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-rw-r--r--program/include/rcube_imap_generic.php3694
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diff --git a/program/include/rcube_imap_generic.php b/program/include/rcube_imap_generic.php
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--- a/program/include/rcube_imap_generic.php
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@@ -1,3694 +0,0 @@
-<?php
-
-/**
- +-----------------------------------------------------------------------+
- | program/include/rcube_imap_generic.php |
- | |
- | This file is part of the Roundcube Webmail client |
- | Copyright (C) 2005-2012, The Roundcube Dev Team |
- | Copyright (C) 2011-2012, Kolab Systems AG |
- | |
- | Licensed under the GNU General Public License version 3 or |
- | any later version with exceptions for skins & plugins. |
- | See the README file for a full license statement. |
- | |
- | 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> |
- +-----------------------------------------------------------------------+
-*/
-
-
-/**
- * PHP based wrapper class to connect to an IMAP server
- *
- * @package Framework
- * @subpackage Storage
- */
-class rcube_imap_generic
-{
- public $error;
- public $errornum;
- public $result;
- public $resultcode;
- public $selected;
- public $data = array();
- public $flags = array(
- 'SEEN' => '\\Seen',
- 'DELETED' => '\\Deleted',
- 'ANSWERED' => '\\Answered',
- 'DRAFT' => '\\Draft',
- 'FLAGGED' => '\\Flagged',
- 'FORWARDED' => '$Forwarded',
- 'MDNSENT' => '$MDNSent',
- '*' => '\\*',
- );
-
- private $fp;
- private $host;
- private $logged = false;
- private $capability = array();
- private $capability_readed = false;
- private $prefs;
- private $cmd_tag;
- private $cmd_num = 0;
- private $resourceid;
- private $_debug = false;
- private $_debug_handler = false;
-
- const ERROR_OK = 0;
- const ERROR_NO = -1;
- const ERROR_BAD = -2;
- const ERROR_BYE = -3;
- const ERROR_UNKNOWN = -4;
- const ERROR_COMMAND = -5;
- const ERROR_READONLY = -6;
-
- const COMMAND_NORESPONSE = 1;
- const COMMAND_CAPABILITY = 2;
- const COMMAND_LASTLINE = 4;
-
- /**
- * Object constructor
- */
- function __construct()
- {
- }
-
- /**
- * Send simple (one line) command to the connection stream
- *
- * @param string $string Command string
- * @param bool $endln True if CRLF need to be added at the end of command
- *
- * @param int Number of bytes sent, False on error
- */
- function putLine($string, $endln=true)
- {
- if (!$this->fp)
- return false;
-
- if ($this->_debug) {
- $this->debug('C: '. rtrim($string));
- }
-
- $res = fwrite($this->fp, $string . ($endln ? "\r\n" : ''));
-
- if ($res === false) {
- @fclose($this->fp);
- $this->fp = null;
- }
-
- return $res;
- }
-
- /**
- * Send command to the connection stream with Command Continuation
- * Requests (RFC3501 7.5) and LITERAL+ (RFC2088) support
- *
- * @param string $string Command string
- * @param bool $endln True if CRLF need to be added at the end of command
- *
- * @return int|bool Number of bytes sent, False on error
- */
- function putLineC($string, $endln=true)
- {
- if (!$this->fp) {
- return false;
- }
-
- 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], $matches)) {
- // LITERAL+ support
- if ($this->prefs['literal+']) {
- $parts[$i+1] = sprintf("{%d+}\r\n", $matches[1]);
- }
-
- $bytes = $this->putLine($parts[$i].$parts[$i+1], false);
- if ($bytes === false)
- return false;
- $res += $bytes;
-
- // don't wait if server supports LITERAL+ capability
- if (!$this->prefs['literal+']) {
- $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;
- }
-
- /**
- * Reads line from the connection stream
- *
- * @param int $size Buffer size
- *
- * @return string Line of text response
- */
- function readLine($size=1024)
- {
- $line = '';
-
- if (!$size) {
- $size = 1024;
- }
-
- do {
- if ($this->eof()) {
- return $line ? $line : NULL;
- }
-
- $buffer = fgets($this->fp, $size);
-
- if ($buffer === false) {
- $this->closeSocket();
- break;
- }
- if ($this->_debug) {
- $this->debug('S: '. rtrim($buffer));
- }
- $line .= $buffer;
- } while (substr($buffer, -1) != "\n");
-
- return $line;
- }
-
- /**
- * Reads more data from the connection stream when provided
- * data contain string literal
- *
- * @param string $line Response text
- * @param bool $escape Enables escaping
- *
- * @return string Line of text response
- */
- function multLine($line, $escape = false)
- {
- $line = rtrim($line);
- if (preg_match('/\{([0-9]+)\}$/', $line, $m)) {
- $out = '';
- $str = substr($line, 0, -strlen($m[0]));
- $bytes = $m[1];
-
- while (strlen($out) < $bytes) {
- $line = $this->readBytes($bytes);
- if ($line === NULL)
- break;
- $out .= $line;
- }
-
- $line = $str . ($escape ? $this->escape($out) : $out);
- }
-
- return $line;
- }
-
- /**
- * Reads specified number of bytes from the connection stream
- *
- * @param int $bytes Number of bytes to get
- *
- * @return string Response text
- */
- function readBytes($bytes)
- {
- $data = '';
- $len = 0;
- while ($len < $bytes && !$this->eof())
- {
- $d = fread($this->fp, $bytes-$len);
- if ($this->_debug) {
- $this->debug('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;
- }
-
- /**
- * Reads complete response to the IMAP command
- *
- * @param array $untagged Will be filled with untagged response lines
- *
- * @return string Response text
- */
- function readReply(&$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;
- }
-
- /**
- * Response parser.
- *
- * @param string $string Response text
- * @param string $err_prefix Error message prefix
- *
- * @return int Response status
- */
- function parseResult($string, $err_prefix='')
- {
- if (preg_match('/^[a-z0-9*]+ (OK|NO|BAD|BYE)(.*)$/i', trim($string), $matches)) {
- $res = strtoupper($matches[1]);
- $str = trim($matches[2]);
-
- if ($res == 'OK') {
- $this->errornum = self::ERROR_OK;
- } else if ($res == 'NO') {
- $this->errornum = self::ERROR_NO;
- } else if ($res == 'BAD') {
- $this->errornum = self::ERROR_BAD;
- } else if ($res == 'BYE') {
- $this->closeSocket();
- $this->errornum = self::ERROR_BYE;
- }
-
- if ($str) {
- $str = trim($str);
- // get response string and code (RFC5530)
- if (preg_match("/^\[([a-z-]+)\]/i", $str, $m)) {
- $this->resultcode = strtoupper($m[1]);
- $str = trim(substr($str, strlen($m[1]) + 2));
- }
- else {
- $this->resultcode = null;
- // parse response for [APPENDUID 1204196876 3456]
- if (preg_match("/^\[APPENDUID [0-9]+ ([0-9]+)\]/i", $str, $m)) {
- $this->data['APPENDUID'] = $m[1];
- }
- // parse response for [COPYUID 1204196876 3456:3457 123:124]
- else if (preg_match("/^\[COPYUID [0-9]+ ([0-9,:]+) ([0-9,:]+)\]/i", $str, $m)) {
- $this->data['COPYUID'] = array($m[1], $m[2]);
- }
- }
- $this->result = $str;
-
- if ($this->errornum != self::ERROR_OK) {
- $this->error = $err_prefix ? $err_prefix.$str : $str;
- }
- }
-
- return $this->errornum;
- }
- return self::ERROR_UNKNOWN;
- }
-
- /**
- * Checks connection stream state.
- *
- * @return bool True if connection is closed
- */
- private function eof()
- {
- if (!is_resource($this->fp)) {
- return true;
- }
-
- // If a connection opened by fsockopen() wasn't closed
- // by the server, feof() will hang.
- $start = microtime(true);
-
- if (feof($this->fp) ||
- ($this->prefs['timeout'] && (microtime(true) - $start > $this->prefs['timeout']))
- ) {
- $this->closeSocket();
- return true;
- }
-
- return false;
- }
-
- /**
- * Closes connection stream.
- */
- private function closeSocket()
- {
- @fclose($this->fp);
- $this->fp = null;
- }
-
- /**
- * Error code/message setter.
- */
- function setError($code, $msg='')
- {
- $this->errornum = $code;
- $this->error = $msg;
- }
-
- /**
- * Checks response status.
- * Checks if command response line starts with specified prefix (or * BYE/BAD)
- *
- * @param string $string Response text
- * @param string $match Prefix to match with (case-sensitive)
- * @param bool $error Enables BYE/BAD checking
- * @param bool $nonempty Enables empty response checking
- *
- * @return bool True any check is true or connection is closed.
