Java tutorial
/* * Copyright 2002-2011 the original author or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * https://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.springframework.security.oauth2.provider.password; import java.util.LinkedHashMap; import java.util.Map; import org.springframework.security.authentication.AbstractAuthenticationToken; import org.springframework.security.authentication.AccountStatusException; import org.springframework.security.authentication.AuthenticationManager; import org.springframework.security.authentication.BadCredentialsException; import org.springframework.security.authentication.UsernamePasswordAuthenticationToken; import org.springframework.security.core.Authentication; import org.springframework.security.oauth2.common.exceptions.InvalidGrantException; import org.springframework.security.oauth2.provider.ClientDetails; import org.springframework.security.oauth2.provider.ClientDetailsService; import org.springframework.security.oauth2.provider.OAuth2Authentication; import org.springframework.security.oauth2.provider.OAuth2Request; import org.springframework.security.oauth2.provider.OAuth2RequestFactory; import org.springframework.security.oauth2.provider.TokenRequest; import org.springframework.security.oauth2.provider.token.AbstractTokenGranter; import org.springframework.security.oauth2.provider.token.AuthorizationServerTokenServices; /** * @author Dave Syer * */ public class ResourceOwnerPasswordTokenGranter extends AbstractTokenGranter { private static final String GRANT_TYPE = "password"; private final AuthenticationManager authenticationManager; public ResourceOwnerPasswordTokenGranter(AuthenticationManager authenticationManager, AuthorizationServerTokenServices tokenServices, ClientDetailsService clientDetailsService, OAuth2RequestFactory requestFactory) { this(authenticationManager, tokenServices, clientDetailsService, requestFactory, GRANT_TYPE); } protected ResourceOwnerPasswordTokenGranter(AuthenticationManager authenticationManager, AuthorizationServerTokenServices tokenServices, ClientDetailsService clientDetailsService, OAuth2RequestFactory requestFactory, String grantType) { super(tokenServices, clientDetailsService, requestFactory, grantType); this.authenticationManager = authenticationManager; } @Override protected OAuth2Authentication getOAuth2Authentication(ClientDetails client, TokenRequest tokenRequest) { Map<String, String> parameters = new LinkedHashMap<String, String>(tokenRequest.getRequestParameters()); String username = parameters.get("username"); String password = parameters.get("password"); // Protect from downstream leaks of password parameters.remove("password"); Authentication userAuth = new UsernamePasswordAuthenticationToken(username, password); ((AbstractAuthenticationToken) userAuth).setDetails(parameters); try { userAuth = authenticationManager.authenticate(userAuth); } catch (AccountStatusException ase) { //covers expired, locked, disabled cases (mentioned in section 5.2, draft 31) throw new InvalidGrantException(ase.getMessage()); } catch (BadCredentialsException e) { // If the username/password are wrong the spec says we should send 400/invalid grant throw new InvalidGrantException(e.getMessage()); } if (userAuth == null || !userAuth.isAuthenticated()) { throw new InvalidGrantException("Could not authenticate user: " + username); } OAuth2Request storedOAuth2Request = getRequestFactory().createOAuth2Request(client, tokenRequest); return new OAuth2Authentication(storedOAuth2Request, userAuth); } }