diff options
Diffstat (limited to 'inc/3rdparty/libraries/Zend/Cache/Backend')
3 files changed, 1260 insertions, 0 deletions
diff --git a/inc/3rdparty/libraries/Zend/Cache/Backend/ExtendedInterface.php b/inc/3rdparty/libraries/Zend/Cache/Backend/ExtendedInterface.php new file mode 100644 index 00000000..c192baaf --- /dev/null +++ b/inc/3rdparty/libraries/Zend/Cache/Backend/ExtendedInterface.php | |||
@@ -0,0 +1,127 @@ | |||
1 | <?php | ||
2 | /** | ||
3 | * Zend Framework | ||
4 | * | ||
5 | * LICENSE | ||
6 | * | ||
7 | * This source file is subject to the new BSD license that is bundled | ||
8 | * with this package in the file LICENSE.txt. | ||
9 | * It is also available through the world-wide-web at this URL: | ||
10 | * http://framework.zend.com/license/new-bsd | ||
11 | * If you did not receive a copy of the license and are unable to | ||
12 | * obtain it through the world-wide-web, please send an email | ||
13 | * to license@zend.com so we can send you a copy immediately. | ||
14 | * | ||
15 | * @category Zend | ||
16 | * @package Zend_Cache | ||
17 | * @subpackage Zend_Cache_Backend | ||
18 | * @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com) | ||
19 | * @license http://framework.zend.com/license/new-bsd New BSD License | ||
20 | * @version $Id: ExtendedInterface.php 24593 2012-01-05 20:35:02Z matthew $ | ||
21 | */ | ||
22 | |||
23 | /** | ||
24 | * @see Zend_Cache_Backend_Interface | ||
25 | */ | ||
26 | //require_once 'Zend/Cache/Backend/Interface.php'; | ||
27 | require_once dirname(__FILE__).'/Interface.php'; | ||
28 | |||
29 | /** | ||
30 | * @package Zend_Cache | ||
31 | * @subpackage Zend_Cache_Backend | ||
32 | * @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com) | ||
33 | * @license http://framework.zend.com/license/new-bsd New BSD License | ||
34 | */ | ||
35 | interface Zend_Cache_Backend_ExtendedInterface extends Zend_Cache_Backend_Interface | ||
36 | { | ||
37 | |||
38 | /** | ||
39 | * Return an array of stored cache ids | ||
40 | * | ||
41 | * @return array array of stored cache ids (string) | ||
42 | */ | ||
43 | public function getIds(); | ||
44 | |||
45 | /** | ||
46 | * Return an array of stored tags | ||
47 | * | ||
48 | * @return array array of stored tags (string) | ||
49 | */ | ||
50 | public function getTags(); | ||
51 | |||
52 | /** | ||
53 | * Return an array of stored cache ids which match given tags | ||
54 | * | ||
55 | * In case of multiple tags, a logical AND is made between tags | ||
56 | * | ||
57 | * @param array $tags array of tags | ||
58 | * @return array array of matching cache ids (string) | ||
59 | */ | ||
60 | public function getIdsMatchingTags($tags = array()); | ||
61 | |||
62 | /** | ||
63 | * Return an array of stored cache ids which don't match given tags | ||
64 | * | ||
65 | * In case of multiple tags, a logical OR is made between tags | ||
66 | * | ||
67 | * @param array $tags array of tags | ||
68 | * @return array array of not matching cache ids (string) | ||
69 | */ | ||
70 | public function getIdsNotMatchingTags($tags = array()); | ||
71 | |||
72 | /** | ||
73 | * Return an array of stored cache ids which match any given tags | ||
74 | * | ||
75 | * In case of multiple tags, a logical AND is made between tags | ||
76 | * | ||
77 | * @param array $tags array of tags | ||
78 | * @return array array of any matching cache ids (string) | ||
79 | */ | ||
80 | public function getIdsMatchingAnyTags($tags = array()); | ||
81 | |||
82 | /** | ||
83 | * Return the filling percentage of the backend storage | ||
84 | * | ||
85 | * @return int integer between 0 and 100 | ||
86 | */ | ||
87 | public function getFillingPercentage(); | ||
88 | |||
89 | /** | ||
90 | * Return an array of metadatas for the given cache id | ||
91 | * | ||
92 | * The array must include these keys : | ||
93 | * - expire : the expire timestamp | ||
94 | * - tags : a string array of tags | ||
95 | * - mtime : timestamp of last modification time | ||
96 | * | ||
97 | * @param string $id cache id | ||
98 | * @return array array of metadatas (false if the cache id is not found) | ||
99 | */ | ||
100 | public function getMetadatas($id); | ||
101 | |||
102 | /** | ||
103 | * Give (if possible) an extra lifetime to the given cache id | ||
104 | * | ||
105 | * @param string $id cache id | ||
106 | * @param int $extraLifetime | ||
107 | * @return boolean true if ok | ||
108 | */ | ||
109 | public function touch($id, $extraLifetime); | ||
110 | |||
111 | /** | ||
112 | * Return an associative array of capabilities (booleans) of the backend | ||
113 | * | ||
114 | * The array must include these keys : | ||
115 | * - automatic_cleaning (is automating cleaning necessary) | ||
116 | * - tags (are tags supported) | ||
117 | * - expired_read (is it possible to read expired cache records | ||
118 | * (for doNotTestCacheValidity option for example)) | ||
119 | * - priority does the backend deal with priority when saving | ||
120 | * - infinite_lifetime (is infinite lifetime can work with this backend) | ||
121 | * - get_list (is it possible to get the list of cache ids and the complete list of tags) | ||
122 | * | ||
123 | * @return array associative of with capabilities | ||
124 | */ | ||
125 | public function getCapabilities(); | ||
126 | |||
127 | } | ||
diff --git a/inc/3rdparty/libraries/Zend/Cache/Backend/File.php b/inc/3rdparty/libraries/Zend/Cache/Backend/File.php new file mode 100644 index 00000000..5affbcb3 --- /dev/null +++ b/inc/3rdparty/libraries/Zend/Cache/Backend/File.php | |||
@@ -0,0 +1,1034 @@ | |||
1 | <?php | ||
2 | /** | ||
3 | * Zend Framework | ||
4 | * | ||
5 | * LICENSE | ||
6 | * | ||
7 | * This source file is subject to the new BSD license that is bundled | ||
8 | * with this package in the file LICENSE.txt. | ||
9 | * It is also available through the world-wide-web at this URL: | ||
10 | * http://framework.zend.com/license/new-bsd | ||
11 | * If you did not receive a copy of the license and are unable to | ||
