On 2006-04-03, at 1609, Robin Bowes wrote:
This is how I've implemented a plugin for qpsmtpd that auths against vpopmaild. It's extremely easy: # create socketmy $vpopmaild_socket = IO::Socket::INET->new(PeerAddr => vpopmaild_host, PeerPort => vpopmaild_port,Proto => "tcp", Type => SOCK_STREAM) or return (DECLINED);
right here, you should read a line of input from the server and make sure it matches /^\+OK/. otherwise...
# send login details print $vpopmaild_socket "login $user $passClear\n\r"; # get response from server my $login_response = <$vpopmaild_socket>;
this read, being the first read since the client connects, will return the "+OK" line that the server sends when you first connect to the service, rather than the "+OK" or "-ERR" response from your "login" command.
you should also wait for the command to end (if the response was "+OK +", read lines until you see one which matches /^\.$/), then send "quit\n", then wait for the "+OK" response. otherwise you are writing sloppy code which doesn't follow the protocol, which only encourages others to do the same.
Of course, qpsmtpd is written in perl so this sort of thing *is* prettyeasy!
i love perl. if i ever meet larry wall, i owe him a beer.
the "auth.cdb" idea is a lot easier to write, and to me it makes more sense. however, the idea of using vpopmaild for this purpose is also intriguing from a programming standpoint (i.e. CAN i write this code, how can i make a single version of qmail-smtpd which can handle all three AUTH schemes- fork/exec vchkpw, auth.cdb, and vpopmaild.)You really should check out qpsmtpd. It can handle several auth types easily.
if it were for my own server, sure... but i'm releasing patches for people using qmail-smtpd. if i were to suddenly switch to qpsmtpd it would be like abandoning everybody else who is using my qmail patches, including all of my clients.
besides, qmail-smtpd is compiled, where qpsmtpd is interpreted and requires the perl runtime and a bunch of libraries. i tend to think in terms of mail servers which may be handling literally hundreds of SMTP requests per second.
-------------------------------------------------- | John M. Simpson - KG4ZOW - Programmer At Large | | http://www.jms1.net/ <[EMAIL PROTECTED]> | -------------------------------------------------- | Mac OS X proves that it's easier to make UNIX | | pretty than it is to make Windows secure. | --------------------------------------------------
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