githubFork/roundcubemail.git

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2006-12-16 77c28206a14b5bee3f3091f10cffd531bce5649c

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4e17e6	1	<?php
T	2	/////////////////////////////////////////////////////////
	3	//
	4	// Iloha IMAP Library (IIL)
	5	//
	6	// (C)Copyright 2002 Ryo Chijiiwa <Ryo@IlohaMail.org>
	7	//
	8	// This file is part of IlohaMail. IlohaMail is free software released
	9	// under the GPL license. See enclosed file COPYING for details, or
	10	// see http://www.fsf.org/copyleft/gpl.html
	11	//
	12	/////////////////////////////////////////////////////////
	13
	14	/********************************************************
	15
	16	FILE: include/imap.inc
	17	PURPOSE:
	18	Provide alternative IMAP library that doesn't rely on the standard
	19	C-Client based version. This allows IlohaMail to function regardless
	20	of whether or not the PHP build it's running on has IMAP functionality
	21	built-in.
	22	USEAGE:
	23	Function containing "_C_" in name require connection handler to be
	24	passed as one of the parameters. To obtain connection handler, use
	25	iil_Connect()
0284c2	26	VERSION:
T	27	IlohaMail-0.9-20050415
	28	CHANGES:
	29	File altered by Thomas Bruederli <roundcube@gmail.com>
	30	to fit enhanced equirements by the RoundCube Webmail:
	31	- Added list of server capabilites and check these before invoking commands
	32	- Added junk flag to iilBasicHeader
	33	- Enhanced error reporting on fsockopen()
	34	- Additional parameter for SORT command
	35	- Removed Call-time pass-by-reference because deprecated
	36	- Parse charset from content-type in iil_C_FetchHeaders()
	37	- Enhanced heaer sorting
	38	- Pass message as reference in iil_C_Append (to save memory)
f88d41	39	- Added BCC and REFERENCE to the list of headers to fetch in iil_C_FetchHeaders()
T	40	- Leave messageID unchanged in iil_C_FetchHeaders()
	41	- Avoid stripslahes in iil_Connect()
0a020c	42	- Escape quotes and backslashes in iil_C_Login()
0d361b	43	- Added patch to iil_SortHeaders() by Richard Green
8c2e58	44	- Removed <br> from error messages (better for logging)
e6f360	45	- Added patch to iil_C_Sort() enabling UID SORT commands
T	46	- Added function iil_C_ID2UID()
6eeb17	47	- Casting date parts in iil_StrToTime() to avoid mktime() warnings
baf135	48	- Also acceppt LIST responses in iil_C_ListSubscribed()
24053e	49	- Sanity check of $message_set in iil_C_FetchHeaders(), iil_C_FetchHeaderIndex(), iil_C_FetchThreadHeaders()
f7bfec	50	- Implemented UID FETCH in iil_C_FetchHeaders()
0284c2	51	- Removed some debuggers (echo ...)
4e17e6	52
T	53	********************************************************/
0284c2	54
4e17e6	55
T	56	// changed path to work within roundcube webmail
	57	include_once("lib/icl_commons.inc");
	58
	59
	60	if (!$IMAP_USE_HEADER_DATE) $IMAP_USE_INTERNAL_DATE = true;
	61	$IMAP_MONTHS=array("Jan"=>1,"Feb"=>2,"Mar"=>3,"Apr"=>4,"May"=>5,"Jun"=>6,"Jul"=>7,"Aug"=>8,"Sep"=>9,"Oct"=>10,"Nov"=>11,"Dec"=>12);
	62	$IMAP_SERVER_TZ = date('Z');
	63
	64	$iil_error;
	65	$iil_errornum;
	66	$iil_selected;
	67
	68	class iilConnection{
	69	var $fp;
	70	var $error;
	71	var $errorNum;
	72	var $selected;
	73	var $message;
	74	var $host;
	75	var $cache;
	76	var $uid_cache;
	77	var $do_cache;
	78	var $exists;
	79	var $recent;
	80	var $rootdir;
	81	var $delimiter;
f3b659	82	var $capability = array();
4e17e6	83	}
T	84
	85	class iilBasicHeader{
	86	var $id;
	87	var $uid;
	88	var $subject;
	89	var $from;
	90	var $to;
	91	var $cc;
	92	var $replyto;
	93	var $in_reply_to;
	94	var $date;
	95	var $messageID;
	96	var $size;
	97	var $encoding;
	98	var $ctype;
	99	var $flags;
	100	var $timestamp;
	101	var $f;
	102	var $seen;
	103	var $deleted;
	104	var $recent;
	105	var $answered;
	106	var $junk;
	107	var $internaldate;
	108	var $is_reply;
	109	}
	110
	111
	112	class iilThreadHeader{
	113	var $id;
	114	var $sbj;
	115	var $irt;
	116	var $mid;
	117	}
	118
	119
	120	function iil_xor($string, $string2){
	121	$result = "";
	122	$size = strlen($string);
	123	for ($i=0; $i<$size; $i++) $result .= chr(ord($string[$i]) ^ ord($string2[$i]));
	124
	125	return $result;
	126	}
	127
	128	function iil_ReadLine($fp, $size){
	129	$line="";
	130	if ($fp){
	131	do{
	132	$buffer = fgets($fp, 2048);
	133	$line.=$buffer;
	134	}while($buffer[strlen($buffer)-1]!="\n");
	135	}
	136	return $line;
	137	}
	138
	139	function iil_MultLine($fp, $line){
	140	$line = chop($line);
	141	if (ereg('\{[0-9]+\}$', $line)){
	142	$out = "";
	143	preg_match_all('/(.*)\{([0-9]+)\}$/', $line, $a);
	144	$bytes = $a[2][0];
	145	while(strlen($out)<$bytes){
	146	$out.=chop(iil_ReadLine($fp, 1024));
	147	}
	148	$line = $a[1][0]."\"$out\"";
	149	}
	150	return $line;
	151	}
	152
	153	function iil_ReadBytes($fp, $bytes){
	154	$data = "";
	155	$len = 0;
	156	do{
	157	$data.=fread($fp, $bytes-$len);
	158	$len = strlen($data);
	159	}while($len<$bytes);
	160	return $data;
	161	}
	162
	163	function iil_ReadReply($fp){
	164	do{
	165	$line = chop(trim(iil_ReadLine($fp, 1024)));
	166	}while($line[0]=="*");
	167
	168	return $line;
	169	}
	170
	171	function iil_ParseResult($string){
	172	$a=explode(" ", $string);
	173	if (count($a) > 2){
	174	if (strcasecmp($a[1], "OK")==0) return 0;
	175	else if (strcasecmp($a[1], "NO")==0) return -1;
	176	else if (strcasecmp($a[1], "BAD")==0) return -2;
	177	}else return -3;
	178	}
	179
	180	// check if $string starts with $match
	181	function iil_StartsWith($string, $match){
	182	$len = strlen($match);
	183	if ($len==0) return false;
	184	if (strncmp($string, $match, $len)==0) return true;
	185	else return false;
	186	}
	187
	188	function iil_StartsWithI($string, $match){
	189	$len = strlen($match);
	190	if ($len==0) return false;
	191	if (strncasecmp($string, $match, $len)==0) return true;
	192	else return false;
	193	}
	194
	195
	196	function iil_C_Authenticate(&$conn, $user, $pass, $encChallenge){
	197
	198	// initialize ipad, opad
	199	for ($i=0;$i<64;$i++){
	200	$ipad.=chr(0x36);
	201	$opad.=chr(0x5C);
	202	}
	203	// pad $pass so it's 64 bytes
	204	$padLen = 64 - strlen($pass);
	205	for ($i=0;$i<$padLen;$i++) $pass .= chr(0);
	206	// generate hash
	207	$hash = md5(iil_xor($pass,$opad).pack("H*",md5(iil_xor($pass, $ipad).base64_decode($encChallenge))));
	208	// generate reply
	209	$reply = base64_encode($user." ".$hash);
	210
	211	// send result, get reply
	212	fputs($conn->fp, $reply."\r\n");
	213	$line = iil_ReadLine($conn->fp, 1024);
	214
	215	// process result
	216	if (iil_ParseResult($line)==0){
	217	$conn->error .= "";
	218	$conn->errorNum = 0;
	219	return $conn->fp;
	220	}else{
8c2e58	221	$conn->error .= 'Authentication for '.$user.' failed (AUTH): "'.htmlspecialchars($line)."\"";
4e17e6	222	$conn->errorNum = -2;
T	223	return false;
	224	}
	225	}
	226
	227	function iil_C_Login(&$conn, $user, $password){
	228
0a020c	229	$password = strtr($password, array('"'=>'\\"', '\\' => '\\\\'));
4e17e6	230	fputs($conn->fp, "a001 LOGIN $user \"$password\"\r\n");
0a020c	231
4e17e6	232	do{
T	233	$line = iil_ReadReply($conn->fp);
	234	}while(!iil_StartsWith($line, "a001 "));
	235	$a=explode(" ", $line);
	236	if (strcmp($a[1],"OK")==0){
	237	$result=$conn->fp;
	238	$conn->error.="";
	239	$conn->errorNum = 0;
	240	}else{
	241	$result=false;
	242	fclose($conn->fp);
8c2e58	243	$conn->error .= 'Authentication for '.$user.' failed (LOGIN): "'.htmlspecialchars($line)."\"";
4e17e6	244	$conn->errorNum = -2;
T	245	}
	246	return $result;
	247	}
	248
	249	function iil_ParseNamespace2($str, &$i, $len=0, $l){
	250	if (!$l) $str = str_replace("NIL", "()", $str);
	251	if (!$len) $len = strlen($str);
	252	$data = array();
	253	$in_quotes = false;
	254	$elem = 0;
	255	for($i;$i<$len;$i++){
	256	$c = (string)$str[$i];
	257	if ($c=='(' && !$in_quotes){
	258	$i++;
	259	$data[$elem] = iil_ParseNamespace2($str, $i, $len, $l++);
	260	$elem++;
	261	}else if ($c==')' && !$in_quotes) return $data;
	262	else if ($c=="\\"){
	263	$i++;
	264	if ($in_quotes) $data[$elem].=$c.$str[$i];
	265	}else if ($c=='"'){
	266	$in_quotes = !$in_quotes;
	267	if (!$in_quotes) $elem++;
	268	}else if ($in_quotes){
	269	$data[$elem].=$c;
	270	}
	271	}
	272	return $data;
	273	}
	274
	275	function iil_C_NameSpace(&$conn){
	276	global $my_prefs;
	277
f3b659	278	if (!in_array('NAMESPACE', $conn->capability))
T	279	return false;
