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/wp-content/plugins/w3-total-cache/lib/W3/Cdn.php

https://bitbucket.org/openfarmtech/weblog-content
PHP | 91 lines | 61 code | 17 blank | 13 comment | 17 complexity | 58906b16256fc2da7282afb504d95188 MD5 | raw file
Possible License(s): GPL-2.0, AGPL-1.0, LGPL-2.0, LGPL-3.0, BSD-3-Clause, GPL-3.0, LGPL-2.1, AGPL-3.0, CC-BY-SA-3.0 
    

  1. <?php

    2. 

  2. 

    3. 

  3. /**

    4. 

  4.  * W3 CDN Class

    5. 

  5.  */

    6. 

  6. 

    7. 

  7. if (!defined('W3_CDN_FTP')) {

    8. 

  8.     define('W3_CDN_FTP', 'ftp');

    9. 

  9. }

    10. 

  10. 

    11. 

  11. if (!defined('W3_CDN_CF')) {

    12. 

  12.     define('W3_CDN_CF', 'cf');

    13. 

  13. }

    14. 

  14. 

    15. 

  15. if (!defined('W3_CDN_S3')) {

    16. 

  16.     define('W3_CDN_S3', 's3');

    17. 

  17. }

    18. 

  18. 

    19. 

  19. if (!defined('W3_CDN_MIRROR')) {

    20. 

  20.     define('W3_CDN_MIRROR', 'mirror');

    21. 

  21. }

    22. 

  22. 

    23. 

  23. if (!defined('W3_CDN_NETDNA')) {

    24. 

  24.     define('W3_CDN_NETDNA', 'netdna');

    25. 

  25. }

    26. 

  26. 

    27. 

  27. if (!defined('W3_CDN_RSCF')) {

    28. 

  28.     define('W3_CDN_RSCF', 'rscf');

    29. 

  29. }

    30. 

  30. 

    31. 

  31. /**

    32. 

  32.  * Class W3_Cdn

    33. 

  33.  */

    34. 

  34. class W3_Cdn

    35. 

  35. {

    36. 

  36.     /**

    37. 

  37.      * Returns W3_Cdn_Base instance

    38. 

  38.      *

    39. 

  39.      * @param string $engine

    40. 

  40.      * @param array $config

    41. 

  41.      * @return W3_Cdn_Base

    42. 

  42.      */

    43. 

  43.     function &instance($engine, $config = array())

    44. 

  44.     {

    45. 

  45.         static $instances = array();

    46. 

  46.         

    47. 

  47.         $instance_key = sprintf('%s_%s', $engine, md5(serialize($config)));

    48. 

  48.         

    49. 

  49.         if (!isset($instances[$instance_key])) {

    50. 

  50.             switch (true) {

    51. 

  51.                 case ($engine == W3_CDN_FTP) :

    52. 

  52.                     require_once W3TC_LIB_W3_DIR . '/Cdn/Ftp.php';

    53. 

  53.                     $instances[$instance_key] = & new W3_Cdn_Ftp($config);

    54. 

  54.                     break;

    55. 

  55.                 

    56. 

  56.                 case (W3TC_PHP5 && $engine == W3_CDN_S3) :

    57. 

  57.                     require_once W3TC_LIB_W3_DIR . '/Cdn/S3.php';

    58. 

  58.                     $instances[$instance_key] = & new W3_Cdn_S3($config);

    59. 

  59.                     break;

    60. 

  60.                 

    61. 

  61.                 case (W3TC_PHP5 && $engine == W3_CDN_CF) :

    62. 

  62.                     require_once W3TC_LIB_W3_DIR . '/Cdn/Cf.php';

    63. 

  63.                     $instances[$instance_key] = & new W3_Cdn_Cf($config);

    64. 

  64.                     break;

    65. 

  65.                 

    66. 

  66.                 case (W3TC_PHP5 && $engine == W3_CDN_RSCF) :

    67. 

  67.                     require_once W3TC_LIB_W3_DIR . '/Cdn/Rscf.php';

    68. 

  68.                     $instances[$instance_key] = & new W3_Cdn_Rscf($config);

    69. 

  69.                     break;

    70. 

  70.                 

    71. 

  71.                 case ($engine == W3_CDN_MIRROR) :

    72. 

  72.                     require_once W3TC_LIB_W3_DIR . '/Cdn/Mirror.php';

    73. 

  73.                     $instances[$instance_key] = & new W3_Cdn_Mirror($config);

    74. 

  74.                     break;

    75. 

  75.                 

    76. 

  76.                 case ($engine == W3_CDN_NETDNA) :

    77. 

  77.                     require_once W3TC_LIB_W3_DIR . '/Cdn/Netdna.php';

    78. 

  78.                     $instances[$instance_key] = & new W3_Cdn_Netdna($config);

    79. 

  79.                     break;

    80. 

  80.                 

    81. 

  81.                 default :

    82. 

  82.                     trigger_error('Incorrect CDN engine', E_USER_WARNING);

    83. 

  83.                     require_once W3TC_LIB_W3_DIR . '/Cdn/Base.php';

    84. 

  84.                     $instances[$instance_key] = & new W3_Cdn_Base();

    85. 

  85.                     break;

    86. 

  86.             }

    87. 

  87.         }

    88. 

  88.         

    89. 

  89.         return $instances[$instance_key];

    90. 

  90.     }

    91. 

  91. }

    92. 

  92.