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<!DOCTYPE html>
<meta charset="utf-8" />
<title>WebSocket Test</title>
<script language="javascript" type="text/javascript">
var output;
function init(){
output = document.getElementById("output");
testWebSocket();
}
function testWebSocket(){
var here = window.location.host;
var wsUri = `ws://${here}/ws`;
websocket = new WebSocket(wsUri);
websocket.onopen = function(evt) { onOpen(evt) };
websocket.onclose = function(evt) { onClose(evt) };
websocket.onmessage = function(evt) { onMessage(evt) };
websocket.onerror = function(evt) { onError(evt) };
}
function onOpen(evt){
writeToScreen("CONNECTED");
}
function onClose(evt){
writeToScreen("DISCONNECTED");
}
function onMessage(evt){
writeToScreen('<span style="color: blue;">RESPONSE: ' + evt.data+'</span>');
websocket.close();
}
function onError(evt){
writeToScreen('<span style="color: red;">ERROR:</span> ' + evt.data);
}
function sendMessage(message){
writeToScreen("SENT: " + message);
websocket.send(message);
}
function writeToScreen(message){
var pre = document.createElement("p");
pre.style.wordWrap = "break-word";
pre.innerHTML = message;
output.appendChild(pre);
}
function sendFromInput(){
var msg = document.getElementById("field1").value;
sendMessage(msg)
}
window.addEventListener("load", init, false);
</script>
<input type="text" id="field1" value="print('fsdf')"><br>
<button onclick="sendFromInput()">Send</button>
<div id="output"></div>
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