/***************************************************************************
- * Copyright (C) 2005-2018 by the Quassel Project *
+ * Copyright (C) 2005-2020 by the Quassel Project *
* devel@quassel-irc.org *
* *
* This program is free software; you can redistribute it and/or modify *
#include "coreauthhandler.h"
-#ifdef HAVE_SSL
-# include <QSslSocket>
-#endif
+#include <QtEndian>
-#include "core.h"
-#include "logger.h"
+#include <QSslSocket>
-using namespace Protocol;
+#include "core.h"
-CoreAuthHandler::CoreAuthHandler(QTcpSocket *socket, QObject *parent)
- : AuthHandler(parent),
- _peer(0),
- _magicReceived(false),
- _legacy(false),
- _clientRegistered(false),
- _connectionFeatures(0)
+CoreAuthHandler::CoreAuthHandler(QSslSocket* socket, QObject* parent)
+ : AuthHandler(parent)
+ , _peer(nullptr)
+ , _metricsServer(Core::instance()->metricsServer())
+ , _proxyReceived(false)
+ , _proxyLine({})
+ , _useProxyLine(false)
+ , _magicReceived(false)
+ , _legacy(false)
+ , _clientRegistered(false)
+ , _connectionFeatures(0)
{
setSocket(socket);
- connect(socket, SIGNAL(readyRead()), SLOT(onReadyRead()));
+ connect(socket, &QIODevice::readyRead, this, &CoreAuthHandler::onReadyRead);
// TODO: Timeout for the handshake phase
-
}
-
void CoreAuthHandler::onReadyRead()
{
- if (socket()->bytesAvailable() < 4)
- return;
-
// once we have selected a peer, we certainly don't want to read more data!
if (_peer)
return;
+ if (!_proxyReceived) {
+ quint32 magic;
+ socket()->peek((char*) &magic, 4);
+ magic = qFromBigEndian<quint32>(magic);
+
+ if (magic == Protocol::proxyMagic) {
+ if (!socket()->canReadLine()) {
+ return;
+ }
+ QByteArray line = socket()->readLine(108);
+ _proxyLine = ProxyLine::parseProxyLine(line);
+ if (_proxyLine.protocol != QAbstractSocket::UnknownNetworkLayerProtocol) {
+ QList<QString> subnets = Quassel::optionValue("proxy-cidr").split(",");
+ for (const QString& subnet : subnets) {
+ if (socket()->peerAddress().isInSubnet(QHostAddress::parseSubnet(subnet))) {
+ _useProxyLine = true;
+ break;
+ }
+ }
+ }
+ }
+ _proxyReceived = true;
+ }
+
+ if (socket()->bytesAvailable() < 4)
+ return;
+
if (!_magicReceived) {
quint32 magic;
socket()->peek((char*)&magic, 4);
// no magic, assume legacy protocol
qDebug() << "Legacy client detected, switching to compatibility mode";
_legacy = true;
- RemotePeer *peer = PeerFactory::createPeer(PeerFactory::ProtoDescriptor(Protocol::LegacyProtocol, 0), this, socket(), Compressor::NoCompression, this);
- connect(peer, SIGNAL(protocolVersionMismatch(int,int)), SLOT(onProtocolVersionMismatch(int,int)));
+ RemotePeer* peer = PeerFactory::createPeer(PeerFactory::ProtoDescriptor(Protocol::LegacyProtocol, 0),
+ this,
+ socket(),
+ Compressor::NoCompression,
+ this);
+ connect(peer, &RemotePeer::protocolVersionMismatch, this, &CoreAuthHandler::onProtocolVersionMismatch);
setPeer(peer);
return;
}
if (features & Protocol::Compression)
_connectionFeatures |= Protocol::Compression;
- socket()->read((char*)&magic, 4); // read the 4 bytes we've just peeked at