- */
- function startsWith($string, $match, $error=false, $nonempty=false)
- {
- if (!$this->fp) {
- return true;
- }
- if (strncmp($string, $match, strlen($match)) == 0) {
- return true;
- }
- if ($error && preg_match('/^\* (BYE|BAD) /i', $string, $m)) {
- if (strtoupper($m[1]) == 'BYE') {
- $this->closeSocket();
- }
- return true;
- }
- if ($nonempty && !strlen($string)) {
- return true;
- }
- return false;
- }
-
- private function hasCapability($name)
- {
- if (empty($this->capability) || $name == '') {
- return false;
- }
-
- if (in_array($name, $this->capability)) {
- return true;
- }
- else if (strpos($name, '=')) {
- return false;
- }
-
- $result = array();
- foreach ($this->capability as $cap) {
- $entry = explode('=', $cap);
- if ($entry[0] == $name) {
- $result[] = $entry[1];
- }
- }
-
- return !empty($result) ? $result : false;
- }
-
- /**
- * Capabilities checker
- *
- * @param string $name Capability name
- *
- * @return mixed Capability values array for key=value pairs, true/false for others
- */
- function getCapability($name)
- {
- $result = $this->hasCapability($name);
-
- if (!empty($result)) {
- return $result;
- }
- else if ($this->capability_readed) {
- return false;
- }
-
- // get capabilities (only once) because initial
- // optional CAPABILITY response may differ
- $result = $this->execute('CAPABILITY');
-
- if ($result[0] == self::ERROR_OK) {
- $this->parseCapability($result[1]);
- }
-
- $this->capability_readed = true;
-
- return $this->hasCapability($name);
- }
-
- function clearCapability()
- {
- $this->capability = array();
- $this->capability_readed = false;
- }
-
- /**
- * DIGEST-MD5/CRAM-MD5/PLAIN Authentication
- *
- * @param string $user
- * @param string $pass
- * @param string $type Authentication type (PLAIN/CRAM-MD5/DIGEST-MD5)
- *
- * @return resource Connection resourse on success, error code on error
- */
- function authenticate($user, $pass, $type='PLAIN')
- {
- if ($type == 'CRAM-MD5' || $type == 'DIGEST-MD5') {
- if ($type == 'DIGEST-MD5' && !class_exists('Auth_SASL')) {
- $this->setError(self::ERROR_BYE,
- "The Auth_SASL package is required for DIGEST-MD5 authentication");
- return self::ERROR_BAD;
- }
-
- $this->putLine($this->nextTag() . " AUTHENTICATE $type");
- $line = trim($this->readReply());
-
- if ($line[0] == '+') {
- $challenge = substr($line, 2);
- }
- else {
- return $this->parseResult($line);
- }
-
- if ($type == 'CRAM-MD5') {
- // RFC2195: CRAM-MD5
- $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, $ipad) . base64_decode($challenge))));
- $reply = base64_encode($user . ' ' . $hash);
-
- // send result
- $this->putLine($reply);
- }
- else {
- // RFC2831: DIGEST-MD5
- // proxy authorization
- if (!empty($this->prefs['auth_cid'])) {
- $authc = $this->prefs['auth_cid'];
- $pass = $this->prefs['auth_pw'];
- }
- else {
- $authc = $user;
- $user = '';
- }
- $auth_sasl = Auth_SASL::factory('digestmd5');
- $reply = base64_encode($auth_sasl->getResponse($authc, $pass,
- base64_decode($challenge), $this->host, 'imap', $user));
-
- // send result
- $this->putLine($reply);
- $line = trim($this->readReply());
-
- if ($line[0] == '+') {
- $challenge = substr($line, 2);
- }
- else {
- return $this->parseResult($line);
- }
-
- // check response
- $challenge = base64_decode($challenge);
- if (strpos($challenge, 'rspauth=') === false) {
- $this->setError(self::ERROR_BAD,
- "Unexpected response from server to DIGEST-MD5 response");
- return self::ERROR_BAD;
- }
-
- $this->putLine('');
- }
-
- $line = $this->readReply();
- $result = $this->parseResult($line);
- }
- else { // PLAIN
- // proxy authorization
- if (!empty($this->prefs['auth_cid'])) {
- $authc = $this->prefs['auth_cid'];
- $pass = $this->prefs['auth_pw'];
- }
- else {
- $authc = $user;
- $user = '';
- }
-
- $reply = base64_encode($user . chr(0) . $authc . chr(0) . $pass);
-
- // RFC 4959 (SASL-IR): save one round trip
- if ($this->getCapability('SASL-IR')) {
- list($result, $line) = $this->execute("AUTHENTICATE PLAIN", array($reply),
- self::COMMAND_LASTLINE | self::COMMAND_CAPABILITY);
- }
- else {
- $this->putLine($this->nextTag() . " AUTHENTICATE PLAIN");
- $line = trim($this->readReply());
-
- if ($line[0] != '+') {
- return $this->parseResult($line);
- }
-
- // send result, get reply and process it
- $this->putLine($reply);
- $line = $this->readReply();
- $result = $this->parseResult($line);
- }
- }
-
- if ($result == self::ERROR_OK) {
- // optional CAPABILITY response
- if ($line && preg_match('/\[CAPABILITY ([^]]+)\]/i', $line, $matches)) {
- $this->parseCapability($matches[1], true);
- }
- return $this->fp;
- }
- else {
- $this->setError($result, "AUTHENTICATE $type: $line");
- }
-
- return $result;
- }
-
- /**
- * LOGIN Authentication
- *
- * @param string $user
- * @param string $pass
- *
- * @return resource Connection resourse on success, error code on error
- */
- function login($user, $password)
- {
- list($code, $response) = $this->execute('LOGIN', array(
- $this->escape($user), $this->escape($password)), self::COMMAND_CAPABILITY);
-
- // re-set capabilities list if untagged CAPABILITY response provided
- if (preg_match('/\* CAPABILITY (.+)/i', $response, $matches)) {
- $this->parseCapability($matches[1], true);
- }
-
- if ($code == self::ERROR_OK) {
- return $this->fp;
- }
-
- return $code;
- }
-
- /**
- * Detects hierarchy delimiter
- *
- * @return string The delimiter
- */
- function getHierarchyDelimiter()
- {
- if ($this->prefs['delimiter']) {
- return $this->prefs['delimiter'];
- }
-
- // try (LIST "" ""), should return delimiter (RFC2060 Sec 6.3.8)
- list($code, $response) = $this->execute('LIST',
- array($this->escape(''), $this->escape('')));
-
- if ($code == self::ERROR_OK) {
- $args = $this->tokenizeResponse($response, 4);
- $delimiter = $args[3];
-
- if (strlen($delimiter) > 0) {
- return ($this->prefs['delimiter'] = $delimiter);
- }
- }
-
- return NULL;
- }
-
- /**
- * NAMESPACE handler (RFC 2342)
- *
- * @return array Namespace data hash (personal, other, shared)
- */
- function getNamespace()
- {
- if (array_key_exists('namespace', $this->prefs)) {
- return $this->prefs['namespace'];
- }
-
- if (!$this->getCapability('NAMESPACE')) {
- return self::ERROR_BAD;
- }
-
- list($code, $response) = $this->execute('NAMESPACE');
-
- if ($code == self::ERROR_OK && preg_match('/^\* NAMESPACE /', $response)) {
- $data = $this->tokenizeResponse(substr($response, 11));
- }
-
- if (!is_array($data)) {
- return $code;
- }
-
- $this->prefs['namespace'] = array(
- 'personal' => $data[0],
- 'other' => $data[1],
- 'shared' => $data[2],
- );
-
- return $this->prefs['namespace'];
- }
-
- /**
- * Connects to IMAP server and authenticates.
- *
- * @param string $host Server hostname or IP
- * @param string $user User name
- * @param string $password Password
- * @param array $options Connection and class options
- *
- * @return bool True on success, False on failure
- */
- function connect($host, $user, $password, $options=null)
- {
- // set options
- if (is_array($options)) {
- $this->prefs = $options;
- }
- // set auth method
- if (!empty($this->prefs['auth_type'])) {
- $auth_method = strtoupper($this->prefs['auth_type']);
- } else {
- $auth_method = 'CHECK';
- }
-
- $result = false;
-
- // initialize connection
- $this->error = '';
- $this->errornum = self::ERROR_OK;
- $this->selected = null;
- $this->user = $user;
- $this->host = $host;
- $this->logged = false;
-
- // check input
- if (empty($host)) {
- $this->setError(self::ERROR_BAD, "Empty host");
- return false;
- }
- if (empty($user)) {
- $this->setError(self::ERROR_NO, "Empty user");
- return false;
- }
- if (empty($password)) {
- $this->setError(self::ERROR_NO, "Empty password");
- return false;
- }
-
- if (!$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'] . '://' . $host;
- }
-
- if ($this->prefs['timeout'] <= 0) {
- $this->prefs['timeout'] = ini_get('default_socket_timeout');
- }
-
- // Connect
- $this->fp = @fsockopen($host, $this->prefs['port'], $errno, $errstr, $this->prefs['timeout']);
-
- if (!$this->fp) {
- $this->setError(self::ERROR_BAD, sprintf("Could not connect to %s:%d: %s", $host, $this->prefs['port'], $errstr));
- return false;
- }
-
- if ($this->prefs['timeout'] > 0)
- stream_set_timeout($this->fp, $this->prefs['timeout']);
-
- $line = trim(fgets($this->fp, 8192));
-
- if ($this->_debug) {
- // set connection identifier for debug output
- preg_match('/#([0-9]+)/', (string)$this->fp, $m);
- $this->resourceid = strtoupper(substr(md5($m[1].$this->user.microtime()), 0, 4));
-
- if ($line)
- $this->debug('S: '. $line);
- }
-
- // Connected to wrong port or connection error?
- if (!preg_match('/^\* (OK|PREAUTH)/i', $line)) {
- if ($line)
- $error = sprintf("Wrong startup greeting (%s:%d): %s", $host, $this->prefs['port'], $line);
- else
- $error = sprintf("Empty startup greeting (%s:%d)", $host, $this->prefs['port']);
-
- $this->setError(self::ERROR_BAD, $error);
- $this->closeConnection();
- return false;
- }
-
- // RFC3501 [7.1] optional CAPABILITY response
- if (preg_match('/\[CAPABILITY ([^]]+)\]/i', $line, $matches)) {
- $this->parseCapability($matches[1], true);
- }
-
- // TLS connection
- if ($this->prefs['ssl_mode'] == 'tls' && $this->getCapability('STARTTLS')) {
- if (version_compare(PHP_VERSION, '5.1.0', '>=')) {
- $res = $this->execute('STARTTLS');
-
- if ($res[0] != self::ERROR_OK) {
- $this->closeConnection();
- return false;
- }
-
- if (!stream_socket_enable_crypto($this->fp, true, STREAM_CRYPTO_METHOD_TLS_CLIENT)) {
- $this->setError(self::ERROR_BAD, "Unable to negotiate TLS");
- $this->closeConnection();
- return false;
- }
-
- // Now we're secure, capabilities need to be reread
- $this->clearCapability();
- }
- }
-
- // Send ID info
- if (!empty($this->prefs['ident']) && $this->getCapability('ID')) {
- $this->id($this->prefs['ident']);
- }
-
- $auth_methods = array();
- $result = null;
-
- // check for supported auth methods
- if ($auth_method == 'CHECK') {
- if ($auth_caps = $this->getCapability('AUTH')) {
- $auth_methods = $auth_caps;
- }
- // RFC 2595 (LOGINDISABLED) LOGIN disabled when connection is not secure
- $login_disabled = $this->getCapability('LOGINDISABLED');
- if (($key = array_search('LOGIN', $auth_methods)) !== false) {
- if ($login_disabled) {
- unset($auth_methods[$key]);
- }
- }
- else if (!$login_disabled) {
- $auth_methods[] = 'LOGIN';
- }
-
- // Use best (for security) supported authentication method
- foreach (array('DIGEST-MD5', 'CRAM-MD5', 'CRAM_MD5', 'PLAIN', 'LOGIN') as $auth_method) {
- if (in_array($auth_method, $auth_methods)) {
- break;
- }
- }
- }
- else {
- // Prevent from sending credentials in plain text when connection is not secure
- if ($auth_method == 'LOGIN' && $this->getCapability('LOGINDISABLED')) {
- $this->setError(self::ERROR_BAD, "Login disabled by IMAP server");
- $this->closeConnection();
- return false;
- }
- // replace AUTH with CRAM-MD5 for backward compat.
- if ($auth_method == 'AUTH') {
- $auth_method = 'CRAM-MD5';
- }
- }
-
- // pre-login capabilities can be not complete
- $this->capability_readed = false;
-
- // Authenticate
- switch ($auth_method) {
- case 'CRAM_MD5':
- $auth_method = 'CRAM-MD5';
- case 'CRAM-MD5':
- case 'DIGEST-MD5':
- case 'PLAIN':
- $result = $this->authenticate($user, $password, $auth_method);
- break;
- case 'LOGIN':
- $result = $this->login($user, $password);
- break;
- default:
- $this->setError(self::ERROR_BAD, "Configuration error. Unknown auth method: $auth_method");
- }
-
- // Connected and authenticated
- if (is_resource($result)) {
- if ($this->prefs['force_caps']) {
- $this->clearCapability();
- }
- $this->logged = true;
-
- return true;
- }
-
- $this->closeConnection();
-
- return false;
- }
-
- /**
- * Checks connection status
- *
- * @return bool True if connection is active and user is logged in, False otherwise.
- */
- function connected()
- {
- return ($this->fp && $this->logged) ? true : false;
- }
-
- /**
- * Closes connection with logout.
