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GUACAMOLE-210: Migrate to implicit flow (client-side, relies on "id_token"). Update to pre-release 0.9.9-incubating codebase.

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This commit is contained in:
Michael Jumper
2016-06-12 00:14:00 -07:00
parent c3c6e0c43b
commit fdc0313387
14 changed files with 109 additions and 422 deletions
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18
extensions/guacamole-auth-openid/pom.xml
View File

@@ -26,7 +26,7 @@
<groupId>org.apache.guacamole</groupId>
<artifactId>guacamole-auth-openid</artifactId>
<packaging>jar</packaging>
<version>0.9.9</version>
<version>0.9.9-incubating</version>
<name>guacamole-auth-openid</name>
<url>http://guacamole.incubator.apache.org/</url>
@@ -80,24 +80,12 @@
<!-- Guacamole Extension API -->
<dependency>
<groupId>org.glyptodon.guacamole</groupId>
<groupId>org.apache.guacamole</groupId>
<artifactId>guacamole-ext</artifactId>
<version>0.9.9</version>
<version>0.9.9-incubating</version>
<scope>provided</scope>
</dependency>
<!-- Jersey Client -->
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-client</artifactId>
<version>1.17.1</version>
</dependency>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-json</artifactId>
<version>1.17.1</version>
</dependency>
<!-- Guice -->
<dependency>
<groupId>com.google.inject</groupId>

46
extensions/guacamole-auth-openid/src/main/java/org/apache/guacamole/auth/oauth/AuthenticationProviderService.java
View File

@@ -25,14 +25,12 @@ import java.util.Arrays;
import javax.servlet.http.HttpServletRequest;
import org.apache.guacamole.auth.oauth.user.AuthenticatedUser;
import org.apache.guacamole.auth.oauth.conf.ConfigurationService;
import org.apache.guacamole.auth.oauth.form.OAuthCodeField;
import org.apache.guacamole.auth.oauth.token.TokenResponse;
import org.apache.guacamole.auth.oauth.token.TokenService;
import org.glyptodon.guacamole.GuacamoleException;
import org.glyptodon.guacamole.form.Field;
import org.glyptodon.guacamole.net.auth.Credentials;
import org.glyptodon.guacamole.net.auth.credentials.CredentialsInfo;
import org.glyptodon.guacamole.net.auth.credentials.GuacamoleInvalidCredentialsException;
import org.apache.guacamole.auth.oauth.form.OAuthTokenField;
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.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -53,12 +51,6 @@ public class AuthenticationProviderService {
@Inject
private ConfigurationService confService;
/**
* Service for producing authentication tokens from OAuth codes.
*/
@Inject
private TokenService tokenService;
/**
* Provider for AuthenticatedUser objects.
*/
@@ -83,19 +75,15 @@ public class AuthenticationProviderService {
public AuthenticatedUser authenticateUser(Credentials credentials)
throws GuacamoleException {
String code = null;
String token = null;
// Pull OAuth code from request if present
// Pull OAuth token from request if present
HttpServletRequest request = credentials.getRequest();
if (request != null)
code = request.getParameter(OAuthCodeField.PARAMETER_NAME);
token = request.getParameter(OAuthTokenField.PARAMETER_NAME);
// TODO: Actually complete authentication using received code
if (code != null) {
// POST code and client information to OAuth token endpoint
TokenResponse response = tokenService.getTokenFromCode(code);
logger.debug("RESPONSE: {}", response);
// TODO: Actually validate received token
if (token != null) {
// Create corresponding authenticated user
AuthenticatedUser authenticatedUser = authenticatedUserProvider.get();
@@ -104,17 +92,13 @@ public class AuthenticationProviderService {
}
// Request auth code
// Request OAuth token
throw new GuacamoleInvalidCredentialsException("Invalid login.",
new CredentialsInfo(Arrays.asList(new Field[] {
// Normal username/password fields
CredentialsInfo.USERNAME,
CredentialsInfo.PASSWORD,
// OAuth-specific code (will be rendered as an appropriate
// "Log in with..." button
new OAuthCodeField(
// OAuth-specific token (will automatically redirect the user
// to the authorization page via JavaScript)
new OAuthTokenField(
confService.getAuthorizationEndpoint(),
confService.getClientID(),
confService.getRedirectURI()

10
extensions/guacamole-auth-openid/src/main/java/org/apache/guacamole/auth/oauth/OAuthAuthenticationProvider.java
View File

