Working on web services...

2 files changed, 206 insertions, 291 deletions

diff --git a/Software/Visual_Studio/Web/Tango.MachineService/Controllers/SynchronizationController.cs b/Software/Visual_Studio/Web/Tango.MachineService/Controllers/SynchronizationController.cs
index 5c5a13c4e..304ea34f2 100644
--- a/Software/Visual_Studio/Web/Tango.MachineService/Controllers/SynchronizationController.cs
+++ b/Software/Visual_Studio/Web/Tango.MachineService/Controllers/SynchronizationController.cs
@@ -10,6 +10,7 @@ using System.IO;
 using System.Linq;
 using System.Net;
 using System.Net.Http;
+using System.Security.Authentication;
 using System.Threading.Tasks;
 using System.Web.Hosting;
 using System.Web.Http;
@@ -30,113 +31,103 @@ using Tango.Synchronization.Remote;
 
 namespace Tango.MachineService.Controllers
 {
-    public class SynchronizationController : ApiController
+    public class SynchronizationController : ProtoController
     {
-        private LogManager logManager = LogManager.Default;
+        ///// <summary>
+        ///// Expects a DB synchronization request from a remote machine and returns the synchronized version of the machine database.
+        ///// </summary>
+        ///// <param name="request">The request.</param>
+        ///// <returns></returns>
+        //[HttpPost]
+        //public SynchronizeDBResponse Synchronize(SynchronizeDBRequest request)
+        //{
+        //    var tempFolder = TemporaryManager.Default.CreateFolder();
 
-        /// <summary>
-        /// Expects a DB synchronization request from a remote machine and returns the synchronized version of the machine database.
-        /// </summary>
-        /// <param name="request">The request.</param>
-        /// <returns></returns>
-        [HttpPost]
-        public SynchronizeDBResponse Synchronize(SynchronizeDBRequest request)
-        {
-            var tempFolder = TemporaryManager.Default.CreateFolder();
+        //    try
+        //    {
+        //        //File path for the reflected remote data base SQLite.
+        //        String masterSQLiteFile = Path.Combine(tempFolder, "Remote.db");
+        //        //File path for the received machine SQLite db.
+        //        String slaveSQLiteFile = Path.Combine(tempFolder, "Local.db");
 
-            try
-            {
-                //File path for the reflected remote data base SQLite.
-                String masterSQLiteFile = Path.Combine(tempFolder, "Remote.db");
-                //File path for the received machine SQLite db.
-                String slaveSQLiteFile = Path.Combine(tempFolder, "Local.db");
+        //        //Save the machine db to file.
+        //        File.WriteAllBytes(slaveSQLiteFile, request.LocalDB.ToByteArray());
 
-                //Save the machine db to file.
-                File.WriteAllBytes(slaveSQLiteFile, request.LocalDB.ToByteArray());
+        //        //Copy an SQLite db template.
+        //        File.Copy(HostingEnvironment.MapPath(@"~/App_Data/Tango.db"), masterSQLiteFile);
 
-                //Copy an SQLite db template.
-                File.Copy(HostingEnvironment.MapPath(@"~/App_Data/Tango.db"), masterSQLiteFile);
+        //        //Synchronize the SQL Server db with the new SQLite template. (Overwrite basically)
+        //        RemoteDBSynchronizer.Synchronize(masterSQLiteFile, request.SerialNumber, true);
 
-                //Synchronize the SQL Server db with the new SQLite template. (Overwrite basically)
-                RemoteDBSynchronizer.Synchronize(masterSQLiteFile, request.SerialNumber, true);
+        //        //Synchronize the received machine db with the filled template.
+        //        LocalDBSynchronizer.Synchronize(masterSQLiteFile, slaveSQLiteFile);
 
