MINI Sh3ll
<?php
/*
* This file is part of Twig.
*
* (c) Fabien Potencier
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Twig;
use Twig\Cache\CacheInterface;
use Twig\Cache\FilesystemCache;
use Twig\Cache\NullCache;
use Twig\Error\Error;
use Twig\Error\LoaderError;
use Twig\Error\RuntimeError;
use Twig\Error\SyntaxError;
use Twig\Extension\CoreExtension;
use Twig\Extension\EscaperExtension;
use Twig\Extension\ExtensionInterface;
use Twig\Extension\GlobalsInterface;
use Twig\Extension\InitRuntimeInterface;
use Twig\Extension\OptimizerExtension;
use Twig\Extension\StagingExtension;
use Twig\Loader\ArrayLoader;
use Twig\Loader\ChainLoader;
use Twig\Loader\LoaderInterface;
use Twig\Loader\SourceContextLoaderInterface;
use Twig\Node\ModuleNode;
use Twig\NodeVisitor\NodeVisitorInterface;
use Twig\RuntimeLoader\RuntimeLoaderInterface;
use Twig\TokenParser\TokenParserInterface;
/**
* Stores the Twig configuration.
*
* @author Fabien Potencier <[email protected]>
*/
class Environment
{
const VERSION = '1.42.3';
const VERSION_ID = 14203;
const MAJOR_VERSION = 1;
const MINOR_VERSION = 42;
const RELEASE_VERSION = 3;
const EXTRA_VERSION = '';
protected $charset;
protected $loader;
protected $debug;
protected $autoReload;
protected $cache;
protected $lexer;
protected $parser;
protected $compiler;
protected $baseTemplateClass;
protected $extensions;
protected $parsers;
protected $visitors;
protected $filters;
protected $tests;
protected $functions;
protected $globals;
protected $runtimeInitialized = false;
protected $extensionInitialized = false;
protected $loadedTemplates;
protected $strictVariables;
protected $unaryOperators;
protected $binaryOperators;
protected $templateClassPrefix = '__TwigTemplate_';
protected $functionCallbacks = [];
protected $filterCallbacks = [];
protected $staging;
private $originalCache;
private $bcWriteCacheFile = false;
private $bcGetCacheFilename = false;
private $lastModifiedExtension = 0;
private $extensionsByClass = [];
private $runtimeLoaders = [];
private $runtimes = [];
private $optionsHash;
/**
* Constructor.
*
* Available options:
*
* * debug: When set to true, it automatically set "auto_reload" to true as
* well (default to false).
*
* * charset: The charset used by the templates (default to UTF-8).
*
* * base_template_class: The base template class to use for generated
* templates (default to \Twig\Template).
*
* * cache: An absolute path where to store the compiled templates,
* a \Twig\Cache\CacheInterface implementation,
* or false to disable compilation cache (default).
*
* * auto_reload: Whether to reload the template if the original source changed.
* If you don't provide the auto_reload option, it will be
* determined automatically based on the debug value.
*
* * strict_variables: Whether to ignore invalid variables in templates
* (default to false).
*
* * autoescape: Whether to enable auto-escaping (default to html):
* * false: disable auto-escaping
* * true: equivalent to html
* * html, js: set the autoescaping to one of the supported strategies
* * name: set the autoescaping strategy based on the template name extension
* * PHP callback: a PHP callback that returns an escaping strategy based on the template "name"
*
* * optimizations: A flag that indicates which optimizations to apply
* (default to -1 which means that all optimizations are enabled;
* set it to 0 to disable).
*/
public function __construct(LoaderInterface $loader = null, $options = [])
{
if (null !== $loader) {
$this->setLoader($loader);
} else {
@trigger_error('Not passing a "Twig\Lodaer\LoaderInterface" as the first constructor argument of "Twig\Environment" is deprecated since version 1.21.', E_USER_DEPRECATED);
}
$options = array_merge([
'debug' => false,
'charset' => 'UTF-8',
'base_template_class' => '\Twig\Template',
'strict_variables' => false,
'autoescape' => 'html',
'cache' => false,
'auto_reload' => null,
'optimizations' => -1,
], $options);
$this->debug = (bool) $options['debug'];
$this->charset = strtoupper($options['charset']);
$this->baseTemplateClass = $options['base_template_class'];
$this->autoReload = null === $options['auto_reload'] ? $this->debug : (bool) $options['auto_reload'];
$this->strictVariables = (bool) $options['strict_variables'];
$this->setCache($options['cache']);
$this->addExtension(new CoreExtension());
$this->addExtension(new EscaperExtension($options['autoescape']));
$this->addExtension(new OptimizerExtension($options['optimizations']));
$this->staging = new StagingExtension();
// For BC
if (\is_string($this->originalCache)) {
$r = new \ReflectionMethod($this, 'writeCacheFile');
if (__CLASS__ !== $r->getDeclaringClass()->getName()) {
@trigger_error('The Twig\Environment::writeCacheFile method is deprecated since version 1.22 and will be removed in Twig 2.0.', E_USER_DEPRECATED);
$this->bcWriteCacheFile = true;
}
$r = new \ReflectionMethod($this, 'getCacheFilename');
if (__CLASS__ !== $r->getDeclaringClass()->getName()) {
@trigger_error('The Twig\Environment::getCacheFilename method is deprecated since version 1.22 and will be removed in Twig 2.0.', E_USER_DEPRECATED);
$this->bcGetCacheFilename = true;
}
}
}
/**
* Gets the base template class for compiled templates.
