From ab0b51a1fef87bcc643c3aaf2e635c811b28ccd8 Mon Sep 17 00:00:00 2001
From: alecpl <alec@alec.pl>
Date: Tue, 15 Feb 2011 06:10:59 -0500
Subject: [PATCH] - Use only one from IMAP authentication methods to prevent login delays (1487784)

---
 program/steps/mail/compose.inc |  512 ++++++++++++++++++++++++++++++++------------------------
 1 files changed, 295 insertions(+), 217 deletions(-)

diff --git a/program/steps/mail/compose.inc b/program/steps/mail/compose.inc
index 406033c..41f7b14 100644
--- a/program/steps/mail/compose.inc
+++ b/program/steps/mail/compose.inc
@@ -5,7 +5,7 @@
  | program/steps/mail/compose.inc                                        |
  |                                                                       |
  | This file is part of the Roundcube Webmail client                     |
- | Copyright (C) 2005-2009, Roundcube Dev. - Switzerland                 |
+ | Copyright (C) 2005-2009, The Roundcube Dev Team                       |
  | Licensed under the GNU GPL                                            |
  |                                                                       |
  | PURPOSE:                                                              |
@@ -33,9 +33,17 @@
 // Since there are many ways to leave the compose page improperly, it seems necessary to clean-up an old
 // compose when a "new/forward/reply/draft" is called - otherwise the old session attachments will appear
 
-if (!is_array($_SESSION['compose']) || $_SESSION['compose']['id'] != get_input_value('_id', RCUBE_INPUT_GET))
+$MESSAGE_ID = get_input_value('_id', RCUBE_INPUT_GET);
+if (!is_array($_SESSION['compose']) || $_SESSION['compose']['id'] != $MESSAGE_ID)
 {
   rcmail_compose_cleanup();
+
+  // Infinite redirect prevention in case of broken session (#1487028)
+  if ($MESSAGE_ID)
+    raise_error(array('code' => 500, 'type' => 'php',
+      'file' => __FILE__, 'line' => __LINE__,
+      'message' => "Invalid session"), true, true);
+
   $_SESSION['compose'] = array(
     'id' => uniqid(mt_rand()),
     'param' => request2param(RCUBE_INPUT_GET),
@@ -92,12 +100,8 @@
   }
 
   // check if folder for saving sent messages exists and is subscribed (#1486802)
-  if (($sent_folder = $_SESSION['compose']['param']['sent_mbox']) && !$IMAP->mailbox_exists($sent_folder, true)) {
-    // folder may exist but isn't subscribed (#1485241)
-    if (!$IMAP->mailbox_exists($sent_folder))
-      $IMAP->create_mailbox($sent_folder, true);
-    else
-      $IMAP->subscribe($sent_folder);
+  if ($sent_folder = $_SESSION['compose']['param']['sent_mbox']) {
+    rcmail_check_sent_folder($sent_folder, true);
   }
 
   // redirect to a unique URL with all parameters stored in session
@@ -108,7 +112,8 @@
 // add some labels to client
 $OUTPUT->add_label('nosubject', 'nosenderwarning', 'norecipientwarning', 'nosubjectwarning', 'cancel',
     'nobodywarning', 'notsentwarning', 'notuploadedwarning', 'savingmessage', 'sendingmessage', 
-    'messagesaved', 'converting', 'editorwarning', 'searching', 'uploading', 'fileuploaderror');
+    'messagesaved', 'converting', 'editorwarning', 'searching', 'uploading', 'fileuploaderror',
+    'autocompletechars');
 
 // add config parameters to client script
 if (!empty($CONFIG['drafts_mbox'])) {
@@ -119,6 +124,7 @@
 $OUTPUT->set_env('mailbox', $IMAP->get_mailbox_name());
 $OUTPUT->set_env('sig_above', $CONFIG['sig_above']);
 $OUTPUT->set_env('top_posting', $CONFIG['top_posting']);
+$OUTPUT->set_env('autocomplete_min_length', $CONFIG['autocomplete_min_length']);
 
