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qTox/src/core/core.cpp

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/*
Copyright © 2013 by Maxim Biro <nurupo.contributions@gmail.com>
Copyright © 2014-2019 by The qTox Project Contributors
This file is part of qTox, a Qt-based graphical interface for Tox.
qTox is libre software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
qTox is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with qTox. If not, see <http://www.gnu.org/licenses/>.
*/
#include "core.h"
#include "corefile.h"
#include "src/core/coreav.h"
#include "src/core/dhtserver.h"
#include "src/core/icoresettings.h"
#include "src/core/toxlogger.h"
#include "src/core/toxoptions.h"
#include "src/core/toxstring.h"
#include "src/model/groupinvite.h"
#include "src/model/status.h"
#include "src/net/bootstrapnodeupdater.h"
#include "src/nexus.h"
#include "src/persistence/profile.h"
#include "src/util/strongtype.h"
#include <QCoreApplication>
#include <QRegularExpression>
#include <QString>
#include <QStringBuilder>
#include <QTimer>
#include <cassert>
#include <memory>
const QString Core::TOX_EXT = ".tox";
#define ASSERT_CORE_THREAD assert(QThread::currentThread() == coreThread.get())
namespace {
bool LogConferenceTitleError(TOX_ERR_CONFERENCE_TITLE error)
{
switch (error) {
case TOX_ERR_CONFERENCE_TITLE_OK:
break;
case TOX_ERR_CONFERENCE_TITLE_CONFERENCE_NOT_FOUND:
qWarning() << "Conference title not found";
break;
case TOX_ERR_CONFERENCE_TITLE_INVALID_LENGTH:
qWarning() << "Invalid conference title length";
break;
case TOX_ERR_CONFERENCE_TITLE_FAIL_SEND:
qWarning() << "Failed to send title packet";
}
return error;
}
bool parseFriendSendMessageError(Tox_Err_Friend_Send_Message error)
{
switch (error) {
case TOX_ERR_FRIEND_SEND_MESSAGE_OK:
return true;
case TOX_ERR_FRIEND_SEND_MESSAGE_NULL:
qCritical() << "Send friend message passed an unexpected null argument";
return false;
case TOX_ERR_FRIEND_SEND_MESSAGE_FRIEND_NOT_FOUND:
qCritical() << "Send friend message could not find friend";
return false;
case TOX_ERR_FRIEND_SEND_MESSAGE_FRIEND_NOT_CONNECTED:
qCritical() << "Send friend message: friend is offline";
return false;
case TOX_ERR_FRIEND_SEND_MESSAGE_SENDQ:
qCritical() << "Failed to allocate more message queue";
return false;
case TOX_ERR_FRIEND_SEND_MESSAGE_TOO_LONG:
qCritical() << "Attemped to send message that's too long";
return false;
case TOX_ERR_FRIEND_SEND_MESSAGE_EMPTY:
qCritical() << "Attempted to send an empty message";
return false;
default:
qCritical() << "Unknown friend send message error:" << static_cast<int>(error);
return false;
}
}
bool parseConferenceSendMessageError(Tox_Err_Conference_Send_Message error)
{
switch (error) {
case TOX_ERR_CONFERENCE_SEND_MESSAGE_OK:
return true;
case TOX_ERR_CONFERENCE_SEND_MESSAGE_CONFERENCE_NOT_FOUND:
qCritical() << "Conference not found";
return false;
case TOX_ERR_CONFERENCE_SEND_MESSAGE_FAIL_SEND:
qCritical() << "Conference message failed to send";
return false;
case TOX_ERR_CONFERENCE_SEND_MESSAGE_NO_CONNECTION:
qCritical() << "No connection";
return false;
case TOX_ERR_CONFERENCE_SEND_MESSAGE_TOO_LONG:
qCritical() << "Message too long";
return false;
default:
qCritical() << "Unknown Tox_Err_Conference_Send_Message error:" << static_cast<int>(error);
return false;
}
}
} // namespace
Core::Core(QThread* coreThread)
: tox(nullptr)
, av(nullptr)
, toxTimer{new QTimer{this}}
, coreThread(coreThread)
{
assert(toxTimer);
toxTimer->setSingleShot(true);
connect(toxTimer, &QTimer::timeout, this, &Core::process);
connect(coreThread, &QThread::finished, toxTimer, &QTimer::stop);
}
Core::~Core()
{
// need to reset av first, because it uses tox
av.reset();
coreThread->exit(0);
coreThread->wait();
tox.reset();
}
/**
* @brief Registers all toxcore callbacks
* @param tox Tox instance to register the callbacks on
*/
void Core::registerCallbacks(Tox* tox)
{
tox_callback_friend_request(tox, onFriendRequest);
tox_callback_friend_message(tox, onFriendMessage);
tox_callback_friend_name(tox, onFriendNameChange);
tox_callback_friend_typing(tox, onFriendTypingChange);
tox_callback_friend_status_message(tox, onStatusMessageChanged);
tox_callback_friend_status(tox, onUserStatusChanged);
tox_callback_friend_connection_status(tox, onConnectionStatusChanged);
tox_callback_friend_read_receipt(tox, onReadReceiptCallback);
tox_callback_conference_invite(tox, onGroupInvite);
tox_callback_conference_message(tox, onGroupMessage);
tox_callback_conference_peer_list_changed(tox, onGroupPeerListChange);
tox_callback_conference_peer_name(tox, onGroupPeerNameChange);
