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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Engelsystem\Controllers; |
| 6 | |
| 7 | use Carbon\Carbon; |
| 8 | use Engelsystem\Config\Config; |
| 9 | use Engelsystem\Helpers\Authenticator; |
| 10 | use Engelsystem\Http\Exceptions\HttpNotFound; |
| 11 | use Engelsystem\Http\Redirector; |
| 12 | use Engelsystem\Http\Request; |
| 13 | use Engelsystem\Http\Response; |
| 14 | use Engelsystem\Http\UrlGenerator; |
| 15 | use Engelsystem\Models\OAuth; |
| 16 | use Illuminate\Support\Arr; |
| 17 | use Illuminate\Support\Collection; |
| 18 | use League\OAuth2\Client\Provider\AbstractProvider; |
| 19 | use League\OAuth2\Client\Provider\Exception\IdentityProviderException; |
| 20 | use League\OAuth2\Client\Provider\GenericProvider; |
| 21 | use League\OAuth2\Client\Provider\ResourceOwnerInterface as ResourceOwner; |
| 22 | use League\OAuth2\Client\Token\AccessTokenInterface; |
| 23 | use Psr\Log\LoggerInterface; |
| 24 | use Symfony\Component\HttpFoundation\Session\Session as Session; |
| 25 | |
| 26 | class OAuthController extends BaseController |
| 27 | { |
| 28 | use HasUserNotifications; |
| 29 | |
| 30 | public function __construct( |
| 31 | protected Authenticator $auth, |
| 32 | protected AuthController $authController, |
| 33 | protected Config $config, |
| 34 | protected LoggerInterface $log, |
| 35 | protected OAuth $oauth, |
| 36 | protected Redirector $redirect, |
| 37 | protected Session $session, |
| 38 | protected UrlGenerator $url |
| 39 | ) { |
| 40 | } |
| 41 | |
| 42 | public function index(Request $request): Response |
| 43 | { |
| 44 | $providerName = $request->getAttribute('provider'); |
| 45 | |
| 46 | $provider = $this->getProvider($providerName); |
| 47 | $config = $this->config->get('oauth')[$providerName]; |
| 48 | |
| 49 | // Handle OAuth error response according to https://www.rfc-editor.org/rfc/rfc6749#section-4.1.2.1 |
| 50 | if ($request->has('error')) { |
| 51 | throw new HttpNotFound('oauth.' . $request->get('error')); |
| 52 | } |
| 53 | |
| 54 | // Initial request redirects to provider |
| 55 | if (!$request->has('code')) { |
| 56 | $authorizationUrl = $provider->getAuthorizationUrl( |
| 57 | [ |
| 58 | // League oauth separates scopes by comma, which is wrong, so we do it |
| 59 | // here properly by spaces. See https://www.rfc-editor.org/rfc/rfc6749#section-3.3 |
| 60 | 'scope' => join(' ', $config['scope'] ?? []), |
| 61 | ] |
| 62 | ); |
| 63 | $this->session->set('oauth2_state', $provider->getState()); |
| 64 | |
| 65 | return $this->redirect->to($authorizationUrl); |
| 66 | } |
| 67 | |
| 68 | // Redirected URL got called a second time |
| 69 | if ( |
| 70 | !$this->session->get('oauth2_state') |
| 71 | || $request->get('state') !== $this->session->get('oauth2_state') |
| 72 | ) { |
| 73 | $this->session->remove('oauth2_state'); |
| 74 | |
| 75 | $this->log->warning('Invalid OAuth state'); |
| 76 | |
| 77 | throw new HttpNotFound('oauth.invalid-state'); |
| 78 | } |
| 79 | |
| 80 | // Fetch access token |
| 81 | $accessToken = null; |
| 82 | try { |
| 83 | $accessToken = $provider->getAccessToken( |
| 84 | 'authorization_code', |
| 85 | [ |
| 86 | 'code' => $request->get('code'), |
| 87 | ] |
| 88 | ); |
| 89 | } catch (IdentityProviderException $e) { |
| 90 | $this->handleOAuthError($e, $providerName); |
| 91 | } |
| 92 | |
| 93 | // Load resource identifier |
| 94 | $resourceOwner = null; |
| 95 | try { |
| 96 | $resourceOwner = $provider->getResourceOwner($accessToken); |
| 97 | } catch (IdentityProviderException $e) { |
| 98 | $this->handleOAuthError($e, $providerName); |
| 99 | } |
| 100 | $resourceId = $this->getId($providerName, $resourceOwner); |
| 101 | |
| 102 | // Fetch existing oauth state |
| 103 | /** @var OAuth|null $oauth */ |
| 104 | $oauth = $this->oauth |
| 105 | ->query() |
| 106 | ->where('provider', $providerName) |
| 107 | ->where('identifier', $resourceId) |
| 108 | ->get() |
| 109 | // Explicit case-sensitive comparison using PHP as some DBMS collations are case-sensitive and some aren't |
| 110 | ->where('identifier', '===', (string) $resourceId) |
| 111 | ->first(); |
| 112 | |
| 113 | // Update oauth state |
| 114 | $expirationTime = $accessToken->getExpires(); |
