Add regression test for llReleaseUrl() (and for llRequestUrl)

Forgot to add file for llRequestUrl() test in commit b8a7c8b

OpenSim/Region/CoreModules/Scripting/LSLHttp/UrlModule.cs

@@ -114,17 +114,22 @@ namespace OpenSim.Region.CoreModules.Scripting.LSLHttp
         /// </summary>
         private Dictionary<string, UrlData> m_UrlMap = new Dictionary<string, UrlData>();
 
-        /// <summary>
-        /// Maximum number of external urls that can be set up by this module.
-        /// </summary>
-        private int m_TotalUrls = 100;
-
         private uint m_HttpsPort = 0;
         private IHttpServer m_HttpServer = null;
         private IHttpServer m_HttpsServer = null;
 
         public string ExternalHostNameForLSL { get; private set; }
 
+        /// <summary>
+        /// The default maximum number of urls
+        /// </summary>
+        public const int DefaultTotalUrls = 100;
+
+        /// <summary>
+        /// Maximum number of external urls that can be set up by this module.
+        /// </summary>
+        public int TotalUrls { get; set; }
+
         public Type ReplaceableInterface 
         {
             get { return null; }
@@ -155,7 +160,9 @@ namespace OpenSim.Region.CoreModules.Scripting.LSLHttp
             IConfig llFunctionsConfig = config.Configs["LL-Functions"];
 
             if (llFunctionsConfig != null)
-                m_TotalUrls = llFunctionsConfig.GetInt("max_external_urls_per_simulator", m_TotalUrls);
+                TotalUrls = llFunctionsConfig.GetInt("max_external_urls_per_simulator", DefaultTotalUrls);
+            else
+                TotalUrls = DefaultTotalUrls;
         }
 
         public void PostInitialise()
@@ -206,7 +213,7 @@ namespace OpenSim.Region.CoreModules.Scripting.LSLHttp
 
             lock (m_UrlMap)
             {
-                if (m_UrlMap.Count >= m_TotalUrls)
+                if (m_UrlMap.Count >= TotalUrls)
                 {
                     engine.PostScriptEvent(itemID, "http_request", new Object[] { urlcode.ToString(), "URL_REQUEST_DENIED", "" });
                     return urlcode;
@@ -251,7 +258,7 @@ namespace OpenSim.Region.CoreModules.Scripting.LSLHttp
 
             lock (m_UrlMap)
             {
-                if (m_UrlMap.Count >= m_TotalUrls)
+                if (m_UrlMap.Count >= TotalUrls)
                 {
                     engine.PostScriptEvent(itemID, "http_request", new Object[] { urlcode.ToString(), "URL_REQUEST_DENIED", "" });
                     return urlcode;
@@ -349,7 +356,7 @@ namespace OpenSim.Region.CoreModules.Scripting.LSLHttp
         public int GetFreeUrls()
         {
             lock (m_UrlMap)
-                return m_TotalUrls - m_UrlMap.Count;
+                return TotalUrls - m_UrlMap.Count;
         }
 
         public void ScriptRemoved(UUID itemID)