-                //Synchronize the received machine db with the filled template.
-                LocalDBSynchronizer.Synchronize(masterSQLiteFile, slaveSQLiteFile);
+        //        //Send the synchronized machine db to the machine to the machine.
+        //        SynchronizeDBResponse response = new SynchronizeDBResponse();
+        //        response.RemoteDB = ByteString.CopyFrom(File.ReadAllBytes(slaveSQLiteFile));
 
-                //Send the synchronized machine db to the machine to the machine.
-                SynchronizeDBResponse response = new SynchronizeDBResponse();
-                response.RemoteDB = ByteString.CopyFrom(File.ReadAllBytes(slaveSQLiteFile));
-
-                return response;
-            }
-            catch (Exception)
-            {
-                throw;
-            }
-            finally
-            {
-                //Remove all temporary files and folder.
-                tempFolder.Delete();
-            }
-        }
+        //        return response;
+        //    }
+        //    catch (Exception)
+        //    {
+        //        throw;
+        //    }
+        //    finally
+        //    {
+        //        //Remove all temporary files and folder.
+        //        tempFolder.Delete();
+        //    }
+        //}
 
         [HttpPost]
         public MachineSetupResponse MachineSetup(MachineSetupRequest request)
         {
             MachineSetupResponse response = new MachineSetupResponse();
 
-            logManager.Log("Setup request received: " + request.ToString());
+            LogManager.Log("Setup request received: " + request.ToString());
 
-            try
+            using (ObservablesContext db = ObservablesContextHelper.CreateContext())
             {
-                using (ObservablesContext db = ObservablesContextHelper.CreateContext())
-                {
-                    db.Configuration.LazyLoadingEnabled = false;
-                    String serial_number = request.SerialNumber;
+                db.Configuration.LazyLoadingEnabled = false;
+                String serial_number = request.SerialNumber;
 
-                    var machine = db.Machines.SingleOrDefault(x => x.SerialNumber == serial_number);
+                var machine = db.Machines.SingleOrDefault(x => x.SerialNumber == serial_number);
 
-                    if (machine == null)
-                    {
-                        ThrowError(HttpStatusCode.NotFound, "The specified serial number could not be found.");
-                    }
+                if (machine == null)
+                {
+                    throw new AuthenticationException("The specified serial number could not be found.");
+                }
 
-                    var machine_version = db.MachineVersions.SingleOrDefault(x => x.Guid == machine.MachineVersionGuid);
+                var machine_version = db.MachineVersions.SingleOrDefault(x => x.Guid == machine.MachineVersionGuid);
 
-                    var latest_machine_version = db.TangoVersions.Where(x => x.MachineVersionGuid == machine_version.Guid).ToList().OrderByDescending(x => Version.Parse(x.Version)).FirstOrDefault();
+                var latest_machine_version = db.TangoVersions.Where(x => x.MachineVersionGuid == machine_version.Guid).ToList().OrderByDescending(x => Version.Parse(x.Version)).FirstOrDefault();
 
-                    response.Version = latest_machine_version.Version;
+                response.Version = latest_machine_version.Version;
 
-                    var client = StorageHelper.GetStorageBlobClient();
-                    var container = StorageHelper.GetTangoVersionsContainer(client);
-                    var blob = container.GetBlockBlobReference(latest_machine_version.BlobName);
+                var client = StorageHelper.GetStorageBlobClient();
+                var container = StorageHelper.GetTangoVersionsContainer(client);
+                var blob = container.GetBlockBlobReference(latest_machine_version.BlobName);
 
-                    response.BlobAddress = StorageHelper.GenerateBlobReadSignature(blob, TimeSpan.FromMinutes(60));
+                response.BlobAddress = StorageHelper.GenerateBlobReadSignature(blob, TimeSpan.FromMinutes(60));
 
-                    DbCredentials credentials = new DbCredentials();
+                DbCredentials credentials = new DbCredentials();
 
-                    using (SmoManager manager = new SmoManager())
-                    {
-                        credentials = manager.CreateRandomLoginAndUser();
+                using (SmoManager manager = new SmoManager())
+                {
+                    credentials = manager.CreateRandomLoginAndUser();
 
