add hooks for user registration

EVENTS.txt

@@ -699,3 +699,12 @@ StartShowContentLicense: Showing the default license for content
 
 EndShowContentLicense: Showing the default license for content
 - $action: the current action
+
+StartUserRegister: When a new user is being registered
+- &$profile: new profile data (no ID)
+- &$user: new user account (no ID or URI)
+
+EndUserRegister: When a new user has been registered
+- &$profile: new profile data
+- &$user: new user account
+

classes/User.php

@@ -209,8 +209,6 @@ class User extends Memcached_DataObject
 
         $profile = new Profile();
 
-        $profile->query('BEGIN');
-
         if(!empty($email))
         {
             $email = common_canonical_email($email);
@@ -248,16 +246,8 @@ class User extends Memcached_DataObject
 
         $profile->created = common_sql_now();
 
-        $id = $profile->insert();
-
-        if (empty($id)) {
-            common_log_db_error($profile, 'INSERT', __FILE__);
-            return false;
-        }
-
         $user = new User();
 
-        $user->id = $id;
         $user->nickname = $nickname;
 
         if (!empty($password)) { // may not have a password for OpenID users
@@ -282,6 +272,19 @@ class User extends Memcached_DataObject
         $user->inboxed = 1;
 
         $user->created = common_sql_now();
+
+        if (Event::handle('StartUserRegister', array(&$user, &$profile))) {
+
+            $profile->query('BEGIN');
+
+            $id = $profile->insert();
+
+            if (empty($id)) {
+                common_log_db_error($profile, 'INSERT', __FILE__);
+                return false;
+            }
+
+            $user->id = $id;
             $user->uri = common_user_uri($user);
 
             $result = $user->insert();
@@ -328,6 +331,7 @@ class User extends Memcached_DataObject
                 $confirm->address_type = 'email';
 
                 $result = $confirm->insert();
+
                 if (!$result) {
                     common_log_db_error($confirm, 'INSERT', __FILE__);
                     return false;
@@ -387,6 +391,9 @@ class User extends Memcached_DataObject
                 }
             }
 
+            Event::handle('EndUserRegister', array(&$profile, &$user));
+        }
+
         return $user;
     }