	280
4e17e6	281	if ($my_prefs["rootdir"]) return true;
T	282
	283	fputs($conn->fp, "ns1 NAMESPACE\r\n");
	284	do{
	285	$line = iil_ReadLine($conn->fp, 1024);
	286	if (iil_StartsWith($line, "* NAMESPACE")){
	287	$i = 0;
	288	$data = iil_ParseNamespace2(substr($line,11), $i, 0, 0);
	289	}
	290	}while(!iil_StartsWith($line, "ns1"));
	291
	292	if (!is_array($data)) return false;
	293
	294	$user_space_data = $data[0];
	295	if (!is_array($user_space_data)) return false;
	296
	297	$first_userspace = $user_space_data[0];
	298	if (count($first_userspace)!=2) return false;
	299
	300	$conn->rootdir = $first_userspace[0];
	301	$conn->delimiter = $first_userspace[1];
	302	$my_prefs["rootdir"] = substr($conn->rootdir, 0, -1);
	303
	304	return true;
	305
	306	}
	307
	308	function iil_Connect($host, $user, $password){
	309	global $iil_error, $iil_errornum;
	310	global $ICL_SSL, $ICL_PORT;
	311	global $IMAP_NO_CACHE;
	312	global $my_prefs, $IMAP_USE_INTERNAL_DATE;
	313
	314	$iil_error = "";
	315	$iil_errornum = 0;
	316
	317	//strip slashes
f88d41	318	// $user = stripslashes($user);
T	319	// $password = stripslashes($password);
4e17e6	320
T	321	//set auth method
	322	$auth_method = "plain";
	323	if (func_num_args() >= 4){
	324	$auth_array = func_get_arg(3);
	325	if (is_array($auth_array)) $auth_method = $auth_array["imap"];
	326	if (empty($auth_method)) $auth_method = "plain";
	327	}
	328	$message = "INITIAL: $auth_method\n";
	329
	330	$result = false;
	331
	332	//initialize connection
	333	$conn = new iilConnection;
	334	$conn->error="";
	335	$conn->errorNum=0;
	336	$conn->selected="";
	337	$conn->user = $user;
	338	$conn->host = $host;
	339	$conn->cache = array();
	340	$conn->do_cache = (function_exists("cache_write")&&!$IMAP_NO_CACHE);
	341	$conn->cache_dirty = array();
	342
	343	if ($my_prefs['sort_field']=='INTERNALDATE') $IMAP_USE_INTERNAL_DATE = true;
	344	else if ($my_prefs['sort_field']=='DATE') $IMAP_USE_INTERNAL_DATE = false;
	345	//echo '<!-- conn sort_field: '.$my_prefs['sort_field'].' //-->';
	346
	347	//check input
8c2e58	348	if (empty($host)) $iil_error .= "Invalid host\n";
T	349	if (empty($user)) $iil_error .= "Invalid user\n";
	350	if (empty($password)) $iil_error .= "Invalid password\n";
4e17e6	351	if (!empty($iil_error)) return false;
T	352	if (!$ICL_PORT) $ICL_PORT = 143;
	353
	354	//check for SSL
	355	if ($ICL_SSL){
	356	$host = "ssl://".$host;
	357	}
	358
	359	//open socket connection
9fee0e	360	$conn->fp = @fsockopen($host, $ICL_PORT, $errno, $errstr, 10);
4e17e6	361	if (!$conn->fp){
520c36	362	$iil_error = "Could not connect to $host at port $ICL_PORT: $errstr";
4e17e6	363	$iil_errornum = -1;
T	364	return false;
	365	}
	366
	367	$iil_error.="Socket connection established\r\n";
	368	$line=iil_ReadLine($conn->fp, 300);
f3b659	369
4e17e6	370	if (strcasecmp($auth_method, "check")==0){
T	371	//check for supported auth methods
	372
	373	//default to plain text auth
	374	$auth_method = "plain";
	375
	376	//check for CRAM-MD5
	377	fputs($conn->fp, "cp01 CAPABILITY\r\n");
	378	do{
	379	$line = trim(chop(iil_ReadLine($conn->fp, 100)));
42b113	380	$conn->message.="$line\n";
4e17e6	381	$a = explode(" ", $line);
T	382	if ($line[0]=="*"){
	383	while ( list($k, $w) = each($a) ){
f3b659	384	if ($w!='*' && $w!='CAPABILITY')
T	385	$conn->capability[] = $w;
4e17e6	386	if ((strcasecmp($w, "AUTH=CRAM_MD5")==0)\|\|
T	387	(strcasecmp($w, "AUTH=CRAM-MD5")==0)){
	388	$auth_method = "auth";
	389	}
	390	}
	391	}
	392	}while($a[0]!="cp01");
	393	}
	394
	395	if (strcasecmp($auth_method, "auth")==0){
	396	$conn->message.="Trying CRAM-MD5\n";
	397	//do CRAM-MD5 authentication
	398	fputs($conn->fp, "a000 AUTHENTICATE CRAM-MD5\r\n");
	399	$line = trim(chop(iil_ReadLine($conn->fp, 1024)));
42b113	400	$conn->message.="$line\n";
4e17e6	401	if ($line[0]=="+"){
T	402	$conn->message.='Got challenge: '.htmlspecialchars($line)."\n";
	403	//got a challenge string, try CRAM-5
	404	$result = iil_C_Authenticate($conn, $user, $password, substr($line,2));
	405	$conn->message.= "Tried CRAM-MD5: $result \n";
	406	}else{
	407	$conn->message.='No challenge ('.htmlspecialchars($line)."), try plain\n";
	408	$auth = "plain";
	409	}
	410	}
	411
	412	if ((!$result)\|\|(strcasecmp($auth, "plain")==0)){
	413	//do plain text auth
	414	$result = iil_C_Login($conn, $user, $password);
	415	$conn->message.="Tried PLAIN: $result \n";
	416	}
	417
	418	$conn->message .= $auth;
	419
	420	if ($result){
	421	iil_C_Namespace($conn);
	422	return $conn;
	423	}else{
	424	$iil_error = $conn->error;
	425	$iil_errornum = $conn->errorNum;
	426	return false;
	427	}
	428	}
	429
	430	function iil_Close(&$conn){
	431	iil_C_WriteCache($conn);
	432	if (@fputs($conn->fp, "I LOGOUT\r\n")){
	433	fgets($conn->fp, 1024);
	434	fclose($conn->fp);
	435	$conn->fp = false;
	436	}
	437	}
	438
	439	function iil_ClearCache($user, $host){
	440	}
	441
	442
	443	function iil_C_WriteCache(&$conn){
	444	//echo "<!-- doing iil_C_WriteCache //-->\n";
	445	if (!$conn->do_cache) return false;
	446
	447	if (is_array($conn->cache)){
	448	while(list($folder,$data)=each($conn->cache)){
	449	if ($folder && is_array($data) && $conn->cache_dirty[$folder]){
	450	$key = $folder.".imap";
	451	$result = cache_write($conn->user, $conn->host, $key, $data, true);
	452	//echo "<!-- writing $key $data: $result //-->\n";
	453	}
	454	}
	455	}
	456	}
	457
	458	function iil_C_EnableCache(&$conn){
	459	$conn->do_cache = true;
	460	}
	461
	462	function iil_C_DisableCache(&$conn){
	463	$conn->do_cache = false;
	464	}
	465
	466	function iil_C_LoadCache(&$conn, $folder){
	467	if (!$conn->do_cache) return false;
	468
	469	$key = $folder.".imap";
	470	if (!is_array($conn->cache[$folder])){
	471	$conn->cache[$folder] = cache_read($conn->user, $conn->host, $key);
	472	$conn->cache_dirty[$folder] = false;
	473	}
	474	}
	475
	476	function iil_C_ExpireCachedItems(&$conn, $folder, $message_set){
	477
	478	if (!$conn->do_cache) return; //caching disabled
	479	if (!is_array($conn->cache[$folder])) return; //cache not initialized\|empty
	480	if (count($conn->cache[$folder])==0) return; //cache not initialized\|empty
	481
	482	$uids = iil_C_FetchHeaderIndex($conn, $folder, $message_set, "UID");
	483	$num_removed = 0;
	484	if (is_array($uids)){
	485	//echo "<!-- unsetting: ".implode(",",$uids)." //-->\n";
	486	while(list($n,$uid)=each($uids)){
	487	unset($conn->cache[$folder][$uid]);
	488	//$conn->cache[$folder][$uid] = false;
	489	//$num_removed++;
	490	}
	491	$conn->cache_dirty[$folder] = true;
	492
	493	//echo '<!--'."\n";
	494	//print_r($conn->cache);
	495	//echo "\n".'//-->'."\n";
	496	}else{
	497	echo "<!-- failed to get uids: $message_set //-->\n";
	498	}
	499
	500	/*
	501	if ($num_removed>0){
	502	$new_cache;
	503	reset($conn->cache[$folder]);
	504	while(list($uid,$item)=each($conn->cache[$folder])){
	505	if ($item) $new_cache[$uid] = $conn->cache[$folder][$uid];
	506	}
	507	$conn->cache[$folder] = $new_cache;
	508	}
	509	*/
	510	}
	511
	512	function iil_ExplodeQuotedString($delimiter, $string){
	513	$quotes=explode("\"", $string);
	514	while ( list($key, $val) = each($quotes))
	515	if (($key % 2) == 1)
	516	$quotes[$key] = str_replace($delimiter, "_!@!_", $quotes[$key]);
	517	$string=implode("\"", $quotes);
	518
	519	$result=explode($delimiter, $string);
	520	while ( list($key, $val) = each($result) )
	521	$result[$key] = str_replace("_!@!_", $delimiter, $result[$key]);
	522
	523	return $result;
	524	}
	525
	526	function iil_CheckForRecent($host, $user, $password, $mailbox){
	527	if (empty($mailbox)) $mailbox="INBOX";
	528
	529	$conn=iil_Connect($host, $user, $password, "plain");
	530	$fp = $conn->fp;
	531	if ($fp){
	532	fputs($fp, "a002 EXAMINE \"$mailbox\"\r\n");
	533	do{
	534	$line=chop(iil_ReadLine($fp, 300));
	535	$a=explode(" ", $line);
	536	if (($a[0]=="*") && (strcasecmp($a[2], "RECENT")==0)) $result=(int)$a[1];
	537	}while (!iil_StartsWith($a[0],"a002"));
	538
	539	fputs($fp, "a003 LOGOUT\r\n");
	540	fclose($fp);
	541	}else $result=-2;
	542
	543	return $result;
	544	}
	545
	546	function iil_C_Select(&$conn, $mailbox){
	547	$fp = $conn->fp;
	548
	549	if (empty($mailbox)) return false;
	550	if (strcmp($conn->selected, $mailbox)==0) return true;
	551
	552	iil_C_LoadCache($conn, $mailbox);
	553
	554	if (fputs($fp, "sel1 SELECT \"$mailbox\"\r\n")){
	555	do{
