githubFork/roundcubemail.git

alecpl

2008-10-03 f613a1e4e004dd03d7de80ea5a45bee71d3a3454

commit \| author \| age
4e17e6	1	<?php
T	2
	3	/*
	4	+-----------------------------------------------------------------------+
47124c	5	\| program/include/rcube_imap.php \|
4e17e6	6	\| \|
T	7	\| This file is part of the RoundCube Webmail client \|
47124c	8	\| Copyright (C) 2005-2008, RoundCube Dev. - Switzerland \|
30233b	9	\| Licensed under the GNU GPL \|
4e17e6	10	\| \|
T	11	\| PURPOSE: \|
	12	\| IMAP wrapper that implements the Iloha IMAP Library (IIL) \|
	13	\| See http://ilohamail.org/ for details \|
	14	\| \|
	15	+-----------------------------------------------------------------------+
	16	\| Author: Thomas Bruederli <roundcube@gmail.com> \|
	17	+-----------------------------------------------------------------------+
	18
	19	$Id$
	20
	21	*/
	22
	23
6d969b	24	/*
15a9d1	25	* Obtain classes from the Iloha IMAP library
T	26	*/
4e17e6	27	require_once('lib/imap.inc');
T	28	require_once('lib/mime.inc');
	29
	30
15a9d1	31	/**
T	32	* Interface class for accessing an IMAP server
	33	*
	34	* This is a wrapper that implements the Iloha IMAP Library (IIL)
	35	*
6d969b	36	* @package Mail
15a9d1	37	* @author Thomas Bruederli <roundcube@gmail.com>
d5342a	38	* @version 1.40
15a9d1	39	* @link http://ilohamail.org
T	40	*/
4e17e6	41	class rcube_imap
6d969b	42	{
1cded8	43	var $db;
4e17e6	44	var $conn;
520c36	45	var $root_ns = '';
4e17e6	46	var $root_dir = '';
T	47	var $mailbox = 'INBOX';
	48	var $list_page = 1;
	49	var $page_size = 10;
31b2ce	50	var $sort_field = 'date';
T	51	var $sort_order = 'DESC';
9490b7	52	var $delimiter = NULL;
6dc026	53	var $caching_enabled = FALSE;
17b5fb	54	var $default_charset = 'ISO-8859-1';
fa4cd2	55	var $default_folders = array('INBOX');
T	56	var $default_folders_lc = array('inbox');
4e17e6	57	var $cache = array();
1cded8	58	var $cache_keys = array();
326e87	59	var $cache_changes = array();
4e17e6	60	var $uid_id_map = array();
T	61	var $msg_headers = array();
15a9d1	62	var $skip_deleted = FALSE;
04c618	63	var $search_set = NULL;
T	64	var $search_subject = '';
	65	var $search_string = '';
	66	var $search_charset = '';
15a9d1	67	var $debug_level = 1;
fc6725	68	var $error_code = 0;
4e17e6	69
T	70
15a9d1	71	/**
T	72	* Object constructor
	73	*
6d969b	74	* @param object DB Database connection
15a9d1	75	*/
1cded8	76	function __construct($db_conn)
4e17e6	77	{
3f9edb	78	$this->db = $db_conn;
4e17e6	79	}
T	80
15a9d1	81
T	82	/**
	83	* Connect to an IMAP server
	84	*
	85	* @param string Host to connect
	86	* @param string Username for IMAP account
	87	* @param string Password for IMAP account
	88	* @param number Port to connect to
5bc0ab	89	* @param string SSL schema (either ssl or tls) or null if plain connection
15a9d1	90	* @return boolean TRUE on success, FALSE on failure
T	91	* @access public
	92	*/
1fb78c	93	function connect($host, $user, $pass, $port=143, $use_ssl=null, $auth_type=null)
4e17e6	94	{
4647e1	95	global $ICL_SSL, $ICL_PORT, $IMAP_USE_INTERNAL_DATE;
42b113	96
T	97	// check for Open-SSL support in PHP build
	98	if ($use_ssl && in_array('openssl', get_loaded_extensions()))
5bc0ab	99	$ICL_SSL = $use_ssl == 'imaps' ? 'ssl' : $use_ssl;
520c36	100	else if ($use_ssl)
T	101	{
15a9d1	102	raise_error(array('code' => 403, 'type' => 'imap', 'file' => __FILE__,
520c36	103	'message' => 'Open SSL not available;'), TRUE, FALSE);
T	104	$port = 143;
	105	}
4e17e6	106
T	107	$ICL_PORT = $port;
4647e1	108	$IMAP_USE_INTERNAL_DATE = false;
b026c3	109
1fb78c	110	$this->conn = iil_Connect($host, $user, $pass, array('imap' => $auth_type ? $auth_type : 'check'));
4e17e6	111	$this->host = $host;
T	112	$this->user = $user;
	113	$this->pass = $pass;
520c36	114	$this->port = $port;
T	115	$this->ssl = $use_ssl;
42b113	116
520c36	117	// print trace mesages
15a9d1	118	if ($this->conn && ($this->debug_level & 8))
520c36	119	console($this->conn->message);
T	120
	121	// write error log
42b113	122	else if (!$this->conn && $GLOBALS['iil_error'])
T	123	{
fc6725	124	$this->error_code = $GLOBALS['iil_errornum'];
42b113	125	raise_error(array('code' => 403,
T	126	'type' => 'imap',
	127	'message' => $GLOBALS['iil_error']), TRUE, FALSE);
520c36	128	}
T	129
f7bfec	130	// get server properties
520c36	131	if ($this->conn)
T	132	{
	133	if (!empty($this->conn->delimiter))
	134	$this->delimiter = $this->conn->delimiter;
	135	if (!empty($this->conn->rootdir))
7902df	136	{
T	137	$this->set_rootdir($this->conn->rootdir);
	138	$this->root_ns = ereg_replace('[\.\/]$', '', $this->conn->rootdir);
	139	}
42b113	140	}
4e17e6	141
T	142	return $this->conn ? TRUE : FALSE;
	143	}
	144
	145
15a9d1	146	/**
T	147	* Close IMAP connection
	148	* Usually done on script shutdown
	149	*
	150	* @access public
	151	*/
4e17e6	152	function close()
T	153	{
	154	if ($this->conn)
	155	iil_Close($this->conn);
	156	}
	157
	158
15a9d1	159	/**
T	160	* Close IMAP connection and re-connect
	161	* This is used to avoid some strange socket errors when talking to Courier IMAP
	162	*
	163	* @access public
	164	*/
520c36	165	function reconnect()
T	166	{
	167	$this->close();
	168	$this->connect($this->host, $this->user, $this->pass, $this->port, $this->ssl);
32efb0	169
T	170	// issue SELECT command to restore connection status
	171	if ($this->mailbox)
	172	iil_C_Select($this->conn, $this->mailbox);
520c36	173	}
T	174
	175
15a9d1	176	/**
T	177	* Set a root folder for the IMAP connection.
	178	*
	179	* Only folders within this root folder will be displayed
	180	* and all folder paths will be translated using this folder name
	181	*
	182	* @param string Root folder
	183	* @access public
	184	*/
4e17e6	185	function set_rootdir($root)
T	186	{
520c36	187	if (ereg('[\.\/]$', $root)) //(substr($root, -1, 1)==='/')
4e17e6	188	$root = substr($root, 0, -1);
T	189
	190	$this->root_dir = $root;
520c36	191
T	192	if (empty($this->delimiter))
	193	$this->get_hierarchy_delimiter();
17b5fb	194	}
T	195
	196
	197	/**
	198	* Set default message charset
	199	*
	200	* This will be used for message decoding if a charset specification is not available
	201	*
	202	* @param string Charset string
	203	* @access public
	204	*/
	205	function set_charset($cs)
	206	{
f94a80	207	$this->default_charset = $cs;
4e17e6	208	}
T	209
	210
15a9d1	211	/**
T	212	* This list of folders will be listed above all other folders
	213	*
	214	* @param array Indexed list of folder names
	215	* @access public
	216	*/
4e17e6	217	function set_default_mailboxes($arr)
T	218	{
	219	if (is_array($arr))
	220	{
fa4cd2	221	$this->default_folders = $arr;
T	222	$this->default_folders_lc = array();
	223
4e17e6	224	// add inbox if not included
fa4cd2	225	if (!in_array_nocase('INBOX', $this->default_folders))
T	226	array_unshift($this->default_folders, 'INBOX');
	227
	228	// create a second list with lower cased names
	229	foreach ($this->default_folders as $mbox)
	230	$this->default_folders_lc[] = strtolower($mbox);
4e17e6	231	}
T	232	}
	233
	234
15a9d1	235	/**
T	236	* Set internal mailbox reference.
	237	*
	238	* All operations will be perfomed on this mailbox/folder
	239	*
	240	* @param string Mailbox/Folder name
	241	* @access public
	242	*/
aadfa1	243	function set_mailbox($new_mbox)
4e17e6	244	{
aadfa1	245	$mailbox = $this->_mod_mailbox($new_mbox);
4e17e6	246
T	247	if ($this->mailbox == $mailbox)
	248	return;
	249
	250	$this->mailbox = $mailbox;
	251
	252	// clear messagecount cache for this mailbox
	253	$this->_clear_messagecount($mailbox);
	254	}
	255
	256
15a9d1	257	/**
T	258	* Set internal list page
	259	*
	260	* @param number Page number to list
	261	* @access public
	262	*/
4e17e6	263	function set_page($page)
T	264	{
	265	$this->list_page = (int)$page;
	266	}
	267
	268
15a9d1	269	/**
T	270	* Set internal page size
	271	*
	272	* @param number Number of messages to display on one page
	273	* @access public
	274	*/
4e17e6	275	function set_pagesize($size)
T	276	{
	277	$this->page_size = (int)$size;
	278	}
04c618	279
T	280
	281	/**
	282	* Save a set of message ids for future message listing methods
	283	*
	284	* @param array List of IMAP fields to search in
	285	* @param string Search string
	286	* @param array List of message ids or NULL if empty
	287	*/
	288	function set_search_set($subject, $str=null, $msgs=null, $charset=null)
	289	{
	290	if (is_array($subject) && $str == null && $msgs == null)
	291	list($subject, $str, $msgs, $charset) = $subject;
	292	if ($msgs != null && !is_array($msgs))
	293	$msgs = split(',', $msgs);
	294
	295	$this->search_subject = $subject;
	296	$this->search_string = $str;
4845a1	297	$this->search_set = (array)$msgs;
04c618	298	$this->search_charset = $charset;
T	299	}
	300
	301
	302	/**
	303	* Return the saved search set as hash array
6d969b	304	* @return array Search set
04c618	305	*/
T	306	function get_search_set()
	307	{
	308	return array($this->search_subject, $this->search_string, $this->search_set, $this->search_charset);
	309	}
4e17e6	310
T	311
15a9d1	312	/**
T	313	* Returns the currently used mailbox name
	314	*
	315	* @return string Name of the mailbox/folder
	316	* @access public
	317	*/
4e17e6	318	function get_mailbox_name()
T	319	{
	320	return $this->conn ? $this->_mod_mailbox($this->mailbox, 'out') : '';
1cded8	321	}
T	322
	323
15a9d1	324	/**
T	325	* Returns the IMAP server's capability
	326	*
	327	* @param string Capability name
	328	* @return mixed Capability value or TRUE if supported, FALSE if not
	329	* @access public
	330	*/
1cded8	331	function get_capability($cap)
T	332	{
11ef97	333	return iil_C_GetCapability($this->conn, strtoupper($cap));
4e17e6	334	}
T	335
	336
15a9d1	337	/**
5b3dd4	338	* Checks the PERMANENTFLAGS capability of the current mailbox
T	339	* and returns true if the given flag is supported by the IMAP server
	340	*
	341	* @param string Permanentflag name
	342	* @return mixed True if this flag is supported
	343	* @access public
	344	*/
	345	function check_permflag($flag)
	346	{
	347	$flagsmap = $GLOBALS['IMAP_FLAGS'];
	348	return (($imap_flag = $flagsmap[strtoupper($flag)]) && in_array_nocase($imap_flag, $this->conn->permanentflags));
	349	}
	350
	351
	352	/**
15a9d1	353	* Returns the delimiter that is used by the IMAP server for folder separation
T	354	*
	355	* @return string Delimiter string
	356	* @access public
	357	*/
597170	358	function get_hierarchy_delimiter()
T	359	{
	360	if ($this->conn && empty($this->delimiter))
	361	$this->delimiter = iil_C_GetHierarchyDelimiter($this->conn);
	362
7902df	363	if (empty($this->delimiter))
T	364	$this->delimiter = '/';
	365
597170	366	return $this->delimiter;
T	367	}
	368
15a9d1	369
T	370	/**
	371	* Public method for mailbox listing.
