source: github/program/steps/mail/func.inc @ 79e6340

HEADcourier-fixdev-browser-capabilitiespdorelease-0.6release-0.7release-0.8
Last change on this file since 79e6340 was 79e6340, checked in by thomascube <thomas@…>, 2 years ago

Don't block CSS styles having important keywords
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File size: 55.9 KB
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1<?php
2
3/*
4 +-----------------------------------------------------------------------+
5 | program/steps/mail/func.inc                                           |
6 |                                                                       |
7 | This file is part of the Roundcube Webmail client                     |
8 | Copyright (C) 2005-2010, The Roundcube Dev Team                       |
9 | Licensed under the GNU GPL                                            |
10 |                                                                       |
11 | PURPOSE:                                                              |
12 |   Provide webmail functionality and GUI objects                       |
13 |                                                                       |
14 +-----------------------------------------------------------------------+
15 | Author: Thomas Bruederli <roundcube@gmail.com>                        |
16 +-----------------------------------------------------------------------+
17
18 $Id$
19
20*/
21
22// setup some global vars used by mail steps
23$SENT_MBOX = $RCMAIL->config->get('sent_mbox');
24$DRAFTS_MBOX = $RCMAIL->config->get('drafts_mbox');
25$SEARCH_MODS_DEFAULT = array('*' => array('subject'=>1, 'from'=>1), $SENT_MBOX => array('subject'=>1, 'to'=>1), $DRAFTS_MBOX => array('subject'=>1, 'to'=>1));
26
27// Simplified for IDN in Unicode
28//$EMAIL_ADDRESS_PATTERN = '([a-z0-9][a-z0-9\-\.\+\_]*@[a-z0-9][a-z0-9\-\.]*\\.[a-z]{2,5})';
29$EMAIL_ADDRESS_PATTERN = '([a-z0-9][a-z0-9\-\.\+\_]*@[^&@"\'.][^@&"\']*\\.[a-z]{2,5})';
30
31// actions that do not require imap connection here
32$NOIMAP_ACTIONS = array('addcontact', 'autocomplete', 'upload', 'display-attachment', 'remove-attachment', 'get');
33
34// always instantiate imap object (but not yet connect to server)
35$RCMAIL->imap_init();
36
37// log in to imap server
38if (!in_array($RCMAIL->action, $NOIMAP_ACTIONS) && !$RCMAIL->imap_connect()) {
39  $RCMAIL->kill_session();
40
41  if ($OUTPUT->ajax_call)
42    $OUTPUT->redirect(array(), 2000);
43
44  $OUTPUT->set_env('task', 'login');
45  $OUTPUT->send('login');
46}
47
48// set imap properties and session vars
49if (strlen(trim($mbox = get_input_value('_mbox', RCUBE_INPUT_GPC, true))))
50  $IMAP->set_mailbox(($_SESSION['mbox'] = $mbox));
51else if ($IMAP)
52  $_SESSION['mbox'] = $IMAP->get_mailbox_name();
53
54if (!empty($_GET['_page']))
55  $IMAP->set_page(($_SESSION['page'] = intval($_GET['_page'])));
56
57// set default sort col/order to session
58if (!isset($_SESSION['sort_col']))
59  $_SESSION['sort_col'] = $CONFIG['message_sort_col'];
60if (!isset($_SESSION['sort_order']))
61  $_SESSION['sort_order'] = $CONFIG['message_sort_order'];
62
63// set threads mode
64$a_threading = $RCMAIL->config->get('message_threading', array());
65if (isset($_GET['_threads'])) {
66  if ($_GET['_threads'])
67    $a_threading[$_SESSION['mbox']] = true;
68  else
69    unset($a_threading[$_SESSION['mbox']]);
70  $RCMAIL->user->save_prefs(array('message_threading' => $a_threading));
71}
72$IMAP->set_threading($a_threading[$_SESSION['mbox']]);
73
74// set message set for search result
75if (!empty($_REQUEST['_search']) && isset($_SESSION['search'])
76    && $_SESSION['search_request'] == $_REQUEST['_search']
77) {
78  $IMAP->set_search_set($_SESSION['search']);
79  $OUTPUT->set_env('search_request', $_REQUEST['_search']);
80  $OUTPUT->set_env('search_text', $_SESSION['last_text_search']);
81}
82
83// set main env variables, labels and page title
84if (empty($RCMAIL->action) || $RCMAIL->action == 'list') {
85  $mbox_name = $IMAP->get_mailbox_name();
86
87  if (empty($RCMAIL->action)) {
88    // initialize searching result if search_filter is used
89    if ($_SESSION['search_filter'] && $_SESSION['search_filter'] != 'ALL') {
90      $search_request = md5($mbox_name.$_SESSION['search_filter']);
91
92      $IMAP->search($mbox_name, $_SESSION['search_filter'], RCMAIL_CHARSET, $_SESSION['sort_col']);
93      $_SESSION['search'] = $IMAP->get_search_set();
94      $_SESSION['search_request'] = $search_request;
95      $OUTPUT->set_env('search_request', $search_request);
96      }
97
98      $search_mods = $RCMAIL->config->get('search_mods', $SEARCH_MODS_DEFAULT);
99      $OUTPUT->set_env('search_mods', $search_mods);
100  }
101
102  // set current mailbox and some other vars in client environment
103  $OUTPUT->set_env('mailbox', $mbox_name);
104  $OUTPUT->set_env('pagesize', $IMAP->page_size);
105  $OUTPUT->set_env('quota', $IMAP->get_capability('QUOTA'));
106  $OUTPUT->set_env('delimiter', $IMAP->get_hierarchy_delimiter());
107  $OUTPUT->set_env('threading', (bool) $IMAP->threading);
108  $OUTPUT->set_env('threads', $IMAP->threading || $IMAP->get_capability('THREAD'));
109
110  if ($CONFIG['flag_for_deletion'])
111    $OUTPUT->set_env('flag_for_deletion', true);
112  if ($CONFIG['read_when_deleted'])
113    $OUTPUT->set_env('read_when_deleted', true);
114  if ($CONFIG['skip_deleted'])
115    $OUTPUT->set_env('skip_deleted', true);
116  if ($CONFIG['display_next'])
117    $OUTPUT->set_env('display_next', true);
118
119  $OUTPUT->set_env('preview_pane_mark_read', $RCMAIL->config->get('preview_pane_mark_read', 0));
120
121  if ($CONFIG['trash_mbox'])
122    $OUTPUT->set_env('trash_mailbox', $CONFIG['trash_mbox']);
123  if ($CONFIG['drafts_mbox'])
124    $OUTPUT->set_env('drafts_mailbox', $CONFIG['drafts_mbox']);
125  if ($CONFIG['junk_mbox'])
126    $OUTPUT->set_env('junk_mailbox', $CONFIG['junk_mbox']);
127
128  if (!$OUTPUT->ajax_call)
129    $OUTPUT->add_label('checkingmail', 'deletemessage', 'movemessagetotrash',
130      'movingmessage', 'copyingmessage', 'deletingmessage', 'markingmessage',
131      'copy', 'move', 'quota');
132
133  $OUTPUT->set_pagetitle(rcmail_localize_foldername($mbox_name));
134}
135
136
137/**
138 * return the message list as HTML table
139 */
140function rcmail_message_list($attrib)
141{
142  global $IMAP, $CONFIG, $OUTPUT;
143
144  // add some labels to client
145  $OUTPUT->add_label('from', 'to');
146
147  // add id to message list table if not specified
148  if (!strlen($attrib['id']))
149    $attrib['id'] = 'rcubemessagelist';
150
151  // define list of cols to be displayed based on parameter or config
152  if (empty($attrib['columns'])) {
153    $a_show_cols = is_array($CONFIG['list_cols']) ? $CONFIG['list_cols'] : array('subject');
154    $OUTPUT->set_env('col_movable', !in_array('list_cols', (array)$CONFIG['dont_override']));
155  }
156  else {
157    $a_show_cols = preg_split('/[\s,;]+/', strip_quotes($attrib['columns']));
158    $attrib['columns'] = $a_show_cols;
159  }
160
161  // save some variables for use in ajax list
162  $_SESSION['list_attrib'] = $attrib;
163
164  $mbox = $IMAP->get_mailbox_name();
165  $delim = $IMAP->get_hierarchy_delimiter();
166
167  // show 'to' instead of 'from' in sent/draft messages
168  if ((strpos($mbox.$delim, $CONFIG['sent_mbox'].$delim)===0 || strpos($mbox.$delim, $CONFIG['drafts_mbox'].$delim)===0)
169      && (($f = array_search('from', $a_show_cols)) !== false) && array_search('to', $a_show_cols) === false)
170    $a_show_cols[$f] = 'to';
171
172  // make sure 'threads' and 'subject' columns are present
173  if (!in_array('subject', $a_show_cols))
174    array_unshift($a_show_cols, 'subject');
175  if (!in_array('threads', $a_show_cols))
176    array_unshift($a_show_cols, 'threads');
177
178  $skin_path = $_SESSION['skin_path'] = $CONFIG['skin_path'];
179
180  // set client env
181  $OUTPUT->add_gui_object('messagelist', $attrib['id']);
182  $OUTPUT->set_env('autoexpand_threads', intval($CONFIG['autoexpand_threads']));
183  $OUTPUT->set_env('sort_col', $_SESSION['sort_col']);
184  $OUTPUT->set_env('sort_order', $_SESSION['sort_order']);
185  $OUTPUT->set_env('messages', array());
186  $OUTPUT->set_env('coltypes', $a_show_cols);
187
188  $OUTPUT->include_script('list.js');
189
190  $thead = '';
191  foreach (rcmail_message_list_head($attrib, $a_show_cols) as $cell)
192    $thead .= html::tag('td', array('class' => $cell['className'], 'id' => $cell['id']), $cell['html']);
193
194  return html::tag('table',
195    $attrib,
196    html::tag('thead', null, html::tag('tr', null, $thead)) .