*
* @return string The base template class name
*/
public function getBaseTemplateClass()
{
return $this->baseTemplateClass;
}
/**
* Sets the base template class for compiled templates.
*
* @param string $class The base template class name
*/
public function setBaseTemplateClass($class)
{
$this->baseTemplateClass = $class;
$this->updateOptionsHash();
}
/**
* Enables debugging mode.
*/
public function enableDebug()
{
$this->debug = true;
$this->updateOptionsHash();
}
/**
* Disables debugging mode.
*/
public function disableDebug()
{
$this->debug = false;
$this->updateOptionsHash();
}
/**
* Checks if debug mode is enabled.
*
* @return bool true if debug mode is enabled, false otherwise
*/
public function isDebug()
{
return $this->debug;
}
/**
* Enables the auto_reload option.
*/
public function enableAutoReload()
{
$this->autoReload = true;
}
/**
* Disables the auto_reload option.
*/
public function disableAutoReload()
{
$this->autoReload = false;
}
/**
* Checks if the auto_reload option is enabled.
*
* @return bool true if auto_reload is enabled, false otherwise
*/
public function isAutoReload()
{
return $this->autoReload;
}
/**
* Enables the strict_variables option.
*/
public function enableStrictVariables()
{
$this->strictVariables = true;
$this->updateOptionsHash();
}
/**
* Disables the strict_variables option.
*/
public function disableStrictVariables()
{
$this->strictVariables = false;
$this->updateOptionsHash();
}
/**
* Checks if the strict_variables option is enabled.
*
* @return bool true if strict_variables is enabled, false otherwise
*/
public function isStrictVariables()
{
return $this->strictVariables;
}
/**
* Gets the current cache implementation.
*
* @param bool $original Whether to return the original cache option or the real cache instance
*
* @return CacheInterface|string|false A Twig\Cache\CacheInterface implementation,
* an absolute path to the compiled templates,
* or false to disable cache
*/
public function getCache($original = true)
{
return $original ? $this->originalCache : $this->cache;
}
/**
* Sets the current cache implementation.
*
* @param CacheInterface|string|false $cache A Twig\Cache\CacheInterface implementation,
* an absolute path to the compiled templates,
* or false to disable cache
*/
public function setCache($cache)
{
if (\is_string($cache)) {
$this->originalCache = $cache;
$this->cache = new FilesystemCache($cache);
} elseif (false === $cache) {
$this->originalCache = $cache;
$this->cache = new NullCache();
} elseif (null === $cache) {
@trigger_error('Using "null" as the cache strategy is deprecated since version 1.23 and will be removed in Twig 2.0.', E_USER_DEPRECATED);
$this->originalCache = false;
$this->cache = new NullCache();
} elseif ($cache instanceof CacheInterface) {
$this->originalCache = $this->cache = $cache;
} else {
throw new \LogicException(sprintf('Cache can only be a string, false, or a \Twig\Cache\CacheInterface implementation.'));
}
}
/**
* Gets the cache filename for a given template.
*
* @param string $name The template name
*
* @return string|false The cache file name or false when caching is disabled
*
* @deprecated since 1.22 (to be removed in 2.0)
*/
public function getCacheFilename($name)
{
@trigger_error(sprintf('The %s method is deprecated since version 1.22 and will be removed in Twig 2.0.', __METHOD__), E_USER_DEPRECATED);
$key = $this->cache->generateKey($name, $this->getTemplateClass($name));
return !$key ? false : $key;
}
/**
* Gets the template class associated with the given string.
*
* The generated template class is based on the following parameters:
*
* * The cache key for the given template;
* * The currently enabled extensions;
* * Whether the Twig C extension is available or not;
* * PHP version;
* * Twig version;
* * Options with what environment was created.
*
* @param string $name The name for which to calculate the template class name
* @param int|null $index The index if it is an embedded template
*
* @return string The template class name
*/
public function getTemplateClass($name, $index = null)
{
$key = $this->getLoader()->getCacheKey($name).$this->optionsHash;
return $this->templateClassPrefix.hash('sha256', $key).(null === $index ? '' : '___'.$index);
}
/**
* Gets the template class prefix.
*
* @return string The template class prefix
*
* @deprecated since 1.22 (to be removed in 2.0)
*/
public function getTemplateClassPrefix()
{
@trigger_error(sprintf('The %s method is deprecated since version 1.22 and will be removed in Twig 2.0.', __METHOD__), E_USER_DEPRECATED);
return $this->templateClassPrefix;
}
/**
* Renders a template.
*
* @param string|TemplateWrapper $name The template name
* @param array $context An array of parameters to pass to the template
*
* @return string The rendered template
*
* @throws LoaderError When the template cannot be found
* @throws SyntaxError When an error occurred during compilation
* @throws RuntimeError When an error occurred during rendering
*/
public function render($name, array $context = [])
{
return $this->load($name)->render($context);
}
/**
* Displays a template.
*
* @param string|TemplateWrapper $name The template name
* @param array $context An array of parameters to pass to the template
*
* @throws LoaderError When the template cannot be found
* @throws SyntaxError When an error occurred during compilation
* @throws RuntimeError When an error occurred during rendering
*/
public function display($name, array $context = [])
{
$this->load($name)->display($context);
}
/**
* Loads a template.