12 | * obtain it through the world-wide-web, please send an email | ||
13 | * to license@zend.com so we can send you a copy immediately. | ||
14 | * | ||
15 | * @category Zend | ||
16 | * @package Zend_Cache | ||
17 | * @subpackage Zend_Cache_Backend | ||
18 | * @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com) | ||
19 | * @license http://framework.zend.com/license/new-bsd New BSD License | ||
20 | * @version $Id: File.php 24844 2012-05-31 19:01:36Z rob $ | ||
21 | */ | ||
22 | |||
23 | /** | ||
24 | * @see Zend_Cache_Backend_Interface | ||
25 | */ | ||
26 | //require_once 'Zend/Cache/Backend/ExtendedInterface.php'; | ||
27 | require_once dirname(__FILE__).'/ExtendedInterface.php'; | ||
28 | |||
29 | /** | ||
30 | * @see Zend_Cache_Backend | ||
31 | */ | ||
32 | //require_once 'Zend/Cache/Backend.php'; | ||
33 | require_once realpath(dirname(__FILE__).'/..').DIRECTORY_SEPARATOR.'Backend.php'; | ||
34 | |||
35 | |||
36 | |||
37 | /** | ||
38 | * @package Zend_Cache | ||
39 | * @subpackage Zend_Cache_Backend | ||
40 | * @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com) | ||
41 | * @license http://framework.zend.com/license/new-bsd New BSD License | ||
42 | */ | ||
43 | class Zend_Cache_Backend_File extends Zend_Cache_Backend implements Zend_Cache_Backend_ExtendedInterface | ||
44 | { | ||
45 | /** | ||
46 | * Available options | ||
47 | * | ||
48 | * =====> (string) cache_dir : | ||
49 | * - Directory where to put the cache files | ||
50 | * | ||
51 | * =====> (boolean) file_locking : | ||
52 | * - Enable / disable file_locking | ||
53 | * - Can avoid cache corruption under bad circumstances but it doesn't work on multithread | ||
54 | * webservers and on NFS filesystems for example | ||
55 | * | ||
56 | * =====> (boolean) read_control : | ||
57 | * - Enable / disable read control | ||
58 | * - If enabled, a control key is embeded in cache file and this key is compared with the one | ||
59 | * calculated after the reading. | ||
60 | * | ||
61 | * =====> (string) read_control_type : | ||
62 | * - Type of read control (only if read control is enabled). Available values are : | ||
63 | * 'md5' for a md5 hash control (best but slowest) | ||
64 | * 'crc32' for a crc32 hash control (lightly less safe but faster, better choice) | ||
65 | * 'adler32' for an adler32 hash control (excellent choice too, faster than crc32) | ||
66 | * 'strlen' for a length only test (fastest) | ||
67 | * | ||
68 | * =====> (int) hashed_directory_level : | ||
69 | * - Hashed directory level | ||
70 | * - Set the hashed directory structure level. 0 means "no hashed directory | ||
71 | * structure", 1 means "one level of directory", 2 means "two levels"... | ||
72 | * This option can speed up the cache only when you have many thousands of | ||
73 | * cache file. Only specific benchs can help you to choose the perfect value | ||
74 | * for you. Maybe, 1 or 2 is a good start. | ||
75 | * | ||
76 | * =====> (int) hashed_directory_umask : | ||
77 | * - deprecated | ||
78 | * - Permissions for hashed directory structure | ||
79 | * | ||
80 | * =====> (int) hashed_directory_perm : | ||
81 | * - Permissions for hashed directory structure | ||
82 | * | ||
83 | * =====> (string) file_name_prefix : | ||
84 | * - prefix for cache files | ||
85 | * - be really carefull with this option because a too generic value in a system cache dir | ||
86 | * (like /tmp) can cause disasters when cleaning the cache | ||
87 | * | ||
88 | * =====> (int) cache_file_umask : | ||
89 | * - deprecated | ||
90 | * - Permissions for cache files | ||
91 | * | ||
92 | * =====> (int) cache_file_perm : | ||
93 | * - Permissions for cache files | ||
94 | * | ||
95 | * =====> (int) metatadatas_array_max_size : | ||
96 | * - max size for the metadatas array (don't change this value unless you | ||
97 | * know what you are doing) | ||
98 | * | ||
99 | * @var array available options | ||
100 | */ | ||
101 | protected $_options = array( | ||
102 | 'cache_dir' => null, | ||
103 | 'file_locking' => true, | ||
104 | 'read_control' => true, | ||
105 | 'read_control_type' => 'crc32', | ||
106 | 'hashed_directory_level' => 0, | ||
107 | 'hashed_directory_perm' => 0700, | ||
108 | 'file_name_prefix' => 'zend_cache', | ||
109 | 'cache_file_perm' => 0600, | ||
110 | 'metadatas_array_max_size' => 100 | ||
111 | ); | ||
112 | |||
113 | /** | ||
114 | * Array of metadatas (each item is an associative array) | ||
115 | * | ||
116 | * @var array | ||
117 | */ | ||
118 | protected $_metadatasArray = array(); | ||
119 | |||
120 | |||
121 | /** | ||
122 | * Constructor | ||
123 | * | ||
124 | * @param array $options associative array of options | ||
125 | * @throws Zend_Cache_Exception | ||
126 | * @return void | ||
127 | */ | ||
128 | public function __construct(array $options = array()) | ||
129 | { | ||
130 | parent::__construct($options); | ||
131 | if ($this->_options['cache_dir'] !== null) { // particular case for this option | ||
132 | $this->setCacheDir($this->_options['cache_dir']); | ||
133 | } else { | ||
134 | $this->setCacheDir(self::getTmpDir() . DIRECTORY_SEPARATOR, false); | ||
135 | } | ||
136 | if (isset($this->_options['file_name_prefix'])) { // particular case for this option | ||
137 | if (!preg_match('~^[a-zA-Z0-9_]+$~D', $this->_options['file_name_prefix'])) { | ||
138 | Zend_Cache::throwException('Invalid file_name_prefix : must use only [a-zA-Z0-9_]'); | ||
139 | } | ||
140 | } | ||
141 | if ($this->_options['metadatas_array_max_size'] < 10) { | ||
142 | Zend_Cache::throwException('Invalid metadatas_array_max_size, must be > 10'); | ||
143 | } | ||
144 | |||
145 | if (isset($options['hashed_directory_umask'])) { | ||
146 | // See #ZF-12047 | ||
147 | trigger_error("'hashed_directory_umask' is deprecated -> please use 'hashed_directory_perm' instead", E_USER_NOTICE); | ||
148 | if (!isset($options['hashed_directory_perm'])) { | ||
149 | $options['hashed_directory_perm'] = $options['hashed_directory_umask']; | ||
150 | } | ||
151 | } | ||
