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 its owner to whichever user is running the server, i.e. 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 log in 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)"