	372	*
	373	* Converts mailbox name with root dir first
	374	*
	375	* @param string Optional root folder
	376	* @param string Optional filter for mailbox listing
	377	* @return array List of mailboxes/folders
	378	* @access public
	379	*/
4e17e6	380	function list_mailboxes($root='', $filter='*')
T	381	{
	382	$a_out = array();
	383	$a_mboxes = $this->_list_mailboxes($root, $filter);
	384
aadfa1	385	foreach ($a_mboxes as $mbox_row)
4e17e6	386	{
aadfa1	387	$name = $this->_mod_mailbox($mbox_row, 'out');
4e17e6	388	if (strlen($name))
T	389	$a_out[] = $name;
	390	}
	391
fa4cd2	392	// INBOX should always be available
T	393	if (!in_array_nocase('INBOX', $a_out))
	394	array_unshift($a_out, 'INBOX');
	395
4e17e6	396	// sort mailboxes
T	397	$a_out = $this->_sort_mailbox_list($a_out);
	398
	399	return $a_out;
	400	}
	401
15a9d1	402
T	403	/**
	404	* Private method for mailbox listing
	405	*
	406	* @return array List of mailboxes/folders
6d969b	407	* @see rcube_imap::list_mailboxes()
15a9d1	408	* @access private
T	409	*/
4e17e6	410	function _list_mailboxes($root='', $filter='*')
T	411	{
	412	$a_defaults = $a_out = array();
	413
	414	// get cached folder list
	415	$a_mboxes = $this->get_cache('mailboxes');
	416	if (is_array($a_mboxes))
	417	return $a_mboxes;
	418
	419	// retrieve list of folders from IMAP server
	420	$a_folders = iil_C_ListSubscribed($this->conn, $this->_mod_mailbox($root), $filter);
	421
	422	if (!is_array($a_folders) \|\| !sizeof($a_folders))
	423	$a_folders = array();
	424
	425	// write mailboxlist to cache
	426	$this->update_cache('mailboxes', $a_folders);
	427
	428	return $a_folders;
	429	}
	430
	431
3f9edb	432	/**
T	433	* Get message count for a specific mailbox
	434	*
	435	* @param string Mailbox/folder name
	436	* @param string Mode for count [ALL\|UNSEEN\|RECENT]
	437	* @param boolean Force reading from server and update cache
6d969b	438	* @return int Number of messages
T	439	* @access public
3f9edb	440	*/
aadfa1	441	function messagecount($mbox_name='', $mode='ALL', $force=FALSE)
4e17e6	442	{
aadfa1	443	$mailbox = $mbox_name ? $this->_mod_mailbox($mbox_name) : $this->mailbox;
4e17e6	444	return $this->_messagecount($mailbox, $mode, $force);
T	445	}
	446
3f9edb	447
T	448	/**
	449	* Private method for getting nr of messages
	450	*
	451	* @access private
6d969b	452	* @see rcube_imap::messagecount()
3f9edb	453	*/
4e17e6	454	function _messagecount($mailbox='', $mode='ALL', $force=FALSE)
T	455	{
	456	$a_mailbox_cache = FALSE;
	457	$mode = strtoupper($mode);
	458
15a9d1	459	if (empty($mailbox))
4e17e6	460	$mailbox = $this->mailbox;
04c618	461
T	462	// count search set
110748	463	if ($this->search_string && $mailbox == $this->mailbox && $mode == 'ALL' && !$force)
4845a1	464	return count((array)$this->search_set);
4e17e6	465
T	466	$a_mailbox_cache = $this->get_cache('messagecount');
	467
	468	// return cached value
	469	if (!$force && is_array($a_mailbox_cache[$mailbox]) && isset($a_mailbox_cache[$mailbox][$mode]))
31b2ce	470	return $a_mailbox_cache[$mailbox][$mode];
4e17e6	471
197601	472	// RECENT count is fetched a bit different
15a9d1	473	if ($mode == 'RECENT')
T	474	$count = iil_C_CheckForRecent($this->conn, $mailbox);
31b2ce	475
15a9d1	476	// use SEARCH for message counting
T	477	else if ($this->skip_deleted)
31b2ce	478	{
15a9d1	479	$search_str = "ALL UNDELETED";
T	480
	481	// get message count and store in cache
	482	if ($mode == 'UNSEEN')
	483	$search_str .= " UNSEEN";
	484
	485	// get message count using SEARCH
	486	// not very performant but more precise (using UNDELETED)
	487	$count = 0;
	488	$index = $this->_search_index($mailbox, $search_str);
	489	if (is_array($index))
	490	{
	491	$str = implode(",", $index);
	492	if (!empty($str))
	493	$count = count($index);
	494	}
	495	}
	496	else
	497	{
	498	if ($mode == 'UNSEEN')
	499	$count = iil_C_CountUnseen($this->conn, $mailbox);
	500	else
	501	$count = iil_C_CountMessages($this->conn, $mailbox);
31b2ce	502	}
4e17e6	503
13c1af	504	if (!is_array($a_mailbox_cache[$mailbox]))
4e17e6	505	$a_mailbox_cache[$mailbox] = array();
T	506
	507	$a_mailbox_cache[$mailbox][$mode] = (int)$count;
31b2ce	508
4e17e6	509	// write back to cache
T	510	$this->update_cache('messagecount', $a_mailbox_cache);
	511
	512	return (int)$count;
	513	}
	514
	515
3f9edb	516	/**
T	517	* Public method for listing headers
	518	* convert mailbox name with root dir first
	519	*
	520	* @param string Mailbox/folder name
6d969b	521	* @param int Current page to list
3f9edb	522	* @param string Header field to sort by
T	523	* @param string Sort order [ASC\|DESC]
	524	* @return array Indexed array with message header objects
	525	* @access public
	526	*/
aadfa1	527	function list_headers($mbox_name='', $page=NULL, $sort_field=NULL, $sort_order=NULL)
4e17e6	528	{
aadfa1	529	$mailbox = $mbox_name ? $this->_mod_mailbox($mbox_name) : $this->mailbox;
4e17e6	530	return $this->_list_headers($mailbox, $page, $sort_field, $sort_order);
T	531	}
	532
	533
3f9edb	534	/**
4647e1	535	* Private method for listing message headers
3f9edb	536	*
T	537	* @access private
	538	* @see rcube_imap::list_headers
	539	*/
31b2ce	540	function _list_headers($mailbox='', $page=NULL, $sort_field=NULL, $sort_order=NULL, $recursive=FALSE)
4e17e6	541	{
T	542	if (!strlen($mailbox))
17fc71	543	return array();
04c618	544
T	545	// use saved message set
4845a1	546	if ($this->search_string && $mailbox == $this->mailbox)
04c618	547	return $this->_list_header_set($mailbox, $this->search_set, $page, $sort_field, $sort_order);
T	548
d5342a	549	$this->_set_sort_order($sort_field, $sort_order);
4e17e6	550
1cded8	551	$max = $this->_messagecount($mailbox);
T	552	$start_msg = ($this->list_page-1) * $this->page_size;
06ec1f	553
4647e1	554	list($begin, $end) = $this->_get_message_range($max, $page);
06ec1f	555
04c618	556	// mailbox is empty
078adf	557	if ($begin >= $end)
T	558	return array();
04c618	559
1cded8	560	$headers_sorted = FALSE;
T	561	$cache_key = $mailbox.'.msg';
	562	$cache_status = $this->check_cache_status($mailbox, $cache_key);
	563
	564	// cache is OK, we can get all messages from local cache
	565	if ($cache_status>0)
	566	{
31b2ce	567	$a_msg_headers = $this->get_message_cache($cache_key, $start_msg, $start_msg+$this->page_size, $this->sort_field, $this->sort_order);
1cded8	568	$headers_sorted = TRUE;
T	569	}
c4e7e4	570	// cache is dirty, sync it
T	571	else if ($this->caching_enabled && $cache_status==-1 && !$recursive)
	572	{
	573	$this->sync_header_index($mailbox);
	574	return $this->_list_headers($mailbox, $page, $this->sort_field, $this->sort_order, TRUE);
	575	}
1cded8	576	else
T	577	{
	578	// retrieve headers from IMAP
15a9d1	579	if ($this->get_capability('sort') && ($msg_index = iil_C_Sort($this->conn, $mailbox, $this->sort_field, $this->skip_deleted ? 'UNDELETED' : '')))
05d180	580	{
T	581	$mymsgidx = array_slice ($msg_index, $begin, $end-$begin);
257782	582	$msgs = join(",", $mymsgidx);
1cded8	583	}
T	584	else
	585	{
c4e7e4	586	$msgs = sprintf("%d:%d", $begin+1, $end);
257782	587	$msg_index = range($begin, $end);
1cded8	588	}
T	589
06ec1f	590
1cded8	591	// fetch reuested headers from server
T	592	$a_msg_headers = array();
15a9d1	593	$deleted_count = $this->_fetch_headers($mailbox, $msgs, $a_msg_headers, $cache_key);
257782	594	if ($this->sort_order == 'DESC' && $headers_sorted) {
A	595	//since the sort order is not used in the iil_c_sort function we have to do it here
	596	$a_msg_headers = array_reverse($a_msg_headers);
	597	}
f388a8	598	// delete cached messages with a higher index than $max+1
S	599	// Changed $max to $max+1 to fix this bug : #1484295
	600	$this->clear_message_cache($cache_key, $max + 1);
1cded8	601
06ec1f	602
1cded8	603	// kick child process to sync cache
31b2ce	604	// ...
06ec1f	605
1cded8	606	}
T	607
	608	// return empty array if no messages found
257782	609	if (!is_array($a_msg_headers) \|\| empty($a_msg_headers)) {
A	610	return array();
	611	}
1cded8	612
T	613	// if not already sorted
06ec1f	614	if (!$headers_sorted)
7e93ff	615	{
257782	616	// use this class for message sorting
A	617	$sorter = new rcube_header_sorter();
	618	$sorter->set_sequence_numbers($msg_index);
7e93ff	619	$sorter->sort_headers($a_msg_headers);
e6f360	620
7e93ff	621	if ($this->sort_order == 'DESC')
T	622	$a_msg_headers = array_reverse($a_msg_headers);
	623	}
1cded8	624
T	625	return array_values($a_msg_headers);
4e17e6	626	}
7e93ff	627
T	628
15a9d1	629
4647e1	630	/**
T	631	* Public method for listing a specific set of headers
	632	* convert mailbox name with root dir first
	633	*
	634	* @param string Mailbox/folder name
	635	* @param array List of message ids to list
6d969b	636	* @param int Current page to list
4647e1	637	* @param string Header field to sort by
T	638	* @param string Sort order [ASC\|DESC]
	639	* @return array Indexed array with message header objects
	640	* @access public
	641	*/
aadfa1	642	function list_header_set($mbox_name='', $msgs, $page=NULL, $sort_field=NULL, $sort_order=NULL)
4647e1	643	{
aadfa1	644	$mailbox = $mbox_name ? $this->_mod_mailbox($mbox_name) : $this->mailbox;
4647e1	645	return $this->_list_header_set($mailbox, $msgs, $page, $sort_field, $sort_order);
T	646	}
	647
	648
	649	/**
	650	* Private method for listing a set of message headers
	651	*
	652	* @access private
6d969b	653	* @see rcube_imap::list_header_set()
4647e1	654	*/
T	655	function _list_header_set($mailbox, $msgs, $page=NULL, $sort_field=NULL, $sort_order=NULL)
	656	{
	657	if (!strlen($mailbox) \|\| empty($msgs))
	658	return array();
	659
257782	660	// also accept a comma-separated list of message ids
A	661	if (is_array ($msgs)) {
	662	$max = count ($msgs);
	663	$msgs = join (',', $msgs);
	664	} else {
	665	$max = count(split(',', $msgs));
	666	}
	667
d5342a	668	$this->_set_sort_order($sort_field, $sort_order);
4647e1	669
T	670	$start_msg = ($this->list_page-1) * $this->page_size;
	671
	672	// fetch reuested headers from server
	673	$a_msg_headers = array();
c5cc38	674	$this->_fetch_headers($mailbox, $msgs, $a_msg_headers, NULL);
4647e1	675
T	676	// return empty array if no messages found
04c618	677	if (!is_array($a_msg_headers) \|\| empty($a_msg_headers))
T	678	return array();
4647e1	679
T	680	// if not already sorted
	681	$a_msg_headers = iil_SortHeaders($a_msg_headers, $this->sort_field, $this->sort_order);
	682
04c618	683	// only return the requested part of the set
T	684	return array_slice(array_values($a_msg_headers), $start_msg, min($max-$start_msg, $this->page_size));
4647e1	685	}
T	686
	687
	688	/**
	689	* Helper function to get first and last index of the requested set
	690	*
6d969b	691	* @param int message count
4647e1	692	* @param mixed page number to show, or string 'all'
T	693	* @return array array with two values: first index, last index
	694	* @access private
	695	*/
	696	function _get_message_range($max, $page)
	697	{
	698	$start_msg = ($this->list_page-1) * $this->page_size;
	699
	700	if ($page=='all')
	701	{
	702	$begin = 0;
	703	$end = $max;
	704	}
	705	else if ($this->sort_order=='DESC')
	706	{
	707	$begin = $max - $this->page_size - $start_msg;
	708	$end = $max - $start_msg;
	709	}
	710	else
	711	{
	712	$begin = $start_msg;
	713	$end = $start_msg + $this->page_size;
	714	}
	715
	716	if ($begin < 0) $begin = 0;
	717	if ($end < 0) $end = $max;
	718	if ($end > $max) $end = $max;
	719
	720	return array($begin, $end);
	721	}
	722
	723
15a9d1	724
T	725	/**
	726	* Fetches message headers
	727	* Used for loop
	728	*
	729	* @param string Mailbox name
4647e1	730	* @param string Message index to fetch
15a9d1	731	* @param array Reference to message headers array
T	732	* @param array Array with cache index
6d969b	733	* @return int Number of deleted messages
15a9d1	734	* @access private
T	735	*/
	736	function _fetch_headers($mailbox, $msgs, &$a_msg_headers, $cache_key)
	737	{
	738	// cache is incomplete
	739	$cache_index = $this->get_message_cache_index($cache_key);
4647e1	740
15a9d1	741	// fetch reuested headers from server
T	742	$a_header_index = iil_C_FetchHeaders($this->conn, $mailbox, $msgs);
	743	$deleted_count = 0;
	744
	745	if (!empty($a_header_index))
	746	{
	747	foreach ($a_header_index as $i => $headers)
	748	{
	749	if ($headers->deleted && $this->skip_deleted)
	750	{
	751	// delete from cache
	752	if ($cache_index[$headers->id] && $cache_index[$headers->id] == $headers->uid)
	753	$this->remove_message_cache($cache_key, $headers->id);
	754
	755	$deleted_count++;
	756	continue;
	757	}
	758
	759	// add message to cache
	760	if ($this->caching_enabled && $cache_index[$headers->id] != $headers->uid)
	761	$this->add_message_cache($cache_key, $headers->id, $headers);
