desktop: add custom dns toggle in settings

apps/desktop/src/api/os-integration.ts

@@ -32,6 +32,7 @@ import { AssetManager } from "../utils/asset-manager";
 import { isFlatpak } from "../utils";
 import { setupDesktopIntegration } from "../utils/desktop-integration";
 import { rm } from "fs/promises";
+import { disableCustomDns, enableCustomDns } from "../utils/custom-dns";
 
 const t = initTRPC.create();
 
@@ -55,6 +56,15 @@ export const osIntegrationRouter = t.router({
     config.zoomFactor = factor;
   }),
 
+  customDns: t.procedure.query(() => config.customDns),
+  setCustomDns: t.procedure
+    .input(z.boolean())
+    .mutation(({ input: customDns }) => {
+      if (customDns) enableCustomDns();
+      else disableCustomDns();
+      config.customDns = customDns;
+    }),
+
   proxyRules: t.procedure.query(() => config.proxyRules),
   setProxyRules: t.procedure
     .input(z.string().optional())

apps/desktop/src/main.ts

@@ -35,6 +35,7 @@ import path from "path";
 import { bringToFront } from "./utils/bring-to-front";
 import { bridge } from "./api/bridge";
 import { setupDesktopIntegration } from "./utils/desktop-integration";
+import { disableCustomDns, enableCustomDns } from "./utils/custom-dns";
 
 // only run a single instance
 if (!MAC_APP_STORE && !app.requestSingleInstanceLock()) {
@@ -151,14 +152,8 @@ async function createWindow() {
 app.once("ready", async () => {
   console.info("App ready. Opening window.");
 
-  app.configureHostResolver({
-    secureDnsServers: [
-      "https://mozilla.cloudflare-dns.com/dns-query",
-      "https://dns.quad9.net/dns-query"
-    ],
-    enableBuiltInResolver: true,
-    secureDnsMode: "automatic"
-  });
+  if (config.customDns) enableCustomDns();
+  else disableCustomDns();
 
   if (!isDevelopment()) registerProtocol();
   await createWindow();

apps/desktop/src/utils/config.ts

@@ -43,6 +43,7 @@ export const config = {
   theme: nativeTheme.themeSource,
   automaticUpdates: true,
   proxyRules: "",
+  customDns: true,
 
   backgroundColor: nativeTheme.themeSource === "dark" ? "#0f0f0f" : "#ffffff",
   windowControlsIconColor:

apps/desktop/src/utils/custom-dns.ts

@@ -0,0 +1,37 @@
+/*
+This file is part of the Notesnook project (https://notesnook.com/)
+
+Copyright (C) 2023 Streetwriters (Private) Limited
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+import { app } from "electron";
+
+export function enableCustomDns() {
+  app.configureHostResolver({
+    secureDnsServers: [
+      "https://mozilla.cloudflare-dns.com/dns-query",
+      "https://dns.quad9.net/dns-query"
+    ],
+    enableBuiltInResolver: true
+  });
+}
+
+export function disableCustomDns() {
+  app.configureHostResolver({
+    secureDnsServers: [],
+    enableBuiltInResolver: true
+  });
+}

apps/web/src/dialogs/settings/privacy-settings.ts

@@ -111,6 +111,26 @@ What data is collected & when?`,
     section: "privacy",
     header: "Advanced",
     settings: [
+      {
+        key: "custom-dns",
+        title: "Use custom DNS",
+        description: `Notesnook uses the following DNS providers:
+
+1. Cloudflare DNS
+2. Quad9
+
+This can sometimes bypass local ISP blockages on Notesnook traffic. Disable this if you want the app to use system's DNS settings.`,
+        onStateChange: (listener) =>
+          useSettingStore.subscribe((s) => s.customDns, listener),
+        isHidden: () => !IS_DESKTOP_APP,
+        components: [
+          {
+            type: "toggle",
+            isToggled: () => useSettingStore.getState().customDns,
+            toggle: () => useSettingStore.getState().toggleCustomDns()
+          }
+        ]
+      },
       {
         key: "custom-cors",
         title: "Custom CORS proxy",

apps/web/src/stores/setting-store.ts

@@ -42,6 +42,7 @@ class SettingStore extends BaseStore<SettingStore> {
 
   zoomFactor = 1.0;
   privacyMode = false;
+  customDns = true;
   hideNoteTitle = Config.get("hideNoteTitle", false);
   telemetry = isTelemetryEnabled();
   dateFormat = "DD-MM-YYYY";
@@ -67,6 +68,7 @@ class SettingStore extends BaseStore<SettingStore> {
       desktopIntegrationSettings:
         await desktop?.integration.desktopIntegration.query(),
       privacyMode: await desktop?.integration.privacyMode.query(),
+      customDns: await desktop?.integration.customDns.query(),
       zoomFactor: await desktop?.integration.zoomFactor.query(),
       autoUpdates: await desktop?.updater.autoUpdates.query(),
       proxyRules: await desktop?.integration.proxyRules.query()
@@ -177,6 +179,12 @@ class SettingStore extends BaseStore<SettingStore> {
     await desktop?.integration.setPrivacyMode.mutate({ enabled: !privacyMode });
   };
 
+  toggleCustomDns = async () => {
+    const customDns = this.get().customDns;
+    this.set({ customDns: !customDns });
+    await desktop?.integration.setCustomDns.mutate(!customDns);
+  };
+
   toggleHideTitle = async () => {
     const { hideNoteTitle } = this.get();
     this.set({ hideNoteTitle: !hideNoteTitle });