diff --git a/extensions/guacamole-auth-cas/.gitignore b/extensions/guacamole-auth-cas/.gitignore
new file mode 100644
index 000000000..c3a023fc1
--- /dev/null
+++ b/extensions/guacamole-auth-cas/.gitignore
@@ -0,0 +1,3 @@
+*~
+target/
+META-INF/
diff --git a/extensions/guacamole-auth-cas/LICENSE b/extensions/guacamole-auth-cas/LICENSE
new file mode 100644
index 000000000..7378dfb92
--- /dev/null
+++ b/extensions/guacamole-auth-cas/LICENSE
@@ -0,0 +1,220 @@
+
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
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+ 6. Trademarks. This License does not grant permission to use the trade
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+ boilerplate notice, with the fields enclosed by brackets "[]"
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+ 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
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+APACHE GUACAMOLE SUBCOMPONENTS
+
+Apache Guacamole includes a number of subcomponents with separate copyright
+notices and license terms. Your use of these subcomponents is subject to the
+terms and conditions of the following licenses.
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+
+Carlito (http://code.google.com/p/chromium/issues/detail?id=280557)
+-------------------------------------------------------------------
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+ Version: N/A
+ From: 'tyPoland Lukasz Dziedzic' (http://www.lukaszdziedzic.eu/)
+ License(s):
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diff --git a/extensions/guacamole-auth-cas/README.md b/extensions/guacamole-auth-cas/README.md
new file mode 100644
index 000000000..8af4e46e0
--- /dev/null
+++ b/extensions/guacamole-auth-cas/README.md
@@ -0,0 +1,10 @@
+# guacamole-auth-cas
+CAS SSO Module for Guacamole
+
+This is an extension module for Guacamole that authenticates using a CAS SSO backend.
+
+There are two parameters to add to the guacamole.properties file:
+- cas-authorization-endpoint -> The URL of the CAS server.
+- cas-redirect-uri -> Where the CAS server should redirect back to after a successful login.
+
+This module was written using source code provided by Mike Jumper for the OpenID (OAUTH) module and modified to fit the CAS authentication process.
diff --git a/extensions/guacamole-auth-cas/pom.xml b/extensions/guacamole-auth-cas/pom.xml
new file mode 100644
index 000000000..fbb44c316
--- /dev/null
+++ b/extensions/guacamole-auth-cas/pom.xml
@@ -0,0 +1,146 @@
+
+
+
+
+ 4.0.0
+ org.apache.guacamole
+ guacamole-auth-cas
+ jar
+ 0.9.11-incubating
+ guacamole-auth-cas
+ http://guacamole.incubator.apache.org/
+
+
+ UTF-8
+
+
+
+
+
+
+
+ org.apache.maven.plugins
+ maven-compiler-plugin
+ 3.3
+
+ 1.6
+ 1.6
+
+ -Xlint:all
+ -Werror
+
+ true
+
+
+
+
+
+ org.apache.maven.plugins
+ maven-dependency-plugin
+ 2.10
+
+
+ unpack-dependencies
+ prepare-package
+
+ unpack-dependencies
+
+
+ runtime
+ ${project.build.directory}/classes
+
+
+
+
+
+
+
+ maven-assembly-plugin
+ 2.5.3
+
+ ${project.artifactId}-${project.version}
+ false
+
+ src/main/assembly/dist.xml
+
+
+
+
+ make-dist-archive
+ package
+
+ single
+
+
+
+
+
+
+
+
+
+
+
+
+ org.apache.guacamole
+ guacamole-common
+ 0.9.10-incubating
+ provided
+
+
+
+
+ org.apache.guacamole
+ guacamole-ext
+ 0.9.11-incubating
+ provided
+
+
+ org.jasig.cas.client
+ cas-client-core
+ 3.4.1
+
+
+
+ com.google.inject
+ guice
+ 3.0
+
+
+ com.google.inject.extensions
+ guice-multibindings
+ 3.0
+
+
+
+
+ javax.servlet
+ servlet-api
+ 2.5
+ provided
+
+
+
+
+
+
diff --git a/extensions/guacamole-auth-cas/src/main/assembly/dist.xml b/extensions/guacamole-auth-cas/src/main/assembly/dist.xml
new file mode 100644
index 000000000..b89fd534c
--- /dev/null
+++ b/extensions/guacamole-auth-cas/src/main/assembly/dist.xml
@@ -0,0 +1,53 @@
+
+
+
+
+ dist
+ ${project.artifactId}-${project.version}
+
+
+
+ tar.gz
+
+
+
+
+
+
+
+
+ src/licenses
+
+
+
+
+ target
+
+
+ *.jar
+
+
+
+
+
+
