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GUACAMOLE-204: Merge support for CAS authentication.

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Michael Jumper
2017-05-21 20:26:55 -07:00
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extensions/guacamole-auth-cas/.gitignore vendored Normal file
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*~
target/
META-INF/

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extensions/guacamole-auth-cas/pom.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<!--
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.
-->
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.apache.guacamole</groupId>
<artifactId>guacamole-auth-cas</artifactId>
<packaging>jar</packaging>
<version>0.9.12-incubating</version>
<name>guacamole-auth-cas</name>
<url>http://guacamole.incubator.apache.org/</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<build>
<plugins>
<!-- Written for 1.6 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.3</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
<compilerArgs>
<arg>-Xlint:all</arg>
<arg>-Werror</arg>
</compilerArgs>
<fork>true</fork>
</configuration>
</plugin>
<!-- Copy dependencies prior to packaging -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.10</version>
<executions>
<execution>
<id>unpack-dependencies</id>
<phase>prepare-package</phase>
<goals>
<goal>unpack-dependencies</goal>
</goals>
<configuration>
<includeScope>runtime</includeScope>
<outputDirectory>${project.build.directory}/classes</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
<!-- Assembly plugin - for easy distribution -->
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.5.3</version>
<configuration>
<finalName>${project.artifactId}-${project.version}</finalName>
<appendAssemblyId>false</appendAssemblyId>
<descriptors>
<descriptor>src/main/assembly/dist.xml</descriptor>
</descriptors>
</configuration>
<executions>
<execution>
<id>make-dist-archive</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
<!-- Verify format using Apache RAT -->
<plugin>
<groupId>org.apache.rat</groupId>
<artifactId>apache-rat-plugin</artifactId>
<version>0.12</version>
<configuration>
<excludes>
<exclude>**/*.json</exclude>
<exclude>src/licenses/**/*</exclude>
</excludes>
</configuration>
<!-- Bind RAT to validate phase -->
<executions>
<execution>
<id>validate</id>
<phase>validate</phase>
<goals>
<goal>check</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<dependencies>
<!-- Guacamole Java API -->
<dependency>
<groupId>org.apache.guacamole</groupId>
<artifactId>guacamole-common</artifactId>
<version>0.9.10-incubating</version>
<scope>provided</scope>
</dependency>
<!-- Guacamole Extension API -->
<dependency>
<groupId>org.apache.guacamole</groupId>
<artifactId>guacamole-ext</artifactId>
<version>0.9.12-incubating</version>
<scope>provided</scope>
</dependency>
<!-- Apereo CAS Client API -->
<dependency>
<groupId>org.jasig.cas.client</groupId>
<artifactId>cas-client-core</artifactId>
<version>3.4.1</version>
</dependency>
<!-- Guice -->
<dependency>
<groupId>com.google.inject</groupId>
<artifactId>guice</artifactId>
<version>3.0</version>
</dependency>
<dependency>
<groupId>com.google.inject.extensions</groupId>
<artifactId>guice-multibindings</artifactId>
<version>3.0</version>
</dependency>
<!-- Java servlet API -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
</dependencies>
</project>

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extensions/guacamole-auth-cas/src/licenses/DISCLAIMER Normal file
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Apache Guacamole is an effort undergoing incubation at The Apache Software
Foundation (ASF). Incubation is required of all newly accepted projects until a
further review indicates that the infrastructure, communications, and decision
making process have stabilized in a manner consistent with other successful ASF
projects. While incubation status is not necessarily a reflection of the
completeness or stability of the code, it does indicate that the project has
yet to be fully endorsed by the ASF.

236
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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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"License" shall mean the terms and conditions for use, reproduction,
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"You" (or "Your") shall mean an individual or Legal Entity
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the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
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7. Disclaimer of Warranty. Unless required by applicable law or
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Contributor provides its Contributions) on an "AS IS" BASIS,
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of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
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APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
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==============================================================================
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----------------------------------------------------------------------------
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Apache Guacamole
Copyright 2017 The Apache Software Foundation
This product includes software developed at
The Apache Software Foundation (http://www.apache.org/).

