implementing whitelisted protocols to allow configuring linkifiers in…

… the settings.json

app/common/config-schemata.ts

@@ -36,6 +36,7 @@ export const configSchemata = {
   useManualProxy: z.boolean(),
   useProxy: z.boolean(),
   useSystemProxy: z.boolean(),
+  whitelistedProtocols: z.string().array(),
 };
 
 export const enterpriseConfigSchemata = {

app/common/link-util.ts

@@ -3,10 +3,20 @@ import fs from "node:fs";
 import os from "node:os";
 import path from "node:path";
 
+import * as ConfigUtil from "./config-util.js";
 import {html} from "./html.js";
 
+/* Fetches the current protocolLaunchers from settings.json */
+const whitelistedProtocols = ConfigUtil.getConfigItem("whitelistedProtocols", [
+  "http:",
+  "https:",
+  "mailto:",
+  "tel:",
+  "sip:",
+]);
+
 export async function openBrowser(url: URL): Promise<void> {
-  if (["http:", "https:", "mailto:"].includes(url.protocol)) {
+  if (whitelistedProtocols.includes(url.protocol)) {
     await shell.openExternal(url.href);
   } else {
     // For security, indirect links to non-whitelisted protocols