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Install an ejabberd 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.

Installation

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

    $ chown ejabberd:ejabberd /path/to/friendica/include/auth_ejabberd.php
    
  • Change the access mode so it is readable only to the user ejabberd and has exec

    $ chmod 700 /path/to/friendica/include/auth_ejabberd.php
    
  • Edit your ejabberd.cfg file, comment out your auth_method and add:

    {auth_method, external}.
    {extauth_program, "/path/to/friendica/include/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

Other hints

  • 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)"