githubFork/roundcubemail.git

thomascube

2006-04-04 f3704e18d89e4065cede8509256d7fbf483b7fe6

commit \| author \| age
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)
0284c2	44	- Removed some debuggers (echo ...)
4e17e6	45
T	46	********************************************************/
0284c2	47
4e17e6	48
T	49	// changed path to work within roundcube webmail
	50	include_once("lib/icl_commons.inc");
	51
	52
	53	if (!$IMAP_USE_HEADER_DATE) $IMAP_USE_INTERNAL_DATE = true;
	54	$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);
	55	$IMAP_SERVER_TZ = date('Z');
	56
	57	$iil_error;
	58	$iil_errornum;
	59	$iil_selected;
	60
	61	class iilConnection{
	62	var $fp;
	63	var $error;
	64	var $errorNum;
	65	var $selected;
	66	var $message;
	67	var $host;
	68	var $cache;
	69	var $uid_cache;
	70	var $do_cache;
	71	var $exists;
	72	var $recent;
	73	var $rootdir;
	74	var $delimiter;
f3b659	75	var $capability = array();
4e17e6	76	}
T	77
	78	class iilBasicHeader{
	79	var $id;
	80	var $uid;
	81	var $subject;
	82	var $from;
	83	var $to;
	84	var $cc;
	85	var $replyto;
	86	var $in_reply_to;
	87	var $date;
	88	var $messageID;
	89	var $size;
	90	var $encoding;
	91	var $ctype;
	92	var $flags;
	93	var $timestamp;
	94	var $f;
	95	var $seen;
	96	var $deleted;
	97	var $recent;
	98	var $answered;
	99	var $junk;
	100	var $internaldate;
	101	var $is_reply;
	102	}
	103
	104
	105	class iilThreadHeader{
	106	var $id;
	107	var $sbj;
	108	var $irt;
	109	var $mid;
	110	}
	111
	112
	113	function iil_xor($string, $string2){
	114	$result = "";
	115	$size = strlen($string);
	116	for ($i=0; $i<$size; $i++) $result .= chr(ord($string[$i]) ^ ord($string2[$i]));
	117
	118	return $result;
	119	}
	120
	121	function iil_ReadLine($fp, $size){
	122	$line="";
	123	if ($fp){
	124	do{
	125	$buffer = fgets($fp, 2048);
	126	$line.=$buffer;
	127	}while($buffer[strlen($buffer)-1]!="\n");
	128	}
	129	return $line;
	130	}
	131
	132	function iil_MultLine($fp, $line){
	133	$line = chop($line);
	134	if (ereg('\{[0-9]+\}$', $line)){
	135	$out = "";
	136	preg_match_all('/(.*)\{([0-9]+)\}$/', $line, $a);
	137	$bytes = $a[2][0];
	138	while(strlen($out)<$bytes){
	139	$out.=chop(iil_ReadLine($fp, 1024));
	140	}
	141	$line = $a[1][0]."\"$out\"";
	142	}
	143	return $line;
	144	}
	145
	146	function iil_ReadBytes($fp, $bytes){
	147	$data = "";
	148	$len = 0;
	149	do{
	150	$data.=fread($fp, $bytes-$len);
	151	$len = strlen($data);
	152	}while($len<$bytes);
	153	return $data;
	154	}
	155
	156	function iil_ReadReply($fp){
	157	do{
	158	$line = chop(trim(iil_ReadLine($fp, 1024)));
	159	}while($line[0]=="*");
	160
	161	return $line;
	162	}
	163
	164	function iil_ParseResult($string){
	165	$a=explode(" ", $string);
	166	if (count($a) > 2){
	167	if (strcasecmp($a[1], "OK")==0) return 0;
	168	else if (strcasecmp($a[1], "NO")==0) return -1;
	169	else if (strcasecmp($a[1], "BAD")==0) return -2;
	170	}else return -3;
	171	}
	172
	173	// check if $string starts with $match
	174	function iil_StartsWith($string, $match){
	175	$len = strlen($match);
	176	if ($len==0) return false;
	177	if (strncmp($string, $match, $len)==0) return true;
	178	else return false;
	179	}
	180
	181	function iil_StartsWithI($string, $match){
	182	$len = strlen($match);
	183	if ($len==0) return false;
	184	if (strncasecmp($string, $match, $len)==0) return true;
	185	else return false;
	186	}
	187
	188
	189	function iil_C_Authenticate(&$conn, $user, $pass, $encChallenge){
	190
	191	// initialize ipad, opad
	192	for ($i=0;$i<64;$i++){
	193	$ipad.=chr(0x36);
	194	$opad.=chr(0x5C);
	195	}
	196	// pad $pass so it's 64 bytes
	197	$padLen = 64 - strlen($pass);
	198	for ($i=0;$i<$padLen;$i++) $pass .= chr(0);
	199	// generate hash
	200	$hash = md5(iil_xor($pass,$opad).pack("H*",md5(iil_xor($pass, $ipad).base64_decode($encChallenge))));
	201	// generate reply
	202	$reply = base64_encode($user." ".$hash);
	203
	204	// send result, get reply
	205	fputs($conn->fp, $reply."\r\n");
	206	$line = iil_ReadLine($conn->fp, 1024);
	207
	208	// process result
	209	if (iil_ParseResult($line)==0){
	210	$conn->error .= "";
	211	$conn->errorNum = 0;
	212	return $conn->fp;
	213	}else{
8c2e58	214	$conn->error .= 'Authentication for '.$user.' failed (AUTH): "'.htmlspecialchars($line)."\"";
4e17e6	215	$conn->errorNum = -2;
T	216	return false;
	217	}
	218	}
	219
	220	function iil_C_Login(&$conn, $user, $password){
	221
	222	fputs($conn->fp, "a001 LOGIN $user \"$password\"\r\n");
	223
	224	do{
	225	$line = iil_ReadReply($conn->fp);
	226	}while(!iil_StartsWith($line, "a001 "));
	227	$a=explode(" ", $line);
	228	if (strcmp($a[1],"OK")==0){
	229	$result=$conn->fp;
	230	$conn->error.="";
	231	$conn->errorNum = 0;
	232	}else{
	233	$result=false;
	234	fclose($conn->fp);
8c2e58	235	$conn->error .= 'Authentication for '.$user.' failed (LOGIN): "'.htmlspecialchars($line)."\"";
4e17e6	236	$conn->errorNum = -2;
T	237	}
	238	return $result;
	239	}
	240
	241	function iil_ParseNamespace2($str, &$i, $len=0, $l){
	242	if (!$l) $str = str_replace("NIL", "()", $str);
	243	if (!$len) $len = strlen($str);
	244	$data = array();
	245	$in_quotes = false;
	246	$elem = 0;
	247	for($i;$i<$len;$i++){
	248	$c = (string)$str[$i];
	249	if ($c=='(' && !$in_quotes){
	250	$i++;
	251	$data[$elem] = iil_ParseNamespace2($str, $i, $len, $l++);
	252	$elem++;
	253	}else if ($c==')' && !$in_quotes) return $data;
	254	else if ($c=="\\"){
	255	$i++;
	256	if ($in_quotes) $data[$elem].=$c.$str[$i];
	257	}else if ($c=='"'){
	258	$in_quotes = !$in_quotes;
	259	if (!$in_quotes) $elem++;
	260	}else if ($in_quotes){
	261	$data[$elem].=$c;
	262	}
	263	}
	264	return $data;
	265	}
	266
	267	function iil_C_NameSpace(&$conn){
	268	global $my_prefs;
	269
f3b659	270	if (!in_array('NAMESPACE', $conn->capability))
T	271	return false;
	272
4e17e6	273	if ($my_prefs["rootdir"]) return true;
T	274
	275	fputs($conn->fp, "ns1 NAMESPACE\r\n");
	276	do{
	277	$line = iil_ReadLine($conn->fp, 1024);
	278	if (iil_StartsWith($line, "* NAMESPACE")){
	279	$i = 0;
	280	$data = iil_ParseNamespace2(substr($line,11), $i, 0, 0);
	281	}
	282	}while(!iil_StartsWith($line, "ns1"));
	283
	284	if (!is_array($data)) return false;
	285
	286	$user_space_data = $data[0];
	287	if (!is_array($user_space_data)) return false;
	288
	289	$first_userspace = $user_space_data[0];
	290	if (count($first_userspace)!=2) return false;
	291
	292	$conn->rootdir = $first_userspace[0];
	293	$conn->delimiter = $first_userspace[1];
	294	$my_prefs["rootdir"] = substr($conn->rootdir, 0, -1);
	295
	296	return true;
	297
	298	}
	299
	300	function iil_Connect($host, $user, $password){
	301	global $iil_error, $iil_errornum;
	302	global $ICL_SSL, $ICL_PORT;
	303	global $IMAP_NO_CACHE;
	304	global $my_prefs, $IMAP_USE_INTERNAL_DATE;
	305
	306	$iil_error = "";
	307	$iil_errornum = 0;
	308
	309	//strip slashes
f88d41	310	// $user = stripslashes($user);
T	311	// $password = stripslashes($password);
4e17e6	312
T	313	//set auth method
	314	$auth_method = "plain";
	315	if (func_num_args() >= 4){
	316	$auth_array = func_get_arg(3);
	317	if (is_array($auth_array)) $auth_method = $auth_array["imap"];
	318	if (empty($auth_method)) $auth_method = "plain";
	319	}
	320	$message = "INITIAL: $auth_method\n";
	321
	322	$result = false;
	323
	324	//initialize connection
	325	$conn = new iilConnection;
	326	$conn->error="";
	327	$conn->errorNum=0;
	328	$conn->selected="";
	329	$conn->user = $user;
	330	$conn->host = $host;
	331	$conn->cache = array();
	332	$conn->do_cache = (function_exists("cache_write")&&!$IMAP_NO_CACHE);
	333	$conn->cache_dirty = array();
	334
	335	if ($my_prefs['sort_field']=='INTERNALDATE') $IMAP_USE_INTERNAL_DATE = true;
	336	else if ($my_prefs['sort_field']=='DATE') $IMAP_USE_INTERNAL_DATE = false;
	337	//echo '<!-- conn sort_field: '.$my_prefs['sort_field'].' //-->';
	338
	339	//check input
8c2e58	340	if (empty($host)) $iil_error .= "Invalid host\n";
T	341	if (empty($user)) $iil_error .= "Invalid user\n";
	342	if (empty($password)) $iil_error .= "Invalid password\n";
4e17e6	343	if (!empty($iil_error)) return false;
T	344	if (!$ICL_PORT) $ICL_PORT = 143;
	345
	346	//check for SSL
	347	if ($ICL_SSL){
	348	$host = "ssl://".$host;
