--- /dev/null
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ * (c) Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Default base class for compiled templates.
+ *
+ * This class is an implementation detail of how template compilation currently
+ * works, which might change. It should never be used directly. Use $twig->load()
+ * instead, which returns an instance of Twig_TemplateWrapper.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @internal
+ */
+abstract class Twig_Template implements Twig_TemplateInterface
+{
+ /**
+ * @internal
+ */
+ protected static $cache = array();
+
+ protected $parent;
+ protected $parents = array();
+ protected $env;
+ protected $blocks = array();
+ protected $traits = array();
+
+ public function __construct(Twig_Environment $env)
+ {
+ $this->env = $env;
+ }
+
+ /**
+ * @internal this method will be removed in 2.0 and is only used internally to provide an upgrade path from 1.x to 2.0
+ */
+ public function __toString()
+ {
+ return $this->getTemplateName();
+ }
+
+ /**
+ * Returns the template name.
+ *
+ * @return string The template name
+ */
+ abstract public function getTemplateName();
+
+ /**
+ * Returns debug information about the template.
+ *
+ * @return array Debug information
+ *
+ * @internal
+ */
+ public function getDebugInfo()
+ {
+ return array();
+ }
+
+ /**
+ * Returns the template source code.
+ *
+ * @return string The template source code
+ *
+ * @deprecated since 1.27 (to be removed in 2.0). Use getSourceContext() instead
+ */
+ public function getSource()
+ {
+ @trigger_error('The '.__METHOD__.' method is deprecated since version 1.27 and will be removed in 2.0. Use getSourceContext() instead.', E_USER_DEPRECATED);
+
+ return '';
+ }
+
+ /**
+ * Returns information about the original template source code.
+ *
+ * @return Twig_Source
+ */
+ public function getSourceContext()
+ {
+ return new Twig_Source('', $this->getTemplateName());
+ }
+
+ /**
+ * @deprecated since 1.20 (to be removed in 2.0)
+ */
+ public function getEnvironment()
+ {
+ @trigger_error('The '.__METHOD__.' method is deprecated since version 1.20 and will be removed in 2.0.', E_USER_DEPRECATED);
+
+ return $this->env;
+ }
+
+ /**
+ * Returns the parent template.
+ *
+ * This method is for internal use only and should never be called
+ * directly.
+ *
+ * @param array $context
+ *
+ * @return Twig_TemplateInterface|false The parent template or false if there is no parent
+ *
+ * @internal
+ */
+ public function getParent(array $context)
+ {
+ if (null !== $this->parent) {
+ return $this->parent;
+ }
+
+ try {
+ $parent = $this->doGetParent($context);
+
+ if (false === $parent) {
+ return false;
+ }
+
+ if ($parent instanceof self) {
+ return $this->parents[$parent->getTemplateName()] = $parent;
+ }
+
+ if (!isset($this->parents[$parent])) {
+ $this->parents[$parent] = $this->loadTemplate($parent);
+ }
+ } catch (Twig_Error_Loader $e) {
+ $e->setSourceContext(null);
+ $e->guess();
+
+ throw $e;
+ }
+
+ return $this->parents[$parent];
+ }
+
+ protected function doGetParent(array $context)
+ {
+ return false;
+ }
+
+ public function isTraitable()
+ {
+ return true;
+ }
+
+ /**
+ * Displays a parent block.
+ *
+ * This method is for internal use only and should never be called
+ * directly.
+ *
+ * @param string $name The block name to display from the parent
+ * @param array $context The context
+ * @param array $blocks The current set of blocks
+ *
+ * @internal
+ */
+ public function displayParentBlock($name, array $context, array $blocks = array())
+ {
+ $name = (string) $name;
+
+ if (isset($this->traits[$name])) {
+ $this->traits[$name][0]->displayBlock($name, $context, $blocks, false);
+ } elseif (false !== $parent = $this->getParent($context)) {
+ $parent->displayBlock($name, $context, $blocks, false);
+ } else {
+ throw new Twig_Error_Runtime(sprintf('The template has no parent and no traits defining the "%s" block.', $name), -1, $this->getSourceContext());
+ }
+ }
+
+ /**
+ * Displays a block.
+ *
+ * This method is for internal use only and should never be called
+ * directly.
