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rcube_imap_generic.php
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rcube_imap_generic.php
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<?php
/*
+-----------------------------------------------------------------------+
| program/include/rcube_imap_generic.php |
| |
| This file is part of the RoundCube Webmail client |
| Copyright (C) 2005-2010, RoundCube Dev. - Switzerland |
| Licensed under the GNU GPL |
| |
| PURPOSE: |
| Provide alternative IMAP library that doesn't rely on the standard |
| C-Client based version. This allows to function regardless |
| of whether or not the PHP build it's running on has IMAP |
| functionality built-in. |
| |
| Based on Iloha IMAP Library. See http://ilohamail.org/ for details |
| |
+-----------------------------------------------------------------------+
| Author: Aleksander Machniak <alec@alec.pl> |
| Author: Ryo Chijiiwa <Ryo@IlohaMail.org> |
+-----------------------------------------------------------------------+
$Id$
*/
/**
* Struct representing an e-mail message header
*
* @package Mail
* @author Aleksander Machniak <alec@alec.pl>
*/
class rcube_mail_header
{
public $id;
public $uid;
public $subject;
public $from;
public $to;
public $cc;
public $replyto;
public $in_reply_to;
public $date;
public $messageID;
public $size;
public $encoding;
public $charset;
public $ctype;
public $flags;
public $timestamp;
public $f;
public $body_structure;
public $internaldate;
public $references;
public $priority;
public $mdn_to;
public $mdn_sent = false;
public $is_draft = false;
public $seen = false;
public $deleted = false;
public $recent = false;
public $answered = false;
public $forwarded = false;
public $junk = false;
public $flagged = false;
public $has_children = false;
public $depth = 0;
public $unread_children = 0;
public $others = array();
}
// For backward compatibility with cached messages (#1486602)
class iilBasicHeader extends rcube_mail_header
{
}
/**
* PHP based wrapper class to connect to an IMAP server
*
* @package Mail
* @author Aleksander Machniak <alec@alec.pl>
*/
class rcube_imap_generic
{
public $error;
public $errornum;
public $message;
public $rootdir;
public $delimiter;
public $permanentflags = array();
public $flags = array(
'SEEN' => '\\Seen',
'DELETED' => '\\Deleted',
'RECENT' => '\\Recent',
'ANSWERED' => '\\Answered',
'DRAFT' => '\\Draft',
'FLAGGED' => '\\Flagged',
'FORWARDED' => '$Forwarded',
'MDNSENT' => '$MDNSent',
'*' => '\\*',
);
private $exists;
private $recent;
private $selected;
private $fp;
private $host;
private $logged = false;
private $capability = array();
private $capability_readed = false;
private $prefs;
/**
* Object constructor
*/
function __construct()
{
}
private function putLine($string, $endln=true)
{
if (!$this->fp)
return false;
if (!empty($this->prefs['debug_mode'])) {
write_log('imap', 'C: '. rtrim($string));
}
return fputs($this->fp, $string . ($endln ? "\r\n" : ''));
}
// $this->putLine replacement with Command Continuation Requests (RFC3501 7.5) support
private function putLineC($string, $endln=true)
{
if (!$this->fp)
return NULL;
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])) {
$bytes = $this->putLine($parts[$i].$parts[$i+1], false);
if ($bytes === false)
return false;
$res += $bytes;
$line = $this->readLine(1000);
// handle error in command
if ($line[0] != '+')
return false;
$i++;
}
else {
$bytes = $this->putLine($parts[$i], false);
if ($bytes === false)
return false;
$res += $bytes;
}
}
}
return $res;
}
private function readLine($size=1024)
{
$line = '';
if (!$this->fp) {
return NULL;
}
if (!$size) {
$size = 1024;
}
do {
if (feof($this->fp)) {
return $line ? $line : NULL;
}
$buffer = fgets($this->fp, $size);
if ($buffer === false) {
@fclose($this->fp);
$this->fp = null;
break;
}
if (!empty($this->prefs['debug_mode'])) {
write_log('imap', 'S: '. chop($buffer));
}
$line .= $buffer;
} while ($buffer[strlen($buffer)-1] != "\n");
return $line;
}
private function multLine($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 = $this->readBytes($bytes);
if ($line === NULL)
break;
$out .= $line;
}
$line = $a[1][0] . '"' . ($escape ? $this->Escape($out) : $out) . '"';
}
return $line;
}
private function readBytes($bytes)
{
$data = '';
$len = 0;
while ($len < $bytes && !feof($this->fp))
{
$d = fread($this->fp, $bytes-$len);
if (!empty($this->prefs['debug_mode'])) {
write_log('imap', 'S: '. $d);
}
$data .= $d;
$data_len = strlen($data);
if ($len == $data_len) {
