From be9aacaa5296dfca63fb3a01c2dc52538d1546aa Mon Sep 17 00:00:00 2001
From: Thomas Bruederli <thomas@roundcube.net>
Date: Sat, 17 Nov 2012 12:31:31 -0500
Subject: [PATCH] Bring back lost localization for the about page

---
 program/include/rcube_message.php |  187 ++++++++++++++++++++++++++++++++++------------
 1 files changed, 139 insertions(+), 48 deletions(-)

diff --git a/program/include/rcube_message.php b/program/include/rcube_message.php
index d0959ef..87319f0 100644
--- a/program/include/rcube_message.php
+++ b/program/include/rcube_message.php
@@ -17,9 +17,6 @@
  +-----------------------------------------------------------------------+
  | Author: Thomas Bruederli <roundcube@gmail.com>                        |
  +-----------------------------------------------------------------------+
-
- $Id$
-
 */
 
 
@@ -27,15 +24,16 @@
  * Logical representation of a mail message with all its data
  * and related functions
  *
- * @package    Mail
+ * @package    Framework
+ * @subpackage Storage
  * @author     Thomas Bruederli <roundcube@gmail.com>
  */
 class rcube_message
 {
     /**
-     * Instace of rcmail.
+     * Instace of framework class.
      *
-     * @var rcmail
+     * @var rcube
      */
     private $app;
 
@@ -53,13 +51,14 @@
      */
     private $mime;
     private $opt = array();
-    private $inline_parts = array();
     private $parse_alternative = false;
 
-    public $uid = null;
+    public $uid;
+    public $folder;
     public $headers;
     public $parts = array();
     public $mime_parts = array();
+    public $inline_parts = array();
     public $attachments = array();
     public $subject = '';
     public $sender = null;
@@ -71,16 +70,21 @@
      *
      * Provide a uid, and parse message structure.
      *
-     * @param string $uid The message UID.
+     * @param string $uid    The message UID.
+     * @param string $folder Folder name
      *
      * @see self::$app, self::$storage, self::$opt, self::$parts
      */
-    function __construct($uid)
+    function __construct($uid, $folder = null)
     {
         $this->uid  = $uid;
-        $this->app  = rcmail::get_instance();
+        $this->app  = rcube::get_instance();
         $this->storage = $this->app->get_storage();
+        $this->folder  = strlen($folder) ? $folder : $this->storage->get_folder();
         $this->storage->set_options(array('all_headers' => true));
+
+        // Set current folder
+        $this->storage->set_folder($this->folder);
 
         $this->headers = $this->storage->get_message($uid);
 
@@ -96,8 +100,10 @@
         $this->opt = array(
             'safe' => $this->is_safe,
             'prefer_html' => $this->app->config->get('prefer_html'),
-            'get_url' => rcmail_url('get', array(
-                '_mbox' => $this->storage->get_folder(), '_uid' => $uid))
+            'get_url' => $this->app->url(array(
+                'action' => 'get',
+                'mbox'   => $this->storage->get_folder(),
+                'uid'    => $uid))
         );
 
         if (!empty($this->headers->structure)) {
@@ -164,11 +170,13 @@
     /**
      * Get content of a specific part of this message
      *
-     * @param string $mime_id Part MIME-ID
-     * @param resource $fp File pointer to save the message part
+     * @param string   $mime_id           Part MIME-ID
+     * @param resource $fp File           pointer to save the message part
+     * @param boolean  $skip_charset_conv Disables charset conversion
+     *
      * @return string Part content
      */
-    public function get_part_content($mime_id, $fp=NULL)
+    public function get_part_content($mime_id, $fp = null, $skip_charset_conv = false)
     {
         if ($part = $this->mime_parts[$mime_id]) {
             // stored in message structure (winmail/inline-uuencode)
@@ -178,25 +186,50 @@
                 }
                 return $fp ? true : $part->body;
             }
+
             // get from IMAP
-            return $this->storage->get_message_part($this->uid, $mime_id, $part, NULL, $fp);
-        } else
-            return null;
+            $this->storage->set_folder($this->folder);
+
+            return $this->storage->get_message_part($this->uid, $mime_id, $part, NULL, $fp, $skip_charset_conv);
+        }
     }
 
