849 lines
31 KiB
JavaScript
849 lines
31 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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], function ($, Crypto, Curve, Hash, Realtime) {
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'use strict';
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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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var clone = function (o) {
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return JSON.parse(JSON.stringify(o));
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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 pending = {};
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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 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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// Invitation
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// FIXME there are too many functions with this name
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var addToFriendList = Msg.addToFriendList = function (common, data, cb) {
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var proxy = common.getProxy();
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var friends = getFriendList(proxy);
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var pubKey = data.curvePublic;
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if (pubKey === proxy.curvePublic) { return void cb("E_MYKEY"); }
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friends[pubKey] = data;
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Realtime.whenRealtimeSyncs(common, common.getRealtime(), function () {
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cb();
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common.pinPads([data.channel], function (e) {
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if (e) { console.error(e); }
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});
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});
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common.changeDisplayName(proxy[common.displayNameKey]);
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};
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var pendingRequests = [];
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/* Used to accept friend requests within apps other than /contacts/ */
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// TODO rename as _openGroupChannel_
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Msg.addDirectMessageHandler = function (common) {
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var network = common.getNetwork();
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var proxy = common.getProxy();
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if (!network) { return void console.error('Network not ready'); }
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network.on('message', function (message, sender) {
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var msg;
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if (sender === network.historyKeeper) { return; }
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try {
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var parsed = common.parsePadUrl(window.location.href);
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if (!parsed.hashData) { return; }
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var chan = parsed.hashData.channel;
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// Decrypt
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var keyStr = parsed.hashData.key;
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var cryptor = Crypto.createEditCryptor(keyStr);
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var key = cryptor.cryptKey;
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var decryptMsg;
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try {
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decryptMsg = Crypto.decrypt(message, key);
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} catch (e) {
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// If we can't decrypt, it means it is not a friend request message
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}
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if (!decryptMsg) { return; }
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// Parse
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msg = JSON.parse(decryptMsg);
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if (msg[1] !== parsed.hashData.channel) { return; }
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var msgData = msg[2];
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var msgStr;
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if (msg[0] === "FRIEND_REQ") {
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msg = ["FRIEND_REQ_NOK", chan];
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var todo = function (yes) {
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if (yes) {
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pending[sender] = msgData;
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msg = ["FRIEND_REQ_OK", chan, createData(common, msgData.channel)];
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}
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msgStr = Crypto.encrypt(JSON.stringify(msg), key);
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network.sendto(sender, msgStr);
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};
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var existing = getFriend(proxy, msgData.curvePublic);
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if (existing) {
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todo(true);
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return;
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}
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var confirmMsg = common.Messages._getKey('contacts_request', [
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common.fixHTML(msgData.displayName)
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]);
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common.confirm(confirmMsg, todo, null, true);
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return;
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}
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if (msg[0] === "FRIEND_REQ_OK") {
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var idx = pendingRequests.indexOf(sender);
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if (idx !== -1) { pendingRequests.splice(idx, 1); }
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// FIXME clarify this function's name
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addToFriendList(common, msgData, function (err) {
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if (err) {
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return void common.log(common.Messages.contacts_addError);
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}
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common.log(common.Messages.contacts_added);
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var msg = ["FRIEND_REQ_ACK", chan];
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var msgStr = Crypto.encrypt(JSON.stringify(msg), key);
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network.sendto(sender, msgStr);
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});
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return;
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}
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if (msg[0] === "FRIEND_REQ_NOK") {
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var i = pendingRequests.indexOf(sender);
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if (i !== -1) { pendingRequests.splice(i, 1); }
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common.log(common.Messages.contacts_rejected);
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common.changeDisplayName(proxy[common.displayNameKey]);
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return;
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}
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if (msg[0] === "FRIEND_REQ_ACK") {
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var data = pending[sender];
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if (!data) { return; }
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addToFriendList(common, data, function (err) {
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if (err) {
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return void common.log(common.Messages.contacts_addError);
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}
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common.log(common.Messages.contacts_added);
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});
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return;
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}
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// TODO: timeout ACK: warn the user
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} catch (e) {
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console.error("Cannot parse direct message", msg || message, "from", sender, e);
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}
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});
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};
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// TODO somehow fold this into openGroupChannel