break; // nothing was read -> exit to avoid apache lockups
}
$len = $data_len;
}
return $data;
}
// don't use it in loops, until you exactly know what you're doing
private function readReply(&$untagged=null)
{
do {
$line = trim($this->readLine(1024));
// store untagged response lines
if ($line[0] == '*')
$untagged[] = $line;
} while ($line[0] == '*');
if ($untagged)
$untagged = join("\n", $untagged);
return $line;
}
private function parseResult($string)
{
$a = explode(' ', trim($string));
if (count($a) >= 2) {
$res = strtoupper($a[1]);
if ($res == 'OK') {
return 0;
} else if ($res == 'NO') {
return -1;
} else if ($res == 'BAD') {
return -2;
} else if ($res == 'BYE') {
@fclose($this->fp);
$this->fp = null;
return -3;
}
}
return -4;
}
// check if $string starts with $match (or * BYE/BAD)
private function startsWith($string, $match, $error=false, $nonempty=false)
{
$len = strlen($match);
if ($len == 0) {
return false;
}
if (!$this->fp) {
return true;
}
if (strncmp($string, $match, $len) == 0) {
return true;
}
if ($error && preg_match('/^\* (BYE|BAD) /i', $string, $m)) {
if (strtoupper($m[1]) == 'BYE') {
@fclose($this->fp);
$this->fp = null;
}
return true;
}
if ($nonempty && !strlen($string)) {
return true;
}
return false;
}
private function startsWithI($string, $match, $error=false, $nonempty=false)
{
$len = strlen($match);
if ($len == 0) {
return false;
}
if (!$this->fp) {
return true;
}
if (strncasecmp($string, $match, $len) == 0) {
return true;
}
if ($error && preg_match('/^\* (BYE|BAD) /i', $string, $m)) {
if (strtoupper($m[1]) == 'BYE') {
@fclose($this->fp);
$this->fp = null;
}
return true;
}
if ($nonempty && !strlen($string)) {
return true;
}
return false;
}
function getCapability($name)
{
if (in_array($name, $this->capability)) {
return true;
}
else if ($this->capability_readed) {
return false;
}
// get capabilities (only once) because initial
// optional CAPABILITY response may differ
$this->capability = array();
if (!$this->putLine("cp01 CAPABILITY")) {
return false;
}
do {
$line = trim($this->readLine(1024));
$a = explode(' ', $line);
if ($line[0] == '*') {
while (list($k, $w) = each($a)) {
if ($w != '*' && $w != 'CAPABILITY')
$this->capability[] = strtoupper($w);
}
}
} while ($a[0] != 'cp01');
$this->capability_readed = true;
if (in_array($name, $this->capability)) {
return true;
}
return false;
}
function clearCapability()
{
$this->capability = array();
$this->capability_readed = false;
}
function authenticate($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
$hash = md5($this->_xor($pass,$opad) . pack("H*", md5($this->_xor($pass, $ipad) . base64_decode($encChallenge))));
// generate reply
$reply = base64_encode($user . ' ' . $hash);
// send result, get reply
$this->putLine($reply);
$line = $this->readLine(1024);
// process result
$result = $this->parseResult($line);
if ($result == 0) {
$this->errornum = 0;
return $this->fp;
}
$this->error = "Authentication for $user failed (AUTH): $line";
$this->errornum = $result;
return $result;
}
function login($user, $password)
{
$this->putLine('a001 LOGIN "'.$this->escape($user).'" "'.$this->escape($password).'"');
$line = $this->readReply($untagged);
// re-set capabilities list if untagged CAPABILITY response provided
if (preg_match('/\* CAPABILITY (.+)/i', $untagged, $matches)) {
$this->capability = explode(' ', strtoupper($matches[1]));
}
// process result
$result = $this->parseResult($line);
if ($result == 0) {
$this->errornum = 0;
return $this->fp;
}
@fclose($this->fp);
$this->fp = false;
$this->error = "Authentication for $user failed (LOGIN): $line";
$this->errornum = $result;
return $result;
}
function getNamespace()
{
if (isset($this->prefs['rootdir']) && is_string($this->prefs['rootdir'])) {
$this->rootdir = $this->prefs['rootdir'];
return true;
}
if (!$this->getCapability('NAMESPACE')) {
return false;
}
if (!$this->putLine("ns1 NAMESPACE")) {
return false;
}
do {
$line = $this->readLine(1024);
if ($this->startsWith($line, '* NAMESPACE')) {
$i = 0;
$line = $this->unEscape($line);
$data = $this->parseNamespace(substr($line,11), $i, 0, 0);
}
} while (!$this->startsWith($line, 'ns1', true, true));
if (!is_array($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;
}
$this->rootdir = $first_userspace[0];
$this->delimiter = $first_userspace[1];
$this->prefs['rootdir'] = substr($this->rootdir, 0, -1);
$this->prefs['delimiter'] = $this->delimiter;
return true;
}
/**
* Gets the delimiter, for example:
* INBOX.foo -> .
* INBOX/foo -> /
* INBOX\foo -> \
*
* @return mixed A delimiter (string), or false.
