (and a 10% performance boost) consider listening on a unix-socket with `-i unix:770:www:/tmp/party.sock` (permission `770` means only members of group `www` can access it)
+
 example webserver configs:

 * [nginx config](contrib/nginx/copyparty.conf) -- entire domain/subdomain
@@ -1555,6 +1665,23 @@ in a config-file, this is the same as:
 run copyparty with `--mimes` to list all the default mappings


+### feature chickenbits
+
+buggy feature? rip it out  by setting any of the following environment variables to disable its associated bell or whistle,
+
+| env-var              | what it does |
+| -------------------- | ------------ |
+| `PRTY_NO_IFADDR`     | disable ip/nic discovery by poking into your OS with ctypes |
+| `PRTY_NO_IPV6`       | disable some ipv6 support (should not be necessary since windows 2000) |
+| `PRTY_NO_LZMA`       | disable streaming xz compression of incoming uploads |
+| `PRTY_NO_MP`         | disable all use of the python `multiprocessing` module (actual multithreading, cpu-count for parsers/thumbnailers) |
+| `PRTY_NO_SQLITE`     | disable all database-related functionality (file indexing, metadata indexing, most file deduplication logic) |
+| `PRTY_NO_TLS`        | disable native HTTPS support; if you still want to accept HTTPS connections then TLS must now be terminated by a reverse-proxy |
+| `PRTY_NO_TPOKE`      | disable systemd-tmpfilesd avoider |
+
+example: `PRTY_NO_IFADDR=1 python3 copyparty-sfx.py`
+
+
 # packages

 the party might be closer than you think
@@ -1762,6 +1889,7 @@ interact with copyparty using non-browser clients
  * [rclone](https://rclone.org/) as client can give ~5x performance, see [./docs/rclone.md](docs/rclone.md)

 * sharex (screenshot utility): see [./contrib/sharex.sxcu](contrib/#sharexsxcu)
+  * and for screenshots on linux, see [./contrib/flameshot.sh](./contrib/flameshot.sh)

 * contextlet (web browser integration); see [contrib contextlet](contrib/#send-to-cppcontextletjson)

@@ -1798,7 +1926,7 @@ alternatively, some alternatives roughly sorted by speed (unreproducible benchma
 * [rclone-http](./docs/rclone.md) (26s), read-only
 * [partyfuse.py](./bin/#partyfusepy) (35s), read-only
 * [rclone-ftp](./docs/rclone.md) (47s), read/WRITE
-* davfs2 (103s), read/WRITE, *very fast* on small files
+* davfs2 (103s), read/WRITE
 * [win10-webdav](#webdav-server) (138s), read/WRITE
 * [win10-smb2](#smb-server) (387s), read/WRITE

@@ -1838,6 +1966,9 @@ below are some tweaks roughly ordered by usefulness:
 * `-q` disables logging and can help a bunch, even when combined with `-lo` to redirect logs to file
 * `--hist` pointing to a fast location (ssd) will make directory listings and searches faster when `-e2d` or `-e2t` is set
  * and also makes thumbnails load faster, regardless of e2d/e2t
+* `--dedup` enables deduplication and thus avoids writing to the HDD if someone uploads a dupe
+* `--safe-dedup 1` makes deduplication much faster during upload by skipping verification of file contents; safe if there is no other software editing/moving the files in the volumes
+* `--no-dirsz` shows the size of folder inodes instead of the total size of the contents, giving about 30% faster folder listings
 * `--no-hash .` when indexing a network-disk if you don't care about the actual filehashes and only want the names/tags searchable
 * if your volumes are on a network-disk such as NFS / SMB / s3, specifying larger values for `--iobuf` and/or `--s-rd-sz` and/or `--s-wr-sz` may help; try setting all of them to `524288` or `1048576` or `4194304`
 * `--no-htp --hash-mt=0 --mtag-mt=1 --th-mt=1` minimizes the number of threads; can help in some eccentric environments (like the vscode debugger)
@@ -1877,6 +2008,7 @@ some notes on hardening
  * cors doesn't work right otherwise
 * if you allow anonymous uploads or otherwise don't trust the contents of a volume, you can prevent XSS with volflag `nohtml`
  * this returns html documents as plaintext, and also disables markdown rendering
+* when running behind a reverse-proxy, listen on a unix-socket for tighter access control (and more performance); see [reverse-proxy](#reverse-proxy) or `--help-bind`

 safety profiles:

@@ -1891,7 +2023,7 @@ safety profiles:
  * `--hardlink` creates hardlinks instead of symlinks when deduplicating uploads, which is less maintenance
    * however note if you edit one file it will also affect the other copies
  * `--vague-403` returns a "404 not found" instead of "401 unauthorized" which is a common enterprise meme
-  * `--nih` removes the server hostname from directory listings
+  * `-nih` removes the server hostname from directory listings

 * option `-sss` is a shortcut for the above plus:
  * `--no-dav` disables webdav support
@@ -2041,6 +2173,37 @@ enable [smb](#smb-server) support (**not** recommended):
 `pyvips` gives higher quality thumbnails than `Pillow` and is 320% faster, using 270% more ram: `sudo apt install libvips42 && python3 -m pip install --user -U pyvips`


+### dependency chickenbits
+
+prevent loading an optional dependency  , for example if:
+
+* you have an incompatible version installed and it causes problems
+* you just don't want copyparty to use it, maybe to save ram
+
+set any of the following environment variables to disable its associated optional feature,
+
+| env-var              | what it does |
+| -------------------- | ------------ |
+| `PRTY_NO_ARGON2`     | disable argon2-cffi password hashing |
+| `PRTY_NO_CFSSL`      | never attempt to generate self-signed certificates using [cfssl](https://github.com/cloudflare/cfssl) |
+| `PRTY_NO_FFMPEG`     | **audio transcoding** goes byebye, **thumbnailing** must be handled by Pillow/libvips |
+| `PRTY_NO_FFPROBE`    | **audio transcoding** goes byebye, **thumbnailing** must be handled by Pillow/libvips, **metadata-scanning** must be handled by mutagen |
+| `PRTY_NO_MUTAGEN`    | do not use [mutagen](https://pypi.org/project/mutagen/) for reading metadata from media files; will fallback to ffprobe |
+| `PRTY_NO_PIL`        | disable all [Pillow](https://pypi.org/project/pillow/)-based thumbnail support; will fallback to libvips or ffmpeg |
+| `PRTY_NO_PILF`       | disable Pillow `ImageFont` text rendering, used for folder thumbnails |
+| `PRTY_NO_PIL_AVIF`   | disable 3rd-party Pillow plugin for [AVIF support](https://pypi.org/project/pillow-avif-plugin/) |
+| `PRTY_NO_PIL_HEIF`   | disable 3rd-party Pillow plugin for [HEIF support](https://pypi.org/project/pyheif-pillow-opener/) |
+| `PRTY_NO_PIL_WEBP`   | disable use of native webp support in Pillow |
+| `PRTY_NO_PSUTIL`     | do not use [psutil](https://pypi.org/project/psutil/) for reaping stuck hooks and plugins on Windows |
+| `PRTY_NO_VIPS`       | disable all [libvips](https://pypi.org/project/pyvips/)-based thumbnail support; will fallback to Pillow or ffmpeg |
+
+example: `PRTY_NO_PIL=1 python3 copyparty-sfx.py`
+
+* `PRTY_NO_PIL` saves ram
+* `PRTY_NO_VIPS` saves ram and startup time
+* python2.7 on windows: `PRTY_NO_FFMPEG` + `PRTY_NO_FFPROBE` saves startup time
+
+
 ## optional gpl stuff

 some bundled tools have copyleft dependencies, see [./bin/#mtag](bin/#mtag)
--- a/bin/hooks/README.md
+++ b/bin/hooks/README.md
@@ -2,7 +2,7 @@ standalone programs which are executed by copyparty when an event happens (uploa

 these programs either take zero arguments, or a filepath (the affected file), or a json message with filepath + additional info

-run copyparty with `--help-hooks` for usage details / hook type explanations (xbu/xau/xiu/xbr/xar/xbd/xad)
+run copyparty with `--help-hooks` for usage details / hook type explanations (xm/xbu/xau/xiu/xbr/xar/xbd/xad/xban)

 > **note:** in addition to event hooks (the stuff described here), copyparty has another api to run your programs/scripts while providing way more information such as audio tags / video codecs / etc and optionally daisychaining data between scripts in a processing pipeline; if that's what you want then see [mtp plugins](../mtag/) instead

@@ -13,6 +13,7 @@ run copyparty with `--help-hooks` for usage details / hook type explanations (xb
 * [image-noexif.py](image-noexif.py) removes image exif by overwriting / directly editing the uploaded file
 * [discord-announce.py](discord-announce.py) announces new uploads on discord using webhooks ([example](https://user-images.githubusercontent.com/241032/215304439-1c1cb3c8-ec6f-4c17-9f27-81f969b1811a.png))
 * [reject-mimetype.py](reject-mimetype.py) rejects uploads unless the mimetype is acceptable
+* [into-the-cache-it-goes.py](into-the-cache-it-goes.py) avoids bugs in caching proxies by immediately downloading each file that is uploaded


 # upload batches
@@ -23,6 +24,7 @@ these are `--xiu` hooks; unlike `xbu` and `xau` (which get executed on every sin

 # before upload
 * [reject-extension.py](reject-extension.py) rejects uploads if they match a list of file extensions
+* [reloc-by-ext.py](reloc-by-ext.py) redirects an upload to another destination based on the file extension


 # on message
--- a/bin/hooks/into-the-cache-it-goes.py
+++ b/bin/hooks/into-the-cache-it-goes.py
@@ -0,0 +1,140 @@
+#!/usr/bin/env python3
+
+import sys
+import json
+import shutil
+import platform
+import subprocess as sp
+from urllib.parse import quote
+
+
+_ = r"""
+try to avoid race conditions in caching proxies
+(primarily cloudflare, but probably others too)
+by means of the most obvious solution possible:
+
+just as each file has finished uploading, use
+the server's external URL to download the file
+so that it ends up in the cache, warm and snug
+
+this intentionally delays the upload response
+as it waits for the file to finish downloading
+before copyparty is allowed to return the URL
+
+NOTE: you must edit this script before use,
+  replacing https://example.com with your URL
+
+NOTE: if the files are only accessible with a
+  password and/or filekey, you must also add
+  a cromulent password in the PASSWORD field
+
+NOTE: needs either wget, curl, or "requests":
+  python3 -m pip install --user -U requests
+
+
+example usage as global config:
+    --xau j,t10,bin/hooks/into-the-cache-it-goes.py
+
+parameters explained,
+    xau = execute after upload
+    j   = this hook needs upload information as json (not just the filename)
+    t10 = abort download and continue if it takes longer than 10sec
+
+example usage as a volflag (per-volume config):
+    -v srv/inc:inc:r:rw,ed:c,xau=j,t10,bin/hooks/into-the-cache-it-goes.py
+                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+    (share filesystem-path srv/inc as volume /inc,
+     readable by everyone, read-write for user 'ed',
+     running this plugin on all uploads with params explained above)
+
+example usage as a volflag in a copyparty config file:
+    [/inc]
+      srv/inc
+      accs:
+        r: *
+        rw: ed
+      flags:
+        xau: j,t10,bin/hooks/into-the-cache-it-goes.py
+"""
+
+
+# replace this with your site's external URL
+# (including the :portnumber if necessary)
+SITE_URL = "https://example.com"
+
+# if downloading is protected by passwords or filekeys,
+# specify a valid password between the quotes below:
+PASSWORD = ""
+
+# if file is larger than this, skip download
+MAX_MEGABYTES = 8
+
+# =============== END OF CONFIG ===============
+
+
+WINDOWS = platform.system() == "Windows"
+
+
+def main():
+    fun = download_with_python
+    if shutil.which("curl"):
+        fun = download_with_curl
+    elif shutil.which("wget"):
+        fun = download_with_wget
+
+    inf = json.loads(sys.argv[1])
+
+    if inf["sz"] > 1024 * 1024 * MAX_MEGABYTES:
+        print("[into-the-cache] file is too large; will not download")
+        return
+
+    file_url = "/"
+    if inf["vp"]:
+        file_url += inf["vp"] + "/"
+    file_url += inf["ap"].replace("\\", "/").split("/")[-1]
+    file_url = SITE_URL.rstrip("/") + quote(file_url, safe=b"/")
+
+    print("[into-the-cache] %s(%s)" % (fun.__name__, file_url))
+    fun(file_url, PASSWORD.strip())
+
+    print("[into-the-cache] Download OK")
+
+
+def download_with_curl(url, pw):
+    cmd = ["curl"]
+
+    if pw:
+        cmd += ["-HPW:%s" % (pw,)]
+
+    nah = sp.DEVNULL
+    sp.check_call(cmd + [url], stdout=nah, stderr=nah)
+
+
+def download_with_wget(url, pw):
+    cmd = ["wget", "-O"]
+
+    cmd += ["nul" if WINDOWS else "/dev/null"]
+
+    if pw:
+        cmd += ["--header=PW:%s" % (pw,)]
+
+    nah = sp.DEVNULL
+    sp.check_call(cmd + [url], stdout=nah, stderr=nah)
+
+
+def download_with_python(url, pw):
+    import requests
+
+    headers = {}
+    if pw:
+        headers["PW"] = pw
+
+    with requests.get(url, headers=headers, stream=True) as r:
+        r.raise_for_status()
+        for _ in r.iter_content(chunk_size=1024 * 256):
+            pass
+
+
+if __name__ == "__main__":
+    main()
--- a/bin/hooks/qbittorrent-magnet.py
+++ b/bin/hooks/qbittorrent-magnet.py
@@ -23,17 +23,18 @@ because the keyword "anime" is in the DESTS config below
 needs python3

 example usage as global config (not a good idea):
-    python copyparty-sfx.py --xm f,j,t60,bin/hooks/qbittorrent-magnet.py
+    python copyparty-sfx.py --xm aw,f,j,t60,bin/hooks/qbittorrent-magnet.py

 parameters explained,
    xm = execute on message (📟)
+    aw = only users with write-access can use this
    f = fork; don't delay other hooks while this is running
    j = provide message information as json (not just the text)
    t60 = abort if qbittorrent has to think about it for more than 1 min

 example usage as a volflag (per-volume config, much better):
-    -v srv/qb:qb:A,ed:c,xm=f,j,t60,bin/hooks/qbittorrent-magnet.py
-                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+    -v srv/qb:qb:A,ed:c,xm=aw,f,j,t60,bin/hooks/qbittorrent-magnet.py
+                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

    (share filesystem-path srv/qb as volume /qb with Admin for user 'ed',
     running this plugin on all messages with the params explained above)
@@ -44,7 +45,7 @@ example usage as a volflag in a copyparty config file:
      accs:
        A: ed
      flags:
-        xm: f,j,t60,bin/hooks/qbittorrent-magnet.py
+        xm: aw,f,j,t60,bin/hooks/qbittorrent-magnet.py

 the volflag examples only kicks in if you send the torrent magnet
 while you're in the /qb folder (or any folder below there)
--- a/bin/hooks/reloc-by-ext.py
+++ b/bin/hooks/reloc-by-ext.py
@@ -0,0 +1,127 @@
+#!/usr/bin/env python3
+
+import json
+import os
+import re
+import sys
+
+
+_ = r"""
+relocate/redirect incoming uploads according to file extension or name
+
+example usage as global config:
+    --xbu j,c1,bin/hooks/reloc-by-ext.py
+
+parameters explained,
+    xbu = execute before upload
+    j   = this hook needs upload information as json (not just the filename)
+    c1  = this hook returns json on stdout, so tell copyparty to read that
+
+example usage as a volflag (per-volume config):
+    -v srv/inc:inc:r:rw,ed:c,xbu=j,c1,bin/hooks/reloc-by-ext.py
+                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+    (share filesystem-path srv/inc as volume /inc,
+     readable by everyone, read-write for user 'ed',
+     running this plugin on all uploads with the params explained above)
+
+example usage as a volflag in a copyparty config file:
+    [/inc]
+      srv/inc
+      accs:
+        r: *
+        rw: ed
+      flags:
+        xbu: j,c1,bin/hooks/reloc-by-ext.py
+
+note: this could also work as an xau hook (after-upload), but
+  because it doesn't need to read the file contents its better
+  as xbu (before-upload) since that's safer / less buggy,
+  and only xbu works with up2k (dragdrop into browser)
+"""
+
+
+PICS = "avif bmp gif heic heif jpeg jpg jxl png psd qoi tga tif tiff webp"
+VIDS = "3gp asf avi flv mkv mov mp4 mpeg mpeg2 mpegts mpg mpg2 nut ogm ogv rm ts vob webm wmv"
+MUSIC = "aac aif aiff alac amr ape dfpwm flac m4a mp3 ogg opus ra tak tta wav wma wv"
+
+
+def main():
+    inf = json.loads(sys.argv[1])
+    vdir, fn = os.path.split(inf["vp"])
+
+    try:
+        fn, ext = fn.rsplit(".", 1)
+    except:
+        # no file extension; pretend it's "bin"
+        ext = "bin"
+
+    ext = ext.lower()
+
+    # this function must end by printing the action to perform;
+    # that's handled by the print(json.dumps(... at the bottom
+    #
+    # the action can contain the following keys:
+    # "vp" is the folder URL to move the upload to,
+    # "ap" is the filesystem-path to move it to (but "vp" is safer),
+    # "fn" overrides the final filename to use
+
+    ##
+    ## some example actions to take; pick one by
+    ## selecting it inside the print at the end:
+    ##
+
+    # create a subfolder named after the filetype and move it into there
+    into_subfolder = {"vp": ext}
+
+    # move it into a toplevel folder named after the filetype
+    into_toplevel = {"vp": "/" + ext}
+
+    # move it into a filetype-named folder next to the target folder
+    into_sibling = {"vp": "../" + ext}
+
+    # move images into "/just/pics", vids into "/just/vids",
+    # music into "/just/tunes", and anything else as-is
+    if ext in PICS.split():
+        by_category = {"vp": "/just/pics"}
+    elif ext in VIDS.split():
+        by_category = {"vp": "/just/vids"}
+    elif ext in MUSIC.split():
+        by_category = {"vp": "/just/tunes"}
+    else:
+        by_category = {}  # no action
+
+    # now choose the default effect to apply; can be any of these:
+    # into_subfolder  into_toplevel  into_sibling  by_category
+    effect = {"vp": "/junk"}
+
+    ##
+    ## but we can keep going, adding more speicifc rules
+    ## which can take precedence, replacing the fallback
+    ## effect we just specified:
+    ##
+
+    fn = fn.lower()  # lowercase filename to make this easier
+
+    if "screenshot" in fn:
+        effect = {"vp": "/ss"}
+    if "mpv_" in fn:
+        effect = {"vp": "/anishots"}
+    elif "debian" in fn or "biebian" in fn:
+        effect = {"vp": "/linux-ISOs"}
+    elif re.search(r"ep(isode |\.)?[0-9]", fn):
+        effect = {"vp": "/podcasts"}
+
+    # regex lets you grab a part of the matching
+    # text and use that in the upload path:
+    m = re.search(r"\b(op|ed)([^a-z]|$)", fn)
+    if m:
+        # the regex matched; use "anime-op" or "anime-ed"
+        effect = {"vp": "/anime-" + m[1]}
+
+    # aaand DO IT
+    print(json.dumps({"reloc": effect}))
+
+
+if __name__ == "__main__":
+    main()
--- a/bin/hooks/wget.py
+++ b/bin/hooks/wget.py
@@ -12,18 +12,19 @@ application/x-www-form-urlencoded (for example using the
 📟 message-to-server-log in the web-ui)

 example usage as global config:
-    --xm f,j,t3600,bin/hooks/wget.py
+    --xm aw,f,j,t3600,bin/hooks/wget.py

 parameters explained,
    xm = execute on message-to-server-log
+    aw = only users with write-access can use this
    f = fork; don't delay other hooks while this is running
    j = provide message information as json (not just the text)
    c3 = mute all output
    t3600 = timeout and abort download after 1 hour

 example usage as a volflag (per-volume config):
-    -v srv/inc:inc:r:rw,ed:c,xm=f,j,t3600,bin/hooks/wget.py
-                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+    -v srv/inc:inc:r:rw,ed:c,xm=aw,f,j,t3600,bin/hooks/wget.py
+                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

    (share filesystem-path srv/inc as volume /inc,
     readable by everyone, read-write for user 'ed',
@@ -36,7 +37,7 @@ example usage as a volflag in a copyparty config file:
        r: *
        rw: ed
      flags:
-        xm: f,j,t3600,bin/hooks/wget.py     
+        xm: aw,f,j,t3600,bin/hooks/wget.py

 the volflag examples only kicks in if you send the message
 while you're in the /inc folder (or any folder below there)
--- a/bin/u2c.py
+++ b/bin/u2c.py
@@ -1,8 +1,8 @@
 #!/usr/bin/env python3
 from __future__ import print_function, unicode_literals

-S_VERSION = "1.18"
-S_BUILD_DT = "2024-06-01"
+S_VERSION = "1.24"
+S_BUILD_DT = "2024-09-05"

 """
 u2c.py: upload to copyparty
@@ -20,6 +20,7 @@ import sys
 import stat
 import math
 import time
+import json
 import atexit
 import signal
 import socket
@@ -40,19 +41,25 @@ except:

 try:
    import requests
+
+    req_ses = requests.Session()
 except ImportError as ex:
-    if EXE:
+    if "-" in sys.argv or "-h" in sys.argv:
+        m = ""
+    elif EXE:
        raise
    elif sys.version_info > (2, 7):
-        m = "\nERROR: need 'requests'; please run this command:\n {0} -m pip install --user requests\n"
+        m = "\nERROR: need 'requests'{0}; please run this command:\n {1} -m pip install --user requests\n"
    else:
        m = "requests/2.18.4 urllib3/1.23 chardet/3.0.4 certifi/2020.4.5.1 idna/2.7"
        m = ["   https://pypi.org/project/" + x + "/#files" for x in m.split()]
-        m = "\n  ERROR: need these:\n" + "\n".join(m) + "\n"
+        m = "\n  ERROR: need these{0}:\n" + "\n".join(m) + "\n"
        m += "\n  for f in *.whl; do unzip $f; done; rm -r *.dist-info\n"

-    print(m.format(sys.executable), "\nspecifically,", ex)
-    sys.exit(1)
+    if m:
+        t = " when not running with '-h' or url '-'"
+        print(m.format(t, sys.executable), "\nspecifically,", ex)
+        sys.exit(1)


 # from copyparty/__init__.py
@@ -75,11 +82,26 @@ else:
 VT100 = platform.system() != "Windows"


-req_ses = requests.Session()
+try:
+    UTC = datetime.timezone.utc
+except:
+    TD_ZERO = datetime.timedelta(0)
+
+    class _UTC(datetime.tzinfo):
+        def utcoffset(self, dt):
+            return TD_ZERO
+
+        def tzname(self, dt):
+            return "UTC"
+
+        def dst(self, dt):
+            return TD_ZERO
+
+    UTC = _UTC()


 class Daemon(threading.Thread):
-    def __init__(self, target, name = None, a = None):
+    def __init__(self, target, name=None, a=None):
        threading.Thread.__init__(self, name=name)
        self.a = a or ()
        self.fun = target
@@ -110,18 +132,22 @@ class File(object):
        # set by get_hashlist
        self.cids = []  # type: list[tuple[str, int, int]]  # [ hash, ofs, sz ]
        self.kchunks = {}  # type: dict[str, tuple[int, int]]  # hash: [ ofs, sz ]
+        self.t_hash = 0.0  # type: float

        # set by handshake
        self.recheck = False  # duplicate; redo handshake after all files done
        self.ucids = []  # type: list[str]  # chunks which need to be uploaded
        self.wark = ""  # type: str
        self.url = ""  # type: str
-        self.nhs = 0
+        self.nhs = 0  # type: int

        # set by upload
+        self.t0_up = 0.0  # type: float
+        self.t1_up = 0.0  # type: float
+        self.nojoin = 0  # type: int
        self.up_b = 0  # type: int
        self.up_c = 0  # type: int
-        self.cd = 0
+        self.cd = 0  # type: int

        # t = "size({}) lmod({}) top({}) rel({}) abs({}) name({})\n"
        # eprint(t.format(self.size, self.lmod, self.top, self.rel, self.abs, self.name))
@@ -130,10 +156,20 @@ class File(object):
 class FileSlice(object):
    """file-like object providing a fixed window into a file"""

-    def __init__(self, file, cid):
+    def __init__(self, file, cids):
        # type: (File, str) -> None

-        self.car, self.len = file.kchunks[cid]
+        self.file = file
+        self.cids = cids
+
+        self.car, tlen = file.kchunks[cids[0]]
+        for cid in cids[1:]:
+            ofs, clen = file.kchunks[cid]
+            if ofs != self.car + tlen:
+                raise Exception(9)
+            tlen += clen
+
+        self.len = tlen
        self.cdr = self.car + self.len
        self.ofs = 0  # type: int
        self.f = open(file.abs, "rb", 512 * 1024)
@@ -256,6 +292,12 @@ class MTHash(object):
 _print = print


+def safe_print(*a, **ka):
+    ka["end"] = ""
+    zs = " ".join([unicode(x) for x in a])
+    _print(zs + "\n", **ka)
+
+
 def eprint(*a, **ka):
    ka["file"] = sys.stderr
    ka["end"] = ""
@@ -269,18 +311,17 @@ def eprint(*a, **ka):

 def flushing_print(*a, **ka):
    try:
-        _print(*a, **ka)
+        safe_print(*a, **ka)
    except:
        v = " ".join(str(x) for x in a)
        v = v.encode("ascii", "replace").decode("ascii")
-        _print(v, **ka)
+        safe_print(v, **ka)

    if "flush" not in ka:
        sys.stdout.flush()


-if not VT100:
-    print = flushing_print
+print = safe_print if VT100 else flushing_print


 def termsize():
@@ -357,7 +398,7 @@ def undns(url):
    usp = urlsplit(url)
    hn = usp.hostname
    gai = None
-    eprint("resolving host [{0}] ...".format(hn), end="")
+    eprint("resolving host [%s] ..." % (hn,))
    try:
        gai = socket.getaddrinfo(hn, None)
        hn = gai[0][4][0]
@@ -375,7 +416,7 @@ def undns(url):

    usp = usp._replace(netloc=hn)
    url = urlunsplit(usp)
-    eprint(" {0}".format(url))
+    eprint(" %s\n" % (url,))
    return url


@@ -518,6 +559,8 @@ def get_hashlist(file, pcb, mth):
    file_ofs = 0
    ret = []
    with open(file.abs, "rb", 512 * 1024) as f:
+        t0 = time.time()
+
        if mth and file.size >= 1024 * 512:
            ret = mth.hash(f, file.size, chunk_sz, pcb, file)
            file_rem = 0
@@ -544,10 +587,12 @@ def get_hashlist(file, pcb, mth):
            if pcb:
                pcb(file, file_ofs)

+    file.t_hash = time.time() - t0
    file.cids = ret
    file.kchunks = {}
    for k, v1, v2 in ret:
-        file.kchunks[k] = [v1, v2]
+        if k not in file.kchunks:
+            file.kchunks[k] = [v1, v2]


 def handshake(ar, file, search):
@@ -589,7 +634,8 @@ def handshake(ar, file, search):
        sc = 600
        txt = ""
        try:
-            r = req_ses.post(url, headers=headers, json=req)
+            zs = json.dumps(req, separators=(",\n", ": "))
+            r = req_ses.post(url, headers=headers, data=zs)
            sc = r.status_code
            txt = r.text
            if sc < 400:
@@ -636,13 +682,20 @@ def handshake(ar, file, search):
    return r["hash"], r["sprs"]


-def upload(file, cid, pw, stats):
-    # type: (File, str, str, str) -> None
-    """upload one specific chunk, `cid` (a chunk-hash)"""
+def upload(fsl, pw, stats):
+    # type: (FileSlice, str, str) -> None
+    """upload a range of file data, defined by one or more `cid` (chunk-hash)"""
+
+    ctxt = fsl.cids[0]
+    if len(fsl.cids) > 1:
+        n = 192 // len(fsl.cids)
+        n = 9 if n > 9 else 2 if n < 2 else n
+        zsl = [zs[:n] for zs in fsl.cids[1:]]
+        ctxt += ",%d,%s" % (n, "".join(zsl))

    headers = {
-        "X-Up2k-Hash": cid,
-        "X-Up2k-Wark": file.wark,
+        "X-Up2k-Hash": ctxt,
+        "X-Up2k-Wark": fsl.file.wark,
        "Content-Type": "application/octet-stream",
    }

@@ -652,15 +705,24 @@ def upload(file, cid, pw, stats):
    if pw:
        headers["Cookie"] = "=".join(["cppwd", pw])

-    f = FileSlice(file, cid)
    try:
-        r = req_ses.post(file.url, headers=headers, data=f)
+        r = req_ses.post(fsl.file.url, headers=headers, data=fsl)
+
+        if r.status_code == 400:
+            txt = r.text
+            if (
+                "already being written" in txt
+                or "already got that" in txt
+                or "only sibling chunks" in txt
+            ):
+                fsl.file.nojoin = 1
+
        if not r:
            raise Exception(repr(r))

        _ = r.content
    finally:
-        f.f.close()
+        fsl.f.close()


 class Ctl(object):
@@ -724,6 +786,9 @@ class Ctl(object):
        if ar.safe:
            self._safe()
        else:
+            self.at_hash = 0.0
+            self.at_up = 0.0
+            self.at_upr = 0.0
            self.hash_f = 0
            self.hash_c = 0
            self.hash_b = 0
@@ -731,8 +796,6 @@ class Ctl(object):
            self.up_c = 0
            self.up_b = 0
            self.up_br = 0
-            self.hasher_busy = 1
-            self.handshaker_busy = 0
            self.uploader_busy = 0
            self.serialized = False

@@ -742,8 +805,11 @@ class Ctl(object):
            self.eta = "99:99:99"

            self.mutex = threading.Lock()
+            self.exit_cond = threading.Condition()
+            self.uploader_alive = ar.j
+            self.handshaker_alive = ar.j
            self.q_handshake = Queue()  # type: Queue[File]
-            self.q_upload = Queue()  # type: Queue[tuple[File, str]]
+            self.q_upload = Queue()  # type: Queue[FileSlice]

            self.st_hash = [None, "(idle, starting...)"]  # type: tuple[File, int]
            self.st_up = [None, "(idle, starting...)"]  # type: tuple[File, int]
@@ -788,7 +854,8 @@ class Ctl(object):
                for nc, cid in enumerate(hs):
                    print("  {0} up {1}".format(ncs - nc, cid))
                    stats = "{0}/0/0/{1}".format(nf, self.nfiles - nf)
-                    upload(file, cid, self.ar.a, stats)
+                    fslice = FileSlice(file, [cid])
+                    upload(fslice, self.ar.a, stats)

            print("  ok!")
            if file.recheck:
@@ -797,7 +864,7 @@ class Ctl(object):
        if not self.recheck:
            return

-        eprint("finalizing {0} duplicate files".format(len(self.recheck)))
+        eprint("finalizing %d duplicate files\n" % (len(self.recheck),))
        for file in self.recheck:
            handshake(self.ar, file, search)

@@ -811,27 +878,21 @@ class Ctl(object):
            Daemon(self.handshaker)
            Daemon(self.uploader)

-        idles = 0
-        while idles < 3:
-            time.sleep(0.07)
+        while True:
+            with self.exit_cond:
+                self.exit_cond.wait(0.07)
            with self.mutex:
-                if (
-                    self.q_handshake.empty()
-                    and self.q_upload.empty()
-                    and not self.hasher_busy
-                    and not self.handshaker_busy
-                    and not self.uploader_busy
-                ):
-                    idles += 1
-                else:
-                    idles = 0
+                if not self.handshaker_alive and not self.uploader_alive:
+                    break
+                st_hash = self.st_hash[:]
+                st_up = self.st_up[:]

            if VT100 and not self.ar.ns:
                maxlen = ss.w - len(str(self.nfiles)) - 14
                txt = "\033[s\033[{0}H".format(ss.g)
                for y, k, st, f in [
-                    [0, "hash", self.st_hash, self.hash_f],
-                    [1, "send", self.st_up, self.up_f],
+                    [0, "hash", st_hash, self.hash_f],
+                    [1, "send", st_up, self.up_f],
                ]:
                    txt += "\033[{0}H{1}:".format(ss.g + y, k)
                    file, arg = st
@@ -871,10 +932,17 @@ class Ctl(object):
            t = "{0} eta @ {1}/s, {2}, {3}# left".format(self.eta, spd, sleft, nleft)
            eprint(txt + "\033]0;{0}\033\\\r{0}{1}".format(t, tail))

+        if self.hash_b and self.at_hash:
+            spd = humansize(self.hash_b / self.at_hash)
+            eprint("\nhasher: %.2f sec, %s/s\n" % (self.at_hash, spd))
+        if self.up_b and self.at_up:
+            spd = humansize(self.up_b / self.at_up)
+            eprint("upload: %.2f sec, %s/s\n" % (self.at_up, spd))
+
        if not self.recheck:
            return

-        eprint("finalizing {0} duplicate files".format(len(self.recheck)))
+        eprint("finalizing %d duplicate files\n" % (len(self.recheck),))
        for file in self.recheck:
            handshake(self.ar, file, False)

@@ -980,11 +1048,42 @@ class Ctl(object):
                self.hash_f += 1
                self.hash_c += len(file.cids)
                self.hash_b += file.size
+                if self.ar.wlist:
+                    self.up_f = self.hash_f
+                    self.up_c = self.hash_c
+                    self.up_b = self.hash_b
+
+            if self.ar.wlist:
+                zsl = [self.ar.wsalt, str(file.size)] + [x[0] for x in file.kchunks]
+                zb = hashlib.sha512("\n".join(zsl).encode("utf-8")).digest()[:33]
+                wark = base64.urlsafe_b64encode(zb).decode("utf-8")
+                vp = file.rel.decode("utf-8")
+                if self.ar.jw:
+                    print("%s  %s" % (wark, vp))
+                else:
+                    zd = datetime.datetime.fromtimestamp(file.lmod, UTC)
+                    dt = "%04d-%02d-%02d %02d:%02d:%02d" % (
+                        zd.year,
+                        zd.month,
+                        zd.day,
+                        zd.hour,
+                        zd.minute,
+                        zd.second,
+                    )
+                    print("%s %12d %s %s" % (dt, file.size, wark, vp))
+                continue

            self.q_handshake.put(file)

-        self.hasher_busy = 0
        self.st_hash = [None, "(finished)"]
+        self._check_if_done()
+
+    def _check_if_done(self):
+        with self.mutex:
+            if self.nfiles - self.up_f:
+                return
+        for _ in range(self.ar.j):
+            self.q_handshake.put(None)

    def handshaker(self):
        search = self.ar.s
@@ -992,8 +1091,10 @@ class Ctl(object):
        while True:
            file = self.q_handshake.get()
            if not file:
+                with self.mutex:
+                    self.handshaker_alive -= 1
                self.q_upload.put(None)
-                break
+                return

            upath = file.abs.decode("utf-8", "replace")
            if not VT100:
@@ -1005,9 +1106,6 @@ class Ctl(object):
                self.errs += 1
                continue

-            with self.mutex:
-                self.handshaker_busy += 1
-
            while time.time() < file.cd:
                time.sleep(0.1)

@@ -1015,17 +1113,17 @@ class Ctl(object):
            if search:
                if hs:
                    for hit in hs:
-                        t = "found: {0}\n  {1}{2}\n"
-                        print(t.format(upath, burl, hit["rp"]), end="")
+                        t = "found: {0}\n  {1}{2}"
+                        print(t.format(upath, burl, hit["rp"]))
                else:
-                    print("NOT found: {0}\n".format(upath), end="")
+                    print("NOT found: {0}".format(upath))

                with self.mutex:
                    self.up_f += 1
                    self.up_c += len(file.cids)
                    self.up_b += file.size
-                    self.handshaker_busy -= 1

+                self._check_if_done()
                continue

            if file.recheck:
@@ -1057,24 +1155,75 @@ class Ctl(object):
                        file.up_b -= sz

                file.ucids = hs
-                self.handshaker_busy -= 1

            if not hs:
-                kw = "uploaded" if file.up_b else "   found"
-                print("{0} {1}".format(kw, upath))
-            for cid in hs:
-                self.q_upload.put([file, cid])
+                self.at_hash += file.t_hash
+
+                if self.ar.spd:
+                    if VT100:
+                        c1 = "\033[36m"
+                        c2 = "\033[0m"
+                    else:
+                        c1 = c2 = ""
+
+                    spd_h = humansize(file.size / file.t_hash, True)
+                    if file.up_b:
+                        t_up = file.t1_up - file.t0_up
+                        spd_u = humansize(file.size / t_up, True)
+
+                        t = "uploaded %s %s(h:%.2fs,%s/s,up:%.2fs,%s/s)%s"
+                        print(t % (upath, c1, file.t_hash, spd_h, t_up, spd_u, c2))
+                    else:
+                        t = "   found %s %s(%.2fs,%s/s)%s"
+                        print(t % (upath, c1, file.t_hash, spd_h, c2))
+                else:
+                    kw = "uploaded" if file.up_b else "   found"
+                    print("{0} {1}".format(kw, upath))
+
+                self._check_if_done()
+                continue
+
+            chunksz = up2k_chunksize(file.size)
+            njoin = (self.ar.sz * 1024 * 1024) // chunksz
+            cs = hs[:]
+            while cs:
+                fsl = FileSlice(file, cs[:1])
+                try:
+                    if file.nojoin:
+                        raise Exception()
+                    for n in range(2, min(len(cs), njoin + 1)):
+                        fsl = FileSlice(file, cs[:n])
+                except:
+                    pass
+                cs = cs[len(fsl.cids) :]
+                self.q_upload.put(fsl)

    def uploader(self):
        while True:
-            task = self.q_upload.get()
-            if not task:
-                self.st_up = [None, "(finished)"]
-                break
+            fsl = self.q_upload.get()
+            if not fsl:
+                done = False
+                with self.mutex:
+                    self.uploader_alive -= 1
+                    if not self.uploader_alive:
+                        done = not self.handshaker_alive
+                        self.st_up = [None, "(finished)"]
+                if done:
+                    with self.exit_cond:
+                        self.exit_cond.notify_all()
+                return
+
+            file = fsl.file
+            cids = fsl.cids

            with self.mutex:
+                if not self.uploader_busy:
+                    self.at_upr = time.time()
                self.uploader_busy += 1
-                self.t0_up = self.t0_up or time.time()
+                if not file.t0_up:
+                    file.t0_up = time.time()
+                    if not self.t0_up:
+                        self.t0_up = file.t0_up

            stats = "%d/%d/%d/%d %d/%d %s" % (
                self.up_f,
@@ -1086,28 +1235,30 @@ class Ctl(object):
                self.eta,
            )

-            file, cid = task
            try:
-                upload(file, cid, self.ar.a, stats)
+                upload(fsl, self.ar.a, stats)
            except Exception as ex:
-                t = "upload failed, retrying: {0} #{1} ({2})\n"
-                eprint(t.format(file.name, cid[:8], ex))
+                t = "upload failed, retrying: %s #%s+%d (%s)\n"
+                eprint(t % (file.name, cids[0][:8], len(cids) - 1, ex))
                file.cd = time.time() + self.ar.cd
                # handshake will fix it

            with self.mutex:
-                sz = file.kchunks[cid][1]
-                file.ucids = [x for x in file.ucids if x != cid]
+                sz = fsl.len
+                file.ucids = [x for x in file.ucids if x not in cids]
                if not file.ucids:
+                    file.t1_up = time.time()
                    self.q_handshake.put(file)

-                self.st_up = [file, cid]
+                self.st_up = [file, cids[0]]
                file.up_b += sz
                self.up_b += sz
                self.up_br += sz
                file.up_c += 1
                self.up_c += 1
                self.uploader_busy -= 1
+                if not self.uploader_busy:
+                    self.at_up += time.time() - self.at_upr

    def up_done(self, file):
        if self.ar.dl:
@@ -1146,10 +1297,11 @@ source file/folder selection uses rsync syntax, meaning that:
    ap.add_argument("-v", action="store_true", help="verbose")
    ap.add_argument("-a", metavar="PASSWD", help="password or $filepath")
    ap.add_argument("-s", action="store_true", help="file-search (disables upload)")
-    ap.add_argument("-x", type=unicode, metavar="REGEX", default="", help="skip file if filesystem-abspath matches REGEX, example: '.*/\\.hist/.*'")
+    ap.add_argument("-x", type=unicode, metavar="REGEX", action="append", help="skip file if filesystem-abspath matches REGEX (option can be repeated), example: '.*/\\.hist/.*'")
    ap.add_argument("--ok", action="store_true", help="continue even if some local files are inaccessible")
    ap.add_argument("--touch", action="store_true", help="if last-modified timestamps differ, push local to server (need write+delete perms)")
    ap.add_argument("--ow", action="store_true", help="overwrite existing files instead of autorenaming")
+    ap.add_argument("--spd", action="store_true", help="print speeds for each file")
    ap.add_argument("--version", action="store_true", help="show version and exit")

    ap = app.add_argument_group("compatibility")
@@ -1161,9 +1313,14 @@ source file/folder selection uses rsync syntax, meaning that:
    ap.add_argument("--dr", action="store_true", help="delete remote files which don't exist locally (implies --ow)")
    ap.add_argument("--drd", action="store_true", help="delete remote files during upload instead of afterwards; reduces peak disk space usage, but will reupload instead of detecting renames")

+    ap = app.add_argument_group("file-ID calculator; enable with url '-' to list warks (file identifiers) instead of upload/search")
+    ap.add_argument("--wsalt", type=unicode, metavar="S", default="hunter2", help="salt to use when creating warks; must match server config")
+    ap.add_argument("--jw", action="store_true", help="just identifier+filepath, not mtime/size too")
+
    ap = app.add_argument_group("performance tweaks")
    ap.add_argument("-j", type=int, metavar="CONNS", default=2, help="parallel connections")
    ap.add_argument("-J", type=int, metavar="CORES", default=hcores, help="num cpu-cores to use for hashing; set 0 or 1 for single-core hashing")
+    ap.add_argument("--sz", type=int, metavar="MiB", default=64, help="try to make each POST this big")
    ap.add_argument("-nh", action="store_true", help="disable hashing while uploading")
    ap.add_argument("-ns", action="store_true", help="no status panel (for slow consoles and macos)")
    ap.add_argument("--cd", type=float, metavar="SEC", default=5, help="delay before reattempting a failed handshake/upload")
@@ -1191,7 +1348,11 @@ source file/folder selection uses rsync syntax, meaning that:
    if ar.dr:
        ar.ow = True

-    for k in "dl dr drd".split():
+    ar.x = "|".join(ar.x or [])
+
+    setattr(ar, "wlist", ar.url == "-")
+
+    for k in "dl dr drd wlist".split():
        errs = []
        if ar.safe and getattr(ar, k):
            errs.append(k)
@@ -1208,7 +1369,7 @@ source file/folder selection uses rsync syntax, meaning that:
    ar.url = ar.url.rstrip("/") + "/"
    if "://" not in ar.url:
        ar.url = "http://" + ar.url
-    
+
    if "https://" in ar.url.lower():
        try:
            import ssl, zipfile
--- a/contrib/README.md
+++ b/contrib/README.md
@@ -19,6 +19,9 @@
 * the `act:bput` thing is optional since copyparty v1.9.29
 * using an older sharex version, maybe sharex v12.1.1 for example? dw fam i got your back 👉😎👉 [`sharex12.sxcu`](sharex12.sxcu)

+### [`flameshot.sh`](flameshot.sh)
+* takes a screenshot with [flameshot](https://flameshot.org/) on Linux, uploads it, and writes the URL to clipboard
+
 ### [`send-to-cpp.contextlet.json`](send-to-cpp.contextlet.json)
 * browser integration, kind of? custom rightclick actions and stuff
 * rightclick a pic and send it to copyparty straight from your browser
--- a/contrib/flameshot.sh
+++ b/contrib/flameshot.sh
@@ -0,0 +1,14 @@
+#!/bin/bash
+set -e
+
+# take a screenshot with flameshot and send it to copyparty;
+# the image url will be placed on your clipboard
+
+password=wark
+url=https://a.ocv.me/up/
+filename=$(date +%Y-%m%d-%H%M%S).png
+
+flameshot gui -s -r |
+curl -T- $url$filename?pw=$password |
+tail -n 1 |
+xsel -ib
--- a/contrib/nginx/copyparty.conf
+++ b/contrib/nginx/copyparty.conf
@@ -1,14 +1,10 @@
-# when running copyparty behind a reverse proxy,
-# the following arguments are recommended:
-#
-#   -i 127.0.0.1    only accept connections from nginx
-#
-# -nc must match or exceed the webserver's max number of concurrent clients;
-# copyparty default is 1024 if OS permits it (see "max clients:" on startup),
+# look for "max clients:" when starting copyparty, as nginx should
+# not accept more consecutive clients than what copyparty is able to;
 # nginx default is 512  (worker_processes 1, worker_connections 512)
 #
-# you may also consider adding -j0 for CPU-intensive configurations
-# (5'000 requests per second, or 20gbps upload/download in parallel)
+# rarely, in some extreme usecases, it can be good to add -j0
+# (40'000 requests per second, or 20gbps upload/download in parallel)
+# but this is usually counterproductive and slightly buggy
 #
 # on fedora/rhel, remember to setsebool -P httpd_can_network_connect 1
 #
@@ -20,10 +16,33 @@
 #
 # and then enable it below by uncomenting the cloudflare-only.conf line

-upstream cpp {
+
+upstream cpp_tcp {
+	# alternative 1: connect to copyparty using tcp;
+	# cpp_uds is slightly faster and more secure, but
+	# cpp_tcp is easier to setup and "just works"
+	# ...you should however restrict copyparty to only
+	# accept connections from nginx by adding these args:
+	# -i 127.0.0.1
+
 	server 127.0.0.1:3923 fail_timeout=1s;
 	keepalive 1;
 }
+
+
+upstream cpp_uds {
+	# alternative 2: unix-socket, aka. "unix domain socket";
+	# 5-10% faster, and better isolation from other software,
+	# but there must be at least one unix-group which both
+	# nginx and copyparty is a member of; if that group is
+	# "www" then run copyparty with the following args:
+	# -i unix:770:www:/tmp/party.sock
+
+	server unix:/tmp/party.sock fail_timeout=1s;
+	keepalive 1;
+}
+
+
 server {
 	listen 443 ssl;
 	listen [::]:443 ssl;
@@ -34,7 +53,8 @@ server {
 	#include /etc/nginx/cloudflare-only.conf;

 	location / {
-		proxy_pass http://cpp;
+		# recommendation: replace cpp_tcp with cpp_uds below
+		proxy_pass http://cpp_tcp;
 		proxy_redirect off;
 		# disable buffering (next 4 lines)
 		proxy_http_version 1.1;
@@ -52,6 +72,7 @@ server {
 	}
 }

