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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()
- Escape quotes and backslashes in iil_C_Login()
- 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
- Also acceppt LIST responses in iil_C_ListSubscribed()
- Sanity check of $message_set in iil_C_FetchHeaders(), iil_C_FetchHeaderIndex(), iil_C_FetchThreadHeaders()
- Implemented UID FETCH in iil_C_FetchHeaders()
- Abort do-loop on socket errors (fgets returns false)
- $ICL_SSL is not boolean anymore but contains the connection schema (ssl or tls)
- Removed some debuggers (echo ...)
File altered by Aleksander Machniak <alec@alec.pl>
- trim(chop()) replaced by trim()
- added iil_Escape()/iil_UnEscape() with support for " and \ in folder names
- support \ character in username in iil_C_Login()
- fixed iil_MultLine(): use iil_ReadBytes() instead of iil_ReadLine()
- fixed iil_C_FetchStructureString() to handle many literal strings in response
- removed hardcoded data size in iil_ReadLine()
- added iil_PutLine() wrapper for fputs()
- code cleanup and identation fixes
- removed flush() calls in iil_C_HandlePartBody() to prevent from memory leak (#1485187)
- don't return "??" from iil_C_GetQuota()
- RFC3501 [7.1] don't call CAPABILITY if was returned in server
optional resposne in iil_Connect(), added iil_C_GetCapability()
- remove 'undisclosed-recipients' string from 'To' header
- iil_C_HandlePartBody(): added 6th argument and fixed endless loop
- added iil_PutLineC()
- fixed iil_C_Sort() to support very long and/or divided responses
- added BYE/BAD response simple support for endless loop prevention
- added 3rd argument in iil_StartsWith* functions
- fix iil_C_FetchPartHeader() in some cases by use of iil_C_HandlePartBody()
- allow iil_C_HandlePartBody() to fetch whole message
- optimize iil_C_FetchHeaders() to use only one FETCH command
- added 4th argument to iil_Connect()
- allow setting rootdir and delimiter before connect
- support multiquota result
- include BODYSTRUCTURE in iil_C_FetchHeaders()
- added iil_C_FetchMIMEHeaders() function
- added \* flag support
- use PREG instead of EREG
- removed caching functions
- handling connection startup response
- added UID EXPUNGE support
- fixed problem with double quotes and spaces in folder names in LIST and LSUB
********************************************************/
/**
* @todo Possibly clean up more CS.
* @todo Try to replace most double-quotes with single-quotes.
* @todo Split this file into smaller files.
* @todo Refactor code.
* @todo Replace echo-debugging (make it adhere to config setting and log)
*/
if (!isset($IMAP_USE_HEADER_DATE) || !$IMAP_USE_HEADER_DATE) {
$IMAP_USE_INTERNAL_DATE = true;
}
/**
* @todo Maybe use date() to generate this.
*/
$GLOBALS['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);
$GLOBALS['IMAP_SERVER_TZ'] = date('Z');
$GLOBALS['IMAP_FLAGS'] = array(
'SEEN' => '\\Seen',
'DELETED' => '\\Deleted',
'RECENT' => '\\Recent',
'ANSWERED' => '\\Answered',
'DRAFT' => '\\Draft',
'FLAGGED' => '\\Flagged',
'FORWARDED' => '$Forwarded',
'MDNSENT' => '$MDNSent',
'*' => '\\*',
);
$iil_error;
$iil_errornum;
$iil_selected;
/**
* @todo Change class vars to public/private
*/
class iilConnection
{
var $fp;
var $error;
var $errorNum;
var $selected;
var $message;
var $host;
var $exists;
var $recent;
var $rootdir;
var $delimiter;
var $capability = array();
var $permanentflags = array();
var $capability_readed = false;
}
/**
* @todo Change class vars to public/private
*/
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 $charset;
var $ctype;
var $flags;
var $timestamp;
var $f;
var $body_structure;
var $internaldate;
var $references;
var $priority;
var $mdn_to;
var $mdn_sent = false;
var $is_draft = false;
var $seen = false;
var $deleted = false;
var $recent = false;
var $answered = false;
var $forwarded = false;
var $junk = false;
var $flagged = false;
var $others = array();
}
/**
* @todo Change class vars to public/private
*/
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 $result;
}
function iil_PutLine($fp, $string, $endln=true) {
// console('C: '. rtrim($string));
return fputs($fp, $string . ($endln ? "\r\n" : ''));
}
// iil_PutLine replacement with Command Continuation Requests (RFC3501 7.5) support
function iil_PutLineC($fp, $string, $endln=true) {
if ($endln)
$string .= "\r\n";
$res = 0;
if ($parts = preg_split('/(\{[0-9]+\}\r\n)/m', $string, -1, PREG_SPLIT_DELIM_CAPTURE)) {
for($i=0, $cnt=count($parts); $i<$cnt; $i++) {
if(preg_match('/^\{[0-9]+\}\r\n$/', $parts[$i+1])) {
$res += iil_PutLine($fp, $parts[$i].$parts[$i+1], false);
$line = iil_ReadLine($fp, 1000);
// handle error in command
if ($line[0] != '+')
return false;
$i++;
}
else
$res += iil_PutLine($fp, $parts[$i], false);
}
}
return $res;
}
function iil_ReadLine($fp, $size=1024) {
$line = '';
if (!$fp) {
return $line;
}
if (!$size) {
$size = 1024;
}
do {
$buffer = fgets($fp, $size);
if ($buffer === false) {
break;
}
// console('S: '. chop($buffer));
$line .= $buffer;
} while ($buffer[strlen($buffer)-1] != "\n");
return $line;
}
function iil_MultLine($fp, $line, $escape=false) {
$line = chop($line);
if (preg_match('/\{[0-9]+\}$/', $line)) {
$out = '';
preg_match_all('/(.*)\{([0-9]+)\}$/', $line, $a);
$bytes = $a[2][0];
while (strlen($out) < $bytes) {
$line = iil_ReadBytes($fp, $bytes);
$out .= $line;
}
$line = $a[1][0] . '"' . ($escape ? iil_Escape($out) : $out) . '"';