* @see connect()
*/
function getHierarchyDelimiter()
{
if ($this->delimiter) {
return $this->delimiter;
}
if (!empty($this->prefs['delimiter'])) {
return ($this->delimiter = $this->prefs['delimiter']);
}
$delimiter = false;
// try (LIST "" ""), should return delimiter (RFC2060 Sec 6.3.8)
if (!$this->putLine('ghd LIST "" ""')) {
return false;
}
do {
$line = $this->readLine(500);
if ($line[0] == '*') {
$line = rtrim($line);
$a = rcube_explode_quoted_string(' ', $this->unEscape($line));
if ($a[0] == '*') {
$delimiter = str_replace('"', '', $a[count($a)-2]);
}
}
} while (!$this->startsWith($line, 'ghd', true, true));
if (strlen($delimiter)>0) {
return $delimiter;
}
// if that fails, try namespace extension
// try to fetch namespace data
if (!$this->putLine("ns1 NAMESPACE")) {
return false;
}
do {
$line = $this->readLine(1024);
if ($this->startsWith($line, '* NAMESPACE')) {
$i = 0;
$line = $this->unEscape($line);
$data = $this->parseNamespace(substr($line,11), $i, 0, 0);
}
} while (!$this->startsWith($line, 'ns1', true, true));
if (!is_array($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 $delimiter;
}
function connect($host, $user, $password, $options=null)
{
// set options
if (is_array($options)) {
$this->prefs = $options;
}
// set auth method
if (!empty($this->prefs['auth_method'])) {
$auth_method = strtoupper($this->prefs['auth_method']);
} else {
$auth_method = 'CHECK';
}
$message = "INITIAL: $auth_method\n";
$result = false;
// initialize connection
$this->error = '';
$this->errornum = 0;
$this->selected = '';
$this->user = $user;
$this->host = $host;
$this->logged = false;
// check input
if (empty($host)) {
$this->error = "Empty host";
$this->errornum = -2;
return false;
}
if (empty($user)) {
$this->error = "Empty user";
$this->errornum = -1;
return false;
}
if (empty($password)) {
$this->error = "Empty password";
$this->errornum = -1;
return false;
}
if (!$this->prefs['port']) {
$this->prefs['port'] = 143;
}
// check for SSL
if ($this->prefs['ssl_mode'] && $this->prefs['ssl_mode'] != 'tls') {
$host = $this->prefs['ssl_mode'] . '://' . $host;
}
$this->fp = @fsockopen($host, $this->prefs['port'], $errno, $errstr, 10);
if (!$this->fp) {
$this->error = sprintf("Could not connect to %s:%d: %s", $host, $this->prefs['port'], $errstr);
$this->errornum = -2;
return false;
}
stream_set_timeout($this->fp, 10);
$line = trim(fgets($this->fp, 8192));
if ($this->prefs['debug_mode'] && $line) {
write_log('imap', 'S: '. $line);
}
// Connected to wrong port or connection error?
if (!preg_match('/^\* (OK|PREAUTH)/i', $line)) {
if ($line)
$this->error = sprintf("Wrong startup greeting (%s:%d): %s", $host, $this->prefs['port'], $line);
else
$this->error = sprintf("Empty startup greeting (%s:%d)", $host, $this->prefs['port']);
$this->errornum = -2;
return false;
}
// RFC3501 [7.1] optional CAPABILITY response
if (preg_match('/\[CAPABILITY ([^]]+)\]/i', $line, $matches)) {
$this->capability = explode(' ', strtoupper($matches[1]));
}
$this->message .= $line;
// TLS connection
if ($this->prefs['ssl_mode'] == 'tls' && $this->getCapability('STARTTLS')) {
if (version_compare(PHP_VERSION, '5.1.0', '>=')) {
$this->putLine("tls0 STARTTLS");
$line = $this->readLine(4096);
if (!$this->startsWith($line, "tls0 OK")) {
$this->error = "Server responded to STARTTLS with: $line";
$this->errornum = -2;
return false;
}
if (!stream_socket_enable_crypto($this->fp, true, STREAM_CRYPTO_METHOD_TLS_CLIENT)) {
$this->error = "Unable to negotiate TLS";
$this->errornum = -2;
return false;
}
// Now we're authenticated, capabilities need to be reread
$this->clearCapability();
}
}
$orig_method = $auth_method;
if ($auth_method == 'CHECK') {
// check for supported auth methods
if ($this->getCapability('AUTH=CRAM-MD5') || $this->getCapability('AUTH=CRAM_MD5')) {
$auth_method = 'AUTH';
}
else {
// default to plain text auth
$auth_method = 'PLAIN';
}
}
if ($auth_method == 'AUTH') {
// do CRAM-MD5 authentication
$this->putLine("a000 AUTHENTICATE CRAM-MD5");
$line = trim($this->readLine(1024));
if ($line[0] == '+') {
// got a challenge string, try CRAM-MD5
$result = $this->authenticate($user, $password, substr($line,2));
// stop if server sent BYE response
if ($result == -3) {
return false;
}
}
if (!is_resource($result) && $orig_method == 'CHECK') {
$auth_method = 'PLAIN';
}
}
if ($auth_method == 'PLAIN') {
// do plain text auth
$result = $this->login($user, $password);
}
if (is_resource($result)) {
if ($this->prefs['force_caps']) {
$this->clearCapability();
}
$this->getNamespace();
$this->logged = true;
return true;
} else {
return false;
}
}
function connected()
{
return ($this->fp && $this->logged) ? true : false;
}
function close()
{
if ($this->putLine("I LOGOUT")) {
if (!feof($this->fp))
fgets($this->fp, 1024);
}
@fclose($this->fp);
$this->fp = false;
}
