/***************************************************************************
- * Copyright (C) 2005-2013 by the Quassel Project *
+ * Copyright (C) 2005-2015 by the Quassel Project *
* devel@quassel-irc.org *
* *
* This program is free software; you can redistribute it and/or modify *
#include "coreirclisthelper.h"
#include "corenetwork.h"
#include "coresession.h"
+#include "coretransfer.h"
+#include "coretransfermanager.h"
#include "ctcpevent.h"
#include "ircevent.h"
#include "ircuser.h"
+#include "logger.h"
#include "messageevent.h"
#include "netsplit.h"
#include "quassel.h"
+#ifdef HAVE_QCA2
+# include "keyevent.h"
+#endif
+
CoreSessionEventProcessor::CoreSessionEventProcessor(CoreSession *session)
: BasicHandler("handleCtcp", session),
_coreSession(session)
void CoreSessionEventProcessor::processIrcEventNumeric(IrcEventNumeric *e)
{
switch (e->number()) {
- // CAP stuff
- case 903:
- case 904:
- case 905:
- case 906:
- case 907:
- qobject_cast<CoreNetwork *>(e->network())->putRawLine("CAP END");
+ // SASL authentication replies
+ // See: http://ircv3.net/specs/extensions/sasl-3.1.html
+ // TODO Handle errors to stop connection if appropriate
+ case 903: // RPL_SASLSUCCESS
+ case 904: // ERR_SASLFAIL
+ case 905: // ERR_SASLTOOLONG
+ case 906: // ERR_SASLABORTED
+ case 907: // ERR_SASLALREADY
+ // Move on to the next capability
+ sendNextCap(e->network());
break;
default:
construct.append(net->saslAccount());
construct.append(QChar(QChar::Null));
construct.append(net->saslPassword());
- QByteArray saslData = QByteArray(construct.toAscii().toBase64());
+ QByteArray saslData = QByteArray(construct.toLatin1().toBase64());
saslData.prepend("AUTHENTICATE ");
net->putRawLine(saslData);
#ifdef HAVE_SSL
#endif
}
+void CoreSessionEventProcessor::sendNextCap(Network *net)
+{
+ CoreNetwork *coreNet = qobject_cast<CoreNetwork *>(net);
+ if (coreNet->capNegotiationInProgress()) {
+ // Request the next capability and remove it from the list
+ // Handle one at a time so one capability failing won't NAK all of 'em
+ coreNet->putRawLine(coreNet->serverEncode(QString("CAP REQ :%1").arg(coreNet->takeQueuedCap())));
+ } else {
+ // If SASL requested but not available, print a warning
+ if (coreNet->networkInfo().useSasl && !coreNet->useCapSASL())
+ emit newEvent(new MessageEvent(Message::Error, net, tr("SASL authentication not supported by server, continuing without"), QString(), QString(), Message::None, QDateTime::currentDateTimeUtc()));
+
+ // No pending desired capabilities, end negotiation
+ coreNet->putRawLine(coreNet->serverEncode(QString("CAP END")));
+ emit newEvent(new MessageEvent(Message::Server, net, tr("Capability negotiation finished"), QString(), QString(), Message::None, QDateTime::currentDateTimeUtc()));
+ }
+}
void CoreSessionEventProcessor::processIrcEventCap(IrcEvent *e)
{
- // for SASL, there will only be a single param of 'sasl', however you can check here for
- // additional CAP messages (ls, multi-prefix, et cetera).
-
- if (e->params().count() == 3) {
- if (e->params().at(2).startsWith("sasl")) { // Freenode (at least) sends "sasl " with a trailing space for some reason!
