289 lines
13 KiB
PHP
289 lines
13 KiB
PHP
<?php
|
|
// serendipity_smarty_class.inc.php lm 2014-12-10 Ian
|
|
|
|
// define secure_dir and trusted_dirs for Serendipity_Smarty_Security_Policy class.
|
|
@define('S9Y_TEMPLATE_FALLBACK', $serendipity['serendipityPath'] . $serendipity['templatePath'] . 'default');
|
|
@define('S9Y_TEMPLATE_USERDEFAULT', $serendipity['serendipityPath'] . $serendipity['templatePath'] . $serendipity['template']);
|
|
@define('S9Y_TEMPLATE_USERDEFAULT_BACKEND', $serendipity['serendipityPath'] . $serendipity['templatePath'] . $serendipity['template_backend']);
|
|
@define('S9Y_TEMPLATE_SECUREDIR', $serendipity['serendipityPath'] . $serendipity['templatePath']);
|
|
|
|
|
|
// Create a wrapper class extended from Smarty_Security - which allows access to S9Y-plugin and S9Y-template dirs
|
|
class Serendipity_Smarty_Security_Policy extends Smarty_Security
|
|
{
|
|
// these are the allowed functions only. - default as is
|
|
public $php_functions = array('isset', 'empty', 'count', 'sizeof', 'in_array', 'is_array', 'time', 'nl2br', 'class_exists');
|
|
// to disable all PHP functions
|
|
#public $php_functions = null;
|
|
|
|
// remove PHP tags
|
|
public $php_handling = Smarty::PHP_REMOVE; // = 2
|
|
|
|
// set allowed modifiers only. (default = array( 'escape', 'count' );)
|
|
public $php_modifiers = array('escape', 'sprintf', 'sizeof', 'count', 'rand', 'print_r', 'str_repeat', 'nl2br');
|
|
|
|
public $allow_constants = true;
|
|
|
|
public $allow_super_globals = true;
|
|
|
|
// array of template directories that are considered secure. No need, as ...TemplateDir concidered secure implicitly. (unproofed)
|
|
public $secure_dir = array(S9Y_TEMPLATE_SECUREDIR); // do we need this then?
|
|
|
|
// actually no need, as template dirs are explicit defined as trusted_dirs. (unproofed)
|
|
public $trusted_dir = array(S9Y_TEMPLATE_USERDEFAULT, S9Y_TEMPLATE_USERDEFAULT_BACKEND, S9Y_TEMPLATE_FALLBACK); // do we need this then?
|
|
|
|
#public $modifiers = array(); // can be omitted, when all allowed
|
|
|
|
// to test this - overwrites Serendipity_Smarty::default_modifiers and Serendipity_Smarty_Security_Policy::php_modifiers - modifier 'escape' not allowed by security setting
|
|
#public $allowed_modifiers = array('escape:"htmlall"');
|
|
|
|
// This allows the fetch() and include calls to pull .tpl files from any directory,
|
|
// so that symlinked plugin directories outside the s9y path can be included properly.
|
|
// TODO / FUTURE: If Smarty will implement a seperation option to dissect fetch() from
|
|
// {include} calls, we should only apply this workaround to fetch() calls.
|
|
// Redirecting fetch() as our custom function is too risky and has too high a performance
|
|
// impact.
|
|
public function isTrustedResourceDir($path) {
|
|
return true;
|
|
}
|
|
|
|
public static function test()
|
|
{
|
|
var_dump(get_called_class());
|
|
}
|
|
}
|
|
|
|
// Create a wrapper class extended from Smarty
|
|
class Serendipity_Smarty extends Smarty
|
|
{
|
|
// bc mode for plugins Smarty2 compat INCLUDE_ANY fetch() calls - to avoid an undefinied property error.
|
|
public $security_settings = false;
|
|
|
|
|
|
public function __set($name, $value) {
|
|
if ($name == 'security') {
|
|
if ($value) {
|
|
$this->enableSecurity('Serendipity_Smarty_Security_Policy');
|
|
} else {
|
|
$this->disableSecurity();
|
|
}
|
|
} else {
|
|
parent::__set($name, $value);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* It is often helpful to access the Smarty object from anywhere in your code, e.g in Plugins.
|
|
* Enables the Smarty object by instance always. The singleton pattern ensures that there is only one instance of the object available.
|
|
* To obtain an instance of this class use:
|
|
* $serendipity['smarty'] = Serendipity_Smarty::getInstance();
|
|
* The first time this is called a new instance will be created. Thereafter, the same instance is handed back.
|
|
**/
|
|
public static function getInstance($newInstance = null)
|
|
{
|
|
static $instance = null;
|
|
if(isset($newInstance)) {
|
|
$instance = $newInstance;
|
|
}
|
|
if ( $instance == null ) {
|
|
$instance = new Serendipity_Smarty();
|
|
}
|
|
return $instance;
|
|
}
|
|
|
|
public function __construct()
|
|
{
|
|
// Class Constructor. These automatically get set with each new instance.
