582 lines
24 KiB
JavaScript
582 lines
24 KiB
JavaScript
define([
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'jquery',
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'chainpad-listmap',
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'/bower_components/chainpad-crypto/crypto.js',
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'/common/common-util.js',
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'/common/outer/network-config.js',
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'/common/common-credential.js',
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'/bower_components/chainpad/chainpad.dist.js',
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'/common/common-realtime.js',
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'/common/common-constants.js',
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'/common/common-interface.js',
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'/common/common-feedback.js',
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'/common/outer/local-store.js',
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'/customize/messages.js',
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'/bower_components/nthen/index.js',
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'/common/outer/login-block.js',
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'/common/common-hash.js',
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'/bower_components/tweetnacl/nacl-fast.min.js',
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'/bower_components/scrypt-async/scrypt-async.min.js', // better load speed
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], function ($, Listmap, Crypto, Util, NetConfig, Cred, ChainPad, Realtime, Constants, UI,
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Feedback, LocalStore, Messages, nThen, Block, Hash) {
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var Exports = {
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Cred: Cred,
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Block: Block,
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// this is depended on by non-customizable files
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// be careful when modifying login.js
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requiredBytes: 192,
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};
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var Nacl = window.nacl;
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var redirectTo = '/drive/';
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var setRedirectTo = function () {
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var parsed = Hash.parsePadUrl(window.location.href);
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if (parsed.hashData && parsed.hashData.newPadOpts) {
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var newPad = Hash.decodeDataOptions(parsed.hashData.newPadOpts);
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redirectTo = newPad.href;
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}
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};
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if (window.location.hash) {
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setRedirectTo();
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}
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var allocateBytes = Exports.allocateBytes = function (bytes) {
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var dispense = Cred.dispenser(bytes);
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var opt = {};
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// dispense 18 bytes of entropy for your encryption key
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var encryptionSeed = dispense(18);
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// 16 bytes for a deterministic channel key
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var channelSeed = dispense(16);
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// 32 bytes for a curve key
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var curveSeed = dispense(32);
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var curvePair = Nacl.box.keyPair.fromSecretKey(new Uint8Array(curveSeed));
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opt.curvePrivate = Nacl.util.encodeBase64(curvePair.secretKey);
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opt.curvePublic = Nacl.util.encodeBase64(curvePair.publicKey);
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// 32 more for a signing key
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var edSeed = opt.edSeed = dispense(32);
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// 64 more bytes to seed an additional signing key
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var blockKeys = opt.blockKeys = Block.genkeys(new Uint8Array(dispense(64)));
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opt.blockHash = Block.getBlockHash(blockKeys);
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// derive a private key from the ed seed
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var signingKeypair = Nacl.sign.keyPair.fromSeed(new Uint8Array(edSeed));
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opt.edPrivate = Nacl.util.encodeBase64(signingKeypair.secretKey);
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opt.edPublic = Nacl.util.encodeBase64(signingKeypair.publicKey);
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var keys = opt.keys = Crypto.createEditCryptor(null, encryptionSeed);
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// 24 bytes of base64
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keys.editKeyStr = keys.editKeyStr.replace(/\//g, '-');
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// 32 bytes of hex
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var channelHex = opt.channelHex = Util.uint8ArrayToHex(channelSeed);
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// should never happen
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if (channelHex.length !== 32) { throw new Error('invalid channel id'); }
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var channel64 = Util.hexToBase64(channelHex);
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// we still generate a v1 hash because this function needs to deterministically
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// derive the same values as it always has. New accounts will generate their own
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// userHash values
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opt.userHash = '/1/edit/' + [channel64, opt.keys.editKeyStr].join('/') + '/';
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return opt;
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};
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var loginOptionsFromBlock = Exports.loginOptionsFromBlock = function (blockInfo) {
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var opt = {};
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var parsed = Hash.getSecrets('pad', blockInfo.User_hash);
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opt.channelHex = parsed.channel;
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opt.keys = parsed.keys;
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opt.edPublic = blockInfo.edPublic;
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opt.User_name = blockInfo.User_name;
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return opt;
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};
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var loadUserObject = Exports.loadUserObject = function (opt, cb) {
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var config = {
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websocketURL: NetConfig.getWebsocketURL(),
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channel: opt.channelHex,
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data: {},
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validateKey: opt.keys.validateKey, // derived validation key
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crypto: Crypto.createEncryptor(opt.keys),
