修复socket连接出错

hydro/service/server.js

@@ -53,6 +53,7 @@ function POST(route, ...handler) {
 function SOCKET(prefix, middlewares, handler) {
     const sock = sockjs.createServer({ prefix });
     sock.on('connection', async conn => {
+        try {
             conn.cookies = {
                 get(name) {
                     return conn.cookies[name];
@@ -64,7 +65,7 @@ function SOCKET(prefix, middlewares, handler) {
             conn.request = {
                 headers: conn.headers
             };
-        let p = conn.url.split('?')[1].split('&');
+            let p = (conn.url.split('?')[1] || '').split('&');
             for (let i in p) p[i] = p[i].split('=');
             for (let i in p) conn.params[p[i][0]] = decodeURIComponent(p[i][1]);
             await new Promise((resolve, reject) => {
@@ -89,6 +90,9 @@ function SOCKET(prefix, middlewares, handler) {
                 conn.write(JSON.stringify(data));
             };
             handler(conn);
+        } catch (e) {
+            console.error(e);
+        }
     });
     sock.installHandlers(server);
 }