Widevine DRM signing support via the python package Castlabs EVS

.gitignore

@@ -1,3 +1,4 @@
 /dist
 /node_modules
-/windowBounds.*
+/windowBounds.*
+*.config

Readme.md

@@ -14,6 +14,12 @@ __This app is unofficial and is not associated in any way with the Formula 1 com
 ## Installation
 1. Install the LTS version of Node: [Node (LTS)](https://nodejs.org/)
 2. Run in a cmd window: `npm install`
+#### Optional steps for DRM support (Required to play streams with Widevine DRM)
+3. Install python 3: [Python 3](https://www.python.org/downloads/)
+4. Install the castlabs-evs package for Python: `python -m pip install --upgrade castlabs-evs`
+5. Sign up for an EVS account: `python -m castlabs_evs.account signup`
+6. For DRM support while develping, sign the electron.exe file: `python -m castlabs_evs.vmp sign-pkg node_modules/electron/dist`
+7. For more info about EVS: https://github.com/castlabs/electron-releases/wiki/EVS
 
 ## Start the app
 1. run in a cmd window: `npm start`

after-sign.js

@@ -0,0 +1,30 @@
+exports.default = async function(context) {
+
+  // If we are not packaging for windows we don't sign here, just return
+  if (context.packager.platform.name !== 'windows') {
+    return;
+  }
+
+  // Make sure we don't leave an outdated electron.exe.sig laying about
+  if (context.packager.appInfo.productFilename !== 'electron') {
+    var fs = require("fs");
+    var path = context.appOutDir + '/electron.exe.sig'
+    if (fs.existsSync(path)) {
+      fs.unlinkSync(path)
+    }
+  }
+
+  // Sign the application package
+  var spawnSync = require("child_process").spawnSync;
+  var vmp = spawnSync('python', [
+      '-m', 'castlabs_evs.vmp', 'sign-pkg', 'dist/win-unpacked'
+    ],
+    {
+      stdio: 'inherit' 
+    });
+
+  if (vmp.status != 0) {
+    throw new Error('vmp-resign.py failed with code: ' + vmp.status);
+  }
+
+}

main.js

@@ -113,7 +113,8 @@ ipcMain.handle('video-ipc', (event, videoUrl, referrer) => {
     webPreferences: {
       contextIsolation: false,
       nodeIntegration: true,
-      webviewTag: true
+      webviewTag: true,
+      plugins: true
     }
   }
 

package.json

@@ -28,6 +28,7 @@
     "productName": "Race TV Multiplayer",
     "electronDownload": {
       "mirror": "https://github.com/castlabs/electron-releases/releases/download/v"
-    }
+    },
+    "afterSign": "./after-sign.js"
   }
 }