From f388a8d37a0cd05df9f3fba4ec863d3818bb3d10 Mon Sep 17 00:00:00 2001
From: svncommit <devs@roundcube.net>
Date: Fri, 23 Mar 2007 13:22:36 -0400
Subject: [PATCH] Fixing cache clearing bug. close #1484295

---
 program/include/rcube_imap.inc |  241 ++++++++++++++++++++++++++++++++++--------------
 1 files changed, 170 insertions(+), 71 deletions(-)

diff --git a/program/include/rcube_imap.inc b/program/include/rcube_imap.inc
index bcbea81..438922b 100644
--- a/program/include/rcube_imap.inc
+++ b/program/include/rcube_imap.inc
@@ -5,7 +5,7 @@
  | program/include/rcube_imap.inc                                        |
  |                                                                       |
  | This file is part of the RoundCube Webmail client                     |
- | Copyright (C) 2005, RoundCube Dev. - Switzerland                      |
+ | Copyright (C) 2005-2006, RoundCube Dev. - Switzerland                 |
  | Licensed under the GNU GPL                                            |
  |                                                                       |
  | PURPOSE:                                                              |
@@ -35,7 +35,7 @@
  *
  * @package    RoundCube Webmail
  * @author     Thomas Bruederli <roundcube@gmail.com>
- * @version    1.34
+ * @version    1.36
  * @link       http://ilohamail.org
  */
 class rcube_imap
@@ -60,6 +60,10 @@
   var $msg_headers = array();
   var $capabilities = array();
   var $skip_deleted = FALSE;
+  var $search_set = NULL;
+  var $search_subject = '';
+  var $search_string = '';
+  var $search_charset = '';
   var $debug_level = 1;
 
 
@@ -265,6 +269,36 @@
     {
     $this->page_size = (int)$size;
     }
+    
+
+  /**
+   * Save a set of message ids for future message listing methods
+   *
+   * @param  array  List of IMAP fields to search in
+   * @param  string Search string
+   * @param  array  List of message ids or NULL if empty
+   */
+  function set_search_set($subject, $str=null, $msgs=null, $charset=null)
+    {
+    if (is_array($subject) && $str == null && $msgs == null)
+      list($subject, $str, $msgs, $charset) = $subject;
+    if ($msgs != null && !is_array($msgs))
+      $msgs = split(',', $msgs);
+      
+    $this->search_subject = $subject;
+    $this->search_string = $str;
+    $this->search_set = is_array($msgs) ? $msgs : NULL;
+    $this->search_charset = $charset;
+    }
+
+
+  /**
+   * Return the saved search set as hash array
+   */
+  function get_search_set()
+    {
+    return array($this->search_subject, $this->search_string, $this->search_set, $this->search_charset);
+    }
 
 
   /**
@@ -402,6 +436,10 @@
 
     if (empty($mailbox))
       $mailbox = $this->mailbox;
+      
+    // count search set
+    if ($this->search_set && $mailbox == $this->mailbox && $mode == 'ALL')
+      return count($this->search_set);
 
     $a_mailbox_cache = $this->get_cache('messagecount');
     
@@ -481,7 +519,11 @@
     {
     if (!strlen($mailbox))
       return array();
-      
+
+    // use saved message set
+    if ($this->search_set && $mailbox == $this->mailbox)
+      return $this->_list_header_set($mailbox, $this->search_set, $page, $sort_field, $sort_order);
+
     if ($sort_field!=NULL)
       $this->sort_field = $sort_field;
     if ($sort_order!=NULL)
@@ -492,10 +534,10 @@
 
     list($begin, $end) = $this->_get_message_range($max, $page);
 
-  	// mailbox is empty
+    // mailbox is empty
     if ($begin >= $end)
       return array();
-
+      
     $headers_sorted = FALSE;
     $cache_key = $mailbox.'.msg';
     $cache_status = $this->check_cache_status($mailbox, $cache_key);
@@ -538,8 +580,9 @@
       $a_msg_headers = array();
       $deleted_count = $this->_fetch_headers($mailbox, $msgs, $a_msg_headers, $cache_key);
 
