PrismLauncher/logic/auth/MojangAccountList.cpp

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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.
*/
#include "logic/auth/MojangAccountList.h"
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#include <QIODevice>
#include <QFile>
#include <QTextStream>
#include <QJsonDocument>
#include <QJsonArray>
#include <QJsonObject>
#include <QJsonParseError>
#include "logger/QsLog.h"
#include "logic/auth/MojangAccount.h"
#define ACCOUNT_LIST_FORMAT_VERSION 2
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MojangAccountList::MojangAccountList(QObject *parent) : QAbstractListModel(parent)
{
}
MojangAccountPtr MojangAccountList::findAccount(const QString &username) const
{
for (int i = 0; i < count(); i++)
{
MojangAccountPtr account = at(i);
if (account->username() == username)
return account;
}
return nullptr;
}
const MojangAccountPtr MojangAccountList::at(int i) const
{
return MojangAccountPtr(m_accounts.at(i));
}
void MojangAccountList::addAccount(const MojangAccountPtr account)
{
beginResetModel();
connect(account.get(), SIGNAL(changed()), SLOT(accountChanged()));
m_accounts.append(account);
endResetModel();
onListChanged();
}
void MojangAccountList::removeAccount(const QString &username)
{
beginResetModel();
for (auto account : m_accounts)
{
if (account->username() == username)
{
m_accounts.removeOne(account);
return;
}
}
endResetModel();
onListChanged();
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}
void MojangAccountList::removeAccount(QModelIndex index)
{
beginResetModel();
m_accounts.removeAt(index.row());
endResetModel();
onListChanged();
}
MojangAccountPtr MojangAccountList::activeAccount() const
{
return m_activeAccount;
}
void MojangAccountList::setActiveAccount(const QString &username)
{
beginResetModel();
if (username.isEmpty())
{
m_activeAccount = nullptr;
}
else
{
for (MojangAccountPtr account : m_accounts)
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{
if (account->username() == username)
m_activeAccount = account;
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}
}
endResetModel();
onActiveChanged();
}
void MojangAccountList::accountChanged()
{
// the list changed. there is no doubt.
onListChanged();
}
void MojangAccountList::onListChanged()
{
if (m_autosave)
// TODO: Alert the user if this fails.
saveList();
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emit listChanged();
}
void MojangAccountList::onActiveChanged()
{
if (m_autosave)
saveList();
emit activeAccountChanged();
}
int MojangAccountList::count() const
{
return m_accounts.count();
}
QVariant MojangAccountList::data(const QModelIndex &index, int role) const
{
if (!index.isValid())
return QVariant();
if (index.row() > count())
return QVariant();
MojangAccountPtr account = at(index.row());
switch (role)
{
case Qt::DisplayRole:
switch (index.column())
{
case ActiveColumn:
return account == m_activeAccount;
case NameColumn:
return account->username();
default:
return QVariant();
}
case Qt::ToolTipRole:
return account->username();
case PointerRole:
return qVariantFromValue(account);
default:
return QVariant();
}
}
QVariant MojangAccountList::headerData(int section, Qt::Orientation orientation, int role) const
{
switch (role)
{
case Qt::DisplayRole:
switch (section)
{
case ActiveColumn:
return "Active?";
case NameColumn:
return "Name";
default:
return QVariant();
}
case Qt::ToolTipRole:
switch (section)
{
case NameColumn:
return "The name of the version.";
default:
return QVariant();
}
default:
return QVariant();
}
}
int MojangAccountList::rowCount(const QModelIndex &parent) const
{
// Return count
return count();
}
int MojangAccountList::columnCount(const QModelIndex &parent) const
{
return 2;
}
void MojangAccountList::updateListData(QList<MojangAccountPtr> versions)
{
beginResetModel();
m_accounts = versions;
endResetModel();
}
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bool MojangAccountList::loadList(const QString &filePath)
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{
QString path = filePath;
if (path.isEmpty())
path = m_listFilePath;
if (path.isEmpty())
{
QLOG_ERROR() << "Can't load Mojang account list. No file path given and no default set.";
return false;
}
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QFile file(path);
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// Try to open the file and fail if we can't.