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From http://aopalliance.sourceforge.net/:
LICENCE: all the source code provided by AOP Alliance is Public Domain.

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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
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"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
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worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
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Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
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on Your own behalf and on Your sole responsibility, not on behalf
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defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
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APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
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file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright [yyyy] [name of copyright owner]
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
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Unless required by applicable law or agreed to in writing, software
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Apache License
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TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
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<?xml version="1.0" encoding="UTF-8"?>
<!--
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.
-->
<assembly
xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.0 http://maven.apache.org/xsd/assembly-1.1.0.xsd">
<id>dist</id>
<baseDirectory>${project.artifactId}-${project.version}</baseDirectory>
<!-- Output tar.gz -->
<formats>
<format>tar.gz</format>
</formats>
<!-- Include licenses and extension .jar -->
<fileSets>
<!-- Include licenses -->
<fileSet>
<outputDirectory></outputDirectory>
<directory>src/licenses</directory>
</fileSet>
<!-- Include extension .jar -->
<fileSet>
<directory>target</directory>
<outputDirectory></outputDirectory>
<includes>
<include>*.jar</include>
</includes>
</fileSet>
</fileSets>
</assembly>

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/*
* 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.
*/
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<AuthenticatedUser> 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 {
// Pull CAS ticket from request if present
HttpServletRequest request = credentials.getRequest();
if (request != null) {
String 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()
)
}))
);
}
}

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/*
* 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.
*/
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 Object getResource() throws GuacamoleException {
return null;
}
@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;
}
}

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extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/CASAuthenticationProviderModule.java Normal file
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/*
* 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.
*/
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);
}
}

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extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/conf/CASGuacamoleProperties.java Normal file
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/*
* 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.
*/
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"; }
};
}

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/*
* 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.
*/
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 URI to redirect the client back to after authentication
* is completed, as configured in 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);
}
}

98
extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/form/CASTicketField.java Normal file
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/*
* 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.
* This is processed transparently - the user is redirected to CAS, authenticates
* and then is returned to Guacamole where the ticket field is
* processed.
*/
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;
}
}

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extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/ticket/TicketValidationService.java Normal file
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/*
* 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.
*/
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, establish a ticket validator,
// and then attempt to validate the supplied ticket. If that succeeds,
// grab the principal returned by the validator.
String casServerUrl = confService.getAuthorizationEndpoint();
Cas20ProxyTicketValidator validator = new Cas20ProxyTicketValidator(casServerUrl);
validator.setAcceptAnyProxy(true);
try {
String confRedirectURI = confService.getRedirectURI();
Assertion a = validator.validate(ticket, confRedirectURI);
principal = a.getPrincipal();
}
catch (TicketValidationException e) {
throw new GuacamoleException("Ticket validation failed.", e);
}
// Return the principal name as the username.
return principal.getName();
}
}

71
extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/user/AuthenticatedUser.java Normal file
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/*
* 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.
*/
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;
}
}

33
extensions/guacamole-auth-cas/src/main/resources/casConfig.js Normal file
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@@ -0,0 +1,33 @@
/*
* 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'
});
}]);

30
extensions/guacamole-auth-cas/src/main/resources/casController.js Normal file
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@@ -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;
}]);

29
extensions/guacamole-auth-cas/src/main/resources/casModule.js Normal file
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@@ -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');

18
extensions/guacamole-auth-cas/src/main/resources/guac-manifest.json Normal file
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@@ -0,0 +1,18 @@
{
"guacamoleVersion" : "0.9.12-incubating",
"name" : "CAS Authentication Extension",
"namespace" : "guac-cas",
"authProviders" : [
"org.apache.guacamole.auth.cas.CASAuthenticationProvider"
],
"js" : [
"casModule.js",
"casController.js",
"casConfig.js"
]
}

1
pom.xml
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@@ -49,6 +49,7 @@
<module>guacamole-common-js</module>
<!-- Authentication extensions -->
<module>extensions/guacamole-auth-cas</module>
<module>extensions/guacamole-auth-duo</module>
<module>extensions/guacamole-auth-header</module>
<module>extensions/guacamole-auth-jdbc</module>