githubFork/roundcubemail.git

Aleksander Machniak

2013-05-07 3725cfb245bfae3a77baf857ea5403e8064b84b9

commit \| author \| age
8fa58e	1	<?php
T	2
	3	/*
	4	+-----------------------------------------------------------------------+
e019f2	5	\| This file is part of the Roundcube Webmail client \|
f5e7b3	6	\| Copyright (C) 2008-2010, The Roundcube Dev Team \|
7fe381	7	\| \|
T	8	\| Licensed under the GNU General Public License version 3 or \|
	9	\| any later version with exceptions for skins & plugins. \|
	10	\| See the README file for a full license statement. \|
8fa58e	11	\| \|
T	12	\| PURPOSE: \|
	13	\| Logical representation of a mail message with all its data \|
	14	\| and related functions \|
	15	+-----------------------------------------------------------------------+
	16	\| Author: Thomas Bruederli <roundcube@gmail.com> \|
	17	+-----------------------------------------------------------------------+
	18	*/
	19
	20	/**
45f56c	21	* Logical representation of a mail message with all its data
T	22	* and related functions
8fa58e	23	*
9ab346	24	* @package Framework
AM	25	* @subpackage Storage
8fa58e	26	* @author Thomas Bruederli <roundcube@gmail.com>
T	27	*/
	28	class rcube_message
	29	{
5c461b	30	/**
be98df	31	* Instace of framework class.
5c461b	32	*
be98df	33	* @var rcube
5c461b	34	*/
d311d8	35	private $app;
5c461b	36
A	37	/**
8b92d2	38	* Instance of storage class
5c461b	39	*
8b92d2	40	* @var rcube_storage
5c461b	41	*/
8b92d2	42	private $storage;
1c4f23	43
A	44	/**
	45	* Instance of mime class
	46	*
	47	* @var rcube_mime
	48	*/
	49	private $mime;
d311d8	50	private $opt = array();
A	51	private $parse_alternative = false;
2ae58f	52
10562d	53	public $uid;
AM	54	public $folder;
d311d8	55	public $headers;
A	56	public $parts = array();
	57	public $mime_parts = array();
287eff	58	public $inline_parts = array();
d311d8	59	public $attachments = array();
A	60	public $subject = '';
	61	public $sender = null;
	62	public $is_safe = false;
2ae58f	63
193fb4	64
d311d8	65	/**
A	66	* __construct
	67	*
	68	* Provide a uid, and parse message structure.
	69	*
10562d	70	* @param string $uid The message UID.
AM	71	* @param string $folder Folder name
d311d8	72	*
8b92d2	73	* @see self::$app, self::$storage, self::$opt, self::$parts
d311d8	74	*/
10562d	75	function __construct($uid, $folder = null)
8fa58e	76	{
1c4f23	77	$this->uid = $uid;
0c2596	78	$this->app = rcube::get_instance();
c321a9	79	$this->storage = $this->app->get_storage();
10562d	80	$this->folder = strlen($folder) ? $folder : $this->storage->get_folder();
c321a9	81	$this->storage->set_options(array('all_headers' => true));
10562d	82
AM	83	// Set current folder
	84	$this->storage->set_folder($this->folder);
64e3e8	85
c321a9	86	$this->headers = $this->storage->get_message($uid);
64e3e8	87
4fdaa0	88	if (!$this->headers) {
64e3e8	89	return;
4fdaa0	90	}
8fa58e	91
1c4f23	92	$this->mime = new rcube_mime($this->headers->charset);
A	93
4fdaa0	94	$this->subject = $this->headers->get('subject');
1c4f23	95	list(, $this->sender) = each($this->mime->decode_address_list($this->headers->from, 1));
64e3e8	96
f11142	97	$this->set_safe((intval($_GET['_safe']) \|\| $_SESSION['safe_messages'][$this->folder.':'.$uid]));
d311d8	98	$this->opt = array(
A	99	'safe' => $this->is_safe,
	100	'prefer_html' => $this->app->config->get('prefer_html'),
0c2596	101	'get_url' => $this->app->url(array(
A	102	'action' => 'get',
	103	'mbox' => $this->storage->get_folder(),
	104	'uid' => $uid))
d311d8	105	);
8fa58e	106
80152b	107	if (!empty($this->headers->structure)) {
A	108	$this->get_mime_numbers($this->headers->structure);
