Github user mike-jumper commented on a diff in the pull request:
https://github.com/apache/guacamole-client/pull/337#discussion_r232135489
--- Diff:
extensions/guacamole-auth-ldap/src/main/java/org/apache/guacamole/auth/ldap/ObjectQueryService.java
---
@@ -0,0 +1,326 @@
+/*
+ * 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.ldap;
+
+import com.google.inject.Inject;
+import com.novell.ldap.LDAPAttribute;
+import com.novell.ldap.LDAPConnection;
+import com.novell.ldap.LDAPEntry;
+import com.novell.ldap.LDAPException;
+import com.novell.ldap.LDAPReferralException;
+import com.novell.ldap.LDAPSearchResults;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.function.Function;
+import org.apache.guacamole.GuacamoleException;
+import org.apache.guacamole.GuacamoleServerException;
+import org.apache.guacamole.net.auth.Identifiable;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Service for executing queries against an LDAP directory intended to
retrieve
+ * Guacamole-related objects. Referrals are automatically handled.
Convenience
+ * functions are provided for generating the LDAP queries typically
required
+ * for retrieving Guacamole objects, as well as for converting the results
of a
+ * query into a Map of Guacamole objects.
--- End diff --
I'll try to pick a favorite.
---