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Msg.inviteFromUserlist = function (common, netfluxId) {
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var network = common.getNetwork();
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var parsed = common.parsePadUrl(window.location.href);
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if (!parsed.hashData) { return; }
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// Message
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var chan = parsed.hashData.channel;
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var myData = createData(common);
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var msg = ["FRIEND_REQ", chan, myData];
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// Encryption
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var keyStr = parsed.hashData.key;
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var cryptor = Crypto.createEditCryptor(keyStr);
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var key = cryptor.cryptKey;
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var msgStr = Crypto.encrypt(JSON.stringify(msg), key);
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// Send encrypted message
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if (pendingRequests.indexOf(netfluxId) === -1) {
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pendingRequests.push(netfluxId);
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var proxy = common.getProxy();
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// this redraws the userlist after a change has occurred
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common.changeDisplayName(proxy[common.displayNameKey]);
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}
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network.sendto(netfluxId, msgStr);
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};
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Msg.messenger = function (common) {
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var messenger = {
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handlers: {
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message: [],
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join: [],
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leave: [],
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update: [],
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new_friend: [],
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unfriend: [],
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},
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range_requests: {},
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};
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var eachHandler = function (type, g) {
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messenger.handlers[type].forEach(g);
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};
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messenger.on = function (type, f) {
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var stack = messenger.handlers[type];
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if (!Array.isArray(stack)) {
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return void console.error('unsupported message type');
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}
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if (typeof(f) !== 'function') {
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return void console.error('expected function');
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}
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stack.push(f);
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};
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/* messenger.openGroupChannel = function (hash, cb) {
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// TODO set up infrastructure for a many to many channel
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cb = cb;
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}; */
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var channels = messenger.channels = {};
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var joining = {};
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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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var getChannel = function (curvePublic) {
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var friend = friends[curvePublic];
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if (!friend) { return; }
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var chanId = friend.channel;
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if (!chanId) { return; }
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return channels[chanId];
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};
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var initRangeRequest = function (txid, curvePublic, sig, cb) {
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messenger.range_requests[txid] = {
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messages: [],
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cb: cb,
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curvePublic: curvePublic,
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sig: sig,
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};
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};
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var getRangeRequest = function (txid) {
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return messenger.range_requests[txid];
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};
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messenger.getMoreHistory = function (curvePublic, hash, count, cb) {
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if (typeof(cb) !== 'function') { return; }
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if (typeof(hash) !== 'string') {
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// FIXME hash is not necessarily defined.
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// What does this mean?
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console.error("not sure what to do here");
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return;
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}
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var chan = getChannel(curvePublic);
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if (typeof(chan) === 'undefined') {
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console.error("chan is undefined. we're going to have a problem here");
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return;
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}
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var txid = common.uid();
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initRangeRequest(txid, curvePublic, hash, cb);
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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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txid: txid,
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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 getCurveForChannel = function (id) {
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var channel = channels[id];
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if (!channel) { return; }
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return channel.curve;
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||
};
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||
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messenger.getChannelHead = function (curvePublic, cb) {
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var friend = friends[curvePublic];
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if (!friend) { return void cb('NO_SUCH_FRIEND'); }
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cb(void 0, friend.lastKnownHash);
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||
};
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messenger.setChannelHead = function (curvePublic, hash, cb) {
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var friend = friends[curvePublic];
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if (!friend) { return void cb('NO_SUCH_FRIEND'); }
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friend.lastKnownHash = hash;
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cb();
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||
};
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||
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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) {
|
||
channel = channels[chanId];
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||
return true;
|
||
}
|
||
});
|
||
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||
if (!isId) { return; }
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||
|
||
var decryptedMsg = channel.encryptor.decrypt(msg);
|
||
|
||
if (decryptedMsg === null) {
|
||
return void console.error("Failed to decrypt message");
|
||
}
|
||
|
||
if (!decryptedMsg) {
|
||
console.error('decrypted message was falsey but not null');
|
||
return;
|
||
}
|
||
|
||
var parsed;
|
||
try {
|
||
parsed = JSON.parse(decryptedMsg);
|
||
} catch (e) {
|
||
console.error(decryptedMsg);
|
||
return;
|
||
}
|
||
if (parsed[0] !== Types.mapId && parsed[0] !== Types.mapIdAck) { return; }
|
||
|
||
// check that the responding peer's encrypted netflux id matches
|
||
// the sender field. This is to prevent replay attacks.