197      html::tag('tbody', null, ''),
198        array('style', 'class', 'id', 'cellpadding', 'cellspacing', 'border', 'summary'));
199}
200
201
202/**
203 * return javascript commands to add rows to the message list
204 */
205function rcmail_js_message_list($a_headers, $insert_top=FALSE, $a_show_cols=null)
206{
207  global $CONFIG, $IMAP, $RCMAIL, $OUTPUT;
208
209  if (empty($a_show_cols)) {
210    if (!empty($_SESSION['list_attrib']['columns']))
211      $a_show_cols = $_SESSION['list_attrib']['columns'];
212    else
213      $a_show_cols = is_array($CONFIG['list_cols']) ? $CONFIG['list_cols'] : array('subject');
214  }
215  else {
216    if (!is_array($a_show_cols))
217      $a_show_cols = preg_split('/[\s,;]+/', strip_quotes($a_show_cols));
218    $head_replace = true;
219  }
220
221  $mbox = $IMAP->get_mailbox_name();
222  $delim = $IMAP->get_hierarchy_delimiter();
223
224  // make sure 'threads' and 'subject' columns are present
225  if (!in_array('subject', $a_show_cols))
226    array_unshift($a_show_cols, 'subject');
227  if (!in_array('threads', $a_show_cols))
228    array_unshift($a_show_cols, 'threads');
229
230  $_SESSION['list_attrib']['columns'] = $a_show_cols;
231
232  // show 'to' instead of 'from' in sent/draft messages
233  if ((strpos($mbox.$delim, $CONFIG['sent_mbox'].$delim)===0 || strpos($mbox.$delim, $CONFIG['drafts_mbox'].$delim)===0)
234      && (($f = array_search('from', $a_show_cols)) !== false) && array_search('to', $a_show_cols) === false)
235    $a_show_cols[$f] = 'to';
236
237  // Make sure there are no duplicated columns (#1486999)
238  $a_show_cols = array_unique($a_show_cols);
239
240  // Plugins may set header's list_cols/list_flags and other rcube_mail_header variables
241  // and list columns
242  $plugin = $RCMAIL->plugins->exec_hook('messages_list',
243    array('messages' => $a_headers, 'cols' => $a_show_cols));
244
245  $a_show_cols = $plugin['cols'];
246  $a_headers   = $plugin['messages'];
247
248  $thead = $head_replace ? rcmail_message_list_head($_SESSION['list_attrib'], $a_show_cols) : NULL;
249
250  $OUTPUT->command('set_message_coltypes', $a_show_cols, $thead);
251
252  if (empty($a_headers))
253    return;
254
255  // remove 'threads', 'attachment', 'flag', 'status' columns, we don't need them here
256  foreach (array('threads', 'attachment', 'flag', 'status') as $col) {
257    if (($key = array_search($col, $a_show_cols)) !== FALSE)
258      unset($a_show_cols[$key]);
259  }
260
261  // loop through message headers
262  foreach ($a_headers as $n => $header) {
263    if (empty($header))
264      continue;
265
266    $a_msg_cols = array();
267    $a_msg_flags = array();
268
269    $IMAP->set_charset(!empty($header->charset) ? $header->charset : $CONFIG['default_charset']);
270
271    // format each col; similar as in rcmail_message_list()
272    foreach ($a_show_cols as $col) {
273      if (in_array($col, array('from', 'to', 'cc', 'replyto')))
274        $cont = Q(rcmail_address_string($header->$col, 3), 'show');
275      else if ($col=='subject') {
276        $cont = trim($IMAP->decode_header($header->$col));
277        if (!$cont) $cont = rcube_label('nosubject');
278        $cont = Q($cont);
279      }
280      else if ($col=='size')
281        $cont = show_bytes($header->$col);
282      else if ($col=='date')
283        $cont = format_date($header->date);
284      else
285        $cont = Q($header->$col);
286
287      $a_msg_cols[$col] = $cont;
288    }
289
290    if ($header->depth)
291      $a_msg_flags['depth'] = $header->depth;
292    else if ($header->has_children)
293      $roots[] = $header->uid;
294    if ($header->parent_uid)
295      $a_msg_flags['parent_uid'] = $header->parent_uid;
296    if ($header->has_children)
297      $a_msg_flags['has_children'] = $header->has_children;
298    if ($header->unread_children)
299      $a_msg_flags['unread_children'] = $header->unread_children;
300    if ($header->deleted)
301      $a_msg_flags['deleted'] = 1;
302    if (!$header->seen)
303      $a_msg_flags['unread'] = 1;
304    if ($header->answered)
305      $a_msg_flags['replied'] = 1;
306    if ($header->forwarded)
307      $a_msg_flags['forwarded'] = 1;
308    if ($header->flagged)
309      $a_msg_flags['flagged'] = 1;
310    if ($header->others['list-post'])
311      $a_msg_flags['ml'] = 1;
312
313    $a_msg_flags['ctype'] = Q($header->ctype);
314    $a_msg_flags['mbox'] = $mbox;
315
316    // merge with plugin result
317    if (!empty($header->list_flags) && is_array($header->list_flags))
318      $a_msg_flags = array_merge($a_msg_flags, $header->list_flags);
319    if (!empty($header->list_cols) && is_array($header->list_cols))
320      $a_msg_cols = array_merge($a_msg_cols, $header->list_cols);
321
322    $OUTPUT->command('add_message_row',
323      $header->uid,
324      $a_msg_cols,
325      $a_msg_flags,
326      $insert_top);
327  }
328
329  if ($IMAP->threading) {
330    $OUTPUT->command('init_threads', (array) $roots);
331  }
332}
333
334
335/*
336 * Creates <THEAD> for message list table
337 */
338function rcmail_message_list_head($attrib, $a_show_cols)
339{
340  global $CONFIG;
341
342  $skin_path = $_SESSION['skin_path'];
343  $image_tag = html::img(array('src' => "%s%s", 'alt' => "%s"));
344
345  // check to see if we have some settings for sorting
346  $sort_col   = $_SESSION['sort_col'];
347  $sort_order = $_SESSION['sort_order'];
348
349  // define sortable columns
350  $a_sort_cols = array('subject', 'date', 'from', 'to', 'size', 'cc');
351
352  if (!empty($attrib['optionsmenuicon'])) {
353    $onclick = 'return ' . JS_OBJECT_NAME . ".command('menu-open', 'messagelistmenu')";
354    if ($attrib['optionsmenuicon'] === true || $attrib['optionsmenuicon'] == 'true')
355      $list_menu = html::div(array('onclick' => $onclick, 'class' => 'listmenu',
356        'id' => 'listmenulink', 'title' => rcube_label('listoptions')));
357    else
358      $list_menu = html::a(array('href' => '#', 'onclick' => $onclick),
359        html::img(array('src' => $skin_path . $attrib['optionsmenuicon'],
360          'id' => 'listmenulink', 'title' => rcube_label('listoptions')))
361      );
362  }
363  else
364    $list_menu = '';
365
366  $cells = array();
367
368  foreach ($a_show_cols as $col) {
369    // get column name
370    switch ($col) {
371      case 'flag':
372        $col_name = '<span class="flagged">&nbsp;</span>';
373        break;
374      case 'attachment':
375      case 'status':
376        $col_name = '<span class="' . $col .'">&nbsp;</span>';
377        break;
378      case 'threads':
379        $col_name = $list_menu;
380        break;
381      default:
382        $col_name = Q(rcube_label($col));
383    }
384
385    // make sort links
386    if (in_array($col, $a_sort_cols))
387      $col_name = html::a(array('href'=>"./#sort", 'onclick' => 'return '.JS_OBJECT_NAME.".command('sort','".$col."',this)", 'title' => rcube_label('sortby')), $col_name);
388
389    $sort_class = $col == $sort_col ? " sorted$sort_order" : '';
390    $class_name = $col.$sort_class;
391
392    // put it all together
393    $cells[] = array('className' => $class_name, 'id' => "rcm$col", 'html' => $col_name);
394  }
395
396  return $cells;
397}
398
399
400/**
401 * return an HTML iframe for loading mail content
402 */
403function rcmail_messagecontent_frame($attrib)
404  {
405  global $OUTPUT, $RCMAIL;
406
407  if (empty($attrib['id']))
408    $attrib['id'] = 'rcmailcontentwindow';
409
410  $attrib['name'] = $attrib['id'];
411
412  if ($RCMAIL->config->get('preview_pane'))
413    $OUTPUT->set_env('contentframe', $attrib['id']);
414  $OUTPUT->set_env('blankpage', $attrib['src'] ? $OUTPUT->abs_url($attrib['src']) : 'program/blank.gif');
415
