githubFork/roundcubemail.git

thomascube

2006-08-10 87e3ed6ed09a9fcd3cab45a6ce674396e51b95bb

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