[FEATURE] Add telemetry CAT-66

LearnositySDK/Request/Init.cs

@@ -1,9 +1,9 @@
 using System;
 using System.Collections.Generic;
-using System.Linq;
 using System.Text;
 using LearnositySDK.Utils;
 using System.Web;
+using System.Runtime.InteropServices;
 
 namespace LearnositySDK.Request
 {
@@ -77,6 +77,11 @@ public class Init
         /// </summary>
         private string algorithm;
 
+        /// <summary>
+        /// Determines if telemetry is enabled; default is true
+        /// </summary>
+        private static bool telemetryEnabled = true;
+
         /// <summary>
         /// Instantiate this class with all security and request data. It will be used to create a signature.
         /// </summary>
@@ -153,6 +158,7 @@ private void Initialize(string service, JsonObject securityPacket, string secret
             //try
             //{
                 this.validate(this.service, ref this.securityPacket, this.secret, this.requestPacket, this.action);
+                this.addTelemetryData();
                 this.requestString = this.generateRequestString();
                 this.setServiceOptions();
                 this.securityPacket.set("signature", this.generateSignature());
@@ -180,7 +186,7 @@ private string generateRequestString()
             {
                 throw new Exception("Invalid data, please check you request packet.");
             }
-            
+
             return request;
         }
 
@@ -191,7 +197,7 @@ private string generateRequestString()
         /// - the `action` value if passed
         /// </summary>
         /// <returns>A signature hash for the request authentication</returns>
-        private string generateSignature()
+        public string generateSignature()
         {
             List<string> signatureList = new List<string>();
             string temp = null;
@@ -256,7 +262,7 @@ public string generate()
                     {
                         return this.generateData(output);
                     }
-                    else if(this.service == "assess")
+                    else if (this.service == "assess")
                     {
                         output = this.generateAssess(output);
                     }
@@ -277,7 +283,7 @@ public string generate()
                     // do nothing
                     break;
             }
-            
+
             return output.toJson();
         }
 
@@ -291,7 +297,7 @@ private string generateData(JsonObject output)
             StringBuilder sb = new StringBuilder();
             JsonObject obj = null;
             string str = "";
-            
+
             obj = output.getJsonObject("security");
             if (!Tools.empty(obj))
             {
@@ -380,7 +386,7 @@ private void setServiceOptions()
                 case "assess":
                     // fall-through
                 case "questions":
-                    
+
                     this.signRequestData = false;
 
                     if (this.service == "assess" && Tools.array_key_exists("questionsApiActivity", this.requestPacket))
@@ -456,18 +462,21 @@ private void setServiceOptions()
                     this.signRequestData = false;
 
                     JsonObject requestPackageUsers = this.requestPacket.getJsonObject("users");
-                    if (requestPackageUsers != null) {
-                        string[] users =  requestPackageUsers.getValuesArray();
-                        if (users != null && users.Length > 0) {
+                    if (requestPackageUsers != null)
+                    {
+                        string[] users = requestPackageUsers.getValuesArray();
+                        if (users != null && users.Length > 0)
+                        {
                             hashedUsers = new JsonObject();
-                            for (int i = 0; i < users.Length; i++) {
+                            for (int i = 0; i < users.Length; i++)
+                            {
                                 string user_id = users[i];
                                 hashedUsers.set(user_id, Tools.hash(this.algorithm, user_id + this.secret));
                             }
                             this.requestPacket.set("users", hashedUsers);
                         }
                     }
-  
+
                     break;
                 default:
                     // do nothing
@@ -518,5 +527,111 @@ public void validate(string service, ref JsonObject securityPacket, string secre
                 throw new Exception("The `secret` argument must be a valid string");
             }
         }
+
+        /// <summary>
+        /// Adds a meta field with SDK information in it to the requestPacket
+        /// </summary>
+        public void addTelemetryData()
+        {
+            if (this.isTelemetryEnabled())
+            {
+                JsonObject meta;
+                if (this.requestPacket.getJsonObject("meta") != null)
+                {
+                    meta = this.requestPacket.getJsonObject("meta");
+                }
+                else
+                {
+                    meta = new JsonObject();
+                }
+
+                meta.set("sdk", this.getSdkMeta());
+                this.requestPacket.set("meta", meta);
+            }
+        }
+
+        public bool isTelemetryEnabled()
+        {
+            return telemetryEnabled;
+        }
+
+        public JsonObject getSdkMeta()
+        {
+            JsonObject sdkMeta = new JsonObject();
+            sdkMeta.set("version", this.getSdkVersion());
+            sdkMeta.set("lang", "asp.net");
+            sdkMeta.set("lang_version", this.getLanguageVersion());
+            sdkMeta.set("platform", this.getPlatform());
+            sdkMeta.set("platform_version", this.getPlatformVersion());
+
+            return sdkMeta;
+        }
+
+        /// <summary>
+        /// Returns the version number of ASP.NET
+        /// </summary>
+        /// <returns></returns>
+        public string getLanguageVersion()
+        {
+            return Environment.Version.ToString();
+        }
+
+        /// <summary>
+        /// Returns the name of the platform the code is running on
+        /// </summary>
+        /// <returns></returns>
+        public string getPlatform()
+        {
+            if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
+            {
+                return "darwin";
+            }
+
+            if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
+            {
+                return "win";
+            }
+
+            if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
+            {
+                return "linux";
+            }
+
+            return Environment.OSVersion.Platform.ToString();
+        }
+
+        /// <summary>
+        /// Returns the version number of the platform the code is running on
+        /// </summary>
+        /// <returns></returns>
+        public string getPlatformVersion()
+        {
+            var os = Environment.OSVersion;
+            return string.Concat(os.Version.Major, '.', os.Version.Minor);
+        }
+
+        /// <summary>
+        /// Extracts the version number of this SDK from the project meta data
+        /// </summary>
+        /// <returns>The version number</returns>
+        public string getSdkVersion()
+        {
+            return GetType().Assembly.GetName().Version.ToString();
+        }
+
+        /// <summary>
+        /// We use telemetry to enable better support and feature planning.
+        /// It will not interfere with any usage.
+        /// However, it is not advised to disable it.
+        /// </summary>
+        public static void disableTelemetry()
+        {
+            telemetryEnabled = false;
+        }
+
+        public static void enableTelemetry()
+        {
+            telemetryEnabled = true;
+        }
     }
 }

