[Standards] XEP-184: Message Delivery Receipts - Message Type of Ack Messages
flo at geekplace.eu
Sat Apr 11 17:39:30 UTC 2015
Dear authors for XEP-184,
It has become obvious that XEP-184 is underspecified when it comes to
the message type of ack messages:
As far as I can tell, the following variants would remedy the situation.
Add to XEP-184 5.4.:
* Variant 1
The message type of an ack message MUST match the type of the message
with the related receipt request, if it's of type 'groupchat'. It SHOULD
match the type otherwise. A receiving entity MUST NOT make any
assumptions about the message type of an ack message.
* Variant 2
The message type of an ack message SHOULD be 'normal'. A receiving
entity MUST NOT make any assumptions about the message type of an ack
* Variant 3
A receiving entity MUST NOT make any assumptions about the message type
of an ack message.
* Variant 4
The message type of an ack message MUST be 'normal'.
Personally, I don't have a strong opinion towards any of the Variants
1-3. But I think Variant 4 should not be considered, as it imposes to
many restrictions. As short term solution, please implement Variant 3
now. Further additions could still be added later on.
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