152 | if (isset($options['hashed_directory_perm']) && is_string($options['hashed_directory_perm'])) { | ||
153 | // See #ZF-4422 | ||
154 | $this->_options['hashed_directory_perm'] = octdec($this->_options['hashed_directory_perm']); | ||
155 | } | ||
156 | |||
157 | if (isset($options['cache_file_umask'])) { | ||
158 | // See #ZF-12047 | ||
159 | trigger_error("'cache_file_umask' is deprecated -> please use 'cache_file_perm' instead", E_USER_NOTICE); | ||
160 | if (!isset($options['cache_file_perm'])) { | ||
161 | $options['cache_file_perm'] = $options['cache_file_umask']; | ||
162 | } | ||
163 | } | ||
164 | if (isset($options['cache_file_perm']) && is_string($options['cache_file_perm'])) { | ||
165 | // See #ZF-4422 | ||
166 | $this->_options['cache_file_perm'] = octdec($this->_options['cache_file_perm']); | ||
167 | } | ||
168 | } | ||
169 | |||
170 | /** | ||
171 | * Set the cache_dir (particular case of setOption() method) | ||
172 | * | ||
173 | * @param string $value | ||
174 | * @param boolean $trailingSeparator If true, add a trailing separator is necessary | ||
175 | * @throws Zend_Cache_Exception | ||
176 | * @return void | ||
177 | */ | ||
178 | public function setCacheDir($value, $trailingSeparator = true) | ||
179 | { | ||
180 | if (!is_dir($value)) { | ||
181 | Zend_Cache::throwException(sprintf('cache_dir "%s" must be a directory', $value)); | ||
182 | } | ||
183 | if (!is_writable($value)) { | ||
184 | Zend_Cache::throwException(sprintf('cache_dir "%s" is not writable', $value)); | ||
185 | } | ||
186 | if ($trailingSeparator) { | ||
187 | // add a trailing DIRECTORY_SEPARATOR if necessary | ||
188 | $value = rtrim(realpath($value), '\\/') . DIRECTORY_SEPARATOR; | ||
189 | } | ||
190 | $this->_options['cache_dir'] = $value; | ||
191 | } | ||
192 | |||
193 | /** | ||
194 | * Test if a cache is available for the given id and (if yes) return it (false else) | ||
195 | * | ||
196 | * @param string $id cache id | ||
197 | * @param boolean $doNotTestCacheValidity if set to true, the cache validity won't be tested | ||
198 | * @return string|false cached datas | ||
199 | */ | ||
200 | public function load($id, $doNotTestCacheValidity = false) | ||
201 | { | ||
202 | if (!($this->_test($id, $doNotTestCacheValidity))) { | ||
203 | // The cache is not hit ! | ||
204 | return false; | ||
205 | } | ||
206 | $metadatas = $this->_getMetadatas($id); | ||
207 | $file = $this->_file($id); | ||
208 | $data = $this->_fileGetContents($file); | ||
209 | if ($this->_options['read_control']) { | ||
210 | $hashData = $this->_hash($data, $this->_options['read_control_type']); | ||
211 | $hashControl = $metadatas['hash']; | ||
212 | if ($hashData != $hashControl) { | ||
213 | // Problem detected by the read control ! | ||
214 | $this->_log('Zend_Cache_Backend_File::load() / read_control : stored hash and computed hash do not match'); | ||
215 | $this->remove($id); | ||
216 | return false; | ||
217 | } | ||
218 | } | ||
219 | return $data; | ||
220 | } | ||
221 | |||
222 | /** | ||
223 | * Test if a cache is available or not (for the given id) | ||
224 | * | ||
225 | * @param string $id cache id | ||
226 | * @return mixed false (a cache is not available) or "last modified" timestamp (int) of the available cache record | ||
227 | */ | ||
228 | public function test($id) | ||
229 | { | ||
230 | clearstatcache(); | ||
231 | return $this->_test($id, false); | ||
232 | } | ||
233 | |||
234 | /** | ||
235 | * Save some string datas into a cache record | ||
236 | * | ||
237 | * Note : $data is always "string" (serialization is done by the | ||
238 | * core not by the backend) | ||
239 | * | ||
240 | * @param string $data Datas to cache | ||
241 | * @param string $id Cache id | ||
242 | * @param array $tags Array of strings, the cache record will be tagged by each string entry | ||
243 | * @param int $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime) | ||
244 | * @return boolean true if no problem | ||
245 | */ | ||
246 | public function save($data, $id, $tags = array(), $specificLifetime = false) | ||
247 | { | ||
248 | clearstatcache(); | ||
249 | $file = $this->_file($id); | ||
250 | $path = $this->_path($id); | ||
251 | if ($this->_options['hashed_directory_level'] > 0) { | ||
252 | if (!is_writable($path)) { | ||
253 | // maybe, we just have to build the directory structure | ||
254 | $this->_recursiveMkdirAndChmod($id); | ||
255 | } | ||
256 | if (!is_writable($path)) { | ||
257 | return false; | ||
258 | } | ||
259 | } | ||
260 | if ($this->_options['read_control']) { | ||
261 | $hash = $this->_hash($data, $this->_options['read_control_type']); | ||
262 | } else { | ||
263 | $hash = ''; | ||
264 | } | ||
265 | $metadatas = array( | ||
266 | 'hash' => $hash, | ||
267 | 'mtime' => time(), | ||
268 | 'expire' => $this->_expireTime($this->getLifetime($specificLifetime)), | ||
269 | 'tags' => $tags | ||
270 | ); | ||
271 | $res = $this->_setMetadatas($id, $metadatas); | ||
272 | if (!$res) { | ||
273 | $this->_log('Zend_Cache_Backend_File::save() / error on saving metadata'); | ||
274 | return false; | ||
275 | } | ||
276 | $res = $this->_filePutContents($file, $data); | ||
277 | return $res; | ||
278 | } | ||
279 | |||
280 | /** | ||
281 | * Remove a cache record | ||
282 | * | ||
283 | * @param string $id cache id | ||
284 | * @return boolean true if no problem | ||
285 | */ | ||
286 | public function remove($id) | ||
287 | { | ||
288 | $file = $this->_file($id); | ||
289 | $boolRemove = $this->_remove($file); | ||
290 | $boolMetadata = $this->_delMetadatas($id); | ||
291 | return $boolMetadata && $boolRemove; | ||
292 | } | ||
293 | |||
294 | /** | ||
295 | * Clean some cache records | ||
296 | * | ||
297 | * Available modes are : | ||
298 | * | ||
299 | * Zend_Cache::CLEANING_MODE_ALL (default) => remove all cache entries ($tags is not used) | ||
300 | * Zend_Cache::CLEANING_MODE_OLD => remove too old cache entries ($tags is not used) | ||
