From 8eefbb2158c43b51a8c33e6c480cbe61539b9535 Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Mon, 27 Aug 2012 04:16:04 -0400
Subject: [PATCH] Add option to enable HTML editor on forwarding (#1488517)

---
 program/include/rcube_imap_cache.php |  179 +++++++++++++++++++++++++++++++----------------------------
 1 files changed, 94 insertions(+), 85 deletions(-)

diff --git a/program/include/rcube_imap_cache.php b/program/include/rcube_imap_cache.php
index eaa8a80..4d6d5e1 100644
--- a/program/include/rcube_imap_cache.php
+++ b/program/include/rcube_imap_cache.php
@@ -5,7 +5,7 @@
  | program/include/rcube_imap_cache.php                                  |
  |                                                                       |
  | This file is part of the Roundcube Webmail client                     |
- | Copyright (C) 2005-2011, The Roundcube Dev Team                       |
+ | Copyright (C) 2005-2012, The Roundcube Dev Team                       |
  |                                                                       |
  | Licensed under the GNU General Public License version 3 or            |
  | any later version with exceptions for skins & plugins.                |
@@ -18,9 +18,6 @@
  | Author: Thomas Bruederli <roundcube@gmail.com>                        |
  | Author: Aleksander Machniak <alec@alec.pl>                            |
  +-----------------------------------------------------------------------+
-
- $Id$
-
 */
 
 
@@ -42,9 +39,9 @@
     private $imap;
 
     /**
-     * Instance of rcube_mdb2
+     * Instance of rcube_db
      *
-     * @var rcube_mdb2
+     * @var rcube_db
      */
     private $db;
 
@@ -314,10 +311,10 @@
             $uid          = intval($sql_arr['uid']);
             $result[$uid] = $this->build_message($sql_arr);
 
-            // save memory, we don't need message body here (?)
-            $result[$uid]->body = null;
-
             if (!empty($result[$uid])) {
+                // save memory, we don't need message body here (?)
+                $result[$uid]->body = null;
+
                 unset($msgs[$uid]);
             }
         }
@@ -353,11 +350,11 @@
     function get_message($mailbox, $uid, $update = true, $cache = true)
     {
         // Check internal cache
-        if ($this->icache['message']
-            && $this->icache['message']['mailbox'] == $mailbox
-            && $this->icache['message']['object']->uid == $uid
+        if ($this->icache['__message']
+            && $this->icache['__message']['mailbox'] == $mailbox
+            && $this->icache['__message']['object']->uid == $uid
         ) {
-            return $this->icache['message']['object'];
+            return $this->icache['__message']['object'];
         }
 
         $sql_result = $this->db->query(
@@ -389,7 +386,7 @@
             // Save current message from internal cache
             $this->save_icache();
 
-            $this->icache['message'] = array(
+            $this->icache['__message'] = array(
                 'object'  => $message,
                 'mailbox' => $mailbox,
                 'exists'  => $found,
@@ -462,20 +459,28 @@
      */
     function change_flag($mailbox, $uids, $flag, $enabled = false)
     {
+        if (empty($uids)) {
+            return;
+        }
+
         $flag = strtoupper($flag);
         $idx  = (int) array_search($flag, $this->flags);
+        $uids = (array) $uids;
 
         if (!$idx) {
             return;
         }
 
         // Internal cache update
-        if ($uids && count($uids) == 1 && ($uid = current($uids))
-            && ($message = $this->icache['message'])
-            && $message['mailbox'] == $mailbox && $message['object']->uid == $uid
+        if (($message = $this->icache['__message'])
+            && $message['mailbox'] === $mailbox
+            && in_array($message['object']->uid, $uids)
         ) {
             $message['object']->flags[$flag] = $enabled;
-            return;
+
+            if (count($uids) == 1) {
+                return;
+            }
         }
 
