ejabberd and prosody XMPP server with synchronized credentials

Ejabberd is a chat server that uses XMPP as messaging protocol that you can use with a large amount of clients. In conjunction with the “xmpp” addon it can be used for a web based chat solution for your users.

• Change it’s owner to whichever user is running the server, ie. ejabberd

    $ chown ejabberd:ejabberd /path/to/friendica/bin/auth_ejabberd.php

• Change the access mode so it is readable only to the user ejabberd and has exec

    $ chmod 700 /path/to/friendica/bin/auth_ejabberd.php

• Edit your ejabberd.cfg file, comment out your auth_method and add:

    {auth_method, external}.
    {extauth_program, "/path/to/friendica/bin/auth_ejabberd.php"}.

• Disable the module “mod_register” and disable the registration:

    {access, register, [{deny, all}]}.

• Enable BOSH:
  • Enable the module “mod_http_bind”
  • Edit this line:

    {5280, ejabberd_http,    [captcha, http_poll, http_bind]}

  • In your apache configuration for your site add this line:

    ProxyPass /http-bind http://127.0.0.1:5280/http-bind retry=0

• Restart your ejabberd service, you should be able to login with your friendica credentials

• if a user has a space or a @ in the nickname, the user has to replace these characters:
  • “ ” (space) is replaced with “%20”
  • “@” is replaced with “(a)”

If you want to use your Friendica installation for authentication with the prosody XMPP server, you have to do the following.

1. Enable the auth_http_async module of prosody
2. Adopt the configuration file (prosody.cfg.lua) of your prosody server to use Friendica for authentication (use your Friendica nodes domain instead of example.com)

authentication = "http_async";
http_auth_url = "https://example.com/api/account/verify_credentials.json";

You can now use your Friendica account credentials to login to your prosody, there is no need to register a new account on the XMPP server.