deleted file mode 100644
--- a/library/smarty/libs/sysplugins/smarty_security.php
+++ /dev/null
@@ -1,628 +0,0 @@
-<?php
-/**
- * Smarty plugin
- *
- * @package Smarty
- * @subpackage Security
- * @author Uwe Tews
- */
-
-/*
- * FIXME: Smarty_Security API
- * - getter and setter instead of public properties would allow cultivating an internal cache properly
- * - current implementation of isTrustedResourceDir() assumes that Smarty::$template_dir and Smarty::$config_dir are immutable
- * the cache is killed every time either of the variables change. That means that two distinct Smarty objects with differing
- * $template_dir or $config_dir should NOT share the same Smarty_Security instance,
- * as this would lead to (severe) performance penalty! how should this be handled?
- */
-
-/**
- * This class does contain the security settings
- */
-class Smarty_Security {
- /**
- * This determines how Smarty handles "<?php ... ?>" tags in templates.
- * possible values:
- * <ul>
- * <li>Smarty::PHP_PASSTHRU -> echo PHP tags as they are</li>
- * <li>Smarty::PHP_QUOTE -> escape tags as entities</li>
- * <li>Smarty::PHP_REMOVE -> remove php tags</li>
- * <li>Smarty::PHP_ALLOW -> execute php tags</li>
- * </ul>
- *
- * @var integer
- */
- public $php_handling = Smarty::PHP_PASSTHRU;
- /**
- * This is the list of template directories that are considered secure.
- * $template_dir is in this list implicitly.
- *
- * @var array
- */
- public $secure_dir = array();
- /**
- * This is an array of directories where trusted php scripts reside.
- * {@link $security} is disabled during their inclusion/execution.
- *
- * @var array
- */
- public $trusted_dir = array();
- /**
- * List of regular expressions (PCRE) that include trusted URIs
- *
- * @var array
- */
- public $trusted_uri = array();
- /**
- * List of trusted constants names
- *
- * @var array
- */
- public $trusted_constants = array();
- /**
- * This is an array of trusted static classes.
- * If empty access to all static classes is allowed.
- * If set to 'none' none is allowed.
- *
- * @var array
- */
- public $static_classes = array();
-
- /**
- * This is an nested array of trusted classes and static methods.
- * If empty access to all static classes and methods is allowed.
- * Format:
- * array (
- * 'class_1' => array('method_1', 'method_2'), // allowed methods listed
- * 'class_2' => array(), // all methods of class allowed
- * )
- * If set to null none is allowed.
- *
- * @var array
- */
- public $trusted_static_methods = array();
-
- /**
- * This is an array of trusted static properties.
- * If empty access to all static classes and properties is allowed.
- * Format:
- * array (
- * 'class_1' => array('prop_1', 'prop_2'), // allowed properties listed
- * 'class_2' => array(), // all properties of class allowed
- * )
- * If set to null none is allowed.
- *
- * @var array
- */
- public $trusted_static_properties = array();
- /**
- * This is an array of trusted PHP functions.
- * If empty all functions are allowed.
- * To disable all PHP functions set $php_functions = null.
- *
- * @var array
- */
- public $php_functions = array(
- 'isset', 'empty',
- 'count', 'sizeof',
- 'in_array', 'is_array',
- 'time',
- );
- /**
- * This is an array of trusted PHP modifiers.
- * If empty all modifiers are allowed.
- * To disable all modifier set $php_modifiers = null.
- *
- * @var array
- */
- public $php_modifiers = array(
- 'escape',
- 'count',
- 'nl2br',
- );
- /**
- * This is an array of allowed tags.
- * If empty no restriction by allowed_tags.
- *
- * @var array
- */
- public $allowed_tags = array();
- /**
- * This is an array of disabled tags.
- * If empty no restriction by disabled_tags.
- *
- * @var array
- */
- public $disabled_tags = array();
- /**
- * This is an array of allowed modifier plugins.
- * If empty no restriction by allowed_modifiers.
- *
- * @var array
- */
- public $allowed_modifiers = array();
- /**
- * This is an array of disabled modifier plugins.
- * If empty no restriction by disabled_modifiers.
- *
- * @var array
- */
- public $disabled_modifiers = array();
- /**
- * This is an array of disabled special $smarty variables.
- *
- * @var array
- */
- public $disabled_special_smarty_vars = array();
- /**
- * This is an array of trusted streams.
- * If empty all streams are allowed.
- * To disable all streams set $streams = null.