diff --git a/extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/AuthenticationProviderService.java b/extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/AuthenticationProviderService.java
new file mode 100644
index 000000000..2222a8639
--- /dev/null
+++ b/extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/AuthenticationProviderService.java
@@ -0,0 +1,111 @@
+/*
+ * 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.cas;
+
+import com.google.inject.Inject;
+import com.google.inject.Provider;
+import java.util.Arrays;
+import java.util.Enumeration;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpSession;
+import org.apache.guacamole.GuacamoleException;
+import org.apache.guacamole.form.Field;
+import org.apache.guacamole.net.auth.Credentials;
+import org.apache.guacamole.net.auth.credentials.CredentialsInfo;
+import org.apache.guacamole.net.auth.credentials.GuacamoleInvalidCredentialsException;
+import org.apache.guacamole.auth.cas.conf.ConfigurationService;
+import org.apache.guacamole.auth.cas.form.CASTicketField;
+import org.apache.guacamole.auth.cas.ticket.TicketValidationService;
+import org.apache.guacamole.auth.cas.user.AuthenticatedUser;
+
+/**
+ * Service providing convenience functions for the CAS AuthenticationProvider
+ * implementation.
+ *
+ * @author Nick Couchman
+ */
+public class AuthenticationProviderService {
+
+ /**
+ * Service for retrieving CAS configuration information.
+ */
+ @Inject
+ private ConfigurationService confService;
+
+ /**
+ * Service for validating received ID tickets.
+ */
+ @Inject
+ private TicketValidationService ticketService;
+
+ /**
+ * Provider for AuthenticatedUser objects.
+ */
+ @Inject
+ private Provider authenticatedUserProvider;
+
+ /**
+ * Returns an AuthenticatedUser representing the user authenticated by the
+ * given credentials.
+ *
+ * @param credentials
+ * The credentials to use for authentication.
+ *
+ * @return
+ * An AuthenticatedUser representing the user authenticated by the
+ * given credentials.
+ *
+ * @throws GuacamoleException
+ * If an error occurs while authenticating the user, or if access is
+ * denied.
+ */
+ public AuthenticatedUser authenticateUser(Credentials credentials)
+ throws GuacamoleException {
+
+ String ticket = null;
+
+ // Pull CAS ticket from request if present
+ HttpServletRequest request = credentials.getRequest();
+ if (request != null) {
+ ticket = request.getParameter(CASTicketField.PARAMETER_NAME);
+ if (ticket != null) {
+ AuthenticatedUser authenticatedUser = authenticatedUserProvider.get();
+ authenticatedUser.init(ticketService.processUsername(ticket), credentials);
+ return authenticatedUser;
+ }
+ }
+
+ // Request CAS ticket
+ throw new GuacamoleInvalidCredentialsException("Invalid login.",
+ new CredentialsInfo(Arrays.asList(new Field[] {
+
+ // CAS-specific ticket (will automatically redirect the user
+ // to the authorization page via JavaScript)
+ new CASTicketField(
+ confService.getAuthorizationEndpoint(),
+ confService.getRedirectURI()
+ )
+
+ }))
+ );
+
+ }
+
+}
diff --git a/extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/CASAuthenticationProvider.java b/extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/CASAuthenticationProvider.java
new file mode 100644
index 000000000..1817946a0
--- /dev/null
+++ b/extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/CASAuthenticationProvider.java
@@ -0,0 +1,107 @@
+/*
+ * 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.cas;
+
+import com.google.inject.Guice;
+import com.google.inject.Injector;
+import org.apache.guacamole.GuacamoleException;
+import org.apache.guacamole.net.auth.AuthenticatedUser;
+import org.apache.guacamole.net.auth.AuthenticationProvider;
+import org.apache.guacamole.net.auth.Credentials;
+import org.apache.guacamole.net.auth.UserContext;
+
+/**
+ * Guacamole authentication backend which authenticates users using an
+ * arbitrary external system implementing CAS. No storage for connections is
+ * provided - only authentication. Storage must be provided by some other
+ * extension.
