+-----------------------------------------------------------------------+
| program/include/rcube_message.php |
| |
- | This file is part of the RoundCube Webmail client |
- | Copyright (C) 2008, RoundCube Dev. - Switzerland |
+ | This file is part of the Roundcube Webmail client |
+ | Copyright (C) 2008-2010, The Roundcube Dev Team |
| Licensed under the GNU GPL |
| |
| PURPOSE: |
| Author: Thomas Bruederli <roundcube@gmail.com> |
+-----------------------------------------------------------------------+
- $Id: rcube_imap.php 1344 2008-04-30 08:21:42Z thomasb $
+ $Id: rcube_message.php 5514 2011-11-30 11:35:43Z alec $
*/
*/
class rcube_message
{
- private $app;
- private $imap;
- private $opt = array();
- private $inline_parts = array();
- private $parse_alternative = false;
-
- public $uid = null;
- public $headers;
- public $structure;
- public $parts = array();
- public $mime_parts = array();
- public $attachments = array();
- public $subject = '';
- public $is_safe = false;
-
-
- function __construct($uid)
- {
- $this->app = rcmail::get_instance();
- $this->imap = $this->app->imap;
-
- $this->uid = $uid;
- $this->headers = $this->imap->get_headers($uid);
- $this->subject = rcube_imap::decode_mime_string($this->headers->subject, $this->headers->charset);
-
- $this->is_safe = (intval($_GET['_safe']) || $_SESSION['safe_messages'][$uid]) ? true : false;
- $_SESSION['safe_messages'][$uid] = $this->is_safe;
-
- $this->opt = array(
- 'safe' => $this->is_safe,
- 'prefer_html' => $this->app->config->get('prefer_html'),
- 'get_url' => rcmail_url('get', array('_mbox' => $this->imap->get_mailbox_name(), '_uid' => $uid))
- );
-
- if ($this->structure = $this->imap->get_structure($uid)) {
- $this->get_mime_numbers($this->structure);
- $this->parse_structure($this->structure);
- }
- else {
- $this->body = $this->imap->get_body($uid);
+ /**
+ * Instace of rcmail.
+ *
+ * @var rcmail
+ */
+ private $app;
+
+ /**
+ * Instance of imap class
+ *
+ * @var rcube_imap
+ */
+ private $imap;
+ private $opt = array();
+ private $inline_parts = array();
+ private $parse_alternative = false;
+
+ public $uid = null;
+ public $headers;
+ public $parts = array();
+ public $mime_parts = array();
+ public $attachments = array();
+ public $subject = '';
+ public $sender = null;
+ public $is_safe = false;
+
+
+ /**
+ * __construct
+ *
+ * Provide a uid, and parse message structure.
+ *
+ * @param string $uid The message UID.
+ *
+ * @uses rcmail::get_instance()
+ * @uses rcube_imap::decode_mime_string()
+ * @uses self::set_safe()
+ *
+ * @see self::$app, self::$imap, self::$opt, self::$structure
+ */
+ function __construct($uid)
+ {
+ $this->app = rcmail::get_instance();
+ $this->imap = $this->app->imap;
+ $this->imap->get_all_headers = true;
+
+ $this->uid = $uid;
+ $this->headers = $this->imap->get_message($uid);
+
+ if (!$this->headers)
+ return;
+
+ $this->subject = rcube_imap::decode_mime_string(
+ $this->headers->subject, $this->headers->charset);
+ list(, $this->sender) = each($this->imap->decode_address_list($this->headers->from));
+
+ $this->set_safe((intval($_GET['_safe']) || $_SESSION['safe_messages'][$uid]));
+ $this->opt = array(
+ 'safe' => $this->is_safe,
+ 'prefer_html' => $this->app->config->get('prefer_html'),
+ 'get_url' => rcmail_url('get', array(
+ '_mbox' => $this->imap->get_mailbox_name(), '_uid' => $uid))
+ );
+
+ if (!empty($this->headers->structure)) {
+ $this->get_mime_numbers($this->headers->structure);
+ $this->parse_structure($this->headers->structure);
+ }
+ else {
+ $this->body = $this->imap->get_body($uid);
+ }
+
+ // notify plugins and let them analyze this structured message object
+ $this->app->plugins->exec_hook('message_load', array('object' => $this));
}
- }
-
-
- /**
- * Return a (decoded) message header
- *
- * @param string Header name
- * @param bool Don't mime-decode the value
- * @return string Header value
- */
- public function get_header($name, $raw = false)
- {
- $value = $this->headers->$name;
- return $raw ? $value : $this->imap->decode_header($value);
- }
-
-
- /**
- * Compose a valid URL for getting a message part
- *
- * @param string Part MIME-ID
