Improved folder protection.

tbrehm

2011-09-21 2023a79096ff4651d601e2ea70a7f050b8555b08

 server/plugins-available/apache2_plugin.inc.php

@@ -77,6 +77,14 @@
      $app->plugins->registerEvent('webdav_user_delete',$this->plugin_name,'webdav');
      
      $app->plugins->registerEvent('client_delete',$this->plugin_name,'client_delete');
		
      $app->plugins->registerEvent('web_folder_user_insert',$this->plugin_name,'web_folder_user');
      $app->plugins->registerEvent('web_folder_user_update',$this->plugin_name,'web_folder_user');
      $app->plugins->registerEvent('web_folder_user_delete',$this->plugin_name,'web_folder_user');
		
      $app->plugins->registerEvent('web_folder_update',$this->plugin_name,'web_folder_update');
      $app->plugins->registerEvent('web_folder_delete',$this->plugin_name,'web_folder_delete');
		
   }

   // Handle the creation of SSL certificates
@@ -1184,6 +1192,186 @@
      unset($tpl);

   }
	
   //* Create or update the .htaccess folder protection
   function web_folder_user($event_name,$data) {
      global $app, $conf;

      $app->uses('system');
		
      if($event_name == 'web_folder_user_delete') {
         $folder_id = $data['old']['web_folder_id'];
      } else {
         $folder_id = $data['new']['web_folder_id'];
      }
		
      $folder = $app->db->queryOneRecord("SELECT * FROM web_folder WHERE web_folder_id = ".intval($folder_id));
      $website = $app->db->queryOneRecord("SELECT * FROM web_domain WHERE domain_id = ".intval($folder['parent_domain_id']));
		
      if(!is_array($folder) or !is_array($website)) {
         $app->log('Not able to retrieve folder or website record.',LOGLEVEL_DEBUG);
         return false;
      }
		
      //* Get the folder path.
      if(substr($folder['path'],0,1) == '/') $folder['path'] = substr($folder['path'],1);
      if(substr($folder['path'],-1) == '/') $folder['path'] = substr($folder['path'],0,-1);
      $folder_path = escapeshellcmd($website['document_root'].'/web/'.$folder['path']);
      if(substr($folder_path,-1 != '/')) $folder_path .= '/';
		
      //* Check if the resulting path is inside the docroot
      if(stristr($folder_path,'..') || stristr($folder_path,'./') || stristr($folder_path,'\\')) {
         $app->log('Folder path "'.$folder_path.'" contains .. or ./.',LOGLEVEL_DEBUG);
         return false;
      }
		
      //* Create the folder path, if it does not exist
      if(!is_dir($folder_path)) exec('mkdir -p '.$folder_path);
		
      //* Create empty .htpasswd file, if it does not exist
      if(!is_file($folder_path.'.htpasswd')) {
         touch($folder_path.'.htpasswd');
         chmod($folder_path.'.htpasswd',0755);
         $app->log('Created file'.$folder_path.'.htpasswd',LOGLEVEL_DEBUG);
      }
		
      if($data['new']['username'] != $data['old']['username'] || $data['new']['active'] == 'n') {
         $app->system->removeLine($folder_path.'.htpasswd',$data['old']['username'].':');
         $app->log('Removed user: '.$data['old']['username'],LOGLEVEL_DEBUG);
      }
		
      //* Add or remove the user from .htpasswd file
      if($event_name == 'web_folder_user_delete') {
         $app->system->removeLine($folder_path.'.htpasswd',$data['old']['username'].':');
         $app->log('Removed user: '.$data['old']['username'],LOGLEVEL_DEBUG);
      } else {
         if($data['new']['active'] == 'y') {
            $app->system->replaceLine($folder_path.'.htpasswd',$data['new']['username'].':',$data['new']['username'].':'.$data['new']['password'],0,1);
            $app->log('Added or updated user: '.$data['new']['username'],LOGLEVEL_DEBUG);
         }
      }
		
      //* Create the .htaccess file
      if(!is_file($folder_path.'.htaccess')) {
         $ht_file = "AuthType Basic\nAuthName \"Members Only\"\nAuthUserFile ".$folder_path.".htpasswd\nrequire valid-user";
         file_put_contents($folder_path.'.htaccess',$ht_file);
         chmod($folder_path.'.htpasswd',0755);
         $app->log('Created file'.$folder_path.'.htaccess',LOGLEVEL_DEBUG);
      }
		
   }
	
   //* Remove .htaccess and .htpasswd file, when folder protection is removed
   function web_folder_delete($event_name,$data) {
      global $app, $conf;
		
      $folder_id = $data['old']['web_folder_id'];
		
