Merge pull request from GHSA-mjrg-9f8r-h3m7

* Patch part 1: remove electronVersion

We no longer need to specify electronVersion at all since electron
is now in devDependencies. Removing it means electron can be updated
the same way as any other dependency.

* Only allow main app page to be opened via URL

We previously allowed any URL to be opened in the main electron
window. Allow only the main app page, as commented.

* use exact equals

* Make url logic clearer

package.json

@@ -83,7 +83,6 @@
   },
   "build": {
     "appId": "im.riot.app",
-    "electronVersion": "13.5.1",
     "files": [
       "package.json",
       {

src/protocol.ts

@@ -19,7 +19,7 @@ import { URL } from "url";
 import path from "path";
 import fs from "fs";
 
-const PROTOCOL = "element://";
+const PROTOCOL = "element:";
 const SEARCH_PARAM = "element-desktop-ssoid";
 const STORE_FILE_NAME = "sso-sessions.json";
 
@@ -28,8 +28,28 @@ const storePath = path.join(app.getPath("userData"), STORE_FILE_NAME);
 
 function processUrl(url: string): void {
     if (!global.mainWindow) return;
-    console.log("Handling link: ", url);
+
-    global.mainWindow.loadURL(url.replace(PROTOCOL, "vector://"));
+    const parsed = new URL(url);
+    // sanity check: we only register for the one protocol, so we shouldn't
+    // be getting anything else unless the user is forcing a URL to open
+    // with the Element app.
+    if (parsed.protocol !== PROTOCOL) {
+        console.log("Ignoring unexpected protocol: ", parsed.protocol);
+        return;
+    }
+
+    const urlToLoad = new URL("vector://vector/webapp/");
+    // ignore anything other than the search (used for SSO login redirect)
+    // and the hash (for general element deep links)
+    // There's no reason to allow anything else, particularly other paths,
+    // since this would allow things like the internal jitsi wrapper to
+    // be loaded, which would get the app stuck on that page and generally
+    // be a bit strange and confusing.
+    urlToLoad.search = parsed.search;
+    urlToLoad.hash = parsed.hash;
+
+    console.log("Opening URL: ", urlToLoad.href);
+    global.mainWindow.loadURL(urlToLoad.href);
 }
 
 function readStore(): object {
@@ -62,10 +82,10 @@ export function recordSSOSession(sessionID: string): void {
 
 export function getProfileFromDeeplink(args): string | undefined {
     // check if we are passed a profile in the SSO callback url
-    const deeplinkUrl = args.find(arg => arg.startsWith('element://'));
+    const deeplinkUrl = args.find(arg => arg.startsWith(PROTOCOL + '//'));
     if (deeplinkUrl && deeplinkUrl.includes(SEARCH_PARAM)) {
         const parsedUrl = new URL(deeplinkUrl);
-        if (parsedUrl.protocol === 'element:') {
+        if (parsedUrl.protocol === PROTOCOL) {
             const ssoID = parsedUrl.searchParams.get(SEARCH_PARAM);
             const store = readStore();
             console.log("Forwarding to profile: ", store[ssoID]);
@@ -96,7 +116,7 @@ export function protocolInit(): void {
         // Protocol handler for win32/Linux
         app.on('second-instance', (ev, commandLine) => {
             const url = commandLine[commandLine.length - 1];
-            if (!url.startsWith(PROTOCOL)) return;
+            if (!url.startsWith(PROTOCOL + '//')) return;
             processUrl(url);
         });
     }

yarn.lock

@@ -142,9 +142,9 @@
     ajv-keywords "^3.4.1"
 
 "@electron/get@^1.0.1":
-  version "1.13.0"
+  version "1.13.1"
-  resolved "https://registry.yarnpkg.com/@electron/get/-/get-1.13.0.tgz#95c6bcaff4f9a505ea46792424f451efea89228c"
+  resolved "https://registry.yarnpkg.com/@electron/get/-/get-1.13.1.tgz#42a0aa62fd1189638bd966e23effaebb16108368"
-  integrity sha512-+SjZhRuRo+STTO1Fdhzqnv9D2ZhjxXP6egsJ9kiO8dtP68cDx7dFCwWi64dlMQV7sWcfW1OYCW4wviEBzmRsfQ==
+  integrity sha512-U5vkXDZ9DwXtkPqlB45tfYnnYBN8PePp1z/XDCupnSpdrxT8/ThCv9WCwPLf9oqiSGZTkH6dx2jDUPuoXpjkcA==
   dependencies:
     debug "^4.1.1"
     env-paths "^2.2.0"
@@ -154,7 +154,7 @@
     semver "^6.2.0"
     sumchecker "^3.0.1"
   optionalDependencies:
-    global-agent "^2.0.2"
+    global-agent "^3.0.0"
     global-tunnel-ng "^2.7.1"
 
 "@electron/universal@1.0.5":
@@ -758,9 +758,9 @@
   integrity sha512-WiFf2izl01P1CpeY8WqFAeKWwByMueBEkND38EcN8N68qb0aDG3oIS1P5MhAX5kUdr469qRyqsY/MjanLjsFbQ==
 
