From c8bd39056cd7880c56f3b1e482f94aa877ac8d20 Mon Sep 17 00:00:00 2001
From: Feross Aboukhadijeh <feross@feross.org>
Date: Sat, 19 Mar 2016 23:00:42 -0700
Subject: [PATCH] Register .torrent file hander on Windows

---
 main/register-protocol-handler.js | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/main/register-protocol-handler.js b/main/register-protocol-handler.js
index 6e43a03e..e84587c7 100644
--- a/main/register-protocol-handler.js
+++ b/main/register-protocol-handler.js
@@ -1,6 +1,7 @@
 module.exports = function () {
   if (process.platform === 'win32') {
     registerProtocolHandler('magnet', 'BitTorrent Magnet URL', process.execPath)
+    registerFileHandler('.torrent', 'io.webtorrent.torrent', 'BitTorrent Document', process.execPath)
   }
 }
 
@@ -44,3 +45,29 @@ function registerProtocolHandler (protocol, name, command) {
     if (err) console.error(err.message || err)
   }
 }
+
+function registerFileHandler (ext, id, name, command) {
+  var Registry = require('winreg')
+
+  var extKey = new Registry({
+    hive: Registry.HKCU, // HKEY_CURRENT_USER
+    key: '\\Software\\Classes\\' + ext
+  })
+  extKey.set('', Registry.REG_SZ, id, callback)
+
+  var idKey = new Registry({
+    hive: Registry.HKCU,
+    key: '\\Software\\Classes\\' + id
+  })
+  idKey.set('', Registry.REG_SZ, name, callback)
+
+  var commandKey = new Registry({
+    hive: Registry.HKCU,
+    key: '\\Software\\Classes\\' + id + '\\shell\\open\\command'
+  })
+  commandKey.set('', Registry.REG_SZ, '"' + command + '" "%1"', callback)
+
+  function callback (err) {
+    if (err) console.error(err.message || err)
+  }
+}