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// SPDX-FileCopyrightText: 2021 Tobias Fella <fella@posteo.de>
// SPDX-License-Identifier: LGPL-2.1-or-later
#include "database.h"
#include <QtSql/QSqlDatabase>
#include <QtSql/QSqlQuery>
#include <QtSql/QSqlError>
#include <QtCore/QStandardPaths>
#include <QtCore/QDebug>
#include <QtCore/QDir>
#include "crypto/e2ee.h"
#include "crypto/qolmsession.h"
#include "crypto/qolminboundsession.h"
//TODO: delete room specific data when leaving room
using namespace Quotient;
Database::Database()
{
QSqlDatabase::addDatabase(QStringLiteral("QSQLITE"));
QString databasePath = QStandardPaths::writableLocation(QStandardPaths::AppDataLocation);
QDir(databasePath).mkpath(databasePath);
QSqlDatabase::database().setDatabaseName(databasePath + QStringLiteral("/database.db3"));
QSqlDatabase::database().open();
switch(version()) {
case 0: migrateTo1();
}
}
int Database::version()
{
auto query = execute(QStringLiteral("PRAGMA user_version;"));
if (query.next()) {
bool ok;
int value = query.value(0).toInt(&ok);
qDebug() << "Database version" << value;
if (ok)
return value;
} else {
qCritical() << "Failed to check database version";
}
return -1;
}
QSqlQuery Database::execute(const QString &queryString)
{
auto query = QSqlDatabase::database().exec(queryString);
if (query.lastError().type() != QSqlError::NoError) {
qCritical() << "Failed to execute query";
qCritical() << query.lastQuery();
qCritical() << query.lastError();
}
return query;
}
QSqlQuery Database::execute(QSqlQuery &query)
{
if (!query.exec()) {
qCritical() << "Failed to execute query";
qCritical() << query.lastQuery();
qCritical() << query.lastError();
}
return query;
}
void Database::transaction()
{
QSqlDatabase::database().transaction();
}
void Database::commit()
{
QSqlDatabase::database().commit();
}
void Database::migrateTo1()
{
qDebug() << "Migrating database to version 1";
transaction();
execute(QStringLiteral("CREATE TABLE Accounts (matrixId TEXT UNIQUE, pickle TEXT);"));
execute(QStringLiteral("CREATE TABLE OlmSessions (matrixId TEXT, senderKey TEXT, sessionId TEXT, pickle TEXT);"));
execute(QStringLiteral("CREATE TABLE InboundMegolmSessions (matrixId TEXT, roomId TEXT, senderKey TEXT, sessionId TEXT, pickle TEXT);"));
execute(QStringLiteral("CREATE TABLE OutboundMegolmSessions (matrixId TEXT, roomId TEXT, senderKey TEXT, sessionId TEXT, pickle TEXT);"));
execute(QStringLiteral("CREATE TABLE GroupSessionIndexRecord (matrixId TEXT, roomId TEXT, sessionId TEXT, i INTEGER, eventId TEXT, ts INTEGER);"));
execute(QStringLiteral("PRAGMA user_version = 1;"));
commit();
}
QByteArray Database::accountPickle(const QString &id)
{
QSqlQuery query;
query.prepare(QStringLiteral("SELECT pickle FROM Accounts WHERE matrixId=:matrixId;"));
query.bindValue(":matrixId", id);
execute(query);
if (query.next()) {
return query.value(QStringLiteral("pickle")).toByteArray();
}
return {};
}
void Database::setAccountPickle(const QString &id, const QByteArray &pickle)
{
QSqlQuery query;
query.prepare(QStringLiteral("INSERT INTO Accounts(matrixId, pickle) VALUES(:matrixId, :pickle) ON CONFLICT (matrixId) DO UPDATE SET pickle=:pickle WHERE matrixId=:matrixId;"));
query.bindValue(":matrixId", id);
query.bindValue(":pickle", pickle);
transaction();
execute(query);
commit();
}
void Database::clear(const QString &id)
{
QSqlQuery query;
query.prepare(QStringLiteral("DELETE FROM Accounts(matrixId, pickle) WHERE matrixId=:matrixId;"));
query.bindValue(":matrixId", id);
QSqlQuery sessionsQuery;
sessionsQuery.prepare(QStringLiteral("DELETE FROM OlmSessions WHERE matrixId=:matrixId;"));
sessionsQuery.bindValue(":matrixId", id);
QSqlQuery megolmSessionsQuery;
megolmSessionsQuery.prepare(QStringLiteral("DELETE FROM InboundMegolmSessions WHERE matrixId=:matrixId;"));
megolmSessionsQuery.bindValue(":matrixId", id);
QSqlQuery groupSessionIndexRecordQuery;
groupSessionIndexRecordQuery.prepare(QStringLiteral("DELETE FROM GroupSessionIndexRecord WHERE matrixId=:matrixId;"));
groupSessionIndexRecordQuery.bindValue(":matrixId", matrixId);
transaction();
execute(query);
execute(sessionsQuery);
