4 +-----------------------------------------------------------------------+
5 | program/include/rcube_imap.inc |
7 | This file is part of the RoundCube Webmail client |
8 | Copyright (C) 2005-2007, RoundCube Dev. - Switzerland |
9 | Licensed under the GNU GPL |
12 | IMAP wrapper that implements the Iloha IMAP Library (IIL) |
13 | See http://ilohamail.org/ for details |
15 +-----------------------------------------------------------------------+
16 | Author: Thomas Bruederli <roundcube@gmail.com> |
17 +-----------------------------------------------------------------------+
19 $Id: rcube_imap.inc 1050 2008-02-12 14:06:26Z thomasb $
25 * Obtain classes from the Iloha IMAP library
27 require_once('lib/imap.inc');
28 require_once('lib/mime.inc');
32 * Interface class for accessing an IMAP server
34 * This is a wrapper that implements the Iloha IMAP Library (IIL)
37 * @author Thomas Bruederli <roundcube@gmail.com>
39 * @link http://ilohamail.org
47 var $mailbox = 'INBOX';
50 var $sort_field = 'date';
51 var $sort_order = 'DESC';
52 var $delimiter = NULL;
53 var $caching_enabled = FALSE;
54 var $default_folders = array('INBOX');
55 var $default_folders_lc = array('inbox');
57 var $cache_keys = array();
58 var $cache_changes = array();
59 var $uid_id_map = array();
60 var $msg_headers = array();
61 var $capabilities = array();
62 var $skip_deleted = FALSE;
63 var $search_set = NULL;
64 var $search_subject = '';
65 var $search_string = '';
66 var $search_charset = '';
74 * @param object DB Database connection
76 function __construct($db_conn)
83 * PHP 4 object constructor
85 * @see rcube_imap::__construct
87 function rcube_imap($db_conn)
89 $this->__construct($db_conn);
94 * Connect to an IMAP server
96 * @param string Host to connect
97 * @param string Username for IMAP account
98 * @param string Password for IMAP account
99 * @param number Port to connect to
100 * @param string SSL schema (either ssl or tls) or null if plain connection
101 * @return boolean TRUE on success, FALSE on failure
104 function connect($host, $user, $pass, $port=143, $use_ssl=null)
106 global $ICL_SSL, $ICL_PORT, $IMAP_USE_INTERNAL_DATE;
108 // check for Open-SSL support in PHP build
109 if ($use_ssl && in_array('openssl', get_loaded_extensions()))
110 $ICL_SSL = $use_ssl == 'imaps' ? 'ssl' : $use_ssl;
113 raise_error(array('code' => 403, 'type' => 'imap', 'file' => __FILE__,
114 'message' => 'Open SSL not available;'), TRUE, FALSE);
119 $IMAP_USE_INTERNAL_DATE = false;
121 $this->conn = iil_Connect($host, $user, $pass, array('imap' => 'check'));
126 $this->ssl = $use_ssl;
128 // print trace mesages
129 if ($this->conn && ($this->debug_level & 8))
130 console($this->conn->message);
133 else if (!$this->conn && $GLOBALS['iil_error'])
135 $this->error_code = $GLOBALS['iil_errornum'];
136 raise_error(array('code' => 403,
138 'message' => $GLOBALS['iil_error']), TRUE, FALSE);
141 // get server properties
144 $this->_parse_capability($this->conn->capability);
146 if (!empty($this->conn->delimiter))
147 $this->delimiter = $this->conn->delimiter;
148 if (!empty($this->conn->rootdir))
150 $this->set_rootdir($this->conn->rootdir);
151 $this->root_ns = ereg_replace('[\.\/]$', '', $this->conn->rootdir);
155 return $this->conn ? TRUE : FALSE;
160 * Close IMAP connection
161 * Usually done on script shutdown
168 iil_Close($this->conn);
173 * Close IMAP connection and re-connect
174 * This is used to avoid some strange socket errors when talking to Courier IMAP
181 $this->connect($this->host, $this->user, $this->pass, $this->port, $this->ssl);
186 * Set a root folder for the IMAP connection.
188 * Only folders within this root folder will be displayed
189 * and all folder paths will be translated using this folder name
191 * @param string Root folder
194 function set_rootdir($root)
196 if (ereg('[\.\/]$', $root)) //(substr($root, -1, 1)==='/')
197 $root = substr($root, 0, -1);
199 $this->root_dir = $root;
201 if (empty($this->delimiter))
202 $this->get_hierarchy_delimiter();
207 * This list of folders will be listed above all other folders
209 * @param array Indexed list of folder names
212 function set_default_mailboxes($arr)
216 $this->default_folders = $arr;
217 $this->default_folders_lc = array();
219 // add inbox if not included
220 if (!in_array_nocase('INBOX', $this->default_folders))
221 array_unshift($this->default_folders, 'INBOX');
223 // create a second list with lower cased names
224 foreach ($this->default_folders as $mbox)
225 $this->default_folders_lc[] = strtolower($mbox);
231 * Set internal mailbox reference.
233 * All operations will be perfomed on this mailbox/folder
235 * @param string Mailbox/Folder name
238 function set_mailbox($new_mbox)
240 $mailbox = $this->_mod_mailbox($new_mbox);
242 if ($this->mailbox == $mailbox)
245 $this->mailbox = $mailbox;
247 // clear messagecount cache for this mailbox
248 $this->_clear_messagecount($mailbox);
253 * Set internal list page
255 * @param number Page number to list
258 function set_page($page)
260 $this->list_page = (int)$page;
265 * Set internal page size
267 * @param number Number of messages to display on one page
270 function set_pagesize($size)
272 $this->page_size = (int)$size;
277 * Save a set of message ids for future message listing methods
279 * @param array List of IMAP fields to search in
280 * @param string Search string
281 * @param array List of message ids or NULL if empty
283 function set_search_set($subject, $str=null, $msgs=null, $charset=null)
285 if (is_array($subject) && $str == null && $msgs == null)
286 list($subject, $str, $msgs, $charset) = $subject;
287 if ($msgs != null && !is_array($msgs))
288 $msgs = split(',', $msgs);
290 $this->search_subject = $subject;
291 $this->search_string = $str;
292 $this->search_set = (array)$msgs;
293 $this->search_charset = $charset;
298 * Return the saved search set as hash array
299 * @return array Search set
301 function get_search_set()
303 return array($this->search_subject, $this->search_string, $this->search_set, $this->search_charset);
308 * Returns the currently used mailbox name
310 * @return string Name of the mailbox/folder
313 function get_mailbox_name()
315 return $this->conn ? $this->_mod_mailbox($this->mailbox, 'out') : '';
320 * Returns the IMAP server's capability
322 * @param string Capability name
323 * @return mixed Capability value or TRUE if supported, FALSE if not
326 function get_capability($cap)
328 $cap = strtoupper($cap);
329 return $this->capabilities[$cap];
334 * Returns the delimiter that is used by the IMAP server for folder separation
336 * @return string Delimiter string
339 function get_hierarchy_delimiter()
341 if ($this->conn && empty($this->delimiter))
342 $this->delimiter = iil_C_GetHierarchyDelimiter($this->conn);
344 if (empty($this->delimiter))
345 $this->delimiter = '/';
347 return $this->delimiter;
352 * Public method for mailbox listing.