 
     /**
      * Determine if the message contains a HTML part
      *
+     * @param bool $recursive Enables checking in all levels of the structure
+     * @param bool $enriched  Enables checking for text/enriched parts too
+     *
      * @return bool True if a HTML is available, False if not
      */
-    function has_html_part()
+    function has_html_part($recursive = true, $enriched = false)
     {
         // check all message parts
-        foreach ($this->parts as $pid => $part) {
-            $mimetype = strtolower($part->ctype_primary . '/' . $part->ctype_secondary);
-            if ($mimetype == 'text/html')
+        foreach ($this->parts as $part) {
+            if ($part->mimetype == 'text/html' || ($enriched && $part->mimetype == 'text/enriched')) {
+                // Level check, we'll skip e.g. HTML attachments
+                if (!$recursive) {
+                    $level = explode('.', $part->mime_id);
+
+                    // Skip if level too deep or part has a file name
+                    if (count($level) > 2 || $part->filename) {
+                        continue;
+                    }
+
+                    // HTML part can be on the lower level, if not...
+                    if (count($level) > 1) {
+                        array_pop($level);
+                        $parent = $this->mime_parts[join('.', $level)];
+                        // ... parent isn't multipart/alternative or related
+                        if ($parent->mimetype != 'multipart/alternative' && $parent->mimetype != 'multipart/related') {
+                            continue;
+                        }
+                    }
+                }
+
                 return true;
+            }
         }
 
         return false;
@@ -211,10 +244,9 @@
     function first_html_part()
     {
         // check all message parts
-        foreach ($this->mime_parts as $mime_id => $part) {
-            $mimetype = strtolower($part->ctype_primary . '/' . $part->ctype_secondary);
-            if ($mimetype == 'text/html') {
-                return $this->get_part_content($mime_id);
+        foreach ($this->mime_parts as $pid => $part) {
+            if ($part->mimetype == 'text/html') {
+                return $this->get_part_content($pid);
             }
         }
     }
@@ -234,17 +266,11 @@
 
         // check all message parts
         foreach ($this->mime_parts as $mime_id => $part) {
-            $mimetype = $part->ctype_primary . '/' . $part->ctype_secondary;
-
-            if ($mimetype == 'text/plain') {
+            if ($part->mimetype == 'text/plain') {
                 return $this->get_part_content($mime_id);
             }
-            else if ($mimetype == 'text/html') {
+            else if ($part->mimetype == 'text/html') {
                 $out = $this->get_part_content($mime_id);
-
-                // remove special chars encoding
-                $trans = array_flip(get_html_translation_table(HTML_ENTITIES));
-                $out = strtr($out, $trans);
 
                 // create instance of html2text class
                 $txt = new html2text($out);
@@ -254,6 +280,32 @@
 
         $part = null;
         return null;
+    }
+
+
+    /**
+     * Checks if part of the message is an attachment (or part of it)
+     *
+     * @param rcube_message_part $part Message part
+     *
+     * @return bool True if the part is an attachment part
+     */
+    public function is_attachment($part)
+    {
+        foreach ($this->attachments as $att_part) {
+            if ($att_part->mime_id == $part->mime_id) {
+                return true;
+            }
+
+            // check if the part is a subpart of another attachment part (message/rfc822)
+            if ($att_part->mimetype == 'message/rfc822') {
+                if (in_array($part, (array)$att_part->parts)) {
+                    return true;
+                }
+            }
+        }
+
+        return false;
     }
 
 
@@ -318,6 +370,11 @@
             foreach ($structure->parts as $p => $sub_part) {
                 $sub_mimetype = $sub_part->mimetype;
 
+                // skip empty text parts
+                if (!$sub_part->size && preg_match('#^text/(plain|html|enriched)$#', $sub_mimetype)) {
+                    continue;
+                }
+
                 // check if sub part is
                 if ($sub_mimetype == 'text/plain')
                     $plain_part = $p;
@@ -362,7 +419,8 @@
                 $c->type            = 'content';
                 $c->ctype_primary   = 'text';
                 $c->ctype_secondary = 'plain';
-                $c->body            = rcube_label('htmlmessage');
+                $c->mimetype        = 'text/plain';
+                $c->realtype        = 'text/html';
 
                 $this->parts[] = $c;
             }
@@ -370,7 +428,6 @@
             // add html part as attachment
             if ($html_part !== null && $structure->parts[$html_part] !== $print_part) {
                 $html_part = &$structure->parts[$html_part];
-                $html_part->filename = rcube_label('htmlmessage');
                 $html_part->mimetype = 'text/html';
 
