PHP JSON::encode方法代码示例

 /**
  * @NoAdminRequired
  * @NoCSRFRequired
  * @SSOCORS
  */
 public function upload($dir = '/')
 {
     \OC::$server->getSession()->close();
     // Firefox and Konqueror tries to download application/json for me.  --Arthur
     \OCP\JSON::setContentTypeHeader('text/plain');
     // If a directory token is sent along check if public upload is permitted.
     // If not, check the login.
     // If no token is sent along, rely on login only
     $allowedPermissions = \OCP\Constants::PERMISSION_ALL;
     $errorCode = null;
     if (\OC\Files\Filesystem::file_exists($dir) === false) {
         return new DataResponse(array('data' => array_merge(array('message' => 'Invalid directory.')), 'status' => 'error'));
     }
     // get array with current storage stats (e.g. max file size)
     $storageStats = \OCA\Files\Helper::buildFileStorageStatistics($dir);
     $files = $this->request->getUploadedFile('files');
     if (!isset($files)) {
         return new DataResponse(array('data' => array_merge(array('message' => 'No file was uploaded. Unknown error'), $storageStats), 'status' => 'error'));
     }
     foreach ($files['error'] as $error) {
         if ($error != 0) {
             $errors = array(UPLOAD_ERR_OK => 'There is no error, the file uploaded with success', UPLOAD_ERR_INI_SIZE => 'The uploaded file exceeds the upload_max_filesize directive in php.ini: ' . ini_get('upload_max_filesize'), UPLOAD_ERR_FORM_SIZE => 'The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form', UPLOAD_ERR_PARTIAL => 'The uploaded file was only partially uploaded', UPLOAD_ERR_NO_FILE => 'No file was uploaded', UPLOAD_ERR_NO_TMP_DIR => 'Missing a temporary folder', UPLOAD_ERR_CANT_WRITE => 'Failed to write to disk');
             $errorMessage = $errors[$error];
             \OC::$server->getLogger()->alert("Upload error: {$error} - {$errorMessage}", array('app' => 'files'));
             return new DataResponse(array('data' => array_merge(array('message' => $errorMessage), $storageStats), 'status' => 'error'));
         }
     }
     $error = false;
     $maxUploadFileSize = $storageStats['uploadMaxFilesize'];
     $maxHumanFileSize = \OCP\Util::humanFileSize($maxUploadFileSize);
     $totalSize = 0;
     foreach ($files['size'] as $size) {
         $totalSize += $size;
     }
     if ($maxUploadFileSize >= 0 and $totalSize > $maxUploadFileSize) {
         return new DataResponse(array('data' => array('message' => 'Not enough storage available', 'uploadMaxFilesize' => $maxUploadFileSize, '   maxHumanFilesize' => $maxHumanFileSize), 'status' => 'error'));
     }
     $result = array();
     $fileCount = count($files['name']);
     for ($i = 0; $i < $fileCount; $i++) {
         // target directory for when uploading folders
         $relativePath = '';
         $target = \OC\Files\Filesystem::normalizePath($dir . $relativePath . '/' . $files['name'][$i]);
         // relative dir to return to the client
         if (isset($publicDirectory)) {
             // path relative to the public root
             $returnedDir = $publicDirectory . $relativePath;
         } else {
             // full path
             $returnedDir = $dir . $relativePath;
         }
         $returnedDir = \OC\Files\Filesystem::normalizePath($returnedDir);
         $exists = \OC\Files\Filesystem::file_exists($target);
         if ($exists) {
             $target = \OCP\Files::buildNotExistingFileName($dir . $relativePath, $files['name'][$i]);
         }
         try {
             if (is_uploaded_file($files['tmp_name'][$i]) and \OC\Files\Filesystem::fromTmpFile($files['tmp_name'][$i], $target)) {
                 // updated max file size after upload
                 $storageStats = \OCA\Files\Helper::buildFileStorageStatistics($dir);
                 $meta = \OC\Files\Filesystem::getFileInfo($target);
                 if ($meta === false) {
                     $error = 'The target folder has been moved or deleted.';
                     $errorCode = 'targetnotfound';
                 } else {
                     $data = \OCA\Files\Helper::formatFileInfo($meta);
                     $data['originalname'] = $files['name'][$i];
                     $data['uploadMaxFilesize'] = $maxUploadFileSize;
                     $data['maxHumanFilesize'] = $maxHumanFileSize;
                     $data['permissions'] = $meta['permissions'] & $allowedPermissions;
                     $data['directory'] = $returnedDir;
                     $result[] = $data;
                 }
             } else {
                 $error = 'Upload failed. Could not find uploaded file';
             }
         } catch (Exception $ex) {
             $error = $ex->getMessage();
         }
     }
     if ($error === false) {
         $result = \OCP\JSON::encode($result);
         return new DataResponse(array('data' => $result, 'status' => 'success'));
     } else {
         return new DataResponse(array('data' => array_merge(array('message' => $error, 'code' => $errorCode), $storageStats), 'status' => 'error'));
     }
 }