1. <?php
  3. /**
  4. * Logs session cookie operations for non-production use with fallback.
  5. *
  6. * This script logs actions related to session cookies (set, get, delete)
  7. * to a file. It includes fallback mechanisms to ensure logging continues
  8. * even if the primary logging method fails. This is intended for
  9. * non-production environments.
  10. */
  12. // Configuration
  13. $log_file = 'session_cookie_log.txt'; // Primary log file
  14. $backup_log_file = 'session_cookie_log_backup.txt'; // Backup log file
  15. $log_level = 'debug'; // Logging level (debug, info, warning, error)
  17. // Helper function to log messages
  18. function log_message($level, $message) {
  19. $timestamp = date('Y-m-d H:i:s');
  20. $log_entry = "[$timestamp] [$level] $message\n";
  22. // Attempt to log to the primary file
  23. if (file_put_contents($log_file, $log_entry, FILE_APPEND | LOCK_EX)) {
  24. return true; // Success
  25. }
  27. // Fallback: attempt to log to the backup file
  28. if (file_put_contents($backup_log_file, $log_entry, FILE_APPEND | LOCK_EX)) {
  29. return true; // Success
  30. }
  32. // If both fail, log to the screen (for debugging/troubleshooting)
  33. echo "Logging failed. Failed to write to $log_file and $backup_log_file.\n";
  34. echo $log_entry;
  35. return false; // Failure
  36. }
  40. // Session start
  41. session_start();
  43. // Function to log session cookie operations
  44. function log_session_operation($operation, $cookie_name, $cookie_value = null) {
  45. if ($log_level == 'debug') {
  46. log_message('debug', "Session Operation: $operation - Cookie: $cookie_name ($cookie_value)");
  47. }
  48. }
  50. // Example usage - simulate session operations
  51. if (isset($_SESSION['user_id'])) {
  52. log_session_operation('get', 'user_id');
  53. }
  55. if (isset($_COOKIE['session_id'])) {
  56. log_session_operation('get', 'session_id');
  57. }
  59. if (isset($_SESSION['username'])) {
  60. log_session_operation('set', 'username', $_SESSION['username']);
  61. }
  63. if (isset($_COOKIE['remember_me'])) {
  64. log_session_operation('set', 'remember_me', $_COOKIE['remember_me']);
  65. }
  67. if (isset($_SESSION['last_login'])) {
  68. log_session_operation('set', 'last_login', $_SESSION['last_login']);
  69. }
  71. if (isset($_SESSION['user_id'])) {
  72. unset($_SESSION['user_id']);
  73. log_session_operation('delete', 'user_id');
  74. }
  76. if (isset($_COOKIE['remember_me'])) {
  77. unset($_COOKIE['remember_me']);
  78. setcookie('remember_me', '', time() - 3600); //Force cookie to expire
  79. log_session_operation('delete', 'remember_me');
  80. }
  83. //Cleanup - move old log files to backup
  84. if (file_exists($backup_log_file)) {
  85. rename($backup_log_file, $log_file);
  86. unlink($backup_log_file);
  87. }
  91. ?>

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