sneedmc/api/logic/minecraft/auth/YggdrasilTask.cpp

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/* Copyright 2013-2015 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 "YggdrasilTask.h"
#include "MojangAccount.h"
#include <QObject>
#include <QString>
#include <QJsonObject>
#include <QJsonDocument>
#include <QNetworkReply>
#include <QByteArray>
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#include <Env.h>
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#include <net/URLConstants.h>
#include <QDebug>
YggdrasilTask::YggdrasilTask(MojangAccount *account, QObject *parent)
: Task(parent), m_account(account)
{
changeState(STATE_CREATED);
}
void YggdrasilTask::executeTask()
{
changeState(STATE_SENDING_REQUEST);
// Get the content of the request we're going to send to the server.
QJsonDocument doc(getRequestContent());
QUrl reqUrl("https://" + URLConstants::AUTH_BASE + getEndpoint());
QNetworkRequest netRequest(reqUrl);
netRequest.setHeader(QNetworkRequest::ContentTypeHeader, "application/json");
QByteArray requestData = doc.toJson();
m_netReply = ENV.qnam().post(netRequest, requestData);
connect(m_netReply, &QNetworkReply::finished, this, &YggdrasilTask::processReply);
connect(m_netReply, &QNetworkReply::uploadProgress, this, &YggdrasilTask::refreshTimers);
connect(m_netReply, &QNetworkReply::downloadProgress, this, &YggdrasilTask::refreshTimers);
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connect(m_netReply, &QNetworkReply::sslErrors, this, &YggdrasilTask::sslErrors);
timeout_keeper.setSingleShot(true);
timeout_keeper.start(timeout_max);
counter.setSingleShot(false);
counter.start(time_step);
progress(0, timeout_max);
connect(&timeout_keeper, &QTimer::timeout, this, &YggdrasilTask::abortByTimeout);
connect(&counter, &QTimer::timeout, this, &YggdrasilTask::heartbeat);
}
void YggdrasilTask::refreshTimers(qint64, qint64)
{
timeout_keeper.stop();
timeout_keeper.start(timeout_max);
progress(count = 0, timeout_max);
}
void YggdrasilTask::heartbeat()
{
count += time_step;
progress(count, timeout_max);
}
bool YggdrasilTask::abort()
{
progress(timeout_max, timeout_max);
// TODO: actually use this in a meaningful way
m_aborted = YggdrasilTask::BY_USER;
m_netReply->abort();
return true;
}
void YggdrasilTask::abortByTimeout()
{
progress(timeout_max, timeout_max);
// TODO: actually use this in a meaningful way
m_aborted = YggdrasilTask::BY_TIMEOUT;
m_netReply->abort();
}
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void YggdrasilTask::sslErrors(QList<QSslError> errors)
{
int i = 1;
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for (auto error : errors)
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{
qCritical() << "LOGIN SSL Error #" << i << " : " << error.errorString();
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auto cert = error.certificate();
qCritical() << "Certificate in question:\n" << cert.toText();
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i++;
}
}
void YggdrasilTask::processReply()
{
changeState(STATE_PROCESSING_RESPONSE);
switch (m_netReply->error())
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{
case QNetworkReply::NoError:
break;
case QNetworkReply::TimeoutError:
changeState(STATE_FAILED_SOFT, tr("Authentication operation timed out."));
return;
case QNetworkReply::OperationCanceledError:
changeState(STATE_FAILED_SOFT, tr("Authentication operation cancelled."));
return;
case QNetworkReply::SslHandshakeFailedError:
changeState(
STATE_FAILED_SOFT,
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tr("<b>SSL Handshake failed.</b><br/>There might be a few causes for it:<br/>"
"<ul>"
"<li>You use Windows XP and need to <a "
"href=\"http://www.microsoft.com/en-us/download/details.aspx?id=38918\">update "
"your root certificates</a></li>"
"<li>Some device on your network is interfering with SSL traffic. In that case, "
"you have bigger worries than Minecraft not starting.</li>"
"<li>Possibly something else. Check the MultiMC log file for details</li>"
"</ul>"));
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return;
// used for invalid credentials and similar errors. Fall through.
case QNetworkReply::ContentOperationNotPermittedError:
break;
default:
changeState(STATE_FAILED_SOFT,
tr("Authentication operation failed due to a network error: %1 (%2)")
.arg(m_netReply->errorString()).arg(m_netReply->error()));
return;
}
// Try to parse the response regardless of the response code.
