GUACAMOLE-210: Add stub OAuthAuthenticationProvider.

extensions/guacamole-auth-openid/src/main/java/org/apache/guacamole/auth/oauth/OAuthAuthenticationProvider.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.oauth;
+
+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.glyptodon.guacamole.net.auth.credentials.CredentialsInfo;
+import org.glyptodon.guacamole.net.auth.credentials.GuacamoleInvalidCredentialsException;
+
+/**
+ * Guacamole authentication backend which authenticates users using an
+ * arbitrary external system implementing OAuth. No storage for connections is
+ * provided - only authentication. Storage must be provided by some other
+ * extension.
+ */
+public class OAuthAuthenticationProvider implements AuthenticationProvider {
+
+    @Override
+    public String getIdentifier() {
+        return "oauth";
+    }
+
+    @Override
+    public AuthenticatedUser authenticateUser(Credentials credentials)
+            throws GuacamoleException {
+
+        // STUB
+        throw new GuacamoleInvalidCredentialsException(
+            "Invalid login.",
+            CredentialsInfo.USERNAME_PASSWORD
+        );
+
+    }
+
+    @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) throws GuacamoleException {
+
+        // No update necessary
+        return context;
+
+    }
+
+}

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

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+{
+
+    "guacamoleVersion" : "0.9.9",
+
+    "name"      : "OAuth Authentication Extension",
+    "namespace" : "guac-oauth",
+
+    "authProviders" : [
+        "org.apache.guacamole.auth.oauth.OAuthAuthenticationProvider"
+    ]
+
+}