1. <?php
  3. /**
  4. * Validates HTTP response configuration for short-lived tasks.
  5. *
  6. * @param array $config An array containing the response configuration.
  7. * Example:
  8. * [
  9. * 'status_code' => 200,
  10. * 'headers' => [
  11. * 'Content-Type' => 'application/json',
  12. * 'Cache-Control' => 'no-cache, no-store, must-revalidate',
  13. * 'Pragma' => 'no-cache',
  14. * 'Expires' => '0',
  15. * ],
  16. * 'body_length_limit' => 1024, // in bytes
  17. * ]
  18. *
  19. * @return bool True if the configuration is valid, false otherwise.
  20. */
  21. function validateResponseConfig(array $config): bool
  22. {
  23. // Check if status code is a valid HTTP status code (100-599)
  24. if (!is_int($config['status_code']) || $config['status_code'] < 100 || $config['status_code'] > 599) {
  25. error_log("Invalid status code: " . var_export($config['status_code'], true));
  26. return false;
  27. }
  29. // Check if headers is an array
  30. if (!is_array($config['headers'])) {
  31. error_log("Headers must be an array: " . var_export($config['headers'], true));
  32. return false;
  33. }
  35. // Validate specific header keys (example: Content-Type, Cache-Control)
  36. if (isset($config['headers']['Content-Type']) && !is_string($config['headers']['Content-Type'])) {
  37. error_log("Invalid Content-Type header: " . var_export($config['headers']['Content-Type'], true));
  38. return false;
  39. }
  41. if (isset($config['headers']['Cache-Control']) && !is_string($config['headers']['Cache-Control'])) {
  42. error_log("Invalid Cache-Control header: " . var_export($config['headers']['Cache-Control'], true));
  43. return false;
  44. }
  46. if (isset($config['headers']['Pragma']) && !is_string($config['headers']['Pragma'])) {
  47. error_log("Invalid Pragma header: " . var_export($config['headers']['Pragma'], true));
  48. return false;
  49. }
  51. if (isset($config['headers']['Expires']) && !is_string($config['headers']['Expires'])) {
  52. error_log("Invalid Expires header: " . var_export($config['headers']['Expires'], true));
  53. return false;
  54. }
  56. // Check body length limit
  57. if (!is_int($config['body_length_limit']) || $config['body_length_limit'] <= 0) {
  58. error_log("Invalid body_length_limit: " . var_export($config['body_length_limit'], true));
  59. return false;
  60. }
  62. return true;
  63. }
  65. /**
  66. * Example usage
  67. */
  68. $validConfig = [
  69. 'status_code' => 200,
  70. 'headers' => [
  71. 'Content-Type' => 'application/json',
  72. 'Cache-Control' => 'no-cache, no-store, must-revalidate',
  73. 'Pragma' => 'no-cache',
  74. 'Expires' => '0',
  75. ],
  76. 'body_length_limit' => 1024,
  77. ];
  79. $invalidConfig = [
  80. 'status_code' => 600, // Invalid status code
  81. 'headers' => 'not an array', // Invalid headers
  82. 'body_length_limit' => -1, // Invalid body length
  83. ];
  85. if (validateResponseConfig($validConfig)) {
  86. echo "Valid configuration.\n";
  87. } else {
  88. echo "Invalid configuration.\n";
  89. }
  91. if (validateResponseConfig($invalidConfig)) {
  92. echo "Valid configuration.\n";
  93. } else {
  94. echo "Invalid configuration.\n";
  95. }
  97. ?>

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