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logLevel: 1,
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classic: true,
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ChainPad: ChainPad,
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owners: [opt.edPublic]
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};
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var rt = opt.rt = Listmap.create(config);
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rt.proxy
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.on('ready', function () {
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setTimeout(function () { cb(void 0, rt); });
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})
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.on('disconnect', function (info) {
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cb('E_DISCONNECT', info);
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});
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};
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var isProxyEmpty = function (proxy) {
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var l = Object.keys(proxy).length;
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return l === 0 || (l === 2 && proxy._events && proxy.on);
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};
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var setMergeAnonDrive = function () {
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Exports.mergeAnonDrive = 1;
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};
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Exports.loginOrRegister = function (uname, passwd, isRegister, shouldImport, cb) {
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if (typeof(cb) !== 'function') { return; }
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// Usernames are all lowercase. No going back on this one
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uname = uname.toLowerCase();
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// validate inputs
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if (!Cred.isValidUsername(uname)) { return void cb('INVAL_USER'); }
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if (!Cred.isValidPassword(passwd)) { return void cb('INVAL_PASS'); }
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if (isRegister && !Cred.isLongEnoughPassword(passwd)) {
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return void cb('PASS_TOO_SHORT');
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}
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// results...
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var res = {
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register: isRegister,
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};
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var RT, blockKeys, blockHash, blockUrl, Pinpad, rpc, userHash;
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nThen(function (waitFor) {
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// derive a predefined number of bytes from the user's inputs,
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// and allocate them in a deterministic fashion
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Cred.deriveFromPassphrase(uname, passwd, Exports.requiredBytes, waitFor(function (bytes) {
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res.opt = allocateBytes(bytes);
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blockHash = res.opt.blockHash;
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blockKeys = res.opt.blockKeys;
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}));
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}).nThen(function (waitFor) {
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// the allocated bytes can be used either in a legacy fashion,
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// or in such a way that a previously unused byte range determines
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// the location of a layer of indirection which points users to
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// an encrypted block, from which they can recover the location of
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// the rest of their data
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// determine where a block for your set of keys would be stored
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blockUrl = Block.getBlockUrl(res.opt.blockKeys);
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// Check whether there is a block at that location
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Util.fetch(blockUrl, waitFor(function (err, block) {
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// if users try to log in or register, we must check
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// whether there is a block.
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// the block is only useful if it can be decrypted, though
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if (err) {
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console.log("no block found");
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return;
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}
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var decryptedBlock = Block.decrypt(block, blockKeys);
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if (!decryptedBlock) {
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console.error("Found a login block but failed to decrypt");
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return;
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}
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//console.error(decryptedBlock);
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res.blockInfo = decryptedBlock;
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}));
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}).nThen(function (waitFor) {
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// we assume that if there is a block, it was created in a valid manner
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// so, just proceed to the next block which handles that stuff
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if (res.blockInfo) { return; }
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var opt = res.opt;
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// load the user's object using the legacy credentials
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loadUserObject(opt, waitFor(function (err, rt) {
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if (err) {
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waitFor.abort();
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return void cb(err);
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}
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// if a proxy is marked as deprecated, it is because someone had a non-owned drive
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// but changed their password, and couldn't delete their old data.
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// if they are here, they have entered their old credentials, so we should not
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// allow them to proceed. In time, their old drive should get deleted, since
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// it will should be pinned by anyone's drive.
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if (rt.proxy[Constants.deprecatedKey]) {
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waitFor.abort();
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return void cb('NO_SUCH_USER', res);
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}
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if (isRegister && isProxyEmpty(rt.proxy)) {
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// If they are trying to register,
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// and the proxy is empty, then there is no 'legacy user' either
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// so we should just shut down this session and disconnect.
