platine-php /
oauth2
| Total Complexity | 40 |
| Total Lines | 310 |
| Duplicated Lines | 0 % |
| Changes | 1 | ||
| Bugs | 0 | Features | 0 |
Complex classes like AuthorizationServer often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use AuthorizationServer, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 54 | class AuthorizationServer implements AuthorizationServerInterface |
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| 55 | { |
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| 56 | /** |
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| 57 | * The ClientService |
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| 58 | * @var ClientService |
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| 59 | */ |
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| 60 | protected ClientService $clientService; |
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| 61 | |||
| 62 | /** |
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| 63 | * The AccessTokenService |
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| 64 | * @var AccessTokenService |
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| 65 | */ |
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| 66 | protected AccessTokenService $accessTokenService; |
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| 67 | |||
| 68 | /** |
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| 69 | * The RefreshTokenService |
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| 70 | * @var RefreshTokenService |
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| 71 | */ |
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| 72 | protected RefreshTokenService $refreshTokenService; |
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| 73 | |||
| 74 | |||
| 75 | /** |
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| 76 | * The grant list |
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| 77 | * @var array<string, GrantInterface> |
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| 78 | */ |
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| 79 | protected array $grants = []; |
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| 80 | |||
| 81 | /** |
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| 82 | * A list of grant that can answer to an authorization request |
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| 83 | * @var array<string, GrantInterface> |
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| 84 | */ |
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| 85 | protected array $responseTypes = []; |
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| 86 | |||
| 87 | /** |
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| 88 | * Create new instance |
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| 89 | * @param ClientService $clientService |
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| 90 | * @param AccessTokenService $accessTokenService |
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| 91 | * @param RefreshTokenService $refreshTokenService |
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| 92 | * @param array<string, GrantInterface> $grants |
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| 93 | */ |
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| 94 | public function __construct( |
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| 95 | ClientService $clientService, |
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| 96 | AccessTokenService $accessTokenService, |
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| 97 | RefreshTokenService $refreshTokenService, |
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| 98 | array $grants = [] |
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| 99 | ) { |
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| 100 | $this->clientService = $clientService; |
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| 101 | $this->accessTokenService = $accessTokenService; |
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| 102 | $this->refreshTokenService = $refreshTokenService; |
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| 103 | |||
| 104 | foreach ($grants as /** @var GrantInterface $grant */ $grant) { |
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| 105 | if ($grant instanceof AuthorizationServerAwareInterface) { |
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| 106 | $grant->setAuthorizationServer($this); |
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| 107 | } |
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| 108 | |||
| 109 | $this->grants[$grant->getType()] = $grant; |
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|
Bug
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| 110 | |||
| 111 | $responseType = $grant->getResponseType(); |
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| 112 | if (!empty($responseType)) { |
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| 113 | $this->responseTypes[$responseType] = $grant; |
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| 114 | } |
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| 115 | } |
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| 116 | } |
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| 117 | |||
| 118 | /** |
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| 119 | * {@inheritdoc} |
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| 120 | */ |
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| 121 | public function handleAuthorizationRequest( |
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| 122 | ServerRequestInterface $request, |
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| 123 | ?TokenOwnerInterface $owner = null |
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| 124 | ): ResponseInterface { |
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| 125 | try { |
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| 126 | $queryParams = $request->getQueryParams(); |
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| 127 | $responseTypeParam = $queryParams['response_type'] ?? null; |
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| 128 | if ($responseTypeParam === null) { |
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| 129 | throw OAuth2Exception::invalidRequest('No grant response type was found in the request'); |
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| 130 | } |
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| 131 | |||
| 132 | $responseType = $this->getResponseType((string) $responseTypeParam); |
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| 133 | $client = $this->getClient($request, $responseType->allowPublicClients()); |
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| 134 | |||
| 135 | if ($client === null) { |
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| 136 | throw OAuth2Exception::invalidClient('No client could be authenticated'); |
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| 137 | } |
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| 138 | |||
| 139 | $response = $responseType->createAuthorizationResponse($request, $client, $owner); |
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| 140 | } catch (OAuth2Exception $ex) { |
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| 141 | $response = $this->createResponsFromException($ex); |
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| 142 | } |
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| 143 | |||
| 144 | return $response->withHeader('Content-Type', 'application/json'); |
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| 145 | } |
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| 146 | |||
| 147 | /** |
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| 148 | * {@inheritdoc} |
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| 149 | */ |
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| 150 | public function handleTokenRequest( |
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| 151 | ServerRequestInterface $request, |