- * @return string URL or false if part does not exist
- */
- public function get_part_url($mime_id)
- {
- if ($this->mime_parts[$mime_id])
- return $this->opt['get_url'] . "&_part=" . $mime_id;
- else
- return false;
- }
-
-
- /**
- * Get content of a specific part of this message
- *
- * @param string Part MIME-ID
- * @return string Part content
- */
- public function get_part_content($mime_id)
- {
- if ($part = $this->mime_parts[$mime_id])
- return $this->imap->get_message_part($this->uid, $mime_id, $part);
- else
- return null;
- }
-
-
- /**
- * Determine if the message contains a HTML part
- *
- * @return bool True if a HTML is available, False if not
- */
- function has_html_part()
- {
- // check all message parts
- foreach ($this->parts as $pid => $part) {
- $mimetype = strtolower($part->ctype_primary . '/' . $part->ctype_secondary);
- if ($mimetype == 'text/html')
- return true;
- }
-
- return false;
- }
-
- /**
- * Return the first HTML part of this message
- *
- * @return string HTML message part content
- */
- function first_html_part()
+
+
+ /**
+ * Return a (decoded) message header
+ *
+ * @param string $name Header name
+ * @param bool $row Don't mime-decode the value
+ * @return string Header value
+ */
+ public function get_header($name, $raw = false)
{
- $html_part = null;
-
- // check all message parts
- foreach ($this->mime_parts as $mime_id => $part) {
- $mimetype = strtolower($part->ctype_primary . '/' . $part->ctype_secondary);
- if ($mimetype == 'text/html') {
- $html_part = $this->imap->get_message_part($this->uid, $mime_id, $part);
- }
+ if ($this->headers->$name)
+ $value = $this->headers->$name;
+ else if ($this->headers->others[$name])
+ $value = $this->headers->others[$name];
+
+ return $raw ? $value : $this->imap->decode_header($value);
}
- return $html_part;
- }
+ /**
+ * Set is_safe var and session data
+ *
+ * @param bool $safe enable/disable
+ */
+ public function set_safe($safe = true)
+ {
+ $this->is_safe = $safe;
+ $_SESSION['safe_messages'][$this->uid] = $this->is_safe;
+ }
- /**
- * Return the first text part of this message
- *
- * @return string Plain text message/part content
- */
- function first_text_part()
+
+ /**
+ * Compose a valid URL for getting a message part
+ *
+ * @param string $mime_id Part MIME-ID
+ * @return string URL or false if part does not exist
+ */
+ public function get_part_url($mime_id, $embed = false)
{
- // no message structure, return complete body
- if (empty($this->parts))
- return $this->body;
-
- $out = null;
-
- // check all message parts
- foreach ($this->mime_parts as $mime_id => $part) {
- $mimetype = strtolower($part->ctype_primary . '/' . $part->ctype_secondary);
-
- if ($mimetype == 'text/plain') {
- $out = $this->imap->get_message_part($this->uid, $mime_id, $part);
- break;
- }
- else if ($mimetype == 'text/html') {
- $html_part = $this->imap->get_message_part($this->uid, $mime_id, $part);
-
- // remove special chars encoding
- $trans = array_flip(get_html_translation_table(HTML_ENTITIES));
- $html_part = strtr($html_part, $trans);
-
- // create instance of html2text class
- $txt = new html2text($html_part);
- $out = $txt->get_text();
- break;
- }
+ if ($this->mime_parts[$mime_id])
+ return $this->opt['get_url'] . '&_part=' . $mime_id . ($embed ? '&_embed=1' : '');
+ else
+ return false;
}
- return $out;
- }
-
-
- /**
- * Raad the message structure returend by the IMAP server
- * and build flat lists of content parts and attachments
- *
- * @param object rcube_message_part Message structure node
- * @param bool True when called recursively
- */
- private function parse_structure($structure, $recursive = false)
- {
- $message_ctype_primary = strtolower($structure->ctype_primary);
- $message_ctype_secondary = strtolower($structure->ctype_secondary);
-
- // show message headers
- if ($recursive && is_array($structure->headers) && isset($structure->headers['subject'])) {
- $c = new stdClass;
- $c->type = 'headers';
- $c->headers = &$structure->headers;
- $this->parts[] = $c;
+
+ /**
+ * Get content of a specific part of this message
+ *
+ * @param string $mime_id Part MIME-ID
+ * @param resource $fp File pointer to save the message part