354 * Converts mailbox name with root dir first
356 * @param string Optional root folder
357 * @param string Optional filter for mailbox listing
358 * @return array List of mailboxes/folders
361 function list_mailboxes($root='', $filter='*')
364 $a_mboxes = $this->_list_mailboxes($root, $filter);
366 foreach ($a_mboxes as $mbox_row)
368 $name = $this->_mod_mailbox($mbox_row, 'out');
373 // INBOX should always be available
374 if (!in_array_nocase('INBOX', $a_out))
375 array_unshift($a_out, 'INBOX');
378 $a_out = $this->_sort_mailbox_list($a_out);
385 * Private method for mailbox listing
387 * @return array List of mailboxes/folders
388 * @see rcube_imap::list_mailboxes()
391 function _list_mailboxes($root='', $filter='*')
393 $a_defaults = $a_out = array();
395 // get cached folder list
396 $a_mboxes = $this->get_cache('mailboxes');
397 if (is_array($a_mboxes))
400 // retrieve list of folders from IMAP server
401 $a_folders = iil_C_ListSubscribed($this->conn, $this->_mod_mailbox($root), $filter);
403 if (!is_array($a_folders) || !sizeof($a_folders))
404 $a_folders = array();
406 // write mailboxlist to cache
407 $this->update_cache('mailboxes', $a_folders);
414 * Get message count for a specific mailbox
416 * @param string Mailbox/folder name
417 * @param string Mode for count [ALL|UNSEEN|RECENT]
418 * @param boolean Force reading from server and update cache
419 * @return int Number of messages
422 function messagecount($mbox_name='', $mode='ALL', $force=FALSE)
424 $mailbox = $mbox_name ? $this->_mod_mailbox($mbox_name) : $this->mailbox;
425 return $this->_messagecount($mailbox, $mode, $force);
430 * Private method for getting nr of messages
433 * @see rcube_imap::messagecount()
435 function _messagecount($mailbox='', $mode='ALL', $force=FALSE)
437 $a_mailbox_cache = FALSE;
438 $mode = strtoupper($mode);
441 $mailbox = $this->mailbox;
444 if ($this->search_string && $mailbox == $this->mailbox && $mode == 'ALL' && !$force)
445 return count((array)$this->search_set);
447 $a_mailbox_cache = $this->get_cache('messagecount');
449 // return cached value
450 if (!$force && is_array($a_mailbox_cache[$mailbox]) && isset($a_mailbox_cache[$mailbox][$mode]))
451 return $a_mailbox_cache[$mailbox][$mode];
453 // RECENT count is fetched abit different
454 if ($mode == 'RECENT')
455 $count = iil_C_CheckForRecent($this->conn, $mailbox);
457 // use SEARCH for message counting
458 else if ($this->skip_deleted)
460 $search_str = "ALL UNDELETED";
462 // get message count and store in cache
463 if ($mode == 'UNSEEN')
464 $search_str .= " UNSEEN";
466 // get message count using SEARCH
467 // not very performant but more precise (using UNDELETED)
469 $index = $this->_search_index($mailbox, $search_str);
470 if (is_array($index))
472 $str = implode(",", $index);
474 $count = count($index);
479 if ($mode == 'UNSEEN')
480 $count = iil_C_CountUnseen($this->conn, $mailbox);
482 $count = iil_C_CountMessages($this->conn, $mailbox);
485 if (!is_array($a_mailbox_cache[$mailbox]))
486 $a_mailbox_cache[$mailbox] = array();
488 $a_mailbox_cache[$mailbox][$mode] = (int)$count;
490 // write back to cache
491 $this->update_cache('messagecount', $a_mailbox_cache);
498 * Public method for listing headers
499 * convert mailbox name with root dir first
501 * @param string Mailbox/folder name
502 * @param int Current page to list
503 * @param string Header field to sort by
504 * @param string Sort order [ASC|DESC]
505 * @return array Indexed array with message header objects
508 function list_headers($mbox_name='', $page=NULL, $sort_field=NULL, $sort_order=NULL)
510 $mailbox = $mbox_name ? $this->_mod_mailbox($mbox_name) : $this->mailbox;
511 return $this->_list_headers($mailbox, $page, $sort_field, $sort_order);
516 * Private method for listing message headers
519 * @see rcube_imap::list_headers
521 function _list_headers($mailbox='', $page=NULL, $sort_field=NULL, $sort_order=NULL, $recursive=FALSE)
523 if (!strlen($mailbox))
526 // use saved message set
527 if ($this->search_string && $mailbox == $this->mailbox)
528 return $this->_list_header_set($mailbox, $this->search_set, $page, $sort_field, $sort_order);
530 $this->_set_sort_order($sort_field, $sort_order);
532 $max = $this->_messagecount($mailbox);
533 $start_msg = ($this->list_page-1) * $this->page_size;
535 list($begin, $end) = $this->_get_message_range($max, $page);
541 $headers_sorted = FALSE;
542 $cache_key = $mailbox.'.msg';
543 $cache_status = $this->check_cache_status($mailbox, $cache_key);
545 // cache is OK, we can get all messages from local cache
548 $a_msg_headers = $this->get_message_cache($cache_key, $start_msg, $start_msg+$this->page_size, $this->sort_field, $this->sort_order);
549 $headers_sorted = TRUE;
551 // cache is dirty, sync it
552 else if ($this->caching_enabled && $cache_status==-1 && !$recursive)
554 $this->sync_header_index($mailbox);
555 return $this->_list_headers($mailbox, $page, $this->sort_field, $this->sort_order, TRUE);
559 // retrieve headers from IMAP
560 if ($this->get_capability('sort') && ($msg_index = iil_C_Sort($this->conn, $mailbox, $this->sort_field, $this->skip_deleted ? 'UNDELETED' : '')))
562 $msgs = $msg_index[$begin];
563 for ($i=$begin+1; $i < $end; $i++)
564 $msgs = $msgs.','.$msg_index[$i];
568 $msgs = sprintf("%d:%d", $begin+1, $end);
571 for ($msg_seqnum = $begin; $msg_seqnum <= $end; $msg_seqnum++)
572 $msg_index[$i++] = $msg_seqnum;
575 // use this class for message sorting
576 $sorter = new rcube_header_sorter();
577 $sorter->set_sequence_numbers($msg_index);
579 // fetch reuested headers from server
580 $a_msg_headers = array();
581 $deleted_count = $this->_fetch_headers($mailbox, $msgs, $a_msg_headers, $cache_key);
583 // delete cached messages with a higher index than $max+1
584 // Changed $max to $max+1 to fix this bug : #1484295
585 $this->clear_message_cache($cache_key, $max + 1);
588 // kick child process to sync cache
594 // return empty array if no messages found
595 if (!is_array($a_msg_headers) || empty($a_msg_headers))
599 // if not already sorted
600 if (!$headers_sorted)
602 $sorter->sort_headers($a_msg_headers);
604 if ($this->sort_order == 'DESC')
605 $a_msg_headers = array_reverse($a_msg_headers);
608 return array_values($a_msg_headers);
614 * Public method for listing a specific set of headers
615 * convert mailbox name with root dir first
617 * @param string Mailbox/folder name
618 * @param array List of message ids to list
619 * @param int Current page to list
620 * @param string Header field to sort by
621 * @param string Sort order [ASC|DESC]
622 * @return array Indexed array with message header objects
625 function list_header_set($mbox_name='', $msgs, $page=NULL, $sort_field=NULL, $sort_order=NULL)
627 $mailbox = $mbox_name ? $this->_mod_mailbox($mbox_name) : $this->mailbox;
628 return $this->_list_header_set($mailbox, $msgs, $page, $sort_field, $sort_order);
633 * Private method for listing a set of message headers
636 * @see rcube_imap::list_header_set()
638 function _list_header_set($mailbox, $msgs, $page=NULL, $sort_field=NULL, $sort_order=NULL)
640 // also accept a comma-separated list of message ids
641 if (is_string($msgs))
642 $msgs = split(',', $msgs);
644 if (!strlen($mailbox) || empty($msgs))
647 $this->_set_sort_order($sort_field, $sort_order);
650 $start_msg = ($this->list_page-1) * $this->page_size;
652 // fetch reuested headers from server
653 $a_msg_headers = array();
654 $this->_fetch_headers($mailbox, join(',', $msgs), $a_msg_headers, NULL);
656 // return empty array if no messages found
657 if (!is_array($a_msg_headers) || empty($a_msg_headers))
660 // if not already sorted
661 $a_msg_headers = iil_SortHeaders($a_msg_headers, $this->sort_field, $this->sort_order);
663 // only return the requested part of the set
664 return array_slice(array_values($a_msg_headers), $start_msg, min($max-$start_msg, $this->page_size));
669 * Helper function to get first and last index of the requested set
671 * @param int message count
672 * @param mixed page number to show, or string 'all'
673 * @return array array with two values: first index, last index
676 function _get_message_range($max, $page)
678 $start_msg = ($this->list_page-1) * $this->page_size;
685 else if ($this->sort_order=='DESC')
687 $begin = $max - $this->page_size - $start_msg;
688 $end = $max - $start_msg;
693 $end = $start_msg + $this->page_size;
696 if ($begin < 0) $begin = 0;
697 if ($end < 0) $end = $max;