	762
	763	$a_msg_headers[$headers->uid] = $headers;
	764	}
	765	}
	766
	767	return $deleted_count;
	768	}
	769
e6f360	770
8d4bcd	771	/**
T	772	* Return sorted array of message UIDs
	773	*
	774	* @param string Mailbox to get index from
	775	* @param string Sort column
	776	* @param string Sort order [ASC, DESC]
	777	* @return array Indexed array with message ids
	778	*/
aadfa1	779	function message_index($mbox_name='', $sort_field=NULL, $sort_order=NULL)
4e17e6	780	{
d5342a	781	$this->_set_sort_order($sort_field, $sort_order);
31b2ce	782
aadfa1	783	$mailbox = $mbox_name ? $this->_mod_mailbox($mbox_name) : $this->mailbox;
df0da2	784	$key = "{$mailbox}:{$this->sort_field}:{$this->sort_order}:{$this->search_string}.msgi";
T	785
	786	// we have a saved search result. get index from there
	787	if (!isset($this->cache[$key]) && $this->search_string && $mailbox == $this->mailbox)
	788	{
	789	$this->cache[$key] = $a_msg_headers = array();
	790	$this->_fetch_headers($mailbox, join(',', $this->search_set), $a_msg_headers, NULL);
	791
	792	foreach (iil_SortHeaders($a_msg_headers, $this->sort_field, $this->sort_order) as $i => $msg)
	793	$this->cache[$key][] = $msg->uid;
	794	}
4e17e6	795
31b2ce	796	// have stored it in RAM
T	797	if (isset($this->cache[$key]))
	798	return $this->cache[$key];
4e17e6	799
31b2ce	800	// check local cache
T	801	$cache_key = $mailbox.'.msg';
	802	$cache_status = $this->check_cache_status($mailbox, $cache_key);
4e17e6	803
31b2ce	804	// cache is OK
T	805	if ($cache_status>0)
	806	{
0677ca	807	$a_index = $this->get_message_cache_index($cache_key, TRUE, $this->sort_field, $this->sort_order);
31b2ce	808	return array_values($a_index);
T	809	}
	810
	811
	812	// fetch complete message index
	813	$msg_count = $this->_messagecount($mailbox);
e6f360	814	if ($this->get_capability('sort') && ($a_index = iil_C_Sort($this->conn, $mailbox, $this->sort_field, '', TRUE)))
31b2ce	815	{
T	816	if ($this->sort_order == 'DESC')
	817	$a_index = array_reverse($a_index);
	818
e6f360	819	$this->cache[$key] = $a_index;
T	820
31b2ce	821	}
T	822	else
	823	{
	824	$a_index = iil_C_FetchHeaderIndex($this->conn, $mailbox, "1:$msg_count", $this->sort_field);
	825	$a_uids = iil_C_FetchUIDs($this->conn, $mailbox);
	826
	827	if ($this->sort_order=="ASC")
	828	asort($a_index);
	829	else if ($this->sort_order=="DESC")
	830	arsort($a_index);
	831
	832	$i = 0;
	833	$this->cache[$key] = array();
	834	foreach ($a_index as $index => $value)
	835	$this->cache[$key][$i++] = $a_uids[$index];
	836	}
	837
	838	return $this->cache[$key];
4e17e6	839	}
T	840
	841
6d969b	842	/**
T	843	* @access private
	844	*/
1cded8	845	function sync_header_index($mailbox)
4e17e6	846	{
1cded8	847	$cache_key = $mailbox.'.msg';
T	848	$cache_index = $this->get_message_cache_index($cache_key);
	849	$msg_count = $this->_messagecount($mailbox);
	850
	851	// fetch complete message index
	852	$a_message_index = iil_C_FetchHeaderIndex($this->conn, $mailbox, "1:$msg_count", 'UID');
	853
	854	foreach ($a_message_index as $id => $uid)
	855	{
	856	// message in cache at correct position
	857	if ($cache_index[$id] == $uid)
	858	{
	859	unset($cache_index[$id]);
	860	continue;
	861	}
	862
	863	// message in cache but in wrong position
	864	if (in_array((string)$uid, $cache_index, TRUE))
	865	{
	866	unset($cache_index[$id]);
	867	}
	868
	869	// other message at this position
	870	if (isset($cache_index[$id]))
	871	{
	872	$this->remove_message_cache($cache_key, $id);
	873	unset($cache_index[$id]);
	874	}
	875
	876
	877	// fetch complete headers and add to cache
	878	$headers = iil_C_FetchHeader($this->conn, $mailbox, $id);
	879	$this->add_message_cache($cache_key, $headers->id, $headers);
	880	}
	881
	882	// those ids that are still in cache_index have been deleted
	883	if (!empty($cache_index))
	884	{
	885	foreach ($cache_index as $id => $uid)
	886	$this->remove_message_cache($cache_key, $id);
	887	}
4e17e6	888	}
T	889
	890
4647e1	891	/**
T	892	* Invoke search request to IMAP server
	893	*
	894	* @param string mailbox name to search in
	895	* @param string search criteria (ALL, TO, FROM, SUBJECT, etc)
	896	* @param string search string
	897	* @return array search results as list of message ids
	898	* @access public
	899	*/
42000a	900	function search($mbox_name='', $criteria='ALL', $str=NULL, $charset=NULL)
4e17e6	901	{
aadfa1	902	$mailbox = $mbox_name ? $this->_mod_mailbox($mbox_name) : $this->mailbox;
04c618	903
T	904	// have an array of criterias => execute multiple searches
	905	if (is_array($criteria) && $str)
	906	{
	907	$results = array();
	908	foreach ($criteria as $crit)
e6c7c3	909	if ($search_result = $this->search($mbox_name, $crit, $str, $charset))
T	910	$results = array_merge($results, $search_result);
04c618	911
T	912	$results = array_unique($results);
	913	$this->set_search_set($criteria, $str, $results, $charset);
	914	return $results;
	915	}
	916	else if ($str && $criteria)
4647e1	917	{
42000a	918	$search = (!empty($charset) ? "CHARSET $charset " : '') . sprintf("%s {%d}\r\n%s", $criteria, strlen($str), $str);
T	919	$results = $this->_search_index($mailbox, $search);
	920
4d4264	921	// try search with ISO charset (should be supported by server)
T	922	if (empty($results) && !empty($charset) && $charset!='ISO-8859-1')
	923	$results = $this->search($mbox_name, $criteria, rcube_charset_convert($str, $charset, 'ISO-8859-1'), 'ISO-8859-1');
42000a	924
04c618	925	$this->set_search_set($criteria, $str, $results, $charset);
42000a	926	return $results;
4647e1	927	}
T	928	else
	929	return $this->_search_index($mailbox, $criteria);
	930	}
	931
	932
	933	/**
	934	* Private search method
	935	*
	936	* @return array search results as list of message ids
	937	* @access private
	938	* @see rcube_imap::search()
	939	*/
31b2ce	940	function _search_index($mailbox, $criteria='ALL')
T	941	{
4e17e6	942	$a_messages = iil_C_Search($this->conn, $mailbox, $criteria);
4647e1	943	// clean message list (there might be some empty entries)
4f2d81	944	if (is_array($a_messages))
T	945	{
	946	foreach ($a_messages as $i => $val)
	947	if (empty($val))
	948	unset($a_messages[$i]);
	949	}
4647e1	950
4e17e6	951	return $a_messages;
04c618	952	}
T	953
	954
	955	/**
	956	* Refresh saved search set
6d969b	957	*
T	958	* @return array Current search set
04c618	959	*/
T	960	function refresh_search()
	961	{
	962	if (!empty($this->search_subject) && !empty($this->search_string))
	963	$this->search_set = $this->search('', $this->search_subject, $this->search_string, $this->search_charset);
	964
	965	return $this->get_search_set();
4e17e6	966	}
110748	967
T	968
	969	/**
	970	* Check if the given message ID is part of the current search set
	971	*
ed5407	972	* @return boolean True on match or if no search request is stored
110748	973	*/
T	974	function in_searchset($msgid)
	975	{
	976	if (!empty($this->search_string))
	977	return in_array("$msgid", (array)$this->search_set, true);
	978	else
	979	return true;
	980	}
4e17e6	981
T	982
8d4bcd	983	/**
T	984	* Return message headers object of a specific message
	985	*
	986	* @param int Message ID
	987	* @param string Mailbox to read from
	988	* @param boolean True if $id is the message UID
	989	* @return object Message headers representation
	990	*/
aadfa1	991	function get_headers($id, $mbox_name=NULL, $is_uid=TRUE)
4e17e6	992	{
aadfa1	993	$mailbox = $mbox_name ? $this->_mod_mailbox($mbox_name) : $this->mailbox;
8d4bcd	994	$uid = $is_uid ? $id : $this->_id2uid($id);
1cded8	995
4e17e6	996	// get cached headers
f7bfec	997	if ($uid && ($headers = &$this->get_cached_message($mailbox.'.msg', $uid)))
1cded8	998	return $headers;
520c36	999
f7bfec	1000	$headers = iil_C_FetchHeader($this->conn, $mailbox, $id, $is_uid);
520c36	1001
4e17e6	1002	// write headers cache
1cded8	1003	if ($headers)
f7bfec	1004	{
017def	1005	if ($headers->uid && $headers->id)
T	1006	$this->uid_id_map[$mailbox][$headers->uid] = $headers->id;
f7bfec	1007
T	1008	$this->add_message_cache($mailbox.'.msg', $headers->id, $headers);
	1009	}
4e17e6	1010
1cded8	1011	return $headers;
4e17e6	1012	}
T	1013
	1014
8d4bcd	1015	/**
T	1016	* Fetch body structure from the IMAP server and build
	1017	* an object structure similar to the one generated by PEAR::Mail_mimeDecode
	1018	*
6d969b	1019	* @param int Message UID to fetch
e93e54	1020	* @return object rcube_message_part Message part tree or False on failure
8d4bcd	1021	*/
T	1022	function &get_structure($uid)
4e17e6	1023	{
f7bfec	1024	$cache_key = $this->mailbox.'.msg';
T	1025	$headers = &$this->get_cached_message($cache_key, $uid, true);
	1026
	1027	// return cached message structure
	1028	if (is_object($headers) && is_object($headers->structure))
	1029	return $headers->structure;
	1030
	1031	// resolve message sequence number
4e17e6	1032	if (!($msg_id = $this->_uid2id($uid)))
T	1033	return FALSE;
	1034
5cc4b1	1035	$structure_str = iil_C_FetchStructureString($this->conn, $this->mailbox, $msg_id);
T	1036	$structure = iml_GetRawStructureArray($structure_str);
	1037	$struct = false;
	1038
8d4bcd	1039	// parse structure and add headers
T	1040	if (!empty($structure))
	1041	{
	1042	$this->_msg_id = $msg_id;
017def	1043	$headers = $this->get_headers($uid);
8d4bcd	1044
T	1045	$struct = &$this->_structure_part($structure);
	1046	$struct->headers = get_object_vars($headers);
58afbe	1047
8d4bcd	1048	// don't trust given content-type
58afbe	1049	if (empty($struct->parts) && !empty($struct->headers['ctype']))
8d4bcd	1050	{
T	1051	$struct->mime_id = '1';
	1052	$struct->mimetype = strtolower($struct->headers['ctype']);
	1053	list($struct->ctype_primary, $struct->ctype_secondary) = explode('/', $struct->mimetype);
	1054	}
f7bfec	1055
T	1056	// write structure to cache
	1057	if ($this->caching_enabled)
	1058	$this->add_message_cache($cache_key, $msg_id, $headers, $struct);
8d4bcd	1059	}
94a99c	1060
5cc4b1	1061	return $struct;
T	1062	}
4e17e6	1063
8d4bcd	1064
T	1065	/**
	1066	* Build message part object
	1067	*
	1068	* @access private
	1069	*/
	1070	function &_structure_part($part, $count=0, $parent='')
	1071	{
	1072	$struct = new rcube_message_part;
	1073	$struct->mime_id = empty($parent) ? (string)$count : "$parent.$count";
4e17e6	1074
8d4bcd	1075	// multipart
T	1076	if (is_array($part[0]))
	1077	{
	1078	$struct->ctype_primary = 'multipart';
	1079
	1080	// find first non-array entry
cfe4a6	1081	for ($i=1; $i<count($part); $i++)
8d4bcd	1082	if (!is_array($part[$i]))
T	1083	{
	1084	$struct->ctype_secondary = strtolower($part[$i]);
	1085	break;
	1086	}
	1087
	1088	$struct->mimetype = 'multipart/'.$struct->ctype_secondary;
	1089
	1090	$struct->parts = array();
	1091	for ($i=0, $count=0; $i<count($part); $i++)
cfe4a6	1092	if (is_array($part[$i]) && count($part[$i]) > 3)
8d4bcd	1093	$struct->parts[] = $this->_structure_part($part[$i], ++$count, $struct->mime_id);
5cc4b1	1094
T	1095	return $struct;
8d4bcd	1096	}
T	1097
	1098
	1099	// regular part
	1100	$struct->ctype_primary = strtolower($part[0]);
	1101	$struct->ctype_secondary = strtolower($part[1]);
	1102	$struct->mimetype = $struct->ctype_primary.'/'.$struct->ctype_secondary;
5cc4b1	1103
8d4bcd	1104	// read content type parameters
5cc4b1	1105	if (is_array($part[2]))
T	1106	{
	1107	$struct->ctype_parameters = array();
8d4bcd	1108	for ($i=0; $i<count($part[2]); $i+=2)
T	1109	$struct->ctype_parameters[strtolower($part[2][$i])] = $part[2][$i+1];
	1110
	1111	if (isset($struct->ctype_parameters['charset']))
	1112	$struct->charset = $struct->ctype_parameters['charset'];
5cc4b1	1113	}
T	1114
	1115	// read content encoding
	1116	if (!empty($part[5]) && $part[5]!='NIL')
	1117	{
	1118	$struct->encoding = strtolower($part[5]);
	1119	$struct->headers['content-transfer-encoding'] = $struct->encoding;
	1120	}
	1121
	1122	// get part size
	1123	if (!empty($part[6]) && $part[6]!='NIL')
	1124	$struct->size = intval($part[6]);
2f2f15	1125
5cc4b1	1126	// read part disposition
ea206d	1127	$di = count($part) - 2;
2f2f15	1128	if ((is_array($part[$di]) && count($part[$di]) == 2 && is_array($part[$di][1])) \|\|
T	1129	(is_array($part[--$di]) && count($part[$di]) == 2))
8d4bcd	1130	{
T	1131	$struct->disposition = strtolower($part[$di][0]);
	1132
	1133	if (is_array($part[$di][1]))
	1134	for ($n=0; $n<count($part[$di][1]); $n+=2)
	1135	$struct->d_parameters[strtolower($part[$di][1][$n])] = $part[$di][1][$n+1];
	1136	}
	1137
	1138	// get child parts
	1139	if (is_array($part[8]) && $di != 8)
	1140	{
	1141	$struct->parts = array();
	1142	for ($i=0, $count=0; $i<count($part[8]); $i++)
	1143	if (is_array($part[8][$i]) && count($part[8][$i]) > 5)
	1144	$struct->parts[] = $this->_structure_part($part[8][$i], ++$count, $struct->mime_id);