301 | * Zend_Cache::CLEANING_MODE_MATCHING_TAG => remove cache entries matching all given tags | ||
302 | * ($tags can be an array of strings or a single string) | ||
303 | * Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG => remove cache entries not {matching one of the given tags} | ||
304 | * ($tags can be an array of strings or a single string) | ||
305 | * Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG => remove cache entries matching any given tags | ||
306 | * ($tags can be an array of strings or a single string) | ||
307 | * | ||
308 | * @param string $mode clean mode | ||
309 | * @param tags array $tags array of tags | ||
310 | * @return boolean true if no problem | ||
311 | */ | ||
312 | public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array()) | ||
313 | { | ||
314 | // We use this protected method to hide the recursive stuff | ||
315 | clearstatcache(); | ||
316 | return $this->_clean($this->_options['cache_dir'], $mode, $tags); | ||
317 | } | ||
318 | |||
319 | /** | ||
320 | * Return an array of stored cache ids | ||
321 | * | ||
322 | * @return array array of stored cache ids (string) | ||
323 | */ | ||
324 | public function getIds() | ||
325 | { | ||
326 | return $this->_get($this->_options['cache_dir'], 'ids', array()); | ||
327 | } | ||
328 | |||
329 | /** | ||
330 | * Return an array of stored tags | ||
331 | * | ||
332 | * @return array array of stored tags (string) | ||
333 | */ | ||
334 | public function getTags() | ||
335 | { | ||
336 | return $this->_get($this->_options['cache_dir'], 'tags', array()); | ||
337 | } | ||
338 | |||
339 | /** | ||
340 | * Return an array of stored cache ids which match given tags | ||
341 | * | ||
342 | * In case of multiple tags, a logical AND is made between tags | ||
343 | * | ||
344 | * @param array $tags array of tags | ||
345 | * @return array array of matching cache ids (string) | ||
346 | */ | ||
347 | public function getIdsMatchingTags($tags = array()) | ||
348 | { | ||
349 | return $this->_get($this->_options['cache_dir'], 'matching', $tags); | ||
350 | } | ||
351 | |||
352 | /** | ||
353 | * Return an array of stored cache ids which don't match given tags | ||
354 | * | ||
355 | * In case of multiple tags, a logical OR is made between tags | ||
356 | * | ||
357 | * @param array $tags array of tags | ||
358 | * @return array array of not matching cache ids (string) | ||
359 | */ | ||
360 | public function getIdsNotMatchingTags($tags = array()) | ||
361 | { | ||
362 | return $this->_get($this->_options['cache_dir'], 'notMatching', $tags); | ||
363 | } | ||
364 | |||
365 | /** | ||
366 | * Return an array of stored cache ids which match any given tags | ||
367 | * | ||
368 | * In case of multiple tags, a logical AND is made between tags | ||
369 | * | ||
370 | * @param array $tags array of tags | ||
371 | * @return array array of any matching cache ids (string) | ||
372 | */ | ||
373 | public function getIdsMatchingAnyTags($tags = array()) | ||
374 | { | ||
375 | return $this->_get($this->_options['cache_dir'], 'matchingAny', $tags); | ||
376 | } | ||
377 | |||
378 | /** | ||
379 | * Return the filling percentage of the backend storage | ||
380 | * | ||
381 | * @throws Zend_Cache_Exception | ||
382 | * @return int integer between 0 and 100 | ||
383 | */ | ||
384 | public function getFillingPercentage() | ||
385 | { | ||
386 | $free = disk_free_space($this->_options['cache_dir']); | ||
387 | $total = disk_total_space($this->_options['cache_dir']); | ||
388 | if ($total == 0) { | ||
389 | Zend_Cache::throwException('can\'t get disk_total_space'); | ||
390 | } else { | ||
391 | if ($free >= $total) { | ||
392 | return 100; | ||
393 | } | ||
394 | return ((int) (100. * ($total - $free) / $total)); | ||
395 | } | ||
396 | } | ||
397 | |||
398 | /** | ||
399 | * Return an array of metadatas for the given cache id | ||
400 | * | ||
401 | * The array must include these keys : | ||
402 | * - expire : the expire timestamp | ||
403 | * - tags : a string array of tags | ||
404 | * - mtime : timestamp of last modification time | ||
405 | * | ||
406 | * @param string $id cache id | ||
407 | * @return array array of metadatas (false if the cache id is not found) | ||
408 | */ | ||
409 | public function getMetadatas($id) | ||
410 | { | ||
411 | $metadatas = $this->_getMetadatas($id); | ||
412 | if (!$metadatas) { | ||
413 | return false; | ||
414 | } | ||
415 | if (time() > $metadatas['expire']) { | ||
416 | return false; | ||
417 | } | ||
418 | return array( | ||
419 | 'expire' => $metadatas['expire'], | ||
420 | 'tags' => $metadatas['tags'], | ||
421 | 'mtime' => $metadatas['mtime'] | ||
422 | ); | ||
423 | } | ||
424 | |||
425 | /** | ||
426 | * Give (if possible) an extra lifetime to the given cache id | ||
427 | * | ||
428 | * @param string $id cache id | ||
429 | * @param int $extraLifetime | ||
430 | * @return boolean true if ok | ||
431 | */ | ||
432 | public function touch($id, $extraLifetime) | ||
433 | { | ||
434 | $metadatas = $this->_getMetadatas($id); | ||
435 | if (!$metadatas) { | ||
436 | return false; | ||
437 | } | ||
438 | if (time() > $metadatas['expire']) { | ||
439 | return false; | ||
440 | } | ||
441 | $newMetadatas = array( | ||
442 | 'hash' => $metadatas['hash'], | ||
443 | 'mtime' => time(), | ||
444 | 'expire' => $metadatas['expire'] + $extraLifetime, | ||
445 | 'tags' => $metadatas['tags'] | ||
446 | ); | ||
447 | $res = $this->_setMetadatas($id, $newMetadatas); | ||
448 | if (!$res) { | ||
449 | return false; | ||
450 | } | ||
451 | return true; | ||
452 | } | ||
453 | |||
454 | /** | ||
455 | * Return an associative array of capabilities (booleans) of the backend | ||
456 | * | ||
457 | * The array must include these keys : | ||
458 | * - automatic_cleaning (is automating cleaning necessary) | ||
459 | * - tags (are tags supported) | ||
460 | * - expired_read (is it possible to read expired cache records | ||
461 | * (for doNotTestCacheValidity option for example)) | ||