| 115 | $expirationTime = $expirationTime |
| 116 | ? Carbon::createFromTimestamp($expirationTime, Carbon::now()->timezone) |
| 117 | : null; |
| 118 | if ($oauth) { |
| 119 | $oauth->access_token = $accessToken->getToken(); |
| 120 | $oauth->refresh_token = $accessToken->getRefreshToken(); |
| 121 | $oauth->expires_at = $expirationTime; |
| 122 | |
| 123 | $oauth->save(); |
| 124 | } |
| 125 | |
| 126 | // Load user |
| 127 | $user = $this->auth->user(); |
| 128 | if ($oauth && $user && $user->id != $oauth->user_id) { |
| 129 | throw new HttpNotFound('oauth.already-connected'); |
| 130 | } |
| 131 | |
| 132 | $connectProvider = $this->session->get('oauth2_connect_provider'); |
| 133 | $this->session->remove('oauth2_connect_provider'); |
| 134 | // Connect user with oauth |
| 135 | if (!$oauth && $user && $connectProvider && $connectProvider == $providerName) { |
| 136 | $oauth = new OAuth([ |
| 137 | 'provider' => $providerName, |
| 138 | 'identifier' => $resourceId, |
| 139 | 'access_token' => $accessToken->getToken(), |
| 140 | 'refresh_token' => $accessToken->getRefreshToken(), |
| 141 | 'expires_at' => $expirationTime, |
| 142 | ]); |
| 143 | $oauth->user() |
| 144 | ->associate($user) |
| 145 | ->save(); |
| 146 | |
| 147 | $this->log->info( |
| 148 | 'Connected OAuth user {user} using {provider}', |
| 149 | ['provider' => $providerName, 'user' => $resourceId] |
| 150 | ); |
| 151 | $this->addNotification('oauth.connected'); |
| 152 | } |
| 153 | |
| 154 | // Load user data |
| 155 | $resourceData = $resourceOwner->toArray(); |
| 156 | if (!empty($config['nested_info'])) { |
| 157 | $resourceData = Arr::dot($resourceData); |
| 158 | } |
| 159 | |
| 160 | $userdata = new Collection($resourceData); |
| 161 | if (!$oauth) { |
| 162 | // User authenticated but has no account |
| 163 | return $this->redirectRegister( |
| 164 | $providerName, |
| 165 | (string) $resourceId, |
| 166 | $accessToken, |
| 167 | $config, |
| 168 | $userdata |
| 169 | ); |
| 170 | } |
| 171 | |
| 172 | if (isset($config['mark_arrived']) && $config['mark_arrived']) { |
| 173 | $this->handleArrive($providerName, $oauth, $resourceOwner); |
| 174 | } |
| 175 | |
| 176 | $response = $this->authController->loginUser($oauth->user); |
| 177 | event('oauth2.login', ['provider' => $providerName, 'data' => $userdata]); |
| 178 | |
| 179 | return $response; |
| 180 | } |
| 181 | |
| 182 | public function connect(Request $request): Response |
| 183 | { |
| 184 | $providerName = $request->getAttribute('provider'); |
| 185 | |
| 186 | $this->requireProvider($providerName); |
| 187 | |
| 188 | $this->session->set('oauth2_connect_provider', $providerName); |
| 189 | |
| 190 | return $this->index($request); |
| 191 | } |
| 192 | |
| 193 | public function disconnect(Request $request): Response |
| 194 | { |
| 195 | $providerName = $request->getAttribute('provider'); |
| 196 | |
| 197 | $this->requireProvider($providerName); |
| 198 | |
| 199 | if (!($this->config->get('oauth')[$providerName]['allow_user_disconnect'] ?? true)) { |
| 200 | throw new HttpNotFound(); |
| 201 | } |
| 202 | |
| 203 | $this->oauth |
| 204 | ->whereUserId($this->auth->user()->id) |
| 205 | ->where('provider', $providerName) |
| 206 | ->delete(); |
| 207 | |
| 208 | $this->log->info('Disconnected OAuth from {provider}', ['provider' => $providerName]); |
| 209 | $this->addNotification('oauth.disconnected'); |
| 210 | |
| 211 | return $this->redirect->back(); |
| 212 | } |
| 213 | |
| 214 | protected function getProvider(string $name): AbstractProvider |
| 215 | { |
| 216 | $this->requireProvider($name); |
| 217 | $config = $this->config->get('oauth')[$name]; |
| 218 | |
| 219 | return new GenericProvider( |
| 220 | [ |
| 221 | 'clientId' => $config['client_id'], |
| 222 | 'clientSecret' => $config['client_secret'], |
| 223 | 'redirectUri' => $this->url->to('oauth/' . $name), |
| 224 | 'urlAuthorize' => $config['url_auth'], |
| 225 | 'urlAccessToken' => $config['url_token'], |
| 226 | 'urlResourceOwnerDetails' => $config['url_info'], |
| 227 | 'responseResourceOwnerId' => $config['id'], |
| 228 | ] |
| 229 | ); |
| 230 | } |
| 231 | |
| 232 | protected function getId(string $providerName, ResourceOwner $resourceOwner): mixed |
