githubFork/roundcubemail.git

Bring back some previously removed lines

thomascube

2010-06-08 af3cf8a0a7de74ab169f44277eda73f5f9e18cd7

commit \| author \| age
59c216	1	<?php
A	2
	3	/*
	4	+-----------------------------------------------------------------------+
	5	\| program/include/rcube_imap_generic.php \|
	6	\| \|
	7	\| This file is part of the RoundCube Webmail client \|
	8	\| Copyright (C) 2005-2010, RoundCube Dev. - Switzerland \|
	9	\| Licensed under the GNU GPL \|
	10	\| \|
	11	\| PURPOSE: \|
	12	\| Provide alternative IMAP library that doesn't rely on the standard \|
	13	\| C-Client based version. This allows to function regardless \|
	14	\| of whether or not the PHP build it's running on has IMAP \|
	15	\| functionality built-in. \|
	16	\| \|
	17	\| Based on Iloha IMAP Library. See http://ilohamail.org/ for details \|
	18	\| \|
	19	+-----------------------------------------------------------------------+
	20	\| Author: Aleksander Machniak <alec@alec.pl> \|
	21	\| Author: Ryo Chijiiwa <Ryo@IlohaMail.org> \|
	22	+-----------------------------------------------------------------------+
	23
	24	$Id$
	25
	26	*/
	27
	28
d062db	29	/**
T	30	* Struct representing an e-mail message header
	31	*
	32	* @package Mail
1d5165	33	* @author Aleksander Machniak <alec@alec.pl>
d062db	34	*/
59c216	35	class rcube_mail_header
A	36	{
	37	public $id;
	38	public $uid;
	39	public $subject;
	40	public $from;
	41	public $to;
	42	public $cc;
	43	public $replyto;
	44	public $in_reply_to;
	45	public $date;
	46	public $messageID;
	47	public $size;
	48	public $encoding;
	49	public $charset;
	50	public $ctype;
	51	public $flags;
	52	public $timestamp;
	53	public $f;
	54	public $body_structure;
	55	public $internaldate;
	56	public $references;
	57	public $priority;
	58	public $mdn_to;
	59	public $mdn_sent = false;
	60	public $is_draft = false;
	61	public $seen = false;
	62	public $deleted = false;
	63	public $recent = false;
	64	public $answered = false;
	65	public $forwarded = false;
	66	public $junk = false;
	67	public $flagged = false;
	68	public $has_children = false;
	69	public $depth = 0;
	70	public $unread_children = 0;
	71	public $others = array();
	72	}
	73
182093	74	// For backward compatibility with cached messages (#1486602)
A	75	class iilBasicHeader extends rcube_mail_header
	76	{
	77	}
59c216	78
d062db	79	/**
T	80	* PHP based wrapper class to connect to an IMAP server
	81	*
	82	* @package Mail
1d5165	83	* @author Aleksander Machniak <alec@alec.pl>
d062db	84	*/
59c216	85	class rcube_imap_generic
A	86	{
	87	public $error;
	88	public $errornum;
	89	public $message;
	90	public $rootdir;
	91	public $delimiter;
	92	public $permanentflags = array();
	93	public $flags = array(
	94	'SEEN' => '\\Seen',
	95	'DELETED' => '\\Deleted',
	96	'RECENT' => '\\Recent',
	97	'ANSWERED' => '\\Answered',
	98	'DRAFT' => '\\Draft',
	99	'FLAGGED' => '\\Flagged',
	100	'FORWARDED' => '$Forwarded',
	101	'MDNSENT' => '$MDNSent',
	102	'' => '\\',
	103	);
	104
	105	private $exists;
	106	private $recent;
	107	private $selected;
	108	private $fp;
	109	private $host;
	110	private $logged = false;
	111	private $capability = array();
	112	private $capability_readed = false;
	113	private $prefs;
	114
	115	/**
	116	* Object constructor
	117	*/
	118	function __construct()
	119	{
	120	}
1d5165	121
59c216	122	private function putLine($string, $endln=true)
A	123	{
	124	if (!$this->fp)
	125	return false;
	126
	127	if (!empty($this->prefs['debug_mode'])) {
	128	write_log('imap', 'C: '. rtrim($string));
	129	}
1d5165	130
59c216	131	return fputs($this->fp, $string . ($endln ? "\r\n" : ''));
A	132	}
	133
	134	// $this->putLine replacement with Command Continuation Requests (RFC3501 7.5) support
	135	private function putLineC($string, $endln=true)
	136	{
	137	if (!$this->fp)
	138	return NULL;
	139
	140	if ($endln)
	141	$string .= "\r\n";
	142
	143	$res = 0;
	144	if ($parts = preg_split('/(\{[0-9]+\}\r\n)/m', $string, -1, PREG_SPLIT_DELIM_CAPTURE)) {
	145	for ($i=0, $cnt=count($parts); $i<$cnt; $i++) {
	146	if (preg_match('/^\{[0-9]+\}\r\n$/', $parts[$i+1])) {
	147	$bytes = $this->putLine($parts[$i].$parts[$i+1], false);
	148	if ($bytes === false)
	149	return false;
	150	$res += $bytes;
	151	$line = $this->readLine(1000);
	152	// handle error in command
	153	if ($line[0] != '+')
	154	return false;
	155	$i++;
	156	}
	157	else {
	158	$bytes = $this->putLine($parts[$i], false);
	159	if ($bytes === false)
	160	return false;
	161	$res += $bytes;
	162	}
	163	}
	164	}
	165
	166	return $res;
	167	}
	168
	169	private function readLine($size=1024)
	170	{
	171	$line = '';
	172
	173	if (!$this->fp) {
	174	return NULL;
	175	}
1d5165	176
59c216	177	if (!$size) {
A	178	$size = 1024;
	179	}
1d5165	180
59c216	181	do {
A	182	if (feof($this->fp)) {
	183	return $line ? $line : NULL;
	184	}
1d5165	185
59c216	186	$buffer = fgets($this->fp, $size);
A	187
	188	if ($buffer === false) {
3978cb	189	@fclose($this->fp);
A	190	$this->fp = null;
59c216	191	break;
A	192	}
	193	if (!empty($this->prefs['debug_mode'])) {
	194	write_log('imap', 'S: '. chop($buffer));
	195	}
	196	$line .= $buffer;
	197	} while ($buffer[strlen($buffer)-1] != "\n");
	198
	199	return $line;
	200	}
	201
	202	private function multLine($line, $escape=false)
	203	{
	204	$line = chop($line);
	205	if (preg_match('/\{[0-9]+\}$/', $line)) {
	206	$out = '';
1d5165	207
59c216	208	preg_match_all('/(.*)\{([0-9]+)\}$/', $line, $a);
A	209	$bytes = $a[2][0];
	210	while (strlen($out) < $bytes) {
1d5165	211	$line = $this->readBytes($bytes);
59c216	212	if ($line === NULL)
A	213	break;
	214	$out .= $line;
	215	}
	216
	217	$line = $a[1][0] . '"' . ($escape ? $this->Escape($out) : $out) . '"';
	218	}
1d5165	219
59c216	220	return $line;
A	221	}
	222
	223	private function readBytes($bytes)
	224	{
	225	$data = '';
	226	$len = 0;
	227	while ($len < $bytes && !feof($this->fp))
	228	{
	229	$d = fread($this->fp, $bytes-$len);
	230	if (!empty($this->prefs['debug_mode'])) {
	231	write_log('imap', 'S: '. $d);
	232	}
	233	$data .= $d;
	234	$data_len = strlen($data);
	235	if ($len == $data_len) {
	236	break; // nothing was read -> exit to avoid apache lockups
	237	}
	238	$len = $data_len;
	239	}
1d5165	240
59c216	241	return $data;
A	242	}
	243
	244	// don't use it in loops, until you exactly know what you're doing
6a86d2	245	private function readReply(&$untagged=null)
59c216	246	{
A	247	do {
	248	$line = trim($this->readLine(1024));
1d5165	249	// store untagged response lines
A	250	if ($line[0] == '*')
	251	$untagged[] = $line;
59c216	252	} while ($line[0] == '*');
1d5165	253
A	254	if ($untagged)
	255	$untagged = join("\n", $untagged);
59c216	256
A	257	return $line;
	258	}
	259
	260	private function parseResult($string)
	261	{
	262	$a = explode(' ', trim($string));
	263	if (count($a) >= 2) {
	264	$res = strtoupper($a[1]);
	265	if ($res == 'OK') {
	266	return 0;
	267	} else if ($res == 'NO') {
	268	return -1;
	269	} else if ($res == 'BAD') {
	270	return -2;
	271	} else if ($res == 'BYE') {
3978cb	272	@fclose($this->fp);
59c216	273	$this->fp = null;
A	274	return -3;
	275	}
	276	}
	277	return -4;
	278	}
	279
	280	// check if $string starts with $match (or * BYE/BAD)
	281	private function startsWith($string, $match, $error=false, $nonempty=false)
	282	{
	283	$len = strlen($match);
	284	if ($len == 0) {
	285	return false;
	286	}
	287	if (!$this->fp) {
	288	return true;
	289	}
	290	if (strncmp($string, $match, $len) == 0) {
	291	return true;
	292	}
	293	if ($error && preg_match('/^\* (BYE\|BAD) /i', $string, $m)) {
	294	if (strtoupper($m[1]) == 'BYE') {
3978cb	295	@fclose($this->fp);
59c216	296	$this->fp = null;
A	297	}
	298	return true;
	299	}
	300	if ($nonempty && !strlen($string)) {
	301	return true;
	302	}
	303	return false;
	304	}
	305
	306	private function startsWithI($string, $match, $error=false, $nonempty=false)
	307	{
	308	$len = strlen($match);
	309	if ($len == 0) {
	310	return false;
	311	}
	312	if (!$this->fp) {
	313	return true;
	314	}
	315	if (strncasecmp($string, $match, $len) == 0) {
	316	return true;
	317	}
	318	if ($error && preg_match('/^\* (BYE\|BAD) /i', $string, $m)) {
	319	if (strtoupper($m[1]) == 'BYE') {
3978cb	320	@fclose($this->fp);
59c216	321	$this->fp = null;
A	322	}
