From 66510e20d36cb8da4f3012ef063de7bfce9b51aa Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Wed, 09 May 2012 07:52:28 -0400
Subject: [PATCH] Merge pull request #1 from Brianetta/de-svn

---
 program/include/rcube_shared.inc |  887 +++++++++++++++++++++-------------------------------------
 1 files changed, 321 insertions(+), 566 deletions(-)

diff --git a/program/include/rcube_shared.inc b/program/include/rcube_shared.inc
index 9278654..176a462 100644
--- a/program/include/rcube_shared.inc
+++ b/program/include/rcube_shared.inc
@@ -2,14 +2,17 @@
 
 /*
  +-----------------------------------------------------------------------+
- | rcube_shared.inc                                                      |
+ | program/include/rcube_shared.inc                                      |
  |                                                                       |
- | This file is part of the RoundCube PHP suite                          |
- | Copyright (C) 2005-2007, RoundCube Dev. - Switzerland                 |
- | Licensed under the GNU GPL                                            |
+ | This file is part of the Roundcube PHP suite                          |
+ | 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.                |
+ | See the README file for a full license statement.                     |
  |                                                                       |
  | CONTENTS:                                                             |
- |   Shared functions and classes used in PHP projects                   |
+ |   Shared functions used by Roundcube Framework                        |
  |                                                                       |
  +-----------------------------------------------------------------------+
  | Author: Thomas Bruederli <roundcube@gmail.com>                        |
@@ -21,484 +24,80 @@
 
 
 /**
- * RoundCube shared functions
- * 
+ * Roundcube shared functions
+ *
  * @package Core
  */
 
