[hashcash] Re: Pure Python implementation of hashcash v.1
- From: "Eric S. Johansson" <esj@xxxxxxxxxx>
- To: hashcash@xxxxxxxxxxxxx
- Date: Fri, 24 Sep 2004 14:36:21 -0400
David Mertz, Ph.D. wrote:
I also check and write email on my Powerbook, with OSX and using
Mail.app. Anyone know if anyone has figured out how to interface with
Mail.app, it would certainly be nice to get hashcash integration there.
I imagine it must be possible--maybe in Applescript. But I don't have
any idea now how you would go about that.
well, you could take my hacks on smtpd.py and the postfix stamping
filter interface code and build yourself a stamping proxy. On the other
hand, I have been intending to create a version of Camram that runs on
client side machines and the mac is the most likely candidate.
It should scale down relatively well. You will need interfaces to mail
clients but proxies can work relatively well as long as you're not going
to too many mail sites. But even that can be accommodated relatively
easily with some minor smarts.
I think the most difficult portion is a pop 3 proxy but even that isn't
horribly hard, only time-consuming. You don't even need a particularly
fancy proxy, only one that will filter every message inbound and be able
to fool the client into dealing with missing messages.
http://pop3filter.sourceforge.net/
is one candidate only problem is that it forks the filter every single
time it gets a message. Rather unpleasant for anyone except a single
user machine.
an interesting modification of this proxy would be to use the login
sequence to communicate which machine you really want to connect to and
authenticate yourself for filtering at the same time. But that's
another conversation.
---eric
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