- */
- function closeConnection()
- {
- if ($this->putLine($this->nextTag() . ' LOGOUT')) {
- $this->readReply();
- }
-
- $this->closeSocket();
- }
-
- /**
- * Executes SELECT command (if mailbox is already not in selected state)
- *
- * @param string $mailbox Mailbox name
- * @param array $qresync_data QRESYNC data (RFC5162)
- *
- * @return boolean True on success, false on error
- */
- function select($mailbox, $qresync_data = null)
- {
- if (!strlen($mailbox)) {
- return false;
- }
-
- if ($this->selected === $mailbox) {
- return true;
- }
-/*
- Temporary commented out because Courier returns \Noselect for INBOX
- Requires more investigation
-
- if (is_array($this->data['LIST']) && is_array($opts = $this->data['LIST'][$mailbox])) {
- if (in_array('\\Noselect', $opts)) {
- return false;
- }
- }
-*/
- $params = array($this->escape($mailbox));
-
- // QRESYNC data items
- // 0. the last known UIDVALIDITY,
- // 1. the last known modification sequence,
- // 2. the optional set of known UIDs, and
- // 3. an optional parenthesized list of known sequence ranges and their
- // corresponding UIDs.
- if (!empty($qresync_data)) {
- if (!empty($qresync_data[2]))
- $qresync_data[2] = self::compressMessageSet($qresync_data[2]);
- $params[] = array('QRESYNC', $qresync_data);
- }
-
- list($code, $response) = $this->execute('SELECT', $params);
-
- if ($code == self::ERROR_OK) {
- $response = explode("\r\n", $response);
- foreach ($response as $line) {
- if (preg_match('/^\* ([0-9]+) (EXISTS|RECENT)$/i', $line, $m)) {
- $this->data[strtoupper($m[2])] = (int) $m[1];
- }
- else if (preg_match('/^\* OK \[/i', $line, $match)) {
- $line = substr($line, 6);
- if (preg_match('/^(UIDNEXT|UIDVALIDITY|UNSEEN) ([0-9]+)/i', $line, $match)) {
- $this->data[strtoupper($match[1])] = (int) $match[2];
- }
- else if (preg_match('/^(HIGHESTMODSEQ) ([0-9]+)/i', $line, $match)) {
- $this->data[strtoupper($match[1])] = (string) $match[2];
- }
- else if (preg_match('/^(NOMODSEQ)/i', $line, $match)) {
- $this->data[strtoupper($match[1])] = true;
- }
- else if (preg_match('/^PERMANENTFLAGS \(([^\)]+)\)/iU', $line, $match)) {
- $this->data['PERMANENTFLAGS'] = explode(' ', $match[1]);
- }
- }
- // QRESYNC FETCH response (RFC5162)
- else if (preg_match('/^\* ([0-9+]) FETCH/i', $line, $match)) {
- $line = substr($line, strlen($match[0]));
- $fetch_data = $this->tokenizeResponse($line, 1);
- $data = array('id' => $match[1]);
-
- for ($i=0, $size=count($fetch_data); $i<$size; $i+=2) {
- $data[strtolower($fetch_data[$i])] = $fetch_data[$i+1];
- }
-
- $this->data['QRESYNC'][$data['uid']] = $data;
- }
- // QRESYNC VANISHED response (RFC5162)
- else if (preg_match('/^\* VANISHED [()EARLIER]*/i', $line, $match)) {
- $line = substr($line, strlen($match[0]));
- $v_data = $this->tokenizeResponse($line, 1);
-
- $this->data['VANISHED'] = $v_data;
- }
- }
-
- $this->data['READ-WRITE'] = $this->resultcode != 'READ-ONLY';
-
- $this->selected = $mailbox;
- return true;
- }
-
- return false;
- }
-
- /**
- * Executes STATUS command
- *
- * @param string $mailbox Mailbox name
- * @param array $items Additional requested item names. By default
- * MESSAGES and UNSEEN are requested. Other defined
- * in RFC3501: UIDNEXT, UIDVALIDITY, RECENT
- *
- * @return array Status item-value hash
- * @since 0.5-beta
- */
- function status($mailbox, $items=array())
- {
- if (!strlen($mailbox)) {
- return false;
- }
-
- if (!in_array('MESSAGES', $items)) {
- $items[] = 'MESSAGES';
- }
- if (!in_array('UNSEEN', $items)) {
- $items[] = 'UNSEEN';
- }
-
- list($code, $response) = $this->execute('STATUS', array($this->escape($mailbox),
- '(' . implode(' ', (array) $items) . ')'));
-
- if ($code == self::ERROR_OK && preg_match('/\* STATUS /i', $response)) {
- $result = array();
- $response = substr($response, 9); // remove prefix "* STATUS "
-
- list($mbox, $items) = $this->tokenizeResponse($response, 2);
-
- // Fix for #1487859. Some buggy server returns not quoted
- // folder name with spaces. Let's try to handle this situation
- if (!is_array($items) && ($pos = strpos($response, '(')) !== false) {
- $response = substr($response, $pos);
- $items = $this->tokenizeResponse($response, 1);
- if (!is_array($items)) {
- return $result;
- }
- }
-
- for ($i=0, $len=count($items); $i<$len; $i += 2) {
- $result[$items[$i]] = $items[$i+1];
- }
-
- $this->data['STATUS:'.$mailbox] = $result;
-
- return $result;
- }
-
- return false;
- }
-
- /**
- * Executes EXPUNGE command
- *
- * @param string $mailbox Mailbox name
- * @param string $messages Message UIDs to expunge
- *
- * @return boolean True on success, False on error
- */
- function expunge($mailbox, $messages=NULL)
- {
- if (!$this->select($mailbox)) {
- return false;
- }
-
- if (!$this->data['READ-WRITE']) {
- $this->setError(self::ERROR_READONLY, "Mailbox is read-only", 'EXPUNGE');
- return false;
- }
-
- // Clear internal status cache
- unset($this->data['STATUS:'.$mailbox]);
-
- if ($messages)
- $result = $this->execute('UID EXPUNGE', array($messages), self::COMMAND_NORESPONSE);
- else
- $result = $this->execute('EXPUNGE', null, self::COMMAND_NORESPONSE);
-
- if ($result == self::ERROR_OK) {
- $this->selected = null; // state has changed, need to reselect
- return true;
- }
-
- return false;
- }
-
- /**
- * Executes CLOSE command
- *
- * @return boolean True on success, False on error
- * @since 0.5
- */
- function close()
- {
- $result = $this->execute('CLOSE', NULL, self::COMMAND_NORESPONSE);
-
- if ($result == self::ERROR_OK) {
- $this->selected = null;
- return true;
- }
-
- return false;
- }
-
- /**
- * Folder subscription (SUBSCRIBE)
- *
- * @param string $mailbox Mailbox name
- *
- * @return boolean True on success, False on error
- */
- function subscribe($mailbox)
- {
- $result = $this->execute('SUBSCRIBE', array($this->escape($mailbox)),
- self::COMMAND_NORESPONSE);
-
- return ($result == self::ERROR_OK);
- }
-
- /**
- * Folder unsubscription (UNSUBSCRIBE)
- *
- * @param string $mailbox Mailbox name
- *
- * @return boolean True on success, False on error
- */
- function unsubscribe($mailbox)
- {
- $result = $this->execute('UNSUBSCRIBE', array($this->escape($mailbox)),
- self::COMMAND_NORESPONSE);
-
- return ($result == self::ERROR_OK);
- }
-
- /**
- * Folder creation (CREATE)
- *
- * @param string $mailbox Mailbox name
- *
- * @return bool True on success, False on error
- */
- function createFolder($mailbox)
- {
- $result = $this->execute('CREATE', array($this->escape($mailbox)),
- self::COMMAND_NORESPONSE);
-
- return ($result == self::ERROR_OK);
- }
-
- /**
- * Folder renaming (RENAME)
- *
- * @param string $mailbox Mailbox name
- *
- * @return bool True on success, False on error
- */
- function renameFolder($from, $to)
- {
- $result = $this->execute('RENAME', array($this->escape($from), $this->escape($to)),
- self::COMMAND_NORESPONSE);
-
- return ($result == self::ERROR_OK);
- }
-
- /**
- * Executes DELETE command
- *
- * @param string $mailbox Mailbox name
- *
- * @return boolean True on success, False on error
- */
- function deleteFolder($mailbox)
- {
- $result = $this->execute('DELETE', array($this->escape($mailbox)),
- self::COMMAND_NORESPONSE);
-
- return ($result == self::ERROR_OK);
- }
-
- /**
- * Removes all messages in a folder
- *
- * @param string $mailbox Mailbox name
- *
- * @return boolean True on success, False on error
- */
- function clearFolder($mailbox)
- {
- $num_in_trash = $this->countMessages($mailbox);
- if ($num_in_trash > 0) {
- $res = $this->flag($mailbox, '1:*', 'DELETED');
- }
-
- if ($res) {
- if ($this->selected === $mailbox)
- $res = $this->close();
- else
- $res = $this->expunge($mailbox);
- }
-
- return $res;
- }
-
- /**
- * Returns list of mailboxes
- *
- * @param string $ref Reference name
- * @param string $mailbox Mailbox name
- * @param array $status_opts (see self::_listMailboxes)
- * @param array $select_opts (see self::_listMailboxes)
- *
- * @return array List of mailboxes or hash of options if $status_opts argument
- * is non-empty.
- */
- function listMailboxes($ref, $mailbox, $status_opts=array(), $select_opts=array())
- {
- return $this->_listMailboxes($ref, $mailbox, false, $status_opts, $select_opts);
- }
-
- /**
- * Returns list of subscribed mailboxes
- *
- * @param string $ref Reference name
- * @param string $mailbox Mailbox name
- * @param array $status_opts (see self::_listMailboxes)
- *
- * @return array List of mailboxes or hash of options if $status_opts argument
- * is non-empty.
- */
- function listSubscribed($ref, $mailbox, $status_opts=array())
- {
- return $this->_listMailboxes($ref, $mailbox, true, $status_opts, NULL);
- }
-
- /**
- * IMAP LIST/LSUB command
- *
- * @param string $ref Reference name
- * @param string $mailbox Mailbox name
- * @param bool $subscribed Enables returning subscribed mailboxes only
- * @param array $status_opts List of STATUS options (RFC5819: LIST-STATUS)
- * Possible: MESSAGES, RECENT, UIDNEXT, UIDVALIDITY, UNSEEN
- * @param array $select_opts List of selection options (RFC5258: LIST-EXTENDED)
- * Possible: SUBSCRIBED, RECURSIVEMATCH, REMOTE
- *
- * @return array List of mailboxes or hash of options if $status_ops argument
- * is non-empty.