-                        Task.Delay(TimeSpan.FromMinutes(10)).ContinueWith((x) =>
+                    Task.Delay(TimeSpan.FromMinutes(10)).ContinueWith((x) =>
+                    {
+                        using (SmoManager m = new SmoManager())
                         {
-                            using (SmoManager m = new SmoManager())
-                            {
-                                m.DeleteLoginAndUser(credentials.UserName);
-                            }
-                        });
-                    }
-
-                    response.DbAddress = Config.DB_ADDRESS;
-                    response.DbUserName = credentials.UserName;
-                    response.DbPassword = credentials.Password;
+                            m.DeleteLoginAndUser(credentials.UserName);
+                        }
+                    });
                 }
-            }
-            catch (Exception ex)
-            {
-                logManager.Log(ex);
-                throw;
+
+                response.DbAddress = Config.DB_ADDRESS;
+                response.DbUserName = credentials.UserName;
+                response.DbPassword = credentials.Password;
             }
 
             return response;
@@ -147,55 +138,48 @@ namespace Tango.MachineService.Controllers
         {
             DownloadUpdateResponse response = new DownloadUpdateResponse();
 
-            try
+            using (ObservablesContext db = ObservablesContextHelper.CreateContext())
             {
-                using (ObservablesContext db = ObservablesContextHelper.CreateContext())
-                {
-                    db.Configuration.LazyLoadingEnabled = false;
-                    String serial_number = request.SerialNumber;
+                db.Configuration.LazyLoadingEnabled = false;
+                String serial_number = request.SerialNumber;
 
-                    var machine = db.Machines.SingleOrDefault(x => x.SerialNumber == serial_number);
+                var machine = db.Machines.SingleOrDefault(x => x.SerialNumber == serial_number);
 
-                    if (machine == null)
-                    {
-                        OnError(HttpStatusCode.NotFound, "The specified serial number could not be found.");
-                    }
+                if (machine == null)
+                {
+                    throw new AuthenticationException("The specified serial number could not be found.");
+                }
 
-                    var machine_version = db.MachineVersions.SingleOrDefault(x => x.Guid == machine.MachineVersionGuid);
+                var machine_version = db.MachineVersions.SingleOrDefault(x => x.Guid == machine.MachineVersionGuid);
 
-                    var latest_machine_version = db.TangoVersions.Where(x => x.MachineVersionGuid == machine_version.Guid).ToList().OrderByDescending(x => Version.Parse(x.Version)).FirstOrDefault();
+                var latest_machine_version = db.TangoVersions.Where(x => x.MachineVersionGuid == machine_version.Guid).ToList().OrderByDescending(x => Version.Parse(x.Version)).FirstOrDefault();
 
-                    response.Version = latest_machine_version.Version;
+                response.Version = latest_machine_version.Version;
 
-                    var client = StorageHelper.GetStorageBlobClient();
-                    var container = StorageHelper.GetTangoVersionsContainer(client);
-                    var blob = container.GetBlockBlobReference(latest_machine_version.BlobName);
+                var client = StorageHelper.GetStorageBlobClient();
+                var container = StorageHelper.GetTangoVersionsContainer(client);
+                var blob = container.GetBlockBlobReference(latest_machine_version.BlobName);
 
-                    response.BlobAddress = StorageHelper.GenerateBlobReadSignature(blob, TimeSpan.FromMinutes(60));
+                response.BlobAddress = StorageHelper.GenerateBlobReadSignature(blob, TimeSpan.FromMinutes(60));
 
-                    DbCredentials credentials = new DbCredentials();
+                DbCredentials credentials = new DbCredentials();
 
-                    using (SmoManager manager = new SmoManager())
-                    {
-                        credentials = manager.CreateRandomLoginAndUser();
+                using (SmoManager manager = new SmoManager())
+                {
+                    credentials = manager.CreateRandomLoginAndUser();
 