	109	$this->parse_structure($this->headers->structure);
aa16b4	110	}
d311d8	111	else {
c321a9	112	$this->body = $this->storage->get_body($uid);
d311d8	113	}
A	114
	115	// notify plugins and let them analyze this structured message object
	116	$this->app->plugins->exec_hook('message_load', array('object' => $this));
	117	}
2ae58f	118
A	119
d311d8	120	/**
A	121	* Return a (decoded) message header
	122	*
5c461b	123	* @param string $name Header name
A	124	* @param bool $row Don't mime-decode the value
d311d8	125	* @return string Header value
A	126	*/
	127	public function get_header($name, $raw = false)
	128	{
4fdaa0	129	if (empty($this->headers)) {
1c4f23	130	return null;
4fdaa0	131	}
1c4f23	132
4fdaa0	133	return $this->headers->get($name, !$raw);
d311d8	134	}
A	135
2ae58f	136
d311d8	137	/**
A	138	* Set is_safe var and session data
	139	*
5c461b	140	* @param bool $safe enable/disable
d311d8	141	*/
A	142	public function set_safe($safe = true)
	143	{
f11142	144	$_SESSION['safe_messages'][$this->folder.':'.$this->uid] = $this->is_safe = $safe;
d311d8	145	}
A	146
	147
	148	/**
	149	* Compose a valid URL for getting a message part
	150	*
5c461b	151	* @param string $mime_id Part MIME-ID
a021d6	152	* @param mixed $embed Mimetype class for parts to be embedded
d311d8	153	* @return string URL or false if part does not exist
A	154	*/
57486f	155	public function get_part_url($mime_id, $embed = false)
d311d8	156	{
A	157	if ($this->mime_parts[$mime_id])
a021d6	158	return $this->opt['get_url'] . '&_part=' . $mime_id . ($embed ? '&_embed=1&_mimeclass=' . $embed : '');
aa16b4	159	else
d311d8	160	return false;
8fa58e	161	}
T	162
d311d8	163
A	164	/**
	165	* Get content of a specific part of this message
	166	*
71950d	167	* @param string $mime_id Part MIME-ID
A	168	* @param resource $fp File pointer to save the message part
	169	* @param boolean $skip_charset_conv Disables charset conversion
dff2c7	170	* @param int $max_bytes Only read this number of bytes
71950d	171	*
d311d8	172	* @return string Part content
A	173	*/
dff2c7	174	public function get_part_content($mime_id, $fp = null, $skip_charset_conv = false, $max_bytes = 0)
d311d8	175	{
A	176	if ($part = $this->mime_parts[$mime_id]) {
	177	// stored in message structure (winmail/inline-uuencode)
8b92d2	178	if (!empty($part->body) \|\| $part->encoding == 'stream') {
d311d8	179	if ($fp) {
A	180	fwrite($fp, $part->body);
	181	}
	182	return $fp ? true : $part->body;
	183	}
10562d	184
d311d8	185	// get from IMAP
10562d	186	$this->storage->set_folder($this->folder);
AM	187
dff2c7	188	return $this->storage->get_message_part($this->uid, $mime_id, $part, NULL, $fp, $skip_charset_conv, $max_bytes);
10562d	189	}
8fa58e	190	}
T	191
	192
d311d8	193	/**
5c26bd	194	* Determine if the message contains a HTML part. This must to be
AM	195	* a real part not an attachment (or its part)
	196	* This must to be
	197	* a real part not an attachment (or its part)
d311d8	198	*
5c26bd	199	* @param bool $enriched Enables checking for text/enriched parts too
33423a	200	*
d311d8	201	* @return bool True if a HTML is available, False if not
A	202	*/
5c26bd	203	function has_html_part($enriched = false)
d311d8	204	{
A	205	// check all message parts
574928	206	foreach ($this->mime_parts as $part) {
52d0d9	207	if ($part->mimetype == 'text/html' \|\| ($enriched && $part->mimetype == 'text/enriched')) {
0ef894	208	// Skip if part is an attachment, don't use is_attachment() here
AM	209	if ($part->filename) {
5c26bd	210	continue;
AM	211	}
33423a	212
5c26bd	213	$level = explode('.', $part->mime_id);
