<!--
websocketd console
Full documentation at http://websocketd.com/
{{license}}
-->
<!DOCTYPE html>
<meta charset="utf8">
<title>websocketd console</title>
<style>
.template {
display: none !important;
}
body, input {
font-family: dejavu sans mono, Menlo, Monaco, Consolas, Lucida Console, tahoma, arial;
font-size: 13px;
}
body {
margin: 0;
}
.header {
background-color: #efefef;
padding: 2px;
position: absolute;
top: 0;
left: 0;
right: 0;
height: 32px;
}
.header button {
font-size: 19px;
width: 30px;
margin: 2px 2px 0 2px;
padding: 0;
float: left;
}
.header .url-holder {
position: absolute;
left: 38px;
top: 4px;
right: 14px;
bottom: 9px;
}
.header .url {
border: 1px solid #999;
background-color: #fff;
width: 100%;
height: 100%;
border-radius: 2px;
padding-left: 4px;
padding-right: 4px;
}
.messages {
overflow-y: scroll;
position: absolute;
left: 0;
right: 0;
top: 36px;
bottom: 0;
border-top: 1px solid #ccc;
}
.message {
border-bottom: 1px solid #bbb;
padding: 2px;
}
.message-type {
font-weight: bold;
position: absolute;
width: 80px;
display: block;
}
.message-data {
margin-left: 90px;
display: block;
word-wrap: break-word;
white-space: pre;
}
.type-input,
.type-send {
background-color: #ffe;
}
.type-onmessage {
background-color: #eef;
}
.type-open,
.type-onopen {
background-color: #efe;
}
.type-close,
.type-onclose {
background-color: #fee;
}
.type-onerror,
.type-exception {
background-color: #333;
color: #f99;
}
.type-send .message-type,
.type-onmessage .message-type {
opacity: 0.2;
}
.type-input .message-type {
color: #090;
}
.send-input {
width: 100%;
border: 0;
padding: 0;
margin: -1px;
background-color: inherit;
}
.send-input:focus {
outline: none;
}
</style>
<header class="header">
<button class="disconnect" title="Disconnect" style="display:none">×</button>
<button class="connect" title="Connect" style="display:none">✔</button>
<div class="url-holder">
<input class="url" type="text" value="{{addr}}" spellcheck="false">
</div>
</header>
<section class="messages">
<div class="message template">
<span class="message-type"></span>
<span class="message-data"></span>
</div>
<div class="message type-input">
<span class="message-type">send »</span>
<span class="message-data"><input type="text" class="send-input" spellcheck="false"></span>
</div>
</section>
<script>
var ws = null;
function ready() {
select('.connect').style.display = 'block';
select('.disconnect').style.display = 'none';
select('.connect').addEventListener('click', function() {
connect(select('.url').value);
});
select('.disconnect').addEventListener('click', function() {
disconnect();
});
select('.url').focus();
select('.url').addEventListener('keydown', function(ev) {
var code = ev.which || ev.keyCode;
// Enter key pressed
if (code == 13) {
updatePageUrl();
connect(select('.url').value);
}
});
select('.url').addEventListener('change', updatePageUrl);
select('.send-input').addEventListener('keydown', function(ev) {
var code = ev.which || ev.keyCode;
// Enter key pressed
if (code == 13) {
var msg = select('.send-input').value;
select('.send-input').value = '';
send(msg);
}
// Up key pressed
if (code == 38) {
moveThroughSendHistory(1);
}
// Down key pressed
if (code == 40) {
moveThroughSendHistory(-1);
}
});
window.addEventListener('popstate', updateWebSocketUrl);
updateWebSocketUrl();
}
function updatePageUrl() {
var match = select('.url').value.match(new RegExp('^(ws)(s)?://([^/]*)(/.*)$'));
if (match) {
var pageUrlSuffix = match[4];
if (history.state != pageUrlSuffix) {
history.pushState(pageUrlSuffix, pageUrlSuffix, pageUrlSuffix);
}
}
}
function updateWebSocketUrl() {
var match = location.href.match(new RegExp('^(http)(s)?://([^/]*)(/.*)$'));
if (match) {
var wsUrl = 'ws' + (match[2] || '') + '://' + match[3] + match[4];
select('.url').value = wsUrl;
}
}
function appendMessage(type, data) {
var template = select('.message.template');
var el = template.parentElement.insertBefore(template.cloneNode(true), select('.message.type-input'));
el.classList.remove('template');
el.classList.add('type-' + type.toLowerCase());
el.querySelector('.message-type').textContent = type;
el.querySelector('.message-data').textContent = data || '';
el.querySelector('.message-data').innerHTML += ' ';
el.scrollIntoView(true);
}
function connect(url) {
function action() {
appendMessage('open', url);
try {
ws = new WebSocket(url);
} catch (ex) {
appendMessage('exception', 'Cannot connect: ' + ex);
return;
}
select('.connect').style.display = 'none';
select('.disconnect').style.display = 'block';
ws.addEventListener('open', function(ev) {
appendMessage('onopen');
});
ws.addEventListener('close', function(ev) {
select('.connect').style.display = 'block';
select('.disconnect').style.display = 'none';
appendMessage('onclose', '[Clean: ' + ev.wasClean + ', Code: ' + ev.code + ', Reason: ' + (ev.reason || 'none') + ']');
ws = null;
select('.url').focus();
});
ws.addEventListener('message', function(ev) {
if (typeof(ev.data) == "object") {
var rd = new FileReader();
rd.onload = function(ev){
appendMessage('onmessage', "BLOB: "+rd.result);
};
rd.readAsBinaryString(ev.data);
} else {
appendMessage('onmessage', ev.data);
}
});
ws.addEventListener('error', function(ev) {
appendMessage('onerror');
});
select('.send-input').focus();
}
if (ws) {
ws.addEventListener('close', function(ev) {
action();
});
disconnect();
} else {
action();
}
}
function disconnect() {
if (ws) {
appendMessage('close');
ws.close();
}
}
function send(msg) {
appendToSendHistory(msg);
appendMessage('send', msg);
if (ws) {
try {
ws.send(msg);
} catch (ex) {
appendMessage('exception', 'Cannot send: ' + ex);
}
} else {
appendMessage('exception', 'Cannot send: Not connected');
}
}
function select(selector) {
return document.querySelector(selector);
}
var maxSendHistorySize = 100;
currentSendHistoryPosition = -1,
sendHistoryRollback = '';
function appendToSendHistory(msg) {
currentSendHistoryPosition = -1;
sendHistoryRollback = '';
var sendHistory = JSON.parse(localStorage['websocketdconsole.sendhistory'] || '[]');
if (sendHistory[0] !== msg) {
sendHistory.unshift(msg);
while (sendHistory.length > maxSendHistorySize) {
sendHistory.pop();
}
localStorage['websocketdconsole.sendhistory'] = JSON.stringify(sendHistory);
}
}
function moveThroughSendHistory(offset) {
if (currentSendHistoryPosition == -1) {
sendHistoryRollback = select('.send-input').value;
}
var sendHistory = JSON.parse(localStorage['websocketdconsole.sendhistory'] || '[]');
currentSendHistoryPosition += offset;
currentSendHistoryPosition = Math.max(-1, Math.min(sendHistory.length - 1, currentSendHistoryPosition));
var el = select('.send-input');
el.value = currentSendHistoryPosition == -1
? sendHistoryRollback
: sendHistory[currentSendHistoryPosition];
setTimeout(function() {
el.setSelectionRange(el.value.length, el.value.length);
}, 0);
}
document.addEventListener("DOMContentLoaded", ready, false);
</script>