+ * @return string Part content
+ */
+ public function get_part_content($mime_id, $fp=NULL)
+ {
+ if ($part = $this->mime_parts[$mime_id]) {
+ // stored in message structure (winmail/inline-uuencode)
+ if ($part->encoding == 'stream') {
+ if ($fp) {
+ fwrite($fp, $part->body);
+ }
+ return $fp ? true : $part->body;
+ }
+ // get from IMAP
+ return $this->imap->get_message_part($this->uid, $mime_id, $part, NULL, $fp);
+ } else
+ return null;
}
- // print body if message doesn't have multiple parts
- if ($message_ctype_primary == 'text' && !$recursive) {
- $structure->type = 'content';
- $this->parts[] = &$structure;
+
+ /**
+ * Determine if the message contains a HTML part
+ *
+ * @return bool True if a HTML is available, False if not
+ */
+ function has_html_part()
+ {
+ // check all message parts
+ foreach ($this->parts as $pid => $part) {
+ $mimetype = strtolower($part->ctype_primary . '/' . $part->ctype_secondary);
+ if ($mimetype == 'text/html')
+ return true;
+ }
+
+ return false;
}
- // message contains alternative parts
- else if ($message_ctype_primary == 'multipart' && ($message_ctype_secondary == 'alternative') && is_array($structure->parts)) {
- // get html/plaintext parts
- $plain_part = $html_part = $print_part = $related_part = null;
-
- foreach ($structure->parts as $p => $sub_part) {
- $rel_parts = $attachmnts = null;
- $sub_ctype_primary = strtolower($sub_part->ctype_primary);
- $sub_ctype_secondary = strtolower($sub_part->ctype_secondary);
-
- // check if sub part is
- if ($sub_ctype_primary=='text' && $sub_ctype_secondary=='plain')
- $plain_part = $p;
- else if ($sub_ctype_primary=='text' && $sub_ctype_secondary=='html')
- $html_part = $p;
- else if ($sub_ctype_primary=='text' && $sub_ctype_secondary=='enriched')
- $enriched_part = $p;
- else if ($sub_ctype_primary=='multipart' && ($sub_ctype_secondary=='related' || $sub_ctype_secondary=='mixed'))
- $related_part = $p;
- }
-
- // parse related part (alternative part could be in here)
- if ($related_part !== null && !$this->parse_alternative) {
- $this->parse_alternative = true;
- $this->parse_structure($structure->parts[$related_part], true);
- $this->parse_alternative = false;
-
- // if plain part was found, we should unset it if html is preferred
- if ($this->opt['prefer_html'] && count($this->parts))
- $plain_part = null;
- }
-
- // choose html/plain part to print
- if ($html_part !== null && $this->opt['prefer_html']) {
- $print_part = &$structure->parts[$html_part];
- }
- else if ($enriched_part !== null) {
- $print_part = &$structure->parts[$enriched_part];
- }
- else if ($plain_part !== null) {
- $print_part = &$structure->parts[$plain_part];
- }
-
- // add the right message body
- if (is_object($print_part)) {
- $print_part->type = 'content';
- $this->parts[] = $print_part;
- }
- // show plaintext warning
- else if ($html_part !== nullL && empty($this->parts)) {
- $c = new stdClass;
- $c->type = 'content';
- $c->body = rcube_label('htmlmessage');
- $c->ctype_primary = 'text';
- $c->ctype_secondary = 'plain';
-
- $this->parts[] = $c;
- }
-
- // add html part as attachment
- if ($html_part !== null && $structure->parts[$html_part] !== $print_part) {
- $html_part = &$structure->parts[$html_part];
- $html_part->filename = rcube_label('htmlmessage');
- $html_part->mimetype = 'text/html';
-
- $this->attachments[] = $html_part;
- }
+
+
+ /**
+ * Return the first HTML part of this message
+ *
+ * @return string HTML message part content
+ */
+ function first_html_part()
+ {
+ // check all message parts
+ foreach ($this->mime_parts as $mime_id => $part) {
+ $mimetype = strtolower($part->ctype_primary . '/' . $part->ctype_secondary);
+ if ($mimetype == 'text/html') {
+ return $this->imap->get_message_part($this->uid, $mime_id, $part);
+ }
+ }
}
- // this is an ecrypted message -> create a plaintext body with the according message
- else if ($message_ctype_primary == 'multipart' && $message_ctype_secondary == 'encrypted') {
- $p = new stdClass;
- $p->type = 'content';
- $p->ctype_primary = 'text';
- $p->ctype_secondary = 'plain';
- $p->body = rcube_label('encryptedmessage');
-
- $this->parts[] = $p;
+
+
+ /**
+ * Return the first text part of this message
