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imap.inc
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<?php
/////////////////////////////////////////////////////////
//
// Iloha IMAP Library (IIL)
//
// (C)Copyright 2002 Ryo Chijiiwa <Ryo@IlohaMail.org>
//
// This file is part of IlohaMail. IlohaMail is free software released
// under the GPL license. See enclosed file COPYING for details, or
// see http://www.fsf.org/copyleft/gpl.html
//
/////////////////////////////////////////////////////////
/********************************************************
FILE: include/imap.inc
PURPOSE:
Provide alternative IMAP library that doesn't rely on the standard
C-Client based version. This allows IlohaMail to function regardless
of whether or not the PHP build it's running on has IMAP functionality
built-in.
USEAGE:
Function containing "_C_" in name require connection handler to be
passed as one of the parameters. To obtain connection handler, use
iil_Connect()
VERSION:
IlohaMail-0.9-20050415
CHANGES:
File altered by Thomas Bruederli <roundcube@gmail.com>
to fit enhanced equirements by the RoundCube Webmail:
- Added list of server capabilites and check these before invoking commands
- Added junk flag to iilBasicHeader
- Enhanced error reporting on fsockopen()
- Additional parameter for SORT command
- Removed Call-time pass-by-reference because deprecated
- Parse charset from content-type in iil_C_FetchHeaders()
- Enhanced heaer sorting
- Pass message as reference in iil_C_Append (to save memory)
- Added BCC and REFERENCE to the list of headers to fetch in iil_C_FetchHeaders()
- Leave messageID unchanged in iil_C_FetchHeaders()
- Avoid stripslahes in iil_Connect()
- Added patch to iil_SortHeaders() by Richard Green
- Removed <br> from error messages (better for logging)
- Added patch to iil_C_Sort() enabling UID SORT commands
- Added function iil_C_ID2UID()
- Casting date parts in iil_StrToTime() to avoid mktime() warnings
- Removed some debuggers (echo ...)
********************************************************/
// changed path to work within roundcube webmail
include_once("lib/icl_commons.inc");
if (!$IMAP_USE_HEADER_DATE) $IMAP_USE_INTERNAL_DATE = true;
$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);
$IMAP_SERVER_TZ = date('Z');
$iil_error;
$iil_errornum;
$iil_selected;
class iilConnection{
var $fp;
var $error;
var $errorNum;
var $selected;
var $message;
var $host;
var $cache;
var $uid_cache;
var $do_cache;
var $exists;
var $recent;
var $rootdir;
var $delimiter;
var $capability = array();
}
class iilBasicHeader{
var $id;
var $uid;
var $subject;
var $from;
var $to;
var $cc;
var $replyto;
var $in_reply_to;
var $date;
var $messageID;
var $size;
var $encoding;
var $ctype;
var $flags;
var $timestamp;
var $f;
var $seen;
var $deleted;
var $recent;
var $answered;
var $junk;
var $internaldate;
var $is_reply;
}
class iilThreadHeader{
var $id;
var $sbj;
var $irt;
var $mid;
}
function iil_xor($string, $string2){
$result = "";
$size = strlen($string);
for ($i=0; $i<$size; $i++) $result .= chr(ord($string[$i]) ^ ord($string2[$i]));
return $result;
}
function iil_ReadLine($fp, $size){
$line="";
if ($fp){
do{
$buffer = fgets($fp, 2048);
$line.=$buffer;
}while($buffer[strlen($buffer)-1]!="\n");
}
return $line;
}
function iil_MultLine($fp, $line){
$line = chop($line);
if (ereg('\{[0-9]+\}$', $line)){
$out = "";
preg_match_all('/(.*)\{([0-9]+)\}$/', $line, $a);
$bytes = $a[2][0];
while(strlen($out)<$bytes){
$out.=chop(iil_ReadLine($fp, 1024));
}
$line = $a[1][0]."\"$out\"";
}
return $line;
}
function iil_ReadBytes($fp, $bytes){
$data = "";
$len = 0;
do{
$data.=fread($fp, $bytes-$len);
$len = strlen($data);
}while($len<$bytes);
return $data;
}
function iil_ReadReply($fp){
do{
$line = chop(trim(iil_ReadLine($fp, 1024)));
}while($line[0]=="*");
return $line;
}
function iil_ParseResult($string){
$a=explode(" ", $string);
if (count($a) > 2){
if (strcasecmp($a[1], "OK")==0) return 0;
else if (strcasecmp($a[1], "NO")==0) return -1;
else if (strcasecmp($a[1], "BAD")==0) return -2;
}else return -3;
}
// check if $string starts with $match
function iil_StartsWith($string, $match){
$len = strlen($match);
if ($len==0) return false;
if (strncmp($string, $match, $len)==0) return true;
else return false;
}
function iil_StartsWithI($string, $match){
$len = strlen($match);
if ($len==0) return false;
if (strncasecmp($string, $match, $len)==0) return true;
else return false;
}
function iil_C_Authenticate(&$conn, $user, $pass, $encChallenge){
// initialize ipad, opad
for ($i=0;$i<64;$i++){
$ipad.=chr(0x36);
$opad.=chr(0x5C);
}
// pad $pass so it's 64 bytes
$padLen = 64 - strlen($pass);
for ($i=0;$i<$padLen;$i++) $pass .= chr(0);
// generate hash
$hash = md5(iil_xor($pass,$opad).pack("H*",md5(iil_xor($pass, $ipad).base64_decode($encChallenge))));
// generate reply
$reply = base64_encode($user." ".$hash);
// send result, get reply
fputs($conn->fp, $reply."\r\n");
$line = iil_ReadLine($conn->fp, 1024);
// process result
if (iil_ParseResult($line)==0){
$conn->error .= "";
$conn->errorNum = 0;
return $conn->fp;
}else{
$conn->error .= 'Authentication for '.$user.' failed (AUTH): "'.htmlspecialchars($line)."\"";
$conn->errorNum = -2;
return false;
}
}
function iil_C_Login(&$conn, $user, $password){
fputs($conn->fp, "a001 LOGIN $user \"$password\"\r\n");
do{
$line = iil_ReadReply($conn->fp);
}while(!iil_StartsWith($line, "a001 "));
$a=explode(" ", $line);
if (strcmp($a[1],"OK")==0){
$result=$conn->fp;
$conn->error.="";
$conn->errorNum = 0;
}else{
$result=false;
fclose($conn->fp);
$conn->error .= 'Authentication for '.$user.' failed (LOGIN): "'.htmlspecialchars($line)."\"";
$conn->errorNum = -2;
}
return $result;
}
function iil_ParseNamespace2($str, &$i, $len=0, $l){
if (!$l) $str = str_replace("NIL", "()", $str);
if (!$len) $len = strlen($str);
$data = array();
$in_quotes = false;
$elem = 0;
for($i;$i<$len;$i++){
$c = (string)$str[$i];
if ($c=='(' && !$in_quotes){
$i++;
$data[$elem] = iil_ParseNamespace2($str, $i, $len, $l++);
$elem++;
}else if ($c==')' && !$in_quotes) return $data;
else if ($c=="\\"){
$i++;
if ($in_quotes) $data[$elem].=$c.$str[$i];
}else if ($c=='"'){
$in_quotes = !$in_quotes;
if (!$in_quotes) $elem++;
}else if ($in_quotes){
$data[$elem].=$c;
}
}
return $data;
}
function iil_C_NameSpace(&$conn){
global $my_prefs;
if (!in_array('NAMESPACE', $conn->capability))
return false;
if ($my_prefs["rootdir"]) return true;
fputs($conn->fp, "ns1 NAMESPACE\r\n");
do{
$line = iil_ReadLine($conn->fp, 1024);
if (iil_StartsWith($line, "* NAMESPACE")){
$i = 0;
$data = iil_ParseNamespace2(substr($line,11), $i, 0, 0);