+
 # default client_max_body_size (1M) blocks uploads larger than 256 MiB
 client_max_body_size 1024M;
 client_header_timeout 610m;
--- a/contrib/package/arch/PKGBUILD
+++ b/contrib/package/arch/PKGBUILD
@@ -1,6 +1,6 @@
 # Maintainer: icxes <dev.null@need.moe>
 pkgname=copyparty
-pkgver="1.13.3"
+pkgver="1.15.2"
 pkgrel=1
 pkgdesc="File server with accelerated resumable uploads, dedup, WebDAV, FTP, TFTP, zeroconf, media indexer, thumbnails++"
 arch=("any")
@@ -21,7 +21,7 @@ optdepends=("ffmpeg: thumbnails for videos, images (slower) and audio, music tag
 )
 source=("https://github.com/9001/${pkgname}/releases/download/v${pkgver}/${pkgname}-${pkgver}.tar.gz")
 backup=("etc/${pkgname}.d/init" )
-sha256sums=("35845d6335fba4a13d153d7062f365dad529202bc865b93267d899e19a0a6da3")
+sha256sums=("b6544d432bb9128f2a44174fab655d3a09accfe62f8ef516a6f06cd3d20043b3")

 build() {
    cd "${srcdir}/${pkgname}-${pkgver}"
--- a/contrib/package/nix/copyparty/pin.json
+++ b/contrib/package/nix/copyparty/pin.json
@@ -1,5 +1,5 @@
 {
-    "url": "https://github.com/9001/copyparty/releases/download/v1.13.3/copyparty-sfx.py",
-    "version": "1.13.3",
-    "hash": "sha256-LtbdioAYtWGC4+5frzUjXwm0thubkyMhc86YU/rXIuo="
+    "url": "https://github.com/9001/copyparty/releases/download/v1.15.2/copyparty-sfx.py",
+    "version": "1.15.2",
+    "hash": "sha256-YY7hdova7VzhxEoUD3DvNR1M69SGFjiaF8GkL8oDXK4="
 }
--- a/contrib/plugins/README.md
+++ b/contrib/plugins/README.md
@@ -20,6 +20,13 @@ point `--js-browser` to one of these by URL:



+## example any-js
+point `--js-browser` and/or `--js-other` to one of these by URL:
+
+* [`banner.js`](banner.js) shows a very enterprise [legal-banner](https://github.com/user-attachments/assets/8ae8e087-b209-449c-b08d-74e040f0284b)
+
+
+
 ## example browser-css
 point `--css-browser` to one of these by URL:

--- a/contrib/plugins/banner.js
+++ b/contrib/plugins/banner.js
@@ -0,0 +1,93 @@
+(function() {
+
+// usage: copy this to '.banner.js' in your webroot,
+// and run copyparty with the following arguments:
+// --js-browser /.banner.js  --js-other /.banner.js
+
+
+
+// had to pick the most chuuni one as the default
+var bannertext = '' +
+'<h3>You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only.</h3>' +
+'<p>By using this IS (which includes any device attached to this IS), you consent to the following conditions:</p>' +
+'<ul>' +
+'<li>The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations.</li>' +
+'<li>At any time, the USG may inspect and seize data stored on this IS.</li>' +
+'<li>Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose.</li>' +
+'<li>This IS includes security measures (e.g., authentication and access controls) to protect USG interests -- not for your personal benefit or privacy.</li>' +
+'<li>Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details.</li>' +
+'</ul>';
+
+
+
+// fancy div to insert into pages
+function bannerdiv(border) {
+    var ret = mknod('div', null, bannertext);
+    if (border)
+        ret.setAttribute("style", "border:1em solid var(--fg); border-width:.3em 0; margin:3em 0");
+    return ret;
+}
+
+
+
+// keep all of these false and then selectively enable them in the if-blocks below
+var show_msgbox = false,
+    login_top = false,
+    top = false,
+    bottom = false,
+    top_bordered = false,
+    bottom_bordered = false;
+
+if (QS("h1#cc") && QS("a#k")) {
+    // this is the controlpanel
+    // (you probably want to keep just one of these enabled)
+    show_msgbox = true;
+    login_top = true;
+    bottom = true;
+}
+else if (ebi("swin") && ebi("smac")) {
+    // this is the connect-page, same deal here
+    show_msgbox = true;
+    top_bordered = true;
+    bottom_bordered = true;
+}
+else if (ebi("op_cfg") || ebi("div#mw") ) {
+    // we're running in the main filebrowser (op_cfg) or markdown-viewer/editor (div#mw),
+    // fragile pages which break if you do something too fancy
+    show_msgbox = true;
+}
+
+
+
+// shows a fullscreen messagebox; works on all pages
+if (show_msgbox) {
+    var now = Math.floor(Date.now() / 1000),
+        last_shown = sread("bannerts") || 0;
+
+    // 60 * 60 * 17 = 17 hour cooldown
+    if (now - last_shown > 60 * 60 * 17) {
+        swrite("bannerts", now);
+        modal.confirm(bannertext, null, function () {
+            location = 'https://this-page-intentionally-left-blank.org/';
+        });
+    }
+}
+
+// show a message on the page footer; only works on the connect-page
+if (top || top_bordered) {
+    var dst = ebi('wrap');
+    dst.insertBefore(bannerdiv(top_bordered), dst.firstChild);
+}
+
+// show a message on the page footer; only works on the controlpanel and connect-page
+if (bottom || bottom_bordered) {
+    ebi('wrap').appendChild(bannerdiv(bottom_bordered));
+}
+
+// show a message on the top of the page; only works on the controlpanel
+if (login_top) {
+    var dst = QS('h1');
+    dst.parentNode.insertBefore(bannerdiv(false), dst);
+}
+
+})();
--- a/contrib/themes/bsod.css
+++ b/contrib/themes/bsod.css
@@ -0,0 +1,116 @@
+/* copy bsod.* into a folder named ".themes" in your webroot and then
+     --themes=10 --theme=9 --css-browser=/.themes/bsod.css
+*/
+
+html.ey {
+    --w2: #3d7bbc;
+    --w3: #5fcbec;
+
+    --fg: #fff;
+    --fg-max: #fff;
+    --fg-weak: var(--w3);
+
+    --bg: #2067b2;
+    --bg-d3: var(--bg);
+    --bg-d2: var(--w2);
+    --bg-d1: var(--fg-weak);
+    --bg-u2: var(--bg);
+    --bg-u3: var(--bg);
+    --bg-u5: var(--w2);
+
+    --tab-alt: var(--fg-weak);
+	--row-alt: var(--w2);
+
+    --scroll: var(--w3);
+
+    --a: #fff;
+    --a-b: #fff;
+    --a-hil: #fff;
+    --a-h-bg: var(--fg-weak);
+    --a-dark: var(--a);
+    --a-gray: var(--fg-weak);
+
+	--btn-fg: var(--a);
+	--btn-bg: var(--w2);
+    --btn-h-fg: var(--w2);
+	--btn-1-fg: var(--bg);
+	--btn-1-bg: var(--a);
+    --txt-sh: a;
+    --txt-bg: var(--w2);
+
+	--u2-b1-bg: var(--w2);
+	--u2-b2-bg: var(--w2);
+    --u2-txt-bg: var(--w2);
+	--u2-tab-bg: a;
+	--u2-tab-1-bg: var(--w2);
+
+    --sort-1: var(--a);
+    --sort-1: var(--fg-weak);
+
+    --tree-bg: var(--bg);
+
+	--g-b1: a;
+	--g-b2: a;
+    --g-f-bg: var(--w2);
+
+    --f-sh1: 0.1;
+    --f-sh2: 0.02;
+    --f-sh3: 0.1;
+    --f-h-b1: a;
+
+    --srv-1: var(--a);
+    --srv-3: var(--a);
+
+    --mp-sh: a;
+}
+
+html.ey {
+    background: url('bsod.png') top 5em right 4.5em no-repeat fixed var(--bg);
+}
+html.ey body#b {
+    background: var(--bg);  /*sandbox*/
+}
+html.ey #ops {
+    margin: 1.7em 1.5em 0 1.5em;
+	border-radius: .3em;
+	border-width: 1px 0;
+}
+html.ey #ops a {
+    text-shadow: 1px 1px 0 rgba(0,0,0,0.5);
+}
+html.ey .opbox {
+	margin: 1.5em 0 0 0;
+}
+html.ey #tree {
+    box-shadow: none;
+}
+html.ey #tt {
+    border-color: var(--w2);
+    background: var(--w2);
+}
+html.ey .mdo a {
+    background: none;
+    text-decoration: underline;
+}
+html.ey .mdo pre,
+html.ey .mdo code {
+    color: #fff;
+    background: var(--w2);
+    border: none;
+}
+html.ey .mdo h1,
+html.ey .mdo h2 {
+    background: none;
+    border-color: var(--w2);
+}
+html.ey .mdo ul ul,
+html.ey .mdo ul ol,
+html.ey .mdo ol ul,
+html.ey .mdo ol ol {
+	border-color: var(--w2);
+}
+html.ey .mdo p>em,
+html.ey .mdo li>em,
+html.ey .mdo td>em {
+	color: #fd0;
+}
--- a/contrib/themes/bsod.png
+++ b/contrib/themes/bsod.png
--- a/copyparty/init.py
+++ b/copyparty/init.py
@@ -19,6 +19,7 @@ if True:
    from typing import Any, Callable

 PY2 = sys.version_info < (3,)
+PY36 = sys.version_info > (3, 6)
 if not PY2:
    unicode: Callable[[Any], str] = str
 else:
--- a/copyparty/main.py
+++ b/copyparty/main.py
@@ -27,6 +27,7 @@ from .__init__ import (
    EXE,
    MACOS,
    PY2,
+    PY36,
    VT100,
    WINDOWS,
    E,
@@ -54,6 +55,7 @@ from .util import (
    Daemon,
    align_tab,
    ansi_re,
+    b64enc,
    dedent,
    min_ex,
    pybin,
@@ -67,7 +69,13 @@ if True:  # pylint: disable=using-constant-test

    from typing import Any, Optional

+if PY2:
+    range = xrange  # type: ignore
+
 try:
+    if os.environ.get("PRTY_NO_TLS"):
+        raise Exception()
+
    HAVE_SSL = True
    import ssl
 except:
@@ -198,7 +206,7 @@ def init_E(EE: EnvParams) -> None:
                        errs.append("Using [%s] instead" % (p,))

                    if errs:
-                        print("WARNING: " + ". ".join(errs))
+                        warn(". ".join(errs))

                    return p  # type: ignore
                except Exception as ex:
@@ -228,7 +236,7 @@ def init_E(EE: EnvParams) -> None:
            raise


-def get_srvname() -> str:
+def get_srvname(verbose) -> str:
    try:
        ret: str = unicode(socket.gethostname()).split(".")[0]
    except:
@@ -238,7 +246,8 @@ def get_srvname() -> str:
        return ret

    fp = os.path.join(E.cfg, "name.txt")
-    lprint("using hostname from {}\n".format(fp))
+    if verbose:
+        lprint("using hostname from {}\n".format(fp))
    try:
        with open(fp, "rb") as f:
            ret = f.read().decode("utf-8", "replace").strip()
@@ -260,7 +269,7 @@ def get_fk_salt() -> str:
        with open(fp, "rb") as f:
            ret = f.read().strip()
    except:
-        ret = base64.b64encode(os.urandom(18))
+        ret = b64enc(os.urandom(18))
        with open(fp, "wb") as f:
            f.write(ret + b"\n")

@@ -273,7 +282,7 @@ def get_dk_salt() -> str:
        with open(fp, "rb") as f:
            ret = f.read().strip()
    except:
-        ret = base64.b64encode(os.urandom(30))
+        ret = b64enc(os.urandom(30))
        with open(fp, "wb") as f:
            f.write(ret + b"\n")

@@ -286,7 +295,7 @@ def get_ah_salt() -> str:
        with open(fp, "rb") as f:
            ret = f.read().strip()
    except:
-        ret = base64.b64encode(os.urandom(18))
+        ret = b64enc(os.urandom(18))
        with open(fp, "wb") as f:
            f.write(ret + b"\n")

@@ -344,7 +353,7 @@ def configure_ssl_ver(al: argparse.Namespace) -> None:
    # oh man i love openssl
    # check this out
    # hold my beer
-    assert ssl
+    assert ssl  # type: ignore  # !rm
    ptn = re.compile(r"^OP_NO_(TLS|SSL)v")
    sslver = terse_sslver(al.ssl_ver).split(",")
    flags = [k for k in ssl.__dict__ if ptn.match(k)]
@@ -378,7 +387,7 @@ def configure_ssl_ver(al: argparse.Namespace) -> None:


 def configure_ssl_ciphers(al: argparse.Namespace) -> None:
-    assert ssl
+    assert ssl  # type: ignore  # !rm
    ctx = ssl.create_default_context(ssl.Purpose.CLIENT_AUTH)
    if al.ssl_ver:
        ctx.options &= ~al.ssl_flags_en
@@ -491,11 +500,20 @@ def disable_quickedit() -> None:


 def sfx_tpoke(top: str):
-    files = [os.path.join(dp, p) for dp, dd, df in os.walk(top) for p in dd + df]
+    if os.environ.get("PRTY_NO_TPOKE"):
+        return
+
+    files = [top] + [
+        os.path.join(dp, p) for dp, dd, df in os.walk(top) for p in dd + df
+    ]
    while True:
        t = int(time.time())
-        for f in [top] + files:
-            os.utime(f, (t, t))
+        for f in list(files):
+            try:
+                os.utime(f, (t, t))
+            except Exception as ex:
+                lprint("<TPOKE> [%s] %r" % (f, ex))
+                files.remove(f)

        time.sleep(78123)

@@ -512,6 +530,41 @@ def showlic() -> None:

 def get_sects():
    return [
+        [
+            "bind",
+            "configure listening",
+            dedent(
+                """
+            \033[33m-i\033[0m takes a comma-separated list of interfaces to listen on;
+            IP-addresses and/or unix-sockets (Unix Domain Sockets)
+
+            the default (\033[32m-i ::\033[0m) means all IPv4 and IPv6 addresses
+
+            \033[32m-i 0.0.0.0\033[0m    listens on all IPv4 NICs/subnets
+            \033[32m-i 127.0.0.1\033[0m  listens on IPv4 localhost only
+            \033[32m-i 127.1\033[0m      listens on IPv4 localhost only
+            \033[32m-i 127.1,192.168.123.1\033[0m = IPv4 localhost and 192.168.123.1
+
+            \033[33m-p\033[0m takes a comma-separated list of tcp ports to listen on;
+            the default is \033[32m-p 3923\033[0m but as root you can \033[32m-p 80,443,3923\033[0m
+
+            when running behind a reverse-proxy, it's recommended to
+            use unix-sockets for improved performance and security;
+
+            \033[32m-i unix:770:www:\033[33m/tmp/a.sock\033[0m listens on \033[33m/tmp/a.sock\033[0m with
+            permissions \033[33m0770\033[0m; only accessible to members of the \033[33mwww\033[0m
+            group. This is the best approach. Alternatively,
+
+            \033[32m-i unix:777:\033[33m/tmp/a.sock\033[0m sets perms \033[33m0777\033[0m so anyone can
+            access it; bad unless it's inside a restricted folder
+
+            \033[32m-i unix:\033[33m/tmp/a.sock\033[0m keeps umask-defined permissions
+            (usually \033[33m0600\033[0m) and the same user/group as copyparty
+
+            \033[33m-p\033[0m (tcp ports) is ignored for unix sockets
+            """
+            ),
+        ],
        [
            "accounts",
            "accounts and volumes",
@@ -689,6 +742,11 @@ def get_sects():
            \033[36mxban\033[0m can be used to overrule / cancel a user ban event;
            if the program returns 0 (true/OK) then the ban will NOT happen

+            effects can be used to redirect uploads into other
+            locations, and to delete or index other files based
+            on new uploads, but with certain limitations. See
+            bin/hooks/reloc* and docs/devnotes.md#hook-effects
+
            except for \033[36mxm\033[0m, only one hook / one action can run at a time,
            so it's recommended to use the \033[36mf\033[0m flag unless you really need
            to wait for the hook to finish before continuing (without \033[36mf\033[0m
@@ -917,6 +975,16 @@ def add_fs(ap):
    ap2.add_argument("--mtab-age", metavar="SEC", type=int, default=60, help="rebuild mountpoint cache every \033[33mSEC\033[0m to keep track of sparse-files support; keep low on servers with removable media")


+def add_share(ap):
+    db_path = os.path.join(E.cfg, "shares.db")
+    ap2 = ap.add_argument_group('share-url options')
+    ap2.add_argument("--shr", metavar="DIR", type=u, default="", help="toplevel virtual folder for shared files/folders, for example [\033[32m/share\033[0m]")
+    ap2.add_argument("--shr-db", metavar="FILE", type=u, default=db_path, help="database to store shares in")
+    ap2.add_argument("--shr-adm", metavar="U,U", type=u, default="", help="comma-separated list of users allowed to view/delete any share")
+    ap2.add_argument("--shr-rt", metavar="MIN", type=int, default=1440, help="shares can be revived by their owner if they expired less than MIN minutes ago; [\033[32m60\033[0m]=hour, [\033[32m1440\033[0m]=day, [\033[32m10080\033[0m]=week")
+    ap2.add_argument("--shr-v", action="store_true", help="debug")
+
+
 def add_upload(ap):
    ap2 = ap.add_argument_group('upload options')
    ap2.add_argument("--dotpart", action="store_true", help="dotfile incomplete uploads, hiding them from clients unless \033[33m-ed\033[0m")
@@ -927,9 +995,10 @@ def add_upload(ap):
    ap2.add_argument("--reg-cap", metavar="N", type=int, default=38400, help="max number of uploads to keep in memory when running without \033[33m-e2d\033[0m; roughly 1 MiB RAM per 600")
    ap2.add_argument("--no-fpool", action="store_true", help="disable file-handle pooling -- instead, repeatedly close and reopen files during upload (bad idea to enable this on windows and/or cow filesystems)")
    ap2.add_argument("--use-fpool", action="store_true", help="force file-handle pooling, even when it might be dangerous (multiprocessing, filesystems lacking sparse-files support, ...)")
-    ap2.add_argument("--hardlink", action="store_true", help="prefer hardlinks instead of symlinks when possible (within same filesystem) (volflag=hardlink)")
-    ap2.add_argument("--never-symlink", action="store_true", help="do not fallback to symlinks when a hardlink cannot be made (volflag=neversymlink)")
-    ap2.add_argument("--no-dedup", action="store_true", help="disable symlink/hardlink creation; copy file contents instead (volflag=copydupes)")
+    ap2.add_argument("--dedup", action="store_true", help="enable symlink-based upload deduplication (volflag=dedup)")
+    ap2.add_argument("--safe-dedup", metavar="N", type=int, default=50, help="how careful to be when deduplicating files; [\033[32m1\033[0m] = just verify the filesize, [\033[32m50\033[0m] = verify file contents have not been altered (volflag=safededup)")
+    ap2.add_argument("--hardlink", action="store_true", help="enable hardlink-based dedup; will fallback on symlinks when that is impossible (across filesystems) (volflag=hardlink)")
+    ap2.add_argument("--hardlink-only", action="store_true", help="do not fallback to symlinks when a hardlink cannot be made (volflag=hardlinkonly)")
    ap2.add_argument("--no-dupe", action="store_true", help="reject duplicate files during upload; only matches within the same volume (volflag=nodupe)")
    ap2.add_argument("--no-snap", action="store_true", help="disable snapshots -- forget unfinished uploads on shutdown; don't create .hist/up2k.snap files -- abandoned/interrupted uploads must be cleaned up manually")
    ap2.add_argument("--snap-wri", metavar="SEC", type=int, default=300, help="write upload state to ./hist/up2k.snap every \033[33mSEC\033[0m seconds; allows resuming incomplete uploads after a server crash")
@@ -942,14 +1011,15 @@ def add_upload(ap):
    ap2.add_argument("--sparse", metavar="MiB", type=int, default=4, help="windows-only: minimum size of incoming uploads through up2k before they are made into sparse files")
    ap2.add_argument("--turbo", metavar="LVL", type=int, default=0, help="configure turbo-mode in up2k client; [\033[32m-1\033[0m] = forbidden/always-off, [\033[32m0\033[0m] = default-off and warn if enabled, [\033[32m1\033[0m] = default-off, [\033[32m2\033[0m] = on, [\033[32m3\033[0m] = on and disable datecheck")
    ap2.add_argument("--u2j", metavar="JOBS", type=int, default=2, help="web-client: number of file chunks to upload in parallel; 1 or 2 is good for low-latency (same-country) connections, 4-8 for android clients, 16 for cross-atlantic (max=64)")
+    ap2.add_argument("--u2sz", metavar="N,N,N", type=u, default="1,64,96", help="web-client: default upload chunksize (MiB); sets \033[33mmin,default,max\033[0m in the settings gui. Each HTTP POST will aim for this size. Cloudflare max is 96. Big values are good for cross-atlantic but may increase HDD fragmentation on some FS. Disable this optimization with [\033[32m1,1,1\033[0m]")
    ap2.add_argument("--u2sort", metavar="TXT", type=u, default="s", help="upload order; [\033[32ms\033[0m]=smallest-first, [\033[32mn\033[0m]=alphabetical, [\033[32mfs\033[0m]=force-s, [\033[32mfn\033[0m]=force-n -- alphabetical is a bit slower on fiber/LAN but makes it easier to eyeball if everything went fine")
    ap2.add_argument("--write-uplog", action="store_true", help="write POST reports to textfiles in working-directory")


 def add_network(ap):
    ap2 = ap.add_argument_group('network options')
-    ap2.add_argument("-i", metavar="IP", type=u, default="::", help="ip to bind (comma-sep.), default: all IPv4 and IPv6")
-    ap2.add_argument("-p", metavar="PORT", type=u, default="3923", help="ports to bind (comma/range)")
+    ap2.add_argument("-i", metavar="IP", type=u, default="::", help="IPs and/or unix-sockets to listen on (see \033[33m--help-bind\033[0m). Default: all IPv4 and IPv6")
+    ap2.add_argument("-p", metavar="PORT", type=u, default="3923", help="ports to listen on (comma/range); ignored for unix-sockets")
    ap2.add_argument("--ll", action="store_true", help="include link-local IPv4/IPv6 in mDNS replies, even if the NIC has routable IPs (breaks some mDNS clients)")
    ap2.add_argument("--rproxy", metavar="DEPTH", type=int, default=1, help="which ip to associate clients with; [\033[32m0\033[0m]=tcp, [\033[32m1\033[0m]=origin (first x-fwd, unsafe), [\033[32m2\033[0m]=outermost-proxy, [\033[32m3\033[0m]=second-proxy, [\033[32m-1\033[0m]=closest-proxy")
    ap2.add_argument("--xff-hdr", metavar="NAME", type=u, default="x-forwarded-for", help="if reverse-proxied, which http header to read the client's real ip from")
@@ -1000,6 +1070,7 @@ def add_cert(ap, cert_path):


 def add_auth(ap):
+    ses_db = os.path.join(E.cfg, "sessions.db")
    ap2 = ap.add_argument_group('IdP / identity provider / user authentication options')
    ap2.add_argument("--idp-h-usr", metavar="HN", type=u, default="", help="bypass the copyparty authentication checks and assume the request-header \033[33mHN\033[0m contains the username of the requesting user (for use with authentik/oauth/...)\n\033[1;31mWARNING:\033[0m if you enable this, make sure clients are unable to specify this header themselves; must be washed away and replaced by a reverse-proxy")
    ap2.add_argument("--idp-h-grp", metavar="HN", type=u, default="", help="assume the request-header \033[33mHN\033[0m contains the groupname of the requesting user; can be referenced in config files for group-based access control")
@@ -1007,6 +1078,19 @@ def add_auth(ap):
    ap2.add_argument("--idp-gsep", metavar="RE", type=u, default="|:;+,", help="if there are multiple groups in \033[33m--idp-h-grp\033[0m, they are separated by one of the characters in \033[33mRE\033[0m")
    ap2.add_argument("--no-bauth", action="store_true", help="disable basic-authentication support; do not accept passwords from the 'Authenticate' header at all. NOTE: This breaks support for the android app")
    ap2.add_argument("--bauth-last", action="store_true", help="keeps basic-authentication enabled, but only as a last-resort; if a cookie is also provided then the cookie wins")
+    ap2.add_argument("--ses-db", metavar="PATH", type=u, default=ses_db, help="where to store the sessions database (if you run multiple copyparty instances, make sure they use different DBs)")
+    ap2.add_argument("--ses-len", metavar="CHARS", type=int, default=20, help="session key length; default is 120 bits ((20//4)*4*6)")
+    ap2.add_argument("--no-ses", action="store_true", help="disable sessions; use plaintext passwords in cookies")
+
+
+def add_chpw(ap):
+    db_path = os.path.join(E.cfg, "chpw.json")
+    ap2 = ap.add_argument_group('user-changeable passwords options')
+    ap2.add_argument("--chpw", action="store_true", help="allow users to change their own passwords")
+    ap2.add_argument("--chpw-no", metavar="U,U,U", type=u, action="append", help="do not allow password-changes for this comma-separated list of usernames")
+    ap2.add_argument("--chpw-db", metavar="PATH", type=u, default=db_path, help="where to store the passwords database (if you run multiple copyparty instances, make sure they use different DBs)")
+    ap2.add_argument("--chpw-len", metavar="N", type=int, default=8, help="minimum password length")
+    ap2.add_argument("--chpw-v", metavar="LVL", type=int, default=2, help="verbosity of summary on config load [\033[32m0\033[0m] = nothing at all, [\033[32m1\033[0m] = number of users, [\033[32m2\033[0m] = list users with default-pw, [\033[32m3\033[0m] = list all users")


 def add_zeroconf(ap):
@@ -1116,6 +1200,7 @@ def add_hooks(ap):
    ap2.add_argument("--xad", metavar="CMD", type=u, action="append", help="execute \033[33mCMD\033[0m after  a file delete")
    ap2.add_argument("--xm", metavar="CMD", type=u, action="append", help="execute \033[33mCMD\033[0m on message")
    ap2.add_argument("--xban", metavar="CMD", type=u, action="append", help="execute \033[33mCMD\033[0m if someone gets banned (pw/404/403/url)")
+    ap2.add_argument("--hook-v", action="store_true", help="verbose hooks")


 def add_stats(ap):
@@ -1148,6 +1233,7 @@ def add_optouts(ap):
    ap2.add_argument("--no-zip", action="store_true", help="disable download as zip/tar")
    ap2.add_argument("--no-tarcmp", action="store_true", help="disable download as compressed tar (?tar=gz, ?tar=bz2, ?tar=xz, ?tar=gz:9, ...)")
    ap2.add_argument("--no-lifetime", action="store_true", help="do not allow clients (or server config) to schedule an upload to be deleted after a given time")
+    ap2.add_argument("--no-up-list", action="store_true", help="don't show list of incoming files in controlpanel")
    ap2.add_argument("--no-pipe", action="store_true", help="disable race-the-beam (lockstep download of files which are currently being uploaded) (volflag=nopipe)")
    ap2.add_argument("--no-db-ip", action="store_true", help="do not write uploader IPs into the database")

@@ -1208,6 +1294,7 @@ def add_logging(ap):
    ap2.add_argument("--ansi", action="store_true", help="force colors; overrides environment-variable NO_COLOR")
    ap2.add_argument("--no-logflush", action="store_true", help="don't flush the logfile after each write; tiny bit faster")
    ap2.add_argument("--no-voldump", action="store_true", help="do not list volumes and permissions on startup")
+    ap2.add_argument("--log-utc", action="store_true", help="do not use local timezone; assume the TZ env-var is UTC (tiny bit faster)")
    ap2.add_argument("--log-tdec", metavar="N", type=int, default=3, help="timestamp resolution / number of timestamp decimals")
    ap2.add_argument("--log-badpwd", metavar="N", type=int, default=1, help="log failed login attempt passwords: 0=terse, 1=plaintext, 2=hashed")
    ap2.add_argument("--log-conn", action="store_true", help="debug: print tcp-server msgs")
@@ -1266,7 +1353,7 @@ def add_transcoding(ap):
 def add_db_general(ap, hcores):
    noidx = APPLESAN_TXT if MACOS else ""
    ap2 = ap.add_argument_group('general db options')
-    ap2.add_argument("-e2d", action="store_true", help="enable up2k database, making files searchable + enables upload deduplication")
+    ap2.add_argument("-e2d", action="store_true", help="enable up2k database; this enables file search, upload-undo, improves deduplication")
    ap2.add_argument("-e2ds", action="store_true", help="scan writable folders for new files on startup; sets \033[33m-e2d\033[0m")
    ap2.add_argument("-e2dsa", action="store_true", help="scans all folders on startup; sets \033[33m-e2ds\033[0m")
    ap2.add_argument("-e2v", action="store_true", help="verify file integrity; rehash all files and compare with db")
@@ -1275,11 +1362,13 @@ def add_db_general(ap, hcores):
    ap2.add_argument("--hist", metavar="PATH", type=u, default="", help="where to store volume data (db, thumbs); default is a folder named \".hist\" inside each volume (volflag=hist)")
    ap2.add_argument("--no-hash", metavar="PTN", type=u, default="", help="regex: disable hashing of matching absolute-filesystem-paths during e2ds folder scans (volflag=nohash)")
    ap2.add_argument("--no-idx", metavar="PTN", type=u, default=noidx, help="regex: disable indexing of matching absolute-filesystem-paths during e2ds folder scans (volflag=noidx)")
+    ap2.add_argument("--no-dirsz", action="store_true", help="do not show total recursive size of folders in listings, show inode size instead; slightly faster (volflag=nodirsz)")
+    ap2.add_argument("--re-dirsz", action="store_true", help="if the directory-sizes in the UI are bonkers, use this along with \033[33m-e2dsa\033[0m to rebuild the index from scratch")
    ap2.add_argument("--no-dhash", action="store_true", help="disable rescan acceleration; do full database integrity check -- makes the db ~5%% smaller and bootup/rescans 3~10x slower")
    ap2.add_argument("--re-dhash", action="store_true", help="force a cache rebuild on startup; enable this once if it gets out of sync (should never be necessary)")
    ap2.add_argument("--no-forget", action="store_true", help="never forget indexed files, even when deleted from disk -- makes it impossible to ever upload the same file twice -- only useful for offloading uploads to a cloud service or something (volflag=noforget)")
    ap2.add_argument("--dbd", metavar="PROFILE", default="wal", help="database durability profile; sets the tradeoff between robustness and speed, see \033[33m--help-dbd\033[0m (volflag=dbd)")
-    ap2.add_argument("--xlink", action="store_true", help="on upload: check all volumes for dupes, not just the target volume (volflag=xlink)")
+    ap2.add_argument("--xlink", action="store_true", help="on upload: check all volumes for dupes, not just the target volume (probably buggy, not recommended) (volflag=xlink)")
    ap2.add_argument("--hash-mt", metavar="CORES", type=int, default=hcores, help="num cpu cores to use for file hashing; set 0 or 1 for single-core hashing")
    ap2.add_argument("--re-maxage", metavar="SEC", type=int, default=0, help="rescan filesystem for changes every \033[33mSEC\033[0m seconds; 0=off (volflag=scan)")
    ap2.add_argument("--db-act", metavar="SEC", type=float, default=10.0, help="defer any scheduled volume reindexing until \033[33mSEC\033[0m seconds after last db write (uploads, renames, ...)")
@@ -1336,7 +1425,7 @@ def add_ui(ap, retry):
    ap2 = ap.add_argument_group('ui options')
    ap2.add_argument("--grid", action="store_true", help="show grid/thumbnails by default (volflag=grid)")
    ap2.add_argument("--gsel", action="store_true", help="select files in grid by ctrl-click (volflag=gsel)")
-    ap2.add_argument("--lang", metavar="LANG", type=u, default="eng", help="language; one of the following: \033[32meng nor\033[0m")
+    ap2.add_argument("--lang", metavar="LANG", type=u, default="eng", help="language; one of the following: \033[32meng nor chi\033[0m")
    ap2.add_argument("--theme", metavar="NUM", type=int, default=0, help="default theme to use (0..7)")
    ap2.add_argument("--themes", metavar="NUM", type=int, default=8, help="number of themes installed")
    ap2.add_argument("--au-vol", metavar="0-100", type=int, default=50, choices=range(0, 101), help="default audio/video volume percent")
@@ -1344,9 +1433,10 @@ def add_ui(ap, retry):
    ap2.add_argument("--unlist", metavar="REGEX", type=u, default="", help="don't show files matching \033[33mREGEX\033[0m in file list. Purely cosmetic! Does not affect API calls, just the browser. Example: [\033[32m\\.(js|css)$\033[0m] (volflag=unlist)")
    ap2.add_argument("--favico", metavar="TXT", type=u, default="c 000 none" if retry else "🎉 000 none", help="\033[33mfavicon-text\033[0m [ \033[33mforeground\033[0m [ \033[33mbackground\033[0m ] ], set blank to disable")
    ap2.add_argument("--mpmc", metavar="URL", type=u, default="", help="change the mediaplayer-toggle mouse cursor; URL to a folder with {2..5}.png inside (or disable with [\033[32m.\033[0m])")
-    ap2.add_argument("--js-browser", metavar="L", type=u, default="", help="URL to additional JS to include")
-    ap2.add_argument("--css-browser", metavar="L", type=u, default="", help="URL to additional CSS to include")
-    ap2.add_argument("--html-head", metavar="TXT", type=u, default="", help="text to append to the <head> of all HTML pages; can be @PATH to send the contents of a file at PATH, and/or begin with %% to render as jinja2 template (volflag=html_head)")
+    ap2.add_argument("--css-browser", metavar="L", type=u, default="", help="URL to additional CSS to include in the filebrowser html")
+    ap2.add_argument("--js-browser", metavar="L", type=u, default="", help="URL to additional JS to include in the filebrowser html")
+    ap2.add_argument("--js-other", metavar="L", type=u, default="", help="URL to additional JS to include in all other pages")
+    ap2.add_argument("--html-head", metavar="TXT", type=u, default="", help="text to append to the <head> of all HTML pages (except for basic-browser); can be @PATH to send the contents of a file at PATH, and/or begin with %% to render as jinja2 template (volflag=html_head)")
    ap2.add_argument("--ih", action="store_true", help="if a folder contains index.html, show that instead of the directory listing by default (can be changed in the client settings UI, or add ?v to URL for override)")
    ap2.add_argument("--textfiles", metavar="CSV", type=u, default="txt,nfo,diz,cue,readme", help="file extensions to present as plaintext")
    ap2.add_argument("--txt-max", metavar="KiB", type=int, default=64, help="max size of embedded textfiles on ?doc= (anything bigger will be lazy-loaded by JS)")
@@ -1365,12 +1455,14 @@ def add_debug(ap):
    ap2 = ap.add_argument_group('debug options')
    ap2.add_argument("--vc", action="store_true", help="verbose config file parser (explain config)")
    ap2.add_argument("--cgen", action="store_true", help="generate config file from current config (best-effort; probably buggy)")
+    ap2.add_argument("--deps", action="store_true", help="list information about detected optional dependencies")
    if hasattr(select, "poll"):
        ap2.add_argument("--no-poll", action="store_true", help="kernel-bug workaround: disable poll; use select instead (limits max num clients to ~700)")
    ap2.add_argument("--no-sendfile", action="store_true", help="kernel-bug workaround: disable sendfile; do a safe and slow read-send-loop instead")
    ap2.add_argument("--no-scandir", action="store_true", help="kernel-bug workaround: disable scandir; do a listdir + stat on each file instead")
    ap2.add_argument("--no-fastboot", action="store_true", help="wait for initial filesystem indexing before accepting client requests")
    ap2.add_argument("--no-htp", action="store_true", help="disable httpserver threadpool, create threads as-needed instead")
+    ap2.add_argument("--rm-sck", action="store_true", help="when listening on unix-sockets, do a basic delete+bind instead of the default atomic bind")
    ap2.add_argument("--srch-dbg", action="store_true", help="explain search processing, and do some extra expensive sanity checks")
    ap2.add_argument("--rclone-mdns", action="store_true", help="use mdns-domain instead of server-ip on /?hc")
    ap2.add_argument("--stackmon", metavar="P,S", type=u, default="", help="write stacktrace to \033[33mP\033[0math every \033[33mS\033[0m second, for example --stackmon=\033[32m./st/%%Y-%%m/%%d/%%H%%M.xz,60")
@@ -1385,10 +1477,11 @@ def add_debug(ap):


 def run_argparse(
-    argv: list[str], formatter: Any, retry: bool, nc: int
+    argv: list[str], formatter: Any, retry: bool, nc: int, verbose=True
 ) -> argparse.Namespace:
    ap = argparse.ArgumentParser(
        formatter_class=formatter,
+        usage=argparse.SUPPRESS,
        prog="copyparty",
        description="http file sharing hub v{} ({})".format(S_VERSION, S_BUILD_DT),
    )
@@ -1406,18 +1499,20 @@ def run_argparse(

    tty = os.environ.get("TERM", "").lower() == "linux"

-    srvname = get_srvname()
+    srvname = get_srvname(verbose)

    add_general(ap, nc, srvname)
    add_network(ap)
    add_tls(ap, cert_path)
    add_cert(ap, cert_path)
    add_auth(ap)
+    add_chpw(ap)
    add_qr(ap, tty)
    add_zeroconf(ap)
    add_zc_mdns(ap)
    add_zc_ssdp(ap)
    add_fs(ap)
+    add_share(ap)
    add_upload(ap)
    add_db_general(ap, hcores)
    add_db_metadata(ap)
@@ -1537,6 +1632,7 @@ def main(argv: Optional[list[str]] = None, rsrc: Optional[str] = None) -> None:
        ("--hdr-au-usr", "--idp-h-usr"),
        ("--idp-h-sep", "--idp-gsep"),
        ("--th-no-crop", "--th-crop=n"),
+        ("--never-symlink", "--hardlink-only"),
    ]
    for dk, nk in deprecated:
        idx = -1
@@ -1561,7 +1657,7 @@ def main(argv: Optional[list[str]] = None, rsrc: Optional[str] = None) -> None:
            argv.extend(["--qr"])
            if ANYWIN or not os.geteuid():
                # win10 allows symlinks if admin; can be unexpected
-                argv.extend(["-p80,443,3923", "--ign-ebind", "--no-dedup"])
+                argv.extend(["-p80,443,3923", "--ign-ebind"])
    except:
        pass

@@ -1583,7 +1679,7 @@ def main(argv: Optional[list[str]] = None, rsrc: Optional[str] = None) -> None:
    for fmtr in [RiceFormatter, RiceFormatter, Dodge11874, BasicDodge11874]:
        try:
            al = run_argparse(argv, fmtr, retry, nc)
-            dal = run_argparse([], fmtr, retry, nc)
+            dal = run_argparse([], fmtr, retry, nc, False)
            break
        except SystemExit:
            raise
@@ -1667,7 +1763,7 @@ def main(argv: Optional[list[str]] = None, rsrc: Optional[str] = None) -> None:
        print("error: python2 cannot --smb")
        return

-    if sys.version_info < (3, 6):
+    if not PY36:
        al.no_scandir = True

    if not hasattr(os, "sendfile"):
--- a/copyparty/version.py
+++ b/copyparty/version.py
@@ -1,8 +1,8 @@
 # coding: utf-8

-VERSION = (1, 13, 4)
-CODENAME = "race the beam"
-BUILD_DT = (2024, 7, 16)
+VERSION = (1, 15, 3)
+CODENAME = "fill the drives"
+BUILD_DT = (2024, 9, 16)

 S_VERSION = ".".join(map(str, VERSION))
 S_BUILD_DT = "{0:04d}-{1:02d}-{2:02d}".format(*BUILD_DT)
--- a/copyparty/authsrv.py
+++ b/copyparty/authsrv.py
@@ -4,6 +4,7 @@ from __future__ import print_function, unicode_literals
 import argparse
 import base64
 import hashlib
+import json
 import os
 import re
 import stat
@@ -12,7 +13,7 @@ import threading
 import time
 from datetime import datetime

-from .__init__ import ANYWIN, TYPE_CHECKING, WINDOWS, E
+from .__init__ import ANYWIN, PY2, TYPE_CHECKING, WINDOWS, E
 from .bos import bos
 from .cfg import flagdescs, permdescs, vf_bmap, vf_cmap, vf_vmap
 from .pwhash import PWHash
@@ -34,9 +35,11 @@ from .util import (
    odfusion,
    relchk,
    statdir,
+    ub64enc,
    uncyg,
    undot,
    unhumanize,
+    vjoin,
    vsplit,
 )

@@ -56,6 +59,9 @@ if TYPE_CHECKING:
    # Vflags: TypeAlias = dict[str, Any]
    # Mflags: TypeAlias = dict[str, Vflags]

+if PY2:
+    range = xrange  # type: ignore
+

 LEELOO_DALLAS = "leeloo_dallas"

@@ -338,6 +344,8 @@ class VFS(object):
        self.histtab: dict[str, str] = {}  # all realpath->histpath
        self.dbv: Optional[VFS] = None  # closest full/non-jump parent
        self.lim: Optional[Lim] = None  # upload limits; only set for dbv
+        self.shr_src: Optional[tuple[VFS, str]] = None  # source vfs+rem of a share
+        self.shr_files: set[str] = set()  # filenames to include from shr_src
        self.aread: dict[str, list[str]] = {}
        self.awrite: dict[str, list[str]] = {}
        self.amove: dict[str, list[str]] = {}
@@ -362,6 +370,9 @@ class VFS(object):
            self.all_aps = []
            self.all_vps = []

+        self.get_dbv = self._get_dbv
+        self.ls = self._ls
+
    def __repr__(self) -> str:
        return "VFS(%s)" % (
            ", ".join(
@@ -441,7 +452,7 @@ class VFS(object):

    def _find(self, vpath: str) -> tuple["VFS", str]:
        """return [vfs,remainder]"""
-        if vpath == "":
+        if not vpath:
            return self, ""

        if "/" in vpath:
@@ -451,7 +462,7 @@ class VFS(object):
            rem = ""

        if name in self.nodes:
-            return self.nodes[name]._find(undot(rem))
+            return self.nodes[name]._find(rem)

        return self, vpath

@@ -518,12 +529,20 @@ class VFS(object):
                    t = "{} has no {} in [{}] => [{}] => [{}]"
                    self.log("vfs", t.format(uname, msg, vpath, cvpath, ap), 6)

-                t = 'you don\'t have %s-access in "/%s"'
-                raise Pebkac(err, t % (msg, cvpath))
+                t = 'you don\'t have %s-access in "/%s" or below "/%s"'
+                raise Pebkac(err, t % (msg, cvpath, vn.vpath))

        return vn, rem

-    def get_dbv(self, vrem: str) -> tuple["VFS", str]:
+    def _get_share_src(self, vrem: str) -> tuple["VFS", str]:
+        src = self.shr_src
+        if not src:
+            return self._get_dbv(vrem)
+
+        shv, srem = src
+        return shv, vjoin(srem, vrem)
+
+    def _get_dbv(self, vrem: str) -> tuple["VFS", str]:
        dbv = self.dbv
        if not dbv:
            return self, vrem
@@ -549,7 +568,26 @@ class VFS(object):
        ad, fn = os.path.split(ap)
        return os.path.join(absreal(ad), fn)

-    def ls(
+    def _ls_nope(
+        self, *a, **ka
+    ) -> tuple[str, list[tuple[str, os.stat_result]], dict[str, "VFS"]]:
+        raise Pebkac(500, "nope.avi")
+
+    def _ls_shr(
+        self,
+        rem: str,
+        uname: str,
+        scandir: bool,
+        permsets: list[list[bool]],
+        lstat: bool = False,
+    ) -> tuple[str, list[tuple[str, os.stat_result]], dict[str, "VFS"]]:
+        """replaces _ls for certain shares (single-file, or file selection)"""
+        vn, rem = self.shr_src  # type: ignore
+        abspath, real, _ = vn.ls(rem, "\n", scandir, permsets, lstat)
+        real = [x for x in real if os.path.basename(x[0]) in self.shr_files]
+        return abspath, real, {}
+
+    def _ls(
        self,
        rem: str,
        uname: str,
@@ -802,8 +840,11 @@ class AuthSrv(object):

        # fwd-decl
        self.vfs = VFS(log_func, "", "", AXS(), {})
-        self.acct: dict[str, str] = {}
-        self.iacct: dict[str, str] = {}
+        self.acct: dict[str, str] = {}  # uname->pw
+        self.iacct: dict[str, str] = {}  # pw->uname
+        self.ases: dict[str, str] = {}  # uname->session
+        self.sesa: dict[str, str] = {}  # session->uname
+        self.defpw: dict[str, str] = {}
        self.grps: dict[str, list[str]] = {}
        self.re_pwd: Optional[re.Pattern] = None

@@ -814,6 +855,7 @@ class AuthSrv(object):
        self.idp_accs: dict[str, list[str]] = {}  # username->groupnames
        self.idp_usr_gh: dict[str, str] = {}  # username->group-header-value (cache)

+        self.hid_cache: dict[str, str] = {}
        self.mutex = threading.Lock()
        self.reload()

@@ -1349,7 +1391,7 @@ class AuthSrv(object):
        flags[name] = vals
        self._e("volflag [{}] += {}  ({})".format(name, vals, desc))

-    def reload(self) -> None:
+    def reload(self, verbosity: int = 9) -> None:
        """
        construct a flat list of mountpoints and usernames
        first from the commandline arguments
@@ -1357,9 +1399,9 @@ class AuthSrv(object):
        before finally building the VFS
        """
        with self.mutex:
-            self._reload()
+            self._reload(verbosity)

-    def _reload(self) -> None:
+    def _reload(self, verbosity: int = 9) -> None:
        acct: dict[str, str] = {}  # username:password
        grps: dict[str, list[str]] = {}  # groupname:usernames
        daxs: dict[str, AXS] = {}
@@ -1437,6 +1479,8 @@ class AuthSrv(object):
                    raise

        self.setup_pwhash(acct)
+        defpw = acct.copy()
+        self.setup_chpw(acct)

        # case-insensitive; normalize
        if WINDOWS:
@@ -1452,9 +1496,8 @@ class AuthSrv(object):
            vfs = VFS(self.log_func, absreal("."), "", axs, {})
        elif "" not in mount:
            # there's volumes but no root; make root inaccessible
-            vfs = VFS(self.log_func, "", "", AXS(), {})
-            vfs.flags["tcolor"] = self.args.tcolor
-            vfs.flags["d2d"] = True
+            zsd = {"d2d": True, "tcolor": self.args.tcolor}
+            vfs = VFS(self.log_func, "", "", AXS(), zsd)

        maxdepth = 0
        for dst in sorted(mount.keys(), key=lambda x: (x.count("/"), len(x))):
@@ -1483,6 +1526,56 @@ class AuthSrv(object):
            vol.all_vps.sort(key=lambda x: len(x[0]), reverse=True)
            vol.root = vfs