function select($mailbox)
{
if (empty($mailbox)) {
return false;
}
if ($this->selected == $mailbox) {
return true;
}
if ($this->putLine("sel1 SELECT \"".$this->escape($mailbox).'"')) {
do {
$line = chop($this->readLine(300));
$a = explode(' ', $line);
if (count($a) == 3) {
$token = strtoupper($a[2]);
if ($token == 'EXISTS') {
$this->exists = (int) $a[1];
}
else if ($token == 'RECENT') {
$this->recent = (int) $a[1];
}
}
else if (preg_match('/\[?PERMANENTFLAGS\s+\(([^\)]+)\)\]/U', $line, $match)) {
$this->permanentflags = explode(' ', $match[1]);
}
} while (!$this->startsWith($line, 'sel1', true, true));
if (strcasecmp($a[1], 'OK') == 0) {
$this->selected = $mailbox;
return true;
}
else {
$this->error = "Couldn't select $mailbox";
}
}
return false;
}
function checkForRecent($mailbox)
{
if (empty($mailbox)) {
$mailbox = 'INBOX';
}
$this->select($mailbox);
if ($this->selected == $mailbox) {
return $this->recent;
}
return false;
}
function countMessages($mailbox, $refresh = false)
{
if ($refresh) {
$this->selected = '';
}
$this->select($mailbox);
if ($this->selected == $mailbox) {
return $this->exists;
}
return false;
}
function sort($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[$field]) {
return false;
}
/* Do "SELECT" command */
if (!$this->select($mailbox)) {
return false;
}
$is_uid = $is_uid ? 'UID ' : '';
// message IDs
if (is_array($add))
$add = $this->compressMessageSet(join(',', $add));
$command = "s ".$is_uid."SORT ($field) $encoding ALL";
$line = $data = '';
if (!empty($add))
$command .= ' '.$add;
if (!$this->putLineC($command)) {
return false;
}
do {
$line = chop($this->readLine());
if ($this->startsWith($line, '* SORT')) {
$data .= substr($line, 7);
} else if (preg_match('/^[0-9 ]+$/', $line)) {
$data .= $line;
}
} while (!$this->startsWith($line, 's ', true, true));
$result_code = $this->parseResult($line);
if ($result_code != 0) {
$this->error = "Sort: $line";
return false;
}
return preg_split('/\s+/', $data, -1, PREG_SPLIT_NO_EMPTY);
}
function fetchHeaderIndex($mailbox, $message_set, $index_field='', $skip_deleted=true, $uidfetch=false)
{
if (is_array($message_set)) {
if (!($message_set = $this->compressMessageSet(join(',', $message_set))))
return false;
} else {
list($from_idx, $to_idx) = explode(':', $message_set);
if (empty($message_set) ||
(isset($to_idx) && $to_idx != '*' && (int)$from_idx > (int)$to_idx)) {
return false;
}
}
$index_field = empty($index_field) ? 'DATE' : strtoupper($index_field);
$fields_a['DATE'] = 1;
$fields_a['INTERNALDATE'] = 4;
$fields_a['ARRIVAL'] = 4;
$fields_a['FROM'] = 1;
$fields_a['REPLY-TO'] = 1;
$fields_a['SENDER'] = 1;
$fields_a['TO'] = 1;
$fields_a['CC'] = 1;
$fields_a['SUBJECT'] = 1;
$fields_a['UID'] = 2;
$fields_a['SIZE'] = 2;
$fields_a['SEEN'] = 3;
$fields_a['RECENT'] = 3;
$fields_a['DELETED'] = 3;
if (!($mode = $fields_a[$index_field])) {
return false;
}
/* Do "SELECT" command */
if (!$this->select($mailbox)) {
return false;
}
// build FETCH command string
$key = 'fhi0';
$cmd = $uidfetch ? 'UID FETCH' : 'FETCH';
$deleted = $skip_deleted ? ' FLAGS' : '';
if ($mode == 1 && $index_field == 'DATE')
$request = " $cmd $message_set (INTERNALDATE BODY.PEEK[HEADER.FIELDS (DATE)]$deleted)";
else if ($mode == 1)
$request = " $cmd $message_set (BODY.PEEK[HEADER.FIELDS ($index_field)]$deleted)";
else if ($mode == 2) {
if ($index_field == 'SIZE')
$request = " $cmd $message_set (RFC822.SIZE$deleted)";
else
$request = " $cmd $message_set ($index_field$deleted)";
} else if ($mode == 3)
$request = " $cmd $message_set (FLAGS)";
else // 4
$request = " $cmd $message_set (INTERNALDATE$deleted)";
$request = $key . $request;
if (!$this->putLine($request)) {
return false;
}
$result = array();
do {
$line = chop($this->readLine(200));
$line = $this->multLine($line);
if (preg_match('/^\* ([0-9]+) FETCH/', $line, $m)) {
$id = $m[1];
$flags = NULL;
if ($skip_deleted && preg_match('/FLAGS \(([^)]+)\)/', $line, $matches)) {
$flags = explode(' ', strtoupper($matches[1]));
if (in_array('\\DELETED', $flags)) {
$deleted[$id] = $id;
continue;
}
}
if ($mode == 1 && $index_field == 'DATE') {
if (preg_match('/BODY\[HEADER\.FIELDS \("*DATE"*\)\] (.*)/', $line, $matches)) {
$value = preg_replace(array('/^"*[a-z]+:/i'), '', $matches[1]);
$value = trim($value);
$result[$id] = $this->strToTime($value);
}
// non-existent/empty Date: header, use INTERNALDATE
if (empty($result[$id])) {
if (preg_match('/INTERNALDATE "([^"]+)"/', $line, $matches))
$result[$id] = $this->strToTime($matches[1]);
else
$result[$id] = 0;
}
} else if ($mode == 1) {
if (preg_match('/BODY\[HEADER\.FIELDS \("?(FROM|REPLY-TO|SENDER|TO|SUBJECT)"?\)\] (.*)/', $line, $matches)) {
$value = preg_replace(array('/^"*[a-z]+:/i', '/\s+$/sm'), array('', ''), $matches[2]);
$result[$id] = trim($value);
} else {
$result[$id] = '';
}