}
}while(!iil_StartsWith($line, "ns1"));
if (!is_array($data)) return false;
$user_space_data = $data[0];
if (!is_array($user_space_data)) return false;
$first_userspace = $user_space_data[0];
if (count($first_userspace)!=2) return false;
$conn->rootdir = $first_userspace[0];
$conn->delimiter = $first_userspace[1];
$my_prefs["rootdir"] = substr($conn->rootdir, 0, -1);
return true;
}
function iil_Connect($host, $user, $password){
global $iil_error, $iil_errornum;
global $ICL_SSL, $ICL_PORT;
global $IMAP_NO_CACHE;
global $my_prefs, $IMAP_USE_INTERNAL_DATE;
$iil_error = "";
$iil_errornum = 0;
//strip slashes
// $user = stripslashes($user);
// $password = stripslashes($password);
//set auth method
$auth_method = "plain";
if (func_num_args() >= 4){
$auth_array = func_get_arg(3);
if (is_array($auth_array)) $auth_method = $auth_array["imap"];
if (empty($auth_method)) $auth_method = "plain";
}
$message = "INITIAL: $auth_method\n";
$result = false;
//initialize connection
$conn = new iilConnection;
$conn->error="";
$conn->errorNum=0;
$conn->selected="";
$conn->user = $user;
$conn->host = $host;
$conn->cache = array();
$conn->do_cache = (function_exists("cache_write")&&!$IMAP_NO_CACHE);
$conn->cache_dirty = array();
if ($my_prefs['sort_field']=='INTERNALDATE') $IMAP_USE_INTERNAL_DATE = true;
else if ($my_prefs['sort_field']=='DATE') $IMAP_USE_INTERNAL_DATE = false;
//echo '<!-- conn sort_field: '.$my_prefs['sort_field'].' //-->';
//check input
if (empty($host)) $iil_error .= "Invalid host\n";
if (empty($user)) $iil_error .= "Invalid user\n";
if (empty($password)) $iil_error .= "Invalid password\n";
if (!empty($iil_error)) return false;
if (!$ICL_PORT) $ICL_PORT = 143;
//check for SSL
if ($ICL_SSL){
$host = "ssl://".$host;
}
//open socket connection
$conn->fp = @fsockopen($host, $ICL_PORT, $errno, $errstr, 10);
if (!$conn->fp){
$iil_error = "Could not connect to $host at port $ICL_PORT: $errstr";
$iil_errornum = -1;
return false;
}
$iil_error.="Socket connection established\r\n";
$line=iil_ReadLine($conn->fp, 300);
if (strcasecmp($auth_method, "check")==0){
//check for supported auth methods
//default to plain text auth
$auth_method = "plain";
//check for CRAM-MD5
fputs($conn->fp, "cp01 CAPABILITY\r\n");
do{
$line = trim(chop(iil_ReadLine($conn->fp, 100)));
$conn->message.="$line\n";
$a = explode(" ", $line);
if ($line[0]=="*"){
while ( list($k, $w) = each($a) ){
if ($w!='*' && $w!='CAPABILITY')
$conn->capability[] = $w;
if ((strcasecmp($w, "AUTH=CRAM_MD5")==0)||
(strcasecmp($w, "AUTH=CRAM-MD5")==0)){
$auth_method = "auth";
}
}
}
}while($a[0]!="cp01");
}
if (strcasecmp($auth_method, "auth")==0){
$conn->message.="Trying CRAM-MD5\n";
//do CRAM-MD5 authentication
fputs($conn->fp, "a000 AUTHENTICATE CRAM-MD5\r\n");
$line = trim(chop(iil_ReadLine($conn->fp, 1024)));
$conn->message.="$line\n";
if ($line[0]=="+"){
$conn->message.='Got challenge: '.htmlspecialchars($line)."\n";
//got a challenge string, try CRAM-5
$result = iil_C_Authenticate($conn, $user, $password, substr($line,2));
$conn->message.= "Tried CRAM-MD5: $result \n";
}else{
$conn->message.='No challenge ('.htmlspecialchars($line)."), try plain\n";
$auth = "plain";
}
}
if ((!$result)||(strcasecmp($auth, "plain")==0)){
//do plain text auth
$result = iil_C_Login($conn, $user, $password);
$conn->message.="Tried PLAIN: $result \n";
}
$conn->message .= $auth;
if ($result){
iil_C_Namespace($conn);
return $conn;
}else{
$iil_error = $conn->error;
$iil_errornum = $conn->errorNum;
return false;
}
}
function iil_Close(&$conn){
iil_C_WriteCache($conn);
if (@fputs($conn->fp, "I LOGOUT\r\n")){
fgets($conn->fp, 1024);
fclose($conn->fp);
$conn->fp = false;
}
}
function iil_ClearCache($user, $host){
}
function iil_C_WriteCache(&$conn){
//echo "<!-- doing iil_C_WriteCache //-->\n";
if (!$conn->do_cache) return false;
if (is_array($conn->cache)){
while(list($folder,$data)=each($conn->cache)){
if ($folder && is_array($data) && $conn->cache_dirty[$folder]){
$key = $folder.".imap";
$result = cache_write($conn->user, $conn->host, $key, $data, true);
//echo "<!-- writing $key $data: $result //-->\n";
}
}
}
}
function iil_C_EnableCache(&$conn){
$conn->do_cache = true;
}
function iil_C_DisableCache(&$conn){
$conn->do_cache = false;
}
function iil_C_LoadCache(&$conn, $folder){
if (!$conn->do_cache) return false;
$key = $folder.".imap";
if (!is_array($conn->cache[$folder])){
$conn->cache[$folder] = cache_read($conn->user, $conn->host, $key);
$conn->cache_dirty[$folder] = false;
}
}
function iil_C_ExpireCachedItems(&$conn, $folder, $message_set){
if (!$conn->do_cache) return; //caching disabled
if (!is_array($conn->cache[$folder])) return; //cache not initialized|empty
if (count($conn->cache[$folder])==0) return; //cache not initialized|empty
$uids = iil_C_FetchHeaderIndex($conn, $folder, $message_set, "UID");
$num_removed = 0;
if (is_array($uids)){
//echo "<!-- unsetting: ".implode(",",$uids)." //-->\n";
while(list($n,$uid)=each($uids)){
unset($conn->cache[$folder][$uid]);
//$conn->cache[$folder][$uid] = false;
//$num_removed++;
}
$conn->cache_dirty[$folder] = true;
//echo '<!--'."\n";
//print_r($conn->cache);
//echo "\n".'//-->'."\n";
}else{
echo "<!-- failed to get uids: $message_set //-->\n";
}
/*
if ($num_removed>0){
$new_cache;
reset($conn->cache[$folder]);
while(list($uid,$item)=each($conn->cache[$folder])){
if ($item) $new_cache[$uid] = $conn->cache[$folder][$uid];
}
$conn->cache[$folder] = $new_cache;
}
*/
}
function iil_ExplodeQuotedString($delimiter, $string){
$quotes=explode("\"", $string);
while ( list($key, $val) = each($quotes))
if (($key % 2) == 1)
$quotes[$key] = str_replace($delimiter, "_!@!_", $quotes[$key]);
$string=implode("\"", $quotes);
$result=explode($delimiter, $string);
while ( list($key, $val) = each($result) )
$result[$key] = str_replace("_!@!_", $delimiter, $result[$key]);
return $result;
}
function iil_CheckForRecent($host, $user, $password, $mailbox){
if (empty($mailbox)) $mailbox="INBOX";
$conn=iil_Connect($host, $user, $password, "plain");
$fp = $conn->fp;
if ($fp){
fputs($fp, "a002 EXAMINE \"$mailbox\"\r\n");
do{
$line=chop(iil_ReadLine($fp, 300));
$a=explode(" ", $line);
if (($a[0]=="*") && (strcasecmp($a[2], "RECENT")==0)) $result=(int)$a[1];
}while (!iil_StartsWith($a[0],"a002"));
fputs($fp, "a003 LOGOUT\r\n");
fclose($fp);
}else $result=-2;
return $result;
}
function iil_C_Select(&$conn, $mailbox){
$fp = $conn->fp;
if (empty($mailbox)) return false;
if (strcmp($conn->selected, $mailbox)==0) return true;
iil_C_LoadCache($conn, $mailbox);
if (fputs($fp, "sel1 SELECT \"$mailbox\"\r\n")){
do{
$line=chop(iil_ReadLine($fp, 300));
