githubFork/roundcubemail.git

			@@ -4,9 +4,12 @@
			+-----------------------------------------------------------------------+
			\| program/steps/mail/get.inc \|
			\| \|
			\| This file is part of the RoundCube Webmail client \|
			\| Copyright (C) 2005-2008, RoundCube Dev. - Switzerland \|
			\| Licensed under the GNU GPL \|
			\| This file is part of the Roundcube Webmail client \|
			\| Copyright (C) 2005-2011, The Roundcube Dev Team \|
			\| \|
			\| Licensed under the GNU General Public License version 3 or \|
			\| any later version with exceptions for skins & plugins. \|
			\| See the README file for a full license statement. \|
			\| \|
			\| PURPOSE: \|
			\| Delivering a specific part of a mail message \|
			@@ -14,27 +17,23 @@
			+-----------------------------------------------------------------------+
			\| Author: Thomas Bruederli <roundcube@gmail.com> \|
			+-----------------------------------------------------------------------+

			$Id$

			*/

			require_once('Mail/mimeDecode.php');


			// show loading page
			if (!empty($_GET['_preload'])) {
			$url = str_replace('&_preload=1', '', $_SERVER['REQUEST_URI']);
			$url = preg_replace('/[&?]+_preload=1/', '', $_SERVER['REQUEST_URI']);
			$message = rcube_label('loadingdata');

			print "<html>\n<head>\n" .
			'<meta http-equiv="refresh" content="0; url='.Q($url).'">' .
			"\n</head>\n<body>" .
			$message .
			"\n</body>\n</html>";
			header('Content-Type: text/html; charset=' . RCMAIL_CHARSET);
			print "<html>\n<head>\n"
			. '<meta http-equiv="refresh" content="0; url='.Q($url).'">' . "\n"
			. '<meta http-equiv="content-type" content="text/html; charset='.RCMAIL_CHARSET.'">' . "\n"
			. "</head>\n<body>\n$message\n</body>\n</html>";
			exit;
			}

			ob_end_clean();

			// similar code as in program/steps/mail/show.inc
			if (!empty($_GET['_uid'])) {
			@@ -42,70 +41,143 @@
			$MESSAGE = new rcube_message(get_input_value('_uid', RCUBE_INPUT_GET));
			}

			// check connection status
			check_storage_status();

			// 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->send('messagepart');
			exit;
			}

			else if ($pid = get_input_value('_part', RCUBE_INPUT_GET)) {
			else if (strlen($pid = get_input_value('_part', RCUBE_INPUT_GET))) {

			if ($part = $MESSAGE->mime_parts[$pid]) {
			$ctype_primary = strtolower($part->ctype_primary);
			$ctype_secondary = strtolower($part->ctype_secondary);
			$mimetype = sprintf('%s/%s', $ctype_primary, $ctype_secondary);

			header("Expires: 0");
			header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
			header("Cache-Control: private", false);
			header("Content-Transfer-Encoding: binary");
			// allow post-processing of the message body
			$plugin = $RCMAIL->plugins->exec_hook('message_part_get',
			array('uid' => $MESSAGE->uid, 'id' => $part->mime_id, 'mimetype' => $mimetype, 'part' => $part, 'download' => !empty($_GET['_download'])));

			if ($plugin['abort'])
			exit;

			// overwrite modified vars from plugin
			$mimetype = $plugin['mimetype'];
			list($ctype_primary, $ctype_secondary) = explode('/', $mimetype);
			if ($plugin['body'])
			$part->body = $plugin['body'];

			$browser = $RCMAIL->output->browser;

			// send download headers
			if ($_GET['_download']) {
			header("Cache-Control: private", false);
			if ($plugin['download']) {
			header("Content-Type: application/octet-stream");
			if ($browser->ie)
			header("Content-Type: application/force-download");
			}
			else if ($ctype_primary == 'text')
			header("Content-Type: text/$ctype_secondary; charset=" . RCMAIL_CHARSET);
			else
			else if ($ctype_primary == 'text') {
			header("Content-Type: text/$ctype_secondary; charset=" . ($part->charset ? $part->charset : RCMAIL_CHARSET));
			}
			else {
			$mimetype = rcmail_fix_mimetype($mimetype);
			header("Content-Type: $mimetype");

			// We need to set the following headers to make downloads work using IE in HTTPS mode.
			if (isset($_SERVER['HTTPS'])) {
			header('Pragma: ');
			header('Cache-Control: ');
			header("Content-Transfer-Encoding: binary");
			}