	1145	}
5cc4b1	1146
T	1147	// get part ID
	1148	if (!empty($part[3]) && $part[3]!='NIL')
	1149	{
	1150	$struct->content_id = $part[3];
	1151	$struct->headers['content-id'] = $part[3];
	1152
	1153	if (empty($struct->disposition))
	1154	$struct->disposition = 'inline';
	1155	}
c505e5	1156
T	1157	// fetch message headers if message/rfc822 or named part (could contain Content-Location header)
	1158	if ($struct->ctype_primary == 'message' \|\| ($struct->ctype_parameters['name'] && !$struct->content_id)) {
	1159	$part_headers = iil_C_FetchPartHeader($this->conn, $this->mailbox, $this->_msg_id, $struct->mime_id);
	1160	$struct->headers = $this->_parse_headers($part_headers) + $struct->headers;
	1161	}
8d4bcd	1162
c505e5	1163	if ($struct->ctype_primary=='message') {
5cc4b1	1164	if (is_array($part[8]) && empty($struct->parts))
T	1165	$struct->parts[] = $this->_structure_part($part[8], ++$count, $struct->mime_id);
c505e5	1166	}
b54121	1167
5cc4b1	1168	// normalize filename property
5df0ad	1169	$this->_set_part_filename($struct);
A	1170
5cc4b1	1171	return $struct;
8d4bcd	1172	}
T	1173
5df0ad	1174
A	1175	/**
97e9d1	1176	* Set attachment filename from message part structure
5df0ad	1177	*
A	1178	* @access private
	1179	* @param object rcube_message_part Part object
	1180	*/
	1181	function _set_part_filename(&$part)
	1182	{
	1183	if (!empty($part->d_parameters['filename']))
	1184	$filename_mime = $part->d_parameters['filename'];
	1185	else if (!empty($part->d_parameters['filename*']))
	1186	$filename_encoded = $part->d_parameters['filename*'];
	1187	else if (!empty($part->ctype_parameters['name*']))
	1188	$filename_encoded = $part->ctype_parameters['name*'];
	1189	// RFC2231 value continuations
	1190	// TODO: this should be rewrited to support RFC2231 4.1 combinations
	1191	else if (!empty($part->d_parameters['filename*0'])) {
	1192	$i = 0;
	1193	while (isset($part->d_parameters['filename*'.$i])) {
	1194	$i++;
	1195	$filename_mime .= $part->d_parameters['filename*'.$i];
	1196	}
	1197	// some servers (eg. dovecot-1.x) have no support for parameter value continuations
	1198	// we must fetch and parse headers "manually"
20a251	1199	//TODO: fetching headers for a second time is not effecient, this code should be moved somewhere earlier --tensor
5df0ad	1200	if ($i<2) {
A	1201	// TODO: fetch only Content-Type/Content-Disposition header
20a251	1202	$headers = iil_C_FetchPartHeader($this->conn, $this->mailbox, $this->_msg_id, $part->mime_id);
42e328	1203	$filename_mime = '';
T	1204	$i = 0;
	1205	while (preg_match('/filename\'.$i.'\s=\s"([^"\n;]+)[";]*/', $headers, $matches)) {
	1206	$filename_mime .= $matches[1];
	1207	$i++;
	1208	}
5df0ad	1209	}
42e328	1210	}
5df0ad	1211	else if (!empty($part->d_parameters['filename0'])) {
A	1212	$i = 0;
	1213	while (isset($part->d_parameters['filename'.$i.''])) {
	1214	$i++;
42e328	1215	$filename_encoded .= $part->d_parameters['filename'.$i.''];
T	1216	}
5df0ad	1217	if ($i<2) {
20a251	1218	$headers = iil_C_FetchPartHeader($this->conn, $this->mailbox, $this->_msg_id, $part->mime_id);
42e328	1219	$filename_encoded = '';
T	1220	$i = 0; $matches = array();
	1221	while (preg_match('/filename\'.$i.'\\s=\s"([^"\n;]+)[";]/', $headers, $matches)) {
	1222	$filename_encoded .= $matches[1];
	1223	$i++;
	1224	}
5df0ad	1225	}
42e328	1226	}
5df0ad	1227	else if (!empty($part->ctype_parameters['name*0'])) {
A	1228	$i = 0;
	1229	while (isset($part->ctype_parameters['name*'.$i])) {
	1230	$i++;
	1231	$filename_mime .= $part->ctype_parameters['name*'.$i];
42e328	1232	}
5df0ad	1233	if ($i<2) {
20a251	1234	$headers = iil_C_FetchPartHeader($this->conn, $this->mailbox, $this->_msg_id, $part->mime_id);
42e328	1235	$filename_mime = '';
T	1236	$i = 0; $matches = array();
	1237	while (preg_match('/\s+name\'.$i.'\s=\s"([^"\n;]+)[";]*/', $headers, $matches)) {
	1238	$filename_mime .= $matches[1];
	1239	$i++;
	1240	}
5df0ad	1241	}
42e328	1242	}
5df0ad	1243	else if (!empty($part->ctype_parameters['name0'])) {
A	1244	$i = 0;
	1245	while (isset($part->ctype_parameters['name'.$i.''])) {
	1246	$i++;
	1247	$filename_encoded .= $part->ctype_parameters['name'.$i.''];
42e328	1248	}
5df0ad	1249	if ($i<2) {
20a251	1250	$headers = iil_C_FetchPartHeader($this->conn, $this->mailbox, $this->_msg_id, $part->mime_id);
42e328	1251	$filename_encoded = '';
T	1252	$i = 0; $matches = array();
	1253	while (preg_match('/\s+name\'.$i.'\\s=\s"([^"\n;]+)[";]/', $headers, $matches)) {
	1254	$filename_encoded .= $matches[1];
	1255	$i++;
	1256	}
5df0ad	1257	}
42e328	1258	}
5b4562	1259	// read 'name' after rfc2231 parameters as it may contains truncated filename (from Thunderbird)
A	1260	else if (!empty($part->ctype_parameters['name']))
	1261	$filename_mime = $part->ctype_parameters['name'];
5df0ad	1262	// Content-Disposition
A	1263	else if (!empty($part->headers['content-description']))
	1264	$filename_mime = $part->headers['content-description'];
	1265	else
	1266	return;
	1267
	1268	// decode filename
	1269	if (!empty($filename_mime)) {
	1270	$part->filename = rcube_imap::decode_mime_string($filename_mime,
42e328	1271	$part->charset ? $part->charset : rc_detect_encoding($filename_mime, $this->default_charset));
5df0ad	1272	}
A	1273	else if (!empty($filename_encoded)) {
	1274	// decode filename according to RFC 2231, Section 4
94a99c	1275	if (preg_match("/^([^'])'[^']'(.*)$/", $filename_encoded, $fmatches)) {
A	1276	$filename_charset = $fmatches[1];
	1277	$filename_encoded = $fmatches[2];
	1278	}
	1279	$part->filename = rcube_charset_convert(urldecode($filename_encoded), $filename_charset);
5df0ad	1280	}
A	1281	}
	1282
8d4bcd	1283
T	1284	/**
	1285	* Fetch message body of a specific message from the server
	1286	*
	1287	* @param int Message UID
	1288	* @param string Part number
6d969b	1289	* @param object rcube_message_part Part object created by get_structure()
8d4bcd	1290	* @param mixed True to print part, ressource to write part contents in
81b573	1291	* @param resource File pointer to save the message part
6d969b	1292	* @return string Message/part body if not printed
8d4bcd	1293	*/
81b573	1294	function &get_message_part($uid, $part=1, $o_part=NULL, $print=NULL, $fp=NULL)
8d4bcd	1295	{
T	1296	if (!($msg_id = $this->_uid2id($uid)))
	1297	return FALSE;
	1298
	1299	// get part encoding if not provided
	1300	if (!is_object($o_part))
	1301	{
	1302	$structure_str = iil_C_FetchStructureString($this->conn, $this->mailbox, $msg_id);
	1303	$structure = iml_GetRawStructureArray($structure_str);
	1304	$part_type = iml_GetPartTypeCode($structure, $part);
	1305	$o_part = new rcube_message_part;
	1306	$o_part->ctype_primary = $part_type==0 ? 'text' : ($part_type==2 ? 'message' : 'other');
	1307	$o_part->encoding = strtolower(iml_GetPartEncodingString($structure, $part));
	1308	$o_part->charset = iml_GetPartCharset($structure, $part);
	1309	}
	1310
	1311	// TODO: Add caching for message parts
	1312
	1313	if ($print)
	1314	{
a9cc52	1315	$mode = $o_part->encoding == 'base64' ? 3 : ($o_part->encoding == 'quoted-printable' ? 1 : 2);
T	1316	$body = iil_C_HandlePartBody($this->conn, $this->mailbox, $msg_id, $part, $mode);
	1317
	1318	// we have to decode the part manually before printing
	1319	if ($mode == 1)
	1320	{
	1321	echo $this->mime_decode($body, $o_part->encoding);
	1322	$body = true;
	1323	}
8d4bcd	1324	}
T	1325	else
	1326	{
81b573	1327	if ($fp && $o_part->encoding == 'base64')
A	1328	return iil_C_HandlePartBody($this->conn, $this->mailbox, $msg_id, $part, 3, $fp);
	1329	else
	1330	$body = iil_C_HandlePartBody($this->conn, $this->mailbox, $msg_id, $part, 1);
8d4bcd	1331
T	1332	// decode part body
a9cc52	1333	if ($o_part->encoding)
8d4bcd	1334	$body = $this->mime_decode($body, $o_part->encoding);
T	1335
	1336	// convert charset (if text or message part)
f7bfec	1337	if ($o_part->ctype_primary=='text' \|\| $o_part->ctype_primary=='message')
T	1338	{
17b5fb	1339	// assume default if no charset specified
f7bfec	1340	if (empty($o_part->charset))
17b5fb	1341	$o_part->charset = $this->default_charset;
f7bfec	1342
8d4bcd	1343	$body = rcube_charset_convert($body, $o_part->charset);
f7bfec	1344	}
81b573	1345
A	1346	if ($fp)
	1347	{
	1348	fwrite($fp, $body);
42e328	1349	return true;
81b573	1350	}
8d4bcd	1351	}
81b573	1352
4e17e6	1353	return $body;
T	1354	}
	1355
	1356
8d4bcd	1357	/**
T	1358	* Fetch message body of a specific message from the server
	1359	*
	1360	* @param int Message UID
6d969b	1361	* @return string Message/part body
T	1362	* @see rcube_imap::get_message_part()
8d4bcd	1363	*/
T	1364	function &get_body($uid, $part=1)
	1365	{
0a9989	1366	$headers = $this->get_headers($uid);
T	1367	return rcube_charset_convert(
	1368	$this->mime_decode($this->get_message_part($uid, $part), 'quoted-printable'),
	1369	$headers->charset ? $headers->charset : $this->default_charset);
8d4bcd	1370	}
T	1371
	1372
	1373	/**
	1374	* Returns the whole message source as string
	1375	*
	1376	* @param int Message UID
6d969b	1377	* @return string Message source string
8d4bcd	1378	*/
T	1379	function &get_raw_body($uid)
4e17e6	1380	{
T	1381	if (!($msg_id = $this->_uid2id($uid)))
	1382	return FALSE;
	1383
6d969b	1384	$body = iil_C_FetchPartHeader($this->conn, $this->mailbox, $msg_id, NULL);
T	1385	$body .= iil_C_HandlePartBody($this->conn, $this->mailbox, $msg_id, NULL, 1);
4e17e6	1386
T	1387	return $body;
	1388	}
e5686f	1389
A	1390
	1391	/**
	1392	* Returns the message headers as string
	1393	*
	1394	* @param int Message UID
	1395	* @return string Message headers string
	1396	*/
	1397	function &get_raw_headers($uid)
	1398	{
	1399	if (!($msg_id = $this->_uid2id($uid)))
	1400	return FALSE;
	1401
	1402	$headers = iil_C_FetchPartHeader($this->conn, $this->mailbox, $msg_id, NULL);
	1403
	1404	return $headers;
	1405	}
8d4bcd	1406
T	1407
	1408	/**
	1409	* Sends the whole message source to stdout
	1410	*
	1411	* @param int Message UID
	1412	*/
	1413	function print_raw_body($uid)
	1414	{
	1415	if (!($msg_id = $this->_uid2id($uid)))
	1416	return FALSE;
	1417
6d969b	1418	print iil_C_FetchPartHeader($this->conn, $this->mailbox, $msg_id, NULL);
T	1419	flush();
	1420	iil_C_HandlePartBody($this->conn, $this->mailbox, $msg_id, NULL, 2);
8d4bcd	1421	}
4e17e6	1422
T	1423
8d4bcd	1424	/**
T	1425	* Set message flag to one or several messages
	1426	*
	1427	* @param mixed Message UIDs as array or as comma-separated string
ed5407	1428	* @param string Flag to set: SEEN, UNDELETED, DELETED, RECENT, ANSWERED, DRAFT, MDNSENT
6d969b	1429	* @return boolean True on success, False on failure
8d4bcd	1430	*/
4e17e6	1431	function set_flag($uids, $flag)
T	1432	{
	1433	$flag = strtoupper($flag);
	1434	$msg_ids = array();
	1435	if (!is_array($uids))
8fae1e	1436	$uids = explode(',',$uids);
4e17e6	1437
8fae1e	1438	foreach ($uids as $uid) {
31b2ce	1439	$msg_ids[$uid] = $this->_uid2id($uid);
8fae1e	1440	}
4e17e6	1441
8fae1e	1442	if ($flag=='UNDELETED')
S	1443	$result = iil_C_Undelete($this->conn, $this->mailbox, join(',', array_values($msg_ids)));
	1444	else if ($flag=='UNSEEN')
31b2ce	1445	$result = iil_C_Unseen($this->conn, $this->mailbox, join(',', array_values($msg_ids)));
e189a6	1446	else if ($flag=='UNFLAGGED')
A	1447	$result = iil_C_UnFlag($this->conn, $this->mailbox, join(',', array_values($msg_ids)), 'FLAGGED');
4e17e6	1448	else
31b2ce	1449	$result = iil_C_Flag($this->conn, $this->mailbox, join(',', array_values($msg_ids)), $flag);
4e17e6	1450
T	1451	// reload message headers if cached
	1452	$cache_key = $this->mailbox.'.msg';
1cded8	1453	if ($this->caching_enabled)
4e17e6	1454	{
31b2ce	1455	foreach ($msg_ids as $uid => $id)
4e17e6	1456	{
31b2ce	1457	if ($cached_headers = $this->get_cached_message($cache_key, $uid))
4e17e6	1458	{
1cded8	1459	$this->remove_message_cache($cache_key, $id);
T	1460	//$this->get_headers($uid);
4e17e6	1461	}
T	1462	}
1cded8	1463
T	1464	// close and re-open connection
	1465	// this prevents connection problems with Courier
	1466	$this->reconnect();
4e17e6	1467	}
T	1468
	1469	// set nr of messages that were flaged
31b2ce	1470	$count = count($msg_ids);
4e17e6	1471
T	1472	// clear message count cache
	1473	if ($result && $flag=='SEEN')
	1474	$this->_set_messagecount($this->mailbox, 'UNSEEN', $count*(-1));
	1475	else if ($result && $flag=='UNSEEN')
	1476	$this->_set_messagecount($this->mailbox, 'UNSEEN', $count);
	1477	else if ($result && $flag=='DELETED')
	1478	$this->_set_messagecount($this->mailbox, 'ALL', $count*(-1));
	1479
	1480	return $result;
	1481	}
	1482
	1483
6d969b	1484	/**
T	1485	* Append a mail message (source) to a specific mailbox
	1486	*
	1487	* @param string Target mailbox