- */
- private function _listMailboxes($ref, $mailbox, $subscribed=false,
- $status_opts=array(), $select_opts=array())
- {
- if (!strlen($mailbox)) {
- $mailbox = '*';
- }
-
- $args = array();
-
- if (!empty($select_opts) && $this->getCapability('LIST-EXTENDED')) {
- $select_opts = (array) $select_opts;
-
- $args[] = '(' . implode(' ', $select_opts) . ')';
- }
-
- $args[] = $this->escape($ref);
- $args[] = $this->escape($mailbox);
-
- if (!empty($status_opts) && $this->getCapability('LIST-STATUS')) {
- $status_opts = (array) $status_opts;
- $lstatus = true;
-
- $args[] = 'RETURN (STATUS (' . implode(' ', $status_opts) . '))';
- }
-
- list($code, $response) = $this->execute($subscribed ? 'LSUB' : 'LIST', $args);
-
- if ($code == self::ERROR_OK) {
- $folders = array();
- $last = 0;
- $pos = 0;
- $response .= "\r\n";
-
- while ($pos = strpos($response, "\r\n", $pos+1)) {
- // literal string, not real end-of-command-line
- if ($response[$pos-1] == '}') {
- continue;
- }
-
- $line = substr($response, $last, $pos - $last);
- $last = $pos + 2;
-
- if (!preg_match('/^\* (LIST|LSUB|STATUS) /i', $line, $m)) {
- continue;
- }
- $cmd = strtoupper($m[1]);
- $line = substr($line, strlen($m[0]));
-
- // * LIST (<options>) <delimiter> <mailbox>
- if ($cmd == 'LIST' || $cmd == 'LSUB') {
- list($opts, $delim, $mailbox) = $this->tokenizeResponse($line, 3);
-
- // Add to result array
- if (!$lstatus) {
- $folders[] = $mailbox;
- }
- else {
- $folders[$mailbox] = array();
- }
-
- // store LSUB options only if not empty, this way
- // we can detect a situation when LIST doesn't return specified folder
- if (!empty($opts) || $cmd == 'LIST') {
- // Add to options array
- if (empty($this->data['LIST'][$mailbox]))
- $this->data['LIST'][$mailbox] = $opts;
- else if (!empty($opts))
- $this->data['LIST'][$mailbox] = array_unique(array_merge(
- $this->data['LIST'][$mailbox], $opts));
- }
- }
- // * STATUS <mailbox> (<result>)
- else if ($cmd == 'STATUS') {
- list($mailbox, $status) = $this->tokenizeResponse($line, 2);
-
- for ($i=0, $len=count($status); $i<$len; $i += 2) {
- list($name, $value) = $this->tokenizeResponse($status, 2);
- $folders[$mailbox][$name] = $value;
- }
- }
- }
-
- return $folders;
- }
-
- return false;
- }
-
- /**
- * Returns count of all messages in a folder
- *
- * @param string $mailbox Mailbox name
- *
- * @return int Number of messages, False on error
- */
- function countMessages($mailbox, $refresh = false)
- {
- if ($refresh) {
- $this->selected = null;
- }
-
- if ($this->selected === $mailbox) {
- return $this->data['EXISTS'];
- }
-
- // Check internal cache
- $cache = $this->data['STATUS:'.$mailbox];
- if (!empty($cache) && isset($cache['MESSAGES'])) {
- return (int) $cache['MESSAGES'];
- }
-
- // Try STATUS (should be faster than SELECT)
- $counts = $this->status($mailbox);
- if (is_array($counts)) {
- return (int) $counts['MESSAGES'];
- }
-
- return false;
- }
-
- /**
- * Returns count of messages with \Recent flag in a folder
- *
- * @param string $mailbox Mailbox name
- *
- * @return int Number of messages, False on error
- */
- function countRecent($mailbox)
- {
- if (!strlen($mailbox)) {
- $mailbox = 'INBOX';
- }
-
- $this->select($mailbox);
-
- if ($this->selected === $mailbox) {
- return $this->data['RECENT'];
- }
-
- return false;
- }
-
- /**
- * Returns count of messages without \Seen flag in a specified folder
- *
- * @param string $mailbox Mailbox name
- *
- * @return int Number of messages, False on error
- */
- function countUnseen($mailbox)
- {
- // Check internal cache
- $cache = $this->data['STATUS:'.$mailbox];
- if (!empty($cache) && isset($cache['UNSEEN'])) {
- return (int) $cache['UNSEEN'];
- }
-
- // Try STATUS (should be faster than SELECT+SEARCH)
- $counts = $this->status($mailbox);
- if (is_array($counts)) {
- return (int) $counts['UNSEEN'];
- }
-
- // Invoke SEARCH as a fallback
- $index = $this->search($mailbox, 'ALL UNSEEN', false, array('COUNT'));
- if (!$index->is_error()) {
- return $index->count();
- }
-
- return false;
- }
-
- /**
- * Executes ID command (RFC2971)
- *
- * @param array $items Client identification information key/value hash
- *
- * @return array Server identification information key/value hash
- * @since 0.6
- */
- function id($items=array())
- {
- if (is_array($items) && !empty($items)) {
- foreach ($items as $key => $value) {
- $args[] = $this->escape($key, true);
- $args[] = $this->escape($value, true);
- }
- }
-
- list($code, $response) = $this->execute('ID', array(
- !empty($args) ? '(' . implode(' ', (array) $args) . ')' : $this->escape(null)
- ));
-
-
- if ($code == self::ERROR_OK && preg_match('/\* ID /i', $response)) {
- $response = substr($response, 5); // remove prefix "* ID "
- $items = $this->tokenizeResponse($response, 1);
- $result = null;
-
- for ($i=0, $len=count($items); $i<$len; $i += 2) {
- $result[$items[$i]] = $items[$i+1];
- }
-
- return $result;
- }
-
- return false;
- }
-
- /**
- * Executes ENABLE command (RFC5161)
- *
- * @param mixed $extension Extension name to enable (or array of names)
- *
- * @return array|bool List of enabled extensions, False on error
- * @since 0.6
- */
- function enable($extension)
- {
- if (empty($extension)) {
- return false;
- }
-
- if (!$this->hasCapability('ENABLE')) {
- return false;
- }
-
- if (!is_array($extension)) {
- $extension = array($extension);
- }
-
- if (!empty($this->extensions_enabled)) {
- // check if all extensions are already enabled
- $diff = array_diff($extension, $this->extensions_enabled);
-
- if (empty($diff)) {
- return $extension;
- }
-
- // Make sure the mailbox isn't selected, before enabling extension(s)
- if ($this->selected !== null) {
- $this->close();
- }
- }
-
- list($code, $response) = $this->execute('ENABLE', $extension);
-
- if ($code == self::ERROR_OK && preg_match('/\* ENABLED /i', $response)) {
- $response = substr($response, 10); // remove prefix "* ENABLED "
- $result = (array) $this->tokenizeResponse($response);
-
- $this->extensions_enabled = array_unique(array_merge((array)$this->extensions_enabled, $result));
-
- return $this->extensions_enabled;
- }
-
- return false;
- }
-
- /**
- * Executes SORT command
- *
- * @param string $mailbox Mailbox name
- * @param string $field Field to sort by (ARRIVAL, CC, DATE, FROM, SIZE, SUBJECT, TO)
- * @param string $add Searching criteria
- * @param bool $return_uid Enables UID SORT usage
- * @param string $encoding Character set
- *
- * @return rcube_result_index Response data
- */
- function sort($mailbox, $field, $add='', $return_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[$field]) {
- return new rcube_result_index($mailbox);
- }
-
- if (!$this->select($mailbox)) {
- return new rcube_result_index($mailbox);
- }
-
- // RFC 5957: SORT=DISPLAY
- if (($field == 'FROM' || $field == 'TO') && $this->getCapability('SORT=DISPLAY')) {
- $field = 'DISPLAY' . $field;
- }
-
- // message IDs
- if (!empty($add))
- $add = $this->compressMessageSet($add);
-
- list($code, $response) = $this->execute($return_uid ? 'UID SORT' : 'SORT',
- array("($field)", $encoding, 'ALL' . (!empty($add) ? ' '.$add : '')));
-
- if ($code != self::ERROR_OK) {
- $response = null;
- }
-
- return new rcube_result_index($mailbox, $response);
- }
-
- /**
- * Executes THREAD command
- *
- * @param string $mailbox Mailbox name
- * @param string $algorithm Threading algorithm (ORDEREDSUBJECT, REFERENCES, REFS)
- * @param string $criteria Searching criteria
- * @param bool $return_uid Enables UIDs in result instead of sequence numbers
- * @param string $encoding Character set
- *
- * @return rcube_result_thread Thread data
- */
- function thread($mailbox, $algorithm='REFERENCES', $criteria='', $return_uid=false, $encoding='US-ASCII')
- {
- $old_sel = $this->selected;
-
- if (!$this->select($mailbox)) {
- return new rcube_result_thread($mailbox);
- }
-
- // return empty result when folder is empty and we're just after SELECT
- if ($old_sel != $mailbox && !$this->data['EXISTS']) {
- return new rcube_result_thread($mailbox);
- }
-
- $encoding = $encoding ? trim($encoding) : 'US-ASCII';
- $algorithm = $algorithm ? trim($algorithm) : 'REFERENCES';
- $criteria = $criteria ? 'ALL '.trim($criteria) : 'ALL';
- $data = '';
-
- list($code, $response) = $this->execute($return_uid ? 'UID THREAD' : 'THREAD',
- array($algorithm, $encoding, $criteria));
-
- if ($code != self::ERROR_OK) {
- $response = null;
- }
-
- return new rcube_result_thread($mailbox, $response);
- }
-
- /**
- * Executes SEARCH command
- *
- * @param string $mailbox Mailbox name
- * @param string $criteria Searching criteria
- * @param bool $return_uid Enable UID in result instead of sequence ID
- * @param array $items Return items (MIN, MAX, COUNT, ALL)
- *
- * @return rcube_result_index Result data
- */
- function search($mailbox, $criteria, $return_uid=false, $items=array())
- {
- $old_sel = $this->selected;
-
- if (!$this->select($mailbox)) {
- return new rcube_result_index($mailbox);
- }
-
- // return empty result when folder is empty and we're just after SELECT
- if ($old_sel != $mailbox && !$this->data['EXISTS']) {
- return new rcube_result_index($mailbox, '* SEARCH');
- }
-
- // If ESEARCH is supported always use ALL
- // but not when items are specified or using simple id2uid search
- if (empty($items) && preg_match('/[^0-9]/', $criteria)) {
- $items = array('ALL');
- }
-
- $esearch = empty($items) ? false : $this->getCapability('ESEARCH');
- $criteria = trim($criteria);
- $params = '';
-
- // RFC4731: ESEARCH
- if (!empty($items) && $esearch) {
- $params .= 'RETURN (' . implode(' ', $items) . ')';
- }
-
- if (!empty($criteria)) {
- $modseq = stripos($criteria, 'MODSEQ') !== false;
- $params .= ($params ? ' ' : '') . $criteria;
- }
- else {
- $params .= 'ALL';
- }
-
- list($code, $response) = $this->execute($return_uid ? 'UID SEARCH' : 'SEARCH',
- array($params));
-
- if ($code != self::ERROR_OK) {
- $response = null;
- }
-
- return new rcube_result_index($mailbox, $response);
- }
-
- /**
- * Simulates SORT command by using FETCH and sorting.
