693 lines
26 KiB
JavaScript
693 lines
26 KiB
JavaScript
define([
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'jquery',
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'/bower_components/chainpad-crypto/crypto.js',
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'/common/curve.js',
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'/common/common-hash.js',
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'/common/common-realtime.js'
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// '/bower_components/marked/marked.min.js'
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], function ($, Crypto, Curve, Hash, Realtime) {
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var Msg = {
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inputs: [],
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};
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var Types = {
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message: 'MSG',
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update: 'UPDATE',
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unfriend: 'UNFRIEND',
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mapId: 'MAP_ID',
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mapIdAck: 'MAP_ID_ACK'
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};
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// TODO
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// - mute a channel (hide notifications or don't open it?)
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var ready = [];
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var pending = {};
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var pendingRequests = [];
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var createData = Msg.createData = function (proxy, hash) {
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return {
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channel: hash || Hash.createChannelId(),
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displayName: proxy['cryptpad.username'],
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profile: proxy.profile && proxy.profile.view,
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edPublic: proxy.edPublic,
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curvePublic: proxy.curvePublic,
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avatar: proxy.profile && proxy.profile.avatar
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};
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};
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var getFriend = function (proxy, pubkey) {
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if (pubkey === proxy.curvePublic) {
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var data = createData(proxy);
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delete data.channel;
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return data;
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}
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return proxy.friends ? proxy.friends[pubkey] : undefined;
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};
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var removeFromFriendList = function (proxy, realtime, curvePublic, cb) {
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if (!proxy.friends) { return; }
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var friends = proxy.friends;
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delete friends[curvePublic];
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Realtime.whenRealtimeSyncs(realtime, cb);
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};
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var getFriendList = Msg.getFriendList = function (proxy) {
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if (!proxy.friends) { proxy.friends = {}; }
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return proxy.friends;
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};
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var eachFriend = function (friends, cb) {
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Object.keys(friends).forEach(function (id) {
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if (id === 'me') { return; }
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cb(friends[id], id, friends);
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});
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};
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Msg.getFriendChannelsList = function (proxy) {
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var list = [];
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eachFriend(proxy, function (friend) {
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list.push(friend.channel);
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});
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return list;
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};
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var msgAlreadyKnown = function (channel, sig) {
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return channel.messages.some(function (message) {
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return message[0] === sig;
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});
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};
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var getMoreHistory = function (network, chan, hash, count) {
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var msg = [ 'GET_HISTORY_RANGE', chan.id, {
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from: hash,
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count: count,
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}
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];
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network.sendto(network.historyKeeper, JSON.stringify(msg)).then(function () {
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}, function (err) {
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throw new Error(err);
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});
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};
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var getChannelMessagesSince = function (network, proxy, chan, data, keys) {
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var cfg = {
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validateKey: keys.validateKey,
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owners: [proxy.edPublic, data.edPublic],
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lastKnownHash: data.lastKnownHash
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};
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var msg = ['GET_HISTORY', chan.id, cfg];
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network.sendto(network.historyKeeper, JSON.stringify(msg))
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.then($.noop, function (err) {
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throw new Error(err);
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});
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};
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Msg.messenger = function (common) {
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var messenger = {};
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var DEBUG = function (label) {
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console.log('event:' + label);
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};
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var channels = messenger.channels = {};
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// declare common variables
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var network = common.getNetwork();
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var proxy = common.getProxy();
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var realtime = common.getRealtime();
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Msg.hk = network.historyKeeper;
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var friends = getFriendList(proxy);
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// Id message allows us to map a netfluxId with a public curve key
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var onIdMessage = function (msg, sender) {
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var channel;
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var isId = Object.keys(channels).some(function (chanId) {
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if (channels[chanId].userList.indexOf(sender) !== -1) {
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channel = channels[chanId];
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return true;
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}
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});
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if (!isId) { return; }
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var decryptedMsg = channel.encryptor.decrypt(msg);
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if (decryptedMsg === null) {
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// console.error('unable to decrypt message');
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// console.error('potentially meant for yourself');
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// message failed to parse, meaning somebody sent it to you but
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// encrypted it with the wrong key, or you're sending a message to
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// yourself in a different tab.
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return;
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}
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if (!decryptedMsg) {
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console.error('decrypted message was falsey but not null');
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return;
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}
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var parsed;
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try {
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parsed = JSON.parse(decryptedMsg);
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} catch (e) {
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console.error(decryptedMsg);
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return;
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}
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if (parsed[0] !== Types.mapId && parsed[0] !== Types.mapIdAck) { return; }
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// check that the responding peer's encrypted netflux id matches
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// the sender field. This is to prevent replay attacks.
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if (parsed[2] !== sender || !parsed[1]) { return; }
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channel.mapId[sender] = parsed[1];
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channel.updateStatus();
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if (parsed[0] !== Types.mapId) { return; } // Don't send your key if it's already an ACK
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// Answer with your own key
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var rMsg = [Types.mapIdAck, proxy.curvePublic, channel.wc.myID];
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var rMsgStr = JSON.stringify(rMsg);
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var cryptMsg = channel.encryptor.encrypt(rMsgStr);
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network.sendto(sender, cryptMsg);
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};
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var pushMsg = function (channel, cryptMsg) {
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var msg = channel.encryptor.decrypt(cryptMsg);
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// TODO emit new message event or something
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// extension point for other apps
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console.log(msg);
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var sig = cryptMsg.slice(0, 64);
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if (msgAlreadyKnown(channel, sig)) { return; }
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var parsedMsg = JSON.parse(msg);
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if (parsedMsg[0] === Types.message) {
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// TODO validate messages here
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var res = {
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type: parsedMsg[0],
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sig: sig,
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channel: parsedMsg[1],
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time: parsedMsg[2],
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text: parsedMsg[3],
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};
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channel.messages.push(res);
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return true;
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}
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if (parsedMsg[0] === Types.update) {
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if (parsedMsg[1] === proxy.curvePublic) { return; }
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var newdata = parsedMsg[3];
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var data = getFriend(proxy, parsedMsg[1]);
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var types = [];
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Object.keys(newdata).forEach(function (k) {
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if (data[k] !== newdata[k]) {
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types.push(k);
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data[k] = newdata[k];
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}
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});
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channel.updateUI(types);
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return;
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}
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if (parsedMsg[0] === Types.unfriend) {
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removeFromFriendList(proxy, realtime, channel.friendEd, function () {
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channel.wc.leave(Types.unfriend);
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channel.removeUI();
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});
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return;
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}
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};
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/* Broadcast a display name, profile, or avatar change to all contacts
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*/
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var updateMyData = function (proxy) {
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var friends = getFriendList(proxy);
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var mySyncData = friends.me;
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var myData = createData(proxy);
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if (!mySyncData || mySyncData.displayName !== myData.displayName
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|| mySyncData.profile !== myData.profile
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|| mySyncData.avatar !== myData.avatar) {
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delete myData.channel;
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Object.keys(channels).forEach(function (chan) {
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var channel = channels[chan];
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var msg = [Types.update, myData.curvePublic, +new Date(), myData];
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var msgStr = JSON.stringify(msg);
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var cryptMsg = channel.encryptor.encrypt(msgStr);
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channel.wc.bcast(cryptMsg).then(function () {
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channel.refresh();
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}, function (err) {
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console.error(err);
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});
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});
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friends.me = myData;
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}
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};
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var onChannelReady = function (proxy, chanId) {
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if (ready.indexOf(chanId) !== -1) { return; }
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ready.push(chanId);
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channels[chanId].updateStatus(); // c'est quoi?
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var friends = getFriendList(proxy);
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if (ready.length === Object.keys(friends).length) {
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// All channels are ready
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updateMyData(proxy);
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}
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return ready.length;
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};
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var onDirectMessage = function (common, msg, sender) {
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if (sender !== Msg.hk) { return void onIdMessage(msg, sender); }
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var parsed = JSON.parse(msg);
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if ((parsed.validateKey || parsed.owners) && parsed.channel) {
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return;
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}
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if (parsed.state && parsed.state === 1 && parsed.channel) {
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if (channels[parsed.channel]) {
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// parsed.channel is Ready
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// TODO: call a function that shows that the channel is ready? (remove a spinner, ...)
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// channel[parsed.channel].ready();
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channels[parsed.channel].ready = true;
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onChannelReady(proxy, parsed.channel);
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var updateTypes = channels[parsed.channel].updateOnReady;
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if (updateTypes) {
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channels[parsed.channel].updateUI(updateTypes);
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}
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}
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return;
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}
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var chan = parsed[3];
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if (!chan || !channels[chan]) { return; }
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pushMsg(channels[chan], parsed[4]);
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channels[chan].refresh();
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};
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var onMessage = function (common, msg, sender, chan) {
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if (!channels[chan.id]) { return; }
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var realtime = common.getRealtime();
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var proxy = common.getProxy();
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var isMessage = pushMsg(channels[chan.id], msg);
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if (isMessage) {
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// Don't notify for your own messages
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if (channels[chan.id].wc.myID !== sender) {
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channels[chan.id].notify();
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}
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channels[chan.id].refresh();
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}
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};
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// listen for messages...
