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GUACAMOLE-1289: Handle resumable state for duo authentication.

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This commit is contained in:
Alex Leitner
2024-03-25 01:27:11 +00:00
parent 7807bb9c11
commit b0e5ecd33e
8 changed files with 243 additions and 148 deletions
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11
extensions/guacamole-auth-duo/src/main/java/org/apache/guacamole/auth/duo/DuoAuthenticationProviderModule.java
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@@ -41,11 +41,6 @@ public class DuoAuthenticationProviderModule extends AbstractModule {
* module has configured injection.
*/
private final AuthenticationProvider authProvider;
/**
* The session manager that stores authentication attempts.
*/
private final DuoAuthenticationSessionManager authSessionManager;
/**
* Creates a new Duo authentication provider module which configures
@@ -66,10 +61,6 @@ public class DuoAuthenticationProviderModule extends AbstractModule {
// Store associated auth provider
this.authProvider = authProvider;
// Create a new session manager
this.authSessionManager = new DuoAuthenticationSessionManager();
}
@Override
@@ -80,11 +71,9 @@ public class DuoAuthenticationProviderModule extends AbstractModule {
bind(Environment.class).toInstance(environment);
// Bind Duo-specific services
bind(DuoAuthenticationSessionManager.class).toInstance(authSessionManager);
bind(ConfigurationService.class);
bind(UserVerificationService.class);
}
}

74
extensions/guacamole-auth-duo/src/main/java/org/apache/guacamole/auth/duo/DuoAuthenticationSession.java
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@@ -1,74 +0,0 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.guacamole.auth.duo;
import org.apache.guacamole.net.auth.AuthenticationSession;
/**
* An AuthenticationSession that stores the information required for an
* in-progress Duo authentication attempt.
*/
public class DuoAuthenticationSession extends AuthenticationSession {
/**
* The session state generated by the Duo client, which is used to track
* the session through the redirect and return process.
*/
private final String state;
/**
* The username of the user who is authenticating with this session.
*/
private final String username;
/**
* Create a new instance of this authenticaiton session, having the given length of time
* for expriation and the state generated by the Duo Client.
*
* @param expires
* The number of milliseconds before this session is invalid.
*
* @param state
* The session state, as generated by the Duo Client.
*
* @param username
* The username of the user who is attempting authentication with Duo.
*/
public DuoAuthenticationSession(long expires, String state, String username) {
super(expires);
this.state = state;
this.username = username;
}
/**
* Return the stored session state.
*
* @return
* The stored session state.
*/
public String getState() {
return state;
}
public String getUsername() {
return username;
}
}

34
extensions/guacamole-auth-duo/src/main/java/org/apache/guacamole/auth/duo/DuoAuthenticationSessionManager.java
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@@ -1,34 +0,0 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.guacamole.auth.duo;
import com.google.inject.Singleton;
import org.apache.guacamole.net.auth.AuthenticationSessionManager;
/**
* An AuthenticationSessionManager implementation that temporarily stores
* authentication attempts for Duo MFA while they are underway.
*/
@Singleton
public class DuoAuthenticationSessionManager extends AuthenticationSessionManager<DuoAuthenticationSession> {
// Nothing to see here.
}

33
extensions/guacamole-auth-duo/src/main/java/org/apache/guacamole/auth/duo/UserVerificationService.java
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@@ -45,7 +45,7 @@ import org.slf4j.LoggerFactory;
*/
public class UserVerificationService {
private static final Logger LOGGER = LoggerFactory.getLogger(UserVerificationService.class);
private static final Logger logger = LoggerFactory.getLogger(UserVerificationService.class);
/**
* The name of the parameter which Duo will return in it's GET call-back
@@ -63,7 +63,7 @@ public class UserVerificationService {
* The value that will be returned in the token if Duo authentication
* was successful.
*/
private static final String DUO_TOKEN_SUCCESS_VALUE = "ALLOW";
private static final String DUO_TOKEN_SUCCESS_VALUE = "allow";
/**
* Service for retrieving Duo configuration information.
@@ -71,13 +71,6 @@ public class UserVerificationService {
@Inject
private ConfigurationService confService;
/**
* The authentication session manager that temporarily stores in-progress
* authentication attempts.
*/
@Inject
private DuoAuthenticationSessionManager duoSessionManager;
/**
* Verifies the identity of the given user via the Duo multi-factor
* authentication service. If a signed response from Duo has not already
@@ -116,8 +109,7 @@ public class UserVerificationService {
confService.getRedirectUrl().toString())
.build();
duoClient.healthCheck();
duoClient.healthCheck();
// Retrieve signed Duo Code and State from the request
String duoCode = request.getParameter(DUO_CODE_PARAMETER_NAME);
@@ -128,10 +120,7 @@ public class UserVerificationService {
// Get a new session state from the Duo client
duoState = duoClient.generateState();
LOGGER.debug(">>> DUO <<< STATE DEFER: {}", duoState);
// Add this session
duoSessionManager.defer(new DuoAuthenticationSession(confService.getAuthTimeout(), duoState, username), duoState);
long expirationTimestamp = System.currentTimeMillis() + (confService.getAuthTimeout() * 1000L);
// Request additional credentials
throw new TranslatableGuacamoleInsufficientCredentialsException(
@@ -143,27 +132,21 @@ public class UserVerificationService {
new URI(duoClient.createAuthUrl(username, duoState)),
new TranslatableMessage("LOGIN.INFO_DUO_REDIRECT_PENDING")
)
))
)),
duoState,
expirationTimestamp
);
}
LOGGER.debug(">>> DUO <<< STATE RESUME: {}", duoState);
// Retrieve the deferred authenticaiton attempt
DuoAuthenticationSession duoSession = duoSessionManager.resume(duoState);
if (duoSession == null)
throw new GuacamoleServerException("Failed to resume Duo authentication session.");
// Get the token from the DuoClient using the code and username, and check status
Token token = duoClient.exchangeAuthorizationCodeFor2FAResult(duoCode, duoSession.getUsername());
Token token = duoClient.exchangeAuthorizationCodeFor2FAResult(duoCode, username);
if (token == null
|| token.getAuth_result() == null
|| !DUO_TOKEN_SUCCESS_VALUE.equals(token.getAuth_result().getStatus()))
throw new TranslatableGuacamoleClientException("Provided Duo "
+ "validation code is incorrect.",
"LOGIN.INFO_DUO_VALIDATION_CODE_INCORRECT");
}
catch (DuoException e) {
throw new GuacamoleServerException("Duo Client error.", e);