132 lines
4.1 KiB
HTML
132 lines
4.1 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8" />
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<title></title>
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<script>
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function hubConnection(url) {
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var ws = new WebSocket(url);
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var id = 0;
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var calls = {};
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var methods = {};
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ws.onopen = function () {
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console.log('Opened!');
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};
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ws.onmessage = function (event) {
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let response = {};
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if (document.getElementById('formatType').value == 'line') {
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let parts = event.data.split(',');
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if (event.data[0] == 'R') {
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response.Id = parts[0].slice(2);
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response.Result = parts[1].slice(1);
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}
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else if (event.data[0] == 'C') {
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response.Method = parts[1].slice(1);
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response.Arguments = parts.slice(2).join();
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}
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else {
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response.error = parts[0].slice(1);
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}
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}
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else {
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response = JSON.parse(event.data);
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}
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// Response
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if (response.Id) {
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var cb = calls[response.Id];
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delete calls[response.Id];
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if (response.error) {
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cb.error(response.error);
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}
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else {
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cb.success(response.result);
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}
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}
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else {
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// Reverse JSON RPC
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methods[response.Method](response.Arguments);
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}
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};
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ws.onclose = function (event) {
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console.log('Closed!');
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};
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this.invoke = function (method, args, formatType) {
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return new Promise((resolve, reject) => {
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calls[id] = { success: resolve, error: reject };
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if (formatType == 'line') {
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ws.send(`CI${id},M${method},${args.join()}\n`);
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}
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else {
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ws.send(JSON.stringify({ method: method, arguments: args, id: id }));
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}
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id++;
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});
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};
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this.on = function (method, fn) {
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methods[method] = fn;
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};
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}
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document.addEventListener('DOMContentLoaded', () => {
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let connectButton = document.getElementById('connect');
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connectButton.addEventListener('click', () => {
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run(document.getElementById('formatType').value);
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connectButton.disabled = true;
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});
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});
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function run(formatType) {
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var conn = new hubConnection(`ws://${document.location.host}/hubs/ws?formatType=${formatType}`);
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conn.on('Send', function (message) {
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var child = document.createElement('li');
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child.innerText = message;
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document.getElementById('messages').appendChild(child);
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});
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document.getElementById('sendmessage').addEventListener('submit', event => {
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let data = document.getElementById('data').value;
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conn.invoke('SocketsSample.Hubs.Chat.Send', [data], formatType).catch(err => {
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var child = document.createElement('li');
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child.style.color = 'red';
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child.innerText = err;
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document.getElementById('messages').appendChild(child);
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});
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event.preventDefault();
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});
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};
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</script>
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</head>
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<body>
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<h1>WebSockets</h1>
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<div>
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<select id="formatType">
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<option value="json">json</option>
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<option value="line">line</option>
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</select>
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<input type="button" id="connect" value="Connect" />
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</div>
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<form id="sendmessage">
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<input type="text" id="data" />
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<input type="submit" value="Send" />
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</form>
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<ul id="messages"></ul>
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</body>
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</html> |