	349	}
	350
	351	//open socket connection
9fee0e	352	$conn->fp = @fsockopen($host, $ICL_PORT, $errno, $errstr, 10);
4e17e6	353	if (!$conn->fp){
520c36	354	$iil_error = "Could not connect to $host at port $ICL_PORT: $errstr";
4e17e6	355	$iil_errornum = -1;
T	356	return false;
	357	}
	358
	359	$iil_error.="Socket connection established\r\n";
	360	$line=iil_ReadLine($conn->fp, 300);
f3b659	361
4e17e6	362	if (strcasecmp($auth_method, "check")==0){
T	363	//check for supported auth methods
	364
	365	//default to plain text auth
	366	$auth_method = "plain";
	367
	368	//check for CRAM-MD5
	369	fputs($conn->fp, "cp01 CAPABILITY\r\n");
	370	do{
	371	$line = trim(chop(iil_ReadLine($conn->fp, 100)));
42b113	372	$conn->message.="$line\n";
4e17e6	373	$a = explode(" ", $line);
T	374	if ($line[0]=="*"){
	375	while ( list($k, $w) = each($a) ){
f3b659	376	if ($w!='*' && $w!='CAPABILITY')
T	377	$conn->capability[] = $w;
4e17e6	378	if ((strcasecmp($w, "AUTH=CRAM_MD5")==0)\|\|
T	379	(strcasecmp($w, "AUTH=CRAM-MD5")==0)){
	380	$auth_method = "auth";
	381	}
	382	}
	383	}
	384	}while($a[0]!="cp01");
	385	}
	386
	387	if (strcasecmp($auth_method, "auth")==0){
	388	$conn->message.="Trying CRAM-MD5\n";
	389	//do CRAM-MD5 authentication
	390	fputs($conn->fp, "a000 AUTHENTICATE CRAM-MD5\r\n");
	391	$line = trim(chop(iil_ReadLine($conn->fp, 1024)));
42b113	392	$conn->message.="$line\n";
4e17e6	393	if ($line[0]=="+"){
T	394	$conn->message.='Got challenge: '.htmlspecialchars($line)."\n";
	395	//got a challenge string, try CRAM-5
	396	$result = iil_C_Authenticate($conn, $user, $password, substr($line,2));
	397	$conn->message.= "Tried CRAM-MD5: $result \n";
	398	}else{
	399	$conn->message.='No challenge ('.htmlspecialchars($line)."), try plain\n";
	400	$auth = "plain";
	401	}
	402	}
	403
	404	if ((!$result)\|\|(strcasecmp($auth, "plain")==0)){
	405	//do plain text auth
	406	$result = iil_C_Login($conn, $user, $password);
	407	$conn->message.="Tried PLAIN: $result \n";
	408	}
	409
	410	$conn->message .= $auth;
	411
	412	if ($result){
	413	iil_C_Namespace($conn);
	414	return $conn;
	415	}else{
	416	$iil_error = $conn->error;
	417	$iil_errornum = $conn->errorNum;
	418	return false;
	419	}
	420	}
	421
	422	function iil_Close(&$conn){
	423	iil_C_WriteCache($conn);
	424	if (@fputs($conn->fp, "I LOGOUT\r\n")){
	425	fgets($conn->fp, 1024);
	426	fclose($conn->fp);
	427	$conn->fp = false;
	428	}
	429	}
	430
	431	function iil_ClearCache($user, $host){
	432	}
	433
	434
	435	function iil_C_WriteCache(&$conn){
	436	//echo "<!-- doing iil_C_WriteCache //-->\n";
	437	if (!$conn->do_cache) return false;
	438
	439	if (is_array($conn->cache)){
	440	while(list($folder,$data)=each($conn->cache)){
	441	if ($folder && is_array($data) && $conn->cache_dirty[$folder]){
	442	$key = $folder.".imap";
	443	$result = cache_write($conn->user, $conn->host, $key, $data, true);
	444	//echo "<!-- writing $key $data: $result //-->\n";
	445	}
	446	}
	447	}
	448	}
	449
	450	function iil_C_EnableCache(&$conn){
	451	$conn->do_cache = true;
	452	}
	453
	454	function iil_C_DisableCache(&$conn){
	455	$conn->do_cache = false;
	456	}
	457
	458	function iil_C_LoadCache(&$conn, $folder){
	459	if (!$conn->do_cache) return false;
	460
	461	$key = $folder.".imap";
	462	if (!is_array($conn->cache[$folder])){
	463	$conn->cache[$folder] = cache_read($conn->user, $conn->host, $key);
	464	$conn->cache_dirty[$folder] = false;
	465	}
	466	}
	467
	468	function iil_C_ExpireCachedItems(&$conn, $folder, $message_set){
	469
	470	if (!$conn->do_cache) return; //caching disabled
	471	if (!is_array($conn->cache[$folder])) return; //cache not initialized\|empty
	472	if (count($conn->cache[$folder])==0) return; //cache not initialized\|empty
	473
	474	$uids = iil_C_FetchHeaderIndex($conn, $folder, $message_set, "UID");
	475	$num_removed = 0;
	476	if (is_array($uids)){
	477	//echo "<!-- unsetting: ".implode(",",$uids)." //-->\n";
	478	while(list($n,$uid)=each($uids)){
	479	unset($conn->cache[$folder][$uid]);
	480	//$conn->cache[$folder][$uid] = false;
	481	//$num_removed++;
	482	}
	483	$conn->cache_dirty[$folder] = true;
	484
	485	//echo '<!--'."\n";
	486	//print_r($conn->cache);
	487	//echo "\n".'//-->'."\n";
	488	}else{
	489	echo "<!-- failed to get uids: $message_set //-->\n";
	490	}
	491
	492	/*
	493	if ($num_removed>0){
	494	$new_cache;
	495	reset($conn->cache[$folder]);
	496	while(list($uid,$item)=each($conn->cache[$folder])){
	497	if ($item) $new_cache[$uid] = $conn->cache[$folder][$uid];
	498	}
	499	$conn->cache[$folder] = $new_cache;
	500	}
	501	*/
	502	}
	503
	504	function iil_ExplodeQuotedString($delimiter, $string){
	505	$quotes=explode("\"", $string);
	506	while ( list($key, $val) = each($quotes))
	507	if (($key % 2) == 1)
	508	$quotes[$key] = str_replace($delimiter, "_!@!_", $quotes[$key]);
	509	$string=implode("\"", $quotes);
	510
	511	$result=explode($delimiter, $string);
	512	while ( list($key, $val) = each($result) )
	513	$result[$key] = str_replace("_!@!_", $delimiter, $result[$key]);
	514
	515	return $result;
	516	}
	517
	518	function iil_CheckForRecent($host, $user, $password, $mailbox){
	519	if (empty($mailbox)) $mailbox="INBOX";
	520
	521	$conn=iil_Connect($host, $user, $password, "plain");
	522	$fp = $conn->fp;
	523	if ($fp){
	524	fputs($fp, "a002 EXAMINE \"$mailbox\"\r\n");
	525	do{
	526	$line=chop(iil_ReadLine($fp, 300));
	527	$a=explode(" ", $line);
	528	if (($a[0]=="*") && (strcasecmp($a[2], "RECENT")==0)) $result=(int)$a[1];
	529	}while (!iil_StartsWith($a[0],"a002"));
	530
	531	fputs($fp, "a003 LOGOUT\r\n");
	532	fclose($fp);
	533	}else $result=-2;
	534
	535	return $result;
	536	}
	537
	538	function iil_C_Select(&$conn, $mailbox){
	539	$fp = $conn->fp;
	540
	541	if (empty($mailbox)) return false;
	542	if (strcmp($conn->selected, $mailbox)==0) return true;
	543
	544	iil_C_LoadCache($conn, $mailbox);
	545
	546	if (fputs($fp, "sel1 SELECT \"$mailbox\"\r\n")){
	547	do{
	548	$line=chop(iil_ReadLine($fp, 300));
	549	$a=explode(" ", $line);
	550	if (count($a) == 3){
	551	if (strcasecmp($a[2], "EXISTS")==0) $conn->exists=(int)$a[1];
	552	if (strcasecmp($a[2], "RECENT")==0) $conn->recent=(int)$a[1];
	553	}
	554	}while (!iil_StartsWith($line, "sel1"));
	555
	556	$a=explode(" ", $line);
	557
	558	if (strcasecmp($a[1],"OK")==0){
	559	$conn->selected = $mailbox;
	560	return true;
	561	}else return false;
	562	}else{
	563	return false;
	564	}
	565	}
	566
	567	function iil_C_CheckForRecent(&$conn, $mailbox){
	568	if (empty($mailbox)) $mailbox="INBOX";
	569
	570	iil_C_Select($conn, $mailbox);
	571	if ($conn->selected==$mailbox) return $conn->recent;
	572	else return false;
	573	}
	574
	575	function iil_C_CountMessages(&$conn, $mailbox, $refresh=false){
	576	if ($refresh) $conn->selected="";
	577	iil_C_Select($conn, $mailbox);
	578	if ($conn->selected==$mailbox) return $conn->exists;
	579	else return false;
	580	}
	581
	582	function iil_SplitHeaderLine($string){
	583	$pos=strpos($string, ":");
	584	if ($pos>0){
	585	$res[0]=substr($string, 0, $pos);
	586	$res[1]=trim(substr($string, $pos+1));
	587	return $res;
	588	}else{
	589	return $string;
	590	}
	591	}
	592
	593	function iil_StrToTime($str){
	594	global $IMAP_MONTHS,$IMAP_SERVER_TZ;
	595
	596	if ($str) $time1 = strtotime($str);
	597	if ($time1 && $time1!=-1) return $time1-$IMAP_SERVER_TZ;
	598
	599	//echo '<!--'.$str.'//-->';
	600
	601	//replace double spaces with single space
	602	$str = trim($str);
	603	$str = str_replace(" ", " ", $str);
	604
	605	//strip off day of week
	606	$pos=strpos($str, " ");
	607	if (!is_numeric(substr($str, 0, $pos))) $str = substr($str, $pos+1);
	608
	609	//explode, take good parts
	610	$a=explode(" ",$str);
	611	//$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);
	612	$month_str=$a[1];
	613	$month=$IMAP_MONTHS[$month_str];
	614	$day=$a[0];
	615	$year=$a[2];
	616	$time=$a[3];
	617	$tz_str = $a[4];
	618	$tz = substr($tz_str, 0, 3);
	619	$ta=explode(":",$time);
	620	$hour=(int)$ta[0]-(int)$tz;
	621	$minute=$ta[1];
	622	$second=$ta[2];
	623
	624	//make UNIX timestamp
	625	$time2 = mktime($hour, $minute, $second, $month, $day, $year);
	626	//echo '<!--'.$time1.' '.$time2.' //-->'."\n";