	556	$line=chop(iil_ReadLine($fp, 300));
	557	$a=explode(" ", $line);
	558	if (count($a) == 3){
	559	if (strcasecmp($a[2], "EXISTS")==0) $conn->exists=(int)$a[1];
	560	if (strcasecmp($a[2], "RECENT")==0) $conn->recent=(int)$a[1];
	561	}
	562	}while (!iil_StartsWith($line, "sel1"));
	563
	564	$a=explode(" ", $line);
	565
	566	if (strcasecmp($a[1],"OK")==0){
	567	$conn->selected = $mailbox;
	568	return true;
	569	}else return false;
	570	}else{
	571	return false;
	572	}
	573	}
	574
	575	function iil_C_CheckForRecent(&$conn, $mailbox){
	576	if (empty($mailbox)) $mailbox="INBOX";
	577
	578	iil_C_Select($conn, $mailbox);
	579	if ($conn->selected==$mailbox) return $conn->recent;
	580	else return false;
	581	}
	582
	583	function iil_C_CountMessages(&$conn, $mailbox, $refresh=false){
	584	if ($refresh) $conn->selected="";
	585	iil_C_Select($conn, $mailbox);
	586	if ($conn->selected==$mailbox) return $conn->exists;
	587	else return false;
	588	}
	589
	590	function iil_SplitHeaderLine($string){
	591	$pos=strpos($string, ":");
	592	if ($pos>0){
	593	$res[0]=substr($string, 0, $pos);
	594	$res[1]=trim(substr($string, $pos+1));
	595	return $res;
	596	}else{
	597	return $string;
	598	}
	599	}
	600
	601	function iil_StrToTime($str){
	602	global $IMAP_MONTHS,$IMAP_SERVER_TZ;
	603
	604	if ($str) $time1 = strtotime($str);
	605	if ($time1 && $time1!=-1) return $time1-$IMAP_SERVER_TZ;
	606
	607	//echo '<!--'.$str.'//-->';
	608
	609	//replace double spaces with single space
	610	$str = trim($str);
	611	$str = str_replace(" ", " ", $str);
	612
	613	//strip off day of week
	614	$pos=strpos($str, " ");
	615	if (!is_numeric(substr($str, 0, $pos))) $str = substr($str, $pos+1);
	616
	617	//explode, take good parts
	618	$a=explode(" ",$str);
	619	//$month_a=array("Jan"=>1,"Feb"=>2,"Mar"=>3,"Apr"=>4,"May"=>5,"Jun"=>6,"Jul"=>7,"Aug"=>8,"Sep"=>9,"Oct"=>10,"Nov"=>11,"Dec"=>12);
	620	$month_str=$a[1];
	621	$month=$IMAP_MONTHS[$month_str];
a4bafb	622	$day=(int)$a[0];
6eeb17	623	$year=(int)$a[2];
4e17e6	624	$time=$a[3];
T	625	$tz_str = $a[4];
	626	$tz = substr($tz_str, 0, 3);
6eeb17	627	$ta = explode(":",$time);
4e17e6	628	$hour=(int)$ta[0]-(int)$tz;
6eeb17	629	$minute=(int)$ta[1];
T	630	$second=(int)$ta[2];
4e17e6	631
T	632	//make UNIX timestamp
	633	$time2 = mktime($hour, $minute, $second, $month, $day, $year);
	634	//echo '<!--'.$time1.' '.$time2.' //-->'."\n";
	635	return $time2;
	636	}
	637
e6f360	638	function iil_C_Sort(&$conn, $mailbox, $field, $add='', $is_uid=FALSE, $encoding='US-ASCII'){
4e17e6	639	/* Do "SELECT" command */
T	640	if (!iil_C_Select($conn, $mailbox)) return false;
	641
	642	$field = strtoupper($field);
	643	if ($field=='INTERNALDATE') $field='ARRIVAL';
	644	$fields = array('ARRIVAL'=>1,'CC'=>1,'DATE'=>1,'FROM'=>1,'SIZE'=>1,'SUBJECT'=>1,'TO'=>1);
	645
e6f360	646	if (!$fields[$field])
T	647	return false;
4e17e6	648
e6f360	649	$is_uid = $is_uid ? 'UID ' : '';
T	650
	651	if (!empty($add))
	652	$add = " $add";
	653
4e17e6	654	$fp = $conn->fp;
e6f360	655	$command = 's '. $is_uid .'SORT ('.$field.') '.$encoding.' ALL'."$add\r\n";
4e17e6	656	$line = $data = '';
T	657
	658	if (!fputs($fp, $command)) return false;
	659	do{
	660	$line = chop(iil_ReadLine($fp, 1024));
	661	if (iil_StartsWith($line, '* SORT')) $data.=($data?' ':'').substr($line,7);
	662	}while($line[0]!='s');
	663
	664	if (empty($data)){
	665	$conn->error = $line;
	666	return false;
	667	}
	668
	669	$out = explode(' ',$data);
	670	return $out;
	671	}
	672
e6f360	673	function iil_C_FetchHeaderIndex(&$conn, $mailbox, $message_set, $index_field, $normalize=true){
4e17e6	674	global $IMAP_USE_INTERNAL_DATE;
T	675
	676	$c=0;
	677	$result=array();
	678	$fp = $conn->fp;
	679
	680	if (empty($index_field)) $index_field="DATE";
	681	$index_field = strtoupper($index_field);
	682
24053e	683	list($from_idx, $to_idx) = explode(':', $message_set);
T	684	if (empty($message_set) \|\| (isset($to_idx) && (int)$from_idx > (int)$to_idx))
	685	return false;
4e17e6	686
T	687	//$fields_a["DATE"] = ($IMAP_USE_INTERNAL_DATE?6:1);
	688	$fields_a['DATE'] = 1;
	689	$fields_a['INTERNALDATE'] = 6;
	690	$fields_a['FROM'] = 1;
	691	$fields_a['REPLY-TO'] = 1;
	692	$fields_a['SENDER'] = 1;
	693	$fields_a['TO'] = 1;
	694	$fields_a['SUBJECT'] = 1;
	695	$fields_a['UID'] = 2;
	696	$fields_a['SIZE'] = 2;
	697	$fields_a['SEEN'] = 3;
	698	$fields_a['RECENT'] = 4;
	699	$fields_a['DELETED'] = 5;
	700
	701	$mode=$fields_a[$index_field];
	702	if (!($mode > 0)) return false;
	703
	704	/* Do "SELECT" command */
	705	if (!iil_C_Select($conn, $mailbox)) return false;
	706
	707	/* FETCH date,from,subject headers */
	708	if ($mode==1){
	709	$key="fhi".($c++);
	710	$request=$key." FETCH $message_set (BODY.PEEK[HEADER.FIELDS ($index_field)])\r\n";
	711	if (!fputs($fp, $request)) return false;
	712	do{
	713
	714	$line=chop(iil_ReadLine($fp, 200));
	715	$a=explode(" ", $line);
	716	if (($line[0]=="*") && ($a[2]=="FETCH") && ($line[strlen($line)-1]!=")")){
	717	$id=$a[1];
	718
	719	$str=$line=chop(iil_ReadLine($fp, 300));
	720
	721	while($line[0]!=")"){ //caution, this line works only in this particular case
	722	$line=chop(iil_ReadLine($fp, 300));
	723	if ($line[0]!=")"){
	724	if (ord($line[0]) <= 32){ //continuation from previous header line
	725	$str.=" ".trim($line);
	726	}
	727	if ((ord($line[0]) > 32) \|\| (strlen($line[0]) == 0)){
	728	list($field, $string) = iil_SplitHeaderLine($str);
	729	if (strcasecmp($field, "date")==0){
	730	$result[$id]=iil_StrToTime($string);
	731	}else{
	732	$result[$id] = str_replace("\"", "", $string);
	733	if ($normalize) $result[$id]=strtoupper($result[$id]);
	734	}
	735	$str=$line;
	736	}
	737	}
	738	}
	739	}
	740	/*
	741	$end_pos = strlen($line)-1;
	742	if (($line[0]=="*") && ($a[2]=="FETCH") && ($line[$end_pos]=="}")){
	743	$id = $a[1];
	744	$pos = strrpos($line, "{")+1;
	745	$bytes = (int)substr($line, $pos, $end_pos-$pos);
	746	$received = 0;
	747	do{
	748	$line = iil_ReadLine($fp, 0);
	749	$received+=strlen($line);
	750	$line = chop($line);
	751
	752	if ($received>$bytes) break;
	753	else if (!$line) continue;
	754
	755	list($field,$string)=explode(": ", $line);
	756
	757	if (strcasecmp($field, "date")==0)
	758	$result[$id] = iil_StrToTime($string);
	759	else if ($index_field!="DATE")
	760	$result[$id]=strtoupper(str_replace("\"", "", $string));
	761	}while($line[0]!=")");
	762	}else{
	763	//one line response, not expected so ignore
	764	}
	765	*/
	766	}while(!iil_StartsWith($line, $key));
	767	}else if ($mode==6){
	768	$key="fhi".($c++);
	769	$request = $key." FETCH $message_set (INTERNALDATE)\r\n";
	770	if (!fputs($fp, $request)) return false;
	771	do{
	772	$line=chop(iil_ReadLine($fp, 200));
	773	if ($line[0]=="*"){
	774	//original: "* 10 FETCH (INTERNALDATE "31-Jul-2002 09:18:02 -0500")"
	775	$paren_pos = strpos($line, "(");
	776	$foo = substr($line, 0, $paren_pos);
	777	$a = explode(" ", $foo);
	778	$id = $a[1];
	779
	780	$open_pos = strpos($line, "\"") + 1;
	781	$close_pos = strrpos($line, "\"");
	782	if ($open_pos && $close_pos){
	783	$len = $close_pos - $open_pos;
	784	$time_str = substr($line, $open_pos, $len);
	785	$result[$id] = strtotime($time_str);
	786	}
	787	}else{
	788	$a = explode(" ", $line);
	789	}
	790	}while(!iil_StartsWith($a[0], $key));
	791	}else{
	792	if ($mode >= 3) $field_name="FLAGS";
	793	else if ($index_field=="SIZE") $field_name="RFC822.SIZE";
	794	else $field_name=$index_field;
	795
	796	/* FETCH uid, size, flags */
	797	$key="fhi".($c++);
	798	$request=$key." FETCH $message_set ($field_name)\r\n";
	799
	800	if (!fputs($fp, $request)) return false;
	801	do{
	802	$line=chop(iil_ReadLine($fp, 200));
	803	$a = explode(" ", $line);
	804	if (($line[0]=="*") && ($a[2]=="FETCH")){
	805	$line=str_replace("(", "", $line);
	806	$line=str_replace(")", "", $line);
	807	$a=explode(" ", $line);
	808
	809	$id=$a[1];
	810
	811	if (isset($result[$id])) continue; //if we already got the data, skip forward
	812	if ($a[3]!=$field_name) continue; //make sure it's returning what we requested
	813
	814	/* Caution, bad assumptions, next several lines */
	815	if ($mode==2) $result[$id]=$a[4];
	816	else{
	817	$haystack=strtoupper($line);
	818	$result[$id]=(strpos($haystack, $index_field) > 0 ? "F" : "N");
	819	}
	820	}
	821	}while(!iil_StartsWith($line, $key));
	822	}
	823
	824	//check number of elements...
	825	list($start_mid,$end_mid)=explode(':',$message_set);
	826	if (is_numeric($start_mid) && is_numeric($end_mid)){
	827	//count how many we should have
	828	$should_have = $end_mid - $start_mid +1;
	829
	830	//if we have less, try and fill in the "gaps"
	831	if (count($result)<$should_have){
	832	for($i=$start_mid;$i<=$end_mid;$i++) if (!isset($result[$i])) $result[$i] = '';
	833	}
	834	}
	835
	836	return $result;
	837
	838	}
	839
	840	function iil_CompressMessageSet($message_set){
	841	//given a comma delimited list of independent mid's,
	842	//compresses by grouping sequences together
	843
	844	//if less than 255 bytes long, let's not bother
	845	if (strlen($message_set)<255) return $message_set;
	846
	847	//see if it's already been compress
	848	if (strpos($message_set,':')!==false) return $message_set;
	849
	850	//separate, then sort
	851	$ids = explode(',',$message_set);
	852	sort($ids);
	853
	854	$result = array();
	855	$start = $prev = $ids[0];
	856	foreach($ids as $id){
	857	$incr = $id - $prev;
	858	if ($incr>1){ //found a gap
	859	if ($start==$prev) $result[] = $prev; //push single id
	860	else $result[] = $start.':'.$prev; //push sequence as start_id:end_id
	861	$start = $id; //start of new sequence
	862	}
	863	$prev = $id;
	864	}
	865	//handle the last sequence/id
	866	if ($start==$prev) $result[] = $prev;
	867	else $result[] = $start.':'.$prev;
	868
	869	//return as comma separated string
	870	return implode(',',$result);
	871	}
	872
	873	function iil_C_UIDsToMIDs(&$conn, $mailbox, $uids){
	874	if (!is_array($uids) \|\| count($uids)==0) return array();
	875	return iil_C_Search($conn, $mailbox, "UID ".implode(",", $uids));
	876	}
	877
	878	function iil_C_UIDToMID(&$conn, $mailbox, $uid){
	879	$result = iil_C_UIDsToMIDs($conn, $mailbox, array($uid));
	880	if (count($result)==1) return $result[0];
	881	else return false;
	882	}
	883
	884	function iil_C_FetchUIDs(&$conn,$mailbox){
	885	global $clock;
	886
30233b	887	$num = iil_C_CountMessages($conn, $mailbox);
4e17e6	888	if ($num==0) return array();
T	889	$message_set = '1'.($num>1?':'.$num:'');
	890
	891	//if cache not enabled, just call iil_C_FetchHeaderIndex on 'UID' field
	892	if (!$conn->do_cache)
	893	return iil_C_FetchHeaderIndex($conn, $mailbox, $message_set, 'UID');
	894
	895	//otherwise, let's check cache first
	896	$key = $mailbox.'.uids';
	897	$cache_good = true;
	898	if ($conn->uid_cache) $data = $conn->uid_cache;
	899	else $data = cache_read($conn->user, $conn->host, $key);
	900
	901	//was anything cached at all?
	902	if ($data===false) $cache_good = -1;
	903
	904	//make sure number of messages were the same
	905	if ($cache_good>0 && $data['n']!=$num) $cache_good = -2;
	906
	907	//if everything's okay so far...
	908	if ($cache_good>0){
	909	//check UIDs of highest mid with current and cached
	910	$temp = iil_C_Search($conn, $mailbox, 'UID '.$data['d'][$num]);
	911	if (!$temp \|\| !is_array($temp) \|\| $temp[0]!=$num) $cache_good=-3;
	912	}
	913
	914	//if cached data's good, return it
	915	if ($cache_good>0){
	916	return $data['d'];
	917	}
	918
	919	//otherwise, we need to fetch it
	920	$data = array('n'=>$num,'d'=>array());
	921	$data['d'] = iil_C_FetchHeaderIndex($conn, $mailbox, $message_set, 'UID');
	922	cache_write($conn->user, $conn->host, $key, $data);
	923	$conn->uid_cache = $data;
	924	return $data['d'];
	925	}
	926
	927	function iil_SortThreadHeaders($headers, $index_a, $uids){
	928	asort($index_a);
	929	$result = array();
	930	foreach($index_a as $mid=>$foobar){
	931	$uid = $uids[$mid];
	932	$result[$uid] = $headers[$uid];
	933	}
	934	return $result;
	935	}
	936
	937	function iil_C_FetchThreadHeaders(&$conn, $mailbox, $message_set){
	938	global $clock;
	939	global $index_a;
	940
24053e	941	list($from_idx, $to_idx) = explode(':', $message_set);
T	942	if (empty($message_set) \|\| (isset($to_idx) && (int)$from_idx > (int)$to_idx))
	943	return false;
4e17e6	944
T	945	$result = array();
	946	$uids = iil_C_FetchUIDs($conn, $mailbox);
	947	$debug = false;
	948
	949	/* Get cached records where possible */
	950	if ($conn->do_cache){
	951	$cached = cache_read($conn->user, $conn->host, $mailbox.'.thhd');
	952	if ($cached && is_array($uids) && count($uids)>0){
	953	$needed_set = "";
	954	foreach($uids as $id=>$uid){
	955	if ($cached[$uid]){
	956	$result[$uid] = $cached[$uid];
	957	$result[$uid]->id = $id;
	958	}else $needed_set.=($needed_set?",":"").$id;
	959	}
	960	if ($needed_set) $message_set = $needed_set;
	961	else $message_set = '';
	962	}
	963	}
	964	$message_set = iil_CompressMessageSet($message_set);
	965	if ($debug) echo "Still need: ".$message_set;
	966
	967	/* if we're missing any, get them */
	968	if ($message_set){
	969	/* FETCH date,from,subject headers */
	970	$key="fh";
	971	$fp = $conn->fp;
	972	$request=$key." FETCH $message_set (BODY.PEEK[HEADER.FIELDS (SUBJECT MESSAGE-ID IN-REPLY-TO)])\r\n";
	973	$mid_to_id = array();
	974	if (!fputs($fp, $request)) return false;
	975	do{
	976	$line = chop(iil_ReadLine($fp, 1024));
	977	if ($debug) echo $line."\n";
	978	if (ereg('\{[0-9]+\}$', $line)){
	979	$a = explode(" ", $line);
	980	$new = array();
	981
	982	$new_thhd = new iilThreadHeader;
	983	$new_thhd->id = $a[1];
	984	do{
	985	$line=chop(iil_ReadLine($fp, 1024),"\r\n");
	986	if (iil_StartsWithI($line,'Message-ID:') \|\| (iil_StartsWithI($line,'In-Reply-To:')) \|\| (iil_StartsWithI($line,'SUBJECT:'))){
	987	$pos = strpos($line, ":");
	988	$field_name = substr($line, 0, $pos);
	989	$field_val = substr($line, $pos+1);
	990	$new[strtoupper($field_name)] = trim($field_val);
	991	}else if (ereg('^[[:space:]]', $line)){
	992	$new[strtoupper($field_name)].= trim($line);
	993	}
	994	}while($line[0]!=')');
	995	$new_thhd->sbj = $new['SUBJECT'];
	996	$new_thhd->mid = substr($new['MESSAGE-ID'], 1, -1);
	997	$new_thhd->irt = substr($new['IN-REPLY-TO'], 1, -1);
	998
	999	$result[$uids[$new_thhd->id]] = $new_thhd;
	1000	}
	1001	}while(!iil_StartsWith($line, "fh"));
	1002	}
	1003
	1004	/* sort headers */
	1005	if (is_array($index_a)){
	1006	$result = iil_SortThreadHeaders($result, $index_a, $uids);
	1007	}
	1008
	1009	/* write new set to cache */
	1010	if ($conn->do_cache){
	1011	if (count($result)!=count($cached))
	1012	cache_write($conn->user, $conn->host, $mailbox.'.thhd', $result);
	1013	}
	1014
	1015	//echo 'iil_FetchThreadHeaders:'."\n";
	1016	//print_r($result);
	1017
	1018	return $result;
	1019	}
	1020
	1021	function iil_C_BuildThreads2(&$conn, $mailbox, $message_set, &$clock){
	1022	global $index_a;
	1023
24053e	1024	list($from_idx, $to_idx) = explode(':', $message_set);
T	1025	if (empty($message_set) \|\| (isset($to_idx) && (int)$from_idx > (int)$to_idx))
	1026	return false;
4e17e6	1027
T	1028	$result=array();
	1029	$roots=array();
	1030	$root_mids = array();
	1031	$sub_mids = array();
	1032	$strays = array();
	1033	$messages = array();
	1034	$fp = $conn->fp;
	1035	$debug = false;
	1036
	1037	$sbj_filter_pat = '[a-zA-Z]{2,3}(\[[0-9]\])?:([[:space:]])';
	1038
	1039	/* Do "SELECT" command */
	1040	if (!iil_C_Select($conn, $mailbox)) return false;
	1041
	1042	/* FETCH date,from,subject headers */
	1043	$mid_to_id = array();
	1044	$messages = array();
	1045	$headers = iil_C_FetchThreadHeaders($conn, $mailbox, $message_set);
	1046	if ($clock) $clock->register('fetched headers');
	1047
	1048	if ($debug) print_r($headers);
	1049
	1050	/* go through header records */
	1051	foreach($headers as $header){
	1052	//$id = $header['i'];
	1053	//$new = array('id'=>$id, 'MESSAGE-ID'=>$header['m'],
	1054	// 'IN-REPLY-TO'=>$header['r'], 'SUBJECT'=>$header['s']);
	1055	$id = $header->id;
	1056	$new = array('id'=>$id, 'MESSAGE-ID'=>$header->mid,
	1057	'IN-REPLY-TO'=>$header->irt, 'SUBJECT'=>$header->sbj);
	1058
	1059	/* add to message-id -> mid lookup table */
	1060	$mid_to_id[$new['MESSAGE-ID']] = $id;
	1061
	1062	/* if no subject, use message-id */
	1063	if (empty($new['SUBJECT'])) $new['SUBJECT'] = $new['MESSAGE-ID'];
	1064
	1065	/* if subject contains 'RE:' or has in-reply-to header, it's a reply */
	1066	$sbj_pre ='';
	1067	$has_re = false;
	1068	if (eregi($sbj_filter_pat, $new['SUBJECT'])) $has_re = true;
	1069	if ($has_re\|\|$new['IN-REPLY-TO']) $sbj_pre = 'RE:';
	1070
	1071	/* strip out 're:', 'fw:' etc */
	1072	if ($has_re) $sbj = ereg_replace($sbj_filter_pat,'', $new['SUBJECT']);
	1073	else $sbj = $new['SUBJECT'];
	1074	$new['SUBJECT'] = $sbj_pre.$sbj;
	1075
	1076
	1077	/* if subject not a known thread-root, add to list */
	1078	if ($debug) echo $id.' '.$new['SUBJECT']."\t".$new['MESSAGE-ID']."\n";
	1079	$root_id = $roots[$sbj];
	1080
	1081	if ($root_id && ($has_re \|\| !$root_in_root[$root_id])){
	1082	if ($debug) echo "\tfound root: $root_id\n";
	1083	$sub_mids[$new['MESSAGE-ID']] = $root_id;
	1084	$result[$root_id][] = $id;
	1085	}else if (!isset($roots[$sbj])\|\|(!$has_re&&$root_in_root[$root_id])){
	1086	/* try to use In-Reply-To header to find root
	1087	unless subject contains 'Re:' */
	1088	if ($has_re&&$new['IN-REPLY-TO']){
	1089	if ($debug) echo "\tlooking: ".$new['IN-REPLY-TO']."\n";
	1090
	1091	//reply to known message?
	1092	$temp = $sub_mids[$new['IN-REPLY-TO']];
	1093
	1094	if ($temp){
	1095	//found it, root:=parent's root
	1096	if ($debug) echo "\tfound parent: ".$new['SUBJECT']."\n";
	1097	$result[$temp][] = $id;
	1098	$sub_mids[$new['MESSAGE-ID']] = $temp;
	1099	$sbj = '';
	1100	}else{
	1101	//if we can't find referenced parent, it's a "stray"
	1102	$strays[$id] = $new['IN-REPLY-TO'];
	1103	}
	1104	}
	1105
	1106	//add subject as root
	1107	if ($sbj){
	1108	if ($debug) echo "\t added to root\n";
	1109	$roots[$sbj] = $id;
	1110	$root_in_root[$id] = !$has_re;
	1111	$sub_mids[$new['MESSAGE-ID']] = $id;
	1112	$result[$id] = array($id);
	1113	}
	1114	if ($debug) echo $new['MESSAGE-ID']."\t".$sbj."\n";
	1115	}
	1116
	1117	}
	1118
	1119	//now that we've gone through all the messages,
	1120	//go back and try and link up the stray threads
	1121	if (count($strays)>0){
	1122	foreach($strays as $id=>$irt){
	1123	$root_id = $sub_mids[$irt];
	1124	if (!$root_id \|\| $root_id==$id) continue;
	1125	$result[$root_id] = array_merge($result[$root_id],$result[$id]);
	1126	unset($result[$id]);
	1127	}
	1128	}
	1129
	1130	if ($clock) $clock->register('data prepped');
	1131
	1132	if ($debug) print_r($roots);
	1133	//print_r($result);
	1134	return $result;
	1135	}
	1136
	1137
	1138	function iil_SortThreads(&$tree, $index, $sort_order='ASC'){
	1139	if (!is_array($tree) \|\| !is_array($index)) return false;
	1140
	1141	//create an id to position lookup table
	1142	$i = 0;
	1143	foreach($index as $id=>$val){
	1144	$i++;
	1145	$index[$id] = $i;
	1146	}
	1147	$max = $i+1;
	1148
	1149	//for each tree, set array key to position
	1150	$itree = array();
	1151	foreach($tree as $id=>$node){
	1152	if (count($tree[$id])<=1){
	1153	//for "threads" with only one message, key is position of that message
	1154	$n = $index[$id];
	1155	$itree[$n] = array($n=>$id);
	1156	}else{
	1157	//for "threads" with multiple messages,
	1158	$min = $max;
	1159	$new_a = array();
	1160	foreach($tree[$id] as $mid){
	1161	$new_a[$index[$mid]] = $mid; //create new sub-array mapping position to id
	1162	$pos = $index[$mid];
	1163	if ($pos&&$pos<$min) $min = $index[$mid]; //find smallest position
	1164	}
	1165	$n = $min; //smallest position of child is thread position
	1166
	1167	//assign smallest position to root level key
	1168	//set children array to one created above
	1169	ksort($new_a);
	1170	$itree[$n] = $new_a;
	1171	}
	1172	}
	1173
	1174
	1175	//sort by key, this basically sorts all threads
	1176	ksort($itree);
	1177	$i=0;
	1178	$out=array();
	1179	foreach($itree as $k=>$node){
	1180	$out[$i] = $itree[$k];
	1181	$i++;
	1182	}
	1183
	1184	//return
	1185	return $out;
	1186	}
	1187
	1188	function iil_IndexThreads(&$tree){
	1189	/* creates array mapping mid to thread id */
	1190
	1191	if (!is_array($tree)) return false;
	1192
	1193	$t_index = array();
	1194	foreach($tree as $pos=>$kids){
	1195	foreach($kids as $kid) $t_index[$kid] = $pos;
	1196	}
	1197
	1198	return $t_index;
	1199	}
	1200
f7bfec	1201	function iil_C_FetchHeaders(&$conn, $mailbox, $message_set, $uidfetch=false){
4e17e6	1202	global $IMAP_USE_INTERNAL_DATE;
T	1203
	1204	$c=0;
	1205	$result=array();
	1206	$fp = $conn->fp;
	1207
24053e	1208	list($from_idx, $to_idx) = explode(':', $message_set);
T	1209	if (empty($message_set) \|\| (isset($to_idx) && (int)$from_idx > (int)$to_idx))
	1210	return false;
	1211
4e17e6	1212	/* Do "SELECT" command */
T	1213	if (!iil_C_Select($conn, $mailbox)){
	1214	$conn->error = "Couldn't select $mailbox";
	1215	return false;
	1216	}
	1217
	1218	/* Get cached records where possible */
	1219	if ($conn->do_cache){
	1220	$uids = iil_C_FetchHeaderIndex($conn, $mailbox, $message_set, "UID");
	1221	if (is_array($uids) && count($conn->cache[$mailbox]>0)){
	1222	$needed_set = "";
	1223	while(list($id,$uid)=each($uids)){
	1224	if ($conn->cache[$mailbox][$uid]){
	1225	$result[$id] = $conn->cache[$mailbox][$uid];
	1226	$result[$id]->id = $id;
	1227	}else $needed_set.=($needed_set?",":"").$id;
	1228	}
	1229	//echo "<!-- iil_C_FetchHeader\nMessage Set: $message_set\nNeeded Set:$needed_set\n//-->\n";
	1230	if ($needed_set) $message_set = iil_CompressMessageSet($needed_set);
	1231	else return $result;
	1232	}
	1233	}
	1234
	1235	/* FETCH date,from,subject headers */
	1236	$key="fh".($c++);
f7bfec	1237	$prefix=$uidfetch?" UID":"";
T	1238	$request=$key.$prefix." FETCH $message_set (BODY.PEEK[HEADER.FIELDS (DATE FROM TO SUBJECT REPLY-TO IN-REPLY-TO CC BCC CONTENT-TRANSFER-ENCODING CONTENT-TYPE MESSAGE-ID REFERENCE)])\r\n";
4e17e6	1239
T	1240	if (!fputs($fp, $request)) return false;
	1241	do{
	1242	$line=chop(iil_ReadLine($fp, 200));
	1243	$a=explode(" ", $line);
	1244	if (($line[0]=="*") && ($a[2]=="FETCH")){
	1245	$id=$a[1];
	1246	$result[$id]=new iilBasicHeader;
	1247	$result[$id]->id = $id;
	1248	$result[$id]->subject = "";
	1249	/*
	1250	Start parsing headers. The problem is, some header "lines" take up multiple lines.
	1251	So, we'll read ahead, and if the one we're reading now is a valid header, we'll
	1252	process the previous line. Otherwise, we'll keep adding the strings until we come
	1253	to the next valid header line.
	1254	*/
	1255	$i = 0;
	1256	$lines = array();
	1257	do{
	1258	$line = chop(iil_ReadLine($fp, 300),"\r\n");
	1259	if (ord($line[0])<=32) $lines[$i].=(empty($lines[$i])?"":"\n").trim(chop($line));
	1260	else{
	1261	$i++;
	1262	$lines[$i] = trim(chop($line));
	1263	}
b076a4	1264	}while($line[0]!=")" && strncmp($line, $key, strlen($key))); // patch from "Maksim Rubis" <siburny@hotmail.com>
4e17e6	1265
b076a4	1266	if(strncmp($line, $key, strlen($key)))
T	1267	{
4e17e6	1268	//process header, fill iilBasicHeader obj.
T	1269	// initialize
	1270	if (is_array($headers)){
	1271	reset($headers);
	1272	while ( list($k, $bar) = each($headers) ) $headers[$k] = "";
	1273	}
	1274
	1275	// create array with header field:data
	1276	$headers = array();
	1277	while ( list($lines_key, $str) = each($lines) ){
	1278	list($field, $string) = iil_SplitHeaderLine($str);
	1279	$field = strtolower($field);
	1280	$headers[$field] = $string;
	1281	}
	1282	$result[$id]->date = $headers["date"];
	1283	$result[$id]->timestamp = iil_StrToTime($headers["date"]);
	1284	$result[$id]->from = $headers["from"];
	1285	$result[$id]->to = str_replace("\n", " ", $headers["to"]);
	1286	$result[$id]->subject = str_replace("\n", "", $headers["subject"]);
	1287	$result[$id]->replyto = str_replace("\n", " ", $headers["reply-to"]);
	1288	$result[$id]->cc = str_replace("\n", " ", $headers["cc"]);
bde645	1289	$result[$id]->bcc = str_replace("\n", " ", $headers["bcc"]);
4e17e6	1290	$result[$id]->encoding = str_replace("\n", " ", $headers["content-transfer-encoding"]);
T	1291	$result[$id]->ctype = str_replace("\n", " ", $headers["content-type"]);
a95e0e	1292	$result[$id]->in_reply_to = ereg_replace("[\n<>]",'', $headers['in-reply-to']);
f88d41	1293	$result[$id]->reference = $headers["reference"];
a95e0e	1294
T	1295	list($result[$id]->ctype, $ctype_add) = explode(";", $headers["content-type"]);
	1296
	1297	if (preg_match('/charset="?([a-z0-9\-]+)"?/i', $ctype_add, $regs))
	1298	$result[$id]->charset = $regs[1];
	1299
4e17e6	1300	$messageID = $headers["message-id"];
f88d41	1301	if (!$messageID) "mid:".$id;
4e17e6	1302	$result[$id]->messageID = $messageID;
b076a4	1303	}
T	1304	else {
	1305	$a=explode(" ", $line);
	1306	}
4e17e6	1307
T	1308	}
	1309	}while(strcmp($a[0], $key)!=0);
	1310
	1311	/*
	1312	FETCH uid, size, flags
	1313	Sample reply line: "* 3 FETCH (UID 2417 RFC822.SIZE 2730 FLAGS (\Seen \Deleted))"
	1314	*/
	1315	$command_key="fh".($c++);
f7bfec	1316	$request= $command_key.$prefix." FETCH $message_set (UID RFC822.SIZE FLAGS INTERNALDATE)\r\n";
4e17e6	1317	if (!fputs($fp, $request)) return false;
T	1318	do{
	1319	$line=chop(iil_ReadLine($fp, 200));
	1320	//$a = explode(" ", $line);
	1321	//if (($line[0]=="*") && ($a[2]=="FETCH")){
	1322	if ($line[0]=="*"){
	1323	//echo "<!-- $line //-->\n";
	1324	//get outter most parens
	1325	$open_pos = strpos($line, "(") + 1;
	1326	$close_pos = strrpos($line, ")");
	1327	if ($open_pos && $close_pos){
	1328	//extract ID from pre-paren
	1329	$pre_str = substr($line, 0, $open_pos);
	1330	$pre_a = explode(" ", $line);
	1331	$id = $pre_a[1];
	1332
	1333	//get data
	1334	$len = $close_pos - $open_pos;
	1335	$str = substr($line, $open_pos, $len);
	1336
	1337	//swap parents with quotes, then explode
	1338	$str = eregi_replace("[()]", "\"", $str);
	1339	$a = iil_ExplodeQuotedString(" ", $str);
	1340
	1341	//did we get the right number of replies?
	1342	$parts_count = count($a);
	1343	if ($parts_count>=8){
	1344	for ($i=0;$i<$parts_count;$i=$i+2){
	1345	if (strcasecmp($a[$i],"UID")==0) $result[$id]->uid=$a[$i+1];
	1346	else if (strcasecmp($a[$i],"RFC822.SIZE")==0) $result[$id]->size=$a[$i+1];
	1347	else if (strcasecmp($a[$i],"INTERNALDATE")==0) $time_str = $a[$i+1];
	1348	else if (strcasecmp($a[$i],"FLAGS")==0) $flags_str = $a[$i+1];
	1349	}
	1350
	1351	// process flags
	1352	$flags_str = eregi_replace('[\\\"]', "", $flags_str);
	1353	$flags_a = explode(" ", $flags_str);
	1354	//echo "<!-- ID: $id FLAGS: ".implode(",", $flags_a)." //-->\n";
	1355
	1356	$result[$id]->seen = false;
	1357	$result[$id]->recent = false;
	1358	$result[$id]->deleted = false;
	1359	$result[$id]->answered = false;
	1360	if (is_array($flags_a)){
	1361	reset($flags_a);
	1362	while (list($key,$val)=each($flags_a)){
	1363	if (strcasecmp($val,"Seen")==0) $result[$id]->seen = true;
	1364	else if (strcasecmp($val, "Deleted")==0) $result[$id]->deleted=true;
	1365	else if (strcasecmp($val, "Recent")==0) $result[$id]->recent = true;
	1366	else if (strcasecmp($val, "Answered")==0) $result[$id]->answered = true;
	1367	}
	1368	$result[$id]->flags=$flags_str;
	1369	}
	1370
	1371	// if time is gmt...
	1372	$time_str = str_replace('GMT','+0000',$time_str);
	1373
	1374	//get timezone
	1375	$time_str = substr($time_str, 0, -1);
	1376	$time_zone_str = substr($time_str, -5); //extract timezone
	1377	$time_str = substr($time_str, 1, -6); //remove quotes
	1378	$time_zone = (float)substr($time_zone_str, 1, 2); //get first two digits
	1379	if ($time_zone_str[3]!='0') $time_zone += 0.5; //handle half hour offset
	1380	if ($time_zone_str[0]=="-") $time_zone = $time_zone * -1.0; //minus?
	1381	$result[$id]->internaldate = $time_str;
	1382
	1383	if ($IMAP_USE_INTERNAL_DATE){
	1384	//calculate timestamp
	1385	$timestamp = strtotime($time_str); //return's server's time
	1386	$na_timestamp = $timestamp;
	1387	$timestamp -= $time_zone * 3600; //compensate for tz, get GMT
	1388	$result[$id]->timestamp = $timestamp;
	1389	}
	1390
	1391	if ($conn->do_cache){
	1392	$uid = $result[$id]->uid;
	1393	$conn->cache[$mailbox][$uid] = $result[$id];
	1394	$conn->cache_dirty[$mailbox] = true;
	1395	}
	1396	//echo "<!-- ID: $id : $time_str -- local: $na_timestamp (".date("F j, Y, g:i a", $na_timestamp).") tz: $time_zone -- GMT: ".$timestamp." (".date("F j, Y, g:i a", $timestamp).") //-->\n";
	1397	}else{
	1398	//echo "<!-- ERROR: $id : $str //-->\n";
	1399	}
	1400	}
	1401	}
	1402	}while(strpos($line, $command_key)===false);
	1403
	1404	return $result;
	1405	}
	1406
	1407
f7bfec	1408	function iil_C_FetchHeader(&$conn, $mailbox, $id, $uidfetch=false){
4e17e6	1409	$fp = $conn->fp;
f7bfec	1410	$a=iil_C_FetchHeaders($conn, $mailbox, $id, $uidfetch);
T	1411	if (is_array($a)) return array_shift($a);
4e17e6	1412	else return false;
T	1413	}
	1414
	1415
	1416	function iil_SortHeaders($a, $field, $flag){
	1417	if (empty($field)) $field="uid";
	1418	$field=strtolower($field);
	1419	if ($field=="date"\|\|$field=='internaldate') $field="timestamp";
	1420	if (empty($flag)) $flag="ASC";
	1421	$flag=strtoupper($flag);
b076a4	1422	$stripArr = ($field=='subject') ? array('Re: ','Fwd: ','Fw: ',"\"") : array("\"");
4647e1	1423
4e17e6	1424	$c=count($a);
T	1425	if ($c>0){
	1426	/*
	1427	Strategy:
	1428	First, we'll create an "index" array.
	1429	Then, we'll use sort() on that array,
	1430	and use that to sort the main array.
	1431	*/
	1432
3062b3	1433	// create "index" array
4e17e6	1434	$index=array();
T	1435	reset($a);
	1436	while (list($key, $val)=each($a)){
4647e1	1437
0d361b	1438	if ($field=="timestamp"){
T	1439	$data = @strtotime($val->date);
	1440	if ($data == false)
	1441	$data = $val->timestamp;
	1442	}
	1443	else {
	1444	$data = $val->$field;
	1445	if (is_string($data))
	1446	$data=strtoupper(str_replace($stripArr, "", $data));
	1447	}
4647e1	1448
4e17e6	1449	$index[$key]=$data;
T	1450	}
	1451
	1452	// sort index
	1453	$i=0;
	1454	if ($flag=="ASC") asort($index);
	1455	else arsort($index);
	1456
	1457	// form new array based on index
	1458	$result=array();
	1459	reset($index);
	1460	while (list($key, $val)=each($index)){
9fee0e	1461	$result[$key]=$a[$key];
4e17e6	1462	$i++;
T	1463	}
	1464	}
	1465
	1466	return $result;
	1467	}
	1468
	1469	function iil_C_Expunge(&$conn, $mailbox){
	1470	$fp = $conn->fp;
	1471	if (iil_C_Select($conn, $mailbox)){
	1472	$c=0;
	1473	fputs($fp, "exp1 EXPUNGE\r\n");
	1474	do{
	1475	$line=chop(iil_ReadLine($fp, 100));
	1476	if ($line[0]=="*") $c++;
	1477	}while (!iil_StartsWith($line, "exp1"));
	1478
	1479	if (iil_ParseResult($line) == 0){
	1480	$conn->selected = ""; //state has changed, need to reselect
	1481	//$conn->exists-=$c;
	1482	return $c;
	1483	}else{
	1484	$conn->error = $line;
	1485	return -1;
	1486	}
	1487	}
	1488
	1489	return -1;
	1490	}
	1491
	1492	function iil_C_ModFlag(&$conn, $mailbox, $messages, $flag, $mod){
	1493	if ($mod!="+" && $mod!="-") return -1;
	1494
	1495	$fp = $conn->fp;
	1496	$flags=array(
	1497	"SEEN"=>"\\Seen",
	1498	"DELETED"=>"\\Deleted",
	1499	"RECENT"=>"\\Recent",
	1500	"ANSWERED"=>"\\Answered",
	1501	"DRAFT"=>"\\Draft",
	1502	"FLAGGED"=>"\\Flagged"
	1503	);
	1504	$flag=strtoupper($flag);
	1505	$flag=$flags[$flag];
	1506	if (iil_C_Select($conn, $mailbox)){
	1507	$c=0;
	1508	fputs($fp, "flg STORE $messages ".$mod."FLAGS (".$flag.")\r\n");
	1509	do{
	1510	$line=chop(iil_ReadLine($fp, 100));
	1511	if ($line[0]=="*") $c++;
	1512	}while (!iil_StartsWith($line, "flg"));
520c36	1513
4e17e6	1514	if (iil_ParseResult($line) == 0){
T	1515	iil_C_ExpireCachedItems($conn, $mailbox, $messages);
	1516	return $c;
	1517	}else{
	1518	$conn->error = $line;
	1519	return -1;
	1520	}
	1521	}else{
	1522	$conn->error = "Select failed";
	1523	return -1;
	1524	}
	1525	}
	1526
	1527	function iil_C_Flag(&$conn, $mailbox, $messages, $flag){
	1528	return iil_C_ModFlag($conn, $mailbox, $messages, $flag, "+");
	1529	}
	1530
	1531	function iil_C_Unflag(&$conn, $mailbox, $messages, $flag){
	1532	return iil_C_ModFlag($conn, $mailbox, $messages, $flag, "-");
	1533	}
	1534
	1535	function iil_C_Delete(&$conn, $mailbox, $messages){
	1536	return iil_C_ModFlag($conn, $mailbox, $messages, "DELETED", "+");
	1537	}
	1538
	1539	function iil_C_Undelete(&$conn, $mailbox, $messages){
	1540	return iil_C_ModFlag($conn, $mailbox, $messages, "DELETED", "-");
	1541	}
	1542
	1543
	1544	function iil_C_Unseen(&$conn, $mailbox, $messages){
	1545	return iil_C_ModFlag($conn, $mailbox, $messages, "SEEN", "-");
	1546	}
	1547
	1548
	1549	function iil_C_Copy(&$conn, $messages, $from, $to){
	1550	$fp = $conn->fp;
	1551
	1552	if (empty($from) \|\| empty($to)) return -1;
	1553
	1554	if (iil_C_Select($conn, $from)){
	1555	$c=0;
	1556
	1557	fputs($fp, "cpy1 COPY $messages \"$to\"\r\n");
	1558	$line=iil_ReadReply($fp);
	1559	return iil_ParseResult($line);