416  return html::iframe($attrib);
417  }
418
419
420function rcmail_messagecount_display($attrib)
421  {
422  global $RCMAIL;
423
424  if (!$attrib['id'])
425    $attrib['id'] = 'rcmcountdisplay';
426
427  $RCMAIL->output->add_gui_object('countdisplay', $attrib['id']);
428
429  $content =  $RCMAIL->action != 'show' ? rcmail_get_messagecount_text() : rcube_label('loading');
430
431  return html::span($attrib, $content);
432  }
433
434
435function rcmail_get_messagecount_text($count=NULL, $page=NULL)
436  {
437  global $RCMAIL, $IMAP;
438
439  if ($page===NULL)
440    $page = $IMAP->list_page;
441
442  $start_msg = ($page-1) * $IMAP->page_size + 1;
443
444  if ($count!==NULL)
445    $max = $count;
446  else if ($RCMAIL->action)
447    $max = $IMAP->messagecount(NULL, $IMAP->threading ? 'THREADS' : 'ALL');
448
449  if ($max==0)
450    $out = rcube_label('mailboxempty');
451  else
452    $out = rcube_label(array('name' => $IMAP->threading ? 'threadsfromto' : 'messagesfromto',
453            'vars' => array('from'  => $start_msg,
454            'to'    => min($max, $start_msg + $IMAP->page_size - 1),
455            'count' => $max)));
456
457  return Q($out);
458  }
459
460
461function rcmail_mailbox_name_display($attrib)
462{
463  global $RCMAIL;
464
465  if (!$attrib['id'])
466    $attrib['id'] = 'rcmmailboxname';
467
468  $RCMAIL->output->add_gui_object('mailboxname', $attrib['id']);
469
470  return html::span($attrib, rcmail_get_mailbox_name_text());
471}
472
473
474function rcmail_get_mailbox_name_text()
475{
476  global $RCMAIL;
477  return rcmail_localize_foldername($RCMAIL->imap->get_mailbox_name());
478}
479
480
481function rcmail_send_unread_count($mbox_name, $force=false, $count=null)
482{
483  global $RCMAIL;
484
485  $old_unseen = rcmail_get_unseen_count($mbox_name);
486
487  if ($count === null)
488    $unseen = $RCMAIL->imap->messagecount($mbox_name, 'UNSEEN', $force);
489  else
490    $unseen = $count;
491
492  if ($unseen != $old_unseen || ($mbox_name == 'INBOX'))
493    $RCMAIL->output->command('set_unread_count', $mbox_name, $unseen, ($mbox_name == 'INBOX'));
494
495  rcmail_set_unseen_count($mbox_name, $unseen);
496
497  return $unseen;
498}
499
500
501function rcmail_set_unseen_count($mbox_name, $count)
502{
503  // @TODO: this data is doubled (session and cache tables) if caching is enabled
504
505  // Make sure we have an array here (#1487066)
506  if (!is_array($_SESSION['unseen_count']))
507    $_SESSION['unseen_count'] = array();
508
509  $_SESSION['unseen_count'][$mbox_name] = $count;
510}
511
512
513function rcmail_get_unseen_count($mbox_name)
514{
515  if (is_array($_SESSION['unseen_count']) && array_key_exists($mbox_name, $_SESSION['unseen_count']))
516    return $_SESSION['unseen_count'][$mbox_name];
517  else
518    return null;
519}
520
521
522/**
523 * Sets message is_safe flag according to 'show_images' option value
524 *
525 * @param object rcube_message Message
526 */
527function rcmail_check_safe(&$message)
528{
529  global $RCMAIL;
530
531  $show_images = $RCMAIL->config->get('show_images');
532  if (!$message->is_safe
533    && !empty($show_images)
534    && $message->has_html_part())
535  {
536    switch($show_images) {
537      case '1': // known senders only
538        $CONTACTS = new rcube_contacts($RCMAIL->db, $_SESSION['user_id']);
539        if ($CONTACTS->search('email', $message->sender['mailto'], true, false)->count) {
540          $message->set_safe(true);
541        }
542      break;
543      case '2': // always
544        $message->set_safe(true);
545      break;
546    }
547  }
548}
549
550
551/**
552 * Cleans up the given message HTML Body (for displaying)
553 *
554 * @param string HTML
555 * @param array  Display parameters
556 * @param array  CID map replaces (inline images)
557 * @return string Clean HTML
558 */
559function rcmail_wash_html($html, $p = array(), $cid_replaces)
560{
561  global $REMOTE_OBJECTS;
562
563  $p += array('safe' => false, 'inline_html' => true);
564
565  // special replacements (not properly handled by washtml class)
566  $html_search = array(
567    '/(<\/nobr>)(\s+)(<nobr>)/i',       // space(s) between <NOBR>
568    '/<title[^>]*>.*<\/title>/i',       // PHP bug #32547 workaround: remove title tag
569    '/^(\0\0\xFE\xFF|\xFF\xFE\0\0|\xFE\xFF|\xFF\xFE|\xEF\xBB\xBF)/',    // byte-order mark (only outlook?)
570    '/<html\s[^>]+>/i',                 // washtml/DOMDocument cannot handle xml namespaces
571  );
572  $html_replace = array(
573    '\\1'.' &nbsp; '.'\\3',
574    '',
575    '',
576    '<html>',
577  );
578  $html = preg_replace($html_search, $html_replace, $html);
579
580  // PCRE errors handling (#1486856), should we use something like for every preg_* use?
581  if ($html === null && ($preg_error = preg_last_error()) != PREG_NO_ERROR) {
582    $errstr = "Could not clean up HTML message! PCRE Error: $preg_error.";
583
584    if ($preg_error == PREG_BACKTRACK_LIMIT_ERROR)
585      $errstr .= " Consider raising pcre.backtrack_limit!";
586    if ($preg_error == PREG_RECURSION_LIMIT_ERROR)
587      $errstr .= " Consider raising pcre.recursion_limit!";
588
589    raise_error(array('code' => 600, 'type' => 'php',
590        'line' => __LINE__, 'file' => __FILE__,
591        'message' => $errstr), true, false);
592    return '';
593  }
594
595  // fix (unknown/malformed) HTML tags before "wash"
596  $html = preg_replace_callback('/(<[\/]*)([^\s>]+)/', 'rcmail_html_tag_callback', $html);
597
598  // charset was converted to UTF-8 in rcube_imap::get_message_part(),
599  // -> change charset specification in HTML accordingly
600  $charset_pattern = '(<meta\s+[^>]*content=)[\'"]?(\w+\/\w+;\s*charset=)([a-z0-9-_]+[\'"]?)';
601  if (preg_match("/$charset_pattern/Ui", $html)) {
602    $html = preg_replace("/$charset_pattern/i", '\\1"\\2'.RCMAIL_CHARSET.'"', $html);
603  }
604  else {
605    // add meta content-type to malformed messages, washtml cannot work without that
606    if (!preg_match('/<head[^>]*>(.*)<\/head>/Uims', $html))
607      $html = '<head></head>'. $html;
608    $html = substr_replace($html, '<meta http-equiv="Content-Type" content="text/html; charset='.RCMAIL_CHARSET.'" />', intval(stripos($html, '<head>')+6), 0);
609  }
610  // turn relative into absolute urls
611  $html = rcmail_resolve_base($html);
612
613  // clean HTML with washhtml by Frederic Motte
614  $wash_opts = array(
615    'show_washed' => false,
616    'allow_remote' => $p['safe'],
617    'blocked_src' => "./program/blocked.gif",
618    'charset' => RCMAIL_CHARSET,
619    'cid_map' => $cid_replaces,
620    'html_elements' => array('body'),
621  );
622
623  if (!$p['inline_html']) {
624    $wash_opts['html_elements'] = array('html','head','title','body');
625  }
626  if ($p['safe']) {
627    $wash_opts['html_elements'][] = 'link';
628    $wash_opts['html_attribs'] = array('rel','type');
629  }
630
631  // overwrite washer options with options from plugins
632  if (isset($p['html_elements']))
633    $wash_opts['html_elements'] = $p['html_elements'];
634  if (isset($p['html_attribs']))
635    $wash_opts['html_attribs'] = $p['html_attribs'];
636
637  // initialize HTML washer
638  $washer = new washtml($wash_opts);
639
640  if (!$p['skip_washer_form_callback'])
641    $washer->add_callback('form', 'rcmail_washtml_callback');
642
643  // allow CSS styles, will be sanitized by rcmail_washtml_callback()
644  if (!$p['skip_washer_style_callback'])
645    $washer->add_callback('style', 'rcmail_washtml_callback');
646
647  $html = $washer->wash($html);
648  $REMOTE_OBJECTS = $washer->extlinks;
649
650  return $html;
651}
652
653
654/**
655 * Convert the given message part to proper HTML
656 * which can be displayed the message view
657 *
