+-----------------------------------------------------------------------+
| rcube_shared.inc |
| |
- | This file is part of the RoundCube PHP suite |
- | Copyright (C) 2005-2007, RoundCube Dev. - Switzerland |
+ | This file is part of the Roundcube PHP suite |
+ | Copyright (C) 2005-2007, The Roundcube Dev Team |
| Licensed under the GNU GPL |
| |
| CONTENTS: |
| Author: Thomas Bruederli <roundcube@gmail.com> |
+-----------------------------------------------------------------------+
- $Id: rcube_shared.inc 1255 2008-04-05 12:49:21Z thomasb $
+ $Id: rcube_shared.inc 5274 2011-09-23 10:11:27Z alec $
*/
/**
- * RoundCube shared functions
- *
- * @package Core
- */
-
-
-/**
- * Provide details about the client's browser
+ * Roundcube shared functions
*
- * @return array Key-value pairs of browser properties
+ * @package Core
*/
-function rcube_browser()
-{
- $HTTP_USER_AGENT = $_SERVER['HTTP_USER_AGENT'];
-
- $bw['ver'] = 0;
- $bw['win'] = stristr($HTTP_USER_AGENT, 'win');
- $bw['mac'] = stristr($HTTP_USER_AGENT, 'mac');
- $bw['linux'] = stristr($HTTP_USER_AGENT, 'linux');
- $bw['unix'] = stristr($HTTP_USER_AGENT, 'unix');
-
- $bw['ns4'] = stristr($HTTP_USER_AGENT, 'mozilla/4') && !stristr($HTTP_USER_AGENT, 'msie');
- $bw['ns'] = ($bw['ns4'] || stristr($HTTP_USER_AGENT, 'netscape'));
- $bw['ie'] = stristr($HTTP_USER_AGENT, 'msie');
- $bw['mz'] = stristr($HTTP_USER_AGENT, 'mozilla/5');
- $bw['opera'] = stristr($HTTP_USER_AGENT, 'opera');
- $bw['safari'] = stristr($HTTP_USER_AGENT, 'safari');
-
- if($bw['ns'])
- {
- $test = eregi("mozilla\/([0-9\.]+)", $HTTP_USER_AGENT, $regs);
- $bw['ver'] = $test ? (float)$regs[1] : 0;
- }
- if($bw['mz'])
- {
- $test = ereg("rv:([0-9\.]+)", $HTTP_USER_AGENT, $regs);
- $bw['ver'] = $test ? (float)$regs[1] : 0;
- }
- if($bw['ie'])
- {
- $test = eregi("msie ([0-9\.]+)", $HTTP_USER_AGENT, $regs);
- $bw['ver'] = $test ? (float)$regs[1] : 0;
- }
- if($bw['opera'])
- {
- $test = eregi("opera ([0-9\.]+)", $HTTP_USER_AGENT, $regs);
- $bw['ver'] = $test ? (float)$regs[1] : 0;
- }
-
- if(eregi(" ([a-z]{2})-([a-z]{2})", $HTTP_USER_AGENT, $regs))
- $bw['lang'] = $regs[1];
- else
- $bw['lang'] = 'en';
-
- $bw['dom'] = ($bw['mz'] || $bw['safari'] || ($bw['ie'] && $bw['ver']>=5) || ($bw['opera'] && $bw['ver']>=7));
- $bw['pngalpha'] = $bw['mz'] || $bw['safari'] || ($bw['ie'] && $bw['ver']>=5.5) ||
- ($bw['ie'] && $bw['ver']>=5 && $bw['mac']) || ($bw['opera'] && $bw['ver']>=7) ? TRUE : FALSE;
-
- return $bw;
-}
-
-
-/**
- * Get localized text in the desired language
- *
- * @param mixed Named parameters array or label name
- * @return string Localized text
- */
-function rcube_label($attrib)
-{
- global $sess_user_lang, $INSTALL_PATH, $OUTPUT;
- static $sa_text_data, $s_language, $utf8_decode;
-
- // extract attributes
- if (is_string($attrib))
- $attrib = array('name' => $attrib);
-
- $nr = is_numeric($attrib['nr']) ? $attrib['nr'] : 1;
- $vars = isset($attrib['vars']) ? $attrib['vars'] : '';
-
- $command_name = !empty($attrib['command']) ? $attrib['command'] : NULL;
- $alias = $attrib['name'] ? $attrib['name'] : ($command_name && $command_label_map[$command_name] ? $command_label_map[$command_name] : '');