|
||
if (parsed[2] !== sender || !parsed[1]) { return; }
|
||
channel.mapId[sender] = parsed[1];
|
||
eachHandler('join', function (f) {
|
||
f(parsed[1], channel.id);
|
||
});
|
||
|
||
if (parsed[0] !== Types.mapId) { return; } // Don't send your key if it's already an ACK
|
||
// Answer with your own key
|
||
var rMsg = [Types.mapIdAck, proxy.curvePublic, channel.wc.myID];
|
||
var rMsgStr = JSON.stringify(rMsg);
|
||
var cryptMsg = channel.encryptor.encrypt(rMsgStr);
|
||
network.sendto(sender, cryptMsg);
|
||
};
|
||
|
||
var orderMessages = function (curvePublic, new_messages, sig) {
|
||
var channel = getChannel(curvePublic);
|
||
var messages = channel.messages;
|
||
|
||
// TODO improve performance, guarantee correct ordering
|
||
new_messages.reverse().forEach(function (msg) {
|
||
messages.unshift(msg);
|
||
});
|
||
};
|
||
|
||
var removeFromFriendList = function (curvePublic, cb) {
|
||
if (!proxy.friends) { return; }
|
||
var friends = proxy.friends;
|
||
delete friends[curvePublic];
|
||
Realtime.whenRealtimeSyncs(common, realtime, cb);
|
||
};
|
||
|
||
var pushMsg = function (channel, cryptMsg) {
|
||
var msg = channel.encryptor.decrypt(cryptMsg);
|
||
var sig = cryptMsg.slice(0, 64);
|
||
if (msgAlreadyKnown(channel, sig)) { return; }
|
||
|
||
var parsedMsg = JSON.parse(msg);
|
||
var curvePublic;
|
||
if (parsedMsg[0] === Types.message) {
|
||
// TODO validate messages here
|
||
var res = {
|
||
type: parsedMsg[0],
|
||
sig: sig,
|
||
author: parsedMsg[1],
|
||
time: parsedMsg[2],
|
||
text: parsedMsg[3],
|
||
// this makes debugging a whole lot easier
|
||
curve: getCurveForChannel(channel.id),
|
||
};
|
||
|
||
channel.messages.push(res);
|
||
eachHandler('message', function (f) {
|
||
f(res);
|
||
});
|
||
|
||
return true;
|
||
}
|
||
if (parsedMsg[0] === Types.update) {
|
||
if (parsedMsg[1] === proxy.curvePublic) { return; }
|
||
curvePublic = parsedMsg[1];
|
||
var newdata = parsedMsg[3];
|
||
var data = getFriend(proxy, parsedMsg[1]);
|
||
var types = [];
|
||
Object.keys(newdata).forEach(function (k) {
|
||
if (data[k] !== newdata[k]) {
|
||
types.push(k);
|
||
data[k] = newdata[k];
|
||
}
|
||
});
|
||
|
||
eachHandler('update', function (f) {
|
||
f(clone(newdata), curvePublic);
|
||
});
|
||
return;
|
||
}
|
||
if (parsedMsg[0] === Types.unfriend) {
|
||
curvePublic = parsedMsg[1];
|
||
delete friends[curvePublic];
|
||
|
||
removeFromFriendList(parsedMsg[1], function () {
|
||
channel.wc.leave(Types.unfriend);
|
||
eachHandler('unfriend', function (f) {
|
||
f=f; // FIXME
|
||
// TODO
|
||
console.log('unfriend');
|
||
});
|
||
});
|
||
return;
|
||
}
|
||
};
|
||
|
||
/* Broadcast a display name, profile, or avatar change to all contacts
|
||
*/
|
||
|
||
// TODO send event...
