# &adminguide;

## Overview

This is new version of Jabber module that integrates XODE XML parser for parsing Jabber messages. That introduces a new module dependency: expat library.

Expat is a common XML library and is the fastest available for Linux/Unix, the second over all, after msxml library. It is integrated in most of well known Linux distributions.

### New Features

- Presence support (see doc/xxjab.cfg for a sample cfg file) (January 2003).

- SIP to Jabber conference support (December 2003).

- Possibility to manage all kinds of Jabber messages (message/presence/iq) (December 2003).

- Aliases -- Possibility to set host aliases for addresses (see parameter's desc.) (December 2003).

- Send received &sip; MESSAGE messages to different &im; networks (Jabber, ICQ,MSN, AIM, Yahoo) using a Jabber server (December 2003).

- Send incoming Jabber instant messages as &sip; MESSAGE messages.

- Gateways detection -- Ability to see whether an &im; gateway is up or down.

## Admin's Guide

A more complete guide about SIMPLE2Jabber gateway can be found at &osipshomelink;. The part below will be removed soon, only the manual from web will be updated.

The Jabber server setup is not a subject of this guide. Check http://www.jabber.org for that.

Useful scripts, for creating Jabber Gateway database, or for managing the Jabber accounts form web are located in 'doc' subdirectory of the module.

Main steps of using the Jabber gateway:

- Create the MySQL database.

- Setup the local Jabber server.

- Set the module parameter values in cfg file of &osips;, load the dependent modules, set up the routing rules for Jabber gateway.

- Run &osips;.

The administrator of &osips;/Jabber gateway must inform the users what are the aliases for Jabber/Other &im; networks. Other &im;s could be AIM, ICQ, MSN, Yahoo, and so on.

These aliases depend on the server hostname where runs &osips; and how local Jabber server is setup.

Next is presented a use case. Prologue:

- &osips; is running on server.org.

- Local Jabber server is running on jabsrv.server.org.

- Jabber network alias (first part of jdomain) is jabber.server.org

The aliases for other &im; networks must be the same as JID set in Jabber configuration file for each &im; transport.

The JIDs of Jabber transports must start with the name of the network. For AIM, JID must start with aim., for ICQ with icq (that because I use icqv7-t), for MSN with msn. and for Yahoo with yahoo.. The gateway needs these to find out what transport is working and which not. For our use case these could be like aim.server.org, icq.server.org, msn.server.org, yahoo.server.org.

It is indicated to have these aliases in DNS, thus the client application can resolve the DNS name. Otherwise there must be set the outbound proxy to &osips; server.

*** Routing rules for Jabber gateway First step is to configure &osips; to recognize messages for Jabber gateway. Look at doc/xjab.cfg to see a sample. The idea is to look in messages for destination address and if it contains Jabber alias or other &im; alias, that means the message is for Jabber gateway.

Next step is to find out what means that message for Jabber gateway. It could be a special message what triggers the gateway to take an action or is a simple message which should be delivered to Jabber network (using the method jab_send_message).

The special messages are for:

- Registering to Jabber server (go online in Jabber network)--here must be called jab_go_online method.

- Leaving the Jabber network (go offline in Jabber network)--here must be called jab_go_offline method.

- Joining a Jabber conference room--here must be called jab_join_jconf.

- Leaving a Jabber conference room--here must be called jab_exit_jconf.

The destination address must follow the following patterns:

- For Jabber network: username<delim>jabber_server@jabber_alias.

- For Jabber conference: nickname<delim>room<delim>conference_server@jabber_alias.

- For AIM network: aim_username@aim_alias.

- For ICQ network: icq_number@icq_alias.

- For MSN network: msn_username<delim>msn_server@msn_alias. msn_server can be msn.com or hotmail.com.

- For YAHOO network: yahoo_username@yahoo_alias.

jabber_alias is the first part of jdomain.

## &adminguide;

The user must activate his Jabber account associated with his &sip; id. For each other &im; network on which he wants to send messages, he must set an account for that &im; network. The gateway is not able to create new account in foreign networks, excepting local Jabber server.

When you want to send a message to someone in other &im; network, you must set the destination of the message according with the pattern corresponding to that &im; network (see last part of Admin guide chapter).

Sending a message to user@jabber.xxx.org which is in Jabber network, the destination must be: user<delim>jabber.xxx.org@jabber_alias.

For someone who is in Yahoo network the destination must be: user@yahoo_alias

The &osips; administrator have to set the Jabber transports for each &im; network in order to be able to send messages to those networks. The alias of each &im; network can be found out from &osips; admin.

You cannot send messages from your &sip; client to your associated Jabber account--is something like sending messages to yourself.

## Dependencies

### &osips; Modules

The following modules must be loaded before this module:

- A database module.

- pa (Optionally) - Presence Agent.

- tm - Transaction Manager.

### External Libraries or Applications

The following libraries or applications must be installed before running &osips; with this module loaded:

- Expat library.

## Exported Parameters

### `db_url` (string)

SQL &url; of database.

Default value is mysql://root@127.0.0.1/sip_jab.

#### Set `db_url` parameter

    ...
    modparam("jabber", "db_url", "mysql://username:password@host/sip_jab")
    ...