-
-
- // load localized texts
- if (!$sa_text_data || $s_language != $sess_user_lang)
- {
- $sa_text_data = array();
-
- // get english labels (these should be complete)
- @include($INSTALL_PATH.'program/localization/en_US/labels.inc');
- @include($INSTALL_PATH.'program/localization/en_US/messages.inc');
-
- if (is_array($labels))
- $sa_text_data = $labels;
- if (is_array($messages))
- $sa_text_data = array_merge($sa_text_data, $messages);
-
- // include user language files
- if ($sess_user_lang!='en' && is_dir($INSTALL_PATH.'program/localization/'.$sess_user_lang))
- {
- include_once($INSTALL_PATH.'program/localization/'.$sess_user_lang.'/labels.inc');
- include_once($INSTALL_PATH.'program/localization/'.$sess_user_lang.'/messages.inc');
-
- if (is_array($labels))
- $sa_text_data = array_merge($sa_text_data, $labels);
- if (is_array($messages))
- $sa_text_data = array_merge($sa_text_data, $messages);
- }
-
- $s_language = $sess_user_lang;
- }
-
- // text does not exist
- if (!($text_item = $sa_text_data[$alias]))
- {
- /*
- raise_error(array(
- 'code' => 500,
- 'type' => 'php',
- 'line' => __LINE__,
- 'file' => __FILE__,
- 'message' => "Missing localized text for '$alias' in '$sess_user_lang'"), TRUE, FALSE);
- */
- return "[$alias]";
- }
-
- // make text item array
- $a_text_item = is_array($text_item) ? $text_item : array('single' => $text_item);
-
- // decide which text to use
- if ($nr==1)
- $text = $a_text_item['single'];
- else if ($nr>0)
- $text = $a_text_item['multiple'];
- else if ($nr==0)
- {
- if ($a_text_item['none'])
- $text = $a_text_item['none'];
- else if ($a_text_item['single'])
- $text = $a_text_item['single'];
- else if ($a_text_item['multiple'])
- $text = $a_text_item['multiple'];
- }
-
- // default text is single
- if ($text=='')
- $text = $a_text_item['single'];
-
- // replace vars in text
- if (is_array($attrib['vars']))
- {
- foreach ($attrib['vars'] as $var_key=>$var_value)
- $a_replace_vars[substr($var_key, 0, 1)=='$' ? substr($var_key, 1) : $var_key] = $var_value;
- }
-
- if ($a_replace_vars)
- $text = preg_replace('/\${?([_a-z]{1}[_a-z0-9]*)}?/ei', '$a_replace_vars["\1"]', $text);
-
- // remove variables in text which were not available in arg $vars and $nr
- eval("\$text = <<<EOF
-$text
-EOF;
-");
-
- // format output
- if (($attrib['uppercase'] && strtolower($attrib['uppercase']=='first')) || $attrib['ucfirst'])
- return ucfirst($text);
- else if ($attrib['uppercase'])
- return strtoupper($text);
- else if ($attrib['lowercase'])
- return strtolower($text);
-
- return $text;
-}
/**
*/
function send_nocacheing_headers()
{
+ global $OUTPUT;
+
if (headers_sent())
return;
header("Expires: ".gmdate("D, d M Y H:i:s")." GMT");
header("Last-Modified: ".gmdate("D, d M Y H:i:s")." GMT");
- header("Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0");
- header("Pragma: no-cache");
+ // Request browser to disable DNS prefetching (CVE-2010-0464)
+ header("X-DNS-Prefetch-Control: off");
+
+ // We need to set the following headers to make downloads work using IE in HTTPS mode.