+ *
+ * @param string $name The block name to display
+ * @param array $context The context
+ * @param array $blocks The current set of blocks
+ * @param bool $useBlocks Whether to use the current set of blocks
+ *
+ * @internal
+ */
+ public function displayBlock($name, array $context, array $blocks = array(), $useBlocks = true)
+ {
+ $name = (string) $name;
+
+ if ($useBlocks && isset($blocks[$name])) {
+ $template = $blocks[$name][0];
+ $block = $blocks[$name][1];
+ } elseif (isset($this->blocks[$name])) {
+ $template = $this->blocks[$name][0];
+ $block = $this->blocks[$name][1];
+ } else {
+ $template = null;
+ $block = null;
+ }
+
+ // avoid RCEs when sandbox is enabled
+ if (null !== $template && !$template instanceof self) {
+ throw new LogicException('A block must be a method on a Twig_Template instance.');
+ }
+
+ if (null !== $template) {
+ try {
+ $template->$block($context, $blocks);
+ } catch (Twig_Error $e) {
+ if (!$e->getSourceContext()) {
+ $e->setSourceContext($template->getSourceContext());
+ }
+
+ // this is mostly useful for Twig_Error_Loader exceptions
+ // see Twig_Error_Loader
+ if (false === $e->getTemplateLine()) {
+ $e->setTemplateLine(-1);
+ $e->guess();
+ }
+
+ throw $e;
+ } catch (Exception $e) {
+ throw new Twig_Error_Runtime(sprintf('An exception has been thrown during the rendering of a template ("%s").', $e->getMessage()), -1, $template->getSourceContext(), $e);
+ }
+ } elseif (false !== $parent = $this->getParent($context)) {
+ $parent->displayBlock($name, $context, array_merge($this->blocks, $blocks), false);
+ } else {
+ @trigger_error(sprintf('Silent display of undefined block "%s" in template "%s" is deprecated since version 1.29 and will throw an exception in 2.0. Use the "block(\'%s\') is defined" expression to test for block existence.', $name, $this->getTemplateName(), $name), E_USER_DEPRECATED);
+ }
+ }
+
+ /**
+ * Renders a parent block.
+ *
+ * This method is for internal use only and should never be called
+ * directly.
+ *
+ * @param string $name The block name to render from the parent
+ * @param array $context The context
+ * @param array $blocks The current set of blocks
+ *
+ * @return string The rendered block
+ *
+ * @internal
+ */
+ public function renderParentBlock($name, array $context, array $blocks = array())
+ {
+ ob_start();
+ $this->displayParentBlock($name, $context, $blocks);
+
+ return ob_get_clean();
+ }
+
+ /**
+ * Renders a block.
+ *
+ * This method is for internal use only and should never be called
+ * directly.
+ *
+ * @param string $name The block name to render
+ * @param array $context The context
+ * @param array $blocks The current set of blocks
+ * @param bool $useBlocks Whether to use the current set of blocks
+ *
+ * @return string The rendered block
+ *
+ * @internal
+ */
+ public function renderBlock($name, array $context, array $blocks = array(), $useBlocks = true)
+ {
+ ob_start();
+ $this->displayBlock($name, $context, $blocks, $useBlocks);
+
+ return ob_get_clean();
+ }
+
+ /**
+ * Returns whether a block exists or not in the current context of the template.
+ *
+ * This method checks blocks defined in the current template
+ * or defined in "used" traits or defined in parent templates.
+ *
+ * @param string $name The block name
+ * @param array $context The context
+ * @param array $blocks The current set of blocks
+ *
+ * @return bool true if the block exists, false otherwise
+ *
+ * @internal
+ */
+ public function hasBlock($name, array $context = null, array $blocks = array())
+ {
+ if (null === $context) {
+ @trigger_error('The '.__METHOD__.' method is internal and should never be called; calling it directly is deprecated since version 1.28 and won\'t be possible anymore in 2.0.', E_USER_DEPRECATED);
+
+ return isset($this->blocks[(string) $name]);
+ }
+
+ if (isset($blocks[$name])) {
+ return $blocks[$name][0] instanceof self;
+ }
+
+ if (isset($this->blocks[$name])) {
+ return true;
+ }
+
+ if (false !== $parent = $this->getParent($context)) {
+ return $parent->hasBlock($name, $context);
+ }
+
+ return false;
+ }
+
+ /**
+ * Returns all block names in the current context of the template.
+ *
+ * This method checks blocks defined in the current template
+ * or defined in "used" traits or defined in parent templates.