+ *
+ * @author Michael Jumper
+ */
+public class CASAuthenticationProvider implements AuthenticationProvider {
+
+ /**
+ * Injector which will manage the object graph of this authentication
+ * provider.
+ */
+ private final Injector injector;
+
+ /**
+ * Creates a new CASAuthenticationProvider that authenticates users
+ * against an CAS service
+ *
+ * @throws GuacamoleException
+ * If a required property is missing, or an error occurs while parsing
+ * a property.
+ */
+ public CASAuthenticationProvider() throws GuacamoleException {
+
+ // Set up Guice injector.
+ injector = Guice.createInjector(
+ new CASAuthenticationProviderModule(this)
+ );
+
+ }
+
+ @Override
+ public String getIdentifier() {
+ return "cas";
+ }
+
+ @Override
+ public AuthenticatedUser authenticateUser(Credentials credentials)
+ throws GuacamoleException {
+
+ // Attempt to authenticate user with given credentials
+ AuthenticationProviderService authProviderService = injector.getInstance(AuthenticationProviderService.class);
+ return authProviderService.authenticateUser(credentials);
+
+ }
+
+ @Override
+ public AuthenticatedUser updateAuthenticatedUser(
+ AuthenticatedUser authenticatedUser, Credentials credentials)
+ throws GuacamoleException {
+
+ // No update necessary
+ return authenticatedUser;
+
+ }
+
+ @Override
+ public UserContext getUserContext(AuthenticatedUser authenticatedUser)
+ throws GuacamoleException {
+
+ // No associated data whatsoever
+ return null;
+
+ }
+
+ @Override
+ public UserContext updateUserContext(UserContext context,
+ AuthenticatedUser authenticatedUser, Credentials credentials)
+ throws GuacamoleException {
+
+ // No update necessary
+ return context;
+
+ }
+
+}
diff --git a/extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/CASAuthenticationProviderModule.java b/extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/CASAuthenticationProviderModule.java
new file mode 100644
index 000000000..861cb7014
--- /dev/null
+++ b/extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/CASAuthenticationProviderModule.java
@@ -0,0 +1,83 @@
+/*
+ * 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.cas;
+
+import org.apache.guacamole.auth.cas.conf.ConfigurationService;
+import com.google.inject.AbstractModule;
+import org.apache.guacamole.GuacamoleException;
+import org.apache.guacamole.environment.Environment;
+import org.apache.guacamole.environment.LocalEnvironment;
+import org.apache.guacamole.net.auth.AuthenticationProvider;
+import org.apache.guacamole.auth.cas.ticket.TicketValidationService;
+
+/**
+ * Guice module which configures CAS-specific injections.
+ *
+ * @author Michael Jumper
+ */
+public class CASAuthenticationProviderModule extends AbstractModule {
+
+ /**
+ * Guacamole server environment.
+ */
+ private final Environment environment;
+
+ /**
+ * A reference to the CASAuthenticationProvider on behalf of which this
+ * module has configured injection.
+ */
+ private final AuthenticationProvider authProvider;
+
+ /**
+ * Creates a new CAS authentication provider module which configures
+ * injection for the CASAuthenticationProvider.
+ *
+ * @param authProvider
+ * The AuthenticationProvider for which injection is being configured.
