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// Load #1, load as little as possible because we are in a race to get the loading screen up.
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define([
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'/bower_components/nthen/index.js',
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'/api/config',
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'/common/dom-ready.js',
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'/common/sframe-common-outer.js',
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'/bower_components/tweetnacl/nacl-fast.min.js',
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], function (nThen, ApiConfig, DomReady, SFCommonO) {
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var Nacl = window.nacl;
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var href, hash;
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// Loaded in load #2
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nThen(function (waitFor) {
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DomReady.onReady(waitFor());
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}).nThen(function (waitFor) {
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var obj = SFCommonO.initIframe(waitFor, true);
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href = obj.href;
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hash = obj.hash;
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}).nThen(function (/*waitFor*/) {
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var privateKey, publicKey;
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var channels = {};
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var getPropChannels = function () {
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return channels;
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};
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var addData = function (meta, CryptPad, user, Utils) {
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var keys = Utils.secret && Utils.secret.keys;
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var parsed = Utils.Hash.parseTypeHash('pad', hash.slice(1));
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if (parsed && parsed.auditorKey) {
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meta.form_auditorKey = parsed.auditorKey;
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meta.form_auditorHash = hash;
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}
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var formData = Utils.Hash.getFormData(Utils.secret);
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if (!formData) { return; }
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var validateKey = keys.secondaryValidateKey;
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meta.form_answerValidateKey = validateKey;
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publicKey = meta.form_public = formData.form_public;
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privateKey = meta.form_private = formData.form_private;
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meta.form_auditorHash = formData.form_auditorHash;
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};
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var addRpc = function (sframeChan, Cryptpad, Utils) {
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sframeChan.on('EV_FORM_PIN', function (data) {
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channels.answersChannel = data.channel;
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Cryptpad.getPadAttribute('answersChannel', function (err, res) {
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// If already stored, don't pin it again
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if (res && res === data.channel) { return; }
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Cryptpad.pinPads([data.channel], function () {
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Cryptpad.setPadAttribute('answersChannel', data.channel, function () {});
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});
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});
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});
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var getAnonymousKeys = function (formSeed, channel) {
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var array = Nacl.util.decodeBase64(formSeed + channel);
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var hash = Nacl.hash(array);
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var secretKey = Nacl.util.encodeBase64(hash.subarray(32));
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var publicKey = Utils.Hash.getCurvePublicFromPrivate(secretKey);
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return {
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curvePrivate: secretKey,
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curvePublic: publicKey,
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};
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};
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var u8_slice = function (A, start, end) {
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return new Uint8Array(Array.prototype.slice.call(A, start, end));
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};
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var u8_concat = function (A) {
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var length = 0;
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A.forEach(function (a) { length += a.length; });
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var total = new Uint8Array(length);
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var offset = 0;
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A.forEach(function (a) {
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total.set(a, offset);
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offset += a.length;
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});
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return total;
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};
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var anonProof = function (channel, theirPub, anonKeys) {
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var u8_plain = Nacl.util.decodeUTF8(channel);
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var u8_nonce = Nacl.randomBytes(Nacl.box.nonceLength);
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var u8_cipher = Nacl.box(
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u8_plain,
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u8_nonce,
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Nacl.util.decodeBase64(theirPub),
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Nacl.util.decodeBase64(anonKeys.curvePrivate)
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);
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var u8_bundle = u8_concat([
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u8_nonce, // 24 uint8s
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u8_cipher, // arbitrary length
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]);
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return {
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key: anonKeys.curvePublic,
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proof: Nacl.util.encodeBase64(u8_bundle)
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};
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};
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var checkAnonProof = function (proofObj, channel, curvePrivate) {
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var pub = proofObj.key;
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var proofTxt = proofObj.proof;
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try {
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var u8_bundle = Nacl.util.decodeBase64(proofTxt);
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var u8_nonce = u8_slice(u8_bundle, 0, Nacl.box.nonceLength);
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var u8_cipher = u8_slice(u8_bundle, Nacl.box.nonceLength);
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var u8_plain = Nacl.box.open(
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u8_cipher,
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u8_nonce,
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Nacl.util.decodeBase64(pub),
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Nacl.util.decodeBase64(curvePrivate)
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);
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return channel === Nacl.util.encodeUTF8(u8_plain);
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} catch (e) {
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console.error(e);
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return false;