698 if ($end > $max) $end = $max;
700 return array($begin, $end);
706 * Fetches message headers
709 * @param string Mailbox name
710 * @param string Message index to fetch
711 * @param array Reference to message headers array
712 * @param array Array with cache index
713 * @return int Number of deleted messages
716 function _fetch_headers($mailbox, $msgs, &$a_msg_headers, $cache_key)
718 // cache is incomplete
719 $cache_index = $this->get_message_cache_index($cache_key);
721 // fetch reuested headers from server
722 $a_header_index = iil_C_FetchHeaders($this->conn, $mailbox, $msgs);
725 if (!empty($a_header_index))
727 foreach ($a_header_index as $i => $headers)
729 if ($headers->deleted && $this->skip_deleted)
732 if ($cache_index[$headers->id] && $cache_index[$headers->id] == $headers->uid)
733 $this->remove_message_cache($cache_key, $headers->id);
739 // add message to cache
740 if ($this->caching_enabled && $cache_index[$headers->id] != $headers->uid)
741 $this->add_message_cache($cache_key, $headers->id, $headers);
743 $a_msg_headers[$headers->uid] = $headers;
747 return $deleted_count;
752 * Return sorted array of message UIDs
754 * @param string Mailbox to get index from
755 * @param string Sort column
756 * @param string Sort order [ASC, DESC]
757 * @return array Indexed array with message ids
759 function message_index($mbox_name='', $sort_field=NULL, $sort_order=NULL)
761 $this->_set_sort_order($sort_field, $sort_order);
763 $mailbox = $mbox_name ? $this->_mod_mailbox($mbox_name) : $this->mailbox;
764 $key = "{$mailbox}:{$this->sort_field}:{$this->sort_order}:{$this->search_string}.msgi";
766 // we have a saved search result. get index from there
767 if (!isset($this->cache[$key]) && $this->search_string && $mailbox == $this->mailbox)
769 $this->cache[$key] = $a_msg_headers = array();
770 $this->_fetch_headers($mailbox, join(',', $this->search_set), $a_msg_headers, NULL);
772 foreach (iil_SortHeaders($a_msg_headers, $this->sort_field, $this->sort_order) as $i => $msg)
773 $this->cache[$key][] = $msg->uid;
776 // have stored it in RAM
777 if (isset($this->cache[$key]))
778 return $this->cache[$key];
781 $cache_key = $mailbox.'.msg';
782 $cache_status = $this->check_cache_status($mailbox, $cache_key);
787 $a_index = $this->get_message_cache_index($cache_key, TRUE, $this->sort_field, $this->sort_order);
788 return array_values($a_index);
792 // fetch complete message index
793 $msg_count = $this->_messagecount($mailbox);
794 if ($this->get_capability('sort') && ($a_index = iil_C_Sort($this->conn, $mailbox, $this->sort_field, '', TRUE)))
796 if ($this->sort_order == 'DESC')
797 $a_index = array_reverse($a_index);
799 $this->cache[$key] = $a_index;
804 $a_index = iil_C_FetchHeaderIndex($this->conn, $mailbox, "1:$msg_count", $this->sort_field);
805 $a_uids = iil_C_FetchUIDs($this->conn, $mailbox);
807 if ($this->sort_order=="ASC")
809 else if ($this->sort_order=="DESC")
813 $this->cache[$key] = array();
814 foreach ($a_index as $index => $value)
815 $this->cache[$key][$i++] = $a_uids[$index];
818 return $this->cache[$key];
825 function sync_header_index($mailbox)
827 $cache_key = $mailbox.'.msg';
828 $cache_index = $this->get_message_cache_index($cache_key);
829 $msg_count = $this->_messagecount($mailbox);
831 // fetch complete message index
832 $a_message_index = iil_C_FetchHeaderIndex($this->conn, $mailbox, "1:$msg_count", 'UID');
834 foreach ($a_message_index as $id => $uid)
836 // message in cache at correct position
837 if ($cache_index[$id] == $uid)
839 unset($cache_index[$id]);
843 // message in cache but in wrong position
844 if (in_array((string)$uid, $cache_index, TRUE))
846 unset($cache_index[$id]);
849 // other message at this position
850 if (isset($cache_index[$id]))
852 $this->remove_message_cache($cache_key, $id);
853 unset($cache_index[$id]);
857 // fetch complete headers and add to cache
858 $headers = iil_C_FetchHeader($this->conn, $mailbox, $id);
859 $this->add_message_cache($cache_key, $headers->id, $headers);
862 // those ids that are still in cache_index have been deleted
863 if (!empty($cache_index))
865 foreach ($cache_index as $id => $uid)
866 $this->remove_message_cache($cache_key, $id);
872 * Invoke search request to IMAP server
874 * @param string mailbox name to search in
875 * @param string search criteria (ALL, TO, FROM, SUBJECT, etc)
876 * @param string search string
877 * @return array search results as list of message ids
880 function search($mbox_name='', $criteria='ALL', $str=NULL, $charset=NULL)
882 $mailbox = $mbox_name ? $this->_mod_mailbox($mbox_name) : $this->mailbox;
884 // have an array of criterias => execute multiple searches
885 if (is_array($criteria) && $str)
888 foreach ($criteria as $crit)
889 if ($search_result = $this->search($mbox_name, $crit, $str, $charset))
890 $results = array_merge($results, $search_result);
892 $results = array_unique($results);
893 $this->set_search_set($criteria, $str, $results, $charset);
896 else if ($str && $criteria)
898 $search = (!empty($charset) ? "CHARSET $charset " : '') . sprintf("%s {%d}\r\n%s", $criteria, strlen($str), $str);
899 $results = $this->_search_index($mailbox, $search);
901 // try search with ISO charset (should be supported by server)
902 if (empty($results) && !empty($charset) && $charset!='ISO-8859-1')
903 $results = $this->search($mbox_name, $criteria, rcube_charset_convert($str, $charset, 'ISO-8859-1'), 'ISO-8859-1');
905 $this->set_search_set($criteria, $str, $results, $charset);
909 return $this->_search_index($mailbox, $criteria);
914 * Private search method
916 * @return array search results as list of message ids
918 * @see rcube_imap::search()
920 function _search_index($mailbox, $criteria='ALL')
922 $a_messages = iil_C_Search($this->conn, $mailbox, $criteria);
923 // clean message list (there might be some empty entries)
924 if (is_array($a_messages))
926 foreach ($a_messages as $i => $val)
928 unset($a_messages[$i]);
936 * Refresh saved search set
938 * @return array Current search set
940 function refresh_search()
942 if (!empty($this->search_subject) && !empty($this->search_string))
943 $this->search_set = $this->search('', $this->search_subject, $this->search_string, $this->search_charset);
945 return $this->get_search_set();
950 * Check if the given message ID is part of the current search set
952 * @return boolean True on match or if no search request is stored
954 function in_searchset($msgid)
956 if (!empty($this->search_string))
957 return in_array("$msgid", (array)$this->search_set, true);
964 * Return message headers object of a specific message
966 * @param int Message ID
967 * @param string Mailbox to read from
968 * @param boolean True if $id is the message UID
969 * @return object Message headers representation
971 function get_headers($id, $mbox_name=NULL, $is_uid=TRUE)
973 $mailbox = $mbox_name ? $this->_mod_mailbox($mbox_name) : $this->mailbox;
974 $uid = $is_uid ? $id : $this->_id2uid($id);
976 // get cached headers
977 if ($uid && ($headers = &$this->get_cached_message($mailbox.'.msg', $uid)))
980 $headers = iil_C_FetchHeader($this->conn, $mailbox, $id, $is_uid);
982 // write headers cache
985 if ($headers->uid && $headers->id)
986 $this->uid_id_map[$mailbox][$headers->uid] = $headers->id;
988 $this->add_message_cache($mailbox.'.msg', $headers->id, $headers);
996 * Fetch body structure from the IMAP server and build
997 * an object structure similar to the one generated by PEAR::Mail_mimeDecode
999 * @param int Message UID to fetch
1000 * @return object stdClass Message part tree or False on failure
1002 function &get_structure($uid)
1004 $cache_key = $this->mailbox.'.msg';
1005 $headers = &$this->get_cached_message($cache_key, $uid, true);
1007 // return cached message structure
1008 if (is_object($headers) && is_object($headers->structure))
1009 return $headers->structure;
1011 // resolve message sequence number
1012 if (!($msg_id = $this->_uid2id($uid)))
1015 $structure_str = iil_C_FetchStructureString($this->conn, $this->mailbox, $msg_id);
1016 $structure = iml_GetRawStructureArray($structure_str);
1019 // parse structure and add headers
1020 if (!empty($structure))
1022 $this->_msg_id = $msg_id;
1023 $headers = $this->get_headers($uid);
1025 $struct = &$this->_structure_part($structure);
1026 $struct->headers = get_object_vars($headers);
1028 // don't trust given content-type
1029 if (empty($struct->parts) && !empty($struct->headers['ctype']))