@@ -21,11 +21,11 @@ package org.apache.guacamole.auth.oauth;
import com.google.inject.Guice;
import com.google.inject.Injector;
import org.glyptodon.guacamole.GuacamoleException;
import org.glyptodon.guacamole.net.auth.AuthenticatedUser;
import org.glyptodon.guacamole.net.auth.AuthenticationProvider;
import org.glyptodon.guacamole.net.auth.Credentials;
import org.glyptodon.guacamole.net.auth.UserContext;
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

33
extensions/guacamole-auth-openid/src/main/java/org/apache/guacamole/auth/oauth/OAuthAuthenticationProviderModule.java
View File

@@ -20,17 +20,11 @@
package org.apache.guacamole.auth.oauth;
import com.google.inject.AbstractModule;
import com.sun.jersey.api.client.Client;
import com.sun.jersey.api.client.config.ClientConfig;
import com.sun.jersey.api.client.config.DefaultClientConfig;
import org.apache.guacamole.auth.oauth.conf.ConfigurationService;
import org.apache.guacamole.auth.oauth.token.TokenService;
import org.codehaus.jackson.jaxrs.JacksonJaxbJsonProvider;
import org.codehaus.jackson.map.DeserializationConfig;
import org.glyptodon.guacamole.GuacamoleException;
import org.glyptodon.guacamole.environment.Environment;
import org.glyptodon.guacamole.environment.LocalEnvironment;
import org.glyptodon.guacamole.net.auth.AuthenticationProvider;
import org.apache.guacamole.GuacamoleException;
import org.apache.guacamole.environment.Environment;
import org.apache.guacamole.environment.LocalEnvironment;
import org.apache.guacamole.net.auth.AuthenticationProvider;
/**
* Guice module which configures OAuth-specific injections.
@@ -48,12 +42,6 @@ public class OAuthAuthenticationProviderModule extends AbstractModule {
*/
private final AuthenticationProvider authProvider;
/**
* A reference to the shared HTTP client to be used when making calls to
* the OAuth service.
*/
private final Client client;
/**
* Creates a new OAuth authentication provider module which configures
* injection for the OAuthAuthenticationProvider.
@@ -74,15 +62,6 @@ public class OAuthAuthenticationProviderModule extends AbstractModule {
// Store associated auth provider
this.authProvider = authProvider;
// Set up configuration for HTTP client
ClientConfig clientConfig = new DefaultClientConfig();
clientConfig.getSingletons().add(new JacksonJaxbJsonProvider()
.configure(DeserializationConfig.Feature.FAIL_ON_UNKNOWN_PROPERTIES, false)
);
// Store pre-configured HTTP client
this.client = Client.create(clientConfig);
}
@Override
@@ -94,10 +73,6 @@ public class OAuthAuthenticationProviderModule extends AbstractModule {
// Bind OAuth-specific services
bind(ConfigurationService.class);
bind(TokenService.class);
// Bind HTTP client
bind(Client.class).toInstance(client);
}

38
extensions/guacamole-auth-openid/src/main/java/org/apache/guacamole/auth/oauth/conf/ConfigurationService.java
View File

@@ -20,8 +20,8 @@
package org.apache.guacamole.auth.oauth.conf;
import com.google.inject.Inject;
import org.glyptodon.guacamole.GuacamoleException;
import org.glyptodon.guacamole.environment.Environment;
import org.apache.guacamole.GuacamoleException;
import org.apache.guacamole.environment.Environment;
/**
* Service for retrieving configuration information regarding the OAuth service.
@@ -50,22 +50,6 @@ public class ConfigurationService {
return environment.getRequiredProperty(OAuthGuacamoleProperties.OAUTH_AUTHORIZATION_ENDPOINT);
}
/**
* Returns the token endpoint (URI) of the OAuth service as configured with
* guacamole.properties.
*
* @return
* The token endpoint of the OAuth service, as configured with
* guacamole.properties.
*
* @throws GuacamoleException
* If guacamole.properties cannot be parsed, or if the authorization
* endpoint property is missing.
*/
public String getTokenEndpoint() throws GuacamoleException {
return environment.getRequiredProperty(OAuthGuacamoleProperties.OAUTH_TOKEN_ENDPOINT);
}
/**
* Returns the OAuth client ID which should be submitted to the OAuth
* service when necessary, as configured with guacamole.properties. This
@@ -84,24 +68,6 @@ public class ConfigurationService {
return environment.getRequiredProperty(OAuthGuacamoleProperties.OAUTH_CLIENT_ID);
}
/**
* Returns the OAuth client secret which should be submitted to the OAuth
* service when necessary, as configured with guacamole.properties. This
* value is typically provided by the OAuth service when OAuth credentials
* are generated for your application.
*
* @return
* The client secret to use when communicating with the OAuth service,
* as configured with guacamole.properties.
*
* @throws GuacamoleException
* If guacamole.properties cannot be parsed, or if the client secret
* property is missing.
*/
public String getClientSecret() throws GuacamoleException {
return environment.getRequiredProperty(OAuthGuacamoleProperties.OAUTH_CLIENT_SECRET);
}
/**
* Returns the URI that the OAuth service should redirect to after
* the authentication process is complete, as configured with