AM	214
	215	// Check if the part belongs to higher-level's alternative/related
	216	while (array_pop($level) !== null) {
	217	if (!count($level)) {
	218	return true;
33423a	219	}
A	220
5c26bd	221	$parent = $this->mime_parts[join('.', $level)];
AM	222	if ($parent->mimetype != 'multipart/alternative' && $parent->mimetype != 'multipart/related') {
	223	continue 2;
33423a	224	}
A	225	}
	226
5c26bd	227	if ($part->size) {
AM	228	return true;
	229	}
	230	}
	231	}
	232
	233	return false;
	234	}
	235
	236
	237	/**
	238	* Determine if the message contains a text/plain part. This must to be
	239	* a real part not an attachment (or its part)
	240	*
	241	* @return bool True if a plain text part is available, False if not
	242	*/
	243	function has_text_part()
	244	{
	245	// check all message parts
574928	246	foreach ($this->mime_parts as $part) {
5c26bd	247	if ($part->mimetype == 'text/plain') {
0ef894	248	// Skip if part is an attachment, don't use is_attachment() here
AM	249	if ($part->filename) {
5c26bd	250	continue;
AM	251	}
	252
	253	$level = explode('.', $part->mime_id);
	254
	255	// Check if the part belongs to higher-level's alternative/related
	256	while (array_pop($level) !== null) {
	257	if (!count($level)) {
	258	return true;
	259	}
	260
	261	$parent = $this->mime_parts[join('.', $level)];
	262	if ($parent->mimetype != 'multipart/alternative' && $parent->mimetype != 'multipart/related') {
	263	continue 2;
	264	}
	265	}
	266
	267	if ($part->size) {
	268	return true;
	269	}
33423a	270	}
d311d8	271	}
A	272
	273	return false;
	274	}
	275
	276
	277	/**
	278	* Return the first HTML part of this message
	279	*
	280	* @return string HTML message part content
	281	*/
	282	function first_html_part()
	283	{
	284	// check all message parts
33423a	285	foreach ($this->mime_parts as $pid => $part) {
A	286	if ($part->mimetype == 'text/html') {
	287	return $this->get_part_content($pid);
d311d8	288	}
A	289	}
	290	}
	291
	292
	293	/**
	294	* Return the first text part of this message
	295	*
868deb	296	* @param rcube_message_part $part Reference to the part if found
d311d8	297	* @return string Plain text message/part content
A	298	*/
868deb	299	function first_text_part(&$part=null)
d311d8	300	{
A	301	// no message structure, return complete body
	302	if (empty($this->parts))
	303	return $this->body;
	304
	305	// check all message parts
	306	foreach ($this->mime_parts as $mime_id => $part) {
33423a	307	if ($part->mimetype == 'text/plain') {
8b92d2	308	return $this->get_part_content($mime_id);
d311d8	309	}
33423a	310	else if ($part->mimetype == 'text/html') {
8b92d2	311	$out = $this->get_part_content($mime_id);
d311d8	312
A	313	// create instance of html2text class
66afd7	314	$txt = new rcube_html2text($out);
868deb	315	return $txt->get_text();
d311d8	316	}
A	317	}
	318
868deb	319	$part = null;
A	320	return null;
d311d8	321	}
A	322
	323
	324	/**
3efc74	325	* Checks if part of the message is an attachment (or part of it)
AM	326	*
	327	* @param rcube_message_part $part Message part
	328	*
	329	* @return bool True if the part is an attachment part
	330	*/
	331	public function is_attachment($part)
	332	{
	333	foreach ($this->attachments as $att_part) {
	334	if ($att_part->mime_id == $part->mime_id) {
	335	return true;
	336	}
	337
	338	// check if the part is a subpart of another attachment part (message/rfc822)
	339	if ($att_part->mimetype == 'message/rfc822') {
	340	if (in_array($part, (array)$att_part->parts)) {
	341	return true;
	342	}
	343	}
	344	}
	345
	346	return false;
	347	}
	348
	349
	350	/**
