launch analytics

src/Emitter.Runtime/Providers/AnalyticsProvider.cs

@@ -0,0 +1,71 @@
+#region Copyright (c) 2009-2016 Misakai Ltd.
+/*************************************************************************
+* This program is free software: you can redistribute it and/or modify
+* it under the terms of the GNU Affero General Public License as
+* published by the Free Software Foundation, either version 3 of the
+* License, or(at your option) any later version.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
+* GNU Affero General Public License for more details.
+*
+* You should have received a copy of the GNU Affero General Public License
+* along with this program.If not, see<http://www.gnu.org/licenses/>.
+*************************************************************************/
+#endregion Copyright (c) 2009-2016 Misakai Ltd.
+
+using System;
+using System.Linq;
+using Emitter.Network.Http;
+
+namespace Emitter.Providers
+{
+    /// <summary>
+    /// Represents an analytics provider for tracking various events.
+    /// </summary>
+    public abstract class AnalyticsProvider : Provider
+    {
+        /// <summary>
+        /// Tracks an event.
+        /// </summary>
+        /// <param name="eventCategory">The event category.</param>
+        /// <param name="eventName">The name of the event.</param>
+        public abstract void Track(string eventCategory, string eventName);
+    }
+
+    /// <summary>
+    /// Represents an implementation of an analytics provider, where the data is sent
+    /// to meta.emitter.io/v1/collect endpoint. This is fed into Google Analytics
+    /// for simple statistics gathering.
+    /// </summary>
+    public class EmitterAnalyticsProvider : AnalyticsProvider
+    {
+        /// <summary>
+        /// The collection endpoint.
+        /// </summary>
+        private const string Endpoint = "http://meta.emitter.io/v1/collect";
+
+        /// <summary>
+        /// Tracks an event.
+        /// </summary>
+        /// <param name="eventCategory">The event category.</param>
+        /// <param name="eventName">The name of the event.</param>
+        public override void Track(string eventCategory, string eventName)
+        {
+            try
+            {
+                // Get the fingerprint for this machine
+                var uid = Service.Providers.Resolve<AddressProvider>().GetFingerprint();
+                var url = string.Format("{0}?uid={1}&ec={2}&en={3}", Endpoint, uid, eventCategory, eventName);
+
+                // Fire and forget
+                HttpUtility.GetAsync(url, 5000).Forget();
+            }
+            catch
+            {
+                // Ignore if the tracking failed.
+            }
+        }
+    }
+}

src/Emitter.Runtime/Providers/DefaultProviders.cs

@@ -34,6 +34,7 @@ internal static class DefaultProviders
             {typeof(CorsProvider), typeof(DefaultCorsProvider)},
             {typeof(AddressProvider), typeof(DefaultAddressProvider)},
             {typeof(HealthProvider), typeof(DefaultHealthProvider)},
+            {typeof(AnalyticsProvider), typeof(EmitterAnalyticsProvider)},
         };
 
         /// <summary>

src/Emitter.Runtime/Service.cs

@@ -467,6 +467,10 @@ public static void Listen(params IBinding[] bindings)
             Http.Register(new HandleKeyGen());
             Http.Register(new DebugHttp());
 
+            // Send analytics about this server launch. This is to gather global statistics about the number
+            // of unique machines that use emitter.
+            Providers.Resolve<AnalyticsProvider>().Track("emitter", "launch");
+
             // Timer scheduler slice loop
             while (IsRunning)
             {