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thomascube

2008-09-19 42e328a85f5880e3e767eebaaa88b55a2b49d2ff

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 $headers;
4e17e6	1012	}
T	1013
	1014
8d4bcd	1015	/**
T	1016	* Fetch body structure from the IMAP server and build
	1017	* an object structure similar to the one generated by PEAR::Mail_mimeDecode
	1018	*
6d969b	1019	* @param int Message UID to fetch
T	1020	* @return object stdClass Message part tree or False on failure
8d4bcd	1021	*/
T	1022	function &get_structure($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	}
5cc4b1	1060
T	1061	return $struct;
	1062	}
4e17e6	1063
8d4bcd	1064
T	1065	/**
	1066	* Build message part object
	1067	*
	1068	* @access private
	1069	*/
	1070	function &_structure_part($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->ctype_parameters['name']))
	1186	$filename_mime = $part->ctype_parameters['name'];
	1187	else if (!empty($part->d_parameters['filename*']))
	1188	$filename_encoded = $part->d_parameters['filename*'];
	1189	else if (!empty($part->ctype_parameters['name*']))
	1190	$filename_encoded = $part->ctype_parameters['name*'];
	1191	// RFC2231 value continuations
	1192	// TODO: this should be rewrited to support RFC2231 4.1 combinations
	1193	else if (!empty($part->d_parameters['filename*0'])) {
	1194	$i = 0;
	1195	while (isset($part->d_parameters['filename*'.$i])) {
	1196	$i++;
	1197	$filename_mime .= $part->d_parameters['filename*'.$i];
	1198	}
	1199	// some servers (eg. dovecot-1.x) have no support for parameter value continuations
	1200	// we must fetch and parse headers "manually"
20a251	1201	//TODO: fetching headers for a second time is not effecient, this code should be moved somewhere earlier --tensor
5df0ad	1202	if ($i<2) {
A	1203	// TODO: fetch only Content-Type/Content-Disposition header
20a251	1204	$headers = iil_C_FetchPartHeader($this->conn, $this->mailbox, $this->_msg_id, $part->mime_id);
42e328	1205	$filename_mime = '';
T	1206	$i = 0;
	1207	while (preg_match('/filename\'.$i.'\s=\s"([^"\n;]+)[";]*/', $headers, $matches)) {
	1208	$filename_mime .= $matches[1];
	1209	$i++;
	1210	}
5df0ad	1211	}
42e328	1212	}
5df0ad	1213	else if (!empty($part->d_parameters['filename0'])) {
A	1214	$i = 0;
	1215	while (isset($part->d_parameters['filename'.$i.''])) {
	1216	$i++;
42e328	1217	$filename_encoded .= $part->d_parameters['filename'.$i.''];
T	1218	}
5df0ad	1219	if ($i<2) {
20a251	1220	$headers = iil_C_FetchPartHeader($this->conn, $this->mailbox, $this->_msg_id, $part->mime_id);
42e328	1221	$filename_encoded = '';
T	1222	$i = 0; $matches = array();
	1223	while (preg_match('/filename\'.$i.'\\s=\s"([^"\n;]+)[";]/', $headers, $matches)) {
	1224	$filename_encoded .= $matches[1];
	1225	$i++;
	1226	}
5df0ad	1227	}
42e328	1228	}
5df0ad	1229	else if (!empty($part->ctype_parameters['name*0'])) {
A	1230	$i = 0;
	1231	while (isset($part->ctype_parameters['name*'.$i])) {
	1232	$i++;
	1233	$filename_mime .= $part->ctype_parameters['name*'.$i];
42e328	1234	}
5df0ad	1235	if ($i<2) {
20a251	1236	$headers = iil_C_FetchPartHeader($this->conn, $this->mailbox, $this->_msg_id, $part->mime_id);
42e328	1237	$filename_mime = '';
T	1238	$i = 0; $matches = array();
	1239	while (preg_match('/\s+name\'.$i.'\s=\s"([^"\n;]+)[";]*/', $headers, $matches)) {
	1240	$filename_mime .= $matches[1];
	1241	$i++;
	1242	}
5df0ad	1243	}
42e328	1244	}
5df0ad	1245	else if (!empty($part->ctype_parameters['name0'])) {
A	1246	$i = 0;
	1247	while (isset($part->ctype_parameters['name'.$i.''])) {
	1248	$i++;
	1249	$filename_encoded .= $part->ctype_parameters['name'.$i.''];
42e328	1250	}
5df0ad	1251	if ($i<2) {
20a251	1252	$headers = iil_C_FetchPartHeader($this->conn, $this->mailbox, $this->_msg_id, $part->mime_id);
42e328	1253	$filename_encoded = '';
T	1254	$i = 0; $matches = array();
	1255	while (preg_match('/\s+name\'.$i.'\\s=\s"([^"\n;]+)[";]/', $headers, $matches)) {
	1256	$filename_encoded .= $matches[1];
	1257	$i++;
	1258	}
5df0ad	1259	}
42e328	1260	}
5df0ad	1261	// Content-Disposition
A	1262	else if (!empty($part->headers['content-description']))
	1263	$filename_mime = $part->headers['content-description'];
	1264	else
	1265	return;
	1266
	1267	// decode filename
	1268	if (!empty($filename_mime)) {
	1269	$part->filename = rcube_imap::decode_mime_string($filename_mime,
42e328	1270	$part->charset ? $part->charset : rc_detect_encoding($filename_mime, $this->default_charset));
5df0ad	1271	}
A	1272	else if (!empty($filename_encoded)) {
	1273	// decode filename according to RFC 2231, Section 4
	1274	list($filename_charset,, $filename_urlencoded) = split('\'', $filename_encoded);
	1275	$part->filename = rcube_charset_convert(urldecode($filename_urlencoded), $filename_charset);
	1276	}
	1277	}
	1278
8d4bcd	1279
T	1280	/**
	1281	* Fetch message body of a specific message from the server
	1282	*
	1283	* @param int Message UID
	1284	* @param string Part number
6d969b	1285	* @param object rcube_message_part Part object created by get_structure()
8d4bcd	1286	* @param mixed True to print part, ressource to write part contents in
81b573	1287	* @param resource File pointer to save the message part
6d969b	1288	* @return string Message/part body if not printed
8d4bcd	1289	*/
81b573	1290	function &get_message_part($uid, $part=1, $o_part=NULL, $print=NULL, $fp=NULL)
8d4bcd	1291	{
T	1292	if (!($msg_id = $this->_uid2id($uid)))
	1293	return FALSE;
	1294
	1295	// get part encoding if not provided
	1296	if (!is_object($o_part))
	1297	{
	1298	$structure_str = iil_C_FetchStructureString($this->conn, $this->mailbox, $msg_id);
	1299	$structure = iml_GetRawStructureArray($structure_str);
	1300	$part_type = iml_GetPartTypeCode($structure, $part);
	1301	$o_part = new rcube_message_part;
	1302	$o_part->ctype_primary = $part_type==0 ? 'text' : ($part_type==2 ? 'message' : 'other');
	1303	$o_part->encoding = strtolower(iml_GetPartEncodingString($structure, $part));
	1304	$o_part->charset = iml_GetPartCharset($structure, $part);
	1305	}
	1306
	1307	// TODO: Add caching for message parts
	1308
	1309	if ($print)
	1310	{
a9cc52	1311	$mode = $o_part->encoding == 'base64' ? 3 : ($o_part->encoding == 'quoted-printable' ? 1 : 2);
T	1312	$body = iil_C_HandlePartBody($this->conn, $this->mailbox, $msg_id, $part, $mode);
	1313
	1314	// we have to decode the part manually before printing
	1315	if ($mode == 1)
	1316	{
	1317	echo $this->mime_decode($body, $o_part->encoding);
	1318	$body = true;
	1319	}
8d4bcd	1320	}
T	1321	else
	1322	{
81b573	1323	if ($fp && $o_part->encoding == 'base64')
A	1324	return iil_C_HandlePartBody($this->conn, $this->mailbox, $msg_id, $part, 3, $fp);
	1325	else
	1326	$body = iil_C_HandlePartBody($this->conn, $this->mailbox, $msg_id, $part, 1);
8d4bcd	1327
T	1328	// decode part body
a9cc52	1329	if ($o_part->encoding)
8d4bcd	1330	$body = $this->mime_decode($body, $o_part->encoding);
T	1331
	1332	// convert charset (if text or message part)
f7bfec	1333	if ($o_part->ctype_primary=='text' \|\| $o_part->ctype_primary=='message')
T	1334	{
17b5fb	1335	// assume default if no charset specified
f7bfec	1336	if (empty($o_part->charset))
17b5fb	1337	$o_part->charset = $this->default_charset;
f7bfec	1338
8d4bcd	1339	$body = rcube_charset_convert($body, $o_part->charset);
f7bfec	1340	}
81b573	1341
A	1342	if ($fp)
	1343	{
	1344	fwrite($fp, $body);
42e328	1345	return true;
81b573	1346	}
8d4bcd	1347	}
81b573	1348
4e17e6	1349	return $body;
T	1350	}
	1351
	1352
8d4bcd	1353	/**
T	1354	* Fetch message body of a specific message from the server
	1355	*
	1356	* @param int Message UID
6d969b	1357	* @return string Message/part body