- // FIXME use event
- // if the current identity has a cert set, use SASL EXTERNAL
-#ifdef HAVE_SSL
- if (!coreNetwork(e)->identityPtr()->sslCert().isNull()) {
- coreNetwork(e)->putRawLine(coreNetwork(e)->serverEncode("AUTHENTICATE EXTERNAL"));
+ // Handle capability negotiation
+ // See: http://ircv3.net/specs/core/capability-negotiation-3.2.html
+ // And: http://ircv3.net/specs/core/capability-negotiation-3.1.html
+ if (e->params().count() >= 3) {
+ CoreNetwork *coreNet = coreNetwork(e);
+ if (e->params().at(1).compare("LS", Qt::CaseInsensitive) == 0) {
+ // Server: CAP * LS * :multi-prefix extended-join account-notify batch invite-notify tls
+ // Server: CAP * LS * :cap-notify server-time example.org/dummy-cap=dummyvalue example.org/second-dummy-cap
+ // Server: CAP * LS :userhost-in-names sasl=EXTERNAL,DH-AES,DH-BLOWFISH,ECDSA-NIST256P-CHALLENGE,PLAIN
+ bool capListFinished;
+ QStringList availableCaps;
+ if (e->params().count() == 4) {
+ // Middle of multi-line reply, ignore the asterisk
+ capListFinished = false;
+ availableCaps = e->params().at(3).split(' ');
} else {
+ // Single line reply
+ capListFinished = true;
+ availableCaps = e->params().at(2).split(' ');
+ }
+ // We know what capabilities are available, request what we want.
+ QStringList availableCapPair;
+ bool queueCurrentCap;
+ for (int i = 0; i < availableCaps.count(); ++i) {
+ // Capability may include values, e.g. CAP * LS :multi-prefix sasl=EXTERNAL
+ availableCapPair = availableCaps[i].trimmed().split('=');
+ queueCurrentCap = false;
+ if (availableCapPair.at(0).startsWith("sasl")) {
+ // Only request SASL if it's enabled
+ if (coreNet->networkInfo().useSasl)
+ queueCurrentCap = true;
+ } else if (availableCapPair.at(0).startsWith("away-notify")) {
+ // Always request these capabilities if available
+ queueCurrentCap = true;
+ }
+ if (queueCurrentCap) {
+ if(availableCapPair.count() >= 2)
+ coreNet->queuePendingCap(availableCapPair.at(0).trimmed(), availableCapPair.at(1).trimmed());
+ else
+ coreNet->queuePendingCap(availableCapPair.at(0).trimmed());
+ }
+ }
+ // Begin capability requests when capability listing complete
+ if (capListFinished) {
+ emit newEvent(new MessageEvent(Message::Server, e->network(), tr("Negotiating capabilities..."), QString(), QString(), Message::None, e->timestamp()));
+ sendNextCap(coreNet);
+ }
+ } else if (e->params().at(1).compare("ACK", Qt::CaseInsensitive) == 0) {
+ // Server: CAP * ACK :multi-prefix sasl
+ // Got the capability we want, enable, handle as needed.
+ // As only one capability is requested at a time, no need to split
+ // Lower-case the list to make later comparisons easier
+ // Capability may include values, e.g. CAP * LS :multi-prefix sasl=EXTERNAL
+ QStringList acceptedCap = e->params().at(2).trimmed().split('=');
+
+ // Mark this cap as accepted
+ if(acceptedCap.count() >= 2)
+ coreNet->addCap(acceptedCap.at(0), acceptedCap.at(1));
+ else
+ coreNet->addCap(acceptedCap.at(0));
+
+ // Handle special cases
+ if (acceptedCap.at(0).startsWith("sasl")) {
+ // Freenode (at least) sends "sasl " with a trailing space for some reason!
