261 lines
9.7 KiB
PHP
261 lines
9.7 KiB
PHP
<?php
|
|
/**
|
|
* Smarty plugin
|
|
*
|
|
* @package Smarty
|
|
* @subpackage PluginsModifier
|
|
*/
|
|
/**
|
|
* Smarty escape modifier plugin
|
|
* Type: modifier
|
|
* Name: escape
|
|
* Purpose: escape string for output
|
|
*
|
|
* @link https://www.smarty.net/docs/en/language.modifier.escape
|
|
* @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 = true;
|
|
static $is_loaded_1 = false;
|
|
static $is_loaded_2 = false;
|
|
if (!$char_set) {
|
|
$char_set = Smarty::$_CHARSET;
|
|
}
|
|
|
|
$string = (string)$string;
|
|
|
|
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 <5.2.3 - only handle double encoding
|
|
return htmlspecialchars($string, ENT_QUOTES, $char_set);
|
|
} else {
|
|
// php <5.2.3 - 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 $string;
|
|
}
|
|
}
|
|
// no break
|
|
case 'htmlall':
|
|
if (Smarty::$_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 <5.2.3 - only handle double encoding
|
|
$string = htmlspecialchars($string, ENT_QUOTES, $char_set);
|
|
} else {
|
|
// php <5.2.3 - 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 $string;
|
|
}
|
|
}
|
|
// no break
|
|
case 'url':
|
|
return rawurlencode($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 ä 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) {
|
|
if (!$is_loaded_1) {
|
|
if (!is_callable('smarty_mb_to_unicode')) {
|
|
include_once SMARTY_PLUGINS_DIR . 'shared.mb_unicode.php';
|
|
}
|
|
$is_loaded_1 = true;
|
|
}
|
|
$return = '';
|
|
foreach (smarty_mb_to_unicode($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) {
|
|
if (!$is_loaded_1) {
|
|
if (!is_callable('smarty_mb_to_unicode')) {
|
|
include_once SMARTY_PLUGINS_DIR . 'shared.mb_unicode.php';
|
|
}
|
|
$is_loaded_1 = true;
|
|
}
|
|
$return = '';
|
|
foreach (smarty_mb_to_unicode($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(
|
|
$string,
|
|
array(
|
|
'\\' => '\\\\',
|
|
"'" => "\\'",
|
|
'"' => '\\"',
|
|
"\r" => '\\r',
|
|
"\n" => '\\n',
|
|
'</' => '<\/',
|
|
// see https://html.spec.whatwg.org/multipage/scripting.html#restrictions-for-contents-of-script-elements
|
|
'<!--' => '<\!--',
|
|
'<s' => '<\s',
|
|
'<S' => '<\S'
|
|
)
|
|
);
|
|
case 'mail':
|
|
if (Smarty::$_MBSTRING) {
|
|
if (!$is_loaded_2) {
|
|
if (!is_callable('smarty_mb_str_replace')) {
|
|
include_once SMARTY_PLUGINS_DIR . 'shared.mb_str_replace.php';
|
|
}
|
|
$is_loaded_2 = true;
|
|
}
|
|
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) {
|
|
if (!$is_loaded_1) {
|
|
if (!is_callable('smarty_mb_to_unicode')) {
|
|
include_once SMARTY_PLUGINS_DIR . 'shared.mb_unicode.php';
|
|
}
|
|
$is_loaded_1 = true;
|
|
}
|
|
foreach (smarty_mb_to_unicode($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:
|
|
trigger_error("escape: unsupported type: $esc_type - returning unmodified string", E_USER_NOTICE);
|
|
return $string;
|
|
}
|
|
}
|