- *
- * @param string $mailbox Mailbox name
- * @param string|array $message_set Searching criteria (list of messages to return)
- * @param string $index_field Field to sort by (ARRIVAL, CC, DATE, FROM, SIZE, SUBJECT, TO)
- * @param bool $skip_deleted Makes that DELETED messages will be skipped
- * @param bool $uidfetch Enables UID FETCH usage
- * @param bool $return_uid Enables returning UIDs instead of IDs
- *
- * @return rcube_result_index Response data
- */
- function index($mailbox, $message_set, $index_field='', $skip_deleted=true,
- $uidfetch=false, $return_uid=false)
- {
- $msg_index = $this->fetchHeaderIndex($mailbox, $message_set,
- $index_field, $skip_deleted, $uidfetch, $return_uid);
-
- if (!empty($msg_index)) {
- asort($msg_index); // ASC
- $msg_index = array_keys($msg_index);
- $msg_index = '* SEARCH ' . implode(' ', $msg_index);
- }
- else {
- $msg_index = is_array($msg_index) ? '* SEARCH' : null;
- }
-
- return new rcube_result_index($mailbox, $msg_index);
- }
-
- function fetchHeaderIndex($mailbox, $message_set, $index_field='', $skip_deleted=true,
- $uidfetch=false, $return_uid=false)
- {
- if (is_array($message_set)) {
- if (!($message_set = $this->compressMessageSet($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 = $this->nextTag();
- $cmd = $uidfetch ? 'UID FETCH' : 'FETCH';
- $fields = array();
-
- if ($return_uid)
- $fields[] = 'UID';
- if ($skip_deleted)
- $fields[] = 'FLAGS';
-
- if ($mode == 1) {
- if ($index_field == 'DATE')
- $fields[] = 'INTERNALDATE';
- $fields[] = "BODY.PEEK[HEADER.FIELDS ($index_field)]";
- }
- else if ($mode == 2) {
- if ($index_field == 'SIZE')
- $fields[] = 'RFC822.SIZE';
- else if (!$return_uid || $index_field != 'UID')
- $fields[] = $index_field;
- }
- else if ($mode == 3 && !$skip_deleted)
- $fields[] = 'FLAGS';
- else if ($mode == 4)
- $fields[] = 'INTERNALDATE';
-
- $request = "$key $cmd $message_set (" . implode(' ', $fields) . ")";
-
- if (!$this->putLine($request)) {
- $this->setError(self::ERROR_COMMAND, "Unable to send command: $request");
- return false;
- }
-
- $result = array();
-
- do {
- $line = rtrim($this->readLine(200));
- $line = $this->multLine($line);
-
- if (preg_match('/^\* ([0-9]+) FETCH/', $line, $m)) {
- $id = $m[1];
- $flags = NULL;
-
- if ($return_uid) {
- if (preg_match('/UID ([0-9]+)/', $line, $matches))
- $id = (int) $matches[1];
- else
- continue;
- }
- if ($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;
- }
-
- /**
- * Returns message sequence identifier
- *
- * @param string $mailbox Mailbox name
- * @param int $uid Message unique identifier (UID)
- *
- * @return int Message sequence identifier
- */
- function UID2ID($mailbox, $uid)
- {
- if ($uid > 0) {
- $index = $this->search($mailbox, "UID $uid");
-
- if ($index->count() == 1) {
- $arr = $index->get();
- return (int) $arr[0];
- }
- }
- return null;
- }
-
- /**
- * Returns message unique identifier (UID)
- *
- * @param string $mailbox Mailbox name
- * @param int $uid Message sequence identifier
- *
- * @return int Message unique identifier
- */
- function ID2UID($mailbox, $id)
- {
- if (empty($id) || $id < 0) {
- return null;
- }
-
- if (!$this->select($mailbox)) {
- return null;
- }
-
- $index = $this->search($mailbox, $id, true);
-
- if ($index->count() == 1) {
- $arr = $index->get();
- return (int) $arr[0];
- }
-
- return null;
- }
-
- /**
- * Sets flag of the message(s)
- *
- * @param string $mailbox Mailbox name
- * @param string|array $messages Message UID(s)
- * @param string $flag Flag name
- *
- * @return bool True on success, False on failure
- */
- function flag($mailbox, $messages, $flag) {
- return $this->modFlag($mailbox, $messages, $flag, '+');
- }
-
- /**
- * Unsets flag of the message(s)
- *
- * @param string $mailbox Mailbox name
- * @param string|array $messages Message UID(s)
- * @param string $flag Flag name
- *
- * @return bool True on success, False on failure
- */
- function unflag($mailbox, $messages, $flag) {
- return $this->modFlag($mailbox, $messages, $flag, '-');
- }
-
- /**
- * Changes flag of the message(s)
- *
- * @param string $mailbox Mailbox name
- * @param string|array $messages Message UID(s)
- * @param string $flag Flag name
- * @param string $mod Modifier [+|-]. Default: "+".
- *
- * @return bool True on success, False on failure
- */
- private function modFlag($mailbox, $messages, $flag, $mod = '+')
- {
- if ($mod != '+' && $mod != '-') {
- $mod = '+';
- }
-
- if (!$this->select($mailbox)) {
- return false;
- }
-
- if (!$this->data['READ-WRITE']) {
- $this->setError(self::ERROR_READONLY, "Mailbox is read-only", 'STORE');
- return false;
- }
-
- // Clear internal status cache
- if ($flag == 'SEEN') {
- unset($this->data['STATUS:'.$mailbox]['UNSEEN']);
- }
-
- $flag = $this->flags[strtoupper($flag)];
- $result = $this->execute('UID STORE', array(
- $this->compressMessageSet($messages), $mod . 'FLAGS.SILENT', "($flag)"),
- self::COMMAND_NORESPONSE);
-
- return ($result == self::ERROR_OK);
- }
-
- /**
- * Copies message(s) from one folder to another
- *
- * @param string|array $messages Message UID(s)
- * @param string $from Mailbox name
- * @param string $to Destination mailbox name
- *
- * @return bool True on success, False on failure
- */
- function copy($messages, $from, $to)
- {
- // Clear last COPYUID data
- unset($this->data['COPYUID']);
-
- if (!$this->select($from)) {
- return false;
- }
-
- // Clear internal status cache
- unset($this->data['STATUS:'.$to]);
-
- $result = $this->execute('UID COPY', array(
- $this->compressMessageSet($messages), $this->escape($to)),
- self::COMMAND_NORESPONSE);
-
- return ($result == self::ERROR_OK);
- }
-
- /**
- * Moves message(s) from one folder to another.
- * Original message(s) will be marked as deleted.
- *
- * @param string|array $messages Message UID(s)
- * @param string $from Mailbox name
- * @param string $to Destination mailbox name
- *
- * @return bool True on success, False on failure
- */
- function move($messages, $from, $to)
- {
- if (!$this->select($from)) {
- return false;
- }
-
- if (!$this->data['READ-WRITE']) {
- $this->setError(self::ERROR_READONLY, "Mailbox is read-only", 'STORE');
- return false;
- }
-
- $r = $this->copy($messages, $from, $to);
-
- if ($r) {
- // Clear internal status cache
- unset($this->data['STATUS:'.$from]);
-
- return $this->flag($from, $messages, 'DELETED');
- }
- return $r;
- }
-
- /**
- * FETCH command (RFC3501)
- *
- * @param string $mailbox Mailbox name
- * @param mixed $message_set Message(s) sequence identifier(s) or UID(s)
- * @param bool $is_uid True if $message_set contains UIDs
- * @param array $query_items FETCH command data items
- * @param string $mod_seq Modification sequence for CHANGEDSINCE (RFC4551) query
- * @param bool $vanished Enables VANISHED parameter (RFC5162) for CHANGEDSINCE query
- *
- * @return array List of rcube_message_header elements, False on error
- * @since 0.6
- */
- function fetch($mailbox, $message_set, $is_uid = false, $query_items = array(),
- $mod_seq = null, $vanished = false)
- {
- if (!$this->select($mailbox)) {
- return false;
- }
-
- $message_set = $this->compressMessageSet($message_set);
- $result = array();
-
- $key = $this->nextTag();
- $request = $key . ($is_uid ? ' UID' : '') . " FETCH $message_set ";
- $request .= "(" . implode(' ', $query_items) . ")";
-
- if ($mod_seq !== null && $this->hasCapability('CONDSTORE')) {
- $request .= " (CHANGEDSINCE $mod_seq" . ($vanished ? " VANISHED" : '') .")";
- }
-
- if (!$this->putLine($request)) {
- $this->setError(self::ERROR_COMMAND, "Unable to send command: $request");
- return false;
- }
-
- do {
- $line = $this->readLine(4096);
-
- if (!$line)
- break;
-
- // 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/', $line, $m)) {
- $id = intval($m[1]);
-
- $result[$id] = new rcube_message_header;
- $result[$id]->id = $id;
- $result[$id]->subject = '';
- $result[$id]->messageID = 'mid:' . $id;
-
- $headers = null;
- $lines = array();
- $line = substr($line, strlen($m[0]) + 2);
- $ln = 0;
-
- // get complete entry
- while (preg_match('/\{([0-9]+)\}\r\n$/', $line, $m)) {
- $bytes = $m[1];
- $out = '';
-
- while (strlen($out) < $bytes) {
- $out = $this->readBytes($bytes);
- if ($out === NULL)
- break;
- $line .= $out;
- }
-
- $str = $this->readLine(4096);
- if ($str === false)
- break;
-
- $line .= $str;
- }
-
- // Tokenize response and assign to object properties
- while (list($name, $value) = $this->tokenizeResponse($line, 2)) {
- if ($name == 'UID') {
- $result[$id]->uid = intval($value);
- }
- else if ($name == 'RFC822.SIZE') {
- $result[$id]->size = intval($value);
- }
- else if ($name == 'RFC822.TEXT') {
- $result[$id]->body = $value;
- }
- else if ($name == 'INTERNALDATE') {
- $result[$id]->internaldate = $value;
- $result[$id]->date = $value;
- $result[$id]->timestamp = $this->StrToTime($value);
- }
- else if ($name == 'FLAGS') {
- if (!empty($value)) {
- foreach ((array)$value as $flag) {
- $flag = str_replace(array('$', '\\'), '', $flag);
- $flag = strtoupper($flag);
-
- $result[$id]->flags[$flag] = true;
- }
- }
- }
- else if ($name == 'MODSEQ') {
- $result[$id]->modseq = $value[0];
- }
- else if ($name == 'ENVELOPE') {
- $result[$id]->envelope = $value;
- }
- else if ($name == 'BODYSTRUCTURE' || ($name == 'BODY' && count($value) > 2)) {
- if (!is_array($value[0]) && (strtolower($value[0]) == 'message' && strtolower($value[1]) == 'rfc822')) {
- $value = array($value);
- }
- $result[$id]->bodystructure = $value;
- }
- else if ($name == 'RFC822') {
- $result[$id]->body = $value;
- }
- else if ($name == 'BODY') {
- $body = $this->tokenizeResponse($line, 1);
- if ($value[0] == 'HEADER.FIELDS')
- $headers = $body;
- else if (!empty($value))
- $result[$id]->bodypart[$value[0]] = $body;
- else
- $result[$id]->body = $body;
- }
- }
-
- // create array with header field:data
- if (!empty($headers)) {
- $headers = explode("\n", trim($headers));
- foreach ($headers as $hid => $resln) {
- if (ord($resln[0]) <= 32) {
- $lines[$ln] .= (empty($lines[$ln]) ? '' : "\n") . trim($resln);
- } else {
- $lines[++$ln] = trim($resln);
- }
- }
-
- while (list($lines_key, $str) = each($lines)) {
- list($field, $string) = explode(':', $str, 2);
-
- $field = strtolower($field);
- $string = preg_replace('/\n[\t\s]*/', ' ', trim($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 = strtolower(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 = str_replace(array("\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;
- }
- }
- }
- }
-
- // VANISHED response (QRESYNC RFC5162)
- // Sample: * VANISHED (EARLIER) 300:310,405,411
-
- else if (preg_match('/^\* VANISHED [()EARLIER]*/i', $line, $match)) {
- $line = substr($line, strlen($match[0]));
- $v_data = $this->tokenizeResponse($line, 1);
-
- $this->data['VANISHED'] = $v_data;
- }
-
- } while (!$this->startsWith($line, $key, true));
-
- return $result;