} else if ($mode == 2) {
if (preg_match('/\((UID|RFC822\.SIZE) ([0-9]+)/', $line, $matches)) {
$result[$id] = trim($matches[2]);
} else {
$result[$id] = 0;
}
} else if ($mode == 3) {
if (!$flags && preg_match('/FLAGS \(([^)]+)\)/', $line, $matches)) {
$flags = explode(' ', $matches[1]);
}
$result[$id] = in_array('\\'.$index_field, $flags) ? 1 : 0;
} else if ($mode == 4) {
if (preg_match('/INTERNALDATE "([^"]+)"/', $line, $matches)) {
$result[$id] = $this->strToTime($matches[1]);
} else {
$result[$id] = 0;
}
}
}
} while (!$this->startsWith($line, $key, true, true));
return $result;
}
private function compressMessageSet($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(',', $result);
}
function UID2ID($folder, $uid)
{
if ($uid > 0) {
$id_a = $this->search($folder, "UID $uid");
if (is_array($id_a) && count($id_a) == 1) {
return $id_a[0];
}
}
return false;
}
function ID2UID($folder, $id)
{
if (empty($id)) {
return -1;
}
if (!$this->select($folder)) {
return -1;
}
$result = -1;
if ($this->putLine("fuid FETCH $id (UID)")) {
do {
$line = chop($this->readLine(1024));
if (preg_match("/^\* $id FETCH \(UID (.*)\)/i", $line, $r)) {
$result = $r[1];
}
} while (!$this->startsWith($line, 'fuid', true, true));
}
return $result;
}
function fetchUIDs($mailbox, $message_set=null)
{
if (is_array($message_set))
$message_set = join(',', $message_set);
else if (empty($message_set))
$message_set = '1:*';
return $this->fetchHeaderIndex($mailbox, $message_set, 'UID', false);
}
function fetchHeaders($mailbox, $message_set, $uidfetch=false, $bodystr=false, $add='')
{
$result = array();
if (!$this->select($mailbox)) {
return false;
}
if (is_array($message_set))
$message_set = join(',', $message_set);
$message_set = $this->compressMessageSet($message_set);
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 ";
$request .= "X-DRAFT-INFO".$add.")])";
if (!$this->putLine($request)) {
return false;
}
do {
$line = $this->readLine(1024);
$line = $this->multLine($line);
if (!$line)
break;
$a = explode(' ', $line);
if (($line[0] == '*') && ($a[2] == 'FETCH')) {
$id = $a[1];
$result[$id] = new rcube_mail_header;
$result[$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 = rcube_explode_quoted_string(' ', $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 ($a[$i] == 'UID')
$result[$id]->uid = $a[$i+1];
else if ($a[$i] == 'RFC822.SIZE')
$result[$id]->size = $a[$i+1];
else if ($a[$i] == 'INTERNALDATE')
$time_str = $a[$i+1];
else if ($a[$i] == 'FLAGS')
$flags_str = $a[$i+1];
}
$time_str = str_replace('"', '', $time_str);
// if time is gmt...
$time_str = str_replace('GMT','+0000',$time_str);
$result[$id]->internaldate = $time_str;
$result[$id]->timestamp = $this->StrToTime($time_str);
$result[$id]->date = $time_str;
}
// BODYSTRUCTURE
if($bodystr) {
while (!preg_match('/ BODYSTRUCTURE (.*) BODY\[HEADER.FIELDS/s', $line, $m)) {
$line2 = $this->readLine(1024);
$line .= $this->multLine($line2, true);
}
$result[$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 $resln) {
if (ord($resln[0])<=32) {
$lines[$ln] .= (empty($lines[$ln])?'':"\n").trim($resln);
} else {
$lines[++$ln] = trim($resln);
}
}
}
// 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 {
$line = chop($this->readLine(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($line);
}
// patch from "Maksim Rubis" <siburny@hotmail.com>
} while ($line[0] != ')' && !$this->startsWith($line, $key, true));
if (strncmp($line, $key, strlen($key))) {
// process header, fill rcube_mail_header 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) = $this->splitHeaderLine($str);
$field = strtolower($field);
$string = preg_replace('/\n\s*/', ' ', $string);
switch ($field) {
case 'date';
$result[$id]->date = $string;
$result[$id]->timestamp = $this->strToTime($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 = preg_split('/[; ]/', $string);
$result[$id]->ctype = array_shift($ctype_parts);
if (preg_match('/charset\s*=\s*"?([a-z0-9\-\.\_]+)"?/i', $string, $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($flags_a);
foreach($flags_a as $flag) {
$flag = strtoupper($flag);
if ($flag == 'SEEN') {
$result[$id]->seen = true;
} else if ($flag == 'DELETED') {
$result[$id]->deleted = true;
} else if ($flag == 'RECENT') {
$result[$id]->recent = true;
} else if ($flag == 'ANSWERED') {
$result[$id]->answered = true;
} else if ($flag == '$FORWARDED') {
$result[$id]->forwarded = true;
} else if ($flag == 'DRAFT') {
$result[$id]->is_draft = true;
} else if ($flag == '$MDNSENT') {
$result[$id]->mdn_sent = true;
} else if ($flag == 'FLAGGED') {
$result[$id]->flagged = true;
}
}
$result[$id]->flags = $flags_a;
}
}
}
} while (!$this->startsWith($line, $key, true));
return $result;
}
function fetchHeader($mailbox, $id, $uidfetch=false, $bodystr=false, $add='')
{
$a = $this->fetchHeaders($mailbox, $id, $uidfetch, $bodystr, $add);
