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/wp-includes/SimplePie/Cache.php

https://bitbucket.org/julianelve/vendor-wordpress
PHP | 133 lines | 39 code | 7 blank | 87 comment | 2 complexity | 79fc9017a23a836f4d0f68f7764ca734 MD5 | raw file
Possible License(s): AGPL-1.0, LGPL-2.1, GPL-2.0
  1. <?php
  2. /**
  3. * SimplePie
  4. *
  5. * A PHP-Based RSS and Atom Feed Framework.
  6. * Takes the hard work out of managing a complete RSS/Atom solution.
  7. *
  8. * Copyright (c) 2004-2012, Ryan Parman, Geoffrey Sneddon, Ryan McCue, and contributors
  9. * All rights reserved.
  10. *
  11. * Redistribution and use in source and binary forms, with or without modification, are
  12. * permitted provided that the following conditions are met:
  13. *
  14. * * Redistributions of source code must retain the above copyright notice, this list of
  15. * conditions and the following disclaimer.
  16. *
  17. * * Redistributions in binary form must reproduce the above copyright notice, this list
  18. * of conditions and the following disclaimer in the documentation and/or other materials
  19. * provided with the distribution.
  20. *
  21. * * Neither the name of the SimplePie Team nor the names of its contributors may be used
  22. * to endorse or promote products derived from this software without specific prior
  23. * written permission.
  24. *
  25. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
  26. * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
  27. * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
  28. * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  29. * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  30. * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  31. * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  32. * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  33. * POSSIBILITY OF SUCH DAMAGE.
  34. *
  35. * @package SimplePie
  36. * @version 1.3.1
  37. * @copyright 2004-2012 Ryan Parman, Geoffrey Sneddon, Ryan McCue
  38. * @author Ryan Parman
  39. * @author Geoffrey Sneddon
  40. * @author Ryan McCue
  41. * @link http://simplepie.org/ SimplePie
  42. * @license http://www.opensource.org/licenses/bsd-license.php BSD License
  43. */
  44. /**
  45. * Used to create cache objects
  46. *
  47. * This class can be overloaded with {@see SimplePie::set_cache_class()},
  48. * although the preferred way is to create your own handler
  49. * via {@see register()}
  50. *
  51. * @package SimplePie
  52. * @subpackage Caching
  53. */
  54. class SimplePie_Cache
  55. {
  56. /**
  57. * Cache handler classes
  58. *
  59. * These receive 3 parameters to their constructor, as documented in
  60. * {@see register()}
  61. * @var array
  62. */
  63. protected static $handlers = array(
  64. 'mysql' => 'SimplePie_Cache_MySQL',
  65. 'memcache' => 'SimplePie_Cache_Memcache',
  66. );
  67. /**
  68. * Don't call the constructor. Please.
  69. */
  70. private function __construct() { }
  71. /**
  72. * Create a new SimplePie_Cache object
  73. *
  74. * @param string $location URL location (scheme is used to determine handler)
  75. * @param string $filename Unique identifier for cache object
  76. * @param string $extension 'spi' or 'spc'
  77. * @return SimplePie_Cache_Base Type of object depends on scheme of `$location`
  78. */
  79. public static function get_handler($location, $filename, $extension)
  80. {
  81. $type = explode(':', $location, 2);
  82. $type = $type[0];
  83. if (!empty(self::$handlers[$type]))
  84. {
  85. $class = self::$handlers[$type];
  86. return new $class($location, $filename, $extension);
  87. }
  88. return new SimplePie_Cache_File($location, $filename, $extension);
  89. }
  90. /**
  91. * Create a new SimplePie_Cache object
  92. *
  93. * @deprecated Use {@see get_handler} instead
  94. */
  95. public function create($location, $filename, $extension)
  96. {
  97. trigger_error('Cache::create() has been replaced with Cache::get_handler(). Switch to the registry system to use this.', E_USER_DEPRECATED);
  98. return self::get_handler($location, $filename, $extension);
  99. }
  100. /**
  101. * Register a handler
  102. *
  103. * @param string $type DSN type to register for
  104. * @param string $class Name of handler class. Must implement SimplePie_Cache_Base
  105. */
  106. public static function register($type, $class)
  107. {
  108. self::$handlers[$type] = $class;
  109. }
  110. /**
  111. * Parse a URL into an array
  112. *
  113. * @param string $url
  114. * @return array
  115. */
  116. public static function parse_URL($url)
  117. {
  118. $params = parse_url($url);
  119. $params['extras'] = array();
  120. if (isset($params['query']))
  121. {
  122. parse_str($params['query'], $params['extras']);
  123. }
  124. return $params;
  125. }
  126. }