+ if ($OUTPUT->browser->ie && rcube_https_check()) {
+ header('Pragma: private');
+ header("Cache-Control: private, must-revalidate");
+ } else {
+ header("Cache-Control: private, no-cache, must-revalidate, post-check=0, pre-check=0");
+ header("Pragma: no-cache");
+ }
}
}
-/**
- * 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)
-{
- if (headers_sent())
- return;
-
- $iscached = false;
- if ($_SERVER['HTTP_IF_MODIFIED_SINCE'] && strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']) >= $mdate)
- $iscached = true;
-
- $etag = $etag ? "\"$etag\"" : null;
- 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;
- }
-}
-
-
-/**
- * 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 => $value)
- {
- // enclose key with quotes if it is not variable-name conform
- if (!ereg("^[_a-zA-Z]{1}[_a-zA-Z0-9]*$", $key) /* || is_js_reserved_word($key) */)
- $key = "'$key'";
-
- $pairs[] = sprintf("%s%s", $is_assoc ? "$key:" : '', json_serialize($value));
- }
-
- return $brackets{0} . implode(',', $pairs) . $brackets{1};
- }
- }
- else if (is_numeric($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
*
*/
function in_array_nocase($needle, $haystack)
{
+ $needle = mb_strtolower($needle);
foreach ($haystack as $value)
- if (strtolower($needle)===strtolower($value))
+ if ($needle===mb_strtolower($value))
return true;
-
+
return false;
}
function get_boolean($str)
{
$str = strtolower($str);
- if(in_array($str, array('false', '0', 'no', 'nein', ''), TRUE))
+ if (in_array($str, array('false', '0', 'no', 'off', 'nein', ''), TRUE))
return FALSE;
else
return TRUE;
* Parse a human readable string for a number of bytes
*
* @param string Input string
- * @return int Number of bytes
+ * @return float Number of bytes
*/
function parse_bytes($str)
{
if (is_numeric($str))
- return intval($str);
-
- if (preg_match('/([0-9]+)([a-z])/i', $str, $regs))
+ return floatval($str);
+
+ 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':
$bytes *= 1024;
break;
}
}
- return intval($bytes);
+ return floatval($bytes);
}
-
+
/**
* Create a human readable string for a number of bytes
*
*/
function show_bytes($bytes)
{
- if ($bytes > 1073741824)
+ if ($bytes >= 1073741824)
{
$gb = $bytes/1073741824;
- $str = sprintf($gb>=10 ? "%d GB" : "%.1f GB", $gb);
+ $str = sprintf($gb>=10 ? "%d " : "%.1f ", $gb) . rcube_label('GB');
}
- else if ($bytes > 1048576)
+ else if ($bytes >= 1048576)
{
$mb = $bytes/1048576;
- $str = sprintf($mb>=10 ? "%d MB" : "%.1f MB", $mb);
+ $str = sprintf($mb>=10 ? "%d " : "%.1f ", $mb) . rcube_label('MB');
}
- else if ($bytes > 1024)
- $str = sprintf("%d KB", round($bytes/1024));
+ else if ($bytes >= 1024)
+ $str = sprintf("%d ", round($bytes/1024)) . rcube_label('KB');
else
- $str = sprintf('%d B', $bytes);
+ $str = sprintf('%d ', $bytes) . rcube_label('B');
return $str;
}
-
/**
* Convert paths like ../xxx to an absolute path using a base url
*
{
$host_url = $base_url;
$abs_path = $path;
-
+
// check if path is an absolute URL
if (preg_match('/^[fhtps]+:\/\//', $path))
return $path;
// cut base_url to the last directory
- if (strpos($base_url, '/')>7)
+ if (strrpos($base_url, '/')>7)
{
- $host_url = substr($base_url, 0, strpos($base_url, '/'));
+ $host_url = substr($base_url, 0, strpos($base_url, '/', 7));
$base_url = substr($base_url, 0, strrpos($base_url, '/'));
}
// $path is absolute
- if ($path{0}=='/')
+ if ($path[0] == '/')
$abs_path = $host_url.$path;
else
{
{
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($str);
-}
-
-/**
- * Wrapper function for substr
- */
-function rc_substr($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);
+ return $abs_path;
}
/**
- * Wrapper function for strrpos
+ * Wrapper function for wordwrap
*/
-function rc_strrpos($haystack, $needle, $offset=0)
+function rc_wordwrap($string, $width=75, $break="\n", $cut=false)
{
- if (function_exists('mb_strrpos'))
- return mb_strrpos($haystack, $needle, $offset);
- else
- return strrpos($haystack, $needle, $offset);
+ $para = explode($break, $string);
+ $string = '';
+ while (count($para)) {
+ $line = array_shift($para);
+ if ($line[0] == '>') {
+ $string .= $line.$break;
+ continue;
+ }
+ $list = explode(' ', $line);
+ $len = 0;
+ while (count($list)) {
+ $line = array_shift($list);
+ $l = mb_strlen($line);
+ $newlen = $len + $l + ($len ? 1 : 0);
+
+ if ($newlen <= $width) {
+ $string .= ($len ? ' ' : '').$line;
+ $len += (1 + $l);
+ } else {
+ if ($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 = $l;
+ }
+ }
+ }
+ if (count($para)) $string .= $break;
+ }
+ return $string;
}
-
/**
* Read a specific HTTP request header