+        enshare = self.args.shr
+        shr = enshare[1:-1]
+        shrs = enshare[1:]
+        if enshare:
+            import sqlite3
+
+            shv = VFS(self.log_func, "", shr, AXS(), {})
+
+            db_path = self.args.shr_db
+            db = sqlite3.connect(db_path)
+            cur = db.cursor()
+            cur2 = db.cursor()
+            now = time.time()
+            for row in cur.execute("select * from sh"):
+                s_k, s_pw, s_vp, s_pr, s_nf, s_un, s_t0, s_t1 = row
+                if s_t1 and s_t1 < now:
+                    continue
+
+                if self.args.shr_v:
+                    t = "loading %s share [%s] by [%s] => [%s]"
+                    self.log(t % (s_pr, s_k, s_un, s_vp))
+
+                if s_pw:
+                    # gotta reuse the "account" for all shares with this pw,
+                    # so do a light scramble as this appears in the web-ui
+                    zb = hashlib.sha512(s_pw.encode("utf-8")).digest()
+                    sun = "s_%s" % (ub64enc(zb)[4:16].decode("ascii"),)
+                    acct[sun] = s_pw
+                else:
+                    sun = "*"
+
+                s_axs = AXS(
+                    [sun] if "r" in s_pr else [],
+                    [sun] if "w" in s_pr else [],
+                    [sun] if "m" in s_pr else [],
+                    [sun] if "d" in s_pr else [],
+                )
+
+                # don't know the abspath yet + wanna ensure the user
+                # still has the privs they granted, so nullmap it
+                shv.nodes[s_k] = VFS(
+                    self.log_func, "", "%s/%s" % (shr, s_k), s_axs, shv.flags.copy()
+                )
+
+            vfs.nodes[shr] = vfs.all_vols[shr] = shv
+            for vol in shv.nodes.values():
+                vfs.all_vols[vol.vpath] = vol
+                vol.get_dbv = vol._get_share_src
+                vol.ls = vol._ls_nope
+
        zss = set(acct)
        zss.update(self.idp_accs)
        zss.discard("*")
@@ -1501,7 +1594,7 @@ class AuthSrv(object):
            for usr in unames:
                for vp, vol in vfs.all_vols.items():
                    zx = getattr(vol.axs, axs_key)
-                    if usr in zx:
+                    if usr in zx and (not enshare or not vp.startswith(shrs)):
                        umap[usr].append(vp)
                umap[usr].sort()
            setattr(vfs, "a" + perm, umap)
@@ -1551,6 +1644,8 @@ class AuthSrv(object):

        for usr in acct:
            if usr not in associated_users:
+                if enshare and usr.startswith("s_"):
+                    continue
                if len(vfs.all_vols) > 1:
                    # user probably familiar enough that the verbose message is not necessary
                    t = "account [%s] is not mentioned in any volume definitions; see --help-accounts"
@@ -1562,8 +1657,12 @@ class AuthSrv(object):
        promote = []
        demote = []
        for vol in vfs.all_vols.values():
-            zb = hashlib.sha512(afsenc(vol.realpath)).digest()
-            hid = base64.b32encode(zb).decode("ascii").lower()
+            hid = self.hid_cache.get(vol.realpath)
+            if not hid:
+                zb = hashlib.sha512(afsenc(vol.realpath)).digest()
+                hid = base64.b32encode(zb).decode("ascii").lower()
+                self.hid_cache[vol.realpath] = hid
+
            vflag = vol.flags.get("hist")
            if vflag == "-":
                pass
@@ -1799,6 +1898,11 @@ class AuthSrv(object):
            if len(zs) == 3:  # fc5 => ffcc55
                vol.flags["tcolor"] = "".join([x * 2 for x in zs])

+            if vol.flags.get("neversymlink"):
+                vol.flags["hardlinkonly"] = True  # was renamed
+            if vol.flags.get("hardlinkonly"):
+                vol.flags["hardlink"] = True
+
            for k1, k2 in IMPLICATIONS:
                if k1 in vol.flags:
                    vol.flags[k2] = True
@@ -1895,7 +1999,7 @@ class AuthSrv(object):
                    self.log(t.format(vol.vpath), 1)
                    del vol.flags["lifetime"]

-                needs_e2d = [x for x in hooks if x != "xm"]
+                needs_e2d = [x for x in hooks if x in ("xau", "xiu")]
                drop = [x for x in needs_e2d if vol.flags.get(x)]
                if drop:
                    t = 'removing [{}] from volume "/{}" because e2d is disabled'
@@ -1903,9 +2007,6 @@ class AuthSrv(object):
                    for x in drop:
                        vol.flags.pop(x)

-            if vol.flags.get("neversymlink") and not vol.flags.get("hardlink"):
-                vol.flags["copydupes"] = True
-
            # verify tags mentioned by -mt[mp] are used by -mte
            local_mtp = {}
            local_only_mtp = {}
@@ -1984,11 +2085,16 @@ class AuthSrv(object):

        have_e2d = False
        have_e2t = False
+        have_dedup = False
+        unsafe_dedup = []
        t = "volumes and permissions:\n"
        for zv in vfs.all_vols.values():
-            if not self.warn_anonwrite:
+            if not self.warn_anonwrite or verbosity < 5:
                break

+            if enshare and (zv.vpath == shr or zv.vpath.startswith(shrs)):
+                continue
+
            t += '\n\033[36m"/{}"  \033[33m{}\033[0m'.format(zv.vpath, zv.realpath)
            for txt, attr in [
                ["  read", "uread"],
@@ -2013,9 +2119,14 @@ class AuthSrv(object):
            if "e2t" in zv.flags:
                have_e2t = True

+            if "dedup" in zv.flags:
+                have_dedup = True
+                if "e2d" not in zv.flags and "hardlink" not in zv.flags:
+                    unsafe_dedup.append("/" + zv.vpath)
+
            t += "\n"

-        if self.warn_anonwrite:
+        if self.warn_anonwrite and verbosity > 4:
            if not self.args.no_voldump:
                self.log(t)

@@ -2025,10 +2136,17 @@ class AuthSrv(object):
                    self.log("\n\033[{}\033[0m\n".format(t))

                if not have_e2t:
-                    t = "hint: argument -e2ts enables multimedia indexing (artist/title/...)"
+                    t = "hint: enable multimedia indexing (artist/title/...) with argument -e2ts"
                    self.log(t, 6)
            else:
-                t = "hint: argument -e2dsa enables searching, upload-undo, and better deduplication"
+                t = "hint: enable searching and upload-undo with argument -e2dsa"
+                self.log(t, 6)
+
+            if unsafe_dedup:
+                t = "WARNING: symlink-based deduplication is enabled for some volumes, but without indexing. Please enable -e2dsa and/or --hardlink to avoid problems when moving/renaming files. Affected volumes: %s"
+                self.log(t % (", ".join(unsafe_dedup)), 3)
+            elif not have_dedup:
+                t = "hint: enable upload deduplication with --dedup (but see readme for consequences)"
                self.log(t, 6)

            zv, _ = vfs.get("/", "*", False, False)
@@ -2039,7 +2157,7 @@ class AuthSrv(object):

        try:
            zv, _ = vfs.get("", "*", False, True, err=999)
-            if self.warn_anonwrite and os.getcwd() == zv.realpath:
+            if self.warn_anonwrite and verbosity > 4 and os.getcwd() == zv.realpath:
                t = "anyone can write to the current directory: {}\n"
                self.log(t.format(zv.realpath), c=1)

@@ -2066,11 +2184,15 @@ class AuthSrv(object):

        self.vfs = vfs
        self.acct = acct
+        self.defpw = defpw
        self.grps = grps
        self.iacct = {v: k for k, v in acct.items()}

+        self.load_sessions()
+
        self.re_pwd = None
        pwds = [re.escape(x) for x in self.iacct.keys()]
+        pwds.extend(list(self.sesa))
        if pwds:
            if self.ah.on:
                zs = r"(\[H\] pw:.*|[?&]pw=)([^&]+)"
@@ -2086,6 +2208,235 @@ class AuthSrv(object):
                MIMES[ext] = mime
            EXTS.update({v: k for k, v in MIMES.items()})

+        if enshare:
+            # hide shares from controlpanel
+            vfs.all_vols = {
+                x: y
+                for x, y in vfs.all_vols.items()
+                if x != shr and not x.startswith(shrs)
+            }
+
+            assert db and cur and cur2 and shv  # type: ignore
+            for row in cur.execute("select * from sh"):
+                s_k, s_pw, s_vp, s_pr, s_nf, s_un, s_t0, s_t1 = row
+                shn = shv.nodes.get(s_k, None)
+                if not shn:
+                    continue
+
+                try:
+                    s_vfs, s_rem = vfs.get(
+                        s_vp, s_un, "r" in s_pr, "w" in s_pr, "m" in s_pr, "d" in s_pr
+                    )
+                except Exception as ex:
+                    t = "removing share [%s] by [%s] to [%s] due to %r"
+                    self.log(t % (s_k, s_un, s_vp, ex), 3)
+                    shv.nodes.pop(s_k)
+                    continue
+
+                fns = []
+                if s_nf:
+                    q = "select vp from sf where k = ?"
+                    for (s_fn,) in cur2.execute(q, (s_k,)):
+                        fns.append(s_fn)
+
+                    shn.shr_files = set(fns)
+                    shn.ls = shn._ls_shr
+                else:
+                    shn.ls = shn._ls
+
+                shn.shr_src = (s_vfs, s_rem)
+                shn.realpath = s_vfs.canonical(s_rem)
+
+                if self.args.shr_v:
+                    t = "mapped %s share [%s] by [%s] => [%s] => [%s]"
+                    self.log(t % (s_pr, s_k, s_un, s_vp, shn.realpath))
+
+            # transplant shadowing into shares
+            for vn in shv.nodes.values():
+                svn, srem = vn.shr_src  # type: ignore
+                if srem:
+                    continue  # free branch, safe
+                ap = svn.canonical(srem)
+                if bos.path.isfile(ap):
+                    continue  # also fine
+                for zs in svn.nodes.keys():
+                    # hide subvolume
+                    vn.nodes[zs] = VFS(self.log_func, "", "", AXS(), {})
+
+            cur2.close()
+            cur.close()
+            db.close()
+
+    def load_sessions(self, quiet=False) -> None:
+        # mutex me
+        if self.args.no_ses:
+            self.ases = {}
+            self.sesa = {}
+            return
+
+        import sqlite3
+
+        ases = {}
+        blen = (self.args.ses_len // 4) * 4  # 3 bytes in 4 chars
+        blen = (blen * 3) // 4  # bytes needed for ses_len chars
+
+        db = sqlite3.connect(self.args.ses_db)
+        cur = db.cursor()
+
+        for uname, sid in cur.execute("select un, si from us"):
+            if uname in self.acct:
+                ases[uname] = sid
+
+        n = []
+        q = "insert into us values (?,?,?)"
+        for uname in self.acct:
+            if uname not in ases:
+                sid = ub64enc(os.urandom(blen)).decode("ascii")
+                cur.execute(q, (uname, sid, int(time.time())))
+                ases[uname] = sid
+                n.append(uname)
+
+        if n:
+            db.commit()
+
+        cur.close()
+        db.close()
+
+        self.ases = ases
+        self.sesa = {v: k for k, v in ases.items()}
+        if n and not quiet:
+            t = ", ".join(n[:3])
+            if len(n) > 3:
+                t += "..."
+            self.log("added %d new sessions (%s)" % (len(n), t))
+
+    def forget_session(self, broker: Optional["BrokerCli"], uname: str) -> None:
+        with self.mutex:
+            self._forget_session(uname)
+
+        if broker:
+            broker.ask("_reload_sessions").get()
+
+    def _forget_session(self, uname: str) -> None:
+        if self.args.no_ses:
+            return
+
+        import sqlite3
+
+        db = sqlite3.connect(self.args.ses_db)
+        cur = db.cursor()
+        cur.execute("delete from us where un = ?", (uname,))
+        db.commit()
+        cur.close()
+        db.close()
+
+        self.sesa.pop(self.ases.get(uname, ""), "")
+        self.ases.pop(uname, "")
+
+    def chpw(self, broker: Optional["BrokerCli"], uname, pw) -> tuple[bool, str]:
+        if not self.args.chpw:
+            return False, "feature disabled in server config"
+
+        if uname == "*" or uname not in self.defpw:
+            return False, "not logged in"
+
+        if uname in self.args.chpw_no:
+            return False, "not allowed for this account"
+
+        if len(pw) < self.args.chpw_len:
+            t = "minimum password length: %d characters"
+            return False, t % (self.args.chpw_len,)
+
+        hpw = self.ah.hash(pw) if self.ah.on else pw
+
+        if hpw == self.acct[uname]:
+            return False, "that's already your password my dude"
+
+        if hpw in self.iacct or hpw in self.sesa:
+            return False, "password is taken"
+
+        with self.mutex:
+            ap = self.args.chpw_db
+            if not bos.path.exists(ap):
+                pwdb = {}
+            else:
+                with open(ap, "r", encoding="utf-8") as f:
+                    pwdb = json.load(f)
+
+            pwdb = [x for x in pwdb if x[0] != uname]
+            pwdb.append((uname, self.defpw[uname], hpw))
+
+            with open(ap, "w", encoding="utf-8") as f:
+                json.dump(pwdb, f, separators=(",\n", ": "))
+
+            self.log("reinitializing due to password-change for user [%s]" % (uname,))
+
+            if not broker:
+                # only true for tests
+                self._reload()
+                return True, "new password OK"
+
+        broker.ask("_reload_blocking", False, False).get()
+        return True, "new password OK"
+
+    def setup_chpw(self, acct: dict[str, str]) -> None:
+        ap = self.args.chpw_db
+        if not self.args.chpw or not bos.path.exists(ap):
+            return
+
+        with open(ap, "r", encoding="utf-8") as f:
+            pwdb = json.load(f)
+
+        useen = set()
+        urst = set()
+        uok = set()
+        for usr, orig, mod in pwdb:
+            useen.add(usr)
+            if usr not in acct:
+                # previous user, no longer known
+                continue
+            if acct[usr] != orig:
+                urst.add(usr)
+                continue
+            uok.add(usr)
+            acct[usr] = mod
+
+        if not self.args.chpw_v:
+            return
+
+        for usr in acct:
+            if usr not in useen:
+                urst.add(usr)
+
+        for zs in uok:
+            urst.discard(zs)
+
+        if self.args.chpw_v == 1 or (self.args.chpw_v == 2 and not urst):
+            t = "chpw: %d changed, %d unchanged"
+            self.log(t % (len(uok), len(urst)))
+            return
+
+        elif self.args.chpw_v == 2:
+            t = "chpw: %d changed" % (len(uok))
+            if urst:
+                t += ", \033[0munchanged:\033[35m %s" % (", ".join(list(urst)))
+
+            self.log(t, 6)
+            return
+
+        msg = ""
+        if uok:
+            t = "\033[0mchanged: \033[32m%s"
+            msg += t % (", ".join(list(uok)),)
+        if urst:
+            t = "%s\033[0munchanged: \033[35m%s"
+            msg += t % (
+                ", " if msg else "",
+                ", ".join(list(urst)),
+            )
+
+        self.log("chpw: " + msg, 6)
+
    def setup_pwhash(self, acct: dict[str, str]) -> None:
        self.ah = PWHash(self.args)
        if not self.ah.on:
--- a/copyparty/broker_mp.py
+++ b/copyparty/broker_mp.py
@@ -9,14 +9,14 @@ import queue

 from .__init__ import CORES, TYPE_CHECKING
 from .broker_mpw import MpWorker
-from .broker_util import ExceptionalQueue, try_exec
+from .broker_util import ExceptionalQueue, NotExQueue, try_exec
 from .util import Daemon, mp

 if TYPE_CHECKING:
    from .svchub import SvcHub

 if True:  # pylint: disable=using-constant-test
-    from typing import Any
+    from typing import Any, Union


 class MProcess(mp.Process):
@@ -76,6 +76,10 @@ class BrokerMp(object):
        for _, proc in enumerate(self.procs):
            proc.q_pend.put((0, "reload", []))

+    def reload_sessions(self) -> None:
+        for _, proc in enumerate(self.procs):
+            proc.q_pend.put((0, "reload_sessions", []))
+
    def collector(self, proc: MProcess) -> None:
        """receive message from hub in other process"""
        while True:
@@ -104,7 +108,7 @@ class BrokerMp(object):
                if retq_id:
                    proc.q_pend.put((retq_id, "retq", rv))

-    def ask(self, dest: str, *args: Any) -> ExceptionalQueue:
+    def ask(self, dest: str, *args: Any) -> Union[ExceptionalQueue, NotExQueue]:

        # new non-ipc invoking managed service in hub
        obj = self.hub
--- a/copyparty/broker_mpw.py
+++ b/copyparty/broker_mpw.py
@@ -11,7 +11,7 @@ import queue

 from .__init__ import ANYWIN
 from .authsrv import AuthSrv
-from .broker_util import BrokerCli, ExceptionalQueue
+from .broker_util import BrokerCli, ExceptionalQueue, NotExQueue
 from .httpsrv import HttpSrv
 from .util import FAKE_MP, Daemon, HMaccas

@@ -94,6 +94,10 @@ class MpWorker(BrokerCli):
                self.asrv.reload()
                self.logw("mpw.asrv reloaded")

+            elif dest == "reload_sessions":
+                with self.asrv.mutex:
+                    self.asrv.load_sessions()
+
            elif dest == "listen":
                self.httpsrv.listen(args[0], args[1])

@@ -110,7 +114,7 @@ class MpWorker(BrokerCli):
            else:
                raise Exception("what is " + str(dest))

-    def ask(self, dest: str, *args: Any) -> ExceptionalQueue:
+    def ask(self, dest: str, *args: Any) -> Union[ExceptionalQueue, NotExQueue]:
        retq = ExceptionalQueue(1)
        retq_id = id(retq)
        with self.retpend_mutex:
--- a/copyparty/broker_thr.py
+++ b/copyparty/broker_thr.py
@@ -5,7 +5,7 @@ import os
 import threading

 from .__init__ import TYPE_CHECKING
-from .broker_util import BrokerCli, ExceptionalQueue, try_exec
+from .broker_util import BrokerCli, ExceptionalQueue, NotExQueue
 from .httpsrv import HttpSrv
 from .util import HMaccas

@@ -13,7 +13,7 @@ if TYPE_CHECKING:
    from .svchub import SvcHub

 if True:  # pylint: disable=using-constant-test
-    from typing import Any
+    from typing import Any, Union


 class BrokerThr(BrokerCli):
@@ -34,6 +34,7 @@ class BrokerThr(BrokerCli):
        self.iphash = HMaccas(os.path.join(self.args.E.cfg, "iphash"), 8)
        self.httpsrv = HttpSrv(self, None)
        self.reload = self.noop
+        self.reload_sessions = self.noop

    def shutdown(self) -> None:
        # self.log("broker", "shutting down")
@@ -42,19 +43,14 @@ class BrokerThr(BrokerCli):
    def noop(self) -> None:
        pass

-    def ask(self, dest: str, *args: Any) -> ExceptionalQueue:
+    def ask(self, dest: str, *args: Any) -> Union[ExceptionalQueue, NotExQueue]:

        # new ipc invoking managed service in hub
        obj = self.hub
        for node in dest.split("."):
            obj = getattr(obj, node)

-        rv = try_exec(True, obj, *args)
-
-        # pretend we're broker_mp
-        retq = ExceptionalQueue(1)
-        retq.put(rv)
-        return retq
+        return NotExQueue(obj(*args))  # type: ignore

    def say(self, dest: str, *args: Any) -> None:
        if dest == "listen":
@@ -70,4 +66,4 @@ class BrokerThr(BrokerCli):
        for node in dest.split("."):
            obj = getattr(obj, node)

-        try_exec(False, obj, *args)
+        obj(*args)  # type: ignore
--- a/copyparty/broker_util.py
+++ b/copyparty/broker_util.py
@@ -28,11 +28,23 @@ class ExceptionalQueue(Queue, object):
                if rv[1] == "pebkac":
                    raise Pebkac(*rv[2:])
                else:
-                    raise Exception(rv[2])
+                    raise rv[2]

        return rv


+class NotExQueue(object):
+    """
+    BrokerThr uses this instead of ExceptionalQueue; 7x faster
+    """
+
+    def __init__(self, rv: Any) -> None:
+        self.rv = rv
+
+    def get(self) -> Any:
+        return self.rv
+
+
 class BrokerCli(object):
    """
    helps mypy understand httpsrv.broker but still fails a few levels deeper,
@@ -48,7 +60,7 @@ class BrokerCli(object):
    def __init__(self) -> None:
        pass

-    def ask(self, dest: str, *args: Any) -> ExceptionalQueue:
+    def ask(self, dest: str, *args: Any) -> Union[ExceptionalQueue, NotExQueue]:
        return ExceptionalQueue(1)

    def say(self, dest: str, *args: Any) -> None:
@@ -65,8 +77,8 @@ def try_exec(want_retval: Union[bool, int], func: Any, *args: list[Any]) -> Any:

        return ["exception", "pebkac", ex.code, str(ex)]

-    except:
+    except Exception as ex:
        if not want_retval:
            raise

-        return ["exception", "stack", traceback.format_exc()]
+        return ["exception", "stack", ex]
--- a/copyparty/cert.py
+++ b/copyparty/cert.py
@@ -9,7 +9,7 @@ import time
 from .__init__ import ANYWIN
 from .util import Netdev, runcmd, wrename, wunlink

-HAVE_CFSSL = True
+HAVE_CFSSL = not os.environ.get("PRTY_NO_CFSSL")

 if True:  # pylint: disable=using-constant-test
    from .util import NamedLogger, RootLogger
--- a/copyparty/cfg.py
+++ b/copyparty/cfg.py
@@ -12,8 +12,8 @@ def vf_bmap() -> dict[str, str]:
        "dav_auth": "davauth",
        "dav_rt": "davrt",
        "ed": "dots",
-        "never_symlink": "neversymlink",
-        "no_dedup": "copydupes",
+        "hardlink_only": "hardlinkonly",
+        "no_dirsz": "nodirsz",
        "no_dupe": "nodupe",
        "no_forget": "noforget",
        "no_pipe": "nopipe",
@@ -23,6 +23,7 @@ def vf_bmap() -> dict[str, str]:
        "no_athumb": "dathumb",
    }
    for k in (
+        "dedup",
        "dotsrch",
        "e2d",
        "e2ds",
@@ -58,6 +59,7 @@ def vf_vmap() -> dict[str, str]:
        "no_hash": "nohash",
        "no_idx": "noidx",
        "re_maxage": "scan",
+        "safe_dedup": "safededup",
        "th_convt": "convt",
        "th_size": "thsize",
        "th_crop": "crop",
@@ -129,10 +131,11 @@ permdescs = {

 flagcats = {
    "uploads, general": {
+        "dedup": "enable symlink-based file deduplication",
+        "hardlink": "enable hardlink-based file deduplication,\nwith fallback on symlinks when that is impossible",
+        "hardlinkonly": "dedup with hardlink only, never symlink;\nmake a full copy if hardlink is impossible",
+        "safededup": "verify on-disk data before using it for dedup",
        "nodupe": "rejects existing files (instead of symlinking them)",
-        "hardlink": "does dedup with hardlinks instead of symlinks",
-        "neversymlink": "disables symlink fallback; full copy instead",
-        "copydupes": "disables dedup, always saves full copies of dupes",
        "sparse": "force use of sparse files, mainly for s3-backed storage",
        "daw": "enable full WebDAV write support (dangerous);\nPUT-operations will now \033[1;31mOVERWRITE\033[0;35m existing files",
        "nosub": "forces all uploads into the top folder of the vfs",
@@ -159,7 +162,7 @@ flagcats = {
        "lifetime=3600": "uploads are deleted after 1 hour",
    },
    "database, general": {
-        "e2d": "enable database; makes files searchable + enables upload dedup",
+        "e2d": "enable database; makes files searchable + enables upload-undo",
        "e2ds": "scan writable folders for new files on startup; also sets -e2d",
        "e2dsa": "scans all folders for new files on startup; also sets -e2d",
        "e2t": "enable multimedia indexing; makes it possible to search for tags",
@@ -177,7 +180,7 @@ flagcats = {
        "noforget": "don't forget files when deleted from disk",
        "fat32": "avoid excessive reindexing on android sdcardfs",
        "dbd=[acid|swal|wal|yolo]": "database speed-durability tradeoff",
-        "xlink": "cross-volume dupe detection / linking",
+        "xlink": "cross-volume dupe detection / linking (dangerous)",
        "xdev": "do not descend into other filesystems",
        "xvol": "do not follow symlinks leaving the volume root",
        "dotsrch": "show dotfiles in search results",
--- a/copyparty/fsutil.py
+++ b/copyparty/fsutil.py
@@ -9,12 +9,12 @@ import time
 from .__init__ import ANYWIN, MACOS
 from .authsrv import AXS, VFS
 from .bos import bos
-from .util import chkcmd, min_ex
+from .util import chkcmd, min_ex, undot

 if True:  # pylint: disable=using-constant-test
    from typing import Optional, Union

-    from .util import RootLogger
+    from .util import RootLogger, undot


 class Fstab(object):
@@ -52,7 +52,7 @@ class Fstab(object):
                self.log(msg.format(path, fs, min_ex()), 3)
                return fs

-        path = path.lstrip("/")
+        path = undot(path)
        try:
            return self.cache[path]
        except:
@@ -119,12 +119,12 @@ class Fstab(object):
        self.srctab = srctab

    def relabel(self, path: str, nval: str) -> None:
-        assert self.tab
+        assert self.tab  # !rm
        self.cache = {}
        if ANYWIN:
            path = self._winpath(path)

-        path = path.lstrip("/")
+        path = undot(path)
        ptn = re.compile(r"^[^\\/]*")
        vn, rem = self.tab._find(path)
        if not self.trusted:
@@ -156,7 +156,7 @@ class Fstab(object):
                    self.log("failed to build tab:\n{}".format(min_ex()), 3)
                self.build_fallback()

-        assert self.tab
+        assert self.tab  # !rm
        ret = self.tab._find(path)[0]
        if self.trusted or path == ret.vpath:
            return ret.realpath.split("/")[0]
@@ -167,6 +167,6 @@ class Fstab(object):
        if not self.tab:
            self.build_fallback()

-        assert self.tab
+        assert self.tab  # !rm
        ret = self.tab._find(path)[0]
        return ret.realpath
--- a/copyparty/ftpd.py
+++ b/copyparty/ftpd.py
@@ -41,6 +41,9 @@ if True:  # pylint: disable=using-constant-test
    import typing
    from typing import Any, Optional, Union

+if PY2:
+    range = xrange  # type: ignore
+

 class FSE(FilesystemError):
    def __init__(self, msg: str, severity: int = 0) -> None:
@@ -350,7 +353,7 @@ class FtpFs(AbstractedFS):
        svp = join(self.cwd, src).lstrip("/")
        dvp = join(self.cwd, dst).lstrip("/")
        try:
-            self.hub.up2k.handle_mv(self.uname, svp, dvp)
+            self.hub.up2k.handle_mv(self.uname, self.h.cli_ip, svp, dvp)
        except Exception as ex:
            raise FSE(str(ex))

@@ -468,6 +471,9 @@ class FtpHandler(FTPHandler):
        xbu = vfs.flags.get("xbu")
        if xbu and not runhook(
            None,
+            None,
+            self.hub.up2k,
+            "xbu.ftpd",
            xbu,
            ap,
            vp,
@@ -477,7 +483,7 @@ class FtpHandler(FTPHandler):
            0,
            0,
            self.cli_ip,
-            0,
+            time.time(),
            "",
        ):
            raise FSE("Upload blocked by xbu server config")
@@ -580,9 +586,15 @@ class Ftpd(object):
        if "::" in ips:
            ips.append("0.0.0.0")

+        ips = [x for x in ips if "unix:" not in x]
+
        if self.args.ftp4:
            ips = [x for x in ips if ":" not in x]

+        if not ips:
+            lgr.fatal("cannot start ftp-server; no compatible IPs in -i")
+            return
+
        ips = list(ODict.fromkeys(ips))  # dedup

        ioloop = IOLoop()
--- a/copyparty/httpcli.py
+++ b/copyparty/httpcli.py
--- a/copyparty/httpconn.py
+++ b/copyparty/httpconn.py
@@ -9,6 +9,9 @@ import threading  # typechk
 import time

 try:
+    if os.environ.get("PRTY_NO_TLS"):
+        raise Exception()
+
    HAVE_SSL = True
    import ssl
 except:
@@ -187,7 +190,7 @@ class HttpConn(object):

                if self.args.ssl_dbg and hasattr(self.s, "shared_ciphers"):
                    ciphers = self.s.shared_ciphers()
-                    assert ciphers
+                    assert ciphers  # !rm
                    overlap = [str(y[::-1]) for y in ciphers]
                    self.log("TLS cipher overlap:" + "\n".join(overlap))
                    for k, v in [
--- a/copyparty/httpsrv.py
+++ b/copyparty/httpsrv.py
@@ -1,7 +1,6 @@
 # coding: utf-8
 from __future__ import print_function, unicode_literals

-import base64
 import math
 import os
 import re
@@ -12,7 +11,7 @@ import time

 import queue

-from .__init__ import ANYWIN, CORES, EXE, MACOS, TYPE_CHECKING, EnvParams, unicode
+from .__init__ import ANYWIN, CORES, EXE, MACOS, PY2, TYPE_CHECKING, EnvParams, unicode

 try:
    MNFE = ModuleNotFoundError
@@ -75,6 +74,7 @@ from .util import (
    spack,
    start_log_thrs,
    start_stackmon,
+    ub64enc,
 )

 if TYPE_CHECKING:
@@ -84,6 +84,12 @@ if TYPE_CHECKING:
 if True:  # pylint: disable=using-constant-test
    from typing import Any, Optional

+if PY2:
+    range = xrange  # type: ignore
+
+if not hasattr(socket, "AF_UNIX"):
+    setattr(socket, "AF_UNIX", -9001)
+

 class HttpSrv(object):
    """
@@ -148,7 +154,17 @@ class HttpSrv(object):

        env = jinja2.Environment()
        env.loader = jinja2.FileSystemLoader(os.path.join(self.E.mod, "web"))
-        jn = ["splash", "svcs", "browser", "browser2", "msg", "md", "mde", "cf"]
+        jn = [
+            "splash",
+            "shares",
+            "svcs",
+            "browser",
+            "browser2",
+            "msg",
+            "md",
+            "mde",
+            "cf",
+        ]
        self.j2 = {x: env.get_template(x + ".html") for x in jn}
        zs = os.path.join(self.E.mod, "web", "deps", "prism.js.gz")
        self.prism = os.path.exists(zs)
@@ -221,7 +237,7 @@ class HttpSrv(object):
        if self.args.log_htp:
            self.log(self.name, "workers -= {} = {}".format(n, self.tp_nthr), 6)

-        assert self.tp_q
+        assert self.tp_q  # !rm
        for _ in range(n):
            self.tp_q.put(None)

@@ -240,15 +256,24 @@ class HttpSrv(object):
                    return

    def listen(self, sck: socket.socket, nlisteners: int) -> None:
+        tcp = sck.family != socket.AF_UNIX
+
        if self.args.j != 1:
            # lost in the pickle; redefine
            if not ANYWIN or self.args.reuseaddr:
                sck.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

-            sck.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
+            if tcp:
+                sck.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
+
            sck.settimeout(None)  # < does not inherit, ^ opts above do

-        ip, port = sck.getsockname()[:2]
+        if tcp:
+            ip, port = sck.getsockname()[:2]
+        else:
+            ip = re.sub(r"\.[0-9]+$", "", sck.getsockname().split("/")[-1])
+            port = 0
+
        self.srvs.append(sck)
        self.bound.add((ip, port))
        self.nclimax = math.ceil(self.args.nc * 1.0 / nlisteners)
@@ -260,10 +285,19 @@ class HttpSrv(object):

    def thr_listen(self, srv_sck: socket.socket) -> None:
        """listens on a shared tcp server"""
-        ip, port = srv_sck.getsockname()[:2]
        fno = srv_sck.fileno()
-        hip = "[{}]".format(ip) if ":" in ip else ip
-        msg = "subscribed @ {}:{}  f{} p{}".format(hip, port, fno, os.getpid())
+        if srv_sck.family == socket.AF_UNIX:
+            ip = re.sub(r"\.[0-9]+$", "", srv_sck.getsockname())
+            msg = "subscribed @ %s  f%d p%d" % (ip, fno, os.getpid())
+            ip = ip.split("/")[-1]
+            port = 0
+            tcp = False
+        else:
+            tcp = True
+            ip, port = srv_sck.getsockname()[:2]
+            hip = "[%s]" % (ip,) if ":" in ip else ip
+            msg = "subscribed @ %s:%d  f%d p%d" % (hip, port, fno, os.getpid())
+
        self.log(self.name, msg)

        Daemon(self.broker.say, "sig-hsrv-up1", ("cb_httpsrv_up",))
@@ -335,11 +369,13 @@ class HttpSrv(object):

            try:
                sck, saddr = srv_sck.accept()
-                cip = unicode(saddr[0])
-                if cip.startswith("::ffff:"):
-                    cip = cip[7:]
-
-                addr = (cip, saddr[1])
+                if tcp:
+                    cip = unicode(saddr[0])
+                    if cip.startswith("::ffff:"):
+                        cip = cip[7:]
+                    addr = (cip, saddr[1])
+                else:
+                    addr = ("127.8.3.7", sck.fileno())
            except (OSError, socket.error) as ex:
                if self.stopping:
                    break
@@ -395,7 +431,7 @@ class HttpSrv(object):
        )

    def thr_poolw(self) -> None:
-        assert self.tp_q
+        assert self.tp_q  # !rm
        while True:
            task = self.tp_q.get()
            if not task:
@@ -507,8 +543,8 @@ class HttpSrv(object):
            except:
                pass

-            v = base64.urlsafe_b64encode(spack(b">xxL", int(v)))
-            self.cb_v = v.decode("ascii")[-4:]
+            # spack gives 4 lsb, take 3 lsb, get 4 ch
+            self.cb_v = ub64enc(spack(b">L", int(v))[1:]).decode("ascii")
            self.cb_ts = time.time()
            return self.cb_v

--- a/copyparty/ico.py
+++ b/copyparty/ico.py
@@ -74,7 +74,7 @@ class Ico(object):
                try:
                    _, _, tw, th = pb.textbbox((0, 0), ext)
                except:
-                    tw, th = pb.textsize(ext)
+                    tw, th = pb.textsize(ext)  # type: ignore

                tw += len(ext)
                cw = tw // len(ext)
--- a/copyparty/mtag.py
+++ b/copyparty/mtag.py
@@ -32,6 +32,17 @@ if True:  # pylint: disable=using-constant-test
    from .util import NamedLogger, RootLogger


+try:
+    if os.environ.get("PRTY_NO_MUTAGEN"):
+        raise Exception()
+
+    from mutagen import version  # noqa: F401
+
+    HAVE_MUTAGEN = True
+except:
+    HAVE_MUTAGEN = False
+
+
 def have_ff(scmd: str) -> bool:
    if ANYWIN:
        scmd += ".exe"
@@ -48,8 +59,8 @@ def have_ff(scmd: str) -> bool:
        return bool(shutil.which(scmd))


-HAVE_FFMPEG = have_ff("ffmpeg")
-HAVE_FFPROBE = have_ff("ffprobe")
+HAVE_FFMPEG = not os.environ.get("PRTY_NO_FFMPEG") and have_ff("ffmpeg")
+HAVE_FFPROBE = not os.environ.get("PRTY_NO_FFPROBE") and have_ff("ffprobe")


 class MParser(object):
@@ -336,9 +347,7 @@ class MTag(object):

        if self.backend == "mutagen":
            self._get = self.get_mutagen
-            try:
-                from mutagen import version  # noqa: F401
-            except:
+            if not HAVE_MUTAGEN:
                self.log("could not load Mutagen, trying FFprobe instead", c=3)
                self.backend = "ffprobe"

@@ -578,7 +587,7 @@ class MTag(object):
                continue

            if k == ".aq":
-                v /= 1000
+                v /= 1000  # type: ignore

            if k == "ac" and v.startswith("mp4a.40."):
                v = "aac"
--- a/copyparty/pwhash.py
+++ b/copyparty/pwhash.py
@@ -4,11 +4,21 @@ from __future__ import print_function, unicode_literals
 import argparse
 import base64
 import hashlib
+import os
 import sys
 import threading

 from .__init__ import unicode

+try:
+    if os.environ.get("PRTY_NO_ARGON2"):
+        raise Exception()
+
+    HAVE_ARGON2 = True
+    from argon2 import __version__ as argon2ver
+except:
+    HAVE_ARGON2 = False
+

 class PWHash(object):
    def __init__(self, args: argparse.Namespace):
--- a/copyparty/smbd.py
+++ b/copyparty/smbd.py
@@ -187,6 +187,8 @@ class SMB(object):

        debug('%s("%s", %s) %s @%s\033[K\033[0m', caller, vpath, str(a), perms, uname)
        vfs, rem = self.asrv.vfs.get(vpath, uname, *perms)
+        if not vfs.realpath:
+            raise Exception("unmapped vfs")
        return vfs, vfs.canonical(rem)

    def _listdir(self, vpath: str, *a: Any, **ka: Any) -> list[str]:
@@ -195,6 +197,8 @@ class SMB(object):
        uname = self._uname()
        # debug('listdir("%s", %s) @%s\033[K\033[0m', vpath, str(a), uname)
        vfs, rem = self.asrv.vfs.get(vpath, uname, False, False)
+        if not vfs.realpath:
+            raise Exception("unmapped vfs")
        _, vfs_ls, vfs_virt = vfs.ls(
            rem, uname, not self.args.no_scandir, [[False, False]]
        )
@@ -240,7 +244,21 @@ class SMB(object):

            xbu = vfs.flags.get("xbu")
            if xbu and not runhook(
-                self.nlog, xbu, ap, vpath, "", "", "", 0, 0, "1.7.6.2", 0, ""
+                self.nlog,
+                None,
+                self.hub.up2k,
+                "xbu.smb",
+                xbu,
+                ap,
+                vpath,
+                "",
+                "",
+                "",
+                0,
+                0,
+                "1.7.6.2",
+                time.time(),
+                "",
            ):
                yeet("blocked by xbu server config: " + vpath)

@@ -297,7 +315,7 @@ class SMB(object):
            t = "blocked rename (no-move-acc %s): /%s @%s"
            yeet(t % (vfs1.axs.umove, vp1, uname))

-        self.hub.up2k.handle_mv(uname, vp1, vp2)
+        self.hub.up2k.handle_mv(uname, "1.7.6.2", vp1, vp2)
        try:
            bos.makedirs(ap2)
        except:
--- a/copyparty/ssdp.py
+++ b/copyparty/ssdp.py
@@ -5,11 +5,11 @@ import errno
 import re
 import select
 import socket
-from email.utils import formatdate
+import time

 from .__init__ import TYPE_CHECKING
 from .multicast import MC_Sck, MCast
-from .util import CachedSet, html_escape, min_ex
+from .util import CachedSet, formatdate, html_escape, min_ex

 if TYPE_CHECKING:
    from .broker_util import BrokerCli
@@ -229,7 +229,7 @@ CONFIGID.UPNP.ORG: 1

 """
        v4 = srv.ip.replace("::ffff:", "")
-        zs = zs.format(formatdate(usegmt=True), v4, srv.hport, self.args.zsid)
+        zs = zs.format(formatdate(), v4, srv.hport, self.args.zsid)
        zb = zs[1:].replace("\n", "\r\n").encode("utf-8", "replace")
        srv.sck.sendto(zb, addr[:2])

--- a/copyparty/stolen/dnslib/dns.py
+++ b/copyparty/stolen/dnslib/dns.py
@@ -12,6 +12,12 @@ from .label import DNSBuffer, DNSLabel
 from .ranges import IP4, IP6, H, I, check_bytes


+try:
+    range = xrange
+except:
+    pass
+
+
 class DNSError(Exception):
    pass

--- a/copyparty/stolen/ifaddr/init.py
+++ b/copyparty/stolen/ifaddr/init.py
@@ -11,7 +11,21 @@ import os

 from ._shared import IP, Adapter

-if os.name == "nt":
+
+def nope(include_unconfigured=False):
+    return []
+
+
+try:
+    S390X = os.uname().machine == "s390x"
+except:
+    S390X = False
+
+
+if os.environ.get("PRTY_NO_IFADDR") or S390X:
+    # s390x deadlocks at libc.getifaddrs
+    get_adapters = nope
+elif os.name == "nt":
    from ._win32 import get_adapters
 elif os.name == "posix":
    from ._posix import get_adapters
--- a/copyparty/stolen/ifaddr/_shared.py
+++ b/copyparty/stolen/ifaddr/_shared.py
@@ -17,6 +17,7 @@ if not PY2:
    U: Callable[[str], str] = str
 else:
    U = unicode  # noqa: F821  # pylint: disable=undefined-variable,self-assigning-variable
+    range = xrange  # noqa: F821  # pylint: disable=undefined-variable,self-assigning-variable


 class Adapter(object):
--- a/copyparty/stolen/qrcodegen.py
+++ b/copyparty/stolen/qrcodegen.py
@@ -16,6 +16,11 @@ if True:  # pylint: disable=using-constant-test

    from typing import Callable, List, Optional, Tuple, Union

+try:
+    range = xrange
+except:
+    pass
+

 def num_char_count_bits(ver: int) -> int:
    return 16 if (ver + 7) // 17 else 8
--- a/copyparty/sutil.py
+++ b/copyparty/sutil.py
@@ -6,7 +6,7 @@ import tempfile
 from datetime import datetime

 from .__init__ import CORES
-from .authsrv import AuthSrv, VFS
+from .authsrv import VFS, AuthSrv
 from .bos import bos
 from .th_cli import ThumbCli
 from .util import UTC, vjoin, vol_san
--- a/copyparty/svchub.py
+++ b/copyparty/svchub.py
@@ -2,8 +2,6 @@
 from __future__ import print_function, unicode_literals

 import argparse
-import base64
-import calendar
 import errno
 import gzip
 import logging
@@ -16,7 +14,7 @@ import string
 import sys
 import threading
 import time
-from datetime import datetime, timedelta
+from datetime import datetime

 # from inspect import currentframe
 # print(currentframe().f_lineno)
@@ -28,18 +26,30 @@ if True:  # pylint: disable=using-constant-test
    import typing
    from typing import Any, Optional, Union

-from .__init__ import ANYWIN, EXE, MACOS, TYPE_CHECKING, E, EnvParams, unicode
+from .__init__ import ANYWIN, EXE, MACOS, PY2, TYPE_CHECKING, E, EnvParams, unicode
 from .authsrv import BAD_CFG, AuthSrv
 from .cert import ensure_cert
-from .mtag import HAVE_FFMPEG, HAVE_FFPROBE
+from .mtag import HAVE_FFMPEG, HAVE_FFPROBE, HAVE_MUTAGEN
+from .pwhash import HAVE_ARGON2
 from .tcpsrv import TcpSrv
-from .th_srv import HAVE_PIL, HAVE_VIPS, HAVE_WEBP, ThumbSrv
+from .th_srv import (
+    HAVE_AVIF,
+    HAVE_FFMPEG,
+    HAVE_FFPROBE,
+    HAVE_HEIF,
+    HAVE_PIL,
+    HAVE_VIPS,
+    HAVE_WEBP,
+    ThumbSrv,
+)
 from .up2k import Up2k
 from .util import (
    DEF_EXP,
    DEF_MTE,
    DEF_MTH,
    FFMPEG_URL,
+    HAVE_PSUTIL,
+    HAVE_SQLITE3,
    UTC,
    VERSIONS,
    Daemon,
@@ -56,6 +66,7 @@ from .util import (
    pybin,
    start_log_thrs,
    start_stackmon,
+    ub64enc,
 )

 if TYPE_CHECKING:
@@ -65,6 +76,9 @@ if TYPE_CHECKING:
    except:
        pass

+if PY2:
+    range = xrange  # type: ignore
+

 class SvcHub(object):
    """
@@ -89,8 +103,10 @@ class SvcHub(object):
        self.argv = argv
        self.E: EnvParams = args.E
        self.no_ansi = args.no_ansi
+        self.tz = UTC if args.log_utc else None
        self.logf: Optional[typing.TextIO] = None
        self.logf_base_fn = ""
+        self.is_dut = False  # running in unittest; always False
        self.stop_req = False
        self.stopping = False
        self.stopped = False
@@ -102,7 +118,8 @@ class SvcHub(object):
        self.httpsrv_up = 0

        self.log_mutex = threading.Lock()
-        self.next_day = 0
+        self.cday = 0
+        self.cmon = 0
        self.tstack = 0.0

        self.iphash = HMaccas(os.path.join(self.E.cfg, "iphash"), 8)
@@ -193,6 +210,23 @@ class SvcHub(object):
            t = "WARNING: --s-rd-sz (%d) is larger than --iobuf (%d); this may lead to reduced performance"
            self.log("root", t % (args.s_rd_sz, args.iobuf), 3)

+        if args.chpw and args.idp_h_usr:
+            t = "ERROR: user-changeable passwords is incompatible with IdP/identity-providers; you must disable either --chpw or --idp-h-usr"
+            self.log("root", t, 1)
+            raise Exception(t)
+
+        noch = set()
+        for zs in args.chpw_no or []:
+            zsl = [x.strip() for x in zs.split(",")]
+            noch.update([x for x in zsl if x])
+        args.chpw_no = noch
+
+        if not self.args.no_ses:
+            self.setup_session_db()
+
+        if args.shr:
+            self.setup_share_db()
+
        bri = "zy"[args.theme % 2 :][:1]
        ch = "abcdefghijklmnopqrstuvwx"[int(args.theme / 2)]
        args.theme = "{0}{1} {0} {1}".format(ch, bri)
@@ -232,6 +266,8 @@ class SvcHub(object):

        self.up2k = Up2k(self)

+        self._feature_test()
+
        decs = {k: 1 for k in self.args.th_dec.split(",")}
        if not HAVE_VIPS:
            decs.pop("vips", None)
@@ -336,6 +372,151 @@ class SvcHub(object):

        self.broker = Broker(self)

+    def setup_session_db(self) -> None:
+        if not HAVE_SQLITE3:
+            self.args.no_ses = True
+            t = "WARNING: sqlite3 not available; disabling sessions, will use plaintext passwords in cookies"
+            self.log("root", t, 3)
+            return
+
+        import sqlite3
+
+        create = True
+        db_path = self.args.ses_db
+        self.log("root", "opening sessions-db %s" % (db_path,))
+        for n in range(2):
+            try:
+                db = sqlite3.connect(db_path)
+                cur = db.cursor()
+                try:
+                    cur.execute("select count(*) from us").fetchone()
+                    create = False
+                    break
+                except:
+                    pass
+            except Exception as ex:
+                if n:
+                    raise
+                t = "sessions-db corrupt; deleting and recreating: %r"
+                self.log("root", t % (ex,), 3)
+                try:
+                    cur.close()  # type: ignore
+                except:
+                    pass
+                try:
+                    db.close()  # type: ignore
+                except:
+                    pass
+                os.unlink(db_path)
+
+        sch = [
+            r"create table kv (k text, v int)",
+            r"create table us (un text, si text, t0 int)",
+            # username, session-id, creation-time
+            r"create index us_un on us(un)",
+            r"create index us_si on us(si)",
+            r"create index us_t0 on us(t0)",
+            r"insert into kv values ('sver', 1)",
+        ]
+
+        assert db  # type: ignore  # !rm
+        assert cur  # type: ignore  # !rm
+        if create:
+            for cmd in sch:
+                cur.execute(cmd)
+            self.log("root", "created new sessions-db")
+            db.commit()
+
+        cur.close()
+        db.close()
+
+    def setup_share_db(self) -> None:
+        al = self.args
+        if not HAVE_SQLITE3:
+            self.log("root", "sqlite3 not available; disabling --shr", 1)
+            al.shr = ""
+            return
+
+        import sqlite3
+
+        al.shr = al.shr.strip("/")
+        if "/" in al.shr or not al.shr:
+            t = "config error: --shr must be the name of a virtual toplevel directory to put shares inside"
+            self.log("root", t, 1)
+            raise Exception(t)
+
+        al.shr = "/%s/" % (al.shr,)
+
+        create = True
+        modified = False
+        db_path = self.args.shr_db
+        self.log("root", "opening shares-db %s" % (db_path,))
+        for n in range(2):
+            try:
+                db = sqlite3.connect(db_path)
+                cur = db.cursor()
+                try:
+                    cur.execute("select count(*) from sh").fetchone()
+                    create = False
+                    break
+                except:
+                    pass
+            except Exception as ex:
+                if n:
+                    raise
+                t = "shares-db corrupt; deleting and recreating: %r"
+                self.log("root", t % (ex,), 3)
+                try:
+                    cur.close()  # type: ignore
+                except:
+                    pass
+                try:
+                    db.close()  # type: ignore
+                except:
+                    pass
+                os.unlink(db_path)
+
+        sch1 = [
+            r"create table kv (k text, v int)",
+            r"create table sh (k text, pw text, vp text, pr text, st int, un text, t0 int, t1 int)",
+            # sharekey, password, src, perms, numFiles, owner, created, expires
+        ]
+        sch2 = [
+            r"create table sf (k text, vp text)",
+            r"create index sf_k on sf(k)",
+            r"create index sh_k on sh(k)",
+            r"create index sh_t1 on sh(t1)",
+        ]
+
+        assert db  # type: ignore  # !rm
+        assert cur  # type: ignore  # !rm
+        if create:
+            dver = 2
+            modified = True
+            for cmd in sch1 + sch2:
+                cur.execute(cmd)
+            self.log("root", "created new shares-db")
+        else:
+            (dver,) = cur.execute("select v from kv where k = 'sver'").fetchall()[0]
+
+        if dver == 1:
+            modified = True
+            for cmd in sch2:
+                cur.execute(cmd)
+            cur.execute("update sh set st = 0")
+            self.log("root", "shares-db schema upgrade ok")
+
+        if modified:
+            for cmd in [
+                r"delete from kv where k = 'sver'",
+                r"insert into kv values ('sver', %d)" % (2,),
+            ]:
+                cur.execute(cmd)
+            db.commit()
+
+        cur.close()
+        db.close()
+
    def start_ftpd(self) -> None:
        time.sleep(30)

