githubFork/roundcubemail.git

thomascube

2005-10-03 6dc0269fcc9f11fbd53da1fb647237ab73cf394d

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