src/tests/cefclient/resources/server.html

<html>
<head>
<title>Server Test</title>
<script language="JavaScript">

// Send a query to the browser process.
function sendMessage(request, success_callback) {
  // Results in a call to the OnQuery method in server_test.cc
  window.cefQuery({
    request: JSON.stringify(request),
    onSuccess: function(response) {
      success_callback(response.length == 0 ? {} : JSON.parse(response));
    },
    onFailure: function(error_code, error_message) {
      alert("Request failed with error " + error_message + "(" + error_code + ")");
    }
  });
}

function setButtonState(start_enabled, stop_enabled) {
  document.getElementById('start').disabled = !start_enabled;
  document.getElementById('stop').disabled = !stop_enabled;
  document.getElementById('open').disabled = !stop_enabled;
}

function setup() {
  if (location.origin != 'https://tests') {
    document.getElementById('warning').style.display = 'block';
    return;
  }

  // Query the current server state.
  sendMessage({'action':'query'}, function(response) {
    if (response['result'] == 'success') {
      var running = (response['status'] == 'running')
      setButtonState(!running, running);

      var port_element = document.getElementById('port');
      port_element.value = response['port'];
      port_element.disabled = false;
    }
  });
}

function startServer() {  
  var port = parseInt(document.getElementById('port').value);
  if (port < 1025 || port > 65535) {
    alert('Specify a port number between 1025 and 65535');
    return;
  }

  setButtonState(false, false);

  sendMessage({'action':'start', 'port':port}, function(response) {
    if (response['result'] == 'success') {
      setButtonState(false, true);
    } else {
      setButtonState(true, false);
      alert(response['message']);
    }
  });
}

function stopServer() {
  setButtonState(false, false);

  sendMessage({'action':'stop'}, function(response) {
    if (response['result'] == 'success') {
      setButtonState(true, false);
    } else {
      setButtonState(false, true);
      alert(response['message']);
    }
  });
}

function openServer() {
  var port = document.getElementById('port').value;
  window.open('http://localhost:' + port);
}

</script>

</head>
<body bgcolor="white" onload="setup()">
<div id="warning" style="display:none;color:red;font-weight:bold;">
This page can only be run from the https://tests origin.
</div>
<p>
This page starts an HTTP/WebSocket server on localhost with the specified port number.
After starting the server click the "Open Example" button to open the WebSocket Client test in a popup window.
</p>
<p>
With this example each browser window can create/manage a separate server instance.
The server will be stopped automatically when the managing browser window is closed.
</p>
<form>
Server port: <input type="text" id="port" value="" disabled="true">
<br/><input type="button" id="start" onclick="startServer()" value="Start Server" disabled="true">
<input type="button" id="stop" onclick="stopServer()" value="Stop Server" disabled="true">
<input type="button" id="open" onclick="openServer()" value="Open Example" disabled="true">
</form>
</body>
</html>