@@ -420,6 +601,58 @@ class SvcHub(object):

        Daemon(self.sd_notify, "sd-notify")

+    def _feature_test(self) -> None:
+        fok = []
+        fng = []
+        t_ff = "transcode audio, create spectrograms, video thumbnails"
+        to_check = [
+            (HAVE_SQLITE3, "sqlite", "sessions and file/media indexing"),
+            (HAVE_PIL, "pillow", "image thumbnails (plenty fast)"),
+            (HAVE_VIPS, "vips", "image thumbnails (faster, eats more ram)"),
+            (HAVE_WEBP, "pillow-webp", "create thumbnails as webp files"),
+            (HAVE_FFMPEG, "ffmpeg", t_ff + ", good-but-slow image thumbnails"),
+            (HAVE_FFPROBE, "ffprobe", t_ff + ", read audio/media tags"),
+            (HAVE_MUTAGEN, "mutagen", "read audio tags (ffprobe is better but slower)"),
+            (HAVE_ARGON2, "argon2", "secure password hashing (advanced users only)"),
+            (HAVE_HEIF, "pillow-heif", "read .heif images with pillow (rarely useful)"),
+            (HAVE_AVIF, "pillow-avif", "read .avif images with pillow (rarely useful)"),
+        ]
+        if ANYWIN:
+            to_check += [
+                (HAVE_PSUTIL, "psutil", "improved plugin cleanup  (rarely useful)")
+            ]
+
+        verbose = self.args.deps
+        if verbose:
+            self.log("dependencies", "")
+
+        for have, feat, what in to_check:
+            lst = fok if have else fng
+            lst.append((feat, what))
+            if verbose:
+                zi = 2 if have else 5
+                sgot = "found" if have else "missing"
+                t = "%7s: %s \033[36m(%s)"
+                self.log("dependencies", t % (sgot, feat, what), zi)
+
+        if verbose:
+            self.log("dependencies", "")
+            return
+
+        sok = ", ".join(x[0] for x in fok)
+        sng = ", ".join(x[0] for x in fng)
+
+        t = ""
+        if sok:
+            t += "OK: \033[32m" + sok
+        if sng:
+            if t:
+                t += ", "
+            t += "\033[0mNG: \033[35m" + sng
+
+        t += "\033[0m, see --deps"
+        self.log("dependencies", t, 6)
+
    def _check_env(self) -> None:
        try:
            files = os.listdir(E.cfg)
@@ -620,7 +853,7 @@ class SvcHub(object):
            self.args.nc = min(self.args.nc, soft // 2)

    def _logname(self) -> str:
-        dt = datetime.now(UTC)
+        dt = datetime.now(self.tz)
        fn = str(self.args.lo)
        for fs in "YmdHMS":
            fs = "%" + fs
@@ -746,18 +979,21 @@ class SvcHub(object):
        Daemon(self._reload, "reloading")
        return "reload initiated"

-    def _reload(self, rescan_all_vols: bool = True) -> None:
+    def _reload(self, rescan_all_vols: bool = True, up2k: bool = True) -> None:
        with self.up2k.mutex:
            if self.reloading != 1:
                return
            self.reloading = 2
            self.log("root", "reloading config")
-            self.asrv.reload()
-            self.up2k.reload(rescan_all_vols)
+            self.asrv.reload(9 if up2k else 4)
+            if up2k:
+                self.up2k.reload(rescan_all_vols)
+            else:
+                self.log("root", "reload done")
            self.broker.reload()
            self.reloading = 0

-    def _reload_blocking(self, rescan_all_vols: bool = True) -> None:
+    def _reload_blocking(self, rescan_all_vols: bool = True, up2k: bool = True) -> None:
        while True:
            with self.up2k.mutex:
                if self.reloading < 2:
@@ -768,7 +1004,12 @@ class SvcHub(object):
        # try to handle multiple pending IdP reloads at once:
        time.sleep(0.2)

-        self._reload(rescan_all_vols=rescan_all_vols)
+        self._reload(rescan_all_vols=rescan_all_vols, up2k=up2k)
+
+    def _reload_sessions(self) -> None:
+        with self.asrv.mutex:
+            self.asrv.load_sessions(True)
+        self.broker.reload_sessions()

    def stop_thr(self) -> None:
        while not self.stop_req:
@@ -890,12 +1131,12 @@ class SvcHub(object):
            return

        with self.log_mutex:
-            zd = datetime.now(UTC)
+            dt = datetime.now(self.tz)
            ts = self.log_dfmt % (
-                zd.year,
-                zd.month * 100 + zd.day,
-                (zd.hour * 100 + zd.minute) * 100 + zd.second,
-                zd.microsecond // self.log_div,
+                dt.year,
+                dt.month * 100 + dt.day,
+                (dt.hour * 100 + dt.minute) * 100 + dt.second,
+                dt.microsecond // self.log_div,
            )

            if c and not self.args.no_ansi:
@@ -916,41 +1157,26 @@ class SvcHub(object):
            if not self.args.no_logflush:
                self.logf.flush()

-            now = time.time()
-            if int(now) >= self.next_day:
-                self._set_next_day()
+            if dt.day != self.cday or dt.month != self.cmon:
+                self._set_next_day(dt)

-    def _set_next_day(self) -> None:
-        if self.next_day and self.logf and self.logf_base_fn != self._logname():
+    def _set_next_day(self, dt: datetime) -> None:
+        if self.cday and self.logf and self.logf_base_fn != self._logname():
            self.logf.close()
            self._setup_logfile("")

-        dt = datetime.now(UTC)
-
-        # unix timestamp of next 00:00:00 (leap-seconds safe)
-        day_now = dt.day
-        while dt.day == day_now:
-            dt += timedelta(hours=12)
-
-        dt = dt.replace(hour=0, minute=0, second=0)
-        try:
-            tt = dt.utctimetuple()
-        except:
-            # still makes me hella uncomfortable
-            tt = dt.timetuple()
-
-        self.next_day = calendar.timegm(tt)
+        self.cday = dt.day
+        self.cmon = dt.month

    def _log_enabled(self, src: str, msg: str, c: Union[int, str] = 0) -> None:
        """handles logging from all components"""
        with self.log_mutex:
-            now = time.time()
-            if int(now) >= self.next_day:
-                dt = datetime.fromtimestamp(now, UTC)
+            dt = datetime.now(self.tz)
+            if dt.day != self.cday or dt.month != self.cmon:
                zs = "{}\n" if self.no_ansi else "\033[36m{}\033[0m\n"
                zs = zs.format(dt.strftime("%Y-%m-%d"))
                print(zs, end="")
-                self._set_next_day()
+                self._set_next_day(dt)
                if self.logf:
                    self.logf.write(zs)

@@ -969,12 +1195,11 @@ class SvcHub(object):
                else:
                    msg = "%s%s\033[0m" % (c, msg)

-            zd = datetime.fromtimestamp(now, UTC)
            ts = self.log_efmt % (
-                zd.hour,
-                zd.minute,
-                zd.second,
-                zd.microsecond // self.log_div,
+                dt.hour,
+                dt.minute,
+                dt.second,
+                dt.microsecond // self.log_div,
            )
            msg = fmt % (ts, src, msg)
            try:
@@ -1072,5 +1297,5 @@ class SvcHub(object):
        zs = "{}\n{}".format(VERSIONS, alltrace())
        zb = zs.encode("utf-8", "replace")
        zb = gzip.compress(zb)
-        zs = base64.b64encode(zb).decode("ascii")
+        zs = ub64enc(zb).decode("ascii")
        self.log("stacks", zs)
--- a/copyparty/szip.py
+++ b/copyparty/szip.py
@@ -37,9 +37,7 @@ def dostime2unix(buf: bytes) -> int:


 def unixtime2dos(ts: int) -> bytes:
-    tt = time.gmtime(ts + 1)
-    dy, dm, dd, th, tm, ts = list(tt)[:6]
-
+    dy, dm, dd, th, tm, ts, _, _, _ = time.gmtime(ts + 1)
    bd = ((dy - 1980) << 9) + (dm << 5) + dd
    bt = (th << 11) + (tm << 5) + ts // 2
    try:
--- a/copyparty/tcpsrv.py
+++ b/copyparty/tcpsrv.py
@@ -17,18 +17,23 @@ from .util import (
    E_UNREACH,
    HAVE_IPV6,
    IP6ALL,
+    VF_CAREFUL,
    Netdev,
+    atomic_move,
    min_ex,
    sunpack,
    termsize,
 )

 if True:
-    from typing import Generator
+    from typing import Generator, Union

 if TYPE_CHECKING:
    from .svchub import SvcHub

+if not hasattr(socket, "AF_UNIX"):
+    setattr(socket, "AF_UNIX", -9001)
+
 if not hasattr(socket, "IPPROTO_IPV6"):
    setattr(socket, "IPPROTO_IPV6", 41)

@@ -217,14 +222,41 @@ class TcpSrv(object):
        if self.args.qr or self.args.qrs:
            self.qr = self._qr(qr1, qr2)

+    def nlog(self, msg: str, c: Union[int, str] = 0) -> None:
+        self.log("tcpsrv", msg, c)
+
    def _listen(self, ip: str, port: int) -> None:
-        ipv = socket.AF_INET6 if ":" in ip else socket.AF_INET
+        uds_perm = uds_gid = -1
+        if "unix:" in ip:
+            tcp = False
+            ipv = socket.AF_UNIX
+            uds = ip.split(":")
+            ip = uds[-1]
+            if len(uds) > 2:
+                uds_perm = int(uds[1], 8)
+            if len(uds) > 3:
+                try:
+                    uds_gid = int(uds[2])
+                except:
+                    import grp
+
+                    uds_gid = grp.getgrnam(uds[2]).gr_gid
+
+        elif ":" in ip:
+            tcp = True
+            ipv = socket.AF_INET6
+        else:
+            tcp = True
+            ipv = socket.AF_INET
+
        srv = socket.socket(ipv, socket.SOCK_STREAM)

        if not ANYWIN or self.args.reuseaddr:
            srv.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

-        srv.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
+        if tcp:
+            srv.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
+
        srv.settimeout(None)  # < does not inherit, ^ opts above do

        try:
@@ -236,8 +268,25 @@ class TcpSrv(object):
            srv.setsockopt(socket.SOL_IP, socket.IP_FREEBIND, 1)

        try:
-            srv.bind((ip, port))
-            sport = srv.getsockname()[1]
+            if tcp:
+                srv.bind((ip, port))
+            else:
+                if ANYWIN or self.args.rm_sck:
+                    if os.path.exists(ip):
+                        os.unlink(ip)
+                    srv.bind(ip)
+                else:
+                    tf = "%s.%d" % (ip, os.getpid())
+                    if os.path.exists(tf):
+                        os.unlink(tf)
+                    srv.bind(tf)
+                    if uds_gid != -1:
+                        os.chown(tf, -1, uds_gid)
+                    if uds_perm != -1:
+                        os.chmod(tf, uds_perm)
+                    atomic_move(self.nlog, tf, ip, VF_CAREFUL)
+
+            sport = srv.getsockname()[1] if tcp else port
            if port != sport:
                # linux 6.0.16 lets you bind a port which is in use
                # except it just gives you a random port instead
@@ -249,12 +298,23 @@ class TcpSrv(object):
            except:
                pass

+            e = ""
            if ex.errno in E_ADDR_IN_USE:
                e = "\033[1;31mport {} is busy on interface {}\033[0m".format(port, ip)
+                if not tcp:
+                    e = "\033[1;31munix-socket {} is busy\033[0m".format(ip)
            elif ex.errno in E_ADDR_NOT_AVAIL:
                e = "\033[1;31minterface {} does not exist\033[0m".format(ip)
-            else:
+
+            if not e:
+                if not tcp:
+                    t = "\n\n\n  NOTE: this crash may be due to a unix-socket bug; try --rm-sck\n"
+                    self.log("tcpsrv", t, 2)
                raise
+
+            if not tcp and not self.args.rm_sck:
+                e += "; maybe this is a bug? try --rm-sck"
+
            raise Exception(e)

    def run(self) -> None:
@@ -262,7 +322,14 @@ class TcpSrv(object):
        bound: list[tuple[str, int]] = []
        srvs: list[socket.socket] = []
        for srv in self.srv:
-            ip, port = srv.getsockname()[:2]
+            if srv.family == socket.AF_UNIX:
+                tcp = False
+                ip = re.sub(r"\.[0-9]+$", "", srv.getsockname())
+                port = 0
+            else:
+                tcp = True
+                ip, port = srv.getsockname()[:2]
+
            if ip == IP6ALL:
                ip = "::"  # jython

@@ -294,8 +361,12 @@ class TcpSrv(object):
            bound.append((ip, port))
            srvs.append(srv)
            fno = srv.fileno()
-            hip = "[{}]".format(ip) if ":" in ip else ip
-            msg = "listening @ {}:{}  f{} p{}".format(hip, port, fno, os.getpid())
+            if tcp:
+                hip = "[{}]".format(ip) if ":" in ip else ip
+                msg = "listening @ {}:{}  f{} p{}".format(hip, port, fno, os.getpid())
+            else:
+                msg = "listening @ {}  f{} p{}".format(ip, fno, os.getpid())
+
            self.log("tcpsrv", msg)
            if self.args.q:
                print(msg)
@@ -348,6 +419,8 @@ class TcpSrv(object):
    def detect_interfaces(self, listen_ips: list[str]) -> dict[str, Netdev]:
        from .stolen.ifaddr import get_adapters

+        listen_ips = [x for x in listen_ips if "unix:" not in x]
+
        nics = get_adapters(True)
        eps: dict[str, Netdev] = {}
        for nic in nics:
--- a/copyparty/tftpd.py
+++ b/copyparty/tftpd.py
@@ -36,7 +36,7 @@ from partftpy.TftpShared import TftpException
 from .__init__ import EXE, PY2, TYPE_CHECKING
 from .authsrv import VFS
 from .bos import bos
-from .util import BytesIO, Daemon, ODict, exclude_dotfiles, min_ex, runhook, undot
+from .util import UTC, BytesIO, Daemon, ODict, exclude_dotfiles, min_ex, runhook, undot

 if True:  # pylint: disable=using-constant-test
    from typing import Any, Union
@@ -44,6 +44,9 @@ if True:  # pylint: disable=using-constant-test
 if TYPE_CHECKING:
    from .svchub import SvcHub

+if PY2:
+    range = xrange  # type: ignore
+

 lg = logging.getLogger("tftp")
 debug, info, warning, error = (lg.debug, lg.info, lg.warning, lg.error)
@@ -163,9 +166,16 @@ class Tftpd(object):
        if "::" in ips:
            ips.append("0.0.0.0")

+        ips = [x for x in ips if "unix:" not in x]
+
        if self.args.tftp4:
            ips = [x for x in ips if ":" not in x]

+        if not ips:
+            t = "cannot start tftp-server; no compatible IPs in -i"
+            self.nlog(t, 1)
+            return
+
        ips = list(ODict.fromkeys(ips))  # dedup

        for ip in ips:
@@ -241,6 +251,8 @@ class Tftpd(object):

        debug('%s("%s", %s) %s\033[K\033[0m', caller, vpath, str(a), perms)
        vfs, rem = self.asrv.vfs.get(vpath, "*", *perms)
+        if not vfs.realpath:
+            raise Exception("unmapped vfs")
        return vfs, vfs.canonical(rem)

    def _ls(self, vpath: str, raddress: str, rport: int, force=False) -> Any:
@@ -262,7 +274,7 @@ class Tftpd(object):
        dirs1 = [(v.st_mtime, v.st_size, k + "/") for k, v in vfs_ls if k in dnames]
        fils1 = [(v.st_mtime, v.st_size, k) for k, v in vfs_ls if k not in dnames]
        real1 = dirs1 + fils1
-        realt = [(datetime.fromtimestamp(mt), sz, fn) for mt, sz, fn in real1]
+        realt = [(datetime.fromtimestamp(mt, UTC), sz, fn) for mt, sz, fn in real1]
        reals = [
            (
                "%04d-%02d-%02d %02d:%02d:%02d"
@@ -328,7 +340,21 @@ class Tftpd(object):

            xbu = vfs.flags.get("xbu")
            if xbu and not runhook(
-                self.nlog, xbu, ap, vpath, "", "", "", 0, 0, "8.3.8.7", 0, ""
+                self.nlog,
+                None,
+                self.hub.up2k,
+                "xbu.tftpd",
+                xbu,
+                ap,
+                vpath,
+                "",
+                "",
+                "",
+                0,
+                0,
+                "8.3.8.7",
+                time.time(),
+                "",
            ):
                yeet("blocked by xbu server config: " + vpath)

@@ -336,7 +362,7 @@ class Tftpd(object):
            return self._ls(vpath, "", 0, True)

        if not a:
-            a = [self.args.iobuf]
+            a = (self.args.iobuf,)

        return open(ap, mode, *a, **ka)

@@ -377,7 +403,7 @@ class Tftpd(object):
            bos.stat(ap)
            return True
        except:
-            return False
+            return vpath == "/"

    def _p_isdir(self, vpath: str) -> bool:
        try:
@@ -385,7 +411,7 @@ class Tftpd(object):
            ret = stat.S_ISDIR(st.st_mode)
            return ret
        except:
-            return False
+            return vpath == "/"

    def _hook(self, *a: Any, **ka: Any) -> None:
        src = inspect.currentframe().f_back.f_code.co_name
--- a/copyparty/th_cli.py
+++ b/copyparty/th_cli.py
@@ -59,7 +59,8 @@ class ThumbCli(object):

        want_opus = fmt in ("opus", "caf", "mp3")
        is_au = ext in self.fmt_ffa
-        if is_au:
+        is_vau = want_opus and ext in self.fmt_ffv
+        if is_au or is_vau:
            if want_opus:
                if self.args.no_acode:
                    return None
@@ -107,7 +108,7 @@ class ThumbCli(object):

            fmt = sfmt

-        elif fmt[:1] == "p" and not is_au:
+        elif fmt[:1] == "p" and not is_au and not is_vid:
            t = "cannot thumbnail [%s]: png only allowed for waveforms"
            self.log(t % (rem), 6)
            return None
--- a/copyparty/th_srv.py
+++ b/copyparty/th_srv.py
@@ -1,7 +1,6 @@
 # coding: utf-8
 from __future__ import print_function, unicode_literals

-import base64
 import hashlib
 import logging
 import os
@@ -12,7 +11,7 @@ import time

 from queue import Queue

-from .__init__ import ANYWIN, TYPE_CHECKING
+from .__init__ import ANYWIN, PY2, TYPE_CHECKING
 from .authsrv import VFS
 from .bos import bos
 from .mtag import HAVE_FFMPEG, HAVE_FFPROBE, au_unpk, ffprobe
@@ -27,6 +26,7 @@ from .util import (
    min_ex,
    runcmd,
    statdir,
+    ub64enc,
    vsplit,
    wrename,
    wunlink,
@@ -38,6 +38,9 @@ if True:  # pylint: disable=using-constant-test
 if TYPE_CHECKING:
    from .svchub import SvcHub

+if PY2:
+    range = xrange  # type: ignore
+
 HAVE_PIL = False
 HAVE_PILF = False
 HAVE_HEIF = False
@@ -45,22 +48,34 @@ HAVE_AVIF = False
 HAVE_WEBP = False

 try:
+    if os.environ.get("PRTY_NO_PIL"):
+        raise Exception()
+
    from PIL import ExifTags, Image, ImageFont, ImageOps

    HAVE_PIL = True
    try:
+        if os.environ.get("PRTY_NO_PILF"):
+            raise Exception()
+
        ImageFont.load_default(size=16)
        HAVE_PILF = True
    except:
        pass

    try:
+        if os.environ.get("PRTY_NO_PIL_WEBP"):
+            raise Exception()
+
        Image.new("RGB", (2, 2)).save(BytesIO(), format="webp")
        HAVE_WEBP = True
    except:
        pass

    try:
+        if os.environ.get("PRTY_NO_PIL_HEIF"):
+            raise Exception()
+
        from pyheif_pillow_opener import register_heif_opener

        register_heif_opener()
@@ -69,6 +84,9 @@ try:
        pass

    try:
+        if os.environ.get("PRTY_NO_PIL_AVIF"):
+            raise Exception()
+
        import pillow_avif  # noqa: F401  # pylint: disable=unused-import

        HAVE_AVIF = True
@@ -80,6 +98,9 @@ except:
    pass

 try:
+    if os.environ.get("PRTY_NO_VIPS"):
+        raise Exception()
+
    HAVE_VIPS = True
    import pyvips

@@ -88,6 +109,9 @@ except:
    HAVE_VIPS = False


+th_dir_cache = {}
+
+
 def thumb_path(histpath: str, rem: str, mtime: float, fmt: str, ffa: set[str]) -> str:
    # base16 = 16 = 256
    # b64-lc = 38 = 1444
@@ -101,14 +125,20 @@ def thumb_path(histpath: str, rem: str, mtime: float, fmt: str, ffa: set[str]) -
    if ext in ffa and fmt[:2] in ("wf", "jf"):
        fmt = fmt.replace("f", "")

-    rd += "\n" + fmt
-    h = hashlib.sha512(afsenc(rd)).digest()
-    b64 = base64.urlsafe_b64encode(h).decode("ascii")[:24]
-    rd = ("%s/%s/" % (b64[:2], b64[2:4])).lower() + b64
+    dcache = th_dir_cache
+    rd_key = rd + "\n" + fmt
+    rd = dcache.get(rd_key)
+    if not rd:
+        h = hashlib.sha512(afsenc(rd_key)).digest()
+        b64 = ub64enc(h).decode("ascii")[:24]
+        rd = ("%s/%s/" % (b64[:2], b64[2:4])).lower() + b64
+        if len(dcache) > 9001:
+            dcache.clear()
+        dcache[rd_key] = rd

    # could keep original filenames but this is safer re pathlen
    h = hashlib.sha512(afsenc(fn)).digest()
-    fn = base64.urlsafe_b64encode(h).decode("ascii")[:24]
+    fn = ub64enc(h).decode("ascii")[:24]

    if fmt in ("opus", "caf", "mp3"):
        cat = "ac"
@@ -304,23 +334,31 @@ class ThumbSrv(object):
                ap_unpk = abspath

            if not bos.path.exists(tpath):
+                want_mp3 = tpath.endswith(".mp3")
+                want_opus = tpath.endswith(".opus") or tpath.endswith(".caf")
+                want_png = tpath.endswith(".png")
+                want_au = want_mp3 or want_opus
                for lib in self.args.th_dec:
+                    can_au = lib == "ff" and (
+                        ext in self.fmt_ffa or ext in self.fmt_ffv
+                    )
+
                    if lib == "pil" and ext in self.fmt_pil:
                        funs.append(self.conv_pil)
                    elif lib == "vips" and ext in self.fmt_vips:
                        funs.append(self.conv_vips)
-                    elif lib == "ff" and ext in self.fmt_ffi or ext in self.fmt_ffv:
-                        funs.append(self.conv_ffmpeg)
-                    elif lib == "ff" and ext in self.fmt_ffa:
-                        if tpath.endswith(".opus") or tpath.endswith(".caf"):
+                    elif can_au and (want_png or want_au):
+                        if want_opus:
                            funs.append(self.conv_opus)
-                        elif tpath.endswith(".mp3"):
+                        elif want_mp3:
                            funs.append(self.conv_mp3)
-                        elif tpath.endswith(".png"):
+                        elif want_png:
                            funs.append(self.conv_waves)
                            png_ok = True
-                        else:
-                            funs.append(self.conv_spec)
+                    elif lib == "ff" and (ext in self.fmt_ffi or ext in self.fmt_ffv):
+                        funs.append(self.conv_ffmpeg)
+                    elif lib == "ff" and ext in self.fmt_ffa and not want_au:
+                        funs.append(self.conv_spec)

            tdir, tfn = os.path.split(tpath)
            ttpath = os.path.join(tdir, "w", tfn)
@@ -450,7 +488,7 @@ class ThumbSrv(object):
                if c == crops[-1]:
                    raise

-        assert img  # type: ignore
+        assert img  # type: ignore  # !rm
        img.write_to_file(tpath, Q=40)

    def conv_ffmpeg(self, abspath: str, tpath: str, fmt: str, vn: VFS) -> None:
--- a/copyparty/u2idx.py
+++ b/copyparty/u2idx.py
@@ -8,7 +8,7 @@ import threading
 import time
 from operator import itemgetter

-from .__init__ import ANYWIN, TYPE_CHECKING, unicode
+from .__init__ import ANYWIN, PY2, TYPE_CHECKING, unicode
 from .authsrv import LEELOO_DALLAS, VFS
 from .bos import bos
 from .up2k import up2k_wark_from_hashlist
@@ -38,6 +38,9 @@ if True:  # pylint: disable=using-constant-test
 if TYPE_CHECKING:
    from .httpsrv import HttpSrv

+if PY2:
+    range = xrange  # type: ignore
+

 class U2idx(object):
    def __init__(self, hsrv: "HttpSrv") -> None:
@@ -56,6 +59,8 @@ class U2idx(object):
        self.mem_cur = sqlite3.connect(":memory:", check_same_thread=False).cursor()
        self.mem_cur.execute(r"create table a (b text)")

+        self.sh_cur: Optional["sqlite3.Cursor"] = None
+
        self.p_end = 0.0
        self.p_dur = 0.0

@@ -92,17 +97,31 @@ class U2idx(object):
        except:
            raise Pebkac(500, min_ex())

-    def get_cur(self, vn: VFS) -> Optional["sqlite3.Cursor"]:
-        if not HAVE_SQLITE3:
+    def get_shr(self) -> Optional["sqlite3.Cursor"]:
+        if self.sh_cur:
+            return self.sh_cur
+
+        if not HAVE_SQLITE3 or not self.args.shr:
            return None

+        assert sqlite3  # type: ignore  # !rm
+
+        db = sqlite3.connect(self.args.shr_db, timeout=2, check_same_thread=False)
+        cur = db.cursor()
+        cur.execute('pragma table_info("sh")').fetchall()
+        self.sh_cur = cur
+        return cur
+
+    def get_cur(self, vn: VFS) -> Optional["sqlite3.Cursor"]:
        cur = self.cur.get(vn.realpath)
        if cur:
            return cur

-        if "e2d" not in vn.flags:
+        if not HAVE_SQLITE3 or "e2d" not in vn.flags:
            return None

+        assert sqlite3  # type: ignore  # !rm
+
        ptop = vn.realpath
        histpath = self.asrv.vfs.histtab.get(ptop)
        if not histpath:
@@ -448,5 +467,5 @@ class U2idx(object):
                return

        if identifier == self.active_id:
-            assert self.active_cur
+            assert self.active_cur  # !rm
            self.active_cur.connection.interrupt()
--- a/copyparty/up2k.py
+++ b/copyparty/up2k.py
--- a/copyparty/util.py
+++ b/copyparty/util.py
@@ -3,7 +3,7 @@ from __future__ import print_function, unicode_literals

 import argparse
 import base64
-import contextlib
+import binascii
 import errno
 import hashlib
 import hmac
@@ -26,18 +26,14 @@ import threading
 import time
 import traceback
 from collections import Counter
-from email.utils import formatdate

 from ipaddress import IPv4Address, IPv4Network, IPv6Address, IPv6Network
 from queue import Queue

-from .__init__ import ANYWIN, EXE, MACOS, PY2, TYPE_CHECKING, VT100, WINDOWS
+from .__init__ import ANYWIN, EXE, MACOS, PY2, PY36, TYPE_CHECKING, VT100, WINDOWS
 from .__version__ import S_BUILD_DT, S_VERSION
 from .stolen import surrogateescape

-ub64dec = base64.urlsafe_b64decode
-ub64enc = base64.urlsafe_b64encode
-
 try:
    from datetime import datetime, timezone

@@ -60,8 +56,12 @@ except:
    UTC = _UTC()


+if PY2:
+    range = xrange  # type: ignore
+
+
 if sys.version_info >= (3, 7) or (
-    sys.version_info >= (3, 6) and platform.python_implementation() == "CPython"
+    PY36 and platform.python_implementation() == "CPython"
 ):
    ODict = dict
 else:
@@ -99,6 +99,9 @@ except:
    pass

 try:
+    if os.environ.get("PRTY_NO_SQLITE"):
+        raise Exception()
+
    HAVE_SQLITE3 = True
    import sqlite3

@@ -107,6 +110,9 @@ except:
    HAVE_SQLITE3 = False

 try:
+    if os.environ.get("PRTY_NO_PSUTIL"):
+        raise Exception()
+
    HAVE_PSUTIL = True
    import psutil
 except:
@@ -137,10 +143,15 @@ if TYPE_CHECKING:
    import magic

    from .authsrv import VFS
+    from .broker_util import BrokerCli
+    from .up2k import Up2k

 FAKE_MP = False

 try:
+    if os.environ.get("PRTY_NO_MP"):
+        raise ImportError()
+
    import multiprocessing as mp

    # import multiprocessing.dummy as mp
@@ -150,15 +161,14 @@ except ImportError:

 if not PY2:
    from io import BytesIO
-    from urllib.parse import quote_from_bytes as quote
-    from urllib.parse import unquote_to_bytes as unquote
 else:
    from StringIO import StringIO as BytesIO  # type: ignore
-    from urllib import quote  # type: ignore # pylint: disable=no-name-in-module
-    from urllib import unquote  # type: ignore # pylint: disable=no-name-in-module


 try:
+    if os.environ.get("PRTY_NO_IPV6"):
+        raise Exception()
+
    socket.inet_pton(socket.AF_INET6, "::1")
    HAVE_IPV6 = True
 except:
@@ -199,7 +209,7 @@ else:
    FS_ENCODING = sys.getfilesystemencoding()


-SYMTIME = sys.version_info > (3, 6) and os.utime in os.supports_follow_symlinks
+SYMTIME = PY36 and os.utime in os.supports_follow_symlinks

 META_NOBOTS = '<meta name="robots" content="noindex, nofollow">\n'

@@ -243,6 +253,8 @@ IMPLICATIONS = [
    ["e2vu", "e2v"],
    ["e2vp", "e2v"],
    ["e2v", "e2d"],
+    ["hardlink_only", "hardlink"],
+    ["hardlink", "dedup"],
    ["tftpvv", "tftpv"],
    ["smbw", "smb"],
    ["smb1", "smb"],
@@ -319,7 +331,7 @@ MAGIC_MAP = {"jpeg": "jpg"}

 DEF_EXP = "self.ip self.ua self.uname self.host cfg.name cfg.logout vf.scan vf.thsize hdr.cf_ipcountry srv.itime srv.htime"

-DEF_MTE = "circle,album,.tn,artist,title,.bpm,key,.dur,.q,.vq,.aq,vc,ac,fmt,res,.fps,ahash,vhash"
+DEF_MTE = ".files,circle,album,.tn,artist,title,.bpm,key,.dur,.q,.vq,.aq,vc,ac,fmt,res,.fps,ahash,vhash"

 DEF_MTH = ".vq,.aq,vc,ac,fmt,res,.fps"

@@ -421,7 +433,7 @@ def py_desc() -> str:


 def _sqlite_ver() -> str:
-    assert sqlite3  # type: ignore
+    assert sqlite3  # type: ignore  # !rm
    try:
        co = sqlite3.connect(":memory:")
        cur = co.cursor()
@@ -469,17 +481,36 @@ VERSIONS = (
 )


-_: Any = (mp, BytesIO, quote, unquote, SQLITE_VER, JINJA_VER, PYFTPD_VER, PARTFTPY_VER)
-__all__ = [
-    "mp",
-    "BytesIO",
-    "quote",
-    "unquote",
-    "SQLITE_VER",
-    "JINJA_VER",
-    "PYFTPD_VER",
-    "PARTFTPY_VER",
-]
+try:
+    _b64_enc_tl = bytes.maketrans(b"+/", b"-_")
+    _b64_dec_tl = bytes.maketrans(b"-_", b"+/")
+
+    def ub64enc(bs: bytes) -> bytes:
+        x = binascii.b2a_base64(bs, newline=False)
+        return x.translate(_b64_enc_tl)
+
+    def ub64dec(bs: bytes) -> bytes:
+        bs = bs.translate(_b64_dec_tl)
+        return binascii.a2b_base64(bs)
+
+    def b64enc(bs: bytes) -> bytes:
+        return binascii.b2a_base64(bs, newline=False)
+
+    def b64dec(bs: bytes) -> bytes:
+        return binascii.a2b_base64(bs)
+
+    zb = b">>>????"
+    zb2 = base64.urlsafe_b64encode(zb)
+    if zb2 != ub64enc(zb) or zb != ub64dec(zb2):
+        raise Exception("bad smoke")
+
+except Exception as ex:
+    ub64enc = base64.urlsafe_b64encode  # type: ignore
+    ub64dec = base64.urlsafe_b64decode  # type: ignore
+    b64enc = base64.b64encode  # type: ignore
+    b64dec = base64.b64decode  # type: ignore
+    if not PY36:
+        print("using fallback base64 codec due to %r" % (ex,))


 class Daemon(threading.Thread):
@@ -794,7 +825,7 @@ class CachedSet(object):

        c = self.c = {k: v for k, v in self.c.items() if now - v < self.maxage}
        try:
-            self.oldest = c[min(c, key=c.get)]
+            self.oldest = c[min(c, key=c.get)]  # type: ignore
        except:
            self.oldest = now

@@ -898,7 +929,6 @@ class ProgressPrinter(threading.Thread):
        self.msg = ""
        self.end = False
        self.n = -1
-        self.start()

    def run(self) -> None:
        sigblock()
@@ -1012,7 +1042,7 @@ class MTHash(object):
        if self.stop:
            return nch, "", ofs0, chunk_sz

-        assert f
+        assert f  # !rm
        hashobj = hashlib.sha512()
        while chunk_rem > 0:
            with self.imutex:
@@ -1027,7 +1057,7 @@ class MTHash(object):
            ofs += len(buf)

        bdig = hashobj.digest()[:33]
-        udig = base64.urlsafe_b64encode(bdig).decode("utf-8")
+        udig = ub64enc(bdig).decode("ascii")
        return nch, udig, ofs0, chunk_sz


@@ -1053,7 +1083,7 @@ class HMaccas(object):
                self.cache = {}

            zb = hmac.new(self.key, msg, hashlib.sha512).digest()
-            zs = base64.urlsafe_b64encode(zb)[: self.retlen].decode("utf-8")
+            zs = ub64enc(zb)[: self.retlen].decode("ascii")
            self.cache[msg] = zs
            return zs

@@ -1377,25 +1407,20 @@ def vol_san(vols: list["VFS"], txt: bytes) -> bytes:
 def min_ex(max_lines: int = 8, reverse: bool = False) -> str:
    et, ev, tb = sys.exc_info()
    stb = traceback.extract_tb(tb) if tb else traceback.extract_stack()[:-1]
-    fmt = "%s @ %d <%s>: %s"
+    fmt = "%s:%d <%s>: %s"
    ex = [fmt % (fp.split(os.sep)[-1], ln, fun, txt) for fp, ln, fun, txt in stb]
    if et or ev or tb:
        ex.append("[%s] %s" % (et.__name__ if et else "(anonymous)", ev))
    return "\n".join(ex[-max_lines:][:: -1 if reverse else 1])


-@contextlib.contextmanager
-def ren_open(
-    fname: str, *args: Any, **kwargs: Any
-) -> Generator[dict[str, tuple[typing.IO[Any], str]], None, None]:
+def ren_open(fname: str, *args: Any, **kwargs: Any) -> tuple[typing.IO[Any], str]:
    fun = kwargs.pop("fun", open)
    fdir = kwargs.pop("fdir", None)
    suffix = kwargs.pop("suffix", None)

    if fname == os.devnull:
-        with fun(fname, *args, **kwargs) as f:
-            yield {"orz": (f, fname)}
-            return
+        return fun(fname, *args, **kwargs), fname

    if suffix:
        ext = fname.split(".")[-1]
@@ -1417,6 +1442,7 @@ def ren_open(
    asciified = False
    b64 = ""
    while True:
+        f = None
        try:
            if fdir:
                fpath = os.path.join(fdir, fname)
@@ -1428,19 +1454,20 @@ def ren_open(
                fname += suffix
                ext += suffix

-            with fun(fsenc(fpath), *args, **kwargs) as f:
-                if b64:
-                    assert fdir
-                    fp2 = "fn-trunc.%s.txt" % (b64,)
-                    fp2 = os.path.join(fdir, fp2)
-                    with open(fsenc(fp2), "wb") as f2:
-                        f2.write(orig_name.encode("utf-8"))
+            f = fun(fsenc(fpath), *args, **kwargs)
+            if b64:
+                assert fdir  # !rm
+                fp2 = "fn-trunc.%s.txt" % (b64,)
+                fp2 = os.path.join(fdir, fp2)
+                with open(fsenc(fp2), "wb") as f2:
+                    f2.write(orig_name.encode("utf-8"))

-                yield {"orz": (f, fname)}
-                return
+            return f, fname

        except OSError as ex_:
            ex = ex_
+            if f:
+                f.close()

            # EPERM: android13
            if ex.errno in (errno.EINVAL, errno.EPERM) and not asciified:
@@ -1461,8 +1488,7 @@ def ren_open(

        if not b64:
            zs = ("%s\n%s" % (orig_name, suffix)).encode("utf-8", "replace")
-            zs = hashlib.sha512(zs).digest()[:12]
-            b64 = base64.urlsafe_b64encode(zs).decode("utf-8")
+            b64 = ub64enc(hashlib.sha512(zs).digest()[:12]).decode("ascii")

        badlen = len(fname)
        while len(fname) >= badlen:
@@ -1695,7 +1721,7 @@ class MultipartParser(object):
        returns the value of the next field in the multipart body,
        raises if the field name is not as expected
        """
-        assert self.gen
+        assert self.gen  # !rm
        p_field, p_fname, p_data = next(self.gen)
        if p_field != field_name:
            raise WrongPostKey(field_name, p_field, p_fname, p_data)
@@ -1704,7 +1730,7 @@ class MultipartParser(object):

    def drop(self) -> None:
        """discards the remaining multipart body"""
-        assert self.gen
+        assert self.gen  # !rm
        for _, _, data in self.gen:
            for _ in data:
                pass
@@ -1743,7 +1769,7 @@ def read_header(sr: Unrecv, t_idle: int, t_tot: int) -> list[str]:

        ofs = ret.find(b"\r\n\r\n")
        if ofs < 0:
-            if len(ret) > 1024 * 64:
+            if len(ret) > 1024 * 32:
                raise Pebkac(400, "header 2big")
            else:
                continue
@@ -1768,9 +1794,8 @@ def rand_name(fdir: str, fn: str, rnd: int) -> str:

            nc = rnd + extra
            nb = (6 + 6 * nc) // 8
-            zb = os.urandom(nb)
-            zb = base64.urlsafe_b64encode(zb)
-            fn = zb[:nc].decode("utf-8") + ext
+            zb = ub64enc(os.urandom(nb))
+            fn = zb[:nc].decode("ascii") + ext
            ok = not os.path.exists(fsenc(os.path.join(fdir, fn)))

    return fn
@@ -1783,7 +1808,7 @@ def gen_filekey(alg: int, salt: str, fspath: str, fsize: int, inode: int) -> str
        zs = "%s %s" % (salt, fspath)

    zb = zs.encode("utf-8", "replace")
-    return base64.urlsafe_b64encode(hashlib.sha512(zb).digest()).decode("ascii")
+    return ub64enc(hashlib.sha512(zb).digest()).decode("ascii")


 def gen_filekey_dbg(
@@ -1797,7 +1822,7 @@ def gen_filekey_dbg(
 ) -> str:
    ret = gen_filekey(alg, salt, fspath, fsize, inode)

-    assert log_ptn
+    assert log_ptn  # !rm
    if log_ptn.search(fspath):
        try:
            import inspect
@@ -1821,10 +1846,21 @@ def gen_filekey_dbg(
    return ret


+WKDAYS = "Mon Tue Wed Thu Fri Sat Sun".split()
+MONTHS = "Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec".split()
+RFC2822 = "%s, %02d %s %04d %02d:%02d:%02d GMT"
+
+
+def formatdate(ts: Optional[float] = None) -> str:
+    # gmtime ~= datetime.fromtimestamp(ts, UTC).timetuple()
+    y, mo, d, h, mi, s, wd, _, _ = time.gmtime(ts)
+    return RFC2822 % (WKDAYS[wd], d, MONTHS[mo - 1], y, h, mi, s)
+
+
 def gencookie(k: str, v: str, r: str, tls: bool, dur: int = 0, txt: str = "") -> str:
    v = v.replace("%", "%25").replace(";", "%3B")
    if dur:
-        exp = formatdate(time.time() + dur, usegmt=True)
+        exp = formatdate(time.time() + dur)
    else:
        exp = "Fri, 15 Aug 1997 01:00:00 GMT"

@@ -1839,12 +1875,10 @@ def humansize(sz: float, terse: bool = False) -> str:

        sz /= 1024.0

-    ret = " ".join([str(sz)[:4].rstrip("."), unit])
-
-    if not terse:
-        return ret
-
-    return ret.replace("iB", "").replace(" ", "")
+    if terse:
+        return "%s%s" % (str(sz)[:4].rstrip("."), unit[:1])
+    else:
+        return "%s %s" % (str(sz)[:4].rstrip("."), unit)


 def unhumanize(sz: str) -> int:
@@ -1896,7 +1930,7 @@ def uncyg(path: str) -> str:
 def undot(path: str) -> str:
    ret: list[str] = []
    for node in path.split("/"):
-        if node in ["", "."]:
+        if node == "." or not node:
            continue

        if node == "..":
@@ -2047,25 +2081,70 @@ def html_bescape(s: bytes, quot: bool = False, crlf: bool = False) -> bytes:

 def _quotep2(txt: str) -> str:
    """url quoter which deals with bytes correctly"""
+    if not txt:
+        return ""
    btxt = w8enc(txt)
    quot = quote(btxt, safe=b"/")
-    return w8dec(quot.replace(b" ", b"+"))
+    return w8dec(quot.replace(b" ", b"+"))  # type: ignore


 def _quotep3(txt: str) -> str:
    """url quoter which deals with bytes correctly"""
+    if not txt:
+        return ""
    btxt = w8enc(txt)
    quot = quote(btxt, safe=b"/").encode("utf-8")
    return w8dec(quot.replace(b" ", b"+"))


-quotep = _quotep3 if not PY2 else _quotep2
+if not PY2:
+    _uqsb = b"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_.-~/"
+    _uqtl = {
+        n: ("%%%02X" % (n,) if n not in _uqsb else chr(n)).encode("utf-8")
+        for n in range(256)
+    }
+    _uqtl[b" "] = b"+"
+
+    def _quotep3b(txt: str) -> str:
+        """url quoter which deals with bytes correctly"""
+        if not txt:
+            return ""
+        btxt = w8enc(txt)
+        if btxt.rstrip(_uqsb):
+            lut = _uqtl
+            btxt = b"".join([lut[ch] for ch in btxt])
+        return w8dec(btxt)
+
+    quotep = _quotep3b
+
+    _hexd = "0123456789ABCDEFabcdef"
+    _hex2b = {(a + b).encode(): bytes.fromhex(a + b) for a in _hexd for b in _hexd}
+
+    def unquote(btxt: bytes) -> bytes:
+        h2b = _hex2b
+        parts = iter(btxt.split(b"%"))
+        ret = [next(parts)]
+        for item in parts:
+            c = h2b.get(item[:2])
+            if c is None:
+                ret.append(b"%")
+                ret.append(item)
+            else:
+                ret.append(c)
+                ret.append(item[2:])
+        return b"".join(ret)
+
+    from urllib.parse import quote_from_bytes as quote
+else:
+    from urllib import quote  # type: ignore # pylint: disable=no-name-in-module
+    from urllib import unquote  # type: ignore # pylint: disable=no-name-in-module
+
+    quotep = _quotep2


 def unquotep(txt: str) -> str:
    """url unquoter which deals with bytes correctly"""
    btxt = w8enc(txt)
-    # btxt = btxt.replace(b"+", b" ")
    unq2 = unquote(btxt)
    return w8dec(unq2)

@@ -2093,6 +2172,72 @@ def ujoin(rd: str, fn: str) -> str:
        return rd or fn


+def log_reloc(
+    log: "NamedLogger",
+    re: dict[str, str],
+    pm: tuple[str, str, str, tuple["VFS", str]],
+    ap: str,
+    vp: str,
+    fn: str,
+    vn: "VFS",
+    rem: str,
+) -> None:
+    nap, nvp, nfn, (nvn, nrem) = pm
+    t = "reloc %s:\nold ap [%s]\nnew ap [%s\033[36m/%s\033[0m]\nold vp [%s]\nnew vp [%s\033[36m/%s\033[0m]\nold fn [%s]\nnew fn [%s]\nold vfs [%s]\nnew vfs [%s]\nold rem [%s]\nnew rem [%s]"
+    log(t % (re, ap, nap, nfn, vp, nvp, nfn, fn, nfn, vn.vpath, nvn.vpath, rem, nrem))
+
+
+def pathmod(
+    vfs: "VFS", ap: str, vp: str, mod: dict[str, str]
+) -> Optional[tuple[str, str, str, tuple["VFS", str]]]:
+    # vfs: authsrv.vfs
+    # ap: original abspath to a file
+    # vp: original urlpath to a file
+    # mod: modification (ap/vp/fn)
+
+    nvp = "\n"  # new vpath
+    ap = os.path.dirname(ap)
+    vp, fn = vsplit(vp)
+    if mod.get("fn"):
+        fn = mod["fn"]
+        nvp = vp
+
+    for ref, k in ((ap, "ap"), (vp, "vp")):
+        if k not in mod:
+            continue
+
+        ms = mod[k].replace(os.sep, "/")
+        if ms.startswith("/"):
+            np = ms
+        elif k == "vp":
+            np = undot(vjoin(ref, ms))
+        else:
+            np = os.path.abspath(os.path.join(ref, ms))
+
+        if k == "vp":
+            nvp = np.lstrip("/")
+            continue
+
+        # try to map abspath to vpath
+        np = np.replace("/", os.sep)
+        for vn_ap, vn in vfs.all_aps:
+            if not np.startswith(vn_ap):
+                continue
+            zs = np[len(vn_ap) :].replace(os.sep, "/")
+            nvp = vjoin(vn.vpath, zs)
+            break
+
+    if nvp == "\n":
+        return None
+
+    vn, rem = vfs.get(nvp, "*", False, False)
+    if not vn.realpath:
+        raise Exception("unmapped vfs")
+
+    ap = vn.canonical(rem)
+    return ap, nvp, fn, (vn, rem)
+
+
 def _w8dec2(txt: bytes) -> str:
    """decodes filesystem-bytes to wtf8"""
    return surrogateescape.decodefilename(txt)
@@ -2145,12 +2290,12 @@ w8enc = _w8enc3 if not PY2 else _w8enc2

 def w8b64dec(txt: str) -> str:
    """decodes base64(filesystem-bytes) to wtf8"""
-    return w8dec(base64.urlsafe_b64decode(txt.encode("ascii")))
+    return w8dec(ub64dec(txt.encode("ascii")))


 def w8b64enc(txt: str) -> str:
    """encodes wtf8 to base64(filesystem-bytes)"""
-    return base64.urlsafe_b64encode(w8enc(txt)).decode("ascii")
+    return ub64enc(w8enc(txt)).decode("ascii")


 if not PY2 and WINDOWS:
@@ -2308,7 +2453,7 @@ def wunlink(log: "NamedLogger", abspath: str, flags: dict[str, Any]) -> bool:
 def get_df(abspath: str) -> tuple[Optional[int], Optional[int]]:
    try:
        # some fuses misbehave
-        assert ctypes
+        assert ctypes  # type: ignore  # !rm
        if ANYWIN:
            bfree = ctypes.c_ulonglong(0)
            ctypes.windll.kernel32.GetDiskFreeSpaceExW(  # type: ignore
@@ -2526,8 +2671,7 @@ def hashcopy(
        if slp:
            time.sleep(slp)