      $folder = $app->db->queryOneRecord("SELECT * FROM web_folder WHERE web_folder_id = ".intval($folder_id));
      $website = $app->db->queryOneRecord("SELECT * FROM web_domain WHERE domain_id = ".intval($folder['parent_domain_id']));
		
      if(!is_array($folder) or !is_array($website)) {
         $app->log('Not able to retrieve folder or website record.',LOGLEVEL_DEBUG);
         return false;
      }
		
      //* Get the folder path.
      $folder_path = realpath($website['document_root'].'/web/'.$folder['path']);
      if(substr($folder_path,-1 != '/')) $folder_path .= '/';
		
      //* Check if the resulting path is inside the docroot
      if(substr($folder_path,0,strlen($website['document_root'])) != $website['document_root']) {
         $app->log('Folder path is outside of docroot.',LOGLEVEL_DEBUG);
         return false;
      }
		
      //* Remove .htpasswd file
      if(is_file($folder_path.'.htpasswd')) {
         unlink($folder_path.'.htpasswd');
         $app->log('Removed file'.$folder_path.'.htpasswd',LOGLEVEL_DEBUG);
      }
		
      //* Remove .htaccess file
      if(is_file($folder_path.'.htaccess')) {
         unlink($folder_path.'.htaccess');
         $app->log('Removed file'.$folder_path.'.htaccess',LOGLEVEL_DEBUG);
      }
   }
	
   //* Update folder protection, when path has been changed
   function web_folder_update($event_name,$data) {
      global $app, $conf;
		
      $website = $app->db->queryOneRecord("SELECT * FROM web_domain WHERE domain_id = ".intval($data['new']['parent_domain_id']));
	
      if(!is_array($website)) {
         $app->log('Not able to retrieve folder or website record.',LOGLEVEL_DEBUG);
         return false;
      }
		
      //* Get the folder path.
      $old_folder_path = realpath($website['document_root'].'/web/'.$data['old']['path']);
      if(substr($old_folder_path,-1 != '/')) $old_folder_path .= '/';
			
      $new_folder_path = escapeshellcmd($website['document_root'].'/web/'.$data['new']['path']);
      if(substr($new_folder_path,-1 != '/')) $new_folder_path .= '/';
		
      //* Check if the resulting path is inside the docroot
      if(stristr($new_folder_path,'..') || stristr($new_folder_path,'./') || stristr($new_folder_path,'\\')) {
         $app->log('Folder path "'.$new_folder_path.'" contains .. or ./.',LOGLEVEL_DEBUG);
         return false;
      }
      if(stristr($old_folder_path,'..') || stristr($old_folder_path,'./') || stristr($old_folder_path,'\\')) {
         $app->log('Folder path "'.$old_folder_path.'" contains .. or ./.',LOGLEVEL_DEBUG);
         return false;
      }
		
      //* Check if the resulting path is inside the docroot
      if(substr($old_folder_path,0,strlen($website['document_root'])) != $website['document_root']) {
         $app->log('Old folder path '.$old_folder_path.' is outside of docroot.',LOGLEVEL_DEBUG);
         return false;
      }
      if(substr($new_folder_path,0,strlen($website['document_root'])) != $website['document_root']) {
         $app->log('New folder path '.$new_folder_path.' is outside of docroot.',LOGLEVEL_DEBUG);
         return false;
      }
			
      //* Create the folder path, if it does not exist
      if(!is_dir($new_folder_path)) exec('mkdir -p '.$new_folder_path);
		
      if($data['old']['path'] != $data['new']['path']) {

		
         //* move .htpasswd file
         if(is_file($old_folder_path.'.htpasswd')) {
            rename($old_folder_path.'.htpasswd',$new_folder_path.'.htpasswd');
            $app->log('Moved file'.$new_folder_path.'.htpasswd',LOGLEVEL_DEBUG);
         }
			
         //* move .htpasswd file
         if(is_file($old_folder_path.'.htaccess')) {
            rename($old_folder_path.'.htaccess',$new_folder_path.'.htaccess');
            $app->log('Moved file'.$new_folder_path.'.htaccess',LOGLEVEL_DEBUG);
         }
		
      }
		
      //* Create the .htaccess file
      if($data['new']['active'] == 'y' && !is_file($new_folder_path.'.htaccess')) {
         $ht_file = "AuthType Basic\nAuthName \"Members Only\"\nAuthUserFile ".$folder_path.".htpasswd\nrequire valid-user";
         file_put_contents($new_folder_path.'.htaccess',$ht_file);
         chmod($new_folder_path.'.htpasswd',0755);
         $app->log('Created file'.$new_folder_path.'.htaccess',LOGLEVEL_DEBUG);
      }
		
      //* Remove .htaccess file
      if($data['new']['active'] == 'n' && is_file($new_folder_path.'.htaccess')) {
         unlink($new_folder_path.'.htaccess');
         $app->log('Removed file'.$new_folder_path.'.htaccess',LOGLEVEL_DEBUG);
      }
		
		
   }

   /**
    * This function is called when a Webdav-User is inserted, updated or deleted.