diff options
Diffstat (limited to 'library/ajaxchat/chat/lib/class/AJAXChatEncoding.php')
| -rw-r--r-- | library/ajaxchat/chat/lib/class/AJAXChatEncoding.php | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/library/ajaxchat/chat/lib/class/AJAXChatEncoding.php b/library/ajaxchat/chat/lib/class/AJAXChatEncoding.php deleted file mode 100644 index 96b2482c7..000000000 --- a/library/ajaxchat/chat/lib/class/AJAXChatEncoding.php +++ /dev/null @@ -1,138 +0,0 @@ -<?php -/* - * @package AJAX_Chat - * @author Sebastian Tschan - * @copyright (c) Sebastian Tschan - * @license Modified MIT License - * @link https://blueimp.net/ajax/ - */ - -// Class to provide static encoding methods -class AJAXChatEncoding { - - // Helper function to store special chars as we cannot use static class members in PHP4: - public static function getSpecialChars() { - static $specialChars; - if(!$specialChars) { - // As ' is not supported by IE, we use ' as replacement for "'": - $specialChars = array('&'=>'&', '<'=>'<', '>'=>'>', "'"=>''', '"'=>'"'); - } - return $specialChars; - } - - // Helper function to store Regular expression for NO-WS-CTL as we cannot use static class members in PHP4: - public static function getRegExp_NO_WS_CTL() { - static $regExp_NO_WS_CTL; - if(!$regExp_NO_WS_CTL) { - // Regular expression for NO-WS-CTL, non-whitespace control characters (RFC 2822), decimal 1–8, 11–12, 14–31, and 127: - $regExp_NO_WS_CTL = '/[\x0\x1\x2\x3\x4\x5\x6\x7\x8\xB\xC\xE\xF\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1A\x1B\x1C\x1D\x1E\x1F\x7F]/'; - } - return $regExp_NO_WS_CTL; - } - - public static function convertEncoding($str, $charsetFrom, $charsetTo) { - if(function_exists('mb_convert_encoding')) { - return mb_convert_encoding($str, $charsetTo, $charsetFrom); - } - if(function_exists('iconv')) { - return iconv($charsetFrom, $charsetTo, $str); - } - if(($charsetFrom == 'UTF-8') && ($charsetTo == 'ISO-8859-1')) { - return utf8_decode($str); - } - if(($charsetFrom == 'ISO-8859-1') && ($charsetTo == 'UTF-8')) { - return utf8_encode($str); - } - return $str; - } - - public static function htmlEncode($str, $contentCharset='UTF-8') { - switch($contentCharset) { - case 'UTF-8': - // Encode only special chars (&, <, >, ', ") as entities: - return AJAXChatEncoding::encodeSpecialChars($str); - break; - case 'ISO-8859-1': - case 'ISO-8859-15': - // Encode special chars and all extended characters above ISO-8859-1 charset as entities, then convert to content charset: - return AJAXChatEncoding::convertEncoding(AJAXChatEncoding::encodeEntities($str, 'UTF-8', array( - 0x26, 0x26, 0, 0xFFFF, // & - 0x3C, 0x3C, 0, 0xFFFF, // < - 0x3E, 0x3E, 0, 0xFFFF, // > - 0x27, 0x27, 0, 0xFFFF, // ' - 0x22, 0x22, 0, 0xFFFF, // " - 0x100, 0x2FFFF, 0, 0xFFFF // above ISO-8859-1 - )), 'UTF-8', $contentCharset); - break; - default: - // Encode special chars and all characters above ASCII charset as entities, then convert to content charset: - return AJAXChatEncoding::convertEncoding(AJAXChatEncoding::encodeEntities($str, 'UTF-8', array( - 0x26, 0x26, 0, 0xFFFF, // & - 0x3C, 0x3C, 0, 0xFFFF, // < - 0x3E, 0x3E, 0, 0xFFFF, // > - 0x27, 0x27, 0, 0xFFFF, // ' - 0x22, 0x22, 0, 0xFFFF, // " - 0x80, 0x2FFFF, 0, 0xFFFF // above ASCII - )), 'UTF-8', $contentCharset); - } - } - - public static function encodeSpecialChars($str) { - return strtr($str, AJAXChatEncoding::getSpecialChars()); - } - - public static function decodeSpecialChars($str) { - return strtr($str, array_flip(AJAXChatEncoding::getSpecialChars())); - } - - public static function encodeEntities($str, $encoding='UTF-8', $convmap=null) { - if($convmap && function_exists('mb_encode_numericentity')) { - return mb_encode_numericentity($str, $convmap, $encoding); - } - return htmlentities($str, ENT_QUOTES, $encoding); - } - - public static function decodeEntities($str, $encoding='UTF-8', $htmlEntitiesMap=null) { - // Due to PHP bug #25670, html_entity_decode does not work with UTF-8 for PHP versions < 5: - if(function_exists('html_entity_decode') && version_compare(phpversion(), 5, '>=')) { - // Replace numeric and literal entities: - $str = html_entity_decode($str, ENT_QUOTES, $encoding); - // Replace additional literal HTML entities if an HTML entities map is given: - if($htmlEntitiesMap) { - $str = strtr($str, $htmlEntitiesMap); - } - } else { - // Replace numeric entities: - $str = preg_replace('~&#([0-9]+);~e', 'AJAXChatEncoding::unicodeChar("\\1")', $str); - $str = preg_replace('~&#x([0-9a-f]+);~ei', 'AJAXChatEncoding::unicodeChar(hexdec("\\1"))', $str); - // Replace literal entities: - $htmlEntitiesMap = $htmlEntitiesMap ? $htmlEntitiesMap : array_flip(get_html_translation_table(HTML_ENTITIES, ENT_QUOTES)); - $str = strtr($str, $htmlEntitiesMap); - } - return $str; - } - - public static function unicodeChar($c) { - if($c <= 0x7F) { - return chr($c); - } else if($c <= 0x7FF) { - return chr(0xC0 | $c >> 6) . chr(0x80 | $c & 0x3F); - } else if($c <= 0xFFFF) { - return chr(0xE0 | $c >> 12) . chr(0x80 | $c >> 6 & 0x3F) - . chr(0x80 | $c & 0x3F); - } else if($c <= 0x10FFFF) { - return chr(0xF0 | $c >> 18) . chr(0x80 | $c >> 12 & 0x3F) - . chr(0x80 | $c >> 6 & 0x3F) - . chr(0x80 | $c & 0x3F); - } else { - return null; - } - } - - public static function removeUnsafeCharacters($str) { - // Remove NO-WS-CTL, non-whitespace control characters (RFC 2822), decimal 1–8, 11–12, 14–31, and 127: - return preg_replace(AJAXChatEncoding::getRegExp_NO_WS_CTL(), '', $str); - } - -} -?>
\ No newline at end of file |