|
||
messenger.updateMyData = function () {
|
||
var friends = getFriendList(proxy);
|
||
var mySyncData = friends.me;
|
||
var myData = createData(proxy);
|
||
if (!mySyncData || mySyncData.displayName !== myData.displayName
|
||
|| mySyncData.profile !== myData.profile
|
||
|| mySyncData.avatar !== myData.avatar) {
|
||
delete myData.channel;
|
||
Object.keys(channels).forEach(function (chan) {
|
||
var channel = channels[chan];
|
||
var msg = [Types.update, myData.curvePublic, +new Date(), myData];
|
||
var msgStr = JSON.stringify(msg);
|
||
var cryptMsg = channel.encryptor.encrypt(msgStr);
|
||
channel.wc.bcast(cryptMsg).then(function () {
|
||
// TODO send event
|
||
//channel.refresh();
|
||
}, function (err) {
|
||
console.error(err);
|
||
});
|
||
});
|
||
eachHandler('update', function (f) {
|
||
f(myData, myData.curvePublic);
|
||
});
|
||
friends.me = myData;
|
||
}
|
||
};
|
||
|
||
var onChannelReady = function (chanId) {
|
||
var cb = joining[chanId];
|
||
if (typeof(cb) !== 'function') {
|
||
return void console.log('channel ready without callback');
|
||
}
|
||
delete joining[chanId];
|
||
return cb();
|
||
};
|
||
|
||
var onDirectMessage = function (common, msg, sender) {
|
||
if (sender !== Msg.hk) { return void onIdMessage(msg, sender); }
|
||
var parsed = JSON.parse(msg);
|
||
|
||
if (/HISTORY_RANGE/.test(parsed[0])) {
|
||
//console.log(parsed);
|
||
var txid = parsed[1];
|
||
var req = getRangeRequest(txid);
|
||
var type = parsed[0];
|
||
if (!req) {
|
||
return void console.error("received response to unknown request");
|
||
}
|
||
|
||
if (type === 'HISTORY_RANGE') {
|
||
//console.log(parsed);
|
||
req.messages.push(parsed[2]); // TODO use pushMsg instead
|
||
} else if (type === 'HISTORY_RANGE_END') {
|
||
// process all the messages (decrypt)
|
||
var curvePublic = req.curvePublic;
|
||
var channel = getChannel(curvePublic);
|
||
|
||
var decrypted = req.messages.map(function (msg) {
|
||
if (msg[2] !== 'MSG') { return; }
|
||
try {
|
||
return {
|
||
d: JSON.parse(channel.encryptor.decrypt(msg[4])),
|
||
sig: msg[4].slice(0, 64),
|
||
};
|
||
} catch (e) {
|
||
console.log('failed to decrypt');
|
||
return null;
|
||
}
|
||
}).filter(function (decrypted) {
|
||
return decrypted;
|
||
}).map(function (O) {
|
||
return {
|
||
type: O.d[0],
|
||
sig: O.sig,
|
||
author: O.d[1],
|
||
time: O.d[2],
|
||
text: O.d[3],
|
||
curve: curvePublic,
|
||
};
|
||
});
|
||
|
||
orderMessages(curvePublic, decrypted, req.sig);
|
||
return void req.cb(void 0, decrypted);
|
||
} else {
|
||
console.log(parsed);
|
||
}
|
||
return;
|
||
}
|
||
|
||
