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-rw-r--r--program/include/rcube_imap_generic.php2242
1 files changed, 2242 insertions, 0 deletions
diff --git a/program/include/rcube_imap_generic.php b/program/include/rcube_imap_generic.php
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+++ b/program/include/rcube_imap_generic.php
@@ -0,0 +1,2242 @@
+<?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> |
+ +-----------------------------------------------------------------------+
+
+ $Id$
+
+*/
+
+
+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();
+}
+
+
+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()
+ {
+ do {
+ $line = trim($this->readLine(1024));
+ } while ($line[0] == '*');
+
+ 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->error .= '';
+ $this->errornum = 0;
+ return $this->fp;
+ }
+
+ $this->error .= 'Authentication for ' . $user . ' failed (AUTH): "';
+ $this->error .= htmlspecialchars($line) . '"';
+ $this->errornum = $result;
+
+ return $result;
+ }
+
+ function login($user, $password)
+ {
+ $this->putLine('a001 LOGIN "'.$this->escape($user).'" "'.$this->escape($password).'"');
+
+ $line = $this->readReply();
+
+ // process result
+ $result = $this->parseResult($line);
+
+ if ($result == 0) {
+ $this->error .= '';
+ $this->errornum = 0;
+ return $this->fp;
+ }
+
+ fclose($this->fp);
+ $this->fp = false;
+
+ $this->error .= 'Authentication for ' . $user . ' failed (LOGIN): "';
+ $this->error .= htmlspecialchars($line)."\"";
+ $this->errornum = $result;
+
+ return $result;
+ }
+
+ function namespace()
+ {
+ if (isset($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";
+ $this->errornum = -1;
+ return false;
+ }
+ if (empty($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->namespace();
+ $this->logged = true;
+ return true;
+ } else {
+ return false;
+ }
+ }
+
+ function connected()
+ {
+ return ($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, $criteria)
+ {
+ if (!$this->select($folder)) {
+ return false;
+ }
+
+ $data = '';
+ $query = "srch1 SEARCH " . chop($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, $mailbox)
+ {
+ if (empty($mailbox)) {
+ $mailbox = '*';
+ }
+
+ if (empty($ref) && $this->rootdir) {
+ $ref = $this->rootdir;
+ }
+
+ // send command
+ if (!$this->putLine("lmb LIST \"". $this->escape($ref) ."\" \"". $this->escape($mailbox) ."\"")) {
+ return false;
+ }
+
+ $i = 0;
+ // get folder list
+ do {
+ $line = $this->readLine(500);
+ $line = $this->multLine($line, true);
+
+ $a = explode(' ', $line);
+ if (($line[0] == '*') && ($a[1] == 'LIST')) {
+ $line = rtrim($line);
+ // split one line
+ $a = rcube_explode_quoted_string(' ', $line);
+ // last string is folder name
+ $folders[$i] = preg_replace(array('/^"/', '/"$/'), '', $this->unEscape($a[count($a)-1]));
+ // second from last is delimiter
+ $delim = trim($a[count($a)-2], '"');
+ // is it a container?
+ $i++;
+ }
+ } while (!$this->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 $folders;
+ } else if ($this->parseResult($line) == 0) {
+ return array('INBOX');
+ }
+
+ $this->error = $line;
+ return false;
+ }
+
+ function listSubscribed($ref, $mailbox)
+ {
+ if (empty($mailbox)) {
+ $mailbox = '*';
+ }
+ if (empty($ref) && $this->rootdir) {
+ $ref = $this->rootdir;
+ }
+
+ $folders = array();
+
+ // send command
+ if (!$this->putLine('lsb LSUB "'. $this->escape($ref) . '" "' . $this->escape($mailbox).'"')) {
+ $this->error = "Couldn't send LSUB command";
+ return false;
+ }
+
+ $i = 0;
+
+ // get folder list
+ do {
+ $line = $this->readLine(500);
+ $line = $this->multLine($line, true);
+ $a = explode(' ', $line);
+
+ if (($line[0] == '*') && ($a[1] == 'LSUB' || $a[1] == 'LIST')) {
+ $line = rtrim($line);
+
+ // split one line
+ $a = rcube_explode_quoted_string(' ', $line);
+ // last string is folder name
+ $folder = preg_replace(array('/^"/', '/"$/'), '', $this->UnEscape($a[count($a)-1]));
+ // @TODO: do we need this check???
+ if (!in_array($folder, $folders)) {
+ $folders[$i] = $folder;
+ }
+ // second from last is delimiter
+ $delim = trim($a[count($a)-2], '"');
+ // is it a container?
+ $i++;
+ }
+ } while (!$this->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;
+ }
+ $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 $result;
+ }
+
+ private function iil_xor($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('\\"'=>'"', '\\\\' => '\\'));
+ }
+
+}
+
+?>
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-13 13:16:20 +0000