From Kolab Wiki
The Kolab_Server package allows you to access the Kolab Server user database.
Installation of the package
pear channel-discover pear.horde.org pear install --force channel://pear.horde.org/Kolab_Server
pear will probably complain about the library (and its dependencies) not being marked stable yet but the --force option allows to ignore these warnings.
Using the package
This section will present some examples on how to fetch information from the Kolab Server database.
Currently the package only provides a LDAP and a test driver as possible backends. The test driver is for internal testing purposes only and emulates a LDAP system without requiring access to a real LDAP database. So most developers will use the LDAP back end. In order to enable the driver some basic configuration is required.
Configurations for Horde are always set in the global $conf variable. A possible configuration for Horde_Kolab_Server could look like this:
global $conf; $conf['kolab']['server']['driver'] = 'ldap'; $conf['kolab']['server']['params']['server'] = 'example.com'; $conf['kolab']['server']['params']['base_dn'] = 'dc=example,dc=com'; $conf['kolab']['server']['params']['bind_dn'] = 'cn=nobody,cn=internal,dc=example,dc=com'; $conf['kolab']['server']['params']['bind_pw'] = 'MY_VERY_SECRET_PASSWORD';
With this base configuration the developer can load the code and initialize the server object:
require_once 'Horde/Kolab/Server.php'; $server = Horde_Kolab_Server::singleton();
This server handler serves two primary purposes:
- Identifying the ID of an object on basis of a given attribute
- Fetching an object from the database based on the ID
A common request to the Kolab LDAP database is to return the ID of a user given a mail address. The $server object will return the DN (distinguished name) of the object in the LDAP database:
$dn = $server->uidForMailAddress('email@example.com');
The returned DN could look like this:
var_dump($dn); string(32) "cn=Gunnar Wrobel,dc=example,dc=com"
For alternative methods of retrieving a particular DN you should consult the detailed package documentation.
This DN can now be used to fetch the object from the database:
$object = $server->fetch($dn);
The $server object will always return an object of class Horde_Kolab_Server_Object. But you will receive a sub class of this parent class that matches the type of the object. For the example given above the server handler returns an object of type Horde_Kolab_Server_Object_user:
var_dump(get_class($object)); string(30) "Horde_Kolab_Server_Object_user"
Depending on the sub class such an object presents different features. One primary method is common to all the objects though: Fetching attribute values with get().
$attr = $object->get(KOLAB_ATTR_CN);
KOLAB_ATTR_CN is being used to retrieve the common name of the object:
var_dump($attr); string(13) "Gunnar Wrobel"
For additional details about the different objects and attribute types you should consult the detailed package documentation.
Detailed package documentation
A detailed documentation based on the code comments and extracted via phpDocumentor can be found here. Simply select the package Kolab_Server in the package selection box in the upper right corner.