8b92d2	351	* Read the message structure returend by the IMAP server
d311d8	352	* and build flat lists of content parts and attachments
A	353	*
5c461b	354	* @param rcube_message_part $structure Message structure node
A	355	* @param bool $recursive True when called recursively
d311d8	356	*/
A	357	private function parse_structure($structure, $recursive = false)
	358	{
	359	// real content-type of message/rfc822 part
a8a72e	360	if ($structure->mimetype == 'message/rfc822' && $structure->real_mimetype) {
5ced9c	361	$mimetype = $structure->real_mimetype;
a8a72e	362
TB	363	// parse headers from message/rfc822 part
7ae7cd	364	if (!isset($structure->headers['subject']) && !isset($structure->headers['from'])) {
3725cf	365	list($headers, ) = explode("\r\n\r\n", $this->get_part_content($structure->mime_id, null, true, 32768));
a8a72e	366	$structure->headers = rcube_mime::parse_headers($headers);
TB	367	}
	368	}
5ced9c	369	else
A	370	$mimetype = $structure->mimetype;
d311d8	371
A	372	// show message headers
ddfdd8	373	if ($recursive && is_array($structure->headers) &&
TB	374	(isset($structure->headers['subject']) \|\| $structure->headers['from'] \|\| $structure->headers['to'])) {
d311d8	375	$c = new stdClass;
A	376	$c->type = 'headers';
c5d7c9	377	$c->headers = $structure->headers;
d311d8	378	$this->parts[] = $c;
A	379	}
5ced9c	380
A	381	// Allow plugins to handle message parts
	382	$plugin = $this->app->plugins->exec_hook('message_part_structure',
	383	array('object' => $this, 'structure' => $structure,
	384	'mimetype' => $mimetype, 'recursive' => $recursive));
	385
	386	if ($plugin['abort'])
	387	return;
	388
	389	$structure = $plugin['structure'];
	390	list($message_ctype_primary, $message_ctype_secondary) = explode('/', $plugin['mimetype']);
d311d8	391
A	392	// print body if message doesn't have multiple parts
	393	if ($message_ctype_primary == 'text' && !$recursive) {
c23dc8	394	// parts with unsupported type add to attachments list
AM	395	if (!in_array($message_ctype_secondary, array('plain', 'html', 'enriched'))) {
	396	$this->attachments[] = $structure;
	397	return;
	398	}
	399
d311d8	400	$structure->type = 'content';
c5d7c9	401	$this->parts[] = $structure;
8757f5	402
d311d8	403	// Parse simple (plain text) message body
c23dc8	404	if ($message_ctype_secondary == 'plain') {
d311d8	405	foreach ((array)$this->uu_decode($structure) as $uupart) {
A	406	$this->mime_parts[$uupart->mime_id] = $uupart;
	407	$this->attachments[] = $uupart;
	408	}
c23dc8	409	}
d311d8	410	}
A	411	// the same for pgp signed messages
	412	else if ($mimetype == 'application/pgp' && !$recursive) {
	413	$structure->type = 'content';
c5d7c9	414	$this->parts[] = $structure;
d311d8	415	}
e730cd	416	// message contains (more than one!) alternative parts
A	417	else if ($mimetype == 'multipart/alternative'
	418	&& is_array($structure->parts) && count($structure->parts) > 1
	419	) {
c5d7c9	420	$plain_part = null;
AM	421	$html_part = null;
	422	$print_part = null;
	423	$related_part = null;
	424	$attach_part = null;
d311d8	425
c5d7c9	426	// get html/plaintext parts, other add to attachments list
d311d8	427	foreach ($structure->parts as $p => $sub_part) {
A	428	$sub_mimetype = $sub_part->mimetype;
cb0f03	429	$is_multipart = preg_match('/^multipart\/(related\|relative\|mixed\|alternative)/', $sub_mimetype);
8757f5	430
5fbfde	431	// skip empty text parts
c5d7c9	432	if (!$sub_part->size && !$is_multipart) {
5f4095	433	continue;
5fbfde	434	}
5f4095	435
d311d8	436	// check if sub part is
c5d7c9	437	if ($is_multipart)
AM	438	$related_part = $p;
	439	else if ($sub_mimetype == 'text/plain')