*
* @param string|TemplateWrapper|\Twig\Template $name The template name
*
* @throws LoaderError When the template cannot be found
* @throws RuntimeError When a previously generated cache is corrupted
* @throws SyntaxError When an error occurred during compilation
*
* @return TemplateWrapper
*/
public function load($name)
{
if ($name instanceof TemplateWrapper) {
return $name;
}
if ($name instanceof Template) {
return new TemplateWrapper($this, $name);
}
return new TemplateWrapper($this, $this->loadTemplate($name));
}
/**
* Loads a template internal representation.
*
* This method is for internal use only and should never be called
* directly.
*
* @param string $name The template name
* @param int $index The index if it is an embedded template
*
* @return \Twig_TemplateInterface A template instance representing the given template name
*
* @throws LoaderError When the template cannot be found
* @throws RuntimeError When a previously generated cache is corrupted
* @throws SyntaxError When an error occurred during compilation
*
* @internal
*/
public function loadTemplate($name, $index = null)
{
return $this->loadClass($this->getTemplateClass($name), $name, $index);
}
/**
* @internal
*/
public function loadClass($cls, $name, $index = null)
{
$mainCls = $cls;
if (null !== $index) {
$cls .= '___'.$index;
}
if (isset($this->loadedTemplates[$cls])) {
return $this->loadedTemplates[$cls];
}
if (!class_exists($cls, false)) {
if ($this->bcGetCacheFilename) {
$key = $this->getCacheFilename($name);
} else {
$key = $this->cache->generateKey($name, $mainCls);
}
if (!$this->isAutoReload() || $this->isTemplateFresh($name, $this->cache->getTimestamp($key))) {
$this->cache->load($key);
}
$source = null;
if (!class_exists($cls, false)) {
$loader = $this->getLoader();
if (!$loader instanceof SourceContextLoaderInterface) {
$source = new Source($loader->getSource($name), $name);
} else {
$source = $loader->getSourceContext($name);
}
$content = $this->compileSource($source);
if ($this->bcWriteCacheFile) {
$this->writeCacheFile($key, $content);
} else {
$this->cache->write($key, $content);
$this->cache->load($key);
}
if (!class_exists($mainCls, false)) {
/* Last line of defense if either $this->bcWriteCacheFile was used,
* $this->cache is implemented as a no-op or we have a race condition
* where the cache was cleared between the above calls to write to and load from
* the cache.
*/
eval('?>'.$content);
}
}
if (!class_exists($cls, false)) {
throw new RuntimeError(sprintf('Failed to load Twig template "%s", index "%s": cache might be corrupted.', $name, $index), -1, $source);
}
}
if (!$this->runtimeInitialized) {
$this->initRuntime();
}
return $this->loadedTemplates[$cls] = new $cls($this);
}
/**
* Creates a template from source.
*
* This method should not be used as a generic way to load templates.
*
* @param string $template The template name
* @param string $name An optional name of the template to be used in error messages
*
* @return TemplateWrapper A template instance representing the given template name
*
* @throws LoaderError When the template cannot be found
* @throws SyntaxError When an error occurred during compilation
*/
public function createTemplate($template, $name = null)
{
$hash = hash('sha256', $template, false);
if (null !== $name) {
$name = sprintf('%s (string template %s)', $name, $hash);
} else {
$name = sprintf('__string_template__%s', $hash);
}
$loader = new ChainLoader([
new ArrayLoader([$name => $template]),
$current = $this->getLoader(),
]);
$this->setLoader($loader);
try {
$template = new TemplateWrapper($this, $this->loadTemplate($name));
} catch (\Exception $e) {
$this->setLoader($current);
throw $e;
} catch (\Throwable $e) {
$this->setLoader($current);
throw $e;
}
$this->setLoader($current);
return $template;
}
/**
* Returns true if the template is still fresh.
*
* Besides checking the loader for freshness information,
* this method also checks if the enabled extensions have
* not changed.
*
* @param string $name The template name
* @param int $time The last modification time of the cached template
*
* @return bool true if the template is fresh, false otherwise
*/
public function isTemplateFresh($name, $time)
{
if (0 === $this->lastModifiedExtension) {
foreach ($this->extensions as $extension) {
$r = new \ReflectionObject($extension);
if (file_exists($r->getFileName()) && ($extensionTime = filemtime($r->getFileName())) > $this->lastModifiedExtension) {
$this->lastModifiedExtension = $extensionTime;
}
}
}
return $this->lastModifiedExtension <= $time && $this->getLoader()->isFresh($name, $time);
}
/**
* Tries to load a template consecutively from an array.
*
* Similar to load() but it also accepts instances of \Twig\Template and
* \Twig\TemplateWrapper, and an array of templates where each is tried to be loaded.
*
* @param string|Template|\Twig\TemplateWrapper|array $names A template or an array of templates to try consecutively
*
* @return TemplateWrapper|Template
*
* @throws LoaderError When none of the templates can be found
* @throws SyntaxError When an error occurred during compilation
*/
public function resolveTemplate($names)
{
if (!\is_array($names)) {
$names = [$names];
}
foreach ($names as $name) {
if ($name instanceof Template) {
return $name;
}
if ($name instanceof TemplateWrapper) {
return $name;
}
try {
return $this->loadTemplate($name);
} catch (LoaderError $e) {
if (1 === \count($names)) {
throw $e;
}
}
}
throw new LoaderError(sprintf('Unable to find one of the following templates: "%s".', implode('", "', $names)));
}
/**
* Clears the internal template cache.