 
 /**
- * Send HTTP headers to prevent caching this page
- */
-function send_nocacheing_headers()
-{
-  if (headers_sent())
-    return;
-
-  header("Expires: ".gmdate("D, d M Y H:i:s")." GMT");
-  header("Last-Modified: ".gmdate("D, d M Y H:i:s")." GMT");
-  header("Cache-Control: private, must-revalidate, post-check=0, pre-check=0");
-  header("Pragma: no-cache");
-  
-  // We need to set the following headers to make downloads work using IE in HTTPS mode.
-  if (isset($_SERVER['HTTPS'])) {
-    header('Pragma: ');
-    header('Cache-Control: ');
-  }
-}
-
-
-/**
- * Send header with expire date 30 days in future
- *
- * @param int Expiration time in seconds
- */
-function send_future_expire_header($offset=2600000)
-{
-  if (headers_sent())
-    return;
-
-  header("Expires: ".gmdate("D, d M Y H:i:s", mktime()+$offset)." GMT");
-  header("Cache-Control: max-age=$offset");
-  header("Pragma: ");
-}
-
-
-/**
- * Check request for If-Modified-Since and send an according response.
- * This will terminate the current script if headers match the given values
- *
- * @param int Modified date as unix timestamp
- * @param string Etag value for caching
- */
-function send_modified_header($mdate, $etag=null, $skip_check=false)
-{
-  if (headers_sent())
-    return;
-    
-  $iscached = false;
-  $etag = $etag ? "\"$etag\"" : null;
-
-  if (!$skip_check)
-  {
-    if ($_SERVER['HTTP_IF_MODIFIED_SINCE'] && strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']) >= $mdate)
-      $iscached = true;
-  
-    if ($etag)
-      $iscached = ($_SERVER['HTTP_IF_NONE_MATCH'] == $etag);
-  }
-  
-  if ($iscached)
-    header("HTTP/1.x 304 Not Modified");
-  else
-    header("Last-Modified: ".gmdate("D, d M Y H:i:s", $mdate)." GMT");
-  
-  header("Cache-Control: max-age=0");
-  header("Expires: ");
-  header("Pragma: ");
-  
-  if ($etag)
-    header("Etag: $etag");
-  
-  if ($iscached)
-    {
-    ob_end_clean();
-    exit;
-    }
-}
-
-
-/**
- * Returns whether an $str is a reserved word for any of the version of Javascript or ECMAScript
- * @param str String to check
- * @return boolean True if $str is a reserver word, False if not
- */
-function is_js_reserved_word($str)
-{
-  return in_array($str, array(
-    // ECMASript ver 4 reserved words
-    'as','break','case','catch','class','const','continue',
-    'default','delete','do','else','export','extends','false','finally','for','function',
-    'if','import','in','instanceof','is','namespace','new','null','package','private',
-    'public','return','super','switch','this','throw','true','try','typeof','use','var',
-    'void','while','with',
-    // ECMAScript ver 4 future reserved words
-    'abstract','debugger','enum','goto','implements','interface','native','protected',
-    'synchronized','throws','transient','volatile',
-    // special meaning in some contexts
-    'get','set',
-    // were reserved in ECMAScript ver 3
-    'boolean','byte','char','double','final','float','int','long','short','static'
-  ));
-}
-
-
-/**
- * Convert a variable into a javascript object notation
- *
- * @param mixed Input value
- * @return string Serialized JSON string
- */
-function json_serialize($var)
-{
-  if (is_object($var))
-    $var = get_object_vars($var);
-
-  if (is_array($var))
-  {
-    // empty array
-    if (!sizeof($var))
-      return '[]';
-    else
-    {
-      $keys_arr = array_keys($var);
-      $is_assoc = $have_numeric = 0;
-
-      for ($i=0; $i<sizeof($keys_arr); ++$i)
-      {
-        if (is_numeric($keys_arr[$i]))
-          $have_numeric = 1;
-        if (!is_numeric($keys_arr[$i]) || $keys_arr[$i] != $i)
-          $is_assoc = 1;
-        if ($is_assoc && $have_numeric)
-          break;
-      }
-      
-      $brackets = $is_assoc ? '{}' : '[]';
-      $pairs = array();
-
-      foreach ($var as $key => $value)
-      {
-        // enclose key with quotes if it is not variable-name conform
-        if (!preg_match('/^[_a-zA-Z]{1}[_a-zA-Z0-9]*$/', $key) || is_js_reserved_word($key))
-          $key = "'$key'";
-
-        $pairs[] = sprintf("%s%s", $is_assoc ? "$key:" : '', json_serialize($value));
-      }
-
-      return $brackets{0} . implode(',', $pairs) . $brackets{1};
-    }
-  }
-  else if (!is_string($var) && strval(intval($var)) === strval($var))
-    return $var;
-  else if (is_bool($var))
-    return $var ? '1' : '0';
-  else
-    return "'".JQ($var)."'";
-
-}
-
-
-/**
- * Function to convert an array to a javascript array
- * Actually an alias function for json_serialize()
- * @deprecated
- */
-function array2js($arr, $type='')
-{
-  return json_serialize($arr);
-}
-
-
-/**
  * Similar function as in_array() but case-insensitive
  *
- * @param mixed Needle value
- * @param array Array to search in
+ * @param string $needle    Needle value
+ * @param array  $heystack  Array to search in
+ *
  * @return boolean True if found, False if not
  */
 function in_array_nocase($needle, $haystack)
 {
-  $needle = rc_strtolower($needle);
-  foreach ($haystack as $value)
-    if ($needle===rc_strtolower($value))
-      return true;
-  
-  return false;
+    $needle = mb_strtolower($needle);
+    foreach ($haystack as $value) {
+        if ($needle === mb_strtolower($value)) {
+            return true;
+        }
+    }
+
+    return false;
 }
 
 
 /**
- * Find out if the string content means TRUE or FALSE
+ * Find out if the string content means true or false
  *
- * @param string Input value
- * @return boolean Imagine what!
+ * @param string $str  Input value
+ *
+ * @return boolean Boolean value
  */
 function get_boolean($str)
 {
-  $str = strtolower($str);
-  if(in_array($str, array('false', '0', 'no', 'nein', ''), TRUE))
-    return FALSE;
-  else
-    return TRUE;
+    $str = strtolower($str);
+
+    return !in_array($str, array('false', '0', 'no', 'off', 'nein', ''), true);
 }
 
