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sources/apps/files_versions/lib/hooks.php 2.13 KB
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  <?php
  /**
   * Copyright (c) 2012 Sam Tuke <samtuke@owncloud.com>
   * This file is licensed under the Affero General Public License version 3 or
   * later.
   * See the COPYING-README file.
   */
  
  /**
   * This class contains all hooks.
   */
  
  namespace OCA\Files_Versions;
  
  class Hooks {
  
  	/**
  	 * listen to write event.
  	 */
  	public static function write_hook( $params ) {
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  		if (\OCP\App::isEnabled('files_versions')) {
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  			$path = $params[\OC\Files\Filesystem::signal_param_path];
  			if($path<>'') {
  				Storage::store($path);
  			}
  		}
  	}
  
  
  	/**
  	 * @brief Erase versions of deleted file
  	 * @param array
  	 *
  	 * This function is connected to the delete signal of OC_Filesystem
  	 * cleanup the versions directory if the actual file gets deleted
  	 */
  	public static function remove_hook($params) {
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  		if (\OCP\App::isEnabled('files_versions')) {
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  			$path = $params[\OC\Files\Filesystem::signal_param_path];
  			if($path<>'') {
  				Storage::delete($path);
  			}
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  		}
  	}
  
  	/**
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  	 * @brief mark file as "deleted" so that we can clean up the versions if the file is gone
  	 * @param array $params
  	 */
  	public static function pre_remove_hook($params) {
  		$path = $params[\OC\Files\Filesystem::signal_param_path];
  			if($path<>'') {
  				Storage::markDeletedFile($path);
  			}
  	}
  
  	/**
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  	 * @brief rename/move versions of renamed/moved files
  	 * @param array with oldpath and newpath
  	 *
  	 * This function is connected to the rename signal of OC_Filesystem and adjust the name and location
  	 * of the stored versions along the actual file
  	 */
  	public static function rename_hook($params) {
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  		if (\OCP\App::isEnabled('files_versions')) {
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  			$oldpath = $params['oldpath'];
  			$newpath = $params['newpath'];
  			if($oldpath<>'' && $newpath<>'') {
  				Storage::rename( $oldpath, $newpath );
  			}
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  		}
  	}
  
  	/**
  	 * @brief clean up user specific settings if user gets deleted
  	 * @param array with uid
  	 *
  	 * This function is connected to the pre_deleteUser signal of OC_Users
  	 * to remove the used space for versions stored in the database
  	 */
  	public static function deleteUser_hook($params) {
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  		if (\OCP\App::isEnabled('files_versions')) {
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  			$uid = $params['uid'];
  			Storage::deleteUser($uid);
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  		}
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  	}
  
  }