*
* @deprecated since 1.18.3 (to be removed in 2.0)
*/
public function clearTemplateCache()
{
@trigger_error(sprintf('The %s method is deprecated since version 1.18.3 and will be removed in Twig 2.0.', __METHOD__), E_USER_DEPRECATED);
$this->loadedTemplates = [];
}
/**
* Clears the template cache files on the filesystem.
*
* @deprecated since 1.22 (to be removed in 2.0)
*/
public function clearCacheFiles()
{
@trigger_error(sprintf('The %s method is deprecated since version 1.22 and will be removed in Twig 2.0.', __METHOD__), E_USER_DEPRECATED);
if (\is_string($this->originalCache)) {
foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($this->originalCache), \RecursiveIteratorIterator::LEAVES_ONLY) as $file) {
if ($file->isFile()) {
@unlink($file->getPathname());
}
}
}
}
/**
* Gets the Lexer instance.
*
* @return \Twig_LexerInterface
*
* @deprecated since 1.25 (to be removed in 2.0)
*/
public function getLexer()
{
@trigger_error(sprintf('The %s() method is deprecated since version 1.25 and will be removed in 2.0.', __FUNCTION__), E_USER_DEPRECATED);
if (null === $this->lexer) {
$this->lexer = new Lexer($this);
}
return $this->lexer;
}
public function setLexer(\Twig_LexerInterface $lexer)
{
$this->lexer = $lexer;
}
/**
* Tokenizes a source code.
*
* @param string|Source $source The template source code
* @param string $name The template name (deprecated)
*
* @return TokenStream
*
* @throws SyntaxError When the code is syntactically wrong
*/
public function tokenize($source, $name = null)
{
if (!$source instanceof Source) {
@trigger_error(sprintf('Passing a string as the $source argument of %s() is deprecated since version 1.27. Pass a Twig\Source instance instead.', __METHOD__), E_USER_DEPRECATED);
$source = new Source($source, $name);
}
if (null === $this->lexer) {
$this->lexer = new Lexer($this);
}
return $this->lexer->tokenize($source);
}
/**
* Gets the Parser instance.
*
* @return \Twig_ParserInterface
*
* @deprecated since 1.25 (to be removed in 2.0)
*/
public function getParser()
{
@trigger_error(sprintf('The %s() method is deprecated since version 1.25 and will be removed in 2.0.', __FUNCTION__), E_USER_DEPRECATED);
if (null === $this->parser) {
$this->parser = new Parser($this);
}
return $this->parser;
}
public function setParser(\Twig_ParserInterface $parser)
{
$this->parser = $parser;
}
/**
* Converts a token stream to a node tree.
*
* @return ModuleNode
*
* @throws SyntaxError When the token stream is syntactically or semantically wrong
*/
public function parse(TokenStream $stream)
{
if (null === $this->parser) {
$this->parser = new Parser($this);
}
return $this->parser->parse($stream);
}
/**
* Gets the Compiler instance.
*
* @return \Twig_CompilerInterface
*
* @deprecated since 1.25 (to be removed in 2.0)
*/
public function getCompiler()
{
@trigger_error(sprintf('The %s() method is deprecated since version 1.25 and will be removed in 2.0.', __FUNCTION__), E_USER_DEPRECATED);
if (null === $this->compiler) {
$this->compiler = new Compiler($this);
}
return $this->compiler;
}
public function setCompiler(\Twig_CompilerInterface $compiler)
{
$this->compiler = $compiler;
}
/**
* Compiles a node and returns the PHP code.
*
* @return string The compiled PHP source code
*/
public function compile(\Twig_NodeInterface $node)
{
if (null === $this->compiler) {
$this->compiler = new Compiler($this);
}
return $this->compiler->compile($node)->getSource();
}
/**
* Compiles a template source code.
*
* @param string|Source $source The template source code
* @param string $name The template name (deprecated)
*
* @return string The compiled PHP source code
*
* @throws SyntaxError When there was an error during tokenizing, parsing or compiling
*/
public function compileSource($source, $name = null)
{
if (!$source instanceof Source) {
@trigger_error(sprintf('Passing a string as the $source argument of %s() is deprecated since version 1.27. Pass a Twig\Source instance instead.', __METHOD__), E_USER_DEPRECATED);
$source = new Source($source, $name);
}
try {
return $this->compile($this->parse($this->tokenize($source)));
} catch (Error $e) {
$e->setSourceContext($source);
throw $e;
} catch (\Exception $e) {
throw new SyntaxError(sprintf('An exception has been thrown during the compilation of a template ("%s").', $e->getMessage()), -1, $source, $e);
}
}
public function setLoader(LoaderInterface $loader)
{
if (!$loader instanceof SourceContextLoaderInterface && 0 !== strpos(\get_class($loader), 'Mock_')) {
@trigger_error(sprintf('Twig loader "%s" should implement Twig\Loader\SourceContextLoaderInterface since version 1.27.', \get_class($loader)), E_USER_DEPRECATED);
}
$this->loader = $loader;
}
/**
* Gets the Loader instance.
*
* @return LoaderInterface
*/
public function getLoader()
{
if (null === $this->loader) {
throw new \LogicException('You must set a loader first.');
}
return $this->loader;
}
/**
* Sets the default template charset.
