sneedmc/launcher/minecraft/auth/Parsers.cpp
Petr Mrázek 3c46d8a412 GH-4071 Heavily refactor and rearchitect account system
This makes the account system much more modular
and makes it treat errors as something recoverable,
unless they come directly from the MSA refresh token
becoming invalid.
2021-12-04 01:18:05 +01:00

317 lines
8.7 KiB
C++

#include "Parsers.h"
#include <QJsonDocument>
#include <QJsonArray>
#include <QDebug>
namespace Parsers {
bool getDateTime(QJsonValue value, QDateTime & out) {
if(!value.isString()) {
return false;
}
out = QDateTime::fromString(value.toString(), Qt::ISODate);
return out.isValid();
}
bool getString(QJsonValue value, QString & out) {
if(!value.isString()) {
return false;
}
out = value.toString();
return true;
}
bool getNumber(QJsonValue value, double & out) {
if(!value.isDouble()) {
return false;
}
out = value.toDouble();
return true;
}
bool getNumber(QJsonValue value, int64_t & out) {
if(!value.isDouble()) {
return false;
}
out = (int64_t) value.toDouble();
return true;
}
bool getBool(QJsonValue value, bool & out) {
if(!value.isBool()) {
return false;
}
out = value.toBool();
return true;
}
/*
{
"IssueInstant":"2020-12-07T19:52:08.4463796Z",
"NotAfter":"2020-12-21T19:52:08.4463796Z",
"Token":"token",
"DisplayClaims":{
"xui":[
{
"uhs":"userhash"
}
]
}
}
*/
// TODO: handle error responses ...
/*
{
"Identity":"0",
"XErr":2148916238,
"Message":"",
"Redirect":"https://start.ui.xboxlive.com/AddChildToFamily"
}
// 2148916233 = missing XBox account
// 2148916238 = child account not linked to a family
*/
bool parseXTokenResponse(QByteArray & data, Katabasis::Token &output, QString name) {
qDebug() << "Parsing" << name <<":";
#ifndef NDEBUG
qDebug() << data;
#endif
QJsonParseError jsonError;
QJsonDocument doc = QJsonDocument::fromJson(data, &jsonError);
if(jsonError.error) {
qWarning() << "Failed to parse response from user.auth.xboxlive.com as JSON: " << jsonError.errorString();
return false;
}
auto obj = doc.object();
if(!getDateTime(obj.value("IssueInstant"), output.issueInstant)) {
qWarning() << "User IssueInstant is not a timestamp";
return false;
}
if(!getDateTime(obj.value("NotAfter"), output.notAfter)) {
qWarning() << "User NotAfter is not a timestamp";
return false;
}
if(!getString(obj.value("Token"), output.token)) {
qWarning() << "User Token is not a timestamp";
return false;
}
auto arrayVal = obj.value("DisplayClaims").toObject().value("xui");
if(!arrayVal.isArray()) {
qWarning() << "Missing xui claims array";
return false;
}
bool foundUHS = false;
for(auto item: arrayVal.toArray()) {
if(!item.isObject()) {
continue;
}
auto obj = item.toObject();
if(obj.contains("uhs")) {
foundUHS = true;
} else {
continue;
}
// consume all 'display claims' ... whatever that means
for(auto iter = obj.begin(); iter != obj.end(); iter++) {
QString claim;
if(!getString(obj.value(iter.key()), claim)) {
qWarning() << "display claim " << iter.key() << " is not a string...";
return false;
}
output.extra[iter.key()] = claim;
}
break;
}
if(!foundUHS) {
qWarning() << "Missing uhs";
return false;
}
output.validity = Katabasis::Validity::Certain;
qDebug() << name << "is valid.";
return true;
}
bool parseMinecraftProfile(QByteArray & data, MinecraftProfile &output) {
qDebug() << "Parsing Minecraft profile...";
#ifndef NDEBUG
qDebug() << data;
#endif
QJsonParseError jsonError;
QJsonDocument doc = QJsonDocument::fromJson(data, &jsonError);
if(jsonError.error) {
qWarning() << "Failed to parse response from user.auth.xboxlive.com as JSON: " << jsonError.errorString();
return false;
}
auto obj = doc.object();
if(!getString(obj.value("id"), output.id)) {
qWarning() << "Minecraft profile id is not a string";
return false;
}
if(!getString(obj.value("name"), output.name)) {
qWarning() << "Minecraft profile name is not a string";
return false;
}
