PHP OC_Response::disableCaching方法代码示例

 /**
  * @param string $filename
  * @param string $name
  */
 private static function sendHeaders($filename, $name)
 {
     OC_Response::setContentDispositionHeader($name, 'attachment');
     header('Content-Transfer-Encoding: binary');
     OC_Response::disableCaching();
     $filesize = \OC\Files\Filesystem::filesize($filename);
     header('Content-Type: ' . \OC_Helper::getSecureMimeType(\OC\Files\Filesystem::getMimeType($filename)));
     if ($filesize > -1) {
         OC_Response::setContentLengthHeader($filesize);
     }
 }

 /**
  * @param string $filename
  * @param string $name
  * @param boolean $isAttachment ; enforce download of file
  */
 private static function sendHeaders($filename, $name, $isAttachment = true)
 {
     if ($isAttachment) {
         OC_Response::setContentDispositionHeader($name, 'attachment');
     }
     header('Content-Transfer-Encoding: binary');
     OC_Response::disableCaching();
     $fileSize = \OC\Files\Filesystem::filesize($filename);
     $type = \OC::$server->getMimeTypeDetector()->getSecureMimeType(\OC\Files\Filesystem::getMimeType($filename));
     header('Content-Type: ' . $type);
     if ($fileSize > -1) {
         OC_Response::setContentLengthHeader($fileSize);
     }
 }

 /**
  * @param string $filename
  * @param string $name
  * @param bool $zip
  */
 private static function sendHeaders($filename, $name, $zip = false)
 {
     OC_Response::setContentDispositionHeader($name, 'attachment');
     header('Content-Transfer-Encoding: binary');
     OC_Response::disableCaching();
     if ($zip) {
         header('Content-Type: application/zip');
     } else {
         $filesize = \OC\Files\Filesystem::filesize($filename);
         header('Content-Type: ' . \OC\Files\Filesystem::getMimeType($filename));
         if ($filesize > -1) {
             header("Content-Length: " . $filesize);
         }
     }
 }

 /**
  * @param string $filename
  * @param string $name
  * @param array $rangeArray ('from'=>int,'to'=>int), ...
  */
 private static function sendHeaders($filename, $name, array $rangeArray)
 {
     OC_Response::setContentDispositionHeader($name, 'attachment');
     header('Content-Transfer-Encoding: binary', true);
     OC_Response::disableCaching();
     $fileSize = \OC\Files\Filesystem::filesize($filename);
     $type = \OC::$server->getMimeTypeDetector()->getSecureMimeType(\OC\Files\Filesystem::getMimeType($filename));
     if ($fileSize > -1) {
         if (!empty($rangeArray)) {
             header('HTTP/1.1 206 Partial Content', true);
             header('Accept-Ranges: bytes', true);
             if (count($rangeArray) > 1) {
                 $type = 'multipart/byteranges; boundary=' . self::getBoundary();
                 // no Content-Length header here
             } else {
                 header(sprintf('Content-Range: bytes %d-%d/%d', $rangeArray[0]['from'], $rangeArray[0]['to'], $fileSize), true);
                 OC_Response::setContentLengthHeader($rangeArray[0]['to'] - $rangeArray[0]['from'] + 1);
             }
         } else {
             OC_Response::setContentLengthHeader($fileSize);
         }
     }
     header('Content-Type: ' . $type, true);
 }