	627	return $time2;
	628	}
	629
15a9d1	630	function iil_C_Sort(&$conn, $mailbox, $field, $add=''){
4e17e6	631	/* Do "SELECT" command */
T	632	if (!iil_C_Select($conn, $mailbox)) return false;
	633
	634	$field = strtoupper($field);
	635	if ($field=='INTERNALDATE') $field='ARRIVAL';
	636	$fields = array('ARRIVAL'=>1,'CC'=>1,'DATE'=>1,'FROM'=>1,'SIZE'=>1,'SUBJECT'=>1,'TO'=>1);
	637
	638	if (!$fields[$field]) return false;
	639
	640	$fp = $conn->fp;
15a9d1	641	$command = 's SORT ('.$field.') US-ASCII ALL '."$add\r\n";
4e17e6	642	$line = $data = '';
T	643
	644	if (!fputs($fp, $command)) return false;
	645	do{
	646	$line = chop(iil_ReadLine($fp, 1024));
	647	if (iil_StartsWith($line, '* SORT')) $data.=($data?' ':'').substr($line,7);
	648	}while($line[0]!='s');
	649
	650	if (empty($data)){
	651	$conn->error = $line;
	652	return false;
	653	}
	654
	655	$out = explode(' ',$data);
	656	return $out;
	657	}
	658
	659	function iil_C_FetchHeaderIndex(&$conn, $mailbox, $message_set, $index_field,$normalize=true){
	660	global $IMAP_USE_INTERNAL_DATE;
	661
	662	$c=0;
	663	$result=array();
	664	$fp = $conn->fp;
	665
	666	if (empty($index_field)) $index_field="DATE";
	667	$index_field = strtoupper($index_field);
	668
	669	if (empty($message_set)) return array();
	670
	671	//$fields_a["DATE"] = ($IMAP_USE_INTERNAL_DATE?6:1);
	672	$fields_a['DATE'] = 1;
	673	$fields_a['INTERNALDATE'] = 6;
	674	$fields_a['FROM'] = 1;
	675	$fields_a['REPLY-TO'] = 1;
	676	$fields_a['SENDER'] = 1;
	677	$fields_a['TO'] = 1;
	678	$fields_a['SUBJECT'] = 1;
	679	$fields_a['UID'] = 2;
	680	$fields_a['SIZE'] = 2;
	681	$fields_a['SEEN'] = 3;
	682	$fields_a['RECENT'] = 4;
	683	$fields_a['DELETED'] = 5;
	684
	685	$mode=$fields_a[$index_field];
	686	if (!($mode > 0)) return false;
	687
	688	/* Do "SELECT" command */
	689	if (!iil_C_Select($conn, $mailbox)) return false;
	690
	691	/* FETCH date,from,subject headers */
	692	if ($mode==1){
	693	$key="fhi".($c++);
	694	$request=$key." FETCH $message_set (BODY.PEEK[HEADER.FIELDS ($index_field)])\r\n";
	695	if (!fputs($fp, $request)) return false;
	696	do{
	697
	698	$line=chop(iil_ReadLine($fp, 200));
	699	$a=explode(" ", $line);
	700	if (($line[0]=="*") && ($a[2]=="FETCH") && ($line[strlen($line)-1]!=")")){
	701	$id=$a[1];
	702
	703	$str=$line=chop(iil_ReadLine($fp, 300));
	704
	705	while($line[0]!=")"){ //caution, this line works only in this particular case
	706	$line=chop(iil_ReadLine($fp, 300));
	707	if ($line[0]!=")"){
	708	if (ord($line[0]) <= 32){ //continuation from previous header line
	709	$str.=" ".trim($line);
	710	}
	711	if ((ord($line[0]) > 32) \|\| (strlen($line[0]) == 0)){
	712	list($field, $string) = iil_SplitHeaderLine($str);
	713	if (strcasecmp($field, "date")==0){
	714	$result[$id]=iil_StrToTime($string);
	715	}else{
	716	$result[$id] = str_replace("\"", "", $string);
	717	if ($normalize) $result[$id]=strtoupper($result[$id]);
	718	}
	719	$str=$line;
	720	}
	721	}
	722	}
	723	}
	724	/*
	725	$end_pos = strlen($line)-1;
	726	if (($line[0]=="*") && ($a[2]=="FETCH") && ($line[$end_pos]=="}")){
	727	$id = $a[1];
	728	$pos = strrpos($line, "{")+1;
	729	$bytes = (int)substr($line, $pos, $end_pos-$pos);
	730	$received = 0;
	731	do{
	732	$line = iil_ReadLine($fp, 0);
	733	$received+=strlen($line);
	734	$line = chop($line);
	735
	736	if ($received>$bytes) break;
	737	else if (!$line) continue;
	738
	739	list($field,$string)=explode(": ", $line);
	740
	741	if (strcasecmp($field, "date")==0)
	742	$result[$id] = iil_StrToTime($string);
	743	else if ($index_field!="DATE")
	744	$result[$id]=strtoupper(str_replace("\"", "", $string));
	745	}while($line[0]!=")");
	746	}else{
	747	//one line response, not expected so ignore
	748	}
	749	*/
	750	}while(!iil_StartsWith($line, $key));
	751	}else if ($mode==6){
	752	$key="fhi".($c++);
	753	$request = $key." FETCH $message_set (INTERNALDATE)\r\n";
	754	if (!fputs($fp, $request)) return false;
	755	do{
	756	$line=chop(iil_ReadLine($fp, 200));
	757	if ($line[0]=="*"){
	758	//original: "* 10 FETCH (INTERNALDATE "31-Jul-2002 09:18:02 -0500")"
	759	$paren_pos = strpos($line, "(");
	760	$foo = substr($line, 0, $paren_pos);
	761	$a = explode(" ", $foo);
	762	$id = $a[1];
	763
	764	$open_pos = strpos($line, "\"") + 1;
	765	$close_pos = strrpos($line, "\"");
	766	if ($open_pos && $close_pos){
	767	$len = $close_pos - $open_pos;
	768	$time_str = substr($line, $open_pos, $len);
	769	$result[$id] = strtotime($time_str);
	770	}
	771	}else{
	772	$a = explode(" ", $line);
	773	}
	774	}while(!iil_StartsWith($a[0], $key));
	775	}else{
	776	if ($mode >= 3) $field_name="FLAGS";
	777	else if ($index_field=="SIZE") $field_name="RFC822.SIZE";
	778	else $field_name=$index_field;
	779
	780	/* FETCH uid, size, flags */
	781	$key="fhi".($c++);
	782	$request=$key." FETCH $message_set ($field_name)\r\n";
	783
	784	if (!fputs($fp, $request)) return false;
	785	do{
	786	$line=chop(iil_ReadLine($fp, 200));
	787	$a = explode(" ", $line);
	788	if (($line[0]=="*") && ($a[2]=="FETCH")){
	789	$line=str_replace("(", "", $line);
	790	$line=str_replace(")", "", $line);
	791	$a=explode(" ", $line);
	792
	793	$id=$a[1];
	794
	795	if (isset($result[$id])) continue; //if we already got the data, skip forward
	796	if ($a[3]!=$field_name) continue; //make sure it's returning what we requested
	797
	798	/* Caution, bad assumptions, next several lines */
	799	if ($mode==2) $result[$id]=$a[4];
	800	else{
	801	$haystack=strtoupper($line);
	802	$result[$id]=(strpos($haystack, $index_field) > 0 ? "F" : "N");
	803	}
	804	}
	805	}while(!iil_StartsWith($line, $key));
	806	}
	807
	808	//check number of elements...
	809	list($start_mid,$end_mid)=explode(':',$message_set);
	810	if (is_numeric($start_mid) && is_numeric($end_mid)){
	811	//count how many we should have
	812	$should_have = $end_mid - $start_mid +1;
	813
	814	//if we have less, try and fill in the "gaps"
	815	if (count($result)<$should_have){
	816	for($i=$start_mid;$i<=$end_mid;$i++) if (!isset($result[$i])) $result[$i] = '';
	817	}
	818	}
	819
	820	return $result;
	821
	822	}
	823
	824	function iil_CompressMessageSet($message_set){
	825	//given a comma delimited list of independent mid's,
	826	//compresses by grouping sequences together
	827
	828	//if less than 255 bytes long, let's not bother
	829	if (strlen($message_set)<255) return $message_set;
	830
	831	//see if it's already been compress
	832	if (strpos($message_set,':')!==false) return $message_set;
	833
	834	//separate, then sort
	835	$ids = explode(',',$message_set);
	836	sort($ids);
	837
	838	$result = array();
	839	$start = $prev = $ids[0];
	840	foreach($ids as $id){
	841	$incr = $id - $prev;
	842	if ($incr>1){ //found a gap
	843	if ($start==$prev) $result[] = $prev; //push single id
	844	else $result[] = $start.':'.$prev; //push sequence as start_id:end_id
	845	$start = $id; //start of new sequence
	846	}
	847	$prev = $id;
	848	}
	849	//handle the last sequence/id
	850	if ($start==$prev) $result[] = $prev;
	851	else $result[] = $start.':'.$prev;
	852
	853	//return as comma separated string
	854	return implode(',',$result);
	855	}
	856
	857	function iil_C_UIDsToMIDs(&$conn, $mailbox, $uids){
	858	if (!is_array($uids) \|\| count($uids)==0) return array();
	859	return iil_C_Search($conn, $mailbox, "UID ".implode(",", $uids));
	860	}
	861
	862	function iil_C_UIDToMID(&$conn, $mailbox, $uid){
	863	$result = iil_C_UIDsToMIDs($conn, $mailbox, array($uid));
	864	if (count($result)==1) return $result[0];
	865	else return false;
	866	}
	867
	868	function iil_C_FetchUIDs(&$conn,$mailbox){
	869	global $clock;
	870
30233b	871	$num = iil_C_CountMessages($conn, $mailbox);
4e17e6	872	if ($num==0) return array();
T	873	$message_set = '1'.($num>1?':'.$num:'');
	874
	875	//if cache not enabled, just call iil_C_FetchHeaderIndex on 'UID' field
	876	if (!$conn->do_cache)
	877	return iil_C_FetchHeaderIndex($conn, $mailbox, $message_set, 'UID');
	878
	879	//otherwise, let's check cache first
	880	$key = $mailbox.'.uids';
	881	$cache_good = true;
	882	if ($conn->uid_cache) $data = $conn->uid_cache;
	883	else $data = cache_read($conn->user, $conn->host, $key);
	884
	885	//was anything cached at all?