execute(megolmSessionsQuery);
execute(groupSessionIndexRecordQuery);
commit();
}
void Database::saveOlmSession(const QString& matrixId, const QString& senderKey, const QString& sessionId, const QByteArray &pickle)
{
QSqlQuery query;
query.prepare(QStringLiteral("INSERT INTO OlmSessions(matrixId, senderKey, sessionId, pickle) VALUES(:matrixId, :senderKey, :sessionId, :pickle);"));
query.bindValue(":matrixId", matrixId);
query.bindValue(":senderKey", senderKey);
query.bindValue(":sessionId", sessionId);
query.bindValue(":pickle", pickle);
transaction();
execute(query);
commit();
}
UnorderedMap<QString, std::vector<QOlmSessionPtr>> Database::loadOlmSessions(const QString& matrixId, const PicklingMode& picklingMode)
{
QSqlQuery query;
query.prepare(QStringLiteral("SELECT * FROM OlmSessions WHERE matrixId=:matrixId;"));
query.bindValue(":matrixId", matrixId);
transaction();
execute(query);
commit();
UnorderedMap<QString, std::vector<QOlmSessionPtr>> sessions;
while (query.next()) {
auto session = QOlmSession::unpickle(query.value("pickle").toByteArray(), picklingMode);
if (std::holds_alternative<QOlmError>(session)) {
qCWarning(E2EE) << "Failed to unpickle olm session";
continue;
}
sessions[query.value("senderKey").toString()].push_back(std::move(std::get<QOlmSessionPtr>(session)));
}
return sessions;
}
UnorderedMap<QPair<QString, QString>, QOlmInboundGroupSessionPtr> Database::loadMegolmSessions(const QString& matrixId, const QString& roomId, const PicklingMode& picklingMode)
{
QSqlQuery query;
query.prepare(QStringLiteral("SELECT * FROM InboundMegolmSessions WHERE matrixId=:matrixId AND roomId=:roomId;"));
query.bindValue(":matrixId", matrixId);
query.bindValue(":roomId", roomId);
transaction();
execute(query);
commit();
UnorderedMap<QPair<QString, QString>, QOlmInboundGroupSessionPtr> sessions;
while (query.next()) {
auto session = QOlmInboundGroupSession::unpickle(query.value("pickle").toByteArray(), picklingMode);
if (std::holds_alternative<QOlmError>(session)) {
qCWarning(E2EE) << "Failed to unpickle megolm session";
continue;
}
sessions[{query.value("senderKey").toString(), query.value("sessionId").toString()}] = std::move(std::get<QOlmInboundGroupSessionPtr>(session));
}
return sessions;
}
void Database::saveMegolmSession(const QString& matrixId, const QString& roomId, const QString& senderKey, const QString& sessionId, const QByteArray& pickle)
{
QSqlQuery query;
query.prepare(QStringLiteral("INSERT INTO InboundMegolmSessions(matrixId, roomId, senderKey, sessionId, pickle) VALUES(:matrixId, :roomId, :senderKey, :sessionId, :pickle);"));
query.bindValue(":matrixId", matrixId);
query.bindValue(":roomId", roomId);
query.bindValue(":senderKey", senderKey);
query.bindValue(":sessionId", sessionId);
query.bindValue(":pickle", pickle);
transaction();
execute(query);
commit();
}
void Database::addGroupSessionIndexRecord(const QString& matrixId, const QString& roomId, const QString& sessionId, uint32_t index, const QString& eventId, qint64 ts)
{
QSqlQuery query;
query.prepare("INSERT INTO GroupSessionIndexRecord(matrixId, roomId, sessionId, i, eventId, ts) VALUES(:matrixId, :roomId, :sessionId, :index, :eventId, :ts);");
query.bindValue(":matrixId", matrixId);
query.bindValue(":roomId", roomId);
query.bindValue(":sessionId", sessionId);
query.bindValue(":index", index);
query.bindValue(":eventId", eventId);
query.bindValue(":ts", ts);
transaction();
execute(query);
commit();
}
QPair<QString, qint64> Database::groupSessionIndexRecord(const QString& matrixId, const QString& roomId, const QString& sessionId, qint64 index)
{
QSqlQuery query;
query.prepare(QStringLiteral("SELECT * FROM GroupSessionIndexRecord WHERE matrixId=:matrixId AND roomId=:roomId AND sessionId=:sessionId AND i=:index;"));
query.bindValue(":matrixId", matrixId);
query.bindValue(":roomId", roomId);
query.bindValue(":sessionId", sessionId);
query.bindValue(":index", index);
transaction();
execute(query);
commit();
if (!query.next()) {
return {};
}
return {query.value("eventId").toString(), query.value("ts").toLongLong()};
}
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