tox_callback_conference_title(tox, onGroupTitleChange);
}
/**
* @brief Factory method for the Core object
* @param savedata empty if new profile or saved data else
* @param settings Settings specific to Core
* @return nullptr or a Core object ready to start
*/
ToxCorePtr Core::makeToxCore(const QByteArray& savedata, const ICoreSettings* const settings,
ToxCoreErrors* err)
{
QThread* thread = new QThread();
if (thread == nullptr) {
qCritical() << "could not allocate Core thread";
return {};
}
thread->setObjectName("qTox Core");
auto toxOptions = ToxOptions::makeToxOptions(savedata, settings);
if (toxOptions == nullptr) {
qCritical() << "could not allocate Tox Options data structure";
if (err) {
*err = ToxCoreErrors::ERROR_ALLOC;
}
return {};
}
ToxCorePtr core(new Core(thread));
if (core == nullptr) {
if (err) {
*err = ToxCoreErrors::ERROR_ALLOC;
}
return {};
}
Tox_Err_New tox_err;
core->tox = ToxPtr(tox_new(*toxOptions, &tox_err));
switch (tox_err) {
case TOX_ERR_NEW_OK:
break;
case TOX_ERR_NEW_LOAD_BAD_FORMAT:
qCritical() << "failed to parse Tox save data";
if (err) {
*err = ToxCoreErrors::BAD_PROXY;
}
return {};
case TOX_ERR_NEW_PORT_ALLOC:
if (toxOptions->getIPv6Enabled()) {
toxOptions->setIPv6Enabled(false);
core->tox = ToxPtr(tox_new(*toxOptions, &tox_err));
if (tox_err == TOX_ERR_NEW_OK) {
qWarning() << "Core failed to start with IPv6, falling back to IPv4. LAN discovery "
"may not work properly.";
break;
}
}
qCritical() << "can't to bind the port";
if (err) {
*err = ToxCoreErrors::FAILED_TO_START;
}
return {};
case TOX_ERR_NEW_PROXY_BAD_HOST:
case TOX_ERR_NEW_PROXY_BAD_PORT:
case TOX_ERR_NEW_PROXY_BAD_TYPE:
qCritical() << "bad proxy, error code:" << tox_err;
if (err) {
*err = ToxCoreErrors::BAD_PROXY;
}
return {};
case TOX_ERR_NEW_PROXY_NOT_FOUND:
qCritical() << "proxy not found";
if (err) {
*err = ToxCoreErrors::BAD_PROXY;
}
return {};
case TOX_ERR_NEW_LOAD_ENCRYPTED:
qCritical() << "attempted to load encrypted Tox save data";
if (err) {
*err = ToxCoreErrors::INVALID_SAVE;
}
return {};
case TOX_ERR_NEW_MALLOC:
qCritical() << "memory allocation failed";
if (err) {
*err = ToxCoreErrors::ERROR_ALLOC;
}
return {};
case TOX_ERR_NEW_NULL:
qCritical() << "a parameter was null";
if (err) {
*err = ToxCoreErrors::FAILED_TO_START;
}
return {};
default:
qCritical() << "Tox core failed to start, unknown error code:" << tox_err;
if (err) {
*err = ToxCoreErrors::FAILED_TO_START;
}
return {};
}
// tox should be valid by now
assert(core->tox != nullptr);
// toxcore is successfully created, create toxav
// TODO(sudden6): don't create CoreAv here, Core should be usable without CoreAV
core->av = CoreAV::makeCoreAV(core->tox.get());
if (!core->av) {
qCritical() << "Toxav failed to start";
if (err) {
*err = ToxCoreErrors::FAILED_TO_START;
}
return {};
}
// create CoreFile
core->file = CoreFile::makeCoreFile(core.get(), core->tox.get(), core->coreLoopLock);
if (!core->file) {
qCritical() << "CoreFile failed to start";
if (err) {
*err = ToxCoreErrors::FAILED_TO_START;
}
return {};
}
registerCallbacks(core->tox.get());
// connect the thread with the Core
connect(thread, &QThread::started, core.get(), &Core::onStarted);
core->moveToThread(thread);
// when leaving this function 'core' should be ready for it's start() action or
// a nullptr
return core;
}
void Core::onStarted()
{
ASSERT_CORE_THREAD;
// One time initialization stuff
QString name = getUsername();
if (!name.isEmpty()) {
emit usernameSet(name);
}
QString msg = getStatusMessage();
if (!msg.isEmpty()) {
emit statusMessageSet(msg);
}
ToxId id = getSelfId();
// Id comes from toxcore, must be valid
assert(id.isValid());
emit idSet(id);
loadFriends();
loadGroups();
process(); // starts its own timer
av->start();
emit avReady();
}
/**
* @brief Starts toxcore and it's event loop, can be called from any thread
*/
void Core::start()
{
coreThread->start();
}
/**
* @brief Returns the global widget's Core instance
*/
Core* Core::getInstance()
{
return Nexus::getCore();
}
const CoreAV* Core::getAv() const
{
return av.get();
}
CoreAV* Core::getAv()
{
return av.get();
}
CoreFile* Core::getCoreFile() const
{
return file.get();
}
/* Using the now commented out statements in checkConnection(), I watched how
* many ticks disconnects-after-initial-connect lasted. Out of roughly 15 trials,
* 5 disconnected; 4 were DCd for less than 20 ticks, while the 5th was ~50 ticks.
* So I set the tolerance here at 25, and initial DCs should be very rare now.
* This should be able to go to 50 or 100 without affecting legitimate disconnects'
* downtime, but lets be conservative for now. Edit: now ~~40~~ 30.