if (is_array($a)) {
return array_shift($a);
}
return false;
}
function sortHeaders($a, $field, $flag)
{
if (empty($field)) {
$field = 'uid';
}
else {
$field = strtolower($field);
}
if ($field == 'date' || $field == 'internaldate') {
$field = 'timestamp';
}
if (empty($flag)) {
$flag = 'ASC';
} else {
$flag = strtoupper($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 = $this->strToTime($val->date);
if (!$data) {
$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 $result;
}
function expunge($mailbox, $messages=NULL)
{
if (!$this->select($mailbox)) {
return -1;
}
$c = 0;
$command = $messages ? "UID EXPUNGE $messages" : "EXPUNGE";
if (!$this->putLine("exp1 $command")) {
return -1;
}
do {
$line = $this->readLine(100);
if ($line[0] == '*') {
$c++;
}
} while (!$this->startsWith($line, 'exp1', true, true));
if ($this->parseResult($line) == 0) {
$this->selected = ''; // state has changed, need to reselect
return $c;
}
$this->error = $line;
return -1;
}
function modFlag($mailbox, $messages, $flag, $mod)
{
if ($mod != '+' && $mod != '-') {
return -1;
}
$flag = $this->flags[strtoupper($flag)];
if (!$this->select($mailbox)) {
return -1;
}
$c = 0;
if (!$this->putLine("flg UID STORE $messages {$mod}FLAGS ($flag)")) {
return false;
}
do {
$line = $this->readLine(1000);
if ($line[0] == '*') {
$c++;
}
} while (!$this->startsWith($line, 'flg', true, true));
if ($this->parseResult($line) == 0) {
return $c;
}
$this->error = $line;
return -1;
}
function flag($mailbox, $messages, $flag) {
return $this->modFlag($mailbox, $messages, $flag, '+');
}
function unflag($mailbox, $messages, $flag) {
return $this->modFlag($mailbox, $messages, $flag, '-');
}
function delete($mailbox, $messages) {
return $this->modFlag($mailbox, $messages, 'DELETED', '+');
}
function copy($messages, $from, $to)
{
if (empty($from) || empty($to)) {
return -1;
}
if (!$this->select($from)) {
return -1;
}
$this->putLine("cpy1 UID COPY $messages \"".$this->escape($to)."\"");
$line = $this->readReply();
return $this->parseResult($line);
}
function countUnseen($folder)
{
$index = $this->search($folder, 'ALL UNSEEN');
if (is_array($index))
return count($index);
return false;
}
// Don't be tempted to change $str to pass by reference to speed this up - it will slow it down by about
// 7 times instead :-) See comments on http://uk2.php.net/references and this article:
// http://derickrethans.nl/files/phparch-php-variables-article.pdf
private function parseThread($str, $begin, $end, $root, $parent, $depth, &$depthmap, &$haschildren)
{
$node = array();
if ($str[$begin] != '(') {
$stop = $begin + strspn($str, "1234567890", $begin, $end - $begin);
$msg = substr($str, $begin, $stop - $begin);
if ($msg == 0)
return $node;
if (is_null($root))
$root = $msg;
$depthmap[$msg] = $depth;
$haschildren[$msg] = false;
if (!is_null($parent))
$haschildren[$parent] = true;
if ($stop + 1 < $end)
$node[$msg] = $this->parseThread($str, $stop + 1, $end, $root, $msg, $depth + 1, $depthmap, $haschildren);
else
$node[$msg] = array();
} else {
$off = $begin;
while ($off < $end) {
$start = $off;
$off++;
$n = 1;
while ($n > 0) {
$p = strpos($str, ')', $off);
if ($p === false) {
error_log('Mismatched brackets parsing IMAP THREAD response:');
error_log(substr($str, ($begin < 10) ? 0 : ($begin - 10), $end - $begin + 20));
error_log(str_repeat(' ', $off - (($begin < 10) ? 0 : ($begin - 10))));
return $node;
}
$p1 = strpos($str, '(', $off);
if ($p1 !== false && $p1 < $p) {
$off = $p1 + 1;
$n++;
} else {
$off = $p + 1;
$n--;
}
}
$node += $this->parseThread($str, $start + 1, $off - 1, $root, $parent, $depth, $depthmap, $haschildren);
}
}
return $node;
}
function thread($folder, $algorithm='REFERENCES', $criteria='', $encoding='US-ASCII')
{
if (!$this->select($folder)) {
return false;
}
$encoding = $encoding ? trim($encoding) : 'US-ASCII';
$algorithm = $algorithm ? trim($algorithm) : 'REFERENCES';
$criteria = $criteria ? 'ALL '.trim($criteria) : 'ALL';
if (!$this->putLineC("thrd1 THREAD $algorithm $encoding $criteria")) {
return false;
}
do {
$line = trim($this->readLine(10000));
if (preg_match('/^\* THREAD/', $line)) {
$str = trim(substr($line, 8));
$depthmap = array();
$haschildren = array();
$tree = $this->parseThread($str, 0, strlen($str), null, null, 0, $depthmap, $haschildren);
}
} while (!$this->startsWith($line, 'thrd1', true, true));
$result_code = $this->parseResult($line);
if ($result_code == 0) {
return array($tree, $depthmap, $haschildren);
}
$this->error = "Thread: $line";
return false;
}
function search($folder, $criteria, $return_uid=false)
{
if (!$this->select($folder)) {
return false;
}
$data = '';
$query = 'srch1 ' . ($return_uid ? 'UID ' : '') . 'SEARCH ' . chop($criteria);
if (!$this->putLineC($query)) {
return false;
}
do {
$line = trim($this->readLine());