+ *
+ * @param array $context The context
+ * @param array $blocks The current set of blocks
+ *
+ * @return array An array of block names
+ *
+ * @internal
+ */
+ public function getBlockNames(array $context = null, array $blocks = array())
+ {
+ if (null === $context) {
+ @trigger_error('The '.__METHOD__.' method is internal and should never be called; calling it directly is deprecated since version 1.28 and won\'t be possible anymore in 2.0.', E_USER_DEPRECATED);
+
+ return array_keys($this->blocks);
+ }
+
+ $names = array_merge(array_keys($blocks), array_keys($this->blocks));
+
+ if (false !== $parent = $this->getParent($context)) {
+ $names = array_merge($names, $parent->getBlockNames($context));
+ }
+
+ return array_unique($names);
+ }
+
+ protected function loadTemplate($template, $templateName = null, $line = null, $index = null)
+ {
+ try {
+ if (is_array($template)) {
+ return $this->env->resolveTemplate($template);
+ }
+
+ if ($template instanceof self) {
+ return $template;
+ }
+
+ if ($template instanceof Twig_TemplateWrapper) {
+ return $template;
+ }
+
+ return $this->env->loadTemplate($template, $index);
+ } catch (Twig_Error $e) {
+ if (!$e->getSourceContext()) {
+ $e->setSourceContext($templateName ? new Twig_Source('', $templateName) : $this->getSourceContext());
+ }
+
+ if ($e->getTemplateLine()) {
+ throw $e;
+ }
+
+ if (!$line) {
+ $e->guess();
+ } else {
+ $e->setTemplateLine($line);
+ }
+
+ throw $e;
+ }
+ }
+
+ /**
+ * Returns all blocks.
+ *
+ * This method is for internal use only and should never be called
+ * directly.
+ *
+ * @return array An array of blocks
+ *
+ * @internal
+ */
+ public function getBlocks()
+ {
+ return $this->blocks;
+ }
+
+ public function display(array $context, array $blocks = array())
+ {
+ $this->displayWithErrorHandling($this->env->mergeGlobals($context), array_merge($this->blocks, $blocks));
+ }
+
+ public function render(array $context)
+ {
+ $level = ob_get_level();
+ ob_start();
+ try {
+ $this->display($context);
+ } catch (Exception $e) {
+ while (ob_get_level() > $level) {
+ ob_end_clean();
+ }
+
+ throw $e;
+ } catch (Throwable $e) {
+ while (ob_get_level() > $level) {
+ ob_end_clean();
+ }
+
+ throw $e;
+ }
+
+ return ob_get_clean();
+ }
+
+ protected function displayWithErrorHandling(array $context, array $blocks = array())
+ {
+ try {
+ $this->doDisplay($context, $blocks);
+ } catch (Twig_Error $e) {
+ if (!$e->getSourceContext()) {
+ $e->setSourceContext($this->getSourceContext());
+ }
+
+ // this is mostly useful for Twig_Error_Loader exceptions
+ // see Twig_Error_Loader
+ if (false === $e->getTemplateLine()) {
+ $e->setTemplateLine(-1);
+ $e->guess();
+ }
+
+ throw $e;
+ } catch (Exception $e) {
+ throw new Twig_Error_Runtime(sprintf('An exception has been thrown during the rendering of a template ("%s").', $e->getMessage()), -1, $this->getSourceContext(), $e);
+ }
+ }
+
+ /**
+ * Auto-generated method to display the template with the given context.
+ *
+ * @param array $context An array of parameters to pass to the template
+ * @param array $blocks An array of blocks to pass to the template
+ */
+ abstract protected function doDisplay(array $context, array $blocks = array());
+
+ /**
+ * Returns a variable from the context.
+ *
+ * This method is for internal use only and should never be called
+ * directly.
+ *
+ * This method should not be overridden in a sub-class as this is an
+ * implementation detail that has been introduced to optimize variable
+ * access for versions of PHP before 5.4. This is not a way to override
+ * the way to get a variable value.
+ *
+ * @param array $context The context
+ * @param string $item The variable to return from the context
+ * @param bool $ignoreStrictCheck Whether to ignore the strict variable check or not
+ *
+ * @return mixed The content of the context variable
+ *
+ * @throws Twig_Error_Runtime if the variable does not exist and Twig is running in strict mode
+ *
+ * @internal
+ */
+ final protected function getContext($context, $item, $ignoreStrictCheck = false)
+ {
+ if (!array_key_exists($item, $context)) {
+ if ($ignoreStrictCheck || !$this->env->isStrictVariables()) {
+ return;
+ }
+
+ throw new Twig_Error_Runtime(sprintf('Variable "%s" does not exist.', $item), -1, $this->getSourceContext());
+ }
+
+ return $context[$item];
+ }
+
+ /**
+ * Returns the attribute value for a given array/object.
