* Florian Schmaus <[email protected]> [2015-04-20 15:27]: > Contra: > - Messages and IQs could be used instead > - Can't be used with BOSH
As you pointed out below, they can be used in theory. I just assume that most implementations will not expect them and might break in subtle ways. IIRC, it required significant refactoring of the Smack XMPP library to accommodate them. I'm sure similar effort will be required in most other XMPP client and server implementations. > - Introduces a bunch of conceptual and implementations problems One specific problem is that they can not be accounted for in XEP-0198, and therefore it is not clear if a Nonza got successfully delivered to the recipient in case of stream resumption. In the CSI discussion this caused confusion and led to the notion of resetting the CSI state on stream resumption, which looks like fixing the symptoms. > Pro: > - Expresses the semantic that they are not routed > - This increases security, as they are harder to spoof I understand the first two points, but I'm not sure if they really outweigh the problems. > A. Nonzas MUST NOT be used after resource binding With the obvious exception of XEP-0198, of course. Georg -- || http://op-co.de ++ GCS d--(++) s: a C+++ UL+++ !P L+++ !E W+++ N ++ || gpg: 0x962FD2DE || o? K- w---() O M V? PS+ PE-- Y++ PGP+ t+ 5 R+ || || Ge0rG: euIRCnet || X(+++) tv+ b+(++) DI+++ D- G e++++ h- r++ y? || ++ IRCnet OFTC OPN ||_________________________________________________||
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