githubFork/roundcubemail.git

svncommit

2006-10-22 5c52d06844779efbf4034663f5e68db10619b367

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