	1488	* @param string Message source
	1489	* @return boolean True on success, False on error
	1490	*/
b068a0	1491	function save_message($mbox_name, &$message)
4e17e6	1492	{
a894ba	1493	$mbox_name = stripslashes($mbox_name);
aadfa1	1494	$mailbox = $this->_mod_mailbox($mbox_name);
4e17e6	1495
f88d41	1496	// make sure mailbox exists
47c9cc	1497	if (($mailbox == 'INBOX') \|\| in_array($mailbox, $this->_list_mailboxes()))
4e17e6	1498	$saved = iil_C_Append($this->conn, $mailbox, $message);
1cded8	1499
4e17e6	1500	if ($saved)
T	1501	{
	1502	// increase messagecount of the target mailbox
	1503	$this->_set_messagecount($mailbox, 'ALL', 1);
	1504	}
	1505
	1506	return $saved;
	1507	}
	1508
	1509
6d969b	1510	/**
T	1511	* Move a message from one mailbox to another
	1512	*
	1513	* @param string List of UIDs to move, separated by comma
	1514	* @param string Target mailbox
	1515	* @param string Source mailbox
	1516	* @return boolean True on success, False on error
	1517	*/
4e17e6	1518	function move_message($uids, $to_mbox, $from_mbox='')
T	1519	{
a05793	1520	$to_mbox_in = stripslashes($to_mbox);
a894ba	1521	$from_mbox = stripslashes($from_mbox);
a05793	1522	$to_mbox = $this->_mod_mailbox($to_mbox_in);
4e17e6	1523	$from_mbox = $from_mbox ? $this->_mod_mailbox($from_mbox) : $this->mailbox;
T	1524
f88d41	1525	// make sure mailbox exists
4e17e6	1526	if (!in_array($to_mbox, $this->_list_mailboxes()))
f88d41	1527	{
a05793	1528	if (in_array($to_mbox_in, $this->default_folders))
T	1529	$this->create_mailbox($to_mbox_in, TRUE);
f88d41	1530	else
T	1531	return FALSE;
	1532	}
	1533
4e17e6	1534	// convert the list of uids to array
T	1535	$a_uids = is_string($uids) ? explode(',', $uids) : (is_array($uids) ? $uids : NULL);
	1536
	1537	// exit if no message uids are specified
	1538	if (!is_array($a_uids))
	1539	return false;
520c36	1540
4e17e6	1541	// convert uids to message ids
T	1542	$a_mids = array();
	1543	foreach ($a_uids as $uid)
	1544	$a_mids[] = $this->_uid2id($uid, $from_mbox);
520c36	1545
4379bb	1546	$iil_move = iil_C_Move($this->conn, join(',', $a_mids), $from_mbox, $to_mbox);
T	1547	$moved = !($iil_move === false \|\| $iil_move < 0);
4e17e6	1548
T	1549	// send expunge command in order to have the moved message
	1550	// really deleted from the source mailbox
bf0cb9	1551	if ($moved) {
d87fc2	1552	// but only when flag_for_deletion is set to false
A	1553	if (!rcmail::get_instance()->config->get('flag_for_deletion', false))
	1554	{
	1555	$this->_expunge($from_mbox, FALSE);
	1556	$this->_clear_messagecount($from_mbox);
	1557	$this->_clear_messagecount($to_mbox);
	1558	}
bf0cb9	1559	}
T	1560	// moving failed
	1561	else if (rcmail::get_instance()->config->get('delete_always', false)) {
	1562	return iil_C_Delete($this->conn, $from_mbox, join(',', $a_mids));
	1563	}
04c618	1564
T	1565	// remove message ids from search set
	1566	if ($moved && $this->search_set && $from_mbox == $this->mailbox)
	1567	$this->search_set = array_diff($this->search_set, $a_mids);
4e17e6	1568
T	1569	// update cached message headers
	1570	$cache_key = $from_mbox.'.msg';
1cded8	1571	if ($moved && ($a_cache_index = $this->get_message_cache_index($cache_key)))
4e17e6	1572	{
1cded8	1573	$start_index = 100000;
4e17e6	1574	foreach ($a_uids as $uid)
1cded8	1575	{
04c618	1576	if (($index = array_search($uid, $a_cache_index)) !== FALSE)
T	1577	$start_index = min($index, $start_index);
1cded8	1578	}
4e17e6	1579
1cded8	1580	// clear cache from the lowest index on
T	1581	$this->clear_message_cache($cache_key, $start_index);
4e17e6	1582	}
T	1583
	1584	return $moved;
	1585	}
	1586
	1587
6d969b	1588	/**
T	1589	* Mark messages as deleted and expunge mailbox
	1590	*
	1591	* @param string List of UIDs to move, separated by comma
	1592	* @param string Source mailbox
	1593	* @return boolean True on success, False on error
	1594	*/
aadfa1	1595	function delete_message($uids, $mbox_name='')
4e17e6	1596	{
a894ba	1597	$mbox_name = stripslashes($mbox_name);
aadfa1	1598	$mailbox = $mbox_name ? $this->_mod_mailbox($mbox_name) : $this->mailbox;
4e17e6	1599
T	1600	// convert the list of uids to array
	1601	$a_uids = is_string($uids) ? explode(',', $uids) : (is_array($uids) ? $uids : NULL);
	1602
	1603	// exit if no message uids are specified
	1604	if (!is_array($a_uids))
	1605	return false;
	1606
	1607	// convert uids to message ids
	1608	$a_mids = array();
	1609	foreach ($a_uids as $uid)
	1610	$a_mids[] = $this->_uid2id($uid, $mailbox);
	1611
	1612	$deleted = iil_C_Delete($this->conn, $mailbox, join(',', $a_mids));
	1613
	1614	// send expunge command in order to have the deleted message
	1615	// really deleted from the mailbox
	1616	if ($deleted)
	1617	{
1cded8	1618	$this->_expunge($mailbox, FALSE);
4e17e6	1619	$this->_clear_messagecount($mailbox);
c719f3	1620	unset($this->uid_id_map[$mailbox]);
4e17e6	1621	}
T	1622
04c618	1623	// remove message ids from search set
077070	1624	if ($deleted && $this->search_set && $mailbox == $this->mailbox)
04c618	1625	$this->search_set = array_diff($this->search_set, $a_mids);
T	1626
4e17e6	1627	// remove deleted messages from cache
1cded8	1628	$cache_key = $mailbox.'.msg';
T	1629	if ($deleted && ($a_cache_index = $this->get_message_cache_index($cache_key)))
4e17e6	1630	{
1cded8	1631	$start_index = 100000;
4e17e6	1632	foreach ($a_uids as $uid)
1cded8	1633	{
6ce04b	1634	if (($index = array_search($uid, $a_cache_index)) !== FALSE)
S	1635	$start_index = min($index, $start_index);
1cded8	1636	}
4e17e6	1637
1cded8	1638	// clear cache from the lowest index on
T	1639	$this->clear_message_cache($cache_key, $start_index);
4e17e6	1640	}
T	1641
	1642	return $deleted;
	1643	}
	1644
	1645
6d969b	1646	/**
T	1647	* Clear all messages in a specific mailbox
	1648	*
	1649	* @param string Mailbox name
	1650	* @return int Above 0 on success
	1651	*/
aadfa1	1652	function clear_mailbox($mbox_name=NULL)
a95e0e	1653	{
a894ba	1654	$mbox_name = stripslashes($mbox_name);
aadfa1	1655	$mailbox = !empty($mbox_name) ? $this->_mod_mailbox($mbox_name) : $this->mailbox;
a95e0e	1656	$msg_count = $this->_messagecount($mailbox, 'ALL');
T	1657
	1658	if ($msg_count>0)
1cded8	1659	{
5e3512	1660	$cleared = iil_C_ClearFolder($this->conn, $mailbox);
T	1661
	1662	// make sure the message count cache is cleared as well
	1663	if ($cleared)
	1664	{
	1665	$this->clear_message_cache($mailbox.'.msg');
	1666	$a_mailbox_cache = $this->get_cache('messagecount');
	1667	unset($a_mailbox_cache[$mailbox]);
	1668	$this->update_cache('messagecount', $a_mailbox_cache);
	1669	}
	1670
	1671	return $cleared;
1cded8	1672	}
a95e0e	1673	else
T	1674	return 0;
	1675	}
	1676
	1677
6d969b	1678	/**
T	1679	* Send IMAP expunge command and clear cache
	1680	*
	1681	* @param string Mailbox name
	1682	* @param boolean False if cache should not be cleared
	1683	* @return boolean True on success
	1684	*/
aadfa1	1685	function expunge($mbox_name='', $clear_cache=TRUE)
4e17e6	1686	{
a894ba	1687	$mbox_name = stripslashes($mbox_name);
aadfa1	1688	$mailbox = $mbox_name ? $this->_mod_mailbox($mbox_name) : $this->mailbox;
1cded8	1689	return $this->_expunge($mailbox, $clear_cache);
T	1690	}
	1691
	1692
6d969b	1693	/**
T	1694	* Send IMAP expunge command and clear cache
	1695	*
	1696	* @see rcube_imap::expunge()
	1697	* @access private
	1698	*/
1cded8	1699	function _expunge($mailbox, $clear_cache=TRUE)
T	1700	{
4e17e6	1701	$result = iil_C_Expunge($this->conn, $mailbox);
T	1702
	1703	if ($result>=0 && $clear_cache)
	1704	{
5c69aa	1705	$this->clear_message_cache($mailbox.'.msg');
4e17e6	1706	$this->_clear_messagecount($mailbox);
T	1707	}
	1708
	1709	return $result;
	1710	}
	1711
	1712
	1713	/* --------------------------------
	1714	* folder managment
	1715	* --------------------------------*/
	1716
	1717
fa4cd2	1718	/**
T	1719	* Get a list of all folders available on the IMAP server
	1720	*
	1721	* @param string IMAP root dir
6d969b	1722	* @return array Indexed array with folder names
fa4cd2	1723	*/
4e17e6	1724	function list_unsubscribed($root='')
T	1725	{
	1726	static $sa_unsubscribed;
	1727
	1728	if (is_array($sa_unsubscribed))
	1729	return $sa_unsubscribed;
	1730
	1731	// retrieve list of folders from IMAP server
	1732	$a_mboxes = iil_C_ListMailboxes($this->conn, $this->_mod_mailbox($root), '*');
	1733
	1734	// modify names with root dir
aadfa1	1735	foreach ($a_mboxes as $mbox_name)
4e17e6	1736	{
aadfa1	1737	$name = $this->_mod_mailbox($mbox_name, 'out');
4e17e6	1738	if (strlen($name))
T	1739	$a_folders[] = $name;
	1740	}
	1741
	1742	// filter folders and sort them
	1743	$sa_unsubscribed = $this->_sort_mailbox_list($a_folders);
	1744	return $sa_unsubscribed;
	1745	}
	1746
	1747
58e360	1748	/**
6d969b	1749	* Get mailbox quota information
58e360	1750	* added by Nuny
6d969b	1751	*
T	1752	* @return mixed Quota info or False if not supported
58e360	1753	*/
T	1754	function get_quota()
	1755	{
	1756	if ($this->get_capability('QUOTA'))
fda695	1757	return iil_C_GetQuota($this->conn);
3ea0e3	1758
4647e1	1759	return FALSE;
58e360	1760	}
T	1761
	1762
fa4cd2	1763	/**
6d969b	1764	* Subscribe to a specific mailbox(es)
T	1765	*
c5097c	1766	* @param array Mailbox name(s)
6d969b	1767	* @return boolean True on success
fa4cd2	1768	*/
c5097c	1769	function subscribe($a_mboxes)
4e17e6	1770	{
c5097c	1771	if (!is_array($a_mboxes))
A	1772	$a_mboxes = array($a_mboxes);
	1773
4e17e6	1774	// let this common function do the main work
T	1775	return $this->_change_subscription($a_mboxes, 'subscribe');
	1776	}
	1777
	1778
fa4cd2	1779	/**
6d969b	1780	* Unsubscribe mailboxes
T	1781	*
c5097c	1782	* @param array Mailbox name(s)
6d969b	1783	* @return boolean True on success
fa4cd2	1784	*/
c5097c	1785	function unsubscribe($a_mboxes)
4e17e6	1786	{
c5097c	1787	if (!is_array($a_mboxes))
A	1788	$a_mboxes = array($a_mboxes);
4e17e6	1789
T	1790	// let this common function do the main work
	1791	return $this->_change_subscription($a_mboxes, 'unsubscribe');
	1792	}
	1793
	1794
fa4cd2	1795	/**
4d4264	1796	* Create a new mailbox on the server and register it in local cache
T	1797	*
	1798	* @param string New mailbox name (as utf-7 string)
	1799	* @param boolean True if the new mailbox should be subscribed
	1800	* @param string Name of the created mailbox, false on error
fa4cd2	1801	*/
4e17e6	1802	function create_mailbox($name, $subscribe=FALSE)
T	1803	{
	1804	$result = FALSE;
1cded8	1805
T	1806	// replace backslashes
	1807	$name = preg_replace('/[\\\]+/', '-', $name);
	1808
	1809	// reduce mailbox name to 100 chars
4d4264	1810	$name = substr($name, 0, 100);
1cded8	1811
4d4264	1812	$abs_name = $this->_mod_mailbox($name);
4e17e6	1813	$a_mailbox_cache = $this->get_cache('mailboxes');
fa4cd2	1814
719a25	1815	if (strlen($abs_name) && (!is_array($a_mailbox_cache) \|\| !in_array($abs_name, $a_mailbox_cache)))
a95e0e	1816	$result = iil_C_CreateFolder($this->conn, $abs_name);
4e17e6	1817
fa4cd2	1818	// try to subscribe it
719a25	1819	if ($result && $subscribe)
4d4264	1820	$this->subscribe($name);
4e17e6	1821
7902df	1822	return $result ? $name : FALSE;
4e17e6	1823	}
T	1824
	1825
fa4cd2	1826	/**
4d4264	1827	* Set a new name to an existing mailbox
T	1828	*
	1829	* @param string Mailbox to rename (as utf-7 string)
	1830	* @param string New mailbox name (as utf-7 string)
6d969b	1831	* @return string Name of the renames mailbox, False on error
fa4cd2	1832	*/
f9c107	1833	function rename_mailbox($mbox_name, $new_name)
4e17e6	1834	{
c8c1e0	1835	$result = FALSE;
S	1836
	1837	// replace backslashes
	1838	$name = preg_replace('/[\\\]+/', '-', $new_name);
f9c107	1839
T	1840	// encode mailbox name and reduce it to 100 chars
4d4264	1841	$name = substr($new_name, 0, 100);
c8c1e0	1842
f9c107	1843	// make absolute path
T	1844	$mailbox = $this->_mod_mailbox($mbox_name);
4d4264	1845	$abs_name = $this->_mod_mailbox($name);
f7bfec	1846
T	1847	// check if mailbox is subscribed
	1848	$a_subscribed = $this->_list_mailboxes();
	1849	$subscribed = in_array($mailbox, $a_subscribed);
	1850
	1851	// unsubscribe folder
	1852	if ($subscribed)
	1853	iil_C_UnSubscribe($this->conn, $mailbox);
4d4264	1854
f9c107	1855	if (strlen($abs_name))
T	1856	$result = iil_C_RenameFolder($this->conn, $mailbox, $abs_name);
4d4264	1857
f9c107	1858	if ($result)
T	1859	{
574564	1860	$delm = $this->get_hierarchy_delimiter();
T	1861
	1862	// check if mailbox children are subscribed
	1863	foreach ($a_subscribed as $c_subscribed)
	1864	if (preg_match('/^'.preg_quote($mailbox.$delm, '/').'/', $c_subscribed))
	1865	{
	1866	iil_C_UnSubscribe($this->conn, $c_subscribed);
	1867	iil_C_Subscribe($this->conn, preg_replace('/^'.preg_quote($mailbox, '/').'/', $abs_name, $c_subscribed));
	1868	}
	1869
	1870	// clear cache
