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diff --git a/program/include/rcube_imap.php b/program/include/rcube_imap.php
index 44d23cc69..d0b29082b 100644
--- a/program/include/rcube_imap.php
+++ b/program/include/rcube_imap.php
@@ -1,3792 +1,3797 @@
<?php
/*
+-----------------------------------------------------------------------+
| program/include/rcube_imap.php |
| |
| This file is part of the RoundCube Webmail client |
| Copyright (C) 2005-2010, RoundCube Dev. - Switzerland |
| Licensed under the GNU GPL |
| |
| PURPOSE: |
| IMAP wrapper that implements the Iloha IMAP Library (IIL) |
| See http://ilohamail.org/ for details |
| |
+-----------------------------------------------------------------------+
| Author: Thomas Bruederli <roundcube@gmail.com> |
+-----------------------------------------------------------------------+
$Id$
*/
/*
* Obtain classes from the Iloha IMAP library
*/
require_once('lib/imap.inc');
require_once('lib/mime.inc');
require_once('lib/tnef_decoder.inc');
/**
* Interface class for accessing an IMAP server
*
* This is a wrapper that implements the Iloha IMAP Library (IIL)
*
* @package Mail
* @author Thomas Bruederli <roundcube@gmail.com>
* @version 1.5
* @link http://ilohamail.org
*/
class rcube_imap
{
public $debug_level = 1;
public $error_code = 0;
public $skip_deleted = false;
public $root_dir = '';
public $page_size = 10;
public $list_page = 1;
public $delimiter = NULL;
public $threading = false;
public $fetch_add_headers = '';
public $conn;
private $db;
private $root_ns = '';
private $mailbox = 'INBOX';
private $sort_field = '';
private $sort_order = 'DESC';
private $caching_enabled = false;
private $default_charset = 'ISO-8859-1';
private $struct_charset = NULL;
private $default_folders = array('INBOX');
private $default_folders_lc = array('inbox');
private $icache = array();
private $cache = array();
private $cache_keys = array();
private $cache_changes = array();
private $uid_id_map = array();
private $msg_headers = array();
public $search_set = NULL;
public $search_string = '';
private $search_charset = '';
private $search_sort_field = '';
private $search_threads = false;
private $db_header_fields = array('idx', 'uid', 'subject', 'from', 'to', 'cc', 'date', 'size');
private $options = array('auth_method' => 'check');
private $host, $user, $pass, $port, $ssl;
/**
* Object constructor
*
* @param object DB Database connection
*/
function __construct($db_conn)
{
$this->db = $db_conn;
}
/**
* Connect to an IMAP server
*
* @param string Host to connect
* @param string Username for IMAP account
* @param string Password for IMAP account
* @param number Port to connect to
* @param string SSL schema (either ssl or tls) or null if plain connection
* @return boolean TRUE on success, FALSE on failure
* @access public
*/
function connect($host, $user, $pass, $port=143, $use_ssl=null)
{
global $ICL_SSL, $ICL_PORT, $IMAP_USE_INTERNAL_DATE;
// check for Open-SSL support in PHP build
if ($use_ssl && extension_loaded('openssl'))
$ICL_SSL = $use_ssl == 'imaps' ? 'ssl' : $use_ssl;
else if ($use_ssl) {
raise_error(array('code' => 403, 'type' => 'imap',
'file' => __FILE__, 'line' => __LINE__,
'message' => "Open SSL not available"), true, false);
$port = 143;
}
$ICL_PORT = $port;
$IMAP_USE_INTERNAL_DATE = false;
$attempt = 0;
do {
$data = rcmail::get_instance()->plugins->exec_hook('imap_connect', array('host' => $host, 'user' => $user, 'attempt' => ++$attempt));
if (!empty($data['pass']))
$pass = $data['pass'];
$this->conn = iil_Connect($data['host'], $data['user'], $pass, $this->options);
} while(!$this->conn && $data['retry']);
$this->host = $data['host'];
$this->user = $data['user'];
$this->pass = $pass;
$this->port = $port;
$this->ssl = $use_ssl;
// print trace messages
if ($this->conn && ($this->debug_level & 8))
console($this->conn->message);
// write error log
else if (!$this->conn && $GLOBALS['iil_error'])
{
$this->error_code = $GLOBALS['iil_errornum'];
raise_error(array('code' => 403, 'type' => 'imap',
'file' => __FILE__, 'line' => __LINE__,
'message' => $GLOBALS['iil_error']), true, false);
}
// get server properties
if ($this->conn)
{
if (!empty($this->conn->rootdir))
$this->set_rootdir($this->conn->rootdir);
if (empty($this->delimiter))
$this->get_hierarchy_delimiter();
}
return $this->conn ? true : false;
}
/**
* Close IMAP connection
* Usually done on script shutdown
*
* @access public
*/
function close()
{
if ($this->conn)
iil_Close($this->conn);
}
/**
* Close IMAP connection and re-connect
* This is used to avoid some strange socket errors when talking to Courier IMAP
*
* @access public
*/
function reconnect()
{
$this->close();
$this->connect($this->host, $this->user, $this->pass, $this->port, $this->ssl);
// issue SELECT command to restore connection status
if ($this->mailbox)
iil_C_Select($this->conn, $this->mailbox);
}
/**
* Set options to be used in iil_Connect()
*/
function set_options($opt)
{
$this->options = array_merge($this->options, (array)$opt);
}
/**
* Set a root folder for the IMAP connection.
*
* Only folders within this root folder will be displayed
* and all folder paths will be translated using this folder name
*
* @param string Root folder
* @access public
*/
function set_rootdir($root)
{
if (preg_match('/[.\/]$/', $root)) //(substr($root, -1, 1)==='/')
$root = substr($root, 0, -1);
$this->root_dir = $root;
$this->options['rootdir'] = $root;
if (empty($this->delimiter))
$this->get_hierarchy_delimiter();
}
/**
* Set default message charset
*
* This will be used for message decoding if a charset specification is not available
*
* @param string Charset string
* @access public
*/
function set_charset($cs)
{
$this->default_charset = $cs;
}
/**
* This list of folders will be listed above all other folders
*
* @param array Indexed list of folder names
* @access public
*/
function set_default_mailboxes($arr)
{
if (is_array($arr))
{
$this->default_folders = $arr;
// add inbox if not included
if (!in_array('INBOX', $this->default_folders))
array_unshift($this->default_folders, 'INBOX');
}
}
/**
* Set internal mailbox reference.
*
* All operations will be perfomed on this mailbox/folder
*
* @param string Mailbox/Folder name
* @access public
*/
function set_mailbox($new_mbox)
{
$mailbox = $this->mod_mailbox($new_mbox);
if ($this->mailbox == $mailbox)
return;
$this->mailbox = $mailbox;
// clear messagecount cache for this mailbox
$this->_clear_messagecount($mailbox);
}
/**
* Set internal list page
*
* @param number Page number to list
* @access public
*/
function set_page($page)
{
$this->list_page = (int)$page;
}
/**
* Set internal page size
*
* @param number Number of messages to display on one page
* @access public
*/
function set_pagesize($size)
{
$this->page_size = (int)$size;
}
/**
* Save a set of message ids for future message listing methods
*
* @param string IMAP Search query
* @param array List of message ids or NULL if empty
* @param string Charset of search string
* @param string Sorting field
*/
function set_search_set($str=null, $msgs=null, $charset=null, $sort_field=null, $threads=false)
{
if (is_array($str) && $msgs == null)
list($str, $msgs, $charset, $sort_field, $threads) = $str;
if ($msgs != null && !is_array($msgs))
$msgs = explode(',', $msgs);
$this->search_string = $str;
$this->search_set = $msgs;
$this->search_charset = $charset;
$this->search_sort_field = $sort_field;
$this->search_threads = $threads;
}
/**
* Return the saved search set as hash array
* @return array Search set
*/
function get_search_set()
{
return array($this->search_string,
$this->search_set,
$this->search_charset,
$this->search_sort_field,
$this->search_threads,
);
}
/**
* Returns the currently used mailbox name
*
* @return string Name of the mailbox/folder
* @access public
*/
function get_mailbox_name()
{
return $this->conn ? $this->mod_mailbox($this->mailbox, 'out') : '';
}
/**
* Returns the IMAP server's capability
*
* @param string Capability name
* @return mixed Capability value or TRUE if supported, FALSE if not
* @access public
*/
function get_capability($cap)
{
return iil_C_GetCapability($this->conn, strtoupper($cap));
}
/**
* Sets threading flag to the best supported THREAD algorithm
*
* @param boolean TRUE to enable and FALSE
* @return string Algorithm or false if THREAD is not supported
* @access public
*/
function set_threading($enable=false)
{
$this->threading = false;
if ($enable) {
if ($this->get_capability('THREAD=REFS'))
$this->threading = 'REFS';
else if ($this->get_capability('THREAD=REFERENCES'))
$this->threading = 'REFERENCES';
else if ($this->get_capability('THREAD=ORDEREDSUBJECT'))
$this->threading = 'ORDEREDSUBJECT';
}
return $this->threading;
}
/**
* Checks the PERMANENTFLAGS capability of the current mailbox
* and returns true if the given flag is supported by the IMAP server
*
* @param string Permanentflag name
* @return mixed True if this flag is supported
* @access public
*/
function check_permflag($flag)
{
$flag = strtoupper($flag);
$imap_flag = $GLOBALS['IMAP_FLAGS'][$flag];
return (in_array_nocase($imap_flag, $this->conn->permanentflags));
}
/**
* Returns the delimiter that is used by the IMAP server for folder separation
*
* @return string Delimiter string
* @access public
*/
function get_hierarchy_delimiter()
{
if ($this->conn && empty($this->delimiter))
$this->delimiter = iil_C_GetHierarchyDelimiter($this->conn);
if (empty($this->delimiter))
$this->delimiter = '/';
return $this->delimiter;
}
/**
* Public method for mailbox listing.