	323	return true;
	324	}
	325	if ($nonempty && !strlen($string)) {
	326	return true;
	327	}
	328	return false;
	329	}
	330
	331	function getCapability($name)
	332	{
	333	if (in_array($name, $this->capability)) {
	334	return true;
	335	}
	336	else if ($this->capability_readed) {
	337	return false;
	338	}
	339
1d5165	340	// get capabilities (only once) because initial
59c216	341	// optional CAPABILITY response may differ
A	342	$this->capability = array();
	343
	344	if (!$this->putLine("cp01 CAPABILITY")) {
	345	return false;
	346	}
	347	do {
	348	$line = trim($this->readLine(1024));
	349	$a = explode(' ', $line);
	350	if ($line[0] == '*') {
	351	while (list($k, $w) = each($a)) {
	352	if ($w != '*' && $w != 'CAPABILITY')
	353	$this->capability[] = strtoupper($w);
	354	}
	355	}
	356	} while ($a[0] != 'cp01');
1d5165	357
59c216	358	$this->capability_readed = true;
A	359
	360	if (in_array($name, $this->capability)) {
	361	return true;
	362	}
	363
	364	return false;
	365	}
	366
	367	function clearCapability()
	368	{
	369	$this->capability = array();
	370	$this->capability_readed = false;
	371	}
	372
	373	function authenticate($user, $pass, $encChallenge)
	374	{
	375	$ipad = '';
	376	$opad = '';
1d5165	377
59c216	378	// initialize ipad, opad
A	379	for ($i=0; $i<64; $i++) {
	380	$ipad .= chr(0x36);
	381	$opad .= chr(0x5C);
	382	}
	383
	384	// pad $pass so it's 64 bytes
	385	$padLen = 64 - strlen($pass);
	386	for ($i=0; $i<$padLen; $i++) {
	387	$pass .= chr(0);
	388	}
1d5165	389
59c216	390	// generate hash
6f31b3	391	$hash = md5($this->_xor($pass,$opad) . pack("H*", md5($this->_xor($pass, $ipad) . base64_decode($encChallenge))));
1d5165	392
59c216	393	// generate reply
A	394	$reply = base64_encode($user . ' ' . $hash);
1d5165	395
59c216	396	// send result, get reply
A	397	$this->putLine($reply);
	398	$line = $this->readLine(1024);
1d5165	399
59c216	400	// process result
A	401	$result = $this->parseResult($line);
	402	if ($result == 0) {
63bff1	403	$this->errornum = 0;
59c216	404	return $this->fp;
A	405	}
	406
63bff1	407	$this->error = "Authentication for $user failed (AUTH): $line";
A	408	$this->errornum = $result;
59c216	409
A	410	return $result;
	411	}
	412
	413	function login($user, $password)
	414	{
	415	$this->putLine('a001 LOGIN "'.$this->escape($user).'" "'.$this->escape($password).'"');
	416
1d5165	417	$line = $this->readReply($untagged);
A	418
	419	// re-set capabilities list if untagged CAPABILITY response provided
	420	if (preg_match('/\* CAPABILITY (.+)/i', $untagged, $matches)) {
	421	$this->capability = explode(' ', strtoupper($matches[1]));
	422	}
59c216	423
A	424	// process result
	425	$result = $this->parseResult($line);
	426
	427	if ($result == 0) {
63bff1	428	$this->errornum = 0;
59c216	429	return $this->fp;
A	430	}
	431
3978cb	432	@fclose($this->fp);
59c216	433	$this->fp = false;
1d5165	434
63bff1	435	$this->error = "Authentication for $user failed (LOGIN): $line";
A	436	$this->errornum = $result;
59c216	437
A	438	return $result;
	439	}
	440
c85424	441	function getNamespace()
59c216	442	{
A	443	if (isset($this->prefs['rootdir']) && is_string($this->prefs['rootdir'])) {
	444	$this->rootdir = $this->prefs['rootdir'];
	445	return true;
	446	}
1d5165	447
59c216	448	if (!$this->getCapability('NAMESPACE')) {
A	449	return false;
	450	}
1d5165	451
59c216	452	if (!$this->putLine("ns1 NAMESPACE")) {
A	453	return false;
	454	}
	455	do {
	456	$line = $this->readLine(1024);
	457	if ($this->startsWith($line, '* NAMESPACE')) {
	458	$i = 0;
	459	$line = $this->unEscape($line);
	460	$data = $this->parseNamespace(substr($line,11), $i, 0, 0);
	461	}
	462	} while (!$this->startsWith($line, 'ns1', true, true));
	463
	464	if (!is_array($data)) {
	465	return false;
	466	}
	467
	468	$user_space_data = $data[0];
	469	if (!is_array($user_space_data)) {
	470	return false;
	471	}
	472
	473	$first_userspace = $user_space_data[0];
	474	if (count($first_userspace)!=2) {
	475	return false;
	476	}
1d5165	477
59c216	478	$this->rootdir = $first_userspace[0];
A	479	$this->delimiter = $first_userspace[1];
	480	$this->prefs['rootdir'] = substr($this->rootdir, 0, -1);
	481	$this->prefs['delimiter'] = $this->delimiter;
1d5165	482
59c216	483	return true;
A	484	}
	485
	486
	487	/**
	488	* Gets the delimiter, for example:
	489	* INBOX.foo -> .
	490	* INBOX/foo -> /
	491	* INBOX\foo -> \
1d5165	492	*
A	493	* @return mixed A delimiter (string), or false.
59c216	494	* @see connect()
A	495	*/
	496	function getHierarchyDelimiter()
	497	{
	498	if ($this->delimiter) {
	499	return $this->delimiter;
	500	}
	501	if (!empty($this->prefs['delimiter'])) {
	502	return ($this->delimiter = $this->prefs['delimiter']);
	503	}
	504
	505	$delimiter = false;
	506
	507	// try (LIST "" ""), should return delimiter (RFC2060 Sec 6.3.8)
	508	if (!$this->putLine('ghd LIST "" ""')) {
	509	return false;
	510	}
1d5165	511
59c216	512	do {
A	513	$line = $this->readLine(500);
	514	if ($line[0] == '*') {
	515	$line = rtrim($line);
	516	$a = rcube_explode_quoted_string(' ', $this->unEscape($line));
	517	if ($a[0] == '*') {
	518	$delimiter = str_replace('"', '', $a[count($a)-2]);
	519	}
	520	}
	521	} while (!$this->startsWith($line, 'ghd', true, true));
	522
	523	if (strlen($delimiter)>0) {
	524	return $delimiter;
	525	}
	526
	527	// if that fails, try namespace extension
	528	// try to fetch namespace data
	529	if (!$this->putLine("ns1 NAMESPACE")) {
	530	return false;
	531	}
	532
	533	do {
	534	$line = $this->readLine(1024);
	535	if ($this->startsWith($line, '* NAMESPACE')) {
	536	$i = 0;
	537	$line = $this->unEscape($line);
	538	$data = $this->parseNamespace(substr($line,11), $i, 0, 0);
	539	}
	540	} while (!$this->startsWith($line, 'ns1', true, true));
	541
	542	if (!is_array($data)) {
	543	return false;
	544	}
1d5165	545
59c216	546	// extract user space data (opposed to global/shared space)
A	547	$user_space_data = $data[0];
	548	if (!is_array($user_space_data)) {
	549	return false;
	550	}
	551
	552	// get first element
	553	$first_userspace = $user_space_data[0];
	554	if (!is_array($first_userspace)) {
	555	return false;
	556	}
	557
	558	// extract delimiter
1d5165	559	$delimiter = $first_userspace[1];
59c216	560
A	561	return $delimiter;
	562	}
	563
	564	function connect($host, $user, $password, $options=null)
	565	{
	566	// set options
	567	if (is_array($options)) {
	568	$this->prefs = $options;
	569	}
	570	// set auth method
	571	if (!empty($this->prefs['auth_method'])) {
	572	$auth_method = strtoupper($this->prefs['auth_method']);
	573	} else {
	574	$auth_method = 'CHECK';
	575	}
	576
	577	$message = "INITIAL: $auth_method\n";
	578
	579	$result = false;
1d5165	580
59c216	581	// initialize connection
A	582	$this->error = '';
	583	$this->errornum = 0;
	584	$this->selected = '';
	585	$this->user = $user;
	586	$this->host = $host;
	587	$this->logged = false;
	588
	589	// check input
	590	if (empty($host)) {
	591	$this->error = "Empty host";
94a6c6	592	$this->errornum = -2;
59c216	593	return false;
A	594	}
	595	if (empty($user)) {
	596	$this->error = "Empty user";
	597	$this->errornum = -1;
	598	return false;
	599	}
	600	if (empty($password)) {
	601	$this->error = "Empty password";
	602	$this->errornum = -1;
	603	return false;
	604	}
	605
	606	if (!$this->prefs['port']) {
	607	$this->prefs['port'] = 143;
	608	}
	609	// check for SSL
	610	if ($this->prefs['ssl_mode'] && $this->prefs['ssl_mode'] != 'tls') {
	611	$host = $this->prefs['ssl_mode'] . '://' . $host;
	612	}
	613
f07d23	614	// Connect
A	615	if ($this->prefs['timeout'] > 0)
	616	$this->fp = @fsockopen($host, $this->prefs['port'], $errno, $errstr, $this->prefs['timeout']);
	617	else
	618	$this->fp = @fsockopen($host, $this->prefs['port'], $errno, $errstr);
	619
59c216	620	if (!$this->fp) {
A	621	$this->error = sprintf("Could not connect to %s:%d: %s", $host, $this->prefs['port'], $errstr);
	622	$this->errornum = -2;
	623	return false;
	624	}
	625
f07d23	626	if ($this->prefs['timeout'] > 0)
A	627	stream_set_timeout($this->fp, $this->prefs['timeout']);
	628
59c216	629	$line = trim(fgets($this->fp, 8192));
A	630
	631	if ($this->prefs['debug_mode'] && $line) {
	632	write_log('imap', 'S: '. $line);
	633	}
	634
	635	// Connected to wrong port or connection error?