if ($this->startsWith($line, '* SEARCH')) {
$data .= substr($line, 8);
} else if (preg_match('/^[0-9 ]+$/', $line)) {
$data .= $line;
}
} while (!$this->startsWith($line, 'srch1', true, true));
$result_code = $this->parseResult($line);
if ($result_code == 0) {
return preg_split('/\s+/', $data, -1, PREG_SPLIT_NO_EMPTY);
}
$this->error = "Search: $line";
return false;
}
function move($messages, $from, $to)
{
if (!$from || !$to) {
return -1;
}
$r = $this->copy($messages, $from, $to);
if ($r==0) {
return $this->delete($from, $messages);
}
return $r;
}
function listMailboxes($ref, $mailbox)
{
return $this->_listMailboxes($ref, $mailbox, false);
}
function listSubscribed($ref, $mailbox)
{
return $this->_listMailboxes($ref, $mailbox, true);
}
private function _listMailboxes($ref, $mailbox, $subscribed=false)
{
if (empty($mailbox)) {
$mailbox = '*';
}
if (empty($ref) && $this->rootdir) {
$ref = $this->rootdir;
}
if ($subscribed) {
$key = 'lsb';
$command = 'LSUB';
}
else {
$key = 'lmb';
$command = 'LIST';
}
// send command
if (!$this->putLine($key." ".$command." \"". $this->escape($ref) ."\" \"". $this->escape($mailbox) ."\"")) {
$this->error = "Couldn't send $command command";
return false;
}
// get folder list
do {
$line = $this->readLine(500);
$line = $this->multLine($line, true);
$a = explode(' ', $line);
if (($line[0] == '*') && ($a[1] == $command)) {
$line = rtrim($line);
// split one line
$a = rcube_explode_quoted_string(' ', $line);
// last string is folder name
$folders[] = preg_replace(array('/^"/', '/"$/'), '', $this->unEscape($a[count($a)-1]));
// second from last is delimiter
$delim = trim($a[count($a)-2], '"');
}
} while (!$this->startsWith($line, $key, true));
if (is_array($folders)) {
return $folders;
} else if ($this->parseResult($line) == 0) {
return array();
}
$this->error = $line;
return false;
}
function fetchMIMEHeaders($mailbox, $id, $parts, $mime=true)
{
if (!$this->select($mailbox)) {
return false;
}
$result = false;
$parts = (array) $parts;
$key = 'fmh0';
$peeks = '';
$idx = 0;
$type = $mime ? 'MIME' : 'HEADER';
// format request
foreach($parts as $part)
$peeks[] = "BODY.PEEK[$part.$type]";
$request = "$key FETCH $id (" . implode(' ', $peeks) . ')';
// send request
if (!$this->putLine($request)) {
return false;
}
do {
$line = $this->readLine(1000);
$line = $this->multLine($line);
if (preg_match('/BODY\[([0-9\.]+)\.'.$type.'\]/', $line, $matches)) {
$idx = $matches[1];
$result[$idx] = preg_replace('/^(\* '.$id.' FETCH \()?\s*BODY\['.$idx.'\.'.$type.'\]\s+/', '', $line);
$result[$idx] = trim($result[$idx], '"');
$result[$idx] = rtrim($result[$idx], "\t\r\n\0\x0B");
}
} while (!$this->startsWith($line, $key, true));
return $result;
}
function fetchPartHeader($mailbox, $id, $is_uid=false, $part=NULL)
{
$part = empty($part) ? 'HEADER' : $part.'.MIME';
return $this->handlePartBody($mailbox, $id, $is_uid, $part);
}
function handlePartBody($mailbox, $id, $is_uid=false, $part='', $encoding=NULL, $print=NULL, $file=NULL)
{
if (!$this->select($mailbox)) {
return false;
}
switch ($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;
}
$reply_key = '* ' . $id;
$result = false;
// format request
$key = 'ftch0';
$request = $key . ($is_uid ? ' UID' : '') . " FETCH $id (BODY.PEEK[$part])";
// send request
if (!$this->putLine($request)) {
return false;
}
// receive reply line
do {
$line = chop($this->readLine(1000));
$a = explode(' ', $line);
} while (!($end = $this->startsWith($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 = $this->readLine(1024);
$len = strlen($line);
if ($len > $bytes) {
$line = substr($line, 0, $bytes);
$len = strlen($line);
}
$bytes -= $len;
if ($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 = $this->readLine(1024);
} while (!$this->startsWith($line, $key, true));
if ($result) {
if ($file) {
fwrite($file, $result);
} else if ($print) {
echo $result;
} else
return $result;
return true;
}
return false;
}
function createFolder($folder)
{
if ($this->putLine('c CREATE "' . $this->escape($folder) . '"')) {
do {
$line = $this->readLine(300);
} while (!$this->startsWith($line, 'c ', true, true));
return ($this->parseResult($line) == 0);
}
return false;
}
function renameFolder($from, $to)
{
if ($this->putLine('r RENAME "' . $this->escape($from) . '" "' . $this->escape($to) . '"')) {
do {
$line = $this->readLine(300);
} while (!$this->startsWith($line, 'r ', true, true));
return ($this->parseResult($line) == 0);
}
return false;
}
function deleteFolder($folder)
{
if ($this->putLine('d DELETE "' . $this->escape($folder). '"')) {
do {
$line = $this->readLine(300);
} while (!$this->startsWith($line, 'd ', true, true));
return ($this->parseResult($line) == 0);
}
return false;
}
function clearFolder($folder)
{
$num_in_trash = $this->countMessages($folder);
if ($num_in_trash > 0) {