f9c107	1871	$this->clear_message_cache($mailbox.'.msg');
f7bfec	1872	$this->clear_cache('mailboxes');
f9c107	1873	}
f7bfec	1874
4d4264	1875	// try to subscribe it
f7bfec	1876	if ($result && $subscribed)
T	1877	iil_C_Subscribe($this->conn, $abs_name);
c8c1e0	1878
S	1879	return $result ? $name : FALSE;
4e17e6	1880	}
T	1881
	1882
fa4cd2	1883	/**
6d969b	1884	* Remove mailboxes from server
T	1885	*
	1886	* @param string Mailbox name
	1887	* @return boolean True on success
fa4cd2	1888	*/
aadfa1	1889	function delete_mailbox($mbox_name)
4e17e6	1890	{
T	1891	$deleted = FALSE;
	1892
aadfa1	1893	if (is_array($mbox_name))
S	1894	$a_mboxes = $mbox_name;
	1895	else if (is_string($mbox_name) && strlen($mbox_name))
	1896	$a_mboxes = explode(',', $mbox_name);
4e17e6	1897
97a656	1898	$all_mboxes = iil_C_ListMailboxes($this->conn, $this->_mod_mailbox($root), '*');
S	1899
4e17e6	1900	if (is_array($a_mboxes))
aadfa1	1901	foreach ($a_mboxes as $mbox_name)
4e17e6	1902	{
aadfa1	1903	$mailbox = $this->_mod_mailbox($mbox_name);
4e17e6	1904
T	1905	// unsubscribe mailbox before deleting
	1906	iil_C_UnSubscribe($this->conn, $mailbox);
fa4cd2	1907
4e17e6	1908	// send delete command to server
T	1909	$result = iil_C_DeleteFolder($this->conn, $mailbox);
	1910	if ($result>=0)
	1911	$deleted = TRUE;
97a656	1912
S	1913	foreach ($all_mboxes as $c_mbox)
fa0152	1914	{
T	1915	$regex = preg_quote($mailbox . $this->delimiter, '/');
	1916	$regex = '/^' . $regex . '/';
	1917	if (preg_match($regex, $c_mbox))
97a656	1918	{
S	1919	iil_C_UnSubscribe($this->conn, $c_mbox);
	1920	$result = iil_C_DeleteFolder($this->conn, $c_mbox);
	1921	if ($result>=0)
	1922	$deleted = TRUE;
	1923	}
fa0152	1924	}
4e17e6	1925	}
T	1926
	1927	// clear mailboxlist cache
	1928	if ($deleted)
1cded8	1929	{
T	1930	$this->clear_message_cache($mailbox.'.msg');
4e17e6	1931	$this->clear_cache('mailboxes');
1cded8	1932	}
4e17e6	1933
1cded8	1934	return $deleted;
4e17e6	1935	}
T	1936
fa4cd2	1937
T	1938	/**
	1939	* Create all folders specified as default
	1940	*/
	1941	function create_default_folders()
	1942	{
	1943	$a_folders = iil_C_ListMailboxes($this->conn, $this->_mod_mailbox(''), '*');
	1944	$a_subscribed = iil_C_ListSubscribed($this->conn, $this->_mod_mailbox(''), '*');
	1945
	1946	// create default folders if they do not exist
	1947	foreach ($this->default_folders as $folder)
	1948	{
	1949	$abs_name = $this->_mod_mailbox($folder);
719a25	1950	if (!in_array_nocase($abs_name, $a_folders))
T	1951	$this->create_mailbox($folder, TRUE);
	1952	else if (!in_array_nocase($abs_name, $a_subscribed))
	1953	$this->subscribe($folder);
fa4cd2	1954	}
T	1955	}
4e17e6	1956
T	1957
	1958
	1959	/* --------------------------------
1cded8	1960	* internal caching methods
4e17e6	1961	* --------------------------------*/
6dc026	1962
6d969b	1963	/**
T	1964	* @access private
	1965	*/
6dc026	1966	function set_caching($set)
T	1967	{
1cded8	1968	if ($set && is_object($this->db))
6dc026	1969	$this->caching_enabled = TRUE;
T	1970	else
	1971	$this->caching_enabled = FALSE;
	1972	}
1cded8	1973
6d969b	1974	/**
T	1975	* @access private
	1976	*/
4e17e6	1977	function get_cache($key)
T	1978	{
	1979	// read cache
6dc026	1980	if (!isset($this->cache[$key]) && $this->caching_enabled)
4e17e6	1981	{
1cded8	1982	$cache_data = $this->_read_cache_record('IMAP.'.$key);
4e17e6	1983	$this->cache[$key] = strlen($cache_data) ? unserialize($cache_data) : FALSE;
T	1984	}
	1985
1cded8	1986	return $this->cache[$key];
4e17e6	1987	}
T	1988
6d969b	1989	/**
T	1990	* @access private
	1991	*/
4e17e6	1992	function update_cache($key, $data)
T	1993	{
	1994	$this->cache[$key] = $data;
	1995	$this->cache_changed = TRUE;
	1996	$this->cache_changes[$key] = TRUE;
	1997	}
	1998
6d969b	1999	/**
T	2000	* @access private
	2001	*/
4e17e6	2002	function write_cache()
T	2003	{
6dc026	2004	if ($this->caching_enabled && $this->cache_changed)
4e17e6	2005	{
T	2006	foreach ($this->cache as $key => $data)
	2007	{
	2008	if ($this->cache_changes[$key])
1cded8	2009	$this->_write_cache_record('IMAP.'.$key, serialize($data));
4e17e6	2010	}
T	2011	}
	2012	}
	2013
6d969b	2014	/**
T	2015	* @access private
	2016	*/
4e17e6	2017	function clear_cache($key=NULL)
T	2018	{
fc2312	2019	if (!$this->caching_enabled)
A	2020	return;
	2021
4e17e6	2022	if ($key===NULL)
T	2023	{
	2024	foreach ($this->cache as $key => $data)
1cded8	2025	$this->_clear_cache_record('IMAP.'.$key);
4e17e6	2026
T	2027	$this->cache = array();
	2028	$this->cache_changed = FALSE;
	2029	$this->cache_changes = array();
	2030	}
	2031	else
	2032	{
1cded8	2033	$this->_clear_cache_record('IMAP.'.$key);
4e17e6	2034	$this->cache_changes[$key] = FALSE;
T	2035	unset($this->cache[$key]);
	2036	}
	2037	}
	2038
6d969b	2039	/**
T	2040	* @access private
	2041	*/
1cded8	2042	function _read_cache_record($key)
T	2043	{
	2044	$cache_data = FALSE;
	2045
	2046	if ($this->db)
	2047	{
	2048	// get cached data from DB
	2049	$sql_result = $this->db->query(
	2050	"SELECT cache_id, data
	2051	FROM ".get_table_name('cache')."
	2052	WHERE user_id=?
	2053	AND cache_key=?",
	2054	$_SESSION['user_id'],
	2055	$key);
	2056
	2057	if ($sql_arr = $this->db->fetch_assoc($sql_result))
	2058	{
	2059	$cache_data = $sql_arr['data'];
	2060	$this->cache_keys[$key] = $sql_arr['cache_id'];
	2061	}
	2062	}
	2063
6d969b	2064	return $cache_data;
1cded8	2065	}
T	2066
6d969b	2067	/**
T	2068	* @access private
	2069	*/
1cded8	2070	function _write_cache_record($key, $data)
T	2071	{
	2072	if (!$this->db)
	2073	return FALSE;
	2074
	2075	// check if we already have a cache entry for this key
	2076	if (!isset($this->cache_keys[$key]))
	2077	{
	2078	$sql_result = $this->db->query(
	2079	"SELECT cache_id
	2080	FROM ".get_table_name('cache')."
	2081	WHERE user_id=?
	2082	AND cache_key=?",
	2083	$_SESSION['user_id'],
	2084	$key);
	2085
	2086	if ($sql_arr = $this->db->fetch_assoc($sql_result))
	2087	$this->cache_keys[$key] = $sql_arr['cache_id'];
	2088	else
	2089	$this->cache_keys[$key] = FALSE;
	2090	}
	2091
	2092	// update existing cache record
	2093	if ($this->cache_keys[$key])
	2094	{
	2095	$this->db->query(
	2096	"UPDATE ".get_table_name('cache')."
107bde	2097	SET created=".$this->db->now().",
1cded8	2098	data=?
T	2099	WHERE user_id=?
	2100	AND cache_key=?",
	2101	$data,
	2102	$_SESSION['user_id'],
	2103	$key);
	2104	}
	2105	// add new cache record
	2106	else
	2107	{
	2108	$this->db->query(
	2109	"INSERT INTO ".get_table_name('cache')."
	2110	(created, user_id, cache_key, data)
107bde	2111	VALUES (".$this->db->now().", ?, ?, ?)",
1cded8	2112	$_SESSION['user_id'],
T	2113	$key,
	2114	$data);
	2115	}
	2116	}
	2117
6d969b	2118	/**
T	2119	* @access private
	2120	*/
1cded8	2121	function _clear_cache_record($key)
T	2122	{
	2123	$this->db->query(
	2124	"DELETE FROM ".get_table_name('cache')."
	2125	WHERE user_id=?
	2126	AND cache_key=?",
	2127	$_SESSION['user_id'],
	2128	$key);
	2129	}
	2130
	2131
	2132
4e17e6	2133	/* --------------------------------
1cded8	2134	* message caching methods
T	2135	* --------------------------------*/
	2136
	2137
6d969b	2138	/**
T	2139	* Checks if the cache is up-to-date
	2140	*
	2141	* @param string Mailbox name
	2142	* @param string Internal cache key
	2143	* @return int -3 = off, -2 = incomplete, -1 = dirty
	2144	*/
1cded8	2145	function check_cache_status($mailbox, $cache_key)
T	2146	{
	2147	if (!$this->caching_enabled)
	2148	return -3;
	2149
	2150	$cache_index = $this->get_message_cache_index($cache_key, TRUE);
	2151	$msg_count = $this->_messagecount($mailbox);
	2152	$cache_count = count($cache_index);
	2153
	2154	// console("Cache check: $msg_count !== ".count($cache_index));
	2155
	2156	if ($cache_count==$msg_count)
	2157	{
	2158	// get highest index
	2159	$header = iil_C_FetchHeader($this->conn, $mailbox, "$msg_count");
	2160	$cache_uid = array_pop($cache_index);
	2161
e6f360	2162	// uids of highest message matches -> cache seems OK
1cded8	2163	if ($cache_uid == $header->uid)
T	2164	return 1;
	2165
	2166	// cache is dirty
	2167	return -1;
	2168	}
e6f360	2169	// if cache count differs less than 10% report as dirty
1cded8	2170	else if (abs($msg_count - $cache_count) < $msg_count/10)
T	2171	return -1;
	2172	else
	2173	return -2;
	2174	}
	2175
6d969b	2176	/**
T	2177	* @access private
	2178	*/
1cded8	2179	function get_message_cache($key, $from, $to, $sort_field, $sort_order)
T	2180	{
	2181	$cache_key = "$key:$from:$to:$sort_field:$sort_order";
	2182	$db_header_fields = array('idx', 'uid', 'subject', 'from', 'to', 'cc', 'date', 'size');
	2183
	2184	if (!in_array($sort_field, $db_header_fields))
	2185	$sort_field = 'idx';
	2186
	2187	if ($this->caching_enabled && !isset($this->cache[$cache_key]))
	2188	{
	2189	$this->cache[$cache_key] = array();
	2190	$sql_result = $this->db->limitquery(
	2191	"SELECT idx, uid, headers
	2192	FROM ".get_table_name('messages')."
	2193	WHERE user_id=?
	2194	AND cache_key=?
	2195	ORDER BY ".$this->db->quoteIdentifier($sort_field)." ".
	2196	strtoupper($sort_order),
	2197	$from,
	2198	$to-$from,
	2199	$_SESSION['user_id'],
	2200	$key);
	2201
	2202	while ($sql_arr = $this->db->fetch_assoc($sql_result))
	2203	{
	2204	$uid = $sql_arr['uid'];
	2205	$this->cache[$cache_key][$uid] = unserialize($sql_arr['headers']);
ecd2e7	2206
T	2207	// featch headers if unserialize failed
	2208	if (empty($this->cache[$cache_key][$uid]))
	2209	$this->cache[$cache_key][$uid] = iil_C_FetchHeader($this->conn, preg_replace('/.msg$/', '', $key), $uid, true);
1cded8	2210	}
T	2211	}
	2212
	2213	return $this->cache[$cache_key];
	2214	}
	2215
6d969b	2216	/**
T	2217	* @access private
	2218	*/
f7bfec	2219	function &get_cached_message($key, $uid, $struct=false)
1cded8	2220	{
T	2221	$internal_key = '__single_msg';
017def	2222
f7bfec	2223	if ($this->caching_enabled && (!isset($this->cache[$internal_key][$uid]) \|\|
T	2224	($struct && empty($this->cache[$internal_key][$uid]->structure))))
1cded8	2225	{
f7bfec	2226	$sql_select = "idx, uid, headers" . ($struct ? ", structure" : '');
1cded8	2227	$sql_result = $this->db->query(
T	2228	"SELECT $sql_select
	2229	FROM ".get_table_name('messages')."
	2230	WHERE user_id=?
	2231	AND cache_key=?
	2232	AND uid=?",
	2233	$_SESSION['user_id'],
	2234	$key,
	2235	$uid);
f7bfec	2236
1cded8	2237	if ($sql_arr = $this->db->fetch_assoc($sql_result))
T	2238	{
f7bfec	2239	$this->cache[$internal_key][$uid] = unserialize($sql_arr['headers']);
T	2240	if (is_object($this->cache[$internal_key][$uid]) && !empty($sql_arr['structure']))
	2241	$this->cache[$internal_key][$uid]->structure = unserialize($sql_arr['structure']);
1cded8	2242	}
T	2243	}
	2244
	2245	return $this->cache[$internal_key][$uid];
	2246	}
	2247
6d969b	2248	/**
T	2249	* @access private
	2250	*/
0677ca	2251	function get_message_cache_index($key, $force=FALSE, $sort_col='idx', $sort_order='ASC')
1cded8	2252	{
T	2253	static $sa_message_index = array();
	2254
4647e1	2255	// empty key -> empty array
ffb0b0	2256	if (!$this->caching_enabled \|\| empty($key))
4647e1	2257	return array();
T	2258
1cded8	2259	if (!empty($sa_message_index[$key]) && !$force)
T	2260	return $sa_message_index[$key];
	2261
	2262	$sa_message_index[$key] = array();
	2263	$sql_result = $this->db->query(
	2264	"SELECT idx, uid
	2265	FROM ".get_table_name('messages')."
	2266	WHERE user_id=?
	2267	AND cache_key=?
0677ca	2268	ORDER BY ".$this->db->quote_identifier($sort_col)." ".$sort_order,
1cded8	2269	$_SESSION['user_id'],
T	2270	$key);
	2271
	2272	while ($sql_arr = $this->db->fetch_assoc($sql_result))
	2273	$sa_message_index[$key][$sql_arr['idx']] = $sql_arr['uid'];
	2274
	2275	return $sa_message_index[$key];
	2276	}
	2277
6d969b	2278	/**
T	2279	* @access private
	2280	*/
f7bfec	2281	function add_message_cache($key, $index, $headers, $struct=null)
1cded8	2282	{
017def	2283	if (empty($key) \|\| !is_object($headers) \|\| empty($headers->uid))
T	2284	return;
	2285
	2286	// add to internal (fast) cache
	2287	$this->cache['__single_msg'][$headers->uid] = $headers;
	2288	$this->cache['__single_msg'][$headers->uid]->structure = $struct;
	2289
	2290	// no further caching
	2291	if (!$this->caching_enabled)
31b2ce	2292	return;
017def	2293
f7bfec	2294	// check for an existing record (probly headers are cached but structure not)
T	2295	$sql_result = $this->db->query(
	2296	"SELECT message_id
	2297	FROM ".get_table_name('messages')."
	2298	WHERE user_id=?
	2299	AND cache_key=?
	2300	AND uid=?
	2301	AND del<>1",
	2302	$_SESSION['user_id'],
	2303	$key,
	2304	$headers->uid);
31b2ce	2305
f7bfec	2306	// update cache record
T	2307	if ($sql_arr = $this->db->fetch_assoc($sql_result))
	2308	{
	2309	$this->db->query(
	2310	"UPDATE ".get_table_name('messages')."
