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sources/apps/files_versions/lib/hooks.php 2.82 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 {
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  	public static function connectHooks() {
  		// Listen to write signals
  		\OCP\Util::connectHook('OC_Filesystem', 'write', "OCA\Files_Versions\Hooks", "write_hook");
  		// Listen to delete and rename signals
  		\OCP\Util::connectHook('OC_Filesystem', 'post_delete', "OCA\Files_Versions\Hooks", "remove_hook");
  		\OCP\Util::connectHook('OC_Filesystem', 'delete', "OCA\Files_Versions\Hooks", "pre_remove_hook");
  		\OCP\Util::connectHook('OC_Filesystem', 'rename', "OCA\Files_Versions\Hooks", "rename_hook");
  		\OCP\Util::connectHook('OC_Filesystem', 'copy', "OCA\Files_Versions\Hooks", "copy_hook");
  	}
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  	/**
  	 * 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);
  			}
  		}
  	}
  
  
  	/**
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  	 * Erase versions of deleted file
  	 * @param array $params
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  	 *
  	 * This function is connected to the delete signal of OC_Filesystem
  	 * cleanup the versions directory if the actual file gets deleted
  	 */
  	public static function remove_hook($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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  	 * mark file as "deleted" so that we can clean up the versions if the file is gone
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  	 * @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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  	 * rename/move versions of renamed/moved files
  	 * @param array $params array with oldpath and newpath
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  	 *
  	 * This function is connected to the rename signal of OC_Filesystem and adjust the name and location
  	 * of the stored versions along the actual file
  	 */
  	public static function rename_hook($params) {
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  		if (\OCP\App::isEnabled('files_versions')) {
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  			$oldpath = $params['oldpath'];
  			$newpath = $params['newpath'];
  			if($oldpath<>'' && $newpath<>'') {
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  				Storage::renameOrCopy($oldpath, $newpath, 'rename');
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  			}
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  		}
  	}
  
  	/**
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  	 * copy versions of copied files
  	 * @param array $params array with oldpath and newpath
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  	 *
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  	 * This function is connected to the copy signal of OC_Filesystem and copies the
  	 * the stored versions to the new location
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  	 */
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  	public static function copy_hook($params) {
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  		if (\OCP\App::isEnabled('files_versions')) {
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  			$oldpath = $params['oldpath'];
  			$newpath = $params['newpath'];
  			if($oldpath<>'' && $newpath<>'') {
  				Storage::renameOrCopy($oldpath, $newpath, 'copy');
  			}
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  		}
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  	}
  
  }