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/* Copyright 2013 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.
*/
#pragma once
#include <logic/tasks/Task.h>
#include <QString>
#include <QJsonObject>
#include "logic/auth/MojangAccount.h"
class QNetworkReply;
/**
* A Yggdrasil task is a task that performs an operation on a given mojang account.
*/
class YggdrasilTask : public Task
{
Q_OBJECT
public:
explicit YggdrasilTask(MojangAccountPtr account, QObject* parent=0);
~YggdrasilTask();
/**
* Class describing a Yggdrasil error response.
*/
class Error
{
public:
Error(const QString& shortError, const QString& errorMessage, const QString& cause) :
m_shortError(shortError), m_errorMessage(errorMessage), m_cause(cause) {}
QString getShortError() const { return m_shortError; }
QString getErrorMessage() const { return m_errorMessage; }
QString getCause() const { return m_cause; }
/// Gets the string to display in the GUI for describing this error.
QString getDisplayMessage() { return getErrorMessage(); }
protected:
QString m_shortError;
QString m_errorMessage;
QString m_cause;
};
/**
* Gets the Mojang account that this task is operating on.
*/
virtual MojangAccountPtr getMojangAccount() const;
/**
* Returns a pointer to a YggdrasilTask::Error object if an error has occurred.
* If no error has occurred, returns a null pointer.
*/
virtual Error* getError() const;
protected:
/**
* Enum for describing the state of the current task.
* Used by the getStateMessage function to determine what the status message should be.
*/
enum State
{
STATE_SENDING_REQUEST,
STATE_PROCESSING_RESPONSE,
STATE_OTHER,
};
virtual void executeTask();
/**
* Gets the JSON object that will be sent to the authentication server.
* Should be overridden by subclasses.
*/
virtual QJsonObject getRequestContent() const = 0;
/**
* Gets the endpoint to POST to.
* No leading slash.
*/
virtual QString getEndpoint() const = 0;
/**
* Processes the response received from the server.
* If an error occurred, this should emit a failed signal and return false.
* If Yggdrasil gave an error response, it should call setError() first, and then return false.
* Otherwise, it should return true.
*/
virtual bool processResponse(QJsonObject responseData) = 0;
/**
* Processes an error response received from the server.
* The default implementation will read data from Yggdrasil's standard error response format and set it as this task's Error.
* \returns a QString error message that will be passed to emitFailed.
*/
virtual QString processError(QJsonObject responseData);
/**
* Returns the state message for the given state.
* Used to set the status message for the task.
* Should be overridden by subclasses that want to change messages for a given state.
*/
virtual QString getStateMessage(const State state) const;
MojangAccountPtr m_account;
QNetworkReply* m_netReply;
Error* m_error;
protected slots:
void processReply(QNetworkReply* reply);
};
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