// console('[...] '. $out);
}
return $line;
}
function iil_ReadBytes($fp, $bytes) {
$data = '';
$len = 0;
do {
$data .= fread($fp, $bytes-$len);
if ($len == strlen($data)) {
break; //nothing was read -> exit to avoid apache lockups
}
$len = strlen($data);
} while ($len < $bytes);
return $data;
}
function iil_ReadReply($fp) {
do {
$line = trim(iil_ReadLine($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($a[1], 'BAD') == 0) {
return -2;
} else if (strcasecmp($a[1], 'BYE') == 0) {
return -3;
}
}
return -4;
}
// check if $string starts with $match (or * BYE/BAD)
function iil_StartsWith($string, $match, $error=false) {
$len = strlen($match);
if ($len == 0) {
return false;
}
if (strncmp($string, $match, $len) == 0) {
return true;
}
if ($error && preg_match('/^\* (BYE|BAD) /i', $string)) {
return true;
}
return false;
}
function iil_StartsWithI($string, $match, $bye=false) {
$len = strlen($match);
if ($len == 0) {
return false;
}
if (strncasecmp($string, $match, $len) == 0) {
return true;
}
if ($bye && strncmp($string, '* BYE ', 6) == 0) {
return true;
}
return false;
}
function iil_Escape($string)
{
return strtr($string, array('"'=>'\\"', '\\' => '\\\\'));
}
function iil_UnEscape($string)
{
return strtr($string, array('\\"'=>'"', '\\\\' => '\\'));
}
function iil_C_GetCapability(&$conn, $name)
{
if (in_array($name, $conn->capability)) {
return true;
}
else if ($conn->capability_readed) {
return false;
}
// get capabilities (only once) because initial
// optional CAPABILITY response may differ
$conn->capability = array();
iil_PutLine($conn->fp, "cp01 CAPABILITY");
do {
$line = trim(iil_ReadLine($conn->fp, 1024));
$a = explode(' ', $line);
if ($line[0] == '*') {
while (list($k, $w) = each($a)) {
if ($w != '*' && $w != 'CAPABILITY')
$conn->capability[] = strtoupper($w);
}
}
} while ($a[0] != 'cp01');
$conn->capability_readed = true;
if (in_array($name, $conn->capability)) {
return true;
}
return false;
}
function iil_C_ClearCapability(&$conn)
{
$conn->capability = array();
$conn->capability_readed = false;
}
function iil_C_Authenticate(&$conn, $user, $pass, $encChallenge) {
$ipad = '';
$opad = '';
// initialize ipad, opad
for ($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 . ' ' . $hash);
// send result, get reply
iil_PutLine($conn->fp, $reply);
$line = iil_ReadLine($conn->fp, 1024);
// process result
$result = iil_ParseResult($line);
if ($result == 0) {
$conn->error .= '';
$conn->errorNum = 0;
return $conn->fp;
}
if ($result == -3) fclose($conn->fp); // BYE response
$conn->error .= 'Authentication for ' . $user . ' failed (AUTH): "';
$conn->error .= htmlspecialchars($line) . '"';
$conn->errorNum = $result;
return $result;
}
function iil_C_Login(&$conn, $user, $password) {
iil_PutLine($conn->fp, 'a001 LOGIN "'.iil_Escape($user).'" "'.iil_Escape($password).'"');
do {
$line = iil_ReadReply($conn->fp);
if ($line === false) {
break;
}
} while (!iil_StartsWith($line, 'a001 ', true));
// process result
$result = iil_ParseResult($line);
if ($result == 0) {
$conn->error .= '';
$conn->errorNum = 0;
return $conn->fp;
}
fclose($conn->fp);
$conn->error .= 'Authentication for ' . $user . ' failed (LOGIN): "';
$conn->error .= htmlspecialchars($line)."\"";
$conn->errorNum = $result;
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 $my_prefs;
if (isset($my_prefs['rootdir']) && is_string($my_prefs['rootdir'])) {
$conn->rootdir = $my_prefs['rootdir'];
return true;
}
if (!iil_C_GetCapability($conn, 'NAMESPACE')) {
return false;
}
iil_PutLine($conn->fp, "ns1 NAMESPACE");
do {
$line = iil_ReadLine($conn->fp, 1024);
if (iil_StartsWith($line, '* NAMESPACE')) {
$i = 0;
$line = iil_UnEscape($line);
$data = iil_ParseNamespace2(substr($line,11), $i, 0, 0);
}
} while (!iil_StartsWith($line, 'ns1', true));
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);
$my_prefs['delimiter'] = $conn->delimiter;
return true;
}
function iil_Connect($host, $user, $password, $options=null) {
global $iil_error, $iil_errornum;
global $ICL_SSL, $ICL_PORT;
global $my_prefs, $IMAP_USE_INTERNAL_DATE;
$iil_error = '';
$iil_errornum = 0;
// set some imap options
if (is_array($options)) {
foreach($options as $optkey => $optval) {
if ($optkey == 'imap') {
$auth_method = $optval;
} else if ($optkey == 'rootdir') {
$my_prefs['rootdir'] = $optval;
} else if ($optkey == 'delimiter') {
$my_prefs['delimiter'] = $optval;
}
}
}
if (empty($auth_method))
$auth_method = 'check';
$message = "INITIAL: $auth_method\n";
$result = false;
// initialize connection
$conn = new iilConnection;
$conn->error = '';
$conn->errorNum = 0;
$conn->selected = '';
$conn->user = $user;
$conn->host = $host;
if ($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 = "Empty host";
$iil_errornum = -1;
return false;
}
if (empty($user)) {
$iil_error = "Empty user";
$iil_errornum = -1;
return false;
}
if (empty($password)) {
$iil_error = "Empty password";
$iil_errornum = -1;
return false;
}
if (!$ICL_PORT) {
$ICL_PORT = 143;
}
//check for SSL
if ($ICL_SSL && $ICL_SSL != 'tls') {
$host = $ICL_SSL . '://' . $host;
}
$conn->fp = fsockopen($host, $ICL_PORT, $errno, $errstr, 10);
if (!$conn->fp) {
$iil_error = "Could not connect to $host at port $ICL_PORT: $errstr";
$iil_errornum = -2;
return false;
}
stream_set_timeout($conn->fp, 10);
$line = stream_get_line($conn->fp, 8192, "\r\n");
// Connected to wrong port or connection error?
