The
login
+page is the first page the user sees when opening LAM. It manages LDAP
+authentication and checks the environment of the user.
+
+
+
login.php
+The login page offers authentication, language selection and profile
+selection. There are also some environment checks.
+
+
Authentication
+The list of possible users is loaded from the current active profile.
+Only the RDN value is offered for selection by the user.
+When the user submits his password then a new
Ldap object is created and LAM
+tries to connect to the LDAP server.
+If the connection was successful the user is forwarded to the main
+frame (main.php). The session variable
$_SESSION['loggedIn']
+is set to
true. This informs
+the other PHP scripts that a valid user is connected (e.g. the user is
+allowed to create account profiles).
+
+
Language selection
+The list of possible languages is read from
config/language. The current active
+profile defines the preselected language and the language of the login
+page itself.
+
+
Profile selection
+
+The user can change the active configuration profile at login. A list
+of possible profiles is retrieved by
getConfigProfiles().
+If the profile is changed then the login replaces the config object in
$_SESSION['config']
+by a new one. Then the main login page is loaded and uses the new
+values.
+
+
Environment checks
+LAM checks if all needed PHP extensions are installed.
+
+ - LDAP: PHP needs LDAP
+support
+ - MHash: needed for
+password creation
+ - Gettext: needed for
+translation
+
+
+
+
+
+