-    digest = hashobj.digest()[:33]
-    digest_b64 = base64.urlsafe_b64encode(digest).decode("utf-8")
+    digest_b64 = ub64enc(hashobj.digest()[:33]).decode("ascii")

    return tlen, hashobj.hexdigest(), digest_b64

@@ -2709,30 +2853,30 @@ def rmdirs_up(top: str, stop: str) -> tuple[list[str], list[str]]:

 def unescape_cookie(orig: str) -> str:
    # mw=idk; doot=qwe%2Crty%3Basd+fgh%2Bjkl%25zxc%26vbn  # qwe,rty;asd fgh+jkl%zxc&vbn
-    ret = ""
+    ret = []
    esc = ""
    for ch in orig:
        if ch == "%":
-            if len(esc) > 0:
-                ret += esc
+            if esc:
+                ret.append(esc)
            esc = ch

-        elif len(esc) > 0:
+        elif esc:
            esc += ch
            if len(esc) == 3:
                try:
-                    ret += chr(int(esc[1:], 16))
+                    ret.append(chr(int(esc[1:], 16)))
                except:
-                    ret += esc
+                    ret.append(esc)
                esc = ""

        else:
-            ret += ch
+            ret.append(ch)

-    if len(esc) > 0:
-        ret += esc
+    if esc:
+        ret.append(esc)

-    return ret
+    return "".join(ret)


 def guess_mime(url: str, fallback: str = "application/octet-stream") -> str:
@@ -2767,7 +2911,7 @@ def getalive(pids: list[int], pgid: int) -> list[int]:
                    alive.append(pid)
            else:
                # windows doesn't have pgroups; assume
-                assert psutil
+                assert psutil  # type: ignore  # !rm
                psutil.Process(pid)
                alive.append(pid)
        except:
@@ -2785,7 +2929,7 @@ def killtree(root: int) -> None:
        pgid = 0

    if HAVE_PSUTIL:
-        assert psutil
+        assert psutil  # type: ignore  # !rm
        pids = [root]
        parent = psutil.Process(root)
        for child in parent.children(recursive=True):
@@ -3106,6 +3250,7 @@ def runihook(

 def _runhook(
    log: Optional["NamedLogger"],
+    src: str,
    cmd: str,
    ap: str,
    vp: str,
@@ -3117,14 +3262,16 @@ def _runhook(
    ip: str,
    at: float,
    txt: str,
-) -> bool:
+) -> dict[str, Any]:
+    ret = {"rc": 0}
    areq, chk, fork, jtxt, wait, sp_ka, acmd = _parsehook(log, cmd)
    if areq:
        for ch in areq:
            if ch not in perms:
                t = "user %s not allowed to run hook %s; need perms %s, have %s"
-                log(t % (uname, cmd, areq, perms))
-                return True  # fallthrough to next hook
+                if log:
+                    log(t % (uname, cmd, areq, perms))
+                return ret  # fallthrough to next hook
    if jtxt:
        ja = {
            "ap": ap,
@@ -3136,6 +3283,7 @@ def _runhook(
            "host": host,
            "user": uname,
            "perms": perms,
+            "src": src,
            "txt": txt,
        }
        arg = json.dumps(ja)
@@ -3154,18 +3302,34 @@ def _runhook(
    else:
        rc, v, err = runcmd(bcmd, **sp_ka)  # type: ignore
        if chk and rc:
+            ret["rc"] = rc
            retchk(rc, bcmd, err, log, 5)
-            return False
+        else:
+            try:
+                ret = json.loads(v)
+            except:
+                ret = {}
+
+            try:
+                if "stdout" not in ret:
+                    ret["stdout"] = v
+                if "rc" not in ret:
+                    ret["rc"] = rc
+            except:
+                ret = {"rc": rc, "stdout": v}

    wait -= time.time() - t0
    if wait > 0:
        time.sleep(wait)

-    return True
+    return ret


 def runhook(
    log: Optional["NamedLogger"],
+    broker: Optional["BrokerCli"],
+    up2k: Optional["Up2k"],
+    src: str,
    cmds: list[str],
    ap: str,
    vp: str,
@@ -3177,19 +3341,42 @@ def runhook(
    ip: str,
    at: float,
    txt: str,
-) -> bool:
+) -> dict[str, Any]:
+    assert broker or up2k  # !rm
+    asrv = (broker or up2k).asrv
+    args = (broker or up2k).args
    vp = vp.replace("\\", "/")
+    ret = {"rc": 0}
    for cmd in cmds:
        try:
-            if not _runhook(log, cmd, ap, vp, host, uname, perms, mt, sz, ip, at, txt):
-                return False
+            hr = _runhook(
+                log, src, cmd, ap, vp, host, uname, perms, mt, sz, ip, at, txt
+            )
+            if log and args.hook_v:
+                log("hook(%s) [%s] => \033[32m%s" % (src, cmd, hr), 6)
+            if not hr:
+                return {}
+            for k, v in hr.items():
+                if k in ("idx", "del") and v:
+                    if broker:
+                        broker.say("up2k.hook_fx", k, v, vp)
+                    else:
+                        up2k.fx_backlog.append((k, v, vp))
+                elif k == "reloc" and v:
+                    # idk, just take the last one ig
+                    ret["reloc"] = v
+                elif k in ret:
+                    if k == "rc" and v:
+                        ret[k] = v
+                else:
+                    ret[k] = v
        except Exception as ex:
            (log or print)("hook: {}".format(ex))
            if ",c," in "," + cmd:
-                return False
+                return {}
            break

-    return True
+    return ret


 def loadpy(ap: str, hot: bool) -> Any:
@@ -3349,7 +3536,7 @@ def termsize() -> tuple[int, int]:
 def hidedir(dp) -> None:
    if ANYWIN:
        try:
-            assert ctypes
+            assert ctypes  # type: ignore  # !rm
            k32 = ctypes.WinDLL("kernel32")
            attrs = k32.GetFileAttributesW(dp)
            if attrs >= 0:
@@ -3385,3 +3572,16 @@ class WrongPostKey(Pebkac):
        self.got = got
        self.fname = fname
        self.datagen = datagen
+
+
+_: Any = (mp, BytesIO, quote, unquote, SQLITE_VER, JINJA_VER, PYFTPD_VER, PARTFTPY_VER)
+__all__ = [
+    "mp",
+    "BytesIO",
+    "quote",
+    "unquote",
+    "SQLITE_VER",
+    "JINJA_VER",
+    "PYFTPD_VER",
+    "PARTFTPY_VER",
+]
--- a/copyparty/web/baguettebox.js
+++ b/copyparty/web/baguettebox.js
@@ -29,6 +29,7 @@ window.baguetteBox = (function () {
        isOverlayVisible = false,
        touch = {},  // start-pos
        touchFlag = false,  // busy
+        scrollCSS = ['', ''],
        scrollTimer = 0,
        re_i = /^[^?]+\.(a?png|avif|bmp|gif|heif|jpe?g|jfif|svg|webp)(\?|$)/i,
        re_v = /^[^?]+\.(webm|mkv|mp4)(\?|$)/i,
@@ -567,6 +568,12 @@ window.baguetteBox = (function () {

    function showOverlay(chosenImageIndex) {
        if (options.noScrollbars) {
+            var a = document.documentElement.style.overflowY,
+                b = document.body.style.overflowY;
+
+            if (a != 'hidden' || b != 'scroll')
+                scrollCSS = [a, b];
+
            document.documentElement.style.overflowY = 'hidden';
            document.body.style.overflowY = 'scroll';
        }
@@ -615,8 +622,8 @@ window.baguetteBox = (function () {
        playvid(false);
        removeFromCache('#files');
        if (options.noScrollbars) {
-            document.documentElement.style.overflowY = 'auto';
-            document.body.style.overflowY = 'auto';
+            document.documentElement.style.overflowY = scrollCSS[0];
+            document.body.style.overflowY = scrollCSS[1];
        }

        try {
@@ -1060,7 +1067,7 @@ window.baguetteBox = (function () {
                return showNextImage();

            show_buttons('t');
-            
+
            if (Date.now() - ctime <= 500 && !IPHONE)
                tglfull();

--- a/copyparty/web/browser.css
+++ b/copyparty/web/browser.css
@@ -10,7 +10,6 @@
 	--fg2-max: #fff;
 	--fg-weak: #bbb;

-	--bg-u7: #555;
 	--bg-u6: #4c4c4c;
 	--bg-u5: #444;
 	--bg-u4: #383838;
@@ -43,8 +42,14 @@
 	--btn-h-bg: #805;
 	--btn-1-fg: #400;
 	--btn-1-bg: var(--a);
+	--btn-h-bs: var(--btn-bs);
+	--btn-h-bb: var(--btn-bb);
+	--btn-1-bs: var(--btn-bs);
+	--btn-1-bb: var(--btn-bb);
 	--btn-1h-fg: var(--btn-1-fg);
 	--btn-1h-bg: #fe8;
+	--btn-1h-bs: var(--btn-1-bs);
+	--btn-1h-bb: var(--btn-1-bb);
 	--chk-fg: var(--tab-alt);
 	--txt-sh: var(--bg-d2);
 	--txt-bg: var(--btn-bg);
@@ -59,7 +64,7 @@
 	--u2-tab-bg: linear-gradient(to bottom, var(--bg), var(--bg-u1));
 	--u2-tab-b1: rgba(128,128,128,0.8);
 	--u2-tab-1-fg: #fd7;
-	--u2-tab-1-bg: linear-gradient(to bottom, var(#353), var(--bg) 80%);
+	--u2-tab-1-bg: linear-gradient(to bottom, #353, var(--bg) 80%);
 	--u2-tab-1-b1: #7c5;
 	--u2-tab-1-b2: #583;
 	--u2-tab-1-sh: #280;
@@ -212,22 +217,19 @@ html.y {
 html.a {
 	--op-aa-sh: 0 0 .2em var(--bg-d3) inset;

-	--u2-o-bg: #603;
-	--u2-o-b1: #a16;
-	--u2-o-sh: #a00;
-	--u2-o-h-bg: var(--u2-o-bg);
-	--u2-o-h-b1: #fb0;
-	--u2-o-h-sh: #fb0;
-	--u2-o-1-bg: #6a1;
-	--u2-o-1-b1: #efa;
-	--u2-o-1-sh: #0c0;
-	--u2-o-1h-bg: var(--u2-o-1-bg);
+	--btn-bs: 0 0 .2em var(--bg-d3);
+}
+html.az {
+	--btn-1-bs: 0 0 .1em var(--fg) inset;
 }
 html.ay {
 	--op-aa-sh: 0 .1em .2em #ccc;
 	--op-aa-bg: var(--bg-max);
 }
 html.b {
+	--btn-bs: 0 .05em 0 var(--bg-d3) inset;
+	--btn-1-bs: 0 .05em 0 var(--btn-1h-bg) inset;
+
 	--tree-bg: var(--bg);

 	--g-bg: var(--bg);
@@ -244,17 +246,13 @@ html.b {
 	--u2-b1-bg: rgba(128,128,128,0.15);
 	--u2-b2-bg: var(--u2-b1-bg);

-	--u2-o-bg: var(--btn-bg);
-	--u2-o-h-bg: var(--btn-h-bg);
-	--u2-o-1-bg: var(--a);
-	--u2-o-1h-bg: var(--a-hil);
-
 	--f-sh1: 0.1;
 	--mp-b-bg: transparent;
 }
 html.bz {
 	--fg: #cce;
 	--fg-weak: #bbd;
+
 	--bg-u5: #3b3f58;
 	--bg-u4: #1e2130;
 	--bg-u3: #1e2130;
@@ -266,12 +264,14 @@ html.bz {

 	--row-alt: #181a27;

+	--a-b: #fb4;
+
 	--btn-bg: #202231;
 	--btn-h-bg: #2d2f45;
-	--btn-1-bg: #ba2959;
-	--btn-1-is: #f59;
-	--btn-1-fg: #fff;
+	--btn-1-bg: #eb6;
+	--btn-1-fg: #000;
 	--btn-1h-fg: #000;
+	--btn-1h-bg: #ff9;
 	--txt-sh: a;

 	--u2-tab-b1: var(--bg-u5);
@@ -306,6 +306,7 @@ html.by {
 }
 html.c {
 	font-weight: bold;
+
 	--fg: #fff;
 	--fg-weak: #cef;
 	--bg-u5: #409;
@@ -326,17 +327,25 @@ html.c {
 	--chk-fg: #d90;

 	--op-aa-bg: #f9dd22;
-	--u2-o-1-bg: #4cf;

 	--srv-1: #ea0;
 	--mp-b-bg: transparent;
 }
 html.cz {
 	--bgg: var(--bg-u2);
+
 	--sel-bg: var(--bg-u5);
 	--sel-fg: var(--fg);
+
+	--btn-bb: .2em solid #709;
+	--btn-bs: 0 .1em .6em rgba(255,0,185,0.5);
+	--btn-1-bb: .2em solid #e90;
+	--btn-1-bs: 0 .1em .8em rgba(255,205,0,0.9);
+
 	--srv-3: #fff;
+
 	--u2-tab-b1: var(--bg-d3);
+	--u2-tab-1-bg: a;
 }
 html.cy {
 	--fg: #fff;
@@ -363,16 +372,20 @@ html.cy {
 	--btn-h-fg: #fff;
 	--btn-1-bg: #ff0;
 	--btn-1-fg: #000;
+	--btn-bs: 0 .25em 0 #f00;
 	--chk-fg: #fd0;

+	--txt-bg: #000;
 	--srv-1: #f00;
 	--srv-3: #fff;
 	--op-aa-bg: #fff;

 	--u2-b1-bg: #f00;
 	--u2-b2-bg: #f00;
-	--u2-o-bg: #ff0;
-	--u2-o-1-bg: #f00;
+
+	--g-sel-fg: #fff;
+	--g-sel-bg: #aaa;
+	--g-fsel-bg: #aaa;
 }
 html.dz {
 	--fg: #4d4;
@@ -380,7 +393,6 @@ html.dz {
 	--fg2-max: #fff;
 	--fg-weak: #2a2;

-	--bg-u7: #020;
 	--bg-u6: #020;
 	--bg-u5: #050;
 	--bg-u4: #020;
@@ -413,6 +425,9 @@ html.dz {
 	--btn-1-bg: #4f4;
 	--btn-1h-fg: var(--btn-1-fg);
 	--btn-1h-bg: #3f3;
+	--btn-bs: 0 0 0 .1em #080 inset;
+	--btn-1-bs: a;
+
 	--chk-fg: var(--tab-alt);
 	--txt-sh: var(--bg-d2);
 	--txt-bg: var(--btn-bg);
@@ -427,19 +442,13 @@ html.dz {
 	--u2-tab-bg: linear-gradient(to bottom, var(--bg), var(--bg-u1));
 	--u2-tab-b1: var(--fg-weak);
 	--u2-tab-1-fg: #fff;
-	--u2-tab-1-bg: linear-gradient(to bottom, var(#353), var(--bg) 80%);
+	--u2-tab-1-bg: linear-gradient(to bottom, #151, var(--bg) 80%);
 	--u2-tab-1-b1: #7c5;
 	--u2-tab-1-b2: #583;
 	--u2-tab-1-sh: #280;
 	--u2-b-fg: #fff;
 	--u2-b1-bg: #3a3;
 	--u2-b2-bg: #3a3;
-	--u2-o-bg: var(--btn-bg);
-	--u2-o-b1: var(--bg-u5);
-	--u2-o-h-bg: var(--fg-weak);
-	--u2-o-1-bg: var(--fg-weak);
-	--u2-o-1-b1: var(--a);
-	--u2-o-1h-bg: var(--a);
 	--u2-inf-bg: #07a;
 	--u2-inf-b1: #0be;
 	--u2-ok-bg: #380;
@@ -551,10 +560,6 @@ html.dy {
 	--u2-tab-1-bg: a;
 	--u2-b1-bg: #000;
 	--u2-b2-bg: #000;
-	--u2-o-h-bg: #999;
-	--u2-o-1h-bg: #999;
-	--u2-o-bg: #eee;
-	--u2-o-1-bg: #000;

 	--ud-b1: a;

@@ -599,7 +604,7 @@ html.dy {
 	background: var(--sel-bg);
 	text-shadow: none;
 }
-html,body,tr,th,td,#files,a {
+html,body,tr,th,td,#files,a,#blogout {
 	color: inherit;
 	background: none;
 	font-weight: inherit;
@@ -627,6 +632,7 @@ pre, code, tt, #doc, #doc>code {
 	overflow: hidden;
 	width: 0;
 	height: 0;
+	color: var(--bg);
 }
 html .ayjump:focus {
 	z-index: 80386;
@@ -681,11 +687,15 @@ html.y #path {
 #files tbody div a {
 	color: var(--tab-alt);
 }
-a, #files tbody div a:last-child {
+a, #blogout, #files tbody div a:last-child {
 	color: var(--a);
 	padding: .2em;
 	text-decoration: none;
 }
+#blogout {
+	margin: -.2em;
+}
+#blogout:hover,
 a:hover {
 	color: var(--a-hil);
 	background: var(--a-h-bg);
@@ -929,6 +939,9 @@ html.y #path a:hover {
 	color: var(--srv-3);
 	border-bottom: 1px solid var(--srv-3b);
 }
+#flogout {
+	display: inline;
+}
 #goh+span {
 	color: var(--bg-u5);
 	padding-left: .5em;
@@ -963,6 +976,8 @@ html.y #path a:hover {
 #files tbody tr.play a:hover {
 	color: var(--btn-1h-fg);
 	background: var(--btn-1h-bg);
+	box-shadow: var(--btn-1h-bs);
+	border-bottom: var(--btn-1h-bb);
 }
 #ggrid {
 	margin: -.2em -.5em;
@@ -971,6 +986,7 @@ html.y #path a:hover {
 	overflow: hidden;
 	display: block;
 	display: -webkit-box;
+	line-clamp: var(--grid-ln);
 	-webkit-line-clamp: var(--grid-ln);
 	-webkit-box-orient: vertical;
 	padding-top: .3em;
@@ -1017,9 +1033,6 @@ html.y #path a:hover {
 	color: var(--g-dfg);
 }
 #ggrid>a.au:before {
-	content: '💾';
-}
-html.np_open #ggrid>a.au:before {
 	content: '▶';
 }
 #ggrid>a:before {
@@ -1148,6 +1161,7 @@ html.y #widget.open {
 	width: 100%;
 	height: 100%;
 }
+#fshr,
 #wtgrid,
 #wtico {
 	position: relative;
@@ -1334,6 +1348,7 @@ html.y #widget.open {
 #widget.cmp #wtoggle {
 	font-size: 1.2em;
 }
+#widget.cmp #fshr,
 #widget.cmp #wtgrid {
 	display: none;
 }
@@ -1434,7 +1449,11 @@ input[type="checkbox"]+label {
 input[type="radio"]:checked+label,
 input[type="checkbox"]:checked+label {
 	color: #0e0;
-	color: var(--a);
+	color: var(--btn-1-bg);
+}
+input[type="checkbox"]:checked+label {
+	box-shadow: var(--btn-1-bs);
+	border-bottom: var(--btn-1-bb);
 }
 html.dz input {
 	font-family: 'scp', monospace, monospace;
@@ -1612,6 +1631,8 @@ html {
 	color: var(--btn-fg);
 	background: #eee;
 	background: var(--btn-bg);
+	box-shadow: var(--btn-bs);
+	border-bottom: var(--btn-bb);
 	border-radius: .3em;
 	padding: .2em .4em;
 	font-size: 1.2em;
@@ -1625,20 +1646,14 @@ html.c .btn,
 html.a .btn {
 	border-radius: .2em;
 }
-html.cz .btn {
-	box-shadow: 0 .1em .6em rgba(255,0,185,0.5);
-	border-bottom: .2em solid #709;
-}
 html.dz .btn {
 	font-size: 1em;
-	box-shadow: 0 0 0 .1em #080 inset;
-}
-html.dz .tgl.btn.on {
-	box-shadow: 0 0 0 .1em var(--btn-1-bg) inset;
 }
 .btn:hover {
 	color: var(--btn-h-fg);
 	background: var(--btn-h-bg);
+	box-shadow: var(--btn-h-bs);
+	border-bottom: var(--btn-h-bb);
 }
 .tgl.btn.on {
 	background: #000;
@@ -1646,14 +1661,14 @@ html.dz .tgl.btn.on {
 	color: #fff;
 	color: var(--btn-1-fg);
 	text-shadow: none;
-}
-html.cz .tgl.btn.on {
-	box-shadow: 0 .1em .8em rgba(255,205,0,0.9);
-	border-bottom: .2em solid #e90;
+	box-shadow: var(--btn-1-bs);
+	border-bottom: var(--btn-1-bb);
 }
 .tgl.btn.on:hover {
-	background: var(--btn-1h-bg);
 	color: var(--btn-1h-fg);
+	background: var(--btn-1h-bg);
+	box-shadow: var(--btn-1h-bs);
+	border-bottom: var(--btn-1h-bb);
 }
 #detree {
 	padding: .3em .5em;
@@ -1858,6 +1873,7 @@ html.y #tree.nowrap .ntree a+a:hover {
 #unpost td:nth-child(4) {
 	text-align: right;
 }
+#shui,
 #rui {
 	background: #fff;
 	background: var(--bg);
@@ -1873,13 +1889,25 @@ html.y #tree.nowrap .ntree a+a:hover {
 	padding: 1em;
 	z-index: 765;
 }
+#shui div+div,
 #rui div+div {
 	margin-top: 1em;
 }
+#shui table,
 #rui table {
 	width: 100%;
 	border-collapse: collapse;
 }
+#shui button {
+	margin: 0 1em 0 0;
+}
+#shui .btn {
+	font-size: 1em;
+}
+#shui td {
+	padding: .8em 0;
+}
+#shui td+td,
 #rui td+td {
 	padding: .2em 0 .2em .5em;
 }
@@ -1887,10 +1915,15 @@ html.y #tree.nowrap .ntree a+a:hover {
 	font-family: 'scp', monospace, monospace;
 	font-family: var(--font-mono), 'scp', monospace, monospace;
 }
+#shui td+td,
 #rui td+td,
+#shui td input[type="text"],
 #rui td input[type="text"] {
 	width: 100%;
 }
+#shui td.exs input[type="text"] {
+	width: 3em;
+}
 #rn_f.m td:first-child {
 	white-space: nowrap;
 }
@@ -2685,23 +2718,25 @@ html.b #u2conf a.b:hover {
 #u2conf input[type="checkbox"]:checked+label {
 	position: relative;
 	cursor: pointer;
-	background: var(--u2-o-bg);
-	border-bottom: .2em solid var(--u2-o-b1);
-	box-shadow: 0 .1em .3em var(--u2-o-sh) inset;
+	background: var(--btn-bg);
+	box-shadow: var(--btn-bs);
+	border-bottom: var(--btn-bb);
 	text-shadow: 1px 1px 1px #000, 1px -1px 1px #000, -1px -1px 1px #000, -1px 1px 1px #000;
 }
 #u2conf input[type="checkbox"]:checked+label {
-	background: var(--u2-o-1-bg);
-	border-bottom: .2em solid var(--u2-o-1-b1);
-	box-shadow: 0 .1em .5em var(--u2-o-1-sh);
+	background: var(--btn-1-bg);
+	box-shadow: var(--btn-1-bs);
+	border-bottom: var(--btn-1-bb);
 }
 #u2conf input[type="checkbox"]+label:hover {
-	box-shadow: 0 .1em .3em var(--u2-o-h-sh);
-	border-color: var(--u2-o-h-b1);
-	background: var(--u2-o-h-bg);
+	background: var(--btn-h-bg);
+	box-shadow: var(--btn-h-bs);
+	border-bottom: var(--btn-h-bb);
 }
 #u2conf input[type="checkbox"]:checked+label:hover {
-	background: var(--u2-o-1h-bg);
+	background: var(--btn-1h-bg);
+	box-shadow: var(--btn-1h-bs);
+	border-bottom: var(--btn-1h-bb);
 }
 #op_up2k.srch #u2conf td:nth-child(2)>*,
 #op_up2k.srch #u2conf td:nth-child(3)>* {
@@ -3061,14 +3096,6 @@ html.b #ggrid>a {
 html.b .btn {
 	top: -.1em;
 }
-html.b .btn,
-html.b #u2conf a.b,
-html.b #u2conf input[type="checkbox"]:not(:checked)+label {
-	box-shadow: 0 .05em 0 var(--bg-d3) inset;
-}
-html.b .tgl.btn.on {
-	box-shadow: 0 .05em 0 var(--btn-1-is) inset;
-}
 html.b #op_up2k.srch sup {
 	color: #fc0;
 }
@@ -3098,18 +3125,30 @@ html.by #u2cards a.act {



-html.cy #wrap {
-	color: #000;
-}
 html.cy .mdo a {
 	background: #f00;
 }
+html.cy #wrap,
+html.cy #acc_info a,
 html.cy #op_up2k,
 html.cy #files,
 html.cy #files a,
 html.cy #files tbody div a:last-child {
 	color: #000;
 }
+html.cy #u2tab a,
+html.cy #u2cards a {
+	color: #f00;
+}
+html.cy #unpost a {
+	color: #ff0;
+}
+html.cy #barbuf {
+	filter: hue-rotate(267deg) brightness(0.8) contrast(4);
+}
+html.cy #pvol {
+	filter: hue-rotate(4deg) contrast(2.2);
+}



--- a/copyparty/web/browser.html
+++ b/copyparty/web/browser.html
@@ -67,14 +67,14 @@
 	<div id="op_up2k" class="opview"></div>

 	<div id="op_cfg" class="opview opbox opwide"></div>
-	
+
 	<h1 id="path">
 		<a href="#" id="entree">🌲</a>
 		{%- for n in vpnodes %}
 		<a href="{{ r }}/{{ n[0] }}">{{ n[1] }}</a>
 		{%- endfor %}
 	</h1>
-	
+
 	<div id="tree"></div>

 <div id="wrap">
@@ -118,11 +118,11 @@

 		</tbody>
 	</table>
-	
+
 	<div id="epi" class="logue">{{ "" if sb_lg else logues[1] }}</div>

 	<h2 id="wfp"><a href="{{ r }}/?h" id="goh">control-panel</a></h2>
-	
+
 	<a href="#" id="repl">π</a>

 </div>
--- a/copyparty/web/browser.js
+++ b/copyparty/web/browser.js
--- a/copyparty/web/browser2.html
+++ b/copyparty/web/browser2.html
@@ -11,7 +11,6 @@
 		td{border:1px solid #999;border-width:1px 1px 0 0;padding:0 5px}
 		a{display:block}
 	</style>
-{{ html_head }}
 </head>

 <body>
@@ -52,11 +51,11 @@

 		</tbody>
 	</table>
-	
+
 	{%- if logues[1] %}
 	<div>{{ logues[1] }}</div><br />
 	{%- endif %}
-	
+
 	<h2><a href="{{ r }}/{{ url_suf }}{{ url_suf and '&amp;' or '?' }}h">control-panel</a></h2>

 </body>
--- a/copyparty/web/md.html
+++ b/copyparty/web/md.html
@@ -49,7 +49,7 @@
 		<div id="mp" class="mdo"></div>
 	</div>
 	<a href="#" id="repl">π</a>
-	
+
 	{%- if edit %}
 	<div id="helpbox">
 		<textarea autocomplete="off">
@@ -125,7 +125,7 @@ write markdown (most html is 🙆 too)
 		</textarea>
 	</div>
 	{%- endif %}
-	
+
 	<script>

 var SR = {{ r|tojson }},
@@ -159,5 +159,8 @@ try { l.light = drk? 0:1; } catch (ex) { }
 	{%- if edit %}
 	<script src="{{ r }}/.cpr/md2.js?_={{ ts }}"></script>
 	{%- endif %}
+	{%- if js %}
+	<script src="{{ js }}_={{ ts }}"></script>
+	{%- endif %}
 </body></html>

--- a/copyparty/web/mde.html
+++ b/copyparty/web/mde.html
@@ -53,5 +53,8 @@ try { l.light = drk? 0:1; } catch (ex) { }
 	<script src="{{ r }}/.cpr/deps/marked.js?_={{ ts }}"></script>
 	<script src="{{ r }}/.cpr/deps/easymde.js?_={{ ts }}"></script>
 	<script src="{{ r }}/.cpr/mde.js?_={{ ts }}"></script>
+	{%- if js %}
+	<script src="{{ js }}_={{ ts }}"></script>
+	{%- endif %}
 </body></html>

--- a/copyparty/web/msg.html
+++ b/copyparty/web/msg.html
@@ -46,6 +46,9 @@
 		}, 1000);
 	</script>
 	{%- endif %}
+	{%- if js %}
+	<script src="{{ js }}_={{ ts }}"></script>
+	{%- endif %}
 </body>

 </html>
--- a/copyparty/web/shares.css
+++ b/copyparty/web/shares.css
@@ -0,0 +1,82 @@
+html {
+	color: #333;
+	background: #f7f7f7;
+	font-family: sans-serif;
+	font-family: var(--font-main), sans-serif;
+	touch-action: manipulation;
+}
+#wrap {
+	margin: 2em auto;
+	padding: 0 1em 3em 1em;
+	line-height: 2.3em;
+}
+#wrap>span {
+    margin: 0 0 0 1em;
+    border-bottom: 1px solid #999;
+}
+li {
+	margin: 1em 0;
+}
+a {
+	color: #047;
+	background: #fff;
+	text-decoration: none;
+	white-space: nowrap;
+	border-bottom: 1px solid #8ab;
+	border-radius: .2em;
+	padding: .2em .6em;
+	margin: 0 .3em;
+}
+td a {
+	margin: 0;
+}
+#w {
+	color: #fff;
+	background: #940;
+	border-color: #b70;
+}
+#repl {
+	border: none;
+	background: none;
+	color: inherit;
+	padding: 0;
+	position: fixed;
+	bottom: .25em;
+	left: .2em;
+}
+table {
+	border-collapse: collapse;
+    position: relative;
+}
+th {
+	top: -1px;
+	position: sticky;
+    background: #f7f7f7;
+}
+td, th {
+	padding: .3em .6em;
+	text-align: left;
+	white-space: nowrap;
+}
+td+td+td+td+td+td+td+td {
+	font-family: var(--font-mono), monospace, monospace;
+}
+
+
+
+html.z {
+	background: #222;
+	color: #ccc;
+}
+html.z a {
+	color: #fff;
+	background: #057;
+	border-color: #37a;
+}
+html.z th {
+    background: #222;
+}
+html.bz {
+	color: #bbd;
+	background: #11121d;
+}
--- a/copyparty/web/shares.html
+++ b/copyparty/web/shares.html
@@ -0,0 +1,76 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+	<meta charset="utf-8">
+	<title>{{ s_doctitle }}</title>
+	<meta http-equiv="X-UA-Compatible" content="IE=edge">
+	<meta name="viewport" content="width=device-width, initial-scale=0.8">
+	<meta name="theme-color" content="#{{ tcolor }}">
+	<link rel="stylesheet" media="screen" href="{{ r }}/.cpr/shares.css?_={{ ts }}">
+	<link rel="stylesheet" media="screen" href="{{ r }}/.cpr/ui.css?_={{ ts }}">
+{{ html_head }}
+</head>
+
+<body>
+	<div id="wrap">
+		<a id="a" href="{{ r }}/?shares" class="af">refresh</a>
+		<a id="a" href="{{ r }}/?h" class="af">control-panel</a>
+
+        <span>axs = perms (read,write,move,delet)</span>
+        <span>nf = numFiles (0=dir)</span>
+        <span>min/hrs = time left</span>
+
+        <table id="tab"><thead><tr>
+            <th>delete</th>
+            <th>sharekey</th>
+            <th>pw</th>
+            <th>source</th>
+            <th>axs</th>
+            <th>nf</th>
+            <th>user</th>
+            <th>created</th>
+            <th>expires</th>
+            <th>min</th>
+            <th>hrs</th>
+            <th>add time</th>
+        </tr></thead><tbody>
+        {% for k, pw, vp, pr, st, un, t0, t1 in rows %}
+        <tr>
+            <td><a href="#" k="{{ k }}">delete</a></td>
+            <td><a href="{{ r }}{{ shr }}{{ k }}">{{ k }}</a></td>
+            <td>{{ pw }}</td>
+            <td><a href="{{ r }}/{{ vp|e }}">{{ vp|e }}</a></td>
+            <td>{{ pr }}</td>
+            <td>{{ st }}</td>
+            <td>{{ un|e }}</td>
+            <td>{{ t0 }}</td>
+            <td>{{ t1 }}</td>
+            <td>{{ "inf" if not t1 else "dead" if t1 < now else ((t1 - now) / 60)   | round(1) }}</td>
+            <td>{{ "inf" if not t1 else "dead" if t1 < now else ((t1 - now) / 3600) | round(1) }}</td>
+            <td></td>
+        </tr>
+        {% endfor %}
+        </tbody></table>
+        {% if not rows %}
+        (you don't have any active shares btw)
+        {% endif %}
+	<script>
+
+var SR = {{ r|tojson }},
+    shr="{{ shr }}",
+	lang="{{ lang }}",
+	dfavico="{{ favico }}";
+
+var STG = window.localStorage;
+document.documentElement.className = (STG && STG.cpp_thm) || "{{ this.args.theme }}";
+
+</script>
+<script src="{{ r }}/.cpr/util.js?_={{ ts }}"></script>
+<script src="{{ r }}/.cpr/shares.js?_={{ ts }}"></script>
+{%- if js %}
+<script src="{{ js }}_={{ ts }}"></script>
+{%- endif %}
+</body>
+</html>
+
--- a/copyparty/web/shares.js
+++ b/copyparty/web/shares.js
@@ -0,0 +1,56 @@
+var t = QSA('a[k]');
+for (var a = 0; a < t.length; a++)
+    t[a].onclick = rm;
+
+function rm() {
+    var u = SR + shr + uricom_enc(this.getAttribute('k')) + '?eshare=rm',
+        xhr = new XHR();
+
+    xhr.open('POST', u, true);
+    xhr.onload = xhr.onerror = cb;
+    xhr.send();
+}
+
+function bump() {
+    var k = this.closest('tr').getElementsByTagName('a')[0].getAttribute('k'),
+        u = SR + shr + uricom_enc(k) + '?eshare=' + this.value,
+        xhr = new XHR();
+
+    xhr.open('POST', u, true);
+    xhr.onload = xhr.onerror = cb;
+    xhr.send();
+}
+
+function cb() {
+    if (this.status !== 200)
+        return modal.alert('<h6>server error</h6>' + esc(unpre(this.responseText)));
+
+    document.location = '?shares';
+}
+
+(function() {
+    var tab = ebi('tab').tBodies[0],
+        tr = Array.prototype.slice.call(tab.rows, 0);
+
+    var buf = [];
+    for (var a = 0; a < tr.length; a++)
+        for (var b = 7; b < 9; b++)
+            buf.push(parseInt(tr[a].cells[b].innerHTML));
+
+    var ibuf = 0;
+    for (var a = 0; a < tr.length; a++)
+        for (var b = 7; b < 9; b++) {
+            var v = buf[ibuf++];
+            tr[a].cells[b].innerHTML =
+                v ? unix2iso(v).replace(' ', ',&nbsp;') : 'never';
+        }
+
+    for (var a = 0; a < tr.length; a++)
+        tr[a].cells[11].innerHTML =
+            '<button value="1">1min</button> ' +
+            '<button value="60">1h</button>';
+    
+    var btns = QSA('td button'), aa = btns.length;
+    for (var a = 0; a < aa; a++)
+        btns[a].onclick = bump;
+})();
--- a/copyparty/web/splash.css
+++ b/copyparty/web/splash.css
@@ -53,7 +53,7 @@ a.r {
 	border-color: #c7a;
 }
 a.g {
-	color: #2b0;
+	color: #0a0;
 	border-color: #3a0;
 	box-shadow: 0 .3em 1em #4c0;
 }
@@ -152,11 +152,13 @@ pre b,
 code b {
 	color: #000;
 	font-weight: normal;
-	text-shadow: 0 0 .2em #0f0;
+	text-shadow: 0 0 .2em #3f3;
+	border-bottom: 1px solid #090;
 }
 html.z pre b,
 html.z code b {
 	color: #fff;
+	border-bottom: 1px solid #9f9;
 }


@@ -182,13 +184,18 @@ html.z a.g {
 	border-color: #af4;
 	box-shadow: 0 .3em 1em #7d0;
 }
+form {
+	line-height: 2.5em;
+}
+#x,
 input {
 	color: #a50;
 	background: #fff;
 	border: 1px solid #a50;
-	border-radius: .5em;
-	padding: .5em .7em;
-	margin: 0 .5em 0 0;
+	border-radius: .3em;
+	padding: .25em .6em;
+	margin: 0 .3em 0 0;
+	font-size: 1em;
 }
 input::placeholder {
 	font-size: 1.2em;
@@ -197,6 +204,7 @@ input::placeholder {
 	opacity: 0.64;
 	color: #930;
 }
+#x,
 html.z input {
 	color: #fff;
 	background: #626;
--- a/copyparty/web/splash.html
+++ b/copyparty/web/splash.html
@@ -14,6 +14,7 @@

 <body>
 	<div id="wrap">
+		{%- if not in_shr %}
 		<a id="a" href="{{ r }}/?h" class="af">refresh</a>
 		<a id="v" href="{{ r }}/?hc" class="af">connect</a>

@@ -21,7 +22,8 @@
 			<p id="b">howdy stranger &nbsp; <small>(you're not logged in)</small></p>
 		{%- else %}
 			<a id="c" href="{{ r }}/?pw=x" class="logout">logout</a>
-			<p><span id="m">welcome back,</span> <strong>{{ this.uname }}</strong></p>
+			<p><span id="m">welcome back,</span> <strong>{{ this.uname|e }}</strong></p>
+		{%- endif %}
 		{%- endif %}

 		{%- if msg %}
@@ -58,6 +60,18 @@
 		</div>
 		{%- endif %}

+		{%- if ups %}
+		<h1 id="aa">incoming files:</h1>
+			<table class="vols">
+				<thead><tr><th>%</th><th>speed</th><th>eta</th><th>idle</th><th>dir</th><th>file</th></tr></thead>
+				<tbody>
+					{% for u in ups %}
+					<tr><td>{{ u[0] }}</td><td>{{ u[1] }}</td><td>{{ u[2] }}</td><td>{{ u[3] }}</td><td><a href="{{ u[4] }}">{{ u[5]|e }}</a></td><td>{{ u[6]|e }}</td></tr>
+					{% endfor %}
+				</tbody>
+			</table>
+		{%- endif %}
+
 		{%- if rvol %}
 		<h1 id="f">you can browse:</h1>
 		<ul>
@@ -76,8 +90,43 @@
 		</ul>
 		{%- endif %}

-		<h1 id="cc">client config:</h1>
+		{%- if in_shr %}
+		<h1 id="z">unlock this share:</h1>
+		<div>
+			<form id="lf" method="post" enctype="multipart/form-data" action="{{ r }}/{{ qvpath }}">
+				<input type="hidden" id="la" name="act" value="login" />
+				<input type="password" id="lp" name="cppwd" placeholder=" password" />
+				<input type="hidden" name="uhash" id="uhash" value="x" />
+				<input type="submit" id="ls" value="Unlock" />
+				{% if ahttps %}
+				<a id="w" href="{{ ahttps }}">switch to https</a>
+				{% endif %}
+			</form>
+		</div>
+		{%- else %}
+		<h1 id="l">login for more:</h1>
+		<div>
+			<form id="lf" method="post" enctype="multipart/form-data" action="{{ r }}/{{ qvpath }}">
+				<input type="hidden" id="la" name="act" value="login" />
+				<input type="password" id="lp" name="cppwd" placeholder=" password" />
+				<input type="hidden" name="uhash" id="uhash" value="x" />
+				<input type="submit" id="ls" value="Login" />
+				{% if chpw %}
+				<a id="x" href="#">change password</a>
+				{% endif %}
+				{% if ahttps %}
+				<a id="w" href="{{ ahttps }}">switch to https</a>
+				{% endif %}
+			</form>
+		</div>
+		{%- endif %}
+
+		<h1 id="cc">other stuff:</h1>
 		<ul>
+			{%- if this.uname != '*' and this.args.shr %}
+			<li><a id="y" href="{{ r }}/?shares">edit shares</a></li>
+			{% endif %}
+
 			{% if k304 or k304vis %}
 			{% if k304 %}
 			<li><a id="h" href="{{ r }}/?k304=n">disable k304</a> (currently enabled)
@@ -90,18 +139,6 @@
 			<li><a id="k" href="{{ r }}/?reset" class="r" onclick="localStorage.clear();return true">reset client settings</a></li>
 		</ul>

-		<h1 id="l">login for more:</h1>
-		<div>
-			<form method="post" enctype="multipart/form-data" action="{{ r }}/{{ qvpath }}">
-				<input type="hidden" name="act" value="login" />
-				<input type="password" name="cppwd" placeholder=" password" />
-				<input type="hidden" name="uhash" id="uhash" value="x" />
-				<input type="submit" value="Login" />
-				{% if ahttps %}
-				<a id="w" href="{{ ahttps }}">switch to https</a>
-				{% endif %}
-			</form>
-		</div>
 	</div>
 	<a href="#" id="repl">π</a>
 	{%- if not this.args.nb %}
@@ -119,6 +156,9 @@ document.documentElement.className = (STG && STG.cpp_thm) || "{{ this.args.theme
 </script>
 <script src="{{ r }}/.cpr/util.js?_={{ ts }}"></script>
 <script src="{{ r }}/.cpr/splash.js?_={{ ts }}"></script>
+{%- if js %}
+<script src="{{ js }}_={{ ts }}"></script>
+{%- endif %}
 </body>
 </html>

--- a/copyparty/web/splash.js
+++ b/copyparty/web/splash.js
@@ -9,7 +9,7 @@ var Ls = {
 		"e2": "leser inn konfigurasjonsfiler på nytt$N(kontoer, volumer, volumbrytere)$Nog kartlegger alle e2ds-volumer$N$Nmerk: endringer i globale parametere$Nkrever en full restart for å ta gjenge",
 		"f1": "du kan betrakte:",
 		"g1": "du kan laste opp til:",
-		"cc1": "klient-konfigurasjon",
+		"cc1": "brytere og sånt",
 		"h1": "skru av k304",
 		"i1": "skru på k304",
 		"j1": "k304 bryter tilkoplingen for hver HTTP 304. Dette hjelper mot visse mellomtjenere som kan sette seg fast / plutselig slutter å laste sider, men det reduserer også ytelsen betydelig",
@@ -17,9 +17,9 @@ var Ls = {
 		"l1": "logg inn:",
 		"m1": "velkommen tilbake,",
 		"n1": "404: filen finnes ikke &nbsp;┐( ´ -`)┌",
-		"o1": 'eller kanskje du ikke har tilgang? prøv å logge inn eller <a href="' + SR + '/?h">gå hjem</a>',
+		"o1": 'eller kanskje du ikke har tilgang? prøv et passord eller <a href="' + SR + '/?h">gå hjem</a>',
 		"p1": "403: tilgang nektet &nbsp;~┻━┻",
-		"q1": 'du må logge inn eller <a href="' + SR + '/?h">gå hjem</a>',
+		"q1": 'prøv et passord eller <a href="' + SR + '/?h">gå hjem</a>',
 		"r1": "gå hjem",
 		".s1": "kartlegg",
 		"t1": "handling",
@@ -27,21 +27,67 @@ var Ls = {
 		"v1": "koble til",
 		"v2": "bruk denne serveren som en lokal harddisk$N$NADVARSEL: kommer til å vise passordet ditt!",
 		"w1": "bytt til https",
+		"x1": "bytt passord",
+		"y1": "dine delinger",
+		"z1": "lås opp område",
+		"ta1": "du må skrive et nytt passord først",
+		"ta2": "gjenta for å bekrefte nytt passord:",
+		"ta3": "fant en skrivefeil; vennligst prøv igjen",
+		"aa1": "innkommende:",
 	},
 	"eng": {
 		"d2": "shows the state of all active threads",
 		"e2": "reload config files (accounts/volumes/volflags),$Nand rescan all e2ds volumes$N$Nnote: any changes to global settings$Nrequire a full restart to take effect",
 		"u2": "time since the last server write$N( upload / rename / ... )$N$N17d = 17 days$N1h23 = 1 hour 23 minutes$N4m56 = 4 minutes 56 seconds",
 		"v2": "use this server as a local HDD$N$NWARNING: this will show your password!",
+		"ta1": "fill in your new password first",
+		"ta2": "repeat to confirm new password:",
+		"ta3": "found a typo; please try again",
+	},
+
+	"chi": {
+		"a1": "更新",
+		"b1": "你好 &nbsp; <small>(你尚未登录)</small>",
+		"c1": "登出",
+		"d1": "状态",
+		"d2": "显示所有活动线程的状态",
+		"e1": "重新加载配置",
+		"e2": "重新加载配置文件（账户/卷/卷标），$N并重新扫描所有 e2ds 卷$N$N注意：任何全局设置的更改$N都需要完全重启才能生效",
+		"f1": "你可以查看：",
+		"g1": "你可以上传到：",
+		"cc1": "开关等",
+		"h1": "关闭 k304",
+		"i1": "开启 k304",
+		"j1": "k304 会在每个 HTTP 304 时断开连接。这有助于避免某些代理服务器卡住或突然停止加载页面，但也会显著降低性能。",
+		"k1": "重置设置",
+		"l1": "登录：",
+		"m1": "欢迎回来，",
+		"n1": "404: 文件不存在 &nbsp;┐( ´ -`)┌",
+		"o1": '或者你可能没有权限？尝试输入密码或 <a href="' + SR + '/?h">回家</a>',
+		"p1": "403: 访问被拒绝 &nbsp;~┻━┻",
+		"q1": '尝试输入密码或 <a href="' + SR + '/?h">回家</a>',
+		"r1": "回家",
+		".s1": "映射",
+		"t1": "操作",
+		"u2": "自上次服务器写入的时间$N( 上传 / 重命名 / ... )$N$N17d = 17 天$N1h23 = 1 小时 23 分钟$N4m56 = 4 分钟 56 秒",
+		"v1": "连接",
+		"v2": "将此服务器用作本地硬盘$N$N警告：这将显示你的密码！",
+		"w1": "切换到 https",
+		"x1": "更改密码",
+		"y1": "你的分享",
+		"z1": "解锁区域",
+		"ta1": "请先输入新密码",
+		"ta2": "重复以确认新密码：",
+		"ta3": "发现拼写错误；请重试",
+		"aa1": "正在接收的文件：", //m
 	}
 };