T	1358	* @see rcube_imap::get_message_part()
8d4bcd	1359	*/
T	1360	function &get_body($uid, $part=1)
	1361	{
0a9989	1362	$headers = $this->get_headers($uid);
T	1363	return rcube_charset_convert(
	1364	$this->mime_decode($this->get_message_part($uid, $part), 'quoted-printable'),
	1365	$headers->charset ? $headers->charset : $this->default_charset);
8d4bcd	1366	}
T	1367
	1368
	1369	/**
	1370	* Returns the whole message source as string
	1371	*
	1372	* @param int Message UID
6d969b	1373	* @return string Message source string
8d4bcd	1374	*/
T	1375	function &get_raw_body($uid)
4e17e6	1376	{
T	1377	if (!($msg_id = $this->_uid2id($uid)))
	1378	return FALSE;
	1379
6d969b	1380	$body = iil_C_FetchPartHeader($this->conn, $this->mailbox, $msg_id, NULL);
T	1381	$body .= iil_C_HandlePartBody($this->conn, $this->mailbox, $msg_id, NULL, 1);
4e17e6	1382
T	1383	return $body;
	1384	}
e5686f	1385
A	1386
	1387	/**
	1388	* Returns the message headers as string
	1389	*
	1390	* @param int Message UID
	1391	* @return string Message headers string
	1392	*/
	1393	function &get_raw_headers($uid)
	1394	{
	1395	if (!($msg_id = $this->_uid2id($uid)))
	1396	return FALSE;
	1397
	1398	$headers = iil_C_FetchPartHeader($this->conn, $this->mailbox, $msg_id, NULL);
	1399
	1400	return $headers;
	1401	}
8d4bcd	1402
T	1403
	1404	/**
	1405	* Sends the whole message source to stdout
	1406	*
	1407	* @param int Message UID
	1408	*/
	1409	function print_raw_body($uid)
	1410	{
	1411	if (!($msg_id = $this->_uid2id($uid)))
	1412	return FALSE;
	1413
6d969b	1414	print iil_C_FetchPartHeader($this->conn, $this->mailbox, $msg_id, NULL);
T	1415	flush();
	1416	iil_C_HandlePartBody($this->conn, $this->mailbox, $msg_id, NULL, 2);
8d4bcd	1417	}
4e17e6	1418
T	1419
8d4bcd	1420	/**
T	1421	* Set message flag to one or several messages
	1422	*
	1423	* @param mixed Message UIDs as array or as comma-separated string
ed5407	1424	* @param string Flag to set: SEEN, UNDELETED, DELETED, RECENT, ANSWERED, DRAFT, MDNSENT
6d969b	1425	* @return boolean True on success, False on failure
8d4bcd	1426	*/
4e17e6	1427	function set_flag($uids, $flag)
T	1428	{
	1429	$flag = strtoupper($flag);
	1430	$msg_ids = array();
	1431	if (!is_array($uids))
8fae1e	1432	$uids = explode(',',$uids);
4e17e6	1433
8fae1e	1434	foreach ($uids as $uid) {
31b2ce	1435	$msg_ids[$uid] = $this->_uid2id($uid);
8fae1e	1436	}
4e17e6	1437
8fae1e	1438	if ($flag=='UNDELETED')
S	1439	$result = iil_C_Undelete($this->conn, $this->mailbox, join(',', array_values($msg_ids)));
	1440	else if ($flag=='UNSEEN')
31b2ce	1441	$result = iil_C_Unseen($this->conn, $this->mailbox, join(',', array_values($msg_ids)));
e189a6	1442	else if ($flag=='UNFLAGGED')
A	1443	$result = iil_C_UnFlag($this->conn, $this->mailbox, join(',', array_values($msg_ids)), 'FLAGGED');
4e17e6	1444	else
31b2ce	1445	$result = iil_C_Flag($this->conn, $this->mailbox, join(',', array_values($msg_ids)), $flag);
4e17e6	1446
T	1447	// reload message headers if cached
	1448	$cache_key = $this->mailbox.'.msg';
1cded8	1449	if ($this->caching_enabled)
4e17e6	1450	{
31b2ce	1451	foreach ($msg_ids as $uid => $id)
4e17e6	1452	{
31b2ce	1453	if ($cached_headers = $this->get_cached_message($cache_key, $uid))
4e17e6	1454	{
1cded8	1455	$this->remove_message_cache($cache_key, $id);
T	1456	//$this->get_headers($uid);
4e17e6	1457	}
T	1458	}
1cded8	1459
T	1460	// close and re-open connection
	1461	// this prevents connection problems with Courier
	1462	$this->reconnect();
4e17e6	1463	}
T	1464
	1465	// set nr of messages that were flaged
31b2ce	1466	$count = count($msg_ids);
4e17e6	1467
T	1468	// clear message count cache
	1469	if ($result && $flag=='SEEN')
	1470	$this->_set_messagecount($this->mailbox, 'UNSEEN', $count*(-1));
	1471	else if ($result && $flag=='UNSEEN')
	1472	$this->_set_messagecount($this->mailbox, 'UNSEEN', $count);
	1473	else if ($result && $flag=='DELETED')
	1474	$this->_set_messagecount($this->mailbox, 'ALL', $count*(-1));
	1475
	1476	return $result;
	1477	}
	1478
	1479
6d969b	1480	/**
T	1481	* Append a mail message (source) to a specific mailbox
	1482	*
	1483	* @param string Target mailbox
	1484	* @param string Message source
	1485	* @return boolean True on success, False on error
	1486	*/
b068a0	1487	function save_message($mbox_name, &$message)
4e17e6	1488	{
a894ba	1489	$mbox_name = stripslashes($mbox_name);
aadfa1	1490	$mailbox = $this->_mod_mailbox($mbox_name);
4e17e6	1491
f88d41	1492	// make sure mailbox exists
4e17e6	1493	if (in_array($mailbox, $this->_list_mailboxes()))
T	1494	$saved = iil_C_Append($this->conn, $mailbox, $message);
1cded8	1495
4e17e6	1496	if ($saved)
T	1497	{
	1498	// increase messagecount of the target mailbox
	1499	$this->_set_messagecount($mailbox, 'ALL', 1);
	1500	}
	1501
	1502	return $saved;
	1503	}
	1504
	1505
6d969b	1506	/**
T	1507	* Move a message from one mailbox to another
	1508	*
	1509	* @param string List of UIDs to move, separated by comma
	1510	* @param string Target mailbox
	1511	* @param string Source mailbox
	1512	* @return boolean True on success, False on error
	1513	*/
4e17e6	1514	function move_message($uids, $to_mbox, $from_mbox='')
T	1515	{
a05793	1516	$to_mbox_in = stripslashes($to_mbox);
a894ba	1517	$from_mbox = stripslashes($from_mbox);
a05793	1518	$to_mbox = $this->_mod_mailbox($to_mbox_in);
4e17e6	1519	$from_mbox = $from_mbox ? $this->_mod_mailbox($from_mbox) : $this->mailbox;
T	1520
f88d41	1521	// make sure mailbox exists
4e17e6	1522	if (!in_array($to_mbox, $this->_list_mailboxes()))
f88d41	1523	{
a05793	1524	if (in_array($to_mbox_in, $this->default_folders))
T	1525	$this->create_mailbox($to_mbox_in, TRUE);
f88d41	1526	else
T	1527	return FALSE;
	1528	}
	1529
4e17e6	1530	// convert the list of uids to array
T	1531	$a_uids = is_string($uids) ? explode(',', $uids) : (is_array($uids) ? $uids : NULL);
	1532
	1533	// exit if no message uids are specified
	1534	if (!is_array($a_uids))
	1535	return false;
520c36	1536
4e17e6	1537	// convert uids to message ids
T	1538	$a_mids = array();
	1539	foreach ($a_uids as $uid)
	1540	$a_mids[] = $this->_uid2id($uid, $from_mbox);
520c36	1541
4379bb	1542	$iil_move = iil_C_Move($this->conn, join(',', $a_mids), $from_mbox, $to_mbox);
T	1543	$moved = !($iil_move === false \|\| $iil_move < 0);
4e17e6	1544
T	1545	// send expunge command in order to have the moved message
	1546	// really deleted from the source mailbox
bf0cb9	1547	if ($moved) {
d87fc2	1548	// but only when flag_for_deletion is set to false
A	1549	if (!rcmail::get_instance()->config->get('flag_for_deletion', false))
	1550	{
	1551	$this->_expunge($from_mbox, FALSE);
	1552	$this->_clear_messagecount($from_mbox);
	1553	$this->_clear_messagecount($to_mbox);
	1554	}
bf0cb9	1555	}
T	1556	// moving failed
	1557	else if (rcmail::get_instance()->config->get('delete_always', false)) {
	1558	return iil_C_Delete($this->conn, $from_mbox, join(',', $a_mids));
	1559	}
04c618	1560
T	1561	// remove message ids from search set
	1562	if ($moved && $this->search_set && $from_mbox == $this->mailbox)
	1563	$this->search_set = array_diff($this->search_set, $a_mids);
4e17e6	1564
T	1565	// update cached message headers
	1566	$cache_key = $from_mbox.'.msg';
1cded8	1567	if ($moved && ($a_cache_index = $this->get_message_cache_index($cache_key)))
4e17e6	1568	{
1cded8	1569	$start_index = 100000;
4e17e6	1570	foreach ($a_uids as $uid)
1cded8	1571	{
04c618	1572	if (($index = array_search($uid, $a_cache_index)) !== FALSE)
T	1573	$start_index = min($index, $start_index);
1cded8	1574	}
4e17e6	1575
1cded8	1576	// clear cache from the lowest index on
T	1577	$this->clear_message_cache($cache_key, $start_index);