+ *
+ * @throws GuacamoleException
+ * If an error occurs while retrieving the Guacamole server
+ * environment.
+ */
+ public CASAuthenticationProviderModule(AuthenticationProvider authProvider)
+ throws GuacamoleException {
+
+ // Get local environment
+ this.environment = new LocalEnvironment();
+
+ // Store associated auth provider
+ this.authProvider = authProvider;
+
+ }
+
+ @Override
+ protected void configure() {
+
+ // Bind core implementations of guacamole-ext classes
+ bind(AuthenticationProvider.class).toInstance(authProvider);
+ bind(Environment.class).toInstance(environment);
+
+ // Bind CAS-specific services
+ bind(ConfigurationService.class);
+ bind(TicketValidationService.class);
+
+ }
+
+}
diff --git a/extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/conf/CASGuacamoleProperties.java b/extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/conf/CASGuacamoleProperties.java
new file mode 100644
index 000000000..df7075c3a
--- /dev/null
+++ b/extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/conf/CASGuacamoleProperties.java
@@ -0,0 +1,62 @@
+/*
+ * 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.cas.conf;
+
+import org.apache.guacamole.properties.StringGuacamoleProperty;
+
+/**
+ * Provides properties required for use of the CAS authentication provider.
+ * These properties will be read from guacamole.properties when the CAS
+ * authentication provider is used.
+ *
+ * @author Nick Couchman
+ */
+public class CASGuacamoleProperties {
+
+ /**
+ * This class should not be instantiated.
+ */
+ private CASGuacamoleProperties() {}
+
+ /**
+ * The authorization endpoint (URI) of the CAS service.
+ */
+ public static final StringGuacamoleProperty CAS_AUTHORIZATION_ENDPOINT =
+ new StringGuacamoleProperty() {
+
+ @Override
+ public String getName() { return "cas-authorization-endpoint"; }
+
+ };
+
+ /**
+ * The URI that the CAS service should redirect to after the
+ * authentication process is complete. This must be the full URL that a
+ * user would enter into their browser to access Guacamole.
+ */
+ public static final StringGuacamoleProperty CAS_REDIRECT_URI =
+ new StringGuacamoleProperty() {
+
+ @Override
+ public String getName() { return "cas-redirect-uri"; }
+
+ };
+
+}
diff --git a/extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/conf/ConfigurationService.java b/extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/conf/ConfigurationService.java
new file mode 100644
index 000000000..f996addd2
--- /dev/null
+++ b/extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/conf/ConfigurationService.java
@@ -0,0 +1,73 @@
+/*
+ * 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.cas.conf;
+
+import com.google.inject.Inject;
+import org.apache.guacamole.GuacamoleException;
+import org.apache.guacamole.environment.Environment;
+
+/**
+ * Service for retrieving configuration information regarding the CAS service.
+ *
+ * @author Nick Couchman
+ */
+public class ConfigurationService {
+
+ /**
+ * The Guacamole server environment.
+ */
+ @Inject
+ private Environment environment;
+
+ /**
+ * Returns the authorization endpoint (URI) of the CAS service as
+ * configured with guacamole.properties.
+ *
+ * @return
+ * The authorization endpoint of the CAS service, as configured with
+ * guacamole.properties.
+ *
+ * @throws GuacamoleException
+ * If guacamole.properties cannot be parsed, or if the authorization
+ * endpoint property is missing.
+ */
+ public String getAuthorizationEndpoint() throws GuacamoleException {
+ return environment.getRequiredProperty(CASGuacamoleProperties.CAS_AUTHORIZATION_ENDPOINT);
+ }
+
+ /**
+ * Returns the URI that the CAS service should redirect to after
+ * the authentication process is complete, as configured with
+ * guacamole.properties. This must be the full URL that a user would enter
+ * into their browser to access Guacamole.
+ *
+ * @return
+ * The client secret to use when communicating with the CAS service,
+ * as configured with guacamole.properties.