                 $this->attachments[] = $html_part;
@@ -382,8 +439,8 @@
             $p->type            = 'content';
             $p->ctype_primary   = 'text';
             $p->ctype_secondary = 'plain';
-            $p->body            = rcube_label('encryptedmessage');
-            $p->size            = strlen($p->body);
+            $p->mimetype        = 'text/plain';
+            $p->realtype        = 'multipart/encrypted';
 
             $this->parts[] = $p;
         }
@@ -424,7 +481,7 @@
                     if ($plugin['abort'])
                         continue;
 
-                    if ($part_mimetype == 'text/html') {
+                    if ($part_mimetype == 'text/html' && $mail_part->size) {
                         $got_html_part = true;
                     }
 
@@ -441,8 +498,13 @@
                     }
 
                     // list as attachment as well
-                    if (!empty($mail_part->filename))
+                    if (!empty($mail_part->filename)) {
                         $this->attachments[] = $mail_part;
+                    }
+                    // list html part as attachment (here the part is most likely inside a multipart/related part)
+                    else if ($this->parse_alternative && ($secondary_type == 'html' && !$this->opt['prefer_html'])) {
+                        $this->attachments[] = $mail_part;
+                    }
                 }
                 // part message/*
                 else if ($primary_type == 'message') {
@@ -592,8 +654,10 @@
     function tnef_decode(&$part)
     {
         // @TODO: attachment may be huge, hadle it via file
-        if (!isset($part->body))
+        if (!isset($part->body)) {
+            $this->storage->set_folder($this->folder);
             $part->body = $this->storage->get_message_part($this->uid, $part->mime_id, $part);
+        }
 
         $parts = array();
         $tnef = new tnef_decoder;
@@ -628,40 +692,67 @@
     function uu_decode(&$part)
     {
         // @TODO: messages may be huge, hadle body via file
-        if (!isset($part->body))
+        if (!isset($part->body)) {
+            $this->storage->set_folder($this->folder);
             $part->body = $this->storage->get_message_part($this->uid, $part->mime_id, $part);
+        }
 
         $parts = array();
         // FIXME: line length is max.65?
-        $uu_regexp = '/begin [0-7]{3,4} ([^\n]+)\n(([\x21-\x7E]{0,65}\n)+)`\nend/s';
+        $uu_regexp = '/begin [0-7]{3,4} ([^\n]+)\n/s';
 
         if (preg_match_all($uu_regexp, $part->body, $matches, PREG_SET_ORDER)) {
-            // remove attachments bodies from the message body
-            $part->body = preg_replace($uu_regexp, '', $part->body);
             // update message content-type
             $part->ctype_primary   = 'multipart';
             $part->ctype_secondary = 'mixed';
             $part->mimetype        = $part->ctype_primary . '/' . $part->ctype_secondary;
+            $uu_endstring = "`\nend\n";
 
             // add attachments to the structure
             foreach ($matches as $pid => $att) {
+                $startpos = strpos($part->body, $att[1]) + strlen($att[1]) + 1; // "\n"
+                $endpos = strpos($part->body, $uu_endstring);
+                $filebody = substr($part->body, $startpos, $endpos-$startpos);
+
+                // remove attachments bodies from the message body
+                $part->body = substr_replace($part->body, "", $startpos, $endpos+strlen($uu_endstring)-$startpos);
+
                 $uupart = new rcube_message_part;
 
                 $uupart->filename = trim($att[1]);
                 $uupart->encoding = 'stream';
-                $uupart->body     = convert_uudecode($att[2]);
+                $uupart->body     = convert_uudecode($filebody);
                 $uupart->size     = strlen($uupart->body);
                 $uupart->mime_id  = 'uu.' . $part->mime_id . '.' . $pid;
 
-                $ctype = rc_mime_content_type($uupart->body, $uupart->filename, 'application/octet-stream', true);
+                $ctype = rcube_mime::content_type($uupart->body, $uupart->filename, 'application/octet-stream', true);
                 $uupart->mimetype = $ctype;
                 list($uupart->ctype_primary, $uupart->ctype_secondary) = explode('/', $ctype);
 
                 $parts[] = $uupart;
                 unset($matches[$pid]);
             }
+
+            // remove attachments bodies from the message body
+            $part->body = preg_replace($uu_regexp, '', $part->body);
         }
 
         return $parts;
     }
+
+
+    /**
+     * Deprecated methods (to be removed)
+     */
+
+    public static function unfold_flowed($text)
+    {
+        return rcube_mime::unfold_flowed($text);
+    }
+
+    public static function format_flowed($text, $length = 72)
+    {
+        return rcube_mime::format_flowed($text, $length);
+    }
+
 }

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