File controllers/files_controller.php | BEdita API doc

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<?php
/*-----8<--------------------------------------------------------------------
 *
 * BEdita - a semantic content management framework
 *
 * Copyright 2008 ChannelWeb Srl, Chialab Srl
 *
 * This file is part of BEdita: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * BEdita is distributed WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Lesser General Public License for more details.
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with BEdita (see LICENSE.LGPL).
 * If not, see <http://gnu.org/licenses/lgpl-3.0.html>.
 *
 *------------------------------------------------------------------->8-----
 */

/**
 *
 *
 * @version         $Revision$
 * @modifiedby      $LastChangedBy$
 * @lastmodified    $LastChangedDate$
 *
 * $Id$
 */
class FilesController extends AppController {

    var $helpers    = array('Html');
    var $uses       = array('Stream','BEObject') ;
    var $components = array('Transaction', 'BeUploadToObj', 'RequestHandler', 'BeSecurity');

    function upload() {
        try {
            $this->Transaction->begin();
            $id = $this->BeUploadToObj->upload();
            $this->Transaction->commit();
            $response = array('id' => $id);
        } catch (BeditaException $ex) {
            throw new BeditaAjaxException($ex->getMessage(), array(
                'output' => 'json',
                'headers' => array('HTTP/1.1 409 Conflict')
            ));
        }

        $this->layout = 'ajax';
        $this->RequestHandler->respondAs('json');
        $this->set('data', $response);
        $this->view = 'View';
        $this->render('/pages/json');
    }

    function uploadAjax($uploadSuffix = null) {
        $this->layout = "ajax";
        try {
            $this->Transaction->begin() ;
            $formUploadFields = 'streamUploaded';
            $formFileName = 'Filedata';
            if (!empty($uploadSuffix)) {
                $formUploadFields .= $uploadSuffix;
                unset($this->params["form"]["Filedata"]);
                $formFileName .= $uploadSuffix;
            }
            $this->params['form'][$formUploadFields]['lang'] = $this->data["lang"];
            $id = $this->BeUploadToObj->upload($this->params["form"][$formUploadFields],$formFileName) ;
            $this->Transaction->commit();
            $this->set("fileId", $id);
            $this->set("fileUploaded", true);
        } catch(BeditaException $ex) {
            $errTrace = get_class($ex) . " - " . $ex->getMessage()."\nFile: ".$ex->getFile()." - line: ".$ex->getLine()."\nTrace:\n".$ex->getTraceAsString();
            $this->handleError($ex->getMessage(), $ex->getMessage(), $errTrace);
            $this->setResult(self::ERROR);
            $this->set("errorMsg", $ex->getMessage());
        }
    }

    function uploadAjaxMediaProvider() {
        $this->layout = "ajax";
        header("Content-Type: application/json");
        try {
            if (!isset($this->params['form']['uploadByUrl']['url']))
                throw new BEditaException(__("Error during upload: missing url",true)) ;

            $this->params['form']['uploadByUrl']['lang'] = $this->data["lang"];

            $this->Transaction->begin() ;
            $id = $this->BeUploadToObj->uploadFromURL($this->params['form']['uploadByUrl']) ;
            $this->Transaction->commit();
            $this->set("fileId", $id);

        } catch(BeditaException $ex) {
            $errTrace = get_class($ex) . " - " . $ex->getMessage()."\nFile: ".$ex->getFile()." - line: ".$ex->getLine()."\nTrace:\n".$ex->getTraceAsString();
            $this->handleError($ex->getMessage(), $ex->getMessage(), $errTrace);
            $this->setResult(self::ERROR);
            $this->set("errorMsg", $ex->getMessage());
        }
    }

    /**
     * Delete a Stream object (using _POST filename to find stream)
     */
    function deleteFile() {
        if(!isset($this->params['form']['filename'])) throw new BeditaException(sprintf(__("No data", true), $id));
        $this->Transaction->begin() ;
        // Get object id from filename
        if(!($id = $this->Stream->getIdFromFilename($this->params['form']['filename']))) throw new BeditaException(sprintf(__("Error getting id object: %s", true), $this->params['form']['filename']));
        // Delete data
        if(!$this->BeFileHandler->del($id)) throw new BeditaException(sprintf(__("Error deleting object: %d", true), $id));
        $this->Transaction->commit() ;
        $this->layout = "empty" ;
    }

    protected function beforeCheckLogin() {
        // multiple upload
        if ($this->RequestHandler->isFlash()) {
            $this->skipCheck = true;
        }
    }

    /**
     * Override AppController handleError to not save message in session
     */
    public function handleError($eventMsg, $userMsg, $errTrace) {
        $this->log($errTrace);
        // end transactions if necessary
        if($this->Transaction->started()) {
            $this->Transaction->rollback();
        }
    }

    protected function forward($action, $result) {
        $redirect = array(
            'uploadAjax' => array(
                'OK' => self::VIEW_FWD . 'upload_ajax_response',
                'ERROR' => self::VIEW_FWD . 'upload_ajax_response'
            ),
            'uploadAjaxMediaProvider' => array(
                'OK' => self::VIEW_FWD . 'upload_ajax_response',
                'ERROR' => self::VIEW_FWD . 'upload_ajax_response'
            )
        );
        if (isset($redirect[$action][$result])) {
            return $redirect[$action][$result];
        }
        return false;
    }

}

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