	1560	}else{
	1561	return -1;
	1562	}
	1563	}
	1564
	1565	function iil_FormatSearchDate($month, $day, $year){
	1566	$month = (int)$month;
	1567	$months=array(
	1568	1=>"Jan", 2=>"Feb", 3=>"Mar", 4=>"Apr",
	1569	5=>"May", 6=>"Jun", 7=>"Jul", 8=>"Aug",
	1570	9=>"Sep", 10=>"Oct", 11=>"Nov", 12=>"Dec"
	1571	);
	1572	return $day."-".$months[$month]."-".$year;
	1573	}
	1574
	1575	function iil_C_CountUnseen(&$conn, $folder){
	1576	$index = iil_C_Search($conn, $folder, "ALL UNSEEN");
	1577	if (is_array($index)){
	1578	$str = implode(",", $index);
	1579	if (empty($str)) return false;
	1580	else return count($index);
	1581	}else return false;
	1582	}
	1583
	1584	function iil_C_UID2ID(&$conn, $folder, $uid){
	1585	if ($uid > 0){
	1586	$id_a = iil_C_Search($conn, $folder, "UID $uid");
	1587	if (is_array($id_a)){
	1588	$count = count($id_a);
	1589	if ($count > 1) return false;
	1590	else return $id_a[0];
	1591	}
	1592	}
	1593	return false;
	1594	}
	1595
e6f360	1596	function iil_C_ID2UID(&$conn, $folder, $id){
T	1597	$fp = $conn->fp;
	1598	$result=-1;
	1599	if ($id > 0) {
	1600	if (iil_C_Select($conn, $folder)){
	1601	$key = "FUID";
	1602	if (fputs($fp, "$key FETCH $id (UID)\r\n")){
	1603	do{
	1604	$line=chop(iil_ReadLine($fp, 1024));
	1605	if (eregi("^\* $id FETCH $UID (.*)$", $line, $r)){
	1606	$result = $r[1];
	1607	}
	1608	} while (!preg_match("/^$key/", $line));
	1609	}
	1610	}
	1611	}
	1612	return $result;
	1613	}
	1614
4e17e6	1615	function iil_C_Search(&$conn, $folder, $criteria){
T	1616	$fp = $conn->fp;
	1617	if (iil_C_Select($conn, $folder)){
	1618	$c=0;
	1619
	1620	$query = "srch1 SEARCH ".chop($criteria)."\r\n";
	1621	fputs($fp, $query);
	1622	do{
	1623	$line=trim(chop(iil_ReadLine($fp, 10000)));
	1624	if (eregi("^\* SEARCH", $line)){
	1625	$str = trim(substr($line, 8));
	1626	$messages = explode(" ", $str);
	1627	}
	1628	}while(!iil_StartsWith($line, "srch1"));
	1629
	1630	$result_code=iil_ParseResult($line);
	1631	if ($result_code==0) return $messages;
	1632	else{
8c2e58	1633	$conn->error = "iil_C_Search: ".$line."\n";
4e17e6	1634	return false;
T	1635	}
	1636
	1637	}else{
8c2e58	1638	$conn->error = "iil_C_Search: Couldn't select \"$folder\"\n";
4e17e6	1639	return false;
T	1640	}
	1641	}
	1642
	1643	function iil_C_Move(&$conn, $messages, $from, $to){
	1644	$fp = $conn->fp;
	1645
	1646	if (!$from \|\| !$to) return -1;
	1647
	1648	$r=iil_C_Copy($conn, $messages, $from,$to);
	1649	if ($r==0){
	1650	return iil_C_Delete($conn, $from, $messages);
	1651	}else{
	1652	return $r;
	1653	}
	1654	}
	1655
	1656	function iil_C_GetHierarchyDelimiter(&$conn){
	1657	if ($conn->delimiter) return $conn->delimiter;
	1658
	1659	$fp = $conn->fp;
	1660	$delimiter = false;
	1661
	1662	//try (LIST "" ""), should return delimiter (RFC2060 Sec 6.3.8)
	1663	if (!fputs($fp, "ghd LIST \"\" \"\"\r\n")) return false;
	1664	do{
	1665	$line=iil_ReadLine($fp, 500);
	1666	if ($line[0]=="*"){
	1667	$line = rtrim($line);
	1668	$a=iil_ExplodeQuotedString(" ", $line);
	1669	if ($a[0]=="*") $delimiter = str_replace("\"", "", $a[count($a)-2]);
	1670	}
	1671	}while (!iil_StartsWith($line, "ghd"));
	1672
	1673	if (strlen($delimiter)>0) return $delimiter;
	1674
	1675	//if that fails, try namespace extension
	1676	//try to fetch namespace data
	1677	fputs($conn->fp, "ns1 NAMESPACE\r\n");
	1678	do{
	1679	$line = iil_ReadLine($conn->fp, 1024);
	1680	if (iil_StartsWith($line, "* NAMESPACE")){
	1681	$i = 0;
	1682	$data = iil_ParseNamespace2(substr($line,11), $i, 0, 0);
	1683	}
	1684	}while(!iil_StartsWith($line, "ns1"));
	1685
	1686	if (!is_array($data)) return false;
	1687
	1688	//extract user space data (opposed to global/shared space)
	1689	$user_space_data = $data[0];
	1690	if (!is_array($user_space_data)) return false;
	1691
	1692	//get first element
	1693	$first_userspace = $user_space_data[0];
	1694	if (!is_array($first_userspace)) return false;
	1695
	1696	//extract delimiter
	1697	$delimiter = $first_userspace[1];
	1698
	1699	return $delimiter;
	1700	}
	1701
	1702	function iil_C_ListMailboxes(&$conn, $ref, $mailbox){
	1703	global $IGNORE_FOLDERS;
	1704
	1705	$ignore = $IGNORE_FOLDERS[strtolower($conn->host)];
	1706
	1707	$fp = $conn->fp;
	1708	if (empty($mailbox)) $mailbox="*";
	1709	if (empty($ref) && $conn->rootdir) $ref = $conn->rootdir;
	1710
	1711	// send command
	1712	if (!fputs($fp, "lmb LIST \"".$ref."\" \"$mailbox\"\r\n")) return false;
	1713	$i=0;
	1714	// get folder list
	1715	do{
	1716	$line=iil_ReadLine($fp, 500);
	1717	$line=iil_MultLine($fp, $line);
	1718
	1719	$a = explode(" ", $line);
	1720	if (($line[0]=="*") && ($a[1]=="LIST")){
	1721	$line = rtrim($line);
	1722	// split one line
	1723	$a=iil_ExplodeQuotedString(" ", $line);
	1724	// last string is folder name
	1725	$folder = str_replace("\"", "", $a[count($a)-1]);
	1726	if (empty($ignore) \|\| (!empty($ignore) && !eregi($ignore, $folder))) $folders[$i] = $folder;
	1727	// second from last is delimiter
	1728	$delim = str_replace("\"", "", $a[count($a)-2]);
	1729	// is it a container?
	1730	$i++;
	1731	}
	1732	}while (!iil_StartsWith($line, "lmb"));
	1733
	1734	if (is_array($folders)){
	1735	if (!empty($ref)){
	1736	// if rootdir was specified, make sure it's the first element
	1737	// some IMAP servers (i.e. Courier) won't return it
	1738	if ($ref[strlen($ref)-1]==$delim) $ref = substr($ref, 0, strlen($ref)-1);
	1739	if ($folders[0]!=$ref) array_unshift($folders, $ref);
	1740	}
	1741	return $folders;
	1742	}else if (iil_ParseResult($line)==0){
	1743	return array('INBOX');
	1744	}else{
	1745	$conn->error = $line;
	1746	return false;
	1747	}
	1748	}
	1749
	1750
	1751	function iil_C_ListSubscribed(&$conn, $ref, $mailbox){
	1752	global $IGNORE_FOLDERS;
	1753
	1754	$ignore = $IGNORE_FOLDERS[strtolower($conn->host)];
	1755
	1756	$fp = $conn->fp;
	1757	if (empty($mailbox)) $mailbox = "*";
	1758	if (empty($ref) && $conn->rootdir) $ref = $conn->rootdir;
	1759	$folders = array();
	1760
	1761	// send command
	1762	if (!fputs($fp, "lsb LSUB \"".$ref."\" \"".$mailbox."\"\r\n")){
	1763	$conn->error = "Couldn't send LSUB command\n";
	1764	return false;
	1765	}
	1766	$i=0;
	1767	// get folder list
	1768	do{
	1769	$line=iil_ReadLine($fp, 500);
	1770	$line=iil_MultLine($fp, $line);
	1771	$a = explode(" ", $line);
078adf	1772	if (($line[0]=="*") && ($a[1]=="LSUB" \|\| $a[1]=="LIST")){
4e17e6	1773	$line = rtrim($line);
T	1774	// split one line
	1775	$a=iil_ExplodeQuotedString(" ", $line);
	1776	// last string is folder name
	1777	//$folder = UTF7DecodeString(str_replace("\"", "", $a[count($a)-1]));
	1778	$folder = str_replace("\"", "", $a[count($a)-1]);
	1779	if ((!in_array($folder, $folders)) && (empty($ignore) \|\| (!empty($ignore) && !eregi($ignore, $folder)))) $folders[$i] = $folder;
	1780	// second from last is delimiter
	1781	$delim = str_replace("\"", "", $a[count($a)-2]);
	1782	// is it a container?