462 | * - priority does the backend deal with priority when saving | ||
463 | * - infinite_lifetime (is infinite lifetime can work with this backend) | ||
464 | * - get_list (is it possible to get the list of cache ids and the complete list of tags) | ||
465 | * | ||
466 | * @return array associative of with capabilities | ||
467 | */ | ||
468 | public function getCapabilities() | ||
469 | { | ||
470 | return array( | ||
471 | 'automatic_cleaning' => true, | ||
472 | 'tags' => true, | ||
473 | 'expired_read' => true, | ||
474 | 'priority' => false, | ||
475 | 'infinite_lifetime' => true, | ||
476 | 'get_list' => true | ||
477 | ); | ||
478 | } | ||
479 | |||
480 | /** | ||
481 | * PUBLIC METHOD FOR UNIT TESTING ONLY ! | ||
482 | * | ||
483 | * Force a cache record to expire | ||
484 | * | ||
485 | * @param string $id cache id | ||
486 | */ | ||
487 | public function ___expire($id) | ||
488 | { | ||
489 | $metadatas = $this->_getMetadatas($id); | ||
490 | if ($metadatas) { | ||
491 | $metadatas['expire'] = 1; | ||
492 | $this->_setMetadatas($id, $metadatas); | ||
493 | } | ||
494 | } | ||
495 | |||
496 | /** | ||
497 | * Get a metadatas record | ||
498 | * | ||
499 | * @param string $id Cache id | ||
500 | * @return array|false Associative array of metadatas | ||
501 | */ | ||
502 | protected function _getMetadatas($id) | ||
503 | { | ||
504 | if (isset($this->_metadatasArray[$id])) { | ||
505 | return $this->_metadatasArray[$id]; | ||
506 | } else { | ||
507 | $metadatas = $this->_loadMetadatas($id); | ||
508 | if (!$metadatas) { | ||
509 | return false; | ||
510 | } | ||
511 | $this->_setMetadatas($id, $metadatas, false); | ||
512 | return $metadatas; | ||
513 | } | ||
514 | } | ||
515 | |||
516 | /** | ||
517 | * Set a metadatas record | ||
518 | * | ||
519 | * @param string $id Cache id | ||
520 | * @param array $metadatas Associative array of metadatas | ||
521 | * @param boolean $save optional pass false to disable saving to file | ||
522 | * @return boolean True if no problem | ||
523 | */ | ||
524 | protected function _setMetadatas($id, $metadatas, $save = true) | ||
525 | { | ||
526 | if (count($this->_metadatasArray) >= $this->_options['metadatas_array_max_size']) { | ||
527 | $n = (int) ($this->_options['metadatas_array_max_size'] / 10); | ||
528 | $this->_metadatasArray = array_slice($this->_metadatasArray, $n); | ||
529 | } | ||
530 | if ($save) { | ||
531 | $result = $this->_saveMetadatas($id, $metadatas); | ||
532 | if (!$result) { | ||
533 | return false; | ||
534 | } | ||
535 | } | ||
536 | $this->_metadatasArray[$id] = $metadatas; | ||
537 | return true; | ||
538 | } | ||
539 | |||
540 | /** | ||
541 | * Drop a metadata record | ||
542 | * | ||
543 | * @param string $id Cache id | ||
544 | * @return boolean True if no problem | ||
545 | */ | ||
546 | protected function _delMetadatas($id) | ||
547 | { | ||
548 | if (isset($this->_metadatasArray[$id])) { | ||
549 | unset($this->_metadatasArray[$id]); | ||
550 | } | ||
551 | $file = $this->_metadatasFile($id); | ||
552 | return $this->_remove($file); | ||
553 | } | ||
554 | |||
555 | /** | ||
556 | * Clear the metadatas array | ||
557 | * | ||
558 | * @return void | ||
559 | */ | ||
560 | protected function _cleanMetadatas() | ||
561 | { | ||
562 | $this->_metadatasArray = array(); | ||
563 | } | ||
564 | |||
565 | /** | ||
566 | * Load metadatas from disk | ||
567 | * | ||
568 | * @param string $id Cache id | ||
569 | * @return array|false Metadatas associative array | ||
570 | */ | ||
571 | protected function _loadMetadatas($id) | ||
572 | { | ||
573 | $file = $this->_metadatasFile($id); | ||
574 | $result = $this->_fileGetContents($file); | ||
575 | if (!$result) { | ||
576 | return false; | ||
577 | } | ||
578 | $tmp = @unserialize($result); | ||
579 | return $tmp; | ||
580 | } | ||
581 | |||
582 | /** | ||
583 | * Save metadatas to disk | ||
584 | * | ||
585 | * @param string $id Cache id | ||
586 | * @param array $metadatas Associative array | ||
587 | * @return boolean True if no problem | ||
588 | */ | ||
589 | protected function _saveMetadatas($id, $metadatas) | ||
590 | { | ||
591 | $file = $this->_metadatasFile($id); | ||
592 | $result = $this->_filePutContents($file, serialize($metadatas)); | ||
593 | if (!$result) { | ||
594 | return false; | ||
595 | } | ||
596 | return true; | ||
597 | } | ||
598 | |||
599 | /** | ||
600 | * Make and return a file name (with path) for metadatas | ||
601 | * | ||
602 | * @param string $id Cache id | ||
603 | * @return string Metadatas file name (with path) | ||
604 | */ | ||
605 | protected function _metadatasFile($id) | ||
606 | { | ||
607 | $path = $this->_path($id); | ||
608 | $fileName = $this->_idToFileName('internal-metadatas---' . $id); | ||
609 | return $path . $fileName; | ||
610 | } | ||
611 | |||
612 | /** | ||
613 | * Check if the given filename is a metadatas one | ||
614 | * | ||
615 | * @param string $fileName File name | ||
616 | * @return boolean True if it's a metadatas one | ||
617 | */ | ||
618 | protected function _isMetadatasFile($fileName) | ||
619 | { | ||
620 | $id = $this->_fileNameToId($fileName); | ||
621 | if (substr($id, 0, 21) == 'internal-metadatas---') { | ||
622 | return true; | ||
623 | } else { | ||
624 | return false; | ||
625 | } | ||
626 | } | ||
627 | |||
628 | /** | ||
629 | * Remove a file | ||
630 | * | ||
631 | * If we can't remove the file (because of locks or any problem), we will touch | ||
632 | * the file to invalidate it | ||
633 | * | ||
634 | * @param string $file Complete file path | ||
635 | * @return boolean True if ok | ||
636 | */ | ||
637 | protected function _remove($file) | ||
638 | { | ||
639 | if (!is_file($file)) { | ||
640 | return false; | ||
641 | } | ||
642 | if (!@unlink($file)) { | ||
643 | # we can't remove the file (because of locks or any problem) | ||
644 | $this->_log("Zend_Cache_Backend_File::_remove() : we can't remove $file"); | ||
645 | return false; | ||
646 | } | ||
647 | return true; | ||
648 | } | ||
