117 lines
3.3 KiB
PHP
117 lines
3.3 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Templating\Loader;
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use Symfony\Component\Templating\Storage\FileStorage;
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use Symfony\Component\Templating\Storage\Storage;
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use Symfony\Component\Templating\TemplateReferenceInterface;
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/**
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* FilesystemLoader is a loader that read templates from the filesystem.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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class FilesystemLoader extends Loader
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{
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protected $templatePathPatterns;
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/**
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* @param string|string[] $templatePathPatterns An array of path patterns to look for templates
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*/
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public function __construct($templatePathPatterns)
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{
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$this->templatePathPatterns = (array) $templatePathPatterns;
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}
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/**
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* Loads a template.
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*
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* @return Storage|bool false if the template cannot be loaded, a Storage instance otherwise
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*/
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public function load(TemplateReferenceInterface $template)
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{
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$file = $template->get('name');
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if (self::isAbsolutePath($file) && is_file($file)) {
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return new FileStorage($file);
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}
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$replacements = [];
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foreach ($template->all() as $key => $value) {
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$replacements['%'.$key.'%'] = $value;
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}
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$fileFailures = [];
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foreach ($this->templatePathPatterns as $templatePathPattern) {
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if (is_file($file = strtr($templatePathPattern, $replacements)) && is_readable($file)) {
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if (null !== $this->logger) {
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$this->logger->debug('Loaded template file.', ['file' => $file]);
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}
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return new FileStorage($file);
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}
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if (null !== $this->logger) {
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$fileFailures[] = $file;
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}
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}
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// only log failures if no template could be loaded at all
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foreach ($fileFailures as $file) {
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if (null !== $this->logger) {
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$this->logger->debug('Failed loading template file.', ['file' => $file]);
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}
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}
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return false;
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}
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/**
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* Returns true if the template is still fresh.
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*
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* @param TemplateReferenceInterface $template A template
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* @param int $time The last modification time of the cached template (timestamp)
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*
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* @return bool true if the template is still fresh, false otherwise
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*/
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public function isFresh(TemplateReferenceInterface $template, $time)
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{
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if (false === $storage = $this->load($template)) {
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return false;
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}
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return filemtime((string) $storage) < $time;
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}
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/**
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* Returns true if the file is an existing absolute path.
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*
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* @param string $file A path
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*
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* @return bool true if the path exists and is absolute, false otherwise
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*/
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protected static function isAbsolutePath($file)
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{
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if ('/' == $file[0] || '\\' == $file[0]
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|| (\strlen($file) > 3 && ctype_alpha($file[0])
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&& ':' == $file[1]
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&& ('\\' == $file[2] || '/' == $file[2])
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)
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|| null !== parse_url($file, \PHP_URL_SCHEME)
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) {
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return true;
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}
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return false;
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}
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}
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