d311d8	440	$plain_part = $p;
A	441	else if ($sub_mimetype == 'text/html')
	442	$html_part = $p;
	443	else if ($sub_mimetype == 'text/enriched')
	444	$enriched_part = $p;
c5d7c9	445	else
AM	446	$attach_part = $p;
d311d8	447	}
A	448
	449	// parse related part (alternative part could be in here)
	450	if ($related_part !== null && !$this->parse_alternative) {
	451	$this->parse_alternative = true;
	452	$this->parse_structure($structure->parts[$related_part], true);
	453	$this->parse_alternative = false;
8757f5	454
d311d8	455	// if plain part was found, we should unset it if html is preferred
A	456	if ($this->opt['prefer_html'] && count($this->parts))
	457	$plain_part = null;
	458	}
	459
	460	// choose html/plain part to print
	461	if ($html_part !== null && $this->opt['prefer_html']) {
c5d7c9	462	$print_part = $structure->parts[$html_part];
d311d8	463	}
A	464	else if ($enriched_part !== null) {
c5d7c9	465	$print_part = $structure->parts[$enriched_part];
d311d8	466	}
A	467	else if ($plain_part !== null) {
c5d7c9	468	$print_part = $structure->parts[$plain_part];
d311d8	469	}
A	470
	471	// add the right message body
	472	if (is_object($print_part)) {
	473	$print_part->type = 'content';
	474	$this->parts[] = $print_part;
	475	}
	476	// show plaintext warning
	477	else if ($html_part !== null && empty($this->parts)) {
	478	$c = new stdClass;
	479	$c->type = 'content';
	480	$c->ctype_primary = 'text';
	481	$c->ctype_secondary = 'plain';
0c2596	482	$c->mimetype = 'text/plain';
A	483	$c->realtype = 'text/html';
d311d8	484
A	485	$this->parts[] = $c;
	486	}
	487
c5d7c9	488	// add unsupported/unrecognized parts to attachments list
AM	489	if ($attach_part) {
	490	$this->attachments[] = $structure->parts[$attach_part];
d311d8	491	}
A	492	}
	493	// this is an ecrypted message -> create a plaintext body with the according message
	494	else if ($mimetype == 'multipart/encrypted') {
	495	$p = new stdClass;
	496	$p->type = 'content';
	497	$p->ctype_primary = 'text';
	498	$p->ctype_secondary = 'plain';
0c2596	499	$p->mimetype = 'text/plain';
A	500	$p->realtype = 'multipart/encrypted';
c054ec	501
A	502	$this->parts[] = $p;
d311d8	503	}
ee89c6	504	// this is an S/MIME ecrypted message -> create a plaintext body with the according message
AM	505	else if ($mimetype == 'application/pkcs7-mime') {
	506	$p = new stdClass;
	507	$p->type = 'content';
	508	$p->ctype_primary = 'text';
	509	$p->ctype_secondary = 'plain';
	510	$p->mimetype = 'text/plain';
	511	$p->realtype = 'application/pkcs7-mime';
	512
	513	$this->parts[] = $p;
	514	}
d311d8	515	// message contains multiple parts
A	516	else if (is_array($structure->parts) && !empty($structure->parts)) {
	517	// iterate over parts
	518	for ($i=0; $i < count($structure->parts); $i++) {
	519	$mail_part = &$structure->parts[$i];
	520	$primary_type = $mail_part->ctype_primary;
	521	$secondary_type = $mail_part->ctype_secondary;
8fa58e	522
d311d8	523	// real content-type of message/rfc822
A	524	if ($mail_part->real_mimetype) {
	525	$part_orig_mimetype = $mail_part->mimetype;
	526	$part_mimetype = $mail_part->real_mimetype;
	527	list($primary_type, $secondary_type) = explode('/', $part_mimetype);
	528	}
	529	else
	530	$part_mimetype = $mail_part->mimetype;
6b6f2e	531
d311d8	532	// multipart/alternative
A	533	if ($primary_type == 'multipart') {
	534	$this->parse_structure($mail_part, true);
	535
	536	// list message/rfc822 as attachment as well (mostly .eml)
	537	if ($part_orig_mimetype == 'message/rfc822' && !empty($mail_part->filename))
	538	$this->attachments[] = $mail_part;
	539	}
