Add Socketio support

and modify some websocket and sse code to pick up common function and component

functions/utils/valid.js

@@ -0,0 +1,27 @@
+/**
+ * valid url for ws/wss
+ */
+export function wsValid(url) {
+  const protocol = "^(wss?:\\/\\/)?"
+  const validIP = new RegExp(
+    `${protocol}(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5]).){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$`
+  )
+  const validHostname = new RegExp(
+    `${protocol}(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9-]*[a-zA-Z0-9]).)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9-]*[A-Za-z0-9/])$`
+  )
+  return validIP.test(url) || validHostname.test(url)
+}
+
+/**
+ * valid url for http/https
+ */
+export function sseValid(url) {
+  const protocol = "^(https?:\\/\\/)?"
+  const validIP = new RegExp(
+    `${protocol}(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5]).){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$`
+  )
+  const validHostname = new RegExp(
+    `${protocol}(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9-]*[a-zA-Z0-9]).)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9-]*[A-Za-z0-9/])$`
+  )
+  return validIP.test(url) || validHostname.test(url)
+}