658 * @param object rcube_message_part Message part
659 * @param array  Display parameters array
660 * @return string Formatted HTML string
661 */
662function rcmail_print_body($part, $p = array())
663{
664  global $RCMAIL;
665
666  // trigger plugin hook
667  $data = $RCMAIL->plugins->exec_hook('message_part_before',
668    array('type' => $part->ctype_secondary, 'body' => $part->body, 'id' => $part->mime_id)
669        + $p + array('safe' => false, 'plain' => false, 'inline_html' => true));
670
671  // convert html to text/plain
672  if ($data['type'] == 'html' && $data['plain']) {
673    $txt = new html2text($data['body'], false, true);
674    $body = $txt->get_text();
675    $part->ctype_secondary = 'plain';
676  }
677  // text/html
678  else if ($data['type'] == 'html') {
679    $body = rcmail_wash_html($data['body'], $data, $part->replaces);
680    $part->ctype_secondary = $data['type'];
681  }
682  // text/enriched
683  else if ($data['type'] == 'enriched') {
684    $part->ctype_secondary = 'html';
685    require_once('lib/enriched.inc');
686    $body = Q(enriched_to_html($data['body']), 'show');
687  }
688  else {
689    // assert plaintext
690    $body = $part->body;
691    $part->ctype_secondary = $data['type'] = 'plain';
692  }
693
694  // free some memory (hopefully)
695  unset($data['body']);
696
697  // plaintext postprocessing
698  if ($part->ctype_secondary == 'plain')
699    $body = rcmail_plain_body($body, $part->ctype_parameters['format'] == 'flowed');
700
701  // allow post-processing of the message body
702  $data = $RCMAIL->plugins->exec_hook('message_part_after',
703    array('type' => $part->ctype_secondary, 'body' => $body, 'id' => $part->mime_id) + $data);
704
705  return $data['type'] == 'html' ? $data['body'] : html::tag('pre', array(), $data['body']);
706}
707
708
709/**
710 * Handle links and citation marks in plain text message
711 *
712 * @param string  Plain text string
713 * @param boolean Text uses format=flowed
714 *
715 * @return string Formatted HTML string
716 */
717function rcmail_plain_body($body, $flowed=false)
718{
719  global $RCMAIL;
720
721  // make links and email-addresses clickable
722  $replacer = new rcube_string_replacer;
723
724  // search for patterns like links and e-mail addresses
725  $body = preg_replace_callback($replacer->link_pattern, array($replacer, 'link_callback'), $body);
726  $body = preg_replace_callback($replacer->mailto_pattern, array($replacer, 'mailto_callback'), $body);
727
728  // split body into single lines
729  $a_lines = preg_split('/\r?\n/', $body);
730  $quote_level = 0;
731  $last = -1;
732
733  // find/mark quoted lines...
734  for ($n=0, $cnt=count($a_lines); $n < $cnt; $n++) {
735    if ($a_lines[$n][0] == '>' && preg_match('/^(>+\s*)+/', $a_lines[$n], $regs)) {
736      $q = strlen(preg_replace('/\s/', '', $regs[0]));
737      $a_lines[$n] = substr($a_lines[$n], strlen($regs[0]));
738
739      if ($q > $quote_level)
740        $a_lines[$n] = $replacer->get_replacement($replacer->add(
741          str_repeat('<blockquote>', $q - $quote_level))) . $a_lines[$n];
742      else if ($q < $quote_level)
743        $a_lines[$n] = $replacer->get_replacement($replacer->add(
744          str_repeat('</blockquote>', $quote_level - $q))) . $a_lines[$n];
745      else if ($flowed) {
746        // previous line is flowed
747        if (isset($a_lines[$last]) && $a_lines[$n]
748          && $a_lines[$last][strlen($a_lines[$last])-1] == ' ') {
749          // merge lines
750          $a_lines[$last] .= $a_lines[$n];
751          unset($a_lines[$n]);
752        }
753        else
754          $last = $n;
755      }
756    }
757    else {
758      $q = 0;
759      if ($flowed) {
760        // sig separator - line is fixed
761        if ($a_lines[$n] == '-- ') {
762          $last = $n;
763        }
764        else {
765          // remove space-stuffing
766          if ($a_lines[$n][0] == ' ')
767            $a_lines[$n] = substr($a_lines[$n], 1);
768
769          // previous line is flowed?
770          if (isset($a_lines[$last]) && $a_lines[$n]
771            && $a_lines[$last] != '-- '
772            && $a_lines[$last][strlen($a_lines[$last])-1] == ' '
773          ) {
774            $a_lines[$last] .= $a_lines[$n];
775            unset($a_lines[$n]);
776          }
777          else {
778            $last = $n;
779          }
780        }
781        if ($quote_level > 0)
782          $a_lines[$last] = $replacer->get_replacement($replacer->add(
783            str_repeat('</blockquote>', $quote_level))) . $a_lines[$last];
784      }
785      else if ($quote_level > 0)
786        $a_lines[$n] = $replacer->get_replacement($replacer->add(
787          str_repeat('</blockquote>', $quote_level))) . $a_lines[$n];
788    }
789
790    $quote_level = $q;
791  }
792
793  $body = join("\n", $a_lines);
794
795  // quote plain text (don't use Q() here, to display entities "as is")
796  $table = get_html_translation_table(HTML_SPECIALCHARS);
797  unset($table['?']);
798  $body = strtr($body, $table);
799
800  // colorize signature (up to <sig_max_lines> lines)
801  $len = strlen($body);
802  $sig_max_lines = $RCMAIL->config->get('sig_max_lines', 15);
803  while (($sp = strrpos($body, "-- \n", $sp ? -$len+$sp-1 : 0)) !== false) {
804    if ($sp == 0 || $body[$sp-1] == "\n") {
805      // do not touch blocks with more that X lines
806      if (substr_count($body, "\n", $sp) < $sig_max_lines)
807        $body = substr($body, 0, max(0, $sp))
808          .'<span class="sig">'.substr($body, $sp).'</span>';
809      break;
810    }
811  }
812
813  // insert url/mailto links and citation tags
814  $body = $replacer->resolve($body);
815
816  return $body;
817}
818
819
820/**
821 * Callback function for washtml cleaning class
822 */
823function rcmail_washtml_callback($tagname, $attrib, $content)
824{
825  switch ($tagname) {
826    case 'form':
827      $out = html::div('form', $content);
828      break;
829
830    case 'style':
831      // decode all escaped entities and reduce to ascii strings
832      $stripped = preg_replace('/[^a-zA-Z\(:;]/', '', rcmail_xss_entity_decode($content));
833
834      // now check for evil strings like expression, behavior or url()
835      if (!preg_match('/expression|behavior|url\(|import[^a]/', $stripped)) {
836        $out = html::tag('style', array('type' => 'text/css'), $content);
837        break;
838      }
839
840    default:
841      $out = '';
842  }
843
844  return $out;
845}
846
847
848/**
849 * Callback function for HTML tags fixing
850 */
851function rcmail_html_tag_callback($matches)
852{
853  $tagname = $matches[2];
854
855  $tagname = preg_replace(array(
856    '/:.*$/',                   // Microsoft's Smart Tags <st1:xxxx>
857    '/[^a-z0-9_\[\]\!-]/i',     // forbidden characters
858    ), '', $tagname);
859
860  return $matches[1].$tagname;
861}
862
863
864/**
865 * return table with message headers
866 */
867function rcmail_message_headers($attrib, $headers=NULL)
868  {
869  global $IMAP, $OUTPUT, $MESSAGE, $PRINT_MODE, $RCMAIL;
870  static $sa_attrib;
871
872  // keep header table attrib
873  if (is_array($attrib) && !$sa_attrib)
874    $sa_attrib = $attrib;
875  else if (!is_array($attrib) && is_array($sa_attrib))
876    $attrib = $sa_attrib;
877
878  if (!isset($MESSAGE))
879    return FALSE;
880
881  // get associative array of headers object
882  if (!$headers)
883    $headers = is_object($MESSAGE->headers) ? get_object_vars($MESSAGE->headers) : $MESSAGE->headers;
884
885  // show these headers
886  $standard_headers = array('subject', 'from', 'to', 'cc', 'bcc', 'replyto',
887    'mail-reply-to', 'mail-followup-to', 'date');
888  $output_headers = array();
889
890  foreach ($standard_headers as $hkey) {
891    if ($headers[$hkey])
