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sources/apps/documents/lib/genesis.php 2.92 KB
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d1bafeea1   Kload   [fix] Upgrade to ... 
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  <?php
  /**
   * ownCloud - Documents App
   *
   * @author Victor Dubiniuk
   * @copyright 2013 Victor Dubiniuk victor.dubiniuk@gmail.com
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
   * License as published by the Free Software Foundation; either 
   * version 3 of the License, or any later version.
   * 
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
   *
6d9380f96   Cédric Dupont   Update sources OC... 
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   * You should have received a copy of the GNU Affero General Public
d1bafeea1   Kload   [fix] Upgrade to ... 
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   * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
   * 
   */
  
  namespace OCA\Documents;
  
  class Genesis {
  	
  	const DOCUMENTS_DIRNAME='/documents';
  	
  	protected $view;
  	
  	protected $path;
  	
  	protected $hash;
  	
  	
  	/**
  	 * Create new genesis document
  	 * @param OCA\Documents\File $file 
  	 * */	
  	public function __construct(\OCA\Documents\File $file){
  		list($view, $path) = $file->getOwnerViewAndPath();
  		$owner = $file->getOwner();
  		
  		$this->view = new View('/' . $owner);
  		
  		if (!$this->view->file_exists(self::DOCUMENTS_DIRNAME)){
  			$this->view->mkdir(self::DOCUMENTS_DIRNAME );
  		}
  		
  		$this->hash = $this->getDocumentHash($view, $path);
  		$this->path = self::DOCUMENTS_DIRNAME . '/' . $this->hash . '.odt';
  		if (!$this->view->file_exists($this->path)){
  			//copy new genesis to /user/documents/{hash}.odt
  			// get decrypted content
  			$content = $view->file_get_contents($path);
  			$mimetype = $view->getMimeType($path);
  			
  			$data = Filter::read($content, $mimetype);
  			
  			$proxyStatus = \OC_FileProxy::$enabled;
  			\OC_FileProxy::$enabled = false;	
  			
  			$this->view->file_put_contents($this->path, $data['content']);
  			\OC_FileProxy::$enabled = $proxyStatus;
  		}
  		
  		try {
  			$this->validate($this->view, $this->path);
  		} catch (\Exception $e){
  			throw new \Exception('Failed to copy genesis');
  		}
  	}
  	
  	public function getPath(){
  		return $this->path;
  	}
  	
  	public function getHash(){
  		return $this->hash;
  	}
  	
  	public static function getHashByPath($path){
  		return preg_replace('|([a-zA-Z0-9])*\..*$|', '\1', $path);
  	}
  	
  	protected function getDocumentHash($view, $path){
  		$this->validate($view, $path);
  		$proxyStatus = \OC_FileProxy::$enabled;
  		\OC_FileProxy::$enabled = false;
  		
  		$hash = sha1($view->file_get_contents($path));
  		
  		\OC_FileProxy::$enabled = $proxyStatus;
  		return $hash;
  	}
  	
  	/**
  	 * Check if genesis is valid
  	 * @param OCA\Documents\View $view 
  	 * @param string $path relative to the view
  	 * @throws \Exception
  	 */
  	protected function validate($view, $path){
  		if (!$view->file_exists($path)){
  			throw new \Exception('Document not found ' . $path);
  		}
  		if (!$view->is_file($path)){
  			throw new \Exception('Object ' . $path . ' is not a file.');
  		}
  		//TODO check if it is a valid odt
  	}
  
  }