-                        Task.Delay(TimeSpan.FromMinutes(10)).ContinueWith((x) =>
+                    Task.Delay(TimeSpan.FromMinutes(10)).ContinueWith((x) =>
+                    {
+                        using (SmoManager m = new SmoManager())
                         {
-                            using (SmoManager m = new SmoManager())
-                            {
-                                m.DeleteLoginAndUser(credentials.UserName);
-                            }
-                        });
-                    }
-
-                    response.DbAddress = Config.DB_ADDRESS;
-                    response.DbUserName = credentials.UserName;
-                    response.DbPassword = credentials.Password;
+                            m.DeleteLoginAndUser(credentials.UserName);
+                        }
+                    });
                 }
-            }
-            catch (Exception ex)
-            {
-                OnError(HttpStatusCode.InternalServerError, ex.Message);
+
+                response.DbAddress = Config.DB_ADDRESS;
+                response.DbUserName = credentials.UserName;
+                response.DbPassword = credentials.Password;
             }
 
             return response;
@@ -206,34 +190,27 @@ namespace Tango.MachineService.Controllers
         {
             CheckForUpdateResponse response = new CheckForUpdateResponse();
 
-            try
+            using (ObservablesContext db = ObservablesContextHelper.CreateContext())
             {
-                using (ObservablesContext db = ObservablesContextHelper.CreateContext())
-                {
-                    db.Configuration.LazyLoadingEnabled = false;
-
-                    var machine = db.Machines.SingleOrDefault(x => x.SerialNumber == request.SerialNumber);
+                db.Configuration.LazyLoadingEnabled = false;
 
-                    if (machine == null)
-                    {
-                        OnError(HttpStatusCode.NotFound, "The specified serial number could not be found.");
-                    }
+                var machine = db.Machines.SingleOrDefault(x => x.SerialNumber == request.SerialNumber);
 
-                    var machine_version = db.MachineVersions.SingleOrDefault(x => x.Guid == machine.MachineVersionGuid);
+                if (machine == null)
+                {
+                    throw new AuthenticationException("The specified serial number could not be found.");
+                }
 
-                    var latest_machine_version = db.TangoVersions.Where(x => x.MachineVersionGuid == machine_version.Guid).ToList().OrderByDescending(x => Version.Parse(x.Version)).FirstOrDefault();
+                var machine_version = db.MachineVersions.SingleOrDefault(x => x.Guid == machine.MachineVersionGuid);
 
-                    if (Version.Parse(latest_machine_version.Version) > Version.Parse(request.Version))
-                    {
-                        response.IsUpdateAvailable = true;
-                    }
+                var latest_machine_version = db.TangoVersions.Where(x => x.MachineVersionGuid == machine_version.Guid).ToList().OrderByDescending(x => Version.Parse(x.Version)).FirstOrDefault();
 
-                    response.Version = latest_machine_version.Version;
+                if (Version.Parse(latest_machine_version.Version) > Version.Parse(request.Version))
+                {
+                    response.IsUpdateAvailable = true;
                 }
-            }
-            catch (Exception ex)
-            {
-                OnError(HttpStatusCode.InternalServerError, ex.Message);
+
+                response.Version = latest_machine_version.Version;
             }
 
             return response;
@@ -244,43 +221,36 @@ namespace Tango.MachineService.Controllers
         {
             UpdateDBResponse response = new UpdateDBResponse();
 
-            try
+            using (ObservablesContext db = ObservablesContextHelper.CreateContext())
             {
-                using (ObservablesContext db = ObservablesContextHelper.CreateContext())
-                {
-                    db.Configuration.LazyLoadingEnabled = false;
-                    String serial_number = request.SerialNumber;
+                db.Configuration.LazyLoadingEnabled = false;
+                String serial_number = request.SerialNumber;
 
-                    var machine = db.Machines.SingleOrDefault(x => x.SerialNumber == serial_number);
+                var machine = db.Machines.SingleOrDefault(x => x.SerialNumber == serial_number);
 
