diff --git a/plugins/libkolab/lib/kolab_storage_folder.php b/plugins/libkolab/lib/kolab_storage_folder.php index eb28ed61..45f9bbcd 100644 --- a/plugins/libkolab/lib/kolab_storage_folder.php +++ b/plugins/libkolab/lib/kolab_storage_folder.php @@ -1,1142 +1,1142 @@ * @author Aleksander Machniak * * Copyright (C) 2012-2013, Kolab Systems AG * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see . */ class kolab_storage_folder extends kolab_storage_folder_api { /** * The kolab_storage_cache instance for caching operations * @var object */ public $cache; /** * Indicate validity status * @var boolean */ public $valid = false; protected $error = 0; protected $resource_uri; /** * Default constructor * * @param string The folder name/path * @param string Expected folder type */ function __construct($name, $type = null, $type_annotation = null) { parent::__construct($name); $this->set_folder($name, $type, $type_annotation); } /** * Set the IMAP folder this instance connects to * * @param string The folder name/path * @param string Expected folder type * @param string Optional folder type if known */ public function set_folder($name, $type = null, $type_annotation = null) { $this->name = $name; if (empty($type_annotation)) { $type_annotation = $this->get_type(); } $oldtype = $this->type; list($this->type, $suffix) = explode('.', $type_annotation); $this->default = $suffix == 'default'; $this->subtype = $this->default ? '' : $suffix; $this->id = kolab_storage::folder_id($name); $this->valid = !empty($this->type) && $this->type != 'mail' && (!$type || $this->type == $type); if (!$this->valid) { $this->error = $this->imap->get_error_code() < 0 ? kolab_storage::ERROR_IMAP_CONN : kolab_storage::ERROR_INVALID_FOLDER; } // reset cached object properties $this->owner = $this->namespace = $this->resource_uri = $this->info = $this->idata = null; // get a new cache instance if folder type changed if (!$this->cache || $this->type != $oldtype) $this->cache = kolab_storage_cache::factory($this); else $this->cache->set_folder($this); $this->imap->set_folder($this->name); } /** * Returns code of last error * * @return int Error code */ public function get_error() { return $this->error ?: $this->cache->get_error(); } /** * Check IMAP connection error state */ public function check_error() { if (($err_code = $this->imap->get_error_code()) < 0) { $this->error = kolab_storage::ERROR_IMAP_CONN; if (($res_code = $this->imap->get_response_code()) !== 0 && in_array($res_code, array(rcube_storage::NOPERM, rcube_storage::READONLY))) { $this->error = kolab_storage::ERROR_NO_PERMISSION; } } return $this->error; } /** * Compose a unique resource URI for this IMAP folder */ public function get_resource_uri() { if (!empty($this->resource_uri)) { return $this->resource_uri; } // strip namespace prefix from folder name $ns = $this->get_namespace(); $nsdata = $this->imap->get_namespace($ns); if (is_array($nsdata[0]) && strlen($nsdata[0][0]) && strpos($this->name, $nsdata[0][0]) === 0) { $subpath = substr($this->name, strlen($nsdata[0][0])); if ($ns == 'other') { list($user, $suffix) = explode($nsdata[0][1], $subpath, 2); $subpath = $suffix; } } else { $subpath = $this->name; } // compose fully qualified ressource uri for this instance $this->resource_uri = 'imap://' . urlencode($this->get_owner(true)) . '@' . $this->imap->options['host'] . '/' . $subpath; return $this->resource_uri; } /** * Helper method to extract folder UID metadata * * @return string Folder's UID */ public function get_uid() { // UID is defined in folder METADATA $metakeys = array(kolab_storage::UID_KEY_SHARED, kolab_storage::UID_KEY_CYRUS); $metadata = $this->get_metadata(); if ($metadata !