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rt.network.disconnect();
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return; // proceed to the next async block
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}
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// they tried to just log in but there's no such user
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// and since we're here at all there is no modern-block
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if (!isRegister && isProxyEmpty(rt.proxy)) {
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rt.network.disconnect(); // clean up after yourself
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waitFor.abort();
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return void cb('NO_SUCH_USER', res);
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}
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// they tried to register, but those exact credentials exist
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if (isRegister && !isProxyEmpty(rt.proxy)) {
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rt.network.disconnect();
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waitFor.abort();
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Feedback.send('LOGIN', true);
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return void cb('ALREADY_REGISTERED', res);
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}
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// if you are here, then there is no block, the user is trying
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// to log in. The proxy is **not** empty. All values assigned here
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// should have been deterministically created using their credentials
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// so setting them is just a precaution to keep things in good shape
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res.proxy = rt.proxy;
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res.realtime = rt.realtime;
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// they're registering...
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res.userHash = opt.userHash;
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res.userName = uname;
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// export their signing key
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res.edPrivate = opt.edPrivate;
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res.edPublic = opt.edPublic;
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// export their encryption key
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res.curvePrivate = opt.curvePrivate;
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res.curvePublic = opt.curvePublic;
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if (shouldImport) { setMergeAnonDrive(); }
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// don't proceed past this async block.
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waitFor.abort();
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// We have to call whenRealtimeSyncs asynchronously here because in the current
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// version of listmap, onLocal calls `chainpad.contentUpdate(newValue)`
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// asynchronously.
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// The following setTimeout is here to make sure whenRealtimeSyncs is called after
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// `contentUpdate` so that we have an update userDoc in chainpad.
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setTimeout(function () {
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Realtime.whenRealtimeSyncs(rt.realtime, function () {
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// the following stages are there to initialize a new drive
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// if you are registering
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LocalStore.login(res.userHash, res.userName, function () {
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setTimeout(function () { cb(void 0, res); });
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});
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});
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});
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}));
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}).nThen(function (waitFor) { // MODERN REGISTRATION / LOGIN
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var opt;
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if (res.blockInfo) {
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opt = loginOptionsFromBlock(res.blockInfo);
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userHash = res.blockInfo.User_hash;
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//console.error(opt, userHash);
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} else {
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console.log("allocating random bytes for a new user object");
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opt = allocateBytes(Nacl.randomBytes(Exports.requiredBytes));
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// create a random v2 hash, since we don't need backwards compatibility
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userHash = opt.userHash = Hash.createRandomHash('drive');
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var secret = Hash.getSecrets('drive', userHash);
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opt.keys = secret.keys;
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opt.channelHex = secret.channel;
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}
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// according to the location derived from the credentials which you entered
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loadUserObject(opt, waitFor(function (err, rt) {
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if (err) {
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waitFor.abort();
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return void cb('MODERN_REGISTRATION_INIT');
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}
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//console.error(JSON.stringify(rt.proxy));
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// export the realtime object you checked
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RT = rt;
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var proxy = rt.proxy;
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if (isRegister && !isProxyEmpty(proxy) && (!proxy.edPublic || !proxy.edPrivate)) {
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console.error("INVALID KEYS");
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console.log(JSON.stringify(proxy));
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return;
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}
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res.proxy = rt.proxy;
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res.realtime = rt.realtime;
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// they're registering...
