mirror of
https://github.com/vichan-devel/vichan.git
synced 2024-12-01 02:27:24 +01:00
516 lines
17 KiB
PHP
516 lines
17 KiB
PHP
<?php
|
|
|
|
/*
|
|
* This file is part of Twig.
|
|
*
|
|
* (c) 2009 Fabien Potencier
|
|
* (c) 2009 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.
|
|
*
|
|
* @author Fabien Potencier <fabien@symfony.com>
|
|
*/
|
|
abstract class Twig_Template implements Twig_TemplateInterface
|
|
{
|
|
protected static $cache = array();
|
|
|
|
protected $parent;
|
|
protected $parents = array();
|
|
protected $env;
|
|
protected $blocks;
|
|
protected $traits;
|
|
|
|
/**
|
|
* Constructor.
|
|
*
|
|
* @param Twig_Environment $env A Twig_Environment instance
|
|
*/
|
|
public function __construct(Twig_Environment $env)
|
|
{
|
|
$this->env = $env;
|
|
$this->blocks = array();
|
|
$this->traits = array();
|
|
}
|
|
|
|
/**
|
|
* Returns the template name.
|
|
*
|
|
* @return string The template name
|
|
*/
|
|
abstract public function getTemplateName();
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function getEnvironment()
|
|
{
|
|
return $this->env;
|
|
}
|
|
|
|
/**
|
|
* Returns the parent template.
|
|
*
|
|
* This method is for internal use only and should never be called
|
|
* directly.
|
|
*
|
|
* @return Twig_TemplateInterface|false The parent template or false if there is no parent
|
|
*/
|
|
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 Twig_Template) {
|
|
return $this->parents[$parent->getTemplateName()] = $parent;
|
|
}
|
|
|
|
if (!isset($this->parents[$parent])) {
|
|
$this->parents[$parent] = $this->loadTemplate($parent);
|
|
}
|
|
} catch (Twig_Error_Loader $e) {
|
|
$e->setTemplateFile(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 $blocks The current set of blocks
|
|
*/
|
|
public function displayParentBlock($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->getTemplateName());
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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 $useBlocks Whether to use the current set of blocks
|
|
*/
|
|
public function displayBlock($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;
|
|
}
|
|
|
|
if (null !== $template) {
|
|
try {
|
|
$template->$block($context, $blocks);
|
|
} catch (Twig_Error $e) {
|
|
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->getTemplateName(), $e);
|
|
}
|
|
} elseif (false !== $parent = $this->getParent($context)) {
|
|
$parent->displayBlock($name, $context, array_merge($this->blocks, $blocks), false);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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 $blocks The current set of blocks
|
|
*
|
|
* @return string The rendered block
|
|
*/
|
|
public function renderParentBlock($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 $useBlocks Whether to use the current set of blocks
|
|
*
|
|
* @return string The rendered block
|
|
*/
|
|
public function renderBlock($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.
|
|
*
|
|
* This method is for internal use only and should never be called
|
|
* directly.
|
|
*
|
|
* This method does only return blocks defined in the current template
|
|
* or defined in "used" traits.
|
|
*
|
|
* It does not return blocks from parent templates as the parent
|
|
* template name can be dynamic, which is only known based on the
|
|
* current context.
|
|
*
|
|
* @param string $name The block name
|
|
*
|
|
* @return bool true if the block exists, false otherwise
|
|
*/
|
|
public function hasBlock($name)
|
|
{
|
|
return isset($this->blocks[(string) $name]);
|
|
}
|
|
|
|
/**
|
|
* Returns all block names.
|
|
*
|
|
* This method is for internal use only and should never be called
|
|
* directly.