- *
- * @var array
- */
- public $streams = array('file');
- /**
- * + flag if constants can be accessed from template
- *
- * @var boolean
- */
- public $allow_constants = true;
- /**
- * + flag if super globals can be accessed from template
- *
- * @var boolean
- */
- public $allow_super_globals = true;
- /**
- * max template nesting level
- *
- * @var int
- */
- public $max_template_nesting = 0;
- /**
- * current template nesting level
- *
- * @var int
- */
- private $_current_template_nesting = 0;
- /**
- * Cache for $resource_dir lookup
- *
- * @var array
- */
- protected $_resource_dir = null;
- /**
- * Cache for $template_dir lookup
- *
- * @var array
- */
- protected $_template_dir = null;
- /**
- * Cache for $config_dir lookup
- *
- * @var array
- */
- protected $_config_dir = null;
- /**
- * Cache for $secure_dir lookup
- *
- * @var array
- */
- protected $_secure_dir = null;
- /**
- * Cache for $php_resource_dir lookup
- *
- * @var array
- */
- protected $_php_resource_dir = null;
- /**
- * Cache for $trusted_dir lookup
- *
- * @var array
- */
- protected $_trusted_dir = null;
-
- /**
- * @param Smarty $smarty
- */
- public function __construct($smarty) {
- $this->smarty = $smarty;
- }
-
- /**
- * Check if PHP function is trusted.
- *
- * @param string $function_name
- * @param object $compiler compiler object
- *
- * @return boolean true if function is trusted
- * @throws SmartyCompilerException if php function is not trusted
- */
- public function isTrustedPhpFunction($function_name, $compiler) {
- if (isset($this->php_functions) && (empty($this->php_functions) || in_array($function_name, $this->php_functions))) {
- return true;
- }
-
- $compiler->trigger_template_error("PHP function '{$function_name}' not allowed by security setting");
-
- return false; // should not, but who knows what happens to the compiler in the future?
- }
-
- /**
- * Check if static class is trusted.
- *
- * @param string $class_name
- * @param object $compiler compiler object
- *
- * @return boolean true if class is trusted
- * @throws SmartyCompilerException if static class is not trusted
- */
- public function isTrustedStaticClass($class_name, $compiler) {
- if (isset($this->static_classes) && (empty($this->static_classes) || in_array($class_name, $this->static_classes))) {
- return true;
- }
-
- $compiler->trigger_template_error("access to static class '{$class_name}' not allowed by security setting");
-
- return false; // should not, but who knows what happens to the compiler in the future?
- }
-
- /**
- * Check if static class method/property is trusted.
- *
- * @param string $class_name
- * @param string $params
- * @param object $compiler compiler object
- *
- * @return boolean true if class method is trusted
- * @throws SmartyCompilerException if static class method is not trusted
- */
- public function isTrustedStaticClassAccess($class_name, $params, $compiler) {
- if (!isset($params[2])) {
- // fall back
- return $this->isTrustedStaticClass($class_name, $compiler);
- }
- if ($params[2] == 'method') {
- $allowed = $this->trusted_static_methods;
- $name = substr($params[0], 0, strpos($params[0], '('));
- } else {
- $allowed = $this->trusted_static_properties;
- // strip '$'
- $name = substr($params[0], 1);
- }
- if (isset($allowed)) {
- if (empty($allowed)) {
- // fall back
- return $this->isTrustedStaticClass($class_name, $compiler);
- }
- if (isset($allowed[$class_name])
- && (empty($allowed[$class_name])
- || in_array($name, $allowed[$class_name]))
- ) {
- return true;
- }
- }
- $compiler->trigger_template_error("access to static class '{$class_name}' {$params[2]} '{$name}' not allowed by security setting");
- return false; // should not, but who knows what happens to the compiler in the future?
- }
-
- /**
- * Check if PHP modifier is trusted.
- *
- * @param string $modifier_name
- * @param object $compiler compiler object
- *
- * @return boolean true if modifier is trusted
- * @throws SmartyCompilerException if modifier is not trusted
- */
- public function isTrustedPhpModifier($modifier_name, $compiler) {
- if (isset($this->php_modifiers) && (empty($this->php_modifiers) || in_array($modifier_name, $this->php_modifiers))) {
- return true;
- }
-
- $compiler->trigger_template_error("modifier '{$modifier_name}' not allowed by security setting");
-
- return false; // should not, but who knows what happens to the compiler in the future?
- }
-
- /**
- * Check if tag is trusted.