 // get reference message and set compose mode
 if ($msg_uid = $_SESSION['compose']['param']['reply_uid'])
@@ -169,6 +175,13 @@
       $MESSAGE->reply_all = $_SESSION['compose']['param']['all'];
 
     $OUTPUT->set_env('compose_mode', 'reply');
+
+    // Save the sent message in the same folder of the message being replied to
+    if ($RCMAIL->config->get('reply_same_folder') && ($sent_folder = $_SESSION['compose']['mailbox'])
+      && rcmail_check_sent_folder($sent_folder, false)
+    ) {
+      $_SESSION['compose']['param']['sent_mbox'] = $sent_folder;
+    }
   }
   else if ($compose_mode == RCUBE_COMPOSE_DRAFT)
   {
@@ -183,8 +196,15 @@
         $_SESSION['compose']['forward_uid'] = $info['uid'];
 
       $_SESSION['compose']['mailbox'] = $info['folder'];
+
+      // Save the sent message in the same folder of the message being replied to
+      if ($RCMAIL->config->get('reply_same_folder') && ($sent_folder = $info['folder'])
+        && rcmail_check_sent_folder($sent_folder, false)
+      ) {
+        $_SESSION['compose']['param']['sent_mbox'] = $sent_folder;
+      }
     }
-    
+
     if ($MESSAGE->headers->in_reply_to)
       $_SESSION['compose']['reply_msgid'] = '<'.$MESSAGE->headers->in_reply_to.'>';
 
@@ -197,90 +217,123 @@
   }
 }
 
-// process $MESSAGE body/attachments, set $MESSAGE_BODY/$HTML_MODE vars and some session data
-$MESSAGE_BODY = rcmail_prepare_message_body();
+$MESSAGE->compose = array();
 
-
-/****** compose mode functions ********/
-
-function rcmail_compose_headers($attrib)
+// get user's identities
+$MESSAGE->identities = $USER->list_identities();
+if (count($MESSAGE->identities))
 {
-  global $IMAP, $MESSAGE, $DB, $compose_mode;
-  static $sa_recipients = array();
+  foreach ($MESSAGE->identities as $idx => $sql_arr) {
+    $email = mb_strtolower(rcube_idn_to_utf8($sql_arr['email']));
+    $MESSAGE->identities[$idx]['email_ascii'] = $sql_arr['email'];
+    $MESSAGE->identities[$idx]['email']       = $email;
+  }
+}
 
-  list($form_start, $form_end) = get_form_tags($attrib);
-
-  $out = '';
-  $part = strtolower($attrib['part']);
-
-  switch ($part)
+// Set From field value
+if (!empty($_POST['_from'])) {
+  $MESSAGE->compose['from'] = get_input_value('_from', RCUBE_INPUT_POST);
+}
+else if (!empty($_SESSION['compose']['param']['from'])) {
+  $MESSAGE->compose['from'] = $_SESSION['compose']['param']['from'];
+}
+else if (count($MESSAGE->identities)) {
+  // extract all recipients of the reply-message
+  $a_recipients = array();
+  if ($compose_mode == RCUBE_COMPOSE_REPLY && is_object($MESSAGE->headers))
   {
-    case 'from':
-      return $form_start . rcmail_compose_header_from($attrib);
+    $a_to = $IMAP->decode_address_list($MESSAGE->headers->to);
+    foreach ($a_to as $addr) {
+      if (!empty($addr['mailto']))
+        $a_recipients[] = strtolower($addr['mailto']);
+    }
 