649 | |||
650 | /** | ||
651 | * Clean some cache records (protected method used for recursive stuff) | ||
652 | * | ||
653 | * Available modes are : | ||
654 | * Zend_Cache::CLEANING_MODE_ALL (default) => remove all cache entries ($tags is not used) | ||
655 | * Zend_Cache::CLEANING_MODE_OLD => remove too old cache entries ($tags is not used) | ||
656 | * Zend_Cache::CLEANING_MODE_MATCHING_TAG => remove cache entries matching all given tags | ||
657 | * ($tags can be an array of strings or a single string) | ||
658 | * Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG => remove cache entries not {matching one of the given tags} | ||
659 | * ($tags can be an array of strings or a single string) | ||
660 | * Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG => remove cache entries matching any given tags | ||
661 | * ($tags can be an array of strings or a single string) | ||
662 | * | ||
663 | * @param string $dir Directory to clean | ||
664 | * @param string $mode Clean mode | ||
665 | * @param array $tags Array of tags | ||
666 | * @throws Zend_Cache_Exception | ||
667 | * @return boolean True if no problem | ||
668 | */ | ||
669 | protected function _clean($dir, $mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array()) | ||
670 | { | ||
671 | if (!is_dir($dir)) { | ||
672 | return false; | ||
673 | } | ||
674 | $result = true; | ||
675 | $prefix = $this->_options['file_name_prefix']; | ||
676 | $glob = @glob($dir . $prefix . '--*'); | ||
677 | if ($glob === false) { | ||
678 | // On some systems it is impossible to distinguish between empty match and an error. | ||
679 | return true; | ||
680 | } | ||
681 | foreach ($glob as $file) { | ||
682 | if (is_file($file)) { | ||
683 | $fileName = basename($file); | ||
684 | if ($this->_isMetadatasFile($fileName)) { | ||
685 | // in CLEANING_MODE_ALL, we drop anything, even remainings old metadatas files | ||
686 | if ($mode != Zend_Cache::CLEANING_MODE_ALL) { | ||
687 | continue; | ||
688 | } | ||
689 | } | ||
690 | $id = $this->_fileNameToId($fileName); | ||
691 | $metadatas = $this->_getMetadatas($id); | ||
692 | if ($metadatas === FALSE) { | ||
693 | $metadatas = array('expire' => 1, 'tags' => array()); | ||
694 | } | ||
695 | switch ($mode) { | ||
696 | case Zend_Cache::CLEANING_MODE_ALL: | ||
697 | $res = $this->remove($id); | ||
698 | if (!$res) { | ||
699 | // in this case only, we accept a problem with the metadatas file drop | ||
700 | $res = $this->_remove($file); | ||
701 | } | ||
702 | $result = $result && $res; | ||
703 | break; | ||
704 | case Zend_Cache::CLEANING_MODE_OLD: | ||
705 | if (time() > $metadatas['expire']) { | ||
706 | $result = $this->remove($id) && $result; | ||
707 | } | ||
708 | break; | ||
709 | case Zend_Cache::CLEANING_MODE_MATCHING_TAG: | ||
710 | $matching = true; | ||
711 | foreach ($tags as $tag) { | ||
712 | if (!in_array($tag, $metadatas['tags'])) { | ||
713 | $matching = false; | ||
714 | break; | ||
715 | } | ||
716 | } | ||
717 | if ($matching) { | ||
718 | $result = $this->remove($id) && $result; | ||
719 | } | ||
720 | break; | ||
721 | case Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG: | ||
722 | $matching = false; | ||
723 | foreach ($tags as $tag) { | ||
724 | if (in_array($tag, $metadatas['tags'])) { | ||
725 | $matching = true; | ||
726 | break; | ||
727 | } | ||
728 | } | ||
729 | if (!$matching) { | ||
730 | $result = $this->remove($id) && $result; | ||
731 | } | ||
732 | break; | ||
733 | case Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG: | ||
734 | $matching = false; | ||
735 | foreach ($tags as $tag) { | ||
736 | if (in_array($tag, $metadatas['tags'])) { | ||
737 | $matching = true; | ||
738 | break; | ||
739 | } | ||
740 | } | ||
741 | if ($matching) { | ||
742 | $result = $this->remove($id) && $result; | ||
743 | } | ||
744 | break; | ||
745 | default: | ||
746 | Zend_Cache::throwException('Invalid mode for clean() method'); | ||
747 | break; | ||
748 | } | ||
749 | } | ||
750 | if ((is_dir($file)) and ($this->_options['hashed_directory_level']>0)) { | ||
751 | // Recursive call | ||
752 | $result = $this->_clean($file . DIRECTORY_SEPARATOR, $mode, $tags) && $result; | ||
753 | if ($mode == Zend_Cache::CLEANING_MODE_ALL) { | ||
754 | // we try to drop the structure too | ||
755 | @rmdir($file); | ||
756 | } | ||
757 | } | ||
758 | } | ||
759 | return $result; | ||
760 | } | ||
761 | |||
762 | protected function _get($dir, $mode, $tags = array()) | ||
763 | { | ||
764 | if (!is_dir($dir)) { | ||
765 | return false; | ||
766 | } | ||
767 | $result = array(); | ||
768 | $prefix = $this->_options['file_name_prefix']; | ||
769 | $glob = @glob($dir . $prefix . '--*'); | ||
770 | if ($glob === false) { | ||
771 | // On some systems it is impossible to distinguish between empty match and an error. | ||
772 | return array(); | ||
773 | } | ||
774 | foreach ($glob as $file) { | ||
775 | if (is_file($file)) { | ||
776 | $fileName = basename($file); | ||
777 | $id = $this->_fileNameToId($fileName); | ||
778 | $metadatas = $this->_getMetadatas($id); | ||
779 | if ($metadatas === FALSE) { | ||
780 | continue; | ||
781 | } | ||
782 | if (time() > $metadatas['expire']) { | ||
783 | continue; | ||
784 | } | ||
785 | switch ($mode) { | ||
786 | case 'ids': | ||
787 | $result[] = $id; | ||
788 | break; | ||
789 | case 'tags': | ||
790 | $result = array_unique(array_merge($result, $metadatas['tags'])); | ||
791 | break; | ||
792 | case 'matching': | ||
793 | $matching = true; | ||
794 | foreach ($tags as $tag) { | ||
795 | if (!in_array($tag, $metadatas['tags'])) { | ||
796 | $matching = false; | ||
797 | break; | ||
798 | } | ||
799 | } | ||
800 | if ($matching) { | ||
801 | $result[] = $id; | ||
802 | } | ||
803 | break; | ||
804 | case 'notMatching': | ||
805 | $matching = false; | ||
806 | foreach ($tags as $tag) { | ||
807 | if (in_array($tag, $metadatas['tags'])) { | ||
808 | $matching = true; | ||
809 | break; | ||
810 | } | ||
811 | } | ||