*
* @param string $charset The default charset
*/
public function setCharset($charset)
{
$this->charset = strtoupper($charset);
}
/**
* Gets the default template charset.
*
* @return string The default charset
*/
public function getCharset()
{
return $this->charset;
}
/**
* Initializes the runtime environment.
*
* @deprecated since 1.23 (to be removed in 2.0)
*/
public function initRuntime()
{
$this->runtimeInitialized = true;
foreach ($this->getExtensions() as $name => $extension) {
if (!$extension instanceof InitRuntimeInterface) {
$m = new \ReflectionMethod($extension, 'initRuntime');
$parentClass = $m->getDeclaringClass()->getName();
if ('Twig_Extension' !== $parentClass && 'Twig\Extension\AbstractExtension' !== $parentClass) {
@trigger_error(sprintf('Defining the initRuntime() method in the "%s" extension is deprecated since version 1.23. Use the `needs_environment` option to get the \Twig_Environment instance in filters, functions, or tests; or explicitly implement Twig\Extension\InitRuntimeInterface if needed (not recommended).', $name), E_USER_DEPRECATED);
}
}
$extension->initRuntime($this);
}
}
/**
* Returns true if the given extension is registered.
*
* @param string $class The extension class name
*
* @return bool Whether the extension is registered or not
*/
public function hasExtension($class)
{
$class = ltrim($class, '\\');
if (!isset($this->extensionsByClass[$class]) && class_exists($class, false)) {
// For BC/FC with namespaced aliases
$class = new \ReflectionClass($class);
$class = $class->name;
}
if (isset($this->extensions[$class])) {
if ($class !== \get_class($this->extensions[$class])) {
@trigger_error(sprintf('Referencing the "%s" extension by its name (defined by getName()) is deprecated since 1.26 and will be removed in Twig 2.0. Use the Fully Qualified Extension Class Name instead.', $class), E_USER_DEPRECATED);
}
return true;
}
return isset($this->extensionsByClass[$class]);
}
/**
* Adds a runtime loader.
*/
public function addRuntimeLoader(RuntimeLoaderInterface $loader)
{
$this->runtimeLoaders[] = $loader;
}
/**
* Gets an extension by class name.
*
* @param string $class The extension class name
*
* @return ExtensionInterface
*/
public function getExtension($class)
{
$class = ltrim($class, '\\');
if (!isset($this->extensionsByClass[$class]) && class_exists($class, false)) {
// For BC/FC with namespaced aliases
$class = new \ReflectionClass($class);
$class = $class->name;
}
if (isset($this->extensions[$class])) {
if ($class !== \get_class($this->extensions[$class])) {
@trigger_error(sprintf('Referencing the "%s" extension by its name (defined by getName()) is deprecated since 1.26 and will be removed in Twig 2.0. Use the Fully Qualified Extension Class Name instead.', $class), E_USER_DEPRECATED);
}
return $this->extensions[$class];
}
if (!isset($this->extensionsByClass[$class])) {
throw new RuntimeError(sprintf('The "%s" extension is not enabled.', $class));
}
return $this->extensionsByClass[$class];
}
/**
* Returns the runtime implementation of a Twig element (filter/function/test).
*
* @param string $class A runtime class name
*
* @return object The runtime implementation
*
* @throws RuntimeError When the template cannot be found
*/
public function getRuntime($class)
{
if (isset($this->runtimes[$class])) {
return $this->runtimes[$class];
}
foreach ($this->runtimeLoaders as $loader) {
if (null !== $runtime = $loader->load($class)) {
return $this->runtimes[$class] = $runtime;
}
}
throw new RuntimeError(sprintf('Unable to load the "%s" runtime.', $class));
}
public function addExtension(ExtensionInterface $extension)
{
if ($this->extensionInitialized) {
throw new \LogicException(sprintf('Unable to register extension "%s" as extensions have already been initialized.', $extension->getName()));
}
$class = \get_class($extension);
if ($class !== $extension->getName()) {
if (isset($this->extensions[$extension->getName()])) {
unset($this->extensions[$extension->getName()], $this->extensionsByClass[$class]);
@trigger_error(sprintf('The possibility to register the same extension twice ("%s") is deprecated since version 1.23 and will be removed in Twig 2.0. Use proper PHP inheritance instead.', $extension->getName()), E_USER_DEPRECATED);
}
}
$this->lastModifiedExtension = 0;
$this->extensionsByClass[$class] = $extension;
$this->extensions[$extension->getName()] = $extension;
$this->updateOptionsHash();
}
/**
* Removes an extension by name.
*
* This method is deprecated and you should not use it.
*
* @param string $name The extension name
*
* @deprecated since 1.12 (to be removed in 2.0)
*/
public function removeExtension($name)
{
@trigger_error(sprintf('The %s method is deprecated since version 1.12 and will be removed in Twig 2.0.', __METHOD__), E_USER_DEPRECATED);
if ($this->extensionInitialized) {
throw new \LogicException(sprintf('Unable to remove extension "%s" as extensions have already been initialized.', $name));
}
$class = ltrim($name, '\\');
if (!isset($this->extensionsByClass[$class]) && class_exists($class, false)) {
// For BC/FC with namespaced aliases
$class = new \ReflectionClass($class);
$class = $class->name;
}
if (isset($this->extensions[$class])) {
if ($class !== \get_class($this->extensions[$class])) {
@trigger_error(sprintf('Referencing the "%s" extension by its name (defined by getName()) is deprecated since 1.26 and will be removed in Twig 2.0. Use the Fully Qualified Extension Class Name instead.', $class), E_USER_DEPRECATED);
}
unset($this->extensions[$class]);
}
unset($this->extensions[$class]);
$this->updateOptionsHash();
}
/**
* Registers an array of extensions.