f22ea7	540	// part text/[plain\|html] or delivery status
d311d8	541	else if ((($part_mimetype == 'text/plain' \|\| $part_mimetype == 'text/html') && $mail_part->disposition != 'attachment') \|\|
f22ea7	542	in_array($part_mimetype, array('message/delivery-status', 'text/rfc822-headers', 'message/disposition-notification'))
d311d8	543	) {
1a2f83	544	// Allow plugins to handle also this part
A	545	$plugin = $this->app->plugins->exec_hook('message_part_structure',
	546	array('object' => $this, 'structure' => $mail_part,
	547	'mimetype' => $part_mimetype, 'recursive' => true));
	548
	549	if ($plugin['abort'])
	550	continue;
	551
9c299e	552	if ($part_mimetype == 'text/html' && $mail_part->size) {
63f9de	553	$got_html_part = true;
A	554	}
	555
1a2f83	556	$mail_part = $plugin['structure'];
A	557	list($primary_type, $secondary_type) = explode('/', $plugin['mimetype']);
	558
d311d8	559	// add text part if it matches the prefs
A	560	if (!$this->parse_alternative \|\|
	561	($secondary_type == 'html' && $this->opt['prefer_html']) \|\|
	562	($secondary_type == 'plain' && !$this->opt['prefer_html'])
	563	) {
	564	$mail_part->type = 'content';
	565	$this->parts[] = $mail_part;
	566	}
fd371a	567
d311d8	568	// list as attachment as well
f7c11e	569	if (!empty($mail_part->filename)) {
AM	570	$this->attachments[] = $mail_part;
	571	}
d311d8	572	}
A	573	// part message/*
8757f5	574	else if ($primary_type == 'message') {
d311d8	575	$this->parse_structure($mail_part, true);
A	576
	577	// list as attachment as well (mostly .eml)
	578	if (!empty($mail_part->filename))
	579	$this->attachments[] = $mail_part;
	580	}
	581	// ignore "virtual" protocol parts
	582	else if ($primary_type == 'protocol') {
	583	continue;
	584	}
	585	// part is Microsoft Outlook TNEF (winmail.dat)
	586	else if ($part_mimetype == 'application/ms-tnef') {
	587	foreach ((array)$this->tnef_decode($mail_part) as $tpart) {
	588	$this->mime_parts[$tpart->mime_id] = $tpart;
	589	$this->attachments[] = $tpart;
	590	}
	591	}
	592	// part is a file/attachment
	593	else if (preg_match('/^(inline\|attach)/', $mail_part->disposition) \|\|
8794f1	594	$mail_part->headers['content-id'] \|\|
A	595	($mail_part->filename &&
	596	(empty($mail_part->disposition) \|\| preg_match('/^[a-z0-9!#$&.+^_-]+$/i', $mail_part->disposition)))
d311d8	597	) {
A	598	// skip apple resource forks
	599	if ($message_ctype_secondary == 'appledouble' && $secondary_type == 'applefile')
	600	continue;
	601
	602	// part belongs to a related message and is linked
cb0f03	603	if (preg_match('/^multipart\/(related\|relative)/', $mimetype)
d311d8	604	&& ($mail_part->headers['content-id'] \|\| $mail_part->headers['content-location'])) {
A	605	if ($mail_part->headers['content-id'])
	606	$mail_part->content_id = preg_replace(array('/^</', '/>$/'), '', $mail_part->headers['content-id']);
	607	if ($mail_part->headers['content-location'])
	608	$mail_part->content_location = $mail_part->headers['content-base'] . $mail_part->headers['content-location'];
	609
	610	$this->inline_parts[] = $mail_part;
	611	}
	612	// attachment encapsulated within message/rfc822 part needs further decoding (#1486743)
	613	else if ($part_orig_mimetype == 'message/rfc822') {
	614	$this->parse_structure($mail_part, true);
fd371a	615
A	616	// list as attachment as well (mostly .eml)
	617	if (!empty($mail_part->filename))
	618	$this->attachments[] = $mail_part;
d311d8	619	}
b38925	620	// regular attachment with valid content type
A	621	// (content-type name regexp according to RFC4288.4.2)
2ae58f	622	else if (preg_match('/^[a-z0-9!#$&.+^_-]+\/[a-z0-9!#$&.+^_-]+$/i', $part_mimetype)) {