== null) { foreach ($metakeys as $key) { if ($uid = $metadata[$key]) { return $uid; } } // generate a folder UID and set it to IMAP $uid = rtrim(chunk_split(md5($this->name . $this->get_owner() . uniqid('-', true)), 12, '-'), '-'); if ($this->set_uid($uid)) { return $uid; } } $this->check_error(); // create hash from folder name if we can't write the UID metadata return md5($this->name . $this->get_owner()); } /** * Helper method to set an UID value to the given IMAP folder instance * * @param string Folder's UID * @return boolean True on succes, False on failure */ public function set_uid($uid) { $success = $this->set_metadata(array(kolab_storage::UID_KEY_SHARED => $uid)); $this->check_error(); return $success; } /** * Compose a folder Etag identifier */ public function get_ctag() { $fdata = $this->get_imap_data(); $this->check_error(); return sprintf('%d-%d-%d', $fdata['UIDVALIDITY'], $fdata['HIGHESTMODSEQ'], $fdata['UIDNEXT']); } /** * Check activation status of this folder * * @return boolean True if enabled, false if not */ public function is_active() { return kolab_storage::folder_is_active($this->name); } /** * Change activation status of this folder * * @param boolean The desired subscription status: true = active, false = not active * * @return True on success, false on error */ public function activate($active) { return $active ? kolab_storage::folder_activate($this->name) : kolab_storage::folder_deactivate($this->name); } /** * Check subscription status of this folder * * @return boolean True if subscribed, false if not */ public function is_subscribed() { return kolab_storage::folder_is_subscribed($this->name); } /** * Change subscription status of this folder * * @param boolean The desired subscription status: true = subscribed, false = not subscribed * * @return True on success, false on error */ public function subscribe($subscribed) { return $subscribed ? kolab_storage::folder_subscribe($this->name) : kolab_storage::folder_unsubscribe($this->name); } /** * Get number of objects stored in this folder * * @param mixed Pseudo-SQL query as list of filter parameter triplets * or string with object type (e.g. contact, event, todo, journal, note, configuration) * * @return integer The number of objects of the given type * @see self::select() */ public function count($query = null) { if (!$this->valid) { return 0; } // synchronize cache first $this->cache->synchronize(); return $this->cache->count($this->_prepare_query($query)); } /** * List Kolab objects matching the given query * * @param mixed Pseudo-SQL query as list of filter parameter triplets * or string with object type (e.g. contact, event, todo, journal, note, configuration) * * @return array List of Kolab data objects (each represented as hash array) * @deprecated Use select() */ public function get_objects($query = array()) { return $this->select($query); } /** * Select Kolab objects matching the given query * * @param mixed Pseudo-SQL query as list of filter parameter triplets * or string with object type (e.g. contact, event, todo, journal, note, configuration) * * @return array List of Kolab data objects (each represented as hash array) */ public function select($query = array()) { if (!$this->valid) { return array(); } // synchronize caches $this->cache->synchronize(); // fetch objects from cache return $this->cache->select($this->_prepare_query($query)); } /** * Getter for object UIDs only * * @param array Pseudo-SQL query as list of filter parameter triplets * @return array List of Kolab object UIDs */ public function get_uids($query = array()) { if (!$this->valid) { return array(); } // synchronize caches $this->cache->synchronize(); // fetch UIDs from cache return $this->cache->select($this->_prepare_query($query), true); } /** * Setter for ORDER BY and LIMIT parameters for cache queries * * @param array List of columns to order by * @param integer Limit result set to this length * @param integer Offset row */ public function set_order_and_limit($sortcols, $length = null, $offset = 0) { $this->cache->set_order_by($sortcols); if ($length !