812 | if (!$matching) { | ||
813 | $result[] = $id; | ||
814 | } | ||
815 | break; | ||
816 | case 'matchingAny': | ||
817 | $matching = false; | ||
818 | foreach ($tags as $tag) { | ||
819 | if (in_array($tag, $metadatas['tags'])) { | ||
820 | $matching = true; | ||
821 | break; | ||
822 | } | ||
823 | } | ||
824 | if ($matching) { | ||
825 | $result[] = $id; | ||
826 | } | ||
827 | break; | ||
828 | default: | ||
829 | Zend_Cache::throwException('Invalid mode for _get() method'); | ||
830 | break; | ||
831 | } | ||
832 | } | ||
833 | if ((is_dir($file)) and ($this->_options['hashed_directory_level']>0)) { | ||
834 | // Recursive call | ||
835 | $recursiveRs = $this->_get($file . DIRECTORY_SEPARATOR, $mode, $tags); | ||
836 | if ($recursiveRs === false) { | ||
837 | $this->_log('Zend_Cache_Backend_File::_get() / recursive call : can\'t list entries of "'.$file.'"'); | ||
838 | } else { | ||
839 | $result = array_unique(array_merge($result, $recursiveRs)); | ||
840 | } | ||
841 | } | ||
842 | } | ||
843 | return array_unique($result); | ||
844 | } | ||
845 | |||
846 | /** | ||
847 | * Compute & return the expire time | ||
848 | * | ||
849 | * @return int expire time (unix timestamp) | ||
850 | */ | ||
851 | protected function _expireTime($lifetime) | ||
852 | { | ||
853 | if ($lifetime === null) { | ||
854 | return 9999999999; | ||
855 | } | ||
856 | return time() + $lifetime; | ||
857 | } | ||
858 | |||
859 | /** | ||
860 | * Make a control key with the string containing datas | ||
861 | * | ||
862 | * @param string $data Data | ||
863 | * @param string $controlType Type of control 'md5', 'crc32' or 'strlen' | ||
864 | * @throws Zend_Cache_Exception | ||
865 | * @return string Control key | ||
866 | */ | ||
867 | protected function _hash($data, $controlType) | ||
868 | { | ||
869 | switch ($controlType) { | ||
870 | case 'md5': | ||
871 | return md5($data); | ||
872 | case 'crc32': | ||
873 | return crc32($data); | ||
874 | case 'strlen': | ||
875 | return strlen($data); | ||
876 | case 'adler32': | ||
877 | return hash('adler32', $data); | ||
878 | default: | ||
879 | Zend_Cache::throwException("Incorrect hash function : $controlType"); | ||
880 | } | ||
881 | } | ||
882 | |||
883 | /** | ||
884 | * Transform a cache id into a file name and return it | ||
885 | * | ||
886 | * @param string $id Cache id | ||
887 | * @return string File name | ||
888 | */ | ||
889 | protected function _idToFileName($id) | ||
890 | { | ||
891 | $prefix = $this->_options['file_name_prefix']; | ||
892 | $result = $prefix . '---' . $id; | ||
893 | return $result; | ||
894 | } | ||
895 | |||
896 | /** | ||
897 | * Make and return a file name (with path) | ||
898 | * | ||
899 | * @param string $id Cache id | ||
900 | * @return string File name (with path) | ||
901 | */ | ||
902 | protected function _file($id) | ||
903 | { | ||
904 | $path = $this->_path($id); | ||
905 | $fileName = $this->_idToFileName($id); | ||
906 | return $path . $fileName; | ||
907 | } | ||
908 | |||
909 | /** | ||
910 | * Return the complete directory path of a filename (including hashedDirectoryStructure) | ||
911 | * | ||
912 | * @param string $id Cache id | ||
913 | * @param boolean $parts if true, returns array of directory parts instead of single string | ||
914 | * @return string Complete directory path | ||
915 | */ | ||
916 | protected function _path($id, $parts = false) | ||
917 | { | ||
918 | $partsArray = array(); | ||
919 | $root = $this->_options['cache_dir']; | ||
920 | $prefix = $this->_options['file_name_prefix']; | ||
921 | if ($this->_options['hashed_directory_level']>0) { | ||
922 | $hash = hash('adler32', $id); | ||
923 | for ($i=0 ; $i < $this->_options['hashed_directory_level'] ; $i++) { | ||
924 | $root = $root . $prefix . '--' . substr($hash, 0, $i + 1) . DIRECTORY_SEPARATOR; | ||
925 | $partsArray[] = $root; | ||
926 | } | ||
927 | } | ||
928 | if ($parts) { | ||
929 | return $partsArray; | ||
930 | } else { | ||
931 | return $root; | ||
932 | } | ||
933 | } | ||
934 | |||
935 | /** | ||
936 | * Make the directory strucuture for the given id | ||
937 | * | ||
938 | * @param string $id cache id | ||
939 | * @return boolean true | ||
940 | */ | ||
941 | protected function _recursiveMkdirAndChmod($id) | ||
942 | { | ||
943 | if ($this->_options['hashed_directory_level'] <=0) { | ||
944 | return true; | ||
945 | } | ||
946 | $partsArray = $this->_path($id, true); | ||
947 | foreach ($partsArray as $part) { | ||
948 | if (!is_dir($part)) { | ||
949 | @mkdir($part, $this->_options['hashed_directory_perm']); | ||
950 | @chmod($part, $this->_options['hashed_directory_perm']); // see #ZF-320 (this line is required in some configurations) | ||
951 | } | ||
952 | } | ||
953 | return true; | ||
954 | } | ||
955 | |||
956 | /** | ||
957 | * Test if the given cache id is available (and still valid as a cache record) | ||
958 | * | ||
959 | * @param string $id Cache id | ||
960 | * @param boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested | ||
961 | * @return boolean|mixed false (a cache is not available) or "last modified" timestamp (int) of the available cache record | ||
962 | */ | ||
963 | protected function _test($id, $doNotTestCacheValidity) | ||
964 | { | ||
965 | $metadatas = $this->_getMetadatas($id); | ||
966 | if (!$metadatas) { | ||
967 | return false; | ||
968 | } | ||
969 | if ($doNotTestCacheValidity || (time() <= $metadatas['expire'])) { | ||
970 | return $metadatas['mtime']; | ||
971 | } | ||
972 | return false; | ||
973 | } | ||
974 | |||
975 | /** | ||
976 | * Return the file content of the given file | ||
977 | * | ||
978 | * @param string $file File complete path | ||
979 | * @return string File content (or false if problem) | ||
980 | */ | ||
981 | protected function _fileGetContents($file) | ||
982 | { | ||
983 | $result = false; | ||
984 | if (!is_file($file)) { | ||
985 | return false; | ||
986 | } | ||
987 | $f = @fopen($file, 'rb'); | ||
988 | if ($f) { | ||
