| | |
| | | |
| | | // show loading page |
| | | if (!empty($_GET['_preload'])) { |
| | | $url = preg_replace('/[&?]+_preload=1/', '', $_SERVER['REQUEST_URI']); |
| | | $url = preg_replace('/([&?]+)_preload=/', '\\1_embed=', $_SERVER['REQUEST_URI']); |
| | | $message = rcube_label('loadingdata'); |
| | | |
| | | header('Content-Type: text/html; charset=' . RCMAIL_CHARSET); |
| | |
| | | // show part page |
| | | if (!empty($_GET['_frame'])) { |
| | | if (($part_id = get_input_value('_part', RCUBE_INPUT_GPC)) && ($part = $MESSAGE->mime_parts[$part_id])) { |
| | | $filename = $part->filename; |
| | | if (empty($filename) && $part->mimetype == 'text/html') { |
| | | $filename = rcube_label('htmlmessage'); |
| | | } |
| | | if (!empty($filename)) { |
| | | $OUTPUT->set_pagetitle($filename); |
| | | } |
| | | $OUTPUT->set_pagetitle(rcmail_attachment_name($part)); |
| | | } |
| | | |
| | | $OUTPUT->send('messagepart'); |
| | | exit; |
| | | } |
| | | |
| | | // render thumbnail of an image attachment |
| | | else if ($_GET['_thumb']) { |
| | | $pid = get_input_value('_part', RCUBE_INPUT_GET); |
| | | if ($part = $MESSAGE->mime_parts[$pid]) { |
| | | $thumbnail_size = $RCMAIL->config->get('image_thumbnail_size', 240); |
| | | $temp_dir = $RCMAIL->config->get('temp_dir'); |
| | | list(,$ext) = explode('/', $part->mimetype); |
| | | $cache_basename = $temp_dir . '/' . md5($MESSAGE->headers->messageID . $part->mime_id . ':' . $RCMAIL->user->ID . ':' . $thumbnail_size); |
| | | $cache_file = $cache_basename . '.' . $ext; |
| | | $mimetype = $part->mimetype; |
| | | |
| | | // render thumbnail image if not done yet |
| | | if (!is_file($cache_file)) { |
| | | $fp = fopen(($orig_name = $cache_basename . '.orig.' . $ext), 'w'); |
| | | $MESSAGE->get_part_content($part->mime_id, $fp); |
| | | fclose($fp); |
| | | |
| | | $image = new rcube_image($orig_name); |
| | | if ($imgtype = $image->resize($RCMAIL->config->get('image_thumbnail_size', 240), $cache_file, true)) { |
| | | $mimetype = 'image/' . $imgtype; |
| | | unlink($orig_name); |
| | | } |
| | | else { |
| | | rename($orig_name, $cache_file); |
| | | } |
| | | } |
| | | |
| | | if (is_file($cache_file)) { |
| | | header('Content-Type: ' . $mimetype); |
| | | readfile($cache_file); |
| | | } |
| | | } |
| | | |
| | | exit; |
| | | } |
| | | |
| | |
| | | |
| | | // overwrite modified vars from plugin |
| | | $mimetype = $plugin['mimetype']; |
| | | list($ctype_primary, $ctype_secondary) = explode('/', $mimetype); |
| | | $extensions = rcube_mime::get_mime_extensions($mimetype); |
| | | |
| | | if ($plugin['body']) |
| | | $part->body = $plugin['body']; |
| | | |
| | | |
| | | // compare file mimetype with the stated content-type headers and file extension to avoid malicious operations |
| | | if (!empty($_REQUEST['_embed']) && empty($_REQUEST['_nocheck'])) { |
| | | $file_extension = strtolower(pathinfo($part->filename, PATHINFO_EXTENSION)); |
| | | |
| | | // 1. compare filename suffix with expected suffix derived from mimetype |
| | | $valid = $file_extension && in_array($file_extension, (array)$extensions); |
| | | |
| | | // 2. detect the real mimetype of the attachment part and compare it with the stated mimetype and filename extension |
| | | if ($valid || !$file_extension || $mimetype == 'application/octet-stream') { |
| | | if ($part->body) // part body is already loaded |