	886	if ($data===false) $cache_good = -1;
	887
	888	//make sure number of messages were the same
	889	if ($cache_good>0 && $data['n']!=$num) $cache_good = -2;
	890
	891	//if everything's okay so far...
	892	if ($cache_good>0){
	893	//check UIDs of highest mid with current and cached
	894	$temp = iil_C_Search($conn, $mailbox, 'UID '.$data['d'][$num]);
	895	if (!$temp \|\| !is_array($temp) \|\| $temp[0]!=$num) $cache_good=-3;
	896	}
	897
	898	//if cached data's good, return it
	899	if ($cache_good>0){
	900	return $data['d'];
	901	}
	902
	903	//otherwise, we need to fetch it
	904	$data = array('n'=>$num,'d'=>array());
	905	$data['d'] = iil_C_FetchHeaderIndex($conn, $mailbox, $message_set, 'UID');
	906	cache_write($conn->user, $conn->host, $key, $data);
	907	$conn->uid_cache = $data;
	908	return $data['d'];
	909	}
	910
	911	function iil_SortThreadHeaders($headers, $index_a, $uids){
	912	asort($index_a);
	913	$result = array();
	914	foreach($index_a as $mid=>$foobar){
	915	$uid = $uids[$mid];
	916	$result[$uid] = $headers[$uid];
	917	}
	918	return $result;
	919	}
	920
	921	function iil_C_FetchThreadHeaders(&$conn, $mailbox, $message_set){
	922	global $clock;
	923	global $index_a;
	924
	925	if (empty($message_set)) return false;
	926
	927	$result = array();
	928	$uids = iil_C_FetchUIDs($conn, $mailbox);
	929	$debug = false;
	930
	931	/* Get cached records where possible */
	932	if ($conn->do_cache){
	933	$cached = cache_read($conn->user, $conn->host, $mailbox.'.thhd');
	934	if ($cached && is_array($uids) && count($uids)>0){
	935	$needed_set = "";
	936	foreach($uids as $id=>$uid){
	937	if ($cached[$uid]){
	938	$result[$uid] = $cached[$uid];
	939	$result[$uid]->id = $id;
	940	}else $needed_set.=($needed_set?",":"").$id;
	941	}
	942	if ($needed_set) $message_set = $needed_set;
	943	else $message_set = '';
	944	}
	945	}
	946	$message_set = iil_CompressMessageSet($message_set);
	947	if ($debug) echo "Still need: ".$message_set;
	948
	949	/* if we're missing any, get them */
	950	if ($message_set){
	951	/* FETCH date,from,subject headers */
	952	$key="fh";
	953	$fp = $conn->fp;
	954	$request=$key." FETCH $message_set (BODY.PEEK[HEADER.FIELDS (SUBJECT MESSAGE-ID IN-REPLY-TO)])\r\n";
	955	$mid_to_id = array();
	956	if (!fputs($fp, $request)) return false;
	957	do{
	958	$line = chop(iil_ReadLine($fp, 1024));
	959	if ($debug) echo $line."\n";
	960	if (ereg('\{[0-9]+\}$', $line)){
	961	$a = explode(" ", $line);
	962	$new = array();
	963
	964	$new_thhd = new iilThreadHeader;
	965	$new_thhd->id = $a[1];
	966	do{
	967	$line=chop(iil_ReadLine($fp, 1024),"\r\n");
	968	if (iil_StartsWithI($line,'Message-ID:') \|\| (iil_StartsWithI($line,'In-Reply-To:')) \|\| (iil_StartsWithI($line,'SUBJECT:'))){
	969	$pos = strpos($line, ":");
	970	$field_name = substr($line, 0, $pos);
	971	$field_val = substr($line, $pos+1);
	972	$new[strtoupper($field_name)] = trim($field_val);
	973	}else if (ereg('^[[:space:]]', $line)){
	974	$new[strtoupper($field_name)].= trim($line);
	975	}
	976	}while($line[0]!=')');
	977	$new_thhd->sbj = $new['SUBJECT'];
	978	$new_thhd->mid = substr($new['MESSAGE-ID'], 1, -1);
	979	$new_thhd->irt = substr($new['IN-REPLY-TO'], 1, -1);
	980
	981	$result[$uids[$new_thhd->id]] = $new_thhd;
	982	}
	983	}while(!iil_StartsWith($line, "fh"));
	984	}
	985
	986	/* sort headers */
	987	if (is_array($index_a)){
	988	$result = iil_SortThreadHeaders($result, $index_a, $uids);
	989	}
	990
	991	/* write new set to cache */
	992	if ($conn->do_cache){
	993	if (count($result)!=count($cached))
	994	cache_write($conn->user, $conn->host, $mailbox.'.thhd', $result);
	995	}
	996
	997	//echo 'iil_FetchThreadHeaders:'."\n";
	998	//print_r($result);
	999
	1000	return $result;
	1001	}
	1002
	1003	function iil_C_BuildThreads2(&$conn, $mailbox, $message_set, &$clock){
	1004	global $index_a;
	1005
	1006	if (empty($message_set)) return false;
	1007
	1008	$result=array();
	1009	$roots=array();
	1010	$root_mids = array();
	1011	$sub_mids = array();
	1012	$strays = array();
	1013	$messages = array();
	1014	$fp = $conn->fp;
	1015	$debug = false;
	1016
	1017	$sbj_filter_pat = '[a-zA-Z]{2,3}(\[[0-9]\])?:([[:space:]])';
	1018
	1019	/* Do "SELECT" command */
	1020	if (!iil_C_Select($conn, $mailbox)) return false;
	1021
	1022	/* FETCH date,from,subject headers */
	1023	$mid_to_id = array();
	1024	$messages = array();
	1025	$headers = iil_C_FetchThreadHeaders($conn, $mailbox, $message_set);
	1026	if ($clock) $clock->register('fetched headers');
	1027
	1028	if ($debug) print_r($headers);
	1029
	1030	/* go through header records */
	1031	foreach($headers as $header){
	1032	//$id = $header['i'];
	1033	//$new = array('id'=>$id, 'MESSAGE-ID'=>$header['m'],
	1034	// 'IN-REPLY-TO'=>$header['r'], 'SUBJECT'=>$header['s']);
	1035	$id = $header->id;
	1036	$new = array('id'=>$id, 'MESSAGE-ID'=>$header->mid,
	1037	'IN-REPLY-TO'=>$header->irt, 'SUBJECT'=>$header->sbj);
	1038
	1039	/* add to message-id -> mid lookup table */
	1040	$mid_to_id[$new['MESSAGE-ID']] = $id;
	1041
	1042	/* if no subject, use message-id */
	1043	if (empty($new['SUBJECT'])) $new['SUBJECT'] = $new['MESSAGE-ID'];
	1044
	1045	/* if subject contains 'RE:' or has in-reply-to header, it's a reply */
	1046	$sbj_pre ='';
	1047	$has_re = false;
	1048	if (eregi($sbj_filter_pat, $new['SUBJECT'])) $has_re = true;
	1049	if ($has_re\|\|$new['IN-REPLY-TO']) $sbj_pre = 'RE:';
	1050
	1051	/* strip out 're:', 'fw:' etc */
	1052	if ($has_re) $sbj = ereg_replace($sbj_filter_pat,'', $new['SUBJECT']);
	1053	else $sbj = $new['SUBJECT'];
	1054	$new['SUBJECT'] = $sbj_pre.$sbj;
	1055
	1056
	1057	/* if subject not a known thread-root, add to list */
	1058	if ($debug) echo $id.' '.$new['SUBJECT']."\t".$new['MESSAGE-ID']."\n";
	1059	$root_id = $roots[$sbj];
	1060
	1061	if ($root_id && ($has_re \|\| !$root_in_root[$root_id])){
	1062	if ($debug) echo "\tfound root: $root_id\n";
	1063	$sub_mids[$new['MESSAGE-ID']] = $root_id;
	1064	$result[$root_id][] = $id;
	1065	}else if (!isset($roots[$sbj])\|\|(!$has_re&&$root_in_root[$root_id])){
	1066	/* try to use In-Reply-To header to find root
	1067	unless subject contains 'Re:' */
	1068	if ($has_re&&$new['IN-REPLY-TO']){
	1069	if ($debug) echo "\tlooking: ".$new['IN-REPLY-TO']."\n";
	1070
	1071	//reply to known message?
