/* * Copyright 2002-2019 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 * * http://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 com.webauthn4j.springframework.security.fido.server.endpoint; import com.fasterxml.jackson.core.type.TypeReference; import com.webauthn4j.converter.CollectedClientDataConverter; import com.webauthn4j.converter.util.JsonConverter; import com.webauthn4j.converter.util.ObjectConverter; import com.webauthn4j.data.UserVerificationRequirement; import com.webauthn4j.data.client.CollectedClientData; import com.webauthn4j.server.ServerProperty; import com.webauthn4j.springframework.security.fido.server.validator.ServerPublicKeyCredentialValidator; import com.webauthn4j.springframework.security.webauthn.WebAuthnAssertionAuthenticationToken; import com.webauthn4j.springframework.security.webauthn.request.WebAuthnAuthenticationRequest; import com.webauthn4j.springframework.security.webauthn.server.ServerPropertyProvider; import com.webauthn4j.util.Base64UrlUtil; import org.springframework.http.HttpMethod; import org.springframework.security.core.Authentication; import org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter; import org.springframework.security.web.util.matcher.AntPathRequestMatcher; import org.springframework.security.web.util.matcher.RequestMatcher; import org.springframework.util.Assert; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.IOException; import java.io.InputStream; import java.io.UncheckedIOException; import java.util.Collections; import java.util.List; public class FidoServerAssertionResultEndpointFilter extends AbstractAuthenticationProcessingFilter { /** * Default name of path suffix which will validate this filter. */ public static final String FILTER_URL = "/webauthn/assertion/result"; private final JsonConverter jsonConverter; private final ServerPropertyProvider serverPropertyProvider; private final ServerPublicKeyCredentialValidator<ServerAuthenticatorAssertionResponse> serverPublicKeyCredentialValidator; private final TypeReference<ServerPublicKeyCredential<ServerAuthenticatorAssertionResponse>> credentialTypeRef = new TypeReference<ServerPublicKeyCredential<ServerAuthenticatorAssertionResponse>>() { }; private final CollectedClientDataConverter collectedClientDataConverter; private final ServerEndpointFilterUtil serverEndpointFilterUtil; private List<String> expectedAuthenticationExtensionIds = Collections.emptyList(); public FidoServerAssertionResultEndpointFilter( ObjectConverter objectConverter, ServerPropertyProvider serverPropertyProvider, RequestMatcher requiresAuthenticationRequestMatcher) { super(requiresAuthenticationRequestMatcher); this.jsonConverter = objectConverter.getJsonConverter(); this.serverPropertyProvider = serverPropertyProvider; this.serverPublicKeyCredentialValidator = new ServerPublicKeyCredentialValidator<>(); this.setAuthenticationSuccessHandler(new FidoServerAssertionResultEndpointSuccessHandler(objectConverter)); this.setAuthenticationFailureHandler(new FidoServerAssertionResultEndpointFailureHandler(objectConverter)); this.collectedClientDataConverter = new CollectedClientDataConverter(objectConverter); this.serverEndpointFilterUtil = new ServerEndpointFilterUtil(objectConverter); checkConfig(); } public FidoServerAssertionResultEndpointFilter(ObjectConverter objectConverter, ServerPropertyProvider serverPropertyProvider, String defaultFilterProcessesUrl) { this(objectConverter, serverPropertyProvider, new AntPathRequestMatcher(defaultFilterProcessesUrl, HttpMethod.POST.name())); } public FidoServerAssertionResultEndpointFilter(ObjectConverter objectConverter, ServerPropertyProvider serverPropertyProvider) { this(objectConverter, serverPropertyProvider, new AntPathRequestMatcher(FILTER_URL, HttpMethod.POST.name())); } @Override public void afterPropertiesSet() { super.afterPropertiesSet(); checkConfig(); } @SuppressWarnings("squid:S2177") private void checkConfig() { Assert.notNull(serverPropertyProvider, "serverPropertyProvider must not be null"); } @Override public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response) { InputStream inputStream; try { inputStream = request.getInputStream(); } catch (IOException e) { throw new UncheckedIOException(e); } ServerPublicKeyCredential<ServerAuthenticatorAssertionResponse> credential = jsonConverter.readValue(inputStream, credentialTypeRef); serverPublicKeyCredentialValidator.validate(credential); ServerAuthenticatorAssertionResponse assertionResponse = credential.getResponse(); ServerProperty serverProperty = serverPropertyProvider.provide(request); CollectedClientData collectedClientData = collectedClientDataConverter.convert(assertionResponse.getClientDataJSON()); UserVerificationRequirement userVerificationRequirement = serverEndpointFilterUtil.decodeUserVerification(collectedClientData.getChallenge()); WebAuthnAuthenticationRequest webAuthnAuthenticationRequest = new WebAuthnAuthenticationRequest( Base64UrlUtil.decode(credential.getRawId()), Base64UrlUtil.decode(assertionResponse.getClientDataJSON()), Base64UrlUtil.decode(assertionResponse.getAuthenticatorData()), Base64UrlUtil.decode(assertionResponse.getSignature()), credential.getClientExtensionResults(), serverProperty, userVerificationRequirement == UserVerificationRequirement.REQUIRED, false, expectedAuthenticationExtensionIds ); WebAuthnAssertionAuthenticationToken authRequest = new WebAuthnAssertionAuthenticationToken(webAuthnAuthenticationRequest); setDetails(request, authRequest); return this.getAuthenticationManager().authenticate(authRequest); } protected void setDetails(HttpServletRequest request, WebAuthnAssertionAuthenticationToken authRequest) { authRequest.setDetails(this.authenticationDetailsSource.buildDetails(request)); } public List<String> getExpectedAuthenticationExtensionIds() { return expectedAuthenticationExtensionIds; } /** * Sets expected authentication extensionId list * * @param expectedAuthenticationExtensionIds list of expected authentication extensionId */ public void setExpectedAuthenticationExtensionIds(List<String> expectedAuthenticationExtensionIds) { this.expectedAuthenticationExtensionIds = expectedAuthenticationExtensionIds; } }