*
* Converts mailbox name with root dir first
*
* @param string Optional root folder
* @param string Optional filter for mailbox listing
* @return array List of mailboxes/folders
* @access public
*/
function list_mailboxes($root='', $filter='*')
{
$a_out = array();
$a_mboxes = $this->_list_mailboxes($root, $filter);
foreach ($a_mboxes as $mbox_row)
{
$name = $this->mod_mailbox($mbox_row, 'out');
if (strlen($name))
$a_out[] = $name;
}
// INBOX should always be available
if (!in_array('INBOX', $a_out))
array_unshift($a_out, 'INBOX');
// sort mailboxes
$a_out = $this->_sort_mailbox_list($a_out);
return $a_out;
}
/**
* Private method for mailbox listing
*
* @return array List of mailboxes/folders
* @see rcube_imap::list_mailboxes()
* @access private
*/
private function _list_mailboxes($root='', $filter='*')
{
$a_defaults = $a_out = array();
// get cached folder list
$a_mboxes = $this->get_cache('mailboxes');
if (is_array($a_mboxes))
return $a_mboxes;
// Give plugins a chance to provide a list of mailboxes
$data = rcmail::get_instance()->plugins->exec_hook('list_mailboxes',array('root'=>$root,'filter'=>$filter));
if (isset($data['folders'])) {
$a_folders = $data['folders'];
}
else {
// retrieve list of folders from IMAP server
$a_folders = iil_C_ListSubscribed($this->conn, $this->mod_mailbox($root), $filter);
}
if (!is_array($a_folders) || !sizeof($a_folders))
$a_folders = array();
// write mailboxlist to cache
$this->update_cache('mailboxes', $a_folders);
return $a_folders;
}
/**
* Get message count for a specific mailbox
*
* @param string Mailbox/folder name
- * @param string Mode for count [ALL|UNSEEN|RECENT]
+ * @param string Mode for count [ALL|THREADS|UNSEEN|RECENT]
* @param boolean Force reading from server and update cache
* @return int Number of messages
* @access public
*/
function messagecount($mbox_name='', $mode='ALL', $force=false)
{
$mailbox = $mbox_name ? $this->mod_mailbox($mbox_name) : $this->mailbox;
return $this->_messagecount($mailbox, $mode, $force);
}
/**
* Private method for getting nr of messages
*
* @access private
* @see rcube_imap::messagecount()
*/
private function _messagecount($mailbox='', $mode='ALL', $force=false)
{
$mode = strtoupper($mode);
if (empty($mailbox))
$mailbox = $this->mailbox;
// count search set
if ($this->search_string && $mailbox == $this->mailbox && ($mode == 'ALL' || $mode == 'THREADS') && !$force) {
if ($this->search_threads)
return $mode == 'ALL' ? count((array)$this->search_set['depth']) : count((array)$this->search_set['tree']);
else
return count((array)$this->search_set);
}
$a_mailbox_cache = $this->get_cache('messagecount');
// return cached value
if (!$force && is_array($a_mailbox_cache[$mailbox]) && isset($a_mailbox_cache[$mailbox][$mode]))
return $a_mailbox_cache[$mailbox][$mode];
if (!is_array($a_mailbox_cache[$mailbox]))
$a_mailbox_cache[$mailbox] = array();
if ($mode == 'THREADS')
$count = $this->_threadcount($mailbox);
// RECENT count is fetched a bit different
else if ($mode == 'RECENT')
$count = iil_C_CheckForRecent($this->conn, $mailbox);
// use SEARCH for message counting
else if ($this->skip_deleted)
{
$search_str = "ALL UNDELETED";
// get message count and store in cache
if ($mode == 'UNSEEN')
$search_str .= " UNSEEN";
// get message count using SEARCH
// not very performant but more precise (using UNDELETED)
+ // disable THREADS for this request
+ $threads = $this->threading;
+ $this->threading = false;
$index = $this->_search_index($mailbox, $search_str);
+ $this->threading = $threads;
+
$count = is_array($index) ? count($index) : 0;
if ($mode == 'ALL')
$_SESSION['maxuid'][$mailbox] = $index ? $this->_id2uid(max($index)) : 0;
}
else {
if ($mode == 'UNSEEN')
$count = iil_C_CountUnseen($this->conn, $mailbox);
else {
$count = iil_C_CountMessages($this->conn, $mailbox);
$_SESSION['maxuid'][$mailbox] = $count ? $this->_id2uid($count) : 0;
}
}
$a_mailbox_cache[$mailbox][$mode] = (int)$count;
// write back to cache
$this->update_cache('messagecount', $a_mailbox_cache);
return (int)$count;
}
/**
* Private method for getting nr of threads
*
* @access private
* @see rcube_imap::messagecount()
*/
private function _threadcount($mailbox)
{
if (!empty($this->icache['threads']))
return count($this->icache['threads']['tree']);
list ($thread_tree, $msg_depth, $has_children) = $this->_fetch_threads($mailbox);
// $this->update_thread_cache($mailbox, $thread_tree, $msg_depth, $has_children);
return count($thread_tree);
}
/**
* Public method for listing headers
* convert mailbox name with root dir first
*
* @param string Mailbox/folder name
* @param int Current page to list
* @param string Header field to sort by
* @param string Sort order [ASC|DESC]
* @param boolean Number of slice items to extract from result array
* @return array Indexed array with message header objects
* @access public
*/
function list_headers($mbox_name='', $page=NULL, $sort_field=NULL, $sort_order=NULL, $slice=0)
{
$mailbox = $mbox_name ? $this->mod_mailbox($mbox_name) : $this->mailbox;
return $this->_list_headers($mailbox, $page, $sort_field, $sort_order, false, $slice);
}
/**
* Private method for listing message headers
*
* @access private
* @see rcube_imap::list_headers
*/
private function _list_headers($mailbox='', $page=NULL, $sort_field=NULL, $sort_order=NULL, $recursive=false, $slice=0)
{
if (!strlen($mailbox))
return array();
// use saved message set
if ($this->search_string && $mailbox == $this->mailbox)
return $this->_list_header_set($mailbox, $page, $sort_field, $sort_order, $slice);
if ($this->threading)
return $this->_list_thread_headers($mailbox, $page, $sort_field, $sort_order, $recursive, $slice);
$this->_set_sort_order($sort_field, $sort_order);
$page = $page ? $page : $this->list_page;
$cache_key = $mailbox.'.msg';
$cache_status = $this->check_cache_status($mailbox, $cache_key);
// cache is OK, we can get all messages from local cache
if ($cache_status>0)
{
$start_msg = ($page-1) * $this->page_size;
$a_msg_headers = $this->get_message_cache($cache_key, $start_msg, $start_msg+$this->page_size, $this->sort_field, $this->sort_order);
$result = array_values($a_msg_headers);
if ($slice)
$result = array_slice($result, -$slice, $slice);
return $result;
}
// cache is dirty, sync it
else if ($this->caching_enabled && $cache_status==-1 && !$recursive)
{
$this->sync_header_index($mailbox);
return $this->_list_headers($mailbox, $page, $this->sort_field, $this->sort_order, true, $slice);
}
// retrieve headers from IMAP
$a_msg_headers = array();
// use message index sort as default sorting (for better performance)
if (!$this->sort_field)
{
if ($this->skip_deleted) {
// @TODO: this could be cached
if ($msg_index = $this->_search_index($mailbox, 'ALL UNDELETED')) {
$max = max($msg_index);
list($begin, $end) = $this->_get_message_range(count($msg_index), $page);
$msg_index = array_slice($msg_index, $begin, $end-$begin);
}
}
else if ($max = iil_C_CountMessages($this->conn, $mailbox)) {
list($begin, $end) = $this->_get_message_range($max, $page);
$msg_index = range($begin+1, $end);
}
else
$msg_index = array();
if ($slice)
$msg_index = array_slice($msg_index, ($this->sort_order == 'DESC' ? 0 : -$slice), $slice);
// fetch reqested headers from server
if ($msg_index)
$this->_fetch_headers($mailbox, join(",", $msg_index), $a_msg_headers, $cache_key);
}
// use SORT command
else if ($this->get_capability('SORT'))
{
if ($msg_index = iil_C_Sort($this->conn, $mailbox, $this->sort_field, $this->skip_deleted ? 'UNDELETED' : '')) {
list($begin, $end) = $this->_get_message_range(count($msg_index), $page);
$max = max($msg_index);
$msg_index = array_slice($msg_index, $begin, $end-$begin);
if ($slice)
$msg_index = array_slice($msg_index, ($this->sort_order == 'DESC' ? 0 : -$slice), $slice);
// fetch reqested headers from server
$this->_fetch_headers($mailbox, join(',', $msg_index), $a_msg_headers, $cache_key);
}
}
// fetch specified header for all messages and sort
else if ($a_index = iil_C_FetchHeaderIndex($this->conn, $mailbox, "1:*", $this->sort_field, $this->skip_deleted))
{
asort($a_index); // ASC
$msg_index = array_keys($a_index);
$max = max($msg_index);
list($begin, $end) = $this->_get_message_range(count($msg_index), $page);
$msg_index = array_slice($msg_index, $begin, $end-$begin);
if ($slice)
$msg_index = array_slice($msg_index, ($this->sort_order == 'DESC' ? 0 : -$slice), $slice);
// fetch reqested headers from server
$this->_fetch_headers($mailbox, join(",", $msg_index), $a_msg_headers, $cache_key);
}
// delete cached messages with a higher index than $max+1
// Changed $max to $max+1 to fix this bug : #1484295
$this->clear_message_cache($cache_key, $max + 1);
// kick child process to sync cache
// ...
// return empty array if no messages found
if (!is_array($a_msg_headers) || empty($a_msg_headers))
return array();
// use this class for message sorting
$sorter = new rcube_header_sorter();
$sorter->set_sequence_numbers($msg_index);
$sorter->sort_headers($a_msg_headers);
if ($this->sort_order == 'DESC')
$a_msg_headers = array_reverse($a_msg_headers);
return array_values($a_msg_headers);
}
/**
* Private method for listing message headers using threads
*
* @access private
* @see rcube_imap::list_headers
*/
private function _list_thread_headers($mailbox, $page=NULL, $sort_field=NULL, $sort_order=NULL, $recursive=false, $slice=0)
{
$this->_set_sort_order($sort_field, $sort_order);
$page = $page ? $page : $this->list_page;
// $cache_key = $mailbox.'.msg';
// $cache_status = $this->check_cache_status($mailbox, $cache_key);
// get all threads (default sort order)
list ($thread_tree, $msg_depth, $has_children) = $this->_fetch_threads($mailbox);
if (empty($thread_tree))
return array();
$msg_index = $this->_sort_threads($mailbox, $thread_tree);
return $this->_fetch_thread_headers($mailbox, $thread_tree, $msg_depth, $has_children,
$msg_index, $page, $slice);
}
/**
* Private method for fetching threads data
*
* @param string Mailbox/folder name
* @return array Array with thread data
* @access private
*/
private function _fetch_threads($mailbox)
{
if (empty($this->icache['threads'])) {
// get all threads
list ($thread_tree, $msg_depth, $has_children) = iil_C_Thread($this->conn,
$mailbox, $this->threading, $this->skip_deleted ? 'UNDELETED' : '');
// add to internal (fast) cache
$this->icache['threads'] = array();
$this->icache['threads']['tree'] = $thread_tree;
$this->icache['threads']['depth'] = $msg_depth;
$this->icache['threads']['has_children'] = $has_children;
}
return array(
$this->icache['threads']['tree'],
$this->icache['threads']['depth'],
$this->icache['threads']['has_children'],
);
}
/**
* Private method for fetching threaded messages headers
*
* @access private
*/
private function _fetch_thread_headers($mailbox, $thread_tree, $msg_depth, $has_children, $msg_index, $page, $slice=0)
{
$cache_key = $mailbox.'.msg';
// now get IDs for current page
list($begin, $end) = $this->_get_message_range(count($msg_index), $page);
$msg_index = array_slice($msg_index, $begin, $end-$begin);
if ($slice)
$msg_index = array_slice($msg_index, ($this->sort_order == 'DESC' ? 0 : -$slice), $slice);
if ($this->sort_order == 'DESC')
$msg_index = array_reverse($msg_index);
// flatten threads array
// @TODO: fetch children only in expanded mode
$all_ids = array();
foreach($msg_index as $root) {
$all_ids[] = $root;
if (!empty($thread_tree[$root]))
$all_ids = array_merge($all_ids, array_keys_recursive($thread_tree[$root]));
}
// fetch reqested headers from server
$this->_fetch_headers($mailbox, $all_ids, $a_msg_headers, $cache_key);
// return empty array if no messages found
if (!is_array($a_msg_headers) || empty($a_msg_headers))
return array();
// use this class for message sorting
$sorter = new rcube_header_sorter();
$sorter->set_sequence_numbers($all_ids);
$sorter->sort_headers($a_msg_headers);
// Set depth, has_children and unread_children fields in headers
$this->_set_thread_flags($a_msg_headers, $msg_depth, $has_children);
return array_values($a_msg_headers);
}
/**
* Private method for setting threaded messages flags:
* depth, has_children and unread_children
*
* @param array Reference to headers array indexed by message ID
* @param array Array of messages depth indexed by message ID
* @param array Array of messages children flags indexed by message ID
* @return array Message headers array indexed by message ID
* @access private
*/
private function _set_thread_flags(&$headers, $msg_depth, $msg_children)
{
$parents = array();
foreach ($headers as $idx => $header) {
$id = $header->id;
$depth = $msg_depth[$id];
$parents = array_slice($parents, 0, $depth);
if (!empty($parents)) {
$headers[$idx]->parent_uid = end($parents);
if (!$header->seen)
$headers[$parents[0]]->unread_children++;
}
array_push($parents, $header->uid);
$headers[$idx]->depth = $depth;
$headers[$idx]->has_children = $msg_children[$id];
}
}
/**
* Private method for listing a set of message headers (search results)
*
* @param string Mailbox/folder name
* @param int Current page to list
* @param string Header field to sort by
* @param string Sort order [ASC|DESC]
* @param boolean Number of slice items to extract from result array
* @return array Indexed array with message header objects
* @access private
* @see rcube_imap::list_header_set()
*/
private function _list_header_set($mailbox, $page=NULL, $sort_field=NULL, $sort_order=NULL, $slice=0)
{
if (!strlen($mailbox) || empty($this->search_set))
return array();
// use saved messages from searching
if ($this->threading)
return $this->_list_thread_header_set($mailbox, $page, $sort_field, $sort_order, $slice);
// search set is threaded, we need a new one
if ($this->search_threads)
$this->search('', $this->search_string, $this->search_charset, $sort_field);
$msgs = $this->search_set;
$a_msg_headers = array();
$page = $page ? $page : $this->list_page;
$start_msg = ($page-1) * $this->page_size;
$this->_set_sort_order($sort_field, $sort_order);
// quickest method (default sorting)
if (!$this->search_sort_field && !$this->sort_field)
{
if ($sort_order == 'DESC')
$msgs = array_reverse($msgs);
// get messages uids for one page
$msgs = array_slice(array_values($msgs), $start_msg, min(count($msgs)-$start_msg, $this->page_size));
if ($slice)
$msgs = array_slice($msgs, -$slice, $slice);
// fetch headers
$this->_fetch_headers($mailbox, join(',',$msgs), $a_msg_headers, NULL);
// I didn't found in RFC that FETCH always returns messages sorted by index
$sorter = new rcube_header_sorter();
$sorter->set_sequence_numbers($msgs);
$sorter->sort_headers($a_msg_headers);
return array_values($a_msg_headers);
}
// sorted messages, so we can first slice array and then fetch only wanted headers
if ($this->get_capability('SORT')) // SORT searching result
{
// reset search set if sorting field has been changed
if ($this->sort_field && $this->search_sort_field != $this->sort_field)
$msgs = $this->search('', $this->search_string, $this->search_charset, $this->sort_field);
// return empty array if no messages found
if (empty($msgs))
return array();
if ($sort_order == 'DESC')
$msgs = array_reverse($msgs);
// get messages uids for one page
$msgs = array_slice(array_values($msgs), $start_msg, min(count($msgs)-$start_msg, $this->page_size));
if ($slice)
$msgs = array_slice($msgs, -$slice, $slice);
// fetch headers
$this->_fetch_headers($mailbox, join(',',$msgs), $a_msg_headers, NULL);
$sorter = new rcube_header_sorter();
$sorter->set_sequence_numbers($msgs);
$sorter->sort_headers($a_msg_headers);
return array_values($a_msg_headers);
}
else { // SEARCH result, need sorting
$cnt = count($msgs);
// 300: experimantal value for best result
if (($cnt > 300 && $cnt > $this->page_size) || !$this->sort_field) {
// use memory less expensive (and quick) method for big result set
$a_index = $this->message_index('', $this->sort_field, $this->sort_order);
// get messages uids for one page...