 
 /**
- * Parse a human readable string for a number of bytes
+ * Parse a human readable string for a number of bytes.
  *
- * @param string Input string
+ * @param string $str  Input string
+ *
  * @return float Number of bytes
  */
 function parse_bytes($str)
 {
-  if (is_numeric($str))
-    return floatval($str);
-    
-  if (preg_match('/([0-9]+)([a-z])/i', $str, $regs))
-  {
-    $bytes = floatval($regs[1]);
-    switch (strtolower($regs[2]))
-    {
-      case 'g':
-        $bytes *= 1073741824;
-        break;
-      case 'm':
-        $bytes *= 1048576;
-        break;
-      case 'k':
-        $bytes *= 1024;
-        break;
+    if (is_numeric($str)) {
+        return floatval($str);
     }
-  }
 
-  return floatval($bytes);
-}
-    
-/**
- * Create a human readable string for a number of bytes
- *
- * @param int Number of bytes
- * @return string Byte string
- */
-function show_bytes($bytes)
-{
-  if ($bytes > 1073741824)
-  {
-    $gb = $bytes/1073741824;
-    $str = sprintf($gb>=10 ? "%d " : "%.1f ", $gb) . rcube_label('GB');
-  }
-  else if ($bytes > 1048576)
-  {
-    $mb = $bytes/1048576;
-    $str = sprintf($mb>=10 ? "%d " : "%.1f ", $mb) . rcube_label('MB');
-  }
-  else if ($bytes > 1024)
-    $str = sprintf("%d ",  round($bytes/1024)) . rcube_label('KB');
-  else
-    $str = sprintf('%d ', $bytes) . rcube_label('B');
-
-  return $str;
-}
-
-
-/**
- * Convert paths like ../xxx to an absolute path using a base url
- *
- * @param string Relative path
- * @param string Base URL
- * @return string Absolute URL
- */
-function make_absolute_url($path, $base_url)
-{
-  $host_url = $base_url;
-  $abs_path = $path;
-  
-  // check if path is an absolute URL
-  if (preg_match('/^[fhtps]+:\/\//', $path))
-    return $path;
-
-  // cut base_url to the last directory
-  if (strrpos($base_url, '/')>7)
-  {
-    $host_url = substr($base_url, 0, strpos($base_url, '/'));
-    $base_url = substr($base_url, 0, strrpos($base_url, '/'));
-  }
-
-  // $path is absolute
-  if ($path{0}=='/')
-    $abs_path = $host_url.$path;
-  else
-  {
-    // strip './' because its the same as ''
-    $path = preg_replace('/^\.\//', '', $path);
-
-    if (preg_match_all('/\.\.\//', $path, $matches, PREG_SET_ORDER))
-      foreach ($matches as $a_match)
-      {
-        if (strrpos($base_url, '/'))
-          $base_url = substr($base_url, 0, strrpos($base_url, '/'));
-        
-        $path = substr($path, 3);
-      }
-
-    $abs_path = $base_url.'/'.$path;
-  }
-    
-  return $abs_path;
-}
-
-
-/**
- * Wrapper function for strlen
- */
-function rc_strlen($str)
-{
-  if (function_exists('mb_strlen'))
-    return mb_strlen($str);
-  else
-    return strlen($str);
-}
-  
-/**
- * Wrapper function for strtolower
- */
-function rc_strtolower($str)
-{
-  if (function_exists('mb_strtolower'))
-    return mb_strtolower($str);
-  else
-    return strtolower($str);
-}
-
-/**
- * Wrapper function for strtoupper
- */
-function rc_strtoupper($str)
-{
-  if (function_exists('mb_strtoupper'))
-    return mb_strtoupper($str);
-  else
-    return strtoupper($str);
-}
-
-/**
- * Wrapper function for substr
- */
-function rc_substr($str, $start, $len=null)
-{
-  if (function_exists('mb_substr'))
-    return mb_substr($str, $start, $len);
-  else
-    return substr($str, $start, $len);
-}
-
-/**
- * Wrapper function for strpos
- */
-function rc_strpos($haystack, $needle, $offset=0)
-{
-  if (function_exists('mb_strpos'))
-    return mb_strpos($haystack, $needle, $offset);
-  else
-    return strpos($haystack, $needle, $offset);
-}
-
-/**
- * Wrapper function for strrpos
- */
-function rc_strrpos($haystack, $needle, $offset=0)
-{
-  if (function_exists('mb_strrpos'))
-    return mb_strrpos($haystack, $needle, $offset);
-  else
-    return strrpos($haystack, $needle, $offset);
-}
-
-/**
- * Wrapper function for wordwrap
- */
-function rc_wordwrap($string, $width=75, $break="\n", $cut=false)
-{
-  if (!function_exists('mb_substr') || !function_exists('mb_strlen'))
-    return wordwrap($string, $width, $break, $cut);
-    
-  $para = explode($break, $string);
-  $string = '';
-  while (count($para)) {
-    $list = explode(' ', array_shift($para));
-    $len = 0;
-    while (count($list)) {
-      $line = array_shift($list);
-      $l = mb_strlen($line);
-      $newlen = $len + $l + ($len ? 1 : 0);
-
-      if ($newlen <= $width) {
-        $string .= ($len ? ' ' : '').$line;
-        $len += ($len ? 1 : 0) + $l;
-      } else {
-	if ($l > $width) {
-	  if ($cut) {
-	    $start = 0;
-	    while ($l) {
-	      $str = mb_substr($line, $start, $width);
-	      $strlen = mb_strlen($str);
-	      $string .= ($len ? $break : '').$str;
-	      $start += $strlen;
-	      $l -= $strlen;
-	      $len = $strlen;
-	    }
-	  } else {
-            $string .= ($len ? $break : '').$line;
-	    if (count($list)) $string .= $break;
-	    $len = 0;
-	  }
-	} else {
-          $string .= $break.$line;
-	  $len = $l;
+    if (preg_match('/([0-9\.]+)\s*([a-z]*)/i', $str, $regs)) {
+        $bytes = floatval($regs[1]);
+        switch (strtolower($regs[2])) {
+        case 'g':
+        case 'gb':
+            $bytes *= 1073741824;
+            break;
+        case 'm':
+        case 'mb':
+            $bytes *= 1048576;
+            break;
+        case 'k':
+        case 'kb':
+            $bytes *= 1024;
+            break;
         }
-      }
     }
-    if (count($para)) $string .= $break;
-  }
-  return $string;
-}
 