26
extensions/guacamole-auth-openid/src/main/java/org/apache/guacamole/auth/oauth/conf/OAuthGuacamoleProperties.java
View File

@@ -19,7 +19,7 @@
package org.apache.guacamole.auth.oauth.conf;
import org.glyptodon.guacamole.properties.StringGuacamoleProperty;
import org.apache.guacamole.properties.StringGuacamoleProperty;
/**
* Provides properties required for use of the OAuth authentication provider.
@@ -44,17 +44,6 @@ public class OAuthGuacamoleProperties {
};
/**
* The token endpoint (URI) of the OAuth service.
*/
public static final StringGuacamoleProperty OAUTH_TOKEN_ENDPOINT =
new StringGuacamoleProperty() {
@Override
public String getName() { return "oauth-token-endpoint"; }
};
/**
* OAuth client ID which should be submitted to the OAuth service when
* necessary. This value is typically provided by the OAuth service when
@@ -68,19 +57,6 @@ public class OAuthGuacamoleProperties {
};
/**
* OAuth client secret which should be submitted to the OAuth service when
* necessary. This value is typically provided by the OAuth service when
* OAuth credentials are generated for your application.
*/
public static final StringGuacamoleProperty OAUTH_CLIENT_SECRET =
new StringGuacamoleProperty() {
@Override
public String getName() { return "oauth-client-secret"; }
};
/**
* The URI that the OAuth service should redirect to after the
* authentication process is complete. This must be the full URL that a

31
extensions/guacamole-auth-openid/src/main/java/org/apache/guacamole/auth/oauth/form/OAuthCodeField.java → extensions/guacamole-auth-openid/src/main/java/org/apache/guacamole/auth/oauth/form/OAuthTokenField.java
View File

@@ -21,20 +21,21 @@ package org.apache.guacamole.auth.oauth.form;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import org.glyptodon.guacamole.form.Field;
import java.util.UUID;
import org.apache.guacamole.form.Field;
/**
* Field definition which represents the code returned by an OAuth service.
* Field definition which represents the token returned by an OAuth service.
* Within the user interface, this will be rendered as an appropriate "Log in
* with ..." button which links to the OAuth service.
*/
public class OAuthCodeField extends Field {
public class OAuthTokenField extends Field {
/**
* The standard HTTP parameter which will be included within the URL by all
* OAuth services upon successful authentication and redirect.
*/
public static final String PARAMETER_NAME = "code";
public static final String PARAMETER_NAME = "id_token";
/**
* The full URI which the field should link to.
@@ -42,11 +43,12 @@ public class OAuthCodeField extends Field {
private final String authorizationURI;
/**
* Creates a new OAuth "code" field which links to the given OAuth service
* using the provided client ID. Successful authentication at the OAuth
* service will result in the client being redirected to the specified
* redirect URI. The OAuth code will be embedded in the query parameters of
* that URI.
* Creates a new OAuth "id_token" field which links to the given OAuth
* service using the provided client ID. Successful authentication at the
* OAuth service will result in the client being redirected to the specified
* redirect URI. The OAuth token 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 OAuth authentication
@@ -61,19 +63,20 @@ public class OAuthCodeField extends Field {
* The URI that the OAuth service should redirect to upon successful
* authentication.
*/
public OAuthCodeField(String authorizationEndpoint, String clientID,
public OAuthTokenField(String authorizationEndpoint, String clientID,
String redirectURI) {
// Init base field properties
super(PARAMETER_NAME, "GUAC_OAUTH_CODE");
super(PARAMETER_NAME, "GUAC_OAUTH_TOKEN");
// Build authorization URI from given values
try {
this.authorizationURI = authorizationEndpoint
+ "?scope=openid%20email%20profile"
+ "&response_type=code"
+ "&response_type=id_token"
+ "&client_id=" + URLEncoder.encode(clientID, "UTF-8")
+ "&redirect_uri=" + URLEncoder.encode(redirectURI, "UTF-8");
+ "&redirect_uri=" + URLEncoder.encode(redirectURI, "UTF-8")
+ "&nonce=" + UUID.randomUUID().toString();
}
// Java is required to provide UTF-8 support
@@ -84,7 +87,7 @@ public class OAuthCodeField extends Field {
}
/**
* Returns the full URI that this field should link to when a new code
* Returns the full URI that this field should link to when a new token
* needs to be obtained from the OAuth service.
*
* @return