+ *
+ * @param rcube_message_part $part Reference to the part if found
+ * @return string Plain text message/part content
+ */
+ function first_text_part(&$part=null)
+ {
+ // no message structure, return complete body
+ if (empty($this->parts))
+ return $this->body;
+
+ // check all message parts
+ foreach ($this->mime_parts as $mime_id => $part) {
+ $mimetype = $part->ctype_primary . '/' . $part->ctype_secondary;
+
+ if ($mimetype == 'text/plain') {
+ return $this->imap->get_message_part($this->uid, $mime_id, $part);
+ }
+ else if ($mimetype == 'text/html') {
+ $out = $this->imap->get_message_part($this->uid, $mime_id, $part);
+
+ // remove special chars encoding
+ $trans = array_flip(get_html_translation_table(HTML_ENTITIES));
+ $out = strtr($out, $trans);
+
+ // create instance of html2text class
+ $txt = new html2text($out);
+ return $txt->get_text();
+ }
+ }
+
+ $part = null;
+ return null;
}
- // message contains multiple parts
- else if (is_array($structure->parts) && !empty($structure->parts)) {
- // iterate over parts
- for ($i=0; $i < count($structure->parts); $i++) {
- $mail_part = &$structure->parts[$i];
- $primary_type = strtolower($mail_part->ctype_primary);
- $secondary_type = strtolower($mail_part->ctype_secondary);
-
- // multipart/alternative
- if ($primary_type=='multipart') {
- $this->parse_structure($mail_part, true);
+
+
+ /**
+ * Raad the message structure returend by the IMAP server
+ * and build flat lists of content parts and attachments
+ *
+ * @param rcube_message_part $structure Message structure node
+ * @param bool $recursive True when called recursively
+ */
+ private function parse_structure($structure, $recursive = false)
+ {
+ // real content-type of message/rfc822 part
+ if ($structure->mimetype == 'message/rfc822' && $structure->real_mimetype)
+ $mimetype = $structure->real_mimetype;
+ else
+ $mimetype = $structure->mimetype;
+
+ // show message headers
+ if ($recursive && is_array($structure->headers) && isset($structure->headers['subject'])) {
+ $c = new stdClass;
+ $c->type = 'headers';
+ $c->headers = &$structure->headers;
+ $this->parts[] = $c;
}
- // part text/[plain|html] OR message/delivery-status
- else if (($primary_type == 'text' && ($secondary_type == 'plain' || $secondary_type == 'html') && $mail_part->disposition != 'attachment') ||
- ($primary_type == 'message' && ($secondary_type == 'delivery-status' || $secondary_type == 'disposition-notification'))) {
-
- // add text part if we're not in alternative mode or if it matches the prefs
- if (!$this->parse_alternative ||
- ($secondary_type == 'html' && $this->opt['prefer_html']) ||
- ($secondary_type == 'plain' && !$this->opt['prefer_html'])) {
- $mail_part->type = 'content';
- $this->parts[] = $mail_part;
- }
-
- // list as attachment as well
- if (!empty($mail_part->filename))
- $this->attachments[] = $mail_part;
+
+ // Allow plugins to handle message parts
+ $plugin = $this->app->plugins->exec_hook('message_part_structure',
+ array('object' => $this, 'structure' => $structure,
+ 'mimetype' => $mimetype, 'recursive' => $recursive));
+
+ if ($plugin['abort'])
+ return;
+
+ $structure = $plugin['structure'];
+ list($message_ctype_primary, $message_ctype_secondary) = explode('/', $plugin['mimetype']);
+
+ // print body if message doesn't have multiple parts
+ if ($message_ctype_primary == 'text' && !$recursive) {
+ $structure->type = 'content';
+ $this->parts[] = &$structure;
+
+ // Parse simple (plain text) message body
+ if ($message_ctype_secondary == 'plain')
+ foreach ((array)$this->uu_decode($structure) as $uupart) {
+ $this->mime_parts[$uupart->mime_id] = $uupart;
+ $this->attachments[] = $uupart;
+ }
+ }
+ // the same for pgp signed messages
+ else if ($mimetype == 'application/pgp' && !$recursive) {
+ $structure->type = 'content';
+ $this->parts[] = &$structure;
+ }
+ // message contains (more than one!) alternative parts
+ else if ($mimetype == 'multipart/alternative'
+ && is_array($structure->parts) && count($structure->parts) > 1
+ ) {
+ // get html/plaintext parts
+ $plain_part = $html_part = $print_part = $related_part = null;
+
+ foreach ($structure->parts as $p => $sub_part) {