if (!preg_match('/^\* (OK|PREAUTH)/i', $line)) {
if ($line)
$iil_error = "Wrong startup greeting ($host:$ICL_PORT): $line";
else
$iil_error = "Empty startup greeting ($host:$ICL_PORT)";
$iil_errornum = -2;
return false;
}
// RFC3501 [7.1] optional CAPABILITY response
if (preg_match('/\[CAPABILITY ([^]]+)\]/i', $line, $matches)) {
$conn->capability = explode(' ', strtoupper($matches[1]));
}
$conn->message .= $line;
// TLS connection
if ($ICL_SSL == 'tls' && iil_C_GetCapability($conn, 'STARTTLS')) {
if (version_compare(PHP_VERSION, '5.1.0', '>=')) {
iil_PutLine($conn->fp, 'stls000 STARTTLS');
$line = iil_ReadLine($conn->fp, 4096);
if (!iil_StartsWith($line, 'stls000 OK')) {
$iil_error = "Server responded to STARTTLS with: $line";
$iil_errornum = -2;
return false;
}
if (!stream_socket_enable_crypto($conn->fp, true, STREAM_CRYPTO_METHOD_TLS_CLIENT)) {
$iil_error = "Unable to negotiate TLS";
$iil_errornum = -2;
return false;
}
// Now we're authenticated, capabilities need to be reread
iil_C_ClearCapability($conn);
}
}
if (strcasecmp($auth_method, "check") == 0) {
//check for supported auth methods
if (iil_C_GetCapability($conn, 'AUTH=CRAM-MD5') || iil_C_GetCapability($conn, 'AUTH=CRAM_MD5')) {
$auth_method = 'auth';
}
else {
//default to plain text auth
$auth_method = 'plain';
}
}
if (strcasecmp($auth_method, 'auth') == 0) {
$conn->message .= "Trying CRAM-MD5\n";
//do CRAM-MD5 authentication
iil_PutLine($conn->fp, "a000 AUTHENTICATE CRAM-MD5");
$line = trim(iil_ReadLine($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));
// stop if server sent BYE response
if($result == -3) {
$iil_error = $conn->error;
$iil_errornum = $conn->errorNum;
return false;
}
$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 .= $auth;
if (!is_int($result)) {
iil_C_Namespace($conn);
return $conn;
} else {
$iil_error = $conn->error;
$iil_errornum = $conn->errorNum;
return false;
}
}
function iil_Close(&$conn) {
if (iil_PutLine($conn->fp, "I LOGOUT")) {
fgets($conn->fp, 1024);
fclose($conn->fp);
$conn->fp = false;
}
}
function iil_ExplodeQuotedString($delimiter, $string) {
$result = array();
$strlen = strlen($string);
for ($q=$p=$i=0; $i < $strlen; $i++) {
if ($string[$i] == "\"" && $string[$i-1] != "\\") {
$q = $q ? false : true;
}
else if (!$q && preg_match("/$delimiter/", $string[$i])) {
$result[] = substr($string, $p, $i - $p);
$p = $i + 1;
}
}
$result[] = substr($string, $p);
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) {
iil_PutLine($fp, "a002 EXAMINE \"".iil_Escape($mailbox)."\"");
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', true));
iil_PutLine($fp, "a003 LOGOUT");
fclose($fp);
} else {
$result = -2;
}
return $result;
}
function iil_C_Select(&$conn, $mailbox) {
if (empty($mailbox)) {
return false;
}
if (strcmp($conn->selected, $mailbox) == 0) {
return true;
}
if (iil_PutLine($conn->fp, "sel1 SELECT \"".iil_Escape($mailbox).'"')) {
do {
$line = chop(iil_ReadLine($conn->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];
}
}
else if (preg_match('/\[?PERMANENTFLAGS\s+\(([^\)]+)\)\]/U', $line, $match)) {
$conn->permanentflags = explode(' ', $match[1]);
}
} while (!iil_StartsWith($line, 'sel1', true));
$a = explode(' ', $line);
if (strcasecmp($a[1], 'OK') == 0) {
$conn->selected = $mailbox;
return true;
}
}
return false;
}
function iil_C_CheckForRecent(&$conn, $mailbox) {
if (empty($mailbox)) {
$mailbox = 'INBOX';
}
iil_C_Select($conn, $mailbox);
if ($conn->selected == $mailbox) {
return $conn->recent;
}
return false;
}
function iil_C_CountMessages(&$conn, $mailbox, $refresh = false) {
if ($refresh) {
$conn->selected = '';
}
iil_C_Select($conn, $mailbox);
if ($conn->selected == $mailbox) {
return $conn->exists;
}
return false;
}
function iil_SplitHeaderLine($string) {
$pos=strpos($string, ':');
if ($pos>0) {
$res[0] = substr($string, 0, $pos);
$res[1] = trim(substr($string, $pos+1));
return $res;
}
return $string;
}
function iil_StrToTime($str) {
$IMAP_MONTHS = $GLOBALS['IMAP_MONTHS'];
$IMAP_SERVER_TZ = $GLOBALS['IMAP_SERVER_TZ'];
if ($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_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') {
$field = strtoupper($field);
if ($field == 'INTERNALDATE') {
$field = 'ARRIVAL';
}
$fields = array('ARRIVAL' => 1,'CC' => 1,'DATE' => 1,
'FROM' => 1, 'SIZE' => 1, 'SUBJECT' => 1, 'TO' => 1);
if (!$fields[$field]) {
return false;
}
/* Do "SELECT" command */
if (!iil_C_Select($conn, $mailbox)) {
return false;
}
$is_uid = $is_uid ? 'UID ' : '';
if (!empty($add)) {
$add = " $add";
}
$command = 's ' . $is_uid . 'SORT (' . $field . ') ';
$command .= $encoding . ' ALL' . $add;
$line = $data = '';
if (!iil_PutLineC($conn->fp, $command)) {
return false;
}
do {
$line = chop(iil_ReadLine($conn->fp, 1024));
if (iil_StartsWith($line, '* SORT')) {
$data .= ($data ? ' ' : '') . substr($line, 7);
} else if (preg_match('/^[0-9 ]+$/', $line)) {
$data .= $line;
}
} while (!iil_StartsWith($line, 's ', true));
$result_code = iil_ParseResult($line);
if ($result_code != 0) {
$conn->error = 'iil_C_Sort: ' . $line . "\n";
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);
list($from_idx, $to_idx) = explode(':', $message_set);
if (empty($message_set) || (isset($to_idx)
&& (int)$from_idx > (int)$to_idx)) {
return false;
}
//$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)])";
if (!iil_PutLine($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, $key, true));
}else if ($mode == 6) {
$key = 'fhi' . ($c++);
$request = $key . " FETCH $message_set (INTERNALDATE)";
if (!iil_PutLine($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], $key, true));
} else {
if ($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)";
if (!iil_PutLine($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, $key, true));
}
//check number of elements...
