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/* Copyright 2013-2019 MultiMC Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "AuthenticateTask.h"
#include "../MojangAccount.h"
#include <QJsonDocument>
#include <QJsonObject>
#include <QJsonArray>
#include <QVariant>
#include <QDebug>
#include <QUuid>
AuthenticateTask::AuthenticateTask(MojangAccount * account, const QString &password,
QObject *parent)
: YggdrasilTask(account, parent), m_password(password)
{
}
QJsonObject AuthenticateTask::getRequestContent() const
{
/*
* {
* "agent": { // optional
* "name": "Minecraft", // So far this is the only encountered value
* "version": 1 // This number might be increased
* // by the vanilla client in the future
* },
* "username": "mojang account name", // Can be an email address or player name for
// unmigrated accounts
* "password": "mojang account password",
* "clientToken": "client identifier" // optional
* "requestUser": true/false // request the user structure
* }
*/
QJsonObject req;
{
QJsonObject agent;
// C++ makes string literals void* for some stupid reason, so we have to tell it
// QString... Thanks Obama.
agent.insert("name", QString("Minecraft"));
agent.insert("version", 1);
req.insert("agent", agent);
}
req.insert("username", m_account->username());
req.insert("password", m_password);
req.insert("requestUser", true);
// If we already have a client token, give it to the server.
// Otherwise, let the server give us one.
if(m_account->m_clientToken.isEmpty())
{
auto uuid = QUuid::createUuid();
auto uuidString = uuid.toString().remove('{').remove('-').remove('}');
m_account->m_clientToken = uuidString;
}
req.insert("clientToken", m_account->m_clientToken);
return req;
}
void AuthenticateTask::processResponse(QJsonObject responseData)
{
// Read the response data. We need to get the client token, access token, and the selected
// profile.
qDebug() << "Processing authentication response.";
// qDebug() << responseData;
// If we already have a client token, make sure the one the server gave us matches our
// existing one.
qDebug() << "Getting client token.";
QString clientToken = responseData.value("clientToken").toString("");
if (clientToken.isEmpty())
{
// Fail if the server gave us an empty client token
changeState(STATE_FAILED_HARD, tr("Authentication server didn't send a client token."));
return;
}
if (!m_account->m_clientToken.isEmpty() && clientToken != m_account->m_clientToken)
{
changeState(STATE_FAILED_HARD, tr("Authentication server attempted to change the client token. This isn't supported."));
return;
}
// Set the client token.
m_account->m_clientToken = clientToken;
// Now, we set the access token.
qDebug() << "Getting access token.";
QString accessToken = responseData.value("accessToken").toString("");
if (accessToken.isEmpty())
{
// Fail if the server didn't give us an access token.
changeState(STATE_FAILED_HARD, tr("Authentication server didn't send an access token."));
return;
}
// Set the access token.
m_account->m_accessToken = accessToken;
// Now we load the list of available profiles.
// Mojang hasn't yet implemented the profile system,
// but we might as well support what's there so we
// don't have trouble implementing it later.
qDebug() << "Loading profile list.";
QJsonArray availableProfiles = responseData.value("availableProfiles").toArray();
QList<AccountProfile> loadedProfiles;
for (auto iter : availableProfiles)
{
QJsonObject profile = iter.toObject();
// Profiles are easy, we just need their ID and name.
QString id = profile.value("id").toString("");
QString name = profile.value("name").toString("");
bool legacy = profile.value("legacy").toBool(false);
if (id.isEmpty() || name.isEmpty())
{
// This should never happen, but we might as well
// warn about it if it does so we can debug it easily.
// You never know when Mojang might do something truly derpy.
qWarning() << "Found entry in available profiles list with missing ID or name "
"field. Ignoring it.";
}
// Now, add a new AccountProfile entry to the list.
loadedProfiles.append({id, name, legacy});
}
// Put the list of profiles we loaded into the MojangAccount object.
m_account->m_profiles = loadedProfiles;
// Finally, we set the current profile to the correct value. This is pretty simple.
// We do need to make sure that the current profile that the server gave us
// is actually in the available profiles list.
// If it isn't, we'll just fail horribly (*shouldn't* ever happen, but you never know).
qDebug() << "Setting current profile.";
QJsonObject currentProfile = responseData.value("selectedProfile").toObject();
QString currentProfileId = currentProfile.value("id").toString("");
if (currentProfileId.isEmpty())
{
changeState(STATE_FAILED_HARD, tr("Authentication server didn't specify a currently selected profile. The account exists, but likely isn't premium."));
return;
}
if (!m_account->setCurrentProfile(currentProfileId))
{
changeState(STATE_FAILED_HARD, tr("Authentication server specified a selected profile that wasn't in the available profiles list."));
return;
}
// this is what the vanilla launcher passes to the userProperties launch param
if (responseData.contains("user"))
{
User u;
auto obj = responseData.value("user").toObject();
u.id = obj.value("id").toString();
auto propArray = obj.value("properties").toArray();
for (auto prop : propArray)
{
auto propTuple = prop.toObject();
auto name = propTuple.value("name").toString();
auto value = propTuple.value("value").toString();
u.properties.insert(name, value);
}
m_account->m_user = u;
}
// We've made it through the minefield of possible errors. Return true to indicate that
// we've succeeded.
qDebug() << "Finished reading authentication response.";
changeState(STATE_SUCCEEDED);
}
QString AuthenticateTask::getEndpoint() const
{
return "authenticate";
}
QString AuthenticateTask::getStateMessage() const
{
switch (m_state)
{
case STATE_SENDING_REQUEST:
return tr("Authenticating: Sending request...");
case STATE_PROCESSING_RESPONSE:
return tr("Authenticating: Processing response...");
default:
return YggdrasilTask::getStateMessage();
}
}
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