$msgs = array_slice($a_index, $start_msg, min($cnt-$start_msg, $this->page_size));
if ($slice)
$msgs = array_slice($msgs, -$slice, $slice);
// ...and fetch headers
$this->_fetch_headers($mailbox, join(',', $msgs), $a_msg_headers, NULL);
// return empty array if no messages found
if (!is_array($a_msg_headers) || empty($a_msg_headers))
return array();
$sorter = new rcube_header_sorter();
$sorter->set_sequence_numbers($msgs);
$sorter->sort_headers($a_msg_headers);
return array_values($a_msg_headers);
}
else {
// for small result set we can fetch all messages headers
$this->_fetch_headers($mailbox, join(',', $msgs), $a_msg_headers, NULL);
// return empty array if no messages found
if (!is_array($a_msg_headers) || empty($a_msg_headers))
return array();
// if not already sorted
$a_msg_headers = iil_SortHeaders($a_msg_headers, $this->sort_field, $this->sort_order);
// only return the requested part of the set
$a_msg_headers = array_slice(array_values($a_msg_headers), $start_msg, min($cnt-$start_msg, $this->page_size));
if ($slice)
$a_msg_headers = array_slice($a_msg_headers, -$slice, $slice);
return $a_msg_headers;
}
}
}
/**
* Private method for listing a set of threaded message headers (search results)
*
* @param string Mailbox/folder name
* @param int Current page to list
* @param string Header field to sort by
* @param string Sort order [ASC|DESC]
* @param boolean Number of slice items to extract from result array
* @return array Indexed array with message header objects
* @access private
* @see rcube_imap::list_header_set()
*/
private function _list_thread_header_set($mailbox, $page=NULL, $sort_field=NULL, $sort_order=NULL, $slice=0)
{
// update search_set if previous data was fetched with disabled threading
if (!$this->search_threads)
$this->search('', $this->search_string, $this->search_charset, $sort_field);
$thread_tree = $this->search_set['tree'];
$msg_depth = $this->search_set['depth'];
$has_children = $this->search_set['children'];
$a_msg_headers = array();
$page = $page ? $page : $this->list_page;
$start_msg = ($page-1) * $this->page_size;
$this->_set_sort_order($sort_field, $sort_order);
$msg_index = $this->_sort_threads($mailbox, $thread_tree, array_keys($msg_depth));
return $this->_fetch_thread_headers($mailbox, $thread_tree, $msg_depth, $has_children, $msg_index, $page, $slice=0);
}
/**
* Helper function to get first and last index of the requested set
*
* @param int message count
* @param mixed page number to show, or string 'all'
* @return array array with two values: first index, last index
* @access private
*/
private function _get_message_range($max, $page)
{
$start_msg = ($page-1) * $this->page_size;
if ($page=='all')
{
$begin = 0;
$end = $max;
}
else if ($this->sort_order=='DESC')
{
$begin = $max - $this->page_size - $start_msg;
$end = $max - $start_msg;
}
else
{
$begin = $start_msg;
$end = $start_msg + $this->page_size;
}
if ($begin < 0) $begin = 0;
if ($end < 0) $end = $max;
if ($end > $max) $end = $max;
return array($begin, $end);
}
/**
* Fetches message headers
* Used for loop
*
* @param string Mailbox name
* @param string Message index to fetch
* @param array Reference to message headers array
* @param array Array with cache index
* @return int Messages count
* @access private
*/
private function _fetch_headers($mailbox, $msgs, &$a_msg_headers, $cache_key)
{
// fetch reqested headers from server
$a_header_index = iil_C_FetchHeaders($this->conn, $mailbox, $msgs, false, false, $this->fetch_add_headers);
if (empty($a_header_index))
return 0;
// cache is incomplete
$cache_index = $this->get_message_cache_index($cache_key);
foreach ($a_header_index as $i => $headers) {
if ($this->caching_enabled && $cache_index[$headers->id] != $headers->uid) {
// prevent index duplicates
if ($cache_index[$headers->id]) {
$this->remove_message_cache($cache_key, $headers->id, true);
unset($cache_index[$headers->id]);
}
// add message to cache
$this->add_message_cache($cache_key, $headers->id, $headers, NULL,
!in_array($headers->uid, $cache_index));
}
$a_msg_headers[$headers->uid] = $headers;
}
return count($a_msg_headers);
}
/**
* Fetches IDS of pseudo recent messages.
*
* We compare the maximum UID to determine the number of
* new messages because the RECENT flag is not reliable.
*
* @param string Mailbox/folder name
* @return array List of recent message UIDs
*/
function recent_uids($mbox_name = null, $nofetch = false)
{
$mailbox = $mbox_name ? $this->mod_mailbox($mbox_name) : $this->mailbox;
$old_maxuid = intval($_SESSION['maxuid'][$mailbox]);
// refresh message count -> will update $_SESSION['maxuid'][$mailbox]
$this->_messagecount($mailbox, 'ALL', true);
if ($_SESSION['maxuid'][$mailbox] > $old_maxuid) {
$maxuid = max(1, $old_maxuid+1);
return array_values((array)iil_C_FetchHeaderIndex($this->conn, $mailbox, "$maxuid:*", 'UID', $this->skip_deleted, true));
}
return array();
}
/**
* Return sorted array of message IDs (not UIDs)
*
* @param string Mailbox to get index from
* @param string Sort column
* @param string Sort order [ASC, DESC]
* @return array Indexed array with message ids
*/
function message_index($mbox_name='', $sort_field=NULL, $sort_order=NULL)
{
if ($this->threading)
return $this->thread_index($mbox_name, $sort_field, $sort_order);
$this->_set_sort_order($sort_field, $sort_order);
$mailbox = $mbox_name ? $this->mod_mailbox($mbox_name) : $this->mailbox;
$key = "{$mailbox}:{$this->sort_field}:{$this->sort_order}:{$this->search_string}.msgi";
// we have a saved search result, get index from there
if (!isset($this->cache[$key]) && $this->search_string
&& !$this->search_threads && $mailbox == $this->mailbox)
{
$this->cache[$key] = array();
// use message index sort as default sorting
if (!$this->sort_field)
{
$msgs = $this->search_set;
if ($this->search_sort_field != 'date')
sort($msgs);
if ($this->sort_order == 'DESC')
$this->cache[$key] = array_reverse($msgs);
else
$this->cache[$key] = $msgs;
}
// sort with SORT command
else if ($this->get_capability('SORT'))
{
if ($this->sort_field && $this->search_sort_field != $this->sort_field)
$this->search('', $this->search_string, $this->search_charset, $this->sort_field);
if ($this->sort_order == 'DESC')
$this->cache[$key] = array_reverse($this->search_set);
else
$this->cache[$key] = $this->search_set;
}
else
{
$a_index = iil_C_FetchHeaderIndex($this->conn, $mailbox,
join(',', $this->search_set), $this->sort_field, $this->skip_deleted);
if ($this->sort_order=="ASC")
asort($a_index);
else if ($this->sort_order=="DESC")
arsort($a_index);
$this->cache[$key] = array_keys($a_index);
}
}
// have stored it in RAM
if (isset($this->cache[$key]))
return $this->cache[$key];
// check local cache
$cache_key = $mailbox.'.msg';
$cache_status = $this->check_cache_status($mailbox, $cache_key);
// cache is OK
if ($cache_status>0)
{
$a_index = $this->get_message_cache_index($cache_key, true, $this->sort_field, $this->sort_order);
return array_keys($a_index);
}
// use message index sort as default sorting
if (!$this->sort_field)
{
if ($this->skip_deleted) {
$a_index = $this->_search_index($mailbox, 'ALL');
} else if ($max = $this->_messagecount($mailbox)) {
$a_index = range(1, $max);
}
if ($this->sort_order == 'DESC')
$a_index = array_reverse($a_index);
$this->cache[$key] = $a_index;
}
// fetch complete message index
else if ($this->get_capability('SORT'))
{
if ($a_index = iil_C_Sort($this->conn, $mailbox, $this->sort_field, $this->skip_deleted ? 'UNDELETED' : '')) {
if ($this->sort_order == 'DESC')
$a_index = array_reverse($a_index);
$this->cache[$key] = $a_index;
}
}
else if ($a_index = iil_C_FetchHeaderIndex($this->conn, $mailbox, "1:*", $this->sort_field, $this->skip_deleted)) {
if ($this->sort_order=="ASC")
asort($a_index);
else if ($this->sort_order=="DESC")
arsort($a_index);
$this->cache[$key] = array_keys($a_index);
}
return $this->cache[$key];
}
/**
* Return sorted array of threaded message IDs (not UIDs)
*
* @param string Mailbox to get index from
* @param string Sort column
* @param string Sort order [ASC, DESC]
* @return array Indexed array with message IDs
*/
function thread_index($mbox_name='', $sort_field=NULL, $sort_order=NULL)
{
$this->_set_sort_order($sort_field, $sort_order);
$mailbox = $mbox_name ? $this->mod_mailbox($mbox_name) : $this->mailbox;
$key = "{$mailbox}:{$this->sort_field}:{$this->sort_order}:{$this->search_string}.thi";
// we have a saved search result, get index from there
if (!isset($this->cache[$key]) && $this->search_string
&& $this->search_threads && $mailbox == $this->mailbox)
{
// use message IDs for better performance
$ids = array_keys_recursive($this->search_set['tree']);
$this->cache[$key] = $this->_flatten_threads($mailbox, $this->search_set['tree'], $ids);
}
// have stored it in RAM
if (isset($this->cache[$key]))
return $this->cache[$key];
/*
// check local cache
$cache_key = $mailbox.'.msg';
$cache_status = $this->check_cache_status($mailbox, $cache_key);
// cache is OK
if ($cache_status>0)
{
$a_index = $this->get_message_cache_index($cache_key, true, $this->sort_field, $this->sort_order);
return array_keys($a_index);
}
*/
// get all threads (default sort order)
list ($thread_tree) = $this->_fetch_threads($mailbox);
$this->cache[$key] = $this->_flatten_threads($mailbox, $thread_tree);
return $this->cache[$key];
}
/**
* Return array of threaded messages (all, not only roots)
*
* @param string Mailbox to get index from
* @param array Threaded messages array (see _fetch_threads())
* @param array Message IDs if we know what we need (e.g. search result)
* for better performance
* @return array Indexed array with message IDs
*
* @access private
*/
private function _flatten_threads($mailbox, $thread_tree, $ids=null)
{
if (empty($thread_tree))
return array();
$msg_index = $this->_sort_threads($mailbox, $thread_tree, $ids);
if ($this->sort_order == 'DESC')
$msg_index = array_reverse($msg_index);
// flatten threads array
$all_ids = array();
foreach($msg_index as $root) {
$all_ids[] = $root;
if (!empty($thread_tree[$root]))
$all_ids = array_merge($all_ids, array_keys_recursive($thread_tree[$root]));
}
return $all_ids;
}
/**
* @access private
*/
private function sync_header_index($mailbox)
{
$cache_key = $mailbox.'.msg';
$cache_index = $this->get_message_cache_index($cache_key);
// fetch complete message index
$a_message_index = iil_C_FetchHeaderIndex($this->conn, $mailbox, "1:*", 'UID', $this->skip_deleted);
if ($a_message_index === false)
return false;
foreach ($a_message_index as $id => $uid)
{
// message in cache at correct position
if ($cache_index[$id] == $uid)
{
unset($cache_index[$id]);
continue;
}
// message in cache but in wrong position
if (in_array((string)$uid, $cache_index, true))
{
unset($cache_index[$id]);
}
// other message at this position
if (isset($cache_index[$id]))
{
$for_remove[] = $cache_index[$id];
unset($cache_index[$id]);
}
$for_update[] = $id;
}
// clear messages at wrong positions and those deleted that are still in cache_index
if (!empty($for_remove))
$cache_index = array_merge($cache_index, $for_remove);
if (!empty($cache_index))
$this->remove_message_cache($cache_key, $cache_index);
// fetch complete headers and add to cache
if (!empty($for_update)) {
if ($headers = iil_C_FetchHeader($this->conn, $mailbox, join(',', $for_update), false, $this->fetch_add_headers))
foreach ($headers as $header)
$this->add_message_cache($cache_key, $header->id, $header, NULL,
in_array($header->uid, (array)$for_remove));
}
}
/**
* Invoke search request to IMAP server
*
* @param string mailbox name to search in
* @param string search string
* @param string search string charset
* @param string header field to sort by
* @return array search results as list of message ids
* @access public
*/
function search($mbox_name='', $str=NULL, $charset=NULL, $sort_field=NULL)
{
if (!$str)
return false;
$mailbox = $mbox_name ? $this->mod_mailbox($mbox_name) : $this->mailbox;
$results = $this->_search_index($mailbox, $str, $charset, $sort_field);
// try search with US-ASCII charset (should be supported by server)
// only if UTF-8 search is not supported
if (empty($results) && !is_array($results) && !empty($charset) && $charset != 'US-ASCII')
{
// convert strings to US_ASCII
if(preg_match_all('/\{([0-9]+)\}\r\n/', $str, $matches, PREG_OFFSET_CAPTURE))
{
$last = 0; $res = '';
foreach($matches[1] as $m)
{
$string_offset = $m[1] + strlen($m[0]) + 4; // {}\r\n
$string = substr($str, $string_offset - 1, $m[0]);
$string = rcube_charset_convert($string, $charset, 'US-ASCII');
if (!$string) continue;
$res .= sprintf("%s{%d}\r\n%s", substr($str, $last, $m[1] - $last - 1), strlen($string), $string);
$last = $m[0] + $string_offset - 1;
}
if ($last < strlen($str))
$res .= substr($str, $last, strlen($str)-$last);
}
else // strings for conversion not found
$res = $str;
$results = $this->search($mbox_name, $res, NULL, $sort_field);
}
$this->set_search_set($str, $results, $charset, $sort_field, (bool)$this->threading);
return $results;
}
/**
* Private search method
*
* @return array search results as list of message ids
* @access private
* @see rcube_imap::search()
*/
private function _search_index($mailbox, $criteria='ALL', $charset=NULL, $sort_field=NULL)
{
$orig_criteria = $criteria;
if ($this->skip_deleted && !preg_match('/UNDELETED/', $criteria))
$criteria = 'UNDELETED '.$criteria;
if ($this->threading) {
list ($thread_tree, $msg_depth, $has_children) = iil_C_Thread($this->conn,
$mailbox, $this->threading, $criteria, $charset);
$a_messages = array(
'tree' => $thread_tree,
'depth' => $msg_depth,
'children' => $has_children
);
}
else if ($sort_field && $this->get_capability('SORT')) {
$charset = $charset ? $charset : $this->default_charset;
$a_messages = iil_C_Sort($this->conn, $mailbox, $sort_field, $criteria, false, $charset);
if (!$a_messages)
return array();
}
else {
if ($orig_criteria == 'ALL') {
$max = $this->_messagecount($mailbox);
$a_messages = $max ? range(1, $max) : array();
}
else {
$a_messages = iil_C_Search($this->conn, $mailbox, ($charset ? "CHARSET $charset " : '') . $criteria);
if (!$a_messages)
return array();
// I didn't found that SEARCH always returns sorted IDs
if (!$this->sort_field)
sort($a_messages);
}
}
// update messagecount cache ?