4e17e6	1578	}
T	1579
	1580	return $moved;
	1581	}
	1582
	1583
6d969b	1584	/**
T	1585	* Mark messages as deleted and expunge mailbox
	1586	*
	1587	* @param string List of UIDs to move, separated by comma
	1588	* @param string Source mailbox
	1589	* @return boolean True on success, False on error
	1590	*/
aadfa1	1591	function delete_message($uids, $mbox_name='')
4e17e6	1592	{
a894ba	1593	$mbox_name = stripslashes($mbox_name);
aadfa1	1594	$mailbox = $mbox_name ? $this->_mod_mailbox($mbox_name) : $this->mailbox;
4e17e6	1595
T	1596	// convert the list of uids to array
	1597	$a_uids = is_string($uids) ? explode(',', $uids) : (is_array($uids) ? $uids : NULL);
	1598
	1599	// exit if no message uids are specified
	1600	if (!is_array($a_uids))
	1601	return false;
	1602
	1603	// convert uids to message ids
	1604	$a_mids = array();
	1605	foreach ($a_uids as $uid)
	1606	$a_mids[] = $this->_uid2id($uid, $mailbox);
	1607
	1608	$deleted = iil_C_Delete($this->conn, $mailbox, join(',', $a_mids));
	1609
	1610	// send expunge command in order to have the deleted message
	1611	// really deleted from the mailbox
	1612	if ($deleted)
	1613	{
1cded8	1614	$this->_expunge($mailbox, FALSE);
4e17e6	1615	$this->_clear_messagecount($mailbox);
c719f3	1616	unset($this->uid_id_map[$mailbox]);
4e17e6	1617	}
T	1618
04c618	1619	// remove message ids from search set
077070	1620	if ($deleted && $this->search_set && $mailbox == $this->mailbox)
04c618	1621	$this->search_set = array_diff($this->search_set, $a_mids);
T	1622
4e17e6	1623	// remove deleted messages from cache
1cded8	1624	$cache_key = $mailbox.'.msg';
T	1625	if ($deleted && ($a_cache_index = $this->get_message_cache_index($cache_key)))
4e17e6	1626	{
1cded8	1627	$start_index = 100000;
4e17e6	1628	foreach ($a_uids as $uid)
1cded8	1629	{
6ce04b	1630	if (($index = array_search($uid, $a_cache_index)) !== FALSE)
S	1631	$start_index = min($index, $start_index);
1cded8	1632	}
4e17e6	1633
1cded8	1634	// clear cache from the lowest index on
T	1635	$this->clear_message_cache($cache_key, $start_index);
4e17e6	1636	}
T	1637
	1638	return $deleted;
	1639	}
	1640
	1641
6d969b	1642	/**
T	1643	* Clear all messages in a specific mailbox
	1644	*
	1645	* @param string Mailbox name
	1646	* @return int Above 0 on success
	1647	*/
aadfa1	1648	function clear_mailbox($mbox_name=NULL)
a95e0e	1649	{
a894ba	1650	$mbox_name = stripslashes($mbox_name);
aadfa1	1651	$mailbox = !empty($mbox_name) ? $this->_mod_mailbox($mbox_name) : $this->mailbox;
a95e0e	1652	$msg_count = $this->_messagecount($mailbox, 'ALL');
T	1653
	1654	if ($msg_count>0)
1cded8	1655	{
5e3512	1656	$cleared = iil_C_ClearFolder($this->conn, $mailbox);
T	1657
	1658	// make sure the message count cache is cleared as well
	1659	if ($cleared)
	1660	{
	1661	$this->clear_message_cache($mailbox.'.msg');
	1662	$a_mailbox_cache = $this->get_cache('messagecount');
	1663	unset($a_mailbox_cache[$mailbox]);
	1664	$this->update_cache('messagecount', $a_mailbox_cache);
	1665	}
	1666
	1667	return $cleared;
1cded8	1668	}
a95e0e	1669	else
T	1670	return 0;
	1671	}
	1672
	1673
6d969b	1674	/**
T	1675	* Send IMAP expunge command and clear cache
	1676	*
	1677	* @param string Mailbox name
	1678	* @param boolean False if cache should not be cleared
	1679	* @return boolean True on success
	1680	*/
aadfa1	1681	function expunge($mbox_name='', $clear_cache=TRUE)
4e17e6	1682	{
a894ba	1683	$mbox_name = stripslashes($mbox_name);
aadfa1	1684	$mailbox = $mbox_name ? $this->_mod_mailbox($mbox_name) : $this->mailbox;
1cded8	1685	return $this->_expunge($mailbox, $clear_cache);
T	1686	}
	1687
	1688
6d969b	1689	/**
T	1690	* Send IMAP expunge command and clear cache
	1691	*
	1692	* @see rcube_imap::expunge()
	1693	* @access private
	1694	*/
1cded8	1695	function _expunge($mailbox, $clear_cache=TRUE)
T	1696	{
4e17e6	1697	$result = iil_C_Expunge($this->conn, $mailbox);
T	1698
	1699	if ($result>=0 && $clear_cache)
	1700	{
5c69aa	1701	$this->clear_message_cache($mailbox.'.msg');
4e17e6	1702	$this->_clear_messagecount($mailbox);
T	1703	}
	1704
	1705	return $result;
	1706	}
	1707
	1708
	1709	/* --------------------------------
	1710	* folder managment
	1711	* --------------------------------*/
	1712
	1713
fa4cd2	1714	/**
T	1715	* Get a list of all folders available on the IMAP server
	1716	*
	1717	* @param string IMAP root dir
6d969b	1718	* @return array Indexed array with folder names
fa4cd2	1719	*/
4e17e6	1720	function list_unsubscribed($root='')
T	1721	{
	1722	static $sa_unsubscribed;
	1723
	1724	if (is_array($sa_unsubscribed))
	1725	return $sa_unsubscribed;
	1726
	1727	// retrieve list of folders from IMAP server
	1728	$a_mboxes = iil_C_ListMailboxes($this->conn, $this->_mod_mailbox($root), '*');
	1729
	1730	// modify names with root dir
aadfa1	1731	foreach ($a_mboxes as $mbox_name)
4e17e6	1732	{
aadfa1	1733	$name = $this->_mod_mailbox($mbox_name, 'out');
4e17e6	1734	if (strlen($name))
T	1735	$a_folders[] = $name;
	1736	}
	1737
	1738	// filter folders and sort them
	1739	$sa_unsubscribed = $this->_sort_mailbox_list($a_folders);
	1740	return $sa_unsubscribed;
	1741	}
	1742
	1743
58e360	1744	/**
6d969b	1745	* Get mailbox quota information
58e360	1746	* added by Nuny
6d969b	1747	*
T	1748	* @return mixed Quota info or False if not supported
58e360	1749	*/
T	1750	function get_quota()
	1751	{
	1752	if ($this->get_capability('QUOTA'))
fda695	1753	return iil_C_GetQuota($this->conn);
3ea0e3	1754
4647e1	1755	return FALSE;
58e360	1756	}
T	1757
	1758
fa4cd2	1759	/**
6d969b	1760	* Subscribe to a specific mailbox(es)
T	1761	*
c5097c	1762	* @param array Mailbox name(s)
6d969b	1763	* @return boolean True on success
fa4cd2	1764	*/
c5097c	1765	function subscribe($a_mboxes)
4e17e6	1766	{
c5097c	1767	if (!is_array($a_mboxes))
A	1768	$a_mboxes = array($a_mboxes);
	1769
4e17e6	1770	// let this common function do the main work
T	1771	return $this->_change_subscription($a_mboxes, 'subscribe');
	1772	}
	1773
	1774
fa4cd2	1775	/**
6d969b	1776	* Unsubscribe mailboxes
T	1777	*
c5097c	1778	* @param array Mailbox name(s)
6d969b	1779	* @return boolean True on success
fa4cd2	1780	*/
c5097c	1781	function unsubscribe($a_mboxes)
4e17e6	1782	{
c5097c	1783	if (!is_array($a_mboxes))
A	1784	$a_mboxes = array($a_mboxes);
4e17e6	1785
T	1786	// let this common function do the main work
	1787	return $this->_change_subscription($a_mboxes, 'unsubscribe');
	1788	}
	1789
	1790
fa4cd2	1791	/**
4d4264	1792	* Create a new mailbox on the server and register it in local cache
T	1793	*
	1794	* @param string New mailbox name (as utf-7 string)
	1795	* @param boolean True if the new mailbox should be subscribed
	1796	* @param string Name of the created mailbox, false on error
fa4cd2	1797	*/
4e17e6	1798	function create_mailbox($name, $subscribe=FALSE)
T	1799	{
	1800	$result = FALSE;
1cded8	1801
T	1802	// replace backslashes
	1803	$name = preg_replace('/[\\\]+/', '-', $name);
	1804
	1805	// reduce mailbox name to 100 chars
4d4264	1806	$name = substr($name, 0, 100);
1cded8	1807
4d4264	1808	$abs_name = $this->_mod_mailbox($name);
4e17e6	1809	$a_mailbox_cache = $this->get_cache('mailboxes');
fa4cd2	1810
719a25	1811	if (strlen($abs_name) && (!is_array($a_mailbox_cache) \|\| !in_array($abs_name, $a_mailbox_cache)))
a95e0e	1812	$result = iil_C_CreateFolder($this->conn, $abs_name);
4e17e6	1813
fa4cd2	1814	// try to subscribe it
719a25	1815	if ($result && $subscribe)
4d4264	1816	$this->subscribe($name);
4e17e6	1817
7902df	1818	return $result ? $name : FALSE;
4e17e6	1819	}
T	1820
	1821
fa4cd2	1822	/**
4d4264	1823	* Set a new name to an existing mailbox
T	1824	*
	1825	* @param string Mailbox to rename (as utf-7 string)