	1072	$temp = $sub_mids[$new['IN-REPLY-TO']];
	1073
	1074	if ($temp){
	1075	//found it, root:=parent's root
	1076	if ($debug) echo "\tfound parent: ".$new['SUBJECT']."\n";
	1077	$result[$temp][] = $id;
	1078	$sub_mids[$new['MESSAGE-ID']] = $temp;
	1079	$sbj = '';
	1080	}else{
	1081	//if we can't find referenced parent, it's a "stray"
	1082	$strays[$id] = $new['IN-REPLY-TO'];
	1083	}
	1084	}
	1085
	1086	//add subject as root
	1087	if ($sbj){
	1088	if ($debug) echo "\t added to root\n";
	1089	$roots[$sbj] = $id;
	1090	$root_in_root[$id] = !$has_re;
	1091	$sub_mids[$new['MESSAGE-ID']] = $id;
	1092	$result[$id] = array($id);
	1093	}
	1094	if ($debug) echo $new['MESSAGE-ID']."\t".$sbj."\n";
	1095	}
	1096
	1097	}
	1098
	1099	//now that we've gone through all the messages,
	1100	//go back and try and link up the stray threads
	1101	if (count($strays)>0){
	1102	foreach($strays as $id=>$irt){
	1103	$root_id = $sub_mids[$irt];
	1104	if (!$root_id \|\| $root_id==$id) continue;
	1105	$result[$root_id] = array_merge($result[$root_id],$result[$id]);
	1106	unset($result[$id]);
	1107	}
	1108	}
	1109
	1110	if ($clock) $clock->register('data prepped');
	1111
	1112	if ($debug) print_r($roots);
	1113	//print_r($result);
	1114	return $result;
	1115	}
	1116
	1117
	1118	function iil_SortThreads(&$tree, $index, $sort_order='ASC'){
	1119	if (!is_array($tree) \|\| !is_array($index)) return false;
	1120
	1121	//create an id to position lookup table
	1122	$i = 0;
	1123	foreach($index as $id=>$val){
	1124	$i++;
	1125	$index[$id] = $i;
	1126	}
	1127	$max = $i+1;
	1128
	1129	//for each tree, set array key to position
	1130	$itree = array();
	1131	foreach($tree as $id=>$node){
	1132	if (count($tree[$id])<=1){
	1133	//for "threads" with only one message, key is position of that message
	1134	$n = $index[$id];
	1135	$itree[$n] = array($n=>$id);
	1136	}else{
	1137	//for "threads" with multiple messages,
	1138	$min = $max;
	1139	$new_a = array();
	1140	foreach($tree[$id] as $mid){
	1141	$new_a[$index[$mid]] = $mid; //create new sub-array mapping position to id
	1142	$pos = $index[$mid];
	1143	if ($pos&&$pos<$min) $min = $index[$mid]; //find smallest position
	1144	}
	1145	$n = $min; //smallest position of child is thread position
	1146
	1147	//assign smallest position to root level key
	1148	//set children array to one created above
	1149	ksort($new_a);
	1150	$itree[$n] = $new_a;
	1151	}
	1152	}
	1153
	1154
	1155	//sort by key, this basically sorts all threads
	1156	ksort($itree);
	1157	$i=0;
	1158	$out=array();
	1159	foreach($itree as $k=>$node){
	1160	$out[$i] = $itree[$k];
	1161	$i++;
	1162	}
	1163
	1164	//return
	1165	return $out;
	1166	}
	1167
	1168	function iil_IndexThreads(&$tree){
	1169	/* creates array mapping mid to thread id */
	1170
	1171	if (!is_array($tree)) return false;
	1172
	1173	$t_index = array();
	1174	foreach($tree as $pos=>$kids){
	1175	foreach($kids as $kid) $t_index[$kid] = $pos;
	1176	}
	1177
	1178	return $t_index;
	1179	}
	1180
	1181	function iil_C_FetchHeaders(&$conn, $mailbox, $message_set){
	1182	global $IMAP_USE_INTERNAL_DATE;
	1183
	1184	$c=0;
	1185	$result=array();
	1186	$fp = $conn->fp;
	1187
	1188	if (empty($message_set)) return array();
	1189
	1190	/* Do "SELECT" command */
	1191	if (!iil_C_Select($conn, $mailbox)){
	1192	$conn->error = "Couldn't select $mailbox";
	1193	return false;
	1194	}
	1195
	1196	/* Get cached records where possible */
	1197	if ($conn->do_cache){
	1198	$uids = iil_C_FetchHeaderIndex($conn, $mailbox, $message_set, "UID");
	1199	if (is_array($uids) && count($conn->cache[$mailbox]>0)){
	1200	$needed_set = "";
	1201	while(list($id,$uid)=each($uids)){
	1202	if ($conn->cache[$mailbox][$uid]){
	1203	$result[$id] = $conn->cache[$mailbox][$uid];
	1204	$result[$id]->id = $id;
	1205	}else $needed_set.=($needed_set?",":"").$id;
	1206	}
	1207	//echo "<!-- iil_C_FetchHeader\nMessage Set: $message_set\nNeeded Set:$needed_set\n//-->\n";
	1208	if ($needed_set) $message_set = iil_CompressMessageSet($needed_set);
	1209	else return $result;
	1210	}
	1211	}
	1212
	1213	/* FETCH date,from,subject headers */
	1214	$key="fh".($c++);
f88d41	1215	$request=$key." FETCH $message_set (BODY.PEEK[HEADER.FIELDS (DATE FROM TO SUBJECT REPLY-TO IN-REPLY-TO CC BCC CONTENT-TRANSFER-ENCODING CONTENT-TYPE MESSAGE-ID REFERENCE)])\r\n";
4e17e6	1216
T	1217	if (!fputs($fp, $request)) return false;
	1218	do{
	1219	$line=chop(iil_ReadLine($fp, 200));
	1220	$a=explode(" ", $line);
	1221	if (($line[0]=="*") && ($a[2]=="FETCH")){
	1222	$id=$a[1];
	1223	$result[$id]=new iilBasicHeader;
	1224	$result[$id]->id = $id;
	1225	$result[$id]->subject = "";
	1226	/*
	1227	Start parsing headers. The problem is, some header "lines" take up multiple lines.
	1228	So, we'll read ahead, and if the one we're reading now is a valid header, we'll
	1229	process the previous line. Otherwise, we'll keep adding the strings until we come
	1230	to the next valid header line.
	1231	*/
	1232	$i = 0;
	1233	$lines = array();
	1234	do{
	1235	$line = chop(iil_ReadLine($fp, 300),"\r\n");
	1236	if (ord($line[0])<=32) $lines[$i].=(empty($lines[$i])?"":"\n").trim(chop($line));
	1237	else{
	1238	$i++;
	1239	$lines[$i] = trim(chop($line));
	1240	}
b076a4	1241	}while($line[0]!=")" && strncmp($line, $key, strlen($key))); // patch from "Maksim Rubis" <siburny@hotmail.com>
4e17e6	1242
b076a4	1243	if(strncmp($line, $key, strlen($key)))
T	1244	{
4e17e6	1245	//process header, fill iilBasicHeader obj.
T	1246	// initialize
	1247	if (is_array($headers)){
	1248	reset($headers);
	1249	while ( list($k, $bar) = each($headers) ) $headers[$k] = "";
	1250	}
	1251
	1252	// create array with header field:data
	1253	$headers = array();
	1254	while ( list($lines_key, $str) = each($lines) ){
	1255	list($field, $string) = iil_SplitHeaderLine($str);
	1256	$field = strtolower($field);
	1257	$headers[$field] = $string;
	1258	}
	1259	$result[$id]->date = $headers["date"];
	1260	$result[$id]->timestamp = iil_StrToTime($headers["date"]);
	1261	$result[$id]->from = $headers["from"];
	1262	$result[$id]->to = str_replace("\n", " ", $headers["to"]);
	1263	$result[$id]->subject = str_replace("\n", "", $headers["subject"]);
	1264	$result[$id]->replyto = str_replace("\n", " ", $headers["reply-to"]);
	1265	$result[$id]->cc = str_replace("\n", " ", $headers["cc"]);
bde645	1266	$result[$id]->bcc = str_replace("\n", " ", $headers["bcc"]);
4e17e6	1267	$result[$id]->encoding = str_replace("\n", " ", $headers["content-transfer-encoding"]);
T	1268	$result[$id]->ctype = str_replace("\n", " ", $headers["content-type"]);
a95e0e	1269	$result[$id]->in_reply_to = ereg_replace("[\n<>]",'', $headers['in-reply-to']);
f88d41	1270	$result[$id]->reference = $headers["reference"];
a95e0e	1271
T	1272	list($result[$id]->ctype, $ctype_add) = explode(";", $headers["content-type"]);
	1273
	1274	if (preg_match('/charset="?([a-z0-9\-]+)"?/i', $ctype_add, $regs))
	1275	$result[$id]->charset = $regs[1];
	1276
4e17e6	1277	$messageID = $headers["message-id"];
f88d41	1278	if (!$messageID) "mid:".$id;
4e17e6	1279	$result[$id]->messageID = $messageID;
b076a4	1280	}
T	1281	else {
	1282	$a=explode(" ", $line);
	1283	}
4e17e6	1284
T	1285	}
	1286	}while(strcmp($a[0], $key)!=0);
	1287
	1288	/*
	1289	FETCH uid, size, flags
	1290	Sample reply line: "* 3 FETCH (UID 2417 RFC822.SIZE 2730 FLAGS (\Seen \Deleted))"
	1291	*/
	1292	$command_key="fh".($c++);
	1293	$request= $command_key." FETCH $message_set (UID RFC822.SIZE FLAGS INTERNALDATE)\r\n";
	1294	if (!fputs($fp, $request)) return false;
	1295	do{
	1296	$line=chop(iil_ReadLine($fp, 200));
	1297	//$a = explode(" ", $line);
	1298	//if (($line[0]=="*") && ($a[2]=="FETCH")){
	1299	if ($line[0]=="*"){
	1300	//echo "<!-- $line //-->\n";
	1301	//get outter most parens
	1302	$open_pos = strpos($line, "(") + 1;
	1303	$close_pos = strrpos($line, ")");
	1304	if ($open_pos && $close_pos){
	1305	//extract ID from pre-paren
	1306	$pre_str = substr($line, 0, $open_pos);
	1307	$pre_a = explode(" ", $line);
	1308	$id = $pre_a[1];
	1309
	1310	//get data
	1311	$len = $close_pos - $open_pos;
	1312	$str = substr($line, $open_pos, $len);
	1313
	1314	//swap parents with quotes, then explode
	1315	$str = eregi_replace("[()]", "\"", $str);
	1316	$a = iil_ExplodeQuotedString(" ", $str);
	1317
	1318	//did we get the right number of replies?
