commit 889a6b8f2aa991c612466a1fb231c0ae44fec8e0
Author: Jay Knight <jay.knight@stjude.org>
Date:   Tue Aug 17 09:19:18 2010 -0500

    MDL-23489 Let auth plugins handle profile editing

diff --git a/lang/en/auth.php b/lang/en/auth.php
index decfae4..072dc59 100644
--- a/lang/en/auth.php
+++ b/lang/en/auth.php
@@ -96,6 +96,7 @@ $string['locked'] = 'Locked';
 $string['md5'] = 'MD5 hash';
 $string['nopasswordchange'] = 'Password can not be changed';
 $string['nopasswordchangeforced'] = 'You cannot proceed without changing your password, however there is no available page for changing it. Please contact your Moodle Administrator.';
+$string['noprofileedit'] = 'Profile can not be edited';
 $string['ntlmsso_attempting'] = 'Attempting Single Sign On via NTLM...';
 $string['ntlmsso_failed'] = 'Auto-login failed, try the normal login page...';
 $string['ntlmsso_isdisabled'] = 'NTLM SSO is disabled.';
diff --git a/lib/authlib.php b/lib/authlib.php
index 48d1c37..3b0f564 100644
--- a/lib/authlib.php
+++ b/lib/authlib.php
@@ -147,6 +147,31 @@ class auth_plugin_base {
     }
 
     /**
+     * Returns true if this authentication plugin can edit the users'
+     * profile.
+     *
+     * @return bool
+     */
+    function can_edit_profile() {
+        //override if needed
+        return false;
+    }
+
+    /**
+     * Returns the URL for editing the users' profile, or empty if the default
+     * URL can be used.
+     *
+     * This method is used if can_edit_profile() returns true.
+     * This method is called only when user is logged in, it may use global $USER.
+     *
+     * @return string
+     */
+    function edit_profile_url() {
+        //override if needed
+        return '';
+    }
+
+    /**
      * Returns true if this authentication plugin is "internal" (which means that
      * Moodle stores the users' passwords and other details in the local Moodle
      * database).
diff --git a/lib/navigationlib.php b/lib/navigationlib.php
index 6432996..49ec811 100644
--- a/lib/navigationlib.php
+++ b/lib/navigationlib.php
@@ -3260,8 +3260,16 @@ class settings_navigation extends navigation_node {
                 $url = new moodle_url('/user/editadvanced.php', array('id'=>$user->id, 'course'=>$course->id));
                 $usersetting->add(get_string('editmyprofile'), $url, self::TYPE_SETTING);
             } else if ((has_capability('moodle/user:editprofile', $usercontext) && !is_siteadmin($user)) || ($currentuser && has_capability('moodle/user:editownprofile', $systemcontext))) {
-                $url = new moodle_url('/user/edit.php', array('id'=>$user->id, 'course'=>$course->id));
-                $usersetting->add(get_string('editmyprofile'), $url, self::TYPE_SETTING);
+				if (!empty($user->auth)) {
+					$userauth = get_auth_plugin($user->auth);
+					if ($userauth->can_edit_profile()) {
+						$url = $userauth->edit_profile_url();
+						if (empty($url)) {
+							$url = new moodle_url('/user/edit.php', array('id'=>$user->id, 'course'=>$course->id));
+						}
+						$usersetting->add(get_string('editmyprofile'), $url, self::TYPE_SETTING);
+					}
+				}
             }
         }
 
diff --git a/user/edit.php b/user/edit.php
index 32fa072..2b296a0 100644
--- a/user/edit.php
+++ b/user/edit.php
@@ -86,6 +86,18 @@ if (is_mnet_remote_user($user)) {
     redirect($CFG->wwwroot . "/user/view.php?course={$course->id}");
 }
 
+// load the appropriate auth plugin
+$userauth = get_auth_plugin($user->auth);
+
+if (!$userauth->can_edit_profile()) {
+    print_error('noprofileedit', 'auth');
+}
+
+if ($editurl = $userauth->edit_profile_url()) {
+    // this internal scrip not used
+    redirect($editurl);
+}
+
 if ($course->id == SITEID) {
     $coursecontext = get_context_instance(CONTEXT_SYSTEM);   // SYSTEM context
 } else {