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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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], function ($, Crypto, Curve) {
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var Msg = {};
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var Types = {
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message: 'MSG'
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};
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// TODO: pin the chat channel!
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// TODO: new Types
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// - send a rename message to the chat
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// - petnames
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// - close a chat / remove a friend
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// TODO
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// - mute a channel (hide notifications or don't open it?)
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//
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var pending = {};
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var createData = Msg.createData = function (common, hash) {
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var proxy = common.getProxy();
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return {
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channel: hash || common.createChannelId(),
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displayName: proxy[common.displayNameKey],
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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.avatar
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};
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};
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var getFriend = function (common, pubkey) {
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var proxy = common.getProxy();
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if (pubkey === proxy.edPublic) {
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var data = createData(common);
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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 (common) {
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var proxy = common.getProxy();
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return proxy.friends || {};
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};
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Msg.getFriendChannelsList = function (common) {
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var friends = getFriendList(common);
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var list = [];
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Object.keys(friends).forEach(function (key) {
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list.push(friends[key].channel);
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});
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return list;
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};
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// Messaging tools
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var avatars = {};
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Msg.getFriendListUI = function (common, open) {
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var proxy = common.getProxy();
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var $block = $('<div>');
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var friends = proxy.friends || {};
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Object.keys(friends).forEach(function (f) {
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var data = friends[f];
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var $friend = $('<div>', {'class': 'friend avatar'}).appendTo($block);
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$friend.data('key', f);
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var $rightCol = $('<span>', {'class': 'right-col'});
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$('<span>', {'class': 'name'}).text(data.displayName).appendTo($rightCol);
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$friend.dblclick(function () {
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window.open('/profile/#' + data.profile);
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});
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$friend.click(function () {
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open(data.edPublic);
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});
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if (data.avatar && avatars[data.avatar]) {
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$friend.append(avatars[data.avatar]);
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$friend.append($rightCol);
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} else {
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common.displayAvatar($friend, data.avatar, data.displayName, function ($img) {
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if (data.avatar && $img) {
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avatars[data.avatar] = $img[0].outerHTML;
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}
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$friend.append($rightCol);
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});
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}
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});
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return $block;
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};
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Msg.createOwnedChannel = function (common, channelId, validateKey, owners, cb) {
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var network = common.getNetwork();
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network.join(channelId).then(function (wc) {
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var cfg = {
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validateKey: validateKey,
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owners: owners
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};
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var msg = ['GET_HISTORY', wc.id, cfg];
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network.sendto(network.historyKeeper, JSON.stringify(msg)).then(cb, function (err) {
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throw new Error(err);
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});
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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 channels = Msg.channels = window.channels = {};
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var pushMsg = function (channel, cryptMsg) {
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var msg = channel.encryptor.decrypt(cryptMsg);
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var parsedMsg = JSON.parse(msg);
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if (parsedMsg[0] !== Types.message) { return; }
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parsedMsg.shift();
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channel.messages.push([cryptMsg.slice(0,64), parsedMsg]);
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};
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var onDirectMessage = function (msg, sender) {
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if (sender !== Msg.hk) { return; }
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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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}
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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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};
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var onMessage = function (msg, sender, chan) {
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if (!channels[chan.id]) { return; }
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pushMsg(channels[chan.id], msg);
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channels[chan.id].notify();
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channels[chan.id].refresh();
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};
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var createChatBox = function (common, $container, edPublic) {
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var data = getFriend(common, edPublic);
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var proxy = common.getProxy();
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var $header = $('<div>', {'class': 'header avatar'}).appendTo($container);
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$('<div>', {'class': 'messages'}).appendTo($container);
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var $inputBlock = $('<div>', {'class': 'input'}).appendTo($container);
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// Input
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var channel = channels[data.channel];
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var $input = $('<input>', {type: 'text'}).appendTo($inputBlock);
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var send = function () {
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if (!$input.val()) { return; }
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var msg = [Types.message, proxy.edPublic, +new Date(), $input.val()];
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var msgStr = JSON.stringify(msg);
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var cryptMsg = channel.encryptor.encrypt(msgStr);
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channel.wc.bcast(cryptMsg).then(function () {
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$input.val('');
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pushMsg(channel, cryptMsg);
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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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$('<button>').text('TODO: Send').appendTo($inputBlock).click(send); // XXX
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$input.on('keypress', function (e) {
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if (e.which === 13) { send(); }
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});
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// Header
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var $rightCol = $('<span>', {'class': 'right-col'});
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$('<span>', {'class': 'name'}).text(data.displayName).appendTo($rightCol);
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if (data.avatar && avatars[data.avatar]) {
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$header.append(avatars[data.avatar]);
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$header.append($rightCol);
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} else {
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common.displayAvatar($header, data.avatar, data.displayName, function ($img) {
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if (data.avatar && $img) {
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avatars[data.avatar] = $img[0].outerHTML;
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}
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$header.append($rightCol);
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});
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}
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};
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Msg.init = function (common, $listContainer, $msgContainer) {
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var network = common.getNetwork();
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var proxy = common.getProxy();
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Msg.hk = network.historyKeeper;
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var friends = getFriendList(common);
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network.on('message', onDirectMessage);
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// Refresh the active channel
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var refresh = function (edPublic) {
