GUACAMOLE-1629: Add configuration properties and associated translations.

extensions/guacamole-vault/modules/guacamole-vault-base/src/main/java/org/apache/guacamole/vault/conf/VaultAttributeService.java

@@ -0,0 +1,40 @@
+/*
+ * 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.vault.conf;
+
+import java.util.Collection;
+
+import org.apache.guacamole.form.Form;
+
+/**
+ * A service that exposes attributes for the admin UI, specific to the vault
+ * implementation. Any vault implementation will need to expose the attributes
+ * necessary for that implementation.
+ */
+public interface VaultAttributeService {
+
+    /**
+     * Return all connection group attributes to be exposed through the admin UI.
+     *
+     * @return
+     *     All connection group attributes to be exposed through the admin UI.
+     */
+    public Collection<Form> getConnectionGroupAttributes();
+}

extensions/guacamole-vault/modules/guacamole-vault-base/src/main/java/org/apache/guacamole/vault/user/VaultUserContext.java

@@ -22,12 +22,15 @@ package org.apache.guacamole.vault.user;
 import com.google.inject.Inject;
 import com.google.inject.assistedinject.Assisted;
 import com.google.inject.assistedinject.AssistedInject;
+
+import java.util.Collection;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.Future;
 import org.apache.guacamole.GuacamoleException;
 import org.apache.guacamole.GuacamoleServerException;
+import org.apache.guacamole.form.Form;
 import org.apache.guacamole.net.auth.Connection;
 import org.apache.guacamole.net.auth.ConnectionGroup;
 import org.apache.guacamole.net.auth.TokenInjectingUserContext;
@@ -35,6 +38,7 @@ import org.apache.guacamole.net.auth.UserContext;
 import org.apache.guacamole.protocol.GuacamoleConfiguration;
 import org.apache.guacamole.token.GuacamoleTokenUndefinedException;
 import org.apache.guacamole.token.TokenFilter;
+import org.apache.guacamole.vault.conf.VaultAttributeService;
 import org.apache.guacamole.vault.conf.VaultConfigurationService;
 import org.apache.guacamole.vault.secret.VaultSecretService;
 import org.slf4j.Logger;
@@ -121,6 +125,13 @@ public class VaultUserContext extends TokenInjectingUserContext {
     @Inject
     private VaultSecretService secretService;
 
+    /**
+     * Service for retrieving any custom attributes defined for the
+     * current vault implementation.
+     */
+    @Inject
+    private VaultAttributeService attributeService;
+
     /**
      * Creates a new VaultUserContext which automatically injects tokens
      * containing values of secrets retrieved from a vault. The given
@@ -403,4 +414,9 @@ public class VaultUserContext extends TokenInjectingUserContext {
 
     }
 
+    @Override
+    public Collection<Form> getConnectionGroupAttributes() {
+        return attributeService.getConnectionGroupAttributes();
+    }
+
 }