|
|
*
|
|
* @return array An array of block names
|
|
*
|
|
* @see hasBlock
|
|
*/
|
|
public function getBlockNames()
|
|
{
|
|
return array_keys($this->blocks);
|
|
}
|
|
|
|
protected function loadTemplate($template, $templateName = null, $line = null, $index = null)
|
|
{
|
|
try {
|
|
if (is_array($template)) {
|
|
return $this->env->resolveTemplate($template);
|
|
}
|
|
|
|
if ($template instanceof Twig_Template) {
|
|
return $template;
|
|
}
|
|
|
|
return $this->env->loadTemplate($template, $index);
|
|
} catch (Twig_Error $e) {
|
|
$e->setTemplateFile($templateName ? $templateName : $this->getTemplateName());
|
|
if (!$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
|
|
*
|
|
* @see hasBlock
|
|
*/
|
|
public function getBlocks()
|
|
{
|
|
return $this->blocks;
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function display(array $context, array $blocks = array())
|
|
{
|
|
$this->displayWithErrorHandling($this->env->mergeGlobals($context), array_merge($this->blocks, $blocks));
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
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;
|
|
}
|
|
|
|
return ob_get_clean();
|
|
}
|
|
|
|
protected function displayWithErrorHandling(array $context, array $blocks = array())
|
|
{
|
|
try {
|
|
$this->doDisplay($context, $blocks);
|
|
} catch (Twig_Error $e) {
|
|
if (!$e->getTemplateFile()) {
|
|
$e->setTemplateFile($this->getTemplateName());
|
|
}
|
|
|
|
// 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->getTemplateName(), $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 $ignoreStrictCheck Whether to ignore the strict variable check or not
|
|
*
|
|
* @return The content of the context variable
|
|
*
|
|
* @throws Twig_Error_Runtime if the variable does not exist and Twig is running in strict mode
|
|
*/
|
|
final protected function getContext($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->getTemplateName());
|
|
}
|
|
|
|
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 $isDefinedTest is false
|
|
*/
|
|
protected function getAttribute($object, $item, array $arguments = array(), $type = Twig_Template::ANY_CALL, $isDefinedTest = false, $ignoreStrictCheck = false)
|
|
{
|
|
// array
|
|
if (Twig_Template::METHOD_CALL !== $type) {
|
|
$arrayItem = is_bool($item) || is_float($item) ? (int) $item : $item;
|
|
|
|
if ((is_array($object) && array_key_exists($arrayItem, $object))
|
|
|| ($object instanceof ArrayAccess && isset($object[$arrayItem]))
|
|
) {
|
|
if ($isDefinedTest) {
|
|
return true;
|
|
}
|
|
|
|
return $object[$arrayItem];
|
|
}
|
|
|
|
if (Twig_Template::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 (Twig_Template::ARRAY_CALL === $type) {
|
|
$message = sprintf('Impossible to access a key ("%s") on a %s variable ("%s")', $item, gettype($object), $object);
|
|
} 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, $this->getTemplateName());
|
|
}
|
|
}
|
|
|
|
if (!is_object($object)) {
|
|
if ($isDefinedTest) {
|
|
return false;
|
|
}
|
|
|
|
if ($ignoreStrictCheck || !$this->env->isStrictVariables()) {
|
|
return;
|
|
}
|
|
|
|
throw new Twig_Error_Runtime(sprintf('Impossible to invoke a method ("%s") on a %s variable ("%s")', $item, gettype($object), $object), -1, $this->getTemplateName());
|
|
}
|
|
|
|
// object property
|
|
if (Twig_Template::METHOD_CALL !== $type) {
|
|
if (isset($object->$item) || array_key_exists((string) $item, $object)) {
|
|
if ($isDefinedTest) {
|
|
return true;
|
|
}
|
|
|
|
if ($this->env->hasExtension('sandbox')) {
|
|
$this->env->getExtension('sandbox')->checkPropertyAllowed($object, $item);
|
|
}
|
|
|
|
return $object->$item;
|
|
}
|
|
}
|
|
|
|
$class = get_class($object);
|
|
|
|
// object method
|
|
if (!isset(self::$cache[$class]['methods'])) {
|
|
self::$cache[$class]['methods'] = array_change_key_case(array_flip(get_class_methods($object)));
|
|
}
|
|
|
|
$call = false;
|
|
$lcItem = strtolower($item);
|
|
if (isset(self::$cache[$class]['methods'][$lcItem])) {
|
|
$method = (string) $item;
|
|
} elseif (isset(self::$cache[$class]['methods']['get'.$lcItem])) {
|
|
$method = 'get'.$item;
|
|
} elseif (isset(self::$cache[$class]['methods']['is'.$lcItem])) {
|
|
$method = 'is'.$item;
|
|
} elseif (isset(self::$cache[$class]['methods']['__call'])) {
|
|
$method = (string) $item;
|
|
$call = true;
|
|
} else {
|
|
if ($isDefinedTest) {
|
|
return false;
|
|
}
|
|
|
|
if ($ignoreStrictCheck || !$this->env->isStrictVariables()) {
|
|
return;
|
|
}
|
|
|
|
throw new Twig_Error_Runtime(sprintf('Method "%s" for object "%s" does not exist', $item, get_class($object)), -1, $this->getTemplateName());
|
|
}
|
|
|
|
if ($isDefinedTest) {
|
|
return true;
|
|
}
|
|
|
|
if ($this->env->hasExtension('sandbox')) {
|
|
$this->env->getExtension('sandbox')->checkMethodAllowed($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 {
|
|
$ret = call_user_func_array(array($object, $method), $arguments);
|
|
} catch (BadMethodCallException $e) {
|
|
if ($call && ($ignoreStrictCheck || !$this->env->isStrictVariables())) {
|
|
return;
|
|
}
|
|
throw $e;
|
|
}
|
|
|
|
// useful when calling a template method from a template
|
|
// this is not supported but unfortunately heavily used in the Symfony profiler
|
|
if ($object instanceof Twig_TemplateInterface) {
|
|
return $ret === '' ? '' : new Twig_Markup($ret, $this->env->getCharset());
|
|
}
|
|
|
|
return $ret;
|
|
}
|
|
}
|