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res.userHash = userHash;
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res.userName = uname;
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// somehow they have a block present, but nothing in the user object it specifies
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// this shouldn't happen, but let's send feedback if it does
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if (!isRegister && isProxyEmpty(rt.proxy)) {
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// this really shouldn't happen, but let's handle it anyway
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Feedback.send('EMPTY_LOGIN_WITH_BLOCK');
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rt.network.disconnect(); // clean up after yourself
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waitFor.abort();
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return void cb('NO_SUCH_USER', res);
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}
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// they tried to register, but those exact credentials exist
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if (isRegister && !isProxyEmpty(rt.proxy)) {
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rt.network.disconnect();
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waitFor.abort();
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res.blockHash = blockHash;
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if (shouldImport) {
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setMergeAnonDrive();
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}
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return void cb('ALREADY_REGISTERED', res);
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}
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if (!isRegister && !isProxyEmpty(rt.proxy)) {
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LocalStore.setBlockHash(blockHash);
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waitFor.abort();
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if (shouldImport) {
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setMergeAnonDrive();
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}
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var l = Util.find(rt.proxy, ['settings', 'general', 'language']);
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var LS_LANG = "CRYPTPAD_LANG";
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if (l) {
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localStorage.setItem(LS_LANG, l);
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}
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return void LocalStore.login(userHash, uname, function () {
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cb(void 0, res);
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});
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}
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if (isRegister && isProxyEmpty(rt.proxy)) {
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proxy.edPublic = opt.edPublic;
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proxy.edPrivate = opt.edPrivate;
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proxy.curvePublic = opt.curvePublic;
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proxy.curvePrivate = opt.curvePrivate;
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proxy.login_name = uname;
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proxy[Constants.displayNameKey] = uname;
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if (shouldImport) {
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setMergeAnonDrive();
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} else {
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proxy.version = 11;
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}
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Feedback.send('REGISTRATION', true);
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} else {
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Feedback.send('LOGIN', true);
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}
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setTimeout(waitFor(function () {
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Realtime.whenRealtimeSyncs(rt.realtime, waitFor());
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}));
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}));
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}).nThen(function (waitFor) {
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require(['/common/pinpad.js'], waitFor(function (_Pinpad) {
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console.log("loaded rpc module");
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Pinpad = _Pinpad;
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}));
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}).nThen(function (waitFor) {
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// send an RPC to store the block which you created.
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console.log("initializing rpc interface");
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Pinpad.create(RT.network, Block.keysToRPCFormat(res.opt.blockKeys), waitFor(function (e, _rpc) {
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if (e) {
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waitFor.abort();
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console.error(e); // INVALID_KEYS
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return void cb('RPC_CREATION_ERROR');
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}
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rpc = _rpc;
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console.log("rpc initialized");
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}));
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}).nThen(function (waitFor) {
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console.log("creating request to publish a login block");
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// Finally, create the login block for the object you just created.
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var toPublish = {};
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toPublish[Constants.userNameKey] = uname;
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toPublish[Constants.userHashKey] = userHash;
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toPublish.edPublic = RT.proxy.edPublic;
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var blockRequest = Block.serialize(JSON.stringify(toPublish), res.opt.blockKeys);
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rpc.writeLoginBlock(blockRequest, waitFor(function (e) {
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if (e) {
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console.error(e);
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waitFor.abort();
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return void cb(e);
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}
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}));
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}).nThen(function (waitFor) {
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// confirm that the block was actually written before considering registration successful
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Util.fetch(blockUrl, waitFor(function (err /*, block */) {
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if (err) {
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console.error(err);
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waitFor.abort();
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return void cb(err);
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}