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if (Msg.active !== edPublic) { return; }
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var data = friends[edPublic];
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var channel = channels[data.channel];
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if (!channel) { return; }
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var $chat = $msgContainer.find('.chat').filter(function (idx, el) {
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return $(el).data('key') === edPublic;
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});
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if (!$chat.length) { 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 $msg, msg, date, name;
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var last = channel.lastDisplayed || -1;
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for (var i = last + 1; i<messages.length; i++) {
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msg = messages[i][1]; // 0 is the hash, 1 the array
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$msg = $('<div>', {'class': 'message'}).appendTo($messages);
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// date
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date = msg[1] ? new Date(msg[1]).toLocaleString() : '?';
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//$('<div>', {'class':'date'}).text(date).appendTo($msg);
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$msg.attr('title', date);
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// name
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if (msg[0] !== channel.lastSender) {
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name = getFriend(common, msg[0]).displayName;
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$('<div>', {'class':'sender'}).text(name).appendTo($msg);
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}
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channel.lastSender = msg[0];
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// content
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$('<div>', {'class':'content'}).text(msg[2]).appendTo($msg);
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}
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$messages.scrollTop($messages[0].scrollHeight);
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channel.lastDisplayed = i-1;
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channel.unnotify();
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if (messages.length > 10) {
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var lastKnownMsg = messages[messages.length - 11];
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data.lastKnownHash = lastKnownMsg[0];
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}
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};
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// Display a new channel
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var display = function (edPublic) {
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var isNew = false;
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var $chat = $msgContainer.find('.chat').filter(function (idx, el) {
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return $(el).data('key') === edPublic;
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});
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if (!$chat.length) {
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$chat = $('<div>', {'class':'chat'}).data('key', edPublic).appendTo($msgContainer);
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createChatBox(common, $chat, edPublic);
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isNew = true;
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}
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// Show the correct div
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$msgContainer.find('.chat').hide();
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$chat.show();
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Msg.active = edPublic;
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refresh(edPublic);
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};
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// Display friend list
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common.getFriendListUI(common, display).appendTo($listContainer);
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// Notify on new messages
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var notify = function (edPublic) {
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if (Msg.active === edPublic) { return; }
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var $friend = $listContainer.find('.friend').filter(function (idx, el) {
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return $(el).data('key') === edPublic;
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});
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$friend.addClass('notify');
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};
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var unnotify = function (edPublic) {
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var $friend = $listContainer.find('.friend').filter(function (idx, el) {
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return $(el).data('key') === edPublic;
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});
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$friend.removeClass('notify');
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};
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// Open the channels
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Object.keys(friends).forEach(function (f) {
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var data = friends[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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channels[data.channel] = {
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keys: keys,
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encryptor: encryptor,
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messages: [],
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refresh: function () { refresh(data.edPublic); },
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notify: function () { notify(data.edPublic); },
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unnotify: function () { unnotify(data.edPublic); }
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};
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network.join(data.channel).then(function (chan) {
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channels[data.channel].wc = chan;
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chan.on('message', function (msg, sender) {
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onMessage(msg, sender, chan);
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});
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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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}, 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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// Invitation
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// Remove should be called from the friend app at the moment
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// The other user will know it from the private channel ("REMOVE_FRIEND" message?)
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Msg.removeFromFriendList = function (common, edPublic, cb) {
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var proxy = common.getProxy();
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if (!proxy.friends) {
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return;
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}
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var friends = proxy.friends;
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delete friends[edPublic];
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common.whenRealtimeSyncs(common.getRealtime(), cb);
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};
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var addToFriendList = Msg.addToFriendList = function (common, data, cb) {
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var proxy = common.getProxy();
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if (!proxy.friends) {
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proxy.friends = {};
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}
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var friends = proxy.friends;
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var pubKey = data.edPublic;
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if (pubKey === proxy.edPublic) { return void cb("E_MYKEY"); }
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if (friends[pubKey]) { return void cb("E_EXISTS"); }
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friends[pubKey] = data;
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common.whenRealtimeSyncs(common.getRealtime(), function () {
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common.pinPads([data.channel], cb);
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});
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common.changeDisplayName(proxy[common.displayNameKey]);
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};
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Msg.addDirectMessageHandler = function (common) {
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var network = common.getNetwork();
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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 = Crypto.decrypt(message, key);
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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 existing = getFriend(common, msgData.edPublic);
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if (existing) {
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msg = ["FRIEND_REQ_OK", chan, createData(common, existing.channel)];
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msgStr = Crypto.encrypt(JSON.stringify(msg), key);
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network.sendto(sender, msgStr);
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return;
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}
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common.confirm("Accept friend?", function (yes) { // XXX
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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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return;
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}
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if (msg[0] === "FRIEND_REQ_OK") {
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// XXX
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addToFriendList(common, msgData, function (err) {
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if (err) {
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return void common.log('Error while adding that friend to the list');
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}
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common.log('Friend invite accepted.');
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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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// XXX
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common.log('Friend invite rejected');
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return;
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}
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if (msg[0] === "FRIEND_REQ_ACK") {
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// XXX
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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('Error while adding that friend to the list');
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}
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common.log('Friend added to the list.');
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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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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];
|
|
|
// 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
|
|
|
network.sendto(netfluxId, msgStr);
|
|
|
};
|
|
|
|
|
|
return Msg;
|
|
|
});
|