+ *
+ * @throws GuacamoleException
+ * If guacamole.properties cannot be parsed, or if the redirect URI
+ * property is missing.
+ */
+ public String getRedirectURI() throws GuacamoleException {
+ return environment.getRequiredProperty(CASGuacamoleProperties.CAS_REDIRECT_URI);
+ }
+
+}
diff --git a/extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/form/CASTicketField.java b/extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/form/CASTicketField.java
new file mode 100644
index 000000000..51bd11786
--- /dev/null
+++ b/extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/form/CASTicketField.java
@@ -0,0 +1,99 @@
+/*
+ * 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.cas.form;
+
+import java.io.UnsupportedEncodingException;
+import java.math.BigInteger;
+import java.net.URLEncoder;
+import java.security.SecureRandom;
+import org.apache.guacamole.form.Field;
+
+
+/**
+ * Field definition which represents the ticket returned by an CAS service.
+ * Within the user interface, this will be rendered as an appropriate "Log in
+ * with ..." button which links to the CAS service.
+ *
+ * @author Nick Couchman
+ */
+public class CASTicketField extends Field {
+
+ /**
+ * The standard HTTP parameter which will be included within the URL by all
+ * CAS services upon successful authentication and redirect.
+ */
+ public static final String PARAMETER_NAME = "ticket";
+
+ /**
+ * The full URI which the field should link to.
+ */
+ private final String authorizationURI;
+
+ /**
+ * Creates a new CAS "ticket" field which links to the given CAS
+ * service using the provided client ID. Successful authentication at the
+ * CAS service will result in the client being redirected to the specified
+ * redirect URI. The CAS ticket will be embedded in the fragment (the part
+ * following the hash symbol) of that URI, which the JavaScript side of
+ * this extension will move to the query parameters.
+ *
+ * @param authorizationEndpoint
+ * The full URL of the endpoint accepting CAS authentication
+ * requests.
+ *
+ * @param clientID
+ * The ID of the CAS client. This is normally determined ahead of
+ * time by the CAS service through some manual credential request
+ * procedure.
+ *
+ * @param redirectURI
+ * The URI that the CAS service should redirect to upon successful
+ * authentication.
+ */
+ public CASTicketField(String authorizationEndpoint, String redirectURI) {
+
+ // Init base field properties
+ super(PARAMETER_NAME, "GUAC_CAS_TICKET");
+
+ // Build authorization URI from given values
+ try {
+ this.authorizationURI = authorizationEndpoint
+ + "?service=" + URLEncoder.encode(redirectURI, "UTF-8");
+ }
+
+ // Java is required to provide UTF-8 support
+ catch (UnsupportedEncodingException e) {
+ throw new UnsupportedOperationException("Unexpected lack of UTF-8 support.", e);
+ }
+
+ }
+
+ /**
+ * Returns the full URI that this field should link to when a new ticket
+ * needs to be obtained from the CAS service.
+ *
+ * @return
+ * The full URI that this field should link to.
+ */
+ public String getAuthorizationURI() {
+ return authorizationURI;
+ }
+
+}
diff --git a/extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/ticket/TicketValidationService.java b/extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/ticket/TicketValidationService.java
new file mode 100644
index 000000000..0bdb584c5
--- /dev/null
+++ b/extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/ticket/TicketValidationService.java
@@ -0,0 +1,81 @@
+/*
+ * 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.cas.ticket;
+
+import com.google.inject.Inject;
+import org.apache.guacamole.GuacamoleException;
+import org.apache.guacamole.GuacamoleSecurityException;
+import org.apache.guacamole.GuacamoleServerException;
+import org.apache.guacamole.auth.cas.conf.ConfigurationService;
+import org.jasig.cas.client.authentication.AttributePrincipal;
+import org.jasig.cas.client.validation.Assertion;
+import org.jasig.cas.client.validation.Cas20ProxyTicketValidator;
+import org.jasig.cas.client.validation.TicketValidationException;
+
+/**
+ * Service for validating ID tickets forwarded to us by the client, verifying
+ * that they did indeed come from the CAS service.