-    case 'to':
-      $fname = '_to';
-      $header = $param = 'to';
-
-      // we have a set of recipients stored is session
-      if (($mailto_id = $_SESSION['compose']['param']['mailto']) && $_SESSION['mailto'][$mailto_id])
-        $fvalue = urldecode($_SESSION['mailto'][$mailto_id]);
-
-    case 'cc':
-      if (!$fname) {
-        $fname = '_cc';
-        $header = $param = 'cc';
+    if (!empty($MESSAGE->headers->cc)) {
+      $a_cc = $IMAP->decode_address_list($MESSAGE->headers->cc);
+      foreach ($a_cc as $addr) {
+        if (!empty($addr['mailto']))
+          $a_recipients[] = strtolower($addr['mailto']);
       }
-    case 'bcc':
-      if (!$fname) {
-        $fname = '_bcc';
-        $header = $param = 'bcc';
-      }
+    }
+  }
 
-      $allow_attrib = array('id', 'class', 'style', 'cols', 'rows', 'tabindex');
-      $field_type = 'html_textarea';
+  $from_idx         = null;
+  $default_identity = 0;
+  $return_path      = $MESSAGE->headers->others['return-path'];
+
+  // Select identity
+  foreach ($MESSAGE->identities as $idx => $sql_arr) {
+    // save default identity ID
+    if ($sql_arr['standard']) {
+      $default_identity = $idx;
+    }
+    // we need ascii here
+    $email = $sql_arr['email_ascii'];
+    $ident = format_email_recipient($email, $sql_arr['name']);
+
+    // select identity
+    if (in_array($compose_mode, array(RCUBE_COMPOSE_DRAFT, RCUBE_COMPOSE_EDIT))) {
+      if ($MESSAGE->headers->from == $ident) {
+        $from_idx = $idx;
+        break;
+      }
+    }
+    // reply to self, force To header value
+    else if ($compose_mode == RCUBE_COMPOSE_REPLY && $MESSAGE->headers->from == $ident) {
+      $from_idx = $idx;
+      $MESSAGE->compose['to'] = $MESSAGE->headers->to;
       break;
-
-    case 'replyto':
-    case 'reply-to':
-      $fname = '_replyto';
-      $param = 'replyto';
-      $header = 'reply-to';
-
-    case 'mailreplyto':
-    case 'mailreply-to':
-      if (!$fname) {
-        $fname = '_mailreplyto';
-        $param = 'mailreplyto';
-        $header = 'mailreply-to';
-      }
-
-    case 'mailfollowupto':
-    case 'mailfollowup-to':
-      if (!$fname) {
-        $fname = '_mailfollowupto';
-        $param = 'mailfollowupto';
-        $header = 'mailfollowup-to';
-      }
-
-      $allow_attrib = array('id', 'class', 'style', 'size', 'tabindex');
-      $field_type = 'html_inputfield';
-      break;
+    }
+    // set identity if it's one of the reply-message recipients
+    else if (in_array($email, $a_recipients) && ($from_idx === null || $sql_arr['standard'])) {
+      $from_idx = $idx;
+    }
+    // set identity when replying to mailing list
+    else if (strpos($return_path, str_replace('@', '=', $email).'@') !== false) {
+      $from_idx = $idx;
+    }
   }
 
-  if ($fname && !empty($_POST[$fname])) {
-    $fvalue = get_input_value($fname, RCUBE_INPUT_POST, TRUE);
+  // Still no ID, use first identity
+  if ($from_idx === null) {
+    $from_idx = $default_identity;
   }
-  else if ($fname && !$fvalue && !empty($_SESSION['compose']['param'][$param])) {
-    $fvalue = $_SESSION['compose']['param'][$param];
+
+  $ident   = $MESSAGE->identities[$from_idx];
+  $from_id = $ident['identity_id'];
+
+  $MESSAGE->compose['from_email'] = $ident['email'];
+  $MESSAGE->compose['from']       = $from_id;
+}
+
+// Set other headers
+$a_recipients = array();
+$parts        = array('to', 'cc', 'bcc', 'replyto', 'followupto');
+
+foreach ($parts as $header) {
+  $fvalue = '';
+
+  // we have a set of recipients stored is session
+  if ($header == 'to' && ($mailto_id = $_SESSION['compose']['param']['mailto'])
+      && $_SESSION['mailto'][$mailto_id]
+  ) {
+    $fvalue = urldecode($_SESSION['mailto'][$mailto_id]);
   }
-  else if ($header && $compose_mode == RCUBE_COMPOSE_REPLY) {
+  else if (!empty($_POST['_'.$header])) {
+    $fvalue = get_input_value('_'.$header, RCUBE_INPUT_POST, TRUE);
+  }
+  else if (!empty($_SESSION['compose']['param'][$header])) {
+    $fvalue = $_SESSION['compose']['param'][$header];
+  }
+  else if ($compose_mode == RCUBE_COMPOSE_REPLY) {
     // get recipent address(es) out of the message headers
     if ($header == 'to') {
       $mailfollowup = $MESSAGE->headers->others['mail-followup-to'];
       $mailreplyto  = $MESSAGE->headers->others['mail-reply-to'];
 