if ((parsed.validateKey || parsed.owners) && parsed.channel) {
|
||
return;
|
||
}
|
||
if (parsed.state && parsed.state === 1 && parsed.channel) {
|
||
if (channels[parsed.channel]) {
|
||
// parsed.channel is Ready
|
||
// channel[parsed.channel].ready();
|
||
channels[parsed.channel].ready = true;
|
||
onChannelReady(parsed.channel);
|
||
var updateTypes = channels[parsed.channel].updateOnReady;
|
||
if (updateTypes) {
|
||
|
||
//channels[parsed.channel].updateUI(updateTypes);
|
||
}
|
||
}
|
||
return;
|
||
}
|
||
var chan = parsed[3];
|
||
if (!chan || !channels[chan]) { return; }
|
||
pushMsg(channels[chan], parsed[4]);
|
||
};
|
||
|
||
var onMessage = function (common, msg, sender, chan) {
|
||
if (!channels[chan.id]) { return; }
|
||
|
||
var isMessage = pushMsg(channels[chan.id], msg);
|
||
if (isMessage) {
|
||
if (channels[chan.id].wc.myID !== sender) {
|
||
// Don't notify for your own messages
|
||
//channels[chan.id].notify();
|
||
}
|
||
//channels[chan.id].refresh();
|
||
// TODO emit message event
|
||
}
|
||
};
|
||
|
||
// listen for messages...
|
||
network.on('message', function(msg, sender) {
|
||
onDirectMessage(common, msg, sender);
|
||
});
|
||
|
||
messenger.removeFriend = function (curvePublic, cb) {
|
||
if (typeof(cb) !== 'function') { throw new Error('NO_CALLBACK'); }
|
||
var data = getFriend(proxy, curvePublic);
|
||
|
||
if (!data) {
|
||
// friend is not valid
|
||
console.error('friend is not valid');
|
||
return;
|
||
}
|
||
|
||
var channel = channels[data.channel];
|
||
if (!channel) {
|
||
return void cb("NO_SUCH_CHANNEL");
|
||
}
|
||
|
||
if (!network.webChannels.some(function (wc) {
|
||
return wc.id === channel.id;
|
||
})) {
|
||
console.error('bad channel: ', curvePublic);
|
||
}
|
||
|
||
var msg = [Types.unfriend, proxy.curvePublic, +new Date()];
|
||
var msgStr = JSON.stringify(msg);
|
||
var cryptMsg = channel.encryptor.encrypt(msgStr);
|
||
|
||
// TODO emit remove_friend event?
|
||
try {
|
||
channel.wc.bcast(cryptMsg).then(function () {
|
||
delete friends[curvePublic];
|
||
delete channels[curvePublic];
|
||
Realtime.whenRealtimeSyncs(common, realtime, function () {
|
||
cb();
|
||
});
|
||
}, function (err) {
|
||
console.error(err);
|
||
cb(err);
|
||
});
|
||
} catch (e) {
|
||
cb(e);
|
||
}
|
||
};
|
||
|
||
var getChannelMessagesSince = function (chan, data, keys) {
|
||
console.log('Fetching [%s] messages since [%s]', data.curvePublic, data.lastKnownHash || '');
|
||
var cfg = {
|
||
validateKey: keys.validateKey,
|
||
owners: [proxy.edPublic, data.edPublic],
|
||
lastKnownHash: data.lastKnownHash
|
||
};