// TODO: We should probably report this error to the user.
if (!file.open(QIODevice::ReadOnly))
{
QLOG_ERROR() << QString("Failed to read the account list file (%1).").arg(path).toUtf8();
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return false;
}
// Read the file and close it.
QByteArray jsonData = file.readAll();
file.close();
QJsonParseError parseError;
QJsonDocument jsonDoc = QJsonDocument::fromJson(jsonData, &parseError);
// Fail if the JSON is invalid.
if (parseError.error != QJsonParseError::NoError)
{
QLOG_ERROR() << QString("Failed to parse account list file: %1 at offset %2")
.arg(parseError.errorString(), QString::number(parseError.offset))
.toUtf8();
return false;
}
// Make sure the root is an object.
if (!jsonDoc.isObject())
{
QLOG_ERROR() << "Invalid account list JSON: Root should be an array.";
return false;
}
QJsonObject root = jsonDoc.object();
// Make sure the format version matches.
if (root.value("formatVersion").toVariant().toInt() != ACCOUNT_LIST_FORMAT_VERSION)
{
QString newName = "accounts-old.json";
QLOG_WARN() << "Format version mismatch when loading account list. Existing one will be renamed to"
<< newName;
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// Attempt to rename the old version.
file.rename(newName);
return false;
}
// Now, load the accounts array.
beginResetModel();
QJsonArray accounts = root.value("accounts").toArray();
for (QJsonValue accountVal : accounts)
{
QJsonObject accountObj = accountVal.toObject();
MojangAccountPtr account = MojangAccount::loadFromJson(accountObj);
if (account.get() != nullptr)
{
connect(account.get(), SIGNAL(changed()), SLOT(accountChanged()));
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m_accounts.append(account);
}
else
{
QLOG_WARN() << "Failed to load an account.";
}
}
// Load the active account.
m_activeAccount = findAccount(root.value("activeAccount").toString(""));
endResetModel();
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return true;
}
bool MojangAccountList::saveList(const QString &filePath)
{
QString path(filePath);
if (path.isEmpty())
path = m_listFilePath;
if (path.isEmpty())
{
QLOG_ERROR() << "Can't save Mojang account list. No file path given and no default set.";
return false;
}
QLOG_INFO() << "Writing account list to" << path;
QLOG_DEBUG() << "Building JSON data structure.";
// Build the JSON document to write to the list file.
QJsonObject root;
root.insert("formatVersion", ACCOUNT_LIST_FORMAT_VERSION);
// Build a list of accounts.
QLOG_DEBUG() << "Building account array.";
QJsonArray accounts;
for (MojangAccountPtr account : m_accounts)
{
QJsonObject accountObj = account->saveToJson();
accounts.append(accountObj);
}
// Insert the account list into the root object.
root.insert("accounts", accounts);
if(m_activeAccount)
{
// Save the active account.
root.insert("activeAccount", m_activeAccount->username());
}
// Create a JSON document object to convert our JSON to bytes.
QJsonDocument doc(root);
// Now that we're done building the JSON object, we can write it to the file.
QLOG_DEBUG() << "Writing account list to file.";
QFile file(path);
// Try to open the file and fail if we can't.
// TODO: We should probably report this error to the user.
if (!file.open(QIODevice::WriteOnly))
{
QLOG_ERROR() << QString("Failed to read the account list file (%1).").arg(path).toUtf8();
return false;
}
// Write the JSON to the file.
file.write(doc.toJson());
file.close();
QLOG_INFO() << "Saved account list to" << path;
return true;
}
void MojangAccountList::setListFilePath(QString path, bool autosave)
{
m_listFilePath = path;
m_autosave = autosave;
}