|
|
parent::__construct();
|
|
|
|
// call the objects initialization parameters
|
|
self::setParams();
|
|
}
|
|
|
|
// smarty (3.1.x) object main parameter setup
|
|
private function setParams()
|
|
{
|
|
global $serendipity;
|
|
|
|
// some documentary from the smarty forum
|
|
/*
|
|
Adressing a specific $template_dir (see 3.1 release notes)
|
|
|
|
Smarty 3.1 introduces the $template_dir index notation.
|
|
$smarty->fetch('[foo]bar.tpl') and {include file="[foo]bar.tpl"} require the template bar.tpl to be loaded from $template_dir['foo'];
|
|
Smarty::setTemplateDir() and Smarty::addTemplateDir() offer ways to define indexes along with the actual directories.
|
|
*/
|
|
|
|
/* +++++++++++++++++++++++++++++++++++++++++++
|
|
Set all directory setters
|
|
Smarty will always use the first template found in order of the given array. Move the least significant directory to the end.
|
|
*/
|
|
|
|
$template_engine = serendipity_get_config_var('template_engine');
|
|
$template_dirs = array();
|
|
|
|
if ($template_engine) {
|
|
$p = explode(',', $template_engine);
|
|
foreach($p AS $te) {
|
|
$template_dirs[] = $serendipity['serendipityPath'] . $serendipity['templatePath'] . trim($te) . '/';
|
|
}
|
|
} else {
|
|
// this is tested without need actually, but it makes the directory setter fallback chain a little more precise
|
|
$template_dirs[] = $serendipity['serendipityPath'] . $serendipity['templatePath'] . $serendipity['template'];
|
|
}
|
|
$template_dirs[] = $serendipity['serendipityPath'] . $serendipity['templatePath'] . $serendipity['defaultTemplate'];
|
|
$template_dirs[] = $serendipity['serendipityPath'] . $serendipity['templatePath'] . $serendipity['template_backend'];
|
|
|
|
// add secure dir to template path, in case engine did have entries
|
|
if (S9Y_TEMPLATE_SECUREDIR != $serendipity['serendipityPath'] . $serendipity['templatePath']) {
|
|
$template_dirs[] = S9Y_TEMPLATE_SECUREDIR;
|
|
}
|
|
|
|
// disable plugin dir as added template dir is not adviced, if set security is enabled (backend & frontend need access to fetch plugin templates)
|
|
$template_dirs[] = $serendipity['serendipityPath'] . 'plugins';
|
|
// add default template to addTemplate array, if not already set in engine
|
|
$template_dirs[] = S9Y_TEMPLATE_FALLBACK;
|
|
|
|
$this->setTemplateDir($template_dirs);
|
|
|
|
$this->setCompileDir($serendipity['serendipityPath'] . PATH_SMARTY_COMPILE);
|
|
|
|
$this->setConfigDir(array(S9Y_TEMPLATE_USERDEFAULT));
|
|
|
|
if ( ( !is_dir($this->getCompileDir()) || !is_writable($this->getCompileDir()) ) && IN_installer !== true) {
|
|
if(ini_get('display_errors') == 0 || ini_get('display_errors') == 'off') printf(DIRECTORY_WRITE_ERROR, $this->getCompileDir());
|
|
trigger_error(sprintf(DIRECTORY_WRITE_ERROR, $this->getCompileDir()), E_USER_ERROR);
|
|
}
|
|
|
|
|
|
/*
|
|
here we go with our other Smarty class properties, which can all be called by their property name (recommended)
|
|
$smarty->use_sub_dirs = true; or by $smarty->setUseSubDirs(true); and echo $smarty->getUseSubDirs();
|
|
as the latter's would run through an internal __call() wrapper function.
|
|
Note: rodneyrehm - From within the Smarty class context you can safely access properties like Smarty::$use_sub_dirs directly.
|
|
*/
|
|
|
|
|
|
/* +++++++++++++++++++++++++++++++++++
|
|
Set Smarty caching - outsourced to README_SMARTY_CACHING_PURPOSES.txt
|
|
Not usable in Serendipity with current template structure!
|
|
*/
|
|
|
|
/* ++++++++++++++++++++++++++++++++++++++++++++++
|
|
Set all other needed Smarty class properties
|
|
*/
|
|
|
|
#$this->merge_compiled_includes = true; // $this->setMergeCompiledIncludes(true); // With this option the subtemplate code is stored together with the calling template.
|
|
|
|
// default here to be overwritten by $serendipity['production'] == 'debug' - see below!
|
|
$this->debugging = false; // $this->setDebugging(false);
|
|
|
|
// Smarty will create subdirectories under the compiled templates and cache directories if $use_sub_dirs is set to TRUE, default is FALSE.