-/**
- * Read a specific HTTP request header
- *
- * @access static
- * @param  string $name Header name
- * @return mixed  Header value or null if not available
- */
-function rc_request_header($name)
-{
-  if (function_exists('getallheaders'))
-  {
-    $hdrs = array_change_key_case(getallheaders(), CASE_UPPER);
-    $key  = strtoupper($name);
-  }
-  else
-  {
-    $key  = 'HTTP_' . strtoupper(strtr($name, '-', '_'));
-    $hdrs = array_change_key_case($_SERVER, CASE_UPPER);
-  }
-
-  return $hdrs[$key];
-  }
-
-
-/**
- * Replace the middle part of a string with ...
- * if it is longer than the allowed length
- *
- * @param string Input string
- * @param int    Max. length
- * @param string Replace removed chars with this
- * @return string Abbreviated string
- */
-function abbreviate_string($str, $maxlength, $place_holder='...')
-{
-  $length = rc_strlen($str);
-  $first_part_length = floor($maxlength/2) - rc_strlen($place_holder);
-  
-  if ($length > $maxlength)
-  {
-    $second_starting_location = $length - $maxlength + $first_part_length + 1;
-    $str = rc_substr($str, 0, $first_part_length) . $place_holder . rc_substr($str, $second_starting_location, $length);
-  }
-
-  return $str;
+    return floatval($bytes);
 }
 