	636	if (!preg_match('/^\* (OK\|PREAUTH)/i', $line)) {
	637	if ($line)
	638	$this->error = sprintf("Wrong startup greeting (%s:%d): %s", $host, $this->prefs['port'], $line);
	639	else
	640	$this->error = sprintf("Empty startup greeting (%s:%d)", $host, $this->prefs['port']);
	641	$this->errornum = -2;
	642	return false;
	643	}
	644
	645	// RFC3501 [7.1] optional CAPABILITY response
	646	if (preg_match('/\[CAPABILITY ([^]]+)\]/i', $line, $matches)) {
	647	$this->capability = explode(' ', strtoupper($matches[1]));
b93d00	648	$this->capability_readed = true;
59c216	649	}
A	650
	651	$this->message .= $line;
	652
	653	// TLS connection
	654	if ($this->prefs['ssl_mode'] == 'tls' && $this->getCapability('STARTTLS')) {
	655	if (version_compare(PHP_VERSION, '5.1.0', '>=')) {
	656	$this->putLine("tls0 STARTTLS");
	657
	658	$line = $this->readLine(4096);
	659	if (!$this->startsWith($line, "tls0 OK")) {
	660	$this->error = "Server responded to STARTTLS with: $line";
	661	$this->errornum = -2;
	662	return false;
	663	}
	664
	665	if (!stream_socket_enable_crypto($this->fp, true, STREAM_CRYPTO_METHOD_TLS_CLIENT)) {
	666	$this->error = "Unable to negotiate TLS";
	667	$this->errornum = -2;
	668	return false;
	669	}
1d5165	670
59c216	671	// Now we're authenticated, capabilities need to be reread
A	672	$this->clearCapability();
	673	}
	674	}
	675
	676	$orig_method = $auth_method;
	677
	678	if ($auth_method == 'CHECK') {
	679	// check for supported auth methods
	680	if ($this->getCapability('AUTH=CRAM-MD5') \|\| $this->getCapability('AUTH=CRAM_MD5')) {
	681	$auth_method = 'AUTH';
	682	}
	683	else {
	684	// default to plain text auth
	685	$auth_method = 'PLAIN';
	686	}
	687	}
	688
	689	if ($auth_method == 'AUTH') {
	690	// do CRAM-MD5 authentication
	691	$this->putLine("a000 AUTHENTICATE CRAM-MD5");
	692	$line = trim($this->readLine(1024));
	693
	694	if ($line[0] == '+') {
	695	// got a challenge string, try CRAM-MD5
	696	$result = $this->authenticate($user, $password, substr($line,2));
1d5165	697
59c216	698	// stop if server sent BYE response
A	699	if ($result == -3) {
	700	return false;
	701	}
	702	}
1d5165	703
59c216	704	if (!is_resource($result) && $orig_method == 'CHECK') {
A	705	$auth_method = 'PLAIN';
	706	}
	707	}
1d5165	708
59c216	709	if ($auth_method == 'PLAIN') {
A	710	// do plain text auth
	711	$result = $this->login($user, $password);
	712	}
	713
	714	if (is_resource($result)) {
	715	if ($this->prefs['force_caps']) {
	716	$this->clearCapability();
	717	}
c85424	718	$this->getNamespace();
59c216	719	$this->logged = true;
b93d00	720
59c216	721	return true;
A	722	} else {
	723	return false;
	724	}
	725	}
	726
	727	function connected()
	728	{
	729	return ($this->fp && $this->logged) ? true : false;
	730	}
	731
	732	function close()
	733	{
	734	if ($this->putLine("I LOGOUT")) {
	735	if (!feof($this->fp))
	736	fgets($this->fp, 1024);
	737	}
	738	@fclose($this->fp);
	739	$this->fp = false;
	740	}
	741
	742	function select($mailbox)
	743	{
	744	if (empty($mailbox)) {
	745	return false;
	746	}
	747	if ($this->selected == $mailbox) {
	748	return true;
	749	}
1d5165	750
59c216	751	if ($this->putLine("sel1 SELECT \"".$this->escape($mailbox).'"')) {
A	752	do {
	753	$line = chop($this->readLine(300));
	754	$a = explode(' ', $line);
	755	if (count($a) == 3) {
	756	$token = strtoupper($a[2]);
	757	if ($token == 'EXISTS') {
	758	$this->exists = (int) $a[1];
	759	}
	760	else if ($token == 'RECENT') {
	761	$this->recent = (int) $a[1];
	762	}
	763	}
	764	else if (preg_match('/\[?PERMANENTFLAGS\s+$([^$]+)\)\]/U', $line, $match)) {
	765	$this->permanentflags = explode(' ', $match[1]);
	766	}
	767	} while (!$this->startsWith($line, 'sel1', true, true));
	768
	769	if (strcasecmp($a[1], 'OK') == 0) {
	770	$this->selected = $mailbox;
	771	return true;
	772	}
	773	else {
	774	$this->error = "Couldn't select $mailbox";
	775	}
	776	}
	777
	778	return false;
	779	}
	780
	781	function checkForRecent($mailbox)
	782	{
	783	if (empty($mailbox)) {
	784	$mailbox = 'INBOX';
	785	}
1d5165	786
59c216	787	$this->select($mailbox);
A	788	if ($this->selected == $mailbox) {
	789	return $this->recent;
	790	}
	791
	792	return false;
	793	}
	794
	795	function countMessages($mailbox, $refresh = false)
	796	{
	797	if ($refresh) {
	798	$this->selected = '';
	799	}
1d5165	800
59c216	801	$this->select($mailbox);
A	802	if ($this->selected == $mailbox) {
	803	return $this->exists;
	804	}
	805
	806	return false;
	807	}
	808
	809	function sort($mailbox, $field, $add='', $is_uid=FALSE, $encoding = 'US-ASCII')
	810	{
	811	$field = strtoupper($field);
	812	if ($field == 'INTERNALDATE') {
	813	$field = 'ARRIVAL';
	814	}
1d5165	815
59c216	816	$fields = array('ARRIVAL' => 1,'CC' => 1,'DATE' => 1,
A	817	'FROM' => 1, 'SIZE' => 1, 'SUBJECT' => 1, 'TO' => 1);
	818
	819	if (!$fields[$field]) {
	820	return false;
	821	}
	822
	823	/* Do "SELECT" command */
	824	if (!$this->select($mailbox)) {
	825	return false;
	826	}
1d5165	827
59c216	828	$is_uid = $is_uid ? 'UID ' : '';
1d5165	829
59c216	830	// message IDs
A	831	if (is_array($add))
	832	$add = $this->compressMessageSet(join(',', $add));
	833
	834	$command = "s ".$is_uid."SORT ($field) $encoding ALL";
	835	$line = $data = '';
	836
	837	if (!empty($add))
	838	$command .= ' '.$add;
	839
	840	if (!$this->putLineC($command)) {
	841	return false;
	842	}
	843	do {
	844	$line = chop($this->readLine());
	845	if ($this->startsWith($line, '* SORT')) {
	846	$data .= substr($line, 7);
	847	} else if (preg_match('/^[0-9 ]+$/', $line)) {
	848	$data .= $line;
	849	}
	850	} while (!$this->startsWith($line, 's ', true, true));
1d5165	851
59c216	852	$result_code = $this->parseResult($line);
A	853	if ($result_code != 0) {
	854	$this->error = "Sort: $line";
	855	return false;
	856	}
1d5165	857
59c216	858	return preg_split('/\s+/', $data, -1, PREG_SPLIT_NO_EMPTY);
A	859	}
	860
	861	function fetchHeaderIndex($mailbox, $message_set, $index_field='', $skip_deleted=true, $uidfetch=false)
	862	{
	863	if (is_array($message_set)) {
	864	if (!($message_set = $this->compressMessageSet(join(',', $message_set))))
	865	return false;
	866	} else {
	867	list($from_idx, $to_idx) = explode(':', $message_set);
	868	if (empty($message_set) \|\|
	869	(isset($to_idx) && $to_idx != '*' && (int)$from_idx > (int)$to_idx)) {
	870	return false;
	871	}
	872	}
1d5165	873
59c216	874	$index_field = empty($index_field) ? 'DATE' : strtoupper($index_field);
1d5165	875
59c216	876	$fields_a['DATE'] = 1;
A	877	$fields_a['INTERNALDATE'] = 4;
	878	$fields_a['ARRIVAL'] = 4;
	879	$fields_a['FROM'] = 1;
	880	$fields_a['REPLY-TO'] = 1;
	881	$fields_a['SENDER'] = 1;
	882	$fields_a['TO'] = 1;
	883	$fields_a['CC'] = 1;
	884	$fields_a['SUBJECT'] = 1;
	885	$fields_a['UID'] = 2;
	886	$fields_a['SIZE'] = 2;
	887	$fields_a['SEEN'] = 3;
	888	$fields_a['RECENT'] = 3;
	889	$fields_a['DELETED'] = 3;
	890
	891	if (!($mode = $fields_a[$index_field])) {
	892	return false;
	893	}
	894
	895	/* Do "SELECT" command */
	896	if (!$this->select($mailbox)) {
	897	return false;
	898	}
1d5165	899
59c216	900	// build FETCH command string
A	901	$key = 'fhi0';
	902	$cmd = $uidfetch ? 'UID FETCH' : 'FETCH';
	903	$deleted = $skip_deleted ? ' FLAGS' : '';
	904
	905	if ($mode == 1 && $index_field == 'DATE')
	906	$request = " $cmd $message_set (INTERNALDATE BODY.PEEK[HEADER.FIELDS (DATE)]$deleted)";
	907	else if ($mode == 1)
	908	$request = " $cmd $message_set (BODY.PEEK[HEADER.FIELDS ($index_field)]$deleted)";