	2311	SET idx=?, headers=?, structure=?
	2312	WHERE message_id=?",
	2313	$index,
	2314	serialize($headers),
	2315	is_object($struct) ? serialize($struct) : NULL,
	2316	$sql_arr['message_id']
	2317	);
	2318	}
	2319	else // insert new record
	2320	{
	2321	$this->db->query(
	2322	"INSERT INTO ".get_table_name('messages')."
	2323	(user_id, del, cache_key, created, idx, uid, subject, ".$this->db->quoteIdentifier('from').", ".$this->db->quoteIdentifier('to').", cc, date, size, headers, structure)
107bde	2324	VALUES (?, 0, ?, ".$this->db->now().", ?, ?, ?, ?, ?, ?, ".$this->db->fromunixtime($headers->timestamp).", ?, ?, ?)",
f7bfec	2325	$_SESSION['user_id'],
T	2326	$key,
	2327	$index,
	2328	$headers->uid,
	2329	(string)substr($this->decode_header($headers->subject, TRUE), 0, 128),
	2330	(string)substr($this->decode_header($headers->from, TRUE), 0, 128),
	2331	(string)substr($this->decode_header($headers->to, TRUE), 0, 128),
	2332	(string)substr($this->decode_header($headers->cc, TRUE), 0, 128),
	2333	(int)$headers->size,
	2334	serialize($headers),
	2335	is_object($struct) ? serialize($struct) : NULL
	2336	);
	2337	}
1cded8	2338	}
T	2339
6d969b	2340	/**
T	2341	* @access private
	2342	*/
1cded8	2343	function remove_message_cache($key, $index)
T	2344	{
780527	2345	if (!$this->caching_enabled)
T	2346	return;
	2347
1cded8	2348	$this->db->query(
T	2349	"DELETE FROM ".get_table_name('messages')."
	2350	WHERE user_id=?
	2351	AND cache_key=?
	2352	AND idx=?",
	2353	$_SESSION['user_id'],
	2354	$key,
	2355	$index);
	2356	}
	2357
6d969b	2358	/**
T	2359	* @access private
	2360	*/
1cded8	2361	function clear_message_cache($key, $start_index=1)
T	2362	{
780527	2363	if (!$this->caching_enabled)
T	2364	return;
	2365
1cded8	2366	$this->db->query(
T	2367	"DELETE FROM ".get_table_name('messages')."
	2368	WHERE user_id=?
	2369	AND cache_key=?
	2370	AND idx>=?",
	2371	$_SESSION['user_id'],
	2372	$key,
	2373	$start_index);
	2374	}
	2375
	2376
	2377
	2378
	2379	/* --------------------------------
	2380	* encoding/decoding methods
4e17e6	2381	* --------------------------------*/
T	2382
6d969b	2383	/**
T	2384	* Split an address list into a structured array list
	2385	*
	2386	* @param string Input string
	2387	* @param int List only this number of addresses
	2388	* @param boolean Decode address strings
	2389	* @return array Indexed list of addresses
	2390	*/
f11541	2391	function decode_address_list($input, $max=null, $decode=true)
4e17e6	2392	{
f11541	2393	$a = $this->_parse_address_list($input, $decode);
4e17e6	2394	$out = array();
0c6f4b	2395	// Special chars as defined by RFC 822 need to in quoted string (or escaped).
T	2396	$special_chars = '[\<\>\\\.\[\]@,;:"]';
41fa0b	2397
4e17e6	2398	if (!is_array($a))
T	2399	return $out;
	2400
	2401	$c = count($a);
	2402	$j = 0;
	2403
	2404	foreach ($a as $val)
	2405	{
	2406	$j++;
	2407	$address = $val['address'];
	2408	$name = preg_replace(array('/^[\'"]/', '/[\'"]$/'), '', trim($val['name']));
3cf664	2409	if ($name && $address && $name != $address)
0c6f4b	2410	$string = sprintf('%s <%s>', preg_match("/$special_chars/", $name) ? '"'.addcslashes($name, '"').'"' : $name, $address);
3cf664	2411	else if ($address)
T	2412	$string = $address;
	2413	else if ($name)
	2414	$string = $name;
4e17e6	2415
T	2416	$out[$j] = array('name' => $name,
	2417	'mailto' => $address,
	2418	'string' => $string);
	2419
	2420	if ($max && $j==$max)
	2421	break;
	2422	}
	2423
	2424	return $out;
	2425	}
	2426
	2427
6d969b	2428	/**
T	2429	* Decode a message header value
	2430	*
	2431	* @param string Header value
	2432	* @param boolean Remove quotes if necessary
	2433	* @return string Decoded string
	2434	*/
1cded8	2435	function decode_header($input, $remove_quotes=FALSE)
4e17e6	2436	{
17b5fb	2437	$str = rcube_imap::decode_mime_string((string)$input, $this->default_charset);
1cded8	2438	if ($str{0}=='"' && $remove_quotes)
T	2439	$str = str_replace('"', '', $str);
	2440
	2441	return $str;
4b0f65	2442	}
ba8f44	2443
T	2444
	2445	/**
	2446	* Decode a mime-encoded string to internal charset
	2447	*
6d969b	2448	* @param string Header value
T	2449	* @param string Fallback charset if none specified
	2450	* @return string Decoded string
	2451	* @static
ba8f44	2452	*/
f11541	2453	function decode_mime_string($input, $fallback=null)
4b0f65	2454	{
2e6825	2455	// Initialize variable
4e17e6	2456	$out = '';
T	2457
2e6825	2458	// Iterate instead of recursing, this way if there are too many values we don't have stack overflows
T	2459	// rfc: all line breaks or other characters not found
	2460	// in the Base64 Alphabet must be ignored by decoding software
	2461	// delete all blanks between MIME-lines, differently we can
	2462	// receive unnecessary blanks and broken utf-8 symbols
	2463	$input = preg_replace("/\?=\s+=\?/", '?==?', $input);
9e60d4	2464
2e6825	2465	// Check if there is stuff to decode
T	2466	if (strpos($input, '=?') !== false) {
	2467	// Loop through the string to decode all occurences of =? ?= into the variable $out
	2468	while(($pos = strpos($input, '=?')) !== false) {
	2469	// Append everything that is before the text to be decoded
	2470	$out .= substr($input, 0, $pos);
4e17e6	2471
2e6825	2472	// Get the location of the text to decode
T	2473	$end_cs_pos = strpos($input, "?", $pos+2);
	2474	$end_en_pos = strpos($input, "?", $end_cs_pos+1);
	2475	$end_pos = strpos($input, "?=", $end_en_pos+1);
4e17e6	2476
2e6825	2477	// Extract the encoded string
T	2478	$encstr = substr($input, $pos+2, ($end_pos-$pos-2));
	2479	// Extract the remaining string
	2480	$input = substr($input, $end_pos+2);
	2481
	2482	// Decode the string fragement
	2483	$out .= rcube_imap::_decode_mime_string_part($encstr);
4e17e6	2484	}
399835	2485
2e6825	2486	// Deocde the rest (if any)
T	2487	if (strlen($input) != 0)
	2488	$out .= rcube_imap::decode_mime_string($input, $fallback);
	2489
	2490	// return the results
	2491	return $out;
	2492	}
	2493
f11541	2494	// no encoding information, use fallback
399835	2495	return rcube_charset_convert($input,
b026c3	2496	!empty($fallback) ? $fallback : rcmail::get_instance()->config->get('default_charset', 'ISO-8859-1'));
4e17e6	2497	}
T	2498
	2499
ba8f44	2500	/**
T	2501	* Decode a part of a mime-encoded string
	2502	*
6d969b	2503	* @access private
ba8f44	2504	*/
4b0f65	2505	function _decode_mime_string_part($str)
4e17e6	2506	{
T	2507	$a = explode('?', $str);
	2508	$count = count($a);
	2509
	2510	// should be in format "charset?encoding?base64_string"
	2511	if ($count >= 3)
	2512	{
	2513	for ($i=2; $i<$count; $i++)
	2514	$rest.=$a[$i];
	2515
	2516	if (($a[1]=="B")\|\|($a[1]=="b"))
	2517	$rest = base64_decode($rest);
	2518	else if (($a[1]=="Q")\|\|($a[1]=="q"))
	2519	{
	2520	$rest = str_replace("_", " ", $rest);
	2521	$rest = quoted_printable_decode($rest);
	2522	}
	2523
3f9edb	2524	return rcube_charset_convert($rest, $a[0]);
4e17e6	2525	}
T	2526	else
3f9edb	2527	return $str; // we dont' know what to do with this
4e17e6	2528	}
T	2529
	2530
6d969b	2531	/**
T	2532	* Decode a mime part
	2533	*
	2534	* @param string Input string
	2535	* @param string Part encoding
	2536	* @return string Decoded string
	2537	* @access private
	2538	*/
4e17e6	2539	function mime_decode($input, $encoding='7bit')
T	2540	{
	2541	switch (strtolower($encoding))
	2542	{
	2543	case '7bit':
	2544	return $input;
	2545	break;
	2546
	2547	case 'quoted-printable':
	2548	return quoted_printable_decode($input);
	2549	break;
	2550
	2551	case 'base64':
	2552	return base64_decode($input);
	2553	break;
	2554
	2555	default:
	2556	return $input;
	2557	}
	2558	}
	2559
	2560
6d969b	2561	/**
T	2562	* Convert body charset to UTF-8 according to the ctype_parameters
	2563	*
	2564	* @param string Part body to decode
	2565	* @param string Charset to convert from
	2566	* @return string Content converted to internal charset
	2567	*/
4e17e6	2568	function charset_decode($body, $ctype_param)
T	2569	{
a95e0e	2570	if (is_array($ctype_param) && !empty($ctype_param['charset']))
3f9edb	2571	return rcube_charset_convert($body, $ctype_param['charset']);
4e17e6	2572
fb5f4f	2573	// defaults to what is specified in the class header
17b5fb	2574	return rcube_charset_convert($body, $this->default_charset);
4e17e6	2575	}
T	2576
	2577
6d969b	2578	/**
T	2579	* Translate UID to message ID
	2580	*
	2581	* @param int Message UID
	2582	* @param string Mailbox name
	2583	* @return int Message ID
	2584	*/
	2585	function get_id($uid, $mbox_name=NULL)
	2586	{
	2587	$mailbox = $mbox_name ? $this->_mod_mailbox($mbox_name) : $this->mailbox;
	2588	return $this->_uid2id($uid, $mailbox);
	2589	}
	2590
	2591
	2592	/**
	2593	* Translate message number to UID
	2594	*
	2595	* @param int Message ID
	2596	* @param string Mailbox name
	2597	* @return int Message UID
	2598	*/
	2599	function get_uid($id,$mbox_name=NULL)
	2600	{
	2601	$mailbox = $mbox_name ? $this->_mod_mailbox($mbox_name) : $this->mailbox;
	2602	return $this->_id2uid($id, $mailbox);
	2603	}
	2604
1cded8	2605
ba8f44	2606
4e17e6	2607	/* --------------------------------
T	2608	* private methods
	2609	* --------------------------------*/
	2610
	2611
6d969b	2612	/**
T	2613	* @access private
	2614	*/
aadfa1	2615	function _mod_mailbox($mbox_name, $mode='in')
4e17e6	2616	{
ae4d74	2617	if ((!empty($this->root_ns) && $this->root_ns == $mbox_name) \|\| $mbox_name == 'INBOX')
aadfa1	2618	return $mbox_name;
7902df	2619
f619de	2620	if (!empty($this->root_dir) && $mode=='in')
aadfa1	2621	$mbox_name = $this->root_dir.$this->delimiter.$mbox_name;
7902df	2622	else if (strlen($this->root_dir) && $mode=='out')
aadfa1	2623	$mbox_name = substr($mbox_name, strlen($this->root_dir)+1);
4e17e6	2624
aadfa1	2625	return $mbox_name;
4e17e6	2626	}
T	2627
d5342a	2628	/**
T	2629	* Validate the given input and save to local properties
	2630	* @access private
	2631	*/
	2632	function _set_sort_order($sort_field, $sort_order)
	2633	{
	2634	if ($sort_field != null)
	2635	$this->sort_field = asciiwords($sort_field);
	2636	if ($sort_order != null)
	2637	$this->sort_order = strtoupper($sort_order) == 'DESC' ? 'DESC' : 'ASC';
	2638	}
4e17e6	2639
6d969b	2640	/**
T	2641	* Sort mailboxes first by default folders and then in alphabethical order
	2642	* @access private
	2643	*/
4e17e6	2644	function _sort_mailbox_list($a_folders)
T	2645	{
ea400e	2646	$a_out = $a_defaults = $folders = array();
681a59	2647
A	2648	$delimiter = $this->get_hierarchy_delimiter();
4e17e6	2649
T	2650	// find default folders and skip folders starting with '.'
681a59	2651	foreach ($a_folders as $i => $folder)
4e17e6	2652	{
T	2653	if ($folder{0}=='.')