-                    if (machine == null)
-                    {
-                        OnError(HttpStatusCode.NotFound, "The specified serial number could not be found.");
-                    }
+                if (machine == null)
+                {
+                    throw new AuthenticationException("The specified serial number could not be found.");
+                }
 
-                    DbCredentials credentials = new DbCredentials();
+                DbCredentials credentials = new DbCredentials();
 
-                    using (SmoManager manager = new SmoManager())
-                    {
-                        credentials = manager.CreateRandomLoginAndUser();
+                using (SmoManager manager = new SmoManager())
+                {
+                    credentials = manager.CreateRandomLoginAndUser();
 
-                        Task.Delay(TimeSpan.FromMinutes(10)).ContinueWith((x) =>
+                    Task.Delay(TimeSpan.FromMinutes(10)).ContinueWith((x) =>
+                    {
+                        using (SmoManager m = new SmoManager())
                         {
-                            using (SmoManager m = new SmoManager())
-                            {
-                                m.DeleteLoginAndUser(credentials.UserName);
-                            }
-                        });
-                    }
-
-                    response.DbAddress = Config.DB_ADDRESS;
-                    response.DbUserName = credentials.UserName;
-                    response.DbPassword = credentials.Password;
+                            m.DeleteLoginAndUser(credentials.UserName);
+                        }
+                    });
                 }
-            }
-            catch (Exception ex)
-            {
-                OnError(HttpStatusCode.InternalServerError, ex.Message);
+
+                response.DbAddress = Config.DB_ADDRESS;
+                response.DbUserName = credentials.UserName;
+                response.DbPassword = credentials.Password;
             }
 
             return response;
@@ -299,18 +269,5 @@ namespace Tango.MachineService.Controllers
                 return machine;
             }
         }
-
-        #region Helpers
-
-        private void ThrowError(HttpStatusCode code, String message)
-        {
-            throw new WebApiException(code, message);
-        }
-
-        private void OnError(HttpStatusCode code, String message)
-        {
-            throw new HttpResponseException(Request.CreateErrorResponse(code, message));
-        }
-        #endregion
     }
 }
diff --git a/Software/Visual_Studio/Web/Tango.MachineService/Controllers/VersionUpdateController.cs b/Software/Visual_Studio/Web/Tango.MachineService/Controllers/VersionUpdateController.cs
index 953399530..b68da06a7 100644
--- a/Software/Visual_Studio/Web/Tango.MachineService/Controllers/VersionUpdateController.cs
+++ b/Software/Visual_Studio/Web/Tango.MachineService/Controllers/VersionUpdateController.cs
@@ -14,10 +14,8 @@ using Tango.PPC.Common.Update;
 
 namespace Tango.MachineService.Controllers
 {
-    public class VersionUpdateController : ApiController
+    public class VersionUpdateController : JsonController
     {
-        private LogManager LogManager = LogManager.Default;
-
         private class PendingUpload
         {
             public String Token { get; set; }
@@ -43,158 +41,118 @@ namespace Tango.MachineService.Controllers
         [HttpPost]
         public LatestVersionResponse GetLatestVersion(LatestVersionRequest request)
         {
-            try
+            LatestVersionResponse response = new LatestVersionResponse();
+
+            using (ObservablesContext db = ObservablesContextHelper.CreateContext())
             {
-                LatestVersionResponse response = new LatestVersionResponse();
+                var versions = db.TangoVersions.Where(x => x.MachineVersionGuid == request.MachineVersionGuid).ToList();
 