$a=explode(" ", $line);
if (count($a) == 3){
if (strcasecmp($a[2], "EXISTS")==0) $conn->exists=(int)$a[1];
if (strcasecmp($a[2], "RECENT")==0) $conn->recent=(int)$a[1];
}
}while (!iil_StartsWith($line, "sel1"));
$a=explode(" ", $line);
if (strcasecmp($a[1],"OK")==0){
$conn->selected = $mailbox;
return true;
}else return false;
}else{
return false;
}
}
function iil_C_CheckForRecent(&$conn, $mailbox){
if (empty($mailbox)) $mailbox="INBOX";
iil_C_Select($conn, $mailbox);
if ($conn->selected==$mailbox) return $conn->recent;
else return false;
}
function iil_C_CountMessages(&$conn, $mailbox, $refresh=false){
if ($refresh) $conn->selected="";
iil_C_Select($conn, $mailbox);
if ($conn->selected==$mailbox) return $conn->exists;
else return false;
}
function iil_SplitHeaderLine($string){
$pos=strpos($string, ":");
if ($pos>0){
$res[0]=substr($string, 0, $pos);
$res[1]=trim(substr($string, $pos+1));
return $res;
}else{
return $string;
}
}
function iil_StrToTime($str){
global $IMAP_MONTHS,$IMAP_SERVER_TZ;
if ($str) $time1 = strtotime($str);
if ($time1 && $time1!=-1) return $time1-$IMAP_SERVER_TZ;
//echo '<!--'.$str.'//-->';
//replace double spaces with single space
$str = trim($str);
$str = str_replace(" ", " ", $str);
//strip off day of week
$pos=strpos($str, " ");
if (!is_numeric(substr($str, 0, $pos))) $str = substr($str, $pos+1);
//explode, take good parts
$a=explode(" ",$str);
//$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);
$month_str=$a[1];
$month=$IMAP_MONTHS[$month_str];
$day=(int)$a[0];
$year=(int)$a[2];
$time=$a[3];
$tz_str = $a[4];
$tz = substr($tz_str, 0, 3);
$ta = explode(":",$time);
$hour=(int)$ta[0]-(int)$tz;
$minute=(int)$ta[1];
$second=(int)$ta[2];
//make UNIX timestamp
$time2 = mktime($hour, $minute, $second, $month, $day, $year);
//echo '<!--'.$time1.' '.$time2.' //-->'."\n";
return $time2;
}
function iil_C_Sort(&$conn, $mailbox, $field, $add='', $is_uid=FALSE, $encoding='US-ASCII'){
/* Do "SELECT" command */
if (!iil_C_Select($conn, $mailbox)) return false;
$field = strtoupper($field);
if ($field=='INTERNALDATE') $field='ARRIVAL';
$fields = array('ARRIVAL'=>1,'CC'=>1,'DATE'=>1,'FROM'=>1,'SIZE'=>1,'SUBJECT'=>1,'TO'=>1);
if (!$fields[$field])
return false;
$is_uid = $is_uid ? 'UID ' : '';
if (!empty($add))
$add = " $add";
$fp = $conn->fp;
$command = 's '. $is_uid .'SORT ('.$field.') '.$encoding.' ALL'."$add\r\n";
$line = $data = '';
if (!fputs($fp, $command)) return false;
do{
$line = chop(iil_ReadLine($fp, 1024));
if (iil_StartsWith($line, '* SORT')) $data.=($data?' ':'').substr($line,7);
}while($line[0]!='s');
if (empty($data)){
$conn->error = $line;
return false;
}
$out = explode(' ',$data);
return $out;
}
function iil_C_FetchHeaderIndex(&$conn, $mailbox, $message_set, $index_field, $normalize=true){
global $IMAP_USE_INTERNAL_DATE;
$c=0;
$result=array();
$fp = $conn->fp;
if (empty($index_field)) $index_field="DATE";
$index_field = strtoupper($index_field);
if (empty($message_set)) return array();
//$fields_a["DATE"] = ($IMAP_USE_INTERNAL_DATE?6:1);
$fields_a['DATE'] = 1;
$fields_a['INTERNALDATE'] = 6;
$fields_a['FROM'] = 1;
$fields_a['REPLY-TO'] = 1;
$fields_a['SENDER'] = 1;
$fields_a['TO'] = 1;
$fields_a['SUBJECT'] = 1;
$fields_a['UID'] = 2;
$fields_a['SIZE'] = 2;
$fields_a['SEEN'] = 3;
$fields_a['RECENT'] = 4;
$fields_a['DELETED'] = 5;
$mode=$fields_a[$index_field];
if (!($mode > 0)) return false;
/* Do "SELECT" command */
if (!iil_C_Select($conn, $mailbox)) return false;
/* FETCH date,from,subject headers */
if ($mode==1){
$key="fhi".($c++);
$request=$key." FETCH $message_set (BODY.PEEK[HEADER.FIELDS ($index_field)])\r\n";
if (!fputs($fp, $request)) return false;
do{
$line=chop(iil_ReadLine($fp, 200));
$a=explode(" ", $line);
if (($line[0]=="*") && ($a[2]=="FETCH") && ($line[strlen($line)-1]!=")")){
$id=$a[1];
$str=$line=chop(iil_ReadLine($fp, 300));
while($line[0]!=")"){ //caution, this line works only in this particular case
$line=chop(iil_ReadLine($fp, 300));
if ($line[0]!=")"){
if (ord($line[0]) <= 32){ //continuation from previous header line
$str.=" ".trim($line);
}
if ((ord($line[0]) > 32) || (strlen($line[0]) == 0)){
list($field, $string) = iil_SplitHeaderLine($str);
if (strcasecmp($field, "date")==0){
$result[$id]=iil_StrToTime($string);
}else{
$result[$id] = str_replace("\"", "", $string);
if ($normalize) $result[$id]=strtoupper($result[$id]);
}
$str=$line;
}
}
}
}
/*
$end_pos = strlen($line)-1;
if (($line[0]=="*") && ($a[2]=="FETCH") && ($line[$end_pos]=="}")){
$id = $a[1];
$pos = strrpos($line, "{")+1;
$bytes = (int)substr($line, $pos, $end_pos-$pos);
$received = 0;
do{
$line = iil_ReadLine($fp, 0);
$received+=strlen($line);
$line = chop($line);
if ($received>$bytes) break;
else if (!$line) continue;
list($field,$string)=explode(": ", $line);
if (strcasecmp($field, "date")==0)
$result[$id] = iil_StrToTime($string);
else if ($index_field!="DATE")
$result[$id]=strtoupper(str_replace("\"", "", $string));
}while($line[0]!=")");
}else{
//one line response, not expected so ignore
}
*/
}while(!iil_StartsWith($line, $key));
}else if ($mode==6){
$key="fhi".($c++);
$request = $key." FETCH $message_set (INTERNALDATE)\r\n";
if (!fputs($fp, $request)) return false;
do{
$line=chop(iil_ReadLine($fp, 200));
if ($line[0]=="*"){
//original: "* 10 FETCH (INTERNALDATE "31-Jul-2002 09:18:02 -0500")"
$paren_pos = strpos($line, "(");
$foo = substr($line, 0, $paren_pos);
$a = explode(" ", $foo);
$id = $a[1];
$open_pos = strpos($line, "\"") + 1;
$close_pos = strrpos($line, "\"");
if ($open_pos && $close_pos){
$len = $close_pos - $open_pos;
$time_str = substr($line, $open_pos, $len);
$result[$id] = strtotime($time_str);
}
}else{
$a = explode(" ", $line);
}
}while(!iil_StartsWith($a[0], $key));
}else{
if ($mode >= 3) $field_name="FLAGS";
else if ($index_field=="SIZE") $field_name="RFC822.SIZE";
else $field_name=$index_field;
/* FETCH uid, size, flags */
$key="fhi".($c++);
$request=$key." FETCH $message_set ($field_name)\r\n";
if (!fputs($fp, $request)) return false;
do{
$line=chop(iil_ReadLine($fp, 200));
$a = explode(" ", $line);
if (($line[0]=="*") && ($a[2]=="FETCH")){
$line=str_replace("(", "", $line);
$line=str_replace(")", "", $line);
$a=explode(" ", $line);
$id=$a[1];
if (isset($result[$id])) continue; //if we already got the data, skip forward
if ($a[3]!=$field_name) continue; //make sure it's returning what we requested
/* Caution, bad assumptions, next several lines */
if ($mode==2) $result[$id]=$a[4];
else{
$haystack=strtoupper($line);
$result[$id]=(strpos($haystack, $index_field) > 0 ? "F" : "N");
}
}
}while(!iil_StartsWith($line, $key));
}
//check number of elements...