 
@@ -518,169 +117,325 @@
 {
   return preg_replace('/\/$/', '', $str);
 }
-  
+
 
 /**
  * Delete all files within a folder
  *
  * @param string Path to directory
+ *
  * @return boolean True on success, False if directory was not found
  */
 function clear_directory($dir_path)
 {
-  $dir = @opendir($dir_path);
-  if(!$dir) return FALSE;
+    $dir = @opendir($dir_path);
+    if (!$dir) {
+        return false;
+    }
 
-  while ($file = readdir($dir))
-    if (strlen($file)>2)
-      unlink("$dir_path/$file");
+    while ($file = readdir($dir)) {
+        if (strlen($file) > 2) {
+            unlink("$dir_path/$file");
+        }
+    }
 
-  closedir($dir);
-  return TRUE;
+    closedir($dir);
+
+    return true;
 }
 
 
 /**
- * Create a unix timestamp with a specified offset from now
+ * Returns number of seconds for a specified offset string.
  *
- * @param string String representation of the offset (e.g. 20min, 5h, 2days)
- * @param int Factor to multiply with the offset
+ * @param string $str  String representation of the offset (e.g. 20min, 5h, 2days, 1week)
+ *
+ * @return int Number of seconds
+ */
+function get_offset_sec($str)
+{
+    if (preg_match('/^([0-9]+)\s*([smhdw])/i', $str, $regs)) {
+        $amount = (int) $regs[1];
+        $unit   = strtolower($regs[2]);
+    }
+    else {
+        $amount = (int) $str;
+        $unit   = 's';
+    }
+
+    switch ($unit) {
+    case 'w':
+        $amount *= 7;
+    case 'd':
+        $amount *= 24;
+    case 'h':
+        $amount *= 60;
+    case 'm':
+        $amount *= 60;
+    }
+
+    return $amount;
+}
+
+
+/**
+ * Create a unix timestamp with a specified offset from now.
+ *
+ * @param string $offset_str  String representation of the offset (e.g. 20min, 5h, 2days)
+ * @param int    $factor      Factor to multiply with the offset
+ *
  * @return int Unix timestamp
  */
 function get_offset_time($offset_str, $factor=1)
-  {
-  if (preg_match('/^([0-9]+)\s*([smhdw])/i', $offset_str, $regs))
-  {
-    $amount = (int)$regs[1];
-    $unit = strtolower($regs[2]);
-  }
-  else
-  {
-    $amount = (int)$offset_str;
-    $unit = 's';
-  }
-    
-  $ts = mktime();
-  switch ($unit)
-  {
-    case 'w':
-      $amount *= 7;
-    case 'd':
-      $amount *= 24;
-    case 'h':
-      $amount *= 60;
-    case 'm':
-      $amount *= 60;
-    case 's':
-      $ts += $amount * $factor;
-  }
-
-  return $ts;
+{
+    return time() + get_offset_sec($offset_str) * $factor;
 }
 
 
 /**
- * A method to guess the mime_type of an attachment.
+ * Truncate string if it is longer than the allowed length.
+ * Replace the middle or the ending part of a string with a placeholder.
  *
- * @param string $path     Path to the file.
- * @param string $name     File name (with suffix)
- * @param string $failover Mime type supplied for failover.
+ * @param string $str         Input string
+ * @param int    $maxlength   Max. length
+ * @param string $placeholder Replace removed chars with this
+ * @param bool   $ending      Set to True if string should be truncated from the end
  *
- * @return string
- * @author Till Klampaeckel <till@php.net>
- * @see    http://de2.php.net/manual/en/ref.fileinfo.php
- * @see    http://de2.php.net/mime_content_type
+ * @return string Abbreviated string
  */
-function rc_mime_content_type($path, $name, $failover = 'application/octet-stream')
+function abbreviate_string($str, $maxlength, $placeholder='...', $ending=false)
 {
-    $mime_type = null;
-    $mime_magic = rcmail::get_instance()->config->get('mime_magic');
-    $mime_ext = @include(RCMAIL_CONFIG_DIR . '/mimetypes.php');
-    $suffix = $name ? substr($name, strrpos($name, '.')+1) : '*';
+    $length = mb_strlen($str);
 
