Guest User

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a guest
Apr 19th, 2019
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  1. <?php
  2. // Enable error reporting
  3. error_reporting(E_ALL);
  4. ini_set('display_errors', 1);
  5.  
  6. $google_redirect_url = 'REDIRECT_URL';
  7.  
  8. //start session
  9. session_start();
  10.  
  11. //include google api files
  12. include_once 'google-api-php-client/src/Google/autoload.php';
  13.  
  14. // New Google client
  15. $gClient = new Google_Client();
  16. $gClient->setApplicationName('ApplicationName');
  17. $gClient->setAuthConfigFile('client_secret.json');
  18. $gClient->addScope(Google_Service_Oauth2::USERINFO_PROFILE);
  19. $gClient->addScope(Google_Service_Oauth2::USERINFO_EMAIL);
  20.  
  21. // New Google Service
  22. $google_oauthV2 = new Google_Service_Oauth2($gClient);
  23.  
  24. // LOGOUT?
  25. if (isset($_REQUEST['logout']))
  26. {
  27. unset($_SESSION["auto"]);
  28. unset($_SESSION['token']);
  29. $gClient->revokeToken();
  30. header('Location: ' . filter_var($google_redirect_url, FILTER_SANITIZE_URL)); //redirect user back to page
  31. }
  32.  
  33. // GOOGLE CALLBACK?
  34. if (isset($_GET['code']))
  35. {
  36. $gClient->authenticate($_GET['code']);
  37. $_SESSION['token'] = $gClient->getAccessToken();
  38. header('Location: ' . filter_var($google_redirect_url, FILTER_SANITIZE_URL));
  39. return;
  40. }
  41.  
  42. // PAGE RELOAD?
  43. if (isset($_SESSION['token']))
  44. {
  45. $gClient->setAccessToken($_SESSION['token']);
  46. }
  47.  
  48. // Autologin?
  49. if(isset($_GET["auto"]))
  50. {
  51. $_SESSION['auto'] = $_GET["auto"];
  52. }
  53.  
  54. // LOGGED IN?
  55. if ($gClient->getAccessToken()) // Sign in
  56. {
  57. //For logged in user, get details from google using access token
  58. try {
  59. $user = $google_oauthV2->userinfo->get();
  60. $user_id = $user['id'];
  61. $user_name = filter_var($user['givenName'], FILTER_SANITIZE_SPECIAL_CHARS);
  62. $email = filter_var($user['email'], FILTER_SANITIZE_EMAIL);
  63. $gender = filter_var($user['gender'], FILTER_SANITIZE_SPECIAL_CHARS);
  64. $profile_url = filter_var($user['link'], FILTER_VALIDATE_URL);
  65. $profile_image_url = filter_var($user['picture'], FILTER_VALIDATE_URL);
  66. $personMarkup = "$email<div><img src='$profile_image_url?sz=50'></div>";
  67. $_SESSION['token'] = $gClient->getAccessToken();
  68.  
  69. // Show user
  70. echo '<br /><a href="'.$profile_url.'" target="_blank"><img src="'.$profile_image_url.'?sz=100" /></a>';
  71. echo '<br /><a class="logout" href="?logout=1">Logout</a>';
  72.  
  73. $boolarray = Array(false => 'false', true => 'true');
  74. echo '<p>Was automatical login? '.$boolarray[isset($_SESSION["auto"])].'</p>';
  75.  
  76. //list all user details
  77. echo '<pre>';
  78. print_r($user);
  79. echo '</pre>';
  80. } catch (Exception $e) {
  81. // The user revoke the permission for this App! Therefore reset session token
  82. unset($_SESSION["auto"]);
  83. unset($_SESSION['token']);
  84. header('Location: ' . filter_var($google_redirect_url, FILTER_SANITIZE_URL));
  85. }
  86. }
  87. else // Sign up
  88. {
  89. //For Guest user, get google login url
  90. $authUrl = $gClient->createAuthUrl();
  91.  
  92. // Fast access or manual login button?
  93. if(isset($_GET["auto"]))
  94. {
  95. header('Location: ' . filter_var($authUrl, FILTER_SANITIZE_URL));
  96. }
  97. else
  98. {
  99. echo '<p>Login?</p>';
  100. echo '<a class="login" href="'.$authUrl.'"><img src="images/google-login-button.png" /></a>';
  101. }
  102. }
  103. ?>
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