- }
-
- function fetchHeaders($mailbox, $message_set, $is_uid = false, $bodystr = false, $add = '')
- {
- $query_items = array('UID', 'RFC822.SIZE', 'FLAGS', 'INTERNALDATE');
- if ($bodystr)
- $query_items[] = 'BODYSTRUCTURE';
- $query_items[] = 'BODY.PEEK[HEADER.FIELDS ('
- . 'DATE FROM TO SUBJECT CONTENT-TYPE CC REPLY-TO LIST-POST DISPOSITION-NOTIFICATION-TO X-PRIORITY'
- . ($add ? ' ' . trim($add) : '')
- . ')]';
-
- $result = $this->fetch($mailbox, $message_set, $is_uid, $query_items);
-
- 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);
- }
-
- $c = count($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 = str_replace('"', '', $data);
- if ($field == 'subject') {
- $data = preg_replace('/^(Re: \s*|Fwd:\s*|Fw:\s*)+/i', '', $data);
- }
- $data = strtoupper($data);
- }
- }
- $index[$key] = $data;
- }
-
- // sort index
- if ($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];
- }
- }
-
- return $result;
- }
-
- function fetchMIMEHeaders($mailbox, $uid, $parts, $mime=true)
- {
- if (!$this->select($mailbox)) {
- return false;
- }
-
- $result = false;
- $parts = (array) $parts;
- $key = $this->nextTag();
- $peeks = array();
- $type = $mime ? 'MIME' : 'HEADER';
-
- // format request
- foreach ($parts as $part) {
- $peeks[] = "BODY.PEEK[$part.$type]";
- }
-
- $request = "$key UID FETCH $uid (" . implode(' ', $peeks) . ')';
-
- // send request
- if (!$this->putLine($request)) {
- $this->setError(self::ERROR_COMMAND, "Unable to send command: $request");
- return false;
- }
-
- do {
- $line = $this->readLine(1024);
-
- if (preg_match('/^\* [0-9]+ FETCH [0-9UID( ]+BODY\[([0-9\.]+)\.'.$type.'\]/', $line, $matches)) {
- $idx = $matches[1];
- $headers = '';
-
- // get complete entry
- if (preg_match('/\{([0-9]+)\}\r\n$/', $line, $m)) {
- $bytes = $m[1];
- $out = '';
-
- while (strlen($out) < $bytes) {
- $out = $this->readBytes($bytes);
- if ($out === null)
- break;
- $headers .= $out;
- }
- }
-
- $result[$idx] = trim($headers);
- }
- } while (!$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, $formatted=false)
- {
- if (!$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;
- }
-
- // Use BINARY extension when possible (and safe)
- $binary = $mode && preg_match('/^[0-9.]+$/', $part) && $this->hasCapability('BINARY');
- $fetch_mode = $binary ? 'BINARY' : 'BODY';
-
- // format request
- $key = $this->nextTag();
- $request = $key . ($is_uid ? ' UID' : '') . " FETCH $id ($fetch_mode.PEEK[$part])";
-
- // send request
- if (!$this->putLine($request)) {
- $this->setError(self::ERROR_COMMAND, "Unable to send command: $request");
- return false;
- }
-
- if ($binary) {
- // WARNING: Use $formatting argument with care, this may break binary data stream
- $mode = -1;
- }
-
- // receive reply line
- do {
- $line = rtrim($this->readLine(1024));
- $a = explode(' ', $line);
- } while (!($end = $this->startsWith($line, $key, true)) && $a[2] != 'FETCH');
-
- $len = strlen($line);
- $result = false;
-
- if ($a[2] != 'FETCH') {
- }
- // handle empty "* X FETCH ()" response
- else 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 = $this->readLine(8192);
-
- if ($line === NULL) {
- break;
- }
-
- $len = strlen($line);
-
- if ($len > $bytes) {
- $line = substr($line, 0, $bytes);
- $len = strlen($line);
- }
- $bytes -= $len;
-
- // BASE64
- if ($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 = '';
- $line = base64_decode($line);
- // QUOTED-PRINTABLE
- } else if ($mode == 2) {
- $line = rtrim($line, "\t\r\0\x0B");
- $line = quoted_printable_decode($line);
- // UUENCODE
- } else if ($mode == 3) {
- $line = rtrim($line, "\t\r\n\0\x0B");
- if ($line == 'end' || preg_match('/^begin\s+[0-7]+\s+.+$/', $line))
- continue;
- $line = convert_uudecode($line);
- // default
- } else if ($formatted) {
- $line = rtrim($line, "\t\r\n\0\x0B") . "\n";
- }
-
- if ($file)
- fwrite($file, $line);
- else if ($print)
- echo $line;
- else
- $result .= $line;
- }
- }
-
- // read in anything up until last line
- if (!$end)
- do {
- $line = $this->readLine(1024);
- } while (!$this->startsWith($line, $key, true));
-
- if ($result !== false) {
- if ($file) {
- fwrite($file, $result);
- } else if ($print) {
- echo $result;
- } else
- return $result;
- return true;
- }
-
- return false;
- }
-
- /**
- * Handler for IMAP APPEND command
- *
- * @param string $mailbox Mailbox name
- * @param string $message Message content
- * @param array $flags Message flags
- * @param string $date Message internal date
- *
- * @return string|bool On success APPENDUID response (if available) or True, False on failure
- */
- function append($mailbox, &$message, $flags = array(), $date = null)
- {
- unset($this->data['APPENDUID']);
-
- if ($mailbox === null || $mailbox === '') {
- return false;
- }
-
- $message = str_replace("\r", '', $message);
- $message = str_replace("\n", "\r\n", $message);
-
- $len = strlen($message);
- if (!$len) {
- return false;
- }
-
- // build APPEND command
- $key = $this->nextTag();
- $request = "$key APPEND " . $this->escape($mailbox) . ' (' . $this->flagsToStr($flags) . ')';
- if (!empty($date)) {
- $request .= ' ' . $this->escape($date);
- }
- $request .= ' {' . $len . ($this->prefs['literal+'] ? '+' : '') . '}';
-
- // send APPEND command
- if ($this->putLine($request)) {
- // Do not wait when LITERAL+ is supported
- if (!$this->prefs['literal+']) {
- $line = $this->readReply();
-
- if ($line[0] != '+') {
- $this->parseResult($line, 'APPEND: ');
- return false;
- }
- }
-
- if (!$this->putLine($message)) {
- return false;
- }
-
- do {
- $line = $this->readLine();
- } while (!$this->startsWith($line, $key, true, true));
-
- // Clear internal status cache
- unset($this->data['STATUS:'.$mailbox]);
-
- if ($this->parseResult($line, 'APPEND: ') != self::ERROR_OK)
- return false;
- else if (!empty($this->data['APPENDUID']))
- return $this->data['APPENDUID'];
- else
- return true;
- }
- else {
- $this->setError(self::ERROR_COMMAND, "Unable to send command: $request");
- }
-
- return false;
- }
-
- /**
- * Handler for IMAP APPEND command.
- *
- * @param string $mailbox Mailbox name
- * @param string $path Path to the file with message body
- * @param string $headers Message headers
- * @param array $flags Message flags
- * @param string $date Message internal date
- *
- * @return string|bool On success APPENDUID response (if available) or True, False on failure
- */
- function appendFromFile($mailbox, $path, $headers=null, $flags = array(), $date = null)
- {
- unset($this->data['APPENDUID']);
-
- if ($mailbox === null || $mailbox === '') {
- return false;
- }
-
- // open message file
- $in_fp = false;
- if (file_exists(realpath($path))) {
- $in_fp = fopen($path, 'r');
- }
-
- if (!$in_fp) {
- $this->setError(self::ERROR_UNKNOWN, "Couldn't open $path for reading");
- return false;
- }
-
- $body_separator = "\r\n\r\n";
- $len = filesize($path);
-
- if (!$len) {
- return false;
- }
-
- if ($headers) {
- $headers = preg_replace('/[\r\n]+$/', '', $headers);
- $len += strlen($headers) + strlen($body_separator);
- }
-
- // build APPEND command
- $key = $this->nextTag();
- $request = "$key APPEND " . $this->escape($mailbox) . ' (' . $this->flagsToStr($flags) . ')';
- if (!empty($date)) {
- $request .= ' ' . $this->escape($date);
- }
- $request .= ' {' . $len . ($this->prefs['literal+'] ? '+' : '') . '}';
-
- // send APPEND command
- if ($this->putLine($request)) {
- // Don't wait when LITERAL+ is supported
- if (!$this->prefs['literal+']) {
- $line = $this->readReply();
-
- if ($line[0] != '+') {
- $this->parseResult($line, 'APPEND: ');
- return false;
- }
- }
-
- // send headers with body separator
- if ($headers) {
- $this->putLine($headers . $body_separator, false);
- }
-
- // send file
- while (!feof($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, $key, true, true));
-
- // Clear internal status cache
- unset($this->data['STATUS:'.$mailbox]);
-
- if ($this->parseResult($line, 'APPEND: ') != self::ERROR_OK)
- return false;
- else if (!empty($this->data['APPENDUID']))
- return $this->data['APPENDUID'];
- else
- return true;
- }
- else {
- $this->setError(self::ERROR_COMMAND, "Unable to send command: $request");
- }
-
- return false;
- }
-
- /**
- * Returns QUOTA information
- *
- * @return array Quota information
- */
- function getQuota()
- {
- /*
- * GETQUOTAROOT "INBOX"
- * QUOTAROOT INBOX user/rchijiiwa1
- * QUOTA user/rchijiiwa1 (STORAGE 654 9765)
- * OK Completed
- */
- $result = false;
- $quota_lines = array();
- $key = $this->nextTag();
- $command = $key . ' GETQUOTAROOT INBOX';
-
- // get line(s) containing quota info
- if ($this->putLine($command)) {
- do {
- $line = rtrim($this->readLine(5000));
- if (preg_match('/^\* QUOTA /', $line)) {
- $quota_lines[] = $line;
- }
- } while (!$this->startsWith($line, $key, true, true));
- }
- else {
- $this->setError(self::ERROR_COMMAND, "Unable to send command: $command");
- }
-
- // return false if not found, parse if found
- $min_free = PHP_INT_MAX;
- foreach ($quota_lines as $key => $quota_line) {
- $quota_line = str_replace(array('(', ')'), '', $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;
- }
-
- /**
- * Send the SETACL command (RFC4314)
- *
- * @param string $mailbox Mailbox name
- * @param string $user User name
- * @param mixed $acl ACL string or array
- *
- * @return boolean True on success, False on failure
- *
- * @since 0.5-beta
- */
- function setACL($mailbox, $user, $acl)
- {
- if (is_array($acl)) {
- $acl = implode('', $acl);
- }
-
- $result = $this->execute('SETACL', array(
- $this->escape($mailbox), $this->escape($user), strtolower($acl)),
- self::COMMAND_NORESPONSE);
-
- return ($result == self::ERROR_OK);
- }
-
- /**
- * Send the DELETEACL command (RFC4314)
- *
- * @param string $mailbox Mailbox name
- * @param string $user User name
- *
- * @return boolean True on success, False on failure
- *
- * @since 0.5-beta
- */
- function deleteACL($mailbox, $user)
- {
- $result = $this->execute('DELETEACL', array(
- $this->escape($mailbox), $this->escape($user)),
- self::COMMAND_NORESPONSE);
-
- return ($result == self::ERROR_OK);
- }
-
- /**
- * Send the GETACL command (RFC4314)
- *
- * @param string $mailbox Mailbox name
- *
- * @return array User-rights array on success, NULL on error
- * @since 0.5-beta
- */
- function getACL($mailbox)
- {
- list($code, $response) = $this->execute('GETACL', array($this->escape($mailbox)));
-
- if ($code == self::ERROR_OK && preg_match('/^\* ACL /i', $response)) {
- // Parse server response (remove "* ACL ")
- $response = substr($response, 6);
- $ret = $this->tokenizeResponse($response);
- $mbox = array_shift($ret);
- $size = count($ret);
-
- // Create user-rights hash array
- // @TODO: consider implementing fixACL() method according to RFC4314.2.1.1
- // so we could return only standard rights defined in RFC4314,
- // excluding 'c' and 'd' defined in RFC2086.