-    // use file name suffix with hard-coded mime-type map
-    if (is_array($mime_ext)) {
-        $mime_type = $mime_ext[$suffix];
-    }
-    // try fileinfo extension if available
-    if (!$mime_type) {
-        if (!extension_loaded('fileinfo')) {
-            @dl('fileinfo.' . PHP_SHLIB_SUFFIX);
+    if ($length > $maxlength) {
+        if ($ending) {
+            return mb_substr($str, 0, $maxlength) . $placeholder;
         }
-        if (function_exists('finfo_open')) {
-            if ($finfo = finfo_open(FILEINFO_MIME, $mime_magic)) {
-                $mime_type = finfo_file($finfo, $path);
-                finfo_close($finfo);
+
+        $placeholder_length = mb_strlen($placeholder);
+        $first_part_length  = floor(($maxlength - $placeholder_length)/2);
+        $second_starting_location = $length - $maxlength + $first_part_length + $placeholder_length;
+
+        $str = mb_substr($str, 0, $first_part_length) . $placeholder . mb_substr($str, $second_starting_location);
+    }
+
+    return $str;
+}
+
+
+/**
+ * Get all keys from array (recursive).
+ *
+ * @param array $array  Input array
+ *
+ * @return array List of array keys
+ */
+function array_keys_recursive($array)
+{
+    $keys = array();
+
+    if (!empty($array)) {
+        foreach ($array as $key => $child) {
+            $keys[] = $key;
+            foreach (array_keys_recursive($child) as $val) {
+                $keys[] = $val;
             }
         }
     }
-    // try PHP's mime_content_type
-    if (!$mime_type && function_exists('mime_content_type')) {
-      $mime_type = mime_content_type($path); 
-    }
-    // fall back to user-submitted string
-    if (!$mime_type) {
-        $mime_type = $failover;
-    }
 
-    return $mime_type;
+    return $keys;
 }
 
 
 /**
- * A method to guess encoding of a string.
- *
- * @param string $string     	String.
- * @param string $failover 	Default result for failover.
- *
- * @return string
+ * Remove all non-ascii and non-word chars except ., -, _
  */
-function rc_detect_encoding($string, $failover='')
+function asciiwords($str, $css_id = false, $replace_with = '')
 {
-    if (!function_exists('mb_detect_encoding')) {
-        return $failover;
+    $allowed = 'a-z0-9\_\-' . (!$css_id ? '\.' : '');
+    return preg_replace("/[^$allowed]/i", $replace_with, $str);
+}
+
+
+/**
+ * Remove single and double quotes from given string
+ *
+ * @param string Input value
+ *
+ * @return string Dequoted string
+ */
+function strip_quotes($str)
+{
+    return str_replace(array("'", '"'), '', $str);
+}
+
+
+/**
+ * Remove new lines characters from given string
+ *
+ * @param string $str  Input value
+ *
+ * @return string Stripped string
+ */
+function strip_newlines($str)
+{
+    return preg_replace('/[\r\n]/', '', $str);
+}
+
+
+/**
+ * Compose a valid representation of name and e-mail address
+ *
+ * @param string $email  E-mail address
+ * @param string $name   Person name
+ *
+ * @return string Formatted string
+ */
+function format_email_recipient($email, $name = '')
+{
+    $email = trim($email);
+
+    if ($name && $name != $email) {
+        // Special chars as defined by RFC 822 need to in quoted string (or escaped).
+        if (preg_match('/[\(\)\<\>\\\.\[\]@,;:"]/', $name)) {
+            $name = '"'.addcslashes($name, '"').'"';
+        }
+
+        return "$name <$email>";
     }
 