*/
#define CORE_DISCONNECT_TOLERANCE 30
/**
* @brief Processes toxcore events and ensure we stay connected, called by its own timer
*/
void Core::process()
{
QMutexLocker ml{&coreLoopLock};
ASSERT_CORE_THREAD;
static int tolerance = CORE_DISCONNECT_TOLERANCE;
tox_iterate(tox.get(), this);
#ifdef DEBUG
// we want to see the debug messages immediately
fflush(stdout);
#endif
// TODO(sudden6): recheck if this is still necessary
if (checkConnection()) {
tolerance = CORE_DISCONNECT_TOLERANCE;
} else if (!(--tolerance)) {
bootstrapDht();
tolerance = 3 * CORE_DISCONNECT_TOLERANCE;
}
unsigned sleeptime =
qMin(tox_iteration_interval(tox.get()), getCoreFile()->corefileIterationInterval());
toxTimer->start(sleeptime);
}
bool Core::checkConnection()
{
ASSERT_CORE_THREAD;
static bool isConnected = false;
bool toxConnected = tox_self_get_connection_status(tox.get()) != TOX_CONNECTION_NONE;
if (toxConnected && !isConnected) {
qDebug() << "Connected to the DHT";
emit connected();
} else if (!toxConnected && isConnected) {
qDebug() << "Disconnected from the DHT";
emit disconnected();
}
isConnected = toxConnected;
return toxConnected;
}
/**
* @brief Connects us to the Tox network
*/
void Core::bootstrapDht()
{
ASSERT_CORE_THREAD;
QList<DhtServer> bootstrapNodes = BootstrapNodeUpdater::loadDefaultBootstrapNodes();
int listSize = bootstrapNodes.size();
if (!listSize) {
qWarning() << "no bootstrap list?!?";
return;
}
int i = 0;
static int j = qrand() % listSize;
// i think the more we bootstrap, the more we jitter because the more we overwrite nodes
while (i < 2) {
const DhtServer& dhtServer = bootstrapNodes[j % listSize];
QString dhtServerAddress = dhtServer.address.toLatin1();
QString port = QString::number(dhtServer.port);
QString name = dhtServer.name;
qDebug() << QString("Connecting to %1:%2 (%3)").arg(dhtServerAddress, port, name);
QByteArray address = dhtServer.address.toLatin1();
// TODO: constucting the pk via ToxId is a workaround
ToxPk pk = ToxId{dhtServer.userId}.getPublicKey();
const uint8_t* pkPtr = pk.getData();
if (!tox_bootstrap(tox.get(), address.constData(), dhtServer.port, pkPtr, nullptr)) {
qDebug() << "Error bootstrapping from " + dhtServer.name;
}
if (!tox_add_tcp_relay(tox.get(), address.constData(), dhtServer.port, pkPtr, nullptr)) {
qDebug() << "Error adding TCP relay from " + dhtServer.name;
}
++j;
++i;
}
}
void Core::onFriendRequest(Tox*, const uint8_t* cFriendPk, const uint8_t* cMessage,
size_t cMessageSize, void* core)
{
ToxPk friendPk(cFriendPk);
QString requestMessage = ToxString(cMessage, cMessageSize).getQString();
emit static_cast<Core*>(core)->friendRequestReceived(friendPk, requestMessage);
}
void Core::onFriendMessage(Tox*, uint32_t friendId, Tox_Message_Type type, const uint8_t* cMessage,
size_t cMessageSize, void* core)
{
bool isAction = (type == TOX_MESSAGE_TYPE_ACTION);
QString msg = ToxString(cMessage, cMessageSize).getQString();
emit static_cast<Core*>(core)->friendMessageReceived(friendId, msg, isAction);
}
void Core::onFriendNameChange(Tox*, uint32_t friendId, const uint8_t* cName, size_t cNameSize, void* core)
{
QString newName = ToxString(cName, cNameSize).getQString();
emit static_cast<Core*>(core)->friendUsernameChanged(friendId, newName);
}
void Core::onFriendTypingChange(Tox*, uint32_t friendId, bool isTyping, void* core)
{
emit static_cast<Core*>(core)->friendTypingChanged(friendId, isTyping);
}
void Core::onStatusMessageChanged(Tox*, uint32_t friendId, const uint8_t* cMessage,
size_t cMessageSize, void* core)
{
QString message = ToxString(cMessage, cMessageSize).getQString();
emit static_cast<Core*>(core)->friendStatusMessageChanged(friendId, message);
}
void Core::onUserStatusChanged(Tox*, uint32_t friendId, Tox_User_Status userstatus, void* core)
{
Status::Status status;
switch (userstatus) {
case TOX_USER_STATUS_AWAY:
status = Status::Status::Away;
break;
case TOX_USER_STATUS_BUSY:
status = Status::Status::Busy;
break;
default:
status = Status::Status::Online;
break;
}
emit static_cast<Core*>(core)->friendStatusChanged(friendId, status);
}
void Core::onConnectionStatusChanged(Tox*, uint32_t friendId, Tox_Connection status, void* vCore)
{
Core* core = static_cast<Core*>(vCore);
Status::Status friendStatus =
status != TOX_CONNECTION_NONE ? Status::Status::Online : Status::Status::Offline;
// Ignore Online because it will be emited from onUserStatusChanged
bool isOffline = friendStatus == Status::Status::Offline;
if (isOffline) {
emit core->friendStatusChanged(friendId, friendStatus);
core->checkLastOnline(friendId);
}
}
void Core::onGroupInvite(Tox* tox, uint32_t friendId, Tox_Conference_Type type,
const uint8_t* cookie, size_t length, void* vCore)
{
Core* core = static_cast<Core*>(vCore);
const QByteArray data(reinterpret_cast<const char*>(cookie), length);
const GroupInvite inviteInfo(friendId, type, data);
switch (type) {
case TOX_CONFERENCE_TYPE_TEXT:
qDebug() << QString("Text group invite by %1").arg(friendId);