== null) { $this->cache->set_limit($length, $offset); } } /** * Helper method to sanitize query arguments */ private function _prepare_query($query) { // string equals type query // FIXME: should not be called this way! if (is_string($query)) { return $this->cache->has_type_col() && !empty($query) ? array(array('type','=',$query)) : array(); } foreach ((array)$query as $i => $param) { if ($param[0] == 'type' && !$this->cache->has_type_col()) { unset($query[$i]); } else if (($param[0] == 'dtstart' || $param[0] == 'dtend' || $param[0] == 'changed')) { if (is_object($param[2]) && is_a($param[2], 'DateTime')) $param[2] = $param[2]->format('U'); if (is_numeric($param[2])) $query[$i][2] = date('Y-m-d H:i:s', $param[2]); } } return $query; } /** * Getter for a single Kolab object identified by its UID * * @param string $uid Object UID * * @return array The Kolab object represented as hash array */ public function get_object($uid) { if (!$this->valid || !$uid) { return false; } // synchronize caches $this->cache->synchronize(); return $this->cache->get_by_uid($uid); } /** * Fetch a Kolab object attachment which is stored in a separate part * of the mail MIME message that represents the Kolab record. * * @param string Object's UID * @param string The attachment's mime number * @param string IMAP folder where message is stored; * If set, that also implies that the given UID is an IMAP UID * @param bool True to print the part content * @param resource File pointer to save the message part * @param boolean Disables charset conversion * * @return mixed The attachment content as binary string */ public function get_attachment($uid, $part, $mailbox = null, $print = false, $fp = null, $skip_charset_conv = false) { if ($this->valid && ($msguid = ($mailbox ? $uid : $this->cache->uid2msguid($uid)))) { $this->imap->set_folder($mailbox ? $mailbox : $this->name); if (substr($part, 0, 2) == 'i:') { // attachment data is stored in XML if ($object = $this->cache->get($msguid)) { // load data from XML (attachment content is not stored in cache) if ($object['_formatobj'] && isset($object['_size'])) { $object['_attachments'] = array(); $object['_formatobj']->get_attachments($object); } foreach ($object['_attachments'] as $attach) { if ($attach['id'] == $part) { if ($print) echo $attach['content']; else if ($fp) fwrite($fp, $attach['content']); else return $attach['content']; return true; } } } } else { // return message part from IMAP directly return $this->imap->get_message_part($msguid, $part, null, $print, $fp, $skip_charset_conv); } } return null; } /** * Fetch the mime message from the storage server and extract * the Kolab groupware object from it * * @param string The IMAP message UID to fetch * @param string The object type expected (use wildcard '*' to accept all types) * @param string The folder name where the message is stored * * @return mixed Hash array representing the Kolab object, a kolab_format instance or false if not found */ public function read_object($msguid, $type = null, $folder = null) { if (!$this->valid) { return false; } if (!$type) $type = $this->type; if (!$folder) $folder = $this->name; $this->imap->set_folder($folder); $this->cache->imap_mode(true); $message = new rcube_message($msguid); $this->cache->imap_mode(false); // Message doesn't exist? if (empty($message->headers)) { return false; } // extract the X-Kolab-Type header from the XML attachment part if missing if (empty($message->headers->others['x-kolab-type'])) { foreach ((array)$message->attachments as $part) { if (strpos($part->mimetype, kolab_format::KTYPE_PREFIX) === 0) { $message->headers->others['x-kolab-type'] = $part->mimetype; break; } } } // fix buggy messages stating the X-Kolab-Type header twice else if (is_array($message->headers->others['x-kolab-type'])) { $message->headers->others['x-kolab-type'] = reset($message->headers->others['x-kolab-type']); } // no object type header found: abort if (empty($message->headers->others['x-kolab-type'])) { rcube::raise_error(array( 'code' => 600, 'type' => 'php', 'file' => __FILE__, 'line' => __LINE__, 'message' => "No X-Kolab-Type information found in message $msguid ($this->name).", ), true); return false; } $object_type = kolab_format::mime2object_type($message->headers->others['x-kolab-type']); $content_type = kolab_format::KTYPE_PREFIX . $object_type; // check object type header and abort on mismatch - if ($type != '*' && strpos($object_type, $type) !