+ socket()->read((char*)&magic, 4); // read the 4 bytes we've just peeked at
}
// read the list of protocols supported by the client
- while (socket()->bytesAvailable() >= 4 && _supportedProtos.size() < 16) { // sanity check
+ while (socket()->bytesAvailable() >= 4 && _supportedProtos.size() < 16) { // sanity check
quint32 data;
socket()->read((char*)&data, 4);
data = qFromBigEndian<quint32>(data);
-
Protocol::Type type = static_cast<Protocol::Type>(data & 0xff);
- quint16 protoFeatures = static_cast<quint16>(data>>8 & 0xffff);
+
auto type = static_cast<Protocol::Type>(data & 0xff);
+ auto protoFeatures = static_cast<quint16>(data >> 8 & 0xffff);
_supportedProtos.append(PeerFactory::ProtoDescriptor(type, protoFeatures));
- if (data >= 0x80000000) { // last protocol
+ if (data >= 0x80000000) { // last protocol
Compressor::CompressionLevel level;
if (_connectionFeatures & Protocol::Compression)
level = Compressor::BestCompression;
else
level = Compressor::NoCompression;
- RemotePeer *peer = PeerFactory::createPeer(_supportedProtos, this, socket(), level, this);
+ RemotePeer* peer = PeerFactory::createPeer(_supportedProtos, this, socket(), level, this);
if (!peer) {
- qWarning() << "Received invalid handshake data from client" << socket()->peerAddress().toString();
+ qWarning() << "Received invalid handshake data from client" << hostAddress().toString();
close();
return;
}
if (peer->protocol() == Protocol::LegacyProtocol) {
_legacy = true;
- connect(peer, SIGNAL(protocolVersionMismatch(int,int)), SLOT(onProtocolVersionMismatch(int,int)));
+ connect(peer, &RemotePeer::protocolVersionMismatch, this, &CoreAuthHandler::onProtocolVersionMismatch);
}
setPeer(peer);
// inform the client
- quint32 reply = peer->protocol() | peer->enabledFeatures()<<8 | _connectionFeatures<<24;
+ quint32 reply = peer->protocol() | peer->enabledFeatures() << 8 | _connectionFeatures << 24;
reply = qToBigEndian<quint32>(reply);
socket()->write((char*)&reply, 4);
socket()->flush();
if (!_legacy && (_connectionFeatures & Protocol::Encryption))
- startSsl(); // legacy peer enables it later
+ startSsl(); // legacy peer enables it later
return;
}
}
}
-
-void CoreAuthHandler::setPeer(RemotePeer *peer)
+void CoreAuthHandler::setPeer(RemotePeer* peer)
{
qDebug().nospace() << "Using " << qPrintable(peer->protocolName()) << "...";
_peer = peer;
- disconnect(socket(), SIGNAL(readyRead()), this, SLOT(onReadyRead()));
+ if (_proxyLine.protocol != QAbstractSocket::UnknownNetworkLayerProtocol) {
+ _peer->setProxyLine(_proxyLine);
+ }
+ disconnect(socket(), &QIODevice::readyRead, this, &CoreAuthHandler::onReadyRead);
}
// only in compat mode
qWarning() << qPrintable(tr("Client")) << _peer->description() << qPrintable(tr("too old, rejecting."));
QString errorString = tr("<b>Your Quassel Client is too old!</b><br>"
"This core needs at least client/core protocol version %1 (got: %2).<br>"
- "Please consider upgrading your client.").arg(expected, actual);
- _peer->dispatch(ClientDenied(errorString));
+ "Please consider upgrading your client.")