emit core->groupInviteReceived(inviteInfo);
break;
case TOX_CONFERENCE_TYPE_AV:
qDebug() << QString("AV group invite by %1").arg(friendId);
emit core->groupInviteReceived(inviteInfo);
break;
default:
qWarning() << "Group invite with unknown type " << type;
}
}
void Core::onGroupMessage(Tox*, uint32_t groupId, uint32_t peerId, Tox_Message_Type type,
const uint8_t* cMessage, size_t length, void* vCore)
{
Core* core = static_cast<Core*>(vCore);
bool isAction = type == TOX_MESSAGE_TYPE_ACTION;
QString message = ToxString(cMessage, length).getQString();
emit core->groupMessageReceived(groupId, peerId, message, isAction);
}
void Core::onGroupPeerListChange(Tox*, uint32_t groupId, void* vCore)
{
const auto core = static_cast<Core*>(vCore);
qDebug() << QString("Group %1 peerlist changed").arg(groupId);
emit core->groupPeerlistChanged(groupId);
}
void Core::onGroupPeerNameChange(Tox*, uint32_t groupId, uint32_t peerId, const uint8_t* name,
size_t length, void* vCore)
{
const auto newName = ToxString(name, length).getQString();
qDebug() << QString("Group %1, Peer %2, name changed to %3").arg(groupId).arg(peerId).arg(newName);
auto* core = static_cast<Core*>(vCore);
auto peerPk = core->getGroupPeerPk(groupId, peerId);
emit core->groupPeerNameChanged(groupId, peerPk, newName);
}
void Core::onGroupTitleChange(Tox*, uint32_t groupId, uint32_t peerId, const uint8_t* cTitle,
size_t length, void* vCore)
{
Core* core = static_cast<Core*>(vCore);
QString author = core->getGroupPeerName(groupId, peerId);
emit core->groupTitleChanged(groupId, author, ToxString(cTitle, length).getQString());
}
void Core::onReadReceiptCallback(Tox*, uint32_t friendId, uint32_t receipt, void* core)
{
emit static_cast<Core*>(core)->receiptRecieved(friendId, ReceiptNum{receipt});
}
void Core::acceptFriendRequest(const ToxPk& friendPk)
{
QMutexLocker ml{&coreLoopLock};
// TODO: error handling
uint32_t friendId = tox_friend_add_norequest(tox.get(), friendPk.getData(), nullptr);
if (friendId == std::numeric_limits<uint32_t>::max()) {
emit failedToAddFriend(friendPk);
} else {
emit saveRequest();
emit friendAdded(friendId, friendPk);
}
}
/**
* @brief Checks that sending friendship request is correct and returns error message accordingly
* @param friendId Id of a friend which request is destined to
* @param message Friendship request message
* @return Returns empty string if sending request is correct, according error message otherwise
*/
QString Core::getFriendRequestErrorMessage(const ToxId& friendId, const QString& message) const
{
QMutexLocker ml{&coreLoopLock};
if (!friendId.isValid()) {
return tr("Invalid Tox ID", "Error while sending friendship request");
}
if (message.isEmpty()) {
return tr("You need to write a message with your request",
"Error while sending friendship request");
}
if (message.length() > static_cast<int>(tox_max_friend_request_length())) {
return tr("Your message is too long!", "Error while sending friendship request");
}
if (hasFriendWithPublicKey(friendId.getPublicKey())) {
return tr("Friend is already added", "Error while sending friendship request");
}
return QString{};
}
void Core::requestFriendship(const ToxId& friendId, const QString& message)
{
QMutexLocker ml{&coreLoopLock};
ToxPk friendPk = friendId.getPublicKey();
QString errorMessage = getFriendRequestErrorMessage(friendId, message);
if (!errorMessage.isNull()) {
emit failedToAddFriend(friendPk, errorMessage);
emit saveRequest();
return;
}
ToxString cMessage(message);
uint32_t friendNumber =
tox_friend_add(tox.get(), friendId.getBytes(), cMessage.data(), cMessage.size(), nullptr);
if (friendNumber == std::numeric_limits<uint32_t>::max()) {
qDebug() << "Failed to request friendship";
emit failedToAddFriend(friendPk);
} else {
qDebug() << "Requested friendship of " << friendNumber;
emit friendAdded(friendNumber, friendPk);
emit requestSent(friendPk, message);
}
emit saveRequest();
}
bool Core::sendMessageWithType(uint32_t friendId, const QString& message, Tox_Message_Type type,
ReceiptNum& receipt)
{
int size = message.toUtf8().size();
auto maxSize = tox_max_message_length();
if (size > maxSize) {
qCritical() << "Core::sendMessageWithType called with message of size:" << size
<< "when max is:" << maxSize << ". Ignoring.";
return false;
}
ToxString cMessage(message);
Tox_Err_Friend_Send_Message error;
receipt = ReceiptNum{tox_friend_send_message(tox.get(), friendId, type, cMessage.data(),
cMessage.size(), &error)};
if (parseFriendSendMessageError(error)) {
return true;
}
return false;
}
bool Core::sendMessage(uint32_t friendId, const QString& message, ReceiptNum& receipt)
{
QMutexLocker ml(&coreLoopLock);
return sendMessageWithType(friendId, message, TOX_MESSAGE_TYPE_NORMAL, receipt);
}
bool Core::sendAction(uint32_t friendId, const QString& action, ReceiptNum& receipt)
{
QMutexLocker ml(&coreLoopLock);
return sendMessageWithType(friendId, action, TOX_MESSAGE_TYPE_ACTION, receipt);
}