+ $sub_mimetype = $sub_part->mimetype;
+
+ // check if sub part is
+ if ($sub_mimetype == 'text/plain')
+ $plain_part = $p;
+ else if ($sub_mimetype == 'text/html')
+ $html_part = $p;
+ else if ($sub_mimetype == 'text/enriched')
+ $enriched_part = $p;
+ else if (in_array($sub_mimetype, array('multipart/related', 'multipart/mixed', 'multipart/alternative')))
+ $related_part = $p;
+ }
+
+ // parse related part (alternative part could be in here)
+ if ($related_part !== null && !$this->parse_alternative) {
+ $this->parse_alternative = true;
+ $this->parse_structure($structure->parts[$related_part], true);
+ $this->parse_alternative = false;
+
+ // if plain part was found, we should unset it if html is preferred
+ if ($this->opt['prefer_html'] && count($this->parts))
+ $plain_part = null;
+ }
+
+ // choose html/plain part to print
+ if ($html_part !== null && $this->opt['prefer_html']) {
+ $print_part = &$structure->parts[$html_part];
+ }
+ else if ($enriched_part !== null) {
+ $print_part = &$structure->parts[$enriched_part];
+ }
+ else if ($plain_part !== null) {
+ $print_part = &$structure->parts[$plain_part];
+ }
+
+ // add the right message body
+ if (is_object($print_part)) {
+ $print_part->type = 'content';
+ $this->parts[] = $print_part;
+ }
+ // show plaintext warning
+ else if ($html_part !== null && empty($this->parts)) {
+ $c = new stdClass;
+ $c->type = 'content';
+ $c->ctype_primary = 'text';
+ $c->ctype_secondary = 'plain';
+ $c->body = rcube_label('htmlmessage');
+
+ $this->parts[] = $c;
+ }
+
+ // add html part as attachment
+ if ($html_part !== null && $structure->parts[$html_part] !== $print_part) {
+ $html_part = &$structure->parts[$html_part];
+ $html_part->filename = rcube_label('htmlmessage');
+ $html_part->mimetype = 'text/html';
+
+ $this->attachments[] = $html_part;
+ }
+ }
+ // this is an ecrypted message -> create a plaintext body with the according message
+ else if ($mimetype == 'multipart/encrypted') {
+ $p = new stdClass;
+ $p->type = 'content';
+ $p->ctype_primary = 'text';
+ $p->ctype_secondary = 'plain';
+ $p->body = rcube_label('encryptedmessage');
+ $p->size = strlen($p->body);
+
+ $this->parts[] = $p;
}
- // part message/*
- else if ($primary_type=='message') {
- $this->parse_structure($mail_part, true);
+ // message contains multiple parts
+ else if (is_array($structure->parts) && !empty($structure->parts)) {
+ // iterate over parts
+ for ($i=0; $i < count($structure->parts); $i++) {
+ $mail_part = &$structure->parts[$i];
+ $primary_type = $mail_part->ctype_primary;
+ $secondary_type = $mail_part->ctype_secondary;
+
+ // real content-type of message/rfc822
+ if ($mail_part->real_mimetype) {
+ $part_orig_mimetype = $mail_part->mimetype;
+ $part_mimetype = $mail_part->real_mimetype;
+ list($primary_type, $secondary_type) = explode('/', $part_mimetype);
+ }
+ else
+ $part_mimetype = $mail_part->mimetype;
+
+ // multipart/alternative
+ if ($primary_type == 'multipart') {
+ $this->parse_structure($mail_part, true);
+
+ // list message/rfc822 as attachment as well (mostly .eml)
+ if ($part_orig_mimetype == 'message/rfc822' && !empty($mail_part->filename))
+ $this->attachments[] = $mail_part;
+ }
+ // part text/[plain|html] or delivery status
+ else if ((($part_mimetype == 'text/plain' || $part_mimetype == 'text/html') && $mail_part->disposition != 'attachment') ||
+ in_array($part_mimetype, array('message/delivery-status', 'text/rfc822-headers', 'message/disposition-notification'))
+ ) {
+ // Allow plugins to handle also this part
+ $plugin = $this->app->plugins->exec_hook('message_part_structure',
+ array('object' => $this, 'structure' => $mail_part,
+ 'mimetype' => $part_mimetype, 'recursive' => true));
+
+ if ($plugin['abort'])
+ continue;
+
+ if ($part_mimetype == 'text/html') {
+ $got_html_part = true;
+ }
+
+ $mail_part = $plugin['structure'];
+ list($primary_type, $secondary_type) = explode('/', $plugin['mimetype']);
+
+ // add text part if it matches the prefs
+ if (!$this->parse_alternative ||
+ ($secondary_type == 'html' && $this->opt['prefer_html']) ||
+ ($secondary_type == 'plain' && !$this->opt['prefer_html'])
+ ) {
+ $mail_part->type = 'content';