-var LANGS = ["eng", "nor"];
-
 if (window.langmod)
 	langmod();

-var d = Ls[sread("cpp_lang", LANGS) || lang] || Ls.eng || Ls.nor;
+var d = Ls[sread("cpp_lang", Object.keys(Ls)) || lang] ||
+			Ls.eng || Ls.nor || Ls.chi;

 for (var k in (d || {})) {
 	var f = k.slice(-1),
@@ -74,3 +120,42 @@ if (o && /[0-9]+$/.exec(o.innerHTML))
 	o.innerHTML = shumantime(o.innerHTML);

 ebi('uhash').value = '' + location.hash;
+
+(function() {
+	if (!ebi('x'))
+		return;
+
+	var pwi = ebi('lp');
+
+	function redo(msg) {
+		modal.alert(msg, function() {
+			pwi.value = '';
+			pwi.focus();
+		});
+	}
+	function mok(v) {
+		if (v !== pwi.value)
+			return redo(d.ta3);
+
+		pwi.setAttribute('name', 'pw');
+		ebi('la').value = 'chpw';
+		ebi('lf').submit();
+	}
+	function stars() {
+		var m = ebi('modali');
+		function enstars(n) {
+			setTimeout(function() { m.value = ''; }, n);
+		}
+		m.setAttribute('type', 'password');
+		enstars(17);
+		enstars(32);
+		enstars(69);
+	}
+	ebi('x').onclick = function (e) {
+		ev(e);
+		if (!pwi.value)
+			return redo(d.ta1);
+
+		modal.prompt(d.ta2, "y", mok, null, stars);
+	};
+})();
--- a/copyparty/web/svcs.html
+++ b/copyparty/web/svcs.html
@@ -56,7 +56,7 @@
                <li>running <code>rclone mount</code> as root? add <code>--allow-other</code></li>
                <li>old version of rclone? replace all <code>=</code> with <code>&nbsp;</code> (space)</li>
            </ul>
-            
+
            <p>if you want to use the native WebDAV client in windows instead (slow and buggy), first run <a href="{{ r }}/.cpr/a/webdav-cfg.bat">webdav-cfg.bat</a> to remove the 47 MiB filesize limit (also fixes latency and password login), then connect:</p>
            <pre>
                net use <b>w:</b> http{{ s }}://{{ ep }}/{{ rvp }}{% if accs %} k /user:<b>{{ pw }}</b>{% endif %}
@@ -64,16 +64,7 @@
        </div>

        <div class="os lin">
-            <pre>
-                yum install davfs2
-                {% if accs %}printf '%s\n' <b>{{ pw }}</b> k | {% endif %}mount -t davfs -ouid=1000 http{{ s }}://{{ ep }}/{{ rvp }} <b>mp</b>
-            </pre>
-            <p>make it automount on boot:</p>
-            <pre>
-                printf '%s\n' "http{{ s }}://{{ ep }}/{{ rvp }} <b>{{ pw }}</b> k" >> /etc/davfs2/secrets
-                printf '%s\n' "http{{ s }}://{{ ep }}/{{ rvp }} <b>mp</b> davfs rw,user,uid=1000,noauto 0 0" >> /etc/fstab
-            </pre>
-            <p>or you can use rclone instead, which is much slower but doesn't require root (plus it keeps lastmodified on upload):</p>
+            <p>rclone (v1.63 or later) is recommended:</p>
            <pre>
                rclone config create {{ aname }}-dav webdav url=http{{ s }}://{{ rip }}{{ hport }} vendor=owncloud pacer_min_sleep=0.01ms{% if accs %} user=k pass=<b>{{ pw }}</b>{% endif %}
                rclone mount --vfs-cache-mode writes --dir-cache-time 5s {{ aname }}-dav:{{ rvp }} <b>mp</b>
@@ -85,6 +76,16 @@
                <li>running <code>rclone mount</code> as root? add <code>--allow-other</code></li>
                <li>old version of rclone? replace all <code>=</code> with <code>&nbsp;</code> (space)</li>
            </ul>
+            <p>alternatively use davfs2 (requires root, is slower, forgets lastmodified-timestamp on upload):</p>
+            <pre>
+                yum install davfs2
+                {% if accs %}printf '%s\n' <b>{{ pw }}</b> k | {% endif %}mount -t davfs -ouid=1000 http{{ s }}://{{ ep }}/{{ rvp }} <b>mp</b>
+            </pre>
+            <p>make davfs2 automount on boot:</p>
+            <pre>
+                printf '%s\n' "http{{ s }}://{{ ep }}/{{ rvp }} <b>{{ pw }}</b> k" >> /etc/davfs2/secrets
+                printf '%s\n' "http{{ s }}://{{ ep }}/{{ rvp }} <b>mp</b> davfs rw,user,uid=1000,noauto 0 0" >> /etc/fstab
+            </pre>
            <p>or the emergency alternative (gnome/gui-only):</p>
            <!-- gnome-bug: ignores vp -->
            <pre>
@@ -104,7 +105,7 @@
            <pre>
                http{{ s }}://k:<b>{{ pw }}</b>@{{ ep }}/{{ rvp }}
            </pre>
-            
+
            {% if s %}
            <p><em>replace <code>https</code> with <code>http</code> if it doesn't work</em></p>
            {% endif %}
@@ -244,6 +245,9 @@ document.documentElement.className = (STG && STG.cpp_thm) || "{{ args.theme }}";
 </script>
 <script src="{{ r }}/.cpr/util.js?_={{ ts }}"></script>
 <script src="{{ r }}/.cpr/svcs.js?_={{ ts }}"></script>
+{%- if js %}
+<script src="{{ js }}_={{ ts }}"></script>
+{%- endif %}
 </body>
 </html>

--- a/copyparty/web/ui.css
+++ b/copyparty/web/ui.css
@@ -265,7 +265,11 @@ html.y #tth {
    box-shadow: 0 .3em 3em rgba(0,0,0,0.5);
 	max-width: 50em;
 	max-height: 30em;
-	overflow: auto;
+	overflow-x: auto;
+	overflow-y: scroll;
+}
+#modalc.yk {
+	overflow-y: auto;
 }
 #modalc td {
 	text-align: unset;
@@ -381,6 +385,7 @@ html.y textarea:focus {
 }
 .mdo pre,
 .mdo code,
+.mdo code[class*="language-"],
 .mdo tt {
 	font-family: 'scp', monospace, monospace;
 	font-family: var(--font-mono), 'scp', monospace, monospace;
--- a/copyparty/web/up2k.js
+++ b/copyparty/web/up2k.js
@@ -152,12 +152,13 @@ function U2pvis(act, btns, uc, st) {
    r.mod0 = null;

    var markup = {
-        '404': '<span class="err">404</span>',
-        'ERROR': '<span class="err">ERROR</span>',
-        'OS-error': '<span class="err">OS-error</span>',
-        'found': '<span class="inf">found</span>',
-        'YOLO': '<span class="inf">YOLO</span>',
-        'done': '<span class="ok">done</span>',
+        '404': '<span class="err">' + L.utl_404 + '</span>',
+        'ERROR': '<span class="err">' + L.utl_err + '</span>',
+        'OS-error': '<span class="err">' + L.utl_oserr + '</span>',
+        'found': '<span class="inf">' + L.utl_found + '</span>',
+        'defer': '<span class="inf">' + L.utl_defer + '</span>',
+        'YOLO': '<span class="inf">' + L.utl_yolo + '</span>',
+        'done': '<span class="ok">' + L.utl_done + '</span>',
    };

    r.addfile = function (entry, sz, draw) {
@@ -445,9 +446,7 @@ function U2pvis(act, btns, uc, st) {
            return;

        r.npotato = 0;
-        var html = [
-            "<p>files: &nbsp; <b>{0}</b> finished, &nbsp; <b>{1}</b> failed, &nbsp; <b>{2}</b> busy, &nbsp; <b>{3}</b> queued</p>".format(
-                r.ctr.ok, r.ctr.ng, r.ctr.bz, r.ctr.q)];
+        var html = [L.u_pott.format(r.ctr.ok, r.ctr.ng, r.ctr.bz, r.ctr.q)];

        while (r.head < r.tab.length && has(["ok", "ng"], r.tab[r.head].in))
            r.head++;
@@ -602,7 +601,7 @@ function U2pvis(act, btns, uc, st) {
            if (nf < 9000)
                return go();

-            modal.confirm('about to show ' + nf + ' files\n\nthis may crash your browser, are you sure?', go, null);
+            modal.confirm(L.u_bigtab.format(nf), go, null);
        };
    }

@@ -658,7 +657,9 @@ function Donut(uc, st) {
    }

    function pos() {
-        return uc.fsearch ? Math.max(st.bytes.hashed, st.bytes.finished) : st.bytes.finished;
+        return uc.fsearch ?
+            Math.max(st.bytes.hashed, st.bytes.finished) :
+            st.bytes.inflight + st.bytes.finished;
    }

    r.on = function (ya) {
@@ -853,6 +854,7 @@ function up2k_init(subtle) {
    setmsg(suggest_up2k, 'msg');

    var parallel_uploads = ebi('nthread').value = icfg_get('nthread', u2j),
+        stitch_tgt = ebi('u2szg').value = icfg_get('u2sz', u2sz.split(',')[1]),
        uc = {},
        fdom_ctr = 0,
        biggest_file = 0;
@@ -1034,7 +1036,7 @@ function up2k_init(subtle) {
        }
        catch (ex) {
            document.body.ondragenter = document.body.ondragleave = document.body.ondragover = null;
-            return modal.alert('your browser does not support drag-and-drop uploading');
+            return modal.alert(L.u_nodrop);
        }
        if (btn)
            return;
@@ -1101,7 +1103,7 @@ function up2k_init(subtle) {
        }

        if (!good_files.length && bad_files.length)
-            return toast.err(30, "that's not a folder!\n\nyour browser is too old,\nplease try dragdrop instead");
+            return toast.err(30, L.u_notdir);

        return read_dirs(null, [], [], good_files, nil_files, bad_files);
    }
@@ -1119,7 +1121,7 @@ function up2k_init(subtle) {
        if (err)
            return modal.alert('sorry, ' + err);

-        toast.inf(0, 'Scanning files...');
+        toast.inf(0, L.u_scan);

        if ((dz == 'up_dz' && uc.fsearch) || (dz == 'srch_dz' && !uc.fsearch))
            tgl_fsearch();
@@ -1207,7 +1209,7 @@ function up2k_init(subtle) {
                    match = false;

            if (match) {
-                var msg = ['directory iterator got stuck on the following {0} items; good chance your browser is about to spinlock:<ul>'.format(missing.length)];
+                var msg = [L.u_dirstuck.format(missing.length) + '<ul>'];
                for (var a = 0; a < Math.min(20, missing.length); a++)
                    msg.push('<li>' + esc(missing[a]) + '</li>');

@@ -1278,7 +1280,7 @@ function up2k_init(subtle) {
    }

    function gotallfiles(good_files, nil_files, bad_files) {
-        if (toast.txt == 'Scanning files...')
+        if (toast.txt == L.u_scan)
            toast.hide();

        if (uc.fsearch && !uc.turbo)
@@ -1434,7 +1436,7 @@ function up2k_init(subtle) {
            if (!actx || actx.state != 'suspended' || toast.visible)
                return;

-            toast.warn(30, "<div onclick=\"start_actx();toast.inf(3,'thanks!')\">please click this text to<br />unlock full upload speed</div>");
+            toast.warn(30, "<div onclick=\"start_actx();toast.inf(3,'thanks!')\">" + L.u_actx + "</div>");
        }, 500);
    }

@@ -1476,7 +1478,7 @@ function up2k_init(subtle) {
        ev(e);
        var txt = linklist();
        cliptxt(txt + '\n', function () {
-            toast.inf(5, txt.split('\n').length + ' links copied to clipboard');
+            toast.inf(5, un_clip.format(txt.split('\n').length));
        });
    };

@@ -1736,16 +1738,13 @@ function up2k_init(subtle) {
                    }
                }

-                var mou_ikkai = false;
-
-                if (st.busy.handshake.length &&
-                    st.busy.handshake[0].t_busied < now - 30 * 1000
-                ) {
-                    console.log("retrying stuck handshake");
-                    var t = st.busy.handshake.shift();
-                    st.todo.handshake.unshift(t);
+                if (st.bytes.inflight && (st.bytes.inflight < 0 || !st.busy.upload.length)) {
+                    console.log('insane inflight ' + st.bytes.inflight);
+                    st.bytes.inflight = 0;
                }

+                var mou_ikkai = false;
+
                var nprev = -1;
                for (var a = 0; a < st.todo.upload.length; a++) {
                    var nf = st.todo.upload[a].nfile;
@@ -2178,7 +2177,7 @@ function up2k_init(subtle) {
        st.busy.head.push(t);

        var xhr = new XMLHttpRequest();
-        xhr.onerror = function () {
+        xhr.onerror = xhr.ontimeout = function () {
            console.log('head onerror, retrying', t.name, t);
            if (!toast.visible)
                toast.warn(9.98, L.u_enethd + "\n\nfile: " + t.name, t);
@@ -2222,6 +2221,7 @@ function up2k_init(subtle) {
            try { orz(e); } catch (ex) { vis_exh(ex + '', 'up2k.js', '', '', ex); }
        };

+        xhr.timeout = 34000;
        xhr.open('HEAD', t.purl + uricom_enc(t.name), true);
        xhr.send();
    }
@@ -2246,8 +2246,11 @@ function up2k_init(subtle) {
        if (keepalive)
            console.log("sending keepalive handshake", t.name, t);

+        if (!t.srch && !t.t_handshake)
+            pvis.seth(t.n, 2, L.u_hs);
+
        var xhr = new XMLHttpRequest();
-        xhr.onerror = function () {
+        xhr.onerror = xhr.ontimeout = function () {
            if (t.t_busied != me)  // t.done ok
                return console.log('zombie handshake onerror', t.name, t);

@@ -2272,7 +2275,8 @@ function up2k_init(subtle) {
                    apop(st.busy.handshake, t);
                    st.todo.handshake.unshift(t);
                    t.cooldown = Date.now() + 5000 + Math.floor(Math.random() * 3000);
-                    return toast.err(0, 'Handshake error; will retry...\n\n' + L.badreply + ':\n\n' + unpre(xhr.responseText));
+                    var txt = t.t_uploading ? L.u_ehsfin : t.srch ? L.u_ehssrch : L.u_ehsinit;
+                    return toast.err(0, txt + '\n\n' + L.badreply + ':\n\n' + unpre(xhr.responseText));
                }

                t.t_handshake = Date.now();
@@ -2374,11 +2378,39 @@ function up2k_init(subtle) {
                    var arr = st.todo.upload,
                        sort = arr.length && arr[arr.length - 1].nfile > t.n;

-                    for (var a = 0; a < t.postlist.length; a++)
+                    if (!t.stitch_sz) {
+                        // keep all connections busy
+                        var bpc = (st.bytes.total - st.bytes.finished) / (parallel_uploads || 1),
+                            ocs = 1024 * 1024,
+                            stp = 1024 * 512,
+                            ccs = ocs;
+                        while (ccs < bpc) {
+                            ocs = ccs;
+                            ccs += stp; if (ccs < bpc) ocs = ccs;
+                            ccs += stp; stp *= 2;
+                        }
+                        ocs = Math.floor(ocs / 1024 / 1024);
+                        t.stitch_sz = Math.min(ocs, stitch_tgt);
+                    }
+
+                    for (var a = 0; a < t.postlist.length; a++) {
+                        var nparts = [], tbytes = 0, stitch = t.stitch_sz;
+                        if (t.nojoin && t.nojoin - t.postlist.length < 6)
+                            stitch = 1;
+
+                        --a;
+                        for (var b = 0; b < stitch; b++) {
+                            nparts.push(t.postlist[++a]);
+                            tbytes += chunksize;
+                            if (tbytes + chunksize > stitch * 1024 * 1024 || t.postlist[a + 1] - t.postlist[a] !== 1)
+                                break;
+                        }
                        arr.push({
                            'nfile': t.n,
-                            'npart': t.postlist[a]
+                            'nparts': nparts
                        });
+                    }
+                    t.nojoin = 0;

                    msg = null;
                    done = false;
@@ -2387,7 +2419,7 @@ function up2k_init(subtle) {
                        arr.sort(function (a, b) {
                            return a.nfile < b.nfile ? -1 :
                            /*  */ a.nfile > b.nfile ? 1 :
-                                    a.npart < b.npart ? -1 : 1;
+                            /*  */ a.nparts[0] < b.nparts[0] ? -1 : 1;
                        });
                }

@@ -2423,6 +2455,7 @@ function up2k_init(subtle) {
                pvis.seth(t.n, 2, L.u_ehstmp, t);

                var err = "",
+                    cls = "ERROR",
                    rsp = unpre(xhr.responseText),
                    ofs = rsp.lastIndexOf('\nURL: ');

@@ -2452,6 +2485,8 @@ function up2k_init(subtle) {
                    if (!t.rechecks && (err_pend || err_srcb)) {
                        t.rechecks = 0;
                        t.want_recheck = true;
+                        err = L.u_dupdefer;
+                        cls = 'defer';
                    }
                }
                if (rsp.indexOf('server HDD is full') + 1)
@@ -2461,7 +2496,7 @@ function up2k_init(subtle) {
                    if (!t.t_uploading)
                        st.bytes.finished += t.size;

-                    pvis.seth(t.n, 1, "ERROR");
+                    pvis.seth(t.n, 1, cls);
                    pvis.seth(t.n, 2, err);
                    pvis.move(t.n, 'ng');

@@ -2493,6 +2528,8 @@ function up2k_init(subtle) {

        xhr.open('POST', t.purl, true);
        xhr.responseType = 'text';
+        xhr.timeout = 42000 + (t.srch || t.t_uploaded ? 0 :
+            (t.size / (1048 * 20))); // safededup 20M/s hdd
        xhr.send(JSON.stringify(req));
    }

@@ -2534,7 +2571,10 @@ function up2k_init(subtle) {
    function exec_upload() {
        var upt = st.todo.upload.shift(),
            t = st.files[upt.nfile],
-            npart = upt.npart,
+            nparts = upt.nparts,
+            pcar = nparts[0],
+            pcdr = nparts[nparts.length - 1],
+            snpart = pcar == pcdr ? pcar : ('' + pcar + '~' + pcdr),
            tries = 0;

        if (t.done)
@@ -2549,8 +2589,8 @@ function up2k_init(subtle) {
        pvis.seth(t.n, 1, "🚀 send");

        var chunksize = get_chunksize(t.size),
-            car = npart * chunksize,
-            cdr = car + chunksize;
+            car = pcar * chunksize,
+            cdr = (pcdr + 1) * chunksize;

        if (cdr >= t.size)
            cdr = t.size;
@@ -2560,14 +2600,19 @@ function up2k_init(subtle) {
            var txt = unpre((xhr.response && xhr.response.err) || xhr.responseText);
            if (txt.indexOf('upload blocked by x') + 1) {
                apop(st.busy.upload, upt);
-                apop(t.postlist, npart);
+                for (var a = pcar; a <= pcdr; a++)
+                    apop(t.postlist, a);
                pvis.seth(t.n, 1, "ERROR");
                pvis.seth(t.n, 2, txt.split(/\n/)[0]);
                pvis.move(t.n, 'ng');
                return;
            }
            if (xhr.status == 200) {
-                pvis.prog(t, npart, cdr - car);
+                var bdone = cdr - car;
+                for (var a = pcar; a <= pcdr; a++) {
+                    pvis.prog(t, a, Math.min(bdone, chunksize));
+                    bdone -= chunksize;
+                }
                st.bytes.finished += cdr - car;
                st.bytes.uploaded += cdr - car;
                t.bytes_uploaded += cdr - car;
@@ -2576,18 +2621,21 @@ function up2k_init(subtle) {
            }
            else if (txt.indexOf('already got that') + 1 ||
                txt.indexOf('already being written') + 1) {
-                console.log("ignoring dupe-segment error", t.name, t);
+                t.nojoin = t.nojoin || t.postlist.length;
+                console.log("ignoring dupe-segment with backoff", t.nojoin, t.name, t);
+                if (!toast.visible && st.todo.upload.length < 4)
+                    toast.inf(10, L.u_cbusy);
            }
            else {
-                xhrchk(xhr, L.u_cuerr2.format(npart, Math.ceil(t.size / chunksize), t.name), "404, target folder not found (???)", "warn", t);
-
+                xhrchk(xhr, L.u_cuerr2.format(snpart, Math.ceil(t.size / chunksize), t.name), "404, target folder not found (???)", "warn", t);
                chill(t);
            }
            orz2(xhr);
        }
        var orz2 = function (xhr) {
            apop(st.busy.upload, upt);
-            apop(t.postlist, npart);
+            for (var a = pcar; a <= pcdr; a++)
+                apop(t.postlist, a);
            if (!t.postlist.length) {
                t.t_uploaded = Date.now();
                pvis.seth(t.n, 1, 'verifying');
@@ -2601,28 +2649,48 @@ function up2k_init(subtle) {
                btot = Math.floor(st.bytes.total / 1024 / 1024);

            xhr.upload.onprogress = function (xev) {
-                var nb = xev.loaded;
-                st.bytes.inflight += nb - xhr.bsent;
+                var nb = xev.loaded,
+                    db = nb - xhr.bsent;
+
+                if (!db)
+                    return;
+
+                st.bytes.inflight += db;
                xhr.bsent = nb;
-                pvis.prog(t, npart, nb);
+                xhr.timeout = 64000 + Date.now() - xhr.t0;
+                pvis.prog(t, pcar, nb);
            };
            xhr.onload = function (xev) {
                try { orz(xhr); } catch (ex) { vis_exh(ex + '', 'up2k.js', '', '', ex); }
            };
-            xhr.onerror = function (xev) {
+            xhr.onerror = xhr.ontimeout = function (xev) {
                if (crashed)
                    return;

                st.bytes.inflight -= (xhr.bsent || 0);
+                xhr.bsent = 0;

                if (!toast.visible)
-                    toast.warn(9.98, L.u_cuerr.format(npart, Math.ceil(t.size / chunksize), t.name), t);
+                    toast.warn(9.98, L.u_cuerr.format(snpart, Math.ceil(t.size / chunksize), t.name), t);

+                t.nojoin = t.nojoin || t.postlist.length;  // maybe rproxy postsize limit
                console.log('chunkpit onerror,', ++tries, t.name, t);
                orz2(xhr);
            };
+
+            var chashes = [],
+                ctxt = t.hash[pcar],
+                plen = Math.floor(192 / nparts.length);
+
+            plen = plen > 9 ? 9 : plen < 2 ? 2 : plen;
+            for (var a = pcar + 1; a <= pcdr; a++)
+                chashes.push(t.hash[a].slice(0, plen));
+
+            if (chashes.length)
+                ctxt += ',' + plen + ',' + chashes.join('');
+
            xhr.open('POST', t.purl, true);
-            xhr.setRequestHeader("X-Up2k-Hash", t.hash[npart]);
+            xhr.setRequestHeader("X-Up2k-Hash", ctxt);
            xhr.setRequestHeader("X-Up2k-Wark", t.wark);
            xhr.setRequestHeader("X-Up2k-Stat", "{0}/{1}/{2}/{3} {4}/{5} {6}".format(
                pvis.ctr.ok, pvis.ctr.ng, pvis.ctr.bz, pvis.ctr.q, btot, btot - bfin,
@@ -2632,6 +2700,8 @@ function up2k_init(subtle) {
                xhr.overrideMimeType('Content-Type', 'application/octet-stream');

            xhr.bsent = 0;
+            xhr.t0 = Date.now();
+            xhr.timeout = 42000;
            xhr.responseType = 'text';
            xhr.send(t.fobj.slice(car, cdr));
        }
@@ -2732,13 +2802,34 @@ function up2k_init(subtle) {
        if (parallel_uploads > 16)
            parallel_uploads = 16;

-        if (parallel_uploads > 7)
+        if (parallel_uploads > 6)
            toast.warn(10, L.u_maxconn);
+        else if (toast.txt == L.u_maxconn)
+            toast.hide();

        obj.value = parallel_uploads;
        bumpthread({ "target": 1 });
    }

+    var read_u2sz = function () {
+        var el = ebi('u2szg'), n = parseInt(el.value), dv = u2sz.split(',');
+        stitch_tgt = n = (
+            isNaN(n) ? dv[1] :
+            n < dv[0] ? dv[0] :
+            n > dv[2] ? dv[2] : n
+        );
+        if (n == dv[1]) sdrop('u2sz'); else swrite('u2sz', n);
+        if (el.value != n) el.value = n;
+    };
+    ebi('u2szg').addEventListener('blur', read_u2sz);
+    ebi('u2szg').onkeydown = function (e) {
+        if (anymod(e)) return;
+        var n = e.code == 'ArrowUp' ? 1 : e.code == 'ArrowDown' ? -1 : 0;
+        if (!n) return;
+        this.value = parseInt(this.value) + n;
+        read_u2sz();
+    }
+
    function tgl_fsearch() {
        set_fsearch(!uc.fsearch);
    }
--- a/copyparty/web/util.js
+++ b/copyparty/web/util.js
@@ -127,13 +127,13 @@ if ((document.location + '').indexOf(',rej,') + 1)

 try {
    console.hist = [];
-    var CMAXHIST = 1000;
+    var CMAXHIST = MOBILE ? 9000 : 44000;
    var hook = function (t) {
        var orig = console[t].bind(console),
            cfun = function () {
                console.hist.push(Date.now() + ' ' + t + ': ' + Array.from(arguments).join(', '));
                if (console.hist.length > CMAXHIST)
-                    console.hist = console.hist.slice(CMAXHIST / 2);
+                    console.hist = console.hist.slice(CMAXHIST / 4);

                orig.apply(console, arguments);
            };
@@ -473,6 +473,24 @@ function crc32(str) {
 }


+function randstr(len) {
+    var ret = '';
+    try {
+        var ar = new Uint32Array(Math.floor((len + 3) / 4));
+        crypto.getRandomValues(ar);
+        for (var a = 0; a < ar.length; a++)
+            ret += ('000' + ar[a].toString(36)).slice(-4);
+        return ret.slice(0, len);
+    }
+    catch (ex) {
+        console.log('using unsafe randstr because ' + ex);
+        while (ret.length < len)
+            ret += ('000' + Math.floor(Math.random() * 1679616).toString(36)).slice(-4);
+        return ret.slice(0, len);
+    }
+}
+
+
 function clmod(el, cls, add) {
    if (!el)
        return false;
@@ -1396,10 +1414,10 @@ var tt = (function () {
            o = ctr.querySelectorAll('*[tt]');

        for (var a = o.length - 1; a >= 0; a--) {
-            o[a].onfocus = _cshow;
-            o[a].onblur = _hide;
-            o[a].onmouseenter = _dshow;
-            o[a].onmouseleave = _hide;
+            o[a].addEventListener('focus', _cshow);
+            o[a].addEventListener('blur', _hide);
+            o[a].addEventListener('mouseenter', _dshow);
+            o[a].addEventListener('mouseleave', _hide);
        }
        r.hide();
    }
@@ -1536,6 +1554,7 @@ var modal = (function () {
    var r = {},
        q = [],
        o = null,
+        scrolling = null,
        cb_up = null,
        cb_ok = null,
        cb_ng = null,
@@ -1556,6 +1575,7 @@ var modal = (function () {
    r.nofocus = 0;

    r.show = function (html) {
+        tt.hide();
        o = mknod('div', 'modal');
        o.innerHTML = '<table><tr><td><div id="modalc">' + html + '</div></td></tr></table>';
        document.body.appendChild(o);
@@ -1579,6 +1599,7 @@ var modal = (function () {

        document.addEventListener('focus', onfocus);
        document.addEventListener('selectionchange', onselch);
+        timer.add(scrollchk, 1);
        timer.add(onfocus);
        if (cb_up)
            setTimeout(cb_up, 1);
@@ -1586,6 +1607,8 @@ var modal = (function () {

    r.hide = function () {
        timer.rm(onfocus);
+        timer.rm(scrollchk);
+        scrolling = null;
        try {
            ebi('modal-ok').removeEventListener('blur', onblur);
        }
@@ -1604,13 +1627,28 @@ var modal = (function () {
        r.hide();
        if (cb_ok)
            cb_ok(v);
-    }
+    };
    var ng = function (e) {
        ev(e);
        r.hide();
        if (cb_ng)
            cb_ng(null);
-    }
+    };
+
+    var scrollchk = function () {
+        if (scrolling === true)
+            return;
+
+        var o = ebi('modalc'),
+            vis = o.offsetHeight,
+            all = o.scrollHeight,
+            nsc = 8 + vis < all;
+
+        if (scrolling !== nsc)
+            clmod(o, 'yk', !nsc);
+
+        scrolling = nsc;
+    };

    var onselch = function () {
        try {
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -1,3 +1,372 @@
+▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀  
+# 2024-0909-2343  `v1.15.1`  session
+
+<img src="https://github.com/9001/copyparty/raw/hovudstraum/docs/logo.svg" width="250" align="right"/>
+
+blessed by ⑨, this release is [certified strong](https://github.com/user-attachments/assets/05459032-736c-4b9a-9ade-a0044461194a) ([artist](https://x.com/hcnone))
+
+## new features
+
+* login sessions b5405174
+  * a random session cookie is generated for each known user, replacing the previous plaintext login cookie
+  * the logout button will nuke the session on all clients where that user is logged in
+  * the sessions are stored in the database at `--ses-db`, default `~/.config/copyparty/sessions.db` (docker uses `/cfg/sessions.db` similar to the other runtime configs)
+    * if you run multiple copyparty instances, much like [shares](https://github.com/9001/copyparty#shares) and [user-changeable passwords](https://github.com/9001/copyparty#user-changeable-passwords) you'll want to keep a separate db for each instance
+  * can be mostly disabled with `--no-ses` when it turns out to be buggy
+
+## bugfixes
+
+* v1.13.8 broke the u2c `--ow` option to replace/overwrite files on the server during upload 6eee6015
+
+
+
+▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀  
+# 2024-0908-1925  `v1.15.0`  fill the drives
+
+## recent important news
+
+* [v1.15.0 (2024-09-08)](https://github.com/9001/copyparty/releases/tag/v1.15.0) changed upload deduplication to be default-disabled
+* [v1.14.3 (2024-08-30)](https://github.com/9001/copyparty/releases/tag/v1.14.3) fixed a bug that was introduced in v1.13.8 (2024-08-13); this bug could lead to **data loss** -- see the v1.14.3 release-notes for details
+
+# upload deduplication now disabled by default
+
+because many people found the behavior surprising. This also makes it easier to use copyparty together with other software, since there is no risk of damage to symlinks if there are no symlinks to damage
+
+to enable deduplication, use either `--dedup` (old-default, symlink-based), or `--hardlink` (will use hardlinks when possible), or `--hardlink-only` (disallow symlinks). To choose the approach that fits your usecase, see [file deduplication](https://github.com/9001/copyparty#file-deduplication) in the readme
+
+verification of local file consistency was also added; this happens when someone uploads a dupe, to ensure that no other software has modified the local file since last reindex. This unfortunately makes uploading of duplicate files much slower, and can be disabled with `--safe-dedup 1` if you know that only copyparty will be modifying the filesystem
+
+## new features
+
+* dedup improvements:
+  * verify consistency of local files before using them as dedup source 6e671c52
+    * if a local file has been altered by other software since the last reindexing, then this will now be detected
+* u2c (commandline uploader): add mode to print hashes of local files 08848be7
+  * if you've lost a file but you know its `wark` (file identifier), you can now use u2c.exe to scan your whole filesystem for it: `u2c - .`
+* #96 use local timezone in log messages b599fbae
+
+## bugfixes
+
+* dedup fixes:
+  * symlinks could break if moved/renamed inside a volume where deduplication was disabled after some files within had already been deduplicated 4401de04
+  * when moving/renaming, only consider symlinks between volumes if `xlink` volflag is set b5ad9369
+* database consistency verifier (`-e2vp`):
+  * support filenames with newlines, and warn about missing files b0de84cb
+* opengraph/`--og`: fix viewing textfiles e5a836cb
+* up2k.js: fix confusing message when uploading many copies of the same file f1130db1
+
+## other changes
+
+* disable upload deduplication by default a2e0f986
+* up2k.js: increase handshake timeout to several minutes because of the dedup changes c5988a04
+* copyparty.exe: update to python 3.12.6
+
+
+
+▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀  
+# 2024-0902-0108  `v1.14.4`  another
+
+## recent important news
+
+* [v1.14.3 (2024-08-30)](https://github.com/9001/copyparty/releases/tag/v1.14.3) fixed a bug that was introduced in v1.13.8 (2024-08-13); this bug could lead to **data loss** -- see the v1.14.3 release-notes for details
+
+## bugfixes
+
+* a network glitch could cause the uploader UI to panic d9e95262
+
+
+
+▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀  
+# 2024-0830-2311  `v1.14.3`  important dedup fix
+
+<img src="https://github.com/9001/copyparty/raw/hovudstraum/docs/logo.svg" width="250" align="right"/>
+
+* read-only demo server at https://a.ocv.me/pub/demo/
+* [docker image](https://github.com/9001/copyparty/tree/hovudstraum/scripts/docker) ╱ [similar software](https://github.com/9001/copyparty/blob/hovudstraum/docs/versus.md) ╱ [client testbed](https://cd.ocv.me/b/)
+
+there is a [discord server](https://discord.gg/25J8CdTT6G) with an `@everyone` in case of future important updates, such as [vulnerabilities](https://github.com/9001/copyparty/security) (most recently 2023-07-23)
+
+# important bugfix ☢️
+
+this version fixes a file deduplication bug which was introduced in [v1.13.8](https://github.com/9001/copyparty/releases/tag/v1.13.8), released 2024-08-13
+
+its worst-case outcome is **loss of data** in the following scenario:
+* someone uploads a file into a folder where that filename is already taken, but the file contents are different, and the server already has a copy of that new file elsewhere under a different name
+
+specific example:
+* the server has two existing files, `logo.png` and `logo-v2.png`, in the same volume but not necessarily in the same folder, and those files contain different data
+* you have a local copy of `logo-v2.png` on your laptop, but your local filename is `logo.png`
+* you upload your local `logo.png` onto the server, into the same folder as the server's `logo.png`
+* because the files contain different data, the server accidentally replaces the contents of `logo.png` with your version
+
+if you have been using the database feature (globally with `-e2dsa` or volflag `e2ds`), and you suspect you may have hit this bug, then it is a good idea to make a backup of the up2k databases for all your volumes (the files with names starting with `up2k.db`) before restarting copyparty and before you do anything else, especially if you do not have serverlogs from far back in time -- if you have either the databases and/or the serverlogs, then it is possible to identify replaced files with some manual work
+
+you can check if you hit the bug using one of the following two approaches:
+* if your OS has the [gnu find](https://linux.die.net/man/1/find) command, do a search for empty files with `find -type f -size 0`
+* using copyparty (any OS), do the following steps:
+  * make sure that reindex-on-startup is enabled; either globally with `-e2dsa` or volflag `e2ds`
+  * then install this new copyparty version
+  * click the search tab `[🔎]` and type the number `0` into the `maximum MiB` textbox
+
+if you find any empty files with a filename that indicates it was autogenerated to avoid a name collision, for example `logo.png-1725040569.239207-kbt0xteO.png`, and the value of the number after `logo.png` is larger than `1723507200` (unixtime for 2024-08-13), then this indicates that `logo.png` may have been replaced by another upload
+
+if you have the serverlogs from when the original upload of `logo.png` was made, then this can be used to identify the original contents of the file that was replaced, and to look for other copies. Please get in touch on the discord for assistance if necessary
+
+----
+
+## new features
+
+* shares: add revival and expiration extension ad2371f8
+  * share-owners can revive expired shares for `--shr-rt` minutes (default 1 day)
+  * ...and extend expiration time by adding 1 minute or 1 hour to the timer
+* [sfx customizer](https://github.com/9001/copyparty/blob/hovudstraum/scripts/make-sfx.sh) improvements 03b13e8a
+  * improved translations stripper
+  * add more examples
+
+## bugfixes
+
+* the dedup bug 3da62ec2
+* tftp: support unmapped root 01233991
+
+## other changes
+
+* copyparty.exe: update to pyinstaller 6.10.0 
+* textviewer wordwrapping c4e2b0f9
+* add logo 7037e736 ee359742
+
+
+
+▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀  
+# 2024-0823-2307  `v1.14.2`  bing chilling
+
+## new features
+
+* #94 @ultwcz translated the UI to Chinese (thx!)  92edea1d
+* #84 improvements to [shares](https://github.com/9001/copyparty#shares): 8122dded
+  * if one or more files are selected for sharing, they are placed into a virtual folder
+  * more appropriate password UI for accessing protected shares
+  * human-readable timestamps in shares listing
+* u2c (commandline uploader): support multiple exclusion patterns f356faa2
+
+## bugfixes
+
+* remove confusing logmessage when downloading a zerobyte file 9f034d9c
+* shares: 7ff46966
+  * fix crash if the root volume is unmapped
+  * log-spam on config reload
+  * password coalescing
+  * add chrome support
+
+## other changes
+
+* #93 add html IDs to the tabstrip 461f3158
+
+
+
+▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀  
+# 2024-0819-0014  `v1.14.1`  one step forward
+
+[if i turn back now, then this will always follow... one step forward, forward](https://youtu.be/xe3Wkzc0O3k?t=27)
+
+* read-only demo server at https://a.ocv.me/pub/demo/
+* [docker image](https://github.com/9001/copyparty/tree/hovudstraum/scripts/docker) ╱ [similar software](https://github.com/9001/copyparty/blob/hovudstraum/docs/versus.md) ╱ [client testbed](https://cd.ocv.me/b/)
+
+there is a [discord server](https://discord.gg/25J8CdTT6G) with an `@everyone` in case of future important updates, such as [vulnerabilities](https://github.com/9001/copyparty/security) (most recently 2023-07-23)
+
+## new features
+
+* #92 users can change their own passwords 83fb569d 00da7440
+  * this feature is default-disabled; see [readme](https://github.com/9001/copyparty#user-changeable-passwords)
+* #84 share files/folders by creating a temporary url 7c2beba5
+  * inspired by other file servers; click the share-button to create a link like `example.com/share/enkz8g374o8g`
+    * primary usecase is to sneak past authentication services (see issue description)
+  * the create-share UI has options to accept uploads into the share, and/or set expiration time
+  * this feature is default-disabled; see [readme](https://github.com/9001/copyparty#shares)
+
+## bugfixes
+
+* #93 fixes for vproxy / location-based / not-vhost-based reverse-proxying 0b46b1a6
+  * using `--rp-loc` to reverse-proxy from a subfolder made some UI stuff break
+* listening on unix-sockets: 687df2fa
+  * fix `x-forwarded-for` support, and avoid a possible container-specific collision
+  * new syntax which allows setting unix-permissions and unix-group
+    * `-i unix:770:www:/tmp/party.sock` (see `--help-bind` for more examples)
+* using relocation hooks (introduced in previous ver) could cause dedup issues c8f4aeae b0af4b37
+* custom fonts using `@import` css statements 5a62cb48
+* invert volume scrollwheel 7d8d9438
+
+## other changes
+
+* changed the button colors in theme 2 (pm-monokai) from red to yellow 5153db6b
+  * the red buttons look better, but are too confusing because usually red means off
+
+
+
+▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀  
+# 2024-0813-0008  `v1.13.8`  hook into place
+
+## new features
+
+* #86 intentional side-effects from hooks 6c94a63f
+  * use hooks (plugins) to conditionally move uploads into another folder depending on filename, extension, uploader ip/name, file contents, ...
+  * hooks can create additional files and tell copyparty to index them immediately, or delete an existing file based on some condition
+  * only one example so far though, [reloc-by-ext](https://github.com/9001/copyparty/tree/hovudstraum/bin/hooks#before-upload) which was a feature-request to dodge [sharex#3992](https://github.com/ShareX/ShareX/issues/3992)
+* listen on unix-sockets ee9aad82
+  * `-i unix:/tmp/party.sock` stops listening on TCP ports entirely, and only listens on that unix-socket
+  * can be combined with regular sockets, `-i 127.0.0.1,unix:/tmp/a.sock`
+  * kinda buggy for now (need to `--xff-src=any` and doesn't let you set socket-perms yet), will be fixed in next ver
+  * makes it 10% faster, but more importantly offers tighter access control behind reverse-proxies
+    * inspired by https://www.oligo.security/blog/0-0-0-0-day-exploiting-localhost-apis-from-the-browser
+* up2k stitching:
+  * more optimal stitch sizes for max throughput across connections c862ec1b
+  * improve fat32 compatibility 373194c3
+* new option `--js-other` to load custom javascript dbd42bc6
+  * `--js-browser` affects the filebrowser page, `--js-other` does all the others
+  * endless possibilities, such as [adding a login-banner](https://github.com/9001/copyparty/blob/hovudstraum/contrib/plugins/banner.js) which [looks like this](https://github.com/user-attachments/assets/8ae8e087-b209-449c-b08d-74e040f0284b)
+* list detected optional dependencies on startup 3db117d8
+  * hopefully reduces the guesswork / jank factor by a tiny bit
+
+## bugfixes
+
+* up2k stitching:
+  * put the request headers on a diet so they fit through more reverse-proxies 0da719f4
+* fix deadlock on s390x (IBM mainframes) 250c8c56
+
+## other changes
+
+* add flags to disengage [features](https://github.com/9001/copyparty/tree/hovudstraum#feature-chickenbits) and [dependencies](https://github.com/9001/copyparty/tree/hovudstraum#dependency-chickenbits) in case they cause trouble 72361c99
+* optimizations
+  * 6% faster on average d5c9c8eb
+  * docker: reduce ram usage 98ffaadf
+  * python2: reduce ram usage ebb19818
+* docker: add [portainer howto](https://github.com/9001/copyparty/blob/hovudstraum/docs/examples/docker/portainer.md) e136231c
+* update deps ca001c85
+  * pyftpdlib 1.5.10
+  * copyparty.exe: python 3.12.5
+
+
+
+▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀  
+# 2024-0729-2028  `v1.13.6`  not that big
+
+## new features
+
+* up2k.js: set clientside timeouts on http connections during upload 85e54980
+  * some reverse-proxy setups could cause uploads to hang indefinitely by eating requests; should recover nicely now
+* audio-player shows statustext while loading 662541c6
+* [bsod theme](https://github.com/9001/copyparty/tree/hovudstraum/contrib/themes) [(live demo)](https://cd.ocv.me/c/) 15ddcf53
+
+## bugfixes
+
+* fix bugs in the [long-distance upload optimizations](https://github.com/9001/copyparty/releases/tag/v1.13.5) in the previous version:
+  * up2k.js didn't necessarily use the expected chunksize when stitching 225bd80e
+  * u2c (commandline uploader): 8916bce3
+    * use the correct chunksize instead of overshooting like crazy
+    * could crash on exit if `-z` was enabled (so basically harmless)
+    * the "time spent uploading" statustext that was printed on exit could multiply by `-j` and exceed walltime
+* misc ux 9bb6e0dc
+  * don't accept hotkeys until it's safe to do so
+  * improve messages regarding the [firefox crash](https://bugzilla.mozilla.org/show_bug.cgi?id=1790500)
+  * keep more console logs in memory (easier to debug)
+  * fix wordwrap in messageboxes on firefox a19a0fa9
+
+## other changes
+
+* changed the `xm` / "on message" [hook examples](https://github.com/9001/copyparty/tree/hovudstraum/bin/hooks#on-message) to reject users without write-access 99edba4f
+* docker images were rebuilt on 2024-08-02, 23:30 UTC with new optimizations: 98ffaadf
+  * 😃 RAM usage decreased by `5-6 MiB` for most flavors; `10 MiB` for dj/iv
+  * 😕 image size grew by `4 MiB` (min), `6 MiB` (ac/im/iv), `9 MiB` (dj)
+  * 😃 startup time reduced to about half
+  * and avoids a deadlock on IBM mainframes
+* updated comparison to other software 6b54972e
+  * `hfs2` is dead, `hfs3` and `filebrowser` improved
+
+
+
+▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀  
+# 2024-0722-2323  `v1.13.5`  american sized
+
+## new features
+
+* long-distance uploads are now **twice as fast** on average 132a8350
+  * boost tcp windowsize scaling by stitching together smaller chunks into bigger chonks so they fly better across the atlantic
+  * i'm not kidding, on the two routes we've tested this on we gained 1.6x / 160% (from US-West to Finland) and **2.6x / 260%** (Norway to US-East)
+    * files that are between 4 MiB and 256 MiB see the biggest improvement; 70% faster <= 768 MiB, 40% <= 1.5 GiB, 10% <= 6G
+  * if this turns out to be buggy, disable it serverside with `--u2sz 1,1,1` or clientside in the browser-ui: `[⚙️]` -> `up2k switches` -> change `64` to `1`
+* u2c.py (CLI uploader): support stitching (☝️) + print a summary with hashing and upload speeds  987bce21
+* video files can play as audio 53f1e3c9
+  * audio is extracted serverside to avoid wasting bandwidth
+  * extraction is lossy (converted to opus or mp3 depending on browser)
+  * togglebutton `🎧` in the gridview toolbar to enable/disable
+* new hook: [into-the-cache-it-goes.py](https://github.com/9001/copyparty/tree/hovudstraum/bin/hooks#after-upload) d26a944d
+  * avoids a cloudflare bug (race condition?) where it will send truncated files to visitors on the very first load if several people simultaneously access a file that hasn't been viewed before
+
+## bugfixes
+
+* inline markdown/logues rendered black-on-black in firefox 54 and some other browsers from 2017 and older eeef8091
+* unintuitive folder thumbnail selection if folder contains both `Cover.jpg` and `cover.jpg` f955d2bd
+* the gridview toolbar got undocked after viewing a pic/vid dc449bf8
+
+## other changes
+
+* #90 recommend rclone in favor of davfs2 ef0ecf87
+* improved some error messages e565ad5f
+* added helptext exporters to generate the online [html](https://ocv.me/copyparty/helptext.html) and [txt](https://ocv.me/copyparty/helptext.txt) editions 59533990
+* mention that cloudflare is incompatible with uploading files larger than 383.9 GiB 
+
+
+
+▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀  
+# 2024-0716-0457  `v1.13.4`  descript.ion
+
+## new features
+
+* "medialinks"; instead of the usual hotlink, the basic-uploader (as used by sharex and such) can return a link that opens the file in the media viewer c9281f89
+  * enable for all uploads with volflag `medialinks`, or just for one upload by adding `?media` to the post url
+* thumbnails are now fully compatible with dirkeys/filekeys 52e06226
+* `--th-covers` will respect filename order, selecting the first matching filename as the folder thumbnail 1cdb1702
+* new hook: [bittorrent downloader](https://github.com/9001/copyparty/tree/hovudstraum/bin/hooks#on-message) bd3b3863 803e1565
+* hooks: d749683d
+  * can be restricted to only run when user has specific permissions
+  * user permissions are also included in the json message to the hook
+  * new syntax to prepend args to the hook's command
+  * (all this will be better documented after some additional upcoming hook-related features, see `--help-hooks` for now)
+* support `descript.ion` usenet metadata; will parse and render into directory listings when possible 927c3bce
+  * directory listings are now 2% slower, eh who's keeping count anyways
+* tftp-server: 45259251
+  * improved support for buggy clients
+  * improved ipv6 support, especially on macos
+  * improved robustness on unreliable networks
+* #85 new option `--gsel` to default-enable the client setting to select files by ctrl-clicking them in the grid 9a87ee2f
+* music player: set audio volume by scrollwheel 36d6d29a
+
+## bugfixes
+
+* race-the-beam (downloading an unfinished upload) could get interrupted near the end, requiring a manual resume in the browser's download manager to finish f37187a0
+* ftp-server: when accessing the root folder of servers without a root folder, it could mention inaccessible folders 84e8e1dd
+* ftp-server: uploads will automatically replace existing files if user has delete perms 0a9f4c60
+  * windows 2000 expects this behavior, otherwise it'll freak out and delete stuff and then not actually upload it, nice
+  * new option `--ftp-no-ow` restores old default behavior of rejecting upload if target filename exists
+* music player:
+  * stop trying to recover from a corrupted file if the user already fixed it manually 55a011b9
+  * support downloading the currently playing song regardless of current folder c06aa683
+* music player preloader: db6059e1
+  * stop searching after 5 folders of nothing
+  * don't crash playback by walking into error-pages
+* `--og` (rich discord embeds) was incompatible with viewing markdown docs d75a2c77
+* `--cgen` (configfile generator) much less jank d5de3f2f
+
+## other changes
+
+* mention that HTTP/2 is still usually slower than HTTP/1.1 dfe7f1d9
+* give up much sooner if a client is supposed to send a request body but isn't c549f367
+* support running copyparty as a server on windows 2000 and winXP 8c73e0cb 2fd12a83
+* updated deps 6e58514b
+  * copyparty.exe: python 3.12, pillow 10.4, pyinstaller 6.9
+  * dompurify 3.1.6
+
+
+
 ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀  
 # 2024-0601-2324  `v1.13.3`  700+

@@ -626,7 +995,7 @@ dnf install https://ocv.me/copyparty/fedora/39/python3-copyparty.fc39.noarch.rpm
 ## other changes
 * improved [systemd example](https://github.com/9001/copyparty/tree/hovudstraum/contrib/systemd) with hardening and a better example config
 * logfiles are flushed for every line written; can be disabled with `--no-logflush` for ~3% more performance best-case
-* iphones probably won't broadcast cover-art to car stereos over bluetooth anymore since the thingamajig in iOS that's in charge of that doesn't have cookie-access, and strapping in the auth is too funky so let's stop doing that b7723ac245b8b3e38d6410891ef1aa92d4772114
+* iphones probably won't broadcast cover-art to car stereos over bluetooth anymore since the thingamajig in iOS that's in charge of that doesn't have cookie-access, and strapping in the auth is too funky so let's stop doing that b7723ac2
  * can be remedied by enabling filekeys and granting unauthenticated people access that way, but that's too much effort for anyone to bother with I'm sure


@@ -895,12 +1264,12 @@ okay, i swear this is the last version for weeks! probably
    * [r0c is much better](https://github.com/9001/r0c) than this joke

 ## bugfixes
-* 163e3fce46122d64bf824762b6733ff2c3551ba5 the `x-forwarded-for` header was ignored if the nearest reverse-proxy is not asking from 127.0.0.1, which broke client IPs in containerized deployments
+* 163e3fce the `x-forwarded-for` header was ignored if the nearest reverse-proxy is not asking from 127.0.0.1, which broke client IPs in containerized deployments
  * the serverlog will now explain how to trust the reverse-proxy to provide client IPs, but basically,
  * `--xff-hdr` specifies which header to read the client's real ip from
  * `--xff-src` is an allowlist of IP-addresses to trust that header from
-* a62f744a187bc9f821b540e8bb4e0b9a67bd01c8 if copyparty was started while an external HDD was not connected, and that volume's index was stored elsewhere, then the index would get wiped (since all the files are gone)
-* 3b8f66c0d5c27a68841814ec06f1758f146a5ff5 javascript could crash while uploading from a very unreliable internet connection
+* a62f744a if copyparty was started while an external HDD was not connected, and that volume's index was stored elsewhere, then the index would get wiped (since all the files are gone)
+* 3b8f66c0 javascript could crash while uploading from a very unreliable internet connection

 ## other changes
 * copyparty.exe: updated pillow to 10.0.1 which fixes the webp cve
@@ -946,7 +1315,7 @@ hello! it's been a while, an entire day even...
  * default compression levels are gz:3, bz2:2, xz:1; override with `?tar=gz:9`

 # bugfixes
-* c1efd227b7377144a5760bc6cff64f4e87b626d9 symlink-deduplicated files got indexed with the wrong last-modified timestamp
+* c1efd227 symlink-deduplicated files got indexed with the wrong last-modified timestamp
  * mostly inconsequential; would cause the dupe's uploader-ip to be forgotten on the next server restart since it would reindex to "fix" the timestamp
 * when linking [a search query](https://a.ocv.me/pub/#q=tags%20like%20soundsho*) it loads the results faster

@@ -961,12 +1330,12 @@ hello! it's been a while, an entire day even...

