feat: allow configuration of who may create new namespaces

Author: micgro42

action.php

@@ -19,8 +19,31 @@ class action_plugin_newnamespacepermissions extends DokuWiki_Action_Plugin {
      */
     public function register(Doku_Event_Handler $controller) {
 
-       $controller->register_hook('ACTION_ACT_PREPROCESS', 'FIXME', $this, 'handle_action_act_preprocess');
-   
+        $controller->register_hook('ACTION_ACT_PREPROCESS', 'BEFORE', $this, 'handleActionActPreprocess');
+        $controller->register_hook('COMMON_WIKIPAGE_SAVE', 'BEFORE', $this, 'checkPagesave');
+
+    }
+
+    /**
+     * [Custom event handler which performs action]
+     *
+     * @param Doku_Event $event  event object by reference
+     * @param mixed      $param  [the parameters passed as fifth argument to register_hook() when this
+     *                           handler was registered]
+     * @return void
+     */
+    public function handleActionActPreprocess(Doku_Event $event, $param) {
+        if (act_clean($event->data) !== 'edit') {
+            return;
+        }
+
+        if ($this->isSaveAllowed()) {
+            return;
+        }
+
+        // user tries to create namespace but isn't allowed to do so
+        $event->data = 'show';
+        msg($this->getLang('namespace creation not allowed'),-1);
     }
 
     /**
@@ -31,8 +54,35 @@ public function register(Doku_Event_Handler $controller) {
      *                           handler was registered]
      * @return void
      */
+    public function checkPagesave(Doku_Event $event, $param) {
+        if ($this->isSaveAllowed()) {
+            return;
+        }
+
+        $event->preventDefault();
+        msg($this->getLang('namespace creation not allowed'), -1);
+        msg($this->getLang('you tried to save') . '<pre>' . hsc($event->data['newContent']) . '</pre>', 0);
+    }
+
+    /**
+     * Check if we're creating a new page in a new namespace and if we're allowed to do so
+     */
+    protected function isSaveAllowed() {
+        global $ID, $INPUT, $USERINFO;
+        $namespaceDir = dirname(wikiFN($ID));
+        if (file_exists($namespaceDir) && is_dir($namespaceDir)) {
+            return true;
+        }
+
+        $allowedToCreateNamespaces = $this->getConf('allow_namespace_creation');
+        $user = $INPUT->server->str('REMOTE_USER');
+        $groups = $USERINFO['grps'] ?: ['ALL'];
+
+        if (auth_isMember($allowedToCreateNamespaces, $user, $groups) || auth_ismanager(null, null, true)) {
+            return true;
+        }
 
-    public function handle_action_act_preprocess(Doku_Event &$event, $param) {
+        return false;
     }
 
 }

conf/default.php

@@ -5,4 +5,4 @@
  * @author Michael Große <[email protected]>
  */
 
-//$conf['fixme']    = 'FIXME';
+$conf['allow_namespace_creation']    = '@user';

conf/metadata.php

@@ -6,5 +6,5 @@
  */
 
 
-//$meta['fixme'] = array('string');
+$meta['allow_namespace_creation'] = array('string');
 

lang/en/lang.php

@@ -9,8 +9,8 @@
 // $lang['menu'] = 'Your menu entry';
 
 // custom language strings for the plugin
-// $lang['fixme'] = 'FIXME';
-
+$lang['namespace creation not allowed'] = 'You do not have the permission to create a new namespace.';
+$lang['you tried to save'] = 'You tried to save the following text: ';
 
 
 //Setup VIM: ex: et ts=4 :

lang/en/settings.php

@@ -6,7 +6,7 @@
  */
 
 // keys need to match the config setting name
-// $lang['fixme'] = 'FIXME';
+ $lang['allow_namespace_creation'] = 'List of users and @groups that are allowed to create new namespaces';