void Core::sendTyping(uint32_t friendId, bool typing)
{
QMutexLocker ml{&coreLoopLock};
if (!tox_self_set_typing(tox.get(), friendId, typing, nullptr)) {
emit failedToSetTyping(typing);
}
}
void Core::sendGroupMessageWithType(int groupId, const QString& message, Tox_Message_Type type)
{
QMutexLocker ml{&coreLoopLock};
int size = message.toUtf8().size();
auto maxSize = tox_max_message_length();
if (size > maxSize) {
qCritical() << "Core::sendMessageWithType called with message of size:" << size
<< "when max is:" << maxSize << ". Ignoring.";
return;
}
ToxString cMsg(message);
Tox_Err_Conference_Send_Message error;
bool ok =
tox_conference_send_message(tox.get(), groupId, type, cMsg.data(), cMsg.size(), &error);
if (!ok || !parseConferenceSendMessageError(error)) {
emit groupSentFailed(groupId);
return;
}
}
void Core::sendGroupMessage(int groupId, const QString& message)
{
QMutexLocker ml{&coreLoopLock};
sendGroupMessageWithType(groupId, message, TOX_MESSAGE_TYPE_NORMAL);
}
void Core::sendGroupAction(int groupId, const QString& message)
{
QMutexLocker ml{&coreLoopLock};
sendGroupMessageWithType(groupId, message, TOX_MESSAGE_TYPE_ACTION);
}
void Core::changeGroupTitle(int groupId, const QString& title)
{
QMutexLocker ml{&coreLoopLock};
ToxString cTitle(title);
Tox_Err_Conference_Title error;
bool success = tox_conference_set_title(tox.get(), groupId, cTitle.data(), cTitle.size(), &error);
if (success && error == TOX_ERR_CONFERENCE_TITLE_OK) {
emit groupTitleChanged(groupId, getUsername(), title);
return;
}
qCritical() << "Fail of tox_conference_set_title";
switch (error) {
case TOX_ERR_CONFERENCE_TITLE_CONFERENCE_NOT_FOUND:
qCritical() << "Conference not found";
break;
case TOX_ERR_CONFERENCE_TITLE_FAIL_SEND:
qCritical() << "Conference title failed to send";
break;
case TOX_ERR_CONFERENCE_TITLE_INVALID_LENGTH:
qCritical() << "Invalid length";
break;
default:
break;
}
}
void Core::removeFriend(uint32_t friendId)
{
QMutexLocker ml{&coreLoopLock};
if (!tox_friend_delete(tox.get(), friendId, nullptr)) {
emit failedToRemoveFriend(friendId);
return;
}
emit saveRequest();
emit friendRemoved(friendId);
}
void Core::removeGroup(int groupId)
{
QMutexLocker ml{&coreLoopLock};
Tox_Err_Conference_Delete error;
bool success = tox_conference_delete(tox.get(), groupId, &error);
if (success && error == TOX_ERR_CONFERENCE_DELETE_OK) {
av->leaveGroupCall(groupId);
return;
}
qCritical() << "Fail of tox_conference_delete";
switch (error) {
case TOX_ERR_CONFERENCE_DELETE_CONFERENCE_NOT_FOUND:
qCritical() << "Conference not found";
break;
default:
break;
}
}
/**
* @brief Returns our username, or an empty string on failure
*/
QString Core::getUsername() const
{
QMutexLocker ml{&coreLoopLock};
QString sname;
if (!tox) {
return sname;
}
int size = tox_self_get_name_size(tox.get());
uint8_t* name = new uint8_t[size];
tox_self_get_name(tox.get(), name);
sname = ToxString(name, size).getQString();
delete[] name;
return sname;
}
void Core::setUsername(const QString& username)
{
QMutexLocker ml{&coreLoopLock};
if (username == getUsername()) {
return;
}
ToxString cUsername(username);
if (!tox_self_set_name(tox.get(), cUsername.data(), cUsername.size(), nullptr)) {
emit failedToSetUsername(username);
return;
}
emit usernameSet(username);
emit saveRequest();
}
/**
* @brief Returns our Tox ID
*/
ToxId Core::getSelfId() const
{
QMutexLocker ml{&coreLoopLock};
uint8_t friendId[TOX_ADDRESS_SIZE] = {0x00};
tox_self_get_address(tox.get(), friendId);
return ToxId(friendId, TOX_ADDRESS_SIZE);
}
/**
* @brief Gets self public key
* @return Self PK
*/
ToxPk Core::getSelfPublicKey() const
{
QMutexLocker ml{&coreLoopLock};
uint8_t friendId[TOX_ADDRESS_SIZE] = {0x00};
tox_self_get_address(tox.get(), friendId);
return ToxPk(friendId);
}
/**
* @brief Returns our public and private keys
*/
QPair<QByteArray, QByteArray> Core::getKeypair() const
{
QMutexLocker ml{&coreLoopLock};
QPair<QByteArray, QByteArray> keypair;
assert(tox != nullptr);
QByteArray pk(TOX_PUBLIC_KEY_SIZE, 0x00);
QByteArray sk(TOX_SECRET_KEY_SIZE, 0x00);
tox_self_get_public_key(tox.get(), reinterpret_cast<uint8_t*>(pk.data()));
tox_self_get_secret_key(tox.get(), reinterpret_cast<uint8_t*>(sk.data()));
keypair.first = pk;
keypair.second = sk;
return keypair;
}
/**
* @brief Returns our status message, or an empty string on failure
*/
QString Core::getStatusMessage() const
{
QMutexLocker ml{&coreLoopLock};
assert(tox != nullptr);
size_t size = tox_self_get_status_message_size(tox.get());
if (size == 0) {
return {};
}
uint8_t* name = new uint8_t[size];
tox_self_get_status_message(tox.get(), name);
QString sname = ToxString(name, size).getQString();
delete[] name;
return sname;
}
/**
* @brief Returns our user status
*/
Status::Status Core::getStatus() const
{
QMutexLocker ml{&coreLoopLock};
return static_cast<Status::Status>(tox_self_get_status(tox.get()));
}
void Core::setStatusMessage(const QString& message)
{
QMutexLocker ml{&coreLoopLock};