+ .arg(expected, actual);
+ _peer->dispatch(Protocol::ClientDenied(errorString));
_peer->close();
}
-
bool CoreAuthHandler::checkClientRegistered()
{
if (!_clientRegistered) {
- qWarning() << qPrintable(tr("Client")) << qPrintable(socket()->peerAddress().toString()) << qPrintable(tr("did not send a registration message before trying to login, rejecting."));
- _peer->dispatch(ClientDenied(tr("<b>Client not initialized!</b><br>You need to send a registration message before trying to login.")));
+ qWarning() << qPrintable(tr("Client")) << qPrintable(hostAddress().toString())
+ << qPrintable(tr("did not send a registration message before trying to login, rejecting."));
+ _peer->dispatch(
+ Protocol::ClientDenied(tr("<b>Client not initialized!</b><br>You need to send a registration message before trying to login.")));
_peer->close();
return false;
}
return true;
}
-
-void CoreAuthHandler::handle(const RegisterClient &msg)
+void CoreAuthHandler::handle(const Protocol::RegisterClient& msg)
{
bool useSsl;
if (_legacy)
useSsl = _connectionFeatures & Protocol::Encryption;
if (Quassel::isOptionSet("require-ssl") && !useSsl && !_peer->isLocal()) {
- quInfo() << qPrintable(tr("SSL required but non-SSL connection attempt from %1").arg(socket()->peerAddress().toString()));
- _peer->dispatch(ClientDenied(tr("<b>SSL is required!</b><br>You need to use SSL in order to connect to this core.")));
+ qInfo() << qPrintable(tr("SSL required but non-SSL connection attempt from %1").arg(hostAddress().toString()));
+ _peer->dispatch(Protocol::ClientDenied(tr("<b>SSL is required!</b><br>You need to use SSL in order to connect to this core.")));
_peer->close();
return;
}
}
}
- _peer->dispatch(ClientRegistered(Quassel::Features{}, configured, backends, authenticators, useSsl));
+ _peer->dispatch(Protocol::ClientRegistered(Quassel::Features{}, configured, backends, authenticators, useSsl));
// useSsl is only used for the legacy protocol
if (_legacy && useSsl)
_clientRegistered = true;
}
-
-void CoreAuthHandler::handle(const SetupData &msg)
+void CoreAuthHandler::handle(const Protocol::SetupData& msg)
{
if (!checkClientRegistered())
return;
// The default parameter to authenticator is Database.
// Maybe this should be hardcoded elsewhere, i.e. as a define.
QString authenticator = msg.authenticator;
- quInfo() << "[" << authenticator << "]";
+ qInfo() << "[" << authenticator << "]";
if (authenticator.trimmed().isEmpty()) {
authenticator = QString("Database");
}
QString result = Core::setup(msg.adminUser, msg.adminPassword, msg.backend, msg.setupData, authenticator, msg.authSetupData);
if (!result.isEmpty())
- _peer->dispatch(SetupFailed(result));
+ _peer->dispatch(Protocol::SetupFailed(result));
else
- _peer->dispatch(SetupDone());
+ _peer->dispatch(Protocol::SetupDone());
}
-
-void CoreAuthHandler::handle(const Login &msg)
+void CoreAuthHandler::handle(const Protocol::Login& msg)
{
if (!checkClientRegistered())
return;
if (!Core::isConfigured()) {
- qWarning() << qPrintable(tr("Client")) << qPrintable(socket()->peerAddress().toString()) << qPrintable(tr("attempted to login before the core was configured, rejecting."));
- _peer->dispatch(ClientDenied(tr("<b>Attempted to login before core was configured!</b><br>The core must be configured before attempting to login.")));
+ qWarning() << qPrintable(tr("Client")) << qPrintable(hostAddress().toString())
+ << qPrintable(tr("attempted to login before the core was configured, rejecting."));
+ _peer->dispatch(Protocol::ClientDenied(
+ tr("<b>Attempted to login before core was configured!</b><br>The core must be configured before attempting to login.")));
return;
}
// First attempt local auth using the real username and password.
// If that fails, move onto the auth provider.
- UserId uid = Core::validateUser(msg.user, msg.password);
+
+ // Check to see if the user has the "Database" authenticator configured.
+ UserId uid = 0;
+ if (Core::getUserAuthenticator(msg.user) == "Database") {
+ uid = Core::validateUser(msg.user, msg.password);
+ }
+
+ // If they did not, *or* if the database login fails, try to use a different authenticator.
+ // TODO: this logic should likely be moved into Core::authenticateUser in the future.
+ // Right now a core can only have one authenticator configured; this might be something
+ // to change in the future.