1031 $struct->mime_id = '1';
1032 $struct->mimetype = strtolower($struct->headers['ctype']);
1033 list($struct->ctype_primary, $struct->ctype_secondary) = explode('/', $struct->mimetype);
1036 // write structure to cache
1037 if ($this->caching_enabled)
1038 $this->add_message_cache($cache_key, $msg_id, $headers, $struct);
1046 * Build message part object
1050 function &_structure_part($part, $count=0, $parent='')
1052 $struct = new rcube_message_part;
1053 $struct->mime_id = empty($parent) ? (string)$count : "$parent.$count";
1056 if (is_array($part[0]))
1058 $struct->ctype_primary = 'multipart';
1060 // find first non-array entry
1061 for ($i=1; count($part); $i++)
1062 if (!is_array($part[$i]))
1064 $struct->ctype_secondary = strtolower($part[$i]);
1068 $struct->mimetype = 'multipart/'.$struct->ctype_secondary;
1070 $struct->parts = array();
1071 for ($i=0, $count=0; $i<count($part); $i++)
1072 if (is_array($part[$i]) && count($part[$i]) > 5)
1073 $struct->parts[] = $this->_structure_part($part[$i], ++$count, $struct->mime_id);
1080 $struct->ctype_primary = strtolower($part[0]);
1081 $struct->ctype_secondary = strtolower($part[1]);
1082 $struct->mimetype = $struct->ctype_primary.'/'.$struct->ctype_secondary;
1084 // read content type parameters
1085 if (is_array($part[2]))
1087 $struct->ctype_parameters = array();
1088 for ($i=0; $i<count($part[2]); $i+=2)
1089 $struct->ctype_parameters[strtolower($part[2][$i])] = $part[2][$i+1];
1091 if (isset($struct->ctype_parameters['charset']))
1092 $struct->charset = $struct->ctype_parameters['charset'];
1095 // read content encoding
1096 if (!empty($part[5]) && $part[5]!='NIL')
1098 $struct->encoding = strtolower($part[5]);
1099 $struct->headers['content-transfer-encoding'] = $struct->encoding;
1103 if (!empty($part[6]) && $part[6]!='NIL')
1104 $struct->size = intval($part[6]);
1106 // read part disposition
1107 $di = count($part) - 2;
1108 if ((is_array($part[$di]) && count($part[$di]) == 2 && is_array($part[$di][1])) ||
1109 (is_array($part[--$di]) && count($part[$di]) == 2))
1111 $struct->disposition = strtolower($part[$di][0]);
1113 if (is_array($part[$di][1]))
1114 for ($n=0; $n<count($part[$di][1]); $n+=2)
1115 $struct->d_parameters[strtolower($part[$di][1][$n])] = $part[$di][1][$n+1];
1119 if (is_array($part[8]) && $di != 8)
1121 $struct->parts = array();
1122 for ($i=0, $count=0; $i<count($part[8]); $i++)
1123 if (is_array($part[8][$i]) && count($part[8][$i]) > 5)
1124 $struct->parts[] = $this->_structure_part($part[8][$i], ++$count, $struct->mime_id);
1128 if (!empty($part[3]) && $part[3]!='NIL')
1130 $struct->content_id = $part[3];
1131 $struct->headers['content-id'] = $part[3];
1133 if (empty($struct->disposition))
1134 $struct->disposition = 'inline';
1137 // fetch message headers if message/rfc822
1138 if ($struct->ctype_primary=='message')
1140 $headers = iil_C_FetchPartBody($this->conn, $this->mailbox, $this->_msg_id, $struct->mime_id.'.HEADER');
1141 $struct->headers = $this->_parse_headers($headers);
1143 if (is_array($part[8]) && empty($struct->parts))
1144 $struct->parts[] = $this->_structure_part($part[8], ++$count, $struct->mime_id);
1147 // normalize filename property
1148 if ($filename_mime = $struct->d_parameters['filename'] ? $struct->d_parameters['filename'] : $struct->ctype_parameters['name'])
1149 $struct->filename = $this->decode_mime_string($filename_mime);
1150 else if ($filename_encoded = $struct->d_parameters['filename*'] ? $struct->d_parameters['filename*'] : $struct->ctype_parameters['name*'])
1152 // decode filename according to RFC 2231, Section 4
1153 list($filename_charset,, $filename_urlencoded) = split('\'', $filename_encoded);
1154 $struct->filename = rcube_charset_convert(urldecode($filename_urlencoded), $filename_charset);
1156 else if (!empty($struct->headers['content-description']))
1157 $struct->filename = $this->decode_mime_string($struct->headers['content-description']);
1164 * Return a flat array with references to all parts, indexed by part numbers
1166 * @param object rcube_message_part Message body structure
1167 * @return Array with part number -> object pairs
1169 function get_mime_numbers(&$structure)
1172 $this->_get_part_numbers($structure, $a_parts);
1178 * Helper method for recursive calls
1182 function _get_part_numbers(&$part, &$a_parts)
1185 $a_parts[$part->mime_id] = &$part;
1187 if (is_array($part->parts))
1188 for ($i=0; $i<count($part->parts); $i++)
1189 $this->_get_part_numbers($part->parts[$i], $a_parts);
1194 * Fetch message body of a specific message from the server
1196 * @param int Message UID
1197 * @param string Part number
1198 * @param object rcube_message_part Part object created by get_structure()
1199 * @param mixed True to print part, ressource to write part contents in
1200 * @return string Message/part body if not printed
1202 function &get_message_part($uid, $part=1, $o_part=NULL, $print=NULL)
1204 if (!($msg_id = $this->_uid2id($uid)))
1207 // get part encoding if not provided
1208 if (!is_object($o_part))
1210 $structure_str = iil_C_FetchStructureString($this->conn, $this->mailbox, $msg_id);
1211 $structure = iml_GetRawStructureArray($structure_str);
1212 $part_type = iml_GetPartTypeCode($structure, $part);
1213 $o_part = new rcube_message_part;
1214 $o_part->ctype_primary = $part_type==0 ? 'text' : ($part_type==2 ? 'message' : 'other');
1215 $o_part->encoding = strtolower(iml_GetPartEncodingString($structure, $part));
1216 $o_part->charset = iml_GetPartCharset($structure, $part);
1219 // TODO: Add caching for message parts
1223 $mode = $o_part->encoding == 'base64' ? 3 : ($o_part->encoding == 'quoted-printable' ? 1 : 2);
1224 $body = iil_C_HandlePartBody($this->conn, $this->mailbox, $msg_id, $part, $mode);
1226 // we have to decode the part manually before printing
1229 echo $this->mime_decode($body, $o_part->encoding);
1235 $body = iil_C_HandlePartBody($this->conn, $this->mailbox, $msg_id, $part, 1);
1238 if ($o_part->encoding)
1239 $body = $this->mime_decode($body, $o_part->encoding);
1241 // convert charset (if text or message part)
1242 if ($o_part->ctype_primary=='text' || $o_part->ctype_primary=='message')
1244 // assume ISO-8859-1 if no charset specified
1245 if (empty($o_part->charset))
1246 $o_part->charset = 'ISO-8859-1';
1248 $body = rcube_charset_convert($body, $o_part->charset);
1257 * Fetch message body of a specific message from the server
1259 * @param int Message UID
1260 * @return string Message/part body
1261 * @see rcube_imap::get_message_part()
1263 function &get_body($uid, $part=1)
1265 return $this->get_message_part($uid, $part);
1270 * Returns the whole message source as string
1272 * @param int Message UID
1273 * @return string Message source string
1275 function &get_raw_body($uid)
1277 if (!($msg_id = $this->_uid2id($uid)))
1280 $body = iil_C_FetchPartHeader($this->conn, $this->mailbox, $msg_id, NULL);
1281 $body .= iil_C_HandlePartBody($this->conn, $this->mailbox, $msg_id, NULL, 1);
1288 * Sends the whole message source to stdout
1290 * @param int Message UID
1292 function print_raw_body($uid)
1294 if (!($msg_id = $this->_uid2id($uid)))
1297 print iil_C_FetchPartHeader($this->conn, $this->mailbox, $msg_id, NULL);
1299 iil_C_HandlePartBody($this->conn, $this->mailbox, $msg_id, NULL, 2);
1304 * Set message flag to one or several messages
1306 * @param mixed Message UIDs as array or as comma-separated string
1307 * @param string Flag to set: SEEN, UNDELETED, DELETED, RECENT, ANSWERED, DRAFT, MDNSENT
1308 * @return boolean True on success, False on failure
1310 function set_flag($uids, $flag)
1312 $flag = strtoupper($flag);
1314 if (!is_array($uids))
1315 $uids = explode(',',$uids);
1317 foreach ($uids as $uid) {
1318 $msg_ids[$uid] = $this->_uid2id($uid);
1321 if ($flag=='UNDELETED')
1322 $result = iil_C_Undelete($this->conn, $this->mailbox, join(',', array_values($msg_ids)));
1323 else if ($flag=='UNSEEN')
1324 $result = iil_C_Unseen($this->conn, $this->mailbox, join(',', array_values($msg_ids)));
1326 $result = iil_C_Flag($this->conn, $this->mailbox, join(',', array_values($msg_ids)), $flag);
1328 // reload message headers if cached
1329 $cache_key = $this->mailbox.'.msg';
1330 if ($this->caching_enabled)
1332 foreach ($msg_ids as $uid => $id)
1334 if ($cached_headers = $this->get_cached_message($cache_key, $uid))
1336 $this->remove_message_cache($cache_key, $id);
1337 //$this->get_headers($uid);