- *
- * @param string $tag_name
- * @param object $compiler compiler object
- *
- * @return boolean true if tag is trusted
- * @throws SmartyCompilerException if modifier is not trusted
- */
- public function isTrustedTag($tag_name, $compiler) {
- // check for internal always required tags
- if (in_array($tag_name, array('assign', 'call', 'private_filter', 'private_block_plugin', 'private_function_plugin', 'private_object_block_function',
- 'private_object_function', 'private_registered_function', 'private_registered_block', 'private_special_variable', 'private_print_expression', 'private_modifier'))
- ) {
- return true;
- }
- // check security settings
- if (empty($this->allowed_tags)) {
- if (empty($this->disabled_tags) || !in_array($tag_name, $this->disabled_tags)) {
- return true;
- } else {
- $compiler->trigger_template_error("tag '{$tag_name}' disabled by security setting", $compiler->lex->taglineno);
- }
- } elseif (in_array($tag_name, $this->allowed_tags) && !in_array($tag_name, $this->disabled_tags)) {
- return true;
- } else {
- $compiler->trigger_template_error("tag '{$tag_name}' not allowed by security setting", $compiler->lex->taglineno);
- }
-
- return false; // should not, but who knows what happens to the compiler in the future?
- }
-
- /**
- * Check if special $smarty variable is trusted.
- *
- * @param string $var_name
- * @param object $compiler compiler object
- *
- * @return boolean true if tag is trusted
- * @throws SmartyCompilerException if modifier is not trusted
- */
- public function isTrustedSpecialSmartyVar($var_name, $compiler) {
- if (!in_array($var_name, $this->disabled_special_smarty_vars)) {
- return true;
- } else {
- $compiler->trigger_template_error("special variable '\$smarty.{$var_name}' not allowed by security setting", $compiler->lex->taglineno);
- }
-
- return false; // should not, but who knows what happens to the compiler in the future?
- }
-
- /**
- * Check if modifier plugin is trusted.
- *
- * @param string $modifier_name
- * @param object $compiler compiler object
- *
- * @return boolean true if tag is trusted
- * @throws SmartyCompilerException if modifier is not trusted
- */
- public function isTrustedModifier($modifier_name, $compiler) {
- // check for internal always allowed modifier
- if (in_array($modifier_name, array('default'))) {
- return true;
- }
- // check security settings
- if (empty($this->allowed_modifiers)) {
- if (empty($this->disabled_modifiers) || !in_array($modifier_name, $this->disabled_modifiers)) {
- return true;
- } else {
- $compiler->trigger_template_error("modifier '{$modifier_name}' disabled by security setting", $compiler->lex->taglineno);
- }
- } elseif (in_array($modifier_name, $this->allowed_modifiers) && !in_array($modifier_name, $this->disabled_modifiers)) {
- return true;
- } else {
- $compiler->trigger_template_error("modifier '{$modifier_name}' not allowed by security setting", $compiler->lex->taglineno);
- }
-
- return false; // should not, but who knows what happens to the compiler in the future?
- }
-
- /**
- * Check if constants are enabled or trusted
- *
- * @param string $const contant name
- * @param object $compiler compiler object
- *
- * @return bool
- */
- public function isTrustedConstant($const, $compiler) {
- if (in_array($const, array('true', 'false', 'null'))) {
- return true;
- }
- if (!empty($this->trusted_constants)) {
- if (!in_array($const, $this->trusted_constants)) {
- $compiler->trigger_template_error("Security: access to constant '{$const}' not permitted");
- return false;
- }
- return true;
- }
- if ($this->allow_constants) {
- return true;
- }
- $compiler->trigger_template_error("Security: access to constants not permitted");
- return false;
- }
-
- /**
- * Check if stream is trusted.
- *
- * @param string $stream_name
- *
- * @return boolean true if stream is trusted
- * @throws SmartyException if stream is not trusted
- */
- public function isTrustedStream($stream_name) {
- if (isset($this->streams) && (empty($this->streams) || in_array($stream_name, $this->streams))) {
- return true;
- }
-
- throw new SmartyException("stream '{$stream_name}' not allowed by security setting");
- }
-
- /**
- * Check if directory of file resource is trusted.