list($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 $result[0];
}
return false;
}
function iil_C_FetchUIDs(&$conn,$mailbox) {
global $clock;
$num = iil_C_CountMessages($conn, $mailbox);
if ($num == 0) {
return array();
}
$message_set = '1' . ($num>1?':' . $num:'');
return iil_C_FetchHeaderIndex($conn, $mailbox, $message_set, 'UID');
}
function iil_SortThreadHeaders($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 $index_a;
list($from_idx, $to_idx) = explode(':', $message_set);
if (empty($message_set) || (isset($to_idx)
&& (int)$from_idx > (int)$to_idx)) {
return false;
}
$result = array();
$uids = iil_C_FetchUIDs($conn, $mailbox);
$debug = false;
$message_set = iil_CompressMessageSet($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 ";
$request .= "(BODY.PEEK[HEADER.FIELDS (SUBJECT MESSAGE-ID IN-REPLY-TO)])";
$mid_to_id = array();
if (!iil_PutLine($fp, $request)) {
return false;
}
do {
$line = chop(iil_ReadLine($fp, 1024));
if ($debug) {
echo $line . "\n";
}
if (preg_match('/\{[0-9]+\}$/', $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 (preg_match('/^\s+/', $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, $uids);
}
//echo 'iil_FetchThreadHeaders:'."\n";
//print_r($result);
return $result;
}
function iil_C_BuildThreads2(&$conn, $mailbox, $message_set, &$clock) {
global $index_a;
list($from_idx, $to_idx) = explode(':', $message_set);
if (empty($message_set) || (isset($to_idx)
&& (int)$from_idx > (int)$to_idx)) {
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-z]{2,3}(\[[0-9]*\])?:(\s*)/i';
/* 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 = '';
$has_re = false;
if (preg_match($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) {
$sbj = preg_replace($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);
}
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 $out;
}
function iil_IndexThreads(&$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, $uidfetch=false, $bodystr=false, $add='')
{
global $IMAP_USE_INTERNAL_DATE;
$result = array();
$fp = $conn->fp;
list($from_idx, $to_idx) = explode(':', $message_set);
if (empty($message_set) || (isset($to_idx)
&& (int)$from_idx > (int)$to_idx)) {
return false;
}
/* Do "SELECT" command */
if (!iil_C_Select($conn, $mailbox)) {
$conn->error = "Couldn't select $mailbox";
return false;
}
if ($add)
$add = ' '.strtoupper(trim($add));
/* FETCH uid, size, flags and headers */
$key = 'FH12';
$request = $key . ($uidfetch ? ' UID' : '') . " FETCH $message_set ";
$request .= "(UID RFC822.SIZE FLAGS INTERNALDATE ";
if ($bodystr)
$request .= "BODYSTRUCTURE ";
$request .= "BODY.PEEK[HEADER.FIELDS ";
$request .= "(DATE FROM TO SUBJECT REPLY-TO IN-REPLY-TO CC BCC ";
$request .= "CONTENT-TRANSFER-ENCODING CONTENT-TYPE MESSAGE-ID ";
$request .= "REFERENCES DISPOSITION-NOTIFICATION-TO X-PRIORITY".$add.")])";
if (!iil_PutLine($fp, $request)) {
return false;
}
do {
$line = iil_ReadLine($fp, 1024);
$line = iil_MultLine($fp, $line);
$a = explode(' ', $line);
if (($line[0] == '*') && ($a[2] == 'FETCH')) {
$id = $a[1];
$result[$id] = new iilBasicHeader;
$result[$id]->id = $id;
$result[$id]->subject = '';
$result[$id]->messageID = 'mid:' . $id;
$lines = array();
$ln = 0;
/*
Sample reply line:
* 321 FETCH (UID 2417 RFC822.SIZE 2730 FLAGS (\Seen)
INTERNALDATE "16-Nov-2008 21:08:46 +0100" BODYSTRUCTURE (...)
BODY[HEADER.FIELDS ...
*/
if (preg_match('/^\* [0-9]+ FETCH \((.*) BODY/s', $line, $matches)) {
$str = $matches[1];
// swap parents with quotes, then explode
$str = preg_replace('/[()]/', '"', $str);
$a = iil_ExplodeQuotedString(' ', $str);
// did we get the right number of replies?
