No-bullshit file hosting and URL shortening service
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
Emi Simpson 7bb18b17dc Add min & max expiration + description
4 months ago
instance Add min & max expiration + description 4 months ago
migrations Remove vestigial database model 4 months ago
nsfw_model Add NSFW detection 6 years ago
templates Show correct times on the index page graph 4 months ago
tests Add tests 2 years ago
.gitignore Support instance config 2 years ago
.mailmap Add mailmap 2 years ago
LICENSE Change license to EUPL 2 years ago
README.rst Merge remote-tracking branch 'mia/master' into expiration 4 months ago Improve the migration script, removing the need for --legacy 4 months ago prune: Stream expired files from the database 4 months ago Fix some flake8 errors in cleanup and nsfw_detect 2 years ago
pyproject.toml Add tests 2 years ago
requirements.txt remove short_url and add in-tree URLencoder (#53) 1 year ago


The Null Pointer

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


To configure 0x0, copy instance/ to instance/, 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 {

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 create a cronjob that runs FLASK_APP=fhost flask prune every now and then.

Before running the service for the first time, 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)
  • ffmpegthumbnailer executable in $PATH

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.