+ *
+ * @author Nick Couchman
+ */
+public class TicketValidationService {
+
+ /**
+ * Service for retrieving CAS configuration information.
+ */
+ @Inject
+ private ConfigurationService confService;
+
+ /**
+ * Validates and parses the given ID ticket, returning the username contained
+ * therein, as defined by the username claim type given in
+ * guacamole.properties. If the username claim type is missing or the ID
+ * ticket is invalid, an exception is thrown instead.
+ *
+ * @param ticket
+ * The ID ticket to validate and parse.
+ *
+ * @return
+ * The username contained within the given ID ticket.
+ *
+ * @throws GuacamoleException
+ * If the ID ticket is not valid, the username claim type is missing, or
+ * guacamole.properties could not be parsed.
+ */
+ public String processUsername(String ticket) throws GuacamoleException {
+ AttributePrincipal principal = null;
+
+ // Retrieve the configured CAS URL and establish a ticket validator
+ String casServerUrl = confService.getAuthorizationEndpoint();
+ Cas20ProxyTicketValidator sv = new Cas20ProxyTicketValidator(casServerUrl);
+ sv.setAcceptAnyProxy(true);
+ try {
+ String confRedirectURI = confService.getRedirectURI();
+ Assertion a = sv.validate(ticket, confRedirectURI);
+ principal = a.getPrincipal();
+ }
+ catch (TicketValidationException e)
+ Throw new GuacamoleException("Ticket validation failed.", e);
+
+ return principal.getName();
+
+ }
+
+}
diff --git a/extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/user/AuthenticatedUser.java b/extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/user/AuthenticatedUser.java
new file mode 100644
index 000000000..6f1423ebf
--- /dev/null
+++ b/extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/user/AuthenticatedUser.java
@@ -0,0 +1,73 @@
+/*
+ * 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.cas.user;
+
+import com.google.inject.Inject;
+import org.apache.guacamole.net.auth.AbstractAuthenticatedUser;
+import org.apache.guacamole.net.auth.AuthenticationProvider;
+import org.apache.guacamole.net.auth.Credentials;
+
+/**
+ * An CAS-specific implementation of AuthenticatedUser, associating a
+ * username and particular set of credentials with the CAS authentication
+ * provider.
+ *
+ * @author Michael Jumper
+ */
+public class AuthenticatedUser extends AbstractAuthenticatedUser {
+
+ /**
+ * Reference to the authentication provider associated with this
+ * authenticated user.
+ */
+ @Inject
+ private AuthenticationProvider authProvider;
+
+ /**
+ * The credentials provided when this user was authenticated.
+ */
+ private Credentials credentials;
+
+ /**
+ * Initializes this AuthenticatedUser using the given username and
+ * credentials.
+ *
+ * @param username
+ * The username of the user that was authenticated.
+ *
+ * @param credentials
+ * The credentials provided when this user was authenticated.
+ */
+ public void init(String username, Credentials credentials) {
+ this.credentials = credentials;
+ setIdentifier(username.toLowerCase());
+ }
+
+ @Override
+ public AuthenticationProvider getAuthenticationProvider() {
+ return authProvider;
+ }
+
+ @Override
+ public Credentials getCredentials() {
+ return credentials;
+ }
+
+}
diff --git a/extensions/guacamole-auth-cas/src/main/resources/cas.css b/extensions/guacamole-auth-cas/src/main/resources/cas.css
new file mode 100644
index 000000000..dc8357755
--- /dev/null
+++ b/extensions/guacamole-auth-cas/src/main/resources/cas.css
@@ -0,0 +1,23 @@
+/*
+ * 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.