| | | $body = $part->body; |
| | | else if ($part->size && $part->size < 1024*1024) // load the entire part if it's small enough |
| | | $body = $part->body = $MESSAGE->get_part_content($part->mime_id); |
| | | else // fetch the first 2K of the message part |
| | | $body = $MESSAGE->get_part_content($part->mime_id, null, true, 2048); |
| | | |
| | | // detect message part mimetype |
| | | $real_mimetype = rcube_mime::file_content_type($body, $part->filename, $mimetype, true, true); |
| | | list($real_ctype_primary, $real_ctype_secondary) = explode('/', $real_mimetype); |
| | | |
| | | // ignore differences in text/* mimetypes. Filetype detection isn't very reliable here |
| | | if ($real_ctype_primary == 'text' && strpos($mimetype, $real_ctype_primary) === 0) |
| | | $real_mimetype = $mimetype; |
| | | |
| | | // get valid file extensions |
| | | $extensions = rcube_mime::get_mime_extensions($real_mimetype); |
| | | $valid_extension = (!$file_extension || in_array($file_extension, (array)$extensions)); |
| | | |
| | | // fix mimetype for images wrongly declared as octet-stream |
| | | if ($mimetype == 'application/octet-stream' && strpos($real_mimetype, 'image/') === 0 && $valid_extension) |
| | | $mimetype = $real_mimetype; |
| | | |
| | | $valid = ($real_mimetype == $mimetype && $valid_extension); |
| | | } |
| | | else { |
| | | $real_mimetype = $mimetype; |
| | | } |
| | | |
| | | // show warning if validity checks failed |
| | | if (!$valid) { |
| | | $OUTPUT = new rcmail_html_page(); |
| | | $OUTPUT->write(html::tag('html', null, html::tag('body', array('style' => 'font-family:sans-serif; margin:1em'), |
| | | html::div(array('class' => 'warning', 'style' => 'border:2px solid #ffdf0e; background:#fef893; padding:1em 1em 0 1em;'), |
| | | rcube_label(array( |
| | | 'name' => 'attachmentvalidationerror', |
| | | 'vars' => array('expected' => "$mimetype (.$file_extension)", 'detected' => "$real_mimetype (.$extensions[0])") |
| | | )) . |
| | | html::p('buttons', |
| | | html::tag('button', |
| | | array('onclick' => "location.href='" . $RCMAIL->url(array_merge($_GET, array('_nocheck' => 1))) . "'"), |
| | | rcube_label('showanyway'))) |
| | | ) |
| | | ))); |
| | | exit; |
| | | } |
| | | } |
| | | |
| | | |
| | | // TIFF to JPEG conversion, if needed |
| | | $tiff_support = !empty($_SESSION['browser_caps']) && !empty($_SESSION['browser_caps']['tif']); |
| | | if (!empty($_REQUEST['_embed']) && !$tiff_support |
| | | && $RCMAIL->config->get('im_convert_path') |
| | | && rcmail_part_image_type($part) == 'image/tiff' |
| | | ) { |
| | | $tiff2jpeg = true; |
| | | $mimetype = 'image/jpeg'; |
| | | } |
| | | |
| | | |
| | | $browser = $RCMAIL->output->browser; |
| | | list($ctype_primary, $ctype_secondary) = explode('/', $mimetype); |
| | | |
| | | // send download headers |
| | | if ($plugin['download']) { |
| | |
| | | header("Content-Type: $mimetype"); |
| | | header("Content-Transfer-Encoding: binary"); |
| | | } |
| | | |
| | | |
| | | // deliver part content |
| | | if ($ctype_primary == 'text' && $ctype_secondary == 'html' && empty($plugin['download'])) { |
| | |
| | | check_storage_status(); |
| | | } |
| | | |
| | | $OUTPUT = new rcube_output_html(); |
| | | $OUTPUT = new rcube_html_page(); |
| | | $OUTPUT->write($out); |
| | | } |
| | | else { |