-      if ($MESSAGE->reply_all == 'list' && $mailfollowup)
+      if ($MESSAGE->compose['to'])
+        $fvalue = $MESSAGE->compose['to'];
+      else if ($MESSAGE->reply_all == 'list' && $mailfollowup)
         $fvalue = $mailfollowup;
       else if ($MESSAGE->reply_all == 'list'
         && preg_match('/<mailto:([^>]+)>/i', $MESSAGE->headers->others['list-post'], $m))
@@ -292,41 +345,15 @@
       else if (!empty($MESSAGE->headers->from))
         $fvalue = $MESSAGE->headers->from;
     }
-    // add recipent of original message if reply to all
+    // add recipient of original message if reply to all
     else if ($header == 'cc' && !empty($MESSAGE->reply_all) && $MESSAGE->reply_all != 'list') {
       if ($v = $MESSAGE->headers->to)
         $fvalue .= $v;
       if ($v = $MESSAGE->headers->cc)
         $fvalue .= (!empty($fvalue) ? ', ' : '') . $v;
     }
-
-    // split recipients and put them back together in a unique way
-    if (!empty($fvalue)) {
-      $to_addresses = $IMAP->decode_address_list($fvalue);
-      $fvalue = '';
-
-      foreach ($to_addresses as $addr_part) {
-        if (empty($addr_part['mailto']))
-          continue;
-
-        $mailto = idn_to_utf8($addr_part['mailto']);
-
-        if (!in_array($mailto, $sa_recipients)
-            && (!$MESSAGE->compose_from
-                || !in_array_nocase($mailto, $MESSAGE->compose_from)
-                || (count($to_addresses)==1 && $header=='to')) // allow reply to yourself
-        ) {
-          if ($addr_part['name'] && $addr_part['mailto'] != $addr_part['name'])
-            $string = format_email_recipient($mailto, $addr_part['name']);
-          else
-            $string = $mailto;
-          $fvalue .= (strlen($fvalue) ? ', ':'') . $string;
-          $sa_recipients[] = $addr_part['mailto'];
-        }
-      }
-    }
   }
-  else if ($header && in_array($compose_mode, array(RCUBE_COMPOSE_DRAFT, RCUBE_COMPOSE_EDIT))) {
+  else if (in_array($compose_mode, array(RCUBE_COMPOSE_DRAFT, RCUBE_COMPOSE_EDIT))) {
     // get drafted headers
     if ($header=='to' && !empty($MESSAGE->headers->to))
       $fvalue = $MESSAGE->get_header('to');
@@ -334,28 +361,92 @@
       $fvalue = $MESSAGE->get_header('cc');
     else if ($header=='bcc' && !empty($MESSAGE->headers->bcc))
       $fvalue = $MESSAGE->get_header('bcc');
-    else if ($header=='reply-to' && !empty($MESSAGE->headers->replyto))
+    else if ($header=='replyto' && !empty($MESSAGE->headers->others['mail-reply-to']))
+      $fvalue = $MESSAGE->get_header('mail-reply-to');
+    else if ($header=='replyto' && !empty($MESSAGE->headers->replyto))
       $fvalue = $MESSAGE->get_header('reply-to');
-    else if ($header=='mail-reply-to' && !empty($MESSAGE->headers->others['mail-reply-to']))
-      $fvalue = $MESSAGE->get_header('followup-to');
-    else if ($header=='mail-followup-to' && !empty($MESSAGE->headers->others['mail-followup-to']))
+    else if ($header=='followupto' && !empty($MESSAGE->headers->others['mail-followup-to']))
       $fvalue = $MESSAGE->get_header('mail-followup-to');
+  }
 