- if ($size % 2 == 0) {
- for ($i=0; $i<$size; $i++) {
- $ret[$ret[$i]] = str_split($ret[++$i]);
- unset($ret[$i-1]);
- unset($ret[$i]);
- }
- return $ret;
- }
-
- $this->setError(self::ERROR_COMMAND, "Incomplete ACL response");
- return NULL;
- }
-
- return NULL;
- }
-
- /**
- * Send the LISTRIGHTS command (RFC4314)
- *
- * @param string $mailbox Mailbox name
- * @param string $user User name
- *
- * @return array List of user rights
- * @since 0.5-beta
- */
- function listRights($mailbox, $user)
- {
- list($code, $response) = $this->execute('LISTRIGHTS', array(
- $this->escape($mailbox), $this->escape($user)));
-
- if ($code == self::ERROR_OK && preg_match('/^\* LISTRIGHTS /i', $response)) {
- // Parse server response (remove "* LISTRIGHTS ")
- $response = substr($response, 13);
-
- $ret_mbox = $this->tokenizeResponse($response, 1);
- $ret_user = $this->tokenizeResponse($response, 1);
- $granted = $this->tokenizeResponse($response, 1);
- $optional = trim($response);
-
- return array(
- 'granted' => str_split($granted),
- 'optional' => explode(' ', $optional),
- );
- }
-
- return NULL;
- }
-
- /**
- * Send the MYRIGHTS command (RFC4314)
- *
- * @param string $mailbox Mailbox name
- *
- * @return array MYRIGHTS response on success, NULL on error
- * @since 0.5-beta
- */
- function myRights($mailbox)
- {
- list($code, $response) = $this->execute('MYRIGHTS', array($this->escape($mailbox)));
-
- if ($code == self::ERROR_OK && preg_match('/^\* MYRIGHTS /i', $response)) {
- // Parse server response (remove "* MYRIGHTS ")
- $response = substr($response, 11);
-
- $ret_mbox = $this->tokenizeResponse($response, 1);
- $rights = $this->tokenizeResponse($response, 1);
-
- return str_split($rights);
- }
-
- return NULL;
- }
-
- /**
- * Send the SETMETADATA command (RFC5464)
- *
- * @param string $mailbox Mailbox name
- * @param array $entries Entry-value array (use NULL value as NIL)
- *
- * @return boolean True on success, False on failure
- * @since 0.5-beta
- */
- function setMetadata($mailbox, $entries)
- {
- if (!is_array($entries) || empty($entries)) {
- $this->setError(self::ERROR_COMMAND, "Wrong argument for SETMETADATA command");
- return false;
- }
-
- foreach ($entries as $name => $value) {
- $entries[$name] = $this->escape($name) . ' ' . $this->escape($value);
- }
-
- $entries = implode(' ', $entries);
- $result = $this->execute('SETMETADATA', array(
- $this->escape($mailbox), '(' . $entries . ')'),
- self::COMMAND_NORESPONSE);
-
- return ($result == self::ERROR_OK);
- }
-
- /**
- * Send the SETMETADATA command with NIL values (RFC5464)
- *
- * @param string $mailbox Mailbox name
- * @param array $entries Entry names array
- *
- * @return boolean True on success, False on failure
- *
- * @since 0.5-beta
- */
- function deleteMetadata($mailbox, $entries)
- {
- if (!is_array($entries) && !empty($entries)) {
- $entries = explode(' ', $entries);
- }
-
- if (empty($entries)) {
- $this->setError(self::ERROR_COMMAND, "Wrong argument for SETMETADATA command");
- return false;
- }
-
- foreach ($entries as $entry) {
- $data[$entry] = NULL;
- }
-
- return $this->setMetadata($mailbox, $data);
- }
-
- /**
- * Send the GETMETADATA command (RFC5464)
- *
- * @param string $mailbox Mailbox name
- * @param array $entries Entries
- * @param array $options Command options (with MAXSIZE and DEPTH keys)
- *
- * @return array GETMETADATA result on success, NULL on error
- *
- * @since 0.5-beta
- */
- function getMetadata($mailbox, $entries, $options=array())
- {
- if (!is_array($entries)) {
- $entries = array($entries);
- }
-
- // create entries string
- foreach ($entries as $idx => $name) {
- $entries[$idx] = $this->escape($name);
- }
-
- $optlist = '';
- $entlist = '(' . implode(' ', $entries) . ')';
-
- // create options string
- if (is_array($options)) {
- $options = array_change_key_case($options, CASE_UPPER);
- $opts = array();
-
- if (!empty($options['MAXSIZE'])) {
- $opts[] = 'MAXSIZE '.intval($options['MAXSIZE']);
- }
- if (!empty($options['DEPTH'])) {
- $opts[] = 'DEPTH '.intval($options['DEPTH']);
- }
-
- if ($opts) {
- $optlist = '(' . implode(' ', $opts) . ')';
- }
- }
-
- $optlist .= ($optlist ? ' ' : '') . $entlist;
-
- list($code, $response) = $this->execute('GETMETADATA', array(
- $this->escape($mailbox), $optlist));
-
- if ($code == self::ERROR_OK) {
- $result = array();
- $data = $this->tokenizeResponse($response);
-
- // The METADATA response can contain multiple entries in a single
- // response or multiple responses for each entry or group of entries
- if (!empty($data) && ($size = count($data))) {
- for ($i=0; $i<$size; $i++) {
- if (isset($mbox) && is_array($data[$i])) {
- $size_sub = count($data[$i]);
- for ($x=0; $x<$size_sub; $x++) {
- $result[$mbox][$data[$i][$x]] = $data[$i][++$x];
- }
- unset($data[$i]);
- }
- else if ($data[$i] == '*') {
- if ($data[$i+1] == 'METADATA') {
- $mbox = $data[$i+2];
- unset($data[$i]); // "*"
- unset($data[++$i]); // "METADATA"
- unset($data[++$i]); // Mailbox
- }
- // get rid of other untagged responses
- else {
- unset($mbox);
- unset($data[$i]);
- }
- }
- else if (isset($mbox)) {
- $result[$mbox][$data[$i]] = $data[++$i];
- unset($data[$i]);
- unset($data[$i-1]);
- }
- else {
- unset($data[$i]);
- }
- }
- }
-
- return $result;
- }
-
- return NULL;
- }
-
- /**
- * Send the SETANNOTATION command (draft-daboo-imap-annotatemore)
- *
- * @param string $mailbox Mailbox name
- * @param array $data Data array where each item is an array with
- * three elements: entry name, attribute name, value
- *
- * @return boolean True on success, False on failure
- * @since 0.5-beta
- */
- function setAnnotation($mailbox, $data)
- {
- if (!is_array($data) || empty($data)) {
- $this->setError(self::ERROR_COMMAND, "Wrong argument for SETANNOTATION command");
- return false;
- }
-
- foreach ($data as $entry) {
- // ANNOTATEMORE drafts before version 08 require quoted parameters
- $entries[] = sprintf('%s (%s %s)', $this->escape($entry[0], true),
- $this->escape($entry[1], true), $this->escape($entry[2], true));
- }
-
- $entries = implode(' ', $entries);
- $result = $this->execute('SETANNOTATION', array(
- $this->escape($mailbox), $entries), self::COMMAND_NORESPONSE);
-
- return ($result == self::ERROR_OK);
- }
-
- /**
- * Send the SETANNOTATION command with NIL values (draft-daboo-imap-annotatemore)
- *
- * @param string $mailbox Mailbox name
- * @param array $data Data array where each item is an array with
- * two elements: entry name and attribute name
- *
- * @return boolean True on success, False on failure
- *
- * @since 0.5-beta
- */
- function deleteAnnotation($mailbox, $data)
- {
- if (!is_array($data) || empty($data)) {
- $this->setError(self::ERROR_COMMAND, "Wrong argument for SETANNOTATION command");
- return false;
- }
-
- return $this->setAnnotation($mailbox, $data);
- }
-
- /**
- * Send the GETANNOTATION command (draft-daboo-imap-annotatemore)
- *
- * @param string $mailbox Mailbox name
- * @param array $entries Entries names
- * @param array $attribs Attribs names
- *
- * @return array Annotations result on success, NULL on error
- *
- * @since 0.5-beta
- */
- function getAnnotation($mailbox, $entries, $attribs)
- {
- if (!is_array($entries)) {
- $entries = array($entries);
- }
- // create entries string
- // ANNOTATEMORE drafts before version 08 require quoted parameters
- foreach ($entries as $idx => $name) {
- $entries[$idx] = $this->escape($name, true);
- }
- $entries = '(' . implode(' ', $entries) . ')';
-
- if (!is_array($attribs)) {
- $attribs = array($attribs);
- }
- // create entries string
- foreach ($attribs as $idx => $name) {
- $attribs[$idx] = $this->escape($name, true);
- }
- $attribs = '(' . implode(' ', $attribs) . ')';
-
- list($code, $response) = $this->execute('GETANNOTATION', array(
- $this->escape($mailbox), $entries, $attribs));
-
- if ($code == self::ERROR_OK) {
- $result = array();
- $data = $this->tokenizeResponse($response);
-
- // Here we returns only data compatible with METADATA result format
- if (!empty($data) && ($size = count($data))) {
- for ($i=0; $i<$size; $i++) {
- $entry = $data[$i];
- if (isset($mbox) && is_array($entry)) {
- $attribs = $entry;
- $entry = $last_entry;
- }
- else if ($entry == '*') {
- if ($data[$i+1] == 'ANNOTATION') {
- $mbox = $data[$i+2];
- unset($data[$i]); // "*"
- unset($data[++$i]); // "ANNOTATION"
- unset($data[++$i]); // Mailbox
- }
- // get rid of other untagged responses
- else {
- unset($mbox);
- unset($data[$i]);
- }
- continue;
- }
- else if (isset($mbox)) {
- $attribs = $data[++$i];
- }
- else {
- unset($data[$i]);
- continue;
- }
-
- if (!empty($attribs)) {
- for ($x=0, $len=count($attribs); $x<$len;) {
- $attr = $attribs[$x++];
- $value = $attribs[$x++];
- if ($attr == 'value.priv') {
- $result[$mbox]['/private' . $entry] = $value;
- }
- else if ($attr == 'value.shared') {
- $result[$mbox]['/shared' . $entry] = $value;
- }
- }
- }
- $last_entry = $entry;
- unset($data[$i]);
- }
- }
-
- return $result;
- }
-
- return NULL;
- }
-
- /**
- * Returns BODYSTRUCTURE for the specified message.