892      $value = $headers[$hkey];
893    else if ($headers['others'][$hkey])
894      $value = $headers['others'][$hkey];
895    else
896      continue;
897
898    if ($hkey == 'date') {
899      if ($PRINT_MODE)
900        $header_value = format_date($value, $RCMAIL->config->get('date_long', 'x'));
901      else
902        $header_value = format_date($value);
903    }
904    else if ($hkey == 'replyto') {
905      if ($headers['replyto'] != $headers['from'])
906        $header_value = rcmail_address_string($value, null, true, $attrib['addicon']);
907      else
908        continue;
909    }
910    else if ($hkey == 'mail-reply-to') {
911      if ($headers['mail-replyto'] != $headers['reply-to']
912        && $headers['reply-to'] != $headers['from']
913      )
914        $header_value = rcmail_address_string($value, null, true, $attrib['addicon']);
915      else
916        continue;
917    }
918    else if ($hkey == 'mail-followup-to') {
919      $header_value = rcmail_address_string($value, null, true, $attrib['addicon']);
920    }
921    else if (in_array($hkey, array('from', 'to', 'cc', 'bcc')))
922      $header_value = rcmail_address_string($value, null, true, $attrib['addicon']);
923    else if ($hkey == 'subject' && empty($value))
924      $header_value = rcube_label('nosubject');
925    else
926      $header_value = trim($IMAP->decode_header($value));
927
928    $output_headers[$hkey] = array(
929        'title' => rcube_label(preg_replace('/(^mail-|-)/', '', $hkey)),
930        'value' => $header_value, 'raw' => $value
931    );
932  }
933
934  $plugin = $RCMAIL->plugins->exec_hook('message_headers_output',
935    array('output' => $output_headers, 'headers' => $MESSAGE->headers));
936
937  // compose html table
938  $table = new html_table(array('cols' => 2));
939
940  foreach ($plugin['output'] as $hkey => $row) {
941    $table->add(array('class' => 'header-title'), Q($row['title']));
942    $table->add(array('class' => 'header '.$hkey), Q($row['value'], ($hkey == 'subject' ? 'strict' : 'show')));
943  }
944
945  return $table->show($attrib);
946}
947
948
949/**
950 * return block to show full message headers
951 */
952function rcmail_message_full_headers($attrib, $headers=NULL)
953{
954  global $OUTPUT;
955 
956  $html = html::div(array('class' => "more-headers show-headers", 'onclick' => "return ".JS_OBJECT_NAME.".command('load-headers','',this)"), '');
957  $html .= html::div(array('id' => "all-headers", 'class' => "all", 'style' => 'display:none'), html::div(array('id' => 'headers-source'), ''));
958 
959  $OUTPUT->add_gui_object('all_headers_row', 'all-headers');
960  $OUTPUT->add_gui_object('all_headers_box', 'headers-source');
961 
962  return html::div($attrib, $html);
963}
964
965
966/**
967 * Handler for the 'messagebody' GUI object
968 *
969 * @param array Named parameters
970 * @return string HTML content showing the message body
971 */
972function rcmail_message_body($attrib)
973  {
974  global $CONFIG, $OUTPUT, $MESSAGE, $IMAP, $RCMAIL, $REMOTE_OBJECTS;
975
976  if (!is_array($MESSAGE->parts) && empty($MESSAGE->body))
977    return '';
978
979  if (!$attrib['id'])
980    $attrib['id'] = 'rcmailMsgBody';
981
982  $safe_mode = $MESSAGE->is_safe || intval($_GET['_safe']);
983  $out = '';
984
985  $header_attrib = array();
986  foreach ($attrib as $attr => $value)
987    if (preg_match('/^headertable([a-z]+)$/i', $attr, $regs))
988      $header_attrib[$regs[1]] = $value;
989
990  if (!empty($MESSAGE->parts))
991    {
992    foreach ($MESSAGE->parts as $i => $part)
993      {
994      if ($part->type == 'headers')
995        $out .= rcmail_message_headers(sizeof($header_attrib) ? $header_attrib : NULL, $part->headers);
996      else if ($part->type == 'content' && $part->size)
997        {
998        if (empty($part->ctype_parameters) || empty($part->ctype_parameters['charset']))
999          $part->ctype_parameters['charset'] = $MESSAGE->headers->charset;
1000
1001        // fetch part if not available
1002        if (!isset($part->body))
1003          $part->body = $MESSAGE->get_part_content($part->mime_id);
1004
1005        // message is cached but not exists (#1485443), or other error
1006        if ($part->body === false) {
1007          rcmail_message_error($MESSAGE->uid);
1008        }
1009
1010        $plugin = $RCMAIL->plugins->exec_hook('message_body_prefix', array(
1011          'part' => $part, 'prefix' => ''));
1012
1013        $body = rcmail_print_body($part, array('safe' => $safe_mode, 'plain' => !$CONFIG['prefer_html']));
1014
1015        if ($part->ctype_secondary == 'html') {
1016          $body = rcmail_html4inline($body, $attrib['id'], 'rcmBody', $attrs);
1017          $div_attr = array('class' => 'message-htmlpart');
1018          $style = array();
1019
1020          if (!empty($attrs)) {
1021            foreach ($attrs as $a_idx => $a_val)
1022              $style[] = $a_idx . ': ' . $a_val;
1023            if (!empty($style))
1024              $div_attr['style'] = implode('; ', $style);
1025          }
1026
1027          $out .= html::div($div_attr, $plugin['prefix'] . $body);
1028        }
1029        else
1030          $out .= html::div('message-part', $plugin['prefix'] . $body);
1031        }
1032      }
1033    }
1034  else {
1035    $plugin = $RCMAIL->plugins->exec_hook('message_body_prefix', array(
1036      'part' => $MESSAGE, 'prefix' => ''));
1037
1038    $out .= html::div('message-part', $plugin['prefix'] . html::tag('pre', array(),
1039      rcmail_plain_body(Q($MESSAGE->body, 'strict', false))));
1040    }
1041
1042  $ctype_primary = strtolower($MESSAGE->structure->ctype_primary);
1043  $ctype_secondary = strtolower($MESSAGE->structure->ctype_secondary);
1044
1045  // list images after mail body
1046  if ($CONFIG['inline_images']
1047      && $ctype_primary == 'multipart'
1048      && !empty($MESSAGE->attachments))
1049    {
1050    foreach ($MESSAGE->attachments as $attach_prop) {
1051      // Content-Type: image/*...
1052      if (preg_match('/^image\//i', $attach_prop->mimetype) ||
1053        // ...or known file extension: many clients are using application/octet-stream
1054        ($attach_prop->filename &&
1055          preg_match('/^application\/octet-stream$/i', $attach_prop->mimetype) &&
1056          preg_match('/\.(jpg|jpeg|png|gif|bmp)$/i', $attach_prop->filename))
1057      ) {
1058        $out .= html::tag('hr') . html::p(array('align' => "center"),
1059          html::img(array(
1060            'src' => $MESSAGE->get_part_url($attach_prop->mime_id),
1061            'title' => $attach_prop->filename,
1062            'alt' => $attach_prop->filename,
1063          )));
1064        }
1065    }
1066  }
1067
1068  // tell client that there are blocked remote objects
1069  if ($REMOTE_OBJECTS && !$safe_mode)
1070    $OUTPUT->set_env('blockedobjects', true);
1071
1072  return html::div($attrib, $out);
1073  }
1074
1075
1076/**
1077 * Convert all relative URLs according to a <base> in HTML
1078 */
1079function rcmail_resolve_base($body)
1080{
1081  // check for <base href=...>
1082  if (preg_match('!(<base.*href=["\']?)([hftps]{3,5}://[a-z0-9/.%-]+)!i', $body, $regs)) {
1083    $replacer = new rcube_base_replacer($regs[2]);
1084
1085    // replace all relative paths
1086    $body = preg_replace_callback('/(src|background|href)=(["\']?)([\.\/]+[^"\'\s]+)(\2|\s|>)/Ui', array($replacer, 'callback'), $body);
1087    $body = preg_replace_callback('/(url\s*\()(["\']?)([\.\/]+[^"\'\)\s]+)(\2)\)/Ui', array($replacer, 'callback'), $body);
1088  }
1089
1090  return $body;
1091}
1092
1093/**
1094 * modify a HTML message that it can be displayed inside a HTML page
1095 */
1096function rcmail_html4inline($body, $container_id, $body_id='', &$attributes=null)