+ $this->parts[] = $mail_part;
+ }
+
+ // list as attachment as well
+ if (!empty($mail_part->filename))
+ $this->attachments[] = $mail_part;
+ }
+ // part message/*
+ else if ($primary_type == 'message') {
+ $this->parse_structure($mail_part, true);
+
+ // list as attachment as well (mostly .eml)
+ if (!empty($mail_part->filename))
+ $this->attachments[] = $mail_part;
+ }
+ // ignore "virtual" protocol parts
+ else if ($primary_type == 'protocol') {
+ continue;
+ }
+ // part is Microsoft Outlook TNEF (winmail.dat)
+ else if ($part_mimetype == 'application/ms-tnef') {
+ foreach ((array)$this->tnef_decode($mail_part) as $tpart) {
+ $this->mime_parts[$tpart->mime_id] = $tpart;
+ $this->attachments[] = $tpart;
+ }
+ }
+ // part is a file/attachment
+ else if (preg_match('/^(inline|attach)/', $mail_part->disposition) ||
+ $mail_part->headers['content-id'] ||
+ ($mail_part->filename &&
+ (empty($mail_part->disposition) || preg_match('/^[a-z0-9!#$&.+^_-]+$/i', $mail_part->disposition)))
+ ) {
+ // skip apple resource forks
+ if ($message_ctype_secondary == 'appledouble' && $secondary_type == 'applefile')
+ continue;
+
+ // part belongs to a related message and is linked
+ if ($mimetype == 'multipart/related'
+ && ($mail_part->headers['content-id'] || $mail_part->headers['content-location'])) {
+ if ($mail_part->headers['content-id'])
+ $mail_part->content_id = preg_replace(array('/^</', '/>$/'), '', $mail_part->headers['content-id']);
+ if ($mail_part->headers['content-location'])
+ $mail_part->content_location = $mail_part->headers['content-base'] . $mail_part->headers['content-location'];
+
+ $this->inline_parts[] = $mail_part;
+ }
+ // attachment encapsulated within message/rfc822 part needs further decoding (#1486743)
+ else if ($part_orig_mimetype == 'message/rfc822') {
+ $this->parse_structure($mail_part, true);
+
+ // list as attachment as well (mostly .eml)
+ if (!empty($mail_part->filename))
+ $this->attachments[] = $mail_part;
+ }
+ // regular attachment with valid content type
+ // (content-type name regexp according to RFC4288.4.2)
+ else if (preg_match('/^[a-z0-9!#$&.+^_-]+\/[a-z0-9!#$&.+^_-]+$/i', $part_mimetype)) {
+ if (!$mail_part->filename)
+ $mail_part->filename = 'Part '.$mail_part->mime_id;
+
+ $this->attachments[] = $mail_part;
+ }
+ // attachment with invalid content type
+ // replace malformed content type with application/octet-stream (#1487767)
+ else if ($mail_part->filename) {
+ $mail_part->ctype_primary = 'application';
+ $mail_part->ctype_secondary = 'octet-stream';
+ $mail_part->mimetype = 'application/octet-stream';
+
+ $this->attachments[] = $mail_part;
+ }
+ }
+ // attachment part as message/rfc822 (#1488026)
+ else if ($mail_part->mimetype == 'message/rfc822') {
+ $this->parse_structure($mail_part);
+ }
+ }
+
+ // if this was a related part try to resolve references
+ if ($mimetype == 'multipart/related' && sizeof($this->inline_parts)) {
+ $a_replaces = array();
+ $img_regexp = '/^image\/(gif|jpe?g|png|tiff|bmp|svg)/';
+
+ foreach ($this->inline_parts as $inline_object) {
+ $part_url = $this->get_part_url($inline_object->mime_id, true);
+ if ($inline_object->content_id)
+ $a_replaces['cid:'.$inline_object->content_id] = $part_url;
+ if ($inline_object->content_location) {
+ $a_replaces[$inline_object->content_location] = $part_url;
+ }
+
+ if (!empty($inline_object->filename)) {
+ // MS Outlook sends sometimes non-related attachments as related
+ // In this case multipart/related message has only one text part
+ // We'll add all such attachments to the attachments list
+ if (!isset($got_html_part) && empty($inline_object->content_id)) {
+ $this->attachments[] = $inline_object;
+ }
+ // MS Outlook sometimes also adds non-image attachments as related
+ // We'll add all such attachments to the attachments list
+ // Warning: some browsers support pdf in <img/>
+ else if (!preg_match($img_regexp, $inline_object->mimetype)) {
+ $this->attachments[] = $inline_object;
+ }
+ // @TODO: we should fetch HTML body and find attachment's content-id
+ // to handle also image attachments without reference in the body
+ // @TODO: should we list all image attachments in text mode?