         $this->db->query(
@@ -484,7 +489,7 @@
             .", flags = flags ".($enabled ? "+ $idx" : "- $idx")
             ." WHERE user_id = ?"
                 ." AND mailbox = ?"
-                .($uids !== null ? " AND uid IN (".$this->db->array2list((array)$uids, 'integer').")" : "")
+                .($uids !== null ? " AND uid IN (".$this->db->array2list($uids, 'integer').")" : "")
                 ." AND (flags & $idx) ".($enabled ? "= 0" : "= $idx"),
             $this->userid, $mailbox);
     }
@@ -506,10 +511,11 @@
         }
         else {
             // Remove the message from internal cache
-            if (!empty($uids) && !is_array($uids) && ($message = $this->icache['message'])
-                && $message['mailbox'] == $mailbox && $message['object']->uid == $uids
+            if (!empty($uids) && ($message = $this->icache['__message'])
+                && $message['mailbox'] === $mailbox
+                && in_array($message['object']->uid, (array)$uids)
             ) {
-                $this->icache['message'] = null;
+                $this->icache['__message'] = null;
             }
 
             $this->db->query(
@@ -519,7 +525,6 @@
                     .($uids !== null ? " AND uid IN (".$this->db->array2list((array)$uids, 'integer').")" : ""),
                 $this->userid, $mailbox);
         }
-
     }
 
 
@@ -767,6 +772,11 @@
         $object    = $index['object'];
         $is_thread = is_a($object, 'rcube_result_thread');
 
+        // sanity check
+        if (empty($object)) {
+            return false;
+        }
+
         // Get mailbox data (UIDVALIDITY, counters, etc.) for status check
         $mbox_data = $this->imap->folder_data($mailbox);
 
@@ -920,16 +930,15 @@
             return;
         }
 
-        // NOTE: make sure the mailbox isn't selected, before
-        // enabling QRESYNC and invoking SELECT
-        if ($this->imap->conn->selected !== null) {
-            $this->imap->conn->close();
-        }
-
         // Enable QRESYNC
         $res = $this->imap->conn->enable($qresync ? 'QRESYNC' : 'CONDSTORE');
-        if (!is_array($res)) {
+        if ($res === false) {
             return;
+        }
+
+        // Close mailbox if already selected to get most recent data
+        if ($this->imap->conn->selected == $mailbox) {
+            $this->imap->conn->close();
         }
 
         // Get mailbox data (UIDVALIDITY, HIGHESTMODSEQ, counters, etc.)
@@ -955,8 +964,10 @@
             return;
         }
 
-        // Get known uids
-        $uids = array();
+        $uids    = array();
+        $removed = array();
+
+        // Get known UIDs
         $sql_result = $this->db->query(
             "SELECT uid"
             ." FROM ".$this->db->table_name('cache_messages')
@@ -965,74 +976,69 @@
             $this->userid, $mailbox);
 
         while ($sql_arr = $this->db->fetch_assoc($sql_result)) {
-          $uids[] = $sql_arr['uid'];
+            $uids[] = $sql_arr['uid'];
         }
 
-        // No messages in database, nothing to sync
-        if (empty($uids)) {
-            return;
-        }
+        // Synchronize messages data
+        if (!empty($uids)) {
+            // Get modified flags and vanished messages
+            // UID FETCH 1:* (FLAGS) (CHANGEDSINCE 0123456789 VANISHED)
+            $result = $this->imap->conn->fetch($mailbox,
+                $uids, true, array('FLAGS'), $index['modseq'], $qresync);
 