	1826	* @param string New mailbox name (as utf-7 string)
6d969b	1827	* @return string Name of the renames mailbox, False on error
fa4cd2	1828	*/
f9c107	1829	function rename_mailbox($mbox_name, $new_name)
4e17e6	1830	{
c8c1e0	1831	$result = FALSE;
S	1832
	1833	// replace backslashes
	1834	$name = preg_replace('/[\\\]+/', '-', $new_name);
f9c107	1835
T	1836	// encode mailbox name and reduce it to 100 chars
4d4264	1837	$name = substr($new_name, 0, 100);
c8c1e0	1838
f9c107	1839	// make absolute path
T	1840	$mailbox = $this->_mod_mailbox($mbox_name);
4d4264	1841	$abs_name = $this->_mod_mailbox($name);
f7bfec	1842
T	1843	// check if mailbox is subscribed
	1844	$a_subscribed = $this->_list_mailboxes();
	1845	$subscribed = in_array($mailbox, $a_subscribed);
	1846
	1847	// unsubscribe folder
	1848	if ($subscribed)
	1849	iil_C_UnSubscribe($this->conn, $mailbox);
4d4264	1850
f9c107	1851	if (strlen($abs_name))
T	1852	$result = iil_C_RenameFolder($this->conn, $mailbox, $abs_name);
4d4264	1853
f9c107	1854	if ($result)
T	1855	{
574564	1856	$delm = $this->get_hierarchy_delimiter();
T	1857
	1858	// check if mailbox children are subscribed
	1859	foreach ($a_subscribed as $c_subscribed)
	1860	if (preg_match('/^'.preg_quote($mailbox.$delm, '/').'/', $c_subscribed))
	1861	{
	1862	iil_C_UnSubscribe($this->conn, $c_subscribed);
	1863	iil_C_Subscribe($this->conn, preg_replace('/^'.preg_quote($mailbox, '/').'/', $abs_name, $c_subscribed));
	1864	}
	1865
	1866	// clear cache
f9c107	1867	$this->clear_message_cache($mailbox.'.msg');
f7bfec	1868	$this->clear_cache('mailboxes');
f9c107	1869	}
f7bfec	1870
4d4264	1871	// try to subscribe it
f7bfec	1872	if ($result && $subscribed)
T	1873	iil_C_Subscribe($this->conn, $abs_name);
c8c1e0	1874
S	1875	return $result ? $name : FALSE;
4e17e6	1876	}
T	1877
	1878
fa4cd2	1879	/**
6d969b	1880	* Remove mailboxes from server
T	1881	*
	1882	* @param string Mailbox name
	1883	* @return boolean True on success
fa4cd2	1884	*/
aadfa1	1885	function delete_mailbox($mbox_name)
4e17e6	1886	{
T	1887	$deleted = FALSE;
	1888
aadfa1	1889	if (is_array($mbox_name))
S	1890	$a_mboxes = $mbox_name;
	1891	else if (is_string($mbox_name) && strlen($mbox_name))
	1892	$a_mboxes = explode(',', $mbox_name);
4e17e6	1893
97a656	1894	$all_mboxes = iil_C_ListMailboxes($this->conn, $this->_mod_mailbox($root), '*');
S	1895
4e17e6	1896	if (is_array($a_mboxes))
aadfa1	1897	foreach ($a_mboxes as $mbox_name)
4e17e6	1898	{
aadfa1	1899	$mailbox = $this->_mod_mailbox($mbox_name);
4e17e6	1900
T	1901	// unsubscribe mailbox before deleting
	1902	iil_C_UnSubscribe($this->conn, $mailbox);
fa4cd2	1903
4e17e6	1904	// send delete command to server
T	1905	$result = iil_C_DeleteFolder($this->conn, $mailbox);
	1906	if ($result>=0)
	1907	$deleted = TRUE;
97a656	1908
S	1909	foreach ($all_mboxes as $c_mbox)
fa0152	1910	{
T	1911	$regex = preg_quote($mailbox . $this->delimiter, '/');
	1912	$regex = '/^' . $regex . '/';
	1913	if (preg_match($regex, $c_mbox))
97a656	1914	{
S	1915	iil_C_UnSubscribe($this->conn, $c_mbox);
	1916	$result = iil_C_DeleteFolder($this->conn, $c_mbox);
	1917	if ($result>=0)
	1918	$deleted = TRUE;
	1919	}
fa0152	1920	}
4e17e6	1921	}
T	1922
	1923	// clear mailboxlist cache
	1924	if ($deleted)
1cded8	1925	{
T	1926	$this->clear_message_cache($mailbox.'.msg');
4e17e6	1927	$this->clear_cache('mailboxes');
1cded8	1928	}
4e17e6	1929
1cded8	1930	return $deleted;
4e17e6	1931	}
T	1932
fa4cd2	1933
T	1934	/**
	1935	* Create all folders specified as default
	1936	*/
	1937	function create_default_folders()
	1938	{
	1939	$a_folders = iil_C_ListMailboxes($this->conn, $this->_mod_mailbox(''), '*');
	1940	$a_subscribed = iil_C_ListSubscribed($this->conn, $this->_mod_mailbox(''), '*');
	1941
	1942	// create default folders if they do not exist
	1943	foreach ($this->default_folders as $folder)
	1944	{
	1945	$abs_name = $this->_mod_mailbox($folder);
719a25	1946	if (!in_array_nocase($abs_name, $a_folders))
T	1947	$this->create_mailbox($folder, TRUE);
	1948	else if (!in_array_nocase($abs_name, $a_subscribed))
	1949	$this->subscribe($folder);
fa4cd2	1950	}
T	1951	}
4e17e6	1952
T	1953
	1954
	1955	/* --------------------------------
1cded8	1956	* internal caching methods
4e17e6	1957	* --------------------------------*/
6dc026	1958
6d969b	1959	/**
T	1960	* @access private
	1961	*/
6dc026	1962	function set_caching($set)
T	1963	{
1cded8	1964	if ($set && is_object($this->db))
6dc026	1965	$this->caching_enabled = TRUE;
T	1966	else
	1967	$this->caching_enabled = FALSE;
	1968	}
1cded8	1969
6d969b	1970	/**
T	1971	* @access private
	1972	*/
4e17e6	1973	function get_cache($key)
T	1974	{
	1975	// read cache
6dc026	1976	if (!isset($this->cache[$key]) && $this->caching_enabled)
4e17e6	1977	{
1cded8	1978	$cache_data = $this->_read_cache_record('IMAP.'.$key);
4e17e6	1979	$this->cache[$key] = strlen($cache_data) ? unserialize($cache_data) : FALSE;
T	1980	}
	1981
1cded8	1982	return $this->cache[$key];
4e17e6	1983	}
T	1984
6d969b	1985	/**
T	1986	* @access private
	1987	*/
4e17e6	1988	function update_cache($key, $data)
T	1989	{
	1990	$this->cache[$key] = $data;
	1991	$this->cache_changed = TRUE;
	1992	$this->cache_changes[$key] = TRUE;
	1993	}
	1994
6d969b	1995	/**
T	1996	* @access private
	1997	*/
4e17e6	1998	function write_cache()
T	1999	{
6dc026	2000	if ($this->caching_enabled && $this->cache_changed)
4e17e6	2001	{
T	2002	foreach ($this->cache as $key => $data)
	2003	{
	2004	if ($this->cache_changes[$key])
1cded8	2005	$this->_write_cache_record('IMAP.'.$key, serialize($data));
4e17e6	2006	}
T	2007	}
	2008	}
	2009
6d969b	2010	/**
T	2011	* @access private
	2012	*/
4e17e6	2013	function clear_cache($key=NULL)
T	2014	{
fc2312	2015	if (!$this->caching_enabled)
A	2016	return;
	2017
4e17e6	2018	if ($key===NULL)
T	2019	{
	2020	foreach ($this->cache as $key => $data)
1cded8	2021	$this->_clear_cache_record('IMAP.'.$key);
4e17e6	2022
T	2023	$this->cache = array();
	2024	$this->cache_changed = FALSE;
	2025	$this->cache_changes = array();
	2026	}
	2027	else
	2028	{
1cded8	2029	$this->_clear_cache_record('IMAP.'.$key);
4e17e6	2030	$this->cache_changes[$key] = FALSE;
T	2031	unset($this->cache[$key]);
	2032	}
	2033	}
	2034
6d969b	2035	/**
T	2036	* @access private
	2037	*/
1cded8	2038	function _read_cache_record($key)
T	2039	{
	2040	$cache_data = FALSE;
	2041
	2042	if ($this->db)
	2043	{
	2044	// get cached data from DB
	2045	$sql_result = $this->db->query(
	2046	"SELECT cache_id, data
	2047	FROM ".get_table_name('cache')."
	2048	WHERE user_id=?
	2049	AND cache_key=?",
	2050	$_SESSION['user_id'],
	2051	$key);
	2052
	2053	if ($sql_arr = $this->db->fetch_assoc($sql_result))
	2054	{
	2055	$cache_data = $sql_arr['data'];
	2056	$this->cache_keys[$key] = $sql_arr['cache_id'];
	2057	}
	2058	}
	2059
6d969b	2060	return $cache_data;
1cded8	2061	}
T	2062
6d969b	2063	/**
T	2064	* @access private
	2065	*/
1cded8	2066	function _write_cache_record($key, $data)
T	2067	{
	2068	if (!$this->db)
	2069	return FALSE;
	2070
	2071	// check if we already have a cache entry for this key
	2072	if (!isset($this->cache_keys[$key]))
	2073	{
	2074	$sql_result = $this->db->query(
	2075	"SELECT cache_id
	2076	FROM ".get_table_name('cache')."
	2077	WHERE user_id=?
	2078	AND cache_key=?",
	2079	$_SESSION['user_id'],
	2080	$key);
	2081
	2082	if ($sql_arr = $this->db->fetch_assoc($sql_result))
	2083	$this->cache_keys[$key] = $sql_arr['cache_id'];
	2084	else
	2085	$this->cache_keys[$key] = FALSE;
	2086	}
	2087
	2088	// update existing cache record
	2089	if ($this->cache_keys[$key])
	2090	{
	2091	$this->db->query(
	2092	"UPDATE ".get_table_name('cache')."