1097{
1098  $last_style_pos = 0;
1099  $body_lc = strtolower($body);
1100  $cont_id = $container_id.($body_id ? ' div.'.$body_id : '');
1101
1102  // find STYLE tags
1103  while (($pos = strpos($body_lc, '<style', $last_style_pos)) && ($pos2 = strpos($body_lc, '</style>', $pos)))
1104  {
1105    $pos = strpos($body_lc, '>', $pos)+1;
1106
1107    // replace all css definitions with #container [def]
1108    $styles = rcmail_mod_css_styles(
1109      substr($body, $pos, $pos2-$pos), $cont_id);
1110
1111    $body = substr($body, 0, $pos) . $styles . substr($body, $pos2);
1112    $body_lc = strtolower($body);
1113    $last_style_pos = $pos2;
1114  }
1115
1116  // modify HTML links to open a new window if clicked
1117  $GLOBALS['rcmail_html_container_id'] = $container_id;
1118  $body = preg_replace_callback('/<(a|link)\s+([^>]+)>/Ui', 'rcmail_alter_html_link', $body);
1119  unset($GLOBALS['rcmail_html_container_id']);
1120
1121  $body = preg_replace(array(
1122      // add comments arround html and other tags
1123      '/(<!DOCTYPE[^>]*>)/i',
1124      '/(<\?xml[^>]*>)/i',
1125      '/(<\/?html[^>]*>)/i',
1126      '/(<\/?head[^>]*>)/i',
1127      '/(<title[^>]*>.*<\/title>)/Ui',
1128      '/(<\/?meta[^>]*>)/i',
1129      // quote <? of php and xml files that are specified as text/html
1130      '/<\?/',
1131      '/\?>/',
1132      // replace <body> with <div>
1133      '/<body([^>]*)>/i',
1134      '/<\/body>/i',
1135      ),
1136    array(
1137      '<!--\\1-->',
1138      '<!--\\1-->',
1139      '<!--\\1-->',
1140      '<!--\\1-->',
1141      '<!--\\1-->',
1142      '<!--\\1-->',
1143      '&lt;?',
1144      '?&gt;',
1145      '<div class="'.$body_id.'"\\1>',
1146      '</div>',
1147      ),
1148    $body);
1149
1150  $attributes = array();
1151
1152  // Handle body attributes that doesn't play nicely with div elements
1153  $regexp = '/<div class="' . preg_quote($body_id, '/') . '"([^>]*)/';
1154  if (preg_match($regexp, $body, $m)) {
1155    $attrs = $m[0];
1156    // Get bgcolor, we'll set it as background-color of the message container
1157    if ($m[1] && preg_match('/bgcolor=["\']*([a-z0-9#]+)["\']*/', $attrs, $mb)) {
1158      $attributes['background-color'] = $mb[1];
1159      $attrs = preg_replace('/bgcolor=["\']*([a-z0-9#]+)["\']*/', '', $attrs);
1160    }
1161    // Get background, we'll set it as background-image of the message container
1162    if ($m[1] && preg_match('/background=["\']*([^"\'>\s]+)["\']*/', $attrs, $mb)) {
1163      $attributes['background-image'] = 'url('.$mb[1].')';
1164      $attrs = preg_replace('/background=["\']*([^"\'>\s]+)["\']*/', '', $attrs);
1165    }
1166    if (!empty($attributes)) {
1167      $body = preg_replace($regexp, rtrim($attrs), $body, 1);
1168    }
1169
1170    // handle body styles related to background image
1171    if ($attributes['background-image']) {
1172      // get body style
1173      if (preg_match('/#'.preg_quote($cont_id, '/').'\s+\{([^}]+)}/i', $body, $m)) {
1174        // get background related style
1175        if (preg_match_all('/(background-position|background-repeat)\s*:\s*([^;]+);/i', $m[1], $ma, PREG_SET_ORDER)) {
1176          foreach ($ma as $style)
1177            $attributes[$style[1]] = $style[2];
1178        }
1179      }
1180    }
1181  }
1182  // make sure there's 'rcmBody' div, we need it for proper css modification
1183  // its name is hardcoded in rcmail_message_body() also
1184  else {
1185    $body = '<div class="' . $body_id . '">' . $body . '</div>';
1186  }
1187
1188  return $body;
1189}
1190
1191
1192/**
1193 * parse link attributes and set correct target
1194 */
1195function rcmail_alter_html_link($matches)
1196{
1197  global $EMAIL_ADDRESS_PATTERN;
1198
1199  $tag = $matches[1];
1200  $attrib = parse_attrib_string($matches[2]);
1201  $end = '>';
1202
1203  if ($tag == 'link' && preg_match('/^https?:\/\//i', $attrib['href'])) {
1204    $attrib['href'] = "?_task=utils&amp;_action=modcss&amp;u=" . urlencode($attrib['href'])
1205        . "&amp;c=" . urlencode($GLOBALS['rcmail_html_container_id']);
1206    $end = ' />';
1207  }
1208  else if (preg_match('/^mailto:'.$EMAIL_ADDRESS_PATTERN.'(\?[^"\'>]+)?/i', $attrib['href'], $mailto)) {
1209    $attrib['href'] = $mailto[0];
1210    $attrib['onclick'] = sprintf(
1211      "return %s.command('compose','%s',this)",
1212      JS_OBJECT_NAME,
1213      JQ($mailto[1].$mailto[2]));
1214  }
1215  else if (!empty($attrib['href']) && $attrib['href'][0] != '#') {
1216    $attrib['target'] = '_blank';
1217  }
1218
1219  return "<$tag" . html::attrib_string($attrib, array('href','name','target','onclick','id','class','style','title','rel','type','media')) . $end;
1220}
1221
1222
1223/**
1224 * decode address string and re-format it as HTML links
1225 */
1226function rcmail_address_string($input, $max=null, $linked=false, $addicon=null)
1227{
1228  global $IMAP, $RCMAIL, $PRINT_MODE, $CONFIG;
1229  static $got_writable_abook = null;
1230
1231  $a_parts = $IMAP->decode_address_list($input);
1232
1233  if (!sizeof($a_parts))
1234    return $input;
1235
1236  $c = count($a_parts);
1237  $j = 0;
1238  $out = '';
1239
1240  if ($got_writable_abook === null && $books = $RCMAIL->get_address_sources(true)) {
1241    $got_writable_abook = true;
1242  }
1243
1244  foreach ($a_parts as $part) {
1245    $j++;
1246
1247    $name   = $part['name'];
1248    $mailto = $part['mailto'];
1249    $string = $part['string'];
1250
1251    // IDNA ASCII to Unicode
1252    if ($name == $mailto)
1253      $name = idn_to_utf8($name);
1254    if ($string == $mailto)
1255      $string = idn_to_utf8($string);
1256    $mailto = idn_to_utf8($mailto);
1257
1258    if ($PRINT_MODE) {
1259      $out .= sprintf('%s &lt;%s&gt;', Q($name), $mailto);
1260    }
1261    else if (check_email($part['mailto'], false)) {
1262      if ($linked) {
1263        $out .= html::a(array(
1264            'href' => 'mailto:'.$mailto,
1265            'onclick' => sprintf("return %s.command('compose','%s',this)", JS_OBJECT_NAME, JQ($mailto)),
1266            'title' => $mailto,
1267            'class' => "rcmContactAddress",
1268          ),
1269        Q($name ? $name : $mailto));
1270      }
1271      else {
1272        $out .= html::span(array('title' => $mailto, 'class' => "rcmContactAddress"),
1273          Q($name ? $name : $mailto));
1274      }
1275
1276      if ($addicon && $got_writable_abook) {
1277        $out .= '&nbsp;' . html::a(array(
1278            'href' => "#add",
1279            'onclick' => sprintf("return %s.command('add-contact','%s',this)", JS_OBJECT_NAME, urlencode($string)),
1280            'title' => rcube_label('addtoaddressbook'),
1281          ),
1282          html::img(array(
1283            'src' => $CONFIG['skin_path'] . $addicon,
1284            'alt' => "Add contact",
1285          )));
1286      }
1287    }
1288    else {
1289      if ($name)
1290        $out .= Q($name);
1291      if ($mailto)
1292        $out .= (strlen($out) ? ' ' : '') . sprintf('&lt;%s&gt;', Q($mailto));
1293    }
1294
1295    if ($c>$j)
1296      $out .= ','.($max ? '&nbsp;' : ' ');
1297
1298    if ($max && $j==$max && $c>$j) {
1299      $out .= '...';
1300      break;
1301    }
1302  }
1303
1304  return $out;
1305}
1306
1307
1308/**
1309 * Wrap text to a given number of characters per line
1310 * but respect the mail quotation of replies messages (>).
1311 * Finally add another quotation level by prpending the lines
1312 * with >
1313 *
1314 * @param string Text to wrap
1315 * @param int The line width
1316 * @return string The wrapped text
1317 */
1318function rcmail_wrap_and_quote($text, $length = 72)
1319{
1320  // Rebuild the message body with a maximum of $max chars, while keeping quoted message.