- *
- * @param string $filepath
- *
- * @return boolean true if directory is trusted
- * @throws SmartyException if directory is not trusted
- */
- public function isTrustedResourceDir($filepath) {
- $_template = false;
- $_config = false;
- $_secure = false;
-
- $_template_dir = $this->smarty->getTemplateDir();
- $_config_dir = $this->smarty->getConfigDir();
-
- // check if index is outdated
- if ((!$this->_template_dir || $this->_template_dir !== $_template_dir)
- || (!$this->_config_dir || $this->_config_dir !== $_config_dir)
- || (!empty($this->secure_dir) && (!$this->_secure_dir || $this->_secure_dir !== $this->secure_dir))
- ) {
- $this->_resource_dir = array();
- $_template = true;
- $_config = true;
- $_secure = !empty($this->secure_dir);
- }
-
- // rebuild template dir index
- if ($_template) {
- $this->_template_dir = $_template_dir;
- foreach ($_template_dir as $directory) {
- $directory = realpath($directory);
- $this->_resource_dir[$directory] = true;
- }
- }
-
- // rebuild config dir index
- if ($_config) {
- $this->_config_dir = $_config_dir;
- foreach ($_config_dir as $directory) {
- $directory = realpath($directory);
- $this->_resource_dir[$directory] = true;
- }
- }
-
- // rebuild secure dir index
- if ($_secure) {
- $this->_secure_dir = $this->secure_dir;
- foreach ((array)$this->secure_dir as $directory) {
- $directory = realpath($directory);
- $this->_resource_dir[$directory] = true;
- }
- }
-
- $_filepath = realpath($filepath);
- $directory = dirname($_filepath);
- $_directory = array();
- while (true) {
- // remember the directory to add it to _resource_dir in case we're successful
- $_directory[$directory] = true;
- // test if the directory is trusted
- if (isset($this->_resource_dir[$directory])) {
- // merge sub directories of current $directory into _resource_dir to speed up subsequent lookup
- $this->_resource_dir = array_merge($this->_resource_dir, $_directory);
-
- return true;
- }
- // abort if we've reached root
- if (($pos = strrpos($directory, DS)) === false || !isset($directory[1])) {
- break;
- }
- // bubble up one level
- $directory = substr($directory, 0, $pos);
- }
-
- // give up
- throw new SmartyException("directory '{$_filepath}' not allowed by security setting");
- }
-
- /**
- * Check if URI (e.g. {fetch} or {html_image}) is trusted
- * To simplify things, isTrustedUri() resolves all input to "{$PROTOCOL}://{$HOSTNAME}".
- * So "http://username:password@hello.world.example.org:8080/some-path?some=query-string"
- * is reduced to "http://hello.world.example.org" prior to applying the patters from {@link $trusted_uri}.
- *
- * @param string $uri
- *
- * @return boolean true if URI is trusted
- * @throws SmartyException if URI is not trusted
- * @uses $trusted_uri for list of patterns to match against $uri
- */
- public function isTrustedUri($uri) {
- $_uri = parse_url($uri);
- if (!empty($_uri['scheme']) && !empty($_uri['host'])) {
- $_uri = $_uri['scheme'] . '://' . $_uri['host'];
- foreach ($this->trusted_uri as $pattern) {
- if (preg_match($pattern, $_uri)) {
- return true;
- }
- }
- }
-
- throw new SmartyException("URI '{$uri}' not allowed by security setting");
- }
-
- /**
- * Check if directory of file resource is trusted.
- *
- * @param string $filepath
- *
- * @return boolean true if directory is trusted
- * @throws SmartyException if PHP directory is not trusted
- */
- public function isTrustedPHPDir($filepath) {
- if (empty($this->trusted_dir)) {
- throw new SmartyException("directory '{$filepath}' not allowed by security setting (no trusted_dir specified)");
- }
-
- // check if index is outdated
- if (!$this->_trusted_dir || $this->_trusted_dir !== $this->trusted_dir) {
- $this->_php_resource_dir = array();
-
- $this->_trusted_dir = $this->trusted_dir;
- foreach ((array)$this->trusted_dir as $directory) {
- $directory = realpath($directory);
- $this->_php_resource_dir[$directory] = true;
- }
- }
-
- $_filepath = realpath($filepath);
- $directory = dirname($_filepath);
- $_directory = array();
- while (true) {
- // remember the directory to add it to _resource_dir in case we're successful
- $_directory[] = $directory;
- // test if the directory is trusted
- if (isset($this->_php_resource_dir[$directory])) {
- // merge sub directories of current $directory into _resource_dir to speed up subsequent lookup
- $this->_php_resource_dir = array_merge($this->_php_resource_dir, $_directory);
-
- return true;
- }
- // abort if we've reached root
- if (($pos = strrpos($directory, DS)) === false || !isset($directory[2])) {
- break;
- }
- // bubble up one level
- $directory = substr($directory, 0, $pos);
- }
-
- throw new SmartyException("directory '{$_filepath}' not allowed by security setting");
- }
-
- /**
- * Start template processing
- *
- * @param $template
- *
- * @throws SmartyException
- */
- public function startTemplate($template) {
- if ($this->max_template_nesting > 0 && $this->_current_template_nesting++ >= $this->max_template_nesting) {
- throw new SmartyException("maximum template nesting level of '{$this->max_template_nesting}' exceeded when calling '{$template->template_resource}'");
- }
- }
-
- /**
- * Exit template processing
- *
- * @param $template
- */
- public function exitTemplate($template) {
- if ($this->max_template_nesting > 0) {
- $this->_current_template_nesting--;
- }
- }
-}