// $a_mailbox_cache = get_cache('messagecount');
// $a_mailbox_cache[$mailbox][$criteria] = sizeof($a_messages);
// $this->update_cache('messagecount', $a_mailbox_cache);
return $a_messages;
}
/**
* Sort thread
*
* @param string Mailbox name
* @param array Unsorted thread tree (iil_C_Thread() result)
* @param array Message IDs if we know what we need (e.g. search result)
* @return array Sorted roots IDs
* @access private
*/
private function _sort_threads($mailbox, $thread_tree, $ids=NULL)
{
// THREAD=ORDEREDSUBJECT: sorting by sent date of root message
// THREAD=REFERENCES: sorting by sent date of root message
// THREAD=REFS: sorting by the most recent date in each thread
// default sorting
if (!$this->sort_field || ($this->sort_field == 'date' && $this->threading == 'REFS')) {
return array_keys((array)$thread_tree);
}
// here we'll implement REFS sorting, for performance reason
else { // ($sort_field == 'date' && $this->threading != 'REFS')
// use SORT command
if ($this->get_capability('SORT')) {
$a_index = iil_C_Sort($this->conn, $mailbox, $this->sort_field,
!empty($ids) ? $ids : ($this->skip_deleted ? 'UNDELETED' : ''));
// return unsorted tree if we've got no index data
if (!$a_index)
return array_keys((array)$thread_tree);
}
else {
// fetch specified headers for all messages and sort them
$a_index = iil_C_FetchHeaderIndex($this->conn, $mailbox, !empty($ids) ? $ids : "1:*",
$this->sort_field, $this->skip_deleted);
// return unsorted tree if we've got no index data
if (!$a_index)
return array_keys((array)$thread_tree);
asort($a_index); // ASC
$a_index = array_values($a_index);
}
return $this->_sort_thread_refs($thread_tree, $a_index);
}
}
/**
* THREAD=REFS sorting implementation
*
* @param array Thread tree array (message identifiers as keys)
* @param array Array of sorted message identifiers
* @return array Array of sorted roots messages
* @access private
*/
private function _sort_thread_refs($tree, $index)
{
if (empty($tree))
return array();
$index = array_combine(array_values($index), $index);
// assign roots
foreach ($tree as $idx => $val) {
$index[$idx] = $idx;
if (!empty($val)) {
$idx_arr = array_keys_recursive($tree[$idx]);
foreach ($idx_arr as $subidx)
$index[$subidx] = $idx;
}
}
$index = array_values($index);
// create sorted array of roots
$msg_index = array();
if ($this->sort_order != 'DESC') {
foreach ($index as $idx)
if (!isset($msg_index[$idx]))
$msg_index[$idx] = $idx;
$msg_index = array_values($msg_index);
}
else {
for ($x=count($index)-1; $x>=0; $x--)
if (!isset($msg_index[$index[$x]]))
$msg_index[$index[$x]] = $index[$x];
$msg_index = array_reverse($msg_index);
}
return $msg_index;
}
/**
* Refresh saved search set
*
* @return array Current search set
*/
function refresh_search()
{
if (!empty($this->search_string))
$this->search_set = $this->search('', $this->search_string, $this->search_charset,
$this->search_sort_field, $this->search_threads);
return $this->get_search_set();
}
/**
* Check if the given message ID is part of the current search set
*
* @return boolean True on match or if no search request is stored
*/
function in_searchset($msgid)
{
if (!empty($this->search_string))
return in_array("$msgid", (array)$this->search_set, true);
else
return true;
}
/**
* Return message headers object of a specific message
*
* @param int Message ID
* @param string Mailbox to read from
* @param boolean True if $id is the message UID
* @param boolean True if we need also BODYSTRUCTURE in headers
* @return object Message headers representation
*/
function get_headers($id, $mbox_name=NULL, $is_uid=true, $bodystr=false)
{
$mailbox = $mbox_name ? $this->mod_mailbox($mbox_name) : $this->mailbox;
$uid = $is_uid ? $id : $this->_id2uid($id);
// get cached headers
if ($uid && ($headers = &$this->get_cached_message($mailbox.'.msg', $uid)))
return $headers;
$headers = iil_C_FetchHeader($this->conn, $mailbox, $id, $is_uid, $bodystr, $this->fetch_add_headers);
// write headers cache
if ($headers)
{
if ($headers->uid && $headers->id)
$this->uid_id_map[$mailbox][$headers->uid] = $headers->id;
$this->add_message_cache($mailbox.'.msg', $headers->id, $headers, NULL, true);
}
return $headers;
}
/**
* Fetch body structure from the IMAP server and build
* an object structure similar to the one generated by PEAR::Mail_mimeDecode
*
* @param int Message UID to fetch
* @param string Message BODYSTRUCTURE string (optional)
* @return object rcube_message_part Message part tree or False on failure
*/
function &get_structure($uid, $structure_str='')
{
$cache_key = $this->mailbox.'.msg';
$headers = &$this->get_cached_message($cache_key, $uid);
// return cached message structure
if (is_object($headers) && is_object($headers->structure)) {
return $headers->structure;
}
if (!$structure_str)
$structure_str = iil_C_FetchStructureString($this->conn, $this->mailbox, $uid, true);
$structure = iml_GetRawStructureArray($structure_str);
$struct = false;
// parse structure and add headers
if (!empty($structure))
{
$headers = $this->get_headers($uid);
$this->_msg_id = $headers->id;
// set message charset from message headers
if ($headers->charset)
$this->struct_charset = $headers->charset;
else
$this->struct_charset = $this->_structure_charset($structure);
// Here we can recognize malformed BODYSTRUCTURE and
// 1. [@TODO] parse the message in other way to create our own message structure
// 2. or just show the raw message body.
// Example of structure for malformed MIME message:
// ("text" "plain" ("charset" "us-ascii") NIL NIL "7bit" 2154 70 NIL NIL NIL)
if ($headers->ctype && $headers->ctype != 'text/plain'
&& $structure[0] == 'text' && $structure[1] == 'plain') {
return false;
}
$struct = &$this->_structure_part($structure);
$struct->headers = get_object_vars($headers);
// don't trust given content-type
if (empty($struct->parts) && !empty($struct->headers['ctype']))
{
$struct->mime_id = '1';
$struct->mimetype = strtolower($struct->headers['ctype']);
list($struct->ctype_primary, $struct->ctype_secondary) = explode('/', $struct->mimetype);
}
// write structure to cache
if ($this->caching_enabled)
$this->add_message_cache($cache_key, $this->_msg_id, $headers, $struct);
}
return $struct;
}
/**
* Build message part object
*
* @access private
*/
function &_structure_part($part, $count=0, $parent='', $mime_headers=null, $raw_headers=null)
{
$struct = new rcube_message_part;
$struct->mime_id = empty($parent) ? (string)$count : "$parent.$count";
// multipart
if (is_array($part[0]))
{
$struct->ctype_primary = 'multipart';
// find first non-array entry
for ($i=1; $i<count($part); $i++)
if (!is_array($part[$i]))
{
$struct->ctype_secondary = strtolower($part[$i]);
break;
}
$struct->mimetype = 'multipart/'.$struct->ctype_secondary;
// build parts list for headers pre-fetching
for ($i=0, $count=0; $i<count($part); $i++)
if (is_array($part[$i]) && count($part[$i]) > 3) {
// fetch message headers if message/rfc822 or named part (could contain Content-Location header)
if (!is_array($part[$i][0])) {
$tmp_part_id = $struct->mime_id ? $struct->mime_id.'.'.($i+1) : $i+1;
if (strtolower($part[$i][0]) == 'message' && strtolower($part[$i][1]) == 'rfc822') {
$raw_part_headers[] = $tmp_part_id;
$mime_part_headers[] = $tmp_part_id;
}
else if (in_array('name', (array)$part[$i][2]) && (empty($part[$i][3]) || $part[$i][3]=='NIL')) {
$mime_part_headers[] = $tmp_part_id;
}
}
}
// pre-fetch headers of all parts (in one command for better performance)
// @TODO: we could do this before _structure_part() call, to fetch
// headers for parts on all levels
if ($mime_part_headers)
$mime_part_headers = iil_C_FetchMIMEHeaders($this->conn, $this->mailbox,
$this->_msg_id, $mime_part_headers);
// we'll need a real content-type of message/rfc822 part
if ($raw_part_headers)
$raw_part_headers = iil_C_FetchMIMEHeaders($this->conn, $this->mailbox,
$this->_msg_id, $raw_part_headers, false);
$struct->parts = array();
for ($i=0, $count=0; $i<count($part); $i++)
if (is_array($part[$i]) && count($part[$i]) > 3) {
$tmp_part_id = $struct->mime_id ? $struct->mime_id.'.'.($i+1) : $i+1;
$struct->parts[] = $this->_structure_part($part[$i], ++$count, $struct->mime_id,
$mime_part_headers[$tmp_part_id], $raw_part_headers[$tmp_part_id]);
}
return $struct;
}
// regular part
$struct->ctype_primary = strtolower($part[0]);
$struct->ctype_secondary = strtolower($part[1]);
$struct->mimetype = $struct->ctype_primary.'/'.$struct->ctype_secondary;
// read content type parameters
if (is_array($part[2]))
{
$struct->ctype_parameters = array();
for ($i=0; $i<count($part[2]); $i+=2)
$struct->ctype_parameters[strtolower($part[2][$i])] = $part[2][$i+1];
if (isset($struct->ctype_parameters['charset']))
$struct->charset = $struct->ctype_parameters['charset'];
}
// read content encoding
if (!empty($part[5]) && $part[5]!='NIL')
{
$struct->encoding = strtolower($part[5]);
$struct->headers['content-transfer-encoding'] = $struct->encoding;
}
// get part size
if (!empty($part[6]) && $part[6]!='NIL')
$struct->size = intval($part[6]);
// read part disposition
$di = count($part) - 2;
if ((is_array($part[$di]) && count($part[$di]) == 2 && is_array($part[$di][1])) ||
(is_array($part[--$di]) && count($part[$di]) == 2))
{
$struct->disposition = strtolower($part[$di][0]);
if (is_array($part[$di][1]))
for ($n=0; $n<count($part[$di][1]); $n+=2)
$struct->d_parameters[strtolower($part[$di][1][$n])] = $part[$di][1][$n+1];
}
// get child parts
if (is_array($part[8]) && $di != 8)
{
$struct->parts = array();
for ($i=0, $count=0; $i<count($part[8]); $i++)
if (is_array($part[8][$i]) && count($part[8][$i]) > 5)
$struct->parts[] = $this->_structure_part($part[8][$i], ++$count, $struct->mime_id);
}
// get part ID
if (!empty($part[3]) && $part[3]!='NIL')
{
$struct->content_id = $part[3];
$struct->headers['content-id'] = $part[3];
if (empty($struct->disposition))
$struct->disposition = 'inline';
}
// fetch message headers if message/rfc822 or named part (could contain Content-Location header)
if ($struct->ctype_primary == 'message' || ($struct->ctype_parameters['name'] && !$struct->content_id)) {
if (empty($mime_headers))
$mime_headers = iil_C_FetchPartHeader($this->conn, $this->mailbox, $this->_msg_id, false, $struct->mime_id);
$struct->headers = $this->_parse_headers($mime_headers) + $struct->headers;
// get real headers for message of type 'message/rfc822'
if ($struct->mimetype == 'message/rfc822') {
if (empty($raw_headers))
$raw_headers = iil_C_FetchMIMEHeaders($this->conn, $this->mailbox, $this->_msg_id, (array)$struct->mime_id, false);
$struct->real_headers = $this->_parse_headers($raw_headers);
// get real content-type of message/rfc822
if (preg_match('/^([a-z0-9_\/-]+)/i', $struct->real_headers['content-type'], $matches)) {
$struct->real_mimetype = strtolower($matches[1]);
}
}
}
if ($struct->ctype_primary=='message') {
if (is_array($part[8]) && $di != 8 && empty($struct->parts))
$struct->parts[] = $this->_structure_part($part[8], ++$count, $struct->mime_id);
}
// normalize filename property
$this->_set_part_filename($struct, $mime_headers);
return $struct;
}
/**
* Set attachment filename from message part structure
*
* @access private
* @param object rcube_message_part Part object
* @param string Part's raw headers
*/
private function _set_part_filename(&$part, $headers=null)
{