107bde	2093	SET created=".$this->db->now().",
1cded8	2094	data=?
T	2095	WHERE user_id=?
	2096	AND cache_key=?",
	2097	$data,
	2098	$_SESSION['user_id'],
	2099	$key);
	2100	}
	2101	// add new cache record
	2102	else
	2103	{
	2104	$this->db->query(
	2105	"INSERT INTO ".get_table_name('cache')."
	2106	(created, user_id, cache_key, data)
107bde	2107	VALUES (".$this->db->now().", ?, ?, ?)",
1cded8	2108	$_SESSION['user_id'],
T	2109	$key,
	2110	$data);
	2111	}
	2112	}
	2113
6d969b	2114	/**
T	2115	* @access private
	2116	*/
1cded8	2117	function _clear_cache_record($key)
T	2118	{
	2119	$this->db->query(
	2120	"DELETE FROM ".get_table_name('cache')."
	2121	WHERE user_id=?
	2122	AND cache_key=?",
	2123	$_SESSION['user_id'],
	2124	$key);
	2125	}
	2126
	2127
	2128
4e17e6	2129	/* --------------------------------
1cded8	2130	* message caching methods
T	2131	* --------------------------------*/
	2132
	2133
6d969b	2134	/**
T	2135	* Checks if the cache is up-to-date
	2136	*
	2137	* @param string Mailbox name
	2138	* @param string Internal cache key
	2139	* @return int -3 = off, -2 = incomplete, -1 = dirty
	2140	*/
1cded8	2141	function check_cache_status($mailbox, $cache_key)
T	2142	{
	2143	if (!$this->caching_enabled)
	2144	return -3;
	2145
	2146	$cache_index = $this->get_message_cache_index($cache_key, TRUE);
	2147	$msg_count = $this->_messagecount($mailbox);
	2148	$cache_count = count($cache_index);
	2149
	2150	// console("Cache check: $msg_count !== ".count($cache_index));
	2151
	2152	if ($cache_count==$msg_count)
	2153	{
	2154	// get highest index
	2155	$header = iil_C_FetchHeader($this->conn, $mailbox, "$msg_count");
	2156	$cache_uid = array_pop($cache_index);
	2157
e6f360	2158	// uids of highest message matches -> cache seems OK
1cded8	2159	if ($cache_uid == $header->uid)
T	2160	return 1;
	2161
	2162	// cache is dirty
	2163	return -1;
	2164	}
e6f360	2165	// if cache count differs less than 10% report as dirty
1cded8	2166	else if (abs($msg_count - $cache_count) < $msg_count/10)
T	2167	return -1;
	2168	else
	2169	return -2;
	2170	}
	2171
6d969b	2172	/**
T	2173	* @access private
	2174	*/
1cded8	2175	function get_message_cache($key, $from, $to, $sort_field, $sort_order)
T	2176	{
	2177	$cache_key = "$key:$from:$to:$sort_field:$sort_order";
	2178	$db_header_fields = array('idx', 'uid', 'subject', 'from', 'to', 'cc', 'date', 'size');
	2179
	2180	if (!in_array($sort_field, $db_header_fields))
	2181	$sort_field = 'idx';
	2182
	2183	if ($this->caching_enabled && !isset($this->cache[$cache_key]))
	2184	{
	2185	$this->cache[$cache_key] = array();
	2186	$sql_result = $this->db->limitquery(
	2187	"SELECT idx, uid, headers
	2188	FROM ".get_table_name('messages')."
	2189	WHERE user_id=?
	2190	AND cache_key=?
	2191	ORDER BY ".$this->db->quoteIdentifier($sort_field)." ".
	2192	strtoupper($sort_order),
	2193	$from,
	2194	$to-$from,
	2195	$_SESSION['user_id'],
	2196	$key);
	2197
	2198	while ($sql_arr = $this->db->fetch_assoc($sql_result))
	2199	{
	2200	$uid = $sql_arr['uid'];
	2201	$this->cache[$cache_key][$uid] = unserialize($sql_arr['headers']);
ecd2e7	2202
T	2203	// featch headers if unserialize failed
	2204	if (empty($this->cache[$cache_key][$uid]))
	2205	$this->cache[$cache_key][$uid] = iil_C_FetchHeader($this->conn, preg_replace('/.msg$/', '', $key), $uid, true);
1cded8	2206	}
T	2207	}
	2208
	2209	return $this->cache[$cache_key];
	2210	}
	2211
6d969b	2212	/**
T	2213	* @access private
	2214	*/
f7bfec	2215	function &get_cached_message($key, $uid, $struct=false)
1cded8	2216	{
T	2217	$internal_key = '__single_msg';
017def	2218
f7bfec	2219	if ($this->caching_enabled && (!isset($this->cache[$internal_key][$uid]) \|\|
T	2220	($struct && empty($this->cache[$internal_key][$uid]->structure))))
1cded8	2221	{
f7bfec	2222	$sql_select = "idx, uid, headers" . ($struct ? ", structure" : '');
1cded8	2223	$sql_result = $this->db->query(
T	2224	"SELECT $sql_select
	2225	FROM ".get_table_name('messages')."
	2226	WHERE user_id=?
	2227	AND cache_key=?
	2228	AND uid=?",
	2229	$_SESSION['user_id'],
	2230	$key,
	2231	$uid);
f7bfec	2232
1cded8	2233	if ($sql_arr = $this->db->fetch_assoc($sql_result))
T	2234	{
f7bfec	2235	$this->cache[$internal_key][$uid] = unserialize($sql_arr['headers']);
T	2236	if (is_object($this->cache[$internal_key][$uid]) && !empty($sql_arr['structure']))
	2237	$this->cache[$internal_key][$uid]->structure = unserialize($sql_arr['structure']);
1cded8	2238	}
T	2239	}
	2240
	2241	return $this->cache[$internal_key][$uid];
	2242	}
	2243
6d969b	2244	/**
T	2245	* @access private
	2246	*/
0677ca	2247	function get_message_cache_index($key, $force=FALSE, $sort_col='idx', $sort_order='ASC')
1cded8	2248	{
T	2249	static $sa_message_index = array();
	2250
4647e1	2251	// empty key -> empty array
ffb0b0	2252	if (!$this->caching_enabled \|\| empty($key))
4647e1	2253	return array();
T	2254
1cded8	2255	if (!empty($sa_message_index[$key]) && !$force)
T	2256	return $sa_message_index[$key];
	2257
	2258	$sa_message_index[$key] = array();
	2259	$sql_result = $this->db->query(
	2260	"SELECT idx, uid
	2261	FROM ".get_table_name('messages')."
	2262	WHERE user_id=?
	2263	AND cache_key=?
0677ca	2264	ORDER BY ".$this->db->quote_identifier($sort_col)." ".$sort_order,
1cded8	2265	$_SESSION['user_id'],
T	2266	$key);
	2267
	2268	while ($sql_arr = $this->db->fetch_assoc($sql_result))
	2269	$sa_message_index[$key][$sql_arr['idx']] = $sql_arr['uid'];
	2270
	2271	return $sa_message_index[$key];
	2272	}
	2273
6d969b	2274	/**
T	2275	* @access private
	2276	*/
f7bfec	2277	function add_message_cache($key, $index, $headers, $struct=null)
1cded8	2278	{
017def	2279	if (empty($key) \|\| !is_object($headers) \|\| empty($headers->uid))
T	2280	return;
	2281
	2282	// add to internal (fast) cache
	2283	$this->cache['__single_msg'][$headers->uid] = $headers;
	2284	$this->cache['__single_msg'][$headers->uid]->structure = $struct;
	2285
	2286	// no further caching
	2287	if (!$this->caching_enabled)
31b2ce	2288	return;
017def	2289
f7bfec	2290	// check for an existing record (probly headers are cached but structure not)
T	2291	$sql_result = $this->db->query(
	2292	"SELECT message_id
	2293	FROM ".get_table_name('messages')."
	2294	WHERE user_id=?
	2295	AND cache_key=?
	2296	AND uid=?
	2297	AND del<>1",
	2298	$_SESSION['user_id'],
	2299	$key,
	2300	$headers->uid);
31b2ce	2301
f7bfec	2302	// update cache record
T	2303	if ($sql_arr = $this->db->fetch_assoc($sql_result))
	2304	{
	2305	$this->db->query(
	2306	"UPDATE ".get_table_name('messages')."