1321  $max = min(77, $length + 8);
1322  $lines = preg_split('/\r?\n/', trim($text));
1323  $out = '';
1324
1325  foreach ($lines as $line) {
1326    // don't wrap already quoted lines
1327    if ($line[0] == '>')
1328      $line = '>' . rtrim($line);
1329    else if (mb_strlen($line) > $max) {
1330      $newline = '';
1331      foreach(explode("\n", rc_wordwrap($line, $length - 2)) as $l) {
1332        if (strlen($l))
1333          $newline .= '> ' . $l . "\n";
1334        else
1335          $newline .= ">\n";
1336      }
1337      $line = rtrim($newline);
1338    }
1339    else
1340      $line = '> ' . $line;
1341
1342    // Append the line
1343    $out .= $line . "\n";
1344  }
1345
1346  return $out;
1347}
1348
1349
1350function rcmail_draftinfo_encode($p)
1351{
1352  $parts = array();
1353  foreach ($p as $key => $val)
1354    $parts[] = $key . '=' . ($key == 'folder' ? base64_encode($val) : $val);
1355
1356  return join('; ', $parts);
1357}
1358
1359
1360function rcmail_draftinfo_decode($str)
1361{
1362  $info = array();
1363  foreach (preg_split('/;\s+/', $str) as $part) {
1364    list($key, $val) = explode('=', $part, 2);
1365    if ($key == 'folder')
1366      $val = base64_decode($val);
1367    $info[$key] = $val;
1368  }
1369
1370  return $info;
1371}
1372
1373
1374function rcmail_message_part_controls()
1375{
1376  global $MESSAGE;
1377
1378  $part = asciiwords(get_input_value('_part', RCUBE_INPUT_GPC));
1379  if (!is_object($MESSAGE) || !is_array($MESSAGE->parts) || !($_GET['_uid'] && $_GET['_part']) || !$MESSAGE->mime_parts[$part])
1380    return '';
1381
1382  $part = $MESSAGE->mime_parts[$part];
1383  $table = new html_table(array('cols' => 3));
1384
1385  if (!empty($part->filename)) {
1386    $table->add('title', Q(rcube_label('filename')));
1387    $table->add(null, Q($part->filename));
1388    $table->add(null, '[' . html::a('?'.str_replace('_frame=', '_download=', $_SERVER['QUERY_STRING']), Q(rcube_label('download'))) . ']');
1389  }
1390
1391  if (!empty($part->size)) {
1392    $table->add('title', Q(rcube_label('filesize')));
1393    $table->add(null, Q(show_bytes($part->size)));
1394  }
1395
1396  return $table->show($attrib);
1397}
1398
1399
1400
1401function rcmail_message_part_frame($attrib)
1402{
1403  global $MESSAGE;
1404
1405  $part = $MESSAGE->mime_parts[asciiwords(get_input_value('_part', RCUBE_INPUT_GPC))];
1406  $ctype_primary = strtolower($part->ctype_primary);
1407
1408  $attrib['src'] = './?' . str_replace('_frame=', ($ctype_primary=='text' ? '_show=' : '_preload='), $_SERVER['QUERY_STRING']);
1409
1410  return html::iframe($attrib);
1411}
1412
1413
1414/**
1415 * clear message composing settings
1416 */
1417function rcmail_compose_cleanup()
1418{
1419  if (!isset($_SESSION['compose']))
1420    return;
1421
1422  $rcmail = rcmail::get_instance();
1423  $rcmail->plugins->exec_hook('attachments_cleanup', array());
1424  $rcmail->session->remove('compose');
1425}
1426
1427
1428/**
1429 * Send the given message using the configured method
1430 *
1431 * @param object $message    Reference to Mail_MIME object
1432 * @param string $from       Sender address string
1433 * @param array  $mailto     Array of recipient address strings
1434 * @param array  $smtp_error SMTP error array (reference)
1435 * @param string $body_file  Location of file with saved message body (reference)
1436 * @param array  $smtp_opts  SMTP options (e.g. DSN request)
1437 *
1438 * @return boolean Send status.
1439 */
1440function rcmail_deliver_message(&$message, $from, $mailto, &$smtp_error, &$body_file, $smtp_opts=null)
1441{
1442  global $CONFIG, $RCMAIL;
1443
1444  $headers = $message->headers();
1445
1446  // send thru SMTP server using custom SMTP library
1447  if ($CONFIG['smtp_server']) {
1448    // generate list of recipients
1449    $a_recipients = array($mailto);
1450
1451    if (strlen($headers['Cc']))
1452      $a_recipients[] = $headers['Cc'];
1453    if (strlen($headers['Bcc']))
1454      $a_recipients[] = $headers['Bcc'];
1455
1456    // clean Bcc from header for recipients
1457    $send_headers = $headers;
1458    unset($send_headers['Bcc']);
1459    // here too, it because txtHeaders() below use $message->_headers not only $send_headers
1460    unset($message->_headers['Bcc']);
1461
1462    $smtp_headers = $message->txtHeaders($send_headers, true);
1463
1464    if ($message->getParam('delay_file_io')) {
1465      // use common temp dir
1466      $temp_dir = $RCMAIL->config->get('temp_dir');
1467      $body_file = tempnam($temp_dir, 'rcmMsg');
1468      if (PEAR::isError($mime_result = $message->saveMessageBody($body_file))) {
1469        raise_error(array('code' => 600, 'type' => 'php',
1470            'file' => __FILE__, 'line' => __LINE__,
1471            'message' => "Could not create message: ".$mime_result->getMessage()),
1472            TRUE, FALSE);
1473        return false;
1474      }
1475      $msg_body = fopen($body_file, 'r');
1476    } else {
1477      $msg_body = $message->get();
1478    }
1479
1480    // send message
1481    if (!is_object($RCMAIL->smtp))
1482      $RCMAIL->smtp_init(true);
1483
1484    $sent = $RCMAIL->smtp->send_mail($from, $a_recipients, $smtp_headers, $msg_body, $smtp_opts);
1485    $smtp_response = $RCMAIL->smtp->get_response();
1486    $smtp_error = $RCMAIL->smtp->get_error();
1487
1488    // log error
1489    if (!$sent)
1490      raise_error(array('code' => 800, 'type' => 'smtp', 'line' => __LINE__, 'file' => __FILE__,
1491                        'message' => "SMTP error: ".join("\n", $smtp_response)), TRUE, FALSE);
1492  }
1493  // send mail using PHP's mail() function
1494  else {
1495    // unset some headers because they will be added by the mail() function
1496    $headers_enc = $message->headers($headers);
1497    $headers_php = $message->_headers;
1498    unset($headers_php['To'], $headers_php['Subject']);
1499
1500    // reset stored headers and overwrite
1501    $message->_headers = array();
1502    $header_str = $message->txtHeaders($headers_php);
1503
1504    // #1485779
1505    if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
1506      if (preg_match_all('/<([^@]+@[^>]+)>/', $headers_enc['To'], $m)) {
1507        $headers_enc['To'] = implode(', ', $m[1]);
1508      }
1509    }
1510
1511    $msg_body = $message->get();
1512
1513    if (PEAR::isError($msg_body))
1514      raise_error(array('code' => 600, 'type' => 'php',
1515            'file' => __FILE__, 'line' => __LINE__,
1516            'message' => "Could not create message: ".$msg_body->getMessage()),
1517            TRUE, FALSE);
1518    else {
1519      $delim   = $RCMAIL->config->header_delimiter();
1520      $to      = $headers_enc['To'];
1521      $subject = $headers_enc['Subject'];
1522      $header_str = rtrim($header_str);
1523
1524      if ($delim != "\r\n") {
1525        $header_str = str_replace("\r\n", $delim, $header_str);
1526        $msg_body   = str_replace("\r\n", $delim, $msg_body);
1527        $to         = str_replace("\r\n", $delim, $to);
1528        $subject    = str_replace("\r\n", $delim, $subject);
1529      }
1530
1531      if (ini_get('safe_mode'))
1532        $sent = mail($to, $subject, $msg_body, $header_str);
1533      else
1534        $sent = mail($to, $subject, $msg_body, $header_str, "-f$from");
1535    }
1536  }
1537
1538  if ($sent) {
1539    $RCMAIL->plugins->exec_hook('message_sent', array('headers' => $headers, 'body' => $msg_body));
1540
1541    // remove MDN headers after sending
1542    unset($headers['Return-Receipt-To'], $headers['Disposition-Notification-To']);
1543
1544    // get all recipients
1545    if ($headers['Cc'])
1546      $mailto .= $headers['Cc'];
1547    if ($headers['Bcc'])
1548      $mailto .= $headers['Bcc'];
1549    if (preg_match_all('/<([^@]+@[^>]+)>/', $mailto, $m))
1550      $mailto = implode(', ', array_unique($m[1]));
1551
1552    if ($CONFIG['smtp_log']) {
1553      write_log('sendmail', sprintf("User %s [%s]; Message for %s; %s",
1554        $RCMAIL->user->get_username(),
1555        $_SERVER['REMOTE_ADDR'],
1556        $mailto,
1557        !empty($smtp_response) ? join('; ', $smtp_response) : ''));
1558    }
1559  }
1560
1561  if (is_resource($msg_body)) {
1562    fclose($msg_body);
1563  }
1564
1565  $message->_headers = array();
1566  $message->headers($headers);
1567
1568  return $sent;
1569}
1570
1571/**
1572 * Send the MDN response
1573 *
1574 * @param mixed $message    Original message object (rcube_message) or UID
1575 * @param array $smtp_error SMTP error array (reference)
1576 *
1577 * @return boolean Send status
1578 */
1579function rcmail_send_mdn($message, &$smtp_error)
1580{
1581  global $RCMAIL, $IMAP;
1582
1583  if (!is_a($message, rcube_message))
1584    $message = new rcube_message($message);
1585
1586  if ($message->headers->mdn_to && !$message->headers->mdn_sent &&
1587    ($IMAP->check_permflag('MDNSENT') || $IMAP->check_permflag('*')))
1588  {
1589    $identity = $RCMAIL->user->get_identity();
1590    $sender = format_email_recipient($identity['email'], $identity['name']);
1591    $recipient = array_shift($IMAP->decode_address_list($message->headers->mdn_to));
1592    $mailto = $recipient['mailto'];
1593
1594    $compose = new Mail_mime("\r\n");
1595
1596    $compose->setParam('text_encoding', 'quoted-printable');
1597    $compose->setParam('html_encoding', 'quoted-printable');
1598    $compose->setParam('head_encoding', 'quoted-printable');
1599    $compose->setParam('head_charset', RCMAIL_CHARSET);
1600    $compose->setParam('html_charset', RCMAIL_CHARSET);
1601    $compose->setParam('text_charset', RCMAIL_CHARSET);
1602
1603    // compose headers array
1604    $headers = array(
1605      'Date' => rcmail_user_date(),
1606      'From' => $sender,
1607      'To'   => $message->headers->mdn_to,
1608      'Subject' => rcube_label('receiptread') . ': ' . $message->subject,
1609      'Message-ID' => rcmail_gen_message_id(),
1610      'X-Sender' => $identity['email'],
1611      'References' => trim($message->headers->references . ' ' . $message->headers->messageID),
1612    );
1613
1614    if ($agent = $RCMAIL->config->get('useragent'))
1615      $headers['User-Agent'] = $agent;
1616
1617    $body = rcube_label("yourmessage") . "\r\n\r\n" .