list($start_mid,$end_mid)=explode(':',$message_set);
if (is_numeric($start_mid) && is_numeric($end_mid)){
//count how many we should have
$should_have = $end_mid - $start_mid +1;
//if we have less, try and fill in the "gaps"
if (count($result)<$should_have){
for($i=$start_mid;$i<=$end_mid;$i++) if (!isset($result[$i])) $result[$i] = '';
}
}
return $result;
}
function iil_CompressMessageSet($message_set){
//given a comma delimited list of independent mid's,
//compresses by grouping sequences together
//if less than 255 bytes long, let's not bother
if (strlen($message_set)<255) return $message_set;
//see if it's already been compress
if (strpos($message_set,':')!==false) return $message_set;
//separate, then sort
$ids = explode(',',$message_set);
sort($ids);
$result = array();
$start = $prev = $ids[0];
foreach($ids as $id){
$incr = $id - $prev;
if ($incr>1){ //found a gap
if ($start==$prev) $result[] = $prev; //push single id
else $result[] = $start.':'.$prev; //push sequence as start_id:end_id
$start = $id; //start of new sequence
}
$prev = $id;
}
//handle the last sequence/id
if ($start==$prev) $result[] = $prev;
else $result[] = $start.':'.$prev;
//return as comma separated string
return implode(',',$result);
}
function iil_C_UIDsToMIDs(&$conn, $mailbox, $uids){
if (!is_array($uids) || count($uids)==0) return array();
return iil_C_Search($conn, $mailbox, "UID ".implode(",", $uids));
}
function iil_C_UIDToMID(&$conn, $mailbox, $uid){
$result = iil_C_UIDsToMIDs($conn, $mailbox, array($uid));
if (count($result)==1) return $result[0];
else return false;
}
function iil_C_FetchUIDs(&$conn,$mailbox){
global $clock;
$num = iil_C_CountMessages($conn, $mailbox);
if ($num==0) return array();
$message_set = '1'.($num>1?':'.$num:'');
//if cache not enabled, just call iil_C_FetchHeaderIndex on 'UID' field
if (!$conn->do_cache)
return iil_C_FetchHeaderIndex($conn, $mailbox, $message_set, 'UID');
//otherwise, let's check cache first
$key = $mailbox.'.uids';
$cache_good = true;
if ($conn->uid_cache) $data = $conn->uid_cache;
else $data = cache_read($conn->user, $conn->host, $key);
//was anything cached at all?
if ($data===false) $cache_good = -1;
//make sure number of messages were the same
if ($cache_good>0 && $data['n']!=$num) $cache_good = -2;
//if everything's okay so far...
if ($cache_good>0){
//check UIDs of highest mid with current and cached
$temp = iil_C_Search($conn, $mailbox, 'UID '.$data['d'][$num]);
if (!$temp || !is_array($temp) || $temp[0]!=$num) $cache_good=-3;
}
//if cached data's good, return it
if ($cache_good>0){
return $data['d'];
}
//otherwise, we need to fetch it
$data = array('n'=>$num,'d'=>array());
$data['d'] = iil_C_FetchHeaderIndex($conn, $mailbox, $message_set, 'UID');
cache_write($conn->user, $conn->host, $key, $data);
$conn->uid_cache = $data;
return $data['d'];
}
function iil_SortThreadHeaders($headers, $index_a, $uids){
asort($index_a);
$result = array();
foreach($index_a as $mid=>$foobar){
$uid = $uids[$mid];
$result[$uid] = $headers[$uid];
}
return $result;
}
function iil_C_FetchThreadHeaders(&$conn, $mailbox, $message_set){
global $clock;
global $index_a;
if (empty($message_set)) return false;
$result = array();
$uids = iil_C_FetchUIDs($conn, $mailbox);
$debug = false;
/* Get cached records where possible */
if ($conn->do_cache){
$cached = cache_read($conn->user, $conn->host, $mailbox.'.thhd');
if ($cached && is_array($uids) && count($uids)>0){
$needed_set = "";
foreach($uids as $id=>$uid){
if ($cached[$uid]){
$result[$uid] = $cached[$uid];
$result[$uid]->id = $id;
}else $needed_set.=($needed_set?",":"").$id;
}
if ($needed_set) $message_set = $needed_set;
else $message_set = '';
}
}
$message_set = iil_CompressMessageSet($message_set);
if ($debug) echo "Still need: ".$message_set;
/* if we're missing any, get them */
if ($message_set){
/* FETCH date,from,subject headers */
$key="fh";
$fp = $conn->fp;
$request=$key." FETCH $message_set (BODY.PEEK[HEADER.FIELDS (SUBJECT MESSAGE-ID IN-REPLY-TO)])\r\n";
$mid_to_id = array();
if (!fputs($fp, $request)) return false;
do{
$line = chop(iil_ReadLine($fp, 1024));
if ($debug) echo $line."\n";
if (ereg('\{[0-9]+\}$', $line)){
$a = explode(" ", $line);
$new = array();
$new_thhd = new iilThreadHeader;
$new_thhd->id = $a[1];
do{
$line=chop(iil_ReadLine($fp, 1024),"\r\n");
if (iil_StartsWithI($line,'Message-ID:') || (iil_StartsWithI($line,'In-Reply-To:')) || (iil_StartsWithI($line,'SUBJECT:'))){
$pos = strpos($line, ":");
$field_name = substr($line, 0, $pos);
$field_val = substr($line, $pos+1);
$new[strtoupper($field_name)] = trim($field_val);
}else if (ereg('^[[:space:]]', $line)){
$new[strtoupper($field_name)].= trim($line);
}
}while($line[0]!=')');
$new_thhd->sbj = $new['SUBJECT'];
$new_thhd->mid = substr($new['MESSAGE-ID'], 1, -1);
$new_thhd->irt = substr($new['IN-REPLY-TO'], 1, -1);
$result[$uids[$new_thhd->id]] = $new_thhd;
}
}while(!iil_StartsWith($line, "fh"));
}
/* sort headers */
if (is_array($index_a)){
$result = iil_SortThreadHeaders($result, $index_a, $uids);
}
/* write new set to cache */
if ($conn->do_cache){
if (count($result)!=count($cached))
cache_write($conn->user, $conn->host, $mailbox.'.thhd', $result);
}
//echo 'iil_FetchThreadHeaders:'."\n";
//print_r($result);
return $result;
}
function iil_C_BuildThreads2(&$conn, $mailbox, $message_set, &$clock){
global $index_a;
if (empty($message_set)) return false;
$result=array();
$roots=array();
$root_mids = array();
$sub_mids = array();
$strays = array();
$messages = array();
$fp = $conn->fp;
$debug = false;
$sbj_filter_pat = '[a-zA-Z]{2,3}(\[[0-9]*\])?:([[:space:]]*)';
/* Do "SELECT" command */
if (!iil_C_Select($conn, $mailbox)) return false;
/* FETCH date,from,subject headers */
$mid_to_id = array();
$messages = array();
$headers = iil_C_FetchThreadHeaders($conn, $mailbox, $message_set);
if ($clock) $clock->register('fetched headers');
if ($debug) print_r($headers);
/* go through header records */
foreach($headers as $header){
//$id = $header['i'];
//$new = array('id'=>$id, 'MESSAGE-ID'=>$header['m'],
// 'IN-REPLY-TO'=>$header['r'], 'SUBJECT'=>$header['s']);
$id = $header->id;
$new = array('id'=>$id, 'MESSAGE-ID'=>$header->mid,
'IN-REPLY-TO'=>$header->irt, 'SUBJECT'=>$header->sbj);
/* add to message-id -> mid lookup table */
$mid_to_id[$new['MESSAGE-ID']] = $id;
/* if no subject, use message-id */
if (empty($new['SUBJECT'])) $new['SUBJECT'] = $new['MESSAGE-ID'];
/* if subject contains 'RE:' or has in-reply-to header, it's a reply */
$sbj_pre ='';
$has_re = false;
if (eregi($sbj_filter_pat, $new['SUBJECT'])) $has_re = true;
if ($has_re||$new['IN-REPLY-TO']) $sbj_pre = 'RE:';
/* strip out 're:', 'fw:' etc */
if ($has_re) $sbj = ereg_replace($sbj_filter_pat,'', $new['SUBJECT']);
else $sbj = $new['SUBJECT'];
$new['SUBJECT'] = $sbj_pre.$sbj;
/* if subject not a known thread-root, add to list */
if ($debug) echo $id.' '.$new['SUBJECT']."\t".$new['MESSAGE-ID']."\n";
$root_id = $roots[$sbj];
if ($root_id && ($has_re || !$root_in_root[$root_id])){
if ($debug) echo "\tfound root: $root_id\n";
$sub_mids[$new['MESSAGE-ID']] = $root_id;
$result[$root_id][] = $id;
}else if (!isset($roots[$sbj])||(!$has_re&&$root_in_root[$root_id])){
/* try to use In-Reply-To header to find root
unless subject contains 'Re:' */
if ($has_re&&$new['IN-REPLY-TO']){
if ($debug) echo "\tlooking: ".$new['IN-REPLY-TO']."\n";
//reply to known message?