	2307	SET idx=?, headers=?, structure=?
	2308	WHERE message_id=?",
	2309	$index,
	2310	serialize($headers),
	2311	is_object($struct) ? serialize($struct) : NULL,
	2312	$sql_arr['message_id']
	2313	);
	2314	}
	2315	else // insert new record
	2316	{
	2317	$this->db->query(
	2318	"INSERT INTO ".get_table_name('messages')."
	2319	(user_id, del, cache_key, created, idx, uid, subject, ".$this->db->quoteIdentifier('from').", ".$this->db->quoteIdentifier('to').", cc, date, size, headers, structure)
107bde	2320	VALUES (?, 0, ?, ".$this->db->now().", ?, ?, ?, ?, ?, ?, ".$this->db->fromunixtime($headers->timestamp).", ?, ?, ?)",
f7bfec	2321	$_SESSION['user_id'],
T	2322	$key,
	2323	$index,
	2324	$headers->uid,
	2325	(string)substr($this->decode_header($headers->subject, TRUE), 0, 128),
	2326	(string)substr($this->decode_header($headers->from, TRUE), 0, 128),
	2327	(string)substr($this->decode_header($headers->to, TRUE), 0, 128),
	2328	(string)substr($this->decode_header($headers->cc, TRUE), 0, 128),
	2329	(int)$headers->size,
	2330	serialize($headers),
	2331	is_object($struct) ? serialize($struct) : NULL
	2332	);
	2333	}
1cded8	2334	}
T	2335
6d969b	2336	/**
T	2337	* @access private
	2338	*/
1cded8	2339	function remove_message_cache($key, $index)
T	2340	{
780527	2341	if (!$this->caching_enabled)
T	2342	return;
	2343
1cded8	2344	$this->db->query(
T	2345	"DELETE FROM ".get_table_name('messages')."
	2346	WHERE user_id=?
	2347	AND cache_key=?
	2348	AND idx=?",
	2349	$_SESSION['user_id'],
	2350	$key,
	2351	$index);
	2352	}
	2353
6d969b	2354	/**
T	2355	* @access private
	2356	*/
1cded8	2357	function clear_message_cache($key, $start_index=1)
T	2358	{
780527	2359	if (!$this->caching_enabled)
T	2360	return;
	2361
1cded8	2362	$this->db->query(
T	2363	"DELETE FROM ".get_table_name('messages')."
	2364	WHERE user_id=?
	2365	AND cache_key=?
	2366	AND idx>=?",
	2367	$_SESSION['user_id'],
	2368	$key,
	2369	$start_index);
	2370	}
	2371
	2372
	2373
	2374
	2375	/* --------------------------------
	2376	* encoding/decoding methods
4e17e6	2377	* --------------------------------*/
T	2378
6d969b	2379	/**
T	2380	* Split an address list into a structured array list
	2381	*
	2382	* @param string Input string
	2383	* @param int List only this number of addresses
	2384	* @param boolean Decode address strings
	2385	* @return array Indexed list of addresses
	2386	*/
f11541	2387	function decode_address_list($input, $max=null, $decode=true)
4e17e6	2388	{
f11541	2389	$a = $this->_parse_address_list($input, $decode);
4e17e6	2390	$out = array();
0c6f4b	2391	// Special chars as defined by RFC 822 need to in quoted string (or escaped).
T	2392	$special_chars = '[\<\>\\\.\[\]@,;:"]';
41fa0b	2393
4e17e6	2394	if (!is_array($a))
T	2395	return $out;
	2396
	2397	$c = count($a);
	2398	$j = 0;
	2399
	2400	foreach ($a as $val)
	2401	{
	2402	$j++;
	2403	$address = $val['address'];
	2404	$name = preg_replace(array('/^[\'"]/', '/[\'"]$/'), '', trim($val['name']));
3cf664	2405	if ($name && $address && $name != $address)
0c6f4b	2406	$string = sprintf('%s <%s>', preg_match("/$special_chars/", $name) ? '"'.addcslashes($name, '"').'"' : $name, $address);
3cf664	2407	else if ($address)
T	2408	$string = $address;
	2409	else if ($name)
	2410	$string = $name;
4e17e6	2411
T	2412	$out[$j] = array('name' => $name,
	2413	'mailto' => $address,
	2414	'string' => $string);
	2415
	2416	if ($max && $j==$max)
	2417	break;
	2418	}
	2419
	2420	return $out;
	2421	}
	2422
	2423
6d969b	2424	/**
T	2425	* Decode a message header value
	2426	*
	2427	* @param string Header value
	2428	* @param boolean Remove quotes if necessary
	2429	* @return string Decoded string
	2430	*/
1cded8	2431	function decode_header($input, $remove_quotes=FALSE)
4e17e6	2432	{
17b5fb	2433	$str = rcube_imap::decode_mime_string((string)$input, $this->default_charset);
1cded8	2434	if ($str{0}=='"' && $remove_quotes)
T	2435	$str = str_replace('"', '', $str);
	2436
	2437	return $str;
4b0f65	2438	}
ba8f44	2439
T	2440
	2441	/**
	2442	* Decode a mime-encoded string to internal charset
	2443	*
6d969b	2444	* @param string Header value
T	2445	* @param string Fallback charset if none specified
	2446	* @return string Decoded string
	2447	* @static
ba8f44	2448	*/
f11541	2449	function decode_mime_string($input, $fallback=null)
4b0f65	2450	{
2e6825	2451	// Initialize variable
4e17e6	2452	$out = '';
T	2453
2e6825	2454	// Iterate instead of recursing, this way if there are too many values we don't have stack overflows
T	2455	// rfc: all line breaks or other characters not found
	2456	// in the Base64 Alphabet must be ignored by decoding software
	2457	// delete all blanks between MIME-lines, differently we can
	2458	// receive unnecessary blanks and broken utf-8 symbols
	2459	$input = preg_replace("/\?=\s+=\?/", '?==?', $input);
9e60d4	2460
2e6825	2461	// Check if there is stuff to decode
T	2462	if (strpos($input, '=?') !== false) {
	2463	// Loop through the string to decode all occurences of =? ?= into the variable $out
	2464	while(($pos = strpos($input, '=?')) !== false) {
	2465	// Append everything that is before the text to be decoded
	2466	$out .= substr($input, 0, $pos);
4e17e6	2467
2e6825	2468	// Get the location of the text to decode
T	2469	$end_cs_pos = strpos($input, "?", $pos+2);
	2470	$end_en_pos = strpos($input, "?", $end_cs_pos+1);
	2471	$end_pos = strpos($input, "?=", $end_en_pos+1);
4e17e6	2472
2e6825	2473	// Extract the encoded string
T	2474	$encstr = substr($input, $pos+2, ($end_pos-$pos-2));
	2475	// Extract the remaining string
	2476	$input = substr($input, $end_pos+2);
	2477
	2478	// Decode the string fragement
	2479	$out .= rcube_imap::_decode_mime_string_part($encstr);
4e17e6	2480	}
399835	2481
2e6825	2482	// Deocde the rest (if any)
T	2483	if (strlen($input) != 0)
	2484	$out .= rcube_imap::decode_mime_string($input, $fallback);
	2485
	2486	// return the results
	2487	return $out;
	2488	}
	2489
f11541	2490	// no encoding information, use fallback
399835	2491	return rcube_charset_convert($input,
b026c3	2492	!empty($fallback) ? $fallback : rcmail::get_instance()->config->get('default_charset', 'ISO-8859-1'));
4e17e6	2493	}
T	2494
	2495
ba8f44	2496	/**
T	2497	* Decode a part of a mime-encoded string
	2498	*
6d969b	2499	* @access private
ba8f44	2500	*/
4b0f65	2501	function _decode_mime_string_part($str)
4e17e6	2502	{
T	2503	$a = explode('?', $str);
	2504	$count = count($a);
	2505
	2506	// should be in format "charset?encoding?base64_string"
	2507	if ($count >= 3)
	2508	{
	2509	for ($i=2; $i<$count; $i++)
	2510	$rest.=$a[$i];
	2511
	2512	if (($a[1]=="B")\|\|($a[1]=="b"))
	2513	$rest = base64_decode($rest);
	2514	else if (($a[1]=="Q")\|\|($a[1]=="q"))
	2515	{
	2516	$rest = str_replace("_", " ", $rest);
	2517	$rest = quoted_printable_decode($rest);
	2518	}
	2519
3f9edb	2520	return rcube_charset_convert($rest, $a[0]);
4e17e6	2521	}
T	2522	else
3f9edb	2523	return $str; // we dont' know what to do with this
4e17e6	2524	}
T	2525
	2526
6d969b	2527	/**
T	2528	* Decode a mime part
	2529	*
	2530	* @param string Input string
	2531	* @param string Part encoding
	2532	* @return string Decoded string
	2533	* @access private
	2534	*/
4e17e6	2535	function mime_decode($input, $encoding='7bit')
T	2536	{
	2537	switch (strtolower($encoding))
	2538	{
	2539	case '7bit':
	2540	return $input;
	2541	break;
