PHP FSS_Helper::datei_mime方法代码示例

 static function DownloadFile($filename, $display_name, $ext = "")
 {
     // TODO: We need a much better piece of code for downloading files here
     // it will end up being used for large attachments etc so needs to work with big files!
     if ($ext == "") {
         $ext = pathinfo($display_name, PATHINFO_EXTENSION);
     }
     $ctype = FSS_Helper::datei_mime($ext);
     ob_end_clean();
     while (ob_get_level() > 0) {
         ob_end_clean();
     }
     ini_set('zlib.output_compression', 'Off');
     ini_set('output_buffering', 'Off');
     ini_set('output_handler', '');
     if (function_exists("apache_setenv")) {
         apache_setenv('no-gzip', 1);
     }
     require_once JPATH_SITE . DS . 'components' . DS . 'com_fss' . DS . 'helper' . DS . 'bigfiletools.php';
     $f = BigFileTools::fromPath($filename);
     $file_size = $f->getSize();
     header("Pragma: no-cache");
     header("Expires: -1");
     header("Cache-Control: public, must-revalidate, post-check=0, pre-check=0");
     header("Content-Type: " . $ctype);
     header("Content-Disposition: attachment; filename=\"{$display_name}\"");
     //check if http_range is sent by browser (or download manager)
     if (isset($_SERVER['HTTP_RANGE'])) {
         list($size_unit, $range_orig) = explode('=', $_SERVER['HTTP_RANGE'], 2);
         if ($size_unit == 'bytes') {
             //multiple ranges could be specified at the same time, but for simplicity only serve the first range
             //http://tools.ietf.org/id/draft-ietf-http-range-retrieval-00.txt
             list($range, $extra_ranges) = explode(',', $range_orig, 2);
         } else {
             $range = '';
             header('HTTP/1.1 416 Requested Range Not Satisfiable');
             exit;
         }
     } else {
         $range = '';
     }
     //figure out download piece from range (if set)
     if ($range && strpos($range, "-") !== false) {
         list($seek_start, $seek_end) = @explode('-', $range, 2);
     } else {
         $seek_start = 0;
         $seek_end = 0;
     }
     //set start and end based on range (if set), else set defaults
     //also check for invalid ranges.
     $seek_end = empty($seek_end) ? $file_size - 1 : min(abs(intval($seek_end)), $file_size - 1);
     $seek_start = empty($seek_start) || $seek_end < abs(intval($seek_start)) ? 0 : max(abs(intval($seek_start)), 0);
     //Only send partial content header if downloading a piece of the file (IE workaround)
     if ($seek_start > 0 || $seek_end < $file_size - 1) {
         header('HTTP/1.1 206 Partial Content');
         header('Content-Range: bytes ' . $seek_start . '-' . $seek_end . '/' . $file_size);
         header('Content-Length: ' . ($seek_end - $seek_start + 1));
     } else {
         header("Content-Length: {$file_size}");
     }
     set_time_limit(0);
     $file = fopen($filename, "rb");
     while (!feof($file)) {
         echo @fread($file, 1024 * 256);
         @ob_flush();
         @flush();
         if (connection_status() != 0) {
             @fclose($file);
             exit;
         }
     }
     @fclose($file);
     exit;
 }

 function downloadFile()
 {
     $fileid = FSS_Input::getInt('fileid');
     $db = JFactory::getDBO();
     $query = 'SELECT * FROM #__fss_kb_attach WHERE id = "' . FSSJ3Helper::getEscaped($db, $fileid) . '"';
     $db->setQuery($query);
     $row = $db->loadAssoc();
     $filename = FSS_Helper::basename($row['filename']);
     $file_extension = strtolower(substr(strrchr($filename, "."), 1));
     $ctype = FSS_Helper::datei_mime($file_extension);
     if (ob_get_level() > 0) {
         ob_end_clean();
     }
     $file = JPATH_SITE . DS . FSS_Settings::get('attach_location') . DS . 'kb' . DS . $row['diskfile'];
     if (!file_exists($file)) {
         $file = JPATH_SITE . DS . FSS_Settings::get('attach_location') . DS . $row['diskfile'];
     }
     if (!file_exists($file)) {
         echo "File not found - " . $row['diskfile'] . "<br />";
         echo "Paths Tested:<br />";
         echo "<ul>";
         echo "<li>" . JPATH_SITE . DS . FSS_Settings::get('attach_location') . DS . 'kb' . "</li>";
         echo "<li>" . JPATH_SITE . DS . FSS_Settings::get('attach_location') . "</li>";
         echo "</ul>";
         return;
     }
     header("Cache-Control: public, must-revalidate");
     header('Cache-Control: pre-check=0, post-check=0, max-age=0');
     header("Pragma: no-cache");
     header("Expires: 0");
     header("Content-Description: File Transfer");
     header("Expires: Sat, 26 Jul 1997 05:00:00 GMT");
     header("Content-Type: " . $ctype);
     //header("Content-Length: ".(string)$row['size']);
     header('Content-Disposition: attachment; filename="' . $filename . '"');
     header("Content-Transfer-Encoding: binary\n");
     //echo getcwd(). "<br>";
     //echo $file;
     readfile($file);
     exit;
 }

 function download()
 {
     $fileid = JRequest::getVar('fileid', 0, '', 'int');
     $db = JFactory::getDBO();
     $query = 'SELECT * FROM #__fss_kb_attach WHERE id = "' . FSSJ3Helper::getEscaped($db, $fileid) . '"';
     $db->setQuery($query);
     $row = $db->loadAssoc();
     $filename = FSS_Helper::basename($row['filename']);
     $file_extension = strtolower(substr(strrchr($filename, "."), 1));
     $ctype = FSS_Helper::datei_mime($file_extension);
     while (ob_get_level() > 0) {
         ob_end_clean();
     }
     header("Cache-Control: public, must-revalidate");
     header('Cache-Control: pre-check=0, post-check=0, max-age=0');
     header("Pragma: no-cache");
     header("Expires: 0");
     header("Content-Description: File Transfer");
     header("Expires: Sat, 26 Jul 1997 05:00:00 GMT");
     header("Content-Type: " . $ctype);
     //header("Content-Length: ".(string)$row['size']);
     header('Content-Disposition: attachment; filename="' . $filename . '"');
     header("Content-Transfer-Encoding: binary\n");
     //echo getcwd(). "<br>";
     $file = "../components/com_fss/files/" . $row['diskfile'];
     //echo $file;
     @readfile($file);
     exit;
 }