	1783	$i++;
	1784	}
	1785	}while (!iil_StartsWith($line, "lsb"));
	1786
	1787	if (is_array($folders)){
	1788	if (!empty($ref)){
	1789	// if rootdir was specified, make sure it's the first element
	1790	// some IMAP servers (i.e. Courier) won't return it
	1791	if ($ref[strlen($ref)-1]==$delim) $ref = substr($ref, 0, strlen($ref)-1);
	1792	if ($folders[0]!=$ref) array_unshift($folders, $ref);
	1793	}
	1794	return $folders;
	1795	}else{
	1796	$conn->error = $line;
	1797	return false;
	1798	}
	1799	}
	1800
	1801
	1802	function iil_C_Subscribe(&$conn, $folder){
	1803	$fp = $conn->fp;
	1804
	1805	$query = "sub1 SUBSCRIBE \"".$folder."\"\r\n";
	1806	fputs($fp, $query);
	1807	$line=trim(chop(iil_ReadLine($fp, 10000)));
	1808	return iil_ParseResult($line);
	1809	}
	1810
	1811
	1812	function iil_C_UnSubscribe(&$conn, $folder){
	1813	$fp = $conn->fp;
	1814
	1815	$query = "usub1 UNSUBSCRIBE \"".$folder."\"\r\n";
	1816	fputs($fp, $query);
	1817	$line=trim(chop(iil_ReadLine($fp, 10000)));
	1818	return iil_ParseResult($line);
	1819	}
	1820
	1821
	1822	function iil_C_FetchPartHeader(&$conn, $mailbox, $id, $part){
	1823	$fp = $conn->fp;
	1824	$result=false;
	1825	if (($part==0)\|\|(empty($part))) $part="HEADER";
	1826	else $part.=".MIME";
	1827
	1828	if (iil_C_Select($conn, $mailbox)){
	1829	$key="fh".($c++);
	1830	$request=$key." FETCH $id (BODY.PEEK[$part])\r\n";
	1831	if (!fputs($fp, $request)) return false;
	1832	do{
	1833	$line=chop(iil_ReadLine($fp, 200));
	1834	$a=explode(" ", $line);
	1835	if (($line[0]=="*") && ($a[2]=="FETCH") && ($line[strlen($line)-1]!=")")){
	1836	$line=iil_ReadLine($fp, 300);
	1837	while(chop($line)!=")"){
	1838	$result.=$line;
	1839	$line=iil_ReadLine($fp, 300);
	1840	}
	1841	}
	1842	}while(strcmp($a[0], $key)!=0);
	1843	}
	1844
	1845	return $result;
	1846	}
	1847
	1848
	1849	function iil_C_HandlePartBody(&$conn, $mailbox, $id, $part, $mode){
	1850	/* modes:
	1851	1: return string
	1852	2: print
	1853	3: base64 and print
	1854	*/
	1855	$fp = $conn->fp;
	1856	$result=false;
	1857	if (($part==0)\|\|(empty($part))) $part="TEXT";
	1858
	1859	if (iil_C_Select($conn, $mailbox)){
	1860	$reply_key="* ".$id;
	1861	// format request
	1862	$key="ftch".($c++)." ";
	1863	$request=$key."FETCH $id (BODY.PEEK[$part])\r\n";
	1864	// send request
	1865	if (!fputs($fp, $request)) return false;
	1866	// receive reply line
	1867	do{
	1868	$line = chop(iil_ReadLine($fp, 1000));
	1869	$a = explode(" ", $line);
	1870	}while ($a[2]!="FETCH");
	1871	$len = strlen($line);
	1872	if ($line[$len-1] == ")"){
	1873	//one line response, get everything between first and last quotes
	1874	$from = strpos($line, "\"") + 1;
	1875	$to = strrpos($line, "\"");
	1876	$len = $to - $from;
	1877	if ($mode==1) $result = substr($line, $from, $len);
	1878	else if ($mode==2) echo substr($line, $from, $len);
	1879	else if ($mode==3) echo base64_decode(substr($line, $from, $len));
	1880	}else if ($line[$len-1] == "}"){
	1881	//multi-line request, find sizes of content and receive that many bytes
	1882	$from = strpos($line, "{") + 1;
	1883	$to = strrpos($line, "}");
	1884	$len = $to - $from;
	1885	$sizeStr = substr($line, $from, $len);
	1886	$bytes = (int)$sizeStr;
	1887	$received = 0;
	1888	while ($received < $bytes){
	1889	$remaining = $bytes - $received;
	1890	$line = iil_ReadLine($fp, 1024);
	1891	$len = strlen($line);
40ed9b	1892	if ($len > $remaining) $line = substr($line, 0, $remaining);
4e17e6	1893	$received += strlen($line);
T	1894	if ($mode==1) $result .= chop($line)."\n";
	1895	else if ($mode==2){ echo chop($line)."\n"; flush(); }
	1896	else if ($mode==3){ echo base64_decode($line); flush(); }
	1897	}
	1898	}
	1899	// read in anything up until 'til last line
	1900	do{
	1901	$line = iil_ReadLine($fp, 1024);
	1902	}while(!iil_StartsWith($line, $key));
	1903
	1904	if ($result){
	1905	$result = chop($result);
30233b	1906	return $result; // substr($result, 0, strlen($result)-1);
4e17e6	1907	}else return false;
T	1908	}else{
	1909	echo "Select failed.";
	1910	}
	1911
	1912	if ($mode==1) return $result;
	1913	else return $received;
	1914	}
	1915
	1916	function iil_C_FetchPartBody(&$conn, $mailbox, $id, $part){
	1917	return iil_C_HandlePartBody($conn, $mailbox, $id, $part, 1);
	1918	}
	1919
	1920	function iil_C_PrintPartBody(&$conn, $mailbox, $id, $part){
	1921	iil_C_HandlePartBody($conn, $mailbox, $id, $part, 2);
	1922	}
	1923
	1924	function iil_C_PrintBase64Body(&$conn, $mailbox, $id, $part){
	1925	iil_C_HandlePartBody($conn, $mailbox, $id, $part, 3);
	1926	}
	1927
	1928	function iil_C_CreateFolder(&$conn, $folder){
	1929	$fp = $conn->fp;
	1930	if (fputs($fp, "c CREATE \"".$folder."\"\r\n")){
	1931	do{
	1932	$line=iil_ReadLine($fp, 300);
	1933	}while($line[0]!="c");
	1934	$conn->error = $line;
	1935	return (iil_ParseResult($line)==0);
	1936	}else{
	1937	return false;
	1938	}
	1939	}
	1940
	1941	function iil_C_RenameFolder(&$conn, $from, $to){
	1942	$fp = $conn->fp;
	1943	if (fputs($fp, "r RENAME \"".$from."\" \"".$to."\"\r\n")){
	1944	do{
	1945	$line=iil_ReadLine($fp, 300);
	1946	}while($line[0]!="r");
	1947	return (iil_ParseResult($line)==0);
	1948	}else{
	1949	return false;
	1950	}
	1951	}
	1952
	1953	function iil_C_DeleteFolder(&$conn, $folder){
	1954	$fp = $conn->fp;
	1955	if (fputs($fp, "d DELETE \"".$folder."\"\r\n")){
	1956	do{
	1957	$line=iil_ReadLine($fp, 300);
	1958	}while($line[0]!="d");
	1959	return (iil_ParseResult($line)==0);
	1960	}else{
	1961	$conn->error = "Couldn't send command\n";
	1962	return false;
	1963	}
	1964	}
	1965
e0ed97	1966	function iil_C_Append(&$conn, $folder, &$message){
4e17e6	1967	if (!$folder) return false;
T	1968	$fp = $conn->fp;
	1969
	1970	$message = str_replace("\r", "", $message);
	1971	$message = str_replace("\n", "\r\n", $message);
	1972
	1973	$len = strlen($message);
	1974	if (!$len) return false;
	1975
	1976	$request="A APPEND \"".$folder."\" (\\Seen) {".$len."}\r\n";
	1977	if (fputs($fp, $request)){
0284c2	1978	$line=iil_ReadLine($fp, 100);
4e17e6	1979	$sent = fwrite($fp, $message."\r\n");
T	1980	flush();
	1981	do{
	1982	$line=iil_ReadLine($fp, 1000);
	1983	}while($line[0]!="A");
	1984
	1985	$result = (iil_ParseResult($line)==0);
8c2e58	1986	if (!$result) $conn->error .= $line."\n";
4e17e6	1987	return $result;
T	1988
	1989	}else{
8c2e58	1990	$conn->error .= "Couldn't send command \"$request\"\n";
4e17e6	1991	return false;
T	1992	}
	1993	}
	1994
	1995
	1996	function iil_C_AppendFromFile(&$conn, $folder, $path){
	1997	if (!$folder) return false;
	1998
	1999	//open message file
	2000	$in_fp = false;
	2001	if (file_exists(realpath($path))) $in_fp = fopen($path, "r");
	2002	if (!$in_fp){
8c2e58	2003	$conn->error .= "Couldn't open $path for reading\n";
4e17e6	2004	return false;
T	2005	}
	2006
	2007	$fp = $conn->fp;
	2008	$len = filesize($path);
	2009	if (!$len) return false;
	2010
	2011	//send APPEND command
	2012	$request="A APPEND \"".$folder."\" (\\Seen) {".$len."}\r\n";
	2013	$bytes_sent = 0;
	2014	if (fputs($fp, $request)){
	2015	$line=iil_ReadLine($fp, 100);
	2016
	2017	//send file
	2018	while(!feof($in_fp)){
	2019	$buffer = fgets($in_fp, 4096);
	2020	$bytes_sent += strlen($buffer);
	2021	fputs($fp, $buffer);
	2022	}
	2023	fclose($in_fp);
	2024
	2025	fputs($fp, "\r\n");
	2026
	2027	//read response
	2028	do{
	2029	$line=iil_ReadLine($fp, 1000);
	2030	}while($line[0]!="A");
	2031
	2032	$result = (iil_ParseResult($line)==0);
8c2e58	2033	if (!$result) $conn->error .= $line."\n";
4e17e6	2034	return $result;
T	2035
	2036	}else{
8c2e58	2037	$conn->error .= "Couldn't send command \"$request\"\n";
4e17e6	2038	return false;
T	2039	}
	2040	}
	2041
	2042
	2043	function iil_C_FetchStructureString(&$conn, $folder, $id){
	2044	$fp = $conn->fp;
	2045	$result=false;
	2046	if (iil_C_Select($conn, $folder)){
	2047	$key = "F1247";
	2048	if (fputs($fp, "$key FETCH $id (BODYSTRUCTURE)\r\n")){
	2049	do{
	2050	$line=chop(iil_ReadLine($fp, 5000));
	2051	if ($line[0]=="*"){
	2052	if (ereg("\}$", $line)){
	2053	preg_match('/(.+)\{([0-9]+)\}/', $line, $match);
	2054	$result = $match[1];
	2055	do{
	2056	$line = chop(iil_ReadLine($fp, 100));
	2057	if (!preg_match("/^$key/", $line)) $result .= $line;
	2058	else $done = true;
	2059	}while(!$done);
	2060	}else{
	2061	$result = $line;
	2062	}
	2063	list($pre, $post) = explode("BODYSTRUCTURE ", $result);
	2064	$result = substr($post, 0, strlen($post)-1); //truncate last ')' and return
	2065	}
	2066	}while (!preg_match("/^$key/",$line));
	2067	}
	2068	}
	2069	return $result;
	2070	}
	2071
	2072	function iil_C_PrintSource(&$conn, $folder, $id, $part){
	2073	$header = iil_C_FetchPartHeader($conn, $folder, $id, $part);
	2074	//echo str_replace("\r", "", $header);
	2075	echo $header;
	2076	echo iil_C_PrintPartBody($conn, $folder, $id, $part);
	2077	}
	2078
	2079	function iil_C_GetQuota(&$conn){
	2080	/*
	2081	b GETQUOTAROOT "INBOX"
	2082	* QUOTAROOT INBOX user/rchijiiwa1
	2083	* QUOTA user/rchijiiwa1 (STORAGE 654 9765)
	2084	b OK Completed
	2085	*/
	2086	$fp = $conn->fp;
	2087	$result=false;
	2088	$quota_line = "";
	2089
	2090	//get line containing quota info
	2091	if (fputs($fp, "QUOT1 GETQUOTAROOT \"INBOX\"\r\n")){
	2092	do{
	2093	$line=chop(iil_ReadLine($fp, 5000));
	2094	if (iil_StartsWith($line, "* QUOTA ")) $quota_line = $line;
	2095	}while(!iil_StartsWith($line, "QUOT1"));
	2096	}
	2097
	2098	//return false if not found, parse if found
	2099	if (!empty($quota_line)){
	2100	$quota_line = eregi_replace("[()]", "", $quota_line);
	2101	$parts = explode(" ", $quota_line);
	2102	$storage_part = array_search("STORAGE", $parts);
	2103	if ($storage_part>0){
	2104	$result = array();
	2105	$used = $parts[$storage_part+1];
	2106	$total = $parts[$storage_part+2];
	2107	$result["used"] = $used;
	2108	$result["total"] = (empty($total)?"??":$total);
	2109	$result["percent"] = (empty($total)?"??":round(($used/$total)*100));
	2110	$result["free"] = 100 - $result["percent"];
	2111	}
	2112	}
	2113
	2114	return $result;
	2115	}
	2116
	2117
	2118	function iil_C_ClearFolder(&$conn, $folder){
	2119	$num_in_trash = iil_C_CountMessages($conn, $folder);
	2120	if ($num_in_trash > 0) iil_C_Delete($conn, $folder, "1:".$num_in_trash);
	2121	return (iil_C_Expunge($conn, $folder) >= 0);
	2122	}
	2123
25d8ba	2124	?>