-      // delete cached messages with a higher index than $max
-      $this->clear_message_cache($cache_key, $max);
+      // delete cached messages with a higher index than $max+1
+      // Changed $max to $max+1 to fix this bug : #1484295
+      $this->clear_message_cache($cache_key, $max + 1);
 
 
       // kick child process to sync cache
@@ -614,14 +657,14 @@
     $this->_fetch_headers($mailbox, join(',', $msgs), $a_msg_headers, NULL);
 
     // return empty array if no messages found
-	if (!is_array($a_msg_headers) || empty($a_msg_headers))
-		return array();
+    if (!is_array($a_msg_headers) || empty($a_msg_headers))
+      return array();
 
     // if not already sorted
     $a_msg_headers = iil_SortHeaders($a_msg_headers, $this->sort_field, $this->sort_order);
 
-	// only return the requested part of the set
-	return array_slice(array_values($a_msg_headers), $start_msg, min($max-$start_msg, $this->page_size));
+    // only return the requested part of the set
+    return array_slice(array_values($a_msg_headers), $start_msg, min($max-$start_msg, $this->page_size));
     }
 
 
@@ -830,7 +873,20 @@
   function search($mbox_name='', $criteria='ALL', $str=NULL, $charset=NULL)
     {
     $mailbox = $mbox_name ? $this->_mod_mailbox($mbox_name) : $this->mailbox;
-    if ($str && $criteria)
+
+    // have an array of criterias => execute multiple searches
+    if (is_array($criteria) && $str)
+      {
+      $results = array();
+      foreach ($criteria as $crit)
+        if ($search_result = $this->search($mbox_name, $crit, $str, $charset))
+          $results = array_merge($results, $search_result);
+      
+      $results = array_unique($results);
+      $this->set_search_set($criteria, $str, $results, $charset);
+      return $results;
+      }
+    else if ($str && $criteria)
       {
       $search = (!empty($charset) ? "CHARSET $charset " : '') . sprintf("%s {%d}\r\n%s", $criteria, strlen($str), $str);
       $results = $this->_search_index($mailbox, $search);
@@ -839,6 +895,7 @@
       if (empty($results) && !empty($charset) && $charset!='ISO-8859-1')
         $results = $this->search($mbox_name, $criteria, rcube_charset_convert($str, $charset, 'ISO-8859-1'), 'ISO-8859-1');
       
+      $this->set_search_set($criteria, $str, $results, $charset);
       return $results;
       }
     else
@@ -865,6 +922,18 @@
       }
         
     return $a_messages;
+    }
+    
+  
+  /**
+   * Refresh saved search set
+   */
+  function refresh_search()
+    {
+    if (!empty($this->search_subject) && !empty($this->search_string))
+      $this->search_set = $this->search('', $this->search_subject, $this->search_string, $this->search_charset);
+      
+    return $this->get_search_set();
     }
 
 
@@ -920,10 +989,10 @@
     if (!($msg_id = $this->_uid2id($uid)))
       return FALSE;
 
-	$structure_str = iil_C_FetchStructureString($this->conn, $this->mailbox, $msg_id); 
-	$structure = iml_GetRawStructureArray($structure_str);
-	$struct = false;
-	
+    $structure_str = iil_C_FetchStructureString($this->conn, $this->mailbox, $msg_id); 
+    $structure = iml_GetRawStructureArray($structure_str);
+    $struct = false;
+
     // parse structure and add headers
     if (!empty($structure))
       {
@@ -945,9 +1014,9 @@
       if ($this->caching_enabled)
         $this->add_message_cache($cache_key, $msg_id, $headers, $struct);
       }
-	
-	return $struct;
-	}
+      
+    return $struct;
+    }
 
   
   /**
@@ -979,8 +1048,8 @@
       for ($i=0, $count=0; $i<count($part); $i++)
         if (is_array($part[$i]) && count($part[$i]) > 5)
           $struct->parts[] = $this->_structure_part($part[$i], ++$count, $struct->mime_id);
-
-      return $struct;      
+          
+      return $struct;
       }
     