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}
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};
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sframeChan.on('Q_FORM_FETCH_ANSWERS', function (data, _cb) {
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var cb = Utils.Util.once(_cb);
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var myKeys = {};
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var myFormKeys;
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var accessKeys;
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var CPNetflux, Pinpad;
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var network;
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var noDriveAnswered = false;
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nThen(function (w) {
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require([
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'/bower_components/chainpad-netflux/chainpad-netflux.js',
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'/common/pinpad.js',
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], w(function (_CPNetflux, _Pinpad) {
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CPNetflux = _CPNetflux;
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Pinpad = _Pinpad;
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}));
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Cryptpad.getAccessKeys(w(function (_keys) {
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if (!Array.isArray(_keys)) { return; }
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accessKeys = _keys;
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_keys.some(function (_k) {
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if ((!Cryptpad.initialTeam && !_k.id) || Cryptpad.initialTeam === _k.id) {
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myKeys = _k;
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return true;
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}
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});
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}));
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Cryptpad.getFormKeys(w(function (keys) {
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if (!keys.curvePublic && !keys.formSeed) {
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// No drive mode
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var answered = JSON.parse(localStorage.CP_formAnswered || "[]");
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noDriveAnswered = answered.indexOf(data.channel) !== -1;
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}
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myFormKeys = keys;
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}));
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Cryptpad.makeNetwork(w(function (err, nw) {
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network = nw;
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}));
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}).nThen(function () {
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if (!network) { return void cb({error: "E_CONNECT"}); }
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if (myFormKeys.formSeed) {
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myFormKeys = getAnonymousKeys(myFormKeys.formSeed, data.channel);
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}
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var keys = Utils.secret && Utils.secret.keys;
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var curvePrivate = privateKey || data.privateKey;
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if (!curvePrivate) { return void cb({error: 'EFORBIDDEN'}); }
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var crypto = Utils.Crypto.Mailbox.createEncryptor({
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curvePrivate: curvePrivate,
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curvePublic: publicKey || data.publicKey,
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validateKey: data.validateKey
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});
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var config = {
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network: network,
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channel: data.channel,
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noChainPad: true,
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validateKey: keys.secondaryValidateKey,
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owners: [myKeys.edPublic],
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crypto: crypto,
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Cache: Utils.Cache
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};
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var results = {};
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config.onError = function (info) {
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cb({ error: info.type });
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};
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config.onRejected = function (data, cb) {
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if (!Array.isArray(data) || !data.length || data[0].length !== 16) {
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return void cb(true);
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}
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if (!Array.isArray(accessKeys)) { return void cb(true); }
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network.historyKeeper = data[0];
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nThen(function (waitFor) {
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accessKeys.forEach(function (obj) {
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Pinpad.create(network, obj, waitFor(function (e) {
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console.log('done', obj);
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if (e) { console.error(e); }
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}));
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});
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}).nThen(function () {
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cb();
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});
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};
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config.onReady = function () {
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var myKey;
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// If we have submitted an anonymous answer, retrieve it
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if (myFormKeys.curvePublic && results[myFormKeys.curvePublic]) {
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myKey = myFormKeys.curvePublic;
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}
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cb({
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noDriveAnswered: noDriveAnswered,
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myKey: myKey,
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results: results
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});
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network.disconnect();
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};
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config.onMessage = function (msg, peer, vKey, isCp, hash, senderCurve, cfg) {
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var parsed = Utils.Util.tryParse(msg);
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if (!parsed) { return; }
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if (parsed._proof) {
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var check = checkAnonProof(parsed._proof, data.channel, curvePrivate);
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if (check) {
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delete results[parsed._proof.key];
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}
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}
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results[senderCurve] = {
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msg: parsed,
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hash: hash,
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time: cfg && cfg.time
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};
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};
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CPNetflux.start(config);
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});
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});
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sframeChan.on("Q_FETCH_MY_ANSWERS", function (data, cb) {
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var answer;
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var myKeys;