153
extensions/guacamole-auth-openid/src/main/java/org/apache/guacamole/auth/oauth/token/TokenResponse.java
View File

@@ -1,153 +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.oauth.token;
import org.codehaus.jackson.annotate.JsonProperty;
/**
* The response produced from a successful request to the token endpoint of an
* OAuth service.
*/
public class TokenResponse {
/**
* An arbitrary access token which can be used for future requests against
* the API associated with the OAuth service.
*/
private String accessToken;
/**
* The type of token present. This will always be "Bearer".
*/
private String tokenType;
/**
* The number of seconds the access token will remain valid.
*/
private int expiresIn;
/**
* A JWT (JSON Web Token) which containing identity information which has
* been cryptographically signed.
*/
private String idToken;
/**
* Returns an arbitrary access token which can be used for future requests
* against the API associated with the OAuth service.
*
* @return
* An arbitrary access token provided by the OAuth service.
*/
@JsonProperty("access_token")
public String getAccessToken() {
return accessToken;
}
/**
* Sets the arbitrary access token which can be used for future requests
* against the API associated with the OAuth service.
*
* @param accessToken
* The arbitrary access token provided by the OAuth service.
*/
@JsonProperty("access_token")
public void setAccessToken(String accessToken) {
this.accessToken = accessToken;
}
/**
* Returns the type of token present in this response. This should always
* be "Bearer".
*
* @return
* The type of token present in this response.
*/
@JsonProperty("token_type")
public String getTokenType() {
return tokenType;
}
/**
* Sets the type of token present in this response. This should always be
* "Bearer".
*
* @param tokenType
* The type of token present in this response, which should be
* "Bearer".
*/
@JsonProperty("token_type")
public void setTokenType(String tokenType) {
this.tokenType = tokenType;
}
/**
* Returns the number of seconds the access token within this response will
* remain valid.
*
* @return
* The number of seconds the access token within this response will
* remain valid.
*/
@JsonProperty("expires_in")
public int getExpiresIn() {
return expiresIn;
}
/**
* Sets the number of seconds the access token within this response will
* remain valid.
*
* @param expiresIn
* The number of seconds the access token within this response will
* remain valid.
*/
@JsonProperty("expires_in")
public void setExpiresIn(int expiresIn) {
this.expiresIn = expiresIn;
}
/**
* Returns a JWT (JSON Web Token) containing identity information which has
* been cryptographically signed by the OAuth service.
*
* @return
* A JWT (JSON Web Token) containing identity information which has
* been cryptographically signed by the OAuth service.
*/
@JsonProperty("id_token")
public String getIdToken() {
return idToken;
}
/**
* Sets the JWT (JSON Web Token) containing identity information which has
* been cryptographically signed by the OAuth service.
*
* @param idToken
* A JWT (JSON Web Token) containing identity information which has
* been cryptographically signed by the OAuth service.
*/
@JsonProperty("id_token")
public void setIdToken(String idToken) {
this.idToken = idToken;
}
}

101
extensions/guacamole-auth-openid/src/main/java/org/apache/guacamole/auth/oauth/token/TokenService.java
View File

