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ClientSecretPostAuthenticationConverter.java
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ClientSecretPostAuthenticationConverter.java
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/*
* Copyright 2020-2022 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.server.authorization.web.authentication;
import java.util.Map;
import jakarta.servlet.http.HttpServletRequest;
import org.springframework.lang.Nullable;
import org.springframework.security.core.Authentication;
import org.springframework.security.oauth2.core.ClientAuthenticationMethod;
import org.springframework.security.oauth2.core.OAuth2AuthenticationException;
import org.springframework.security.oauth2.core.OAuth2ErrorCodes;
import org.springframework.security.oauth2.core.endpoint.OAuth2ParameterNames;
import org.springframework.security.oauth2.server.authorization.authentication.OAuth2ClientAuthenticationToken;
import org.springframework.security.oauth2.server.authorization.web.OAuth2ClientAuthenticationFilter;
import org.springframework.security.web.authentication.AuthenticationConverter;
import org.springframework.util.MultiValueMap;
import org.springframework.util.StringUtils;
/**
* Attempts to extract client credentials from POST parameters of {@link HttpServletRequest}
* and then converts to an {@link OAuth2ClientAuthenticationToken} used for authenticating the client.
*
* @author Anoop Garlapati
* @since 0.1.0
* @see AuthenticationConverter
* @see OAuth2ClientAuthenticationToken
* @see OAuth2ClientAuthenticationFilter
* @see <a target="_blank" href="https://tools.ietf.org/html/rfc6749#section-2.3.1">Section 2.3.1 Client Password</a>
*/
public final class ClientSecretPostAuthenticationConverter implements AuthenticationConverter {
@Nullable
@Override
public Authentication convert(HttpServletRequest request) {
MultiValueMap<String, String> parameters = OAuth2EndpointUtils.getParameters(request);
// client_id (REQUIRED)
String clientId = parameters.getFirst(OAuth2ParameterNames.CLIENT_ID);
if (!StringUtils.hasText(clientId)) {
return null;
}
if (parameters.get(OAuth2ParameterNames.CLIENT_ID).size() != 1) {
throw new OAuth2AuthenticationException(OAuth2ErrorCodes.INVALID_REQUEST);
}
// client_secret (REQUIRED)
String clientSecret = parameters.getFirst(OAuth2ParameterNames.CLIENT_SECRET);
if (!StringUtils.hasText(clientSecret)) {
return null;
}
if (parameters.get(OAuth2ParameterNames.CLIENT_SECRET).size() != 1) {
throw new OAuth2AuthenticationException(OAuth2ErrorCodes.INVALID_REQUEST);
}
Map<String, Object> additionalParameters = OAuth2EndpointUtils.getParametersIfMatchesAuthorizationCodeGrantRequest(request,
OAuth2ParameterNames.CLIENT_ID,
OAuth2ParameterNames.CLIENT_SECRET);
return new OAuth2ClientAuthenticationToken(clientId, ClientAuthenticationMethod.CLIENT_SECRET_POST, clientSecret,
additionalParameters);
}
}