First step for realtime in onlyoffice apps
yflory
6 years ago
parent
41a1148c17
commit
efdecd4059
@ -0,0 +1,191 @@
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define([
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'/common/common-util.js',
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'/common/common-constants.js',
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'/customize/messages.js',
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'/bower_components/chainpad-crypto/crypto.js',
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], function (Util, Constants, Messages, Crypto) {
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var OO = {};
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var convertToUint8 = function (obj) {
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var l = Object.keys(obj).length;
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var u = new Uint8Array(l);
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for (var i = 0; i<l; i++) {
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u[i] = obj[i];
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}
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return u;
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};
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var openChannel = function (ctx, obj, client, cb) {
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var channel = obj.channel;
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var secret = obj.secret;
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if (secret.keys.cryptKey) {
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secret.keys.cryptKey = convertToUint8(secret.keys.cryptKey);
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}
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var padChan = secret.channel;
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var network = ctx.store.network;
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var first = true;
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var c = ctx.clients[client];
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if (!c) {
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c = ctx.clients[client] = {
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channel: channel,
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padChan: padChan,
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};
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} else {
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return void cb();
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}
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var chan = ctx.channels[channel];
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if (chan) {
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// This channel is already open in another tab
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// ==> Set the ID to our client object
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if (!c.id) { c.id = chan.wc.myID + '-' + client; }
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// ==> Send the join message to the other members of the channel
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// XXX bcast a "join" message to the channel?
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// ==> And push the new tab to the list
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chan.clients.push(client);
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return void cb();
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}
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var onOpen = function (wc) {
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ctx.channels[channel] = ctx.channels[channel] || {};
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var chan = ctx.channels[channel];
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if (!c.id) { c.id = wc.myID + '-' + client; }
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if (chan.clients) {
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// If 2 tabs from the same worker have been opened at the same time,
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// we have to fix both of them
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chan.clients.forEach(function (cl) {
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if (ctx.clients[cl] && !ctx.clients[cl].id) {
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ctx.clients[cl].id = wc.myID + '-' + cl;
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}
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});
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}
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if (!chan.encryptor) { chan.encryptor = Crypto.createEncryptor(secret.keys); }
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wc.on('join', function () {
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// XXX
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});
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wc.on('leave', function (peer) {
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// XXX
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});
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wc.on('message', function (cryptMsg) {
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var msg = chan.encryptor.decrypt(cryptMsg, secret.keys && secret.keys.validateKey);
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var parsed;
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try {
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parsed = JSON.parse(msg);
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// XXX
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} catch (e) { console.error(e); }
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});
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chan.wc = wc;
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chan.sendMsg = function (msg, cb) {
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cb = cb || function () {};
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var cmsg = chan.encryptor.encrypt(msg);
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wc.bcast(cmsg).then(function () {
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cb();
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}, function (err) {
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cb({error: err});
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});
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};
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if (!first) { return; }
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chan.clients = [client];
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first = false;
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cb();
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};
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network.join(channel).then(onOpen, function (err) {
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return void cb({error: err});
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});
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network.on('reconnect', function () {
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if (!ctx.channels[channel]) { console.log("cant reconnect", channel); return; }
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network.join(channel).then(onOpen, function (err) {
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console.error(err);
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});
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});
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};
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var leaveChannel = function (ctx, padChan) {
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// Leave channel and prevent reconnect when we leave a pad
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Object.keys(ctx.channels).some(function (ooChan) {
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var channel = ctx.channels[ooChan];
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if (channel.padChan !== padChan) { return; }
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if (channel.wc) { channel.wc.leave(); }
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delete ctx.channels[ooChan];
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return true;
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});
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};
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// Remove the client from all its channels when a tab is closed
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var removeClient = function (ctx, clientId) {
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var filter = function (c) {
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return c !== clientId;
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};
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// Remove the client from our channels
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var chan;
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for (var k in ctx.channels) {
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chan = ctx.channels[k];
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chan.clients = chan.clients.filter(filter);
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if (chan.clients.length === 0) {
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if (chan.wc) { chan.wc.leave(); }
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delete ctx.channels[k];
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}
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}
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// Send the leave message to the channel we were in
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if (ctx.clients[clientId]) {
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var leaveMsg = {
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leave: true,
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id: ctx.clients[clientId].id
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};
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chan = ctx.channels[ctx.clients[clientId].channel];
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if (chan) {
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chan.sendMsg(JSON.stringify(leaveMsg));
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ctx.emit('MESSAGE', leaveMsg, chan.clients);
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}
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}
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delete ctx.clients[clientId];
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};
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OO.init = function (store, emit) {
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var oo = {};
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var ctx = {
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store: store,
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emit: emit,
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channels: {},
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clients: {}
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};
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oo.removeClient = function (clientId) {
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removeClient(ctx, clientId);
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};
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oo.leavePad = function (padChan) {
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leaveChannel(ctx, padChan);
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};
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oo.execCommand = function (clientId, obj, cb) {
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var cmd = obj.cmd;
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var data = obj.data;
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if (cmd === 'OPEN_CHANNEL') {
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return void openChannel(ctx, data, clientId, cb);
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}
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};
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return cursor;
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};
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return OO;
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});
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