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authorNicolas LÅ“uillet <nicolas.loeuillet@gmail.com>2013-08-03 19:26:54 +0200
committerNicolas LÅ“uillet <nicolas.loeuillet@gmail.com>2013-08-03 19:26:54 +0200
commit4f5b44bd3bd490309eb2ba7b44df4769816ba729 (patch)
tree6cefe170dfe0a5a361cb1e2d1fc4d580a3316d02 /inc/3rdparty/Twig/Loader/Filesystem.php
parent2b840e0cfb63a453bea67a98541f3df9c273c5f5 (diff)
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twig implementation
Diffstat (limited to 'inc/3rdparty/Twig/Loader/Filesystem.php')
-rw-r--r--inc/3rdparty/Twig/Loader/Filesystem.php223
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diff --git a/inc/3rdparty/Twig/Loader/Filesystem.php b/inc/3rdparty/Twig/Loader/Filesystem.php
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--- a/inc/3rdparty/Twig/Loader/Filesystem.php
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1<?php
2
3/*
4 * This file is part of Twig.
5 *
6 * (c) 2009 Fabien Potencier
7 *
8 * For the full copyright and license information, please view the LICENSE
9 * file that was distributed with this source code.
10 */
11
12/**
13 * Loads template from the filesystem.
14 *
15 * @author Fabien Potencier <fabien@symfony.com>
16 */
17class Twig_Loader_Filesystem implements Twig_LoaderInterface, Twig_ExistsLoaderInterface
18{
19 protected $paths;
20 protected $cache;
21
22 /**
23 * Constructor.
24 *
25 * @param string|array $paths A path or an array of paths where to look for templates
26 */
27 public function __construct($paths = array())
28 {
29 if ($paths) {
30 $this->setPaths($paths);
31 }
32 }
33
34 /**
35 * Returns the paths to the templates.
36 *
37 * @param string $namespace A path namespace
38 *
39 * @return array The array of paths where to look for templates
40 */
41 public function getPaths($namespace = '__main__')
42 {
43 return isset($this->paths[$namespace]) ? $this->paths[$namespace] : array();
44 }
45
46 /**
47 * Returns the path namespaces.
48 *
49 * The "__main__" namespace is always defined.
50 *
51 * @return array The array of defined namespaces
52 */
53 public function getNamespaces()
54 {
55 return array_keys($this->paths);
56 }
57
58 /**
59 * Sets the paths where templates are stored.
60 *
61 * @param string|array $paths A path or an array of paths where to look for templates
62 * @param string $namespace A path namespace
63 */
64 public function setPaths($paths, $namespace = '__main__')
65 {
66 if (!is_array($paths)) {
67 $paths = array($paths);
68 }
69
70 $this->paths[$namespace] = array();
71 foreach ($paths as $path) {
72 $this->addPath($path, $namespace);
73 }
74 }
75
76 /**
77 * Adds a path where templates are stored.
78 *
79 * @param string $path A path where to look for templates
80 * @param string $namespace A path name
81 *
82 * @throws Twig_Error_Loader
83 */
84 public function addPath($path, $namespace = '__main__')
85 {
86 // invalidate the cache
87 $this->cache = array();
88
89 if (!is_dir($path)) {
90 throw new Twig_Error_Loader(sprintf('The "%s" directory does not exist.', $path));
91 }
92
93 $this->paths[$namespace][] = rtrim($path, '/\\');
94 }
95
96 /**
97 * Prepends a path where templates are stored.
98 *
99 * @param string $path A path where to look for templates
100 * @param string $namespace A path name
101 *
102 * @throws Twig_Error_Loader
103 */
104 public function prependPath($path, $namespace = '__main__')
105 {
106 // invalidate the cache
107 $this->cache = array();
108
109 if (!is_dir($path)) {
110 throw new Twig_Error_Loader(sprintf('The "%s" directory does not exist.', $path));
111 }
112
113 $path = rtrim($path, '/\\');
114
115 if (!isset($this->paths[$namespace])) {
116 $this->paths[$namespace][] = $path;
117 } else {
118 array_unshift($this->paths[$namespace], $path);
119 }
120 }
121
122 /**
123 * {@inheritdoc}
124 */
125 public function getSource($name)
126 {
127 return file_get_contents($this->findTemplate($name));
128 }
129
130 /**
131 * {@inheritdoc}
132 */
133 public function getCacheKey($name)
134 {
135 return $this->findTemplate($name);
136 }
137
138 /**
139 * {@inheritdoc}
140 */
141 public function exists($name)
142 {
143 $name = (string) $name;
144 if (isset($this->cache[$name])) {
145 return true;
146 }
147
148 try {
149 $this->findTemplate($name);
150
151 return true;
152 } catch (Twig_Error_Loader $exception) {
153 return false;
154 }
155 }
156
157 /**
158 * {@inheritdoc}
159 */
160 public function isFresh($name, $time)
161 {
162 return filemtime($this->findTemplate($name)) <= $time;
163 }
164
165 protected function findTemplate($name)
166 {
167 $name = (string) $name;
168
169 // normalize name
170 $name = preg_replace('#/{2,}#', '/', strtr($name, '\\', '/'));
171
172 if (isset($this->cache[$name])) {
173 return $this->cache[$name];
174 }
175
176 $this->validateName($name);
177
178 $namespace = '__main__';
179 if (isset($name[0]) && '@' == $name[0]) {
180 if (false === $pos = strpos($name, '/')) {
181 throw new Twig_Error_Loader(sprintf('Malformed namespaced template name "%s" (expecting "@namespace/template_name").', $name));
182 }
183
184 $namespace = substr($name, 1, $pos - 1);
185
186 $name = substr($name, $pos + 1);
187 }
188
189 if (!isset($this->paths[$namespace])) {
190 throw new Twig_Error_Loader(sprintf('There are no registered paths for namespace "%s".', $namespace));
191 }
192
193 foreach ($this->paths[$namespace] as $path) {
194 if (is_file($path.'/'.$name)) {
195 return $this->cache[$name] = $path.'/'.$name;
196 }
197 }
198
199 throw new Twig_Error_Loader(sprintf('Unable to find template "%s" (looked into: %s).', $name, implode(', ', $this->paths[$namespace])));
200 }
201
202 protected function validateName($name)
203 {
204 if (false !== strpos($name, "\0")) {
205 throw new Twig_Error_Loader('A template name cannot contain NUL bytes.');
206 }
207
208 $name = ltrim($name, '/');
209 $parts = explode('/', $name);
210 $level = 0;
211 foreach ($parts as $part) {
212 if ('..' === $part) {
213 --$level;
214 } elseif ('.' !== $part) {
215 ++$level;
216 }
217
218 if ($level < 0) {
219 throw new Twig_Error_Loader(sprintf('Looks like you try to load a template outside configured directories (%s).', $name));
220 }
221 }
222 }
223}