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115 office 1 <?php
2 /*
3 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
4 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
5 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
6 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
7 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
8 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
9 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
10 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
11 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
12 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
13 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
14 *
15 * This software consists of voluntary contributions made by many individuals
16 * and is licensed under the MIT license. For more information, see
17 * <http://www.doctrine-project.org>.
18 */
19  
20 namespace Doctrine\Common\Cache;
21  
22 /**
23 * Filesystem cache driver.
24 *
25 * @since 2.3
26 * @author Fabio B. Silva <fabio.bat.silva@gmail.com>
27 */
28 class FilesystemCache extends FileCache
29 {
30 const EXTENSION = '.doctrinecache.data';
31  
32 /**
33 * {@inheritdoc}
34 */
35 public function __construct($directory, $extension = self::EXTENSION, $umask = 0002)
36 {
37 parent::__construct($directory, $extension, $umask);
38 }
39  
40 /**
41 * {@inheritdoc}
42 */
43 protected function doFetch($id)
44 {
45 $data = '';
46 $lifetime = -1;
47 $filename = $this->getFilename($id);
48  
49 if ( ! is_file($filename)) {
50 return false;
51 }
52  
53 $resource = fopen($filename, "r");
54  
55 if (false !== ($line = fgets($resource))) {
56 $lifetime = (int) $line;
57 }
58  
59 if ($lifetime !== 0 && $lifetime < time()) {
60 fclose($resource);
61  
62 return false;
63 }
64  
65 while (false !== ($line = fgets($resource))) {
66 $data .= $line;
67 }
68  
69 fclose($resource);
70  
71 return unserialize($data);
72 }
73  
74 /**
75 * {@inheritdoc}
76 */
77 protected function doContains($id)
78 {
79 $lifetime = -1;
80 $filename = $this->getFilename($id);
81  
82 if ( ! is_file($filename)) {
83 return false;
84 }
85  
86 $resource = fopen($filename, "r");
87  
88 if (false !== ($line = fgets($resource))) {
89 $lifetime = (int) $line;
90 }
91  
92 fclose($resource);
93  
94 return $lifetime === 0 || $lifetime > time();
95 }
96  
97 /**
98 * {@inheritdoc}
99 */
100 protected function doSave($id, $data, $lifeTime = 0)
101 {
102 if ($lifeTime > 0) {
103 $lifeTime = time() + $lifeTime;
104 }
105  
106 $data = serialize($data);
107 $filename = $this->getFilename($id);
108  
109 return $this->writeFile($filename, $lifeTime . PHP_EOL . $data);
110 }
111 }