-    $addresses = $IMAP->decode_address_list($fvalue);
-    $fvalue = '';
+  // split recipients and put them back together in a unique way
+  if (!empty($fvalue) && in_array($header, array('to', 'cc', 'bcc'))) {
+    $to_addresses = $IMAP->decode_address_list($fvalue);
+    $fvalue = array();
 
-    foreach ($addresses as $addr_part) {
+    foreach ($to_addresses as $addr_part) {
       if (empty($addr_part['mailto']))
         continue;
 
-      $mailto = idn_to_utf8($addr_part['mailto']);
+      $mailto = mb_strtolower(rcube_idn_to_utf8($addr_part['mailto']));
 
-      if ($addr_part['name'] && $addr_part['mailto'] != $addr_part['name'])
-        $string = format_email_recipient($mailto, $addr_part['name']);
-      else
-        $string = $mailto;
-      $fvalue .= (strlen($fvalue) ? ', ':'') . $string;
+      if (!in_array($mailto, $a_recipients)
+        && (empty($MESSAGE->compose['from_email']) || $mailto != $MESSAGE->compose['from_email'])
+      ) {
+        if ($addr_part['name'] && $addr_part['mailto'] != $addr_part['name'])
+          $string = format_email_recipient($mailto, $addr_part['name']);
+        else
+          $string = $mailto;
+
+        $fvalue[] = $string;
+        $a_recipients[] = $addr_part['mailto'];
+      }
     }
+    
+    $fvalue = implode(', ', $fvalue);
+  }
+
+  $MESSAGE->compose[$header] = $fvalue;
+}
+unset($a_recipients);
+
+// process $MESSAGE body/attachments, set $MESSAGE_BODY/$HTML_MODE vars and some session data
+$MESSAGE_BODY = rcmail_prepare_message_body();
+
+
+/****** compose mode functions ********/
+
+function rcmail_compose_headers($attrib)
+{
+  global $MESSAGE;
+
+  list($form_start, $form_end) = get_form_tags($attrib);
+
+  $out  = '';
+  $part = strtolower($attrib['part']);
+
+  switch ($part)
+  {
+    case 'from':
+      return $form_start . rcmail_compose_header_from($attrib);
+
+    case 'to':
+    case 'cc':
+    case 'bcc':
+      $fname = '_' . $part;
+      $header = $param = $part;
+
+      $allow_attrib = array('id', 'class', 'style', 'cols', 'rows', 'tabindex');
+      $field_type = 'html_textarea';
+      break;
+
+    case 'replyto':
+    case 'reply-to':
+      $fname = '_replyto';
+      $param = 'replyto';
+      $header = 'reply-to';
+
+    case 'followupto':
+    case 'followup-to':
+      if (!$fname) {
+        $fname = '_followupto';
+        $param = 'followupto';
+        $header = 'mail-followup-to';
+      }
+
+      $allow_attrib = array('id', 'class', 'style', 'size', 'tabindex');
+      $field_type = 'html_inputfield';
+      break;
   }
 
   if ($fname && $field_type)
@@ -368,7 +459,7 @@
 
     // create teaxtarea object
     $input = new $field_type($field_attrib);
-    $out = $input->show($fvalue);
+    $out = $input->show($MESSAGE->compose[$param]);
   }
   
   if ($form_start)
@@ -380,42 +471,15 @@
 
 function rcmail_compose_header_from($attrib)
 {
-  global $IMAP, $MESSAGE, $DB, $USER, $OUTPUT, $compose_mode;
-    
+  global $MESSAGE, $OUTPUT;
+
   // pass the following attributes to the form class
   $field_attrib = array('name' => '_from');
   foreach ($attrib as $attr => $value)
     if (in_array($attr, array('id', 'class', 'style', 'size', 'tabindex')))
       $field_attrib[$attr] = $value;
 