+ // if the current identity has a cert set, use SASL EXTERNAL
+ // FIXME use event
+ // TODO If value of sasl capability is not empty, limit to accepted
+#ifdef HAVE_SSL
+ if (!coreNet->identityPtr()->sslCert().isNull()) {
+ coreNet->putRawLine(coreNet->serverEncode("AUTHENTICATE EXTERNAL"));
+ } else {
#endif
- // Only working with PLAIN atm, blowfish later
- coreNetwork(e)->putRawLine(coreNetwork(e)->serverEncode("AUTHENTICATE PLAIN"));
+ // Only working with PLAIN atm, blowfish later
+ coreNet->putRawLine(coreNet->serverEncode("AUTHENTICATE PLAIN"));
#ifdef HAVE_SSL
- }
+ }
#endif
+ } else {
+ // Special handling not needed, move on to next cap
+ sendNextCap(coreNet);
+ }
+ } else if (e->params().at(1).compare("NAK", Qt::CaseInsensitive) == 0) {
+ // Something went wrong with this capability, disable, go to next cap
+ // As only one capability is requested at a time, no need to split
+ // Lower-case the list to make later comparisons easier
+ QString deniedCap = e->params().at(2).trimmed();
+ coreNet->removeCap(deniedCap);
+ sendNextCap(coreNet);
}
}
}
+/* IRCv3 away-notify - ":nick!user@host AWAY [:message]" */
+void CoreSessionEventProcessor::processIrcEventAway(IrcEvent *e)
+{
+ if (!checkParamCount(e, 2))
+ return;
+
+ // Nick is sent as part of parameters in order to split user/server decoding
+ IrcUser *ircuser = e->network()->ircUser(e->params().at(0));
+ if (ircuser) {
+ if (!e->params().at(1).isEmpty()) {
+ ircuser->setAway(true);
+ ircuser->setAwayMessage(e->params().at(1));
+ } else {
+ ircuser->setAway(false);
+ }
+ } else {
+ qDebug() << "Received away-notify data for unknown user" << e->params().at(0);
+ }
+}
+
void CoreSessionEventProcessor::processIrcEventInvite(IrcEvent *e)
{
if (checkParamCount(e, 2)) {
break;
}
+ // If using away-notify, check new users. Works around buggy IRC servers
+ // forgetting to send :away messages for users who join channels when away.
+ if (coreNetwork(e)->useCapAwayNotify()) {
+ coreNetwork(e)->queueAutoWhoOneshot(ircuser->nick());
+ }
+
if (!handledByNetsplit)
ircuser->joinChannel(channel);
else
}
-/* RPL_WELCOME */
-void CoreSessionEventProcessor::processIrcEvent001(IrcEvent *e)
+#ifdef HAVE_QCA2
+void CoreSessionEventProcessor::processKeyEvent(KeyEvent *e)
{
- if (!checkParamCount(e, 1))
+ if (!Cipher::neededFeaturesAvailable()) {
+ emit newEvent(new MessageEvent(Message::Error, e->network(), tr("Unable to perform key exchange, missing qca-ossl plugin."), e->prefix(), e->target(), Message::None, e->timestamp()));
+ return;
+ }
+ CoreNetwork *net = qobject_cast<CoreNetwork*>(e->network());
+ Cipher *c = net->cipher(e->target());
+ if (!c) // happens when there is no CoreIrcChannel for the target (i.e. never?)
return;
- QString myhostmask = e->params().at(0).section(' ', -1, -1);
+ if (e->exchangeType() == KeyEvent::Init) {
+ QByteArray pubKey = c->parseInitKeyX(e->key());
+ if (pubKey.isEmpty()) {
+ emit newEvent(new MessageEvent(Message::Error, e->network(), tr("Unable to parse the DH1080_INIT. Key exchange failed."), e->prefix(), e->target(), Message::None, e->timestamp()));
+ return;
+ } else {
+ net->setCipherKey(e->target(), c->key());
+ emit newEvent(new MessageEvent(Message::Info, e->network(), tr("Your key is set and messages will be encrypted."), e->prefix(), e->target(), Message::None, e->timestamp()));
+ QList<QByteArray> p;
+ p << net->serverEncode(e->target()) << net->serverEncode("DH1080_FINISH ")+pubKey;
+ net->putCmd("NOTICE", p);
+ }
+ } else {
+ if (c->parseFinishKeyX(e->key())) {
+ net->setCipherKey(e->target(), c->key());
+ emit newEvent(new MessageEvent(Message::Info, e->network(), tr("Your key is set and messages will be encrypted."), e->prefix(), e->target(), Message::None, e->timestamp()));
+ } else {
+ emit newEvent(new MessageEvent(Message::Info, e->network(), tr("Failed to parse DH1080_FINISH. Key exchange failed."), e->prefix(), e->target(), Message::None, e->timestamp()));
+ }
+ }
+}
+#endif
+
+
+/* RPL_WELCOME */
+void CoreSessionEventProcessor::processIrcEvent001(IrcEventNumeric *e)
+{
e->network()->setCurrentServer(e->prefix());
- e->network()->setMyNick(nickFromMask(myhostmask));
+ e->network()->setMyNick(e->target());
}
ircuser->setRealName(e->params().last().section(" ", 1));
}
- if (coreNetwork(e)->isAutoWhoInProgress(channel))
+ // Check if channel name has a who in progress.