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network.on('message', function(msg, sender) {
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onDirectMessage(common, msg, sender);
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});
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// Refresh the active channel
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// TODO extract into UI method
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var refresh = function (/*curvePublic*/) {
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return;
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/*
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if (messenger.active !== curvePublic) { return; }
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var data = friends[curvePublic];
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if (!data) { return; }
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var channel = channels[data.channel];
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if (!channel) { return; }
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var $chat = ui.getChannel(curvePublic);
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if (!$chat) { return; }
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// Add new messages
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var messages = channel.messages;
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var $messages = $chat.find('.messages');
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var msg, name;
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var last = typeof(channel.lastDisplayed) === 'number'? channel.lastDisplayed: -1;
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for (var i = last + 1; i<messages.length; i++) {
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msg = messages[i];
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name = (msg.channel !== channel.lastSender)?
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getFriend(proxy, msg.channel).displayName: undefined;
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ui.createMessage(msg, name).appendTo($messages);
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channel.lastSender = msg.channel;
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}
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$messages.scrollTop($messages[0].scrollHeight);
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channel.lastDisplayed = i-1;
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channel.unnotify();
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// return void channel.notify();
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if (messages.length > 10) {
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var lastKnownMsg = messages[messages.length - 11];
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channel.setLastMessageRead(lastKnownMsg.sig);
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}*/
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};
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// Display a new channel
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// TODO extract into UI method
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//var display = function (curvePublic) {
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//curvePublic = curvePublic;
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/*
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ui.hideInfo();
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var $chat = ui.getChannel(curvePublic);
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if (!$chat) {
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$chat = ui.createChat(curvePublic);
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ui.createChatBox(proxy, $chat, curvePublic);
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}
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// Show the correct div
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ui.hideChat();
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$chat.show();
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// TODO set this attr per-messenger
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messenger.setActive(curvePublic);
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// TODO don't mark messages as read unless you have displayed them
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refresh(curvePublic);*/
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//};
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// TODO take a callback
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var remove = function (curvePublic) {
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var data = getFriend(proxy, curvePublic);
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var channel = channels[data.channel];
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var msg = [Types.unfriend, proxy.curvePublic, +new Date()];
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var msgStr = JSON.stringify(msg);
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var cryptMsg = channel.encryptor.encrypt(msgStr);
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channel.wc.bcast(cryptMsg).then(function () {
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removeFromFriendList(common, curvePublic, function () {
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channel.wc.leave(Types.unfriend);
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channel.removeUI();
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});
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}, function (err) {
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console.error(err);
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});
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};
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// Open the channels
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var openFriendChannel = function (data, f) {
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var keys = Curve.deriveKeys(data.curvePublic, proxy.curvePrivate);
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var encryptor = Curve.createEncryptor(keys);
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network.join(data.channel).then(function (chan) {
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var channel = channels[data.channel] = {
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sending: false,
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friendEd: f,
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keys: keys,
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encryptor: encryptor,
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messages: [],
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unfriend: function () {
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DEBUG('unfriend');
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remove(data.curvePublic);
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},
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refresh: function () {
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DEBUG('refresh');
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refresh(data.curvePublic);
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},
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notify: function () {
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//ui.notify(data.curvePublic);
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DEBUG('notify');
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common.notify(); // HERE
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},
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unnotify: function () {
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DEBUG('unnotify');
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//ui.unnotify(data.curvePublic);
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},
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removeUI: function () {
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DEBUG('remove-ui');
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//ui.remove(data.curvePublic);
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},
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updateUI: function (/*types*/) {
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DEBUG('update-ui');
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//ui.update(data.curvePublic, types);
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},
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updateStatus: function () {
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DEBUG('update-status');
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//ui.updateStatus(data.curvePublic,
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//channel.getStatus(data.curvePublic));
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},
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setLastMessageRead: function (hash) {
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DEBUG('updateLastKnownHash');
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data.lastKnownHash = hash;
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},
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getLastMessageRead: function () {
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return data.lastKnownHash;
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},
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isActive: function () {
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return data.curvePublic === messenger.active;
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},
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getMessagesSinceDisconnect: function () {
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getChannelMessagesSince(network, proxy, chan, data, keys);
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},
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wc: chan,
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userList: [],
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mapId: {},
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getStatus: function (curvePublic) {
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return channel.userList.some(function (nId) {
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return channel.mapId[nId] === curvePublic;
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});
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},
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getPreviousMessages: function () {
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var history = channel.messages;
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if (!history || !history.length) {
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// TODO ask for default history?