$temp = $sub_mids[$new['IN-REPLY-TO']];
if ($temp){
//found it, root:=parent's root
if ($debug) echo "\tfound parent: ".$new['SUBJECT']."\n";
$result[$temp][] = $id;
$sub_mids[$new['MESSAGE-ID']] = $temp;
$sbj = '';
}else{
//if we can't find referenced parent, it's a "stray"
$strays[$id] = $new['IN-REPLY-TO'];
}
}
//add subject as root
if ($sbj){
if ($debug) echo "\t added to root\n";
$roots[$sbj] = $id;
$root_in_root[$id] = !$has_re;
$sub_mids[$new['MESSAGE-ID']] = $id;
$result[$id] = array($id);
}
if ($debug) echo $new['MESSAGE-ID']."\t".$sbj."\n";
}
}
//now that we've gone through all the messages,
//go back and try and link up the stray threads
if (count($strays)>0){
foreach($strays as $id=>$irt){
$root_id = $sub_mids[$irt];
if (!$root_id || $root_id==$id) continue;
$result[$root_id] = array_merge($result[$root_id],$result[$id]);
unset($result[$id]);
}
}
if ($clock) $clock->register('data prepped');
if ($debug) print_r($roots);
//print_r($result);
return $result;
}
function iil_SortThreads(&$tree, $index, $sort_order='ASC'){
if (!is_array($tree) || !is_array($index)) return false;
//create an id to position lookup table
$i = 0;
foreach($index as $id=>$val){
$i++;
$index[$id] = $i;
}
$max = $i+1;
//for each tree, set array key to position
$itree = array();
foreach($tree as $id=>$node){
if (count($tree[$id])<=1){
//for "threads" with only one message, key is position of that message
$n = $index[$id];
$itree[$n] = array($n=>$id);
}else{
//for "threads" with multiple messages,
$min = $max;
$new_a = array();
foreach($tree[$id] as $mid){
$new_a[$index[$mid]] = $mid; //create new sub-array mapping position to id
$pos = $index[$mid];
if ($pos&&$pos<$min) $min = $index[$mid]; //find smallest position
}
$n = $min; //smallest position of child is thread position
//assign smallest position to root level key
//set children array to one created above
ksort($new_a);
$itree[$n] = $new_a;
}
}
//sort by key, this basically sorts all threads
ksort($itree);
$i=0;
$out=array();
foreach($itree as $k=>$node){
$out[$i] = $itree[$k];
$i++;
}
//return
return $out;
}
function iil_IndexThreads(&$tree){
/* creates array mapping mid to thread id */
if (!is_array($tree)) return false;
$t_index = array();
foreach($tree as $pos=>$kids){
foreach($kids as $kid) $t_index[$kid] = $pos;
}
return $t_index;
}
function iil_C_FetchHeaders(&$conn, $mailbox, $message_set){
global $IMAP_USE_INTERNAL_DATE;
$c=0;
$result=array();
$fp = $conn->fp;
if (empty($message_set)) return array();
/* Do "SELECT" command */
if (!iil_C_Select($conn, $mailbox)){
$conn->error = "Couldn't select $mailbox";
return false;
}
/* Get cached records where possible */
if ($conn->do_cache){
$uids = iil_C_FetchHeaderIndex($conn, $mailbox, $message_set, "UID");
if (is_array($uids) && count($conn->cache[$mailbox]>0)){
$needed_set = "";
while(list($id,$uid)=each($uids)){
if ($conn->cache[$mailbox][$uid]){
$result[$id] = $conn->cache[$mailbox][$uid];
$result[$id]->id = $id;
}else $needed_set.=($needed_set?",":"").$id;
}
//echo "<!-- iil_C_FetchHeader\nMessage Set: $message_set\nNeeded Set:$needed_set\n//-->\n";
if ($needed_set) $message_set = iil_CompressMessageSet($needed_set);
else return $result;
}
}
/* FETCH date,from,subject headers */
$key="fh".($c++);
$request=$key." FETCH $message_set (BODY.PEEK[HEADER.FIELDS (DATE FROM TO SUBJECT REPLY-TO IN-REPLY-TO CC BCC CONTENT-TRANSFER-ENCODING CONTENT-TYPE MESSAGE-ID REFERENCE)])\r\n";
if (!fputs($fp, $request)) return false;
do{
$line=chop(iil_ReadLine($fp, 200));
$a=explode(" ", $line);
if (($line[0]=="*") && ($a[2]=="FETCH")){
$id=$a[1];
$result[$id]=new iilBasicHeader;
$result[$id]->id = $id;
$result[$id]->subject = "";
/*
Start parsing headers. The problem is, some header "lines" take up multiple lines.
So, we'll read ahead, and if the one we're reading now is a valid header, we'll
process the previous line. Otherwise, we'll keep adding the strings until we come
to the next valid header line.
*/
$i = 0;
$lines = array();
do{
$line = chop(iil_ReadLine($fp, 300),"\r\n");
if (ord($line[0])<=32) $lines[$i].=(empty($lines[$i])?"":"\n").trim(chop($line));
else{
$i++;
$lines[$i] = trim(chop($line));
}
}while($line[0]!=")" && strncmp($line, $key, strlen($key))); // patch from "Maksim Rubis" <siburny@hotmail.com>
if(strncmp($line, $key, strlen($key)))
{
//process header, fill iilBasicHeader obj.
// initialize
if (is_array($headers)){
reset($headers);
while ( list($k, $bar) = each($headers) ) $headers[$k] = "";
}
// create array with header field:data
$headers = array();
while ( list($lines_key, $str) = each($lines) ){
list($field, $string) = iil_SplitHeaderLine($str);
$field = strtolower($field);
$headers[$field] = $string;
}
$result[$id]->date = $headers["date"];
$result[$id]->timestamp = iil_StrToTime($headers["date"]);
$result[$id]->from = $headers["from"];
$result[$id]->to = str_replace("\n", " ", $headers["to"]);
$result[$id]->subject = str_replace("\n", "", $headers["subject"]);
$result[$id]->replyto = str_replace("\n", " ", $headers["reply-to"]);
$result[$id]->cc = str_replace("\n", " ", $headers["cc"]);
$result[$id]->bcc = str_replace("\n", " ", $headers["bcc"]);
$result[$id]->encoding = str_replace("\n", " ", $headers["content-transfer-encoding"]);
$result[$id]->ctype = str_replace("\n", " ", $headers["content-type"]);
$result[$id]->in_reply_to = ereg_replace("[\n<>]",'', $headers['in-reply-to']);
$result[$id]->reference = $headers["reference"];
list($result[$id]->ctype, $ctype_add) = explode(";", $headers["content-type"]);
if (preg_match('/charset="?([a-z0-9\-]+)"?/i', $ctype_add, $regs))
$result[$id]->charset = $regs[1];
$messageID = $headers["message-id"];
if (!$messageID) "mid:".$id;
$result[$id]->messageID = $messageID;
}
else {
$a=explode(" ", $line);
}
}
}while(strcmp($a[0], $key)!=0);
/*
FETCH uid, size, flags
Sample reply line: "* 3 FETCH (UID 2417 RFC822.SIZE 2730 FLAGS (\Seen \Deleted))"
*/
$command_key="fh".($c++);
$request= $command_key." FETCH $message_set (UID RFC822.SIZE FLAGS INTERNALDATE)\r\n";
if (!fputs($fp, $request)) return false;
do{
$line=chop(iil_ReadLine($fp, 200));
//$a = explode(" ", $line);
//if (($line[0]=="*") && ($a[2]=="FETCH")){
if ($line[0]=="*"){
//echo "<!-- $line //-->\n";
//get outter most parens
$open_pos = strpos($line, "(") + 1;
$close_pos = strrpos($line, ")");
if ($open_pos && $close_pos){
//extract ID from pre-paren
$pre_str = substr($line, 0, $open_pos);
$pre_a = explode(" ", $line);
$id = $pre_a[1];
//get data
$len = $close_pos - $open_pos;
$str = substr($line, $open_pos, $len);
//swap parents with quotes, then explode
$str = eregi_replace("[()]", "\"", $str);
$a = iil_ExplodeQuotedString(" ", $str);
//did we get the right number of replies?
