/**
* @throws UserSignupException if the user could not be signed up, with a reason
* @throws UserAlreadyExistsException if the user already exists in the database
* @return the created {@link User}
*/
static function trySignup(\Db\Connection $db, OAuth2Providers $provider)
{
$identity = UserOAuth2::auth($provider->getProvider());
if (!$identity) {
throw new UserSignupException("Could not login with OAuth2.");
}
$email = $identity->email;
if ($email || \Openclerk\Config::get('users_require_email', false)) {
if (!$email) {
throw new UserSignupException("No email address found.");
}
if (!is_valid_email($email)) {
throw new UserSignupException("That is not a valid email.");
}
// does a user already exist with this email?
$q = $db->prepare("SELECT * FROM users WHERE email=? LIMIT 1");
$q->execute(array($email));
if ($q->fetch()) {
throw new UserAlreadyExistsException("That email '" . $email . "' is already in use.");
}
}
$uid = $identity->uid;
if (!$uid) {
throw new UserSignupException("No UID found");
}
// does such an identity already exist?
$q = $db->prepare("SELECT * FROM user_oauth2_identities WHERE provider=? AND uid=? LIMIT 1");
$q->execute(array($provider->getKey(), $uid));
if ($q->fetch()) {
throw new UserAlreadyExistsException("That OAuth2 identity is already in use.");
}
// create a new user
$q = $db->prepare("INSERT INTO users SET email=?");
$q->execute(array($email));
$user_id = $db->lastInsertId();
// create a new identity
$q = $db->prepare("INSERT INTO user_oauth2_identities SET user_id=?, provider=?, uid=?");
$q->execute(array($user_id, $provider->getKey(), $uid));
return User::findUser($db, $user_id);
}