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| 152 | ?TokenOwnerInterface $owner = null |
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| 153 | ): ResponseInterface { |
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| 154 | $postParams = (array) $request->getParsedBody(); |
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| 155 | |||
| 156 | try { |
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| 157 | $grantParam = $postParams['grant_type'] ?? null; |
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| 158 | if ($grantParam === null) { |
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| 159 | throw OAuth2Exception::invalidRequest('No grant type was found in the request'); |
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| 160 | } |
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| 161 | |||
| 162 | $grant = $this->getGrant((string) $grantParam); |
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| 163 | $client = $this->getClient($request, $grant->allowPublicClients()); |
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| 164 | |||
| 165 | if ($client === null) { |
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| 166 | throw OAuth2Exception::invalidClient('No client could be authenticated'); |
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| 167 | } |
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| 168 | |||
| 169 | $response = $grant->createTokenResponse($request, $client, $owner); |
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| 170 | } catch (OAuth2Exception $ex) { |
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| 171 | $response = $this->createResponsFromException($ex); |
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| 172 | } |
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| 173 | |||
| 174 | // According to the spec, we must set those headers |
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| 175 | // (http://tools.ietf.org/html/rfc6749#section-5.1) |
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| 176 | return $response->withHeader('Content-Type', 'application/json') |
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| 177 | ->withHeader('Cache-Control', 'no-store') |
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| 178 | ->withHeader('Pragma', 'no-cache'); |
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| 179 | } |
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| 180 | |||
| 181 | /** |
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| 182 | * {@inheritdoc} |
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| 183 | */ |
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| 184 | public function handleTokenRevocationRequest(ServerRequestInterface $request): ResponseInterface |
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| 185 | { |
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| 186 | $postParams = (array) $request->getParsedBody(); |
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| 187 | $tokenParam = $postParams['token'] ?? null; |
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| 188 | $tokenHint = $postParams['token_type_hint'] ?? null; |
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| 189 | if ($tokenParam === null || $tokenHint === null) { |
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| 190 | throw OAuth2Exception::invalidRequest( |
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| 191 | 'Cannot revoke a token as the "token" and/or "token_type_hint" parameters are missing' |
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| 192 | ); |
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| 193 | } |
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| 194 | |||
| 195 | if (in_array($tokenHint, ['access_token', 'refresh_token']) === false) { |
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| 196 | throw OAuth2Exception::unsupportedTokenType(sprintf( |
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| 197 | 'Authorization server does not support revocation of token of type "%s"', |
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| 198 | $tokenHint |
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| 199 | )); |
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| 200 | } |
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| 201 | |||
| 202 | if ($tokenHint === 'access_token') { |
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| 203 | $token = $this->accessTokenService->getToken((string) $tokenParam); |
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| 204 | } else { |
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| 205 | $token = $this->refreshTokenService->getToken((string) $tokenParam); |
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| 206 | } |
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| 207 | |||
| 208 | $response = new Response(); |
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| 209 | // According to spec, we should return 200 if token is invalid |
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| 210 | if ($token === null) { |
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| 211 | return $response; |
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| 212 | } |
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| 213 | |||
| 214 | // Now, we must validate the client if the token was generated against a non-public client |
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| 215 | if ($token->getClient() !== null && $token->getClient()->isPublic() === false) { |
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| 216 | $requestClient = $this->getClient($request, false); |
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| 217 | |||
| 218 | if ($requestClient !== $token->getClient()) { |
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| 219 | throw OAuth2Exception::invalidClient( |
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| 220 | 'Token was issued for another client and cannot be revoked' |
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| 221 | ); |
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| 222 | } |
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| 223 | } |
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| 224 | |||
| 225 | try { |
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| 226 | if ($tokenHint === 'access_token') { |
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| 227 | $this->accessTokenService->delete($token); |
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| 228 | } else { |
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| 229 | $this->refreshTokenService->delete($token); |
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| 230 | } |
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| 231 | } catch (Throwable $ex) { |
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| 232 | // According to spec (https://tools.ietf.org/html/rfc7009#section-2.2.1), |
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| 233 | // we should return a server 503 |
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| 234 | // error if we cannot delete the token for any reason |
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| 235 | $response = $response->withStatus(503, 'An error occurred while trying to delete the token'); |
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| 236 | } |
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| 237 | |||
| 238 | return $response; |
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| 239 | } |
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| 240 | |||
| 241 | /** |
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| 242 | * {@inheritdoc} |
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| 243 | */ |
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| 244 | public function hasGrant(string $grant): bool |
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| 245 | { |
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| 246 | return array_key_exists($grant, $this->grants); |