 /**
  * return the content of a file or return a zip file containning multiply files
  *
  * @param dir  $dir
  * @param file $file ; seperated list of files to download
  * @param boolean $only_header ; boolean to only send header of the request
  */
 public static function get($dir, $files, $only_header = false)
 {
     if (strpos($files, ';')) {
         $files = explode(';', $files);
     }
     if (is_array($files)) {
         self::validateZipDownload($dir, $files);
         $executionTime = intval(ini_get('max_execution_time'));
         set_time_limit(0);
         $zip = new ZipArchive();
         $filename = OC_Helper::tmpFile('.zip');
         if ($zip->open($filename, ZIPARCHIVE::CREATE | ZIPARCHIVE::OVERWRITE) !== TRUE) {
             exit("cannot open <{$filename}>\n");
         }
         foreach ($files as $file) {
             $file = $dir . '/' . $file;
             if (OC_Filesystem::is_file($file)) {
                 $tmpFile = OC_Filesystem::toTmpFile($file);
                 self::$tmpFiles[] = $tmpFile;
                 $zip->addFile($tmpFile, basename($file));
             } elseif (OC_Filesystem::is_dir($file)) {
                 self::zipAddDir($file, $zip);
             }
         }
         $zip->close();
         set_time_limit($executionTime);
     } elseif (OC_Filesystem::is_dir($dir . '/' . $files)) {
         self::validateZipDownload($dir, $files);
         $executionTime = intval(ini_get('max_execution_time'));
         set_time_limit(0);
         $zip = new ZipArchive();
         $filename = OC_Helper::tmpFile('.zip');
         if ($zip->open($filename, ZIPARCHIVE::CREATE | ZIPARCHIVE::OVERWRITE) !== TRUE) {
             exit("cannot open <{$filename}>\n");
         }
         $file = $dir . '/' . $files;
         self::zipAddDir($file, $zip);
         $zip->close();
         set_time_limit($executionTime);
     } else {
         $zip = false;
         $filename = $dir . '/' . $files;
     }
     @ob_end_clean();
     if ($zip or OC_Filesystem::is_readable($filename)) {
         header('Content-Disposition: attachment; filename="' . basename($filename) . '"');
         header('Content-Transfer-Encoding: binary');
         OC_Response::disableCaching();
         if ($zip) {
             ini_set('zlib.output_compression', 'off');
             header('Content-Type: application/zip');
             header('Content-Length: ' . filesize($filename));
         } else {
             $fileData = OC_FileCache::get($filename);
             header('Content-Type: ' . $fileData['mimetype']);
         }
     } elseif ($zip or !OC_Filesystem::file_exists($filename)) {
         header("HTTP/1.0 404 Not Found");
         $tmpl = new OC_Template('', '404', 'guest');
         $tmpl->assign('file', $filename);
         $tmpl->printPage();
     } else {
         header("HTTP/1.0 403 Forbidden");
         die('403 Forbidden');
     }
     if ($only_header) {
         if (!$zip) {
             header("Content-Length: " . OC_Filesystem::filesize($filename));
         }
         return;
     }
     if ($zip) {
         $handle = fopen($filename, 'r');
         if ($handle) {
             $chunkSize = 8 * 1024;
             // 1 MB chunks
             while (!feof($handle)) {
                 echo fread($handle, $chunkSize);
                 flush();
             }
         }
         unlink($filename);
     } else {
         OC_Filesystem::readfile($filename);
     }
     foreach (self::$tmpFiles as $tmpFile) {
         if (file_exists($tmpFile) and is_file($tmpFile)) {
             unlink($tmpFile);
         }
     }
 }

 /**
  * Disable browser caching
  * @see enableCaching with cache_time = 0
  */
 public static function disableCaching()
 {
     \OC_Response::disableCaching();
 }

