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