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add websocks demo

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This commit is contained in:
Jeff Becker 2016-12-11 12:21:34 -05:00
parent cfb673326e
commit 78dfcc4742
2 changed files with 209 additions and 0 deletions
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14
websocks-demo/index.html Normal file
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<!doctype html>
<html>
<head>
<title> irc client with WebSOCKS </title>
<script src="websocks.js" type="text/javascript"></script>
<link rel="stylesheet" href="style.css"></link>
</head>
<body>
<label for="ws-server">WebSOCKS server:</label><input id="ws-server" value="ws://127.0.0.1:7766/"></input>
<input id="irc-server" value="irc.dg.i2p"></input>
<button onclick="ws_try_connect()">connect</button>
<div id="irc-window">
</div>
</html>

195
websocks-demo/websocks.js Normal file
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function ws_try_connect()
{
var elem = document.getElementById("irc-window");
elem.remove();
elem = document.createElement("div");
elem.id ="irc-window";
document.body.appendChild(elem);
var text_e = document.createElement("pre");
text_e.setAttribute("class", "text-window");
elem.appendChild(text_e);
var input = document.createElement("input");
elem.appendChild(input);
var irc = {
connected: 0,
line_in: "",
target: "",
nick: "ebin",
};
function irc_ui_println(line)
{
if(line == "") return;
var node = document.createTextNode(line);
var e = document.createElement("div");
e.appendChild(node);
text_e.appendChild(e);
while(text_e.children.length > 20) {
text_e.children[0].remove();
}
}
function irc_on_privmsg(src, msg)
{
var parts = src.split("!");
src = parts[0].slice(1);
irc_ui_println("<"+src+ "> "+msg);
}
function irc_process_in(conn)
{
var line = irc.line_in.trim();
console.log("--> "+line);
if(line.startsWith("PING ")) {
// handle ping
irc_sendline(conn, "PONG "+line.slice(5));
return;
}
var parts = line.split(" ");
if (parts.length > 2) {
var src = parts[0];
var cmd = parts[1];
var target = parts[2];
if (cmd == "PRIVMSG") {
var idx = line.indexOf(target);
var msg = line.slice(idx+target.length+2);
irc_on_privmsg(src, msg);
return;
}
if(cmd == "PONG") return;
}
irc_ui_println(line);
}
function irc_data(conn, data)
{
data = irc.line_in + data;
var lines = data.split("\n");
for(var idx = 0; idx < lines.length; idx++) {
irc.line_in = lines [idx] + "\n";
irc_process_in(conn);
}
}
function irc_sendline(conn, line)
{
console.log("<-- "+ line);
conn.send(line + "\n");
}
function irc_privmsg(conn, target, msg)
{
irc_ui_println("<"+irc.nick+"> "+msg);
irc_sendline(conn, "PRIVMSG "+target+" :"+msg);
}
function irc_join_channel(conn, chnl)
{
irc_sendline(conn, "JOIN "+chnl);
}
function handle_input_command(conn, arg, params)
{
arg = arg.toLowerCase();
if (arg == "j" || arg == "join") {
for (var idx = 0 ; idx < params.length; idx ++) {
irc_join_channel(conn, params[idx]);
}
}
if(arg == "n" || arg == "nick") {
irc_sendline(conn, "NICK "+params[0]);
return;
}
if(arg == "q" || arg == "quit") {
irc_sendline(conn, "QUIT");
clearInterval(irc.pinger);
irc.connected = 0;
return;
}
if(arg == "t" || arg == "target") {
irc.target = params[0];
return;
}
}
function handle_input_line(conn, line)
{
if(line[0] == "/") {
var parts = line.split(" ");
handle_input_command(conn, parts[0].slice(1), parts.slice(1));
} else {
irc_privmsg(conn, irc.target, line);
}
}
function irc_connected(conn, url)
{
console.log("connected to irc");
irc_ui_println("connecting to "+url+"...");
// send user command
irc_sendline(conn, "NICK "+irc.nick);
irc_sendline(conn, "USER "+irc.nick+" "+irc.nick+" "+irc.nick+" :"+irc.nick);
irc.pinger = setInterval(function(){
if(irc.connected) {
irc_sendline(conn, "PING :i-hate-tcp-lol-"+new Date().getTime());
}
}, 10000);
input.addEventListener("keypress", function(ev){
// handle enter key
switch(ev.key) {
case "Enter":
handle_input_line(conn, input.value);
ev.preventDefault();
input.value = "";
}
return;
});
}
var e = document.getElementById("ws-server");
var ws = new WebSocket(e.value);
e = document.getElementById("irc-server");
var irc_url = e.value;
ws.onclose = function(err) {
console.log("connection closed "+err);
irc.connected = 0;
clearInterval(irc.pinger);
irc_ui_println("connection closed");
}
ws.onopen = function(ev) {
console.log("connect to "+irc_url);
ws.send(irc_url);
}
ws.onmessage = function(ev) {
var data = ev.data;
if(irc.connected) {
irc_data(ws, data);
} else {
var j = JSON.parse(data);
if(j.error) {
console.log("WebSOCKS error: "+j.error);
console.log("try again");
setTimeout(function() {
ws.send(irc_url);
}, 1000);
}
irc.connected = j.success == "1";
if(irc.connected) {
irc_connected(ws, irc_url);
}
}
}
}