	2542
	2543	case 'quoted-printable':
	2544	return quoted_printable_decode($input);
	2545	break;
	2546
	2547	case 'base64':
	2548	return base64_decode($input);
	2549	break;
	2550
	2551	default:
	2552	return $input;
	2553	}
	2554	}
	2555
	2556
6d969b	2557	/**
T	2558	* Convert body charset to UTF-8 according to the ctype_parameters
	2559	*
	2560	* @param string Part body to decode
	2561	* @param string Charset to convert from
	2562	* @return string Content converted to internal charset
	2563	*/
4e17e6	2564	function charset_decode($body, $ctype_param)
T	2565	{
a95e0e	2566	if (is_array($ctype_param) && !empty($ctype_param['charset']))
3f9edb	2567	return rcube_charset_convert($body, $ctype_param['charset']);
4e17e6	2568
fb5f4f	2569	// defaults to what is specified in the class header
17b5fb	2570	return rcube_charset_convert($body, $this->default_charset);
4e17e6	2571	}
T	2572
	2573
6d969b	2574	/**
T	2575	* Translate UID to message ID
	2576	*
	2577	* @param int Message UID
	2578	* @param string Mailbox name
	2579	* @return int Message ID
	2580	*/
	2581	function get_id($uid, $mbox_name=NULL)
	2582	{
	2583	$mailbox = $mbox_name ? $this->_mod_mailbox($mbox_name) : $this->mailbox;
	2584	return $this->_uid2id($uid, $mailbox);
	2585	}
	2586
	2587
	2588	/**
	2589	* Translate message number to UID
	2590	*
	2591	* @param int Message ID
	2592	* @param string Mailbox name
	2593	* @return int Message UID
	2594	*/
	2595	function get_uid($id,$mbox_name=NULL)
	2596	{
	2597	$mailbox = $mbox_name ? $this->_mod_mailbox($mbox_name) : $this->mailbox;
	2598	return $this->_id2uid($id, $mailbox);
	2599	}
	2600
1cded8	2601
ba8f44	2602
4e17e6	2603	/* --------------------------------
T	2604	* private methods
	2605	* --------------------------------*/
	2606
	2607
6d969b	2608	/**
T	2609	* @access private
	2610	*/
aadfa1	2611	function _mod_mailbox($mbox_name, $mode='in')
4e17e6	2612	{
ae4d74	2613	if ((!empty($this->root_ns) && $this->root_ns == $mbox_name) \|\| $mbox_name == 'INBOX')
aadfa1	2614	return $mbox_name;
7902df	2615
f619de	2616	if (!empty($this->root_dir) && $mode=='in')
aadfa1	2617	$mbox_name = $this->root_dir.$this->delimiter.$mbox_name;
7902df	2618	else if (strlen($this->root_dir) && $mode=='out')
aadfa1	2619	$mbox_name = substr($mbox_name, strlen($this->root_dir)+1);
4e17e6	2620
aadfa1	2621	return $mbox_name;
4e17e6	2622	}
T	2623
d5342a	2624	/**
T	2625	* Validate the given input and save to local properties
	2626	* @access private
	2627	*/
	2628	function _set_sort_order($sort_field, $sort_order)
	2629	{
	2630	if ($sort_field != null)
	2631	$this->sort_field = asciiwords($sort_field);
	2632	if ($sort_order != null)
	2633	$this->sort_order = strtoupper($sort_order) == 'DESC' ? 'DESC' : 'ASC';
	2634	}
4e17e6	2635
6d969b	2636	/**
T	2637	* Sort mailboxes first by default folders and then in alphabethical order
	2638	* @access private
	2639	*/
4e17e6	2640	function _sort_mailbox_list($a_folders)
T	2641	{
ea400e	2642	$a_out = $a_defaults = $folders = array();
681a59	2643
A	2644	$delimiter = $this->get_hierarchy_delimiter();
4e17e6	2645
T	2646	// find default folders and skip folders starting with '.'
681a59	2647	foreach ($a_folders as $i => $folder)
4e17e6	2648	{
T	2649	if ($folder{0}=='.')
6d969b	2650	continue;
fa4cd2	2651
c007e6	2652	if (($p = array_search(strtolower($folder), $this->default_folders_lc)) !== false && !$a_defaults[$p])
6d969b	2653	$a_defaults[$p] = $folder;
4e17e6	2654	else
70aa90	2655	$folders[$folder] = rc_strtolower(rcube_charset_convert($folder, 'UTF-7'));
681a59	2656	}
A	2657
	2658	asort($folders, SORT_LOCALE_STRING);
	2659	ksort($a_defaults);
	2660
	2661	$folders = array_merge($a_defaults, array_keys($folders));
	2662
	2663	// finally we must rebuild the list to move
f219a2	2664	// subfolders of default folders to their place...
A	2665	// ...also do this for the rest of folders because
	2666	// asort() is not properly sorting case sensitive names
681a59	2667	while (list($key, $folder) = each($folders)) {
A	2668	$a_out[] = $folder;
	2669	unset($folders[$key]);
f219a2	2670	foreach ($folders as $idx => $f) {
A	2671	if (strpos($f, $folder.$delimiter) === 0) {
	2672	$a_out[] = $f;
	2673	unset($folders[$idx]);
681a59	2674	}
f219a2	2675	}
A	2676	reset($folders);
4e17e6	2677	}
T	2678
681a59	2679	return $a_out;
4e17e6	2680	}
T	2681
6d969b	2682	/**
T	2683	* @access private
	2684	*/
aadfa1	2685	function _uid2id($uid, $mbox_name=NULL)
4e17e6	2686	{
aadfa1	2687	if (!$mbox_name)
S	2688	$mbox_name = $this->mailbox;
4e17e6	2689
aadfa1	2690	if (!isset($this->uid_id_map[$mbox_name][$uid]))
S	2691	$this->uid_id_map[$mbox_name][$uid] = iil_C_UID2ID($this->conn, $mbox_name, $uid);
4e17e6	2692
aadfa1	2693	return $this->uid_id_map[$mbox_name][$uid];
4e17e6	2694	}
T	2695
6d969b	2696	/**
T	2697	* @access private
	2698	*/
aadfa1	2699	function _id2uid($id, $mbox_name=NULL)
e6f360	2700	{
aadfa1	2701	if (!$mbox_name)
S	2702	$mbox_name = $this->mailbox;
e6f360	2703
1fb2c8	2704	$index = array_flip((array)$this->uid_id_map[$mbox_name]);
017def	2705	if (isset($index[$id]))
T	2706	$uid = $index[$id];
	2707	else
	2708	{
	2709	$uid = iil_C_ID2UID($this->conn, $mbox_name, $id);
	2710	$this->uid_id_map[$mbox_name][$uid] = $id;
	2711	}
	2712
	2713	return $uid;
1cded8	2714	}
T	2715
	2716
6d969b	2717	/**
T	2718	* Subscribe/unsubscribe a list of mailboxes and update local cache
	2719	* @access private
	2720	*/
4e17e6	2721	function _change_subscription($a_mboxes, $mode)
T	2722	{
	2723	$updated = FALSE;
	2724
	2725	if (is_array($a_mboxes))
aadfa1	2726	foreach ($a_mboxes as $i => $mbox_name)
4e17e6	2727	{
aadfa1	2728	$mailbox = $this->_mod_mailbox($mbox_name);
4e17e6	2729	$a_mboxes[$i] = $mailbox;
T	2730
	2731	if ($mode=='subscribe')
	2732	$result = iil_C_Subscribe($this->conn, $mailbox);
	2733	else if ($mode=='unsubscribe')
	2734	$result = iil_C_UnSubscribe($this->conn, $mailbox);
	2735
	2736	if ($result>=0)
	2737	$updated = TRUE;
	2738	}
	2739
	2740	// get cached mailbox list
	2741	if ($updated)
	2742	{
	2743	$a_mailbox_cache = $this->get_cache('mailboxes');
	2744	if (!is_array($a_mailbox_cache))
	2745	return $updated;
	2746
	2747	// modify cached list
	2748	if ($mode=='subscribe')
	2749	$a_mailbox_cache = array_merge($a_mailbox_cache, $a_mboxes);
	2750	else if ($mode=='unsubscribe')
	2751	$a_mailbox_cache = array_diff($a_mailbox_cache, $a_mboxes);
	2752
	2753	// write mailboxlist to cache
	2754	$this->update_cache('mailboxes', $this->_sort_mailbox_list($a_mailbox_cache));
	2755	}
	2756
	2757	return $updated;
	2758	}
	2759
	2760
6d969b	2761	/**
T	2762	* Increde/decrese messagecount for a specific mailbox
	2763	* @access private
	2764	*/
aadfa1	2765	function _set_messagecount($mbox_name, $mode, $increment)
4e17e6	2766	{
T	2767	$a_mailbox_cache = FALSE;
aadfa1	2768	$mailbox = $mbox_name ? $mbox_name : $this->mailbox;
4e17e6	2769	$mode = strtoupper($mode);
T	2770
	2771	$a_mailbox_cache = $this->get_cache('messagecount');
	2772
	2773	if (!is_array($a_mailbox_cache[$mailbox]) \|\| !isset($a_mailbox_cache[$mailbox][$mode]) \|\| !is_numeric($increment))
	2774	return FALSE;
	2775
	2776	// add incremental value to messagecount
	2777	$a_mailbox_cache[$mailbox][$mode] += $increment;
31b2ce	2778
T	2779	// there's something wrong, delete from cache
	2780	if ($a_mailbox_cache[$mailbox][$mode] < 0)
	2781	unset($a_mailbox_cache[$mailbox][$mode]);
