Added option to use --intranet to not download or update any files,… (#3350)

* Added option to use `--intranet` to not download or update any files, this can only be done after an initial run.

* Dropped some unneeded debug changes that I commited by accident

* Added conventional suggestions from Github.com comments

---------

Co-authored-by: Jean-Paul van Houten - Bos <jeanpaul.vhouten@koop.overheid.nl>

extra/exe-builder/Program.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.Drawing;
@@ -28,9 +28,15 @@ namespace UptimeKuma {
                 Environment.CurrentDirectory = cwd;
             }
 
+            bool isIntranet = args.Contains("--intranet");
+
+            if (isIntranet) {
+                Console.WriteLine("The --intranet argument was provided, so we will not try to access the internet. The first time this application runs you'll need to run it without the --intranet param or copy the result from another machine to the intranet server.");
+            }
+
             Application.EnableVisualStyles();
             Application.SetCompatibleTextRenderingDefault(false);
-            Application.Run(new UptimeKumaApplicationContext());
+            Application.Run(new UptimeKumaApplicationContext(isIntranet));
         }
     }
 
@@ -49,8 +55,9 @@ namespace UptimeKuma {
 
         private RegistryKey registryKey = Registry.CurrentUser.OpenSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run", true);
 
+        private readonly bool intranetOnly;
 
-        public UptimeKumaApplicationContext() {
+        public UptimeKumaApplicationContext(bool intranetOnly) {
 
             // Single instance only
             bool createdNew;
@@ -59,6 +66,8 @@ namespace UptimeKuma {
                 return;
             }
 
+            this.intranetOnly = intranetOnly;
+
             var startingText = "Starting server...";
             trayIcon = new NotifyIcon();
             trayIcon.Text = startingText;
@@ -98,6 +107,10 @@ namespace UptimeKuma {
         }
 
         void DownloadFiles() {
+            if (intranetOnly) {
+                return;
+            }
+
             var form = new DownloadForm();
             form.Closed += Exit;
             form.Show();
@@ -173,7 +186,9 @@ namespace UptimeKuma {
         }
 
         void CheckForUpdate(object sender, EventArgs e) {
-            var needUpdate = false;
+            if (intranetOnly) {
+                return;
+            }
 
             // Check version.json exists
             if (File.Exists("version.json")) {
@@ -204,8 +219,12 @@ namespace UptimeKuma {
 
         }
 
-        void VisitGitHub(object sender, EventArgs e)
-        {
+        void VisitGitHub(object sender, EventArgs e) {
+            if (intranetOnly) {
+                MessageBox.Show("You have parsed in --intranet so we will not try to access the internet or visit github.com, please go to https://github.com/louislam/uptime-kuma if you want to visit github.");
+                return;
+            }
+
             Process.Start("https://github.com/louislam/uptime-kuma");
         }
 

extra/exe-builder/UptimeKuma.csproj

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
     <Import Project="packages\Costura.Fody.5.7.0\build\Costura.Fody.props" Condition="Exists('packages\Costura.Fody.5.7.0\build\Costura.Fody.props')" />
     <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />