--- /dev/null
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Loads template from the filesystem.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Loader_Filesystem implements Twig_LoaderInterface, Twig_ExistsLoaderInterface, Twig_SourceContextLoaderInterface
+{
+ /** Identifier of the main namespace. */
+ const MAIN_NAMESPACE = '__main__';
+
+ protected $paths = array();
+ protected $cache = array();
+ protected $errorCache = array();
+
+ private $rootPath;
+
+ /**
+ * @param string|array $paths A path or an array of paths where to look for templates
+ * @param string|null $rootPath The root path common to all relative paths (null for getcwd())
+ */
+ public function __construct($paths = array(), $rootPath = null)
+ {
+ $this->rootPath = (null === $rootPath ? getcwd() : $rootPath).DIRECTORY_SEPARATOR;
+ if (false !== $realPath = realpath($rootPath)) {
+ $this->rootPath = $realPath.DIRECTORY_SEPARATOR;
+ }
+
+ if ($paths) {
+ $this->setPaths($paths);
+ }
+ }
+
+ /**
+ * Returns the paths to the templates.
+ *
+ * @param string $namespace A path namespace
+ *
+ * @return array The array of paths where to look for templates
+ */
+ public function getPaths($namespace = self::MAIN_NAMESPACE)
+ {
+ return isset($this->paths[$namespace]) ? $this->paths[$namespace] : array();
+ }
+
+ /**
+ * Returns the path namespaces.
+ *
+ * The main namespace is always defined.
+ *
+ * @return array The array of defined namespaces
+ */
+ public function getNamespaces()
+ {
+ return array_keys($this->paths);
+ }
+
+ /**
+ * Sets the paths where templates are stored.
+ *
+ * @param string|array $paths A path or an array of paths where to look for templates
+ * @param string $namespace A path namespace
+ */
+ public function setPaths($paths, $namespace = self::MAIN_NAMESPACE)
+ {
+ if (!is_array($paths)) {
+ $paths = array($paths);
+ }
+
+ $this->paths[$namespace] = array();
+ foreach ($paths as $path) {
+ $this->addPath($path, $namespace);
+ }
+ }
+
+ /**
+ * Adds a path where templates are stored.
+ *
+ * @param string $path A path where to look for templates
+ * @param string $namespace A path namespace
+ *
+ * @throws Twig_Error_Loader
+ */
+ public function addPath($path, $namespace = self::MAIN_NAMESPACE)
+ {
+ // invalidate the cache
+ $this->cache = $this->errorCache = array();
+
+ $checkPath = $this->isAbsolutePath($path) ? $path : $this->rootPath.$path;
+ if (!is_dir($checkPath)) {
+ throw new Twig_Error_Loader(sprintf('The "%s" directory does not exist ("%s").', $path, $checkPath));
+ }
+
+ $this->paths[$namespace][] = rtrim($path, '/\\');
+ }
+
+ /**
+ * Prepends a path where templates are stored.
+ *
+ * @param string $path A path where to look for templates
+ * @param string $namespace A path namespace
+ *
+ * @throws Twig_Error_Loader
+ */
+ public function prependPath($path, $namespace = self::MAIN_NAMESPACE)
+ {
+ // invalidate the cache
+ $this->cache = $this->errorCache = array();
+
+ $checkPath = $this->isAbsolutePath($path) ? $path : $this->rootPath.$path;
+ if (!is_dir($checkPath)) {
+ throw new Twig_Error_Loader(sprintf('The "%s" directory does not exist ("%s").', $path, $checkPath));
+ }
+
+ $path = rtrim($path, '/\\');
+
+ if (!isset($this->paths[$namespace])) {
+ $this->paths[$namespace][] = $path;
+ } else {
+ array_unshift($this->paths[$namespace], $path);
+ }
+ }
+
+ public function getSource($name)
+ {
+ @trigger_error(sprintf('Calling "getSource" on "%s" is deprecated since 1.27. Use getSourceContext() instead.', get_class($this)), E_USER_DEPRECATED);
+
+ return file_get_contents($this->findTemplate($name));
+ }
+
+ public function getSourceContext($name)
+ {
+ $path = $this->findTemplate($name);
+
+ return new Twig_Source(file_get_contents($path), $name, $path);
+ }
+
+ public function getCacheKey($name)
+ {
+ $path = $this->findTemplate($name);
+ $len = strlen($this->rootPath);
+ if (0 === strncmp($this->rootPath, $path, $len)) {
+ return substr($path, $len);
+ }
+
+ return $path;
+ }
+
+ public function exists($name)
+ {
+ $name = $this->normalizeName($name);
+
+ if (isset($this->cache[$name])) {
+ return true;
+ }
+
+ try {
+ return false !== $this->findTemplate($name, false);
+ } catch (Twig_Error_Loader $exception) {
+ @trigger_error(sprintf('In %s::findTemplate(), you must accept a second argument that when set to "false" returns "false" instead of throwing an exception. Not supporting this argument is deprecated since version 1.27.', get_class($this)), E_USER_DEPRECATED);
+
+ return false;
+ }
+ }
+
+ public function isFresh($name, $time)
+ {
+ return filemtime($this->findTemplate($name)) <= $time;
+ }
+
+ protected function findTemplate($name)
+ {
+ $throw = func_num_args() > 1 ? func_get_arg(1) : true;
+ $name = $this->normalizeName($name);
+
+ if (isset($this->cache[$name])) {
+ return $this->cache[$name];
+ }
+
+ if (isset($this->errorCache[$name])) {
+ if (!$throw) {
+ return false;
+ }
+
+ throw new Twig_Error_Loader($this->errorCache[$name]);
+ }
+
+ $this->validateName($name);
+
+ list($namespace, $shortname) = $this->parseName($name);
+
+ if (!isset($this->paths[$namespace])) {
+ $this->errorCache[$name] = sprintf('There are no registered paths for namespace "%s".', $namespace);
+
+ if (!$throw) {
+ return false;
+ }
+
+ throw new Twig_Error_Loader($this->errorCache[$name]);
+ }
+
+ foreach ($this->paths[$namespace] as $path) {
+ if (!$this->isAbsolutePath($path)) {
+ $path = $this->rootPath.'/'.$path;
+ }
+
+ if (is_file($path.'/'.$shortname)) {
+ if (false !== $realpath = realpath($path.'/'.$shortname)) {
+ return $this->cache[$name] = $realpath;
+ }
+
+ return $this->cache[$name] = $path.'/'.$shortname;
+ }
+ }
+
+ $this->errorCache[$name] = sprintf('Unable to find template "%s" (looked into: %s).', $name, implode(', ', $this->paths[$namespace]));
+
+ if (!$throw) {
+ return false;
+ }
+
+ throw new Twig_Error_Loader($this->errorCache[$name]);
+ }
+
+ protected function parseName($name, $default = self::MAIN_NAMESPACE)
+ {
+ if (isset($name[0]) && '@' == $name[0]) {
+ if (false === $pos = strpos($name, '/')) {
+ throw new Twig_Error_Loader(sprintf('Malformed namespaced template name "%s" (expecting "@namespace/template_name").', $name));
+ }
+
+ $namespace = substr($name, 1, $pos - 1);
+ $shortname = substr($name, $pos + 1);
+
+ return array($namespace, $shortname);
+ }
+
+ return array($default, $name);
+ }
+
+ protected function normalizeName($name)
+ {
+ return preg_replace('#/{2,}#', '/', str_replace('\\', '/', (string) $name));
+ }
+
+ protected function validateName($name)
+ {
+ if (false !== strpos($name, "\0")) {
+ throw new Twig_Error_Loader('A template name cannot contain NUL bytes.');
+ }
+
+ $name = ltrim($name, '/');
+ $parts = explode('/', $name);
+ $level = 0;
+ foreach ($parts as $part) {
+ if ('..' === $part) {
+ --$level;
+ } elseif ('.' !== $part) {
+ ++$level;
+ }
+
+ if ($level < 0) {
+ throw new Twig_Error_Loader(sprintf('Looks like you try to load a template outside configured directories (%s).', $name));
+ }
+ }
+ }
+
+ private function isAbsolutePath($file)
+ {
+ return strspn($file, '/\\', 0, 1)
+ || (strlen($file) > 3 && ctype_alpha($file[0])
+ && substr($file, 1, 1) === ':'
+ && strspn($file, '/\\', 2, 1)
+ )
+ || null !== parse_url($file, PHP_URL_SCHEME)
+ ;
+ }
+}
projects / yaffs-website / blobdiff