	1319	$parts_count = count($a);
	1320	if ($parts_count>=8){
	1321	for ($i=0;$i<$parts_count;$i=$i+2){
	1322	if (strcasecmp($a[$i],"UID")==0) $result[$id]->uid=$a[$i+1];
	1323	else if (strcasecmp($a[$i],"RFC822.SIZE")==0) $result[$id]->size=$a[$i+1];
	1324	else if (strcasecmp($a[$i],"INTERNALDATE")==0) $time_str = $a[$i+1];
	1325	else if (strcasecmp($a[$i],"FLAGS")==0) $flags_str = $a[$i+1];
	1326	}
	1327
	1328	// process flags
	1329	$flags_str = eregi_replace('[\\\"]', "", $flags_str);
	1330	$flags_a = explode(" ", $flags_str);
	1331	//echo "<!-- ID: $id FLAGS: ".implode(",", $flags_a)." //-->\n";
	1332
	1333	$result[$id]->seen = false;
	1334	$result[$id]->recent = false;
	1335	$result[$id]->deleted = false;
	1336	$result[$id]->answered = false;
	1337	if (is_array($flags_a)){
	1338	reset($flags_a);
	1339	while (list($key,$val)=each($flags_a)){
	1340	if (strcasecmp($val,"Seen")==0) $result[$id]->seen = true;
	1341	else if (strcasecmp($val, "Deleted")==0) $result[$id]->deleted=true;
	1342	else if (strcasecmp($val, "Recent")==0) $result[$id]->recent = true;
	1343	else if (strcasecmp($val, "Answered")==0) $result[$id]->answered = true;
	1344	}
	1345	$result[$id]->flags=$flags_str;
	1346	}
	1347
	1348	// if time is gmt...
	1349	$time_str = str_replace('GMT','+0000',$time_str);
	1350
	1351	//get timezone
	1352	$time_str = substr($time_str, 0, -1);
	1353	$time_zone_str = substr($time_str, -5); //extract timezone
	1354	$time_str = substr($time_str, 1, -6); //remove quotes
	1355	$time_zone = (float)substr($time_zone_str, 1, 2); //get first two digits
	1356	if ($time_zone_str[3]!='0') $time_zone += 0.5; //handle half hour offset
	1357	if ($time_zone_str[0]=="-") $time_zone = $time_zone * -1.0; //minus?
	1358	$result[$id]->internaldate = $time_str;
	1359
	1360	if ($IMAP_USE_INTERNAL_DATE){
	1361	//calculate timestamp
	1362	$timestamp = strtotime($time_str); //return's server's time
	1363	$na_timestamp = $timestamp;
	1364	$timestamp -= $time_zone * 3600; //compensate for tz, get GMT
	1365	$result[$id]->timestamp = $timestamp;
	1366	}
	1367
	1368	if ($conn->do_cache){
	1369	$uid = $result[$id]->uid;
	1370	$conn->cache[$mailbox][$uid] = $result[$id];
	1371	$conn->cache_dirty[$mailbox] = true;
	1372	}
	1373	//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";
	1374	}else{
	1375	//echo "<!-- ERROR: $id : $str //-->\n";
	1376	}
	1377	}
	1378	}
	1379	}while(strpos($line, $command_key)===false);
	1380
	1381	return $result;
	1382	}
	1383
	1384
	1385	function iil_C_FetchHeader(&$conn, $mailbox, $id){
	1386	$fp = $conn->fp;
	1387	$a=iil_C_FetchHeaders($conn, $mailbox, $id);
	1388	if (is_array($a)) return $a[$id];
	1389	else return false;
	1390	}
	1391
	1392
	1393	function iil_SortHeaders($a, $field, $flag){
	1394	if (empty($field)) $field="uid";
	1395	$field=strtolower($field);
	1396	if ($field=="date"\|\|$field=='internaldate') $field="timestamp";
	1397	if (empty($flag)) $flag="ASC";
	1398	$flag=strtoupper($flag);
b076a4	1399	$stripArr = ($field=='subject') ? array('Re: ','Fwd: ','Fw: ',"\"") : array("\"");
4647e1	1400
4e17e6	1401	$c=count($a);
T	1402	if ($c>0){
	1403	/*
	1404	Strategy:
	1405	First, we'll create an "index" array.
	1406	Then, we'll use sort() on that array,
	1407	and use that to sort the main array.
	1408	*/
	1409
3062b3	1410	// create "index" array
4e17e6	1411	$index=array();
T	1412	reset($a);
	1413	while (list($key, $val)=each($a)){
4647e1	1414
0d361b	1415	if ($field=="timestamp"){
T	1416	$data = @strtotime($val->date);
	1417	if ($data == false)
	1418	$data = $val->timestamp;
	1419	}
	1420	else {
	1421	$data = $val->$field;
	1422	if (is_string($data))
	1423	$data=strtoupper(str_replace($stripArr, "", $data));
	1424	}
4647e1	1425
4e17e6	1426	$index[$key]=$data;
T	1427	}
	1428
	1429	// sort index
	1430	$i=0;
	1431	if ($flag=="ASC") asort($index);
	1432	else arsort($index);
	1433
	1434	// form new array based on index
	1435	$result=array();
	1436	reset($index);
	1437	while (list($key, $val)=each($index)){
9fee0e	1438	$result[$key]=$a[$key];
4e17e6	1439	$i++;
T	1440	}
	1441	}
	1442
	1443	return $result;
	1444	}
	1445
	1446	function iil_C_Expunge(&$conn, $mailbox){
	1447	$fp = $conn->fp;
	1448	if (iil_C_Select($conn, $mailbox)){
	1449	$c=0;
	1450	fputs($fp, "exp1 EXPUNGE\r\n");
	1451	do{
	1452	$line=chop(iil_ReadLine($fp, 100));
	1453	if ($line[0]=="*") $c++;
	1454	}while (!iil_StartsWith($line, "exp1"));
	1455
	1456	if (iil_ParseResult($line) == 0){
	1457	$conn->selected = ""; //state has changed, need to reselect
	1458	//$conn->exists-=$c;
	1459	return $c;
	1460	}else{
	1461	$conn->error = $line;
	1462	return -1;
	1463	}
	1464	}
	1465
	1466	return -1;
	1467	}
	1468
	1469	function iil_C_ModFlag(&$conn, $mailbox, $messages, $flag, $mod){
	1470	if ($mod!="+" && $mod!="-") return -1;
	1471
	1472	$fp = $conn->fp;
	1473	$flags=array(
	1474	"SEEN"=>"\\Seen",
	1475	"DELETED"=>"\\Deleted",
	1476	"RECENT"=>"\\Recent",
	1477	"ANSWERED"=>"\\Answered",
	1478	"DRAFT"=>"\\Draft",
	1479	"FLAGGED"=>"\\Flagged"
	1480	);
	1481	$flag=strtoupper($flag);
	1482	$flag=$flags[$flag];
	1483	if (iil_C_Select($conn, $mailbox)){
	1484	$c=0;
	1485	fputs($fp, "flg STORE $messages ".$mod."FLAGS (".$flag.")\r\n");
	1486	do{
	1487	$line=chop(iil_ReadLine($fp, 100));
	1488	if ($line[0]=="*") $c++;
	1489	}while (!iil_StartsWith($line, "flg"));
520c36	1490
4e17e6	1491	if (iil_ParseResult($line) == 0){
T	1492	iil_C_ExpireCachedItems($conn, $mailbox, $messages);
	1493	return $c;
	1494	}else{
	1495	$conn->error = $line;
	1496	return -1;
	1497	}
	1498	}else{
	1499	$conn->error = "Select failed";
	1500	return -1;
	1501	}
	1502	}
	1503
	1504	function iil_C_Flag(&$conn, $mailbox, $messages, $flag){
	1505	return iil_C_ModFlag($conn, $mailbox, $messages, $flag, "+");
	1506	}
	1507
	1508	function iil_C_Unflag(&$conn, $mailbox, $messages, $flag){
	1509	return iil_C_ModFlag($conn, $mailbox, $messages, $flag, "-");
	1510	}
	1511
	1512	function iil_C_Delete(&$conn, $mailbox, $messages){
	1513	return iil_C_ModFlag($conn, $mailbox, $messages, "DELETED", "+");
	1514	}
	1515
	1516	function iil_C_Undelete(&$conn, $mailbox, $messages){
	1517	return iil_C_ModFlag($conn, $mailbox, $messages, "DELETED", "-");
	1518	}
	1519
	1520
	1521	function iil_C_Unseen(&$conn, $mailbox, $messages){
	1522	return iil_C_ModFlag($conn, $mailbox, $messages, "SEEN", "-");
	1523	}
	1524
	1525
	1526	function iil_C_Copy(&$conn, $messages, $from, $to){
	1527	$fp = $conn->fp;
	1528
	1529	if (empty($from) \|\| empty($to)) return -1;
	1530
	1531	if (iil_C_Select($conn, $from)){
	1532	$c=0;
	1533
	1534	fputs($fp, "cpy1 COPY $messages \"$to\"\r\n");
	1535	$line=iil_ReadReply($fp);
	1536	return iil_ParseResult($line);
	1537	}else{
	1538	return -1;
	1539	}
	1540	}
	1541
	1542	function iil_FormatSearchDate($month, $day, $year){
	1543	$month = (int)$month;
	1544	$months=array(
	1545	1=>"Jan", 2=>"Feb", 3=>"Mar", 4=>"Apr",
	1546	5=>"May", 6=>"Jun", 7=>"Jul", 8=>"Aug",
	1547	9=>"Sep", 10=>"Oct", 11=>"Nov", 12=>"Dec"
	1548	);
	1549	return $day."-".$months[$month]."-".$year;
	1550	}
	1551
	1552	function iil_C_CountUnseen(&$conn, $folder){
	1553	$index = iil_C_Search($conn, $folder, "ALL UNSEEN");
	1554	if (is_array($index)){
	1555	$str = implode(",", $index);
	1556	if (empty($str)) return false;
	1557	else return count($index);
	1558	}else return false;
	1559	}
	1560
	1561	function iil_C_UID2ID(&$conn, $folder, $uid){
	1562	if ($uid > 0){
	1563	$id_a = iil_C_Search($conn, $folder, "UID $uid");
	1564	if (is_array($id_a)){
	1565	$count = count($id_a);
	1566	if ($count > 1) return false;
	1567	else return $id_a[0];
	1568	}
	1569	}
	1570	return false;
	1571	}
	1572
	1573	function iil_C_Search(&$conn, $folder, $criteria){
	1574	$fp = $conn->fp;
	1575	if (iil_C_Select($conn, $folder)){