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| 247 | } |
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| 248 | |||
| 249 | /** |
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| 250 | * {@inheritdoc} |
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| 251 | */ |
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| 252 | public function hasResponseType(string $responseType): bool |
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| 253 | { |
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| 254 | return array_key_exists($responseType, $this->responseTypes); |
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| 255 | } |
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| 256 | |||
| 257 | /** |
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| 258 | * Return the grant |
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| 259 | * @param string $grantType |
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| 260 | * @return GrantInterface |
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| 261 | */ |
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| 262 | public function getGrant(string $grantType): GrantInterface |
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| 263 | { |
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| 264 | if ($this->hasGrant($grantType)) { |
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| 265 | return $this->grants[$grantType]; |
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| 266 | } |
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| 267 | |||
| 268 | throw OAuth2Exception::unsupportedGrantType(sprintf( |
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| 269 | 'Grant type "%s" is not supported by this server', |
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| 270 | $grantType |
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| 271 | )); |
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| 272 | } |
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| 273 | |||
| 274 | /** |
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| 275 | * Return the grant response type |
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| 276 | * @param string $responseType |
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| 277 | * @return GrantInterface |
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| 278 | */ |
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| 279 | public function getResponseType(string $responseType): GrantInterface |
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| 280 | { |
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| 281 | if ($this->hasResponseType($responseType)) { |
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| 282 | return $this->responseTypes[$responseType]; |
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| 283 | } |
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| 284 | |||
| 285 | throw OAuth2Exception::unsupportedResponseType(sprintf( |
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| 286 | 'Response type "%s" is not supported by this server', |
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| 287 | $responseType |
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| 288 | )); |
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| 289 | } |
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| 290 | |||
| 291 | /** |
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| 292 | * Get the client (after authenticating it) |
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| 293 | * |
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| 294 | * According to the spec (http://tools.ietf.org/html/rfc6749#section-2.3), for public clients we do |
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| 295 | * not need to authenticate them |
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| 296 | * |
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| 297 | * @param ServerRequestInterface $request |
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| 298 | * @param bool $allowPublicClients |
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| 299 | * @return Client|null |
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| 300 | */ |
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| 301 | protected function getClient(ServerRequestInterface $request, bool $allowPublicClients): ?Client |
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| 302 | { |
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| 303 | [$id, $secret] = $this->getClientCredentialsFromRequest($request); |
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| 304 | |||
| 305 | // If the grant type we are issuing does not allow public clients, and that the secret is |
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| 306 | // missing, then we have an error... |
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| 307 | if ($allowPublicClients === false && empty($secret)) { |
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| 308 | throw OAuth2Exception::invalidClient('Client secret is missing'); |
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| 309 | } |
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| 310 | |||
| 311 | // If we allow public clients and no client id was set, we can return null |
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| 312 | if ($allowPublicClients && empty($id)) { |
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| 313 | return null; |
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| 314 | } |
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| 315 | |||
| 316 | $client = $this->clientService->find($id); |
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| 317 | // We delegate all the checks to the client service |
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| 318 | if ($client === null || ($allowPublicClients === false && $client->authenticate($secret) === false)) { |
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| 319 | throw OAuth2Exception::invalidClient('Client authentication failed'); |
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| 320 | } |
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| 321 | |||
| 322 | return $client; |
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| 323 | } |
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| 324 | |||
| 325 | /** |
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| 326 | * Create a response from the exception, using the format of the spec |
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| 327 | * @link http://tools.ietf.org/html/rfc6749#section-5.2 |
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| 328 | * |
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| 329 | * @param OAuth2Exception $exception |
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| 330 | * @return ResponseInterface |
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| 331 | */ |
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| 332 | protected function createResponsFromException(OAuth2Exception $exception): ResponseInterface |
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| 340 | } |
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| 341 | |||
| 342 | /** |
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| 343 | * Return the client id and secret from request data |
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| 344 | * @param ServerRequestInterface $request |
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| 345 | * @return array<string> |
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| 346 | */ |
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| 347 | protected function getClientCredentialsFromRequest(ServerRequestInterface $request): array |
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| 364 | } |
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| 365 | } |
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| 366 |
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