+void CoreSessionEventProcessor::processIrcEventCap(IrcEvent *e)
+{
+ // 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);
+ QString capCommand = e->params().at(1).trimmed().toUpper();
+ if (capCommand == "LS" || capCommand == "NEW") {
+ // Either we've gotten a list of capabilities, or new capabilities we may want
+ // 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(' ');
+ }
+ // Store what capabilities are available
+ QStringList availableCapPair;
+ 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('=');
+ if(availableCapPair.count() >= 2) {
+ coreNet->addCap(availableCapPair.at(0).trimmed().toLower(), availableCapPair.at(1).trimmed());
+ } else {
+ coreNet->addCap(availableCapPair.at(0).trimmed().toLower());
+ }
+ }
+
+ // Begin capability requests when capability listing complete
+ if (capListFinished)
+ coreNet->beginCapNegotiation();
+ } else if (capCommand == "ACK") {
+ // Server: CAP * ACK :multi-prefix sasl
+ // Got the capability we want, handle as needed.
+ // As only one capability is requested at a time, no need to split
+ QString acceptedCap = e->params().at(2).trimmed().toLower();
+
+ // Mark this cap as accepted
+ coreNet->acknowledgeCap(acceptedCap);
+
+ if (!coreNet->capsRequiringConfiguration.contains(acceptedCap)) {
+ // Some capabilities (e.g. SASL) require further messages to finish. If so, do NOT
+ // send the next capability; it will be handled elsewhere in CoreNetwork.
+ // Otherwise, move on to the next capability
+ coreNet->sendNextCap();
+ }
+ } else if (capCommand == "NAK" || capCommand == "DEL") {
+ // Either something went wrong with this capability, or it is no longer supported
+ // > For CAP NAK
+ // Server: CAP * NAK :multi-prefix sasl
+ // > For CAP DEL
+ // Server: :irc.example.com CAP modernclient DEL :multi-prefix sasl
+ // CAP NAK and CAP DEL replies are always single-line
+
+ QStringList removedCaps;
+ removedCaps = e->params().at(2).split(' ');
+
+ // Store what capability was denied or removed
+ QString removedCap;
+ for (int i = 0; i < removedCaps.count(); ++i) {
+ removedCap = removedCaps[i].trimmed().toLower();
+ // Mark this cap as removed
+ coreNet->removeCap(removedCap);
+ }