 "@types/node@^14.6.2":
-  version "14.17.21"
+  version "14.18.0"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-14.17.21.tgz#6359d8cf73481e312a43886fa50afc70ce5592c6"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-14.18.0.tgz#98df2397f6936bfbff4f089e40e06fa5dd88d32a"
-  integrity sha512-zv8ukKci1mrILYiQOwGSV4FpkZhyxQtuFWGya2GujWg+zVAeRQ4qbaMmWp9vb9889CFA8JECH7lkwCL6Ygg8kA==
+  integrity sha512-0GeIl2kmVMXEnx8tg1SlG6Gg8vkqirrW752KqolYo1PHevhhZN3bhJ67qHj+bQaINhX0Ra3TlWwRvMCd9iEfNQ==
 
 "@types/plist@^3.0.1":
   version "3.0.2"
@@ -1613,11 +1613,6 @@ console-control-strings@^1.0.0, console-control-strings@~1.1.0:
   resolved "https://registry.yarnpkg.com/console-control-strings/-/console-control-strings-1.1.0.tgz#3d7cf4464db6446ea644bf4b39507f9851008e8e"
   integrity sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4=
 
-core-js@^3.6.5:
-  version "3.18.2"
-  resolved "https://registry.yarnpkg.com/core-js/-/core-js-3.18.2.tgz#63a551e8a29f305cd4123754846e65896619ba5b"
-  integrity sha512-zNhPOUoSgoizoSQFdX1MeZO16ORRb9FFQLts8gSYbZU5FcgXhp24iMWMxnOQo5uIaIG7/6FA/IqJPwev1o9ZXQ==
-
 core-util-is@1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
@@ -1708,7 +1703,7 @@ debounce-fn@^4.0.0:
   dependencies:
     mimic-fn "^3.0.0"
 
-debug@4, debug@^4.0.1, debug@^4.1.0, debug@^4.1.1, debug@^4.3.1, debug@^4.3.2:
+debug@4, debug@^4.0.1, debug@^4.3.1, debug@^4.3.2:
   version "4.3.2"
   resolved "https://registry.yarnpkg.com/debug/-/debug-4.3.2.tgz#f0a49c18ac8779e31d4a0c6029dfb76873c7428b"
   integrity sha512-mOp8wKcvj7XxC78zLgw/ZA+6TSgkoE2C/ienthhRD298T7UNwAg9diBpLRxC0mOezLl4B0xV7M0cCO6P/O0Xhw==
@@ -1729,6 +1724,13 @@ debug@^3.2.6:
   dependencies:
     ms "^2.1.1"
 
+debug@^4.1.0, debug@^4.1.1:
+  version "4.3.3"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-4.3.3.tgz#04266e0b70a98d4462e6e288e38259213332b664"
+  integrity sha512-/zxw5+vh1Tfv+4Qn7a5nsbcJKPaSvCDhojn6FEl9vupwK2VCSDtEiEtqr8DFtzYFOdz63LBkxec7DYuc2jon6Q==
+  dependencies:
+    ms "2.1.2"
+
 decompress-response@^3.3.0:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/decompress-response/-/decompress-response-3.3.0.tgz#80a4dd323748384bfa248083622aedec982adff3"
@@ -1961,9 +1963,9 @@ electron-window-state@^5.0.3:
     mkdirp "^0.5.1"
 
 electron@13.5:
-  version "13.5.1"
+  version "13.5.2"
-  resolved "https://registry.yarnpkg.com/electron/-/electron-13.5.1.tgz#76c02c39be228532f886a170b472cbd3d93f0d0f"
+  resolved "https://registry.yarnpkg.com/electron/-/electron-13.5.2.tgz#5c5826e58a5e12bb5ca8047b789d07b45260ecbc"
-  integrity sha512-ZyxhIhmdaeE3xiIGObf0zqEyCyuIDqZQBv9NKX8w5FNzGm87j4qR0H1+GQg6vz+cA1Nnv1x175Zvimzc0/UwEQ==
+  integrity sha512-CPakwDpy5m8dL0383F5uJboQcVtn9bT/+6/wdDKo8LuTUO9aER1TF41v7feZgZW2c+UwoGPWa814ElSQ3qta2A==
   dependencies:
     "@electron/get" "^1.0.1"
     "@types/node" "^14.6.2"
@@ -2499,13 +2501,12 @@ glob@^7.1.3, glob@^7.1.4, glob@^7.1.6:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
-global-agent@^2.0.2:
+global-agent@^3.0.0:
-  version "2.2.0"
+  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/global-agent/-/global-agent-2.2.0.tgz#566331b0646e6bf79429a16877685c4a1fbf76dc"
+  resolved "https://registry.yarnpkg.com/global-agent/-/global-agent-3.0.0.tgz#ae7cd31bd3583b93c5a16437a1afe27cc33a1ab6"
-  integrity sha512-+20KpaW6DDLqhG7JDiJpD1JvNvb8ts+TNl7BPOYcURqCrXqnN1Vf+XVOrkKJAFPqfX+oEhsdzOj1hLWkBTdNJg==
+  integrity sha512-PT6XReJ+D07JvGoxQMkT6qji/jVNfX/h364XHZOWeRzy64sSFr+xJ5OX7LI3b4MPQzdL4H8Y8M0xzPpsVMwA8Q==
   dependencies:
     boolean "^3.0.1"
-    core-js "^3.6.5"
     es6-error "^4.1.1"
     matcher "^3.0.0"
     roarr "^2.15.3"