	1576	$c=0;
	1577
	1578	$query = "srch1 SEARCH ".chop($criteria)."\r\n";
	1579	fputs($fp, $query);
	1580	do{
	1581	$line=trim(chop(iil_ReadLine($fp, 10000)));
	1582	if (eregi("^\* SEARCH", $line)){
	1583	$str = trim(substr($line, 8));
	1584	$messages = explode(" ", $str);
	1585	}
	1586	}while(!iil_StartsWith($line, "srch1"));
	1587
	1588	$result_code=iil_ParseResult($line);
	1589	if ($result_code==0) return $messages;
	1590	else{
8c2e58	1591	$conn->error = "iil_C_Search: ".$line."\n";
4e17e6	1592	return false;
T	1593	}
	1594
	1595	}else{
8c2e58	1596	$conn->error = "iil_C_Search: Couldn't select \"$folder\"\n";
4e17e6	1597	return false;
T	1598	}
	1599	}
	1600
	1601	function iil_C_Move(&$conn, $messages, $from, $to){
	1602	$fp = $conn->fp;
	1603
	1604	if (!$from \|\| !$to) return -1;
	1605
	1606	$r=iil_C_Copy($conn, $messages, $from,$to);
	1607	if ($r==0){
	1608	return iil_C_Delete($conn, $from, $messages);
	1609	}else{
	1610	return $r;
	1611	}
	1612	}
	1613
	1614	function iil_C_GetHierarchyDelimiter(&$conn){
	1615	if ($conn->delimiter) return $conn->delimiter;
	1616
	1617	$fp = $conn->fp;
	1618	$delimiter = false;
	1619
	1620	//try (LIST "" ""), should return delimiter (RFC2060 Sec 6.3.8)
	1621	if (!fputs($fp, "ghd LIST \"\" \"\"\r\n")) return false;
	1622	do{
	1623	$line=iil_ReadLine($fp, 500);
	1624	if ($line[0]=="*"){
	1625	$line = rtrim($line);
	1626	$a=iil_ExplodeQuotedString(" ", $line);
	1627	if ($a[0]=="*") $delimiter = str_replace("\"", "", $a[count($a)-2]);
	1628	}
	1629	}while (!iil_StartsWith($line, "ghd"));
	1630
	1631	if (strlen($delimiter)>0) return $delimiter;
	1632
	1633	//if that fails, try namespace extension
	1634	//try to fetch namespace data
	1635	fputs($conn->fp, "ns1 NAMESPACE\r\n");
	1636	do{
	1637	$line = iil_ReadLine($conn->fp, 1024);
	1638	if (iil_StartsWith($line, "* NAMESPACE")){
	1639	$i = 0;
	1640	$data = iil_ParseNamespace2(substr($line,11), $i, 0, 0);
	1641	}
	1642	}while(!iil_StartsWith($line, "ns1"));
	1643
	1644	if (!is_array($data)) return false;
	1645
	1646	//extract user space data (opposed to global/shared space)
	1647	$user_space_data = $data[0];
	1648	if (!is_array($user_space_data)) return false;
	1649
	1650	//get first element
	1651	$first_userspace = $user_space_data[0];
	1652	if (!is_array($first_userspace)) return false;
	1653
	1654	//extract delimiter
	1655	$delimiter = $first_userspace[1];
	1656
	1657	return $delimiter;
	1658	}
	1659
	1660	function iil_C_ListMailboxes(&$conn, $ref, $mailbox){
	1661	global $IGNORE_FOLDERS;
	1662
	1663	$ignore = $IGNORE_FOLDERS[strtolower($conn->host)];
	1664
	1665	$fp = $conn->fp;
	1666	if (empty($mailbox)) $mailbox="*";
	1667	if (empty($ref) && $conn->rootdir) $ref = $conn->rootdir;
	1668
	1669	// send command
	1670	if (!fputs($fp, "lmb LIST \"".$ref."\" \"$mailbox\"\r\n")) return false;
	1671	$i=0;
	1672	// get folder list
	1673	do{
	1674	$line=iil_ReadLine($fp, 500);
	1675	$line=iil_MultLine($fp, $line);
	1676
	1677	$a = explode(" ", $line);
	1678	if (($line[0]=="*") && ($a[1]=="LIST")){
	1679	$line = rtrim($line);
	1680	// split one line
	1681	$a=iil_ExplodeQuotedString(" ", $line);
	1682	// last string is folder name
	1683	$folder = str_replace("\"", "", $a[count($a)-1]);
	1684	if (empty($ignore) \|\| (!empty($ignore) && !eregi($ignore, $folder))) $folders[$i] = $folder;
	1685	// second from last is delimiter
	1686	$delim = str_replace("\"", "", $a[count($a)-2]);
	1687	// is it a container?
	1688	$i++;
	1689	}
	1690	}while (!iil_StartsWith($line, "lmb"));
	1691
	1692	if (is_array($folders)){
	1693	if (!empty($ref)){
	1694	// if rootdir was specified, make sure it's the first element
	1695	// some IMAP servers (i.e. Courier) won't return it
	1696	if ($ref[strlen($ref)-1]==$delim) $ref = substr($ref, 0, strlen($ref)-1);
	1697	if ($folders[0]!=$ref) array_unshift($folders, $ref);
	1698	}
	1699	return $folders;
	1700	}else if (iil_ParseResult($line)==0){
	1701	return array('INBOX');
	1702	}else{
	1703	$conn->error = $line;
	1704	return false;
	1705	}
	1706	}
	1707
	1708
	1709	function iil_C_ListSubscribed(&$conn, $ref, $mailbox){
	1710	global $IGNORE_FOLDERS;
	1711
	1712	$ignore = $IGNORE_FOLDERS[strtolower($conn->host)];
	1713
	1714	$fp = $conn->fp;
	1715	if (empty($mailbox)) $mailbox = "*";
	1716	if (empty($ref) && $conn->rootdir) $ref = $conn->rootdir;
	1717	$folders = array();
	1718
	1719	// send command
	1720	if (!fputs($fp, "lsb LSUB \"".$ref."\" \"".$mailbox."\"\r\n")){
	1721	$conn->error = "Couldn't send LSUB command\n";
	1722	return false;
	1723	}
	1724	$i=0;
	1725	// get folder list
	1726	do{
	1727	$line=iil_ReadLine($fp, 500);
	1728	$line=iil_MultLine($fp, $line);
	1729	$a = explode(" ", $line);
	1730	if (($line[0]=="*") && ($a[1]=="LSUB")){
	1731	$line = rtrim($line);
	1732	// split one line
	1733	$a=iil_ExplodeQuotedString(" ", $line);
	1734	// last string is folder name
	1735	//$folder = UTF7DecodeString(str_replace("\"", "", $a[count($a)-1]));
	1736	$folder = str_replace("\"", "", $a[count($a)-1]);
	1737	if ((!in_array($folder, $folders)) && (empty($ignore) \|\| (!empty($ignore) && !eregi($ignore, $folder)))) $folders[$i] = $folder;
	1738	// second from last is delimiter
	1739	$delim = str_replace("\"", "", $a[count($a)-2]);
	1740	// is it a container?
	1741	$i++;
	1742	}
	1743	}while (!iil_StartsWith($line, "lsb"));
	1744
	1745	if (is_array($folders)){
	1746	if (!empty($ref)){
	1747	// if rootdir was specified, make sure it's the first element
	1748	// some IMAP servers (i.e. Courier) won't return it
	1749	if ($ref[strlen($ref)-1]==$delim) $ref = substr($ref, 0, strlen($ref)-1);
	1750	if ($folders[0]!=$ref) array_unshift($folders, $ref);
	1751	}
	1752	return $folders;
	1753	}else{
	1754	$conn->error = $line;
	1755	return false;
	1756	}
	1757	}
	1758
	1759
	1760	function iil_C_Subscribe(&$conn, $folder){
	1761	$fp = $conn->fp;
	1762
	1763	$query = "sub1 SUBSCRIBE \"".$folder."\"\r\n";
	1764	fputs($fp, $query);
	1765	$line=trim(chop(iil_ReadLine($fp, 10000)));
	1766	return iil_ParseResult($line);
	1767	}
	1768
	1769
	1770	function iil_C_UnSubscribe(&$conn, $folder){
	1771	$fp = $conn->fp;
	1772
	1773	$query = "usub1 UNSUBSCRIBE \"".$folder."\"\r\n";
	1774	fputs($fp, $query);
	1775	$line=trim(chop(iil_ReadLine($fp, 10000)));
	1776	return iil_ParseResult($line);
	1777	}
	1778
	1779
	1780	function iil_C_FetchPartHeader(&$conn, $mailbox, $id, $part){
	1781	$fp = $conn->fp;
	1782	$result=false;
	1783	if (($part==0)\|\|(empty($part))) $part="HEADER";
	1784	else $part.=".MIME";
	1785
	1786	if (iil_C_Select($conn, $mailbox)){
	1787	$key="fh".($c++);
	1788	$request=$key." FETCH $id (BODY.PEEK[$part])\r\n";
	1789	if (!fputs($fp, $request)) return false;
	1790	do{
	1791	$line=chop(iil_ReadLine($fp, 200));
	1792	$a=explode(" ", $line);
	1793	if (($line[0]=="*") && ($a[2]=="FETCH") && ($line[strlen($line)-1]!=")")){
	1794	$line=iil_ReadLine($fp, 300);
	1795	while(chop($line)!=")"){
	1796	$result.=$line;
	1797	$line=iil_ReadLine($fp, 300);
	1798	}
	1799	}
	1800	}while(strcmp($a[0], $key)!=0);
	1801	}
	1802
	1803	return $result;
	1804	}
	1805
	1806
	1807	function iil_C_HandlePartBody(&$conn, $mailbox, $id, $part, $mode){
	1808	/* modes:
	1809	1: return string
	1810	2: print
	1811	3: base64 and print
	1812	*/
	1813	$fp = $conn->fp;
	1814	$result=false;
	1815	if (($part==0)\|\|(empty($part))) $part="TEXT";
	1816
	1817	if (iil_C_Select($conn, $mailbox)){
	1818	$reply_key="* ".$id;
	1819	// format request
	1820	$key="ftch".($c++)." ";
	1821	$request=$key."FETCH $id (BODY.PEEK[$part])\r\n";
	1822	// send request
	1823	if (!fputs($fp, $request)) return false;
	1824	// receive reply line
	1825	do{
	1826	$line = chop(iil_ReadLine($fp, 1000));
	1827	$a = explode(" ", $line);
