diff options
Diffstat (limited to 'library/Smarty/libs/plugins/modifier.escape.php')
| -rw-r--r-- | library/Smarty/libs/plugins/modifier.escape.php | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/library/Smarty/libs/plugins/modifier.escape.php b/library/Smarty/libs/plugins/modifier.escape.php new file mode 100644 index 000000000..32d185fce --- /dev/null +++ b/library/Smarty/libs/plugins/modifier.escape.php @@ -0,0 +1,188 @@ +<?php +/** + * Smarty plugin + * + * @package Smarty + * @subpackage PluginsModifier + */ + +/** + * Smarty escape modifier plugin + * + * Type: modifier<br> + * Name: escape<br> + * Purpose: escape string for output + * + * @link http://www.smarty.net/manual/en/language.modifier.count.characters.php count_characters (Smarty online manual) + * @author Monte Ohrt <monte at ohrt dot com> + * @param string $string input string + * @param string $esc_type escape type + * @param string $char_set character set, used for htmlspecialchars() or htmlentities() + * @param boolean $double_encode encode already encoded entitites again, used for htmlspecialchars() or htmlentities() + * @return string escaped input string + */ +function smarty_modifier_escape($string, $esc_type = 'html', $char_set = null, $double_encode = true) +{ + static $_double_encode = null; + if ($_double_encode === null) { + $_double_encode = version_compare(PHP_VERSION, '5.2.3', '>='); + } + + if (!$char_set) { + $char_set = Smarty::$_CHARSET; + } + + switch ($esc_type) { + case 'html': + if ($_double_encode) { + // php >=5.3.2 - go native + return htmlspecialchars($string, ENT_QUOTES, $char_set, $double_encode); + } else { + if ($double_encode) { + // php <5.3.2 - only handle double encoding + return htmlspecialchars($string, ENT_QUOTES, $char_set); + } else { + // php <5.3.2 - prevent double encoding + $string = preg_replace('!&(#?\w+);!', '%%%SMARTY_START%%%\\1%%%SMARTY_END%%%', $string); + $string = htmlspecialchars($string, ENT_QUOTES, $char_set); + $string = str_replace(array('%%%SMARTY_START%%%', '%%%SMARTY_END%%%'), array('&', ';'), $string); + return $string; + } + } + + case 'htmlall': + if (Smarty::$_MBSTRING) { + // mb_convert_encoding ignores htmlspecialchars() + if ($_double_encode) { + // php >=5.3.2 - go native + $string = htmlspecialchars($string, ENT_QUOTES, $char_set, $double_encode); + } else { + if ($double_encode) { + // php <5.3.2 - only handle double encoding + $string = htmlspecialchars($string, ENT_QUOTES, $char_set); + } else { + // php <5.3.2 - prevent double encoding + $string = preg_replace('!&(#?\w+);!', '%%%SMARTY_START%%%\\1%%%SMARTY_END%%%', $string); + $string = htmlspecialchars($string, ENT_QUOTES, $char_set); + $string = str_replace(array('%%%SMARTY_START%%%', '%%%SMARTY_END%%%'), array('&', ';'), $string); + return $string; + } + } + + // htmlentities() won't convert everything, so use mb_convert_encoding + return mb_convert_encoding($string, 'HTML-ENTITIES', $char_set); + } + + // no MBString fallback + if ($_double_encode) { + return htmlentities($string, ENT_QUOTES, $char_set, $double_encode); + } else { + if ($double_encode) { + return htmlentities($string, ENT_QUOTES, $char_set); + } else { + $string = preg_replace('!&(#?\w+);!', '%%%SMARTY_START%%%\\1%%%SMARTY_END%%%', $string); + $string = htmlentities($string, ENT_QUOTES, $char_set); + $string = str_replace(array('%%%SMARTY_START%%%', '%%%SMARTY_END%%%'), array('&', ';'), $string); + return $string; + } + } + + case 'url': + return rawurlencode($string); + + case 'urlpathinfo': + return str_replace('%2F', '/', rawurlencode($string)); + + case 'quotes': + // escape unescaped single quotes + return preg_replace("%(?<!\\\\)'%", "\\'", $string); + + case 'hex': + // escape every byte into hex + // Note that the UTF-8 encoded character รค will be represented as %c3%a4 + $return = ''; + $_length = strlen($string); + for ($x = 0; $x < $_length; $x++) { + $return .= '%' . bin2hex($string[$x]); + } + return $return; + + case 'hexentity': + $return = ''; + if (Smarty::$_MBSTRING) { + require_once(SMARTY_PLUGINS_DIR . 'shared.mb_unicode.php'); + $return = ''; + foreach (smarty_mb_to_unicode($string, Smarty::$_CHARSET) as $unicode) { + $return .= '&#x' . strtoupper(dechex($unicode)) . ';'; + } + return $return; + } + // no MBString fallback + $_length = strlen($string); + for ($x = 0; $x < $_length; $x++) { + $return .= '&#x' . bin2hex($string[$x]) . ';'; + } + return $return; + + case 'decentity': + $return = ''; + if (Smarty::$_MBSTRING) { + require_once(SMARTY_PLUGINS_DIR . 'shared.mb_unicode.php'); + $return = ''; + foreach (smarty_mb_to_unicode($string, Smarty::$_CHARSET) as $unicode) { + $return .= '&#' . $unicode . ';'; + } + return $return; + } + // no MBString fallback + $_length = strlen($string); + for ($x = 0; $x < $_length; $x++) { + $return .= '&#' . ord($string[$x]) . ';'; + } + return $return; + + case 'javascript': + // escape quotes and backslashes, newlines, etc. + return strtr($string, array('\\' => '\\\\', "'" => "\\'", '"' => '\\"', "\r" => '\\r', "\n" => '\\n', '</' => '<\/')); + + case 'mail': + if (Smarty::$_MBSTRING) { + require_once(SMARTY_PLUGINS_DIR . 'shared.mb_str_replace.php'); + return smarty_mb_str_replace(array('@', '.'), array(' [AT] ', ' [DOT] '), $string); + } + // no MBString fallback + return str_replace(array('@', '.'), array(' [AT] ', ' [DOT] '), $string); + + case 'nonstd': + // escape non-standard chars, such as ms document quotes + $return = ''; + if (Smarty::$_MBSTRING) { + require_once(SMARTY_PLUGINS_DIR . 'shared.mb_unicode.php'); + foreach (smarty_mb_to_unicode($string, Smarty::$_CHARSET) as $unicode) { + if ($unicode >= 126) { + $return .= '&#' . $unicode . ';'; + } else { + $return .= chr($unicode); + } + } + return $return; + } + + $_length = strlen($string); + for ($_i = 0; $_i < $_length; $_i++) { + $_ord = ord(substr($string, $_i, 1)); + // non-standard char, escape it + if ($_ord >= 126) { + $return .= '&#' . $_ord . ';'; + } else { + $return .= substr($string, $_i, 1); + } + } + return $return; + + default: + return $string; + } +} + +?>
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