     
@@ -988,32 +1057,33 @@
     $struct->ctype_primary = strtolower($part[0]);
     $struct->ctype_secondary = strtolower($part[1]);
     $struct->mimetype = $struct->ctype_primary.'/'.$struct->ctype_secondary;
-	
+
     // read content type parameters
-	if (is_array($part[2]))
-	  {
-	  $struct->ctype_parameters = array();
+    if (is_array($part[2]))
+      {
+      $struct->ctype_parameters = array();
       for ($i=0; $i<count($part[2]); $i+=2)
         $struct->ctype_parameters[strtolower($part[2][$i])] = $part[2][$i+1];
         
       if (isset($struct->ctype_parameters['charset']))
         $struct->charset = $struct->ctype_parameters['charset'];
-	  }
-	  
-	// read content encoding
-	if (!empty($part[5]) && $part[5]!='NIL')
-	  {
-	  $struct->encoding = strtolower($part[5]);
-	  $struct->headers['content-transfer-encoding'] = $struct->encoding;
-	  }
-	  
-	// get part size
-	if (!empty($part[6]) && $part[6]!='NIL')
-	  $struct->size = intval($part[6]);
-	  
-	// read part disposition
+      }
+    
+    // read content encoding
+    if (!empty($part[5]) && $part[5]!='NIL')
+      {
+      $struct->encoding = strtolower($part[5]);
+      $struct->headers['content-transfer-encoding'] = $struct->encoding;
+      }
+    
+    // get part size
+    if (!empty($part[6]) && $part[6]!='NIL')
+      $struct->size = intval($part[6]);
+
+    // read part disposition
     $di = count($part) - 2;
-    if (is_array($part[$di]))
+    if ((is_array($part[$di]) && count($part[$di]) == 2 && is_array($part[$di][1])) ||
+        (is_array($part[--$di]) && count($part[$di]) == 2))
       {
       $struct->disposition = strtolower($part[$di][0]);
 
@@ -1030,30 +1100,41 @@
         if (is_array($part[8][$i]) && count($part[8][$i]) > 5)
           $struct->parts[] = $this->_structure_part($part[8][$i], ++$count, $struct->mime_id);
       }
-      
-	// get part ID
-	if (!empty($part[3]) && $part[3]!='NIL')
-	  {
-	  $struct->content_id = $part[3];
-	  $struct->headers['content-id'] = $part[3];
-	  
-	  if (empty($struct->disposition))
-	    $struct->disposition = 'inline';
-	  }
+
+    // get part ID
+    if (!empty($part[3]) && $part[3]!='NIL')
+      {
+      $struct->content_id = $part[3];
+      $struct->headers['content-id'] = $part[3];
+    
+      if (empty($struct->disposition))
+        $struct->disposition = 'inline';
+      }
 
     // fetch message headers if message/rfc822
     if ($struct->ctype_primary=='message')
       {
       $headers = iil_C_FetchPartBody($this->conn, $this->mailbox, $this->_msg_id, $struct->mime_id.'.HEADER');
       $struct->headers = $this->_parse_headers($headers);
+      
+      if (is_array($part[8]) && empty($struct->parts))
+        $struct->parts[] = $this->_structure_part($part[8], ++$count, $struct->mime_id);
       }
-  
-  	return $struct;
+      
+    // normalize filename property
+    if (!empty($struct->d_parameters['filename']))
+      $struct->filename = $this->decode_mime_string($struct->d_parameters['filename']);
+    else if (!empty($struct->ctype_parameters['name']))
+      $struct->filename = $this->decode_mime_string($struct->ctype_parameters['name']);
+    else if (!empty($struct->headers['content-description']))
+      $struct->filename = $this->decode_mime_string($struct->headers['content-description']);
+      
+    return $struct;
     }
     
   
   /**
-   * Return a flat array with references to all parts, indexed by part numbmers
+   * Return a flat array with references to all parts, indexed by part numbers
    *
    * @param object Message body structure
    * @return Array with part number -> object pairs
@@ -1302,6 +1383,10 @@
       $this->_clear_messagecount($from_mbox);
       $this->_clear_messagecount($to_mbox);
       }
+      
+    // remove message ids from search set
+    if ($moved && $this->search_set && $from_mbox == $this->mailbox)
+      $this->search_set = array_diff($this->search_set, $a_mids);
 