 /**
  * return the content of a file or return a zip file containing multiple files
  *
  * @param string $dir
  * @param string $file ; separated list of files to download
  * @param boolean $only_header ; boolean to only send header of the request
  */
 public static function get($dir, $files, $only_header = false)
 {
     $xsendfile = false;
     if (isset($_SERVER['MOD_X_SENDFILE_ENABLED']) || isset($_SERVER['MOD_X_SENDFILE2_ENABLED']) || isset($_SERVER['MOD_X_ACCEL_REDIRECT_ENABLED'])) {
         $xsendfile = true;
     }
     if (is_array($files) && count($files) == 1) {
         $files = $files[0];
     }
     if (is_array($files)) {
         self::validateZipDownload($dir, $files);
         $executionTime = intval(ini_get('max_execution_time'));
         set_time_limit(0);
         $zip = new ZipArchive();
         $filename = OC_Helper::tmpFile('.zip');
         if ($zip->open($filename, ZIPARCHIVE::CREATE | ZIPARCHIVE::OVERWRITE) !== true) {
             $l = OC_L10N::get('lib');
             throw new Exception($l->t('cannot open "%s"', array($filename)));
         }
         foreach ($files as $file) {
             $file = $dir . '/' . $file;
             if (\OC\Files\Filesystem::is_file($file)) {
                 $tmpFile = \OC\Files\Filesystem::toTmpFile($file);
                 self::$tmpFiles[] = $tmpFile;
                 $zip->addFile($tmpFile, basename($file));
             } elseif (\OC\Files\Filesystem::is_dir($file)) {
                 self::zipAddDir($file, $zip);
             }
         }
         $zip->close();
         if ($xsendfile) {
             $filename = OC_Helper::moveToNoClean($filename);
         }
         $basename = basename($dir);
         if ($basename) {
             $name = $basename . '.zip';
         } else {
             $name = 'download.zip';
         }
         set_time_limit($executionTime);
     } elseif (\OC\Files\Filesystem::is_dir($dir . '/' . $files)) {
         self::validateZipDownload($dir, $files);
         $executionTime = intval(ini_get('max_execution_time'));
         set_time_limit(0);
         $zip = new ZipArchive();
         $filename = OC_Helper::tmpFile('.zip');
         if ($zip->open($filename, ZIPARCHIVE::CREATE | ZIPARCHIVE::OVERWRITE) !== true) {
             $l = OC_L10N::get('lib');
             throw new Exception($l->t('cannot open "%s"', array($filename)));
         }
         $file = $dir . '/' . $files;
         self::zipAddDir($file, $zip);
         $zip->close();
         if ($xsendfile) {
             $filename = OC_Helper::moveToNoClean($filename);
         }
         $name = $files . '.zip';
         set_time_limit($executionTime);
     } else {
         $zip = false;
         $filename = $dir . '/' . $files;
         $name = $files;
         if ($xsendfile && OC_App::isEnabled('files_encryption')) {
             $xsendfile = false;
         }
     }
     OC_Util::obEnd();
     if ($zip or \OC\Files\Filesystem::isReadable($filename)) {
         OC_Response::setContentDispositionHeader($name, 'attachment');
         header('Content-Transfer-Encoding: binary');
         OC_Response::disableCaching();
         if ($zip) {
             ini_set('zlib.output_compression', 'off');
             header('Content-Type: application/zip');
             header('Content-Length: ' . filesize($filename));
             self::addSendfileHeader($filename);
         } else {
             $filesize = \OC\Files\Filesystem::filesize($filename);
             header('Content-Type: ' . \OC\Files\Filesystem::getMimeType($filename));
             if ($filesize > -1) {
                 header("Content-Length: " . $filesize);
             }
             if ($xsendfile) {
                 list($storage) = \OC\Files\Filesystem::resolvePath(\OC\Files\Filesystem::getView()->getAbsolutePath($filename));
                 /**
                  * @var \OC\Files\Storage\Storage $storage
                  */
                 if ($storage->instanceOfStorage('\\OC\\Files\\Storage\\Local')) {
                     self::addSendfileHeader(\OC\Files\Filesystem::getLocalFile($filename));
                 }
             }
         }
     } elseif ($zip or !\OC\Files\Filesystem::file_exists($filename)) {
//.........这里部分代码省略.........

 public static function getTmpAvatar($args)
 {
     \OC_JSON::checkLoggedIn();
     \OC_JSON::callCheck();
     $tmpavatar = \OC_Cache::get('tmpavatar');
     if (is_null($tmpavatar)) {
         $l = new \OC_L10n('core');
         \OC_JSON::error(array("data" => array("message" => $l->t("No temporary profile picture available, try again"))));
         return;
     }
     $image = new \OC_Image($tmpavatar);
     \OC_Response::disableCaching();
     \OC_Response::setLastModifiedHeader(time());
     \OC_Response::setETagHeader(crc32($image->data()));
     $image->show();
 }