if (message == getStatusMessage()) {
return;
}
ToxString cMessage(message);
if (!tox_self_set_status_message(tox.get(), cMessage.data(), cMessage.size(), nullptr)) {
emit failedToSetStatusMessage(message);
return;
}
emit saveRequest();
emit statusMessageSet(message);
}
void Core::setStatus(Status::Status status)
{
QMutexLocker ml{&coreLoopLock};
Tox_User_Status userstatus;
switch (status) {
case Status::Status::Online:
userstatus = TOX_USER_STATUS_NONE;
break;
case Status::Status::Away:
userstatus = TOX_USER_STATUS_AWAY;
break;
case Status::Status::Busy:
userstatus = TOX_USER_STATUS_BUSY;
break;
default:
return;
break;
}
tox_self_set_status(tox.get(), userstatus);
emit saveRequest();
emit statusSet(status);
}
/**
* @brief Returns the unencrypted tox save data
*/
QByteArray Core::getToxSaveData()
{
QMutexLocker ml{&coreLoopLock};
uint32_t fileSize = tox_get_savedata_size(tox.get());
QByteArray data;
data.resize(fileSize);
tox_get_savedata(tox.get(), (uint8_t*)data.data());
return data;
}
// Declared to avoid code duplication
#define GET_FRIEND_PROPERTY(property, function, checkSize) \
const size_t property##Size = function##_size(tox.get(), ids[i], nullptr); \
if ((!checkSize || property##Size) && property##Size != SIZE_MAX) { \
uint8_t* prop = new uint8_t[property##Size]; \
if (function(tox.get(), ids[i], prop, nullptr)) { \
QString propStr = ToxString(prop, property##Size).getQString(); \
emit friend##property##Changed(ids[i], propStr); \
} \
\
delete[] prop; \
}
void Core::loadFriends()
{
QMutexLocker ml{&coreLoopLock};
const size_t friendCount = tox_self_get_friend_list_size(tox.get());
if (friendCount == 0) {
return;
}
uint32_t* ids = new uint32_t[friendCount];
tox_self_get_friend_list(tox.get(), ids);
uint8_t friendPk[TOX_PUBLIC_KEY_SIZE] = {0x00};
for (size_t i = 0; i < friendCount; ++i) {
if (!tox_friend_get_public_key(tox.get(), ids[i], friendPk, nullptr)) {
continue;
}
emit friendAdded(ids[i], ToxPk(friendPk));
GET_FRIEND_PROPERTY(Username, tox_friend_get_name, true);
GET_FRIEND_PROPERTY(StatusMessage, tox_friend_get_status_message, false);
checkLastOnline(ids[i]);
}
delete[] ids;
}
void Core::loadGroups()
{
QMutexLocker ml{&coreLoopLock};
const size_t groupCount = tox_conference_get_chatlist_size(tox.get());
if (groupCount == 0) {
return;
}
auto groupNumbers = new uint32_t[groupCount];
tox_conference_get_chatlist(tox.get(), groupNumbers);
for (size_t i = 0; i < groupCount; ++i) {
TOX_ERR_CONFERENCE_TITLE error;
QString name;
const auto groupNumber = groupNumbers[i];
size_t titleSize = tox_conference_get_title_size(tox.get(), groupNumber, &error);
if (LogConferenceTitleError(error)) {
name = tr("Groupchat %1").arg(getGroupPersistentId(groupNumber).toString().left(8));
} else {
QByteArray nameByteArray = QByteArray(static_cast<int>(titleSize), Qt::Uninitialized);
tox_conference_get_title(tox.get(), groupNumber,
reinterpret_cast<uint8_t*>(nameByteArray.data()), &error);
name = ToxString(nameByteArray).getQString();
}
emit emptyGroupCreated(groupNumber, getGroupPersistentId(groupNumber), name);
}
delete[] groupNumbers;
}
void Core::checkLastOnline(uint32_t friendId)
{
QMutexLocker ml{&coreLoopLock};
const uint64_t lastOnline = tox_friend_get_last_online(tox.get(), friendId, nullptr);
if (lastOnline != std::numeric_limits<uint64_t>::max()) {
emit friendLastSeenChanged(friendId, QDateTime::fromTime_t(lastOnline));
}
}
/**
* @brief Returns the list of friendIds in our friendlist, an empty list on error
*/
QVector<uint32_t> Core::getFriendList() const
{
QMutexLocker ml{&coreLoopLock};
QVector<uint32_t> friends;
friends.resize(tox_self_get_friend_list_size(tox.get()));
tox_self_get_friend_list(tox.get(), friends.data());
return friends;
}
/**
* @brief Print in console text of error.
* @param error Error to handle.
* @return True if no error, false otherwise.
*/
bool Core::parsePeerQueryError(Tox_Err_Conference_Peer_Query error) const
{
switch (error) {
case TOX_ERR_CONFERENCE_PEER_QUERY_OK:
return true;
case TOX_ERR_CONFERENCE_PEER_QUERY_CONFERENCE_NOT_FOUND:
qCritical() << "Conference not found";
return false;
case TOX_ERR_CONFERENCE_PEER_QUERY_NO_CONNECTION:
qCritical() << "No connection";
return false;
case TOX_ERR_CONFERENCE_PEER_QUERY_PEER_NOT_FOUND:
qCritical() << "Peer not found";
return false;
default:
qCritical() << "Unknow error code:" << error;
return false;
}
}
GroupId Core::getGroupPersistentId(uint32_t groupNumber) const
{
QMutexLocker ml{&coreLoopLock};
size_t conferenceIdSize = TOX_CONFERENCE_UID_SIZE;
QByteArray groupPersistentId(conferenceIdSize, Qt::Uninitialized);
if (tox_conference_get_id(tox.get(), groupNumber,
reinterpret_cast<uint8_t*>(groupPersistentId.data()))) {
return GroupId{groupPersistentId};
} else {
qCritical() << "Failed to get conference ID of group" << groupNumber;
return {};
}
}
/**
* @brief Get number of peers in the conference.
* @return The number of peers in the conference. UINT32_MAX on failure.