$parts_count = count($a);
if ($parts_count>=8){
for ($i=0;$i<$parts_count;$i=$i+2){
if (strcasecmp($a[$i],"UID")==0) $result[$id]->uid=$a[$i+1];
else if (strcasecmp($a[$i],"RFC822.SIZE")==0) $result[$id]->size=$a[$i+1];
else if (strcasecmp($a[$i],"INTERNALDATE")==0) $time_str = $a[$i+1];
else if (strcasecmp($a[$i],"FLAGS")==0) $flags_str = $a[$i+1];
}
// process flags
$flags_str = eregi_replace('[\\\"]', "", $flags_str);
$flags_a = explode(" ", $flags_str);
//echo "<!-- ID: $id FLAGS: ".implode(",", $flags_a)." //-->\n";
$result[$id]->seen = false;
$result[$id]->recent = false;
$result[$id]->deleted = false;
$result[$id]->answered = false;
if (is_array($flags_a)){
reset($flags_a);
while (list($key,$val)=each($flags_a)){
if (strcasecmp($val,"Seen")==0) $result[$id]->seen = true;
else if (strcasecmp($val, "Deleted")==0) $result[$id]->deleted=true;
else if (strcasecmp($val, "Recent")==0) $result[$id]->recent = true;
else if (strcasecmp($val, "Answered")==0) $result[$id]->answered = true;
}
$result[$id]->flags=$flags_str;
}
// if time is gmt...
$time_str = str_replace('GMT','+0000',$time_str);
//get timezone
$time_str = substr($time_str, 0, -1);
$time_zone_str = substr($time_str, -5); //extract timezone
$time_str = substr($time_str, 1, -6); //remove quotes
$time_zone = (float)substr($time_zone_str, 1, 2); //get first two digits
if ($time_zone_str[3]!='0') $time_zone += 0.5; //handle half hour offset
if ($time_zone_str[0]=="-") $time_zone = $time_zone * -1.0; //minus?
$result[$id]->internaldate = $time_str;
if ($IMAP_USE_INTERNAL_DATE){
//calculate timestamp
$timestamp = strtotime($time_str); //return's server's time
$na_timestamp = $timestamp;
$timestamp -= $time_zone * 3600; //compensate for tz, get GMT
$result[$id]->timestamp = $timestamp;
}
if ($conn->do_cache){
$uid = $result[$id]->uid;
$conn->cache[$mailbox][$uid] = $result[$id];
$conn->cache_dirty[$mailbox] = true;
}
//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";
}else{
//echo "<!-- ERROR: $id : $str //-->\n";
}
}
}
}while(strpos($line, $command_key)===false);
return $result;
}
function iil_C_FetchHeader(&$conn, $mailbox, $id){
$fp = $conn->fp;
$a=iil_C_FetchHeaders($conn, $mailbox, $id);
if (is_array($a)) return $a[$id];
else return false;
}
function iil_SortHeaders($a, $field, $flag){
if (empty($field)) $field="uid";
$field=strtolower($field);
if ($field=="date"||$field=='internaldate') $field="timestamp";
if (empty($flag)) $flag="ASC";
$flag=strtoupper($flag);
$stripArr = ($field=='subject') ? array('Re: ','Fwd: ','Fw: ',"\"") : array("\"");
$c=count($a);
if ($c>0){
/*
Strategy:
First, we'll create an "index" array.
Then, we'll use sort() on that array,
and use that to sort the main array.
*/
// create "index" array
$index=array();
reset($a);
while (list($key, $val)=each($a)){
if ($field=="timestamp"){
$data = @strtotime($val->date);
if ($data == false)
$data = $val->timestamp;
}
else {
$data = $val->$field;
if (is_string($data))
$data=strtoupper(str_replace($stripArr, "", $data));
}
$index[$key]=$data;
}
// sort index
$i=0;
if ($flag=="ASC") asort($index);
else arsort($index);
// form new array based on index
$result=array();
reset($index);
while (list($key, $val)=each($index)){
$result[$key]=$a[$key];
$i++;
}
}
return $result;
}
function iil_C_Expunge(&$conn, $mailbox){
$fp = $conn->fp;
if (iil_C_Select($conn, $mailbox)){
$c=0;
fputs($fp, "exp1 EXPUNGE\r\n");
do{
$line=chop(iil_ReadLine($fp, 100));
if ($line[0]=="*") $c++;
}while (!iil_StartsWith($line, "exp1"));
if (iil_ParseResult($line) == 0){
$conn->selected = ""; //state has changed, need to reselect
//$conn->exists-=$c;
return $c;
}else{
$conn->error = $line;
return -1;
}
}
return -1;
}
function iil_C_ModFlag(&$conn, $mailbox, $messages, $flag, $mod){
if ($mod!="+" && $mod!="-") return -1;
$fp = $conn->fp;
$flags=array(
"SEEN"=>"\\Seen",
"DELETED"=>"\\Deleted",
"RECENT"=>"\\Recent",
"ANSWERED"=>"\\Answered",
"DRAFT"=>"\\Draft",
"FLAGGED"=>"\\Flagged"
);
$flag=strtoupper($flag);
$flag=$flags[$flag];
if (iil_C_Select($conn, $mailbox)){
$c=0;
fputs($fp, "flg STORE $messages ".$mod."FLAGS (".$flag.")\r\n");
do{
$line=chop(iil_ReadLine($fp, 100));
if ($line[0]=="*") $c++;
}while (!iil_StartsWith($line, "flg"));
if (iil_ParseResult($line) == 0){
iil_C_ExpireCachedItems($conn, $mailbox, $messages);
return $c;
}else{
$conn->error = $line;
return -1;
}
}else{
$conn->error = "Select failed";
return -1;
}
}
function iil_C_Flag(&$conn, $mailbox, $messages, $flag){
return iil_C_ModFlag($conn, $mailbox, $messages, $flag, "+");
}
function iil_C_Unflag(&$conn, $mailbox, $messages, $flag){
return iil_C_ModFlag($conn, $mailbox, $messages, $flag, "-");
}
function iil_C_Delete(&$conn, $mailbox, $messages){
return iil_C_ModFlag($conn, $mailbox, $messages, "DELETED", "+");
}
function iil_C_Undelete(&$conn, $mailbox, $messages){
return iil_C_ModFlag($conn, $mailbox, $messages, "DELETED", "-");
}
function iil_C_Unseen(&$conn, $mailbox, $messages){
return iil_C_ModFlag($conn, $mailbox, $messages, "SEEN", "-");
}
function iil_C_Copy(&$conn, $messages, $from, $to){
$fp = $conn->fp;
if (empty($from) || empty($to)) return -1;
if (iil_C_Select($conn, $from)){
$c=0;
fputs($fp, "cpy1 COPY $messages \"$to\"\r\n");
$line=iil_ReadReply($fp);
return iil_ParseResult($line);
}else{
return -1;
}
}
function iil_FormatSearchDate($month, $day, $year){
