[Standards] Jingle File Transfer (XEP-0234) uses NonNegativeInteger instead of UnsignedLong.
flo at geekplace.eu
Tue Jul 18 10:16:02 UTC 2017
On 17.07.2017 14:45, Jonas Wielicki wrote:
> On Montag, 17. Juli 2017 13:29:02 CEST Paul Schaub wrote:
>> This is a very minor issue, but XEP-0234 uses positiveInteger as
>> attribute type for the FileTransferElementType's size attribute.
>> positiveInteger contains all positive numbers except '0', which requires
>> implementers to choose eg. the BigInteger class to represent that value.
> Or an implementation could reject the transfer with a policy-violation or
> similar error in case it cannot handle files or numbers that big.
IMHO unbounded values should be avoided in protocols when possible.
>> I think unsignedLong would fit better here. Same goes for the
>> fileTransferRangeType's offset value, which is currently
>> nonNegativeInteger. This limits the size of the transferred file to 4GB
>> or less.
> Please let us not do that in the standard. I know, nobody will ever transfer 4
> GiB files over XMPP---until someone does. The size should at least be 64 bits
xs:unsignedLong is 64 bits .
> wide, but I really prefer to have the maximum size unspecified in the XEP and
> let implementations handle too large numbers with an appropriate error.
"64 bits should be enough for everyone"
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