www.gusucode.com > Piwik 网站流量统计系统 v2.9.1PHP源码程序 > Piwik 网站流量统计系统 v2.9.1/How to install Piwik.html/piwik/vendor/twig/twig/lib/Twig/Node/SandboxedModule.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. */ /** * Represents a module node. * * @author Fabien Potencier <fabien@symfony.com> */ class Twig_Node_SandboxedModule extends Twig_Node_Module { protected $usedFilters; protected $usedTags; protected $usedFunctions; public function __construct(Twig_Node_Module $node, array $usedFilters, array $usedTags, array $usedFunctions) { parent::__construct($node->getNode('body'), $node->getNode('parent'), $node->getNode('blocks'), $node->getNode('macros'), $node->getNode('traits'), $node->getAttribute('embedded_templates'), $node->getAttribute('filename')); $this->setAttribute('index', $node->getAttribute('index')); $this->usedFilters = $usedFilters; $this->usedTags = $usedTags; $this->usedFunctions = $usedFunctions; } protected function compileDisplayBody(Twig_Compiler $compiler) { $compiler->write("\$this->checkSecurity();\n"); parent::compileDisplayBody($compiler); } protected function compileDisplayFooter(Twig_Compiler $compiler) { parent::compileDisplayFooter($compiler); $tags = $filters = $functions = array(); foreach (array('tags', 'filters', 'functions') as $type) { foreach ($this->{'used'.ucfirst($type)} as $name => $node) { if ($node instanceof Twig_Node) { ${$type}[$name] = $node->getLine(); } else { ${$type}[$node] = null; } } } $compiler ->write("protected function checkSecurity()\n", "{\n") ->indent() ->write("\$tags = ")->repr(array_filter($tags))->raw(";\n") ->write("\$filters = ")->repr(array_filter($filters))->raw(";\n") ->write("\$functions = ")->repr(array_filter($functions))->raw(";\n\n") ->write("try {\n") ->indent() ->write("\$this->env->getExtension('sandbox')->checkSecurity(\n") ->indent() ->write(!$tags ? "array(),\n" : "array('".implode("', '", array_keys($tags))."'),\n") ->write(!$filters ? "array(),\n" : "array('".implode("', '", array_keys($filters))."'),\n") ->write(!$functions ? "array()\n" : "array('".implode("', '", array_keys($functions))."')\n") ->outdent() ->write(");\n") ->outdent() ->write("} catch (Twig_Sandbox_SecurityError \$e) {\n") ->indent() ->write("\$e->setTemplateFile(\$this->getTemplateName());\n\n") ->write("if (\$e instanceof Twig_Sandbox_SecurityNotAllowedTagError && isset(\$tags[\$e->getTagName()])) {\n") ->indent() ->write("\$e->setTemplateLine(\$tags[\$e->getTagName()]);\n") ->outdent() ->write("} elseif (\$e instanceof Twig_Sandbox_SecurityNotAllowedFilterError && isset(\$filters[\$e->getFilterName()])) {\n") ->indent() ->write("\$e->setTemplateLine(\$filters[\$e->getFilterName()]);\n") ->outdent() ->write("} elseif (\$e instanceof Twig_Sandbox_SecurityNotAllowedFunctionError && isset(\$functions[\$e->getFunctionName()])) {\n") ->indent() ->write("\$e->setTemplateLine(\$functions[\$e->getFunctionName()]);\n") ->outdent() ->write("}\n\n") ->write("throw \$e;\n") ->outdent() ->write("}\n") ->outdent() ->write("}\n\n") ; } }