	909	else if ($mode == 2) {
	910	if ($index_field == 'SIZE')
	911	$request = " $cmd $message_set (RFC822.SIZE$deleted)";
	912	else
	913	$request = " $cmd $message_set ($index_field$deleted)";
	914	} else if ($mode == 3)
	915	$request = " $cmd $message_set (FLAGS)";
	916	else // 4
	917	$request = " $cmd $message_set (INTERNALDATE$deleted)";
	918
	919	$request = $key . $request;
	920
	921	if (!$this->putLine($request)) {
	922	return false;
	923	}
	924
	925	$result = array();
	926
	927	do {
	928	$line = chop($this->readLine(200));
	929	$line = $this->multLine($line);
	930
	931	if (preg_match('/^\* ([0-9]+) FETCH/', $line, $m)) {
	932	$id = $m[1];
	933	$flags = NULL;
1d5165	934
59c216	935	if ($skip_deleted && preg_match('/FLAGS $([^)]+)$/', $line, $matches)) {
A	936	$flags = explode(' ', strtoupper($matches[1]));
	937	if (in_array('\\DELETED', $flags)) {
	938	$deleted[$id] = $id;
	939	continue;
	940	}
	941	}
	942
	943	if ($mode == 1 && $index_field == 'DATE') {
	944	if (preg_match('/BODY\[HEADER\.FIELDS $"DATE"$\] (.*)/', $line, $matches)) {
	945	$value = preg_replace(array('/^"*[a-z]+:/i'), '', $matches[1]);
	946	$value = trim($value);
	947	$result[$id] = $this->strToTime($value);
	948	}
	949	// non-existent/empty Date: header, use INTERNALDATE
	950	if (empty($result[$id])) {
	951	if (preg_match('/INTERNALDATE "([^"]+)"/', $line, $matches))
	952	$result[$id] = $this->strToTime($matches[1]);
	953	else
	954	$result[$id] = 0;
	955	}
	956	} else if ($mode == 1) {
	957	if (preg_match('/BODY\[HEADER\.FIELDS $"?(FROM\|REPLY-TO\|SENDER\|TO\|SUBJECT)"?$\] (.*)/', $line, $matches)) {
	958	$value = preg_replace(array('/^"*[a-z]+:/i', '/\s+$/sm'), array('', ''), $matches[2]);
	959	$result[$id] = trim($value);
	960	} else {
	961	$result[$id] = '';
	962	}
	963	} else if ($mode == 2) {
	964	if (preg_match('/\((UID\|RFC822\.SIZE) ([0-9]+)/', $line, $matches)) {
	965	$result[$id] = trim($matches[2]);
	966	} else {
	967	$result[$id] = 0;
	968	}
	969	} else if ($mode == 3) {
	970	if (!$flags && preg_match('/FLAGS $([^)]+)$/', $line, $matches)) {
	971	$flags = explode(' ', $matches[1]);
	972	}
	973	$result[$id] = in_array('\\'.$index_field, $flags) ? 1 : 0;
	974	} else if ($mode == 4) {
	975	if (preg_match('/INTERNALDATE "([^"]+)"/', $line, $matches)) {
	976	$result[$id] = $this->strToTime($matches[1]);
	977	} else {
	978	$result[$id] = 0;
	979	}
	980	}
	981	}
	982	} while (!$this->startsWith($line, $key, true, true));
	983
1d5165	984	return $result;
59c216	985	}
A	986
	987	private function compressMessageSet($message_set)
	988	{
1d5165	989	// given a comma delimited list of independent mid's,
59c216	990	// compresses by grouping sequences together
1d5165	991
59c216	992	// if less than 255 bytes long, let's not bother
A	993	if (strlen($message_set)<255) {
	994	return $message_set;
	995	}
1d5165	996
59c216	997	// see if it's already been compress
A	998	if (strpos($message_set, ':') !== false) {
	999	return $message_set;
	1000	}
1d5165	1001
59c216	1002	// separate, then sort
A	1003	$ids = explode(',', $message_set);
	1004	sort($ids);
1d5165	1005
59c216	1006	$result = array();
A	1007	$start = $prev = $ids[0];
	1008
	1009	foreach ($ids as $id) {
	1010	$incr = $id - $prev;
	1011	if ($incr > 1) { //found a gap
	1012	if ($start == $prev) {
	1013	$result[] = $prev; //push single id
	1014	} else {
	1015	$result[] = $start . ':' . $prev; //push sequence as start_id:end_id
	1016	}
	1017	$start = $id; //start of new sequence
	1018	}
	1019	$prev = $id;
	1020	}
	1021
	1022	// handle the last sequence/id
	1023	if ($start==$prev) {
	1024	$result[] = $prev;
	1025	} else {
	1026	$result[] = $start.':'.$prev;
	1027	}
1d5165	1028
59c216	1029	// return as comma separated string
A	1030	return implode(',', $result);
	1031	}
	1032
	1033	function UID2ID($folder, $uid)
	1034	{
	1035	if ($uid > 0) {
	1036	$id_a = $this->search($folder, "UID $uid");
	1037	if (is_array($id_a) && count($id_a) == 1) {
	1038	return $id_a[0];
	1039	}
	1040	}
	1041	return false;
	1042	}
	1043
	1044	function ID2UID($folder, $id)
	1045	{
	1046	if (empty($id)) {
	1047	return -1;
	1048	}
	1049
	1050	if (!$this->select($folder)) {
	1051	return -1;
	1052	}
	1053
	1054	$result = -1;
	1055	if ($this->putLine("fuid FETCH $id (UID)")) {
	1056	do {
	1057	$line = chop($this->readLine(1024));
	1058	if (preg_match("/^\* $id FETCH $UID (.*)$/i", $line, $r)) {
	1059	$result = $r[1];
	1060	}
	1061	} while (!$this->startsWith($line, 'fuid', true, true));
	1062	}
	1063
	1064	return $result;
	1065	}
	1066
	1067	function fetchUIDs($mailbox, $message_set=null)
	1068	{
	1069	if (is_array($message_set))
	1070	$message_set = join(',', $message_set);
	1071	else if (empty($message_set))
	1072	$message_set = '1:*';
1d5165	1073
59c216	1074	return $this->fetchHeaderIndex($mailbox, $message_set, 'UID', false);
A	1075	}
	1076
	1077	function fetchHeaders($mailbox, $message_set, $uidfetch=false, $bodystr=false, $add='')
	1078	{
	1079	$result = array();
1d5165	1080
59c216	1081	if (!$this->select($mailbox)) {
A	1082	return false;
	1083	}
	1084
	1085	if (is_array($message_set))
	1086	$message_set = join(',', $message_set);
	1087
	1088	$message_set = $this->compressMessageSet($message_set);
	1089
	1090	if ($add)
	1091	$add = ' '.strtoupper(trim($add));
	1092
	1093	/* FETCH uid, size, flags and headers */
	1094	$key = 'FH12';
	1095	$request = $key . ($uidfetch ? ' UID' : '') . " FETCH $message_set ";
	1096	$request .= "(UID RFC822.SIZE FLAGS INTERNALDATE ";
	1097	if ($bodystr)
	1098	$request .= "BODYSTRUCTURE ";
	1099	$request .= "BODY.PEEK[HEADER.FIELDS ";
	1100	$request .= "(DATE FROM TO SUBJECT REPLY-TO IN-REPLY-TO CC BCC ";
	1101	$request .= "CONTENT-TRANSFER-ENCODING CONTENT-TYPE MESSAGE-ID ";
	1102	$request .= "REFERENCES DISPOSITION-NOTIFICATION-TO X-PRIORITY ";
	1103	$request .= "X-DRAFT-INFO".$add.")])";
	1104
	1105	if (!$this->putLine($request)) {
	1106	return false;
	1107	}
	1108	do {
	1109	$line = $this->readLine(1024);
	1110	$line = $this->multLine($line);
1d5165	1111
59c216	1112	if (!$line)
A	1113	break;
1d5165	1114
59c216	1115	$a = explode(' ', $line);
A	1116
	1117	if (($line[0] == '*') && ($a[2] == 'FETCH')) {
	1118	$id = $a[1];
1d5165	1119
59c216	1120	$result[$id] = new rcube_mail_header;
A	1121	$result[$id]->id = $id;
	1122	$result[$id]->subject = '';
	1123	$result[$id]->messageID = 'mid:' . $id;
	1124
	1125	$lines = array();
	1126	$ln = 0;
	1127
	1128	// Sample reply line:
	1129	// * 321 FETCH (UID 2417 RFC822.SIZE 2730 FLAGS (\Seen)
	1130	// INTERNALDATE "16-Nov-2008 21:08:46 +0100" BODYSTRUCTURE (...)
	1131	// BODY[HEADER.FIELDS ...
	1132
	1133	if (preg_match('/^\* [0-9]+ FETCH \((.*) BODY/s', $line, $matches)) {
	1134	$str = $matches[1];
	1135
	1136	// swap parents with quotes, then explode
	1137	$str = preg_replace('/[()]/', '"', $str);
	1138	$a = rcube_explode_quoted_string(' ', $str);
	1139
	1140	// did we get the right number of replies?
	1141	$parts_count = count($a);
	1142	if ($parts_count>=6) {
	1143	for ($i=0; $i<$parts_count; $i=$i+2) {
	1144	if ($a[$i] == 'UID')
	1145	$result[$id]->uid = $a[$i+1];
	1146	else if ($a[$i] == 'RFC822.SIZE')
	1147	$result[$id]->size = $a[$i+1];
	1148	else if ($a[$i] == 'INTERNALDATE')
	1149	$time_str = $a[$i+1];
	1150	else if ($a[$i] == 'FLAGS')
	1151	$flags_str = $a[$i+1];
	1152	}
	1153
	1154	$time_str = str_replace('"', '', $time_str);
1d5165	1155
59c216	1156	// if time is gmt...
