/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags.
*
* 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 org.keycloak.adapters.saml.elytron;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.URI;
import java.net.URLDecoder;
import java.util.Collection;
import java.util.List;
import java.util.function.Consumer;
import javax.security.auth.callback.Callback;
import javax.security.auth.callback.CallbackHandler;
import javax.security.cert.X509Certificate;
import org.keycloak.adapters.saml.SamlDeployment;
import org.keycloak.adapters.saml.SamlDeploymentContext;
import org.keycloak.adapters.saml.SamlSession;
import org.keycloak.adapters.saml.SamlSessionStore;
import org.keycloak.adapters.spi.AuthChallenge;
import org.keycloak.adapters.spi.AuthenticationError;
import org.keycloak.adapters.spi.HttpFacade;
import org.keycloak.adapters.spi.LogoutError;
import org.keycloak.adapters.spi.SessionIdMapper;
import org.wildfly.security.auth.callback.AnonymousAuthorizationCallback;
import org.wildfly.security.auth.callback.AuthenticationCompleteCallback;
import org.wildfly.security.auth.callback.SecurityIdentityCallback;
import org.wildfly.security.auth.server.SecurityIdentity;
import org.wildfly.security.http.HttpAuthenticationException;
import org.wildfly.security.http.HttpScope;
import org.wildfly.security.http.HttpServerCookie;
import org.wildfly.security.http.HttpServerMechanismsResponder;
import org.wildfly.security.http.HttpServerRequest;
import org.wildfly.security.http.HttpServerResponse;
import org.wildfly.security.http.Scope;
/**
* @author <a href="mailto:psilva@redhat.com">Pedro Igor</a>
*/
class ElytronHttpFacade implements HttpFacade {
private final HttpServerRequest request;
private final CallbackHandler callbackHandler;
private final SamlDeploymentContext deploymentContext;
private final SamlSessionStore sessionStore;
private Consumer<HttpServerResponse> responseConsumer;
private SecurityIdentity securityIdentity;
private boolean restored;
private SamlSession samlSession;
public ElytronHttpFacade(HttpServerRequest request, SessionIdMapper idMapper, SamlDeploymentContext deploymentContext, CallbackHandler handler) {
this.request = request;
this.deploymentContext = deploymentContext;
this.callbackHandler = handler;
this.responseConsumer = response -> {};
this.sessionStore = createTokenStore(idMapper);
}
private SamlSessionStore createTokenStore(SessionIdMapper idMapper) {
return new ElytronSamlSessionStore(this, idMapper, getDeployment());
}
void authenticationComplete(SamlSession samlSession) {
this.samlSession = samlSession;
}
void authenticationComplete() {
this.securityIdentity = SecurityIdentityUtil.authorize(this.callbackHandler, samlSession.getPrincipal());
this.request.authenticationComplete(response -> {
if (!restored) {
responseConsumer.accept(response);
}
}, () -> ((ElytronTokeStore) sessionStore).logout(true));
}
void authenticationCompleteAnonymous() {
try {
AnonymousAuthorizationCallback anonymousAuthorizationCallback = new AnonymousAuthorizationCallback(null);
callbackHandler.handle(new Callback[]{anonymousAuthorizationCallback});
if (anonymousAuthorizationCallback.isAuthorized()) {
callbackHandler.handle(new Callback[]{AuthenticationCompleteCallback.SUCCEEDED, new SecurityIdentityCallback()});
}
request.authenticationComplete(response -> response.forward(getRequest().getRelativePath()));
} catch (Exception e) {
throw new RuntimeException("Unexpected error processing callbacks during logout.", e);
}
}
void authenticationFailed() {
this.request.authenticationFailed("Authentication Failed", response -> responseConsumer.accept(response));
}
void noAuthenticationInProgress(AuthChallenge challenge) {
if (challenge != null) {
challenge.challenge(this);
}
this.request.noAuthenticationInProgress(response -> responseConsumer.accept(response));
}
void authenticationInProgress() {
this.request.authenticationInProgress(response -> responseConsumer.accept(response));
}
HttpScope getScope(Scope scope) {
return request.getScope(scope);
}
HttpScope getScope(Scope scope, String id) {
return request.getScope(scope, id);
}
Collection<String> getScopeIds(Scope scope) {
return request.getScopeIds(scope);
}
SamlDeployment getDeployment() {
return deploymentContext.resolveDeployment(this);
}
@Override
public Request getRequest() {
return new Request() {
@Override
public String getMethod() {
return request.getRequestMethod();
}
@Override
public String getURI() {
try {
return URLDecoder.decode(request.getRequestURI().toString(), "UTF-8");
} catch (UnsupportedEncodingException e) {
throw new RuntimeException("Failed to decode request URI", e);
}
}
@Override
public String getRelativePath() {
return request.getRequestPath();
}
@Override
public boolean isSecure() {