			// deliver part content
			if ($ctype_primary == 'text' && $ctype_secondary == 'html') {
			// we have to analyze the whole structure again to find inline objects
			/* what was this good for again ?
			list($new_parts, $new_attachments) =
			rcmail_parse_message($MESSAGE['structure'],
			array('safe' => intval($_GET['_safe']),
			'prefer_html' => TRUE,
			'get_url' => $GET_URL.'&_part=%s'));
			if ($ctype_primary == 'text' && $ctype_secondary == 'html' && empty($plugin['download'])) {
			// Check if we have enough memory to handle the message in it
			// #1487424: we need up to 10x more memory than the body
			if (!rcmail_mem_check($part->size * 10)) {
			$out = '<body>' . rcube_label('messagetoobig'). ' '
			. html::a('?_task=mail&_action=get&_download=1&_uid='.$MESSAGE->uid.'&_part='.$part->mime_id
			.'&_mbox='. urlencode($RCMAIL->storage->get_folder()), rcube_label('download')) . '</body></html>';
			}
			else {
			// get part body if not available
			if (!$part->body)
			$part->body = $MESSAGE->get_part_content($part->mime_id);

			$all_parts = array_merge($new_parts, $new_attachments);
			for ($partix = 0; $partix < sizeof($all_parts); $partix++)
			if ($all_parts[$partix]->mime_id == $pid)
			$part = &$all_parts[$partix];
			*/
			$out = rcmail_print_body($part, array('safe' => $MESSAGE->is_safe, 'inline_html' => false));
			}

			// get part body if not available
			if (!$part->body)
			$part->body = $MESSAGE->get_part_content($part->mime_id);
			// check connection status
			if ($part->size && empty($part->body)) {
			check_storage_status();
			}

			$OUTPUT = new rcube_html_page();
			$OUTPUT->write(rcmail_print_body($part, array('safe' => $MESSAGE->is_safe, 'inline_html' => false)));
			$OUTPUT = new rcube_output_html();
			$OUTPUT->write($out);
			}
			else {
			header(sprintf('Content-Disposition: %s; filename="%s";',
			$_GET['_download'] ? 'attachment' : 'inline',
			$part->filename ? abbreviate_string($part->filename, 55) : "roundcube.$ctype_secondary"));
			// don't kill the connection if download takes more than 30 sec.
			@set_time_limit(0);

			// turn off output buffering and print part content
			$IMAP->get_message_part($MESSAGE->uid, $part->mime_id, $part, true);
			if ($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);

			if ($browser->ie && $browser->ver < 7)
			$filename = rawurlencode(abbreviate_string($filename, 55));
			else if ($browser->ie)
			$filename = rawurlencode($filename);
			else
			$filename = addcslashes($filename, '"');

			$disposition = !empty($plugin['download']) ? 'attachment' : 'inline';

			header("Content-Disposition: $disposition; filename=\"$filename\"");

			// do content filtering to avoid XSS through fake images
			if (!empty($_REQUEST['_embed']) && $browser->ie && $browser->ver <= 8) {
			if ($part->body) {
			echo preg_match('/<(script\|iframe\|object)/i', $part->body) ? '' : $part->body;
			$sent = true;
			}
			else if ($part->size) {
			$stdout = fopen('php://output', 'w');
			stream_filter_register('rcube_content', 'rcube_content_filter') or die('Failed to register content filter');
			stream_filter_append($stdout, 'rcube_content');
			$sent = $RCMAIL->storage->get_message_part($MESSAGE->uid, $part->mime_id, $part, false, $stdout);
			}
			}
			else {
			// turn off output buffering and print part content
			if ($part->body) {
			echo $part->body;
			$sent = true;
			}
			else if ($part->size) {
			$sent = $RCMAIL->storage->get_message_part($MESSAGE->uid, $part->mime_id, $part, true);
			}
			}

			// check connection status
			if ($part->size && !$sent) {
			check_storage_status();
			}
			}

			exit;
			@@ -132,4 +204,35 @@
			header('HTTP/1.1 404 Not Found');
			exit;

			?>

			function check_storage_status()
			{
			$error = rcmail::get_instance()->storage->get_error_code();

			// Check if we have a connection error
			if ($error == rcube_imap_generic::ERROR_BAD) {
			ob_end_clean();

			// Get action is often executed simultanously.
			// Some servers have MAXPERIP or other limits.
			// To workaround this we'll wait for some time
			// and try again (once).
			// Note: Random sleep interval is used to minimize concurency
			// in getting message parts

			if (!isset($_GET['_redirected'])) {
			usleep(rand(10,30)*100000); // 1-3 sec.
			header('Location: ' . $_SERVER['REQUEST_URI'] . '&_redirected=1');
			}
			else {
			raise_error(array(
			'code' => 500, 'type' => 'php',
			'file' => __FILE__, 'line' => __LINE__,
			'message' => 'Unable to get/display message part. IMAP connection error'),
			true, true);
			}

			// Don't kill session, just quit (#1486995)
			exit;
			}
			}