A	1157	$time_str = str_replace('GMT','+0000',$time_str);
1d5165	1158
59c216	1159	$result[$id]->internaldate = $time_str;
A	1160	$result[$id]->timestamp = $this->StrToTime($time_str);
	1161	$result[$id]->date = $time_str;
	1162	}
	1163
1d5165	1164	// BODYSTRUCTURE
59c216	1165	if($bodystr) {
A	1166	while (!preg_match('/ BODYSTRUCTURE (.*) BODY\[HEADER.FIELDS/s', $line, $m)) {
	1167	$line2 = $this->readLine(1024);
	1168	$line .= $this->multLine($line2, true);
	1169	}
	1170	$result[$id]->body_structure = $m[1];
	1171	}
	1172
	1173	// the rest of the result
	1174	preg_match('/ BODY\[HEADER.FIELDS $.?$\]\s(.*)$/s', $line, $m);
	1175	$reslines = explode("\n", trim($m[1], '"'));
	1176	// re-parse (see below)
	1177	foreach ($reslines as $resln) {
	1178	if (ord($resln[0])<=32) {
	1179	$lines[$ln] .= (empty($lines[$ln])?'':"\n").trim($resln);
	1180	} else {
	1181	$lines[++$ln] = trim($resln);
	1182	}
	1183	}
	1184	}
	1185
	1186	// Start parsing headers. The problem is, some header "lines" take up multiple lines.
	1187	// So, we'll read ahead, and if the one we're reading now is a valid header, we'll
	1188	// process the previous line. Otherwise, we'll keep adding the strings until we come
	1189	// to the next valid header line.
1d5165	1190
59c216	1191	do {
A	1192	$line = chop($this->readLine(300), "\r\n");
	1193
	1194	// The preg_match below works around communigate imap, which outputs " UID <number>)".
	1195	// Without this, the while statement continues on and gets the "FH0 OK completed" message.
1d5165	1196	// If this loop gets the ending message, then the outer loop does not receive it from radline on line 1249.
59c216	1197	// This in causes the if statement on line 1278 to never be true, which causes the headers to end up missing
A	1198	// If the if statement was changed to pick up the fh0 from this loop, then it causes the outer loop to spin
	1199	// An alternative might be:
	1200	// if (!preg_match("/:/",$line) && preg_match("/\)$/",$line)) break;
	1201	// however, unsure how well this would work with all imap clients.
	1202	if (preg_match("/^\s*UID [0-9]+\)$/", $line)) {
	1203	break;
	1204	}
	1205
	1206	// handle FLAGS reply after headers (AOL, Zimbra?)
	1207	if (preg_match('/\s+FLAGS $(.*)$\)$/', $line, $matches)) {
	1208	$flags_str = $matches[1];
	1209	break;
	1210	}
	1211
	1212	if (ord($line[0])<=32) {
	1213	$lines[$ln] .= (empty($lines[$ln])?'':"\n").trim($line);
	1214	} else {
	1215	$lines[++$ln] = trim($line);
	1216	}
	1217	// patch from "Maksim Rubis" <siburny@hotmail.com>
	1218	} while ($line[0] != ')' && !$this->startsWith($line, $key, true));
	1219
1d5165	1220	if (strncmp($line, $key, strlen($key))) {
59c216	1221	// process header, fill rcube_mail_header obj.
A	1222	// initialize
	1223	if (is_array($headers)) {
	1224	reset($headers);
	1225	while (list($k, $bar) = each($headers)) {
	1226	$headers[$k] = '';
	1227	}
	1228	}
	1229
	1230	// create array with header field:data
	1231	while ( list($lines_key, $str) = each($lines) ) {
	1232	list($field, $string) = $this->splitHeaderLine($str);
1d5165	1233
59c216	1234	$field = strtolower($field);
A	1235	$string = preg_replace('/\n\s*/', ' ', $string);
1d5165	1236
59c216	1237	switch ($field) {
A	1238	case 'date';
	1239	$result[$id]->date = $string;
	1240	$result[$id]->timestamp = $this->strToTime($string);
	1241	break;
	1242	case 'from':
	1243	$result[$id]->from = $string;
	1244	break;
	1245	case 'to':
	1246	$result[$id]->to = preg_replace('/undisclosed-recipients:[;,]*/', '', $string);
	1247	break;
	1248	case 'subject':
	1249	$result[$id]->subject = $string;
	1250	break;
	1251	case 'reply-to':
	1252	$result[$id]->replyto = $string;
	1253	break;
	1254	case 'cc':
	1255	$result[$id]->cc = $string;
	1256	break;
	1257	case 'bcc':
	1258	$result[$id]->bcc = $string;
	1259	break;
	1260	case 'content-transfer-encoding':
	1261	$result[$id]->encoding = $string;
	1262	break;
	1263	case 'content-type':
	1264	$ctype_parts = preg_split('/[; ]/', $string);
	1265	$result[$id]->ctype = array_shift($ctype_parts);
	1266	if (preg_match('/charset\s=\s"?([a-z0-9\-\.\_]+)"?/i', $string, $regs)) {
	1267	$result[$id]->charset = $regs[1];
	1268	}
	1269	break;
	1270	case 'in-reply-to':
	1271	$result[$id]->in_reply_to = preg_replace('/[\n<>]/', '', $string);
	1272	break;
	1273	case 'references':
	1274	$result[$id]->references = $string;
	1275	break;
	1276	case 'return-receipt-to':
	1277	case 'disposition-notification-to':
	1278	case 'x-confirm-reading-to':
	1279	$result[$id]->mdn_to = $string;
	1280	break;
	1281	case 'message-id':
	1282	$result[$id]->messageID = $string;
	1283	break;
	1284	case 'x-priority':
	1285	if (preg_match('/^(\d+)/', $string, $matches))
	1286	$result[$id]->priority = intval($matches[1]);
	1287	break;
	1288	default:
	1289	if (strlen($field) > 2)
	1290	$result[$id]->others[$field] = $string;
	1291	break;
	1292	} // end switch ()
	1293	} // end while ()
	1294	} else {
	1295	$a = explode(' ', $line);
	1296	}
	1297
	1298	// process flags
	1299	if (!empty($flags_str)) {
	1300	$flags_str = preg_replace('/[\\\"]/', '', $flags_str);
	1301	$flags_a = explode(' ', $flags_str);
1d5165	1302
59c216	1303	if (is_array($flags_a)) {
A	1304	// reset($flags_a);
	1305	foreach($flags_a as $flag) {
	1306	$flag = strtoupper($flag);
	1307	if ($flag == 'SEEN') {
	1308	$result[$id]->seen = true;
	1309	} else if ($flag == 'DELETED') {
	1310	$result[$id]->deleted = true;
	1311	} else if ($flag == 'RECENT') {
	1312	$result[$id]->recent = true;
	1313	} else if ($flag == 'ANSWERED') {
	1314	$result[$id]->answered = true;
	1315	} else if ($flag == '$FORWARDED') {
	1316	$result[$id]->forwarded = true;
	1317	} else if ($flag == 'DRAFT') {
	1318	$result[$id]->is_draft = true;
	1319	} else if ($flag == '$MDNSENT') {
	1320	$result[$id]->mdn_sent = true;
	1321	} else if ($flag == 'FLAGGED') {
	1322	$result[$id]->flagged = true;
	1323	}
	1324	}
	1325	$result[$id]->flags = $flags_a;
	1326	}
	1327	}
	1328	}
	1329	} while (!$this->startsWith($line, $key, true));
	1330
	1331	return $result;
	1332	}
	1333
	1334	function fetchHeader($mailbox, $id, $uidfetch=false, $bodystr=false, $add='')
	1335	{
	1336	$a = $this->fetchHeaders($mailbox, $id, $uidfetch, $bodystr, $add);
	1337	if (is_array($a)) {
	1338	return array_shift($a);
	1339	}
	1340	return false;
	1341	}
	1342
	1343	function sortHeaders($a, $field, $flag)
	1344	{
	1345	if (empty($field)) {
	1346	$field = 'uid';
	1347	}
	1348	else {
	1349	$field = strtolower($field);
	1350	}
	1351
	1352	if ($field == 'date' \|\| $field == 'internaldate') {
	1353	$field = 'timestamp';
	1354	}
	1355	if (empty($flag)) {
	1356	$flag = 'ASC';
	1357	} else {
	1358	$flag = strtoupper($flag);
	1359	}
	1360
	1361	$stripArr = ($field=='subject') ? array('Re: ','Fwd: ','Fw: ','"') : array('"');
	1362
	1363	$c = count($a);
	1364	if ($c > 0) {
1d5165	1365
59c216	1366	// Strategy:
A	1367	// First, we'll create an "index" array.
1d5165	1368	// Then, we'll use sort() on that array,
59c216	1369	// and use that to sort the main array.