== 0) { + if ($type != '*' && strpos($object_type, $type) !== 0 && !($object_type == 'distribution-list' && $type == 'contact')) { return false; } $attachments = array(); // get XML part foreach ((array)$message->attachments as $part) { if (!$xml && ($part->mimetype == $content_type || preg_match('!application/([a-z.]+\+)?xml!i', $part->mimetype))) { $xml = $message->get_part_body($part->mime_id, true); } else if ($part->filename || $part->content_id) { $key = $part->content_id ? trim($part->content_id, '<>') : $part->filename; $size = null; // Use Content-Disposition 'size' as for the Kolab Format spec. if (isset($part->d_parameters['size'])) { $size = $part->d_parameters['size']; } // we can trust part size only if it's not encoded else if ($part->encoding == 'binary' || $part->encoding == '7bit' || $part->encoding == '8bit') { $size = $part->size; } $attachments[$key] = array( 'id' => $part->mime_id, 'name' => $part->filename, 'mimetype' => $part->mimetype, 'size' => $size, ); } } if (!$xml) { rcube::raise_error(array( 'code' => 600, 'type' => 'php', 'file' => __FILE__, 'line' => __LINE__, 'message' => "Could not find Kolab data part in message $msguid ($this->name).", ), true); return false; } // check kolab format version $format_version = $message->headers->others['x-kolab-mime-version']; if (empty($format_version)) { list($xmltype, $subtype) = explode('.', $object_type); $xmlhead = substr($xml, 0, 512); // detect old Kolab 2.0 format if (strpos($xmlhead, '<' . $xmltype) !== false && strpos($xmlhead, 'xmlns=') === false) $format_version = '2.0'; else $format_version = '3.0'; // assume 3.0 } // get Kolab format handler for the given type $format = kolab_format::factory($object_type, $format_version); if (is_a($format, 'PEAR_Error')) return false; // load Kolab object from XML part $format->load($xml); if ($format->is_valid()) { $object = $format->to_array(array('_attachments' => $attachments)); $object['_type'] = $object_type; $object['_msguid'] = $msguid; $object['_mailbox'] = $this->name; $object['_formatobj'] = $format; return $object; } else { // try to extract object UID from XML block if (preg_match('!(.+)!Uims', $xml, $m)) $msgadd = " UID = " . trim(strip_tags($m[1])); rcube::raise_error(array( 'code' => 600, 'type' => 'php', 'file' => __FILE__, 'line' => __LINE__, 'message' => "Could not parse Kolab object data in message $msguid ($this->name)." . $msgadd, ), true); } return false; } /** * Save an object in this folder. * * @param array $object The array that holds the data of the object. * @param string $type The type of the kolab object. * @param string $uid The UID of the old object if it existed before * * @return mixed False on error or IMAP message UID on success */ public function save(&$object, $type = null, $uid = null) { if (!$this->valid) { return false; } if (!