[freenet-dev] TestDDA issue

[Florent Daignière]

* bbackde at googlemail.com <bbackde at googlemail.com> [2007-07-08 12:53:30]:

> Hello,
> 
> I want to implement the TestDDA functionality, but I will wait until
> TestDDA supports DDA from read-only devices (upload of files from
> DVD). 

It's possible but not through TestDDA itself; by design.

> Is this already possible, did I miss something?

It's possible; that's what the FileHash parameter of ClientPut is for...
If you provide the node a correct hash of the the file's content, salt
and FCP session number, it will allow uploads from disk even from RO
medias.

Of course computing that hash twice (on both node and client side) is
expensive and should be avoided if possible... Hence we have TestDDA...
TestDDA allows you though FCP to "whitelist" parts of the filesystem.

That said, "direct uploads" are even more expensive.

I hope it makes sense to you, do not hesitate to ask if it doesn't...
I'm not sure how clear my explanation is :)

Regards,
	NextGen$
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