No-bullshit file hosting and URL shortening service
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Mia Herkt 7661216bc0
Fix handling double file name extensions
Long names would get truncated at the end, causing problems
including unresolvable file URLs. Example with default settings:
    .package.lst → .package.

Fixes #61
2022-12-01 01:19:05 +01:00
instance Add support for expiring files 2022-11-29 13:09:26 +01:00
migrations Allow management operations like deleting files 2022-11-30 02:19:29 +01:00
nsfw_model Add NSFW detection 2017-10-27 05:28:45 +02:00
templates Allow changing expiration date 2022-11-30 02:19:29 +01:00
tests Add tests 2021-05-23 19:13:51 +02:00
.gitignore Support instance config 2021-05-23 19:13:51 +02:00
.mailmap Add mailmap 2021-05-23 19:13:51 +02:00
0x0-prune.service Add example systemd unit files for prune job 2022-11-29 17:23:30 +01:00
0x0-prune.timer Add example systemd unit files for prune job 2022-11-29 17:23:30 +01:00
cleanup.py Add support for expiring files 2022-11-29 13:09:26 +01:00
fhost.py Fix handling double file name extensions 2022-12-01 01:19:05 +01:00
LICENSE Change license to EUPL 2020-11-03 04:01:30 +01:00
nsfw_detect.py nsfw_detect: Use PyAV instead of ffmpegthumbnailer 2022-11-29 21:54:43 +01:00
pyproject.toml Add tests 2021-05-23 19:13:51 +02:00
README.rst nsfw_detect: Use PyAV instead of ffmpegthumbnailer 2022-11-29 21:54:43 +01:00
requirements.txt remove short_url and add in-tree URLencoder (#53) 2021-12-01 13:25:33 +01:00

The Null Pointer

This is a no-bullshit file hosting and URL shortening service that also runs 0x0.st. Use with uWSGI.

Configuration

To configure 0x0, copy instance/config.example.py to instance/config.py, then edit it. Resonable defaults are set, but there's a couple options you'll need to change before running 0x0 for the first time.

By default, the configuration is stored in the Flask instance directory. Normally, this is in ./instance, but it might be different for your system. For details, see the Flask documentation.

To customize the home and error pages, simply create a templates directory in your instance directory and copy any templates you want to modify there.

If you are running nginx, you should use the X-Accel-Redirect header. To make it work, include this in your nginx configs server block:

location /up {
    internal;
}

where /up is whatever youve configured as FHOST_STORAGE_PATH.

For all other servers, set FHOST_USE_X_ACCEL_REDIRECT to False and USE_X_SENDFILE to True, assuming your server supports this. Otherwise, Flask will serve the file with chunked encoding, which has several downsides, one of them being that range requests will not work. This is a problem for example when streaming media files: It wont be possible to seek, and some ISOBMFF (MP4) files will not play at all.

To make files expire, simply run FLASK_APP=fhost flask prune every now and then. You can use the provided systemd unit files for this:

0x0-prune.service
0x0-prune.timer

Make sure to edit them to match your system configuration. In particular, set the user and paths in 0x0-prune.service.

Before running the service for the first time and every time you update it from this git repository, run FLASK_APP=fhost flask db upgrade.

NSFW Detection

0x0 supports classification of NSFW content via Yahoos open_nsfw Caffe neural network model. This works for images and video files and requires the following:

  • Caffe Python module (built for Python 3)
  • PyAV

Network Security Considerations

Keep in mind that 0x0 can fetch files from URLs. This includes your local network! You should take precautions so that this feature cannot be abused. 0x0 does not (yet) have a way to filter remote URLs, but on Linux, you can use firewall rules and/or namespaces. This is less error-prone anyway.

For instance, if you are using the excellent FireHOL, its very easy to create a group on your system and use it as a condition in your firewall rules. You would then run the application server under that group.