$parts_count = count($a);
if ($parts_count>=6) {
for ($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];
}
$time_str = str_replace('"', '', $time_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, 0, -5); // remove timezone
$time_zone = (float)substr($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?
}
//calculate timestamp
$timestamp = strtotime($time_str); //return's server's time
$timestamp -= $time_zone * 3600; //compensate for tz, get GMT
$result[$id]->internaldate = $time_str;
$result[$id]->timestamp = $timestamp;
$result[$id]->date = $time_str;
}
// BODYSTRUCTURE
if($bodystr) {
while (!preg_match('/ BODYSTRUCTURE (.*) BODY\[HEADER.FIELDS/s', $line, $m)) {
$line2 = iil_ReadLine($fp, 1024);
$line .= iil_MultLine($fp, $line2);
}
$result[$id]->body_structure = $m[1];
}
// the rest of the result
preg_match('/ BODY\[HEADER.FIELDS \(.*\)\]\s*(.*)/s', $line, $m);
$reslines = explode("\n", trim($m[1], '"'));
// re-parse (see below)
foreach ($reslines as $line) {
if (ord($line[0])<=32) {
$lines[$ln] .= (empty($lines[$ln])?'':"\n").trim($line);
} else {
$lines[++$ln] = trim($line);
}
}
}
/*
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.
*/
do {
$line = chop(iil_ReadLine($fp, 300), "\r\n");
// The preg_match below works around communigate imap, which outputs " UID <number>)".
// Without this, the while statement continues on and gets the "FH0 OK completed" message.
// If this loop gets the ending message, then the outer loop does not receive it from radline on line 1249.
// This in causes the if statement on line 1278 to never be true, which causes the headers to end up missing
// If the if statement was changed to pick up the fh0 from this loop, then it causes the outer loop to spin
// An alternative might be:
// if (!preg_match("/:/",$line) && preg_match("/\)$/",$line)) break;
// however, unsure how well this would work with all imap clients.
if (preg_match("/^\s*UID [0-9]+\)$/", $line)) {
break;
}
// handle FLAGS reply after headers (AOL, Zimbra?)
if (preg_match('/\s+FLAGS \((.*)\)\)$/', $line, $matches)) {
$flags_str = $matches[1];
break;
}
if (ord($line[0])<=32) {
$lines[$ln] .= (empty($lines[$ln])?'':"\n").trim($line);
} else {
$lines[++$ln] = trim($line);
}
// patch from "Maksim Rubis" <siburny@hotmail.com>
} while (trim($line[0]) != ')' && strncmp($line, $key, strlen($key)));
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
while ( list($lines_key, $str) = each($lines) ) {
list($field, $string) = iil_SplitHeaderLine($str);
$field = strtolower($field);
$string = preg_replace('/\n\s*/', ' ', $string);
switch ($field) {
case 'date';
if (!$IMAP_USE_INTERNAL_DATE) {
$result[$id]->date = $string;
$result[$id]->timestamp = iil_StrToTime($string);
}
break;
case 'from':
$result[$id]->from = $string;
break;
case 'to':
$result[$id]->to = preg_replace('/undisclosed-recipients:[;,]*/', '', $string);
break;
case 'subject':
$result[$id]->subject = $string;
break;
case 'reply-to':
$result[$id]->replyto = $string;
break;
case 'cc':
$result[$id]->cc = $string;
break;
case 'bcc':
$result[$id]->bcc = $string;
break;
case 'content-transfer-encoding':
$result[$id]->encoding = $string;
break;
case 'content-type':
$ctype_parts = explode(";", $string);
$result[$id]->ctype = array_shift($ctype_parts);
foreach ($ctype_parts as $ctype_add) {
if (preg_match('/charset="?([a-z0-9\-\.\_]+)"?/i',
$ctype_add, $regs)) {
$result[$id]->charset = $regs[1];
}
}
break;
case 'in-reply-to':
$result[$id]->in_reply_to = preg_replace('/[\n<>]/', '', $string);
break;
case 'references':
$result[$id]->references = $string;
break;
case 'return-receipt-to':
case 'disposition-notification-to':
case 'x-confirm-reading-to':
$result[$id]->mdn_to = $string;
break;
case 'message-id':
$result[$id]->messageID = $string;
break;
case 'x-priority':
if (preg_match('/^(\d+)/', $string, $matches))
$result[$id]->priority = intval($matches[1]);
break;
default:
if (strlen($field) > 2)
$result[$id]->others[$field] = $string;
break;
} // end switch ()
} // end while ()
} else {
$a = explode(' ', $line);
}
// process flags
if (!empty($flags_str)) {
$flags_str = preg_replace('/[\\\"]/', '', $flags_str);
$flags_a = explode(' ', $flags_str);
if (is_array($flags_a)) {
reset($flags_a);
while (list(,$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;
} else if (strcasecmp($val, '$Forwarded') == 0) {
$result[$id]->forwarded = true;
} else if (strcasecmp($val, 'Draft') == 0) {
$result[$id]->is_draft = true;
} else if (strcasecmp($val, '$MDNSent') == 0) {
$result[$id]->mdn_sent = true;
} else if (strcasecmp($val, 'Flagged') == 0) {
$result[$id]->flagged = true;
}
}
$result[$id]->flags = $flags_a;
}
}
}
} while (strcmp($a[0], $key) != 0);
return $result;
}
function iil_C_FetchHeader(&$conn, $mailbox, $id, $uidfetch=false, $bodystr=false, $add='') {
$a = iil_C_FetchHeaders($conn, $mailbox, $id, $uidfetch, $bodystr, $add);
if (is_array($a)) {
return array_shift($a);
}
return false;
}
