Support for external images (proxying)

[azlux]

Hi all,
I was discussing on the IRC about the rollback of the "support for external image" implementation.

I open this ticket to discuss about the implementation the software "Thelounge" use. You can check the option of this software here from prefetchStorage to fileUpload.

Based on the IRC discussion and the implementation thelounge have done. Here the idea to implement an image support on mumble :
External Image

1. The server load thumbnails and site descriptions from URLs posted in channels
2. The server load thumbnails and site descriptions from URLs posted in private messages (optional)
3. The server store and proxy prefetched images and thumbnails on the filesystem rather than directly display the content at the original URLs with the client (You protect client IP, only the server is fetching the url), the client ask the server for the data. No tentative the fetch directly the URL.

Internal Image:
4. Allow uploading files (limited by the config) to the server hosting Mumble. (and post the url) the client prefetch will directly get the image because it's the same domain as the server.

You make an amazing job with mumble.
Best regards
Azlux

[wabash1]

Please add the option in the murmur config to not proxy the server to protect the client and allow the client to fetch the images even though this will expose the IP, in my particular situation bandwidth can be expensive.