$type) $type = $this->type; // copy attachments from old message $copyfrom = $object['_copyfrom'] ?: $object['_msguid']; if (!empty($copyfrom) && ($old = $this->cache->get($copyfrom, $type, $object['_mailbox']))) { foreach ((array)$old['_attachments'] as $key => $att) { if (!isset($object['_attachments'][$key])) { $object['_attachments'][$key] = $old['_attachments'][$key]; } // unset deleted attachment entries if ($object['_attachments'][$key] == false) { unset($object['_attachments'][$key]); } // load photo.attachment from old Kolab2 format to be directly embedded in xcard block else if ($type == 'contact' && ($key == 'photo.attachment' || $key == 'kolab-picture.png') && $att['id']) { if (!isset($object['photo'])) $object['photo'] = $this->get_attachment($copyfrom, $att['id'], $object['_mailbox']); unset($object['_attachments'][$key]); } } } // save contact photo to attachment for Kolab2 format if (kolab_storage::$version == '2.0' && $object['photo']) { $attkey = 'kolab-picture.png'; // this file name is hard-coded in libkolab/kolabformatV2/contact.cpp $object['_attachments'][$attkey] = array( 'mimetype'=> rcube_mime::image_content_type($object['photo']), 'content' => preg_match('![^a-z0-9/=+-]!i', $object['photo']) ? $object['photo'] : base64_decode($object['photo']), ); } // process attachments if (is_array($object['_attachments'])) { $numatt = count($object['_attachments']); foreach ($object['_attachments'] as $key => $attachment) { // FIXME: kolab_storage and Roundcube attachment hooks use different fields! if (empty($attachment['content']) && !empty($attachment['data'])) { $attachment['content'] = $attachment['data']; unset($attachment['data'], $object['_attachments'][$key]['data']); } // make sure size is set, so object saved in cache contains this info if (!isset($attachment['size'])) { if (!empty($attachment['content'])) { if (is_resource($attachment['content'])) { // this need to be a seekable resource, otherwise // fstat() failes and we're unable to determine size // here nor in rcube_imap_generic before IMAP APPEND $stat = fstat($attachment['content']); $attachment['size'] = $stat ? $stat['size'] : 0; } else { $attachment['size'] = strlen($attachment['content']); } } else if (!empty($attachment['path'])) { $attachment['size'] = filesize($attachment['path']); } $object['_attachments'][$key] = $attachment; } // generate unique keys (used as content-id) for attachments if (is_numeric($key) && $key < $numatt) { // derrive content-id from attachment file name $ext = preg_match('/(\.[a-z0-9]{1,6})$/i', $attachment['name'], $m) ? $m[1] : null; $basename = preg_replace('/[^a-z0-9_.-]/i', '', basename($attachment['name'], $ext)); // to 7bit ascii if (!$basename) $basename = 'noname'; $cid = $basename . '.' . microtime(true) . $key . $ext; $object['_attachments'][$cid] = $attachment; unset($object['_attachments'][$key]); } } } // save recurrence exceptions as individual objects due to lack of support in Kolab v2 format if (kolab_storage::$version == '2.0' && $object['recurrence']['EXCEPTIONS']) { $this->save_recurrence_exceptions($object, $type); } // check IMAP BINARY extension support for 'file' objects // allow configuration to workaround bug in Cyrus < 2.4.17 $rcmail = rcube::get_instance(); $binary = $type == 'file' && !$rcmail->config->get('kolab_binary_disable') && $this->imap->get_capability('BINARY'); // generate and save object message if ($raw_msg = $this->build_message($object, $type, $binary, $body_file)) { // resolve old msguid before saving if ($uid && empty($object['_msguid']) && ($msguid = $this->cache->uid2msguid($uid))) { $object['_msguid'] = $msguid; $object['_mailbox'] = $this->name; } $result = $this->imap->save_message($this->name, $raw_msg, null, false, null, null, $binary); // update cache with new UID if ($result) { $old_uid = $object['_msguid']; $object['_msguid'] = $result; $object['_mailbox'] = $this->name; if ($old_uid) { // delete old message $this->cache->imap_mode(true); $this->imap->delete_message($old_uid, $object['_mailbox']); $this->cache->imap_mode(false); } // insert/update message in cache $this->cache->save($result, $object, $old_uid); } // remove temp file if ($body_file) { @unlink($body_file); } } return $result; } /** * Save recurrence exceptions as individual objects. * The Kolab v2 format doesn't allow us to save fully embedded exception objects. * * @param array Hash array with event properties * @param string Object