리버스프록시 뒤에 있어도 제 ip를 사용하도록 수정

@@ -21,6 +21,7 @@ const hbs = exphbs.create({
 app.engine('handlebars', hbs.engine);
 app.set('view engine', 'handlebars');
 app.set('views', path.join(__dirname, 'views'));
+app.set('trust proxy', true);
 
 fs.readdirSync(path.resolve(__dirname, 'routes')).forEach((name) => {
     require(path.resolve(__dirname, 'routes', name));

@@ -24,6 +24,6 @@ app.post('/board/:bid', async(req, res) => {
         res.status(404).send('그런 판은 우리에게 있을 수 없어.');
     }
     let thread = await db.get('thread').insert({board: board._id, title: req.body.title, content: req.body.content, lastUpdated: Date.now(), count: 1});
-    await db.get('thread').update(thread._id, {$set: {writer: hash(thread._id, req.ip)}});
+    await db.get('thread').update(thread._id, {$set: {writer: hash(thread._id, req.get('x-real-ip') || req.ip)}});
     res.redirect('/thread/' + thread._id);
 });

@@ -22,7 +22,7 @@ module.exports = {
                 });
                 socket.on('write', async(content) => {
                     console.log(`write ${content}`);
-                    let subthread = await db.get('subthread').insert({parent: thread._id, writer: hash(thread._id, socket.handshake.address), content, no: ++thread.count});
+                    let subthread = await db.get('subthread').insert({parent: thread._id, writer: hash(thread._id, socket.handshake.headers['x-real-ip'] || socket.handshake.address), content, no: ++thread.count});
                     db.get('thread').update(thread._id, {$set: {count: thread.count, lastUpdated: Date.now()}});
                     io.to(`thread-${thread._id}`).emit('thread', subthread);
                     console.log(`broadcast thread-${thread._id}`);