-                using (ObservablesContext db = ObservablesContextHelper.CreateContext())
+                if (versions.Count > 0)
                 {
-                    var versions = db.TangoVersions.Where(x => x.MachineVersionGuid == request.MachineVersionGuid).ToList();
-
-                    if (versions.Count > 0)
-                    {
-                        response.Version = db.TangoVersions.Where(x => x.MachineVersionGuid == request.MachineVersionGuid).ToList().OrderByDescending(x => Version.Parse(x.Version)).FirstOrDefault().Version;
-                    }
-                    else
-                    {
-                        return new LatestVersionResponse()
-                        {
-                            Version = "0.0.0.0"
-                        };
-                    }
+                    response.Version = db.TangoVersions.Where(x => x.MachineVersionGuid == request.MachineVersionGuid).ToList().OrderByDescending(x => Version.Parse(x.Version)).FirstOrDefault().Version;
+                }
+                else
+                {
+                    throw new ArgumentException("The specified machine version was not found!");
                 }
-
-                return response;
-            }
-            catch (Exception ex)
-            {
-                throw CreateError(ex, HttpStatusCode.InternalServerError);
             }
+
+            return response;
         }
 
         [HttpPost]
         public UploadVersionResponse UploadVersion(UploadVersionRequest request)
         {
-            try
+            UploadVersionResponse response = new UploadVersionResponse();
+
+            using (ObservablesContext db = ObservablesContextHelper.CreateContext())
             {
-                UploadVersionResponse response = new UploadVersionResponse();
+                //Load relations first...
+                db.Roles.ToList();
+                db.Permissions.ToList();
+                db.UsersRoles.ToList();
+                db.RolesPermissions.ToList();
 
-                using (ObservablesContext db = ObservablesContextHelper.CreateContext())
+                var user = db.Users.SingleOrDefault(x => x.Email.ToLower() == request.Email.ToLower() && x.Password == request.Password);
+
+                if (user != null && user.HasPermission(Permissions.PublishMachineStudioVersion))
                 {
-                    //Load relation first...
-                    db.Roles.ToList();
-                    db.Permissions.ToList();
-                    db.UsersRoles.ToList();
-                    db.RolesPermissions.ToList();
+                    var versions = db.TangoVersions.ToList().Where(x => x.MachineVersionGuid == request.MachineVersionGuid).OrderByDescending(x => Version.Parse(x.Version)).ToList();
 
-                    var user = db.Users.SingleOrDefault(x => x.Email.ToLower() == request.Email.ToLower() && x.Password == request.Password);
+                    TangoVersion latestVersion = new TangoVersion();
+                    latestVersion.Version = "0.0.0.0";
 
-                    if (user != null && user.HasPermission(Permissions.PublishMachineStudioVersion))
+                    if (versions.Count > 0)
                     {
-                        var versions = db.TangoVersions.ToList().Where(x => x.MachineVersionGuid == request.MachineVersionGuid).OrderByDescending(x => Version.Parse(x.Version)).ToList();
-
-                        TangoVersion latestVersion = new TangoVersion();
-                        latestVersion.Version = "0.0.0.0";
-
-                        if (versions.Count > 0)
-                        {
-                            latestVersion = versions.FirstOrDefault();
-                        }
+                        latestVersion = versions.FirstOrDefault();
+                    }
 
-                        Version currentVersion = Version.Parse(request.Version);
+                    Version currentVersion = Version.Parse(request.Version);
 
-                        if (currentVersion > Version.Parse(latestVersion.Version))
-                        {
-                            String newVersionFileName = "Tango Version" + " " + currentVersion.ToString() + ".zip";
+                    if (currentVersion > Version.Parse(latestVersion.Version))
+                    {
+                        String newVersionFileName = "Tango Version" + " " + currentVersion.ToString() + ".zip";
 
-                            var client = StorageHelper.GetStorageBlobClient();
-                            var container = StorageHelper.GetTangoVersionsContainer(client);
-                            var blob = StorageHelper.CreateEmptyBlob(container, newVersionFileName);
+                        var client = StorageHelper.GetStorageBlobClient();
+                        var container = StorageHelper.GetTangoVersionsContainer(client);
+                        var blob = StorageHelper.CreateEmptyBlob(container, newVersionFileName);
 