$month = (int)$month;
$months=array(
1=>"Jan", 2=>"Feb", 3=>"Mar", 4=>"Apr",
5=>"May", 6=>"Jun", 7=>"Jul", 8=>"Aug",
9=>"Sep", 10=>"Oct", 11=>"Nov", 12=>"Dec"
);
return $day."-".$months[$month]."-".$year;
}
function iil_C_CountUnseen(&$conn, $folder){
$index = iil_C_Search($conn, $folder, "ALL UNSEEN");
if (is_array($index)){
$str = implode(",", $index);
if (empty($str)) return false;
else return count($index);
}else return false;
}
function iil_C_UID2ID(&$conn, $folder, $uid){
if ($uid > 0){
$id_a = iil_C_Search($conn, $folder, "UID $uid");
if (is_array($id_a)){
$count = count($id_a);
if ($count > 1) return false;
else return $id_a[0];
}
}
return false;
}
function iil_C_ID2UID(&$conn, $folder, $id){
$fp = $conn->fp;
$result=-1;
if ($id > 0) {
if (iil_C_Select($conn, $folder)){
$key = "FUID";
if (fputs($fp, "$key FETCH $id (UID)\r\n")){
do{
$line=chop(iil_ReadLine($fp, 1024));
if (eregi("^\* $id FETCH \(UID (.*)\)", $line, $r)){
$result = $r[1];
}
} while (!preg_match("/^$key/", $line));
}
}
}
return $result;
}
function iil_C_Search(&$conn, $folder, $criteria){
$fp = $conn->fp;
if (iil_C_Select($conn, $folder)){
$c=0;
$query = "srch1 SEARCH ".chop($criteria)."\r\n";
fputs($fp, $query);
do{
$line=trim(chop(iil_ReadLine($fp, 10000)));
if (eregi("^\* SEARCH", $line)){
$str = trim(substr($line, 8));
$messages = explode(" ", $str);
}
}while(!iil_StartsWith($line, "srch1"));
$result_code=iil_ParseResult($line);
if ($result_code==0) return $messages;
else{
$conn->error = "iil_C_Search: ".$line."\n";
return false;
}
}else{
$conn->error = "iil_C_Search: Couldn't select \"$folder\"\n";
return false;
}
}
function iil_C_Move(&$conn, $messages, $from, $to){
$fp = $conn->fp;
if (!$from || !$to) return -1;
$r=iil_C_Copy($conn, $messages, $from,$to);
if ($r==0){
return iil_C_Delete($conn, $from, $messages);
}else{
return $r;
}
}
function iil_C_GetHierarchyDelimiter(&$conn){
if ($conn->delimiter) return $conn->delimiter;
$fp = $conn->fp;
$delimiter = false;
//try (LIST "" ""), should return delimiter (RFC2060 Sec 6.3.8)
if (!fputs($fp, "ghd LIST \"\" \"\"\r\n")) return false;
do{
$line=iil_ReadLine($fp, 500);
if ($line[0]=="*"){
$line = rtrim($line);
$a=iil_ExplodeQuotedString(" ", $line);
if ($a[0]=="*") $delimiter = str_replace("\"", "", $a[count($a)-2]);
}
}while (!iil_StartsWith($line, "ghd"));
if (strlen($delimiter)>0) return $delimiter;
//if that fails, try namespace extension
//try to fetch namespace data
fputs($conn->fp, "ns1 NAMESPACE\r\n");
do{
$line = iil_ReadLine($conn->fp, 1024);
if (iil_StartsWith($line, "* NAMESPACE")){
$i = 0;
$data = iil_ParseNamespace2(substr($line,11), $i, 0, 0);
}
}while(!iil_StartsWith($line, "ns1"));
if (!is_array($data)) return false;
//extract user space data (opposed to global/shared space)
$user_space_data = $data[0];
if (!is_array($user_space_data)) return false;
//get first element
$first_userspace = $user_space_data[0];
if (!is_array($first_userspace)) return false;
//extract delimiter
$delimiter = $first_userspace[1];
return $delimiter;
}
function iil_C_ListMailboxes(&$conn, $ref, $mailbox){
global $IGNORE_FOLDERS;
$ignore = $IGNORE_FOLDERS[strtolower($conn->host)];
$fp = $conn->fp;
if (empty($mailbox)) $mailbox="*";
if (empty($ref) && $conn->rootdir) $ref = $conn->rootdir;
// send command
if (!fputs($fp, "lmb LIST \"".$ref."\" \"$mailbox\"\r\n")) return false;
$i=0;
// get folder list
do{
$line=iil_ReadLine($fp, 500);
$line=iil_MultLine($fp, $line);
$a = explode(" ", $line);
if (($line[0]=="*") && ($a[1]=="LIST")){
$line = rtrim($line);
// split one line
$a=iil_ExplodeQuotedString(" ", $line);
// last string is folder name
$folder = str_replace("\"", "", $a[count($a)-1]);
if (empty($ignore) || (!empty($ignore) && !eregi($ignore, $folder))) $folders[$i] = $folder;
// second from last is delimiter
$delim = str_replace("\"", "", $a[count($a)-2]);
// is it a container?
$i++;
}
}while (!iil_StartsWith($line, "lmb"));
if (is_array($folders)){
if (!empty($ref)){
// if rootdir was specified, make sure it's the first element
// some IMAP servers (i.e. Courier) won't return it
if ($ref[strlen($ref)-1]==$delim) $ref = substr($ref, 0, strlen($ref)-1);
if ($folders[0]!=$ref) array_unshift($folders, $ref);
}
return $folders;
}else if (iil_ParseResult($line)==0){
return array('INBOX');
}else{
$conn->error = $line;
return false;
}
}
function iil_C_ListSubscribed(&$conn, $ref, $mailbox){
global $IGNORE_FOLDERS;
$ignore = $IGNORE_FOLDERS[strtolower($conn->host)];
$fp = $conn->fp;
if (empty($mailbox)) $mailbox = "*";
if (empty($ref) && $conn->rootdir) $ref = $conn->rootdir;
$folders = array();
// send command
if (!fputs($fp, "lsb LSUB \"".$ref."\" \"".$mailbox."\"\r\n")){
$conn->error = "Couldn't send LSUB command\n";
return false;
}
$i=0;
// get folder list
do{
$line=iil_ReadLine($fp, 500);
$line=iil_MultLine($fp, $line);
$a = explode(" ", $line);
if (($line[0]=="*") && ($a[1]=="LSUB")){
$line = rtrim($line);
// split one line
$a=iil_ExplodeQuotedString(" ", $line);
// last string is folder name
//$folder = UTF7DecodeString(str_replace("\"", "", $a[count($a)-1]));
$folder = str_replace("\"", "", $a[count($a)-1]);
if ((!in_array($folder, $folders)) && (empty($ignore) || (!empty($ignore) && !eregi($ignore, $folder)))) $folders[$i] = $folder;
// second from last is delimiter
$delim = str_replace("\"", "", $a[count($a)-2]);
// is it a container?