if (!empty($part->d_parameters['filename']))
$filename_mime = $part->d_parameters['filename'];
else if (!empty($part->d_parameters['filename*']))
$filename_encoded = $part->d_parameters['filename*'];
else if (!empty($part->ctype_parameters['name*']))
$filename_encoded = $part->ctype_parameters['name*'];
// RFC2231 value continuations
// TODO: this should be rewrited to support RFC2231 4.1 combinations
else if (!empty($part->d_parameters['filename*0'])) {
$i = 0;
while (isset($part->d_parameters['filename*'.$i])) {
$filename_mime .= $part->d_parameters['filename*'.$i];
$i++;
}
// some servers (eg. dovecot-1.x) have no support for parameter value continuations
// we must fetch and parse headers "manually"
if ($i<2) {
if (!$headers)
$headers = iil_C_FetchPartHeader($this->conn, $this->mailbox, $this->_msg_id, false, $part->mime_id);
$filename_mime = '';
$i = 0;
while (preg_match('/filename\*'.$i.'\s*=\s*"*([^"\n;]+)[";]*/', $headers, $matches)) {
$filename_mime .= $matches[1];
$i++;
}
}
}
else if (!empty($part->d_parameters['filename*0*'])) {
$i = 0;
while (isset($part->d_parameters['filename*'.$i.'*'])) {
$filename_encoded .= $part->d_parameters['filename*'.$i.'*'];
$i++;
}
if ($i<2) {
if (!$headers)
$headers = iil_C_FetchPartHeader($this->conn, $this->mailbox, $this->_msg_id, false, $part->mime_id);
$filename_encoded = '';
$i = 0; $matches = array();
while (preg_match('/filename\*'.$i.'\*\s*=\s*"*([^"\n;]+)[";]*/', $headers, $matches)) {
$filename_encoded .= $matches[1];
$i++;
}
}
}
else if (!empty($part->ctype_parameters['name*0'])) {
$i = 0;
while (isset($part->ctype_parameters['name*'.$i])) {
$filename_mime .= $part->ctype_parameters['name*'.$i];
$i++;
}
if ($i<2) {
if (!$headers)
$headers = iil_C_FetchPartHeader($this->conn, $this->mailbox, $this->_msg_id, false, $part->mime_id);
$filename_mime = '';
$i = 0; $matches = array();
while (preg_match('/\s+name\*'.$i.'\s*=\s*"*([^"\n;]+)[";]*/', $headers, $matches)) {
$filename_mime .= $matches[1];
$i++;
}
}
}
else if (!empty($part->ctype_parameters['name*0*'])) {
$i = 0;
while (isset($part->ctype_parameters['name*'.$i.'*'])) {
$filename_encoded .= $part->ctype_parameters['name*'.$i.'*'];
$i++;
}
if ($i<2) {
if (!$headers)
$headers = iil_C_FetchPartHeader($this->conn, $this->mailbox, $this->_msg_id, false, $part->mime_id);
$filename_encoded = '';
$i = 0; $matches = array();
while (preg_match('/\s+name\*'.$i.'\*\s*=\s*"*([^"\n;]+)[";]*/', $headers, $matches)) {
$filename_encoded .= $matches[1];
$i++;
}
}
}
// read 'name' after rfc2231 parameters as it may contains truncated filename (from Thunderbird)
else if (!empty($part->ctype_parameters['name']))
$filename_mime = $part->ctype_parameters['name'];
// Content-Disposition
else if (!empty($part->headers['content-description']))
$filename_mime = $part->headers['content-description'];
else
return;
// decode filename
if (!empty($filename_mime)) {
$part->filename = rcube_imap::decode_mime_string($filename_mime,
$part->charset ? $part->charset : ($this->struct_charset ? $this->struct_charset :
rc_detect_encoding($filename_mime, $this->default_charset)));
}
else if (!empty($filename_encoded)) {
// decode filename according to RFC 2231, Section 4
if (preg_match("/^([^']*)'[^']*'(.*)$/", $filename_encoded, $fmatches)) {
$filename_charset = $fmatches[1];
$filename_encoded = $fmatches[2];
}
$part->filename = rcube_charset_convert(urldecode($filename_encoded), $filename_charset);
}
}
/**
* Get charset name from message structure (first part)
*
* @access private
* @param array Message structure
* @return string Charset name
*/
function _structure_charset($structure)
{
while (is_array($structure)) {
if (is_array($structure[2]) && $structure[2][0] == 'charset')
return $structure[2][1];
$structure = $structure[0];
}
}
/**
* Fetch message body of a specific message from the server
*
* @param int Message UID
* @param string Part number
* @param object rcube_message_part Part object created by get_structure()
* @param mixed True to print part, ressource to write part contents in
* @param resource File pointer to save the message part
* @return string Message/part body if not printed
*/
function &get_message_part($uid, $part=1, $o_part=NULL, $print=NULL, $fp=NULL)
{
// get part encoding if not provided
if (!is_object($o_part))
{
$structure_str = iil_C_FetchStructureString($this->conn, $this->mailbox, $uid, true);
$structure = iml_GetRawStructureArray($structure_str);
// error or message not found
if (empty($structure))
return false;
$part_type = iml_GetPartTypeCode($structure, $part);
$o_part = new rcube_message_part;
$o_part->ctype_primary = $part_type==0 ? 'text' : ($part_type==2 ? 'message' : 'other');
$o_part->encoding = strtolower(iml_GetPartEncodingString($structure, $part));
$o_part->charset = iml_GetPartCharset($structure, $part);
}
// TODO: Add caching for message parts
if (!$part) $part = 'TEXT';
$body = iil_C_HandlePartBody($this->conn, $this->mailbox, $uid, true, $part,
$o_part->encoding, $print, $fp);
if ($fp || $print)
return true;
// convert charset (if text or message part)
if ($o_part->ctype_primary=='text' || $o_part->ctype_primary=='message') {
// assume default if no charset specified
if (empty($o_part->charset) || strtolower($o_part->charset) == 'us-ascii')
$o_part->charset = $this->default_charset;
$body = rcube_charset_convert($body, $o_part->charset);
}
return $body;
}
/**
* Fetch message body of a specific message from the server
*
* @param int Message UID
* @return string Message/part body
* @see rcube_imap::get_message_part()
*/
function &get_body($uid, $part=1)
{
$headers = $this->get_headers($uid);
return rcube_charset_convert($this->get_message_part($uid, $part, NULL),
$headers->charset ? $headers->charset : $this->default_charset);
}
/**
* Returns the whole message source as string
*
* @param int Message UID
* @return string Message source string
*/
function &get_raw_body($uid)
{
return iil_C_HandlePartBody($this->conn, $this->mailbox, $uid, true);
}
/**
* Returns the message headers as string
*
* @param int Message UID
* @return string Message headers string
*/
function &get_raw_headers($uid)
{
return iil_C_FetchPartHeader($this->conn, $this->mailbox, $uid, true);
}
/**
* Sends the whole message source to stdout
*
* @param int Message UID
*/
function print_raw_body($uid)
{
iil_C_HandlePartBody($this->conn, $this->mailbox, $uid, true, NULL, NULL, true);
}
/**
* Set message flag to one or several messages
*
* @param mixed Message UIDs as array or as comma-separated string
* @param string Flag to set: SEEN, UNDELETED, DELETED, RECENT, ANSWERED, DRAFT, MDNSENT
* @param string Folder name
* @param boolean True to skip message cache clean up
* @return boolean True on success, False on failure
*/
function set_flag($uids, $flag, $mbox_name=NULL, $skip_cache=false)
{
$mailbox = $mbox_name ? $this->mod_mailbox($mbox_name) : $this->mailbox;
$flag = strtoupper($flag);
if (!is_array($uids))
$uids = explode(',',$uids);
if (strpos($flag, 'UN') === 0)
$result = iil_C_UnFlag($this->conn, $mailbox, join(',', $uids), substr($flag, 2));
else
$result = iil_C_Flag($this->conn, $mailbox, join(',', $uids), $flag);
// reload message headers if cached
if ($this->caching_enabled && !$skip_cache) {
$cache_key = $mailbox.'.msg';
$this->remove_message_cache($cache_key, $uids);
}
// set nr of messages that were flaged
$count = count($uids);
// clear message count cache
if ($result && $flag=='SEEN')
$this->_set_messagecount($mailbox, 'UNSEEN', $count*(-1));
else if ($result && $flag=='UNSEEN')
$this->_set_messagecount($mailbox, 'UNSEEN', $count);
else if ($result && $flag=='DELETED')
$this->_set_messagecount($mailbox, 'ALL', $count*(-1));
return $result;
}
/**
* Remove message flag for one or several messages
*
* @param mixed Message UIDs as array or as comma-separated string
* @param string Flag to unset: SEEN, DELETED, RECENT, ANSWERED, DRAFT, MDNSENT
* @param string Folder name
* @return boolean True on success, False on failure
* @see set_flag
*/
function unset_flag($uids, $flag, $mbox_name=NULL)
{
return $this->set_flag($uids, 'UN'.$flag, $mbox_name);
}
/**
* Append a mail message (source) to a specific mailbox
*
* @param string Target mailbox
* @param string The message source string or filename
* @param string Headers string if $message contains only the body
* @param boolean True if $message is a filename
*
* @return boolean True on success, False on error
*/
function save_message($mbox_name, &$message, $headers='', $is_file=false)
{
$mailbox = $this->mod_mailbox($mbox_name);
// make sure mailbox exists
if ($this->mailbox_exists($mbox_name, true)) {
if ($is_file) {
$separator = rcmail::get_instance()->config->header_delimiter();
$saved = iil_C_AppendFromFile($this->conn, $mailbox, $message,
$headers, $separator.$separator);
}
else
$saved = iil_C_Append($this->conn, $mailbox, $message);
}
if ($saved)
{
// increase messagecount of the target mailbox
$this->_set_messagecount($mailbox, 'ALL', 1);
}
return $saved;
}
/**
* Move a message from one mailbox to another
*
* @param string List of UIDs to move, separated by comma
* @param string Target mailbox
* @param string Source mailbox
* @return boolean True on success, False on error
*/
function move_message($uids, $to_mbox, $from_mbox='')
{
$fbox = $from_mbox;
$tbox = $to_mbox;
$to_mbox = $this->mod_mailbox($to_mbox);
$from_mbox = $from_mbox ? $this->mod_mailbox($from_mbox) : $this->mailbox;
// convert the list of uids to array
$a_uids = is_string($uids) ? explode(',', $uids) : (is_array($uids) ? $uids : NULL);
// exit if no message uids are specified
if (!is_array($a_uids) || empty($a_uids))
return false;
// make sure mailbox exists
if ($to_mbox != 'INBOX' && !$this->mailbox_exists($tbox, true))
{
if (in_array($tbox, $this->default_folders))
$this->create_mailbox($tbox, true);
else
return false;
}
// flag messages as read before moving them
$config = rcmail::get_instance()->config;
if ($config->get('read_when_deleted') && $tbox == $config->get('trash_mbox')) {
// don't flush cache (4th argument)
$this->set_flag($uids, 'SEEN', $fbox, true);
}
// move messages
$iil_move = iil_C_Move($this->conn, join(',', $a_uids), $from_mbox, $to_mbox);
$moved = !($iil_move === false || $iil_move < 0);
// send expunge command in order to have the moved message
// really deleted from the source mailbox
if ($moved) {
$this->_expunge($from_mbox, false, $a_uids);
$this->_clear_messagecount($from_mbox);
$this->_clear_messagecount($to_mbox);
}
// moving failed
else if ($config->get('delete_always', false) && $tbox == $config->get('trash_mbox')) {
$moved = $this->delete_message($a_uids, $fbox);
}
if ($moved) {
// unset threads internal cache
unset($this->icache['threads']);
// remove message ids from search set
if ($this->search_set && $from_mbox == $this->mailbox) {
// threads are too complicated to just remove messages from set
if ($this->search_threads)
$this->refresh_search();
else {
foreach ($a_uids as $uid)
$a_mids[] = $this->_uid2id($uid, $from_mbox);
$this->search_set = array_diff($this->search_set, $a_mids);
}
}
// update cached message headers
$cache_key = $from_mbox.'.msg';
if ($start_index = $this->get_message_cache_index_min($cache_key, $a_uids)) {
// clear cache from the lowest index on
$this->clear_message_cache($cache_key, $start_index);
}
}
return $moved;
}
/**