if (uid == 0) {
uid = Core::authenticateUser(msg.user, msg.password);
}
if (uid == 0) {
- quInfo() << qPrintable(tr("Invalid login attempt from %1 as \"%2\"").arg(socket()->peerAddress().toString(), msg.user));
- _peer->dispatch(LoginFailed(tr("<b>Invalid username or password!</b><br>The username/password combination you supplied could not be found in the database.")));
+ qInfo() << qPrintable(tr("Invalid login attempt from %1 as \"%2\"").arg(hostAddress().toString(), msg.user));
+ _peer->dispatch(Protocol::LoginFailed(tr(
+ "<b>Invalid username or password!</b><br>The username/password combination you supplied could not be found in the database.")));
+ if (_metricsServer) {
+ _metricsServer->addLoginAttempt(msg.user, false);
+ }
return;
}
- _peer->dispatch(LoginSuccess());
+ _peer->dispatch(Protocol::LoginSuccess());
+ if (_metricsServer) {
+ _metricsServer->addLoginAttempt(uid, true);
+ }
- quInfo() << qPrintable(tr("Client %1 initialized and authenticated successfully as \"%2\" (UserId: %3).").arg(socket()->peerAddress().toString(), msg.user, QString::number(uid.toInt())));
+ qInfo() << qPrintable(tr("Client %1 initialized and authenticated successfully as \"%2\" (UserId: %3).")
+ .arg(_peer->address(), msg.user, QString::number(uid.toInt())));
- const auto &clientFeatures = _peer->features();
+ const auto& clientFeatures = _peer->features();
auto unsupported = clientFeatures.toStringList(false);
if (!unsupported.isEmpty()) {
if (unsupported.contains("NoFeatures"))
- quInfo() << qPrintable(tr("Client does not support extended features."));
+ qInfo() << qPrintable(tr("Client does not support extended features."));
else
- quInfo() << qPrintable(tr("Client does not support the following features: %1").arg(unsupported.join(", ")));
+ qInfo() << qPrintable(tr("Client does not support the following features: %1").arg(unsupported.join(", ")));
}
if (!clientFeatures.unknownFeatures().isEmpty()) {
- quInfo() << qPrintable(tr("Client supports unknown features: %1").arg(clientFeatures.unknownFeatures().join(", ")));
+ qInfo() << qPrintable(tr("Client supports unknown features: %1").arg(clientFeatures.unknownFeatures().join(", ")));
}
- disconnect(socket(), 0, this, 0);
- disconnect(_peer, 0, this, 0);
- _peer->setParent(0); // Core needs to take care of this one now!
+ disconnect(socket(), nullptr, this, nullptr);
+ disconnect(_peer, nullptr, this, nullptr);
+ _peer->setParent(nullptr); // Core needs to take care of this one now!
- socket()->flush(); // Make sure all data is sent before handing over the peer (and socket) to the session thread (bug 682)
+ socket()->flush(); // Make sure all data is sent before handing over the peer (and socket) to the session thread (bug 682)
emit handshakeComplete(_peer, uid);
}
+QHostAddress CoreAuthHandler::hostAddress() const
+{
+ if (_useProxyLine) {
+ return _proxyLine.sourceHost;
+ }
+ else if (socket()) {
+ return socket()->peerAddress();
+ }
+
+ return {};
+}
+
+bool CoreAuthHandler::isLocal() const
+{
+ return hostAddress() == QHostAddress::LocalHost ||
+ hostAddress() == QHostAddress::LocalHostIPv6;
+}
/*** SSL Stuff ***/
void CoreAuthHandler::startSsl()
{
- #ifdef HAVE_SSL
- QSslSocket *sslSocket = qobject_cast<QSslSocket *>(socket());
- Q_ASSERT(sslSocket);
-
- qDebug() << qPrintable(tr("Starting encryption for Client:")) << _peer->description();
- connect(sslSocket, SIGNAL(sslErrors(const QList<QSslError> &)), SLOT(onSslErrors()));
- sslSocket->flush(); // ensure that the write cache is flushed before we switch to ssl (bug 682)
- sslSocket->startServerEncryption();
- #endif /* HAVE_SSL */
+ qDebug() << qPrintable(tr("Starting encryption for Client:")) << _peer->description();
+ connect(socket(), selectOverload<const QList<QSslError>&>(&QSslSocket::sslErrors), this, &CoreAuthHandler::onSslErrors);
+ socket()->flush(); // ensure that the write cache is flushed before we switch to ssl (bug 682)
+ socket()->startServerEncryption();
}
-
-#ifdef HAVE_SSL
void CoreAuthHandler::onSslErrors()
{
- QSslSocket *sslSocket = qobject_cast<QSslSocket *>(socket());
- Q_ASSERT(sslSocket);
- sslSocket->ignoreSslErrors();
+ socket()->ignoreSslErrors();
}
-#endif
-
projects / quassel.git / blobdiff