*
}
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 $str;
}
{
return preg_replace('/\/$/', '', $str);
}
-
+
/**
* Delete all files within a folder
* @return int Unix timestamp
*/
function get_offset_time($offset_str, $factor=1)
- {
+{
if (preg_match('/^([0-9]+)\s*([smhdw])/i', $offset_str, $regs))
{
$amount = (int)$regs[1];
$amount = (int)$offset_str;
$unit = 's';
}
-
+
$ts = mktime();
switch ($unit)
{
/**
- * Return the last occurence of a string in another string
+ * Truncate string if it is longer than the allowed length
+ * Replace the middle or the ending part of a string with a placeholder
*
- * @param haystack string string in which to search
- * @param needle string string for which to search
- * @return index of needle within haystack, or false if not found
+ * @param string Input string
+ * @param int Max. length
+ * @param string Replace removed chars with this
+ * @param bool Set to True if string should be truncated from the end
+ * @return string Abbreviated string
*/
-function strrstr($haystack, $needle)
+function abbreviate_string($str, $maxlength, $place_holder='...', $ending=false)
{
- $pver = phpversion();
- if ($pver[0] >= 5)
- return strrpos($haystack, $needle);
- else
+ $length = mb_strlen($str);
+
+ if ($length > $maxlength)
{
- $index = strpos(strrev($haystack), strrev($needle));
- if($index === false)
- return false;
-
- $index = strlen($haystack) - strlen($needle) - $index;
- return $index;
+ if ($ending)
+ return mb_substr($str, 0, $maxlength) . $place_holder;
+
+ $place_holder_length = mb_strlen($place_holder);
+ $first_part_length = floor(($maxlength - $place_holder_length)/2);
+ $second_starting_location = $length - $maxlength + $first_part_length + $place_holder_length;
+ $str = mb_substr($str, 0, $first_part_length) . $place_holder . mb_substr($str, $second_starting_location);
}
+
+ return $str;
}
+
/**
* A method to guess the mime_type of an attachment.
*
- * @param string $path Path to the file.
- * @param string $failover Mime type supplied for failover.
+ * @param string $path Path to the file.
+ * @param string $name File name (with suffix)
+ * @param string $failover Mime type supplied for failover.
+ * @param string $is_stream Set to True if $path contains file body
*
* @return string
* @author Till Klampaeckel <till@php.net>
* @see http://de2.php.net/manual/en/ref.fileinfo.php
* @see http://de2.php.net/mime_content_type
*/
-function rc_mime_content_type($path, $failover = 'unknown/unknown')
+function rc_mime_content_type($path, $name, $failover = 'application/octet-stream', $is_stream=false)
{
- global $CONFIG;
-
- $mime_magic = $CONFIG['mime_magic'];
-
- if (function_exists('mime_content_type')) {
- return mime_content_type($path);
+ $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($name, '.')+1) : '*';
+
+ // use file name suffix with hard-coded mime-type map
+ if (is_array($mime_ext)) {
+ $mime_type = $mime_ext[$suffix];
}
- if (!extension_loaded('fileinfo')) {
- if (!dl('fileinfo.' . PHP_SHLIB_SUFFIX)) {
- return $failover;
+ // try fileinfo extension if available
+ if (!$mime_type && function_exists('finfo_open')) {
+ if ($finfo = finfo_open(FILEINFO_MIME, $mime_magic)) {
+ if ($is_stream)
+ $mime_type = finfo_buffer($finfo, $path);
+ else
+ $mime_type = finfo_file($finfo, $path);
+ finfo_close($finfo);
}
}
- $finfo = finfo_open(FILEINFO_MIME, $mime_magic);
- if (!$finfo) {
- return $failover;
+ // try PHP's mime_content_type
+ if (!$mime_type && !$is_stream && function_exists('mime_content_type')) {
+ $mime_type = @mime_content_type($path);
}
- $mime_type = finfo_file($finfo,$path);
+ // fall back to user-submitted string
if (!$mime_type) {
- return $failover;
+ $mime_type = $failover;
+ }
+ else {
+ // Sometimes (PHP-5.3?) content-type contains charset definition,
+ // Remove it (#1487122) also "charset=binary" is useless
+ $mime_type = array_shift(preg_split('/[; ]/', $mime_type));
}
- finfo_close($finfo);
return $mime_type;
}
-?>
\ No newline at end of file
+
+/**
+ * Detect image type of the given binary data by checking magic numbers
+ *
+ * @param string Binary file content
+ * @return string Detected mime-type or jpeg as fallback
+ */
+function rc_image_content_type($data)
+{
+ $type = 'jpeg';
+ if (preg_match('/^\x89\x50\x4E\x47/', $data)) $type = 'png';
+ else if (preg_match('/^\x47\x49\x46\x38/', $data)) $type = 'gif';
+ else if (preg_match('/^\x00\x00\x01\x00/', $data)) $type = 'ico';
+// else if (preg_match('/^\xFF\xD8\xFF\xE0/', $data)) $type = 'jpeg';
+
+ return 'image/' . $type;
+}
+
+
+/**
+ * A method to guess encoding of a string.