+ }
+ }
+
+ // add replace array to each content part
+ // (will be applied later when part body is available)
+ foreach ($this->parts as $i => $part) {
+ if ($part->type == 'content')
+ $this->parts[$i]->replaces = $a_replaces;
+ }
+ }
}
- // ignore "virtual" protocol parts
- else if ($primary_type == 'protocol')
- continue;
-
- // part is file/attachment
- else if ($mail_part->disposition == 'attachment' || $mail_part->disposition == 'inline' ||
- $mail_part->headers['content-id'] || (empty($mail_part->disposition) && $mail_part->filename)) {
- // skip apple resource forks
- if ($message_ctype_secondary == 'appledouble' && $secondary_type == 'applefile')
- continue;
-
- // part belongs to a related message
- if ($message_ctype_secondary == 'related' && $mail_part->headers['content-id']) {
- $mail_part->content_id = preg_replace(array('/^</', '/>$/'), '', $mail_part->headers['content-id']);
- $this->inline_parts[] = $mail_part;
- }
- // is regular attachment
- else {
- if (!$mail_part->filename)
- $mail_part->filename = 'Part '.$mail_part->mime_id;
- $this->attachments[] = $mail_part;
- }
+ // message is a single part non-text
+ else if ($structure->filename) {
+ $this->attachments[] = $structure;
}
- }
+ // message is a single part non-text (without filename)
+ else if (preg_match('/application\//i', $mimetype)) {
+ $structure->filename = 'Part '.$structure->mime_id;
+ $this->attachments[] = $structure;
+ }
+ }
+
+
+ /**
+ * Fill aflat array with references to all parts, indexed by part numbers
+ *
+ * @param rcube_message_part $part Message body structure
+ */
+ private function get_mime_numbers(&$part)
+ {
+ if (strlen($part->mime_id))
+ $this->mime_parts[$part->mime_id] = &$part;
+
+ if (is_array($part->parts))
+ for ($i=0; $i<count($part->parts); $i++)
+ $this->get_mime_numbers($part->parts[$i]);
+ }
- // if this was a related part try to resolve references
- if ($message_ctype_secondary == 'related' && sizeof($this->inline_parts)) {
- $a_replaces = array();
- foreach ($this->inline_parts as $inline_object) {
- $a_replaces['cid:'.$inline_object->content_id] = $this->get_part_url($inline_object->mime_id);
+ /**
+ * Decode a Microsoft Outlook TNEF part (winmail.dat)
+ *
+ * @param rcube_message_part $part Message part to decode
+ * @return array
+ */
+ function tnef_decode(&$part)
+ {
+ // @TODO: attachment may be huge, hadle it via file
+ if (!isset($part->body))
+ $part->body = $this->imap->get_message_part($this->uid, $part->mime_id, $part);
+
+ $parts = array();
+ $tnef = new tnef_decoder;
+ $tnef_arr = $tnef->decompress($part->body);
+
+ foreach ($tnef_arr as $pid => $winatt) {
+ $tpart = new rcube_message_part;
+
+ $tpart->filename = trim($winatt['name']);
+ $tpart->encoding = 'stream';
+ $tpart->ctype_primary = trim(strtolower($winatt['type']));
+ $tpart->ctype_secondary = trim(strtolower($winatt['subtype']));
+ $tpart->mimetype = $tpart->ctype_primary . '/' . $tpart->ctype_secondary;
+ $tpart->mime_id = 'winmail.' . $part->mime_id . '.' . $pid;
+ $tpart->size = $winatt['size'];
+ $tpart->body = $winatt['stream'];
+
+ $parts[] = $tpart;
+ unset($tnef_arr[$pid]);
}
- // add replace array to each content part
- // (will be applied later when part body is available)
- foreach ($this->parts as $i => $part) {
- if ($part->type == 'content')
- $this->parts[$i]->replaces = $a_replaces;
+ return $parts;
+ }
+
+
+ /**
+ * Parse message body for UUencoded attachments bodies
+ *
+ * @param rcube_message_part $part Message part to decode
+ * @return array
+ */
+ function uu_decode(&$part)
+ {
+ // @TODO: messages may be huge, hadle body via file
+ if (!isset($part->body))
+ $part->body = $this->imap->get_message_part($this->uid, $part->mime_id, $part);
+
+ $parts = array();
+ // FIXME: line length is max.65?