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return;
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}
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var oldestMessage = history[0];
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if (!oldestMessage) {
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return; // nothing to fetch
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}
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var messageHash = oldestMessage[0];
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getMoreHistory(network, chan, messageHash, 10);
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},
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send: function (payload, cb) {
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if (!network.webChannels.some(function (wc) {
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if (wc.id === channel.wc.id) { return true; }
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})) {
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return void cb('NO_SUCH_CHANNEL');
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}
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var msg = [Types.message, proxy.curvePublic, +new Date(), payload];
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var msgStr = JSON.stringify(msg);
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var cryptMsg = channel.encryptor.encrypt(msgStr);
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channel.wc.bcast(cryptMsg).then(function () {
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pushMsg(channel, cryptMsg);
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cb();
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}, function (err) {
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cb(err);
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});
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},
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};
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chan.on('message', function (msg, sender) {
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onMessage(common, msg, sender, chan);
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});
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var onJoining = function (peer) {
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if (peer === Msg.hk) { return; }
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if (channel.userList.indexOf(peer) !== -1) { return; }
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channel.userList.push(peer);
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var msg = [Types.mapId, proxy.curvePublic, chan.myID];
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var msgStr = JSON.stringify(msg);
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var cryptMsg = channel.encryptor.encrypt(msgStr);
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network.sendto(peer, cryptMsg);
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channel.updateStatus();
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};
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chan.members.forEach(function (peer) {
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if (peer === Msg.hk) { return; }
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if (channel.userList.indexOf(peer) !== -1) { return; }
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channel.userList.push(peer);
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});
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chan.on('join', onJoining);
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chan.on('leave', function (peer) {
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var i = channel.userList.indexOf(peer);
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while (i !== -1) {
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channel.userList.splice(i, 1);
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i = channel.userList.indexOf(peer);
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}
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channel.updateStatus();
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});
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getChannelMessagesSince(network, proxy, chan, data, keys);
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}, function (err) {
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console.error(err);
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});
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};
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messenger.getLatestMessages = function () {
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Object.keys(channels).forEach(function (id) {
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if (id === 'me') { return; }
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var friend = channels[id];
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friend.getMessagesSinceDisconnect();
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friend.refresh();
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});
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};
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messenger.cleanFriendChannels = function () {
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Object.keys(channels).forEach(function (id) {
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delete channels[id];
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});
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};
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var openFriendChannels = messenger.openFriendChannels = function () {
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eachFriend(friends, openFriendChannel);
