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use nthen to sequence async events

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This commit is contained in:
ansuz 2018-06-21 10:26:23 +02:00
parent 9a7abe0b1e
commit 508521664f
1 changed files with 29 additions and 20 deletions
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49
customize.dist/login.js
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@ -12,11 +12,12 @@ define([
'/common/common-feedback.js',
'/common/outer/local-store.js',
'/customize/messages.js',
'/bower_components/nthen/index.js',
'/bower_components/tweetnacl/nacl-fast.min.js',
'/bower_components/scrypt-async/scrypt-async.min.js', // better load speed
], function ($, Listmap, Crypto, Util, NetConfig, Cred, ChainPad, Realtime, Constants, UI,
Feedback, LocalStore, Messages) {
Feedback, LocalStore, Messages, nThen) {
var Exports = {
Cred: Cred,
};
@ -105,18 +106,24 @@ define([
return void cb('PASS_TOO_SHORT');
}
Cred.deriveFromPassphrase(uname, passwd, 192, function (bytes) {
// results...
var res = {
register: isRegister,
};
// results...
var res = {
register: isRegister,
};
// run scrypt to derive the user's keys
var opt = res.opt = allocateBytes(bytes);
var RT;
nThen(function (waitFor) {
Cred.deriveFromPassphrase(uname, passwd, 192, waitFor(function (bytes) {
// run scrypt to derive the user's keys
res.opt = allocateBytes(bytes);
}));
}).nThen(function (waitFor) {
var opt = res.opt;
// use the derived key to generate an object
loadUserObject(opt, function (err, rt) {
loadUserObject(opt, waitFor(function (err, rt) {
if (err) { return void cb(err); }
RT = rt;
res.proxy = rt.proxy;
res.realtime = rt.realtime;
@ -136,12 +143,14 @@ define([
// they tried to just log in but there's no such user
if (!isRegister && isProxyEmpty(rt.proxy)) {
rt.network.disconnect(); // clean up after yourself
waitFor.abort();
return void cb('NO_SUCH_USER', res);
}
// they tried to register, but those exact credentials exist
if (isRegister && !isProxyEmpty(rt.proxy)) {
rt.network.disconnect();
waitFor.abort();
return void cb('ALREADY_REGISTERED', res);
}
@ -163,17 +172,17 @@ define([
if (shouldImport) {
sessionStorage.migrateAnonDrive = 1;
}
// We have to call whenRealtimeSyncs asynchronously here because in the current
// version of listmap, onLocal calls `chainpad.contentUpdate(newValue)`
// asynchronously.
// The following setTimeout is here to make sure whenRealtimeSyncs is called after
// `contentUpdate` so that we have an update userDoc in chainpad.
setTimeout(function () {
Realtime.whenRealtimeSyncs(rt.realtime, function () {
LocalStore.login(res.userHash, res.userName, function () {
setTimeout(function () { cb(void 0, res); });
});
}));
}).nThen(function () {
// We have to call whenRealtimeSyncs asynchronously here because in the current
// version of listmap, onLocal calls `chainpad.contentUpdate(newValue)`
// asynchronously.
// The following setTimeout is here to make sure whenRealtimeSyncs is called after
// `contentUpdate` so that we have an update userDoc in chainpad.
setTimeout(function () {
Realtime.whenRealtimeSyncs(RT.realtime, function () {
LocalStore.login(res.userHash, res.userName, function () {
setTimeout(function () { cb(void 0, res); });
});
});
});