$this->delete($folder, '1:*');
}
return ($this->expunge($folder) >= 0);
}
function subscribe($folder)
{
$query = 'sub1 SUBSCRIBE "' . $this->escape($folder). '"';
$this->putLine($query);
$line = trim($this->readLine(512));
return ($this->parseResult($line) == 0);
}
function unsubscribe($folder)
{
$query = 'usub1 UNSUBSCRIBE "' . $this->escape($folder) . '"';
$this->putLine($query);
$line = trim($this->readLine(512));
return ($this->parseResult($line) == 0);
}
function append($folder, &$message)
{
if (!$folder) {
return false;
}
$message = str_replace("\r", '', $message);
$message = str_replace("\n", "\r\n", $message);
$len = strlen($message);
if (!$len) {
return false;
}
$request = 'a APPEND "' . $this->escape($folder) .'" (\\Seen) {' . $len . '}';
if ($this->putLine($request)) {
$line = $this->readLine(512);
if ($line[0] != '+') {
// $errornum = $this->parseResult($line);
$this->error = "Cannot write to folder: $line";
return false;
}
if (!$this->putLine($message)) {
return false;
}
do {
$line = $this->readLine();
} while (!$this->startsWith($line, 'a ', true, true));
$result = ($this->parseResult($line) == 0);
if (!$result) {
$this->error = $line;
}
return $result;
}
$this->error = "Couldn't send command \"$request\"";
return false;
}
function appendFromFile($folder, $path, $headers=null, $separator="\n\n")
{
if (!$folder) {
return false;
}
// open message file
$in_fp = false;
if (file_exists(realpath($path))) {
$in_fp = fopen($path, 'r');
}
if (!$in_fp) {
$this->error = "Couldn't open $path for reading";
return false;
}
$len = filesize($path);
if (!$len) {
return false;
}
if ($headers) {
$headers = preg_replace('/[\r\n]+$/', '', $headers);
$len += strlen($headers) + strlen($separator);
}
// send APPEND command
$request = 'a APPEND "' . $this->escape($folder) . '" (\\Seen) {' . $len . '}';
if ($this->putLine($request)) {
$line = $this->readLine(512);
if ($line[0] != '+') {
//$errornum = $this->parseResult($line);
$this->error = "Cannot write to folder: $line";
return false;
}
// send headers with body separator
if ($headers) {
$this->putLine($headers . $separator, false);
}
// send file
while (!feof($in_fp) && $this->fp) {
$buffer = fgets($in_fp, 4096);
$this->putLine($buffer, false);
}
fclose($in_fp);
if (!$this->putLine('')) { // \r\n
return false;
}
// read response
do {
$line = $this->readLine();
} while (!$this->startsWith($line, 'a ', true, true));
$result = ($this->parseResult($line) == 0);
if (!$result) {
$this->error = $line;
}
return $result;
}
$this->error = "Couldn't send command \"$request\"";
return false;
}
function fetchStructureString($folder, $id, $is_uid=false)
{
if (!$this->select($folder)) {
return false;
}
$key = 'F1247';
$result = false;
if ($this->putLine($key . ($is_uid ? ' UID' : '') ." FETCH $id (BODYSTRUCTURE)")) {
do {
$line = $this->readLine(5000);
$line = $this->multLine($line, true);
if (!preg_match("/^$key/", $line))
$result .= $line;
} while (!$this->startsWith($line, $key, true, true));
$result = trim(substr($result, strpos($result, 'BODYSTRUCTURE')+13, -1));
}
return $result;
}
function getQuota()
{
/*
* GETQUOTAROOT "INBOX"
* QUOTAROOT INBOX user/rchijiiwa1
* QUOTA user/rchijiiwa1 (STORAGE 654 9765)
* OK Completed
*/
$result = false;
$quota_lines = array();
// get line(s) containing quota info
if ($this->putLine('QUOT1 GETQUOTAROOT "INBOX"')) {
do {
$line = chop($this->readLine(5000));
if ($this->startsWith($line, '* QUOTA ')) {
$quota_lines[] = $line;
}
} while (!$this->startsWith($line, 'QUOT1', true, 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 $result;
}
private function _xor($string, $string2)
{
$result = '';
$size = strlen($string);
for ($i=0; $i<$size; $i++) {
$result .= chr(ord($string[$i]) ^ ord($string2[$i]));
}
return $result;
}
private function strToTime($date)
{
// support non-standard "GMTXXXX" literal
$date = preg_replace('/GMT\s*([+-][0-9]+)/', '\\1', $date);
// if date parsing fails, we have a date in non-rfc format.
// remove token from the end and try again
while ((($ts = @strtotime($date))===false) || ($ts < 0)) {
$d = explode(' ', $date);
array_pop($d);
if (!$d) break;
$date = implode(' ', $d);
}
$ts = (int) $ts;
return $ts < 0 ? 0 : $ts;
}
private function SplitHeaderLine($string)
{
$pos = strpos($string, ':');
if ($pos>0) {
$res[0] = substr($string, 0, $pos);
$res[1] = trim(substr($string, $pos+1));
return $res;
}
return $string;
}
private function parseNamespace($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] = $this->parseNamespace($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 $data;
}
private function escape($string)
{
return strtr($string, array('"'=>'\\"', '\\' => '\\\\'));
}
private function unEscape($string)
{
return strtr($string, array('\\"'=>'"', '\\\\' => '\\'));
}
}
?>

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