*/
uint32_t Core::getGroupNumberPeers(int groupId) const
{
QMutexLocker ml{&coreLoopLock};
Tox_Err_Conference_Peer_Query error;
uint32_t count = tox_conference_peer_count(tox.get(), groupId, &error);
if (!parsePeerQueryError(error)) {
return std::numeric_limits<uint32_t>::max();
}
return count;
}
/**
* @brief Get the name of a peer of a group
*/
QString Core::getGroupPeerName(int groupId, int peerId) const
{
QMutexLocker ml{&coreLoopLock};
Tox_Err_Conference_Peer_Query error;
size_t length = tox_conference_peer_get_name_size(tox.get(), groupId, peerId, &error);
if (!parsePeerQueryError(error)) {
return QString{};
}
QByteArray name(length, Qt::Uninitialized);
uint8_t* namePtr = reinterpret_cast<uint8_t*>(name.data());
bool success = tox_conference_peer_get_name(tox.get(), groupId, peerId, namePtr, &error);
if (!parsePeerQueryError(error)) {
return QString{};
}
assert(success);
return ToxString(name).getQString();
}
/**
* @brief Get the public key of a peer of a group
*/
ToxPk Core::getGroupPeerPk(int groupId, int peerId) const
{
QMutexLocker ml{&coreLoopLock};
uint8_t friendPk[TOX_PUBLIC_KEY_SIZE] = {0x00};
Tox_Err_Conference_Peer_Query error;
bool success = tox_conference_peer_get_public_key(tox.get(), groupId, peerId, friendPk, &error);
if (!parsePeerQueryError(error)) {
return ToxPk{};
}
assert(success);
return ToxPk(friendPk);
}
/**
* @brief Get the names of the peers of a group
*/
QStringList Core::getGroupPeerNames(int groupId) const
{
QMutexLocker ml{&coreLoopLock};
assert(tox != nullptr);
uint32_t nPeers = getGroupNumberPeers(groupId);
if (nPeers == std::numeric_limits<uint32_t>::max()) {
qWarning() << "getGroupPeerNames: Unable to get number of peers";
return {};
}
QStringList names;
for (uint32_t i = 0; i < nPeers; ++i) {
TOX_ERR_CONFERENCE_PEER_QUERY error;
size_t length = tox_conference_peer_get_name_size(tox.get(), groupId, i, &error);
if (!parsePeerQueryError(error)) {
continue;
}
QByteArray name(length, Qt::Uninitialized);
uint8_t* namePtr = reinterpret_cast<uint8_t*>(name.data());
bool ok = tox_conference_peer_get_name(tox.get(), groupId, i, namePtr, &error);
if (ok && parsePeerQueryError(error)) {
names.append(ToxString(name).getQString());
}
}
return names;
}
/**
* @brief Check, that group has audio or video stream
* @param groupId Id of group to check
* @return True for AV groups, false for text-only groups
*/
bool Core::getGroupAvEnabled(int groupId) const
{
QMutexLocker ml{&coreLoopLock};
TOX_ERR_CONFERENCE_GET_TYPE error;
TOX_CONFERENCE_TYPE type = tox_conference_get_type(tox.get(), groupId, &error);
switch (error) {
case TOX_ERR_CONFERENCE_GET_TYPE_OK:
break;
case TOX_ERR_CONFERENCE_GET_TYPE_CONFERENCE_NOT_FOUND:
qWarning() << "Conference not found";
break;
default:
qWarning() << "Unknown error code:" << QString::number(error);
break;
}
return type == TOX_CONFERENCE_TYPE_AV;
}
/**
* @brief Print in console text of error.
* @param error Error to handle.
* @return True if no error, false otherwise.
*/
bool Core::parseConferenceJoinError(Tox_Err_Conference_Join error) const
{
switch (error) {
case TOX_ERR_CONFERENCE_JOIN_OK:
return true;
case TOX_ERR_CONFERENCE_JOIN_DUPLICATE:
qCritical() << "Conference duplicate";
return false;
case TOX_ERR_CONFERENCE_JOIN_FAIL_SEND:
qCritical() << "Conference join failed to send";
return false;
case TOX_ERR_CONFERENCE_JOIN_FRIEND_NOT_FOUND:
qCritical() << "Friend not found";
return false;
case TOX_ERR_CONFERENCE_JOIN_INIT_FAIL:
qCritical() << "Init fail";
return false;
case TOX_ERR_CONFERENCE_JOIN_INVALID_LENGTH:
qCritical() << "Invalid length";
return false;
case TOX_ERR_CONFERENCE_JOIN_WRONG_TYPE:
qCritical() << "Wrong conference type";
return false;
default:
qCritical() << "Unknow error code:" << error;
return false;
}
}
/**
* @brief Accept a groupchat invite.
* @param inviteInfo Object which contains info about group invitation
*
* @return Conference number on success, UINT32_MAX on failure.