 /**
  * return the content of a file or return a zip file containing multiple files
  *
  * @param string $dir
  * @param string $file ; separated list of files to download
  * @param boolean $only_header ; boolean to only send header of the request
  */
 public static function get($dir, $files, $only_header = false)
 {
     $xsendfile = false;
     if (isset($_SERVER['MOD_X_SENDFILE_ENABLED']) || isset($_SERVER['MOD_X_ACCEL_REDIRECT_ENABLED'])) {
         $xsendfile = true;
     }
     if (is_array($files) && count($files) == 1) {
         $files = $files[0];
     }
     if (is_array($files)) {
         self::validateZipDownload($dir, $files);
         $executionTime = intval(ini_get('max_execution_time'));
         set_time_limit(0);
         $zip = new ZipArchive();
         if ($xsendfile) {
             $filename = OC_Helper::tmpFileNoClean('.zip');
         } else {
             $filename = OC_Helper::tmpFile('.zip');
         }
         if ($zip->open($filename, ZIPARCHIVE::CREATE | ZIPARCHIVE::OVERWRITE) !== true) {
             exit("cannot open <{$filename}>\n");
         }
         foreach ($files as $file) {
             $file = $dir . '/' . $file;
             if (\OC\Files\Filesystem::is_file($file)) {
                 $tmpFile = \OC\Files\Filesystem::toTmpFile($file);
                 self::$tmpFiles[] = $tmpFile;
                 $zip->addFile($tmpFile, basename($file));
             } elseif (\OC\Files\Filesystem::is_dir($file)) {
                 self::zipAddDir($file, $zip);
             }
         }
         $zip->close();
         $basename = basename($dir);
         if ($basename) {
             $name = $basename . '.zip';
         } else {
             $name = 'owncloud.zip';
         }
         set_time_limit($executionTime);
     } elseif (\OC\Files\Filesystem::is_dir($dir . '/' . $files)) {
         self::validateZipDownload($dir, $files);
         $executionTime = intval(ini_get('max_execution_time'));
         set_time_limit(0);
         $zip = new ZipArchive();
         if ($xsendfile) {
             $filename = OC_Helper::tmpFileNoClean('.zip');
         } else {
             $filename = OC_Helper::tmpFile('.zip');
         }
         if ($zip->open($filename, ZIPARCHIVE::CREATE | ZIPARCHIVE::OVERWRITE) !== true) {
             exit("cannot open <{$filename}>\n");
         }
         $file = $dir . '/' . $files;
         self::zipAddDir($file, $zip);
         $zip->close();
         $name = $files . '.zip';
         set_time_limit($executionTime);
     } else {
         $zip = false;
         $filename = $dir . '/' . $files;
         $name = $files;
     }
     OC_Util::obEnd();
     if ($zip or \OC\Files\Filesystem::isReadable($filename)) {
         if (preg_match("/MSIE/", $_SERVER["HTTP_USER_AGENT"])) {
             header('Content-Disposition: attachment; filename="' . rawurlencode($name) . '"');
         } else {
             header('Content-Disposition: attachment; filename*=UTF-8\'\'' . rawurlencode($name) . '; filename="' . rawurlencode($name) . '"');
         }
         header('Content-Transfer-Encoding: binary');
         OC_Response::disableCaching();
         if ($zip) {
             ini_set('zlib.output_compression', 'off');
             header('Content-Type: application/zip');
             header('Content-Length: ' . filesize($filename));
             self::addSendfileHeader($filename);
         } else {
             header('Content-Type: ' . \OC\Files\Filesystem::getMimeType($filename));
             header("Content-Length: " . \OC\Files\Filesystem::filesize($filename));
             list($storage) = \OC\Files\Filesystem::resolvePath($filename);
             if ($storage instanceof \OC\Files\Storage\Local) {
                 self::addSendfileHeader(\OC\Files\Filesystem::getLocalFile($filename));
             }
         }
     } elseif ($zip or !\OC\Files\Filesystem::file_exists($filename)) {
         header("HTTP/1.0 404 Not Found");
         $tmpl = new OC_Template('', '404', 'guest');
         $tmpl->assign('file', $name);
         $tmpl->printPage();
     } else {
         header("HTTP/1.0 403 Forbidden");
         die('403 Forbidden');
//.........这里部分代码省略.........