Socks4a now with Asynchronous hostname resolution

New submission from lorph <None>:

A short while ago I implemented the socks4a feature. It used a blocking gethostbyname to resolve hostnames which was a fast and easy update.

With this new slightly longer fix, the gethostbyname is replaced with reactor.resolve so it will not be blocking anymore. I have also updated the unit with help from Exarkun.

If you would like an easy way to test it on Firefox, here is how to do it.

Run this code:
{{{
from twisted.internet import reactor
from twisted.protocols.socks import SOCKSv4Factory

class SOCKSFactory(SOCKSv4Factory):
    def __init__(self):
        SOCKSv4Factory.__init__(self, '')
 
reactor.listenTCP(1080, SOCKSFactory())
reactor.run()
}}}

In Firefox, go to "about:config" and set "network.proxy.socks_remote_dns" to true. Then set the Firefox socks proxy to localhost:1080. This is also used in other programs such as utorrent.

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Type     : enhancement
Component: core
Keywords : socks protocols
Priority : normal
Nosy     : 
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http://twistedmatrix.com/trac/ticket/3920