-    // FIXME: the order is important, because sometimes 
-    // iso string is detected as euc-jp and etc.
-    $enc = array(
-      'UTF-8', 'SJIS', 'BIG5', 'GB2312',
-      'ISO-8859-1', 'ISO-8859-2', 'ISO-8859-3', 'ISO-8859-4',
-      'ISO-8859-5', 'ISO-8859-6', 'ISO-8859-7', 'ISO-8859-8', 'ISO-8859-9',
-      'ISO-8859-10', 'ISO-8859-13', 'ISO-8859-14', 'ISO-8859-15', 'ISO-8859-16',
-      'WINDOWS-1252', 'WINDOWS-1251', 'EUC-JP', 'EUC-TW', 'KOI8-R', 
-      'ISO-2022-KR', 'ISO-2022-JP'
+    return $email;
+}
+
+
+/**
+ * mbstring replacement functions
+ */
+if (!extension_loaded('mbstring'))
+{
+    function mb_strlen($str)
+    {
+        return strlen($str);
+    }
+
+    function mb_strtolower($str)
+    {
+        return strtolower($str);
+    }
+
+    function mb_strtoupper($str)
+    {
+        return strtoupper($str);
+    }
+
+    function mb_substr($str, $start, $len=null)
+    {
+        return substr($str, $start, $len);
+    }
+
+    function mb_strpos($haystack, $needle, $offset=0)
+    {
+        return strpos($haystack, $needle, $offset);
+    }
+
+    function mb_strrpos($haystack, $needle, $offset=0)
+    {
+        return strrpos($haystack, $needle, $offset);
+    }
+}
+
+/**
+ * intl replacement functions
+ */
+
+if (!function_exists('idn_to_utf8'))
+{
+    function idn_to_utf8($domain, $flags=null)
+    {
+        static $idn, $loaded;
+
+        if (!$loaded) {
+            $idn = new Net_IDNA2();
+            $loaded = true;
+        }
+
+        if ($idn && $domain && preg_match('/(^|\.)xn--/i', $domain)) {
+            try {
+                $domain = $idn->decode($domain);
+            }
+            catch (Exception $e) {
+            }
+        }
+        return $domain;
+    }
+}
+
+if (!function_exists('idn_to_ascii'))
+{
+    function idn_to_ascii($domain, $flags=null)
+    {
+        static $idn, $loaded;
+
+        if (!$loaded) {
+            $idn = new Net_IDNA2();
+            $loaded = true;
+        }
+
+        if ($idn && $domain && preg_match('/[^\x20-\x7E]/', $domain)) {
+            try {
+                $domain = $idn->encode($domain);
+            }
+            catch (Exception $e) {
+            }
+        }
+        return $domain;
+    }
+}
+
+/**
+ * Use PHP5 autoload for dynamic class loading
+ *
+ * @todo Make Zend, PEAR etc play with this
+ * @todo Make our classes conform to a more straight forward CS.
+ */
+function rcube_autoload($classname)
+{
+    $filename = preg_replace(
+        array(
+            '/MDB2_(.+)/',
+            '/Mail_(.+)/',
+            '/Net_(.+)/',
+            '/Auth_(.+)/',
+            '/^html_.+/',
+            '/^utf8$/',
+        ),
+        array(
+            'MDB2/\\1',
+            'Mail/\\1',
+            'Net/\\1',
+            'Auth/\\1',
+            'html',
+            'utf8.class',
+        ),
+        $classname
     );
 
-    $result = mb_detect_encoding($string, join(',', $enc));
+    if ($fp = @fopen("$filename.php", 'r', true)) {
+        fclose($fp);
+        include_once "$filename.php";
+        return true;
+    }
 
-    return $result ? $result : $failover;
+    return false;
 }
-
 
 /**
- * Explode quoted string
- * 
- * @param string Delimiter expression string for preg_match()
- * @param string Input string
+ * Local callback function for PEAR errors
  */
-function rcube_explode_quoted_string($delimiter, $string)
+function rcube_pear_error($err)
 {
-  $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;
+    error_log(sprintf("%s (%s): %s",
+        $err->getMessage(),
+        $err->getCode(),
+        $err->getUserinfo()), 0);
 }
-
-?>

--
Gitblit v1.9.1