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};
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//messenger.setEditable = ui.setEditable;
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openFriendChannels();
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// TODO split loop innards into ui methods
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var checkNewFriends = function () {
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eachFriend(friends, function (friend, id) {
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if (!channels[id]) {
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openFriendChannel(friend, id);
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}
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});
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};
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common.onDisplayNameChanged(function () {
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checkNewFriends();
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updateMyData(proxy);
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});
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return messenger;
|
||
};
|
||
|
||
// Invitation
|
||
// FIXME there are too many functions with this name
|
||
var addToFriendList = Msg.addToFriendList = function (common, data, cb) {
|
||
var proxy = common.getProxy();
|
||
var friends = getFriendList(proxy);
|
||
var pubKey = data.curvePublic;
|
||
|
||
if (pubKey === proxy.curvePublic) { return void cb("E_MYKEY"); }
|
||
|
||
friends[pubKey] = data;
|
||
|
||
Realtime.whenRealtimeSyncs(common.getRealtime(), function () {
|
||
cb();
|
||
common.pinPads([data.channel]);
|
||
});
|
||
common.changeDisplayName(proxy[common.displayNameKey]);
|
||
};
|
||
|
||
/* Used to accept friend requests within apps other than /contacts/ */
|
||
Msg.addDirectMessageHandler = function (common) {
|
||
var network = common.getNetwork();
|
||
var proxy = common.getProxy();
|
||
if (!network) { return void console.error('Network not ready'); }
|
||
network.on('message', function (message, sender) {
|
||
var msg;
|
||
if (sender === network.historyKeeper) { return; }
|
||
try {
|
||
var parsed = common.parsePadUrl(window.location.href);
|
||
if (!parsed.hashData) { return; }
|
||
var chan = parsed.hashData.channel;
|
||
// Decrypt
|
||
var keyStr = parsed.hashData.key;
|
||
var cryptor = Crypto.createEditCryptor(keyStr);
|
||
var key = cryptor.cryptKey;
|
||
var decryptMsg;
|
||
try {
|
||
decryptMsg = Crypto.decrypt(message, key);
|
||
} catch (e) {
|
||
// If we can't decrypt, it means it is not a friend request message
|
||
}
|
||
if (!decryptMsg) { return; }
|
||
// Parse
|
||
msg = JSON.parse(decryptMsg);
|
||
if (msg[1] !== parsed.hashData.channel) { return; }
|
||
var msgData = msg[2];
|
||
var msgStr;
|
||
if (msg[0] === "FRIEND_REQ") {
|
||
msg = ["FRIEND_REQ_NOK", chan];
|
||
var todo = function (yes) {
|
||
if (yes) {
|
||
pending[sender] = msgData;
|
||
msg = ["FRIEND_REQ_OK", chan, createData(common, msgData.channel)];
|
||
}
|
||
msgStr = Crypto.encrypt(JSON.stringify(msg), key);
|
||
network.sendto(sender, msgStr);
|
||
};
|
||
var existing = getFriend(proxy, msgData.curvePublic);
|
||
if (existing) {
|
||
todo(true);
|
||
return;
|
||
}
|
||
var confirmMsg = common.Messages._getKey('contacts_request', [
|
||
common.fixHTML(msgData.displayName)
|
||
]);
|
||
common.confirm(confirmMsg, todo, null, true);
|
||
return;
|
||
}
|
||
if (msg[0] === "FRIEND_REQ_OK") {
|
||
var idx = pendingRequests.indexOf(sender);
|
||
if (idx !== -1) { pendingRequests.splice(idx, 1); }
|
||
|
||
// FIXME clarify this function's name
|
||
addToFriendList(common, msgData, function (err) {
|
||
if (err) {
|
||
return void common.log(common.Messages.contacts_addError);
|
||
}
|
||
common.log(common.Messages.contacts_added);
|
||
var msg = ["FRIEND_REQ_ACK", chan];
|
||
var msgStr = Crypto.encrypt(JSON.stringify(msg), key);
|
||
network.sendto(sender, msgStr);
|
||
});
|
||
return;
|
||
}
|
||
if (msg[0] === "FRIEND_REQ_NOK") {
|
||
var i = pendingRequests.indexOf(sender);
|
||
if (i !== -1) { pendingRequests.splice(i, 1); }
|
||
common.log(common.Messages.contacts_rejected);
|
||
common.changeDisplayName(proxy[common.displayNameKey]);
|
||
return;
|
||
}
|
||
if (msg[0] === "FRIEND_REQ_ACK") {
|
||
var data = pending[sender];
|
||
if (!data) { return; }
|
||
addToFriendList(common, data, function (err) {
|
||
if (err) {
|
||
return void common.log(common.Messages.contacts_addError);
|
||
}
|
||
common.log(common.Messages.contacts_added);
|
||
});
|
||
return;
|
||
}
|
||
// TODO: timeout ACK: warn the user
|
||
} catch (e) {
|
||
console.error("Cannot parse direct message", msg || message, "from", sender, e);
|
||
}
|
||
});
|
||
};
|
||
|
||
Msg.getPending = function () {
|
||
return pendingRequests;
|
||
};
|
||
|
||
Msg.inviteFromUserlist = function (common, netfluxId) {
|
||
var network = common.getNetwork();
|
||
var parsed = common.parsePadUrl(window.location.href);
|
||
if (!parsed.hashData) { return; }
|
||
// Message
|
||
var chan = parsed.hashData.channel;
|
||
var myData = createData(common);
|
||
var msg = ["FRIEND_REQ", chan, myData];
|
||
// Encryption
|
||
var keyStr = parsed.hashData.key;
|
||
var cryptor = Crypto.createEditCryptor(keyStr);
|
||
var key = cryptor.cryptKey;
|
||
var msgStr = Crypto.encrypt(JSON.stringify(msg), key);
|
||
// Send encrypted message
|
||
if (pendingRequests.indexOf(netfluxId) === -1) {
|
||
pendingRequests.push(netfluxId);
|
||
var proxy = common.getProxy();
|
||
// this redraws the userlist after a change has occurred
|
||
// TODO rename this function to reflect its purpose
|
||
common.changeDisplayName(proxy[common.displayNameKey]);
|
||
}
|
||
network.sendto(netfluxId, msgStr);
|
||
};
|
||
|
||
return Msg;
|
||
});
|