4e17e6	2782
T	2783	// write back to cache
	2784	$this->update_cache('messagecount', $a_mailbox_cache);
	2785
	2786	return TRUE;
	2787	}
	2788
	2789
6d969b	2790	/**
T	2791	* Remove messagecount of a specific mailbox from cache
	2792	* @access private
	2793	*/
aadfa1	2794	function _clear_messagecount($mbox_name='')
4e17e6	2795	{
T	2796	$a_mailbox_cache = FALSE;
aadfa1	2797	$mailbox = $mbox_name ? $mbox_name : $this->mailbox;
4e17e6	2798
T	2799	$a_mailbox_cache = $this->get_cache('messagecount');
	2800
	2801	if (is_array($a_mailbox_cache[$mailbox]))
	2802	{
	2803	unset($a_mailbox_cache[$mailbox]);
	2804	$this->update_cache('messagecount', $a_mailbox_cache);
	2805	}
	2806	}
	2807
	2808
6d969b	2809	/**
T	2810	* Split RFC822 header string into an associative array
	2811	* @access private
	2812	*/
8d4bcd	2813	function _parse_headers($headers)
T	2814	{
	2815	$a_headers = array();
	2816	$lines = explode("\n", $headers);
	2817	$c = count($lines);
	2818	for ($i=0; $i<$c; $i++)
	2819	{
	2820	if ($p = strpos($lines[$i], ': '))
	2821	{
	2822	$field = strtolower(substr($lines[$i], 0, $p));
	2823	$value = trim(substr($lines[$i], $p+1));
	2824	if (!empty($value))
	2825	$a_headers[$field] = $value;
	2826	}
	2827	}
	2828
	2829	return $a_headers;
	2830	}
	2831
	2832
6d969b	2833	/**
T	2834	* @access private
	2835	*/
f11541	2836	function _parse_address_list($str, $decode=true)
4e17e6	2837	{
d04d20	2838	// remove any newlines and carriage returns before
5a6ad2	2839	$a = $this->_explode_quoted_string('[,;]', preg_replace( "/[\r\n]/", " ", $str));
4e17e6	2840	$result = array();
41fa0b	2841
4e17e6	2842	foreach ($a as $key => $val)
T	2843	{
568ba3	2844	$val = preg_replace("/([\"\w])</", "$1 <", $val);
f11541	2845	$sub_a = $this->_explode_quoted_string(' ', $decode ? $this->decode_header($val) : $val);
41fa0b	2846	$result[$key]['name'] = '';
T	2847
4e17e6	2848	foreach ($sub_a as $k => $v)
T	2849	{
3cf664	2850	if (strpos($v, '@') > 0)
4e17e6	2851	$result[$key]['address'] = str_replace('<', '', str_replace('>', '', $v));
T	2852	else
	2853	$result[$key]['name'] .= (empty($result[$key]['name'])?'':' ').str_replace("\"",'',stripslashes($v));
	2854	}
	2855
	2856	if (empty($result[$key]['name']))
41fa0b	2857	$result[$key]['name'] = $result[$key]['address'];
4e17e6	2858	}
T	2859
	2860	return $result;
	2861	}
	2862
	2863
6d969b	2864	/**
T	2865	* @access private
	2866	*/
4e17e6	2867	function _explode_quoted_string($delimiter, $string)
T	2868	{
5a6ad2	2869	$result = array();
T	2870	$strlen = strlen($string);
	2871	for ($q=$p=$i=0; $i < $strlen; $i++)
	2872	{
	2873	if ($string{$i} == "\"" && $string{$i-1} != "\\")
	2874	$q = $q ? false : true;
	2875	else if (!$q && preg_match("/$delimiter/", $string{$i}))
	2876	{
	2877	$result[] = substr($string, $p, $i - $p);
	2878	$p = $i + 1;
	2879	}
	2880	}
4e17e6	2881
5a6ad2	2882	$result[] = substr($string, $p);
4e17e6	2883	return $result;
T	2884	}
6d969b	2885
T	2886	} // end class rcube_imap
4e17e6	2887
8d4bcd	2888
T	2889	/**
	2890	* Class representing a message part
6d969b	2891	*
T	2892	* @package Mail
8d4bcd	2893	*/
T	2894	class rcube_message_part
	2895	{
	2896	var $mime_id = '';
	2897	var $ctype_primary = 'text';
	2898	var $ctype_secondary = 'plain';
	2899	var $mimetype = 'text/plain';
	2900	var $disposition = '';
5cc4b1	2901	var $filename = '';
8d4bcd	2902	var $encoding = '8bit';
T	2903	var $charset = '';
	2904	var $size = 0;
	2905	var $headers = array();
	2906	var $d_parameters = array();
	2907	var $ctype_parameters = array();
	2908
	2909	}
4e17e6	2910
T	2911
7e93ff	2912	/**
T	2913	* Class for sorting an array of iilBasicHeader objects in a predetermined order.
	2914	*
6d969b	2915	* @package Mail
7e93ff	2916	* @author Eric Stadtherr
T	2917	*/
	2918	class rcube_header_sorter
	2919	{
	2920	var $sequence_numbers = array();
	2921
	2922	/**
6d969b	2923	* Set the predetermined sort order.
7e93ff	2924	*
6d969b	2925	* @param array Numerically indexed array of IMAP message sequence numbers
7e93ff	2926	*/
T	2927	function set_sequence_numbers($seqnums)
	2928	{
05d180	2929	$this->sequence_numbers = array_flip($seqnums);
7e93ff	2930	}
T	2931
	2932	/**
6d969b	2933	* Sort the array of header objects
7e93ff	2934	*
6d969b	2935	* @param array Array of iilBasicHeader objects indexed by UID
7e93ff	2936	*/
T	2937	function sort_headers(&$headers)
	2938	{
	2939	/*
	2940	* uksort would work if the keys were the sequence number, but unfortunately
	2941	* the keys are the UIDs. We'll use uasort instead and dereference the value
	2942	* to get the sequence number (in the "id" field).
	2943	*
	2944	* uksort($headers, array($this, "compare_seqnums"));
	2945	*/
	2946	uasort($headers, array($this, "compare_seqnums"));
	2947	}
	2948
	2949	/**
	2950	* Sort method called by uasort()
	2951	*/
	2952	function compare_seqnums($a, $b)
	2953	{
	2954	// First get the sequence number from the header object (the 'id' field).
	2955	$seqa = $a->id;
	2956	$seqb = $b->id;
	2957
	2958	// then find each sequence number in my ordered list
05d180	2959	$posa = isset($this->sequence_numbers[$seqa]) ? intval($this->sequence_numbers[$seqa]) : -1;
T	2960	$posb = isset($this->sequence_numbers[$seqb]) ? intval($this->sequence_numbers[$seqb]) : -1;
7e93ff	2961
T	2962	// return the relative position as the comparison value
05d180	2963	return $posa - $posb;
7e93ff	2964	}
T	2965	}
4e17e6	2966
T	2967
7e93ff	2968	/**
T	2969	* Add quoted-printable encoding to a given string
	2970	*
6d969b	2971	* @param string String to encode
T	2972	* @param int Add new line after this number of characters
	2973	* @param boolean True if spaces should be converted into =20
	2974	* @return string Encoded string
7e93ff	2975	*/
T	2976	function quoted_printable_encode($input, $line_max=76, $space_conv=false)
4e17e6	2977	{
T	2978	$hex = array('0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F');
	2979	$lines = preg_split("/(?:\r\n\|\r\|\n)/", $input);
	2980	$eol = "\r\n";
	2981	$escape = "=";
	2982	$output = "";
	2983
	2984	while( list(, $line) = each($lines))
	2985	{
	2986	//$line = rtrim($line); // remove trailing white space -> no =20\r\n necessary
	2987	$linlen = strlen($line);
	2988	$newline = "";
	2989	for($i = 0; $i < $linlen; $i++)
	2990	{
	2991	$c = substr( $line, $i, 1 );
	2992	$dec = ord( $c );
	2993	if ( ( $i == 0 ) && ( $dec == 46 ) ) // convert first point in the line into =2E
	2994	{
	2995	$c = "=2E";
	2996	}
	2997	if ( $dec == 32 )
	2998	{
	2999	if ( $i == ( $linlen - 1 ) ) // convert space at eol only
	3000	{
	3001	$c = "=20";
	3002	}
	3003	else if ( $space_conv )
	3004	{
	3005	$c = "=20";
	3006	}
	3007	}
	3008	else if ( ($dec == 61) \|\| ($dec < 32 ) \|\| ($dec > 126) ) // always encode "\t", which is not required
	3009	{
	3010	$h2 = floor($dec/16);
	3011	$h1 = floor($dec%16);
	3012	$c = $escape.$hex["$h2"].$hex["$h1"];
	3013	}
	3014
	3015	if ( (strlen($newline) + strlen($c)) >= $line_max ) // CRLF is not counted
	3016	{
	3017	$output .= $newline.$escape.$eol; // soft line break; " =\r\n" is okay
	3018	$newline = "";
	3019	// check if newline first character will be point or not
	3020	if ( $dec == 46 )
	3021	{
	3022	$c = "=2E";
	3023	}
	3024	}
	3025	$newline .= $c;
	3026	} // end of for
	3027	$output .= $newline.$eol;
	3028	} // end of while
	3029
	3030	return trim($output);
	3031	}
	3032
8d4bcd	3033