* Copy a message from one mailbox to another
*
* @param string List of UIDs to copy, separated by comma
* @param string Target mailbox
* @param string Source mailbox
* @return boolean True on success, False on error
*/
function copy_message($uids, $to_mbox, $from_mbox='')
{
$fbox = $from_mbox;
$tbox = $to_mbox;
$to_mbox = $this->mod_mailbox($to_mbox);
$from_mbox = $from_mbox ? $this->mod_mailbox($from_mbox) : $this->mailbox;
// convert the list of uids to array
$a_uids = is_string($uids) ? explode(',', $uids) : (is_array($uids) ? $uids : NULL);
// exit if no message uids are specified
if (!is_array($a_uids) || empty($a_uids))
return false;
// make sure mailbox exists
if ($to_mbox != 'INBOX' && !$this->mailbox_exists($tbox, true))
{
if (in_array($tbox, $this->default_folders))
$this->create_mailbox($tbox, true);
else
return false;
}
// copy messages
$iil_copy = iil_C_Copy($this->conn, join(',', $a_uids), $from_mbox, $to_mbox);
$copied = !($iil_copy === false || $iil_copy < 0);
if ($copied) {
$this->_clear_messagecount($to_mbox);
}
return $copied;
}
/**
* Mark messages as deleted and expunge mailbox
*
* @param string List of UIDs to move, separated by comma
* @param string Source mailbox
* @return boolean True on success, False on error
*/
function delete_message($uids, $mbox_name='')
{
$mailbox = $mbox_name ? $this->mod_mailbox($mbox_name) : $this->mailbox;
// convert the list of uids to array
$a_uids = is_string($uids) ? explode(',', $uids) : (is_array($uids) ? $uids : NULL);
// exit if no message uids are specified
if (!is_array($a_uids) || empty($a_uids))
return false;
$deleted = iil_C_Delete($this->conn, $mailbox, join(',', $a_uids));
if ($deleted) {
// send expunge command in order to have the deleted message
// really deleted from the mailbox
$this->_expunge($mailbox, false, $a_uids);
$this->_clear_messagecount($mailbox);
unset($this->uid_id_map[$mailbox]);
// unset threads internal cache
unset($this->icache['threads']);
// remove message ids from search set
if ($this->search_set && $mailbox == $this->mailbox) {
// threads are too complicated to just remove messages from set
if ($this->search_threads)
$this->refresh_search();
else {
foreach ($a_uids as $uid)
$a_mids[] = $this->_uid2id($uid, $mailbox);
$this->search_set = array_diff($this->search_set, $a_mids);
}
}
// remove deleted messages from cache
$cache_key = $mailbox.'.msg';
if ($start_index = $this->get_message_cache_index_min($cache_key, $a_uids)) {
// clear cache from the lowest index on
$this->clear_message_cache($cache_key, $start_index);
}
}
return $deleted;
}
/**
* Clear all messages in a specific mailbox
*
* @param string Mailbox name
* @return int Above 0 on success
*/
function clear_mailbox($mbox_name=NULL)
{
$mailbox = !empty($mbox_name) ? $this->mod_mailbox($mbox_name) : $this->mailbox;
$msg_count = $this->_messagecount($mailbox, 'ALL');
if ($msg_count>0)
{
$cleared = iil_C_ClearFolder($this->conn, $mailbox);
// make sure the message count cache is cleared as well
if ($cleared)
{
$this->clear_message_cache($mailbox.'.msg');
$a_mailbox_cache = $this->get_cache('messagecount');
unset($a_mailbox_cache[$mailbox]);
$this->update_cache('messagecount', $a_mailbox_cache);
}
return $cleared;
}
else
return 0;
}
/**
* Send IMAP expunge command and clear cache
*
* @param string Mailbox name
* @param boolean False if cache should not be cleared
* @return boolean True on success
*/
function expunge($mbox_name='', $clear_cache=true)
{
$mailbox = $mbox_name ? $this->mod_mailbox($mbox_name) : $this->mailbox;
return $this->_expunge($mailbox, $clear_cache);
}
/**
* Send IMAP expunge command and clear cache
*
* @see rcube_imap::expunge()
* @param string Mailbox name
* @param boolean False if cache should not be cleared
* @param string List of UIDs to remove, separated by comma
* @return boolean True on success
* @access private
*/
private function _expunge($mailbox, $clear_cache=true, $uids=NULL)
{
if ($uids && $this->get_capability('UIDPLUS'))
$a_uids = is_array($uids) ? join(',', $uids) : $uids;
else
$a_uids = NULL;
$result = iil_C_Expunge($this->conn, $mailbox, $a_uids);
if ($result>=0 && $clear_cache)
{
$this->clear_message_cache($mailbox.'.msg');
$this->_clear_messagecount($mailbox);
}
return $result;
}
/* --------------------------------
* folder managment
* --------------------------------*/
/**
* Get a list of all folders available on the IMAP server
*
* @param string IMAP root dir
* @return array Indexed array with folder names
*/
function list_unsubscribed($root='')
{
static $sa_unsubscribed;
if (is_array($sa_unsubscribed))
return $sa_unsubscribed;
// retrieve list of folders from IMAP server
$a_mboxes = iil_C_ListMailboxes($this->conn, $this->mod_mailbox($root), '*');
// modify names with root dir
foreach ($a_mboxes as $mbox_name)
{
$name = $this->mod_mailbox($mbox_name, 'out');
if (strlen($name))
$a_folders[] = $name;
}
// filter folders and sort them
$sa_unsubscribed = $this->_sort_mailbox_list($a_folders);
return $sa_unsubscribed;
}
/**
* Get mailbox quota information
* added by Nuny
*
* @return mixed Quota info or False if not supported
*/
function get_quota()
{
if ($this->get_capability('QUOTA'))
return iil_C_GetQuota($this->conn);
return false;
}
/**
* Subscribe to a specific mailbox(es)
*
* @param array Mailbox name(s)
* @return boolean True on success
*/
function subscribe($a_mboxes)
{
if (!is_array($a_mboxes))
$a_mboxes = array($a_mboxes);
// let this common function do the main work
return $this->_change_subscription($a_mboxes, 'subscribe');
}
/**
* Unsubscribe mailboxes
*
* @param array Mailbox name(s)
* @return boolean True on success
*/
function unsubscribe($a_mboxes)
{
if (!is_array($a_mboxes))
$a_mboxes = array($a_mboxes);
// let this common function do the main work
return $this->_change_subscription($a_mboxes, 'unsubscribe');
}
/**
* Create a new mailbox on the server and register it in local cache
*
* @param string New mailbox name (as utf-7 string)
* @param boolean True if the new mailbox should be subscribed
* @param string Name of the created mailbox, false on error
*/
function create_mailbox($name, $subscribe=false)
{
$result = false;
// reduce mailbox name to 100 chars
$name = substr($name, 0, 100);
$abs_name = $this->mod_mailbox($name);
$result = iil_C_CreateFolder($this->conn, $abs_name);
// try to subscribe it
if ($result && $subscribe)
$this->subscribe($name);
return $result ? $name : false;
}
/**
* Set a new name to an existing mailbox
*
* @param string Mailbox to rename (as utf-7 string)
* @param string New mailbox name (as utf-7 string)
* @return string Name of the renames mailbox, False on error
*/
function rename_mailbox($mbox_name, $new_name)
{
$result = false;
// encode mailbox name and reduce it to 100 chars
$name = substr($new_name, 0, 100);
// make absolute path
$mailbox = $this->mod_mailbox($mbox_name);
$abs_name = $this->mod_mailbox($name);
// check if mailbox is subscribed
$a_subscribed = $this->_list_mailboxes();
$subscribed = in_array($mailbox, $a_subscribed);
// unsubscribe folder
if ($subscribed)
iil_C_UnSubscribe($this->conn, $mailbox);
if (strlen($abs_name))
$result = iil_C_RenameFolder($this->conn, $mailbox, $abs_name);
if ($result)
{
$delm = $this->get_hierarchy_delimiter();
// check if mailbox children are subscribed
foreach ($a_subscribed as $c_subscribed)
if (preg_match('/^'.preg_quote($mailbox.$delm, '/').'/', $c_subscribed))
{
iil_C_UnSubscribe($this->conn, $c_subscribed);
iil_C_Subscribe($this->conn, preg_replace('/^'.preg_quote($mailbox, '/').'/', $abs_name, $c_subscribed));
}
// clear cache
$this->clear_message_cache($mailbox.'.msg');
$this->clear_cache('mailboxes');
}
// try to subscribe it
if ($result && $subscribed)
iil_C_Subscribe($this->conn, $abs_name);
return $result ? $name : false;
}
/**
* Remove mailboxes from server
*
* @param string Mailbox name(s) string/array
* @return boolean True on success
*/
function delete_mailbox($mbox_name)
{
$deleted = false;
if (is_array($mbox_name))
$a_mboxes = $mbox_name;
else if (is_string($mbox_name) && strlen($mbox_name))
$a_mboxes = explode(',', $mbox_name);
if (is_array($a_mboxes))
foreach ($a_mboxes as $mbox_name)
{
$mailbox = $this->mod_mailbox($mbox_name);
$sub_mboxes = iil_C_ListMailboxes($this->conn, $this->mod_mailbox(''),
$mbox_name . $this->delimiter . '*');
// unsubscribe mailbox before deleting
iil_C_UnSubscribe($this->conn, $mailbox);
// send delete command to server
$result = iil_C_DeleteFolder($this->conn, $mailbox);
if ($result >= 0) {
$deleted = true;
$this->clear_message_cache($mailbox.'.msg');
}
foreach ($sub_mboxes as $c_mbox)
if ($c_mbox != 'INBOX') {
iil_C_UnSubscribe($this->conn, $c_mbox);
$result = iil_C_DeleteFolder($this->conn, $c_mbox);
if ($result >= 0) {
$deleted = true;
$this->clear_message_cache($c_mbox.'.msg');
}
}
}
// clear mailboxlist cache
if ($deleted)
$this->clear_cache('mailboxes');
return $deleted;
}
/**
* Create all folders specified as default
*/
function create_default_folders()
{
// create default folders if they do not exist
foreach ($this->default_folders as $folder)
{
if (!$this->mailbox_exists($folder))
$this->create_mailbox($folder, true);
else if (!$this->mailbox_exists($folder, true))
$this->subscribe($folder);
}
}
/**
* Checks if folder exists and is subscribed
*
* @param string Folder name
* @param boolean Enable subscription checking
* @return boolean TRUE or FALSE
*/
function mailbox_exists($mbox_name, $subscription=false)
{
if ($mbox_name) {
if ($mbox_name == 'INBOX')
return true;
if ($subscription) {
if ($a_folders = iil_C_ListSubscribed($this->conn, $this->mod_mailbox(''), $mbox_name))
return true;
}
else {
$a_folders = iil_C_ListMailboxes($this->conn, $this->mod_mailbox(''), $mbox_mbox);
if (is_array($a_folders) && in_array($this->mod_mailbox($mbox_name), $a_folders))
return true;
}
}
return false;
}
/* --------------------------------
* internal caching methods
* --------------------------------*/
/**
* @access private
*/
function set_caching($set)
{
if ($set && is_object($this->db))
$this->caching_enabled = true;
else
$this->caching_enabled = false;
}
/**
* @access private
*/
function get_cache($key)
{
// read cache (if it was not read before)
if (!count($this->cache) && $this->caching_enabled)
{
return $this->_read_cache_record($key);
}
return $this->cache[$key];
}
/**
* @access private
*/
function update_cache($key, $data)
{
$this->cache[$key] = $data;
$this->cache_changed = true;
$this->cache_changes[$key] = true;
}
/**
* @access private
*/
function write_cache()
{
if ($this->caching_enabled && $this->cache_changed)
{
foreach ($this->cache as $key => $data)
{
if ($this->cache_changes[$key])
$this->_write_cache_record($key, serialize($data));
}
}
}
/**
* @access private
*/
function clear_cache($key=NULL)
{
if (!$this->caching_enabled)
return;
if ($key===NULL)
{
foreach ($this->cache as $key => $data)
$this->_clear_cache_record($key);
$this->cache = array();
$this->cache_changed = false;
$this->cache_changes = array();
}
else
{
$this->_clear_cache_record($key);
$this->cache_changes[$key] = false;
unset($this->cache[$key]);
}
}
/**
* @access private
*/
private function _read_cache_record($key)
{
if ($this->db)
{
// get cached data from DB
$sql_result = $this->db->query(
"SELECT cache_id, data, cache_key
FROM ".get_table_name('cache')."
WHERE user_id=?