function iil_SortHeaders($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, $messages=NULL) {
if (iil_C_Select($conn, $mailbox)) {
$c = 0;
$command = $messages ? "UID EXPUNGE $messages" : "EXPUNGE";
iil_PutLine($conn->fp, "exp1 $command");
do {
$line=chop(iil_ReadLine($conn->fp, 100));
if ($line[0] == '*') {
$c++;
}
} while (!iil_StartsWith($line, 'exp1', true));
if (iil_ParseResult($line) == 0) {
$conn->selected = ''; //state has changed, need to reselect
//$conn->exists-=$c;
return $c;
}
$conn->error = $line;
}
return -1;
}
function iil_C_ModFlag(&$conn, $mailbox, $messages, $flag, $mod) {
if ($mod != '+' && $mod != '-') {
return -1;
}
$fp = $conn->fp;
$flags = $GLOBALS['IMAP_FLAGS'];
$flag = strtoupper($flag);
$flag = $flags[$flag];
if (iil_C_Select($conn, $mailbox)) {
$c = 0;
iil_PutLine($fp, "flg UID STORE $messages " . $mod . "FLAGS (" . $flag . ")");
do {
$line=chop(iil_ReadLine($fp, 100));
if ($line[0] == '*') {
$c++;
}
} while (!iil_StartsWith($line, 'flg', true));
if (iil_ParseResult($line) == 0) {
return $c;
}
$conn->error = $line;
return -1;
}
$conn->error = 'Select failed';
return -1;
}
function iil_C_Flag(&$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)) {
$c=0;
iil_PutLine($fp, "cpy1 UID COPY $messages \"".iil_Escape($to)."\"");
$line=iil_ReadReply($fp);
return iil_ParseResult($line);
} else {
return -1;
}
}
function iil_FormatSearchDate($month, $day, $year) {
$month = (int) $month;
$months = $GLOBALS['IMAP_MONTHS'];
return $day . '-' . $months[$month] . '-' . $year;
}
function iil_C_CountUnseen(&$conn, $folder) {
$index = iil_C_Search($conn, $folder, 'ALL UNSEEN');
if (is_array($index)) {
if (($cnt = count($index)) && $index[0] != '') {
return $cnt;
}
}
return false;
}
function iil_C_UID2ID(&$conn, $folder, $uid) {
if ($uid > 0) {
$id_a = iil_C_Search($conn, $folder, "UID $uid");
if (is_array($id_a) && count($id_a) == 1) {
return $id_a[0];
}
}
return false;
}
function iil_C_ID2UID(&$conn, $folder, $id) {
$fp = $conn->fp;
if ($id == 0) {
return -1;
}
$result = -1;
if (iil_C_Select($conn, $folder)) {
$key = 'FUID';
if (iil_PutLine($fp, "$key FETCH $id (UID)")) {
do {
$line=chop(iil_ReadLine($fp, 1024));
if (preg_match("/^\* $id FETCH \(UID (.*)\)/i", $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);
if (!iil_PutLineC($fp, $query)) {
return false;
}
do {
$line=trim(iil_ReadLine($fp, 10000));
if (preg_match('/^\* SEARCH/i', $line)) {
$str = trim(substr($line, 8));
$messages = explode(' ', $str);
}
} while (!iil_StartsWith($line, 'srch1', true));
$result_code = iil_ParseResult($line);
if ($result_code == 0) {
return $messages;
}
$conn->error = 'iil_C_Search: ' . $line . "\n";
return false;
}
$conn->error = "iil_C_Search: Couldn't select \"$folder\"\n";
return false;
}
function iil_C_Move(&$conn, $messages, $from, $to) {
if (!$from || !$to) {
return -1;
}
$r = iil_C_Copy($conn, $messages, $from, $to);
if ($r==0) {
return iil_C_Delete($conn, $from, $messages);
}
return $r;
}
/**
* Gets the delimiter, for example:
* INBOX.foo -> .
* INBOX/foo -> /
* INBOX\foo -> \
*
* @return mixed A delimiter (string), or false.
* @param object $conn The current connection.
* @see iil_Connect()
*/
function iil_C_GetHierarchyDelimiter(&$conn) {
global $my_prefs;
if ($conn->delimiter) {
return $conn->delimiter;
}
if (!empty($my_prefs['delimiter'])) {
return ($conn->delimiter = $my_prefs['delimiter']);
}
$fp = $conn->fp;
$delimiter = false;
//try (LIST "" ""), should return delimiter (RFC2060 Sec 6.3.8)
if (!iil_PutLine($fp, 'ghd LIST "" ""')) {
return false;
}
do {
$line=iil_ReadLine($fp, 500);
if ($line[0] == '*') {
$line = rtrim($line);
$a=iil_ExplodeQuotedString(' ', iil_UnEscape($line));
if ($a[0] == '*') {
$delimiter = str_replace('"', '', $a[count($a)-2]);
}
}
} while (!iil_StartsWith($line, 'ghd', true));
if (strlen($delimiter)>0) {
return $delimiter;
}
//if that fails, try namespace extension
//try to fetch namespace data
iil_PutLine($conn->fp, "ns1 NAMESPACE");
do {
$line = iil_ReadLine($conn->fp, 1024);
if (iil_StartsWith($line, '* NAMESPACE')) {
$i = 0;
$line = iil_UnEscape($line);
$data = iil_ParseNamespace2(substr($line,11), $i, 0, 0);
}
} while (!iil_StartsWith($line, 'ns1', true));
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 = $conn->rootdir;
}
// send command
if (!iil_PutLine($fp, "lmb LIST \"".$ref."\" \"".iil_Escape($mailbox)."\"")) {
return false;
}
$i = 0;
// get folder list
do {
$line = iil_ReadLine($fp, 500);
$line = iil_MultLine($fp, $line, true);
$a = explode(' ', $line);
if (($line[0] == '*') && ($a[1] == 'LIST')) {
$line = rtrim($line);
// split one line
$a = iil_ExplodeQuotedString(' ', $line);
// last string is folder name
$folder = preg_replace(array('/^"/', '/"$/'), '', iil_UnEscape($a[count($a)-1]));
if (empty($ignore) || (!empty($ignore)
&& !preg_match('/'.preg_quote(ignore, '/').'/i', $folder))) {
$folders[$i] = $folder;
}
// second from last is delimiter
$delim = trim($a[count($a)-2], '"');
// is it a container?