 ## new features
 * iPhones and iPads are now able to...
-  * 9986136dfb2364edb35aa9fbb87410641c6d6af3 play entire albums while the screen is off without the music randomly stopping
+  * 9986136d play entire albums while the screen is off without the music randomly stopping
    * apple keeps breaking AudioContext in new and interesting ways; time to give up (no more equalizer)
-  * 1c0d978979a703edeb792e552b18d3b7695b2d90 perform search queries and execude js code
+  * 1c0d9789 perform search queries and execude js code
    * by translating [smart-quotes](https://stackoverflow.com/questions/48678359/ios-11-safari-html-disable-smart-punctuation) into regular `'` and `"` characters
 * python 3.12 support
-  * technically a bugfix since it was added [a year ago](https://github.com/9001/copyparty/commit/32e22dfe84d5e0b13914b4d0e15c1b8c9725a76d) way before the first py3.12 alpha was released but turns out i botched it, oh well
+  * technically a bugfix since it was added [a year ago](https://github.com/9001/copyparty/commit/32e22dfe) way before the first py3.12 alpha was released but turns out i botched it, oh well
 * filter error messages so they never include the filesystem path where copyparty's python files reside
 * print more context in server logs if someone hits an unexpected permission-denied

@@ -1187,8 +1556,8 @@ Thanks for flying copyparty! And especially if you decide to continue doing so :
      ```bash
      (gzip -dc access.log.*.gz; cat access.log) | sed -r 's/" [0-9]+ .*//' | grep -E 'cpr/.*%2[^0]' | grep -vF data:image/svg
      ```
-* 77f1e5144455eb946db7368792ea11c934f0f6da fixes an extremely unlikely race-condition (see the commit for details)
-* 8f59afb1593a75b8ce8c91ceee304097a07aea6e fixes another race-condition which is a bit worse:
+* 77f1e514 fixes an extremely unlikely race-condition (see the commit for details)
+* 8f59afb1 fixes another race-condition which is a bit worse:
  * the unpost feature could collide with other database activity, with the worst-case outcome being aborted batch operations, for example a directory move or a batch-rename which stops halfways

 ----
@@ -1362,7 +1731,7 @@ don't get excited! nothing new and revolutionary, but `xvol` and `xdev` changed
 # 2023-0426-2300  `v1.6.15`  unexpected boost

 ## new features
-* 30% faster folder listings due to [the very last thing](https://github.com/9001/copyparty/commit/55c74ad164633a0a64dceb51f7f534da0422cbb5) i'd ever expect to be a bottleneck, [thx perf](https://docs.python.org/3.12/howto/perf_profiling.html)
+* 30% faster folder listings due to [the very last thing](https://github.com/9001/copyparty/commit/55c74ad1) i'd ever expect to be a bottleneck, [thx perf](https://docs.python.org/3.12/howto/perf_profiling.html)
 * option to see the lastmod timestamps of symlinks instead of the target files
  * makes the turbo mode of [u2cli, the commandline uploader and folder-sync tool](https://github.com/9001/copyparty/blob/hovudstraum/bin/up2k.py) more turbo since copyparty dedupes uploads by symlinking to an existing copy and the symlink is stamped with the deduped file's lastmod
  * **webdav:** enabled by default (because rclone will want this), can be disabled with arg `--dav-rt` or volflag `davrt`
@@ -1566,7 +1935,7 @@ don't get excited! nothing new and revolutionary, but `xvol` and `xdev` changed
 the commandline up2k upload / filesearch client, now as a standalone windows exe
 * based on python 3.7 so it runs on 32bit windows7 or anything newer
 * *no https support* (saves space + the python3.7 openssl is getting old)
-* built from b39ff92f34e3fca389c78109d20d5454af761f8e so it can do long filepaths and mojibake
+* built from b39ff92f so it can do long filepaths and mojibake

 ----

@@ -1773,7 +2142,7 @@ but nothing is affected (that i know of):
 * tar/zip-download of hidden folders
 * unpost filtering was buggy for non-ascii characters
 * moving a deduplicated file on a volume where deduplication was since disabled
-* improved the [linux 6.0.16](https://utcc.utoronto.ca/~cks/space/blog/linux/KernelBindBugIn6016) kernel bug [workaround](https://github.com/9001/copyparty/commit/9065226c3d634a9fc15b14a768116158bc1761ad) because there is similar funk in 5.x
+* improved the [linux 6.0.16](https://utcc.utoronto.ca/~cks/space/blog/linux/KernelBindBugIn6016) kernel bug [workaround](https://github.com/9001/copyparty/commit/9065226c) because there is similar funk in 5.x
 * add custom text selection colors because chrome is currently broken on fedora
 * blockdevs (`/dev/nvme0n1`) couldn't be downloaded as files
 * misc fixes for location-based reverse-proxying
@@ -1802,7 +2171,7 @@ hello from warsaw airport (goodbye japan ;_;)
 * browser ui didn't allow specifying number of threads for file search
 * dont panic if a digit key is pressed while viewing an image
 * workaround [linux kernel bug](https://utcc.utoronto.ca/~cks/space/blog/linux/KernelBindBugIn6016) causing log spam on dualstack
-  * ~~related issue (also mostly harmless) will be fixed next relese 010770684db95bece206943768621f2c7c27bace~~ 
+  * ~~related issue (also mostly harmless) will be fixed next relese 01077068~~ 
    * they fixed it in linux 6.1 so these workarounds will be gone too


@@ -2768,7 +3137,7 @@ fixed another dumdum, sorry for the spam
 * the ftp server is not compatible with python 3.12 (releasing october 2023)
  * will be fixed in a [future version of pyftpdlib](https://github.com/giampaolo/pyftpdlib/issues/560)

-the sfx was built from https://github.com/9001/copyparty/commit/39e7a7a2311ab8da43b2a9a18ae39d06202105e3
+the sfx was built from https://github.com/9001/copyparty/commit/39e7a7a2



@@ -3549,7 +3918,7 @@ we did it reddit 👉😎👉
 * latest gzip edition of the sfx: [v0.11.18](https://github.com/9001/copyparty/releases/tag/v0.11.18)
 * if upgrading from v0.11.x or before, see [v0.12.4](https://github.com/9001/copyparty/releases/tag/v0.12.4)

-note: `copyparty-sfx.py` is https://github.com/9001/copyparty/commit/5955940b82adddb7149125a60463aba22f1c8c31 which fixes upload eta
+note: `copyparty-sfx.py` is https://github.com/9001/copyparty/commit/5955940b which fixes upload eta

 ## new features
 * provide password using basic-authentication
@@ -5019,7 +5388,7 @@ nothing really important happened since [v0.11.6](https://github.com/9001/copypa
 * this release fixes a missing permission check which could allow users to download write-only folders
  * this bug was introduced 19 days ago, in `v0.10.17`
  * the requirement to be affected is write-only folders mounted within readable folders
-  * and the worst part is there was a unit-test exactly for this, https://github.com/9001/copyparty/commit/273ca0c8da0d94f9d06ca16bd86c0301d9d06455 way overdue
+  * and the worst part is there was a unit-test exactly for this, https://github.com/9001/copyparty/commit/273ca0c8 way overdue
 * also fixes minor bugs introduced in `v0.11.1`
 * this version is the same as `v0.11.5` on pypi

@@ -5203,8 +5572,8 @@ in other news, minor ui tweaks:
 * a few lightmode adjustments
 * less cpu usage? should be

-`copyparty-sfx.py` (latest) made from c5db7c1a0c8f6ab23138ad7ea7642a6260e7da9b (v0.10.15-15) fixes `-j` (multiprocessing/high-performance)
-`copyparty-sfx-5a579db.py` (old) made from 5a579dba52e46c202b79c3d80c3b1c996c7b2e4a (v0.10.15-5) reduced the size
+`copyparty-sfx.py` (latest) made from c5db7c1a (v0.10.15-15) fixes `-j` (multiprocessing/high-performance)
+`copyparty-sfx-5a579db.py` (old) made from 5a579dba (v0.10.15-5) reduced the size



@@ -5517,7 +5886,7 @@ and i just realized i never added runtime tag scanning so copyparty will have to

 use `-e2dsa` and `-e2ts` to enable the media tag features globally, or enable/disable them per-volume (see readme)

-**NOTE:** older fuse clients (from before 5e3775c1afc9438f9930080a9b8542a063ba1765  / older than v0.8.0) must be upgraded for this copyparty release, however the new client still supports connecting to old servers
+**NOTE:** older fuse clients (from before 5e3775c1  / older than v0.8.0) must be upgraded for this copyparty release, however the new client still supports connecting to old servers

 other changes include
 * support chunked PUT requests from curl
@@ -5737,7 +6106,7 @@ valvrave-stop.jpg
 ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀  
 # 2020-0818-1822  `v0.5.2`  da setter vi punktum

-full disclaimer: `copyparty-sfx.py` was built using `sfx.py` from ~~82e568d4c9f25bfdfd1bf5166f0ebedf058723ee~~ f550a8171d298992f4ef569d2fc99a6037a44ea8
+full disclaimer: `copyparty-sfx.py` was built using `sfx.py` from ~~82e568d4~~ f550a817



--- a/docs/devnotes.md
+++ b/docs/devnotes.md
@@ -1,7 +1,7 @@
 ## devnotes toc

 * top
-* [future plans](#future-plans) - some improvement ideas
+* [future ideas](#future-ideas) - list of dreams which will probably never happen
 * [design](#design)
    * [up2k](#up2k) - quick outline of the up2k protocol
        * [why not tus](#why-not-tus) - I didn't know about [tus](https://tus.io/)
@@ -12,6 +12,8 @@
    * [write](#write)
    * [admin](#admin)
    * [general](#general)
+* [event hooks](#event-hooks) - on writing your own [hooks](../README.md#event-hooks)
+    * [hook effects](#hook-effects) - hooks can cause intentional side-effects
 * [assumptions](#assumptions)
    * [mdns](#mdns)
 * [sfx repack](#sfx-repack) - reduce the size of an sfx by removing features
@@ -25,9 +27,9 @@
    * [discarded ideas](#discarded-ideas)


-# future plans
+# future ideas

-some improvement ideas
+list of dreams which will probably never happen

 * the JS is a mess -- a ~~preact~~ rewrite would be nice
  * preferably without build dependencies like webpack/babel/node.js, maybe a python thing to assemble js files into main.js
@@ -55,8 +57,8 @@ quick outline of the up2k protocol,  see [uploading](https://github.com/9001/cop
 * server creates the `wark`, an identifier for this upload
  * `sha512( salt + filesize + chunk_hashes )`
  * and a sparse file is created for the chunks to drop into
-* client uploads each chunk
-  * header entries for the chunk-hash and wark
+* client sends a series of POSTs, with one or more consecutive chunks in each
+  * header entries for the chunk-hashes (comma-separated) and wark
  * server writes chunks into place based on the hash
 * client does another handshake with the hashlist; server replies with OK or a list of chunks to reupload

@@ -137,6 +139,7 @@ authenticate using header `Cookie: cppwd=foo` or url param `&pw=foo`
 | GET | `?tar&w` | pregenerate webp thumbnails |
 | GET | `?tar&j` | pregenerate jpg thumbnails |
 | GET | `?tar&p` | pregenerate audio waveforms |
+| GET | `?shares` | list your shared files/folders |
 | GET | `?ups` | show recent uploads from your IP |
 | GET | `?ups&filter=f` | ...where URL contains `f` |
 | GET | `?mime=foo` | specify return mimetype `foo` |
@@ -173,6 +176,9 @@ authenticate using header `Cookie: cppwd=foo` or url param `&pw=foo`
 | mPOST | `?media` | `f=FILE` | ...and return medialink (not hotlink) |
 | mPOST | | `act=mkdir`, `name=foo` | create directory `foo` at URL |
 | POST | `?delete` | | delete URL recursively |
+| POST | `?eshare=rm` | | stop sharing a file/folder |
+| POST | `?eshare=3` | | set expiration to 3 minutes |
+| jPOST | `?share` | (complicated) | create temp URL for file/folder |
 | jPOST | `?delete` | `["/foo","/bar"]` | delete `/foo` and `/bar` recursively |
 | uPOST | | `msg=foo` | send message `foo` into server log |
 | mPOST | | `act=tput`, `body=TEXT` | overwrite markdown document at URL |
@@ -204,6 +210,32 @@ upload modifiers:
 | GET | `?pw=x` | logout |


+# event hooks
+
+on writing your own [hooks](../README.md#event-hooks)
+
+## hook effects
+
+hooks can cause intentional side-effects,  such as redirecting an upload into another location, or creating+indexing additional files, or deleting existing files, by returning json on stdout
+
+* `reloc` can redirect uploads before/after uploading has finished, based on filename, extension, file contents, uploader ip/name etc.
+* `idx` informs copyparty about a new file to index as a consequence of this upload
+* `del` tells copyparty to delete an unrelated file by vpath
+
+for these to take effect, the hook must be defined with the `c1` flag; see example [reloc-by-ext](https://github.com/9001/copyparty/blob/hovudstraum/bin/hooks/reloc-by-ext.py)
+
+a subset of effect types are available for a subset of hook types,
+
+* most hook types (xbu/xau/xbr/xar/xbd/xad/xm) support `idx` and `del` for all http protocols (up2k / basic-uploader / webdav), but not ftp/tftp/smb
+* most hook types will abort/reject the action if the hook returns nonzero, assuming flag `c` is given, see examples [reject-extension](https://github.com/9001/copyparty/blob/hovudstraum/bin/hooks/reject-extension.py) and [reject-mimetype](https://github.com/9001/copyparty/blob/hovudstraum/bin/hooks/reject-mimetype.py)
+* `xbu` supports `reloc` for all http protocols (up2k / basic-uploader / webdav), but not ftp/tftp/smb
+* `xau` supports `reloc` for basic-uploader / webdav only, not up2k or ftp/tftp/smb
+  * so clients like sharex are supported, but not dragdrop into browser
+
+to trigger indexing of files `/foo/1.txt` and `/foo/bar/2.txt`, a hook can `print(json.dumps({"idx":{"vp":["/foo/1.txt","/foo/bar/2.txt"]}}))` (and replace "idx" with "del" to delete instead)
+* note: paths starting with `/` are absolute URLs, but you can also do `../3.txt` relative to the destination folder of each uploaded file
+
+
 # assumptions