OpenSim/Region/ScriptEngine/Shared/Tests/LSL_ApiHttpTests.cs

@@ -0,0 +1,250 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Net;
+using System.Reflection;
+using System.Text;
+using log4net;
+using Nini.Config;
+using NUnit.Framework;
+using OpenMetaverse;
+using OpenSim.Framework;
+using OpenSim.Framework.Servers;
+using OpenSim.Framework.Servers.HttpServer;
+using OpenSim.Region.CoreModules.Scripting.LSLHttp;
+using OpenSim.Region.Framework.Scenes;
+using OpenSim.Region.ScriptEngine.Shared;
+using OpenSim.Region.ScriptEngine.Shared.Api;
+using OpenSim.Region.ScriptEngine.Shared.ScriptBase;
+using OpenSim.Services.Interfaces;
+using OpenSim.Tests.Common;
+using OpenSim.Tests.Common.Mock;
+
+namespace OpenSim.Region.ScriptEngine.Shared.Tests
+{
+    /// <summary>
+    /// Tests for HTTP related functions in LSL
+    /// </summary>
+    [TestFixture]
+    public class LSL_ApiHttpTests : OpenSimTestCase
+    {
+        private Scene m_scene;
+        private MockScriptEngine m_engine;
+        private UrlModule m_urlModule;
+
+        private TaskInventoryItem m_scriptItem;
+        private LSL_Api m_lslApi;
+
+        [TestFixtureSetUp]
+        public void TestFixtureSetUp()
+        {
+            // Don't allow tests to be bamboozled by asynchronous events.  Execute everything on the same thread.
+            Util.FireAndForgetMethod = FireAndForgetMethod.RegressionTest;
+        }
+
+        [TestFixtureTearDown]
+        public void TestFixureTearDown()
+        {
+            // We must set this back afterwards, otherwise later tests will fail since they're expecting multiple
+            // threads.  Possibly, later tests should be rewritten so none of them require async stuff (which regression
+            // tests really shouldn't).
+            Util.FireAndForgetMethod = Util.DefaultFireAndForgetMethod;
+        }
+
+        [SetUp]
+        public override void SetUp()
+        {
+            base.SetUp();
+
+            // This is an unfortunate bit of clean up we have to do because MainServer manages things through static
+            // variables and the VM is not restarted between tests.
+            uint port = 9999;
+            MainServer.RemoveHttpServer(port);
+
+            BaseHttpServer server = new BaseHttpServer(port, false, 0, "");
+            MainServer.AddHttpServer(server);
+            MainServer.Instance = server;
+
+            server.Start();
+
+            m_engine = new MockScriptEngine();
+            m_urlModule = new UrlModule();
+
+            m_scene = new SceneHelpers().SetupScene();
+            SceneHelpers.SetupSceneModules(m_scene, new IniConfigSource(), m_engine, m_urlModule);
+
+            SceneObjectGroup so = SceneHelpers.AddSceneObject(m_scene);
+            m_scriptItem = TaskInventoryHelpers.AddScript(m_scene, so.RootPart);
+
+            // This is disconnected from the actual script - the mock engine does not set up any LSL_Api atm.
+            // Possibly this could be done and we could obtain it directly from the MockScriptEngine.
+            m_lslApi = new LSL_Api();
+            m_lslApi.Initialize(m_engine, so.RootPart, m_scriptItem, null);
+        }
+
+        [TearDown]
+        public void TearDown()
+        {
+            MainServer.Instance.Stop();
+        }       
+
+        [Test]
+        public void TestLlReleaseUrl()
+        {
+            TestHelpers.InMethod();
+
+            m_lslApi.llRequestURL();
+            string returnedUri = m_engine.PostedEvents[m_scriptItem.ItemID][0].Params[2].ToString();
+
+            {
+                // Check that the initial number of URLs is correct
+                Assert.That(m_lslApi.llGetFreeURLs().value, Is.EqualTo(m_urlModule.TotalUrls - 1));
+            }
+
+            {
+                // Check releasing a non-url
+                m_lslApi.llReleaseURL("GARBAGE");
+                Assert.That(m_lslApi.llGetFreeURLs().value, Is.EqualTo(m_urlModule.TotalUrls - 1));
+            }
+
+            {
+                // Check releasing a non-existing url
+                m_lslApi.llReleaseURL("http://example.com");
+                Assert.That(m_lslApi.llGetFreeURLs().value, Is.EqualTo(m_urlModule.TotalUrls - 1));
+            }
+
+            {
+                // Check URL release
+                m_lslApi.llReleaseURL(returnedUri);