+ $uu_regexp = '/begin [0-7]{3,4} ([^\n]+)\n(([\x21-\x7E]{0,65}\n)+)`\nend/s';
+
+ if (preg_match_all($uu_regexp, $part->body, $matches, PREG_SET_ORDER)) {
+ // remove attachments bodies from the message body
+ $part->body = preg_replace($uu_regexp, '', $part->body);
+ // update message content-type
+ $part->ctype_primary = 'multipart';
+ $part->ctype_secondary = 'mixed';
+ $part->mimetype = $part->ctype_primary . '/' . $part->ctype_secondary;
+
+ // add attachments to the structure
+ foreach ($matches as $pid => $att) {
+ $uupart = new rcube_message_part;
+
+ $uupart->filename = trim($att[1]);
+ $uupart->encoding = 'stream';
+ $uupart->body = convert_uudecode($att[2]);
+ $uupart->size = strlen($uupart->body);
+ $uupart->mime_id = 'uu.' . $part->mime_id . '.' . $pid;
+
+ $ctype = rc_mime_content_type($uupart->body, $uupart->filename, 'application/octet-stream', true);
+ $uupart->mimetype = $ctype;
+ list($uupart->ctype_primary, $uupart->ctype_secondary) = explode('/', $ctype);
+
+ $parts[] = $uupart;
+ unset($matches[$pid]);
+ }
}
- }
+
+ return $parts;
}
- // message is single part non-text
- else if ($structure->filename) {
- $this->attachments[] = $structure;
+
+ /**
+ * Interpret a format=flowed message body according to RFC 2646
+ *
+ * @param string $text Raw body formatted as flowed text
+ * @return string Interpreted text with unwrapped lines and stuffed space removed
+ */
+ public static function unfold_flowed($text)
+ {
+ $text = preg_split('/\r?\n/', $text);
+ $last = -1;
+ $q_level = 0;
+
+ foreach ($text as $idx => $line) {
+ if ($line[0] == '>' && preg_match('/^(>+\s*)/', $line, $regs)) {
+ $q = strlen(str_replace(' ', '', $regs[0]));
+ $line = substr($line, strlen($regs[0]));
+
+ if ($q == $q_level && $line
+ && isset($text[$last])
+ && $text[$last][strlen($text[$last])-1] == ' '
+ ) {
+ $text[$last] .= $line;
+ unset($text[$idx]);
+ }
+ else {
+ $last = $idx;
+ }
+ }
+ else {
+ $q = 0;
+ if ($line == '-- ') {
+ $last = $idx;
+ }
+ else {
+ // remove space-stuffing
+ $line = preg_replace('/^\s/', '', $line);
+
+ if (isset($text[$last]) && $line
+ && $text[$last] != '-- '
+ && $text[$last][strlen($text[$last])-1] == ' '
+ ) {
+ $text[$last] .= $line;
+ unset($text[$idx]);
+ }
+ else {
+ $text[$idx] = $line;
+ $last = $idx;
+ }
+ }
+ }
+ $q_level = $q;
+ }
+
+ return implode("\r\n", $text);
}
- }
- /**
- * Fill aflat array with references to all parts, indexed by part numbers
- *
- * @param object rcube_message_part Message body structure
- */
- private function get_mime_numbers(&$part)
- {
- if (strlen($part->mime_id))
- $this->mime_parts[$part->mime_id] = &$part;
-
- if (is_array($part->parts))
- for ($i=0; $i<count($part->parts); $i++)
- $this->get_mime_numbers($part->parts[$i]);
- }
+ /**
+ * Wrap the given text to comply with RFC 2646
+ *
+ * @param string $text Text to wrap
+ * @param int $length Length
+ * @return string Wrapped text
+ */
+ public static function format_flowed($text, $length = 72)
+ {
+ $text = preg_split('/\r?\n/', $text);
+
+ foreach ($text as $idx => $line) {
+ if ($line != '-- ') {
+ if ($line[0] == '>' && preg_match('/^(>+)/', $line, $regs)) {
+ $prefix = $regs[0];
+ $level = strlen($prefix);
+ $line = rtrim(substr($line, $level));
+ $line = $prefix . rc_wordwrap($line, $length - $level - 2, " \r\n$prefix ");
+ }
+ else if ($line) {
+ $line = rc_wordwrap(rtrim($line), $length - 2, " \r\n");
+ // space-stuffing
+ $line = preg_replace('/(^|\r\n)(From| |>)/', '\\1 \\2', $line);
+ }
+
+ $text[$idx] = $line;
+ }
+ }
+ return implode("\r\n", $text);
+ }
}
-
projects / roundcube.git / blobdiff