b38925	623	$this->attachments[] = $mail_part;
A	624	}
	625	// attachment with invalid content type
	626	// replace malformed content type with application/octet-stream (#1487767)
	627	else if ($mail_part->filename) {
	628	$mail_part->ctype_primary = 'application';
	629	$mail_part->ctype_secondary = 'octet-stream';
	630	$mail_part->mimetype = 'application/octet-stream';
	631
d311d8	632	$this->attachments[] = $mail_part;
A	633	}
	634	}
8757f5	635	// attachment part as message/rfc822 (#1488026)
A	636	else if ($mail_part->mimetype == 'message/rfc822') {
	637	$this->parse_structure($mail_part);
	638	}
d311d8	639	}
A	640
	641	// if this was a related part try to resolve references
cb0f03	642	if (preg_match('/^multipart\/(related\|relative)/', $mimetype) && sizeof($this->inline_parts)) {
d311d8	643	$a_replaces = array();
89d19c	644	$img_regexp = '/^image\/(gif\|jpe?g\|png\|tiff\|bmp\|svg)/';
d311d8	645
A	646	foreach ($this->inline_parts as $inline_object) {
a021d6	647	$part_url = $this->get_part_url($inline_object->mime_id, $inline_object->ctype_primary);
8cfba1	648	if (isset($inline_object->content_id))
d311d8	649	$a_replaces['cid:'.$inline_object->content_id] = $part_url;
63f9de	650	if ($inline_object->content_location) {
d311d8	651	$a_replaces[$inline_object->content_location] = $part_url;
63f9de	652	}
89d19c	653
A	654	if (!empty($inline_object->filename)) {
	655	// MS Outlook sends sometimes non-related attachments as related
	656	// In this case multipart/related message has only one text part
	657	// We'll add all such attachments to the attachments list
	658	if (!isset($got_html_part) && empty($inline_object->content_id)) {
	659	$this->attachments[] = $inline_object;
	660	}
	661	// MS Outlook sometimes also adds non-image attachments as related
	662	// We'll add all such attachments to the attachments list
	663	// Warning: some browsers support pdf in <img/>
	664	else if (!preg_match($img_regexp, $inline_object->mimetype)) {
	665	$this->attachments[] = $inline_object;
	666	}
	667	// @TODO: we should fetch HTML body and find attachment's content-id
	668	// to handle also image attachments without reference in the body
	669	// @TODO: should we list all image attachments in text mode?
02b6e6	670	}
d311d8	671	}
A	672
	673	// add replace array to each content part
	674	// (will be applied later when part body is available)
	675	foreach ($this->parts as $i => $part) {
	676	if ($part->type == 'content')
	677	$this->parts[$i]->replaces = $a_replaces;
	678	}
	679	}
	680	}
	681	// message is a single part non-text
	682	else if ($structure->filename) {
	683	$this->attachments[] = $structure;
	684	}
3e58bf	685	// message is a single part non-text (without filename)
A	686	else if (preg_match('/application\//i', $mimetype)) {
	687	$this->attachments[] = $structure;
c5d7c9	688	}
AM	689	}
	690
	691
	692	/**
d311d8	693	* Fill aflat array with references to all parts, indexed by part numbers
A	694	*
5c461b	695	* @param rcube_message_part $part Message body structure
d311d8	696	*/
A	697	private function get_mime_numbers(&$part)
	698	{
	699	if (strlen($part->mime_id))
	700	$this->mime_parts[$part->mime_id] = &$part;
f19d86	701
d311d8	702	if (is_array($part->parts))
A	703	for ($i=0; $i<count($part->parts); $i++)
	704	$this->get_mime_numbers($part->parts[$i]);
	705	}
	706
	707
	708	/**
	709	* Decode a Microsoft Outlook TNEF part (winmail.dat)
	710	*
5c461b	711	* @param rcube_message_part $part Message part to decode
A	712	* @return array
d311d8	713	*/
A	714	function tnef_decode(&$part)
	715	{