989 | if ($this->_options['file_locking']) @flock($f, LOCK_SH); | ||
990 | $result = stream_get_contents($f); | ||
991 | if ($this->_options['file_locking']) @flock($f, LOCK_UN); | ||
992 | @fclose($f); | ||
993 | } | ||
994 | return $result; | ||
995 | } | ||
996 | |||
997 | /** | ||
998 | * Put the given string into the given file | ||
999 | * | ||
1000 | * @param string $file File complete path | ||
1001 | * @param string $string String to put in file | ||
1002 | * @return boolean true if no problem | ||
1003 | */ | ||
1004 | protected function _filePutContents($file, $string) | ||
1005 | { | ||
1006 | $result = false; | ||
1007 | $f = @fopen($file, 'ab+'); | ||
1008 | if ($f) { | ||
1009 | if ($this->_options['file_locking']) @flock($f, LOCK_EX); | ||
1010 | fseek($f, 0); | ||
1011 | ftruncate($f, 0); | ||
1012 | $tmp = @fwrite($f, $string); | ||
1013 | if (!($tmp === FALSE)) { | ||
1014 | $result = true; | ||
1015 | } | ||
1016 | @fclose($f); | ||
1017 | } | ||
1018 | @chmod($file, $this->_options['cache_file_perm']); | ||
1019 | return $result; | ||
1020 | } | ||
1021 | |||
1022 | /** | ||
1023 | * Transform a file name into cache id and return it | ||
1024 | * | ||
1025 | * @param string $fileName File name | ||
1026 | * @return string Cache id | ||
1027 | */ | ||
1028 | protected function _fileNameToId($fileName) | ||
1029 | { | ||
1030 | $prefix = $this->_options['file_name_prefix']; | ||
1031 | return preg_replace('~^' . $prefix . '---(.*)$~', '$1', $fileName); | ||
1032 | } | ||
1033 | |||
1034 | } | ||
diff --git a/inc/3rdparty/libraries/Zend/Cache/Backend/Interface.php b/inc/3rdparty/libraries/Zend/Cache/Backend/Interface.php new file mode 100644 index 00000000..3f44e2e1 --- /dev/null +++ b/inc/3rdparty/libraries/Zend/Cache/Backend/Interface.php | |||
@@ -0,0 +1,99 @@ | |||
1 | <?php | ||
2 | /** | ||
3 | * Zend Framework | ||
4 | * | ||
5 | * LICENSE | ||
6 | * | ||
7 | * This source file is subject to the new BSD license that is bundled | ||
8 | * with this package in the file LICENSE.txt. | ||
9 | * It is also available through the world-wide-web at this URL: | ||
10 | * http://framework.zend.com/license/new-bsd | ||
11 | * If you did not receive a copy of the license and are unable to | ||
12 | * obtain it through the world-wide-web, please send an email | ||
13 | * to license@zend.com so we can send you a copy immediately. | ||
14 | * | ||
15 | * @category Zend | ||
16 | * @package Zend_Cache | ||
17 | * @subpackage Zend_Cache_Backend | ||
18 | * @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com) | ||
19 | * @license http://framework.zend.com/license/new-bsd New BSD License | ||
20 | * @version $Id: Interface.php 24593 2012-01-05 20:35:02Z matthew $ | ||
21 | */ | ||
22 | |||
23 | |||
24 | /** | ||
25 | * @package Zend_Cache | ||
26 | * @subpackage Zend_Cache_Backend | ||
27 | * @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com) | ||
28 | * @license http://framework.zend.com/license/new-bsd New BSD License | ||
29 | */ | ||
30 | interface Zend_Cache_Backend_Interface | ||
31 | { | ||
32 | /** | ||
33 | * Set the frontend directives | ||
34 | * | ||
35 | * @param array $directives assoc of directives | ||
36 | */ | ||
37 | public function setDirectives($directives); | ||
38 | |||
39 | /** | ||
40 | * Test if a cache is available for the given id and (if yes) return it (false else) | ||
41 | * | ||
42 | * Note : return value is always "string" (unserialization is done by the core not by the backend) | ||
43 | * | ||
44 | * @param string $id Cache id | ||
45 | * @param boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested | ||
46 | * @return string|false cached datas | ||
47 | */ | ||
48 | public function load($id, $doNotTestCacheValidity = false); | ||
49 | |||
50 | /** | ||
51 | * Test if a cache is available or not (for the given id) | ||
52 | * | ||
53 | * @param string $id cache id | ||
54 | * @return mixed|false (a cache is not available) or "last modified" timestamp (int) of the available cache record | ||
55 | */ | ||
56 | public function test($id); | ||
57 | |||
58 | /** | ||
59 | * Save some string datas into a cache record | ||
60 | * | ||
61 | * Note : $data is always "string" (serialization is done by the | ||
62 | * core not by the backend) | ||
63 | * | ||
64 | * @param string $data Datas to cache | ||
65 | * @param string $id Cache id | ||
66 | * @param array $tags Array of strings, the cache record will be tagged by each string entry | ||
67 | * @param int $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime) | ||
68 | * @return boolean true if no problem | ||
69 | */ | ||
70 | public function save($data, $id, $tags = array(), $specificLifetime = false); | ||
71 | |||
72 | /** | ||
73 | * Remove a cache record | ||
74 | * | ||
75 | * @param string $id Cache id | ||
76 | * @return boolean True if no problem | ||
77 | */ | ||
78 | public function remove($id); | ||
79 | |||
80 | /** | ||
81 | * Clean some cache records | ||
82 | * | ||
83 | * Available modes are : | ||
84 | * Zend_Cache::CLEANING_MODE_ALL (default) => remove all cache entries ($tags is not used) | ||
85 | * Zend_Cache::CLEANING_MODE_OLD => remove too old cache entries ($tags is not used) | ||
86 | * Zend_Cache::CLEANING_MODE_MATCHING_TAG => remove cache entries matching all given tags | ||
87 | * ($tags can be an array of strings or a single string) | ||
88 | * Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG => remove cache entries not {matching one of the given tags} | ||
89 | * ($tags can be an array of strings or a single string) | ||
90 | * Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG => remove cache entries matching any given tags | ||
91 | * ($tags can be an array of strings or a single string) | ||
92 | * | ||
93 | * @param string $mode Clean mode | ||
94 | * @param array $tags Array of tags | ||
95 | * @return boolean true if no problem | ||
96 | */ | ||
97 | public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array()); | ||
98 | |||
99 | } | ||