validate($request, [ 'code' => 'required', ]); $accessToken = $this->retrieveAccessToken($request->code); $license = $this->fetchOrCreateLicense($accessToken); // If user connected, attach license if (Auth::check()) return $this->attachLicense($license); // otherwise start login flow by passing the encrypted license key id if (is_null($license->user_id)) { return redirect(front_url('/register?appsumo_license='.encrypt($license->id))); } return redirect(front_url('/register?appsumo_error=1')); } private function retrieveAccessToken(string $requestCode): string { return Http::withHeaders([ 'Content-type' => 'application/json' ])->post('https://appsumo.com/openid/token/', [ 'grant_type' => 'authorization_code', 'code' => $requestCode, 'redirect_uri' => route('appsumo.callback'), 'client_id' => config('services.appsumo.client_id'), 'client_secret' => config('services.appsumo.client_secret'), ])->throw()->json('access_token'); } private function fetchOrCreateLicense(string $accessToken): License { // Fetch license from API $licenseKey = Http::get('https://appsumo.com/openid/license_key/?access_token=' . $accessToken) ->throw() ->json('license_key'); // Fetch or create license model $license = License::where('license_provider','appsumo')->where('license_key',$licenseKey)->first(); if (!$license) { $licenseData = Http::withHeaders([ 'X-AppSumo-Licensing-Key' => config('services.appsumo.api_key'), ])->get('https://api.licensing.appsumo.com/v2/licenses/'.$licenseKey)->json(); // Create new license $license = License::create([ 'license_key' => $licenseKey, 'license_provider' => 'appsumo', 'status' => $licenseData['status'] === 'active' ? License::STATUS_ACTIVE : License::STATUS_INACTIVE, 'meta' => $licenseData, ]); } return $license; } private function attachLicense(License $license) { if (!Auth::check()) { throw new AuthenticationException('User not authenticated'); } // Attach license if not already attached if (is_null($license->user_id)) { $license->user_id = Auth::id(); $license->save(); return redirect(front_url('/home?appsumo_connect=1')); } // Licensed already attached return redirect(front_url('/home?appsumo_error=1')); } /** * @param User $user * @param string|null $licenseHash * @return string|null * * Returns null if no license found * Returns true if license was found and attached * Returns false if there was an error (license not found or already attached) */ public static function registerWithLicense(User $user, ?string $licenseHash): ?bool { if (!$licenseHash) { return null; } $licenseId = decrypt($licenseHash); $license = License::find($licenseId); if ($license && is_null($license->user_id)) { $license->user_id = $user->id; $license->save(); return true; } return false; } }