	716	// @TODO: attachment may be huge, hadle it via file
10562d	717	if (!isset($part->body)) {
AM	718	$this->storage->set_folder($this->folder);
c321a9	719	$part->body = $this->storage->get_message_part($this->uid, $part->mime_id, $part);
10562d	720	}
d311d8	721
A	722	$parts = array();
f19d86	723	$tnef = new tnef_decoder;
A	724	$tnef_arr = $tnef->decompress($part->body);
d311d8	725
A	726	foreach ($tnef_arr as $pid => $winatt) {
	727	$tpart = new rcube_message_part;
	728
	729	$tpart->filename = trim($winatt['name']);
	730	$tpart->encoding = 'stream';
f19d86	731	$tpart->ctype_primary = trim(strtolower($winatt['type']));
A	732	$tpart->ctype_secondary = trim(strtolower($winatt['subtype']));
d311d8	733	$tpart->mimetype = $tpart->ctype_primary . '/' . $tpart->ctype_secondary;
A	734	$tpart->mime_id = 'winmail.' . $part->mime_id . '.' . $pid;
	735	$tpart->size = $winatt['size'];
	736	$tpart->body = $winatt['stream'];
	737
	738	$parts[] = $tpart;
	739	unset($tnef_arr[$pid]);
	740	}
f19d86	741
d311d8	742	return $parts;
A	743	}
	744
	745
	746	/**
	747	* Parse message body for UUencoded attachments bodies
	748	*
5c461b	749	* @param rcube_message_part $part Message part to decode
A	750	* @return array
d311d8	751	*/
A	752	function uu_decode(&$part)
	753	{
	754	// @TODO: messages may be huge, hadle body via file
10562d	755	if (!isset($part->body)) {
AM	756	$this->storage->set_folder($this->folder);
c321a9	757	$part->body = $this->storage->get_message_part($this->uid, $part->mime_id, $part);
10562d	758	}
d311d8	759
A	760	$parts = array();
	761	// FIXME: line length is max.65?
14f22f	762	$uu_regexp = '/begin [0-7]{3,4} ([^\n]+)\n/s';
d311d8	763
A	764	if (preg_match_all($uu_regexp, $part->body, $matches, PREG_SET_ORDER)) {
	765	// update message content-type
	766	$part->ctype_primary = 'multipart';
	767	$part->ctype_secondary = 'mixed';
	768	$part->mimetype = $part->ctype_primary . '/' . $part->ctype_secondary;
14f22f	769	$uu_endstring = "`\nend\n";
d311d8	770
A	771	// add attachments to the structure
	772	foreach ($matches as $pid => $att) {
14f22f	773	$startpos = strpos($part->body, $att[1]) + strlen($att[1]) + 1; // "\n"
GB	774	$endpos = strpos($part->body, $uu_endstring);
	775	$filebody = substr($part->body, $startpos, $endpos-$startpos);
	776
	777	// remove attachments bodies from the message body
	778	$part->body = substr_replace($part->body, "", $startpos, $endpos+strlen($uu_endstring)-$startpos);
	779
d311d8	780	$uupart = new rcube_message_part;
A	781
	782	$uupart->filename = trim($att[1]);
	783	$uupart->encoding = 'stream';
14f22f	784	$uupart->body = convert_uudecode($filebody);
d311d8	785	$uupart->size = strlen($uupart->body);
A	786	$uupart->mime_id = 'uu.' . $part->mime_id . '.' . $pid;
	787
0c2596	788	$ctype = rcube_mime::content_type($uupart->body, $uupart->filename, 'application/octet-stream', true);
d311d8	789	$uupart->mimetype = $ctype;
A	790	list($uupart->ctype_primary, $uupart->ctype_secondary) = explode('/', $ctype);
	791
	792	$parts[] = $uupart;
	793	unset($matches[$pid]);
	794	}
14f22f	795
GB	796	// remove attachments bodies from the message body
	797	$part->body = preg_replace($uu_regexp, '', $part->body);
d311d8	798	}
f19d86	799
d311d8	800	return $parts;
A	801	}
b91f04	802
T	803
	804	/**
	805	* Deprecated methods (to be removed)
	806	*/
	807
	808	public static function unfold_flowed($text)
	809	{
	810	return rcube_mime::unfold_flowed($text);
	811	}
	812
	813	public static function format_flowed($text, $length = 72)
	814	{
	815	return rcube_mime::format_flowed($text, $length);
	816	}
	817
8fa58e	818	}