| 233 | { |
| 234 | $config = $this->config->get('oauth')[$providerName]; |
| 235 | if (empty($config['nested_info'])) { |
| 236 | return $resourceOwner->getId(); |
| 237 | } |
| 238 | |
| 239 | $data = Arr::dot($resourceOwner->toArray()); |
| 240 | return $data[$config['id']]; |
| 241 | } |
| 242 | |
| 243 | protected function requireProvider(string $provider): void |
| 244 | { |
| 245 | if (!$this->isValidProvider($provider)) { |
| 246 | throw new HttpNotFound('oauth.provider-not-found'); |
| 247 | } |
| 248 | } |
| 249 | |
| 250 | protected function isValidProvider(string $name): bool |
| 251 | { |
| 252 | $config = $this->config->get('oauth'); |
| 253 | |
| 254 | return isset($config[$name]); |
| 255 | } |
| 256 | |
| 257 | protected function handleArrive( |
| 258 | string $providerName, |
| 259 | OAuth $auth, |
| 260 | ResourceOwner $resourceOwner |
| 261 | ): void { |
| 262 | $user = $auth->user; |
| 263 | $userState = $user->state; |
| 264 | |
| 265 | if ($userState->arrived) { |
| 266 | return; |
| 267 | } |
| 268 | |
| 269 | $userState->arrival_date = new Carbon(); |
| 270 | $userState->save(); |
| 271 | |
| 272 | $this->log->info( |
| 273 | 'Set user {name} ({id}) as arrived via {provider} user {user}', |
| 274 | [ |
| 275 | 'provider' => $providerName, |
| 276 | 'user' => $this->getId($providerName, $resourceOwner), |
| 277 | 'name' => $user->name, |
| 278 | 'id' => $user->id, |
| 279 | ] |
| 280 | ); |
| 281 | } |
| 282 | |
| 283 | /** |
| 284 | * |
| 285 | * @throws HttpNotFound |
| 286 | */ |
| 287 | protected function handleOAuthError(IdentityProviderException $e, string $providerName): void |
| 288 | { |
| 289 | $response = $e->getResponseBody(); |
| 290 | $response = is_array($response) ? json_encode($response) : $response; |
| 291 | $this->log->error( |
| 292 | '{provider} identity provider error: {error} {description}', |
| 293 | [ |
| 294 | 'provider' => $providerName, |
| 295 | 'error' => $e->getMessage(), |
| 296 | 'description' => $response, |
| 297 | ] |
| 298 | ); |
| 299 | |
| 300 | throw new HttpNotFound('oauth.provider-error'); |
| 301 | } |
| 302 | |
| 303 | protected function redirectRegister( |
| 304 | string $providerName, |
| 305 | string $providerUserIdentifier, |
| 306 | AccessTokenInterface $accessToken, |
| 307 | array $config, |
| 308 | Collection $userdata |
| 309 | ): Response { |
| 310 | $config = array_merge( |
| 311 | [ |
| 312 | 'username' => null, |
| 313 | 'email' => null, |
| 314 | 'first_name' => null, |
| 315 | 'last_name' => null, |
| 316 | 'enable_password' => false, |
| 317 | 'allow_registration' => null, |
| 318 | 'groups' => null, |
| 319 | ], |
| 320 | $config |
| 321 | ); |
| 322 | |
| 323 | if (!$this->config->get('registration_enabled') && !$config['allow_registration']) { |
| 324 | throw new HttpNotFound('oauth.not-found'); |
| 325 | } |
| 326 | |
| 327 | // Set registration form field data |
| 328 | $this->session->set('form-data-username', $userdata->get($config['username'])); |
| 329 | $this->session->set('form-data-email', $userdata->get($config['email'])); |
| 330 | $this->session->set('form-data-firstname', $userdata->get($config['first_name'])); |
| 331 | $this->session->set('form-data-lastname', $userdata->get($config['last_name'])); |
| 332 | |
| 333 | // Define OAuth state |
| 334 | $this->session->set('oauth2_groups', $userdata->get($config['groups'], [])); |
| 335 | $this->session->set('oauth2_connect_provider', $providerName); |
| 336 | $this->session->set('oauth2_user_id', $providerUserIdentifier); |
| 337 | |
| 338 | $timezone = Carbon::now()->timezone; |
| 339 | $expirationTime = $accessToken->getExpires(); |
| 340 | $expirationTime = $expirationTime ? Carbon::createFromTimestamp($expirationTime, $timezone) : null; |
| 341 | $this->session->set('oauth2_access_token', $accessToken->getToken()); |
| 342 | $this->session->set('oauth2_refresh_token', $accessToken->getRefreshToken()); |
| 343 | $this->session->set('oauth2_expires_at', $expirationTime); |
| 344 | $this->session->set('oauth2_enable_password', $config['enable_password']); |
| 345 | $this->session->set('oauth2_allow_registration', $config['allow_registration']); |
| 346 | |
| 347 | return $this->redirect->to('/register'); |
| 348 | } |
| 349 | } |