6d969b	2654	continue;
fa4cd2	2655
c007e6	2656	if (($p = array_search(strtolower($folder), $this->default_folders_lc)) !== false && !$a_defaults[$p])
6d969b	2657	$a_defaults[$p] = $folder;
4e17e6	2658	else
70aa90	2659	$folders[$folder] = rc_strtolower(rcube_charset_convert($folder, 'UTF-7'));
681a59	2660	}
A	2661
	2662	asort($folders, SORT_LOCALE_STRING);
	2663	ksort($a_defaults);
	2664
	2665	$folders = array_merge($a_defaults, array_keys($folders));
	2666
	2667	// finally we must rebuild the list to move
f219a2	2668	// subfolders of default folders to their place...
A	2669	// ...also do this for the rest of folders because
	2670	// asort() is not properly sorting case sensitive names
681a59	2671	while (list($key, $folder) = each($folders)) {
A	2672	$a_out[] = $folder;
	2673	unset($folders[$key]);
f219a2	2674	foreach ($folders as $idx => $f) {
A	2675	if (strpos($f, $folder.$delimiter) === 0) {
	2676	$a_out[] = $f;
	2677	unset($folders[$idx]);
681a59	2678	}
f219a2	2679	}
A	2680	reset($folders);
4e17e6	2681	}
T	2682
681a59	2683	return $a_out;
4e17e6	2684	}
T	2685
6d969b	2686	/**
T	2687	* @access private
	2688	*/
aadfa1	2689	function _uid2id($uid, $mbox_name=NULL)
4e17e6	2690	{
aadfa1	2691	if (!$mbox_name)
S	2692	$mbox_name = $this->mailbox;
4e17e6	2693
aadfa1	2694	if (!isset($this->uid_id_map[$mbox_name][$uid]))
S	2695	$this->uid_id_map[$mbox_name][$uid] = iil_C_UID2ID($this->conn, $mbox_name, $uid);
4e17e6	2696
aadfa1	2697	return $this->uid_id_map[$mbox_name][$uid];
4e17e6	2698	}
T	2699
6d969b	2700	/**
T	2701	* @access private
	2702	*/
aadfa1	2703	function _id2uid($id, $mbox_name=NULL)
e6f360	2704	{
aadfa1	2705	if (!$mbox_name)
S	2706	$mbox_name = $this->mailbox;
e6f360	2707
1fb2c8	2708	$index = array_flip((array)$this->uid_id_map[$mbox_name]);
017def	2709	if (isset($index[$id]))
T	2710	$uid = $index[$id];
	2711	else
	2712	{
	2713	$uid = iil_C_ID2UID($this->conn, $mbox_name, $id);
	2714	$this->uid_id_map[$mbox_name][$uid] = $id;
	2715	}
	2716
	2717	return $uid;
1cded8	2718	}
T	2719
	2720
6d969b	2721	/**
T	2722	* Subscribe/unsubscribe a list of mailboxes and update local cache
	2723	* @access private
	2724	*/
4e17e6	2725	function _change_subscription($a_mboxes, $mode)
T	2726	{
	2727	$updated = FALSE;
	2728
	2729	if (is_array($a_mboxes))
aadfa1	2730	foreach ($a_mboxes as $i => $mbox_name)
4e17e6	2731	{
aadfa1	2732	$mailbox = $this->_mod_mailbox($mbox_name);
4e17e6	2733	$a_mboxes[$i] = $mailbox;
T	2734
	2735	if ($mode=='subscribe')
	2736	$result = iil_C_Subscribe($this->conn, $mailbox);
	2737	else if ($mode=='unsubscribe')
	2738	$result = iil_C_UnSubscribe($this->conn, $mailbox);
	2739
	2740	if ($result>=0)
	2741	$updated = TRUE;
	2742	}
	2743
	2744	// get cached mailbox list
	2745	if ($updated)
	2746	{
	2747	$a_mailbox_cache = $this->get_cache('mailboxes');
	2748	if (!is_array($a_mailbox_cache))
	2749	return $updated;
	2750
	2751	// modify cached list
	2752	if ($mode=='subscribe')
	2753	$a_mailbox_cache = array_merge($a_mailbox_cache, $a_mboxes);
	2754	else if ($mode=='unsubscribe')
	2755	$a_mailbox_cache = array_diff($a_mailbox_cache, $a_mboxes);
	2756
	2757	// write mailboxlist to cache
	2758	$this->update_cache('mailboxes', $this->_sort_mailbox_list($a_mailbox_cache));
	2759	}
	2760
	2761	return $updated;
	2762	}
	2763
	2764
6d969b	2765	/**
T	2766	* Increde/decrese messagecount for a specific mailbox
	2767	* @access private
	2768	*/
aadfa1	2769	function _set_messagecount($mbox_name, $mode, $increment)
4e17e6	2770	{
T	2771	$a_mailbox_cache = FALSE;
aadfa1	2772	$mailbox = $mbox_name ? $mbox_name : $this->mailbox;
4e17e6	2773	$mode = strtoupper($mode);
T	2774
	2775	$a_mailbox_cache = $this->get_cache('messagecount');
	2776
	2777	if (!is_array($a_mailbox_cache[$mailbox]) \|\| !isset($a_mailbox_cache[$mailbox][$mode]) \|\| !is_numeric($increment))
	2778	return FALSE;
	2779
	2780	// add incremental value to messagecount
	2781	$a_mailbox_cache[$mailbox][$mode] += $increment;
31b2ce	2782
T	2783	// there's something wrong, delete from cache
	2784	if ($a_mailbox_cache[$mailbox][$mode] < 0)
	2785	unset($a_mailbox_cache[$mailbox][$mode]);
4e17e6	2786
T	2787	// write back to cache
	2788	$this->update_cache('messagecount', $a_mailbox_cache);
	2789
	2790	return TRUE;
	2791	}
	2792
	2793
6d969b	2794	/**
T	2795	* Remove messagecount of a specific mailbox from cache
	2796	* @access private
	2797	*/
aadfa1	2798	function _clear_messagecount($mbox_name='')
4e17e6	2799	{
T	2800	$a_mailbox_cache = FALSE;
aadfa1	2801	$mailbox = $mbox_name ? $mbox_name : $this->mailbox;
4e17e6	2802
T	2803	$a_mailbox_cache = $this->get_cache('messagecount');
	2804
	2805	if (is_array($a_mailbox_cache[$mailbox]))
	2806	{
	2807	unset($a_mailbox_cache[$mailbox]);
	2808	$this->update_cache('messagecount', $a_mailbox_cache);
	2809	}
	2810	}
	2811
	2812
6d969b	2813	/**
T	2814	* Split RFC822 header string into an associative array
	2815	* @access private
	2816	*/
8d4bcd	2817	function _parse_headers($headers)
T	2818	{
	2819	$a_headers = array();
	2820	$lines = explode("\n", $headers);
	2821	$c = count($lines);
	2822	for ($i=0; $i<$c; $i++)
	2823	{
	2824	if ($p = strpos($lines[$i], ': '))
	2825	{
	2826	$field = strtolower(substr($lines[$i], 0, $p));
	2827	$value = trim(substr($lines[$i], $p+1));
	2828	if (!empty($value))
	2829	$a_headers[$field] = $value;
	2830	}
	2831	}
	2832
	2833	return $a_headers;
	2834	}
	2835
	2836
6d969b	2837	/**
T	2838	* @access private
	2839	*/
f11541	2840	function _parse_address_list($str, $decode=true)
4e17e6	2841	{
d04d20	2842	// remove any newlines and carriage returns before
5a6ad2	2843	$a = $this->_explode_quoted_string('[,;]', preg_replace( "/[\r\n]/", " ", $str));
4e17e6	2844	$result = array();
41fa0b	2845
4e17e6	2846	foreach ($a as $key => $val)
T	2847	{
568ba3	2848	$val = preg_replace("/([\"\w])</", "$1 <", $val);
f11541	2849	$sub_a = $this->_explode_quoted_string(' ', $decode ? $this->decode_header($val) : $val);
41fa0b	2850	$result[$key]['name'] = '';
T	2851
4e17e6	2852	foreach ($sub_a as $k => $v)
T	2853	{
3cf664	2854	if (strpos($v, '@') > 0)
4e17e6	2855	$result[$key]['address'] = str_replace('<', '', str_replace('>', '', $v));
T	2856	else
	2857	$result[$key]['name'] .= (empty($result[$key]['name'])?'':' ').str_replace("\"",'',stripslashes($v));
	2858	}
	2859
	2860	if (empty($result[$key]['name']))
41fa0b	2861	$result[$key]['name'] = $result[$key]['address'];
4e17e6	2862	}
T	2863
	2864	return $result;
	2865	}
	2866
	2867
6d969b	2868	/**
T	2869	* @access private
	2870	*/
4e17e6	2871	function _explode_quoted_string($delimiter, $string)
T	2872	{
5a6ad2	2873	$result = array();
T	2874	$strlen = strlen($string);
	2875	for ($q=$p=$i=0; $i < $strlen; $i++)
	2876	{
	2877	if ($string{$i} == "\"" && $string{$i-1} != "\\")
	2878	$q = $q ? false : true;
	2879	else if (!$q && preg_match("/$delimiter/", $string{$i}))
	2880	{
	2881	$result[] = substr($string, $p, $i - $p);
	2882	$p = $i + 1;
	2883	}
	2884	}
4e17e6	2885
5a6ad2	2886	$result[] = substr($string, $p);
4e17e6	2887	return $result;
T	2888	}
6d969b	2889
T	2890	} // end class rcube_imap
4e17e6	2891
8d4bcd	2892
T	2893	/**
	2894	* Class representing a message part
6d969b	2895	*
T	2896	* @package Mail
8d4bcd	2897	*/
T	2898	class rcube_message_part
	2899	{
	2900	var $mime_id = '';
	2901	var $ctype_primary = 'text';
	2902	var $ctype_secondary = 'plain';
	2903	var $mimetype = 'text/plain';
	2904	var $disposition = '';
5cc4b1	2905	var $filename = '';
8d4bcd	2906	var $encoding = '8bit';
T	2907	var $charset = '';
	2908	var $size = 0;
	2909	var $headers = array();
	2910	var $d_parameters = array();
	2911	var $ctype_parameters = array();
	2912
	2913	}
4e17e6	2914
T	2915
7e93ff	2916	/**
T	2917	* Class for sorting an array of iilBasicHeader objects in a predetermined order.
	2918	*
6d969b	2919	* @package Mail
7e93ff	2920	* @author Eric Stadtherr
T	2921	*/
	2922	class rcube_header_sorter
	2923	{
	2924	var $sequence_numbers = array();
	2925
	2926	/**
6d969b	2927	* Set the predetermined sort order.
7e93ff	2928	*
6d969b	2929	* @param array Numerically indexed array of IMAP message sequence numbers
7e93ff	2930	*/
T	2931	function set_sequence_numbers($seqnums)
	2932	{
05d180	2933	$this->sequence_numbers = array_flip($seqnums);
7e93ff	2934	}
T	2935
	2936	/**
6d969b	2937	* Sort the array of header objects
7e93ff	2938	*
6d969b	2939	* @param array Array of iilBasicHeader objects indexed by UID
7e93ff	2940	*/
T	2941	function sort_headers(&$headers)
	2942	{
	2943	/*
	2944	* uksort would work if the keys were the sequence number, but unfortunately
	2945	* the keys are the UIDs. We'll use uasort instead and dereference the value
	2946	* to get the sequence number (in the "id" field).
	2947	*
	2948	* uksort($headers, array($this, "compare_seqnums"));
	2949	*/
	2950	uasort($headers, array($this, "compare_seqnums"));
	2951	}
	2952
	2953	/**
	2954	* Sort method called by uasort()
	2955	*/
	2956	function compare_seqnums($a, $b)
	2957	{
	2958	// First get the sequence number from the header object (the 'id' field).
	2959	$seqa = $a->id;
	2960	$seqb = $b->id;
	2961
	2962	// then find each sequence number in my ordered list
05d180	2963	$posa = isset($this->sequence_numbers[$seqa]) ? intval($this->sequence_numbers[$seqa]) : -1;
T	2964	$posb = isset($this->sequence_numbers[$seqb]) ? intval($this->sequence_numbers[$seqb]) : -1;
7e93ff	2965
T	2966	// return the relative position as the comparison value
05d180	2967	return $posa - $posb;
7e93ff	2968	}
T	2969	}
4e17e6	2970
T	2971
7e93ff	2972	/**
T	2973	* Add quoted-printable encoding to a given string
	2974	*
6d969b	2975	* @param string String to encode
T	2976	* @param int Add new line after this number of characters
	2977	* @param boolean True if spaces should be converted into =20
	2978	* @return string Encoded string
7e93ff	2979	*/
T	2980	function quoted_printable_encode($input, $line_max=76, $space_conv=false)
4e17e6	2981	{
T	2982	$hex = array('0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F');
	2983	$lines = preg_split("/(?:\r\n\|\r\|\n)/", $input);
	2984	$eol = "\r\n";
	2985	$escape = "=";
	2986	$output = "";
	2987
	2988	while( list(, $line) = each($lines))
	2989	{
	2990	//$line = rtrim($line); // remove trailing white space -> no =20\r\n necessary
	2991	$linlen = strlen($line);
	2992	$newline = "";
	2993	for($i = 0; $i < $linlen; $i++)
	2994	{
	2995	$c = substr( $line, $i, 1 );
	2996	$dec = ord( $c );
	2997	if ( ( $i == 0 ) && ( $dec == 46 ) ) // convert first point in the line into =2E
	2998	{
	2999	$c = "=2E";
	3000	}
	3001	if ( $dec == 32 )
	3002	{
	3003	if ( $i == ( $linlen - 1 ) ) // convert space at eol only
	3004	{
	3005	$c = "=20";
	3006	}
	3007	else if ( $space_conv )
	3008	{
	3009	$c = "=20";
	3010	}
	3011	}
	3012	else if ( ($dec == 61) \|\| ($dec < 32 ) \|\| ($dec > 126) ) // always encode "\t", which is not required
	3013	{
	3014	$h2 = floor($dec/16);
	3015	$h1 = floor($dec%16);
	3016	$c = $escape.$hex["$h2"].$hex["$h1"];
	3017	}
	3018
	3019	if ( (strlen($newline) + strlen($c)) >= $line_max ) // CRLF is not counted
	3020	{
	3021	$output .= $newline.$escape.$eol; // soft line break; " =\r\n" is okay
	3022	$newline = "";
	3023	// check if newline first character will be point or not
	3024	if ( $dec == 46 )
	3025	{
	3026	$c = "=2E";
	3027	}
	3028	}
	3029	$newline .= $c;
	3030	} // end of for
	3031	$output .= $newline.$eol;
	3032	} // end of while
	3033
	3034	return trim($output);
	3035	}
	3036
8d4bcd	3037