AND cache_key LIKE 'IMAP.%'",
$_SESSION['user_id']);
while ($sql_arr = $this->db->fetch_assoc($sql_result))
{
$sql_key = preg_replace('/^IMAP\./', '', $sql_arr['cache_key']);
$this->cache_keys[$sql_key] = $sql_arr['cache_id'];
if (!isset($this->cache[$sql_key]))
$this->cache[$sql_key] = $sql_arr['data'] ? unserialize($sql_arr['data']) : false;
}
}
return $this->cache[$key];
}
/**
* @access private
*/
private function _write_cache_record($key, $data)
{
if (!$this->db)
return false;
// update existing cache record
if ($this->cache_keys[$key])
{
$this->db->query(
"UPDATE ".get_table_name('cache')."
SET created=". $this->db->now().", data=?
WHERE user_id=?
AND cache_key=?",
$data,
$_SESSION['user_id'],
'IMAP.'.$key);
}
// add new cache record
else
{
$this->db->query(
"INSERT INTO ".get_table_name('cache')."
(created, user_id, cache_key, data)
VALUES (".$this->db->now().", ?, ?, ?)",
$_SESSION['user_id'],
'IMAP.'.$key,
$data);
// get cache entry ID for this key
$sql_result = $this->db->query(
"SELECT cache_id
FROM ".get_table_name('cache')."
WHERE user_id=?
AND cache_key=?",
$_SESSION['user_id'],
'IMAP.'.$key);
if ($sql_arr = $this->db->fetch_assoc($sql_result))
$this->cache_keys[$key] = $sql_arr['cache_id'];
}
}
/**
* @access private
*/
private function _clear_cache_record($key)
{
$this->db->query(
"DELETE FROM ".get_table_name('cache')."
WHERE user_id=?
AND cache_key=?",
$_SESSION['user_id'],
'IMAP.'.$key);
unset($this->cache_keys[$key]);
}
/* --------------------------------
* message caching methods
* --------------------------------*/
/**
* Checks if the cache is up-to-date
*
* @param string Mailbox name
* @param string Internal cache key
* @return int Cache status: -3 = off, -2 = incomplete, -1 = dirty
*/
private function check_cache_status($mailbox, $cache_key)
{
if (!$this->caching_enabled)
return -3;
$cache_index = $this->get_message_cache_index($cache_key);
$msg_count = $this->_messagecount($mailbox);
$cache_count = count($cache_index);
// empty mailbox
if (!$msg_count)
return $cache_count ? -2 : 1;
// @TODO: We've got one big performance problem in cache status checking method
// E.g. mailbox contains 1000 messages, in cache table we've got first 100
// of them. Now if we want to display only that 100 (which we've got)
// check_cache_status returns 'incomplete' and messages are fetched
// from IMAP instead of DB.
if ($cache_count==$msg_count) {
if ($this->skip_deleted) {
$h_index = iil_C_FetchHeaderIndex($this->conn, $mailbox, "1:*", 'UID', $this->skip_deleted);
if (sizeof($h_index) == $cache_count) {
$cache_index = array_flip($cache_index);
foreach ($h_index as $idx => $uid)
unset($cache_index[$uid]);
if (empty($cache_index))
return 1;
}
return -2;
} else {
// get UID of message with highest index
$uid = iil_C_ID2UID($this->conn, $mailbox, $msg_count);
$cache_uid = array_pop($cache_index);
// uids of highest message matches -> cache seems OK
if ($cache_uid == $uid)
return 1;
}
// cache is dirty
return -1;
}
// if cache count differs less than 10% report as dirty
else if (abs($msg_count - $cache_count) < $msg_count/10)
return -1;
else
return -2;
}
/**
* @access private
*/
private function get_message_cache($key, $from, $to, $sort_field, $sort_order)
{
$cache_key = "$key:$from:$to:$sort_field:$sort_order";
$config = rcmail::get_instance()->config;
// use idx sort as default sorting
if (!$sort_field || !in_array($sort_field, $this->db_header_fields)) {
$sort_field = 'idx';
}
if ($this->caching_enabled && !isset($this->cache[$cache_key]))
{
$this->cache[$cache_key] = array();
$sql_result = $this->db->limitquery(
"SELECT idx, uid, headers
FROM ".get_table_name('messages')."
WHERE user_id=?
AND cache_key=?
ORDER BY ".$this->db->quoteIdentifier($sort_field)." ".strtoupper($sort_order),
$from,
$to-$from,
$_SESSION['user_id'],
$key);
while ($sql_arr = $this->db->fetch_assoc($sql_result))
{
$uid = $sql_arr['uid'];
$this->cache[$cache_key][$uid] = $this->db->decode(unserialize($sql_arr['headers']));
// featch headers if unserialize failed
if (empty($this->cache[$cache_key][$uid]))
$this->cache[$cache_key][$uid] = iil_C_FetchHeader($this->conn, preg_replace('/.msg$/', '', $key), $uid, true, $this->fetch_add_headers);
}
}
return $this->cache[$cache_key];
}
/**
* @access private
*/
private function &get_cached_message($key, $uid)
{
$internal_key = 'message';
if ($this->caching_enabled && !isset($this->icache[$internal_key][$uid]))
{
$sql_result = $this->db->query(
"SELECT idx, headers, structure
FROM ".get_table_name('messages')."
WHERE user_id=?
AND cache_key=?
AND uid=?",
$_SESSION['user_id'],
$key,
$uid);
if ($sql_arr = $this->db->fetch_assoc($sql_result))
{
$this->uid_id_map[preg_replace('/\.msg$/', '', $key)][$uid] = $sql_arr['idx'];
$this->icache[$internal_key][$uid] = $this->db->decode(unserialize($sql_arr['headers']));
if (is_object($this->icache[$internal_key][$uid]) && !empty($sql_arr['structure']))
$this->icache[$internal_key][$uid]->structure = $this->db->decode(unserialize($sql_arr['structure']));
}
}
return $this->icache[$internal_key][$uid];
}
/**
* @access private
*/
private function get_message_cache_index($key, $force=false, $sort_field='idx', $sort_order='ASC')
{
static $sa_message_index = array();
// empty key -> empty array
if (!$this->caching_enabled || empty($key))
return array();
if (!empty($sa_message_index[$key]) && !$force)
return $sa_message_index[$key];
// use idx sort as default
if (!$sort_field || !in_array($sort_field, $this->db_header_fields))
$sort_field = 'idx';
$sa_message_index[$key] = array();
$sql_result = $this->db->query(
"SELECT idx, uid
FROM ".get_table_name('messages')."
WHERE user_id=?
AND cache_key=?
ORDER BY ".$this->db->quote_identifier($sort_field)." ".$sort_order,
$_SESSION['user_id'],
$key);
while ($sql_arr = $this->db->fetch_assoc($sql_result))
$sa_message_index[$key][$sql_arr['idx']] = $sql_arr['uid'];
return $sa_message_index[$key];
}
/**
* @access private
*/
private function add_message_cache($key, $index, $headers, $struct=null, $force=false)
{
if (empty($key) || !is_object($headers) || empty($headers->uid))
return;
// add to internal (fast) cache
$this->icache['message'][$headers->uid] = clone $headers;
$this->icache['message'][$headers->uid]->structure = $struct;
// no further caching
if (!$this->caching_enabled)
return;
// check for an existing record (probly headers are cached but structure not)
if (!$force) {
$sql_result = $this->db->query(
"SELECT message_id
FROM ".get_table_name('messages')."
WHERE user_id=?
AND cache_key=?
AND uid=?",
$_SESSION['user_id'],
$key,
$headers->uid);
if ($sql_arr = $this->db->fetch_assoc($sql_result))
$message_id = $sql_arr['message_id'];
}
// update cache record
if ($message_id)
{
$this->db->query(
"UPDATE ".get_table_name('messages')."
SET idx=?, headers=?, structure=?
WHERE message_id=?",
$index,
serialize($this->db->encode(clone $headers)),
is_object($struct) ? serialize($this->db->encode(clone $struct)) : NULL,
$message_id
);
}
else // insert new record
{
$this->db->query(
"INSERT INTO ".get_table_name('messages')."
(user_id, del, cache_key, created, idx, uid, subject, ".$this->db->quoteIdentifier('from').", ".$this->db->quoteIdentifier('to').", cc, date, size, headers, structure)
VALUES (?, 0, ?, ".$this->db->now().", ?, ?, ?, ?, ?, ?, ".$this->db->fromunixtime($headers->timestamp).", ?, ?, ?)",
$_SESSION['user_id'],
$key,
$index,
$headers->uid,
(string)mb_substr($this->db->encode($this->decode_header($headers->subject, true)), 0, 128),
(string)mb_substr($this->db->encode($this->decode_header($headers->from, true)), 0, 128),
(string)mb_substr($this->db->encode($this->decode_header($headers->to, true)), 0, 128),
(string)mb_substr($this->db->encode($this->decode_header($headers->cc, true)), 0, 128),
(int)$headers->size,
serialize($this->db->encode(clone $headers)),
is_object($struct) ? serialize($this->db->encode(clone $struct)) : NULL
);
}
}
/**
* @access private
*/
private function remove_message_cache($key, $ids, $idx=false)
{
if (!$this->caching_enabled)
return;
$this->db->query(
"DELETE FROM ".get_table_name('messages')."
WHERE user_id=?
AND cache_key=?
AND ".($idx ? "idx" : "uid")." IN (".$this->db->array2list($ids, 'integer').")",
$_SESSION['user_id'],
$key);
}
/**
* @access private
*/
private function clear_message_cache($key, $start_index=1)
{
if (!$this->caching_enabled)
return;
$this->db->query(
"DELETE FROM ".get_table_name('messages')."
WHERE user_id=?
AND cache_key=?
AND idx>=?",
$_SESSION['user_id'], $key, $start_index);
}
/**
* @access private
*/
private function get_message_cache_index_min($key, $uids=NULL)
{
if (!$this->caching_enabled)
return;
$sql_result = $this->db->query(
"SELECT MIN(idx) AS minidx
FROM ".get_table_name('messages')."
WHERE user_id=?
AND cache_key=?"
.(!empty($uids) ? " AND uid IN (".$this->db->array2list($uids, 'integer').")" : ''),
$_SESSION['user_id'],
$key);
if ($sql_arr = $this->db->fetch_assoc($sql_result))
return $sql_arr['minidx'];
else
return 0;
}
/* --------------------------------
* encoding/decoding methods
* --------------------------------*/
/**
* Split an address list into a structured array list
*
* @param string Input string
* @param int List only this number of addresses
* @param boolean Decode address strings
* @return array Indexed list of addresses
*/
function decode_address_list($input, $max=null, $decode=true)
{
$a = $this->_parse_address_list($input, $decode);
$out = array();
// Special chars as defined by RFC 822 need to in quoted string (or escaped).