 ## mdns
@@ -327,10 +359,6 @@ can be reproduced with `--no-sendfile --s-wr-sz 8192 --s-wr-slp 0.3 --rsp-slp 6`
  * remove brokers / multiprocessing stuff; https://github.com/9001/copyparty/tree/no-broker
  * reduce the nesting / indirections in `HttpCli` / `httpcli.py`
    * nearly zero benefit from stuff like replacing all the `self.conn.hsrv` with a local `hsrv` variable
-* reduce up2k roundtrips
-  * start from a chunk index and just go
-  * terminate client on bad data
-    * not worth the effort, just throw enough conncetions at it
 * single sha512 across all up2k chunks?
  * crypto.subtle cannot into streaming, would have to use hashwasm, expensive
 * separate sqlite table per tag
--- a/docs/examples/docker/portainer.md
+++ b/docs/examples/docker/portainer.md
@@ -0,0 +1,45 @@
+the following setup appears to work (copyparty starts, accepts uploads, is able to persist config)
+
+tested on debian 12 using [portainer-ce](https://docs.portainer.io/start/install-ce/server/docker/linux) with [docker-ce](https://docs.docker.com/engine/install/debian/) as root (not rootless)
+
+before making the container, first `mkdir /etc/copyparty /srv/pub` which will be bind-mounts into the container
+
+> both `/etc/copyparty` and `/srv/pub` are examples; you can change them if you'd like
+
+put your copyparty config files directly into `/etc/copyparty` and the files to share inside `/srv/pub`
+
+on first startup, copyparty will create a subfolder inside `/etc/copyparty` called `copyparty` where it puts some runtime state; for example replacing `/etc/copyparty/copyparty/cert.pem` with another TLS certificate is a quick and dirty way to get valid HTTPS (if you really want copyparty to handle that and not a reverse-proxy)
+
+
+## in portainer:
+
+```
+environments -> local -> containers -> add container:
+
+       name = copyparty-ac
+   registry = docker hub
+      image = copyparty/ac
+always pull = no
+
+manual network port publishing:
+  3923 to 3923 [TCP]
+
+advanced -> command & logging:
+  console = interactive & tty
+
+advanced -> volumes -> map additional volume:
+  container = /cfg  [Bind]
+  host = /etc/copyparty  [Writable]
+
+advanced -> volumes -> map additional volume:
+  container = /w  [Bind]
+  host = /srv/pub  [Writable]
+```
+
+notes:
+
+* `/cfg` is where copyparty expects to find its config files; `/etc/copyparty` is just an example mapping to that
+
+* `/w` is where copyparty expects to find the folder to share; `/srv/pub` is just an example mapping to that
+
+* the volumes must be bind-mounts to avoid permission issues (or so the theory goes)
--- a/docs/examples/windows.md
+++ b/docs/examples/windows.md
@@ -16,7 +16,7 @@ open up notepad and save the following as `c:\users\you\documents\party.conf` (f
 ```yaml
 [global]
  lo: ~/logs/cpp-%Y-%m%d.xz  # log to c:\users\you\logs\
-  e2dsa, e2ts, no-dedup, z   # sets 4 flags; see expl.
+  e2dsa, e2ts, z    # sets 3 flags; see explanation
  p: 80, 443  # listen on ports 80 and 443, not 3923
  theme: 2    # default theme: protonmail-monokai
  lang: nor   # default language: viking
@@ -46,11 +46,10 @@ open up notepad and save the following as `c:\users\you\documents\party.conf` (f

 ### config explained: [global]

-the `[global]` section accepts any config parameters [listed here](https://ocv.me/copyparty/helptext.html), also viewable by running copyparty (either the exe or the sfx.py) with `--help`, so this is the same as running copyparty with arguments `--lo c:\users\you\logs\copyparty-%Y-%m%d.xz -e2dsa -e2ts --no-dedup -z -p 80,443 --theme 2 --lang nor`
+the `[global]` section accepts any config parameters [listed here](https://ocv.me/copyparty/helptext.html), also viewable by running copyparty (either the exe or the sfx.py) with `--help`, so this is the same as running copyparty with arguments `--lo c:\users\you\logs\copyparty-%Y-%m%d.xz -e2dsa -e2ts -z -p 80,443 --theme 2 --lang nor`
 * `lo: ~/logs/cpp-%Y-%m%d.xz` writes compressed logs (the compression will make them delayed)
-* `e2dsa` enables the upload deduplicator and file indexer, which enables searching
+* `e2dsa` enables the file indexer, which enables searching and upload-undo
 * `e2ts` enables music metadata indexing, making albums / titles etc. searchable too
-* `no-dedup` writes full dupes to disk instead of symlinking, since lots of windows software doesn't handle symlinks well
  * but the improved upload speed from `e2dsa` is not affected
 * `z` enables zeroconf, making the server available at `http://HOSTNAME.local/` from any other machine in the LAN
 * `p: 80,443` listens on the ports `80` and `443` instead of the default `3923`
--- a/docs/logo.svg
+++ b/docs/logo.svg
@@ -0,0 +1,210 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+  width="300mm"
+  height="207mm"
+  viewBox="0 0 300 207"
+  version="1.1"
+  id="svg1"
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+  xmlns:svg="http://www.w3.org/2000/svg"
+  xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+  xmlns:cc="http://creativecommons.org/ns#"
+  xmlns:dc="http://purl.org/dc/elements/1.1/">
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+   id="metadata5">
+  <rdf:RDF>
+   <cc:Work
+     rdf:about="">
+    <dc:format>image/svg+xml</dc:format>
+    <dc:type
+      rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+    <dc:title>copyparty_logo</dc:title>
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+     d="m 68.1,87.665 9.526,5.5 2.5,-4.33 -9.526,-5.5 z m 33.775,19.5 9.527,5.5 2.5,-4.33 -9.527,-5.5 z"
+     sodipodi:nodetypes="cccccccccc" />
+  </g>
+  <g
+    id="g2"
+    transform="rotate(30,150,318.19)">
+   <path
+     id="path7"
+     style="fill:#333333"
+     d="m 111.4,83.335 -9.526,5.5 2.5,4.33 9.526,-5.5 z m -33.775,19.5 -9.526,5.5 2.5,4.33 9.526,-5.5 z"
+     sodipodi:nodetypes="cccccccccc" />
+   <path
+     id="path8"
+     style="fill:#333333"
+     d="M 88.5,73 V 84 h 5 V 73 Z m 0,39 v 11 h 5 V 112 Z"
+     sodipodi:nodetypes="cccccccccc" />
+   <path
+     id="path9"
+     style="fill:#333333"
+     d="m 68.1,87.665 9.526,5.5 2.5,-4.33 -9.526,-5.5 z m 33.775,19.5 9.527,5.5 2.5,-4.33 -9.527,-5.5 z"
+     sodipodi:nodetypes="cccccccccc" />
+  </g>
+ </g>
+</svg>
--- a/docs/notes.sh
+++ b/docs/notes.sh
@@ -141,6 +141,9 @@ find -maxdepth 1 -printf '%s %p\n' | sort -n | awk '!/-([0-9a-zA-Z_-]{11})\.(mkv
 # unique stacks in a stackdump
 f=a; rm -rf stacks; mkdir stacks; grep -E '^#' $f | while IFS= read -r n; do awk -v n="$n" '!$0{o=0} o; $0==n{o=1}' <$f >stacks/f; h=$(sha1sum <stacks/f | cut -c-16); mv stacks/f stacks/$h-"$n"; done ; find stacks/ | sort | uniq -cw24

+# find unused css variables
+cat browser.css | sed -r 's/(var\()/\n\1/g' | awk '{sub(/:/," ")} $1~/^--/{d[$1]=1} /var\(/{sub(/.*var\(/,"");sub(/\).*/,"");u[$1]=1} END{for (x in u) delete d[x]; for (x in d) print x}' | tr '\n' '|'
+

 ##
 ## sqlite3 stuff
@@ -252,6 +255,9 @@ cat copyparty/httpcli.py | awk '/^[^a-zA-Z0-9]+def / {printf "%s\n%s\n\n", f, pl
 # create a folder with symlinks to big files
 for d in /usr /var; do find $d -type f -size +30M 2>/dev/null; done | while IFS= read -r x; do ln -s "$x" big/; done

+# up2k worst-case testfiles: create 64 GiB (256 x 256 MiB) of sparse files; each file takes 1 MiB disk space; each 1 MiB chunk is globally unique
+for f in {0..255}; do echo $f; truncate -s 256M $f; b1=$(printf '%02x' $f); for o in {0..255}; do b2=$(printf '%02x' $o); printf "\x$b1\x$b2" | dd of=$f bs=2 seek=$((o*1024*1024)) conv=notrunc 2>/dev/null; done; done
+
 # py2 on osx
 brew install python@2
 pip install virtualenv
--- a/docs/rice/README.md
+++ b/docs/rice/README.md
@@ -63,6 +63,8 @@ add your own translations by using the english or norwegian one from `browser.js

 the easy way is to open up and modify `browser.js` in your own installation; depending on how you installed copyparty it might be named `browser.js.gz` instead, in which case just decompress it, restart copyparty, and start editing it anyways

+you will be delighted to see inline html in the translation strings; to help prevent syntax errors, there is [a very jank linux script](https://github.com/9001/copyparty/blob/hovudstraum/scripts/tlcheck.sh) which is slightly better than nothing -- just beware the false-positives, so even if it complains it's not necessarily wrong/bad
+
 if you're running `copyparty-sfx.py` then you'll find it at `/tmp/pe-copyparty.1000/copyparty/web` (on linux) or `%TEMP%\pe-copyparty\copyparty\web` (on windows)
 * make sure to keep backups of your work religiously! since that location is volatile af

--- a/docs/versus.md
+++ b/docs/versus.md
@@ -20,6 +20,7 @@ currently up to date with [awesome-selfhosted](https://github.com/awesome-selfho
  * 💾 = what copyparty offers as an alternative
 * 🔵 = similarities
 * ⚠️ = disadvantages (something copyparty does "better")
+* 🔥 = hazards


 ## toc
@@ -37,7 +38,7 @@ currently up to date with [awesome-selfhosted](https://github.com/awesome-selfho
    * [another matrix](#another-matrix)
 * [reviews](#reviews)
    * [copyparty](#copyparty)
-    * [hfs2](#hfs2)
+    * [hfs2](#hfs2) 🔥
    * [hfs3](#hfs3)
    * [nextcloud](#nextcloud)
    * [seafile](#seafile)
@@ -83,8 +84,8 @@ the table headers in the matrixes below are the different softwares, with a quic

 the softwares,
 * `a` = [copyparty](https://github.com/9001/copyparty)
-* `b` = [hfs2](https://rejetto.com/hfs/)
-* `c` = [hfs3](https://github.com/rejetto/hfs)
+* `b` = [hfs2](https://github.com/rejetto/hfs2/) 🔥
+* `c` = [hfs3](https://rejetto.com/hfs/)
 * `d` = [nextcloud](https://github.com/nextcloud/server)
 * `e` = [seafile](https://github.com/haiwen/seafile)
 * `f` = [rclone](https://github.com/rclone/rclone), specifically `rclone serve webdav .`
@@ -152,19 +153,20 @@ symbol legend,
 | feature / software      | a | b | c | d | e | f | g | h | i | j | k | l | m |
 | ----------------------- | - | - | - | - | - | - | - | - | - | - | - | - | - |
 | download folder as zip  | █ | █ | █ | █ | ╱ |   | █ |   | █ | █ | ╱ | █ | ╱ |
-| download folder as tar  | █ |   |   |   |   |   |   |   |   | █ |   |   |   |
-| upload                  | █ | █ | █ | █ | █ | █ | █ | █ | █ | █ | █ | █ | █ |
-| parallel uploads        | █ |   |   | █ | █ |   | • |   | █ |   | █ |   | █ |
-| resumable uploads       | █ |   |   |   |   |   |   |   | █ |   | █ | ╱ |   |
-| upload segmenting       | █ |   |   |   |   |   |   | █ | █ |   | █ | ╱ | █ |
+| download folder as tar  | █ |   |   |   |   |   |   |   |   |   |   |   |   |
+| upload                  | █ | █ | █ | █ | █ | █ | █ | █ | █ | █ | ╱ | █ | █ |
+| parallel uploads        | █ |   |   | █ | █ |   | • |   | █ | █ | █ |   | █ |
+| resumable uploads       | █ |   | █ |   |   |   |   |   | █ | █ | █ | ╱ |   |
+| upload segmenting       | █ |   |   |   |   |   |   | █ | █ | █ | █ | ╱ | █ |
 | upload acceleration     | █ |   |   |   |   |   |   |   | █ |   | █ |   |   |
 | upload verification     | █ |   |   | █ | █ |   |   |   | █ |   |   |   |   |
 | upload deduplication    | █ |   |   |   | █ |   |   |   | █ |   |   |   |   |
 | upload a 999 TiB file   | █ |   |   |   | █ | █ | • |   | █ |   | █ | ╱ | ╱ |
-| race the beam ("p2p")   | █ |   |   |   |   |   |   |   |   | • |   |   |   |
+| CTRL-V from device      | █ |   |   | █ |   |   |   |   |   |   |   |   |   |
+| race the beam ("p2p")   | █ |   |   |   |   |   |   |   |   |   |   |   |   |
 | keep last-modified time | █ |   |   | █ | █ | █ |   |   |   |   |   | █ |   |
 | upload rules            | ╱ | ╱ | ╱ | ╱ | ╱ |   |   | ╱ | ╱ |   | ╱ | ╱ | ╱ |
-| ┗ max disk usage        | █ | █ |   |   | █ |   |   |   | █ |   |   | █ | █ |
+| ┗ max disk usage        | █ | █ | █ |   | █ |   |   |   | █ |   |   | █ | █ |
 | ┗ max filesize          | █ |   |   |   |   |   |   | █ |   |   | █ | █ | █ |
 | ┗ max items in folder   | █ |   |   |   |   |   |   |   |   |   |   | ╱ |   |
 | ┗ max file age          | █ |   |   |   |   |   |   |   | █ |   |   |   |   |
@@ -173,6 +175,7 @@ symbol legend,
 | ┗ randomize filename    | █ |   |   |   |   |   |   | █ | █ |   |   |   |   |
 | ┗ mimetype reject-list  | ╱ |   |   |   |   |   |   |   | • | ╱ |   | ╱ | • |
 | ┗ extension reject-list | ╱ |   |   |   |   |   |   | █ | • | ╱ |   | ╱ | • |
+| ┗ upload routing        | █ |   |   |   |   |   |   |   |   |   |   |   |   |
 | checksums provided      |   |   |   | █ | █ |   |   |   | █ | ╱ |   |   |   |
 | cloud storage backend   | ╱ | ╱ | ╱ | █ | █ | █ | ╱ |   |   | ╱ | █ | █ | ╱ |

@@ -182,8 +185,13 @@ symbol legend,

 * `upload verification` = uploads are checksummed or otherwise confirmed to have been transferred correctly

+* `CTRL-V from device` = press CTRL-C in Windows Explorer (or whatever) and paste into the webbrowser to upload it
+
 * `race the beam` = files can be downloaded while they're still uploading; downloaders are slowed down such that the uploader is always ahead

+* `upload routing` = depending on filetype / contents / uploader etc., the file can be redirected to another location or otherwise transformed; mitigates limitations such as [sharex#3992](https://github.com/ShareX/ShareX/issues/3992)
+  * copyparty example: [reloc-by-ext](https://github.com/9001/copyparty/tree/hovudstraum/bin/hooks#before-upload)
+
 * `checksums provided` = when downloading a file from the server, the file's checksum is provided for verification client-side

 * `cloud storage backend` = able to serve files from (and write to) s3 or similar cloud services; `╱` means the software can do this with some help from `rclone mount` as a bridge
@@ -213,7 +221,7 @@ symbol legend,
 | serve sftp (ssh)        |   |   |   |   |   | █ |   |   |   |   |   | █ | █ |
 | serve smb/cifs          | ╱ |   |   |   |   | █ |   |   |   |   |   |   |   |
 | serve dlna              |   |   |   |   |   | █ |   |   |   |   |   |   |   |
-| listen on unix-socket   |   |   |   | █ | █ |   | █ | █ | █ |   | █ | █ |   |
+| listen on unix-socket   | █ |   |   | █ | █ |   | █ | █ | █ | █ | █ | █ |   |
 | zeroconf                | █ |   |   |   |   |   |   |   |   |   |   |   | █ |
 | supports netscape 4     | ╱ |   |   |   |   | █ |   |   |   |   | • |   | ╱ |
 | ...internet explorer 6  | ╱ | █ |   | █ |   | █ |   |   |   |   | • |   | ╱ |
@@ -243,7 +251,7 @@ symbol legend,
 | listen multiple ports   | █ |   |   |   |   |   |   |   |   |   |   | █ |   |
 | virtual file system     | █ | █ | █ |   |   |   | █ |   |   |   |   | █ |   |
 | reverse-proxy ok        | █ |   | █ | █ | █ | █ | █ | █ | • | • | • | █ | ╱ |
-| folder-rproxy ok        | █ |   |   |   | █ | █ |   | • | • | • | • |   | • |
+| folder-rproxy ok        | █ |   | █ |   | █ | █ |   | • | • | █ | • |   | • |

 * `folder-rproxy` = reverse-proxying without dedicating an entire (sub)domain, using a subfolder instead
 * `l`/sftpgo:
@@ -266,9 +274,9 @@ symbol legend,
 | per-folder permissions  | ╱ |   |   | █ | █ |   | █ |   | █ | █ | ╱ | █ | █ |
 | per-file permissions    |   |   |   | █ | █ |   | █ |   | █ |   |   |   | █ |
 | per-file passwords      | █ |   |   | █ | █ |   | █ |   | █ |   |   |   | █ |
-| unmap subfolders        | █ |   |   |   |   |   | █ |   |   | █ | ╱ | • |   |
+| unmap subfolders        | █ |   | █ |   |   |   | █ |   |   | █ | ╱ | • |   |
 | index.html blocks list  | ╱ |   |   |   |   |   | █ |   |   | • |   |   |   |
-| write-only folders      | █ |   |   |   |   |   |   |   |   |   | █ | █ |   |
+| write-only folders      | █ |   | █ |   |   |   |   |   |   |   | █ | █ |   |
 | files stored as-is      | █ | █ | █ | █ |   | █ | █ |   |   | █ | █ | █ | █ |
 | file versioning         |   |   |   | █ | █ |   |   |   |   |   |   |   |   |
 | file encryption         |   |   |   | █ | █ | █ |   |   |   |   |   | █ |   |
@@ -298,6 +306,7 @@ symbol legend,
 * `file action event hooks` = run script before/after upload, move, rename, ...
 * `one-way folder sync` = like rsync, optionally deleting unexpected files at target
 * `full sync` = stateful, dropbox-like sync
+* `speed throttle` = rate limiting (per ip, per user, per connection, anything like that)
 * `curl-friendly ls` = returns a [sortable plaintext folder listing](https://user-images.githubusercontent.com/241032/215322619-ea5fd606-3654-40ad-94ee-2bc058647bb2.png) when curled
 * `curl-friendly upload` = uploading with curl is just `curl -T some.bin http://.../`
 * `a`/copyparty remarks:
@@ -323,14 +332,14 @@ symbol legend,
 | feature / software      | a | b | c | d | e | f | g | h | i | j | k | l | m |
 | ----------------------  | - | - | - | - | - | - | - | - | - | - | - | - | - |
 | single-page app         | █ |   | █ | █ | █ |   |   | █ | █ | █ | █ |   | █ |
-| themes                  | █ | █ |   | █ |   |   |   |   | █ |   |   |   |   |
+| themes                  | █ | █ | █ | █ |   |   |   |   | █ |   |   |   |   |
 | directory tree nav      | █ | ╱ |   |   | █ |   |   |   | █ |   | ╱ |   |   |
 | multi-column sorting    | █ |   |   |   |   |   |   |   |   |   |   |   |   |
 | thumbnails              | █ |   |   | ╱ | ╱ |   |   | █ | █ | ╱ |   |   | █ |
 | ┗ image thumbnails      | █ |   |   | █ | █ |   |   | █ | █ | █ |   |   | █ |
 | ┗ video thumbnails      | █ |   |   | █ | █ |   |   |   | █ |   |   |   | █ |
 | ┗ audio spectrograms    | █ |   |   |   |   |   |   |   |   |   |   |   |   |
-| audio player            | █ |   |   | █ | █ |   |   |   | █ | ╱ |   |   | █ |
+| audio player            | █ |   | ╱ | █ | █ |   |   |   | █ | ╱ |   |   | █ |
 | ┗ gapless playback      | █ |   |   |   |   |   |   |   | • |   |   |   |   |
 | ┗ audio equalizer       | █ |   |   |   |   |   |   |   |   |   |   |   |   |
 | ┗ waveform seekbar      | █ |   |   |   |   |   |   |   |   |   |   |   |   |
@@ -348,16 +357,16 @@ symbol legend,
 | search by custom parser | █ |   |   |   |   |   |   |   |   |   |   |   |   |
 | find local file         | █ |   |   |   |   |   |   |   |   |   |   |   |   |
 | undo recent uploads     | █ |   |   |   |   |   |   |   |   |   |   |   |   |
-| create directories      | █ |   |   | █ | █ | ╱ | █ | █ | █ | █ | █ | █ | █ |
-| image viewer            | █ |   |   | █ | █ |   |   |   | █ | █ | █ |   | █ |
+| create directories      | █ |   | █ | █ | █ | ╱ | █ | █ | █ | █ | █ | █ | █ |
+| image viewer            | █ |   | █ | █ | █ |   |   |   | █ | █ | █ |   | █ |
 | markdown viewer         | █ |   |   |   | █ |   |   |   | █ | ╱ | ╱ |   | █ |
 | markdown editor         | █ |   |   |   | █ |   |   |   | █ | ╱ | ╱ |   | █ |
 | readme.md in listing    | █ |   |   | █ |   |   |   |   |   |   |   |   |   |
 | rename files            | █ | █ | █ | █ | █ | ╱ | █ |   | █ | █ | █ | █ | █ |
 | batch rename            | █ |   |   |   |   |   |   |   | █ |   |   |   |   |
 | cut / paste files       | █ | █ |   | █ | █ |   |   |   | █ |   |   |   | █ |
-| move files              | █ | █ |   | █ | █ |   | █ |   | █ | █ | █ |   | █ |
-| delete files            | █ | █ |   | █ | █ | ╱ | █ | █ | █ | █ | █ | █ | █ |
+| move files              | █ | █ | █ | █ | █ |   | █ |   | █ | █ | █ |   | █ |
+| delete files            | █ | █ | █ | █ | █ | ╱ | █ | █ | █ | █ | █ | █ | █ |
 | copy files              |   |   |   |   | █ |   |   |   | █ | █ | █ |   | █ |

 * `single-page app` = multitasking; possible to continue navigating while uploading
@@ -367,8 +376,12 @@ symbol legend,
 * `undo recent uploads` = accounts without delete permissions have a time window where they can undo their own uploads
 * `a`/copyparty has teeny-tiny skips playing gapless albums depending on audio codec (opus best)
 * `b`/hfs2 has a very basic directory tree view, not showing sibling folders
+* `c`/hfs3 remarks:
+  * audio playback does not continue into next song
 * `f`/rclone can do some file management (mkdir, rename, delete) when hosting througn webdav
-* `j`/filebrowser has a plaintext viewer/editor
+* `j`/filebrowser remarks:
+  * audio playback does not continue into next song
+  * plaintext viewer/editor
 * `k`/filegator directory tree is a modal window


@@ -424,6 +437,7 @@ symbol legend,
  * 💾 are what copyparty offers as an alternative
 * 🔵 are similarities
 * ⚠️ are disadvantages (something copyparty does "better")
+* 🔥 are hazards

 ## [copyparty](https://github.com/9001/copyparty)
 * resumable uploads which are verified server-side
@@ -431,8 +445,9 @@ symbol legend,
  * both of the above are surprisingly uncommon features
 * very cross-platform (python, no dependencies)

-## [hfs2](https://rejetto.com/hfs/)
-* the OG, the legend
+## [hfs2](https://github.com/rejetto/hfs2/)
+* the OG, the legend (now replaced by [hfs3](#hfs3))
+* 🔥 hfs2 is dead and dangerous! unfixed RCE: [info](https://github.com/rejetto/hfs2/issues/44), [info](https://github.com/drapid/hfs/issues/3), [info](https://asec.ahnlab.com/en/67650/)
 * ⚠️ uploads not resumable / accelerated / integrity-checked
  * ⚠️ on cloudflare: max upload size 100 MiB
 * ⚠️ windows-only
@@ -440,10 +455,19 @@ symbol legend,
 * vfs with gui config, per-volume permissions
 * starting to show its age, hence the rewrite:

-## [hfs3](https://github.com/rejetto/hfs)
+## [hfs3](https://rejetto.com/hfs/)
 * nodejs; cross-platform
 * vfs with gui config, per-volume permissions
-* still early development, let's revisit later
+* 🔵 uploads are resumable
+* ⚠️ uploads are not segmented; max upload size 100 MiB on cloudflare
+* ⚠️ uploads are not accelerated (copyparty is 3x faster across the atlantic)
+* ⚠️ uploads are not integrity-checked
+* ⚠️ copies the file after upload; need twice filesize free disk space
+* ⚠️ doesn't support crazy filenames
+* ✅ config GUI
+* ✅ download counter
+* ✅ watch active connections
+* ✅ plugins

 ## [nextcloud](https://github.com/nextcloud/server)
 * php, mariadb
@@ -497,6 +521,7 @@ symbol legend,
 * rust; cross-platform (windows, linux, macos)
 * ⚠️ uploads not resumable / accelerated / integrity-checked
  * ⚠️ on cloudflare: max upload size 100 MiB
+  * ⚠️ across the atlantic, copyparty is 3x faster
 * ⚠️ doesn't support crazy filenames
 * ✅ per-url access control (copyparty is per-volume)
 * 🔵 basic but really snappy ui
@@ -539,8 +564,10 @@ symbol legend,

 ## [filebrowser](https://github.com/filebrowser/filebrowser)
 * go; cross-platform (windows, linux, mac)
-* ⚠️ uploads not resumable / accelerated / integrity-checked
-  * ⚠️ on cloudflare: max upload size 100 MiB
+* 🔵 uploads are resumable and segmented
+* 🔵 multiple files are uploaded in parallel, but...
+  * ⚠️ big files are not accelerated (copyparty is 5x faster across the atlantic)
+* ⚠️ uploads are not integrity-checked
 * ⚠️ http only; no webdav / ftp / zeroconf
 * ⚠️ doesn't support crazy filenames
 * ⚠️ no directory tree nav
@@ -550,12 +577,14 @@ symbol legend,
  * ⚠️ but no directory tree for navigation
 * ✅ user signup
 * ✅ command runner / remote shell
-* 🔵 supposed to have write-only folders but couldn't get it to work
+* ✅ more efficient; can handle around twice as much simultaneous traffic

 ## [filegator](https://github.com/filegator/filegator)
-* go; cross-platform (windows, linux, mac)
+* php; cross-platform (windows, linux, mac)
 * 🔵 *it has upload segmenting and acceleration*
  * ⚠️ but uploads are still not integrity-checked
+  * ⚠️ on copyparty, uploads are 40x faster
+    * compared to the official filegator docker example which might be bad
 * ⚠️ http only; no webdav / ftp / zeroconf
 * ⚠️ does not support symlinks
 * ⚠️ expensive download-as-zip feature
@@ -566,6 +595,7 @@ symbol legend,
 * go; cross-platform (windows, linux, mac)
 * ⚠️ http uploads not resumable / accelerated / integrity-checked
  * ⚠️ on cloudflare: max upload size 100 MiB
+  * ⚠️ across the atlantic, copyparty is 2.5x faster
  * 🔵 sftp uploads are resumable
 * ⚠️ web UI is very minimal + a bit slow
  * ⚠️ no thumbnails / image viewer / audio player
@@ -573,6 +603,7 @@ symbol legend,
 * ⚠️ no filesystem indexing / search
 * ⚠️ doesn't run on phones, tablets
 * ⚠️ no zeroconf (mdns/ssdp)
+* ⚠️ impractical directory URLs
 * ⚠️ AGPL licensed
 * 🔵 ftp, ftps, webdav
 * ✅ sftp server
@@ -589,11 +620,13 @@ symbol legend,
 ## [arozos](https://github.com/tobychui/arozos)
 * big suite of applications similar to [kodbox](#kodbox), copyparty is better at downloading/uploading/music/indexing but arozos has other advantages
 * go; primarily linux (limited support for windows)
+* ⚠️ needs root
 * ⚠️ uploads not resumable / integrity-checked
 * ⚠️ uploading small files to copyparty is 2.7x faster
 * ⚠️ uploading large files to copyparty is at least 10% faster
  * arozos is websocket-based, 512 KiB chunks; writes each chunk to separate files and then merges
  * copyparty splices directly into the final file; faster and better for the HDD and filesystem
+* ⚠️ across the atlantic, uploading to copyparty is 6x faster
 * ⚠️ no directory tree navpane; not as easy to navigate
 * ⚠️ download-as-zip is not streaming; creates a temp.file on the server
 * ⚠️ not self-contained (pulls from jsdelivr)
--- a/scripts/docker/Dockerfile.ac
+++ b/scripts/docker/Dockerfile.ac
@@ -5,19 +5,16 @@ LABEL   org.opencontainers.image.url="https://github.com/9001/copyparty" \
        org.opencontainers.image.licenses="MIT" \
        org.opencontainers.image.title="copyparty-ac" \
        org.opencontainers.image.description="copyparty with Pillow and FFmpeg (image/audio/video thumbnails, audio transcoding, media tags)"
-ENV     PYTHONPYCACHEPREFIX=/tmp/pyc \
-        XDG_CONFIG_HOME=/cfg
+ENV     XDG_CONFIG_HOME=/cfg

 RUN     apk --no-cache add !pyc \
-            wget \
-            py3-argon2-cffi py3-pillow \
-            ffmpeg \
-        && rm -rf /tmp/pyc \
-        && mkdir /cfg /w \
-        && chmod 777 /cfg /w \
-        && echo % /cfg > initcfg
+            tzdata wget \
+            py3-jinja2 py3-argon2-cffi py3-pillow \
+            ffmpeg
+
+COPY    i/dist/copyparty-sfx.py innvikler.sh ./
+RUN     ash innvikler.sh && rm innvikler.sh

-COPY    i/dist/copyparty-sfx.py ./
 WORKDIR /w
 EXPOSE  3923
-ENTRYPOINT ["python3", "/z/copyparty-sfx.py", "--no-crt", "-c", "/z/initcfg"]
+ENTRYPOINT ["python3", "-m", "copyparty", "--no-crt", "-c", "/z/initcfg"]
--- a/scripts/docker/Dockerfile.dj
+++ b/scripts/docker/Dockerfile.dj
@@ -5,15 +5,14 @@ LABEL   org.opencontainers.image.url="https://github.com/9001/copyparty" \
        org.opencontainers.image.licenses="MIT" \
        org.opencontainers.image.title="copyparty-dj" \
        org.opencontainers.image.description="copyparty with all optional dependencies, including musical key / bpm detection"
-ENV     PYTHONPYCACHEPREFIX=/tmp/pyc \
-        XDG_CONFIG_HOME=/cfg
+ENV     XDG_CONFIG_HOME=/cfg

 COPY    i/bin/mtag/install-deps.sh ./
 COPY    i/bin/mtag/audio-bpm.py /mtag/
 COPY    i/bin/mtag/audio-key.py /mtag/
 RUN     apk add -U !pyc \
-            wget \
-            py3-argon2-cffi py3-pillow py3-pip py3-cffi \
+            tzdata wget \
+            py3-jinja2 py3-argon2-cffi py3-pillow py3-pip py3-cffi \
            ffmpeg \
            vips-jxl vips-heif vips-poppler vips-magick \
            py3-numpy fftw libsndfile \
@@ -27,18 +26,12 @@ RUN     apk add -U !pyc \
        && python3 -m pip install pyvips \
        && bash install-deps.sh \
        && apk del py3-pip .bd \
-        && rm -rf /var/cache/apk/* /tmp/pyc \
        && chmod 777 /root \
-        && ln -s /root/vamp /root/.local / \
-        && mkdir /cfg /w \
-        && chmod 777 /cfg /w \
-        && echo % /cfg > initcfg
+        && ln -s /root/vamp /root/.local /
+
+COPY    i/dist/copyparty-sfx.py innvikler.sh ./
+RUN     ash innvikler.sh && rm innvikler.sh

-COPY    i/dist/copyparty-sfx.py ./
 WORKDIR /w
 EXPOSE  3923
-ENTRYPOINT ["python3", "/z/copyparty-sfx.py", "--no-crt", "-c", "/z/initcfg"]
-
-# size: 286 MB
-# bpm/key: 529 sec
-# idx-bench: 2352 MB/s
+ENTRYPOINT ["python3", "-m", "copyparty", "--no-crt", "-c", "/z/initcfg"]
--- a/scripts/docker/Dockerfile.im
+++ b/scripts/docker/Dockerfile.im
@@ -5,18 +5,15 @@ LABEL   org.opencontainers.image.url="https://github.com/9001/copyparty" \
        org.opencontainers.image.licenses="MIT" \
        org.opencontainers.image.title="copyparty-im" \
        org.opencontainers.image.description="copyparty with Pillow and Mutagen (image thumbnails, media tags)"
-ENV     PYTHONPYCACHEPREFIX=/tmp/pyc \
-        XDG_CONFIG_HOME=/cfg
+ENV     XDG_CONFIG_HOME=/cfg

 RUN     apk --no-cache add !pyc \
-            wget \
-            py3-argon2-cffi py3-pillow py3-mutagen \
-        && rm -rf /tmp/pyc \
-        && mkdir /cfg /w \
-        && chmod 777 /cfg /w \
-        && echo % /cfg > initcfg
+            tzdata wget \
+            py3-jinja2 py3-argon2-cffi py3-pillow py3-mutagen
+
+COPY    i/dist/copyparty-sfx.py innvikler.sh ./
+RUN     ash innvikler.sh && rm innvikler.sh

-COPY    i/dist/copyparty-sfx.py ./
 WORKDIR /w
 EXPOSE  3923
-ENTRYPOINT ["python3", "/z/copyparty-sfx.py", "--no-crt", "-c", "/z/initcfg"]
+ENTRYPOINT ["python3", "-m", "copyparty", "--no-crt", "-c", "/z/initcfg"]
--- a/scripts/docker/Dockerfile.iv
+++ b/scripts/docker/Dockerfile.iv
@@ -5,12 +5,11 @@ LABEL   org.opencontainers.image.url="https://github.com/9001/copyparty" \
        org.opencontainers.image.licenses="MIT" \
        org.opencontainers.image.title="copyparty-iv" \
        org.opencontainers.image.description="copyparty with Pillow, FFmpeg, libvips (image/audio/video thumbnails, audio transcoding, media tags)"
-ENV     PYTHONPYCACHEPREFIX=/tmp/pyc \
-        XDG_CONFIG_HOME=/cfg
+ENV     XDG_CONFIG_HOME=/cfg

 RUN     apk add -U !pyc \
-            wget \
-            py3-argon2-cffi py3-pillow py3-pip py3-cffi \
+            tzdata wget \
+            py3-jinja2 py3-argon2-cffi py3-pillow py3-pip py3-cffi \
            ffmpeg \
            vips-jxl vips-heif vips-poppler vips-magick \
        && apk add -t .bd \
@@ -18,13 +17,11 @@ RUN     apk add -U !pyc \
            python3-dev py3-wheel \
        && rm -f /usr/lib/python3*/EXTERNALLY-MANAGED \
        && python3 -m pip install pyvips \
-        && apk del py3-pip .bd \
-        && rm -rf /var/cache/apk/* /tmp/pyc \
-        && mkdir /cfg /w \
-        && chmod 777 /cfg /w \
-        && echo % /cfg > initcfg
+        && apk del py3-pip .bd
+
+COPY    i/dist/copyparty-sfx.py innvikler.sh ./
+RUN     ash innvikler.sh && rm innvikler.sh

-COPY    i/dist/copyparty-sfx.py ./
 WORKDIR /w
 EXPOSE  3923
-ENTRYPOINT ["python3", "/z/copyparty-sfx.py", "--no-crt", "-c", "/z/initcfg"]
+ENTRYPOINT ["python3", "-m", "copyparty", "--no-crt", "-c", "/z/initcfg"]
--- a/scripts/docker/Dockerfile.min
+++ b/scripts/docker/Dockerfile.min
@@ -5,17 +5,14 @@ LABEL   org.opencontainers.image.url="https://github.com/9001/copyparty" \
        org.opencontainers.image.licenses="MIT" \
        org.opencontainers.image.title="copyparty-min" \
        org.opencontainers.image.description="just copyparty, no thumbnails / media tags / audio transcoding"
-ENV     PYTHONPYCACHEPREFIX=/tmp/pyc \
-        XDG_CONFIG_HOME=/cfg
+ENV     XDG_CONFIG_HOME=/cfg

 RUN     apk --no-cache add !pyc \
-            python3 \
-        && rm -rf /tmp/pyc \
-        && mkdir /cfg /w \
-        && chmod 777 /cfg /w \
-        && echo % /cfg > initcfg
+            py3-jinja2
+
+COPY    i/dist/copyparty-sfx.py innvikler.sh ./
+RUN     ash innvikler.sh && rm innvikler.sh

-COPY    i/dist/copyparty-sfx.py ./
 WORKDIR /w
 EXPOSE  3923
-ENTRYPOINT ["python3", "/z/copyparty-sfx.py", "--no-crt", "--no-thumb", "-c", "/z/initcfg"]
+ENTRYPOINT ["python3", "-m", "copyparty", "--no-crt", "--no-thumb", "-c", "/z/initcfg"]
--- a/scripts/docker/README.md
+++ b/scripts/docker/README.md
@@ -22,6 +22,11 @@ this example is also available as a podman-compatible [docker-compose yaml](http
 i'm not very familiar with containers, so let me know if this section could be better 🙏


+## portainer
+
+* there is a [portainer howto](https://github.com/9001/copyparty/blob/hovudstraum/docs/examples/docker/portainer.md) which is mostly untested
+
+
 ## configuration

 > this section basically explains how the [docker-compose yaml](https://github.com/9001/copyparty/blob/hovudstraum/docs/examples/docker/basic-docker-compose) works, so you may look there instead
--- a/scripts/docker/devnotes.md
+++ b/scripts/docker/devnotes.md
@@ -17,3 +17,19 @@ but I don't really know what i'm doing here 💩
  `podman login docker.io`  
  `podman login ghcr.io -u 9001`  
  [about gchq](https://docs.github.com/en/packages/working-with-a-github-packages-registry/working-with-the-container-registry) (takes a classic token as password)
+
+
+## building on alpine
+
+```bash
+apk add podman{,-docker}
+rc-update add cgroups
+service cgroups start
+vim /etc/containers/storage.conf  # driver = "btrfs"
+modprobe tun
+echo ed:100000:65536 >/etc/subuid
+echo ed:100000:65536 >/etc/subgid
+apk add qemu-openrc qemu-tools qemu-{arm,armeb,aarch64,s390x,ppc64le}
+rc-update add qemu-binfmt
+service qemu-binfmt start
+```
--- a/scripts/docker/innvikler.sh
+++ b/scripts/docker/innvikler.sh
@@ -0,0 +1,46 @@
+#!/bin/ash
+set -ex
+
+# cleanup for flavors with python build steps (dj/iv)
+rm -rf /var/cache/apk/* /root/.cache
+
+# initial config; common for all flavors
+mkdir /cfg /w
+chmod 777 /cfg /w
+echo % /cfg > initcfg
+
+# unpack sfx and dive in
+python3 copyparty-sfx.py --version
+cd /tmp/pe-copyparty.0
+
+# steal the stuff we need
+mv copyparty partftpy ftp/* /usr/lib/python3.*/site-packages/
+
+# golf
+cd /usr/lib/python3.*/
+rm -rf \
+  /tmp/pe-* /z/copyparty-sfx.py \
+  ensurepip pydoc_data turtle.py turtledemo lib2to3
+
+# drop bytecode
+find / -xdev -name __pycache__ -print0 | xargs -0 rm -rf
+
+# build the stuff we want
+python3 -m compileall -qj4 site-packages sqlite3 xml
+
+# drop the stuff we dont
+find -name __pycache__ |
+  grep -E 'ty/web/|/pycpar' |
+  tr '\n' '\0' | xargs -0 rm -rf
+
+# two-for-one:
+# 1) smoketest copyparty even starts
+# 2) build any bytecode we missed
+# this tends to race other builders (alle gode ting er tre)
+cd /z
+python3 -m copyparty \
+  --ign-ebind -p$((1024+RANDOM)),$((1024+RANDOM)),$((1024+RANDOM)) \
+  --no-crt -qi127.1 --exit=idx -e2dsa -e2ts
+
+# output from -e2d
+rm -rf .hist
--- a/scripts/docker/make.sh
+++ b/scripts/docker/make.sh
@@ -6,6 +6,8 @@ set -e
    exit 1
 }

+suf=-b1
+suf=
 sarchs="386 amd64 arm/v7 arm64/v8 ppc64le s390x"
 archs="amd64 arm s390x 386 arm64 ppc64le"
 imgs="dj iv min im ac"
@@ -98,16 +100,17 @@ filt=
            aa="$(printf '%11s' $a-$i)"

            # arm takes forever so make it top priority
-            [ ${a::3} == arm ] && nice= || nice=nice
+            [ ${a::3} == arm ] && nice= || nice=-n20

            # --pull=never does nothing at all btw
            (set -x
-            $nice podman build \
+            nice $nice podman build \
+                --squash \
                --pull=never \
                --from localhost/alpine-$a \
-                -t copyparty-$i-$a \
+                -t copyparty-$i-$a$suf \
                -f Dockerfile.$i . ||
-                    (echo $? $i-$a >> err)
+                    (echo $? $i-$a >> err; printf '%096d\n' $(seq 1 42))
            rm -f .blk
            ) 2> >(tee $a.err | sed "s/^/$aa:/" >&2) > >(tee $a.out | sed "s/^/$aa:/") &
        done
@@ -134,9 +137,10 @@ filt=
        variants=
        for a in $archs; do
            [[ " ${ngs[*]} " =~ " $i-$a " ]] && continue
-            variants="$variants containers-storage:localhost/copyparty-$i-$a"
+            variants="$variants containers-storage:localhost/copyparty-$i-$a$suf"
        done
-        podman manifest create copyparty-$i $variants
+        podman manifest rm copyparty-$i$suf || echo "(that's fine btw)"
+        podman manifest create copyparty-$i$suf $variants
    done
 }

--- a/scripts/help2html.py
+++ b/scripts/help2html.py
@@ -0,0 +1,81 @@
+#!/usr/bin/env python3
+
+import re
+import subprocess as sp
+
+
+# to convert the copyparty --help to html, run this in xfce4-terminal @ 140x43:
+_ = r""""
+echo; for a in '' -bind -accounts -flags -handlers -hooks -urlform -exp -ls -dbd -pwhash -zm; do
+./copyparty-sfx.py --help$a 2>/dev/null; printf '\n\n\n%0139d\n\n\n'; done  # xfce4-terminal @ 140x43
+"""
+# click [edit] => [select all]
+# click [edit] => [copy as html]
+# and then run this script
+
+
+def readclip():
+    cmds = [
+        "xsel -ob",
+        "xclip -selection CLIPBOARD -o",
+        "pbpaste",
+    ]
+    for cmd in cmds:
+        try:
+            return sp.check_output(cmd.split()).decode("utf-8")
+        except:
+            pass
+
+
+def cnv(src):
+    yield '<html style="background:#222;color:#fff"><body>'
+    skip_sfx = False
+    in_sfx = 0
+    in_salt = 0
+
+    while True:
+        ln = next(src)
+        if "<font" in ln:
+            if not ln.startswith("<pre>"):
+                ln = "<pre>" + ln
+            yield ln
+            break
+
+    for ln in src:
+        ln = ln.rstrip()
+        if re.search(r"^<font[^>]+>copyparty v[0-9]", ln):
+            in_sfx = 3
+        if in_sfx:
+            in_sfx -= 1
+            if not skip_sfx:
+                yield ln
+            continue
+        if '">uuid:' in ln:
+            ln = re.sub(r">uuid:[0-9a-f-]{36}<", ">autogenerated<", ln)
+        if "-salt SALT" in ln:
+            in_salt = 3
+        if in_salt:
+            in_salt -= 1
+            t = ln
+            ln = re.sub(r">[0-9a-zA-Z/+]{24}<", ">24-character-autogenerated<", ln)
+            ln = re.sub(r">[0-9a-zA-Z/+]{40}<", ">40-character-autogenerated<", ln)
+            if t != ln:
+                in_salt = 0
+        ln = ln.replace(">/home/ed/", ">~/")
+        if ln.startswith("0" * 20):
+            skip_sfx = True
+        yield ln
+
+    yield "</pre>eof</body></html>"
+
+
+def main():
+    src = readclip()
+    src = re.split("0{100,200}", src[::-1], 1)[1][::-1]
+    with open("helptext.html", "wb") as fo:
+        for ln in cnv(iter(src.split("\n")[:-3])):
+            fo.write(ln.encode("utf-8") + b"\r\n")
+
+
+if __name__ == "__main__":
+    main()
--- a/scripts/help2txt.sh
+++ b/scripts/help2txt.sh
@@ -0,0 +1,26 @@
+#!/bin/bash
+set -e
+
+( xsel -ob | sed -r '
+s`/home/ed/`~/`;
+s/uuid:[0-9a-f-]{36}/autogenerated/;
+s/(-salt SALT.*default: )[0-9a-zA-Z/+]{24}\)/\124-character-autogenerated)/;
+s/(-salt SALT.*default: )[0-9a-zA-Z/+]{40}\)/\140-character-autogenerated)/;
+' | awk '
+/^copyparty/{a=1} !a{next}
+/^0{20}/{b=1} b&&/^copyparty v[0-9]+\./{s=3}
+s{s-=1;next} 1' |
+head -n-6; echo eof ) >helptext.txt
+exit 0
+
+
+# =====================================================================
+# end of script;  below is the explanation how to use this:
+
+
+# first open an infinitely wide console (this is why you own an ultrawide) and copypaste this into it:
+for a in '' -bind -accounts -flags -handlers -hooks -urlform -exp -ls -dbd -pwhash -zm; do
+./copyparty-sfx.py --help$a 2>/dev/null; printf '\n\n\n%0255d\n\n\n'; done
+
+# then copypaste all of the output by pressing ctrl-shift-a, ctrl-shift-c
+# and finally actually run this script which should produce helptext.txt
--- a/scripts/make-sfx.sh
+++ b/scripts/make-sfx.sh
@@ -3,6 +3,7 @@ set -e
 echo

 berr() { p=$(head -c 72 </dev/zero | tr '\0' =); printf '\n%s\n\n' $p; cat; printf '\n%s\n\n' $p; }
+aerr() { printf '%s\n' "$*" | berr; }

 help() { exec cat <<'EOF'

@@ -28,9 +29,11 @@ help() { exec cat <<'EOF'
 #
 # `no-tfp` saves ~10k by removing the tftp server, disabling --tftp
 #
+# `no-zm` saves ~7k by removing the zeroconf mDNS server
+#
 # `no-smb` saves ~3.5k by removing the smb / cifs server
 #
-# `no-zm` saves ~k by removing the zeroconf mDNS server
+# `no-pf` saves ~2.8k by removing the option to download partyfuse
 #
 # _____________________________________________________________________
 # web features:
@@ -52,10 +55,15 @@ help() { exec cat <<'EOF'
 #
 # `ign-wd` allows building an sfx without webdeps
 #
-# ---------------------------------------------------------------------
-#
+# _____________________________________________________________________
 # if you are on windows, you can use msys2:
 #   PATH=/c/Users/$USER/AppData/Local/Programs/Python/Python310:"$PATH" ./make-sfx.sh fast
+#
+# _____________________________________________________________________
+# some usage examples:
+#   ./scripts/make-sfx.sh lang eng no-cm no-hl no-dd no-fnt no-smb no-pf
+#   ./scripts/rls.sh sfx  lang eng no-cm no-hl no-dd no-fnt no-smb no-pf
+#   (reduces v1.14.2 from 700k to 495k)

 EOF
 }
@@ -112,6 +120,7 @@ while [ ! -z "$1" ]; do
 		no-tfp) no_tfp=1 ; ;;
 		no-smb) no_smb=1 ; ;;
 		no-zm)  no_zm=1  ; ;;
+		no-pf)  no_pf=1  ; ;;
 		no-fnt) no_fnt=1 ; ;;
 		no-hl)  no_hl=1  ; ;;
 		no-dd)  no_dd=1  ; ;;
@@ -119,7 +128,6 @@ while [ ! -z "$1" ]; do
 		dl-wd)  dl_wd=1  ; ;;
 		ign-wd) ign_wd=1 ; ;;
 		fast)   zopf=    ; ;;
-		ultra)  ultra=1  ; ;;
 		lang)   shift;langs="$1"; ;;
 		*)      help     ; ;;
 	esac
@@ -202,14 +210,14 @@ necho() {
 	mv {markupsafe,jinja2} j2/

 	necho collecting pyftpdlib
-	f="../build/pyftpdlib-1.5.9.tar.gz"
+	f="../build/pyftpdlib-1.5.10.tar.gz"
 	[ -e "$f" ] ||
-		(url=https://github.com/giampaolo/pyftpdlib/archive/refs/tags/release-1.5.9.tar.gz;
+		(url=https://files.pythonhosted.org/packages/cf/31/8d910cf40317dd0db74ba0b8558d0dee23c8b002468c14d3a5dec0e6e9fd/pyftpdlib-1.5.10.tar.gz;
 		wget -O$f "$url" || curl -L "$url" >$f)

 	tar -zxf $f
-	mv pyftpdlib-release-*/pyftpdlib .
-	rm -rf pyftpdlib-release-* pyftpdlib/test
+	mv pyftpdlib-*/pyftpdlib .
+	rm -rf pyftpdlib-* pyftpdlib/test
 	for f in pyftpdlib/_async{hat,ore}.py; do
 		[ -e "$f" ] || continue;
 		iawk 'NR<4||NR>27||!/^#/;NR==4{print"# license: https://opensource.org/licenses/ISC\n"}' $f
@@ -413,7 +421,7 @@ rm have

 ised /fork_process/d ftp/pyftpdlib/servers.py
 iawk '/^class _Base/{s=1}!s' ftp/pyftpdlib/authorizers.py
-iawk '/^ {0,4}[^ ]/{s=0}/^ {4}def (serve_forever|_loop)/{s=1}!s' ftp/pyftpdlib/servers.py
+iawk '/^ {0,4}[a-zA-Z]/{s=0}/^ {4}def (serve_forever|_loop)/{s=1}!s' ftp/pyftpdlib/servers.py
 rm -f ftp/pyftpdlib/{__main__,prefork}.py

 [ $no_ftp ] &&
@@ -428,6 +436,9 @@ rm -f ftp/pyftpdlib/{__main__,prefork}.py
 [ $no_zm ] &&
 	rm -rf copyparty/mdns.py copyparty/stolen/dnslib

+[ $no_pf ] &&
+	rm -rf copyparty/web/a/partyfuse.py
+
 [ $no_cm ] && {
 	rm -rf copyparty/web/mde.* copyparty/web/deps/easymde*
 	echo h > copyparty/web/mde.html
@@ -451,11 +462,16 @@ rm -f ftp/pyftpdlib/{__main__,prefork}.py
 	ised 's/(cursor: ?)url\([^)]+\), ?(pointer)/\1\2/; s/[0-9]+% \{cursor:[^}]+\}//; s/animation: ?cursor[^};]+//' $f
 }

-[ $langs ] &&
+[ $langs ] && {
+	echo $langs | grep -q eng || {
+		langs="eng|$langs"
+		aerr "ERROR: removing english is not supported; will do this instead: $langs"
+	}
 	for f in copyparty/web/{browser.js,splash.js}; do
 		gzip -d "$f.gz" || true
-		iawk '/^\}/{l=0} !l; /^var Ls =/{l=1;next} o; /^\t["}]/{o=0} /^\t"'"$langs"'"/{o=1;print}' $f
+		iawk '/^\}/{l=0} !l; /^var Ls =/{l=1;next} !l{next} o; /^\t["}]/{o=0} /^\t"'"$langs"'"/{o=1;print}' $f
 	done
+}

 [ ! $repack ] && {
 	# uncomment
@@ -593,7 +609,7 @@ pc="bzip2 -"; pe=bz2
 [ $use_gzz ] && pc="pigz -11 -I$use_gzz" && pe=gz

 echo compressing tar
-for n in {2..9}; do cp tar t.$n; nice $pc$n t.$n & done; wait
+for n in {2..9}; do cp tar t.$n; nice -n20 $pc$n t.$n & done; wait
 minf=$(for f in t.*.$pe; do
 	s1=$(wc -c <$f)
 	s2=$(tr -d '\r\n\0' <$f | wc -c)
--- a/scripts/pyinstaller/deps.sha512
+++ b/scripts/pyinstaller/deps.sha512
@@ -34,6 +34,6 @@ d1420c8417fad7888766dd26b9706a87c63e8f33dceeb8e26d0056d5127b0b3ed9272e44b4b76113
 8a6e2b13a2ec4ef914a5d62aad3db6464d45e525a82e07f6051ed10474eae959069e165dba011aefb8207cdfd55391d73d6f06362c7eb247b08763106709526e  mutagen-1.47.0-py3-none-any.whl
 0203ec2551c4836696cfab0b2c9fff603352f03fa36e7476e2e1ca7ec57a3a0c24bd791fcd92f342bf817f0887854d9f072e0271c643de4b313d8c9569ba8813  packaging-24.1-py3-none-any.whl
 2be320b4191f208cdd6af183c77ba2cf460ea52164ee45ac3ff17d6dfa57acd9deff016636c2dd42a21f4f6af977d5f72df7dacf599bebcf41757272354d14c1  pillow-10.4.0-cp312-cp312-win_amd64.whl
-776378f5414efd26ec8a1cb3228a7b5fdf6afca3fa335a0e9b071266d55d9d9e66ee157c25a468a05bfa70ccd33c48b101998523fc6ff6bcf5e82a1d81ed0af8  pyinstaller-6.9.0-py3-none-win_amd64.whl
-c0af77d2a57cb063ab038dc986ed3582bc5acc8c8bd91d726101935d6388f50854ddbca26bc846ed5d1022cdee4d96242938c66f0ddc4565c36b60d691064db8  pyinstaller_hooks_contrib-2024.7-py2.py3-none-any.whl
-2f9a11ffae6d9f1ed76bf816f28812fcba71f87080b0c92e52bfccb46243118c5803a7e25dd78003ca7d66501bfcdce8ff7c691c63c0038b0d409ca3842dcc89  python-3.12.4-amd64.exe
+896ddddbd4b85e86e0600cb65eb4c07fbc7f3802d47e7f660411e20b5500831469b97ed4770f25820f4e75cbfac40308da624fd86d4f62e578149d5c276a9cde  pyinstaller-6.10.0-py3-none-win_amd64.whl
+873781decaeef07f6a79b0ed8b9f35f3fa534a1ea0d866991e40278a10818fa5b60c70b0d5828971b045364f1099694cd1e5d5d60d480acb93fcfbfbced4a09e  pyinstaller_hooks_contrib-2024.8-py3-none-any.whl
+37fa7250b10b0c03b87d800bf4f920589649309cb4fbd25864475084bb7873d62b809a4fdeabd06c79f03f33614218eb7e01a9bd796de29dd3b141f1906d588c  python-3.12.6-amd64.exe
--- a/scripts/pyinstaller/notes.txt
+++ b/scripts/pyinstaller/notes.txt
@@ -39,9 +39,9 @@ fns=(
  mutagen-1.47.0-py3-none-any.whl
  packaging-24.1-py3-none-any.whl
  pillow-10.4.0-cp312-cp312-win_amd64.whl
-  pyinstaller-6.9.0-py3-none-win_amd64.whl
-  pyinstaller_hooks_contrib-2024.7-py2.py3-none-any.whl
-  python-3.12.4-amd64.exe
+  pyinstaller-6.10.0-py3-none-win_amd64.whl
+  pyinstaller_hooks_contrib-2024.8-py3-none-any.whl
+  python-3.12.6-amd64.exe
 )
 [ $w7 ] && fns+=(  # u2c stuff
  certifi-2024.2.2-py3-none-any.whl
--- a/scripts/pyinstaller/up2k.sh
+++ b/scripts/pyinstaller/up2k.sh
@@ -25,7 +25,7 @@ grep -E '^from .ssl_ import' $APPDATA/python/python37/site-packages/urllib3/util
    echo golfing
    echo > $APPDATA/python/python37/site-packages/requests/certs.py
    sed -ri 's/^(DEFAULT_CA_BUNDLE_PATH = ).*/\1""/' $APPDATA/python/python37/site-packages/requests/utils.py
-    sed -ri '/^import zipfile$/d' $APPDATA/python/python37/site-packages/requests/utils.py             
+    sed -ri '/^import zipfile$/d' $APPDATA/python/python37/site-packages/requests/utils.py
    sed -ri 's/"idna"//' $APPDATA/python/python37/site-packages/requests/packages.py
    sed -ri 's/import charset_normalizer.*/pass/' $APPDATA/python/python37/site-packages/requests/compat.py
    sed -ri 's/raise.*charset_normalizer.*/pass/' $APPDATA/python/python37/site-packages/requests/__init__.py
--- a/scripts/rls.sh
+++ b/scripts/rls.sh
@@ -1,6 +1,8 @@
 #!/bin/bash
 set -e

+# if specified, keep the following sfx flags last: gz gzz fast
+
 parallel=1

 [ -e make-sfx.sh ] || cd scripts
@@ -35,6 +37,14 @@ f=../dist/copyparty-sfx

 $f$s.py --version >/dev/null

+while [ "$1" ]; do
+    case "$1" in
+        gz*) break;;
+        fast) break;;
+    esac
+    shift
+done
+
 [ $parallel -gt 1 ] && {
    printf '\033[%s' s 2r H "0;1;37;44mbruteforcing sfx size -- press enter to terminate" K u "7m $* " K $'27m\n'
    trap "rm -f .sfx-run; printf '\033[%s' s r u" INT TERM EXIT
--- a/scripts/sfx.ls
+++ b/scripts/sfx.ls
@@ -103,6 +103,9 @@ copyparty/web/mde.html,
 copyparty/web/mde.js,
 copyparty/web/msg.css,
 copyparty/web/msg.html,
+copyparty/web/shares.css,
+copyparty/web/shares.html,
+copyparty/web/shares.js,
 copyparty/web/splash.css,
 copyparty/web/splash.html,
 copyparty/web/splash.js,
--- a/scripts/strip_hints/a.py
+++ b/scripts/strip_hints/a.py
@@ -70,6 +70,10 @@ def uh2(fp):
            continue

        on = True
+
+        if "  # !rm" in ln:
+            continue
+
        lns.append(ln)

    cs = "\n".join(lns)
--- a/scripts/test/tftp.sh
+++ b/scripts/test/tftp.sh
@@ -3,34 +3,39 @@ set -ex

 # PYTHONPATH=.:~/dev/partftpy/ taskset -c 0 python3 -m copyparty -v srv::r -v srv/junk:junk:A --tftp 3969 

-get_src=~/dev/copyparty/srv/palette.flac
-get_fn=${get_src##*/}
+get_src=~/dev/copyparty/srv/ro/palette.flac
+get_fp=ro/${get_src##*/}  # server url
+get_fn=${get_fp##*/}  # just filename

 put_src=~/Downloads/102.zip
 put_dst=~/dev/copyparty/srv/junk/102.zip

+export PATH="$PATH:$HOME/src/atftp-0.8.0"
+
 cd /dev/shm

-echo curl get 1428 v4; curl --tftp-blksize 1428 tftp://127.0.0.1:3969/$get_fn | cmp $get_src || exit 1
-echo curl get 1428 v6; curl --tftp-blksize 1428 tftp://[::1]:3969/$get_fn | cmp $get_src || exit 1
+echo curl get 1428 v4; curl --tftp-blksize 1428 tftp://127.0.0.1:3969/$get_fp | cmp $get_src || exit 1
+echo curl get 1428 v6; curl --tftp-blksize 1428 tftp://[::1]:3969/$get_fp | cmp $get_src || exit 1

 echo curl put 1428 v4; rm -f $put_dst && curl --tftp-blksize 1428 -T $put_src tftp://127.0.0.1:3969/junk/ && cmp $put_src $put_dst || exit 1
 echo curl put 1428 v6; rm -f $put_dst && curl --tftp-blksize 1428 -T $put_src tftp://[::1]:3969/junk/ && cmp $put_src $put_dst || exit 1

-echo atftp get 1428; rm -f $get_fn && ~/src/atftp/atftp --option "blksize 1428" -g -r $get_fn 127.0.0.1 3969 && cmp $get_fn $get_src || exit 1
+echo atftp get 1428; rm -f $get_fn && atftp --option "blksize 1428" -g -r $get_fp -l $get_fn 127.0.0.1 3969 && cmp $get_fn $get_src || exit 1

-echo atftp put 1428; rm -f $put_dst && ~/src/atftp/atftp --option "blksize 1428" 127.0.0.1 3969 -p -l $put_src -r junk/102.zip && cmp $put_src $put_dst || exit 1
+echo atftp put 1428; rm -f $put_dst && atftp --option "blksize 1428" 127.0.0.1 3969 -p -l $put_src -r junk/102.zip && cmp $put_src $put_dst || exit 1

-echo tftp-hpa get; rm -f $put_dst && tftp -v -m binary 127.0.0.1 3969 -c get $get_fn && cmp $get_src $get_fn || exit 1
+echo tftp-hpa get; rm -f $get_fn && tftp -v -m binary 127.0.0.1 3969 -c get $get_fp && cmp $get_src $get_fn || exit 1

 echo tftp-hpa put; rm -f $put_dst && tftp -v -m binary 127.0.0.1 3969 -c put $put_src junk/102.zip && cmp $put_src $put_dst || exit 1

-echo curl get 512; curl tftp://127.0.0.1:3969/$get_fn | cmp $get_src || exit 1
+echo curl get 512; curl tftp://127.0.0.1:3969/$get_fp | cmp $get_src || exit 1

 echo curl put 512; rm -f $put_dst && curl -T $put_src tftp://127.0.0.1:3969/junk/ && cmp $put_src $put_dst || exit 1

-echo atftp get 512; rm -f $get_fn && ~/src/atftp/atftp -g -r $get_fn 127.0.0.1 3969 && cmp $get_fn $get_src || exit 1
+echo atftp get 512; rm -f $get_fn && atftp -g -r $get_fp -l $get_fn 127.0.0.1 3969 && cmp $get_fn $get_src || exit 1

-echo atftp put 512; rm -f $put_dst && ~/src/atftp/atftp 127.0.0.1 3969 -p -l $put_src -r junk/102.zip && cmp $put_src $put_dst || exit 1
+echo atftp put 512; rm -f $put_dst && atftp 127.0.0.1 3969 -p -l $put_src -r junk/102.zip && cmp $put_src $put_dst || exit 1

 echo nice
+
+rm -f $get_fn
--- a/scripts/tlcheck.sh
+++ b/scripts/tlcheck.sh
@@ -0,0 +1,50 @@
+#!/bin/bash
+set -e
+
+# usage: ./scripts/tlcheck.sh eng chi copyparty/web/browser.js 
+
+awk <"$3" -v lang1=\"$1\": -v lang2=\"$2\": '
+    /^\t\}/{fa=0;fb=0}
+    !/":/{next}
+    $0~lang1{fa=1}
+    $0~lang2{fb=1}
+    fa{a[ia++]=$0}
+    fb{b[ib++]=$0}
+    END{for (i=0;i<ia;i++) printf "%s\n%s\n\n",a[i],b[i]}
+' |
+awk -v apos=\' -v quot=\" '
+    # count special chars and prefix to line
+    function c(ch) {
+        m=$0;
+        gsub(ch,"",m);
+        t=t sprintf("%s%d ", ch, length($0)-length(m))
+    }
+    !$0 && t!=tp {
+        print "\n\033[1;37;41m====DIFF===="
+    }
+    !$0 { print; next; }
+    {
+        tp=t; t="";
+        c(quot);
+        c(apos);
+        c("<");
+        c(">");
+        c("{");
+        c("}");
+        c("&");
+        c("\\\$");
+        c("\\\\");
+        print t $0;
+    }
+' |
+sed -r $'
+    s/\\\\/\033[1;37;41m\\\\\033[0m/g;
+    s/\$N/\033[1;37;45m$N\033[0m/g;
+    s/([{}])/\033[34m\\1\033[0m/g;
+    s/"/\033[44m"\033[0m/g;
+    s/\'/\033[45m\'\033[0m/g;
+    s/&/\033[1;43;30m&\033[0m/g;
+    s/([<>])/\033[30;47m\\1\033[0m/g
+' |
+sed -r 's/\t+//' |
+less -R
--- a/scripts/toc.sh
+++ b/scripts/toc.sh
@@ -20,7 +20,7 @@ cat $f | awk '
    o{next}
    /^#/{s=1;rs=0;pr()}
    /^#* *(nix package)/{rs=1}
-    /^#* *(install on android|dev env setup|just the sfx|complete release|optional gpl stuff|nixos module)|`$/{s=rs}
+    /^#* *(themes|install on android|dev env setup|just the sfx|complete release|optional gpl stuff|nixos module)|```/{s=rs}
    /^#/{
        lv=length($1);
        sub(/[^ ]+ /,"");
--- a/scripts/uncomment.py
+++ b/scripts/uncomment.py
@@ -8,6 +8,12 @@ import sys
 import tokenize


+try:
+    FSTRING_MIDDLE = tokenize.FSTRING_MIDDLE
+except:
+    FSTRING_MIDDLE = -9001
+
+
 def uncomment(fpath):
    """modified https://stackoverflow.com/a/62074206"""

@@ -31,7 +37,7 @@ def uncomment(fpath):
        if start_line > last_lineno:
            last_col = 0

-        if start_col > last_col:
+        if start_col > last_col and prev_toktype != FSTRING_MIDDLE:
            out += " " * (start_col - last_col)

        is_legalese = (
@@ -48,6 +54,10 @@ def uncomment(fpath):
                out += token_string
            else:
                out += '"a"'
+        elif token_type == FSTRING_MIDDLE:
+            out += token_string.replace(r"{", r"{{").replace(r"}", r"}}")
+            if not code and token_string.strip():
+                code = True
        elif token_type != tokenize.COMMENT:
            out += token_string
            if not code and token_string.strip():
--- a/tests/test_dedup.py
+++ b/tests/test_dedup.py
@@ -0,0 +1,245 @@
+#!/usr/bin/env python3
+# coding: utf-8
+from __future__ import print_function, unicode_literals
+
+import json
+import os
+import shutil
+import tempfile
+import unittest
+from itertools import product
+
+from copyparty.authsrv import AuthSrv
+from copyparty.httpcli import HttpCli
+from tests import util as tu
+from tests.util import Cfg
+
+
+class TestDedup(unittest.TestCase):
+    def setUp(self):
+        self.td = tu.get_ramdisk()
+
+        # (data, chash, wark)
+        self.files = [
+            (
+                "one",
+                "BfcDQQeKz2oG1CPSFyD5ZD1flTYm2IoCY23DqeeVgq6w",
+                "XMbpLRqVdtGmgggqjUI6uSoNMTqZVX4K6zr74XA1BRKc",
+            ),
+            (
+                "two",
+                "ko1Q0eJNq3zKYs_oT83Pn8aVFgonj5G1wK8itwnYL4qj",
+                "fxvihWlnQIbVbUPr--TxyV41913kPLhXPD1ngXYxDfou",
+            ),
+        ]
+
+    def tearDown(self):
+        os.chdir(tempfile.gettempdir())
+        shutil.rmtree(self.td)
+
+    def reset(self):
+        td = os.path.join(self.td, "vfs")
+        if os.path.exists(td):
+            shutil.rmtree(td)
+        os.mkdir(td)
+        os.chdir(td)
+        return td
+
+    def cinit(self):
+        if self.conn:
+            self.fstab = self.conn.hsrv.hub.up2k.fstab
+            self.conn.hsrv.hub.up2k.shutdown()
+        self.asrv = AuthSrv(self.args, self.log)
+        self.conn = tu.VHttpConn(self.args, self.asrv, self.log, b"", True)
+        if self.fstab:
+            self.conn.hsrv.hub.up2k.fstab = self.fstab
+
+    def test_a(self):
+        file404 = "\nJ2EOT"
+        f1, f2 = self.files
+        fns = ("f1", "f2", "f3")
+        dn = "d"
+
+        self.conn = None
+        self.fstab = None
+        for e2d in [True, False]:
+            self.args = Cfg(v=[".::A"], a=[], e2d=e2d)
+            self.reset()
+            self.cinit()
+
+            # dupes in parallel
+            sfn, hs = self.do_post_hs(dn, fns[0], f1, True)
+            for fn in fns[1:]:
+                h, b = self.handshake(dn, fn, f1)
+                self.assertIn(" 422 Unpro", h)
+                self.assertIn("a different location;", b)
+            self.do_post_data(dn, fns[0], f1, True, sfn, hs)
+            if not e2d:
+                # dupesched is e2d only; hs into existence
+                for fn, data in zip(fns, (f1[0], file404, file404)):
+                    h, b = self.curl("%s/%s" % ("d", fn))
+                    self.assertEqual(b, data)
+                for fn in fns[1:]:
+                    h, b = self.do_post_hs(dn, fn, f1, False)
+            for fn in fns:
+                h, b = self.curl("%s/%s" % ("d", fn))
+                self.assertEqual(b, f1[0])
+
+            if not e2d:
+                continue
+
+            # overwrite file
+            sfn, hs = self.do_post_hs(dn, fns[0], f2, True, replace=True)
+            self.do_post_data(dn, fns[0], f2, True, sfn, hs)
+            for fn, f in zip(fns, (f2, f1, f1)):
+                h, b = self.curl("%s/%s" % ("d", fn))
+                self.assertEqual(b, f[0])
+
+    def test(self):
+        quick = True  # sufficient for regular smoketests
+        # quick = False
+
+        dirnames = ["d1", "d2"]
+        filenames = ["f1", "f2"]
+        files = self.files
+
+        self.ctr = 336 if quick else 2016  # estimated total num uploads
+        self.conn = None
+        self.fstab = None
+        for e2d in [True, False]:
+            self.args = Cfg(v=[".::A"], a=[], e2d=e2d)
+            for cm1 in product(dirnames, filenames, files):
+                for cm2 in product(dirnames, filenames, files):
+                    if cm1 == cm2:
+                        continue
+                    for cm3 in product(dirnames, filenames, files):
+                        if cm3 in (cm1, cm2):
+                            continue
+
+                        f1 = cm1[2]
+                        f2 = cm2[2]
+                        f3 = cm3[2]
+                        if not e2d:
+                            rms = [-1]
+                        elif f1 == f2:
+                            if f1 == f3:
+                                rms = [0, 1, 2]
+                            else:
+                                rms = [0, 1]
+                        elif f1 == f3:
+                            rms = [0, 2]
+                        else:
+                            rms = [1, 2]
+
+                        for rm in rms:
+                            self.do_tc(cm1, cm2, cm3, rm)
+
+                        if quick:
+                            break
+
+    def do_tc(self, cm1, cm2, cm3, irm):
+        dn1, fn1, f1 = cm1
+        dn2, fn2, f2 = cm2
+        dn3, fn3, f3 = cm3
+
+        self.reset()
+        self.cinit()
+
+        fn1 = self.do_post(dn1, fn1, f1, True)
+        fn2 = self.do_post(dn2, fn2, f2, False)
+        fn3 = self.do_post(dn3, fn3, f3, False)
+
+        if irm < 0:
+            return
+
+        cms = [(dn1, fn1, f1), (dn2, fn2, f2), (dn3, fn3, f3)]
+        rm = cms[irm]
+        dn, fn, _ = rm
+        h, b = self.curl("%s/%s?delete" % (dn, fn), meth="POST")
+        self.assertIn(" 200 OK", h)
+        self.assertIn("deleted 1 files", b)
+        h, b = self.curl("%s/%s" % (dn, fn))
+        self.assertIn(" 404 Not Fo", h)
+        for cm in cms:
+            if cm == rm:
+                continue
+            dn, fn, f = cm
+            h, b = self.curl("%s/%s" % (dn, fn))
+            self.assertEqual(b, f[0])
+
+    def do_post(self, dn, fn, fi, first):
+        print("\n\n# do_post", self.ctr, repr((dn, fn, fi, first)))
+        self.ctr -= 1
+        sfn, hs = self.do_post_hs(dn, fn, fi, first)
+        return self.do_post_data(dn, fn, fi, first, sfn, hs)
+
+    def do_post_hs(self, dn, fn, fi, first, replace=False):
+        h, b = self.handshake(dn, fn, fi, replace=replace)
+        hs = json.loads(b)
+        self.assertEqual(hs["wark"], fi[2])
+
+        sfn = hs["name"]
+        if sfn == fn:
+            print("using original name " + fn)
+        else:
+            print(fn + " got renamed to " + sfn)
+            if first:
+                raise Exception("wait what")
+
+        return sfn, hs
+
+    def do_post_data(self, dn, fn, fi, first, sfn, hs):
+        data, chash, wark = fi
+        if hs["hash"]:
+            self.assertEqual(hs["hash"][0], chash)
+            self.put_chunk(dn, wark, chash, data)
+        elif first:
+            raise Exception("found first; %r, %r" % ((dn, fn, fi), hs))
+
+        h, b = self.curl("%s/%s" % (dn, sfn))
+        self.assertEqual(b, data)
+        return sfn
+
+    def handshake(self, dn, fn, fi, replace=False):
+        hdr = "POST /%s/ HTTP/1.1\r\nConnection: close\r\nContent-Type: text/plain\r\nContent-Length: %d\r\n\r\n"
+        msg = {"name": fn, "size": 3, "lmod": 1234567890, "life": 0, "hash": [fi[1]]}
+        if replace:
+            msg["replace"] = True
+        buf = json.dumps(msg).encode("utf-8")
+        buf = (hdr % (dn, len(buf))).encode("utf-8") + buf
+        # print("HS -->", buf)
+        HttpCli(self.conn.setbuf(buf)).run()
+        ret = self.conn.s._reply.decode("utf-8").split("\r\n\r\n", 1)
+        # print("HS <--", ret)
+        return ret
+
+    def put_chunk(self, dn, wark, chash, data):
+        msg = [
+            "POST /%s/ HTTP/1.1" % (dn,),
+            "Connection: close",
+            "Content-Type: application/octet-stream",
+            "Content-Length: 3",
+            "X-Up2k-Hash: " + chash,
+            "X-Up2k-Wark: " + wark,
+            "",
+            data,
+        ]
+        buf = "\r\n".join(msg).encode("utf-8")
+        # print("PUT -->", buf)
+        HttpCli(self.conn.setbuf(buf)).run()
+        ret = self.conn.s._reply.decode("utf-8").split("\r\n\r\n", 1)
+        self.assertEqual(ret[1], "thank")
+
+    def curl(self, url, binary=False, meth=None):
+        h = "%s /%s HTTP/1.1\r\nConnection: close\r\n\r\n"
+        h = h % (meth or "GET", url)
+        # print("CURL -->", url)
+        HttpCli(self.conn.setbuf(h.encode("utf-8"))).run()
+        if binary:
+            h, b = self.conn.s._reply.split(b"\r\n\r\n", 1)
+            return [h.decode("utf-8"), b]
+
+        return self.conn.s._reply.decode("utf-8").split("\r\n\r\n", 1)
+
+    def log(self, src, msg, c=0):
+        print(msg)
--- a/Show More
+++ b/Show More