	1828	}while ($a[2]!="FETCH");
	1829	$len = strlen($line);
	1830	if ($line[$len-1] == ")"){
	1831	//one line response, get everything between first and last quotes
	1832	$from = strpos($line, "\"") + 1;
	1833	$to = strrpos($line, "\"");
	1834	$len = $to - $from;
	1835	if ($mode==1) $result = substr($line, $from, $len);
	1836	else if ($mode==2) echo substr($line, $from, $len);
	1837	else if ($mode==3) echo base64_decode(substr($line, $from, $len));
	1838	}else if ($line[$len-1] == "}"){
	1839	//multi-line request, find sizes of content and receive that many bytes
	1840	$from = strpos($line, "{") + 1;
	1841	$to = strrpos($line, "}");
	1842	$len = $to - $from;
	1843	$sizeStr = substr($line, $from, $len);
	1844	$bytes = (int)$sizeStr;
	1845	$received = 0;
	1846	while ($received < $bytes){
	1847	$remaining = $bytes - $received;
	1848	$line = iil_ReadLine($fp, 1024);
	1849	$len = strlen($line);
	1850	if ($len > $remaining) substr($line, 0, $remaining);
	1851	$received += strlen($line);
	1852	if ($mode==1) $result .= chop($line)."\n";
	1853	else if ($mode==2){ echo chop($line)."\n"; flush(); }
	1854	else if ($mode==3){ echo base64_decode($line); flush(); }
	1855	}
	1856	}
	1857	// read in anything up until 'til last line
	1858	do{
	1859	$line = iil_ReadLine($fp, 1024);
	1860	}while(!iil_StartsWith($line, $key));
	1861
	1862	if ($result){
	1863	$result = chop($result);
30233b	1864	return $result; // substr($result, 0, strlen($result)-1);
4e17e6	1865	}else return false;
T	1866	}else{
	1867	echo "Select failed.";
	1868	}
	1869
	1870	if ($mode==1) return $result;
	1871	else return $received;
	1872	}
	1873
	1874	function iil_C_FetchPartBody(&$conn, $mailbox, $id, $part){
	1875	return iil_C_HandlePartBody($conn, $mailbox, $id, $part, 1);
	1876	}
	1877
	1878	function iil_C_PrintPartBody(&$conn, $mailbox, $id, $part){
	1879	iil_C_HandlePartBody($conn, $mailbox, $id, $part, 2);
	1880	}
	1881
	1882	function iil_C_PrintBase64Body(&$conn, $mailbox, $id, $part){
	1883	iil_C_HandlePartBody($conn, $mailbox, $id, $part, 3);
	1884	}
	1885
	1886	function iil_C_CreateFolder(&$conn, $folder){
	1887	$fp = $conn->fp;
	1888	if (fputs($fp, "c CREATE \"".$folder."\"\r\n")){
	1889	do{
	1890	$line=iil_ReadLine($fp, 300);
	1891	}while($line[0]!="c");
	1892	$conn->error = $line;
	1893	return (iil_ParseResult($line)==0);
	1894	}else{
	1895	return false;
	1896	}
	1897	}
	1898
	1899	function iil_C_RenameFolder(&$conn, $from, $to){
	1900	$fp = $conn->fp;
	1901	if (fputs($fp, "r RENAME \"".$from."\" \"".$to."\"\r\n")){
	1902	do{
	1903	$line=iil_ReadLine($fp, 300);
	1904	}while($line[0]!="r");
	1905	return (iil_ParseResult($line)==0);
	1906	}else{
	1907	return false;
	1908	}
	1909	}
	1910
	1911	function iil_C_DeleteFolder(&$conn, $folder){
	1912	$fp = $conn->fp;
	1913	if (fputs($fp, "d DELETE \"".$folder."\"\r\n")){
	1914	do{
	1915	$line=iil_ReadLine($fp, 300);
	1916	}while($line[0]!="d");
	1917	return (iil_ParseResult($line)==0);
	1918	}else{
	1919	$conn->error = "Couldn't send command\n";
	1920	return false;
	1921	}
	1922	}
	1923
e0ed97	1924	function iil_C_Append(&$conn, $folder, &$message){
4e17e6	1925	if (!$folder) return false;
T	1926	$fp = $conn->fp;
	1927
	1928	$message = str_replace("\r", "", $message);
	1929	$message = str_replace("\n", "\r\n", $message);
	1930
	1931	$len = strlen($message);
	1932	if (!$len) return false;
	1933
	1934	$request="A APPEND \"".$folder."\" (\\Seen) {".$len."}\r\n";
	1935	if (fputs($fp, $request)){
0284c2	1936	$line=iil_ReadLine($fp, 100);
4e17e6	1937	$sent = fwrite($fp, $message."\r\n");
T	1938	flush();
	1939	do{
	1940	$line=iil_ReadLine($fp, 1000);
	1941	}while($line[0]!="A");
	1942
	1943	$result = (iil_ParseResult($line)==0);
8c2e58	1944	if (!$result) $conn->error .= $line."\n";
4e17e6	1945	return $result;
T	1946
	1947	}else{
8c2e58	1948	$conn->error .= "Couldn't send command \"$request\"\n";
4e17e6	1949	return false;
T	1950	}
	1951	}
	1952
	1953
	1954	function iil_C_AppendFromFile(&$conn, $folder, $path){
	1955	if (!$folder) return false;
	1956
	1957	//open message file
	1958	$in_fp = false;
	1959	if (file_exists(realpath($path))) $in_fp = fopen($path, "r");
	1960	if (!$in_fp){
8c2e58	1961	$conn->error .= "Couldn't open $path for reading\n";
4e17e6	1962	return false;
T	1963	}
	1964
	1965	$fp = $conn->fp;
	1966	$len = filesize($path);
	1967	if (!$len) return false;
	1968
	1969	//send APPEND command
	1970	$request="A APPEND \"".$folder."\" (\\Seen) {".$len."}\r\n";
	1971	$bytes_sent = 0;
	1972	if (fputs($fp, $request)){
	1973	$line=iil_ReadLine($fp, 100);
	1974
	1975	//send file
	1976	while(!feof($in_fp)){
	1977	$buffer = fgets($in_fp, 4096);
	1978	$bytes_sent += strlen($buffer);
	1979	fputs($fp, $buffer);
	1980	}
	1981	fclose($in_fp);
	1982
	1983	fputs($fp, "\r\n");
	1984
	1985	//read response
	1986	do{
	1987	$line=iil_ReadLine($fp, 1000);
	1988	}while($line[0]!="A");
	1989
	1990	$result = (iil_ParseResult($line)==0);
8c2e58	1991	if (!$result) $conn->error .= $line."\n";
4e17e6	1992	return $result;
T	1993
	1994	}else{
8c2e58	1995	$conn->error .= "Couldn't send command \"$request\"\n";
4e17e6	1996	return false;
T	1997	}
	1998	}
	1999
	2000
	2001	function iil_C_FetchStructureString(&$conn, $folder, $id){
	2002	$fp = $conn->fp;
	2003	$result=false;
	2004	if (iil_C_Select($conn, $folder)){
	2005	$key = "F1247";
	2006	if (fputs($fp, "$key FETCH $id (BODYSTRUCTURE)\r\n")){
	2007	do{
	2008	$line=chop(iil_ReadLine($fp, 5000));
	2009	if ($line[0]=="*"){
	2010	if (ereg("\}$", $line)){
	2011	preg_match('/(.+)\{([0-9]+)\}/', $line, $match);
	2012	$result = $match[1];
	2013	do{
	2014	$line = chop(iil_ReadLine($fp, 100));
	2015	if (!preg_match("/^$key/", $line)) $result .= $line;
	2016	else $done = true;
	2017	}while(!$done);
	2018	}else{
	2019	$result = $line;
	2020	}
	2021	list($pre, $post) = explode("BODYSTRUCTURE ", $result);
	2022	$result = substr($post, 0, strlen($post)-1); //truncate last ')' and return
	2023	}
	2024	}while (!preg_match("/^$key/",$line));
	2025	}
	2026	}
	2027	return $result;
	2028	}
	2029
	2030	function iil_C_PrintSource(&$conn, $folder, $id, $part){
	2031	$header = iil_C_FetchPartHeader($conn, $folder, $id, $part);
	2032	//echo str_replace("\r", "", $header);
	2033	echo $header;
	2034	echo iil_C_PrintPartBody($conn, $folder, $id, $part);
	2035	}
	2036
	2037	function iil_C_GetQuota(&$conn){
	2038	/*
	2039	b GETQUOTAROOT "INBOX"
	2040	* QUOTAROOT INBOX user/rchijiiwa1
	2041	* QUOTA user/rchijiiwa1 (STORAGE 654 9765)
	2042	b OK Completed
	2043	*/
	2044	$fp = $conn->fp;
	2045	$result=false;
	2046	$quota_line = "";
	2047
	2048	//get line containing quota info
	2049	if (fputs($fp, "QUOT1 GETQUOTAROOT \"INBOX\"\r\n")){
	2050	do{
	2051	$line=chop(iil_ReadLine($fp, 5000));
	2052	if (iil_StartsWith($line, "* QUOTA ")) $quota_line = $line;
	2053	}while(!iil_StartsWith($line, "QUOT1"));
	2054	}
	2055
	2056	//return false if not found, parse if found
	2057	if (!empty($quota_line)){
	2058	$quota_line = eregi_replace("[()]", "", $quota_line);
	2059	$parts = explode(" ", $quota_line);
	2060	$storage_part = array_search("STORAGE", $parts);
	2061	if ($storage_part>0){
	2062	$result = array();
	2063	$used = $parts[$storage_part+1];
	2064	$total = $parts[$storage_part+2];
	2065	$result["used"] = $used;
	2066	$result["total"] = (empty($total)?"??":$total);
	2067	$result["percent"] = (empty($total)?"??":round(($used/$total)*100));
	2068	$result["free"] = 100 - $result["percent"];
	2069	}
	2070	}
	2071
	2072	return $result;
	2073	}
	2074
	2075
	2076	function iil_C_ClearFolder(&$conn, $folder){
	2077	$num_in_trash = iil_C_CountMessages($conn, $folder);
	2078	if ($num_in_trash > 0) iil_C_Delete($conn, $folder, "1:".$num_in_trash);
	2079	return (iil_C_Expunge($conn, $folder) >= 0);
	2080	}
	2081
	2082	?>