type */ private function save_recurrence_exceptions(&$object, $type = null) { if ($object['recurrence']['EXCEPTIONS']) { $exdates = array(); foreach ((array)$object['recurrence']['EXDATE'] as $exdate) { $key = is_a($exdate, 'DateTime') ? $exdate->format('Y-m-d') : strval($exdate); $exdates[$key] = 1; } // save every exception as individual object foreach((array)$object['recurrence']['EXCEPTIONS'] as $exception) { $exception['uid'] = self::recurrence_exception_uid($object['uid'], $exception['start']->format('Ymd')); $exception['sequence'] = $object['sequence'] + 1; if ($exception['thisandfuture']) { $exception['recurrence'] = $object['recurrence']; // adjust the recurrence duration of the exception if ($object['recurrence']['COUNT']) { $recurrence = new kolab_date_recurrence($object['_formatobj']); if ($end = $recurrence->end()) { unset($exception['recurrence']['COUNT']); $exception['recurrence']['UNTIL'] = $end; } } // set UNTIL date if we have a thisandfuture exception $untildate = clone $exception['start']; $untildate->sub(new DateInterval('P1D')); $object['recurrence']['UNTIL'] = $untildate; unset($object['recurrence']['COUNT']); } else { if (!$exdates[$exception['start']->format('Y-m-d')]) $object['recurrence']['EXDATE'][] = clone $exception['start']; unset($exception['recurrence']); } unset($exception['recurrence']['EXCEPTIONS'], $exception['_formatobj'], $exception['_msguid']); $this->save($exception, $type, $exception['uid']); } unset($object['recurrence']['EXCEPTIONS']); } } /** * Generate an object UID with the given recurrence-ID in a way that it is * unique (the original UID is not a substring) but still recoverable. */ private static function recurrence_exception_uid($uid, $recurrence_id) { $offset = -2; return substr($uid, 0, $offset) . '-' . $recurrence_id . '-' . substr($uid, $offset); } /** * Delete the specified object from this folder. * * @param mixed $object The Kolab object to delete or object UID * @param boolean $expunge Should the folder be expunged? * * @return boolean True if successful, false on error */ public function delete($object, $expunge = true) { if (!$this->valid) { return false; } $msguid = is_array($object) ? $object['_msguid'] : $this->cache->uid2msguid($object); $success = false; $this->cache->imap_mode(true); if ($msguid && $expunge) { $success = $this->imap->delete_message($msguid, $this->name); } else if ($msguid) { $success = $this->imap->set_flag($msguid, 'DELETED', $this->name); } $this->cache->imap_mode(false); if ($success) { $this->cache->set($msguid, false); } return $success; } /** * */ public function delete_all() { if (!$this->valid) { return false; } $this->cache->purge(); $this->cache->imap_mode(true); $result = $this->imap->clear_folder($this->name); $this->cache->imap_mode(false); return $result; } /** * Restore a previously deleted object * * @param string Object UID * @return mixed Message UID on success, false on error */ public function undelete($uid) { if (!$this->valid) { return false; } if ($msguid = $this->cache->uid2msguid($uid, true)) { $this->cache->imap_mode(true); $result = $this->imap->set_flag($msguid, 'UNDELETED', $this->name); $this->cache->imap_mode(false); if ($result) { return $msguid; } } return false; } /** * Move a Kolab object message to another IMAP folder * * @param string Object UID * @param string IMAP folder to move object to * @return boolean True on success, false on failure */ public function move($uid, $target_folder) { if (!