| | | // don't kill the connection if download takes more than 30 sec. |
| | | @set_time_limit(0); |
| | | |
| | | if ($part->filename) { |
| | | $filename = $part->filename; |
| | | } |
| | | else if ($part->mimetype == 'text/html') { |
| | | $filename = rcube_label('htmlmessage'); |
| | | } |
| | | else { |
| | | $ext = '.' . ($mimetype == 'text/plain' ? 'txt' : $ctype_secondary); |
| | | $filename = ($MESSAGE->subject ? $MESSAGE->subject : 'roundcube') . $ext; |
| | | } |
| | | |
| | | $filename = preg_replace('[\r\n]', '', $filename); |
| | | $filename = rcmail_attachment_name($part); |
| | | |
| | | if ($browser->ie && $browser->ver < 7) |
| | | $filename = rawurlencode(abbreviate_string($filename, 55)); |
| | |
| | | |
| | | $disposition = !empty($plugin['download']) ? 'attachment' : 'inline'; |
| | | |
| | | // Workaround for nasty IE bug (#1488844) |
| | | // If Content-Disposition header contains string "attachment" e.g. in filename |
| | | // IE handles data as attachment not inline |
| | | if ($disposition == 'inline' && $browser->ie && $browser->ver < 9) { |
| | | $filename = str_ireplace('attachment', 'attach', $filename); |
| | | } |
| | | |
| | | // add filename extension if missing |
| | | if (!pathinfo($filename, PATHINFO_EXTENSION) && ($extensions = rcube_mime::get_mime_extensions($mimetype))) { |
| | | $filename .= '.' . $extensions[0]; |
| | | } |
| | | |
| | | header("Content-Disposition: $disposition; filename=\"$filename\""); |
| | | |
| | | // handle tiff to jpeg conversion |
| | | if (!empty($tiff2jpeg)) { |
| | | $temp_dir = unslashify($RCMAIL->config->get('temp_dir')); |
| | | $file_path = tempnam($temp_dir, 'rcmAttmnt'); |
| | | |
| | | // write content to temp file |
| | | if ($part->body) { |
| | | $saved = file_put_contents($file_path, $part->body); |
| | | } |
| | | else if ($part->size) { |
| | | $fd = fopen($file_path, 'w'); |
| | | $saved = $RCMAIL->storage->get_message_part($MESSAGE->uid, $part->mime_id, $part, false, $fd); |
| | | fclose($fd); |
| | | } |
| | | |
| | | // convert image to jpeg and send it to the browser |
| | | if ($saved) { |
| | | $image = new rcube_image($file_path); |
| | | if ($image->convert(rcube_image::TYPE_JPG, $file_path)) { |
| | | header("Content-Length: " . filesize($file_path)); |
| | | readfile($file_path); |
| | | } |
| | | unlink($file_path); |
| | | } |
| | | } |
| | | // do content filtering to avoid XSS through fake images |
| | | if (!empty($_REQUEST['_embed']) && $browser->ie && $browser->ver <= 8) { |
| | | else if (!empty($_REQUEST['_embed']) && $browser->ie && $browser->ver <= 8) { |
| | | if ($part->body) { |
| | | echo preg_match('/<(script|iframe|object)/i', $part->body) ? '' : $part->body; |
| | | $sent = true; |
| | |
| | | $sent = $RCMAIL->storage->get_message_part($MESSAGE->uid, $part->mime_id, $part, false, $stdout); |
| | | } |
| | | } |
| | | // send part as-it-is |
| | | else { |
| | | // turn off output buffering and print part content |
| | | if ($part->body) { |
| | | header("Content-Length: " . strlen($part->body)); |
| | | echo $part->body; |
| | | $sent = true; |
| | | } |
| | | else if ($part->size) { |
| | | if ($size = (int)$part->d_parameters['size']) { |
| | | header("Content-Length: $size"); |
| | | } |
| | | |
| | | $sent = $RCMAIL->storage->get_message_part($MESSAGE->uid, $part->mime_id, $part, true); |
| | | } |
| | | } |