*
* @param array $extensions An array of extensions
*/
public function setExtensions(array $extensions)
{
foreach ($extensions as $extension) {
$this->addExtension($extension);
}
}
/**
* Returns all registered extensions.
*
* @return ExtensionInterface[] An array of extensions (keys are for internal usage only and should not be relied on)
*/
public function getExtensions()
{
return $this->extensions;
}
public function addTokenParser(TokenParserInterface $parser)
{
if ($this->extensionInitialized) {
throw new \LogicException('Unable to add a token parser as extensions have already been initialized.');
}
$this->staging->addTokenParser($parser);
}
/**
* Gets the registered Token Parsers.
*
* @return \Twig_TokenParserBrokerInterface
*
* @internal
*/
public function getTokenParsers()
{
if (!$this->extensionInitialized) {
$this->initExtensions();
}
return $this->parsers;
}
/**
* Gets registered tags.
*
* Be warned that this method cannot return tags defined by \Twig_TokenParserBrokerInterface classes.
*
* @return TokenParserInterface[]
*
* @internal
*/
public function getTags()
{
$tags = [];
foreach ($this->getTokenParsers()->getParsers() as $parser) {
if ($parser instanceof TokenParserInterface) {
$tags[$parser->getTag()] = $parser;
}
}
return $tags;
}
public function addNodeVisitor(NodeVisitorInterface $visitor)
{
if ($this->extensionInitialized) {
throw new \LogicException('Unable to add a node visitor as extensions have already been initialized.');
}
$this->staging->addNodeVisitor($visitor);
}
/**
* Gets the registered Node Visitors.
*
* @return NodeVisitorInterface[]
*
* @internal
*/
public function getNodeVisitors()
{
if (!$this->extensionInitialized) {
$this->initExtensions();
}
return $this->visitors;
}
/**
* Registers a Filter.
*
* @param string|TwigFilter $name The filter name or a \Twig_SimpleFilter instance
* @param \Twig_FilterInterface|TwigFilter $filter
*/
public function addFilter($name, $filter = null)
{
if (!$name instanceof TwigFilter && !($filter instanceof TwigFilter || $filter instanceof \Twig_FilterInterface)) {
throw new \LogicException('A filter must be an instance of \Twig_FilterInterface or \Twig_SimpleFilter.');
}
if ($name instanceof TwigFilter) {
$filter = $name;
$name = $filter->getName();
} else {
@trigger_error(sprintf('Passing a name as a first argument to the %s method is deprecated since version 1.21. Pass an instance of "Twig_SimpleFilter" instead when defining filter "%s".', __METHOD__, $name), E_USER_DEPRECATED);
}
if ($this->extensionInitialized) {
throw new \LogicException(sprintf('Unable to add filter "%s" as extensions have already been initialized.', $name));
}
$this->staging->addFilter($name, $filter);
}
/**
* Get a filter by name.
*
* Subclasses may override this method and load filters differently;
* so no list of filters is available.
*
* @param string $name The filter name
*
* @return \Twig_Filter|false
*
* @internal
*/
public function getFilter($name)
{
if (!$this->extensionInitialized) {
$this->initExtensions();
}
if (isset($this->filters[$name])) {
return $this->filters[$name];
}
foreach ($this->filters as $pattern => $filter) {
$pattern = str_replace('\\*', '(.*?)', preg_quote($pattern, '#'), $count);
if ($count) {
if (preg_match('#^'.$pattern.'$#', $name, $matches)) {
array_shift($matches);
$filter->setArguments($matches);
return $filter;
}
}
}
foreach ($this->filterCallbacks as $callback) {
if (false !== $filter = \call_user_func($callback, $name)) {
return $filter;
}
}
return false;
}
public function registerUndefinedFilterCallback($callable)
{
$this->filterCallbacks[] = $callable;
}
/**
* Gets the registered Filters.
*
* Be warned that this method cannot return filters defined with registerUndefinedFilterCallback.
*
* @return \Twig_FilterInterface[]
*
* @see registerUndefinedFilterCallback
*
* @internal
*/
public function getFilters()
{
if (!$this->extensionInitialized) {
$this->initExtensions();
}
return $this->filters;
}
/**
* Registers a Test.
*
* @param string|TwigTest $name The test name or a \Twig_SimpleTest instance
* @param \Twig_TestInterface|TwigTest $test A \Twig_TestInterface instance or a \Twig_SimpleTest instance
*/
public function addTest($name, $test = null)
{
if (!$name instanceof TwigTest && !($test instanceof TwigTest || $test instanceof \Twig_TestInterface)) {
throw new \LogicException('A test must be an instance of \Twig_TestInterface or \Twig_SimpleTest.');
}
if ($name instanceof TwigTest) {
$test = $name;
$name = $test->getName();
} else {
@trigger_error(sprintf('Passing a name as a first argument to the %s method is deprecated since version 1.21. Pass an instance of "Twig_SimpleTest" instead when defining test "%s".', __METHOD__, $name), E_USER_DEPRECATED);
}
if ($this->extensionInitialized) {
throw new \LogicException(sprintf('Unable to add test "%s" as extensions have already been initialized.', $name));
}
$this->staging->addTest($name, $test);
}
/**
* Gets the registered Tests.