-  // extract all recipients of the reply-message
-  $a_recipients = array();
-  if ($compose_mode == RCUBE_COMPOSE_REPLY && is_object($MESSAGE->headers))
-  {
-    $MESSAGE->compose_from = array();
-
-    $a_to = $IMAP->decode_address_list($MESSAGE->headers->to);
-    foreach ($a_to as $addr)
-    {
-      if (!empty($addr['mailto']))
-        $a_recipients[] = strtolower($addr['mailto']);
-    }
-
-    if (!empty($MESSAGE->headers->cc))
-    {
-      $a_cc = $IMAP->decode_address_list($MESSAGE->headers->cc);
-      foreach ($a_cc as $addr)
-      {
-        if (!empty($addr['mailto']))
-          $a_recipients[] = strtolower($addr['mailto']);
-      }
-    }
-  }
-
-  // get this user's identities
-  $user_identities = $USER->list_identities();
-
-  if (count($user_identities))
+  if (count($MESSAGE->identities))
   {
     $a_signatures = array();
 
@@ -423,11 +487,10 @@
     $select_from = new html_select($field_attrib);
 
     // create SELECT element
-    foreach ($user_identities as $sql_arr)
+    foreach ($MESSAGE->identities as $sql_arr)
     {
-      $email = mb_strtolower(idn_to_utf8($sql_arr['email']));
       $identity_id = $sql_arr['identity_id'];
-      $select_from->add(format_email_recipient($email, $sql_arr['name']), $identity_id);
+      $select_from->add(format_email_recipient($sql_arr['email'], $sql_arr['name']), $identity_id);
 
       // add signature to array
       if (!empty($sql_arr['signature']) && empty($_SESSION['compose']['param']['nosig']))
@@ -440,50 +503,18 @@
             $a_signatures[$identity_id]['plain_text'] = trim($h2t->get_text());
         }
       }
-
-      if ($compose_mode == RCUBE_COMPOSE_REPLY && is_array($MESSAGE->compose_from))
-        $MESSAGE->compose_from[] = $email;
     }
 
-    $from_id = 0;
-
-    // overwrite identity selection with post parameter
-    if (!empty($_POST['_from']))
-      $from_id = get_input_value('_from', RCUBE_INPUT_POST);
-    else if (!empty($_SESSION['compose']['param']['from']))
-      $from_id = $_SESSION['compose']['param']['from'];
-    else {
-      $return_path = $MESSAGE->headers->others['return-path'];
-
-      // Set identity
-      foreach ($user_identities as $sql_arr) {
-        // set draft's identity
-        if ($compose_mode == RCUBE_COMPOSE_DRAFT) {
-          if (strstr($MESSAGE->headers->from, $sql_arr['email']))
-            $from_id = $sql_arr['identity_id'];
-            break;
-        }
-        // set identity if it's one of the reply-message recipients (with prio for default identity)
-        else if (in_array($sql_arr['email'], $a_recipients) && (empty($from_id) || $sql_arr['standard']))
-          $from_id = $sql_arr['identity_id'];
-        // set identity when replying to mailing list
-        else if (strpos($return_path, str_replace('@', '=', $sql_arr['email']).'@') !== false)
-          $from_id = $sql_arr['identity_id'];
-
-        if ($from_id)
-          break;
-      }
-    }
-
-    $out = $select_from->show($from_id);
+    $out = $select_from->show($MESSAGE->compose['from']);
 
