private function setAccountKeyAndContinue(PhabricatorExternalAccount $account, $next_uri) { if ($account->getUserPHID()) { throw new Exception(pht('Account is already registered or linked.')); } // Regenerate the registration secret key, set it on the external account, // set a cookie on the user's machine, and redirect them to registration. // See PhabricatorAuthRegisterController for discussion of the registration // key. $registration_key = Filesystem::readRandomCharacters(32); $account->setProperty('registrationKey', PhabricatorHash::digest($registration_key)); $unguarded = AphrontWriteGuard::beginScopedUnguardedWrites(); $account->save(); unset($unguarded); $this->getRequest()->setTemporaryCookie(PhabricatorCookies::COOKIE_REGISTRATION, $registration_key); return id(new AphrontRedirectResponse())->setURI($next_uri); }