$i++;
}
}while (!iil_StartsWith($line, "lsb"));
if (is_array($folders)){
if (!empty($ref)){
// if rootdir was specified, make sure it's the first element
// some IMAP servers (i.e. Courier) won't return it
if ($ref[strlen($ref)-1]==$delim) $ref = substr($ref, 0, strlen($ref)-1);
if ($folders[0]!=$ref) array_unshift($folders, $ref);
}
return $folders;
}else{
$conn->error = $line;
return false;
}
}
function iil_C_Subscribe(&$conn, $folder){
$fp = $conn->fp;
$query = "sub1 SUBSCRIBE \"".$folder."\"\r\n";
fputs($fp, $query);
$line=trim(chop(iil_ReadLine($fp, 10000)));
return iil_ParseResult($line);
}
function iil_C_UnSubscribe(&$conn, $folder){
$fp = $conn->fp;
$query = "usub1 UNSUBSCRIBE \"".$folder."\"\r\n";
fputs($fp, $query);
$line=trim(chop(iil_ReadLine($fp, 10000)));
return iil_ParseResult($line);
}
function iil_C_FetchPartHeader(&$conn, $mailbox, $id, $part){
$fp = $conn->fp;
$result=false;
if (($part==0)||(empty($part))) $part="HEADER";
else $part.=".MIME";
if (iil_C_Select($conn, $mailbox)){
$key="fh".($c++);
$request=$key." FETCH $id (BODY.PEEK[$part])\r\n";
if (!fputs($fp, $request)) return false;
do{
$line=chop(iil_ReadLine($fp, 200));
$a=explode(" ", $line);
if (($line[0]=="*") && ($a[2]=="FETCH") && ($line[strlen($line)-1]!=")")){
$line=iil_ReadLine($fp, 300);
while(chop($line)!=")"){
$result.=$line;
$line=iil_ReadLine($fp, 300);
}
}
}while(strcmp($a[0], $key)!=0);
}
return $result;
}
function iil_C_HandlePartBody(&$conn, $mailbox, $id, $part, $mode){
/* modes:
1: return string
2: print
3: base64 and print
*/
$fp = $conn->fp;
$result=false;
if (($part==0)||(empty($part))) $part="TEXT";
if (iil_C_Select($conn, $mailbox)){
$reply_key="* ".$id;
// format request
$key="ftch".($c++)." ";
$request=$key."FETCH $id (BODY.PEEK[$part])\r\n";
// send request
if (!fputs($fp, $request)) return false;
// receive reply line
do{
$line = chop(iil_ReadLine($fp, 1000));
$a = explode(" ", $line);
}while ($a[2]!="FETCH");
$len = strlen($line);
if ($line[$len-1] == ")"){
//one line response, get everything between first and last quotes
$from = strpos($line, "\"") + 1;
$to = strrpos($line, "\"");
$len = $to - $from;
if ($mode==1) $result = substr($line, $from, $len);
else if ($mode==2) echo substr($line, $from, $len);
else if ($mode==3) echo base64_decode(substr($line, $from, $len));
}else if ($line[$len-1] == "}"){
//multi-line request, find sizes of content and receive that many bytes
$from = strpos($line, "{") + 1;
$to = strrpos($line, "}");
$len = $to - $from;
$sizeStr = substr($line, $from, $len);
$bytes = (int)$sizeStr;
$received = 0;
while ($received < $bytes){
$remaining = $bytes - $received;
$line = iil_ReadLine($fp, 1024);
$len = strlen($line);
if ($len > $remaining) substr($line, 0, $remaining);
$received += strlen($line);
if ($mode==1) $result .= chop($line)."\n";
else if ($mode==2){ echo chop($line)."\n"; flush(); }
else if ($mode==3){ echo base64_decode($line); flush(); }
}
}
// read in anything up until 'til last line
do{
$line = iil_ReadLine($fp, 1024);
}while(!iil_StartsWith($line, $key));
if ($result){
$result = chop($result);
return $result; // substr($result, 0, strlen($result)-1);
}else return false;
}else{
echo "Select failed.";
}
if ($mode==1) return $result;
else return $received;
}
function iil_C_FetchPartBody(&$conn, $mailbox, $id, $part){
return iil_C_HandlePartBody($conn, $mailbox, $id, $part, 1);
}
function iil_C_PrintPartBody(&$conn, $mailbox, $id, $part){
iil_C_HandlePartBody($conn, $mailbox, $id, $part, 2);
}
function iil_C_PrintBase64Body(&$conn, $mailbox, $id, $part){
iil_C_HandlePartBody($conn, $mailbox, $id, $part, 3);
}
function iil_C_CreateFolder(&$conn, $folder){
$fp = $conn->fp;
if (fputs($fp, "c CREATE \"".$folder."\"\r\n")){
do{
$line=iil_ReadLine($fp, 300);
}while($line[0]!="c");
$conn->error = $line;
return (iil_ParseResult($line)==0);
}else{
return false;
}
}
function iil_C_RenameFolder(&$conn, $from, $to){
$fp = $conn->fp;
if (fputs($fp, "r RENAME \"".$from."\" \"".$to."\"\r\n")){
do{
$line=iil_ReadLine($fp, 300);
}while($line[0]!="r");
return (iil_ParseResult($line)==0);
}else{
return false;
}
}
function iil_C_DeleteFolder(&$conn, $folder){
$fp = $conn->fp;
if (fputs($fp, "d DELETE \"".$folder."\"\r\n")){
do{
$line=iil_ReadLine($fp, 300);
}while($line[0]!="d");
return (iil_ParseResult($line)==0);
}else{
$conn->error = "Couldn't send command\n";
return false;
}
}
function iil_C_Append(&$conn, $folder, &$message){
if (!$folder) return false;
$fp = $conn->fp;
$message = str_replace("\r", "", $message);
$message = str_replace("\n", "\r\n", $message);
$len = strlen($message);
if (!$len) return false;
$request="A APPEND \"".$folder."\" (\\Seen) {".$len."}\r\n";
if (fputs($fp, $request)){
$line=iil_ReadLine($fp, 100);
$sent = fwrite($fp, $message."\r\n");
flush();
do{
$line=iil_ReadLine($fp, 1000);
}while($line[0]!="A");
$result = (iil_ParseResult($line)==0);
if (!$result) $conn->error .= $line."\n";
return $result;
}else{
$conn->error .= "Couldn't send command \"$request\"\n";
return false;
}
}
function iil_C_AppendFromFile(&$conn, $folder, $path){
if (!$folder) return false;
//open message file
$in_fp = false;
if (file_exists(realpath($path))) $in_fp = fopen($path, "r");
if (!$in_fp){
$conn->error .= "Couldn't open $path for reading\n";
return false;
}
$fp = $conn->fp;
$len = filesize($path);
if (!$len) return false;
//send APPEND command
$request="A APPEND \"".$folder."\" (\\Seen) {".$len."}\r\n";
$bytes_sent = 0;
if (fputs($fp, $request)){
$line=iil_ReadLine($fp, 100);
//send file
while(!feof($in_fp)){
$buffer = fgets($in_fp, 4096);
$bytes_sent += strlen($buffer);
fputs($fp, $buffer);
}
fclose($in_fp);
fputs($fp, "\r\n");
//read response
do{
$line=iil_ReadLine($fp, 1000);
}while($line[0]!="A");
$result = (iil_ParseResult($line)==0);
if (!$result) $conn->error .= $line."\n";
return $result;
}else{
$conn->error .= "Couldn't send command \"$request\"\n";
return false;
}
}
function iil_C_FetchStructureString(&$conn, $folder, $id){
$fp = $conn->fp;
$result=false;
if (iil_C_Select($conn, $folder)){
$key = "F1247";
if (fputs($fp, "$key FETCH $id (BODYSTRUCTURE)\r\n")){
do{
$line=chop(iil_ReadLine($fp, 5000));
if ($line[0]=="*"){
if (ereg("\}$", $line)){
preg_match('/(.+)\{([0-9]+)\}/', $line, $match);
$result = $match[1];
do{
$line = chop(iil_ReadLine($fp, 100));
if (!preg_match("/^$key/", $line)) $result .= $line;
else $done = true;
}while(!$done);
}else{
$result = $line;
}
list($pre, $post) = explode("BODYSTRUCTURE ", $result);
$result = substr($post, 0, strlen($post)-1); //truncate last ')' and return
}
}while (!preg_match("/^$key/",$line));
}
}
return $result;
}
function iil_C_PrintSource(&$conn, $folder, $id, $part){
$header = iil_C_FetchPartHeader($conn, $folder, $id, $part);
//echo str_replace("\r", "", $header);
echo $header;
echo iil_C_PrintPartBody($conn, $folder, $id, $part);
}
function iil_C_GetQuota(&$conn){
/*
b GETQUOTAROOT "INBOX"
* QUOTAROOT INBOX user/rchijiiwa1
* QUOTA user/rchijiiwa1 (STORAGE 654 9765)
b OK Completed
*/
$fp = $conn->fp;
$result=false;
$quota_line = "";
//get line containing quota info
if (fputs($fp, "QUOT1 GETQUOTAROOT \"INBOX\"\r\n")){
do{
$line=chop(iil_ReadLine($fp, 5000));
if (iil_StartsWith($line, "* QUOTA ")) $quota_line = $line;
}while(!iil_StartsWith($line, "QUOT1"));
}
//return false if not found, parse if found
if (!empty($quota_line)){
$quota_line = eregi_replace("[()]", "", $quota_line);
$parts = explode(" ", $quota_line);
$storage_part = array_search("STORAGE", $parts);
if ($storage_part>0){
$result = array();
$used = $parts[$storage_part+1];
$total = $parts[$storage_part+2];
$result["used"] = $used;
$result["total"] = (empty($total)?"??":$total);
$result["percent"] = (empty($total)?"??":round(($used/$total)*100));
$result["free"] = 100 - $result["percent"];
}
}
return $result;
}
function iil_C_ClearFolder(&$conn, $folder){
$num_in_trash = iil_C_CountMessages($conn, $folder);
if ($num_in_trash > 0) iil_C_Delete($conn, $folder, "1:".$num_in_trash);
return (iil_C_Expunge($conn, $folder) >= 0);
}
?>

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