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<?php
/**
* Smarty plugin
*
* @package Smarty
* @subpackage PluginsModifierCompiler
*/
/**
* Smarty escape modifier plugin
* Type: modifier
* Name: escape
* Purpose: escape string for output
*
* @link https://www.smarty.net/docsv2/en/language.modifier.escape count_characters (Smarty online manual)
* @author Rodney Rehm
*
* @param array $params parameters
* @param Smarty_Internal_TemplateCompilerBase $compiler
*
* @return string with compiled code
* @throws \SmartyException
*/
function smarty_modifiercompiler_escape($params, Smarty_Internal_TemplateCompilerBase $compiler)
{
static $_double_encode = true;
static $is_loaded = false;
$compiler->template->_checkPlugins(
array(
array(
'function' => 'smarty_literal_compiler_param',
'file' => SMARTY_PLUGINS_DIR . 'shared.literal_compiler_param.php'
)
)
);
try {
$esc_type = smarty_literal_compiler_param($params, 1, 'html');
$char_set = smarty_literal_compiler_param($params, 2, Smarty::$_CHARSET);
$double_encode = smarty_literal_compiler_param($params, 3, true);
if (!$char_set) {
$char_set = Smarty::$_CHARSET;
}
switch ($esc_type) {
case 'html':
if ($_double_encode) {
return 'htmlspecialchars(' . $params[ 0 ] . ', ENT_QUOTES, ' . var_export($char_set, true) . ', ' .
var_export($double_encode, true) . ')';
} elseif ($double_encode) {
return 'htmlspecialchars(' . $params[ 0 ] . ', ENT_QUOTES, ' . var_export($char_set, true) . ')';
} else {
// fall back to modifier.escape.php
}
// no break
case 'htmlall':
if (Smarty::$_MBSTRING) {
if ($_double_encode) {
// php >=5.2.3 - go native
return 'mb_convert_encoding(htmlspecialchars(' . $params[ 0 ] . ', ENT_QUOTES, ' .
var_export($char_set, true) . ', ' . var_export($double_encode, true) .
'), "HTML-ENTITIES", ' . var_export($char_set, true) . ')';
} elseif ($double_encode) {
// php <5.2.3 - only handle double encoding
return 'mb_convert_encoding(htmlspecialchars(' . $params[ 0 ] . ', ENT_QUOTES, ' .
var_export($char_set, true) . '), "HTML-ENTITIES", ' . var_export($char_set, true) . ')';
} else {
// fall back to modifier.escape.php
}
}
// no MBString fallback
if ($_double_encode) {
// php >=5.2.3 - go native
return 'htmlentities(' . $params[ 0 ] . ', ENT_QUOTES, ' . var_export($char_set, true) . ', ' .
var_export($double_encode, true) . ')';
} elseif ($double_encode) {
// php <5.2.3 - only handle double encoding
return 'htmlentities(' . $params[ 0 ] . ', ENT_QUOTES, ' . var_export($char_set, true) . ')';
} else {
// fall back to modifier.escape.php
}
// no break
case 'url':
return 'rawurlencode(' . $params[ 0 ] . ')';
case 'urlpathinfo':
return 'str_replace("%2F", "/", rawurlencode(' . $params[ 0 ] . '))';
case 'quotes':
// escape unescaped single quotes
return 'preg_replace("%(?<!\\\\\\\\)\'%", "\\\'",' . $params[ 0 ] . ')';
case 'javascript':
// escape quotes and backslashes, newlines, etc.
// see https://html.spec.whatwg.org/multipage/scripting.html#restrictions-for-contents-of-script-elements
return 'strtr(' .
$params[ 0 ] .
', array("\\\\" => "\\\\\\\\", "\'" => "\\\\\'", "\"" => "\\\\\"", "\\r" => "\\\\r", "\\n" => "\\\n", "</" => "<\/", "<!--" => "<\!--", "<s" => "<\s", "<S" => "<\S" ))';
}
} catch (SmartyException $e) {
// pass through to regular plugin fallback
}
// could not optimize |escape call, so fallback to regular plugin
if ($compiler->template->caching && ($compiler->tag_nocache | $compiler->nocache)) {
$compiler->required_plugins[ 'nocache' ][ 'escape' ][ 'modifier' ][ 'file' ] =
SMARTY_PLUGINS_DIR . 'modifier.escape.php';
$compiler->required_plugins[ 'nocache' ][ 'escape' ][ 'modifier' ][ 'function' ] =
'smarty_modifier_escape';
} else {
$compiler->required_plugins[ 'compiled' ][ 'escape' ][ 'modifier' ][ 'file' ] =
SMARTY_PLUGINS_DIR . 'modifier.escape.php';
$compiler->required_plugins[ 'compiled' ][ 'escape' ][ 'modifier' ][ 'function' ] =
'smarty_modifier_escape';
}
return 'smarty_modifier_escape(' . join(', ', $params) . ')';
}
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