     // add signatures to client
     $OUTPUT->set_env('signatures', $a_signatures);
   }
-  else
-  {
+  // no identities, display text input field
+  else {
+    $field_attrib['class'] = 'from_address';
     $input_from = new html_inputfield($field_attrib);
-    $out = $input_from->show($_POST['_from']);
+    $out = $input_from->show($MESSAGE->compose['from']);
   }
 
   return $out;
@@ -537,7 +568,12 @@
         $body = $MESSAGE->first_html_part();
       }
       else {
-        $body = rcmail_plain_body($MESSAGE->first_text_part());
+        $body = $MESSAGE->first_text_part();
+        // try to remove the signature
+        if ($RCMAIL->config->get('strip_existing_sig', true))
+          $body = rcmail_remove_signature($body);
+        // add HTML formatting
+        $body = rcmail_plain_body($body);
         if ($body)
           $body = '<pre>' . $body . '</pre>';
       }
@@ -620,9 +656,20 @@
   $out .= $msgtype->show();
 
   // If desired, set this textarea to be editable by TinyMCE
-  if ($isHtml) $attrib['class'] = 'mce_editor';
-  $textarea = new html_textarea($attrib);
-  $out .= $textarea->show($MESSAGE_BODY);
+  if ($isHtml) {
+    $attrib['class'] = 'mce_editor';
+    $textarea = new html_textarea($attrib);
+    $out .= $textarea->show($MESSAGE_BODY);
+  }
+  else {
+    $textarea = new html_textarea($attrib);
+    $out .= $textarea->show('');
+    // quote plain text, inject into textarea
+    $table = get_html_translation_table(HTML_SPECIALCHARS);
+    $MESSAGE_BODY = strtr($MESSAGE_BODY, $table);
+    $out = substr($out, 0, -11) . $MESSAGE_BODY . '</textarea>';
+  }
+
   $out .= $form_end ? "\n$form_end" : '';
 
   $OUTPUT->set_env('composebody', $attrib['id']);
@@ -702,26 +749,16 @@
   global $RCMAIL, $MESSAGE, $LINE_LENGTH;
 
   // build reply prefix
-  $from = array_pop($RCMAIL->imap->decode_address_list($MESSAGE->get_header('from')));
+  $from = array_pop($RCMAIL->imap->decode_address_list($MESSAGE->get_header('from'), 1, false));
   $prefix = sprintf("On %s, %s wrote:",
-    $MESSAGE->headers->date, $from['name'] ? $from['name'] : idn_to_utf8($from['email']));
+    $MESSAGE->headers->date, $from['name'] ? $from['name'] : rcube_idn_to_utf8($from['mailto']));
 
   if (!$bodyIsHtml) {
     $body = preg_replace('/\r?\n/', "\n", $body);
 
     // try to remove the signature
-    if ($RCMAIL->config->get('strip_existing_sig', true)) {
-      $len = strlen($body);
-      while (($sp = strrpos($body, "-- \n", $sp ? -$len+$sp-1 : 0)) !== false) {
-        if ($sp == 0 || $body[$sp-1] == "\n") {
-          // do not touch blocks with more that X lines
-          if (substr_count($body, "\n", $sp) < $RCMAIL->config->get('sig_max_lines', 15)) {
-            $body = substr($body, 0, max(0, $sp-1));
-          }
-          break;
-        }
-      }
-    }
+    if ($RCMAIL->config->get('strip_existing_sig', true))
+      $body = rcmail_remove_signature($body);
 
     // soft-wrap and quote message text
     $body = rcmail_wrap_and_quote(rtrim($body, "\n"), $LINE_LENGTH);
@@ -835,11 +872,32 @@
   
   return $body;
 }
-  
-  
+
+
+function rcmail_remove_signature($body)
+{
+  global $RCMAIL;
+
+  $len = strlen($body);
+  $sig_max_lines = $RCMAIL->config->get('sig_max_lines', 15);
+
+  while (($sp = strrpos($body, "-- \n", $sp ? -$len+$sp-1 : 0)) !== false) {
+    if ($sp == 0 || $body[$sp-1] == "\n") {
+      // do not touch blocks with more that X lines
+      if (substr_count($body, "\n", $sp) < $sig_max_lines) {
+        $body = substr($body, 0, max(0, $sp-1));
+      }
+      break;
+    }
+  }
+
+  return $body;
+}
+
+
 function rcmail_write_compose_attachments(&$message, $bodyIsHtml)
 {
-  global $OUTPUT;
+  global $RCMAIL;
 