### `jaddress` (string)

&ip; or hostname of Jabber server -- it must be the same as the value from <host> tag of Jabber server config file.

Default value is 127.0.0.1.

#### Set `jaddress` parameter

    ...
    modparam("jabber", "jaddress", "1.2.3.4")
    ...

### `jport` (integer)

Port number of Jabber server.

Default value is 5222.

#### Set `jport` parameter

    ...
    modparam("jabber", "jport", 1234)
    ...

### `jdomain` (string)

Format: jabber.sipserver.com=<delim>. If the destination is for Jabber network the &uri; should be like: username<delim>jabber_server@jdomain or nickname<delim>roomname<delim>conference_server@jdomain

<delim> must be a un-reserved character. By default this character is * . The destination will be transformed to username@jabber_server or roomname@conference_server/nickname before the message is sent to Jabber server.

Default value is none.

#### Set `jdomain` parameter

    ...
    modparam("jabber", "jdomain", "jabber.sipserver.com=*")
    ...

### `aliases` (string)

Aliases for &im; networks.

Format: N;alias1=<delim1>;...;aliasN=<delimN>; Destinations like '*@aliasX' could have other format than those specified for Jabber network. All <delim> from user part of the destination address will be changed to <delimX> if the destination address contains <aliasX>.

(Ex: jdomain is 'jabber.x.com=*' and msn_alias is 'msn.x.com=%'. The destination address forM MSN Network, on &sip; side, is like 'username*hotmail.com@msn.x.com'. The destination address will be transformed to 'username%hotmail.com@msn.x.com'. 'msn.x.com' must be the same as the JID associated with MSN transport in Jabber configuration file (usually is 'jabberd.xml'))

Default value is none.

#### Set `jdomain` parameter

    ...
    modparam("jabber", "aliases", "1;msn.x.com=%")
    ...

### `proxy` (string)

Outbound proxy address.

Format: ip_address:port hostname:port

All &sip; messages generated by gateway will be sent to that address. If is missing, the message will be delivered to the hostname of the destination address

Default value is none.

#### Set `proxy` parameter

    ...
    modparam("jabber", "proxy", "10.0.0.1:5060 sipserver.com:5060")
    ...

### `registrar` (string)

The address in whose behalf the INFO and ERROR messages are sent.

Default value is jabber_gateway@127.0.0.1.

#### Set `registrar` parameter

    ...
    modparam("jabber", "registrar", "jabber_gateway@127.0.0.1")
    ...

### `workers` (integer)

Number of workers.

Default value is 2.

#### Set `workers` parameter

    ...
    modparam("jabber", "workers", 2)
    ...

### `max_jobs` (integer)

Maximum jobs per worker.

Default value is 10.

#### Set `max_jobs` parameter

    ...
    modparam("jabber", "max_jobs", 10)
    ...

### `cache_time` (integer)

Cache time of a Jabber connection.

Default value is 600.

#### Set `cache_time` parameter

    ...
    modparam("jabber", "cache_time", 600)
    ...

### `delay_time` (integer)

Time to keep a &sip; message (in seconds).

Default value is 90 seconds.

#### Set `delay_time` parameter

    ...
    modparam("jabber", "delay_time", 90)
    ...

### `sleep_time` (integer)

Time between expired Jabber connections checking (in seconds).

Default value is 20 seconds.

#### Set `sleep_time` parameter

    ...
    modparam("jabber", "sleep_time", 20)
    ...

### `check_time` (integer)

Time between checking the status of JabberGW workers (in seconds).

Default value is 20 seconds.

#### Set `check_time` parameter

    ...
    modparam("jabber", "check_time", 20)
    ...

### `priority` (str)

Presence priority for Jabber gateway.

Default value is 9.

#### Set `priority` parameter

    ...
    modparam("jabber", "priority", "3")
    ...

## Exported Functions

### `jab_send_message()`

Converts &sip; MESSAGE message to a Jabber message and sends it to Jabber server.

This function can be used from REQUEST_ROUTE.

#### `jab_send_message()` usage

    ...
    jab_send_message();
    ...

### `jab_join_jconf()`

Join a Jabber conference--the nickname, room name and conference server address should be included in To header as: nickname%roomname%conference_server@jdomain . If the nickname is missing, then the &sip; username is used.

This function can be used from REQUEST_ROUTE.

#### `jab_join_jconf()` usage

    ...
    jab_join_jconf();
    ...

### `jab_exit_jconf()`

Leave a Jabber conference--the nickname, room name and conference server address should be included in To header as: nickname%roomname%conference_server@jdomain .

This function can be used from REQUEST_ROUTE.

#### `jab_exit_jconf()` usage

    ...
    jab_exit_jconf();
    ...

### `jab_go_online()`

Register to the Jabber server with associated Jabber ID of the &sip; user.

This function can be used from REQUEST_ROUTE.

#### `jab_go_online()` usage

    ...
    jab_go_online();
    ...

### `jab_go_offline()`

Log off from Jabber server the associated Jabber ID of the &sip; user.

This function can be used from REQUEST_ROUTE.

#### `jab_go_offline()` usage

    ...
    jab_go_offline();
    ...