DirectoryPlugin - Hijack router mapping for normal groups page to substitute a directory page

EVENTS.txt

@@ -1089,13 +1089,13 @@ EndGroupSave: After saving a group, aliases, and first member
 - $group: group that was saved
 
 StartInterpretCommand: Before running a command
-- $cmd: First word in the string, 'foo' in 'foo argument' 
+- $cmd: First word in the string, 'foo' in 'foo argument'
 - $arg: Argument, if any, like 'argument' in 'foo argument'
 - $user: User who issued the command
 - &$result: Resulting command; you can set this!
 
 EndInterpretCommand: Before running a command
-- $cmd: First word in the string, 'foo' in 'foo argument' 
+- $cmd: First word in the string, 'foo' in 'foo argument'
 - $arg: Argument, if any, like 'argument' in 'foo argument'
 - $user: User who issued the command
 - $result: Resulting command
@@ -1111,7 +1111,7 @@ EndGroupActionsList: End the list of actions on a group profile page (before </u
 StartGroupProfileElements: Start showing stuff about the group on its profile page
 - $action: action being executed (for output and params)
 - $group: group for the page
-			   
+
 EndGroupProfileElements: Start showing stuff about the group on its profile page
 - $action: action being executed (for output and params)
 - $group: group for the page
@@ -1351,3 +1351,18 @@ EndValidateEmailInvite: after validating an email address for invitations
 - $user: user doing the invite
 - $email: email address
 - &$valid: flag for if it's valid; can be modified
+
+StartLocalURL: before resolving a local url for an action
+- &$action: action to find a path for
+- &$paramsi: parameters to pass to the action
+- &$fragment: any url fragement
+- &$addSession: whether to add session variable
+- &$url: resulting URL to local resource
+
+EndLocalURL: before resolving a local url for an action
+- &$action: action to find a path for
+- &$paramsi: parameters to pass to the action
+- &$fragment: any url fragement
+- &$addSession: whether to add session variable
+- &$url: resulting URL to local resource
+

lib/util.php

@@ -1221,19 +1221,22 @@ function common_relative_profile($sender, $nickname, $dt=null)
 
 function common_local_url($action, $args=null, $params=null, $fragment=null, $addSession=true)
 {
-    $r = Router::get();
-    $path = $r->build($action, $args, $params, $fragment);
+    if (Event::handle('StartLocalURL', array(&$action, &$params, &$fragment, &$addSession, &$url))) {
+        $r = Router::get();
+        $path = $r->build($action, $args, $params, $fragment);
 
-    $ssl = common_is_sensitive($action);
+        $ssl = common_is_sensitive($action);
 
-    if (common_config('site','fancy')) {
-        $url = common_path(mb_substr($path, 1), $ssl, $addSession);
-    } else {
-        if (mb_strpos($path, '/index.php') === 0) {
+        if (common_config('site','fancy')) {
             $url = common_path(mb_substr($path, 1), $ssl, $addSession);
         } else {
-            $url = common_path('index.php'.$path, $ssl, $addSession);
+            if (mb_strpos($path, '/index.php') === 0) {
+                $url = common_path(mb_substr($path, 1), $ssl, $addSession);
+            } else {
+                $url = common_path('index.php'.$path, $ssl, $addSession);
+            }
         }
+        Event::handle('EndLocalURL', array(&$action, &$params, &$fragment, &$addSession, &$url));
     }
     return $url;
 }

plugins/Directory/DirectoryPlugin.php

@@ -85,6 +85,7 @@ class DirectoryPlugin extends Plugin
         switch ($cls)
         {
         case 'UserdirectoryAction':
+        case 'GroupdirectoryAction':
             include_once $dir
                 . '/actions/' . strtolower(mb_substr($cls, 0, -6)) . '.php';
             return false;
@@ -111,6 +112,7 @@ class DirectoryPlugin extends Plugin
      */
     function onRouterInitialized($m)
     {
+
         $m->connect(
             'directory/users',
             array('action' => 'userdirectory'),
@@ -123,6 +125,52 @@ class DirectoryPlugin extends Plugin
             array('filter' => '([0-9a-zA-Z_]{1,64}|0-9)')
         );
 
+        $m->connect(
+            'groups/:filter',
+            array('action' => 'groupdirectory'),
+            array('filter' => '([0-9a-zA-Z_]{1,64}|0-9)')
+        );
+
+        return true;
+    }
+
+    /**
+     * Hijack the routing (URL -> Action) for the normal directory page
+     * and substitute our group directory action
+     *
+     * @param string $path     path to connect
+     * @param array  $defaults path defaults
+     * @param array  $rules    path rules
+     * @param array  $result   unused
+     *
+     * @return boolean hook return
+     */
+    function onStartConnectPath(&$path, &$defaults, &$rules, &$result)
+    {
+        if (in_array($path, array('group', 'group/', 'groups', 'groups/'))) {
+            $defaults['action'] = 'groupdirectory';
+            $rules              = array('filter' => 'all');
+            return true;
+        }
+        return true;
+    }
+
+    /**
+     * Hijack the mapping (Action -> URL) and return the URL to our
+     * group directory page instead of the normal groups page
+     *
+     * @param Action    $action     action to find a path for
+     * @param array     $params     parameters to pass to the action
+     * @param string    $fragment   any url fragement
+     * @param boolean   $addSession whether to add session variable
+     * @param string    $url        resulting URL to local resource
+     *
+     * @return string the local URL
+     */
+    function onEndLocalURL(&$action, &$params, &$fragment, &$addSession, &$url) {
+        if (in_array($action, array('group', 'group/', 'groups', 'groups/'))) {
+                $url = common_local_url('groupdirectory');
+        }
         return true;
     }