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console.log("blockInfo available at:", blockHash);
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LocalStore.setBlockHash(blockHash);
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LocalStore.login(userHash, uname, function () {
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cb(void 0, res);
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});
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}));
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});
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};
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Exports.redirect = function () {
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if (redirectTo) {
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var h = redirectTo;
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var loginOpts = {};
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if (Exports.mergeAnonDrive) {
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loginOpts.mergeAnonDrive = 1;
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}
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h = Hash.getLoginURL(h, loginOpts);
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var parser = document.createElement('a');
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parser.href = h;
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if (parser.origin === window.location.origin) {
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window.location.href = h;
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return;
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}
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}
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window.location.href = '/drive/';
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};
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var hashing;
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Exports.loginOrRegisterUI = function (uname, passwd, isRegister, shouldImport, testing, test) {
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if (hashing) { return void console.log("hashing is already in progress"); }
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hashing = true;
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var proceed = function (result) {
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hashing = false;
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if (test && typeof test === "function" && test()) { return; }
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LocalStore.clearLoginToken();
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Realtime.whenRealtimeSyncs(result.realtime, function () {
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Exports.redirect();
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});
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};
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// setTimeout 100ms to remove the keyboard on mobile devices before the loading screen
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// pops up
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window.setTimeout(function () {
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UI.addLoadingScreen({
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loadingText: Messages.login_hashing,
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hideTips: true,
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});
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// We need a setTimeout(cb, 0) otherwise the loading screen is only displayed
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// after hashing the password
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window.setTimeout(function () {
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Exports.loginOrRegister(uname, passwd, isRegister, shouldImport, function (err, result) {
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var proxy;
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if (result) { proxy = result.proxy; }
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|
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if (err) {
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switch (err) {
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case 'NO_SUCH_USER':
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UI.removeLoadingScreen(function () {
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UI.alert(Messages.login_noSuchUser, function () {
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hashing = false;
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$('#password').focus();
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});
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});
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break;
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case 'INVAL_USER':
|
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UI.removeLoadingScreen(function () {
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UI.alert(Messages.login_invalUser, function () {
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hashing = false;
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$('#password').focus();
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});
|
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});
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break;
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case 'INVAL_PASS':
|
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UI.removeLoadingScreen(function () {
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UI.alert(Messages.login_invalPass, function () {
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hashing = false;
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$('#password').focus();
|
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});
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});
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break;
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case 'PASS_TOO_SHORT':
|
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UI.removeLoadingScreen(function () {
|
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var warning = Messages._getKey('register_passwordTooShort', [
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Cred.MINIMUM_PASSWORD_LENGTH
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|
]);
|
|
UI.alert(warning, function () {
|
|
hashing = false;
|
|
$('#password').focus();
|
|
});
|
|
});
|
|
break;
|
|
case 'ALREADY_REGISTERED':
|
|
UI.removeLoadingScreen(function () {
|
|
UI.confirm(Messages.register_alreadyRegistered, function (yes) {
|
|
if (!yes) {
|
|
hashing = false;
|
|
return;
|
|
}
|
|
proxy.login_name = uname;
|
|
|
|
if (!proxy[Constants.displayNameKey]) {
|
|
proxy[Constants.displayNameKey] = uname;
|
|
}
|
|
|
|
if (result.blockHash) {
|
|
LocalStore.setBlockHash(result.blockHash);
|
|
}
|
|
|
|
LocalStore.login(result.userHash, result.userName, function () {
|
|
setTimeout(function () { proceed(result); });
|
|
});
|
|
});
|
|
});
|
|
break;
|
|
case 'E_RESTRICTED':
|
|
UI.errorLoadingScreen(Messages.register_registrationIsClosed);
|
|
break;
|
|
default: // UNHANDLED ERROR
|
|
hashing = false;
|
|
UI.errorLoadingScreen(Messages.login_unhandledError);
|
|
}
|
|
return;
|
|
}
|
|
|
|
//if (testing) { return void proceed(result); }
|
|
|
|
if (!(proxy.curvePrivate && proxy.curvePublic &&
|
|
proxy.edPrivate && proxy.edPublic)) {
|
|
|
|
console.log("recovering derived public/private keypairs");
|
|
// **** reset keys ****
|
|
proxy.curvePrivate = result.curvePrivate;
|
|
proxy.curvePublic = result.curvePublic;
|
|
proxy.edPrivate = result.edPrivate;
|
|
proxy.edPublic = result.edPublic;
|
|
}
|
|
|
|
setTimeout(function () {
|
|
Realtime.whenRealtimeSyncs(result.realtime, function () {
|
|
proceed(result);
|
|
});
|
|
});
|
|
});
|
|
}, 500);
|
|
}, 200);
|
|
};
|
|
|
|
return Exports;
|
|
});
|