+ *
+ * @param string $string String.
+ * @param string $failover Default result for failover.
+ *
+ * @return string
+ */
+function rc_detect_encoding($string, $failover='')
+{
+ if (!function_exists('mb_detect_encoding')) {
+ return $failover;
+ }
+
+ // 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'
+ );
+
+ $result = mb_detect_encoding($string, join(',', $enc));
+
+ return $result ? $result : $failover;
+}
+
+/**
+ * Removes non-unicode characters from input
+ *
+ * @param mixed $input String or array.
+ * @return string
+ */
+function rc_utf8_clean($input)
+{
+ // handle input of type array
+ if (is_array($input)) {
+ foreach ($input as $idx => $val)
+ $input[$idx] = rc_utf8_clean($val);
+ return $input;
+ }
+
+ if (!is_string($input) || $input == '')
+ return $input;
+
+ // iconv/mbstring are much faster (especially with long strings)
+ if (function_exists('mb_convert_encoding') && ($res = mb_convert_encoding($input, 'UTF-8', 'UTF-8')) !== false)
+ return $res;
+
+ if (function_exists('iconv') && ($res = @iconv('UTF-8', 'UTF-8//IGNORE', $input)) !== false)
+ return $res;
+
+ $regexp = '/^('.
+// '[\x00-\x7F]'. // UTF8-1
+ '|[\xC2-\xDF][\x80-\xBF]'. // UTF8-2
+ '|\xE0[\xA0-\xBF][\x80-\xBF]'. // UTF8-3
+ '|[\xE1-\xEC][\x80-\xBF][\x80-\xBF]'. // UTF8-3
+ '|\xED[\x80-\x9F][\x80-\xBF]'. // UTF8-3
+ '|[\xEE-\xEF][\x80-\xBF][\x80-\xBF]'. // UTF8-3
+ '|\xF0[\x90-\xBF][\x80-\xBF][\x80-\xBF]'. // UTF8-4
+ '|[\xF1-\xF3][\x80-\xBF][\x80-\xBF][\x80-\xBF]'.// UTF8-4
+ '|\xF4[\x80-\x8F][\x80-\xBF][\x80-\xBF]'. // UTF8-4
+ ')$/';
+
+ $seq = '';
+ $out = '';
+
+ for ($i = 0, $len = strlen($input); $i < $len; $i++) {
+ $chr = $input[$i];
+ $ord = ord($chr);
+ // 1-byte character
+ if ($ord <= 0x7F) {
+ if ($seq)
+ $out .= preg_match($regexp, $seq) ? $seq : '';
+ $seq = '';
+ $out .= $chr;
+ // first (or second) byte of multibyte sequence
+ } else if ($ord >= 0xC0) {
+ if (strlen($seq)>1) {
+ $out .= preg_match($regexp, $seq) ? $seq : '';
+ $seq = '';
+ } else if ($seq && ord($seq) < 0xC0) {
+ $seq = '';
+ }
+ $seq .= $chr;
+ // next byte of multibyte sequence
+ } else if ($seq) {
+ $seq .= $chr;
+ }
+ }
+
+ if ($seq)
+ $out .= preg_match($regexp, $seq) ? $seq : '';
+
+ return $out;
+}
+
+
+/**
+ * Convert a variable into a javascript object notation
+ *
+ * @param mixed Input value
+ * @return string Serialized JSON string
+ */
+function json_serialize($input)
+{
+ $input = rc_utf8_clean($input);
+
+ // sometimes even using rc_utf8_clean() the input contains invalid UTF-8 sequences
+ // that's why we have @ here
+ return @json_encode($input);
+}
+
+
+/**
+ * Explode quoted string
+ *
+ * @param string Delimiter expression string for preg_match()
+ * @param string Input string
+ */
+function rcube_explode_quoted_string($delimiter, $string)
+{
+ $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 $result;
+}
+
+
+/**
+ * Get all keys from array (recursive)
+ *
+ * @param array Input array
+ * @return array
+ */
+function array_keys_recursive($array)
+{
+ $keys = array();
+
+ if (!empty($array))
+ foreach ($array as $key => $child) {
+ $keys[] = $key;
+ foreach (array_keys_recursive($child) as $val)
+ $keys[] = $val;
+ }
+ return $keys;
+}
+
+
+/**
+ * mbstring replacement functions
+ */
+
+if (!extension_loaded('mbstring'))
+{
+ function mb_strlen($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;
+ }
+}
+
projects / roundcube.git / blobdiff