1d5165	1370
59c216	1371	// create "index" array
A	1372	$index = array();
	1373	reset($a);
	1374	while (list($key, $val) = each($a)) {
	1375	if ($field == 'timestamp') {
	1376	$data = $this->strToTime($val->date);
	1377	if (!$data) {
	1378	$data = $val->timestamp;
	1379	}
	1380	} else {
	1381	$data = $val->$field;
	1382	if (is_string($data)) {
	1383	$data = strtoupper(str_replace($stripArr, '', $data));
	1384	}
	1385	}
	1386	$index[$key]=$data;
	1387	}
1d5165	1388
59c216	1389	// sort index
A	1390	$i = 0;
	1391	if ($flag == 'ASC') {
	1392	asort($index);
	1393	} else {
	1394	arsort($index);
	1395	}
	1396
1d5165	1397	// form new array based on index
59c216	1398	$result = array();
A	1399	reset($index);
	1400	while (list($key, $val) = each($index)) {
	1401	$result[$key]=$a[$key];
	1402	$i++;
	1403	}
	1404	}
1d5165	1405
59c216	1406	return $result;
A	1407	}
	1408
	1409	function expunge($mailbox, $messages=NULL)
	1410	{
	1411	if (!$this->select($mailbox)) {
	1412	return -1;
	1413	}
1d5165	1414
59c216	1415	$c = 0;
A	1416	$command = $messages ? "UID EXPUNGE $messages" : "EXPUNGE";
	1417
	1418	if (!$this->putLine("exp1 $command")) {
	1419	return -1;
	1420	}
	1421
	1422	do {
	1423	$line = $this->readLine(100);
	1424	if ($line[0] == '*') {
	1425	$c++;
	1426	}
	1427	} while (!$this->startsWith($line, 'exp1', true, true));
1d5165	1428
59c216	1429	if ($this->parseResult($line) == 0) {
A	1430	$this->selected = ''; // state has changed, need to reselect
	1431	return $c;
	1432	}
	1433	$this->error = $line;
	1434	return -1;
	1435	}
	1436
	1437	function modFlag($mailbox, $messages, $flag, $mod)
	1438	{
	1439	if ($mod != '+' && $mod != '-') {
	1440	return -1;
	1441	}
1d5165	1442
59c216	1443	$flag = $this->flags[strtoupper($flag)];
1d5165	1444
59c216	1445	if (!$this->select($mailbox)) {
A	1446	return -1;
	1447	}
1d5165	1448
59c216	1449	$c = 0;
A	1450	if (!$this->putLine("flg UID STORE $messages {$mod}FLAGS ($flag)")) {
	1451	return false;
	1452	}
	1453
	1454	do {
	1455	$line = $this->readLine(1000);
	1456	if ($line[0] == '*') {
	1457	$c++;
	1458	}
	1459	} while (!$this->startsWith($line, 'flg', true, true));
	1460
	1461	if ($this->parseResult($line) == 0) {
	1462	return $c;
	1463	}
	1464
	1465	$this->error = $line;
	1466	return -1;
	1467	}
	1468
	1469	function flag($mailbox, $messages, $flag) {
	1470	return $this->modFlag($mailbox, $messages, $flag, '+');
	1471	}
	1472
	1473	function unflag($mailbox, $messages, $flag) {
	1474	return $this->modFlag($mailbox, $messages, $flag, '-');
	1475	}
	1476
	1477	function delete($mailbox, $messages) {
	1478	return $this->modFlag($mailbox, $messages, 'DELETED', '+');
	1479	}
	1480
	1481	function copy($messages, $from, $to)
	1482	{
	1483	if (empty($from) \|\| empty($to)) {
	1484	return -1;
	1485	}
1d5165	1486
59c216	1487	if (!$this->select($from)) {
A	1488	return -1;
	1489	}
1d5165	1490
59c216	1491	$this->putLine("cpy1 UID COPY $messages \"".$this->escape($to)."\"");
A	1492	$line = $this->readReply();
	1493	return $this->parseResult($line);
	1494	}
	1495
	1496	function countUnseen($folder)
	1497	{
	1498	$index = $this->search($folder, 'ALL UNSEEN');
	1499	if (is_array($index))
	1500	return count($index);
	1501	return false;
	1502	}
	1503
	1504	// Don't be tempted to change $str to pass by reference to speed this up - it will slow it down by about
	1505	// 7 times instead :-) See comments on http://uk2.php.net/references and this article:
	1506	// http://derickrethans.nl/files/phparch-php-variables-article.pdf
	1507	private function parseThread($str, $begin, $end, $root, $parent, $depth, &$depthmap, &$haschildren)
	1508	{
	1509	$node = array();
	1510	if ($str[$begin] != '(') {
0bc59e	1511	$stop = $begin + strspn($str, '1234567890', $begin, $end - $begin);
59c216	1512	$msg = substr($str, $begin, $stop - $begin);
A	1513	if ($msg == 0)
	1514	return $node;
	1515	if (is_null($root))
	1516	$root = $msg;
	1517	$depthmap[$msg] = $depth;
	1518	$haschildren[$msg] = false;
	1519	if (!is_null($parent))
	1520	$haschildren[$parent] = true;
	1521	if ($stop + 1 < $end)
	1522	$node[$msg] = $this->parseThread($str, $stop + 1, $end, $root, $msg, $depth + 1, $depthmap, $haschildren);
	1523	else
	1524	$node[$msg] = array();
	1525	} else {
	1526	$off = $begin;
	1527	while ($off < $end) {
	1528	$start = $off;
	1529	$off++;
	1530	$n = 1;
	1531	while ($n > 0) {
	1532	$p = strpos($str, ')', $off);
	1533	if ($p === false) {
	1534	error_log('Mismatched brackets parsing IMAP THREAD response:');
	1535	error_log(substr($str, ($begin < 10) ? 0 : ($begin - 10), $end - $begin + 20));
	1536	error_log(str_repeat(' ', $off - (($begin < 10) ? 0 : ($begin - 10))));
	1537	return $node;
	1538	}
	1539	$p1 = strpos($str, '(', $off);
	1540	if ($p1 !== false && $p1 < $p) {
	1541	$off = $p1 + 1;
	1542	$n++;
	1543	} else {
	1544	$off = $p + 1;
	1545	$n--;
	1546	}
	1547	}
	1548	$node += $this->parseThread($str, $start + 1, $off - 1, $root, $parent, $depth, $depthmap, $haschildren);
	1549	}
	1550	}
1d5165	1551
59c216	1552	return $node;
A	1553	}
	1554
	1555	function thread($folder, $algorithm='REFERENCES', $criteria='', $encoding='US-ASCII')
	1556	{
ccf250	1557	$old_sel = $this->selected;
A	1558
59c216	1559	if (!$this->select($folder)) {
ccf250	1560	return false;
A	1561	}
	1562
	1563	// return empty result when folder is empty and we're just after SELECT
	1564	if ($old_sel != $folder && !$this->exists) {
	1565	return array(array(), array(), array());
59c216	1566	}
A	1567
	1568	$encoding = $encoding ? trim($encoding) : 'US-ASCII';
	1569	$algorithm = $algorithm ? trim($algorithm) : 'REFERENCES';
	1570	$criteria = $criteria ? 'ALL '.trim($criteria) : 'ALL';
0bc59e	1571	$data = '';
1d5165	1572
59c216	1573	if (!$this->putLineC("thrd1 THREAD $algorithm $encoding $criteria")) {
A	1574	return false;
	1575	}
	1576	do {
0bc59e	1577	$line = trim($this->readLine());
A	1578	if ($this->startsWith($line, '* THREAD')) {
	1579	$data .= substr($line, 9);
	1580	} else if (preg_match('/^[0-9() ]+$/', $line)) {
	1581	$data .= $line;
59c216	1582	}
A	1583	} while (!$this->startsWith($line, 'thrd1', true, true));
	1584
	1585	$result_code = $this->parseResult($line);
	1586	if ($result_code == 0) {
0bc59e	1587	$depthmap = array();
A	1588	$haschildren = array();
	1589	$tree = $this->parseThread($data, 0, strlen($data), null, null, 0, $depthmap, $haschildren);
	1590	return array($tree, $depthmap, $haschildren);
59c216	1591	}
A	1592
	1593	$this->error = "Thread: $line";
1d5165	1594	return false;
59c216	1595	}
A	1596
6f31b3	1597	function search($folder, $criteria, $return_uid=false)
59c216	1598	{
309f49	1599	$old_sel = $this->selected;
A	1600
59c216	1601	if (!$this->select($folder)) {
A	1602	return false;
	1603	}
	1604
309f49	1605	// return empty result when folder is empty and we're just after SELECT
A	1606	if ($old_sel != $folder && !$this->exists) {
	1607	return array();
	1608	}
	1609
59c216	1610	$data = '';
6f31b3	1611	$query = 'srch1 ' . ($return_uid ? 'UID ' : '') . 'SEARCH ' . chop($criteria);
59c216	1612
A	1613	if (!$this->putLineC($query)) {
	1614	return false;
	1615	}
6f31b3	1616
59c216	1617	do {
A	1618	$line = trim($this->readLine());
	1619	if ($this->startsWith($line, '* SEARCH')) {
	1620	$data .= substr($line, 8);
	1621	} else if (preg_match('/^[0-9 ]+$/', $line)) {
	1622	$data .= $line;
	1623	}
	1624	} while (!$this->startsWith($line, 'srch1', true, true));
	1625
	1626	$result_code = $this->parseResult($line);
	1627	if ($result_code == 0) {
	1628	return preg_split('/\s+/', $data, -1, PREG_SPLIT_NO_EMPTY);
	1629	}
	1630
	1631	$this->error = "Search: $line";
1d5165	1632	return false;
59c216	1633	}
A	1634
	1635	function move($messages, $from, $to)
	1636	{
	1637	if (!$from \|\| !$to) {
	1638	return -1;
	1639	}
1d5165	1640
59c216	1641	$r = $this->copy($messages, $from, $to);
A	1642
	1643	if ($r==0) {
	1644	return $this->delete($from, $messages);
	1645	}
	1646	return $r;
	1647	}
	1648
	1649	function listMailboxes($ref, $mailbox)
	1650	{
f0485a	1651	return $this->_listMailboxes($ref, $mailbox, false);
A	1652	}
	1653