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nThen(function (w) {
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Cryptpad.getFormKeys(w(function (keys) {
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myKeys = keys;
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}));
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Cryptpad.getFormAnswer({channel: data.channel}, w(function (obj) {
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if (!obj || obj.error) {
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if (obj && obj.error === "ENODRIVE") {
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var answered = JSON.parse(localStorage.CP_formAnswered || "[]");
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if (answered.indexOf(data.channel) !== -1) {
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cb({error:'EANSWERED'});
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} else {
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cb();
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}
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return void w.abort();
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}
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w.abort();
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return void cb(obj);
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}
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answer = obj;
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}));
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}).nThen(function () {
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if (answer.anonymous) {
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if (!myKeys.formSeed) { return void cb({ error: "ANONYMOUS_ERROR" }); }
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myKeys = getAnonymousKeys(myKeys.formSeed, data.channel);
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}
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Cryptpad.getHistoryRange({
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channel: data.channel,
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lastKnownHash: answer.hash,
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toHash: answer.hash,
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}, function (obj) {
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if (obj && obj.error) { return void cb(obj); }
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var messages = obj.messages;
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var res = Utils.Crypto.Mailbox.openOwnSecretLetter(messages[0].msg, {
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validateKey: data.validateKey,
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ephemeral_private: Nacl.util.decodeBase64(answer.curvePrivate),
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my_private: Nacl.util.decodeBase64(myKeys.curvePrivate),
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their_public: Nacl.util.decodeBase64(data.publicKey)
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});
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res.content._isAnon = answer.anonymous;
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cb(JSON.parse(res.content));
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});
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});
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});
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var noDriveSeed = Utils.Hash.createChannelId();
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sframeChan.on("Q_FORM_SUBMIT", function (data, cb) {
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var box = data.mailbox;
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var myKeys;
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nThen(function (w) {
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Cryptpad.getFormKeys(w(function (keys) {
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// If formSeed doesn't exists, it means we're probably in noDrive mode.
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// We can create a seed in localStorage.
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if (!keys.formSeed) {
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// No drive mode
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var answered = JSON.parse(localStorage.CP_formAnswered || "[]");
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if(answered.indexOf(data.channel) !== -1) {
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// Already answered: abort
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return void cb({ error: "EANSWERED" });
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}
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keys = { formSeed: noDriveSeed };
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}
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myKeys = keys;
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}));
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}).nThen(function () {
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var myAnonymousKeys;
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if (data.anonymous) {
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if (!myKeys.formSeed) { return void cb({ error: "ANONYMOUS_ERROR" }); }
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myKeys = getAnonymousKeys(myKeys.formSeed, box.channel);
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} else {
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myAnonymousKeys = getAnonymousKeys(myKeys.formSeed, box.channel);
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}
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var keys = Utils.secret && Utils.secret.keys;
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myKeys.signingKey = keys.secondarySignKey;
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var ephemeral_keypair = Nacl.box.keyPair();
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var ephemeral_private = Nacl.util.encodeBase64(ephemeral_keypair.secretKey);
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myKeys.ephemeral_keypair = ephemeral_keypair;
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if (myAnonymousKeys) {
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var proof = anonProof(box.channel, box.publicKey, myAnonymousKeys);
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data.results._proof = proof;
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}
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var crypto = Utils.Crypto.Mailbox.createEncryptor(myKeys);
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var text = JSON.stringify(data.results);
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var ciphertext = crypto.encrypt(text, box.publicKey);
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var hash = ciphertext.slice(0,64);
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Cryptpad.anonRpcMsg("WRITE_PRIVATE_MESSAGE", [
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box.channel,
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ciphertext
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], function (err, response) {
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Cryptpad.storeFormAnswer({
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channel: box.channel,
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hash: hash,
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curvePrivate: ephemeral_private,
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anonymous: Boolean(data.anonymous)
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});
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cb({error: err, response: response, hash: hash});
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});
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});
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});
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};
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SFCommonO.start({
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addData: addData,
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addRpc: addRpc,
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//cache: true,
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noDrive: true,
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hash: hash,
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href: href,
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useCreationScreen: true,
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messaging: true,
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getPropChannels: getPropChannels
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});
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});
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});
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