+bool Network::saslMaybeSupports(const QString &saslMechanism) const
+{
+ if (!capAvailable(IrcCap::SASL)) {
+ // If SASL's not advertised at all, it's likely the mechanism isn't supported, as per specs.
+ // Unfortunately, we don't know for sure, but Quassel won't request SASL without it being
+ // advertised, anyways.
+ // This may also occur if the network's disconnected or negotiation hasn't yet happened.
+ return false;
+ }
+
+ // Get the SASL capability value
+ QString saslCapValue = capValue(IrcCap::SASL);
+ // SASL mechanisms are only specified in capability values as part of SASL 3.2. In SASL 3.1,
+ // it's handled differently. If we don't know via capability value, assume it's supported to
+ // reduce the risk of breaking existing setups.
+ // See: http://ircv3.net/specs/extensions/sasl-3.1.html
+ // And: http://ircv3.net/specs/extensions/sasl-3.2.html
+ return (saslCapValue.length() == 0)
+ || (saslCapValue.contains(saslMechanism, Qt::CaseInsensitive));
+}
+
+