1341 // close and re-open connection
1342 // this prevents connection problems with Courier
1346 // set nr of messages that were flaged
1347 $count = count($msg_ids);
1349 // clear message count cache
1350 if ($result && $flag=='SEEN')
1351 $this->_set_messagecount($this->mailbox, 'UNSEEN', $count*(-1));
1352 else if ($result && $flag=='UNSEEN')
1353 $this->_set_messagecount($this->mailbox, 'UNSEEN', $count);
1354 else if ($result && $flag=='DELETED')
1355 $this->_set_messagecount($this->mailbox, 'ALL', $count*(-1));
1362 * Append a mail message (source) to a specific mailbox
1364 * @param string Target mailbox
1365 * @param string Message source
1366 * @return boolean True on success, False on error
1368 function save_message($mbox_name, &$message)
1370 $mbox_name = stripslashes($mbox_name);
1371 $mailbox = $this->_mod_mailbox($mbox_name);
1373 // make sure mailbox exists
1374 if (in_array($mailbox, $this->_list_mailboxes()))
1375 $saved = iil_C_Append($this->conn, $mailbox, $message);
1379 // increase messagecount of the target mailbox
1380 $this->_set_messagecount($mailbox, 'ALL', 1);
1388 * Move a message from one mailbox to another
1390 * @param string List of UIDs to move, separated by comma
1391 * @param string Target mailbox
1392 * @param string Source mailbox
1393 * @return boolean True on success, False on error
1395 function move_message($uids, $to_mbox, $from_mbox='')
1397 $to_mbox = stripslashes($to_mbox);
1398 $from_mbox = stripslashes($from_mbox);
1399 $to_mbox = $this->_mod_mailbox($to_mbox);
1400 $from_mbox = $from_mbox ? $this->_mod_mailbox($from_mbox) : $this->mailbox;
1402 // make sure mailbox exists
1403 if (!in_array($to_mbox, $this->_list_mailboxes()))
1405 if (in_array($to_mbox, $this->default_folders))
1406 $this->create_mailbox($to_mbox, TRUE);
1411 // convert the list of uids to array
1412 $a_uids = is_string($uids) ? explode(',', $uids) : (is_array($uids) ? $uids : NULL);
1414 // exit if no message uids are specified
1415 if (!is_array($a_uids))
1418 // convert uids to message ids
1420 foreach ($a_uids as $uid)
1421 $a_mids[] = $this->_uid2id($uid, $from_mbox);
1423 $iil_move = iil_C_Move($this->conn, join(',', $a_mids), $from_mbox, $to_mbox);
1424 $moved = !($iil_move === false || $iil_move < 0);
1426 // send expunge command in order to have the moved message
1427 // really deleted from the source mailbox
1430 $this->_expunge($from_mbox, FALSE);
1431 $this->_clear_messagecount($from_mbox);
1432 $this->_clear_messagecount($to_mbox);
1435 // remove message ids from search set
1436 if ($moved && $this->search_set && $from_mbox == $this->mailbox)
1437 $this->search_set = array_diff($this->search_set, $a_mids);
1439 // update cached message headers
1440 $cache_key = $from_mbox.'.msg';
1441 if ($moved && ($a_cache_index = $this->get_message_cache_index($cache_key)))
1443 $start_index = 100000;
1444 foreach ($a_uids as $uid)
1446 if (($index = array_search($uid, $a_cache_index)) !== FALSE)
1447 $start_index = min($index, $start_index);
1450 // clear cache from the lowest index on
1451 $this->clear_message_cache($cache_key, $start_index);
1459 * Mark messages as deleted and expunge mailbox
1461 * @param string List of UIDs to move, separated by comma
1462 * @param string Source mailbox
1463 * @return boolean True on success, False on error
1465 function delete_message($uids, $mbox_name='')
1467 $mbox_name = stripslashes($mbox_name);
1468 $mailbox = $mbox_name ? $this->_mod_mailbox($mbox_name) : $this->mailbox;
1470 // convert the list of uids to array
1471 $a_uids = is_string($uids) ? explode(',', $uids) : (is_array($uids) ? $uids : NULL);
1473 // exit if no message uids are specified
1474 if (!is_array($a_uids))
1478 // convert uids to message ids
1480 foreach ($a_uids as $uid)
1481 $a_mids[] = $this->_uid2id($uid, $mailbox);
1483 $deleted = iil_C_Delete($this->conn, $mailbox, join(',', $a_mids));
1485 // send expunge command in order to have the deleted message
1486 // really deleted from the mailbox
1489 $this->_expunge($mailbox, FALSE);
1490 $this->_clear_messagecount($mailbox);
1493 // remove message ids from search set
1494 if ($moved && $this->search_set && $mailbox == $this->mailbox)
1495 $this->search_set = array_diff($this->search_set, $a_mids);
1497 // remove deleted messages from cache
1498 $cache_key = $mailbox.'.msg';
1499 if ($deleted && ($a_cache_index = $this->get_message_cache_index($cache_key)))
1501 $start_index = 100000;
1502 foreach ($a_uids as $uid)
1504 if (($index = array_search($uid, $a_cache_index)) !== FALSE)
1505 $start_index = min($index, $start_index);
1508 // clear cache from the lowest index on
1509 $this->clear_message_cache($cache_key, $start_index);
1517 * Clear all messages in a specific mailbox
1519 * @param string Mailbox name
1520 * @return int Above 0 on success
1522 function clear_mailbox($mbox_name=NULL)
1524 $mbox_name = stripslashes($mbox_name);
1525 $mailbox = !empty($mbox_name) ? $this->_mod_mailbox($mbox_name) : $this->mailbox;
1526 $msg_count = $this->_messagecount($mailbox, 'ALL');
1530 $cleared = iil_C_ClearFolder($this->conn, $mailbox);
1532 // make sure the message count cache is cleared as well
1535 $this->clear_message_cache($mailbox.'.msg');
1536 $a_mailbox_cache = $this->get_cache('messagecount');
1537 unset($a_mailbox_cache[$mailbox]);
1538 $this->update_cache('messagecount', $a_mailbox_cache);
1549 * Send IMAP expunge command and clear cache
1551 * @param string Mailbox name
1552 * @param boolean False if cache should not be cleared
1553 * @return boolean True on success
1555 function expunge($mbox_name='', $clear_cache=TRUE)
1557 $mbox_name = stripslashes($mbox_name);
1558 $mailbox = $mbox_name ? $this->_mod_mailbox($mbox_name) : $this->mailbox;
1559 return $this->_expunge($mailbox, $clear_cache);
1564 * Send IMAP expunge command and clear cache
1566 * @see rcube_imap::expunge()
1569 function _expunge($mailbox, $clear_cache=TRUE)
1571 $result = iil_C_Expunge($this->conn, $mailbox);
1573 if ($result>=0 && $clear_cache)
1575 $this->clear_message_cache($mailbox.'.msg');
1576 $this->_clear_messagecount($mailbox);
1583 /* --------------------------------
1585 * --------------------------------*/
1589 * Get a list of all folders available on the IMAP server
1591 * @param string IMAP root dir
1592 * @return array Indexed array with folder names
1594 function list_unsubscribed($root='')
1596 static $sa_unsubscribed;
1598 if (is_array($sa_unsubscribed))
1599 return $sa_unsubscribed;
1601 // retrieve list of folders from IMAP server
1602 $a_mboxes = iil_C_ListMailboxes($this->conn, $this->_mod_mailbox($root), '*');
1604 // modify names with root dir
1605 foreach ($a_mboxes as $mbox_name)
1607 $name = $this->_mod_mailbox($mbox_name, 'out');
1609 $a_folders[] = $name;
1612 // filter folders and sort them
1613 $sa_unsubscribed = $this->_sort_mailbox_list($a_folders);
1614 return $sa_unsubscribed;
1619 * Get mailbox quota information
1622 * @return mixed Quota info or False if not supported
1624 function get_quota()
1626 if ($this->get_capability('QUOTA'))
1627 return iil_C_GetQuota($this->conn);
1634 * Subscribe to a specific mailbox(es)
1636 * @param string Mailbox name(s)
1637 * @return boolean True on success
1639 function subscribe($mbox_name)
1641 if (is_array($mbox_name))
1642 $a_mboxes = $mbox_name;
1643 else if (is_string($mbox_name) && strlen($mbox_name))
1644 $a_mboxes = explode(',', $mbox_name);
1646 // let this common function do the main work
1647 return $this->_change_subscription($a_mboxes, 'subscribe');
1652 * Unsubscribe mailboxes
1654 * @param string Mailbox name(s)
1655 * @return boolean True on success
1657 function unsubscribe($mbox_name)
1659 if (is_array($mbox_name))
1660 $a_mboxes = $mbox_name;
1661 else if (is_string($mbox_name) && strlen($mbox_name))
1662 $a_mboxes = explode(',', $mbox_name);
1664 // let this common function do the main work
1665 return $this->_change_subscription($a_mboxes, 'unsubscribe');
1670 * Create a new mailbox on the server and register it in local cache
1672 * @param string New mailbox name (as utf-7 string)
1673 * @param boolean True if the new mailbox should be subscribed
1674 * @param string Name of the created mailbox, false on error
1676 function create_mailbox($name, $subscribe=FALSE)
1680 // replace backslashes
1681 $name = preg_replace('/[\\\]+/', '-', $name);
1683 // reduce mailbox name to 100 chars
1684 $name = substr($name, 0, 100);
1686 $abs_name = $this->_mod_mailbox($name);