auto skinsArray = obj.value("skins").toArray();
for(auto skin: skinsArray) {
auto skinObj = skin.toObject();
Skin skinOut;
if(!getString(skinObj.value("id"), skinOut.id)) {
continue;
}
QString state;
if(!getString(skinObj.value("state"), state)) {
continue;
}
if(state != "ACTIVE") {
continue;
}
if(!getString(skinObj.value("url"), skinOut.url)) {
continue;
}
if(!getString(skinObj.value("variant"), skinOut.variant)) {
continue;
}
// we deal with only the active skin
output.skin = skinOut;
break;
}
auto capesArray = obj.value("capes").toArray();
QString currentCape;
for(auto cape: capesArray) {
auto capeObj = cape.toObject();
Cape capeOut;
if(!getString(capeObj.value("id"), capeOut.id)) {
continue;
}
QString state;
if(!getString(capeObj.value("state"), state)) {
continue;
}
if(state == "ACTIVE") {
currentCape = capeOut.id;
}
if(!getString(capeObj.value("url"), capeOut.url)) {
continue;
}
if(!getString(capeObj.value("alias"), capeOut.alias)) {
continue;
}
output.capes[capeOut.id] = capeOut;
}
output.currentCape = currentCape;
output.validity = Katabasis::Validity::Certain;
return true;
}
bool parseMinecraftEntitlements(QByteArray & data, MinecraftEntitlement &output) {
qDebug() << "Parsing Minecraft entitlements...";
#ifndef NDEBUG
qDebug() << data;
#endif
QJsonParseError jsonError;
QJsonDocument doc = QJsonDocument::fromJson(data, &jsonError);
if(jsonError.error) {
qWarning() << "Failed to parse response from user.auth.xboxlive.com as JSON: " << jsonError.errorString();
return false;
}
auto obj = doc.object();
auto itemsArray = obj.value("items").toArray();
for(auto item: itemsArray) {
auto itemObj = item.toObject();
QString name;
if(!getString(itemObj.value("name"), name)) {
continue;
}
if(name == "game_minecraft") {
output.canPlayMinecraft = true;
}
if(name == "product_minecraft") {
output.ownsMinecraft = true;
}
}
output.validity = Katabasis::Validity::Certain;
return true;
}
bool parseRolloutResponse(QByteArray & data, bool& result) {
qDebug() << "Parsing Rollout response...";
#ifndef NDEBUG
qDebug() << data;
#endif
QJsonParseError jsonError;
QJsonDocument doc = QJsonDocument::fromJson(data, &jsonError);
if(jsonError.error) {
qWarning() << "Failed to parse response from https://api.minecraftservices.com/rollout/v1/msamigration as JSON: " << jsonError.errorString();
return false;
}
auto obj = doc.object();
QString feature;
if(!getString(obj.value("feature"), feature)) {
qWarning() << "Rollout feature is not a string";
return false;
}
if(feature != "msamigration") {
qWarning() << "Rollout feature is not what we expected (msamigration), but is instead \"" << feature << "\"";
return false;
}
if(!getBool(obj.value("rollout"), result)) {
qWarning() << "Rollout feature is not a string";
return false;
}
return true;
}
bool parseMojangResponse(QByteArray & data, Katabasis::Token &output) {
QJsonParseError jsonError;
qDebug() << "Parsing Mojang response...";
#ifndef NDEBUG
qDebug() << data;
#endif
QJsonDocument doc = QJsonDocument::fromJson(data, &jsonError);
if(jsonError.error) {
qWarning() << "Failed to parse response from api.minecraftservices.com/launcher/login as JSON: " << jsonError.errorString();
return false;
}
auto obj = doc.object();
double expires_in = 0;
if(!getNumber(obj.value("expires_in"), expires_in)) {
qWarning() << "expires_in is not a valid number";
return false;
}
auto currentTime = QDateTime::currentDateTimeUtc();
output.issueInstant = currentTime;
output.notAfter = currentTime.addSecs(expires_in);
QString username;
if(!getString(obj.value("username"), username)) {
qWarning() << "username is not valid";
return false;
}
// TODO: it's a JWT... validate it?
if(!getString(obj.value("access_token"), output.token)) {
qWarning() << "access_token is not valid";
return false;
}
output.validity = Katabasis::Validity::Certain;
qDebug() << "Mojang response is valid.";
return true;
}
}