	1654	function listSubscribed($ref, $mailbox)
	1655	{
	1656	return $this->_listMailboxes($ref, $mailbox, true);
	1657	}
	1658
	1659	private function _listMailboxes($ref, $mailbox, $subscribed=false)
	1660	{
59c216	1661	if (empty($mailbox)) {
A	1662	$mailbox = '*';
	1663	}
1d5165	1664
59c216	1665	if (empty($ref) && $this->rootdir) {
A	1666	$ref = $this->rootdir;
	1667	}
1d5165	1668
f0485a	1669	if ($subscribed) {
A	1670	$key = 'lsb';
	1671	$command = 'LSUB';
	1672	}
	1673	else {
	1674	$key = 'lmb';
	1675	$command = 'LIST';
	1676	}
	1677
59c216	1678	// send command
f0485a	1679	if (!$this->putLine($key." ".$command." \"". $this->escape($ref) ."\" \"". $this->escape($mailbox) ."\"")) {
A	1680	$this->error = "Couldn't send $command command";
59c216	1681	return false;
A	1682	}
1d5165	1683
59c216	1684	// get folder list
A	1685	do {
	1686	$line = $this->readLine(500);
	1687	$line = $this->multLine($line, true);
f0485a	1688	$a = explode(' ', $line);
59c216	1689
f0485a	1690	if (($line[0] == '*') && ($a[1] == $command)) {
59c216	1691	$line = rtrim($line);
A	1692	// split one line
	1693	$a = rcube_explode_quoted_string(' ', $line);
	1694	// last string is folder name
f0485a	1695	$folders[] = preg_replace(array('/^"/', '/"$/'), '', $this->unEscape($a[count($a)-1]));
59c216	1696	// second from last is delimiter
A	1697	$delim = trim($a[count($a)-2], '"');
	1698	}
f0485a	1699	} while (!$this->startsWith($line, $key, true));
59c216	1700
A	1701	if (is_array($folders)) {
	1702	return $folders;
	1703	} else if ($this->parseResult($line) == 0) {
f0485a	1704	return array();
59c216	1705	}
A	1706
	1707	$this->error = $line;
	1708	return false;
	1709	}
	1710
	1711	function fetchMIMEHeaders($mailbox, $id, $parts, $mime=true)
	1712	{
	1713	if (!$this->select($mailbox)) {
	1714	return false;
	1715	}
1d5165	1716
59c216	1717	$result = false;
A	1718	$parts = (array) $parts;
	1719	$key = 'fmh0';
	1720	$peeks = '';
	1721	$idx = 0;
	1722	$type = $mime ? 'MIME' : 'HEADER';
	1723
	1724	// format request
	1725	foreach($parts as $part)
	1726	$peeks[] = "BODY.PEEK[$part.$type]";
1d5165	1727
59c216	1728	$request = "$key FETCH $id (" . implode(' ', $peeks) . ')';
A	1729
	1730	// send request
	1731	if (!$this->putLine($request)) {
	1732	return false;
	1733	}
1d5165	1734
59c216	1735	do {
A	1736	$line = $this->readLine(1000);
	1737	$line = $this->multLine($line);
	1738
	1739	if (preg_match('/BODY\[([0-9\.]+)\.'.$type.'\]/', $line, $matches)) {
	1740	$idx = $matches[1];
	1741	$result[$idx] = preg_replace('/^(\* '.$id.' FETCH \()?\s*BODY\['.$idx.'\.'.$type.'\]\s+/', '', $line);
	1742	$result[$idx] = trim($result[$idx], '"');
	1743	$result[$idx] = rtrim($result[$idx], "\t\r\n\0\x0B");
	1744	}
	1745	} while (!$this->startsWith($line, $key, true));
	1746
	1747	return $result;
	1748	}
	1749
	1750	function fetchPartHeader($mailbox, $id, $is_uid=false, $part=NULL)
	1751	{
	1752	$part = empty($part) ? 'HEADER' : $part.'.MIME';
	1753
	1754	return $this->handlePartBody($mailbox, $id, $is_uid, $part);
	1755	}
	1756
	1757	function handlePartBody($mailbox, $id, $is_uid=false, $part='', $encoding=NULL, $print=NULL, $file=NULL)
	1758	{
	1759	if (!$this->select($mailbox)) {
	1760	return false;
	1761	}
	1762
	1763	switch ($encoding) {
	1764	case 'base64':
	1765	$mode = 1;
	1766	break;
	1767	case 'quoted-printable':
	1768	$mode = 2;
	1769	break;
	1770	case 'x-uuencode':
	1771	case 'x-uue':
	1772	case 'uue':
	1773	case 'uuencode':
	1774	$mode = 3;
	1775	break;
	1776	default:
	1777	$mode = 0;
	1778	}
1d5165	1779
59c216	1780	// format request
64e3e8	1781	$reply_key = '* ' . $id;
A	1782	$key = 'ftch0';
	1783	$request = $key . ($is_uid ? ' UID' : '') . " FETCH $id (BODY.PEEK[$part])";
	1784
59c216	1785	// send request
A	1786	if (!$this->putLine($request)) {
	1787	return false;
	1788	}
	1789
	1790	// receive reply line
	1791	do {
	1792	$line = chop($this->readLine(1000));
	1793	$a = explode(' ', $line);
	1794	} while (!($end = $this->startsWith($line, $key, true)) && $a[2] != 'FETCH');
	1795
64e3e8	1796	$len = strlen($line);
A	1797	$result = false;
59c216	1798
A	1799	// handle empty "* X FETCH ()" response
	1800	if ($line[$len-1] == ')' && $line[$len-2] != '(') {
	1801	// one line response, get everything between first and last quotes
	1802	if (substr($line, -4, 3) == 'NIL') {
	1803	// NIL response
	1804	$result = '';
	1805	} else {
	1806	$from = strpos($line, '"') + 1;
	1807	$to = strrpos($line, '"');
	1808	$len = $to - $from;
	1809	$result = substr($line, $from, $len);
	1810	}
	1811
	1812	if ($mode == 1)
	1813	$result = base64_decode($result);
	1814	else if ($mode == 2)
	1815	$result = quoted_printable_decode($result);
	1816	else if ($mode == 3)
	1817	$result = convert_uudecode($result);
	1818
	1819	} else if ($line[$len-1] == '}') {
	1820	// multi-line request, find sizes of content and receive that many bytes
	1821	$from = strpos($line, '{') + 1;
	1822	$to = strrpos($line, '}');
	1823	$len = $to - $from;
	1824	$sizeStr = substr($line, $from, $len);
	1825	$bytes = (int)$sizeStr;
	1826	$prev = '';
1d5165	1827
59c216	1828	while ($bytes > 0) {
A	1829	$line = $this->readLine(1024);
	1830	$len = strlen($line);
1d5165	1831
59c216	1832	if ($len > $bytes) {
A	1833	$line = substr($line, 0, $bytes);
	1834	$len = strlen($line);
	1835	}
	1836	$bytes -= $len;
	1837
	1838	if ($mode == 1) {
	1839	$line = rtrim($line, "\t\r\n\0\x0B");
	1840	// create chunks with proper length for base64 decoding
	1841	$line = $prev.$line;
	1842	$length = strlen($line);
	1843	if ($length % 4) {
	1844	$length = floor($length / 4) * 4;
	1845	$prev = substr($line, $length);
	1846	$line = substr($line, 0, $length);
	1847	}
	1848	else
	1849	$prev = '';
1d5165	1850
59c216	1851	if ($file)
A	1852	fwrite($file, base64_decode($line));
	1853	else if ($print)
	1854	echo base64_decode($line);
	1855	else
	1856	$result .= base64_decode($line);
	1857	} else if ($mode == 2) {
	1858	$line = rtrim($line, "\t\r\0\x0B");
	1859	if ($file)
	1860	fwrite($file, quoted_printable_decode($line));
	1861	else if ($print)
	1862	echo quoted_printable_decode($line);
	1863	else
	1864	$result .= quoted_printable_decode($line);
	1865	} else if ($mode == 3) {
	1866	$line = rtrim($line, "\t\r\n\0\x0B");
	1867	if ($line == 'end' \|\| preg_match('/^begin\s+[0-7]+\s+.+$/', $line))
	1868	continue;
	1869	if ($file)
	1870	fwrite($file, convert_uudecode($line));
	1871	else if ($print)
	1872	echo convert_uudecode($line);
	1873	else
	1874	$result .= convert_uudecode($line);
	1875	} else {
	1876	$line = rtrim($line, "\t\r\n\0\x0B");
	1877	if ($file)
	1878	fwrite($file, $line . "\n");
	1879	else if ($print)
	1880	echo $line . "\n";
	1881	else
	1882	$result .= $line . "\n";
	1883	}
	1884	}
	1885	}
1d5165	1886
59c216	1887	// read in anything up until last line
A	1888	if (!$end)
	1889	do {
	1890	$line = $this->readLine(1024);
	1891	} while (!$this->startsWith($line, $key, true));
	1892
64e3e8	1893	if ($result !== false) {
59c216	1894	if ($file) {
A	1895	fwrite($file, $result);
	1896	} else if ($print) {
	1897	echo $result;
	1898	} else
	1899	return $result;
	1900	return true;
	1901	}
	1902
	1903	return false;
	1904	}
	1905
	1906	function createFolder($folder)
	1907	{
	1908	if ($this->putLine('c CREATE "' . $this->escape($folder) . '"')) {
	1909	do {
	1910	$line = $this->readLine(300);
	1911	} while (!$this->startsWith($line, 'c ', true, true));
	1912	return ($this->parseResult($line) == 0);
	1913	}
	1914	return false;
	1915	}
	1916
	1917	function renameFolder($from, $to)
	1918	{
	1919	if ($this->putLine('r RENAME "' . $this->escape($from) . '" "' . $this->escape($to) . '"')) {
	1920	do {
	1921	$line = $this->readLine(300);
	1922	} while (!$this->startsWith($line, 'r ', true, true));
	1923	return ($this->parseResult($line) == 0);
	1924	}
	1925	return false;
	1926	}
	1927
	1928	function deleteFolder($folder)
	1929	{
	1930	if ($this->putLine('d DELETE "' . $this->escape($folder). '"')) {
	1931	do {
	1932	$line = $this->readLine(300);
	1933	} while (!$this->startsWith($line, 'd ', true, true));
	1934	return ($this->parseResult($line) == 0);