1687 $a_mailbox_cache = $this->get_cache('mailboxes');
1689 if (strlen($abs_name) && (!is_array($a_mailbox_cache) || !in_array($abs_name, $a_mailbox_cache)))
1690 $result = iil_C_CreateFolder($this->conn, $abs_name);
1692 // try to subscribe it
1693 if ($result && $subscribe)
1694 $this->subscribe($name);
1696 return $result ? $name : FALSE;
1701 * Set a new name to an existing mailbox
1703 * @param string Mailbox to rename (as utf-7 string)
1704 * @param string New mailbox name (as utf-7 string)
1705 * @return string Name of the renames mailbox, False on error
1707 function rename_mailbox($mbox_name, $new_name)
1711 // replace backslashes
1712 $name = preg_replace('/[\\\]+/', '-', $new_name);
1714 // encode mailbox name and reduce it to 100 chars
1715 $name = substr($new_name, 0, 100);
1717 // make absolute path
1718 $mailbox = $this->_mod_mailbox($mbox_name);
1719 $abs_name = $this->_mod_mailbox($name);
1721 // check if mailbox is subscribed
1722 $a_subscribed = $this->_list_mailboxes();
1723 $subscribed = in_array($mailbox, $a_subscribed);
1725 // unsubscribe folder
1727 iil_C_UnSubscribe($this->conn, $mailbox);
1729 if (strlen($abs_name))
1730 $result = iil_C_RenameFolder($this->conn, $mailbox, $abs_name);
1734 $delm = $this->get_hierarchy_delimiter();
1736 // check if mailbox children are subscribed
1737 foreach ($a_subscribed as $c_subscribed)
1738 if (preg_match('/^'.preg_quote($mailbox.$delm, '/').'/', $c_subscribed))
1740 iil_C_UnSubscribe($this->conn, $c_subscribed);
1741 iil_C_Subscribe($this->conn, preg_replace('/^'.preg_quote($mailbox, '/').'/', $abs_name, $c_subscribed));
1745 $this->clear_message_cache($mailbox.'.msg');
1746 $this->clear_cache('mailboxes');
1749 // try to subscribe it
1750 if ($result && $subscribed)
1751 iil_C_Subscribe($this->conn, $abs_name);
1753 return $result ? $name : FALSE;
1758 * Remove mailboxes from server
1760 * @param string Mailbox name
1761 * @return boolean True on success
1763 function delete_mailbox($mbox_name)
1767 if (is_array($mbox_name))
1768 $a_mboxes = $mbox_name;
1769 else if (is_string($mbox_name) && strlen($mbox_name))
1770 $a_mboxes = explode(',', $mbox_name);
1772 $all_mboxes = iil_C_ListMailboxes($this->conn, $this->_mod_mailbox($root), '*');
1774 if (is_array($a_mboxes))
1775 foreach ($a_mboxes as $mbox_name)
1777 $mailbox = $this->_mod_mailbox($mbox_name);
1779 // unsubscribe mailbox before deleting
1780 iil_C_UnSubscribe($this->conn, $mailbox);
1782 // send delete command to server
1783 $result = iil_C_DeleteFolder($this->conn, $mailbox);
1787 foreach ($all_mboxes as $c_mbox)
1789 $regex = preg_quote($mailbox . $this->delimiter, '/');
1790 $regex = '/^' . $regex . '/';
1791 if (preg_match($regex, $c_mbox))
1793 iil_C_UnSubscribe($this->conn, $c_mbox);
1794 $result = iil_C_DeleteFolder($this->conn, $c_mbox);
1801 // clear mailboxlist cache
1804 $this->clear_message_cache($mailbox.'.msg');
1805 $this->clear_cache('mailboxes');
1813 * Create all folders specified as default
1815 function create_default_folders()
1817 $a_folders = iil_C_ListMailboxes($this->conn, $this->_mod_mailbox(''), '*');
1818 $a_subscribed = iil_C_ListSubscribed($this->conn, $this->_mod_mailbox(''), '*');
1820 // create default folders if they do not exist
1821 foreach ($this->default_folders as $folder)
1823 $abs_name = $this->_mod_mailbox($folder);
1824 if (!in_array_nocase($abs_name, $a_folders))
1825 $this->create_mailbox($folder, TRUE);
1826 else if (!in_array_nocase($abs_name, $a_subscribed))
1827 $this->subscribe($folder);
1833 /* --------------------------------
1834 * internal caching methods
1835 * --------------------------------*/
1840 function set_caching($set)
1842 if ($set && is_object($this->db))
1843 $this->caching_enabled = TRUE;
1845 $this->caching_enabled = FALSE;
1851 function get_cache($key)
1854 if (!isset($this->cache[$key]) && $this->caching_enabled)
1856 $cache_data = $this->_read_cache_record('IMAP.'.$key);
1857 $this->cache[$key] = strlen($cache_data) ? unserialize($cache_data) : FALSE;
1860 return $this->cache[$key];
1866 function update_cache($key, $data)
1868 $this->cache[$key] = $data;
1869 $this->cache_changed = TRUE;
1870 $this->cache_changes[$key] = TRUE;
1876 function write_cache()
1878 if ($this->caching_enabled && $this->cache_changed)
1880 foreach ($this->cache as $key => $data)
1882 if ($this->cache_changes[$key])
1883 $this->_write_cache_record('IMAP.'.$key, serialize($data));
1891 function clear_cache($key=NULL)
1895 foreach ($this->cache as $key => $data)
1896 $this->_clear_cache_record('IMAP.'.$key);
1898 $this->cache = array();
1899 $this->cache_changed = FALSE;
1900 $this->cache_changes = array();
1904 $this->_clear_cache_record('IMAP.'.$key);
1905 $this->cache_changes[$key] = FALSE;
1906 unset($this->cache[$key]);
1913 function _read_cache_record($key)
1915 $cache_data = FALSE;
1919 // get cached data from DB
1920 $sql_result = $this->db->query(
1921 "SELECT cache_id, data
1922 FROM ".get_table_name('cache')."
1925 $_SESSION['user_id'],
1928 if ($sql_arr = $this->db->fetch_assoc($sql_result))
1930 $cache_data = $sql_arr['data'];
1931 $this->cache_keys[$key] = $sql_arr['cache_id'];
1941 function _write_cache_record($key, $data)
1946 // check if we already have a cache entry for this key
1947 if (!isset($this->cache_keys[$key]))
1949 $sql_result = $this->db->query(
1951 FROM ".get_table_name('cache')."
1954 $_SESSION['user_id'],
1957 if ($sql_arr = $this->db->fetch_assoc($sql_result))
1958 $this->cache_keys[$key] = $sql_arr['cache_id'];
1960 $this->cache_keys[$key] = FALSE;
1963 // update existing cache record
1964 if ($this->cache_keys[$key])
1967 "UPDATE ".get_table_name('cache')."
1968 SET created=".$this->db->now().",
1973 $_SESSION['user_id'],
1976 // add new cache record
1980 "INSERT INTO ".get_table_name('cache')."
1981 (created, user_id, cache_key, data)
1982 VALUES (".$this->db->now().", ?, ?, ?)",
1983 $_SESSION['user_id'],
1992 function _clear_cache_record($key)
1995 "DELETE FROM ".get_table_name('cache')."
1998 $_SESSION['user_id'],
2004 /* --------------------------------
2005 * message caching methods
2006 * --------------------------------*/
2010 * Checks if the cache is up-to-date
2012 * @param string Mailbox name
2013 * @param string Internal cache key
2014 * @return int -3 = off, -2 = incomplete, -1 = dirty
2016 function check_cache_status($mailbox, $cache_key)
2018 if (!$this->caching_enabled)
2021 $cache_index = $this->get_message_cache_index($cache_key, TRUE);
2022 $msg_count = $this->_messagecount($mailbox);
2023 $cache_count = count($cache_index);
2025 // console("Cache check: $msg_count !== ".count($cache_index));
2027 if ($cache_count==$msg_count)
2029 // get highest index
2030 $header = iil_C_FetchHeader($this->conn, $mailbox, "$msg_count");
2031 $cache_uid = array_pop($cache_index);
2033 // uids of highest message matches -> cache seems OK
2034 if ($cache_uid == $header->uid)
2040 // if cache count differs less than 10% report as dirty
2041 else if (abs($msg_count - $cache_count) < $msg_count/10)
2050 function get_message_cache($key, $from, $to, $sort_field, $sort_order)
2052 $cache_key = "$key:$from:$to:$sort_field:$sort_order";
2053 $db_header_fields = array('idx', 'uid', 'subject', 'from', 'to', 'cc', 'date', 'size');
2055 if (!in_array($sort_field, $db_header_fields))
2056 $sort_field = 'idx';
2058 if ($this->caching_enabled && !isset($this->cache[$cache_key]))
2060 $this->cache[$cache_key] = array();
2061 $sql_result = $this->db->limitquery(
2062 "SELECT idx, uid, headers
2063 FROM ".get_table_name('messages')."
2066 ORDER BY ".$this->db->quoteIdentifier($sort_field)." ".
2067 strtoupper($sort_order),
2070 $_SESSION['user_id'],
2073 while ($sql_arr = $this->db->fetch_assoc($sql_result))
2075 $uid = $sql_arr['uid'];
2076 $this->cache[$cache_key][$uid] = unserialize($sql_arr['headers']);
2078 // featch headers if unserialize failed
2079 if (empty($this->cache[$cache_key][$uid]))
2080 $this->cache[$cache_key][$uid] = iil_C_FetchHeader($this->conn, preg_replace('/.msg$/', '', $key), $uid, true);
2084 return $this->cache[$cache_key];
2090 function &get_cached_message($key, $uid, $struct=false)
2092 $internal_key = '__single_msg';
2094 if ($this->caching_enabled && (!isset($this->cache[$internal_key][$uid]) ||
2095 ($struct && empty($this->cache[$internal_key][$uid]->structure))))
2097 $sql_select = "idx, uid, headers" . ($struct ? ", structure" : '');