-                            response.Token = Guid.NewGuid().ToString();
-                            response.BlobAddress = StorageHelper.GenerateBlobWriteSignature(blob, TimeSpan.FromMinutes(30));
+                        response.Token = Guid.NewGuid().ToString();
+                        response.BlobAddress = StorageHelper.GenerateBlobWriteSignature(blob, TimeSpan.FromMinutes(30));
 
-                            _pendingUploads.Add(new PendingUpload()
-                            {
-                                UserGuid = user.Guid,
-                                Comments = request.Comments,
-                                Token = response.Token,
-                                Version = request.Version,
-                                BlobName = blob.Name,
-                                MachineVersionGuid = request.MachineVersionGuid,
-                            });
-                        }
-                        else
+                        _pendingUploads.Add(new PendingUpload()
                         {
-                            throw CreateError(new ArgumentException("New version must be greater than latest version."), HttpStatusCode.BadRequest);
-                        }
+                            UserGuid = user.Guid,
+                            Comments = request.Comments,
+                            Token = response.Token,
+                            Version = request.Version,
+                            BlobName = blob.Name,
+                            MachineVersionGuid = request.MachineVersionGuid,
+                        });
                     }
                     else
                     {
-                        throw CreateError(new AuthenticationException("Invalid user credentials."), HttpStatusCode.Unauthorized);
+                        throw new ArgumentException("New version must be greater than latest version.");
                     }
                 }
-
-                return response;
-            }
-            catch (HttpResponseException ex)
-            {
-                throw ex;
-            }
-            catch (Exception ex)
-            {
-                LogManager.Log(ex);
-                throw CreateError(ex, HttpStatusCode.InternalServerError);
+                else
+                {
+                    throw new AuthenticationException("Invalid user credentials.");
+                }
             }
+
+            return response;
         }
 
         [HttpPost]
         public UploadCompletedResponse NotifyUploadCompleted(UploadCompletedRequest request)
         {
-            try
+            PendingUpload upload = _pendingUploads.FirstOrDefault(x => x.Token == request.Token);
+
+            if (upload != null)
             {
-                PendingUpload upload = _pendingUploads.FirstOrDefault(x => x.Token == request.Token);
+                _pendingUploads.RemoveAll(x => x.Token == upload.Token);
 
-                if (upload != null)
+                using (ObservablesContext db = ObservablesContextHelper.CreateContext())
                 {
-                    _pendingUploads.RemoveAll(x => x.Token == upload.Token);
-
-                    using (ObservablesContext db = ObservablesContextHelper.CreateContext())
+                    db.TangoVersions.Add(new TangoVersion()
                     {
-                        db.TangoVersions.Add(new TangoVersion()
-                        {
-                            Comments = upload.Comments,
-                            BlobName = upload.BlobName,
-                            UserGuid = upload.UserGuid,
-                            Version = upload.Version,
-                            MachineVersionGuid = upload.MachineVersionGuid
-                        });
-
-                        db.SaveChanges();
-                    }
+                        Comments = upload.Comments,
+                        BlobName = upload.BlobName,
+                        UserGuid = upload.UserGuid,
+                        Version = upload.Version,
+                        MachineVersionGuid = upload.MachineVersionGuid
+                    });
 
-                    return new UploadCompletedResponse();
-                }
-                else
-                {
-                    throw CreateError(new AuthenticationException("Invalid Token."), HttpStatusCode.Unauthorized);
+                    db.SaveChanges();
                 }
+
+                return new UploadCompletedResponse();
             }
-            catch (HttpRequestException ex)
-            {
-                throw ex;
-            }
-            catch (Exception ex)
+            else
             {
-                LogManager.Log(ex);
-                throw CreateError(ex, HttpStatusCode.InternalServerError);
+                throw new AuthenticationException("Invalid upload token.");
             }
         }
-
-        private Exception CreateError(Exception ex, HttpStatusCode code)
-        {
-            LogManager.Log(ex);
-            return new HttpResponseException(Request.CreateErrorResponse(code, ex.Message));
-        }
     }
 }