$this->valid) { return false; } if (is_string($target_folder)) $target_folder = kolab_storage::get_folder($target_folder); if ($msguid = $this->cache->uid2msguid($uid)) { $this->cache->imap_mode(true); $result = $this->imap->move_message($msguid, $target_folder->name, $this->name); $this->cache->imap_mode(false); if ($result) { $new_uid = ($copyuid = $this->imap->conn->data['COPYUID']) ? $copyuid[1] : null; $this->cache->move($msguid, $uid, $target_folder, $new_uid); return true; } else { rcube::raise_error(array( 'code' => 600, 'type' => 'php', 'file' => __FILE__, 'line' => __LINE__, 'message' => "Failed to move message $msguid to $target_folder: " . $this->imap->get_error_str(), ), true); } } return false; } /** * Creates source of the configuration object message * * @param array $object The array that holds the data of the object. * @param string $type The type of the kolab object. * @param bool $binary Enables use of binary encoding of attachment(s) * @param string $body_file Reference to filename of message body * * @return mixed Message as string or array with two elements * (one for message file path, second for message headers) */ private function build_message(&$object, $type, $binary, &$body_file) { // load old object to preserve data we don't understand/process if (is_object($object['_formatobj'])) $format = $object['_formatobj']; else if ($object['_msguid'] && ($old = $this->cache->get($object['_msguid'], $type, $object['_mailbox']))) $format = $old['_formatobj']; // create new kolab_format instance if (!$format) $format = kolab_format::factory($type, kolab_storage::$version); if (PEAR::isError($format)) return false; $format->set($object); $xml = $format->write(kolab_storage::$version); $object['uid'] = $format->uid; // read UID from format $object['_formatobj'] = $format; if (empty($xml) || !$format->is_valid() || empty($object['uid'])) { return false; } $mime = new Mail_mime("\r\n"); $rcmail = rcube::get_instance(); $headers = array(); $files = array(); $part_id = 1; $encoding = $binary ? 'binary' : 'base64'; if ($user_email = $rcmail->get_user_email()) { $headers['From'] = $user_email; $headers['To'] = $user_email; } $headers['Date'] = date('r'); $headers['X-Kolab-Type'] = kolab_format::KTYPE_PREFIX . $type; $headers['X-Kolab-Mime-Version'] = kolab_storage::$version; $headers['Subject'] = $object['uid']; // $headers['Message-ID'] = $rcmail->gen_message_id(); $headers['User-Agent'] = $rcmail->config->get('useragent'); // Check if we have enough memory to handle the message in it // It's faster than using files, so we'll do this if we only can if (!empty($object['_attachments']) && ($mem_limit = parse_bytes(ini_get('memory_limit'))) > 0) { $memory = function_exists('memory_get_usage') ? memory_get_usage() : 16*1024*1024; // safe value: 16MB foreach ($object['_attachments'] as $attachment) { $memory += $attachment['size']; } // 1.33 is for base64, we need at least 4x more memory than the message size if ($memory * ($binary ? 1 : 1.33) * 4 > $mem_limit) { $marker = '%%%~~~' . md5(microtime(true) . $memory) . '~~~%%%'; $is_file = true; $temp_dir = unslashify($rcmail->config->get('temp_dir')); $mime->setParam('delay_file_io', true); } } $mime->headers($headers); $mime->setTXTBody("This is a Kolab Groupware object. " . "To view this object you will need an email client that understands the Kolab Groupware format. " . "For a list of such email clients please visit http://www.kolab.org/\n\n"); $ctype = kolab_storage::$version == '2.0' ? $format->CTYPEv2 : $format->CTYPE; // Convert new lines to \r\n, to wrokaround "NO Message contains bare newlines" // when APPENDing from temp file $xml = preg_replace('/\r?\n/', "\r\n", $xml); $mime->addAttachment($xml, // file $ctype, // content-type 'kolab.xml', // filename false, // is_file '8bit', // encoding 'attachment', // disposition RCUBE_CHARSET // charset ); $part_id++; // save object attachments as separate parts foreach ((array)$object['_attachments'] as $key => $att) { if (empty($att['content']) && !empty($att['id'])) { // @TODO: use IMAP CATENATE to skip attachment fetch+push operation $msguid = $object['_copyfrom'] ?: ($object['_msguid'] ?: $object['uid']); if ($is_file) { $att['path'] = tempnam($temp_dir, 'rcmAttmnt'); if (($fp = fopen($att['path'], 