+                Assert.That(m_lslApi.llGetFreeURLs().value, Is.EqualTo(m_urlModule.TotalUrls));
+
+                HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(returnedUri);
+
+                bool gotExpectedException = false;
+
+                try
+                {
+                    using (HttpWebResponse webResponse = (HttpWebResponse)webRequest.GetResponse())
+                    {}
+                }
+                catch (WebException e)
+                {
+                    using (HttpWebResponse response = (HttpWebResponse)e.Response)
+                        gotExpectedException = response.StatusCode == HttpStatusCode.NotFound;
+                }
+
+                Assert.That(gotExpectedException, Is.True);
+            }
+
+            {
+                // Check releasing the same URL again
+                m_lslApi.llReleaseURL(returnedUri);
+                Assert.That(m_lslApi.llGetFreeURLs().value, Is.EqualTo(m_urlModule.TotalUrls));
+            }
+        }
+
+        [Test]
+        public void TestLlRequestUrl()
+        {
+            TestHelpers.InMethod();
+
+            string requestId = m_lslApi.llRequestURL();
+            Assert.That(requestId, Is.Not.EqualTo(UUID.Zero.ToString()));
+            string returnedUri;
+
+            {
+                // Check that URL is correctly set up
+                Assert.That(m_lslApi.llGetFreeURLs().value, Is.EqualTo(m_urlModule.TotalUrls - 1));
+
+                Assert.That(m_engine.PostedEvents.ContainsKey(m_scriptItem.ItemID));
+
+                List<EventParams> events = m_engine.PostedEvents[m_scriptItem.ItemID];
+                Assert.That(events.Count, Is.EqualTo(1));
+                EventParams eventParams = events[0];
+                Assert.That(eventParams.EventName, Is.EqualTo("http_request"));
+
+                UUID returnKey;
+                string rawReturnKey = eventParams.Params[0].ToString();
+                string method = eventParams.Params[1].ToString();
+                returnedUri = eventParams.Params[2].ToString();
+
+                Assert.That(UUID.TryParse(rawReturnKey, out returnKey), Is.True);
+                Assert.That(method, Is.EqualTo(ScriptBaseClass.URL_REQUEST_GRANTED));
+                Assert.That(Uri.IsWellFormedUriString(returnedUri, UriKind.Absolute), Is.True);
+            }
+
+            {
+                // Check that request to URL works.
+                string testResponse = "Hello World";
+
+                m_engine.ClearPostedEvents();                
+                m_engine.PostEventHook 
+                    += (itemId, evp) => m_lslApi.llHTTPResponse(evp.Params[0].ToString(), 200, testResponse);
+
+//                Console.WriteLine("Trying {0}", returnedUri);
+                HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(returnedUri);
+
+                AssertHttpResponse(returnedUri, testResponse);
+
+                Assert.That(m_engine.PostedEvents.ContainsKey(m_scriptItem.ItemID));
+
+                List<EventParams> events = m_engine.PostedEvents[m_scriptItem.ItemID];
+                Assert.That(events.Count, Is.EqualTo(1));
+                EventParams eventParams = events[0];
+                Assert.That(eventParams.EventName, Is.EqualTo("http_request"));
+
+                UUID returnKey;
+                string rawReturnKey = eventParams.Params[0].ToString();
+                string method = eventParams.Params[1].ToString();
+                string body = eventParams.Params[2].ToString();
+
+                Assert.That(UUID.TryParse(rawReturnKey, out returnKey), Is.True);
+                Assert.That(method, Is.EqualTo("GET"));
+                Assert.That(body, Is.EqualTo(""));
+            }
+        }
+
+        private void AssertHttpResponse(string uri, string expectedResponse)
+        {
+            HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(uri);
+
+            using (HttpWebResponse webResponse = (HttpWebResponse)webRequest.GetResponse())
+            {
+                using (Stream stream = webResponse.GetResponseStream())
+                {
+                    using (StreamReader reader = new StreamReader(stream))
+                    {
+                        Assert.That(reader.ReadToEnd(), Is.EqualTo(expectedResponse));
+                    }
+                }
+            }
+        }
+    }
+}