1618      "\t" . rcube_label("to") . ': ' . rcube_imap::decode_mime_string($message->headers->to, $message->headers->charset) . "\r\n" .
1619      "\t" . rcube_label("subject") . ': ' . $message->subject . "\r\n" .
1620      "\t" . rcube_label("sent") . ': ' . format_date($message->headers->date, $RCMAIL->config->get('date_long')) . "\r\n" .
1621      "\r\n" . rcube_label("receiptnote") . "\r\n";
1622
1623    $ua = $RCMAIL->config->get('useragent', "Roundcube Webmail (Version ".RCMAIL_VERSION.")");
1624    $report = "Reporting-UA: $ua\r\n";
1625
1626    if ($message->headers->to)
1627        $report .= "Original-Recipient: {$message->headers->to}\r\n";
1628
1629    $report .= "Final-Recipient: rfc822; {$identity['email']}\r\n" .
1630               "Original-Message-ID: {$message->headers->messageID}\r\n" .
1631               "Disposition: manual-action/MDN-sent-manually; displayed\r\n";
1632
1633    $compose->headers($headers);
1634    $compose->setContentType('multipart/report', array('report-type'=> 'disposition-notification'));
1635    $compose->setTXTBody(rc_wordwrap($body, 75, "\r\n"));
1636    $compose->addAttachment($report, 'message/disposition-notification', 'MDNPart2.txt', false, '7bit', 'inline');
1637
1638    $sent = rcmail_deliver_message($compose, $identity['email'], $mailto, $smtp_error, $body_file);
1639
1640    if ($sent)
1641    {
1642      $IMAP->set_flag($message->uid, 'MDNSENT');
1643      return true;
1644    }
1645  }
1646
1647  return false;
1648}
1649
1650// Returns unique Message-ID
1651function rcmail_gen_message_id()
1652{
1653  global $RCMAIL;
1654
1655  $local_part  = md5(uniqid('rcmail'.mt_rand(),true));
1656  $domain_part = $RCMAIL->user->get_username('domain');
1657
1658  // Try to find FQDN, some spamfilters doesn't like 'localhost' (#1486924)
1659  if (!preg_match('/\.[a-z]+$/i', $domain_part)) {
1660    if (($host = preg_replace('/:[0-9]+$/', '', $_SERVER['HTTP_HOST']))
1661      && preg_match('/\.[a-z]+$/i', $host)) {
1662        $domain_part = $host;
1663    }
1664    else if (($host = preg_replace('/:[0-9]+$/', '', $_SERVER['SERVER_NAME']))
1665      && preg_match('/\.[a-z]+$/i', $host)) {
1666        $domain_part = $host;
1667    }
1668  }
1669
1670  return sprintf('<%s@%s>', $local_part, $domain_part);
1671}
1672
1673// Returns RFC2822 formatted current date in user's timezone
1674function rcmail_user_date()
1675{
1676  global $CONFIG;
1677
1678  // get user's timezone
1679  if ($CONFIG['timezone'] === 'auto') {
1680    $tz = isset($_SESSION['timezone']) ? $_SESSION['timezone'] : date('Z')/3600;
1681  }
1682  else {
1683    $tz = $CONFIG['timezone'];
1684    if ($CONFIG['dst_active'])
1685      $tz++;
1686  }
1687
1688  $date = time() + $tz * 60 * 60;
1689  $date = gmdate('r', $date);
1690  $tz   = sprintf('%+05d', intval($tz) * 100 + ($tz - intval($tz)) * 60);
1691  $date = preg_replace('/[+-][0-9]{4}$/', $tz, $date);
1692
1693  return $date;
1694}
1695
1696// Fixes some content-type names
1697function rcmail_fix_mimetype($name)
1698{
1699  // Some versions of Outlook create garbage Content-Type:
1700  // application/pdf.A520491B_3BF7_494D_8855_7FAC2C6C0608
1701  if (preg_match('/^application\/pdf.+/', $name))
1702    $name = 'application/pdf';
1703
1704  return $name;
1705}
1706
1707function rcmail_search_filter($attrib)
1708{
1709  global $OUTPUT, $CONFIG;
1710
1711  if (!strlen($attrib['id']))
1712    $attrib['id'] = 'rcmlistfilter';
1713
1714  $attrib['onchange'] = JS_OBJECT_NAME.'.filter_mailbox(this.value)';
1715
1716  /*
1717    RFC3501 (6.4.4): 'ALL', 'RECENT',
1718    'ANSWERED', 'DELETED', 'FLAGGED', 'SEEN',
1719    'UNANSWERED', 'UNDELETED', 'UNFLAGGED', 'UNSEEN',
1720    'NEW', // = (RECENT UNSEEN)
1721    'OLD' // = NOT RECENT
1722  */
1723
1724  $select_filter = new html_select($attrib);
1725  $select_filter->add(rcube_label('all'), 'ALL');
1726  $select_filter->add(rcube_label('unread'), 'UNSEEN');
1727  $select_filter->add(rcube_label('flagged'), 'FLAGGED');
1728  $select_filter->add(rcube_label('unanswered'), 'UNANSWERED');
1729  if (!$CONFIG['skip_deleted'])
1730    $select_filter->add(rcube_label('deleted'), 'DELETED');
1731
1732  $out = $select_filter->show($_SESSION['search_filter']);
1733
1734  $OUTPUT->add_gui_object('search_filter', $attrib['id']);
1735
1736  return $out;
1737}
1738
1739function rcmail_message_error($uid=null)
1740{
1741  global $RCMAIL;
1742
1743  // Set env variables for messageerror.html template
1744  if ($RCMAIL->action == 'show') {
1745    $mbox_name = $RCMAIL->imap->get_mailbox_name();
1746    $RCMAIL->output->set_env('mailbox', $mbox_name);
1747    $RCMAIL->output->set_env('uid', null);
1748  }
1749  // display error message
1750  $RCMAIL->output->show_message('messageopenerror', 'error');
1751  // ... display message error page
1752  $RCMAIL->output->send('messageerror');
1753}
1754
1755// register UI objects
1756$OUTPUT->add_handlers(array(
1757  'mailboxlist' => 'rcmail_mailbox_list',
1758  'messages' => 'rcmail_message_list',
1759  'messagecountdisplay' => 'rcmail_messagecount_display',
1760  'quotadisplay' => 'rcmail_quota_display',
1761  'mailboxname' => 'rcmail_mailbox_name_display',
1762  'messageheaders' => 'rcmail_message_headers',
1763  'messagefullheaders' => 'rcmail_message_full_headers',
1764  'messagebody' => 'rcmail_message_body',
1765  'messagecontentframe' => 'rcmail_messagecontent_frame',
1766  'messagepartframe' => 'rcmail_message_part_frame',
1767  'messagepartcontrols' => 'rcmail_message_part_controls',
1768  'searchfilter' => 'rcmail_search_filter',
1769  'searchform' => array($OUTPUT, 'search_form'),
1770));
1771
1772// register action aliases
1773$RCMAIL->register_action_map(array(
1774    'preview' => 'show.inc',
1775    'print'   => 'show.inc',
1776    'moveto'  => 'move_del.inc',
1777    'delete'  => 'move_del.inc',
1778    'send'    => 'sendmail.inc',
1779    'expunge' => 'folders.inc',
1780    'purge'   => 'folders.inc',
1781    'remove-attachment'  => 'attachments.inc',
1782    'display-attachment' => 'attachments.inc',
1783    'upload'             => 'attachments.inc',
1784    'group-expand'       => 'autocomplete.inc',
1785));
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