-        // Get modified flags and vanished messages
-        // UID FETCH 1:* (FLAGS) (CHANGEDSINCE 0123456789 VANISHED)
-        $result = $this->imap->conn->fetch($mailbox,
-            !empty($uids) ? $uids : '1:*', true, array('FLAGS'),
-            $index['modseq'], $qresync);
-
-        $invalidated = false;
-
-        if (!empty($result)) {
-            foreach ($result as $id => $msg) {
-                $uid = $msg->uid;
-                // Remove deleted message
-                if ($this->skip_deleted && !empty($msg->flags['DELETED'])) {
-                    $this->remove_message($mailbox, $uid);
-
-                    if (!$invalidated) {
-                        $invalidated = true;
-                        // Invalidate thread indexes (?)
-                        $this->remove_thread($mailbox);
+            if (!empty($result)) {
+                foreach ($result as $id => $msg) {
+                    $uid = $msg->uid;
+                    // Remove deleted message
+                    if ($this->skip_deleted && !empty($msg->flags['DELETED'])) {
+                        $removed[] = $uid;
                         // Invalidate index
                         $index['valid'] = false;
+                        continue;
                     }
-                    continue;
-                }
 
-                $flags = 0;
-                if (!empty($msg->flags)) {
-                    foreach ($this->flags as $idx => $flag)
-                        if (!empty($msg->flags[$flag]))
-                            $flags += $idx;
-                }
+                    $flags = 0;
+                    if (!empty($msg->flags)) {
+                        foreach ($this->flags as $idx => $flag) {
+                            if (!empty($msg->flags[$flag])) {
+                                $flags += $idx;
+                            }
+                        }
+                    }
 
-                $this->db->query(
-                    "UPDATE ".$this->db->table_name('cache_messages')
-                    ." SET flags = ?, changed = ".$this->db->now()
-                    ." WHERE user_id = ?"
-                        ." AND mailbox = ?"
-                        ." AND uid = ?"
-                        ." AND flags <> ?",
-                    $flags, $this->userid, $mailbox, $uid, $flags);
+                    $this->db->query(
+                        "UPDATE ".$this->db->table_name('cache_messages')
+                        ." SET flags = ?, changed = ".$this->db->now()
+                        ." WHERE user_id = ?"
+                            ." AND mailbox = ?"
+                            ." AND uid = ?"
+                            ." AND flags <> ?",
+                        $flags, $this->userid, $mailbox, $uid, $flags);
+                }
             }
-        }
 
-        // Get VANISHED
-        if ($qresync) {
-            $mbox_data = $this->imap->folder_data($mailbox);
+            // VANISHED found?
+            if ($qresync) {
+                $mbox_data = $this->imap->folder_data($mailbox);
 
-            // Removed messages
-            if (!empty($mbox_data['VANISHED'])) {
+                // Removed messages found
                 $uids = rcube_imap_generic::uncompressMessageSet($mbox_data['VANISHED']);
                 if (!empty($uids)) {
-                    // remove messages from database
-                    $this->remove_message($mailbox, $uids);
-
-                    // Invalidate thread indexes (?)
-                    $this->remove_thread($mailbox);
+                    $removed = array_merge($removed, $uids);
                     // Invalidate index
                     $index['valid'] = false;
                 }
             }
+
+            // remove messages from database
+            if (!empty($removed)) {
+                $this->remove_message($mailbox, $removed);
+            }
+        }
+
+        // Invalidate thread index (?)
+        if (!$index['valid']) {
+            $this->remove_thread($mailbox);
         }
 
         $sort_field = $index['sort_field'];
@@ -1086,7 +1092,7 @@
     private function save_icache()
     {
         // Save current message from internal cache
-        if ($message = $this->icache['message']) {
+        if ($message = $this->icache['__message']) {
             // clean up some object's data
             $object = $this->message_object_prepare($message['object']);
 
@@ -1097,7 +1103,7 @@
                 $this->add_message($message['mailbox'], $object, !$message['exists']);
             }
 
-            $this->icache['message']['md5sum'] = $md5sum;
+            $this->icache['__message']['md5sum'] = $md5sum;
         }
     }
 
@@ -1149,3 +1155,6 @@
         return $index;
     }
 }
+
+// for backward compat.
+class rcube_mail_header extends rcube_message_header { }

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