     // update cached message headers
     $cache_key = $from_mbox.'.msg';
@@ -1310,8 +1395,8 @@
       $start_index = 100000;
       foreach ($a_uids as $uid)
         {
-        if(($index = array_search($uid, $a_cache_index)) !== FALSE)
-	  $start_index = min($index, $start_index);
+        if (($index = array_search($uid, $a_cache_index)) !== FALSE)
+          $start_index = min($index, $start_index);
         }
 
       // clear cache from the lowest index on
@@ -1351,6 +1436,10 @@
       $this->_clear_messagecount($mailbox);
       }
 
+    // remove message ids from search set
+    if ($moved && $this->search_set && $mailbox == $this->mailbox)
+      $this->search_set = array_diff($this->search_set, $a_mids);
+
     // remove deleted messages from cache
     $cache_key = $mailbox.'.msg';
     if ($deleted && ($a_cache_index = $this->get_message_cache_index($cache_key)))
@@ -1358,8 +1447,8 @@
       $start_index = 100000;
       foreach ($a_uids as $uid)
         {
-        $index = array_search($uid, $a_cache_index);
-        $start_index = min($index, $start_index);
+        if (($index = array_search($uid, $a_cache_index)) !== FALSE)
+          $start_index = min($index, $start_index);
         }
 
       // clear cache from the lowest index on
@@ -2029,7 +2118,12 @@
       $j++;
       $address = $val['address'];
       $name = preg_replace(array('/^[\'"]/', '/[\'"]$/'), '', trim($val['name']));
-      $string = $name!==$address ? sprintf('%s <%s>', strpos($name, ',')!==FALSE ? '"'.$name.'"' : $name, $address) : $address;
+      if ($name && $address && $name != $address)
+        $string = sprintf('%s <%s>', strpos($name, ',')!==FALSE ? '"'.$name.'"' : $name, $address);
+      else if ($address)
+        $string = $address;
+      else if ($name)
+        $string = $name;
       
       $out[$j] = array('name' => $name,
                        'mailto' => $address,
@@ -2376,18 +2470,19 @@
 
   function _parse_address_list($str)
     {
-    $a = $this->_explode_quoted_string(',', $str);
+    // remove any newlines and carriage returns before
+    $a = $this->_explode_quoted_string('[,;]', preg_replace( "/[\r\n]/", " ", $str));
     $result = array();
     
     foreach ($a as $key => $val)
       {
-      $val = str_replace("\"<", "\" <", $val);
+      $val = preg_replace("/([\"\w])</", "$1 <", $val);
       $sub_a = $this->_explode_quoted_string(' ', $this->decode_header($val));
       $result[$key]['name'] = '';
 
       foreach ($sub_a as $k => $v)
         {
-        if ((strpos($v, '@') > 0) && (strpos($v, '.') > 0)) 
+        if (strpos($v, '@') > 0)
           $result[$key]['address'] = str_replace('<', '', str_replace('>', '', $v));
         else
           $result[$key]['name'] .= (empty($result[$key]['name'])?'':' ').str_replace("\"",'',stripslashes($v));
@@ -2403,17 +2498,20 @@
 
   function _explode_quoted_string($delimiter, $string)
     {
-    $quotes = explode("\"", $string);
-    foreach ($quotes as $key => $val)
-      if (($key % 2) == 1)
-        $quotes[$key] = str_replace($delimiter, "_!@!_", $quotes[$key]);
-        
-    $string = implode("\"", $quotes);
-
-    $result = explode($delimiter, $string);
-    foreach ($result as $key => $val) 
-      $result[$key] = str_replace("_!@!_", $delimiter, $result[$key]);
+    $result = array();
+    $strlen = strlen($string);
+    for ($q=$p=$i=0; $i < $strlen; $i++)
+    {
+      if ($string{$i} == "\"" && $string{$i-1} != "\\")
+        $q = $q ? false : true;
+      else if (!$q && preg_match("/$delimiter/", $string{$i}))
+      {
+        $result[] = substr($string, $p, $i - $p);
+        $p = $i + 1;
+      }
+    }
     
+    $result[] = substr($string, $p);
     return $result;
     }
   }
@@ -2429,6 +2527,7 @@
   var $ctype_secondary = 'plain';
   var $mimetype = 'text/plain';
   var $disposition = '';
+  var $filename = '';
   var $encoding = '8bit';
   var $charset = '';
   var $size = 0;

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