2098 $sql_result = $this->db->query(
2100 FROM ".get_table_name('messages')."
2104 $_SESSION['user_id'],
2108 if ($sql_arr = $this->db->fetch_assoc($sql_result))
2110 $this->cache[$internal_key][$uid] = unserialize($sql_arr['headers']);
2111 if (is_object($this->cache[$internal_key][$uid]) && !empty($sql_arr['structure']))
2112 $this->cache[$internal_key][$uid]->structure = unserialize($sql_arr['structure']);
2116 return $this->cache[$internal_key][$uid];
2122 function get_message_cache_index($key, $force=FALSE, $sort_col='idx', $sort_order='ASC')
2124 static $sa_message_index = array();
2126 // empty key -> empty array
2127 if (!$this->caching_enabled || empty($key))
2130 if (!empty($sa_message_index[$key]) && !$force)
2131 return $sa_message_index[$key];
2133 $sa_message_index[$key] = array();
2134 $sql_result = $this->db->query(
2136 FROM ".get_table_name('messages')."
2139 ORDER BY ".$this->db->quote_identifier($sort_col)." ".$sort_order,
2140 $_SESSION['user_id'],
2143 while ($sql_arr = $this->db->fetch_assoc($sql_result))
2144 $sa_message_index[$key][$sql_arr['idx']] = $sql_arr['uid'];
2146 return $sa_message_index[$key];
2152 function add_message_cache($key, $index, $headers, $struct=null)
2154 if (empty($key) || !is_object($headers) || empty($headers->uid))
2157 // add to internal (fast) cache
2158 $this->cache['__single_msg'][$headers->uid] = $headers;
2159 $this->cache['__single_msg'][$headers->uid]->structure = $struct;
2161 // no further caching
2162 if (!$this->caching_enabled)
2165 // check for an existing record (probly headers are cached but structure not)
2166 $sql_result = $this->db->query(
2168 FROM ".get_table_name('messages')."
2173 $_SESSION['user_id'],
2177 // update cache record
2178 if ($sql_arr = $this->db->fetch_assoc($sql_result))
2181 "UPDATE ".get_table_name('messages')."
2182 SET idx=?, headers=?, structure=?
2183 WHERE message_id=?",
2185 serialize($headers),
2186 is_object($struct) ? serialize($struct) : NULL,
2187 $sql_arr['message_id']
2190 else // insert new record
2193 "INSERT INTO ".get_table_name('messages')."
2194 (user_id, del, cache_key, created, idx, uid, subject, ".$this->db->quoteIdentifier('from').", ".$this->db->quoteIdentifier('to').", cc, date, size, headers, structure)
2195 VALUES (?, 0, ?, ".$this->db->now().", ?, ?, ?, ?, ?, ?, ".$this->db->fromunixtime($headers->timestamp).", ?, ?, ?)",
2196 $_SESSION['user_id'],
2200 (string)substr($this->decode_header($headers->subject, TRUE), 0, 128),
2201 (string)substr($this->decode_header($headers->from, TRUE), 0, 128),
2202 (string)substr($this->decode_header($headers->to, TRUE), 0, 128),
2203 (string)substr($this->decode_header($headers->cc, TRUE), 0, 128),
2204 (int)$headers->size,
2205 serialize($headers),
2206 is_object($struct) ? serialize($struct) : NULL
2214 function remove_message_cache($key, $index)
2217 "DELETE FROM ".get_table_name('messages')."
2221 $_SESSION['user_id'],
2229 function clear_message_cache($key, $start_index=1)
2232 "DELETE FROM ".get_table_name('messages')."
2236 $_SESSION['user_id'],
2244 /* --------------------------------
2245 * encoding/decoding methods
2246 * --------------------------------*/
2249 * Split an address list into a structured array list
2251 * @param string Input string
2252 * @param int List only this number of addresses
2253 * @param boolean Decode address strings
2254 * @return array Indexed list of addresses
2256 function decode_address_list($input, $max=null, $decode=true)
2258 $a = $this->_parse_address_list($input, $decode);
2267 foreach ($a as $val)
2270 $address = $val['address'];
2271 $name = preg_replace(array('/^[\'"]/', '/[\'"]$/'), '', trim($val['name']));
2272 if ($name && $address && $name != $address)
2273 $string = sprintf('%s <%s>', strpos($name, ',')!==FALSE ? '"'.$name.'"' : $name, $address);
2279 $out[$j] = array('name' => $name,
2280 'mailto' => $address,
2281 'string' => $string);
2283 if ($max && $j==$max)
2292 * Decode a message header value
2294 * @param string Header value
2295 * @param boolean Remove quotes if necessary
2296 * @return string Decoded string
2298 function decode_header($input, $remove_quotes=FALSE)
2300 $str = $this->decode_mime_string((string)$input);
2301 if ($str{0}=='"' && $remove_quotes)
2302 $str = str_replace('"', '', $str);
2309 * Decode a mime-encoded string to internal charset
2311 * @param string Header value
2312 * @param string Fallback charset if none specified
2313 * @return string Decoded string
2316 function decode_mime_string($input, $fallback=null)
2320 $pos = strpos($input, '=?');
2323 $out = substr($input, 0, $pos);
2325 $end_cs_pos = strpos($input, "?", $pos+2);
2326 $end_en_pos = strpos($input, "?", $end_cs_pos+1);
2327 $end_pos = strpos($input, "?=", $end_en_pos+1);
2329 $encstr = substr($input, $pos+2, ($end_pos-$pos-2));
2330 $rest = substr($input, $end_pos+2);
2332 $out .= rcube_imap::_decode_mime_string_part($encstr);
2333 $out .= rcube_imap::decode_mime_string($rest, $fallback);
2338 // no encoding information, use fallback
2339 return rcube_charset_convert($input, !empty($fallback) ? $fallback : 'ISO-8859-1');
2344 * Decode a part of a mime-encoded string
2348 function _decode_mime_string_part($str)
2350 $a = explode('?', $str);
2353 // should be in format "charset?encoding?base64_string"
2356 for ($i=2; $i<$count; $i++)
2359 if (($a[1]=="B")||($a[1]=="b"))
2360 $rest = base64_decode($rest);
2361 else if (($a[1]=="Q")||($a[1]=="q"))
2363 $rest = str_replace("_", " ", $rest);
2364 $rest = quoted_printable_decode($rest);
2367 return rcube_charset_convert($rest, $a[0]);
2370 return $str; // we dont' know what to do with this
2375 * Decode a mime part
2377 * @param string Input string
2378 * @param string Part encoding
2379 * @return string Decoded string
2382 function mime_decode($input, $encoding='7bit')
2384 switch (strtolower($encoding))
2390 case 'quoted-printable':
2391 return quoted_printable_decode($input);
2395 return base64_decode($input);
2405 * Convert body charset to UTF-8 according to the ctype_parameters
2407 * @param string Part body to decode
2408 * @param string Charset to convert from
2409 * @return string Content converted to internal charset
2411 function charset_decode($body, $ctype_param)
2413 if (is_array($ctype_param) && !empty($ctype_param['charset']))
2414 return rcube_charset_convert($body, $ctype_param['charset']);
2416 // defaults to what is specified in the class header
2417 return rcube_charset_convert($body, 'ISO-8859-1');
2422 * Translate UID to message ID
2424 * @param int Message UID
2425 * @param string Mailbox name
2426 * @return int Message ID
2428 function get_id($uid, $mbox_name=NULL)
2430 $mailbox = $mbox_name ? $this->_mod_mailbox($mbox_name) : $this->mailbox;
2431 return $this->_uid2id($uid, $mailbox);
2436 * Translate message number to UID
2438 * @param int Message ID
2439 * @param string Mailbox name
2440 * @return int Message UID
2442 function get_uid($id,$mbox_name=NULL)
2444 $mailbox = $mbox_name ? $this->_mod_mailbox($mbox_name) : $this->mailbox;
2445 return $this->_id2uid($id, $mailbox);
2450 /* --------------------------------
2452 * --------------------------------*/
2458 function _mod_mailbox($mbox_name, $mode='in')
2460 if ((!empty($this->root_ns) && $this->root_ns == $mbox_name) || $mbox_name == 'INBOX')
2463 if (!empty($this->root_dir) && $mode=='in')
2464 $mbox_name = $this->root_dir.$this->delimiter.$mbox_name;
2465 else if (strlen($this->root_dir) && $mode=='out')
2466 $mbox_name = substr($mbox_name, strlen($this->root_dir)+1);
2472 * Validate the given input and save to local properties
2475 function _set_sort_order($sort_field, $sort_order)
2477 if ($sort_field != null)
2478 $this->sort_field = asciiwords($sort_field);
2479 if ($sort_order != null)
2480 $this->sort_order = strtoupper($sort_order) == 'DESC' ? 'DESC' : 'ASC';
2484 * Sort mailboxes first by default folders and then in alphabethical order
2487 function _sort_mailbox_list($a_folders)
2489 $a_out = $a_defaults = array();
2491 // find default folders and skip folders starting with '.'
2492 foreach($a_folders as $i => $folder)
2494 if ($folder{0}=='.')