+ // If not, then check if user nick exists and has a who in progress.
+ if (coreNetwork(e)->isAutoWhoInProgress(channel) ||
+ (ircuser && coreNetwork(e)->isAutoWhoInProgress(ircuser->nick()))) {
e->setFlag(EventManager::Silent);
+ }
}
QStringList nicks;
QStringList modes;
- foreach(QString nick, e->params()[2].split(' ')) {
+ foreach(QString nick, e->params()[2].split(' ', QString::SkipEmptyParts)) {
QString mode;
if (e->network()->prefixes().contains(nick[0])) {
}
+// http://www.irchelp.org/irchelp/rfc/ctcpspec.html
+// http://en.wikipedia.org/wiki/Direct_Client-to-Client
+void CoreSessionEventProcessor::handleCtcpDcc(CtcpEvent *e)
+{
+ // DCC support is unfinished, experimental and potentially dangerous, so make it opt-in
+ if (!Quassel::isOptionSet("enable-experimental-dcc")) {
+ quInfo() << "DCC disabled, start core with --enable-experimental-dcc if you really want to try it out";
+ return;
+ }
+
+ // normal: SEND <filename> <ip> <port> [<filesize>]
+ // reverse: SEND <filename> <ip> 0 <filesize> <token>
+ QStringList params = e->param().split(' ');
+ if (params.count()) {
+ QString cmd = params[0].toUpper();
+ if (cmd == "SEND") {
+ if (params.count() < 4) {
+ qWarning() << "Invalid DCC SEND request:" << e; // TODO emit proper error to client
+ return;
+ }
+ QString filename = params[1];
+ QHostAddress address;
+ quint16 port = params[3].toUShort();
+ quint64 size = 0;
+ QString numIp = params[2]; // this is either IPv4 as a 32 bit value, or IPv6 (which always contains a colon)
+ if (numIp.contains(':')) { // IPv6
+ if (!address.setAddress(numIp)) {
+ qWarning() << "Invalid IPv6:" << numIp;
+ return;
+ }
+ }
+ else {
+ address.setAddress(numIp.toUInt());
+ }
+
+ if (port == 0) { // Reverse DCC is indicated by a 0 port
+ emit newEvent(new MessageEvent(Message::Error, e->network(), tr("Reverse DCC SEND not supported"), e->prefix(), e->target(), Message::None, e->timestamp()));
+ return;
+ }
+ if (port < 1024) {
+ qWarning() << "Privileged port requested:" << port; // FIXME ask user if this is ok
+ }
+
+
+ if (params.count() > 4) { // filesize is optional
+ size = params[4].toULong();
+ }
+
+ // TODO: check if target is the right thing to use for the partner
+ CoreTransfer *transfer = new CoreTransfer(Transfer::Receive, e->target(), filename, address, port, size, this);
+ coreSession()->signalProxy()->synchronize(transfer);
+ coreSession()->transferManager()->addTransfer(transfer);
+ }
+ else {
+ emit newEvent(new MessageEvent(Message::Error, e->network(), tr("DCC %1 not supported").arg(cmd), e->prefix(), e->target(), Message::None, e->timestamp()));
+ return;
+ }
+ }
+}
+
+
void CoreSessionEventProcessor::handleCtcpPing(CtcpEvent *e)
{
- e->setReply(e->param());
+ e->setReply(e->param().isNull() ? "" : e->param());
}
projects / quassel.git / blobdiff