|
||
var msg = ['GET_HISTORY', chan.id, cfg];
|
||
network.sendto(network.historyKeeper, JSON.stringify(msg))
|
||
.then($.noop, function (err) {
|
||
throw new Error(err);
|
||
});
|
||
};
|
||
|
||
var openFriendChannel = function (data, f) {
|
||
var keys = Curve.deriveKeys(data.curvePublic, proxy.curvePrivate);
|
||
var encryptor = Curve.createEncryptor(keys);
|
||
network.join(data.channel).then(function (chan) {
|
||
var channel = channels[data.channel] = {
|
||
id: data.channel,
|
||
sending: false,
|
||
friendEd: f,
|
||
keys: keys,
|
||
curve: data.curvePublic,
|
||
encryptor: encryptor,
|
||
messages: [],
|
||
wc: chan,
|
||
userList: [],
|
||
mapId: {},
|
||
send: function (payload, cb) {
|
||
if (!network.webChannels.some(function (wc) {
|
||
if (wc.id === channel.wc.id) { return true; }
|
||
})) {
|
||
return void cb('NO_SUCH_CHANNEL');
|
||
}
|
||
|
||
var msg = [Types.message, proxy.curvePublic, +new Date(), payload];
|
||
var msgStr = JSON.stringify(msg);
|
||
var cryptMsg = channel.encryptor.encrypt(msgStr);
|
||
|
||
channel.wc.bcast(cryptMsg).then(function () {
|
||
pushMsg(channel, cryptMsg);
|
||
cb();
|
||
}, function (err) {
|
||
cb(err);
|
||
});
|
||
}
|
||
};
|
||
chan.on('message', function (msg, sender) {
|
||
onMessage(common, msg, sender, chan);
|
||
});
|
||
|
||
var onJoining = function (peer) {
|
||
if (peer === Msg.hk) { return; }
|
||
if (channel.userList.indexOf(peer) !== -1) { return; }
|
||
|
||
// FIXME this doesn't seem to be mapping correctly
|
||
channel.userList.push(peer);
|
||
var msg = [Types.mapId, proxy.curvePublic, chan.myID];
|
||
var msgStr = JSON.stringify(msg);
|
||
var cryptMsg = channel.encryptor.encrypt(msgStr);
|
||
network.sendto(peer, cryptMsg);
|
||
};
|
||
chan.members.forEach(function (peer) {
|
||
if (peer === Msg.hk) { return; }
|
||
if (channel.userList.indexOf(peer) !== -1) { return; }
|
||
channel.userList.push(peer);
|
||
});
|
||
chan.on('join', onJoining);
|
||
chan.on('leave', function (peer) {
|
||
var curvePublic = channel.mapId[peer];
|
||
console.log(curvePublic); // FIXME
|
||
|
||
var i = channel.userList.indexOf(peer);
|
||
while (i !== -1) {
|
||
channel.userList.splice(i, 1);
|
||
i = channel.userList.indexOf(peer);
|
||
}
|
||
// update status
|
||
if (!curvePublic) { return; }
|
||
eachHandler('leave', function (f) {
|
||
f(curvePublic, channel.id);
|
||
});
|
||
});
|
||
|
||
// FIXME don't subscribe to the channel implicitly
|
||
getChannelMessagesSince(chan, data, keys);
|
||
}, function (err) {
|
||
console.error(err);
|
||
});
|
||
};
|
||
|
||
// FIXME don't do this implicitly.
