1. <?php
  3. /**
  4. * Batch Response Header Modifier (Development Only)
  5. *
  6. * This script allows for batch modification of HTTP response headers.
  7. * It's intended for development and debugging purposes only.
  8. * DO NOT USE IN PRODUCTION.
  9. */
  11. /**
  12. * Modifies response headers based on a provided array of operations.
  13. *
  14. * @param array $operations An array of header modification operations.
  15. * Each operation should be an associative array with:
  16. * - 'name': The header name (string).
  17. * - 'value': The new header value (string).
  18. * - 'action': 'set' to set the header, 'add' to add a header, or 'remove' to remove a header.
  19. * @return array An array of results, each containing the operation, status (success/error), and message.
  20. */
  21. function batchModifyHeaders(array $operations): array
  22. {
  23. $results = [];
  25. foreach ($operations as $operation) {
  26. $name = $operation['name'];
  27. $value = $operation['value'];
  28. $action = $operation['action'];
  30. // Validate input
  31. if (empty($name)) {
  32. $results[] = [
  33. 'operation' => $operation,
  34. 'status' => 'error',
  35. 'message' => 'Header name cannot be empty.'
  36. ];
  37. continue;
  38. }
  40. if (!is_string($name) || empty($value) || !is_string($value)) {
  41. $results[] = [
  42. 'operation' => $operation,
  43. 'status' => 'error',
  44. 'message' => 'Invalid header name or value. Must be non-empty strings.'
  45. ];
  46. continue;
  47. }
  50. // Perform the header modification. This is a simplified example.
  51. // In a real application, you would modify the headers before sending the response.
  52. $headers = array();
  54. if ($action === 'set') {
  55. $headers[$name] = $value;
  56. } elseif ($action === 'add') {
  57. $headers[$name] = $value;
  58. } elseif ($action === 'remove') {
  59. if (isset($headers[$name])) {
  60. unset($headers[$name]);
  61. } else {
  62. $results[] = [
  63. 'operation' => $operation,
  64. 'status' => 'error',
  65. 'message' => 'Header ' . $name . ' not found.'
  66. ];
  67. continue;
  68. }
  69. } else {
  70. $results[] = [
  71. 'operation' => $operation,
  72. 'status' => 'error',
  73. 'message' => 'Invalid action. Must be "set", "add", or "remove".'
  74. ];
  75. continue;
  76. }
  79. //Simulate setting the headers (in a real app, this would be done differently)
  80. header_set_extra_filter('no-cache'); // Example header
  82. $results[] = [
  83. 'operation' => $operation,
  84. 'status' => 'success',
  85. 'message' => 'Header ' . $name . ' ' . $action . ' successfully.'
  86. ];
  87. }
  89. return $results;
  90. }
  94. // Example Usage (Development Only!)
  95. $operations = [
  96. ['name' => 'X-Custom-Header', 'value' => 'Test Value', 'action' => 'add'],
  97. ['name' => 'Content-Type', 'value' => 'application/json', 'action' => 'set'],
  98. ['name' => 'X-Debug-Header', 'value' => 'Debug Info', 'action' => 'add'],
  99. ['name' => 'Content-Type', 'value' => 'application/xml', 'action' => 'set'], //This will fail as Content-Type is likely already set.
  100. ['name' => '', 'value' => 'Test Value', 'action' => 'add'], //Invalid name
  101. ['name' => 'X-Invalid', 'value' => '', 'action' => 'add'], //Invalid Value
  102. ['name' => 'NonExistentHeader', 'value' => 'Some Value', 'action' => 'remove'],
  103. ['name' => 'X-ExistingHeader', 'value' => 'Some Value', 'action' => 'remove'],
  106. ];
  108. $results = batchModifyHeaders($operations);
  110. foreach ($results as $result) {
  111. echo "<pre>";
  112. print_r($result);
  113. echo "</pre>";

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