*/
uint32_t Core::joinGroupchat(const GroupInvite& inviteInfo)
{
QMutexLocker ml{&coreLoopLock};
const uint32_t friendId = inviteInfo.getFriendId();
const uint8_t confType = inviteInfo.getType();
const QByteArray invite = inviteInfo.getInvite();
const uint8_t* const cookie = reinterpret_cast<const uint8_t*>(invite.data());
const size_t cookieLength = invite.length();
uint32_t groupNum{std::numeric_limits<uint32_t>::max()};
switch (confType) {
case TOX_CONFERENCE_TYPE_TEXT: {
qDebug() << QString("Trying to join text groupchat invite sent by friend %1").arg(friendId);
Tox_Err_Conference_Join error;
groupNum = tox_conference_join(tox.get(), friendId, cookie, cookieLength, &error);
if (!parseConferenceJoinError(error)) {
groupNum = std::numeric_limits<uint32_t>::max();
}
break;
}
case TOX_CONFERENCE_TYPE_AV: {
qDebug() << QString("Trying to join AV groupchat invite sent by friend %1").arg(friendId);
groupNum = toxav_join_av_groupchat(tox.get(), friendId, cookie, cookieLength,
CoreAV::groupCallCallback, const_cast<Core*>(this));
break;
}
default:
qWarning() << "joinGroupchat: Unknown groupchat type " << confType;
}
if (groupNum != std::numeric_limits<uint32_t>::max()) {
emit groupJoined(groupNum, getGroupPersistentId(groupNum));
}
return groupNum;
}
void Core::groupInviteFriend(uint32_t friendId, int groupId)
{
QMutexLocker ml{&coreLoopLock};
Tox_Err_Conference_Invite error;
tox_conference_invite(tox.get(), friendId, groupId, &error);
switch (error) {
case TOX_ERR_CONFERENCE_INVITE_OK:
break;
case TOX_ERR_CONFERENCE_INVITE_CONFERENCE_NOT_FOUND:
qCritical() << "Conference not found";
break;
case TOX_ERR_CONFERENCE_INVITE_FAIL_SEND:
qCritical() << "Conference invite failed to send";
break;
default:
break;
}
}
int Core::createGroup(uint8_t type)
{
QMutexLocker ml{&coreLoopLock};
if (type == TOX_CONFERENCE_TYPE_TEXT) {
Tox_Err_Conference_New error;
uint32_t groupId = tox_conference_new(tox.get(), &error);
switch (error) {
case TOX_ERR_CONFERENCE_NEW_OK:
emit emptyGroupCreated(groupId, getGroupPersistentId(groupId));
return groupId;
case TOX_ERR_CONFERENCE_NEW_INIT:
qCritical() << "The conference instance failed to initialize";
return std::numeric_limits<uint32_t>::max();
default:
return std::numeric_limits<uint32_t>::max();
}
} else if (type == TOX_CONFERENCE_TYPE_AV) {
uint32_t groupId = toxav_add_av_groupchat(tox.get(), CoreAV::groupCallCallback, this);
emit emptyGroupCreated(groupId, getGroupPersistentId(groupId));
return groupId;
} else {
qWarning() << "createGroup: Unknown type " << type;
return -1;
}
}
/**
* @brief Checks if a friend is online. Unknown friends are considered offline.
*/
bool Core::isFriendOnline(uint32_t friendId) const
{
QMutexLocker ml{&coreLoopLock};
Tox_Connection connection = tox_friend_get_connection_status(tox.get(), friendId, nullptr);
return connection != TOX_CONNECTION_NONE;
}
/**
* @brief Checks if we have a friend by public key
*/
bool Core::hasFriendWithPublicKey(const ToxPk& publicKey) const
{
QMutexLocker ml{&coreLoopLock};
if (publicKey.isEmpty()) {
return false;
}
// TODO: error handling
uint32_t friendId = tox_friend_by_public_key(tox.get(), publicKey.getData(), nullptr);
return friendId != std::numeric_limits<uint32_t>::max();
}
/**
* @brief Get the public key part of the ToxID only
*/
ToxPk Core::getFriendPublicKey(uint32_t friendNumber) const
{
QMutexLocker ml{&coreLoopLock};
uint8_t rawid[TOX_PUBLIC_KEY_SIZE];
if (!tox_friend_get_public_key(tox.get(), friendNumber, rawid, nullptr)) {
qWarning() << "getFriendPublicKey: Getting public key failed";
return ToxPk();
}
return ToxPk(rawid);
}
/**
* @brief Get the username of a friend
*/
QString Core::getFriendUsername(uint32_t friendnumber) const
{
QMutexLocker ml{&coreLoopLock};
size_t namesize = tox_friend_get_name_size(tox.get(), friendnumber, nullptr);
if (namesize == SIZE_MAX) {
qWarning() << "getFriendUsername: Failed to get name size for friend " << friendnumber;
return QString();
}
uint8_t* name = new uint8_t[namesize];
tox_friend_get_name(tox.get(), friendnumber, name, nullptr);
ToxString sname(name, namesize);
delete[] name;
return sname.getQString();
}
QStringList Core::splitMessage(const QString& message)
{
QStringList splittedMsgs;
QByteArray ba_message{message.toUtf8()};
const auto maxLen = tox_max_message_length();
while (ba_message.size() > maxLen) {
int splitPos = ba_message.lastIndexOf('\n', maxLen - 1);
if (splitPos <= 0) {
splitPos = ba_message.lastIndexOf(' ', maxLen - 1);
}
if (splitPos <= 0) {
constexpr uint8_t firstOfMultiByteMask = 0xC0;
constexpr uint8_t multiByteMask = 0x80;
splitPos = maxLen;
// don't split a utf8 character
if ((ba_message[splitPos] & multiByteMask) == multiByteMask) {
while ((ba_message[splitPos] & firstOfMultiByteMask) != firstOfMultiByteMask) {
--splitPos;
}
}
--splitPos;
}
splittedMsgs.append(QString{ba_message.left(splitPos + 1)});
ba_message = ba_message.mid(splitPos + 1);
}
splittedMsgs.append(QString{ba_message});
return splittedMsgs;
}
QString Core::getPeerName(const ToxPk& id) const
{
QMutexLocker ml{&coreLoopLock};
QString name;
uint32_t friendId = tox_friend_by_public_key(tox.get(), id.getData(), nullptr);
if (friendId == std::numeric_limits<uint32_t>::max()) {
qWarning() << "getPeerName: No such peer";
return name;
}
const size_t nameSize = tox_friend_get_name_size(tox.get(), friendId, nullptr);
if (nameSize == SIZE_MAX) {
return name;
}
uint8_t* cname = new uint8_t[nameSize < tox_max_name_length() ? tox_max_name_length() : nameSize];
if (!tox_friend_get_name(tox.get(), friendId, cname, nullptr)) {
qWarning() << "getPeerName: Can't get name of friend " + QString().setNum(friendId);
delete[] cname;
return name;
}
name = ToxString(cname, nameSize).getQString();
delete[] cname;
return name;
}
/**
* @brief Sets the NoSpam value to prevent friend request spam
* @param nospam an arbitrary which becomes part of the Tox ID
*/
void Core::setNospam(uint32_t nospam)
{
QMutexLocker ml{&coreLoopLock};
tox_self_set_nospam(tox.get(), nospam);
emit idSet(getSelfId());
}
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