ejabberd SOCKS5 proxy – file transfer

Thu, 03 Sep 2015 14:08:00 +0000

Ejabberd XMPP server includes a SOCKS5 proxy, setting it up correctly is what makes the difference between fast or very slow file transfer operations.
As per XEP-0065 file transfer is either peer-to-peer or mediated by a proxy server.
In Conversation peer-to-peer transfer is done by converting the file in base64, split it in 4 kb chunks sent one at the time always awaiting first for the ACK of the precedent one; this makes the whole process painfully slow and bandwidth consuming.
The other file transfer method supported by Conversation is defined by XEP-0234 (or Jingle file transfer) which relies on a SOCKS5 proxy and also allow to negotiate parameters like encryption.
Ejabberd configuration:

SOCKS5 on nagg.eu

ejabberd SOCKS5 proxy – file transfer