	1935	}
	1936	return false;
	1937	}
	1938
	1939	function clearFolder($folder)
	1940	{
	1941	$num_in_trash = $this->countMessages($folder);
	1942	if ($num_in_trash > 0) {
	1943	$this->delete($folder, '1:*');
	1944	}
	1945	return ($this->expunge($folder) >= 0);
	1946	}
	1947
	1948	function subscribe($folder)
	1949	{
	1950	$query = 'sub1 SUBSCRIBE "' . $this->escape($folder). '"';
	1951	$this->putLine($query);
	1952
	1953	$line = trim($this->readLine(512));
	1954	return ($this->parseResult($line) == 0);
	1955	}
	1956
	1957	function unsubscribe($folder)
	1958	{
	1959	$query = 'usub1 UNSUBSCRIBE "' . $this->escape($folder) . '"';
	1960	$this->putLine($query);
1d5165	1961
59c216	1962	$line = trim($this->readLine(512));
A	1963	return ($this->parseResult($line) == 0);
	1964	}
	1965
	1966	function append($folder, &$message)
	1967	{
	1968	if (!$folder) {
	1969	return false;
	1970	}
	1971
	1972	$message = str_replace("\r", '', $message);
	1973	$message = str_replace("\n", "\r\n", $message);
	1974
	1975	$len = strlen($message);
	1976	if (!$len) {
	1977	return false;
	1978	}
	1979
	1980	$request = 'a APPEND "' . $this->escape($folder) .'" (\\Seen) {' . $len . '}';
	1981
	1982	if ($this->putLine($request)) {
	1983	$line = $this->readLine(512);
	1984
	1985	if ($line[0] != '+') {
	1986	// $errornum = $this->parseResult($line);
	1987	$this->error = "Cannot write to folder: $line";
	1988	return false;
	1989	}
	1990
	1991	if (!$this->putLine($message)) {
	1992	return false;
	1993	}
	1994
	1995	do {
	1996	$line = $this->readLine();
	1997	} while (!$this->startsWith($line, 'a ', true, true));
1d5165	1998
59c216	1999	$result = ($this->parseResult($line) == 0);
A	2000	if (!$result) {
	2001	$this->error = $line;
	2002	}
	2003	return $result;
	2004	}
	2005
	2006	$this->error = "Couldn't send command \"$request\"";
	2007	return false;
	2008	}
	2009
	2010	function appendFromFile($folder, $path, $headers=null, $separator="\n\n")
	2011	{
	2012	if (!$folder) {
	2013	return false;
	2014	}
1d5165	2015
59c216	2016	// open message file
A	2017	$in_fp = false;
	2018	if (file_exists(realpath($path))) {
	2019	$in_fp = fopen($path, 'r');
	2020	}
1d5165	2021	if (!$in_fp) {
59c216	2022	$this->error = "Couldn't open $path for reading";
A	2023	return false;
	2024	}
1d5165	2025
59c216	2026	$len = filesize($path);
A	2027	if (!$len) {
	2028	return false;
	2029	}
	2030
	2031	if ($headers) {
	2032	$headers = preg_replace('/[\r\n]+$/', '', $headers);
	2033	$len += strlen($headers) + strlen($separator);
	2034	}
	2035
	2036	// send APPEND command
	2037	$request = 'a APPEND "' . $this->escape($folder) . '" (\\Seen) {' . $len . '}';
	2038	if ($this->putLine($request)) {
	2039	$line = $this->readLine(512);
	2040
	2041	if ($line[0] != '+') {
	2042	//$errornum = $this->parseResult($line);
	2043	$this->error = "Cannot write to folder: $line";
	2044	return false;
	2045	}
	2046
	2047	// send headers with body separator
	2048	if ($headers) {
	2049	$this->putLine($headers . $separator, false);
	2050	}
	2051
	2052	// send file
	2053	while (!feof($in_fp) && $this->fp) {
	2054	$buffer = fgets($in_fp, 4096);
	2055	$this->putLine($buffer, false);
	2056	}
	2057	fclose($in_fp);
	2058
	2059	if (!$this->putLine('')) { // \r\n
	2060	return false;
	2061	}
	2062
	2063	// read response
	2064	do {
	2065	$line = $this->readLine();
	2066	} while (!$this->startsWith($line, 'a ', true, true));
	2067
	2068	$result = ($this->parseResult($line) == 0);
	2069	if (!$result) {
	2070	$this->error = $line;
	2071	}
	2072
	2073	return $result;
	2074	}
1d5165	2075
59c216	2076	$this->error = "Couldn't send command \"$request\"";
A	2077	return false;
	2078	}
	2079
	2080	function fetchStructureString($folder, $id, $is_uid=false)
	2081	{
	2082	if (!$this->select($folder)) {
	2083	return false;
	2084	}
	2085
	2086	$key = 'F1247';
	2087	$result = false;
	2088
	2089	if ($this->putLine($key . ($is_uid ? ' UID' : '') ." FETCH $id (BODYSTRUCTURE)")) {
	2090	do {
	2091	$line = $this->readLine(5000);
	2092	$line = $this->multLine($line, true);
	2093	if (!preg_match("/^$key/", $line))
	2094	$result .= $line;
	2095	} while (!$this->startsWith($line, $key, true, true));
	2096
	2097	$result = trim(substr($result, strpos($result, 'BODYSTRUCTURE')+13, -1));
	2098	}
	2099
	2100	return $result;
	2101	}
	2102
	2103	function getQuota()
	2104	{
	2105	/*
	2106	* GETQUOTAROOT "INBOX"
	2107	* QUOTAROOT INBOX user/rchijiiwa1
	2108	* QUOTA user/rchijiiwa1 (STORAGE 654 9765)
	2109	* OK Completed
	2110	*/
	2111	$result = false;
	2112	$quota_lines = array();
1d5165	2113
59c216	2114	// get line(s) containing quota info
A	2115	if ($this->putLine('QUOT1 GETQUOTAROOT "INBOX"')) {
	2116	do {
	2117	$line = chop($this->readLine(5000));
	2118	if ($this->startsWith($line, '* QUOTA ')) {
	2119	$quota_lines[] = $line;
	2120	}
	2121	} while (!$this->startsWith($line, 'QUOT1', true, true));
	2122	}
1d5165	2123
59c216	2124	// return false if not found, parse if found
A	2125	$min_free = PHP_INT_MAX;
	2126	foreach ($quota_lines as $key => $quota_line) {
	2127	$quota_line = preg_replace('/[()]/', '', $quota_line);
	2128	$parts = explode(' ', $quota_line);
	2129	$storage_part = array_search('STORAGE', $parts);
1d5165	2130
59c216	2131	if (!$storage_part)
A	2132	continue;
1d5165	2133
59c216	2134	$used = intval($parts[$storage_part+1]);
A	2135	$total = intval($parts[$storage_part+2]);
1d5165	2136	$free = $total - $used;
A	2137
59c216	2138	// return lowest available space from all quotas
1d5165	2139	if ($free < $min_free) {
A	2140	$min_free = $free;
59c216	2141	$result['used'] = $used;
A	2142	$result['total'] = $total;
	2143	$result['percent'] = min(100, round(($used/max(1,$total))*100));
	2144	$result['free'] = 100 - $result['percent'];
	2145	}
	2146	}
	2147
	2148	return $result;
	2149	}
	2150
6f31b3	2151	private function _xor($string, $string2)
59c216	2152	{
A	2153	$result = '';
	2154	$size = strlen($string);
	2155	for ($i=0; $i<$size; $i++) {
	2156	$result .= chr(ord($string[$i]) ^ ord($string2[$i]));
	2157	}
	2158	return $result;
	2159	}
	2160
	2161	private function strToTime($date)
	2162	{
	2163	// support non-standard "GMTXXXX" literal
	2164	$date = preg_replace('/GMT\s*([+-][0-9]+)/', '\\1', $date);
	2165	// if date parsing fails, we have a date in non-rfc format.
	2166	// remove token from the end and try again
	2167	while ((($ts = @strtotime($date))===false) \|\| ($ts < 0)) {
	2168	$d = explode(' ', $date);
	2169	array_pop($d);
	2170	if (!$d) break;
	2171	$date = implode(' ', $d);
	2172	}
	2173
	2174	$ts = (int) $ts;
	2175
1d5165	2176	return $ts < 0 ? 0 : $ts;
59c216	2177	}
A	2178
	2179	private function SplitHeaderLine($string)
	2180	{
	2181	$pos = strpos($string, ':');
	2182	if ($pos>0) {
	2183	$res[0] = substr($string, 0, $pos);
	2184	$res[1] = trim(substr($string, $pos+1));
	2185	return $res;
	2186	}
	2187	return $string;
	2188	}
	2189
	2190	private function parseNamespace($str, &$i, $len=0, $l)
	2191	{
	2192	if (!$l) {
	2193	$str = str_replace('NIL', '()', $str);
	2194	}
	2195	if (!$len) {
	2196	$len = strlen($str);
	2197	}
	2198	$data = array();
	2199	$in_quotes = false;
	2200	$elem = 0;
1d5165	2201
59c216	2202	for ($i;$i<$len;$i++) {
A	2203	$c = (string)$str[$i];
	2204	if ($c == '(' && !$in_quotes) {
	2205	$i++;
	2206	$data[$elem] = $this->parseNamespace($str, $i, $len, $l++);
	2207	$elem++;
	2208	} else if ($c == ')' && !$in_quotes) {
	2209	return $data;
	2210	} else if ($c == '\\') {
	2211	$i++;
	2212	if ($in_quotes) {
	2213	$data[$elem] .= $c.$str[$i];
	2214	}
	2215	} else if ($c == '"') {
	2216	$in_quotes = !$in_quotes;
	2217	if (!$in_quotes) {
	2218	$elem++;
	2219	}
	2220	} else if ($in_quotes) {
	2221	$data[$elem].=$c;
	2222	}
	2223	}
1d5165	2224
59c216	2225	return $data;
A	2226	}
	2227
	2228	private function escape($string)
	2229	{
1d5165	2230	return strtr($string, array('"'=>'\\"', '\\' => '\\\\'));
59c216	2231	}
A	2232
	2233	private function unEscape($string)
	2234	{
1d5165	2235	return strtr($string, array('\\"'=>'"', '\\\\' => '\\'));
59c216	2236	}
A	2237
	2238	}
	2239
	2240	?>