Allow lists to be embedded in query strings

OpenSim/Server/Base/ServerUtils.cs

@@ -180,8 +180,32 @@ namespace OpenSim.Server.Base
                 if (elems.Length > 1)
                     value = System.Web.HttpUtility.UrlDecode(elems[1]);
 
+                if (name.EndsWith("[]"))
+                {
+                    if (result.ContainsKey(name))
+                    {
+                        if (!(result[name] is List<string>))
+                            continue;
+
+                        List<string> l = (List<string>)result[name];
+
+                        l.Add(value);
+                    }
+                    else
+                    {
+                        List<string> newList = new List<string>();
+
+                        newList.Add(value);
+
+                        result[name] = newList;
+                    }
+                }
+                else
+                {
+                    if (!result.ContainsKey(name))
                         result[name] = value;
                 }
+            }
 
             return result;
         }
@@ -190,9 +214,27 @@ namespace OpenSim.Server.Base
         {
             string qstring = String.Empty;
 
+            string part;
+
             foreach (KeyValuePair<string, object> kvp in data)
             {
-                string part;
+                if (kvp.Value is List<string>)
+                {
+                    List<string> l = (List<String>)kvp.Value;
+
+                    foreach (string s in l)
+                    {
+                        part = System.Web.HttpUtility.UrlEncode(kvp.Key) +
+                                "[]=" + System.Web.HttpUtility.UrlEncode(s);
+
+                        if (qstring != String.Empty)
+                            qstring += "&";
+
+                        qstring += part;
+                    }
+                }
+                else
+                {
                     if (kvp.Value.ToString() != String.Empty)
                     {
                         part = System.Web.HttpUtility.UrlEncode(kvp.Key) +
@@ -208,6 +250,7 @@ namespace OpenSim.Server.Base
 
                     qstring += part;
                 }
+            }
 
             return qstring;
         }