@@ -1,101 +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.oauth.token;
import com.google.inject.Inject;
import com.sun.jersey.api.client.Client;
import com.sun.jersey.api.client.UniformInterfaceException;
import com.sun.jersey.api.representation.Form;
import javax.ws.rs.core.MediaType;
import org.apache.guacamole.auth.oauth.AuthenticationProviderService;
import org.apache.guacamole.auth.oauth.conf.ConfigurationService;
import org.glyptodon.guacamole.GuacamoleException;
import org.glyptodon.guacamole.GuacamoleServerException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Provides relatively abstract means of producing authentication tokens from
* the codes received from OAuth services.
*/
public class TokenService {
/**
* Logger for this class.
*/
private final Logger logger = LoggerFactory.getLogger(AuthenticationProviderService.class);
/**
* Service for retrieving OAuth configuration information.
*/
@Inject
private ConfigurationService confService;
/**
* Jersey HTTP client.
*/
@Inject
private Client client;
/**
* Given an authorization code previously received from the OAuth service
* via the "code" parameter provided to the redirect URL, retrieves and
* returns an authentication token.
*
* @param code
* The value of the "code" parameter received from the OAuth service.
*
* @return
* The authentication roken response received from the OAuth service.
*
* @throws GuacamoleException
* If required properties within guacamole.properties cannot be read,
* or if an error occurs while contacting the OAuth service.
*/
public TokenResponse getTokenFromCode(String code)
throws GuacamoleException {
try {
// Generate POST data
Form form = new Form();
form.add("code", code);
form.add("client_id", confService.getClientID());
form.add("client_secret", confService.getClientSecret());
form.add("redirect_uri", confService.getRedirectURI());
form.add("grant_type", "authorization_code");
// POST code and client information to OAuth token endpoint
return client.resource(confService.getTokenEndpoint())
.type(MediaType.APPLICATION_FORM_URLENCODED_TYPE)
.accept(MediaType.APPLICATION_JSON_TYPE)
.post(TokenResponse.class, form);
}
// Log any failure reaching the OAuth service
catch (UniformInterfaceException e) {
logger.debug("POST to token endpoint failed.", e);
throw new GuacamoleServerException("Unable to POST to token endpoint.", e);
}
}
}

6
extensions/guacamole-auth-openid/src/main/java/org/apache/guacamole/auth/oauth/user/AuthenticatedUser.java
View File

@@ -20,9 +20,9 @@
package org.apache.guacamole.auth.oauth.user;
import com.google.inject.Inject;
import org.glyptodon.guacamole.net.auth.AbstractAuthenticatedUser;
import org.glyptodon.guacamole.net.auth.AuthenticationProvider;
import org.glyptodon.guacamole.net.auth.Credentials;
import org.apache.guacamole.net.auth.AbstractAuthenticatedUser;
import org.apache.guacamole.net.auth.AuthenticationProvider;
import org.apache.guacamole.net.auth.Credentials;
/**
* An OAuth-specific implementation of AuthenticatedUser, associating a

9
extensions/guacamole-auth-openid/src/main/resources/guac-manifest.json
View File

@@ -1,6 +1,6 @@
{
"guacamoleVersion" : "0.9.9",
"guacamoleVersion" : "0.9.9-incubating",
"name" : "OAuth Authentication Extension",
"namespace" : "guac-oauth",
@@ -11,11 +11,8 @@
"js" : [
"oauthModule.js",
"oauthController.js",
"oauthConfig.js"
],
"resources" : {
"oauthCodeField.html" : "text/html"
}
]
}

1
extensions/guacamole-auth-openid/src/main/resources/oauthCodeField.html
View File

@@ -1 +0,0 @@
<a href="{{field.authorizationURI}}">Log in using OAuth</a>

29
extensions/guacamole-auth-openid/src/main/resources/oauthConfig.js
View File

@@ -23,9 +23,32 @@
angular.module('guacOAuth').config(['formServiceProvider',
function guacOAuthConfig(formServiceProvider) {
// Define field for code from OAuth service
formServiceProvider.registerFieldType("GUAC_OAUTH_CODE", {
templateUrl : 'app/ext/guac-oauth/oauthCodeField.html'
// Define field for token from OAuth service
formServiceProvider.registerFieldType("GUAC_OAUTH_TOKEN", {
template : '',
controller : 'guacOAuthController',
module : 'guacOAuth'
});
}]);
/**
* Config block which augments the existing routing, providing special handling
* for the "id_token=" fragments provided by OpenID Connect.
*/
angular.module('index').config(['$routeProvider',
function indexRouteConfig($routeProvider) {
// Transform "/#/id_token=..." to "/#/?id_token=..."
$routeProvider.when('/id_token=:response', {
template : '',
controller : ['$location', function reroute($location) {
var params = $location.path().substring(1);
$location.url('/');
$location.search(params);
}]
});
}]);

30
extensions/guacamole-auth-openid/src/main/resources/oauthController.js Normal file
View File

@@ -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_OAUTH_TOKEN" field which simply redirects the user
* immediately to the authorization URI.
*/
angular.module('guacOAuth').controller('guacOAuthController', ['$scope',
function guacOAuthController($scope) {
// Redirect to authorization URI
window.location = $scope.field.authorizationURI;
}]);