$i++;
}
} while (!iil_StartsWith($line, 'lmb', true));
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;
}
$folders = array();
// send command
if (!iil_PutLine($fp, 'lsb LSUB "' . $ref . '" "' . iil_Escape($mailbox).'"')) {
$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, true);
$a = explode(' ', $line);
if (($line[0] == '*') && ($a[1] == 'LSUB' || $a[1] == 'LIST')) {
$line = rtrim($line);
// split one line
$a = iil_ExplodeQuotedString(' ', $line);
// last string is folder name
$folder = preg_replace(array('/^"/', '/"$/'), '', iil_UnEscape($a[count($a)-1]));
if ((!in_array($folder, $folders)) && (empty($ignore)
|| (!empty($ignore) && !preg_match('/'.preg_quote(ignore, '/').'/i', $folder)))) {
$folders[$i] = $folder;
}
// second from last is delimiter
$delim = trim($a[count($a)-2], '"');
// is it a container?
$i++;
}
} while (!iil_StartsWith($line, 'lsb', true));
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;
}
$conn->error = $line;
return false;
}
function iil_C_Subscribe(&$conn, $folder) {
$fp = $conn->fp;
$query = 'sub1 SUBSCRIBE "' . iil_Escape($folder). '"';
iil_PutLine($fp, $query);
$line = trim(iil_ReadLine($fp, 10000));
return iil_ParseResult($line);
}
function iil_C_UnSubscribe(&$conn, $folder) {
$fp = $conn->fp;
$query = 'usub1 UNSUBSCRIBE "' . iil_Escape($folder) . '"';
iil_PutLine($fp, $query);
$line = trim(iil_ReadLine($fp, 10000));
return iil_ParseResult($line);
}
function iil_C_FetchMIMEHeaders(&$conn, $mailbox, $id, $parts) {
$fp = $conn->fp;
if (!iil_C_Select($conn, $mailbox)) {
return false;
}
$result = false;
$parts = (array) $parts;
$key = 'fmh0';
$peeks = '';
$idx = 0;
// format request
foreach($parts as $part)
$peeks[] = "BODY.PEEK[$part.MIME]";
$request = "$key FETCH $id (" . implode(' ', $peeks) . ')';
// send request
if (!iil_PutLine($fp, $request)) {
return false;
}
do {
$line = iil_ReadLine($fp, 1000);
$line = iil_MultLine($fp, $line);
if (preg_match('/BODY\[([0-9\.]+)\.MIME\]/', $line, $matches)) {
$idx = $matches[1];
$result[$idx] = preg_replace('/^(\* '.$id.' FETCH \()?\s*BODY\['.$idx.'\.MIME\]\s+/', '', $line);
$result[$idx] = trim($result[$idx], '"');
$result[$idx] = rtrim($result[$idx], "\t\r\n\0\x0B");
}
} while (!iil_StartsWith($line, $key, true));
return $result;
}
function iil_C_FetchPartHeader(&$conn, $mailbox, $id, $part) {
$part = empty($part) ? 'HEADER' : $part.'.MIME';
return iil_C_HandlePartBody($conn, $mailbox, $id, $part);
}
function iil_C_HandlePartBody(&$conn, $mailbox, $id, $part='', $encoding=NULL, $print=NULL, $file=NULL) {
$fp = $conn->fp;
$result = false;
switch ($encoding) {
case 'base64':
$mode = 1;
break;
case 'quoted-printable':
$mode = 2;
break;
case 'x-uuencode':
case 'x-uue':
case 'uue':
case 'uuencode':
$mode = 3;
break;
default:
$mode = 0;
}
if (iil_C_Select($conn, $mailbox)) {
$reply_key = '* ' . $id;
// format request
$key = 'ftch0';
$request = $key . " FETCH $id (BODY.PEEK[$part])";
// send request
if (!iil_PutLine($fp, $request)) {
return false;
}
// receive reply line
do {
$line = chop(iil_ReadLine($fp, 1000));
$a = explode(' ', $line);
} while (!($end = iil_StartsWith($line, $key, true)) && $a[2] != 'FETCH');
$len = strlen($line);
// handle empty "* X FETCH ()" response
if ($line[$len-1] == ')' && $line[$len-2] != '(') {
// one line response, get everything between first and last quotes
if (substr($line, -4, 3) == 'NIL') {
// NIL response
$result = '';
} else {
$from = strpos($line, '"') + 1;
$to = strrpos($line, '"');
$len = $to - $from;
$result = substr($line, $from, $len);
}
if ($mode == 1)
$result = base64_decode($result);
else if ($mode == 2)
$result = quoted_printable_decode($result);
else if ($mode == 3)
$result = convert_uudecode($result);
} 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;
$prev = '';
while ($bytes > 0) {
$line = iil_ReadLine($fp, 1024);
$len = strlen($line);
if ($len > $bytes) {
$line = substr($line, 0, $bytes);
}
$bytes -= strlen($line);
if ($mode == 1) {
$line = rtrim($line, "\t\r\n\0\x0B");
// create chunks with proper length for base64 decoding
$line = $prev.$line;
$length = strlen($line);
if ($length % 4) {
$length = floor($length / 4) * 4;
$prev = substr($line, $length);
$line = substr($line, 0, $length);
}
else
$prev = '';
if ($file)
fwrite($file, base64_decode($line));
else if ($print)
echo base64_decode($line);
else
$result .= base64_decode($line);
} else if ($mode == 2) {
$line = rtrim($line, "\t\r\0\x0B");
if ($file)
fwrite($file, quoted_printable_decode($line));
else if ($print)
echo quoted_printable_decode($line);
else
$result .= quoted_printable_decode($line);
} else if ($mode == 3) {
$line = rtrim($line, "\t\r\n\0\x0B");