LearnositySDKIntegrationTests/LearnositySDKIntegrationTests.cs

@@ -1,5 +1,6 @@
 using System;
 using Xunit;
+using System.IO;
 using LearnositySDK.Utils;
 using LearnositySDK.Request;
 
@@ -69,5 +70,147 @@ private static string BuildDataAPIBaseUrl(string env, string region, string vers
 
             return "https://data" + regionDomain + envDomain + ".learnosity.com/" + versionPath;
         }
+
+        [Fact]
+        public void InitGeneratesExactSameSignature()
+        {
+            string action = "get";
+
+            JsonObject security = this.generateSecurityObject();
+
+            JsonObject request = new JsonObject();
+            request.set("limit", 100);
+
+            Init.disableTelemetry();
+            Init init = new Init("data", security, this.consumerSecret, request, action);
+
+            // Assert signature is still the same
+            Assert.Equal(
+                init.generateSignature(),
+                "e1eae0b86148df69173cb3b824275ea73c9c93967f7d17d6957fcdd299c8a4fe"
+            );
+
+            // Assert telemetry is turned off
+            Assert.False(init.isTelemetryEnabled());
+            Init.enableTelemetry();
+        }
+
+        [Fact]
+        public void InitGenerateBuildsNonEmptyRequest()
+        {
+            string action = "get";
+
+            JsonObject security = this.generateSecurityObject();
+
+            JsonObject request = new JsonObject();
+            request.set("page", 1);
+
+            Init init = new Init("data", security, this.consumerSecret, request, action);
+            string generatedString = init.generate();
+
+            // Assert generated string is not empty
+            Assert.NotEmpty(generatedString);
+
+            // Assert telemetry is turned on
+            Assert.True(init.isTelemetryEnabled());
+        }
+
+        [Fact]
+        public void EnabledTelemetryAddsSdkField()
+        {
+            string action = "get";
+            JsonObject security = this.generateSecurityObject();
+
+            JsonObject request = new JsonObject();
+            request.set("page", 1);
+
+            Init init = new Init("data", security, this.consumerSecret, request, action);
+            string generatedString = init.generate();
+
+            Assert.Contains("meta", generatedString);
+            Assert.Contains("sdk", generatedString);
+        }
+
+        [Fact]
+        public void EnabledTelemetryPreservesOtherMetaProps()
+        {
+            string action = "get";
+            JsonObject security = this.generateSecurityObject();
+
+            JsonObject metaField = new JsonObject();
+            metaField.set("test_key_string", "test-string");
+            metaField.set("test_key_integer", 12345);
+
+            JsonObject request = new JsonObject();
+            request.set("page", 1);
+            request.set("meta", metaField);
+
+            Init init = new Init("data", security, this.consumerSecret, request, action);
+            string generatedString = init.generate();
+
+            Assert.Contains("meta", generatedString);
+            Assert.Contains("sdk", generatedString);
+            Assert.Contains("test_key_string", generatedString);
+            Assert.Contains("test_key_integer", generatedString);
+        }
+
+        [Fact]
+        public void DisabledTelemetryPreservesEmptyProps()
+        {
+            string action = "get";
+            JsonObject security = this.generateSecurityObject();
+
+            Init.disableTelemetry();
+
+            JsonObject request = new JsonObject();
+            request.set("page", 1);
+
+            Init init = new Init("data", security, this.consumerSecret, request, action);
+            string generatedString = init.generate();
+
+            Assert.DoesNotContain("meta", generatedString);
+            Assert.DoesNotContain("sdk", generatedString);
+
+            Init.enableTelemetry();
+        }
+
+        [Fact]
+        public void DisabledTelemetryPreservesFilledProps()
+        {
+            string action = "get";
+            JsonObject security = this.generateSecurityObject();
+
+            Init.disableTelemetry();
+
+            JsonObject metaField = new JsonObject();
+            metaField.set("test_key_string", "test-string");
+            metaField.set("test_key_integer", 12345);
+
+            JsonObject request = new JsonObject();
+            request.set("page", 1);
+            request.set("meta", metaField);
+
+            Init init = new Init("data", security, this.consumerSecret, request, action);
+            string generatedString = init.generate();
+
+            Assert.Contains("meta", generatedString);
+            Assert.DoesNotContain("sdk", generatedString);
+            Assert.Contains("test_key_string", generatedString);
+            Assert.Contains("test_key_integer", generatedString);
+
+            Init.enableTelemetry();
+        }
+
+        private JsonObject generateSecurityObject()
+        {
+            string timestamp = "20140626-0528";
+
+            JsonObject security = new JsonObject();
+            security.set("consumer_key", this.consumerKey);
+            security.set("domain", this.domain);
+            security.set("timestamp", timestamp);
+
+            return security;
+        }
     }
 }