aspnetcore/samples/EchoApp/wwwroot/index.html

151 lines
5.7 KiB
HTML

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<style>
table { border: 0 }
.commslog-data { font-family: Consolas, Courier New, Courier, monospace; }
.commslog-server { background-color: red; color: white }
.commslog-client { background-color: green; color: white }
</style>
</head>
<body>
<h1>WebSocket Test Page</h1>
<p id="stateLabel">Ready to connect...</p>
<div>
<label for="connectionUrl">WebSocket Server URL:</label>
<input id="connectionUrl" />
<button id="connectButton" type="submit">Connect</button>
</div>
<div>
<label for="sendMessage">Message to send:</label>
<input id="sendMessage" disabled />
<button id="sendButton" type="submit" disabled>Send</button>
<button id="closeButton" disabled>Close Socket</button>
</div>
<p>Note: When connected to the default server (i.e. the server in the address bar ;)), the message "ServerClose" will cause the server to close the connection. Similarly, the message "ServerAbort" will cause the server to forcibly terminate the connection without a closing handshake</p>
<h2>Communication Log</h2>
<table style="width: 800px">
<thead>
<tr>
<td style="width: 100px">From</td>
<td style="width: 100px">To</td>
<td>Data</td>
</tr>
</thead>
<tbody id="commsLog">
</tbody>
</table>
<script>
var connectionForm = document.getElementById("connectionForm");
var connectionUrl = document.getElementById("connectionUrl");
var connectButton = document.getElementById("connectButton");
var stateLabel = document.getElementById("stateLabel");
var sendMessage = document.getElementById("sendMessage");
var sendButton = document.getElementById("sendButton");
var sendForm = document.getElementById("sendForm");
var commsLog = document.getElementById("commsLog");
var socket;
var scheme = document.location.protocol == "https:" ? "wss" : "ws";
var port = document.location.port ? (":" + document.location.port) : "";
connectionUrl.value = scheme + "://" + document.location.hostname + port;
function updateState() {
function disable() {
sendMessage.disabled = true;
sendButton.disabled = true;
closeButton.disabled = true;
}
function enable() {
sendMessage.disabled = false;
sendButton.disabled = false;
closeButton.disabled = false;
}
connectionUrl.disabled = true;
connectButton.disabled = true;
if (!socket) {
disable();
} else {
switch (socket.readyState) {
case WebSocket.CLOSED:
stateLabel.innerHTML = "Closed";
disable();
connectionUrl.disabled = false;
connectButton.disabled = false;
break;
case WebSocket.CLOSING:
stateLabel.innerHTML = "Closing...";
disable();
break;
case WebSocket.CONNECTING:
stateLabel.innerHTML = "Connecting...";
disable();
break;
case WebSocket.OPEN:
stateLabel.innerHTML = "Open";
enable();
break;
default:
stateLabel.innerHTML = "Unknown WebSocket State: " + socket.readyState;
disable();
break;
}
}
}
closeButton.onclick = function () {
if (!socket || socket.readyState != WebSocket.OPEN) {
alert("socket not connected");
}
socket.close(1000, "Closing from client");
}
sendButton.onclick = function () {
if (!socket || socket.readyState != WebSocket.OPEN) {
alert("socket not connected");
}
var data = sendMessage.value;
socket.send(data);
commsLog.innerHTML += '<tr>' +
'<td class="commslog-client">Client</td>' +
'<td class="commslog-server">Server</td>' +
'<td class="commslog-data">' + data + '</td>'
'</tr>';
}
connectButton.onclick = function() {
stateLabel.innerHTML = "Connecting";
socket = new WebSocket(connectionUrl.value);
socket.onopen = function (event) {
updateState();
commsLog.innerHTML += '<tr>' +
'<td colspan="3" class="commslog-data">Connection opened</td>' +
'</tr>';
};
socket.onclose = function (event) {
updateState();
commsLog.innerHTML += '<tr>' +
'<td colspan="3" class="commslog-data">Connection closed. Code: ' + event.code + '. Reason: ' + event.reason + '</td>' +
'</tr>';
};
socket.onerror = updateState;
socket.onmessage = function (event) {
commsLog.innerHTML += '<tr>' +
'<td class="commslog-server">Server</td>' +
'<td class="commslog-client">Client</td>' +
'<td class="commslog-data">' + event.data + '</td>'
'</tr>';
};
};
</script>
</body>
</html>