*
* @return \Twig_TestInterface[]
*
* @internal
*/
public function getTests()
{
if (!$this->extensionInitialized) {
$this->initExtensions();
}
return $this->tests;
}
/**
* Gets a test by name.
*
* @param string $name The test name
*
* @return \Twig_Test|false
*
* @internal
*/
public function getTest($name)
{
if (!$this->extensionInitialized) {
$this->initExtensions();
}
if (isset($this->tests[$name])) {
return $this->tests[$name];
}
foreach ($this->tests as $pattern => $test) {
$pattern = str_replace('\\*', '(.*?)', preg_quote($pattern, '#'), $count);
if ($count) {
if (preg_match('#^'.$pattern.'$#', $name, $matches)) {
array_shift($matches);
$test->setArguments($matches);
return $test;
}
}
}
return false;
}
/**
* Registers a Function.
*
* @param string|TwigFunction $name The function name or a \Twig_SimpleFunction instance
* @param \Twig_FunctionInterface|TwigFunction $function
*/
public function addFunction($name, $function = null)
{
if (!$name instanceof TwigFunction && !($function instanceof TwigFunction || $function instanceof \Twig_FunctionInterface)) {
throw new \LogicException('A function must be an instance of \Twig_FunctionInterface or \Twig_SimpleFunction.');
}
if ($name instanceof TwigFunction) {
$function = $name;
$name = $function->getName();
} else {
@trigger_error(sprintf('Passing a name as a first argument to the %s method is deprecated since version 1.21. Pass an instance of "Twig_SimpleFunction" instead when defining function "%s".', __METHOD__, $name), E_USER_DEPRECATED);
}
if ($this->extensionInitialized) {
throw new \LogicException(sprintf('Unable to add function "%s" as extensions have already been initialized.', $name));
}
$this->staging->addFunction($name, $function);
}
/**
* Get a function by name.
*
* Subclasses may override this method and load functions differently;
* so no list of functions is available.
*
* @param string $name function name
*
* @return \Twig_Function|false
*
* @internal
*/
public function getFunction($name)
{
if (!$this->extensionInitialized) {
$this->initExtensions();
}
if (isset($this->functions[$name])) {
return $this->functions[$name];
}
foreach ($this->functions as $pattern => $function) {
$pattern = str_replace('\\*', '(.*?)', preg_quote($pattern, '#'), $count);
if ($count) {
if (preg_match('#^'.$pattern.'$#', $name, $matches)) {
array_shift($matches);
$function->setArguments($matches);
return $function;
}
}
}
foreach ($this->functionCallbacks as $callback) {
if (false !== $function = \call_user_func($callback, $name)) {
return $function;
}
}
return false;
}
public function registerUndefinedFunctionCallback($callable)
{
$this->functionCallbacks[] = $callable;
}
/**
* Gets registered functions.
*
* Be warned that this method cannot return functions defined with registerUndefinedFunctionCallback.
*
* @return \Twig_FunctionInterface[]
*
* @see registerUndefinedFunctionCallback
*
* @internal
*/
public function getFunctions()
{
if (!$this->extensionInitialized) {
$this->initExtensions();
}
return $this->functions;
}
/**
* Registers a Global.
*
* New globals can be added before compiling or rendering a template;
* but after, you can only update existing globals.
*
* @param string $name The global name
* @param mixed $value The global value
*/
public function addGlobal($name, $value)
{
if ($this->extensionInitialized || $this->runtimeInitialized) {
if (null === $this->globals) {
$this->globals = $this->initGlobals();
}
if (!\array_key_exists($name, $this->globals)) {
// The deprecation notice must be turned into the following exception in Twig 2.0
@trigger_error(sprintf('Registering global variable "%s" at runtime or when the extensions have already been initialized is deprecated since version 1.21.', $name), E_USER_DEPRECATED);
//throw new \LogicException(sprintf('Unable to add global "%s" as the runtime or the extensions have already been initialized.', $name));
}
}
if ($this->extensionInitialized || $this->runtimeInitialized) {
// update the value
$this->globals[$name] = $value;
} else {
$this->staging->addGlobal($name, $value);
}
}
/**
* Gets the registered Globals.
*
* @return array An array of globals
*
* @internal
*/
public function getGlobals()
{
if (!$this->runtimeInitialized && !$this->extensionInitialized) {
return $this->initGlobals();
}
if (null === $this->globals) {
$this->globals = $this->initGlobals();
}
return $this->globals;
}
/**
* Merges a context with the defined globals.
*
* @param array $context An array representing the context
*
* @return array The context merged with the globals
*/
public function mergeGlobals(array $context)
{
// we don't use array_merge as the context being generally
// bigger than globals, this code is faster.
foreach ($this->getGlobals() as $key => $value) {
if (!\array_key_exists($key, $context)) {
$context[$key] = $value;
}
}
return $context;
}
/**
* Gets the registered unary Operators.
*
* @return array An array of unary operators
*
* @internal
*/
public function getUnaryOperators()
{
if (!$this->extensionInitialized) {
$this->initExtensions();
}
return $this->unaryOperators;
}
/**
* Gets the registered binary Operators.