$special_chars = '[\(\)\<\>\\\.\[\]@,;:"]';
if (!is_array($a))
return $out;
$c = count($a);
$j = 0;
foreach ($a as $val)
{
$j++;
$address = trim($val['address']);
$name = trim($val['name']);
if (preg_match('/^[\'"]/', $name) && preg_match('/[\'"]$/', $name))
$name = preg_replace(array('/^[\'"]/', '/[\'"]$/'), '', $name);
if ($name && $address && $name != $address)
$string = sprintf('%s <%s>', preg_match("/$special_chars/", $name) ? '"'.addcslashes($name, '"').'"' : $name, $address);
else if ($address)
$string = $address;
else if ($name)
$string = $name;
$out[$j] = array('name' => $name,
'mailto' => $address,
'string' => $string);
if ($max && $j==$max)
break;
}
return $out;
}
/**
* Decode a Microsoft Outlook TNEF part (winmail.dat)
*
* @param object rcube_message_part Message part to decode
* @param string UID of the message
* @return array List of rcube_message_parts extracted from windmail.dat
*/
function tnef_decode(&$part, $uid)
{
if (!isset($part->body))
$part->body = $this->get_message_part($uid, $part->mime_id, $part);
$pid = 0;
$tnef_parts = array();
$tnef_arr = tnef_decode($part->body);
foreach ($tnef_arr as $winatt) {
$tpart = new rcube_message_part;
$tpart->filename = $winatt["name"];
$tpart->encoding = 'stream';
$tpart->ctype_primary = $winatt["type0"];
$tpart->ctype_secondary = $winatt["type1"];
$tpart->mimetype = strtolower($winatt["type0"] . "/" . $winatt["type1"]);
$tpart->mime_id = "winmail." . $part->mime_id . ".$pid";
$tpart->size = $winatt["size"];
$tpart->body = $winatt['stream'];
$tnef_parts[] = $tpart;
$pid++;
}
return $tnef_parts;
}
/**
* Decode a message header value
*
* @param string Header value
* @param boolean Remove quotes if necessary
* @return string Decoded string
*/
function decode_header($input, $remove_quotes=false)
{
$str = rcube_imap::decode_mime_string((string)$input, $this->default_charset);
if ($str{0}=='"' && $remove_quotes)
$str = str_replace('"', '', $str);
return $str;
}
/**
* Decode a mime-encoded string to internal charset
*
* @param string $input Header value
* @param string $fallback Fallback charset if none specified
*
* @return string Decoded string
* @static
*/
public static function decode_mime_string($input, $fallback=null)
{
// Initialize variable
$out = '';
// Iterate instead of recursing, this way if there are too many values we don't have stack overflows
// rfc: all line breaks or other characters not found
// in the Base64 Alphabet must be ignored by decoding software
// delete all blanks between MIME-lines, differently we can
// receive unnecessary blanks and broken utf-8 symbols
$input = preg_replace("/\?=\s+=\?/", '?==?', $input);
// Check if there is stuff to decode
if (strpos($input, '=?') !== false) {
// Loop through the string to decode all occurences of =? ?= into the variable $out
while(($pos = strpos($input, '=?')) !== false) {
// Append everything that is before the text to be decoded
$out .= substr($input, 0, $pos);
// Get the location of the text to decode
$end_cs_pos = strpos($input, "?", $pos+2);
$end_en_pos = strpos($input, "?", $end_cs_pos+1);
$end_pos = strpos($input, "?=", $end_en_pos+1);
// Extract the encoded string
$encstr = substr($input, $pos+2, ($end_pos-$pos-2));
// Extract the remaining string
$input = substr($input, $end_pos+2);
// Decode the string fragement
$out .= rcube_imap::_decode_mime_string_part($encstr);
}
// Deocde the rest (if any)
if (strlen($input) != 0)
$out .= rcube_imap::decode_mime_string($input, $fallback);
// return the results
return $out;
}
// no encoding information, use fallback
return rcube_charset_convert($input,
!empty($fallback) ? $fallback : rcmail::get_instance()->config->get('default_charset', 'ISO-8859-1'));
}
/**
* Decode a part of a mime-encoded string
*
* @access private
*/
private function _decode_mime_string_part($str)
{
$a = explode('?', $str);
$count = count($a);
// should be in format "charset?encoding?base64_string"
if ($count >= 3)
{
for ($i=2; $i<$count; $i++)
$rest.=$a[$i];
if (($a[1]=="B")||($a[1]=="b"))
$rest = base64_decode($rest);
else if (($a[1]=="Q")||($a[1]=="q"))
{
$rest = str_replace("_", " ", $rest);
$rest = quoted_printable_decode($rest);
}
return rcube_charset_convert($rest, $a[0]);
}
else
return $str; // we dont' know what to do with this
}
/**
* Decode a mime part
*
* @param string Input string
* @param string Part encoding
* @return string Decoded string
*/
function mime_decode($input, $encoding='7bit')
{
switch (strtolower($encoding))
{
case 'quoted-printable':
return quoted_printable_decode($input);
break;
case 'base64':
return base64_decode($input);
break;
case 'x-uuencode':
case 'x-uue':
case 'uue':
case 'uuencode':
return convert_uudecode($input);
break;
case '7bit':
default:
return $input;
}
}
/**
* Convert body charset to RCMAIL_CHARSET according to the ctype_parameters
*
* @param string Part body to decode
* @param string Charset to convert from
* @return string Content converted to internal charset
*/
function charset_decode($body, $ctype_param)
{
if (is_array($ctype_param) && !empty($ctype_param['charset']))
return rcube_charset_convert($body, $ctype_param['charset']);
// defaults to what is specified in the class header
return rcube_charset_convert($body, $this->default_charset);
}
/**
* Translate UID to message ID
*
* @param int Message UID
* @param string Mailbox name
* @return int Message ID
*/
function get_id($uid, $mbox_name=NULL)
{
$mailbox = $mbox_name ? $this->mod_mailbox($mbox_name) : $this->mailbox;
return $this->_uid2id($uid, $mailbox);
}
/**
* Translate message number to UID
*
* @param int Message ID
* @param string Mailbox name
* @return int Message UID
*/
function get_uid($id,$mbox_name=NULL)
{
$mailbox = $mbox_name ? $this->mod_mailbox($mbox_name) : $this->mailbox;
return $this->_id2uid($id, $mailbox);
}
/**
* Modify folder name for input/output according to root dir and namespace
*
* @param string Folder name
* @param string Mode
* @return string Folder name
*/
function mod_mailbox($mbox_name, $mode='in')
{
if ($mbox_name == 'INBOX')
return $mbox_name;
if (!empty($this->root_dir)) {
if ($mode=='in')
$mbox_name = $this->root_dir.$this->delimiter.$mbox_name;
else if (!empty($mbox_name)) // $mode=='out'
$mbox_name = substr($mbox_name, strlen($this->root_dir)+1);
}
return $mbox_name;
}
/* --------------------------------
* private methods
* --------------------------------*/
/**
* Validate the given input and save to local properties
* @access private
*/
private function _set_sort_order($sort_field, $sort_order)
{
if ($sort_field != null)
$this->sort_field = asciiwords($sort_field);
if ($sort_order != null)
$this->sort_order = strtoupper($sort_order) == 'DESC' ? 'DESC' : 'ASC';
}
/**
* Sort mailboxes first by default folders and then in alphabethical order
* @access private
*/
private function _sort_mailbox_list($a_folders)
{
$a_out = $a_defaults = $folders = array();
$delimiter = $this->get_hierarchy_delimiter();
// find default folders and skip folders starting with '.'
foreach ($a_folders as $i => $folder)
{
if ($folder{0}=='.')
continue;
if (($p = array_search($folder, $this->default_folders)) !== false && !$a_defaults[$p])
$a_defaults[$p] = $folder;
else
$folders[$folder] = mb_strtolower(rcube_charset_convert($folder, 'UTF7-IMAP'));
}
// sort folders and place defaults on the top
asort($folders, SORT_LOCALE_STRING);
ksort($a_defaults);
$folders = array_merge($a_defaults, array_keys($folders));
// finally we must rebuild the list to move
// subfolders of default folders to their place...
// ...also do this for the rest of folders because
// asort() is not properly sorting case sensitive names
while (list($key, $folder) = each($folders)) {
// set the type of folder name variable (#1485527)
$a_out[] = (string) $folder;
unset($folders[$key]);
$this->_rsort($folder, $delimiter, $folders, $a_out);
}
return $a_out;
}
/**
* @access private
*/
private function _rsort($folder, $delimiter, &$list, &$out)
{
while (list($key, $name) = each($list)) {
if (strpos($name, $folder.$delimiter) === 0) {
// set the type of folder name variable (#1485527)
$out[] = (string) $name;
unset($list[$key]);
$this->_rsort($name, $delimiter, $list, $out);
}
}
reset($list);
}
/**
* @access private
*/
private function _uid2id($uid, $mbox_name=NULL)
{
if (!$mbox_name)
$mbox_name = $this->mailbox;
if (!isset($this->uid_id_map[$mbox_name][$uid]))
$this->uid_id_map[$mbox_name][$uid] = iil_C_UID2ID($this->conn, $mbox_name, $uid);
return $this->uid_id_map[$mbox_name][$uid];
}
/**
* @access private
*/
private function _id2uid($id, $mbox_name=NULL)
{
if (!$mbox_name)
$mbox_name = $this->mailbox;
if ($uid = array_search($id, (array)$this->uid_id_map[$mbox_name]))
return $uid;
$uid = iil_C_ID2UID($this->conn, $mbox_name, $id);
$this->uid_id_map[$mbox_name][$uid] = $id;
return $uid;
}
/**
* Subscribe/unsubscribe a list of mailboxes and update local cache
* @access private
*/
private function _change_subscription($a_mboxes, $mode)
{
$updated = false;
if (is_array($a_mboxes))
foreach ($a_mboxes as $i => $mbox_name)
{
$mailbox = $this->mod_mailbox($mbox_name);
$a_mboxes[$i] = $mailbox;
if ($mode=='subscribe')
$updated = iil_C_Subscribe($this->conn, $mailbox);
else if ($mode=='unsubscribe')
$updated = iil_C_UnSubscribe($this->conn, $mailbox);
}
// get cached mailbox list
if ($updated)
{
$a_mailbox_cache = $this->get_cache('mailboxes');
if (!is_array($a_mailbox_cache))
return $updated;
// modify cached list
if ($mode=='subscribe')
$a_mailbox_cache = array_merge($a_mailbox_cache, $a_mboxes);
else if ($mode=='unsubscribe')
$a_mailbox_cache = array_diff($a_mailbox_cache, $a_mboxes);
// write mailboxlist to cache
$this->update_cache('mailboxes', $this->_sort_mailbox_list($a_mailbox_cache));
}
return $updated;
}
/**
* Increde/decrese messagecount for a specific mailbox
* @access private
*/
private function _set_messagecount($mbox_name, $mode, $increment)
{
$a_mailbox_cache = false;
$mailbox = $mbox_name ? $mbox_name : $this->mailbox;
$mode = strtoupper($mode);
$a_mailbox_cache = $this->get_cache('messagecount');
if (!is_array($a_mailbox_cache[$mailbox]) || !isset($a_mailbox_cache[$mailbox][$mode]) || !is_numeric($increment))
return false;
// add incremental value to messagecount
$a_mailbox_cache[$mailbox][$mode] += $increment;
// there's something wrong, delete from cache
if ($a_mailbox_cache[$mailbox][$mode] < 0)
unset($a_mailbox_cache[$mailbox][$mode]);
// write back to cache
$this->update_cache('messagecount', $a_mailbox_cache);
return true;
}
/**
* Remove messagecount of a specific mailbox from cache
* @access private
*/
private function _clear_messagecount($mbox_name='')
{
$a_mailbox_cache = false;
$mailbox = $mbox_name ? $mbox_name : $this->mailbox;
$a_mailbox_cache = $this->get_cache('messagecount');
if (is_array($a_mailbox_cache[$mailbox]))
{
unset($a_mailbox_cache[$mailbox]);
$this->update_cache('messagecount', $a_mailbox_cache);
}
}
/**
* Split RFC822 header string into an associative array
* @access private
*/
private function _parse_headers($headers)
{
$a_headers = array();
$headers = preg_replace('/\r?\n(\t| )+/', ' ', $headers);
$lines = explode("\n", $headers);
$c = count($lines);
for ($i=0; $i<$c; $i++)
{
if ($p = strpos($lines[$i], ': '))
{
$field = strtolower(substr($lines[$i], 0, $p));
$value = trim(substr($lines[$i], $p+1));
if (!empty($value))
$a_headers[$field] = $value;
}
}
return $a_headers;
}
/**
* @access private
*/
private function _parse_address_list($str, $decode=true)
{
// remove any newlines and carriage returns before
$a = rcube_explode_quoted_string('[,;]', preg_replace( "/[\r\n]/", " ", $str));
$result = array();
foreach ($a as $key => $val)
{
$val = preg_replace("/([\"\w])</", "$1 <", $val);
$sub_a = rcube_explode_quoted_string(' ', $decode ? $this->decode_header($val) : $val);
$result[$key]['name'] = '';
foreach ($sub_a as $k => $v)
{
// use angle brackets in regexp to not handle names with @ sign
if (preg_match('/^<\S+@\S+>$/', $v))
$result[$key]['address'] = trim($v, '<>');
else
$result[$key]['name'] .= (empty($result[$key]['name'])?'':' ').str_replace("\"",'',stripslashes($v));
}
if (empty($result[$key]['name']))
$result[$key]['name'] = $result[$key]['address'];
elseif (empty($result[$key]['address']))
$result[$key]['address'] = $result[$key]['name'];
}
return $result;
}
} // end class rcube_imap
/**
* Class representing a message part
*
* @package Mail
*/
class rcube_message_part
{
var $mime_id = '';
var $ctype_primary = 'text';
var $ctype_secondary = 'plain';
var $mimetype = 'text/plain';
var $disposition = '';
var $filename = '';
var $encoding = '8bit';
var $charset = '';
var $size = 0;
var $headers = array();
var $d_parameters = array();
var $ctype_parameters = array();
function __clone()
{
if (isset($this->parts))
foreach ($this->parts as $idx => $part)
if (is_object($part))
$this->parts[$idx] = clone $part;
}
}
/**
* Class for sorting an array of iilBasicHeader objects in a predetermined order.
*
* @package Mail
* @author Eric Stadtherr
*/
class rcube_header_sorter
{
var $sequence_numbers = array();
/**
* Set the predetermined sort order.
*
* @param array Numerically indexed array of IMAP message sequence numbers
*/
function set_sequence_numbers($seqnums)
{
$this->sequence_numbers = array_flip($seqnums);
}
/**
* Sort the array of header objects
*
* @param array Array of iilBasicHeader objects indexed by UID
*/
function sort_headers(&$headers)
{
/*
* uksort would work if the keys were the sequence number, but unfortunately
* the keys are the UIDs. We'll use uasort instead and dereference the value
* to get the sequence number (in the "id" field).
*
* uksort($headers, array($this, "compare_seqnums"));
*/
uasort($headers, array($this, "compare_seqnums"));
}
/**
* Sort method called by uasort()
*/
function compare_seqnums($a, $b)
{
// First get the sequence number from the header object (the 'id' field).
$seqa = $a->id;
$seqb = $b->id;
// then find each sequence number in my ordered list
$posa = isset($this->sequence_numbers[$seqa]) ? intval($this->sequence_numbers[$seqa]) : -1;
$posb = isset($this->sequence_numbers[$seqb]) ? intval($this->sequence_numbers[$seqb]) : -1;
// return the relative position as the comparison value
return $posa - $posb;
}
}

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