function set_longlived_token()
{
$config = get_facebook_config();
$fb = get_fb_variable();
$helper = $fb->getRedirectLoginHelper();
try {
$accessToken = $helper->getAccessToken();
} catch (Facebook\Exceptions\FacebookResponseException $e) {
// When Graph returns an error
echo 'Graph returned an error: ' . $e->getMessage();
exit;
} catch (Facebook\Exceptions\FacebookSDKException $e) {
// When validation fails or other local issues
echo 'Facebook SDK returned an error: ' . $e->getMessage();
exit;
}
if (!isset($accessToken)) {
if ($helper->getError()) {
header('HTTP/1.0 401 Unauthorized');
echo "Error: " . $helper->getError() . "\n";
echo "Error Code: " . $helper->getErrorCode() . "\n";
echo "Error Reason: " . $helper->getErrorReason() . "\n";
echo "Error Description: " . $helper->getErrorDescription() . "\n";
} else {
header('HTTP/1.0 400 Bad Request');
echo 'Bad request';
}
exit;
}
// Logged in
// echo '<h3>Access Token</h3>';
// var_dump($accessToken->getValue());
// The OAuth 2.0 client handler helps us manage access tokens
$oAuth2Client = $fb->getOAuth2Client();
// Get the access token metadata from /debug_token
$tokenMetadata = $oAuth2Client->debugToken($accessToken);
// echo '<h3>Metadata</h3>';
// var_dump($tokenMetadata);
// Validation (these will throw FacebookSDKException's when they fail)
$tokenMetadata->validateAppId($config['app_id']);
// If you know the user ID this access token belongs to, you can validate it here
// $tokenMetadata->validateUserId('123');
$tokenMetadata->validateExpiration();
if (!$accessToken->isLongLived()) {
// Exchanges a short-lived access token for a long-lived one
try {
$accessToken = $oAuth2Client->getLongLivedAccessToken($accessToken);
} catch (Facebook\Exceptions\FacebookSDKException $e) {
echo "<p>Error getting long-lived access token: " . $helper->getMessage() . "</p>";
exit;
}
// echo '<h3>Long-lived</h3>';
// var_dump($accessToken->getValue());
// $accessToken->getValue()
update_field('field_55a00fafd42fa', $accessToken->getValue(), 'options');
}
update_field('field_55a00fafd42fa', $accessToken->getValue(), 'options');
$_SESSION['fb_access_token'] = (string) $accessToken;
$protocol = !empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' || $_SERVER['SERVER_PORT'] == 443 ? "https://" : "http://";
$url_to_redirect_to = $protocol . $_SERVER['SERVER_NAME'];
header('Location: ' . $url_to_redirect_to . '/?fb_auth=get_page');
}
$fb_login_copy_step_two = 'If you need a new token, <a href="%login_url%">log in with Facebook!</a>';
$fb_login_copy_step_three = 'Done! You can use Facebook in your code now. ';
$query = 'SELECT `wp_options`.`option_value` FROM `wp_options` ';
$fb_app_id_query = $query . 'WHERE `wp_options`.`option_name` = "options_sdo_api_facebook_app_id" ';
$fb_app_secret_query = $query . 'WHERE `wp_options`.`option_name` = "options_sdo_api_facebook_app_secret" ';
$fb_app_token_query = $query . 'WHERE `wp_options`.`option_name` = "options_sdo_api_facebook_app_token" ';
$fb_page_token_query = $query . 'WHERE `wp_options`.`option_name` = "options_sdo_api_facebook_page_token" ';
$fb_app_id = $wpdb->get_var($fb_app_id_query);
$fb_app_secret = $wpdb->get_var($fb_app_secret_query);
$fb_app_token = $wpdb->get_var($fb_app_token_query);
$fb_page_token = $wpdb->get_var($fb_page_token_query);
if ($fb_app_id !== null && $fb_app_secret !== null && $fb_app_token !== null) {
$facebook_message = str_replace('%step_1_content%', '<del>%step_1_content%</del>', $facebook_message);
}
if ($fb_app_id !== null && $fb_app_secret !== null) {
$fb = get_fb_variable();
$fb_helper = $fb->getRedirectLoginHelper();
$fb_permissions = ['email', 'manage_pages'];
$fb_loginUrl = $fb_helper->getLoginUrl($protocol . $_SERVER['SERVER_NAME'] . '/facebook', $fb_permissions);
$fb_loginUrl = htmlspecialchars($fb_loginUrl);
$facebook_message = str_replace('%step_1_content%', '<del>' . $fb_login_copy_step_one . '<del>', $facebook_message);
} else {
$fb_loginUrl = "#";
$facebook_message = str_replace('%step_1_content%', $fb_login_copy_step_one, $facebook_message);
$facebook_message = str_replace('%step_2_content%', '<span style="opacity: 0.25;">%step_2_content%</span>', $facebook_message);
}
if ($fb_app_token == null && $fb_page_token == null) {
$facebook_message = str_replace('%step_3_content%', '<span style="opacity: 0.25;">%step_3_content%</span>', $facebook_message);
} else {
$facebook_message = str_replace('%step_2_content%', '<del>%step_2_content%</del>', $facebook_message);
$facebook_message = str_replace('%step_3_content%', '%step_3_content% This token will expire on <strong>%token_expiration_date%</strong>. Renew it by <a href="' . $fb_loginUrl . '">clicking here</a>. ', $facebook_message);