*
* @return array An array of binary operators
*
* @internal
*/
public function getBinaryOperators()
{
if (!$this->extensionInitialized) {
$this->initExtensions();
}
return $this->binaryOperators;
}
/**
* @deprecated since 1.23 (to be removed in 2.0)
*/
public function computeAlternatives($name, $items)
{
@trigger_error(sprintf('The %s method is deprecated since version 1.23 and will be removed in Twig 2.0.', __METHOD__), E_USER_DEPRECATED);
return SyntaxError::computeAlternatives($name, $items);
}
/**
* @internal
*/
protected function initGlobals()
{
$globals = [];
foreach ($this->extensions as $name => $extension) {
if (!$extension instanceof GlobalsInterface) {
$m = new \ReflectionMethod($extension, 'getGlobals');
$parentClass = $m->getDeclaringClass()->getName();
if ('Twig_Extension' !== $parentClass && 'Twig\Extension\AbstractExtension' !== $parentClass) {
@trigger_error(sprintf('Defining the getGlobals() method in the "%s" extension without explicitly implementing Twig\Extension\GlobalsInterface is deprecated since version 1.23.', $name), E_USER_DEPRECATED);
}
}
$extGlob = $extension->getGlobals();
if (!\is_array($extGlob)) {
throw new \UnexpectedValueException(sprintf('"%s::getGlobals()" must return an array of globals.', \get_class($extension)));
}
$globals[] = $extGlob;
}
$globals[] = $this->staging->getGlobals();
return \call_user_func_array('array_merge', $globals);
}
/**
* @internal
*/
protected function initExtensions()
{
if ($this->extensionInitialized) {
return;
}
$this->parsers = new \Twig_TokenParserBroker([], [], false);
$this->filters = [];
$this->functions = [];
$this->tests = [];
$this->visitors = [];
$this->unaryOperators = [];
$this->binaryOperators = [];
foreach ($this->extensions as $extension) {
$this->initExtension($extension);
}
$this->initExtension($this->staging);
// Done at the end only, so that an exception during initialization does not mark the environment as initialized when catching the exception
$this->extensionInitialized = true;
}
/**
* @internal
*/
protected function initExtension(ExtensionInterface $extension)
{
// filters
foreach ($extension->getFilters() as $name => $filter) {
if ($filter instanceof TwigFilter) {
$name = $filter->getName();
} else {
@trigger_error(sprintf('Using an instance of "%s" for filter "%s" is deprecated since version 1.21. Use \Twig_SimpleFilter instead.', \get_class($filter), $name), E_USER_DEPRECATED);
}
$this->filters[$name] = $filter;
}
// functions
foreach ($extension->getFunctions() as $name => $function) {
if ($function instanceof TwigFunction) {
$name = $function->getName();
} else {
@trigger_error(sprintf('Using an instance of "%s" for function "%s" is deprecated since version 1.21. Use \Twig_SimpleFunction instead.', \get_class($function), $name), E_USER_DEPRECATED);
}
$this->functions[$name] = $function;
}
// tests
foreach ($extension->getTests() as $name => $test) {
if ($test instanceof TwigTest) {
$name = $test->getName();
} else {
@trigger_error(sprintf('Using an instance of "%s" for test "%s" is deprecated since version 1.21. Use \Twig_SimpleTest instead.', \get_class($test), $name), E_USER_DEPRECATED);
}
$this->tests[$name] = $test;
}
// token parsers
foreach ($extension->getTokenParsers() as $parser) {
if ($parser instanceof TokenParserInterface) {
$this->parsers->addTokenParser($parser);
} elseif ($parser instanceof \Twig_TokenParserBrokerInterface) {
@trigger_error('Registering a \Twig_TokenParserBrokerInterface instance is deprecated since version 1.21.', E_USER_DEPRECATED);
$this->parsers->addTokenParserBroker($parser);
} else {
throw new \LogicException('getTokenParsers() must return an array of \Twig_TokenParserInterface or \Twig_TokenParserBrokerInterface instances.');
}
}
// node visitors
foreach ($extension->getNodeVisitors() as $visitor) {
$this->visitors[] = $visitor;
}
// operators
if ($operators = $extension->getOperators()) {
if (!\is_array($operators)) {
throw new \InvalidArgumentException(sprintf('"%s::getOperators()" must return an array with operators, got "%s".', \get_class($extension), \is_object($operators) ? \get_class($operators) : \gettype($operators).(\is_resource($operators) ? '' : '#'.$operators)));
}
if (2 !== \count($operators)) {
throw new \InvalidArgumentException(sprintf('"%s::getOperators()" must return an array of 2 elements, got %d.', \get_class($extension), \count($operators)));
}
$this->unaryOperators = array_merge($this->unaryOperators, $operators[0]);
$this->binaryOperators = array_merge($this->binaryOperators, $operators[1]);
}
}
/**
* @deprecated since 1.22 (to be removed in 2.0)
*/
protected function writeCacheFile($file, $content)
{
$this->cache->write($file, $content);
}
private function updateOptionsHash()
{
$hashParts = array_merge(
array_keys($this->extensions),
[
(int) \function_exists('twig_template_get_attributes'),
PHP_MAJOR_VERSION,
PHP_MINOR_VERSION,
self::VERSION,
(int) $this->debug,
$this->baseTemplateClass,
(int) $this->strictVariables,
]
);
$this->optionsHash = implode(':', $hashParts);
}
}
class_alias('Twig\Environment', 'Twig_Environment');
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