|
||
// get messages when a channel is opened, and if it reconnects
|
||
/*
|
||
messenger.getLatestMessages = function () {
|
||
Object.keys(channels).forEach(function (id) {
|
||
if (id === 'me') { return; }
|
||
var friend = channels[id];
|
||
//friend.getMessagesSinceDisconnect();
|
||
//friend.refresh();
|
||
});
|
||
};*/
|
||
|
||
// FIXME this shouldn't be necessary
|
||
/*
|
||
messenger.cleanFriendChannels = function () {
|
||
Object.keys(channels).forEach(function (id) {
|
||
delete channels[id];
|
||
});
|
||
};*/
|
||
|
||
messenger.getFriendList = function (cb) {
|
||
var friends = proxy.friends;
|
||
if (!friends) { return void cb(void 0, []); }
|
||
|
||
cb(void 0, Object.keys(proxy.friends).filter(function (k) {
|
||
return k !== 'me';
|
||
}));
|
||
};
|
||
|
||
/*
|
||
messenger.openFriendChannels = function () {
|
||
eachFriend(friends, openFriendChannel);
|
||
};*/
|
||
|
||
messenger.openFriendChannel = function (curvePublic, cb) {
|
||
if (typeof(curvePublic) !== 'string') { return void cb('INVALID_ID'); }
|
||
if (typeof(cb) !== 'function') { throw new Error('expected callback'); }
|
||
|
||
var friend = clone(friends[curvePublic]);
|
||
if (typeof(friend) !== 'object') {
|
||
return void cb('NO_FRIEND_DATA');
|
||
}
|
||
var channel = friend.channel;
|
||
if (!channel) { return void cb('E_NO_CHANNEL'); }
|
||
joining[channel] = cb;
|
||
openFriendChannel(friend, curvePublic);
|
||
};
|
||
|
||
messenger.sendMessage = function (curvePublic, payload, cb) {
|
||
var channel = getChannel(curvePublic);
|
||
if (!channel) { return void cb('NO_CHANNEL'); }
|
||
if (!network.webChannels.some(function (wc) {
|
||
if (wc.id === channel.wc.id) { return true; }
|
||
})) {
|
||
return void cb('NO_SUCH_CHANNEL');
|
||
}
|
||
|
||
var msg = [Types.message, proxy.curvePublic, +new Date(), payload];
|
||
var msgStr = JSON.stringify(msg);
|
||
var cryptMsg = channel.encryptor.encrypt(msgStr);
|
||
|
||
channel.wc.bcast(cryptMsg).then(function () {
|
||
pushMsg(channel, cryptMsg);
|
||
cb();
|
||
}, function (err) {
|
||
cb(err);
|
||
});
|
||
};
|
||
|
||
messenger.getStatus = function (curvePublic, cb) {
|
||
var channel = getChannel(curvePublic);
|
||
if (!channel) { return void cb('NO_SUCH_CHANNEL'); }
|
||
var online = channel.userList.some(function (nId) {
|
||
return channel.mapId[nId] === curvePublic;
|
||
});
|
||
cb(void 0, online);
|
||
};
|
||
|
||
// TODO emit friend-list-changed event
|
||
messenger.checkNewFriends = function () {
|
||
eachFriend(friends, function (friend, id) {
|
||
if (!channels[id]) {
|
||
openFriendChannel(friend, id);
|
||
}
|
||
});
|
||
};
|
||
|
||
messenger.getFriendInfo = function (curvePublic, cb) {
|
||
var friend = friends[curvePublic];
|
||
if (!friend) { return void cb('NO_SUCH_FRIEND'); }
|
||
// this clone will be redundant when ui uses postmessage
|
||
cb(void 0, clone(friend));
|
||
};
|
||
|
||
messenger.getMyInfo = function (cb) {
|
||
cb(void 0, {
|
||
curvePublic: proxy.curvePublic,
|
||
displayName: common.getDisplayName(),
|
||
});
|
||
};
|
||
|
||
// TODO listen for changes to your friend list
|
||
// emit 'update' events for clients
|
||
|
||
//var update = function (curvePublic
|
||
proxy.on('change', ['friends'], function (o, n, p) {
|
||
var curvePublic;
|
||
if (o === undefined) {
|
||
// new friend added
|
||
curvePublic = p.slice(-1)[0];
|
||
eachHandler('new_friend', function (f) {
|
||
f(clone(n), curvePublic);
|
||
});
|
||
return;
|
||
}
|
||
|
||
console.error(o, n, p);
|
||
}).on('remove', ['friends'], function (o, p) {
|
||
eachHandler('unfriend', function (f) {
|
||
f(p[1]); // TODO
|
||
});
|
||
});
|
||
|
||
Object.freeze(messenger);
|
||
|
||
return messenger;
|
||
};
|
||
|
||
return Msg;
|
||
});
|