2.1 KiB
The Null Pointer
This is a no-bullshit file hosting and URL shortening service that also runs 0x0.st. Use with uWSGI.
Configuration
To change settings, modify instance/config.py
. For more
information on instance configuration, 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 config’s server
block:
location /up {
internal;
}
where /up
is whatever you’ve 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 sucks and should be avoided at all
costs.
To make files expire, simply create a cronjob that runs
cleanup.py
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 Yahoo’s 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, it’s 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.