private bool ValidatePatchRequest(CompanySafetyRequestApiPatchRequest req)
 {
     if (req.LoginToken == null)
     {
         return(false);
     }
     if (req.AuthToken == null)
     {
         return(false);
     }
     if (req.UserId <= 0)
     {
         return(false);
     }
     if (req.RequestId <= 0)
     {
         return(false);
     }
     if (req.SafetyRequirementsString == null)
     {
         return(false);
     }
     return(true);
 }
        /// <summary>
        /// PATCH request format located in the Web Api Enumeration v2
        /// under the tab Company/Safety/Request, starting row 95
        /// </summary>
        /// <param name="ctx">HttpListenerContext to respond to</param>
        private void HandlePatchRequest(HttpListenerContext ctx)
        {
            try
            {
                #region Input Validation
                if (!ctx.Request.HasEntityBody)
                {
                    WriteBodyResponse(ctx, 400, "Bad Request", "No Body");
                    return;
                }
                string reqStr = new StreamReader(ctx.Request.InputStream).ReadToEnd();
                CompanySafetyRequestApiPatchRequest entry = JsonDataObjectUtil <CompanySafetyRequestApiPatchRequest> .ParseObject(reqStr);

                if (!ValidatePatchRequest(entry))
                {
                    CompanySafetyRequestApiDeleteRequest entry2 = JsonDataObjectUtil <CompanySafetyRequestApiDeleteRequest> .ParseObject(reqStr);

                    if (entry2 != null && ValidateDeleteRequest(entry2))
                    {
                        HandleDeleteRequest(ctx, entry2);
                        return;
                    }
                    WriteBodyResponse(ctx, 400, "Bad Request", "Incorrect Format");
                    return;
                }
                #endregion

                MySqlDataManipulator connection = new MySqlDataManipulator();
                using (connection)
                {
                    bool res = connection.Connect(MySqlDataManipulator.GlobalConfiguration.GetConnectionString());
                    if (!res)
                    {
                        WriteBodyResponse(ctx, 500, "Unexpected Server Error", "Connection to database failed");
                        return;
                    }
                    #region User Validation
                    OverallUser mappedUser = connection.GetUserById(entry.UserId);
                    if (mappedUser == null)
                    {
                        WriteBodyResponse(ctx, 404, "Not Found", "User was not found on on the server");
                        return;
                    }
                    if (!UserVerificationUtil.LoginTokenValid(mappedUser, entry.LoginToken))
                    {
                        WriteBodyResponse(ctx, 401, "Not Authorized", "Login token was incorrect.");
                        return;
                    }
                    if (!UserVerificationUtil.AuthTokenValid(mappedUser, entry.AuthToken))
                    {
                        WriteBodyResponse(ctx, 401, "Not Authorized", "Auth token was ezpired or incorrect");
                        return;
                    }
                    if ((mappedUser.AccessLevel & AccessLevelMasks.SafetyMask) == 0)
                    {
                        WriteBodyResponse(ctx, 401, "Not Authorized", "User was not a parts level user");
                        return;
                    }
                    #endregion

                    #region Action Handling
                    var request = connection.GetSafetyAdditionRequestById(mappedUser.Company, entry.RequestId);

                    if (request == null)
                    {
                        WriteBodyResponse(ctx, 404, "Not Found", "The requested request was not found");
                        return;
                    }

                    request.RequestedAdditions = entry.SafetyRequirementsString;
                    if (!connection.UpdateSafetyAdditionRequest(mappedUser.Company, request))
                    {
                        WriteBodyResponse(ctx, 500, "Internal Server Error", "Error occurred while attempting to update request: " + connection.LastException.Message);
                        return;
                    }
                    WriteBodylessResponse(ctx, 200, "OK");
                    #endregion
                }
            }
            catch (HttpListenerException)
            {
                //HttpListeners dispose themselves when an exception occurs, so we can do no more.
            }
            catch (Exception e)
            {
                WriteBodyResponse(ctx, 500, "Internal Server Error", e.Message);
            }
        }