|
|
$this->use_sub_dirs = ( ini_get('safe_mode') ? false : true ); // $this->setUseSubDirs(false); // cache and compile dir only
|
|
|
|
// Smarty should update the cache files automatically if $smarty->compile_check is true.
|
|
$this->compile_check = true; // $this->setCompileCheck(true);
|
|
#$this->compile_check = COMPILECHECK_OFF (false) - template files will not be checked
|
|
#$this->compile_check = COMPILECHECK_ON (true) - template files will always be checked
|
|
#$this->compile_check = COMPILECHECK_CACHEMISS - template files will be checked, if caching is enabled and there is no existing cache file, or it has expired
|
|
/*
|
|
Note: rodneyrehm
|
|
If you actually manage to build a page from a single template (with inclusions and plugins and stuff)
|
|
in a way that allows smarty to do 304 handling - or implement the serve-stale-while-update approach,
|
|
you should go with CACHEMISS.
|
|
*/
|
|
$this->compile_id = &$serendipity['template']; // $this->setCompileId(&$serendipity['template'])
|
|
/*
|
|
Note: rodneyrehm
|
|
Please only specify the compile_id if you really need to.
|
|
That means if you pre-process templates for say internationalization.
|
|
Otherwise you don't need this and are better off ignoring it (performance-wise).
|
|
*/
|
|
$this->config_overwrite = true; // $this->setConfigOverwrite(true);
|
|
|
|
// production == debug extends from s9y version information (alpha|beta|cvs) is always debug | USE ===
|
|
if ($serendipity['production'] === 'debug') {
|
|
$this->force_compile = true; // $this->setForceCompile(true);
|
|
$this->caching = false; // $this->setCaching(false);
|
|
$this->debugging = true; // $this->setDebugging(true);
|
|
}
|
|
|
|
// set smarty error reporting. General error_reporting is set in serendipity/serendipity_config.inc.php
|
|
$this->error_reporting = E_ALL & ~(E_NOTICE|E_STRICT);
|
|
|
|
// we use our own error_handler and get in conflicts with smarty?
|
|
// $this->muteExpectedErrors();
|
|
}
|
|
|
|
/*
|
|
Note: Ian
|
|
These BC methods are to be kept as long as not converted to new syntax in additional plugins
|
|
Search "$serendipity['smarty']->register_" (11 hits in 6 files) in additional_plugins
|
|
serendipity_event_communityrating.php, serendipity_event_customarchive.php, serendipity_event_microformats.php,
|
|
serendipity_event_multilingual.php, serendipity_event_smartymarkup.php, serendipity_event_staticpage.php
|
|
*/
|
|
|
|
/**
|
|
* Registers custom function to be used in templates - BC mode Smarty 2 -> 3
|
|
*
|
|
* @param string $function the name of the template function
|
|
* @param string $function_impl the name of the PHP function to register
|
|
* @param bool $cacheable
|
|
* @param mixed $cache_attrs
|
|
*/
|
|
public function register_function($function, $function_impl, $cacheable=true, $cache_attrs=null)
|
|
{
|
|
$this->registerPlugin('function', $function, $function_impl, $cacheable, $cache_attrs);
|
|
}
|
|
|
|
/**
|
|
* Registers modifier to be used in templates - BC mode Smarty 2 -> 3
|
|
*
|
|
* @param string $modifier name of template modifier
|
|
* @param string $modifier_impl name of PHP function to register
|
|
*/
|
|
public function register_modifier($modifier, $modifier_impl)
|
|
{
|
|
$this->registerPlugin('modifier', $modifier, $modifier_impl);
|
|
}
|
|
|
|
/**
|
|
* Registers a resource to fetch a template - BC mode Smarty 2 -> 3
|
|
*
|
|
* @param string $type name of resource
|
|
* @param array $functions array of functions to handle resource
|
|
*/
|
|
public function register_resource($type, $functions)
|
|
{
|
|
$this->registerResource($type, $functions);
|
|
}
|
|
|
|
/**
|
|
* wrapper for assign_by_ref - BC mode Smarty 2 -> 3 (Serendipity core uses assignByRef already - and nearly no occurances in additional plugins)
|
|
*
|
|
* @param string $tpl_var the template variable name
|
|
* @param mixed &$value the referenced value to assign
|
|
*/
|
|
public function assign_by_ref($tpl_var, &$value)
|
|
{
|
|
$this->assignByRef($tpl_var, $value);
|
|
}
|
|
|
|
/**
|
|
* Returns an array containing template variables- BC mode Smarty 2 -> 3
|
|
*
|
|
* @param string $name
|
|
* @return array
|
|
*/
|
|
public function get_template_vars($name=null)
|
|
{
|
|
return $this->getTemplateVars($name);
|
|
}
|
|
|
|
public static function test()
|
|
{
|
|
var_dump(get_called_class());
|
|
}
|
|
}
|
|
|