// Sometimes the auth server will give more information and an error code.
QJsonParseError jsonError;
QByteArray replyData = m_netReply->readAll();
QJsonDocument doc = QJsonDocument::fromJson(replyData, &jsonError);
// Check the response code.
int responseCode = m_netReply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
if (responseCode == 200)
{
// If the response code was 200, then there shouldn't be an error. Make sure
// anyways.
// Also, sometimes an empty reply indicates success. If there was no data received,
// pass an empty json object to the processResponse function.
if (jsonError.error == QJsonParseError::NoError || replyData.size() == 0)
{
processResponse(replyData.size() > 0 ? doc.object() : QJsonObject());
return;
}
else
{
changeState(STATE_FAILED_SOFT, tr("Failed to parse authentication server response "
"JSON response: %1 at offset %2.")
.arg(jsonError.errorString())
.arg(jsonError.offset));
qCritical() << replyData;
}
return;
}
// If the response code was not 200, then Yggdrasil may have given us information
// about the error.
// If we can parse the response, then get information from it. Otherwise just say
// there was an unknown error.
if (jsonError.error == QJsonParseError::NoError)
{
// We were able to parse the server's response. Woo!
// Call processError. If a subclass has overridden it then they'll handle their
// stuff there.
qDebug() << "The request failed, but the server gave us an error message. "
"Processing error.";
processError(doc.object());
}
else
{
// The server didn't say anything regarding the error. Give the user an unknown
// error.
qDebug()
<< "The request failed and the server gave no error message. Unknown error.";
changeState(STATE_FAILED_SOFT,
tr("An unknown error occurred when trying to communicate with the "
"authentication server: %1").arg(m_netReply->errorString()));
}
}
void YggdrasilTask::processError(QJsonObject responseData)
{
QJsonValue errorVal = responseData.value("error");
QJsonValue errorMessageValue = responseData.value("errorMessage");
QJsonValue causeVal = responseData.value("cause");
if (errorVal.isString() && errorMessageValue.isString())
{
m_error = std::shared_ptr<Error>(new Error{
errorVal.toString(""), errorMessageValue.toString(""), causeVal.toString("")});
changeState(STATE_FAILED_HARD, m_error->m_errorMessageVerbose);
}
else
{
// Error is not in standard format. Don't set m_error and return unknown error.
changeState(STATE_FAILED_HARD, tr("An unknown Yggdrasil error occurred."));
}
}
QString YggdrasilTask::getStateMessage() const
{
switch (m_state)
{
case STATE_CREATED:
return "Waiting...";
case STATE_SENDING_REQUEST:
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return tr("Sending request to auth servers...");
case STATE_PROCESSING_RESPONSE:
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return tr("Processing response from servers...");
case STATE_SUCCEEDED:
return tr("Authentication task succeeded.");
case STATE_FAILED_SOFT:
return tr("Failed to contact the authentication server.");
case STATE_FAILED_HARD:
return tr("Failed to authenticate.");
default:
return tr("...");
}
}
void YggdrasilTask::changeState(YggdrasilTask::State newState, QString reason)
{
m_state = newState;
setStatus(getStateMessage());
if (newState == STATE_SUCCEEDED)
{
emitSucceeded();
}
else if (newState == STATE_FAILED_HARD || newState == STATE_FAILED_SOFT)
{
emitFailed(reason);
}
}
YggdrasilTask::State YggdrasilTask::state()
{
return m_state;
}