+ *
+ * @param mixed $object The object or array from where to get the item
+ * @param mixed $item The item to get from the array or object
+ * @param array $arguments An array of arguments to pass if the item is an object method
+ * @param string $type The type of attribute (@see Twig_Template constants)
+ * @param bool $isDefinedTest Whether this is only a defined check
+ * @param bool $ignoreStrictCheck Whether to ignore the strict attribute check or not
+ *
+ * @return mixed The attribute value, or a Boolean when $isDefinedTest is true, or null when the attribute is not set and $ignoreStrictCheck is true
+ *
+ * @throws Twig_Error_Runtime if the attribute does not exist and Twig is running in strict mode and $isDefinedTest is false
+ *
+ * @internal
+ */
+ protected function getAttribute($object, $item, array $arguments = array(), $type = self::ANY_CALL, $isDefinedTest = false, $ignoreStrictCheck = false)
+ {
+ // array
+ if (self::METHOD_CALL !== $type) {
+ $arrayItem = is_bool($item) || is_float($item) ? (int) $item : $item;
+
+ if ((is_array($object) && (isset($object[$arrayItem]) || array_key_exists($arrayItem, $object)))
+ || ($object instanceof ArrayAccess && isset($object[$arrayItem]))
+ ) {
+ if ($isDefinedTest) {
+ return true;
+ }
+
+ return $object[$arrayItem];
+ }
+
+ if (self::ARRAY_CALL === $type || !is_object($object)) {
+ if ($isDefinedTest) {
+ return false;
+ }
+
+ if ($ignoreStrictCheck || !$this->env->isStrictVariables()) {
+ return;
+ }
+
+ if ($object instanceof ArrayAccess) {
+ $message = sprintf('Key "%s" in object with ArrayAccess of class "%s" does not exist.', $arrayItem, get_class($object));
+ } elseif (is_object($object)) {
+ $message = sprintf('Impossible to access a key "%s" on an object of class "%s" that does not implement ArrayAccess interface.', $item, get_class($object));
+ } elseif (is_array($object)) {
+ if (empty($object)) {
+ $message = sprintf('Key "%s" does not exist as the array is empty.', $arrayItem);
+ } else {
+ $message = sprintf('Key "%s" for array with keys "%s" does not exist.', $arrayItem, implode(', ', array_keys($object)));
+ }
+ } elseif (self::ARRAY_CALL === $type) {
+ if (null === $object) {
+ $message = sprintf('Impossible to access a key ("%s") on a null variable.', $item);
+ } else {
+ $message = sprintf('Impossible to access a key ("%s") on a %s variable ("%s").', $item, gettype($object), $object);
+ }
+ } elseif (null === $object) {
+ $message = sprintf('Impossible to access an attribute ("%s") on a null variable.', $item);
+ } else {
+ $message = sprintf('Impossible to access an attribute ("%s") on a %s variable ("%s").', $item, gettype($object), $object);
+ }
+
+ throw new Twig_Error_Runtime($message, -1, $this->getSourceContext());
+ }
+ }
+
+ if (!is_object($object)) {
+ if ($isDefinedTest) {
+ return false;
+ }
+
+ if ($ignoreStrictCheck || !$this->env->isStrictVariables()) {
+ return;
+ }
+
+ if (null === $object) {
+ $message = sprintf('Impossible to invoke a method ("%s") on a null variable.', $item);
+ } else {
+ $message = sprintf('Impossible to invoke a method ("%s") on a %s variable ("%s").', $item, gettype($object), $object);
+ }
+
+ throw new Twig_Error_Runtime($message, -1, $this->getSourceContext());
+ }
+
+ // object property
+ if (self::METHOD_CALL !== $type && !$object instanceof self) { // Twig_Template does not have public properties, and we don't want to allow access to internal ones
+ if (isset($object->$item) || array_key_exists((string) $item, $object)) {
+ if ($isDefinedTest) {
+ return true;
+ }
+
+ if ($this->env->hasExtension('Twig_Extension_Sandbox')) {
+ $this->env->getExtension('Twig_Extension_Sandbox')->checkPropertyAllowed($object, $item);
+ }
+
