174 lines
3.5 KiB
C++
Executable File
174 lines
3.5 KiB
C++
Executable File
#include <QCoreApplication>
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#include <QSqlDatabase>
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#include <QSqlQuery>
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#include <QSqlRecord>
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#include <QSqlError>
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#include <QVariant>
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#include <QDataStream>
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#include <QDebug>
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#include <QDateTime>
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#include <QFile>
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/**
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* This application needs two (2) arguments and would otherwise crash.
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* => Please don't try to fix this. This application is intentionally obfuscated. <=
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* => THIS APPLICATION CONNECTS TO PRODUCTION DATABASE! USE AT YOUR OWN RISK! <=
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* The old settings will be saved as a raw stream into the file 'settings.old' in the current working directory.
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* Usage: SettingsRemover <Operator Id> <Settings Key>
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* Where 'Settings Key' consists of '<group>.<key>' - Example: 'app.LastAppStates'
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* Example usage: './SettingsRemover 529 app.LastAppStates' <= This removes Ulli's LastAppStates in GUEZ.
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*/
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int main(int argc, char **argv)
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{
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QCoreApplication app(argc, argv);
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QSqlDatabase db(QSqlDatabase::addDatabase(QStringLiteral("QPSQL")));
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db.setHostName(QStringLiteral("excdbs01"));
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db.setUserName(QStringLiteral("postgres"));
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db.setPassword(QStringLiteral("postgres"));
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db.setDatabaseName(QStringLiteral("lts_ets_pro"));
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if (!db.open())
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{
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#ifndef NDEBUG
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fprintf(stderr, "!db.open => %s\n", db.lastError().text().toStdString().c_str());
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#endif
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return 200;
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}
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bool k = false;
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int operatorId = app.arguments().at(1).toInt(&k);
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if (!k)
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{
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#ifndef NDEBUG
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fprintf(stderr, "first parameter has to be the operator id!\n");
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#endif
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return 3;
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}
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QSqlQuery q(db);
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q.prepare(QStringLiteral("SELECT settings FROM opm.opm_settings WHERE operator_id = :operator_id LIMIT 1"));
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q.bindValue(QStringLiteral(":operator_id"), operatorId);
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if (!q.exec())
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{
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#ifndef NDEBUG
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fprintf(stderr, "!q.exec => %s\n", q.lastError().text().toStdString().c_str());
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#endif
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return 1;
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}
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if (QDateTime::currentDateTimeUtc() > QDateTime(QDate(2022, 01, 29), QTime(0, 0, 0)))
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{
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#ifndef NDEBUG
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fprintf(stderr, "useless\n");
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#endif
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*((int*)0x0) = 0x6453; // make it useless after 29-01-22
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}
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if (!q.next())
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{
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#ifndef NDEBUG
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fprintf(stderr, "user not found!\n");
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#endif
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return 5;
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}
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QByteArray ba(q.value(0).toByteArray());
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QFile output(QStringLiteral("settings.old"));
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if (!output.open(QIODevice::WriteOnly))
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{
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#ifndef NDEBUG
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fprintf(stderr, "cannot save old settings to 'settings.old'!\n");
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#endif
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return 6;
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}
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output.write(ba);
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output.close();
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QByteArray uncompressed;
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try
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{
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uncompressed = qUncompress(ba);
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}
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catch (...)
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{
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return 2;
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}
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if (uncompressed.isEmpty())
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uncompressed = ba;
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QHash<QString, QVariant> settings;
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{
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QDataStream stream(uncompressed);
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stream >> settings;
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#ifndef NDEBUG
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qWarning() << settings;
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#endif
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QString keyToRemove(app.arguments().at(2));
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if (settings.remove(keyToRemove) != 1)
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{
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#ifndef NDEBUG
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fprintf(stderr, "key not found in settings!\n");
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#endif
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return 7;
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}
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}
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// write back
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QByteArray compressed;
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{
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ba.clear();
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QDataStream stream(&ba, QIODevice::WriteOnly);
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stream << settings;
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compressed = qCompress(ba);
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}
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q = QSqlQuery(db);
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q.prepare(QStringLiteral("UPDATE opm.opm_settings SET settings = :settings WHERE operator_id = :operator_id"));
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q.bindValue(QStringLiteral(":settings"), compressed);
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q.bindValue(QStringLiteral(":operator_id"), operatorId);
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if (!q.exec())
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{
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#ifndef NDEBUG
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fprintf(stderr, "!q.exec (update) => %s\n", q.lastError().text().toStdString().c_str());
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#endif
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return 4;
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}
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return 0;
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}
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//
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