+ */
+
+/* Hide login dialog */
+.login-ui div.login-dialog {
+ display: none;
+}
diff --git a/extensions/guacamole-auth-cas/src/main/resources/casConfig.js b/extensions/guacamole-auth-cas/src/main/resources/casConfig.js
new file mode 100644
index 000000000..79e5698a0
--- /dev/null
+++ b/extensions/guacamole-auth-cas/src/main/resources/casConfig.js
@@ -0,0 +1,51 @@
+/*
+ * 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.
+ */
+
+/**
+ * Config block which registers CAS-specific field types.
+ */
+angular.module('guacCAS').config(['formServiceProvider',
+ function guacCASConfig(formServiceProvider) {
+
+ // Define field for ticket from CAS service
+ formServiceProvider.registerFieldType("GUAC_CAS_TICKET", {
+ templateUrl : '',
+ controller : 'guacCASController',
+ module : 'guacCAS'
+ });
+
+}]);
+
+/**
+ * Config block which augments the existing routing, providing special handling
+ * for the "ticket=" fragments provided by OpenID Connect.
+ */
+angular.module('index').config(['$routeProvider',
+ function indexRouteConfig($routeProvider) {
+
+ var curPath = window.location.href;
+ var ticketPos = curPath.indexOf("?ticket=") + 8;
+ var hashPos = curPath.indexOf("#/");
+ if(ticketPos > 0 && ticketPos < hashPos) {
+ var ticket = curPath.substring(ticketPos, hashPos);
+ var newPath = curPath.substring(0,ticketPos - 8) + '#/?ticket=' + ticket;
+ window.location=newPath;
+ }
+
+}]);
diff --git a/extensions/guacamole-auth-cas/src/main/resources/casController.js b/extensions/guacamole-auth-cas/src/main/resources/casController.js
new file mode 100644
index 000000000..3ef1801ab
--- /dev/null
+++ b/extensions/guacamole-auth-cas/src/main/resources/casController.js
@@ -0,0 +1,30 @@
+/*
+ * 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.
+ */
+
+/**
+ * Controller for the "GUAC_CAS_TICKET" field which simply redirects the user
+ * immediately to the authorization URI.
+ */
+angular.module('guacCAS').controller('guacCASController', ['$scope',
+ function guacCASController($scope) {
+
+ // Redirect to authorization URI
+ window.location = $scope.field.authorizationURI;
+
+}]);
diff --git a/extensions/guacamole-auth-cas/src/main/resources/casModule.js b/extensions/guacamole-auth-cas/src/main/resources/casModule.js
new file mode 100644
index 000000000..bd789dde4
--- /dev/null
+++ b/extensions/guacamole-auth-cas/src/main/resources/casModule.js
@@ -0,0 +1,29 @@
+/*
+ * 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.
+ */
+
+/**
+ * Module which provides handling for CAS authentication.
+ */
+angular.module('guacCAS', [
+ 'form',
+ 'ngRoute',
+]);
+
+// Ensure the CAS module is loaded along with the rest of the app
+angular.module('index').requires.push('guacCAS');
diff --git a/extensions/guacamole-auth-cas/src/main/resources/guac-manifest.json b/extensions/guacamole-auth-cas/src/main/resources/guac-manifest.json
new file mode 100644
index 000000000..5bfb5f70b
--- /dev/null
+++ b/extensions/guacamole-auth-cas/src/main/resources/guac-manifest.json
@@ -0,0 +1,22 @@
+{
+
+ "guacamoleVersion" : "0.9.11-incubating",
+
+ "name" : "CAS Authentication Extension",
+ "namespace" : "guac-cas",
+
+ "authProviders" : [
+ "org.apache.guacamole.auth.cas.CASAuthenticationProvider"
+ ],
+
+ "js" : [
+ "casModule.js",
+ "casController.js",
+ "casConfig.js"
+ ],
+
+ "css" : [
+ "cas.css"
+ ]
+
+}
diff --git a/pom.xml b/pom.xml
index 990d1f97c..e2f700c2a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -49,6 +49,7 @@
guacamole-common-js
+ extensions/guacamole-auth-casextensions/guacamole-auth-duoextensions/guacamole-auth-headerextensions/guacamole-auth-jdbc