return request.getRequestURI().getScheme().equals("https");
}
@Override
public String getFirstParam(String param) {
return request.getFirstParameterValue(param);
}
@Override
public String getQueryParamValue(String param) {
return request.getFirstParameterValue(param);
}
@Override
public Cookie getCookie(final String cookieName) {
List<HttpServerCookie> cookies = request.getCookies();
if (cookies != null) {
for (HttpServerCookie cookie : cookies) {
if (cookie.getName().equals(cookieName)) {
return new Cookie(cookie.getName(), cookie.getValue(), cookie.getVersion(), cookie.getDomain(), cookie.getPath());
}
}
}
return null;
}
@Override
public String getHeader(String name) {
return request.getFirstRequestHeaderValue(name);
}
@Override
public List<String> getHeaders(String name) {
return request.getRequestHeaderValues(name);
}
@Override
public InputStream getInputStream() {
return request.getInputStream();
}
@Override
public String getRemoteAddr() {
InetSocketAddress sourceAddress = request.getSourceAddress();
if (sourceAddress == null) {
return "";
}
InetAddress address = sourceAddress.getAddress();
if (address == null) {
// this is unresolved, so we just return the host name not exactly spec, but if the name should be
// resolved then a PeerNameResolvingHandler should be used and this is probably better than just
// returning null
return sourceAddress.getHostString();
}
return address.getHostAddress();
}
@Override
public void setError(AuthenticationError error) {
request.getScope(Scope.EXCHANGE).setAttachment(AuthenticationError.class.getName(), error);
}
@Override
public void setError(LogoutError error) {
request.getScope(Scope.EXCHANGE).setAttachment(LogoutError.class.getName(), error);
}
};
}
@Override
public Response getResponse() {
return new Response() {
@Override
public void setStatus(final int status) {
responseConsumer = responseConsumer.andThen(response -> response.setStatusCode(status));
}
@Override
public void addHeader(final String name, final String value) {
responseConsumer = responseConsumer.andThen(response -> response.addResponseHeader(name, value));
}
@Override
public void setHeader(String name, String value) {
addHeader(name, value);
}
@Override
public void resetCookie(final String name, final String path) {
responseConsumer = responseConsumer.andThen(response -> setCookie(name, "", path, null, 0, false, false, response));
}
@Override
public void setCookie(final String name, final String value, final String path, final String domain, final int maxAge, final boolean secure, final boolean httpOnly) {
responseConsumer = responseConsumer.andThen(response -> setCookie(name, value, path, domain, maxAge, secure, httpOnly, response));
}
private void setCookie(final String name, final String value, final String path, final String domain, final int maxAge, final boolean secure, final boolean httpOnly, HttpServerResponse response) {
response.setResponseCookie(new HttpServerCookie() {
@Override
public String getName() {
return name;
}
@Override
public String getValue() {
return value;
}
@Override
public String getDomain() {
return domain;
}
@Override
public int getMaxAge() {
return maxAge;
}
@Override
public String getPath() {
return path;
}
@Override
public boolean isSecure() {
return secure;
}
@Override
public int getVersion() {
return 0;
}
@Override
public boolean isHttpOnly() {
return httpOnly;
}
});
}
@Override
public OutputStream getOutputStream() {
ByteArrayOutputStream stream = new ByteArrayOutputStream();
responseConsumer = responseConsumer.andThen(new Consumer<HttpServerResponse>() {
@Override
public void accept(HttpServerResponse httpServerResponse) {
try {
httpServerResponse.getOutputStream().write(stream.toByteArray());
} catch (IOException e) {
throw new RuntimeException("Failed to write to response output stream", e);
}
}
});
return stream;
}
@Override
public void sendError(int code) {
setStatus(code);
}
@Override
public void sendError(final int code, final String message) {
responseConsumer = responseConsumer.andThen(response -> {
response.setStatusCode(code);
response.addResponseHeader("Content-Type", "text/html");
try {
response.getOutputStream().write(message.getBytes());
} catch (IOException e) {
throw new RuntimeException(e);
}
});
}
@Override
public void end() {
}
};
}
@Override
public X509Certificate[] getCertificateChain() {
return new X509Certificate[0];
}
public boolean restoreRequest() {
restored = this.request.resumeRequest();
return restored;
}
public void suspendRequest() {
responseConsumer = responseConsumer.andThen(httpServerResponse -> request.suspendRequest());
}
public boolean isAuthorized() {
return this.securityIdentity != null;
}
public URI getURI() {
return request.getRequestURI();
}
public SamlSessionStore getSessionStore() {
return sessionStore;
}
}