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35 lines
1,013 B
PHP
35 lines
1,013 B
PHP
<?php
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$provider = require __DIR__ . '/provider.php';
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if (!empty($_GET['error'])) {
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// Got an error, probably user denied access
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exit('Got error: ' . htmlspecialchars($_GET['error'], ENT_QUOTES, 'UTF-8'));
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} elseif (empty($_GET['code'])) {
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// If we don't have an authorization code then get one
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$authUrl = $provider->getAuthorizationUrl();
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$_SESSION['oauth2state'] = $provider->getState();
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header('Location: ' . $authUrl);
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exit;
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} elseif (empty($_GET['state']) || ($_GET['state'] !== $_SESSION['oauth2state'])) {
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// State is invalid, possible CSRF attack in progress
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unset($_SESSION['oauth2state']);
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exit('Invalid state');
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} else {
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// Try to get an access token (using the authorization code grant)
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$token = $provider->getAccessToken('authorization_code', [
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'code' => $_GET['code']
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]);
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$_SESSION['token'] = serialize($token);
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// Optional: Now you have a token you can look up a users profile data
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header('Location: /user.php');
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}
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