if ($line == 'end' || preg_match('/^begin\s+[0-7]+\s+.+$/', $line))
continue;
if ($file)
fwrite($file, convert_uudecode($line));
else if ($print)
echo convert_uudecode($line);
else
$result .= convert_uudecode($line);
} else {
$line = rtrim($line, "\t\r\n\0\x0B");
if ($file)
fwrite($file, $line . "\n");
else if ($print)
echo $line . "\n";
else
$result .= $line . "\n";
}
}
}
// read in anything up until last line
if (!$end)
do {
$line = iil_ReadLine($fp, 1024);
} while (!iil_StartsWith($line, $key, true));
if ($result) {
$result = rtrim($result, "\t\r\n\0\x0B");
if ($file) {
fwrite($file, $result);
} else if ($print) {
echo $result;
} else
return $result; // substr($result, 0, strlen($result)-1);
}
return true;
}
return false;
}
function iil_C_FetchPartBody(&$conn, $mailbox, $id, $part, $file=NULL) {
return iil_C_HandlePartBody($conn, $mailbox, $id, $part, NULL, NULL, $file);
}
function iil_C_PrintPartBody(&$conn, $mailbox, $id, $part) {
iil_C_HandlePartBody($conn, $mailbox, $id, $part, NULL, true, NULL);
}
function iil_C_CreateFolder(&$conn, $folder) {
$fp = $conn->fp;
if (iil_PutLine($fp, 'c CREATE "' . iil_Escape($folder) . '"')) {
do {
$line=iil_ReadLine($fp, 300);
} while ($line[0] != 'c');
$conn->error = $line;
return (iil_ParseResult($line) == 0);
}
return false;
}
function iil_C_RenameFolder(&$conn, $from, $to) {
$fp = $conn->fp;
if (iil_PutLine($fp, 'r RENAME "' . iil_Escape($from) . '" "' . iil_Escape($to) . '"')) {
do {
$line = iil_ReadLine($fp, 300);
} while ($line[0] != 'r');
return (iil_ParseResult($line) == 0);
}
return false;
}
function iil_C_DeleteFolder(&$conn, $folder) {
$fp = $conn->fp;
if (iil_PutLine($fp, 'd DELETE "' . iil_Escape($folder). '"')) {
do {
$line=iil_ReadLine($fp, 300);
} while ($line[0] != 'd');
return (iil_ParseResult($line) == 0);
}
$conn->error = "Couldn't send command\n";
return false;
}
function iil_C_Append(&$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;
}
$request = 'A APPEND "' . iil_Escape($folder) .'" (\\Seen) {' . $len . '}';
if (iil_PutLine($fp, $request)) {
$line=iil_ReadLine($fp, 100);
$sent = fwrite($fp, $message."\r\n");
do {
$line=iil_ReadLine($fp, 1000);
} while ($line[0] != 'A');
$result = (iil_ParseResult($line) == 0);
if (!$result) {
$conn->error .= $line . "\n";
}
return $result;
}
$conn->error .= "Couldn't send command \"$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
$request = 'A APPEND "' . iil_Escape($folder) . '" (\\Seen) {' . $len . '}';
$bytes_sent = 0;
if (iil_PutLine($fp, $request)) {
$line = iil_ReadLine($fp, 100);
//send file
while (!feof($in_fp)) {
$buffer = fgets($in_fp, 4096);
$bytes_sent += strlen($buffer);
iil_PutLine($fp, $buffer, false);
}
fclose($in_fp);
iil_PutLine($fp, '');
//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;
}
$conn->error .= "Couldn't send command \"$request\"\n";
return false;
}
function iil_C_FetchStructureString(&$conn, $folder, $id) {
$fp = $conn->fp;
$result = false;
if (iil_C_Select($conn, $folder)) {
$key = 'F1247';
if (iil_PutLine($fp, "$key FETCH $id (BODYSTRUCTURE)")) {
do {
$line = iil_ReadLine($fp, 5000);
$line = iil_MultLine($fp, $line);
list(, $index, $cmd, $rest) = explode(' ', $line);
if ($cmd != 'FETCH' || $index == $id || preg_match("/^$key/", $line))
$result .= $line;
} while (!preg_match("/^$key/", $line));
$result = trim(substr($result, strpos($result, 'BODYSTRUCTURE')+13, -(strlen($result)-strrpos($result, $key)+1)));
}
}
return $result;
}
function iil_C_GetQuota(&$conn) {
/*
* GETQUOTAROOT "INBOX"
* QUOTAROOT INBOX user/rchijiiwa1
* QUOTA user/rchijiiwa1 (STORAGE 654 9765)
* OK Completed
*/
$fp = $conn->fp;
$result = false;
$quota_lines = array();
// get line(s) containing quota info
if (iil_PutLine($fp, 'QUOT1 GETQUOTAROOT "INBOX"')) {
do {
$line=chop(iil_ReadLine($fp, 5000));
if (iil_StartsWith($line, '* QUOTA ')) {
$quota_lines[] = $line;
}
} while (!iil_StartsWith($line, 'QUOT1', true));
}
// return false if not found, parse if found
$min_free = PHP_INT_MAX;
foreach ($quota_lines as $key => $quota_line) {
$quota_line = preg_replace('/[()]/', '', $quota_line);
$parts = explode(' ', $quota_line);
$storage_part = array_search('STORAGE', $parts);
if (!$storage_part) continue;
$used = intval($parts[$storage_part+1]);
$total = intval($parts[$storage_part+2]);
$free = $total - $used;
// return lowest available space from all quotas
if ($free < $min_free) {
$min_free = $free;
$result['used'] = $used;
$result['total'] = $total;
$result['percent'] = min(100, round(($used/max(1,$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, $folder, '1:*');
}
return (iil_C_Expunge($conn, $folder) >= 0);
}
?>

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