- *
- * @param string $mailbox Folder name
- * @param int $id Message sequence number or UID
- * @param bool $is_uid True if $id is an UID
- *
- * @return array/bool Body structure array or False on error.
- * @since 0.6
- */
- function getStructure($mailbox, $id, $is_uid = false)
- {
- $result = $this->fetch($mailbox, $id, $is_uid, array('BODYSTRUCTURE'));
- if (is_array($result)) {
- $result = array_shift($result);
- return $result->bodystructure;
- }
- return false;
- }
-
- /**
- * Returns data of a message part according to specified structure.
- *
- * @param array $structure Message structure (getStructure() result)
- * @param string $part Message part identifier
- *
- * @return array Part data as hash array (type, encoding, charset, size)
- */
- static function getStructurePartData($structure, $part)
- {
- $part_a = self::getStructurePartArray($structure, $part);
- $data = array();
-
- if (empty($part_a)) {
- return $data;
- }
-
- // content-type
- if (is_array($part_a[0])) {
- $data['type'] = 'multipart';
- }
- else {
- $data['type'] = strtolower($part_a[0]);
-
- // encoding
- $data['encoding'] = strtolower($part_a[5]);
-
- // charset
- if (is_array($part_a[2])) {
- while (list($key, $val) = each($part_a[2])) {
- if (strcasecmp($val, 'charset') == 0) {
- $data['charset'] = $part_a[2][$key+1];
- break;
- }
- }
- }
- }
-
- // size
- $data['size'] = intval($part_a[6]);
-
- return $data;
- }
-
- static function getStructurePartArray($a, $part)
- {
- if (!is_array($a)) {
- return false;
- }
-
- if (empty($part)) {
- return $a;
- }
-
- $ctype = is_string($a[0]) && is_string($a[1]) ? $a[0] . '/' . $a[1] : '';
-
- if (strcasecmp($ctype, 'message/rfc822') == 0) {
- $a = $a[8];
- }
-
- if (strpos($part, '.') > 0) {
- $orig_part = $part;
- $pos = strpos($part, '.');
- $rest = substr($orig_part, $pos+1);
- $part = substr($orig_part, 0, $pos);
-
- return self::getStructurePartArray($a[$part-1], $rest);
- }
- else if ($part > 0) {
- return (is_array($a[$part-1])) ? $a[$part-1] : $a;
- }
- }
-
- /**
- * Creates next command identifier (tag)
- *
- * @return string Command identifier
- * @since 0.5-beta
- */
- function nextTag()
- {
- $this->cmd_num++;
- $this->cmd_tag = sprintf('A%04d', $this->cmd_num);
-
- return $this->cmd_tag;
- }
-
- /**
- * Sends IMAP command and parses result
- *
- * @param string $command IMAP command
- * @param array $arguments Command arguments
- * @param int $options Execution options
- *
- * @return mixed Response code or list of response code and data
- * @since 0.5-beta
- */
- function execute($command, $arguments=array(), $options=0)
- {
- $tag = $this->nextTag();
- $query = $tag . ' ' . $command;
- $noresp = ($options & self::COMMAND_NORESPONSE);
- $response = $noresp ? null : '';
-
- if (!empty($arguments)) {
- foreach ($arguments as $arg) {
- $query .= ' ' . self::r_implode($arg);
- }
- }
-
- // Send command
- if (!$this->putLineC($query)) {
- $this->setError(self::ERROR_COMMAND, "Unable to send command: $query");
- return $noresp ? self::ERROR_COMMAND : array(self::ERROR_COMMAND, '');
- }
-
- // Parse response
- do {
- $line = $this->readLine(4096);
- if ($response !== null) {
- $response .= $line;
- }
- } while (!$this->startsWith($line, $tag . ' ', true, true));
-
- $code = $this->parseResult($line, $command . ': ');
-
- // Remove last line from response
- if ($response) {
- $line_len = min(strlen($response), strlen($line) + 2);
- $response = substr($response, 0, -$line_len);
- }
-
- // optional CAPABILITY response
- if (($options & self::COMMAND_CAPABILITY) && $code == self::ERROR_OK
- && preg_match('/\[CAPABILITY ([^]]+)\]/i', $line, $matches)
- ) {
- $this->parseCapability($matches[1], true);
- }
-
- // return last line only (without command tag, result and response code)
- if ($line && ($options & self::COMMAND_LASTLINE)) {
- $response = preg_replace("/^$tag (OK|NO|BAD|BYE|PREAUTH)?\s*(\[[a-z-]+\])?\s*/i", '', trim($line));
- }
-
- return $noresp ? $code : array($code, $response);
- }
-
- /**
- * Splits IMAP response into string tokens
- *
- * @param string &$str The IMAP's server response
- * @param int $num Number of tokens to return
- *
- * @return mixed Tokens array or string if $num=1
- * @since 0.5-beta
- */
- static function tokenizeResponse(&$str, $num=0)
- {
- $result = array();
-
- while (!$num || count($result) < $num) {
- // remove spaces from the beginning of the string
- $str = ltrim($str);
-
- switch ($str[0]) {
-
- // String literal
- case '{':
- if (($epos = strpos($str, "}\r\n", 1)) == false) {
- // error
- }
- if (!is_numeric(($bytes = substr($str, 1, $epos - 1)))) {
- // error
- }
- $result[] = $bytes ? substr($str, $epos + 3, $bytes) : '';
- // Advance the string
- $str = substr($str, $epos + 3 + $bytes);
- break;
-
- // Quoted string
- case '"':
- $len = strlen($str);
-
- for ($pos=1; $pos<$len; $pos++) {
- if ($str[$pos] == '"') {
- break;
- }
- if ($str[$pos] == "\\") {
- if ($str[$pos + 1] == '"' || $str[$pos + 1] == "\\") {
- $pos++;
- }
- }
- }
- if ($str[$pos] != '"') {
- // error
- }
- // we need to strip slashes for a quoted string
- $result[] = stripslashes(substr($str, 1, $pos - 1));
- $str = substr($str, $pos + 1);
- break;
-
- // Parenthesized list
- case '(':
- case '[':
- $str = substr($str, 1);
- $result[] = self::tokenizeResponse($str);
- break;
- case ')':
- case ']':
- $str = substr($str, 1);
- return $result;
- break;
-
- // String atom, number, NIL, *, %
- default:
- // empty string
- if ($str === '' || $str === null) {
- break 2;
- }
-
- // excluded chars: SP, CTL, ), [, ]
- if (preg_match('/^([^\x00-\x20\x29\x5B\x5D\x7F]+)/', $str, $m)) {
- $result[] = $m[1] == 'NIL' ? NULL : $m[1];
- $str = substr($str, strlen($m[1]));
- }
- break;
- }
- }
-
- return $num == 1 ? $result[0] : $result;
- }
-
- static function r_implode($element)
- {
- $string = '';
-
- if (is_array($element)) {
- reset($element);
- while (list($key, $value) = each($element)) {
- $string .= ' ' . self::r_implode($value);
- }
- }
- else {
- return $element;
- }
-
- return '(' . trim($string) . ')';
- }
-
- /**
- * Converts message identifiers array into sequence-set syntax
- *
- * @param array $messages Message identifiers
- * @param bool $force Forces compression of any size
- *
- * @return string Compressed sequence-set
- */
- static function compressMessageSet($messages, $force=false)
- {
- // given a comma delimited list of independent mid's,
- // compresses by grouping sequences together
-
- if (!is_array($messages)) {
- // if less than 255 bytes long, let's not bother
- if (!$force && strlen($messages)<255) {
- return $messages;
- }
-
- // see if it's already been compressed
- if (strpos($messages, ':') !== false) {
- return $messages;
- }
-
- // separate, then sort
- $messages = explode(',', $messages);
- }
-
- sort($messages);
-
- $result = array();
- $start = $prev = $messages[0];
-
- foreach ($messages 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);
- }
-
- /**
- * Converts message sequence-set into array
- *
- * @param string $messages Message identifiers
- *
- * @return array List of message identifiers
- */
- static function uncompressMessageSet($messages)
- {
- if (empty($messages)) {
- return array();
- }
-
- $result = array();
- $messages = explode(',', $messages);
-
- foreach ($messages as $idx => $part) {
- $items = explode(':', $part);
- $max = max($items[0], $items[1]);
-
- for ($x=$items[0]; $x<=$max; $x++) {
- $result[] = (int)$x;
- }
- unset($messages[$idx]);
- }
-
- 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;
- }
-
- /**
- * Converts flags array into string for inclusion in IMAP command
- *
- * @param array $flags Flags (see self::flags)
- *
- * @return string Space-separated list of flags
- */
- private function flagsToStr($flags)
- {
- foreach ((array)$flags as $idx => $flag) {
- if ($flag = $this->flags[strtoupper($flag)]) {
- $flags[$idx] = $flag;
- }
- }
-
- return implode(' ', (array)$flags);
- }
-
- /**
- * Converts datetime string into unix timestamp
- *
- * @param string $date Date string
- *
- * @return int Unix timestamp
- */
- static function strToTime($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 = intval(@strtotime($date))) <= 0) {
- $d = explode(' ', $date);
- array_pop($d);
- if (empty($d)) {
- break;
- }
- $date = implode(' ', $d);
- }
-
- return $ts < 0 ? 0 : $ts;
- }
-
- /**
- * CAPABILITY response parser
- */
- private function parseCapability($str, $trusted=false)
- {
- $str = preg_replace('/^\* CAPABILITY /i', '', $str);
-
- $this->capability = explode(' ', strtoupper($str));
-
- if (!isset($this->prefs['literal+']) && in_array('LITERAL+', $this->capability)) {
- $this->prefs['literal+'] = true;
- }
-
- if ($trusted) {
- $this->capability_readed = true;
- }
- }
-
- /**
- * Escapes a string when it contains special characters (RFC3501)
- *
- * @param string $string IMAP string
- * @param boolean $force_quotes Forces string quoting (for atoms)
- *
- * @return string String atom, quoted-string or string literal
- * @todo lists
- */
- static function escape($string, $force_quotes=false)
- {
- if ($string === null) {
- return 'NIL';
- }
-
- if ($string === '') {
- return '""';
- }
-
- // atom-string (only safe characters)
- if (!$force_quotes && !preg_match('/[\x00-\x20\x22\x25\x28-\x2A\x5B-\x5D\x7B\x7D\x80-\xFF]/', $string)) {
- return $string;
- }
-
- // quoted-string
- if (!preg_match('/[\r\n\x00\x80-\xFF]/', $string)) {
- return '"' . addcslashes($string, '\\"') . '"';
- }
-
- // literal-string
- return sprintf("{%d}\r\n%s", strlen($string), $string);
- }
-
- /**
- * Set the value of the debugging flag.
- *
- * @param boolean $debug New value for the debugging flag.
- *
- * @since 0.5-stable
- */
- function setDebug($debug, $handler = null)
- {
- $this->_debug = $debug;
- $this->_debug_handler = $handler;
- }
-
- /**
- * Write the given debug text to the current debug output handler.
- *
- * @param string $message Debug mesage text.
- *
- * @since 0.5-stable
- */
- private function debug($message)
- {
- if ($this->resourceid) {
- $message = sprintf('[%s] %s', $this->resourceid, $message);
- }
-
- if ($this->_debug_handler) {
- call_user_func_array($this->_debug_handler, array(&$this, $message));
- } else {
- echo "DEBUG: $message\n";
- }
- }
-
-}