+ return $object->$item;
+ }
+ }
+
+ $class = get_class($object);
+
+ // object method
+ if (!isset(self::$cache[$class])) {
+ // get_class_methods returns all methods accessible in the scope, but we only want public ones to be accessible in templates
+ if ($object instanceof self) {
+ $ref = new ReflectionClass($class);
+ $methods = array();
+
+ foreach ($ref->getMethods(ReflectionMethod::IS_PUBLIC) as $refMethod) {
+ // Accessing the environment from templates is forbidden to prevent untrusted changes to the environment
+ if ('getenvironment' !== strtolower($refMethod->name)) {
+ $methods[] = $refMethod->name;
+ }
+ }
+ } else {
+ $methods = get_class_methods($object);
+ }
+ // sort values to have consistent behavior, so that "get" methods win precedence over "is" methods
+ sort($methods);
+
+ $cache = array();
+
+ foreach ($methods as $method) {
+ $cache[$method] = $method;
+ $cache[$lcName = strtolower($method)] = $method;
+
+ if ('g' === $lcName[0] && 0 === strpos($lcName, 'get')) {
+ $name = substr($method, 3);
+ $lcName = substr($lcName, 3);
+ } elseif ('i' === $lcName[0] && 0 === strpos($lcName, 'is')) {
+ $name = substr($method, 2);
+ $lcName = substr($lcName, 2);
+ } else {
+ continue;
+ }
+
+ if (!isset($cache[$name])) {
+ $cache[$name] = $method;
+ }
+ if (!isset($cache[$lcName])) {
+ $cache[$lcName] = $method;
+ }
+ }
+ self::$cache[$class] = $cache;
+ }
+
+ $call = false;
+ if (isset(self::$cache[$class][$item])) {
+ $method = self::$cache[$class][$item];
+ } elseif (isset(self::$cache[$class][$lcItem = strtolower($item)])) {
+ $method = self::$cache[$class][$lcItem];
+ } elseif (isset(self::$cache[$class]['__call'])) {
+ $method = $item;
+ $call = true;
+ } else {
+ if ($isDefinedTest) {
+ return false;
+ }
+
+ if ($ignoreStrictCheck || !$this->env->isStrictVariables()) {
+ return;
+ }
+
+ throw new Twig_Error_Runtime(sprintf('Neither the property "%1$s" nor one of the methods "%1$s()", "get%1$s()"/"is%1$s()" or "__call()" exist and have public access in class "%2$s".', $item, $class), -1, $this->getSourceContext());
+ }
+
+ if ($isDefinedTest) {
+ return true;
+ }
+
+ if ($this->env->hasExtension('Twig_Extension_Sandbox')) {
+ $this->env->getExtension('Twig_Extension_Sandbox')->checkMethodAllowed($object, $method);
+ }
+
+ // Some objects throw exceptions when they have __call, and the method we try
+ // to call is not supported. If ignoreStrictCheck is true, we should return null.
+ try {
+ if (!$arguments) {
+ $ret = $object->$method();
+ } else {
+ $ret = call_user_func_array(array($object, $method), $arguments);
+ }
+ } catch (BadMethodCallException $e) {
+ if ($call && ($ignoreStrictCheck || !$this->env->isStrictVariables())) {
+ return;
+ }
+ throw $e;
+ }
+
+ // @deprecated in 1.28
+ if ($object instanceof Twig_TemplateInterface) {
+ $self = $object->getTemplateName() === $this->getTemplateName();
+ $message = sprintf('Calling "%s" on template "%s" from template "%s" is deprecated since version 1.28 and won\'t be supported anymore in 2.0.', $item, $object->getTemplateName(), $this->getTemplateName());
+ if ('renderBlock' === $method || 'displayBlock' === $method) {
+ $message .= sprintf(' Use block("%s"%s) instead).', $arguments[0], $self ? '' : ', template');
+ } elseif ('hasBlock' === $method) {
+ $message .= sprintf(' Use "block("%s"%s) is defined" instead).', $arguments[0], $self ? '' : ', template');
+ } elseif ('render' === $method || 'display' === $method) {
+ $message .= sprintf(' Use include("%s") instead).', $object->getTemplateName());
+ }
+ @trigger_error($message, E_USER_DEPRECATED);
+
+ return $ret === '' ? '' : new Twig_Markup($ret, $this->env->getCharset());
+ }
+
+ return $ret;
+ }
+}
projects / yaffs-website / blobdiff