'w')) && $this->get_attachment($msguid, $att['id'], $object['_mailbox'], false, $fp, true)) { fclose($fp); } else { return false; } } else { $att['content'] = $this->get_attachment($msguid, $att['id'], $object['_mailbox'], false, null, true); } } $headers = array('Content-ID' => Mail_mimePart::encodeHeader('Content-ID', '<' . $key . '>', RCUBE_CHARSET, 'quoted-printable')); $name = !empty($att['name']) ? $att['name'] : $key; // To store binary files we can use faster method // without writting full message content to a temporary file but // directly to IMAP, see rcube_imap_generic::append(). // I.e. use file handles where possible if (!empty($att['path'])) { if ($is_file && $binary) { $files[] = fopen($att['path'], 'r'); $mime->addAttachment($marker, $att['mimetype'], $name, false, $encoding, 'attachment', '', '', '', null, null, '', RCUBE_CHARSET, $headers); } else { $mime->addAttachment($att['path'], $att['mimetype'], $name, true, $encoding, 'attachment', '', '', '', null, null, '', RCUBE_CHARSET, $headers); } } else { if (is_resource($att['content']) && $is_file && $binary) { $files[] = $att['content']; $mime->addAttachment($marker, $att['mimetype'], $name, false, $encoding, 'attachment', '', '', '', null, null, '', RCUBE_CHARSET, $headers); } else { if (is_resource($att['content'])) { @rewind($att['content']); $att['content'] = stream_get_contents($att['content']); } $mime->addAttachment($att['content'], $att['mimetype'], $name, false, $encoding, 'attachment', '', '', '', null, null, '', RCUBE_CHARSET, $headers); } } $object['_attachments'][$key]['id'] = ++$part_id; } if (!$is_file || !empty($files)) { $message = $mime->getMessage(); } // parse message and build message array with // attachment file pointers in place of file markers if (!empty($files)) { $message = explode($marker, $message); $tmp = array(); foreach ($message as $msg_part) { $tmp[] = $msg_part; if ($file = array_shift($files)) { $tmp[] = $file; } } $message = $tmp; } // write complete message body into temp file else if ($is_file) { // use common temp dir $body_file = tempnam($temp_dir, 'rcmMsg'); if (PEAR::isError($mime_result = $mime->saveMessageBody($body_file))) { rcube::raise_error(array('code' => 650, 'type' => 'php', 'file' => __FILE__, 'line' => __LINE__, 'message' => "Could not create message: ".$mime_result->getMessage()), true, false); return false; } $message = array(trim($mime->txtHeaders()) . "\r\n\r\n", fopen($body_file, 'r')); } return $message; } /** * Triggers any required updates after changes within the * folder. This is currently only required for handling free/busy * information with Kolab. * * @return boolean|PEAR_Error True if successfull. */ public function trigger() { $owner = $this->get_owner(); $result = false; switch($this->type) { case 'event': if ($this->get_namespace() == 'personal') { $result = $this->trigger_url( sprintf('%s/trigger/%s/%s.pfb', kolab_storage::get_freebusy_server(), urlencode($owner), urlencode($this->imap->mod_folder($this->name)) ), $this->imap->options['user'], $this->imap->options['password'] ); } break; default: return true; } if ($result && is_object($result) && is_a($result, 'PEAR_Error')) { return PEAR::raiseError(sprintf("Failed triggering folder %s. Error was: %s", $this->name, $result->getMessage())); } return $result; } /** * Triggers a URL. * * @param string $url The URL to be triggered. * @param string $auth_user Username to authenticate with * @param string $auth_passwd Password for basic auth * @return boolean|PEAR_Error True if successfull. */ private function trigger_url($url, $auth_user = null, $auth_passwd = null) { try { $request = libkolab::http_request($url); // set authentication credentials if ($auth_user && $auth_passwd) $request->setAuth($auth_user, $auth_passwd); $result = $request->send(); // rcube::write_log('trigger', $result->getBody()); } catch (Exception $e) { return PEAR::raiseError($e->getMessage()); } return true; } }