   $cid_map = $messages = array();
   foreach ((array)$message->mime_parts as $pid => $part)
@@ -863,7 +921,7 @@
       if (!$skip && ($attachment = rcmail_save_attachment($message, $pid))) {
         $_SESSION['compose']['attachments'][$attachment['id']] = $attachment;
         if ($bodyIsHtml && ($part->content_id || $part->content_location)) {
-          $url = $OUTPUT->app->comm_path.'&_action=display-attachment&_file=rcmfile'.$attachment['id'];
+          $url = $RCMAIL->comm_path.'&_action=display-attachment&_file=rcmfile'.$attachment['id'];
           if ($part->content_id)
             $cid_map['cid:'.$part->content_id] = $url;
           else
@@ -881,14 +939,14 @@
 
 function rcmail_write_inline_attachments(&$message)
 {
-  global $OUTPUT;
+  global $RCMAIL;
 
   $cid_map = array();
   foreach ((array)$message->mime_parts as $pid => $part) {
     if (($part->content_id || $part->content_location) && $part->filename) {
       if ($attachment = rcmail_save_attachment($message, $pid)) {
         $_SESSION['compose']['attachments'][$attachment['id']] = $attachment;
-        $url = $OUTPUT->app->comm_path.'&_action=display-attachment&_file=rcmfile'.$attachment['id'];
+        $url = $RCMAIL->comm_path.'&_action=display-attachment&_file=rcmfile'.$attachment['id'];
         if ($part->content_id)
           $cid_map['cid:'.$part->content_id] = $url;
         else
@@ -1092,7 +1150,7 @@
   
   $out = html::div($attrib,
     $OUTPUT->form_tag(array('name' => 'uploadform', 'method' => 'post', 'enctype' => 'multipart/form-data'),
-      html::div(null, rcmail_compose_attachment_field(array('size' => $attrib[attachmentfieldsize]))) .
+      html::div(null, rcmail_compose_attachment_field(array('size' => $attrib['attachmentfieldsize']))) .
       html::div('hint', rcube_label(array('name' => 'maxuploadsize', 'vars' => array('size' => $max_filesize)))) .
       html::div('buttons',
         $button->show(rcube_label('close'), array('class' => 'button', 'onclick' => "$('#$attrib[id]').hide()")) . ' ' .
@@ -1236,6 +1294,26 @@
 }
 
 
+function rcmail_check_sent_folder($folder, $create=false)
+{
+  global $IMAP;
+
+  if ($IMAP->mailbox_exists($folder, true)) {
+    return true;
+  }
+
+  // folder may exist but isn't subscribed (#1485241)
+  if ($create) {
+    if (!$IMAP->mailbox_exists($folder))
+      return $IMAP->create_mailbox($folder, true);
+    else
+      return $IMAP->subscribe($folder);
+  }
+
+  return false;
+}
+
+
 function get_form_tags($attrib)
 {
   global $RCMAIL, $MESSAGE_FORM;
@@ -1249,13 +1327,13 @@
     $form_start = empty($attrib['form']) ? $RCMAIL->output->form_tag(array('name' => "form", 'method' => "post")) : '';
     $form_start .= $hiddenfields->show();
   }
-    
+
   $form_end = ($MESSAGE_FORM && !strlen($attrib['form'])) ? '</form>' : '';
   $form_name = !empty($attrib['form']) ? $attrib['form'] : 'form';
-  
+
   if (!$MESSAGE_FORM)
     $RCMAIL->output->add_gui_object('messageform', $form_name);
-  
+
   $MESSAGE_FORM = $form_name;
 
   return array($form_start, $form_end);

--
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