2497 if (($p = array_search(strtolower($folder), $this->default_folders_lc)) !== false && !$a_defaults[$p])
2498 $a_defaults[$p] = $folder;
2503 natcasesort($a_out);
2506 return array_merge($a_defaults, $a_out);
2512 function _uid2id($uid, $mbox_name=NULL)
2515 $mbox_name = $this->mailbox;
2517 if (!isset($this->uid_id_map[$mbox_name][$uid]))
2518 $this->uid_id_map[$mbox_name][$uid] = iil_C_UID2ID($this->conn, $mbox_name, $uid);
2520 return $this->uid_id_map[$mbox_name][$uid];
2526 function _id2uid($id, $mbox_name=NULL)
2529 $mbox_name = $this->mailbox;
2531 $index = array_flip((array)$this->uid_id_map[$mbox_name]);
2532 if (isset($index[$id]))
2536 $uid = iil_C_ID2UID($this->conn, $mbox_name, $id);
2537 $this->uid_id_map[$mbox_name][$uid] = $id;
2545 * Parse string or array of server capabilities and put them in internal array
2548 function _parse_capability($caps)
2550 if (!is_array($caps))
2551 $cap_arr = explode(' ', $caps);
2555 foreach ($cap_arr as $cap)
2557 if ($cap=='CAPABILITY')
2560 if (strpos($cap, '=')>0)
2562 list($key, $value) = explode('=', $cap);
2563 if (!is_array($this->capabilities[$key]))
2564 $this->capabilities[$key] = array();
2566 $this->capabilities[$key][] = $value;
2569 $this->capabilities[$cap] = TRUE;
2575 * Subscribe/unsubscribe a list of mailboxes and update local cache
2578 function _change_subscription($a_mboxes, $mode)
2582 if (is_array($a_mboxes))
2583 foreach ($a_mboxes as $i => $mbox_name)
2585 $mailbox = $this->_mod_mailbox($mbox_name);
2586 $a_mboxes[$i] = $mailbox;
2588 if ($mode=='subscribe')
2589 $result = iil_C_Subscribe($this->conn, $mailbox);
2590 else if ($mode=='unsubscribe')
2591 $result = iil_C_UnSubscribe($this->conn, $mailbox);
2597 // get cached mailbox list
2600 $a_mailbox_cache = $this->get_cache('mailboxes');
2601 if (!is_array($a_mailbox_cache))
2604 // modify cached list
2605 if ($mode=='subscribe')
2606 $a_mailbox_cache = array_merge($a_mailbox_cache, $a_mboxes);
2607 else if ($mode=='unsubscribe')
2608 $a_mailbox_cache = array_diff($a_mailbox_cache, $a_mboxes);
2610 // write mailboxlist to cache
2611 $this->update_cache('mailboxes', $this->_sort_mailbox_list($a_mailbox_cache));
2619 * Increde/decrese messagecount for a specific mailbox
2622 function _set_messagecount($mbox_name, $mode, $increment)
2624 $a_mailbox_cache = FALSE;
2625 $mailbox = $mbox_name ? $mbox_name : $this->mailbox;
2626 $mode = strtoupper($mode);
2628 $a_mailbox_cache = $this->get_cache('messagecount');
2630 if (!is_array($a_mailbox_cache[$mailbox]) || !isset($a_mailbox_cache[$mailbox][$mode]) || !is_numeric($increment))
2633 // add incremental value to messagecount
2634 $a_mailbox_cache[$mailbox][$mode] += $increment;
2636 // there's something wrong, delete from cache
2637 if ($a_mailbox_cache[$mailbox][$mode] < 0)
2638 unset($a_mailbox_cache[$mailbox][$mode]);
2640 // write back to cache
2641 $this->update_cache('messagecount', $a_mailbox_cache);
2648 * Remove messagecount of a specific mailbox from cache
2651 function _clear_messagecount($mbox_name='')
2653 $a_mailbox_cache = FALSE;
2654 $mailbox = $mbox_name ? $mbox_name : $this->mailbox;
2656 $a_mailbox_cache = $this->get_cache('messagecount');
2658 if (is_array($a_mailbox_cache[$mailbox]))
2660 unset($a_mailbox_cache[$mailbox]);
2661 $this->update_cache('messagecount', $a_mailbox_cache);
2667 * Split RFC822 header string into an associative array
2670 function _parse_headers($headers)
2672 $a_headers = array();
2673 $lines = explode("\n", $headers);
2675 for ($i=0; $i<$c; $i++)
2677 if ($p = strpos($lines[$i], ': '))
2679 $field = strtolower(substr($lines[$i], 0, $p));
2680 $value = trim(substr($lines[$i], $p+1));
2682 $a_headers[$field] = $value;
2693 function _parse_address_list($str, $decode=true)
2695 // remove any newlines and carriage returns before
2696 $a = $this->_explode_quoted_string('[,;]', preg_replace( "/[\r\n]/", " ", $str));
2699 foreach ($a as $key => $val)
2701 $val = preg_replace("/([\"\w])</", "$1 <", $val);
2702 $sub_a = $this->_explode_quoted_string(' ', $decode ? $this->decode_header($val) : $val);
2703 $result[$key]['name'] = '';
2705 foreach ($sub_a as $k => $v)
2707 if (strpos($v, '@') > 0)
2708 $result[$key]['address'] = str_replace('<', '', str_replace('>', '', $v));
2710 $result[$key]['name'] .= (empty($result[$key]['name'])?'':' ').str_replace("\"",'',stripslashes($v));
2713 if (empty($result[$key]['name']))
2714 $result[$key]['name'] = $result[$key]['address'];
2724 function _explode_quoted_string($delimiter, $string)
2727 $strlen = strlen($string);
2728 for ($q=$p=$i=0; $i < $strlen; $i++)
2730 if ($string{$i} == "\"" && $string{$i-1} != "\\")
2731 $q = $q ? false : true;
2732 else if (!$q && preg_match("/$delimiter/", $string{$i}))
2734 $result[] = substr($string, $p, $i - $p);
2739 $result[] = substr($string, $p);
2743 } // end class rcube_imap
2747 * Class representing a message part
2751 class rcube_message_part
2754 var $ctype_primary = 'text';
2755 var $ctype_secondary = 'plain';
2756 var $mimetype = 'text/plain';
2757 var $disposition = '';
2759 var $encoding = '8bit';
2762 var $headers = array();
2763 var $d_parameters = array();
2764 var $ctype_parameters = array();
2770 * Class for sorting an array of iilBasicHeader objects in a predetermined order.
2773 * @author Eric Stadtherr
2775 class rcube_header_sorter
2777 var $sequence_numbers = array();
2780 * Set the predetermined sort order.
2782 * @param array Numerically indexed array of IMAP message sequence numbers
2784 function set_sequence_numbers($seqnums)
2786 $this->sequence_numbers = $seqnums;
2790 * Sort the array of header objects
2792 * @param array Array of iilBasicHeader objects indexed by UID
2794 function sort_headers(&$headers)
2797 * uksort would work if the keys were the sequence number, but unfortunately
2798 * the keys are the UIDs. We'll use uasort instead and dereference the value
2799 * to get the sequence number (in the "id" field).
2801 * uksort($headers, array($this, "compare_seqnums"));
2803 uasort($headers, array($this, "compare_seqnums"));
2807 * Get the position of a message sequence number in my sequence_numbers array
2809 * @param int Message sequence number contained in sequence_numbers
2810 * @return int Position, -1 if not found
2812 function position_of($seqnum)
2814 $c = count($this->sequence_numbers);
2815 for ($pos = 0; $pos <= $c; $pos++)
2817 if ($this->sequence_numbers[$pos] == $seqnum)
2824 * Sort method called by uasort()
2826 function compare_seqnums($a, $b)
2828 // First get the sequence number from the header object (the 'id' field).
2832 // then find each sequence number in my ordered list
2833 $posa = $this->position_of($seqa);
2834 $posb = $this->position_of($seqb);
2836 // return the relative position as the comparison value
2837 $ret = $posa - $posb;
2844 * Add quoted-printable encoding to a given string
2846 * @param string String to encode
2847 * @param int Add new line after this number of characters
2848 * @param boolean True if spaces should be converted into =20
2849 * @return string Encoded string
2851 function quoted_printable_encode($input, $line_max=76, $space_conv=false)
2853 $hex = array('0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F');
2854 $lines = preg_split("/(?:\r\n|\r|\n)/", $input);
2859 while( list(, $line) = each($lines))
2861 //$line = rtrim($line); // remove trailing white space -> no =20\r\n necessary
2862 $linlen = strlen($line);
2864 for($i = 0; $i < $linlen; $i++)
2866 $c = substr( $line, $i, 1 );
2868 if ( ( $i == 0 ) && ( $dec == 46 ) ) // convert first point in the line into =2E
2874 if ( $i == ( $linlen - 1 ) ) // convert space at eol only
2878 else if ( $space_conv )
2883 else if ( ($dec == 61) || ($dec < 32 ) || ($dec > 126) ) // always encode "\t", which is *not* required
2885 $h2 = floor($dec/16);
2886 $h1 = floor($dec%16);
2887 $c = $escape.$hex["$h2"].$hex["$h1"];
2890 if ( (strlen($newline) + strlen($c)) >= $line_max ) // CRLF is not counted
2892 $output .= $newline.$escape.$eol; // soft line break; " =\r\n" is okay
2894 // check if newline first character will be point or not
2902 $output .= $newline.$eol;
2905 return trim($output);