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43 lines
2.2 KiB
43 lines
2.2 KiB
14 years ago
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# Connect to firewalled sysreset fserves without /dccserver
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# SlickMcSly@mail.com
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# Everything here was derived through simple experimentation while learning how everything involved
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# works. If there's a better way I'm in no rush figure it out.
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#
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# Firewalled sysreset fserves try to open a dcc chat connection to the target port and send
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# the message "100 fservenick". After the fserve sends the "100 fservenick" message it expects a
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# "101 recipientnick" message, with "recipientnick" being the nick of whoever got the message.
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# I wasn't able to send it some1 else's nick and get a connection that way, which would be
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# interesting since you could theoretically serve connections to other ppl behind firewalls.
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#
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# This code requires opening a listening socket, but since sysreset is mircx specific (essentially
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# winhozed specific) it doesn't hestitate to asking people who connect to open a listening port in
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# the well known/privileged range which requires root (NONO). To deal with this, I setup iptables
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# to forward packets bound for port 59 to port 12345 (which can be bound by non-root) by using:
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# "iptables -t nat -I PREROUTING -p tcp -m multiport --dports 59 -j DNAT --to-destination :12345"
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# (this requires root)
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#
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# There also appears to also be an option for some firewalled dcc send protocol. I've only
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# encountered this once though and didn't care to figure it out.
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# Execute all the following code in the "New code tester" window
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alias(srfs) # Create alias: srfs
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{
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if($0 && $1) # make sure there are enough parameters
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{
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dcc.chat -n -u -p=12345 $0; # listen on port 12345 for incoming chat
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ctcp $0 $1-; # send the ctcp trigger
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}
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else
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echo "Usage: /srfs <nick> <trigger>"; # when there aren't enough parameters
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}
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event(OnDCCChatMessage,srfsHook) # Create OnDCCChatMessage event: srfs
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{
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# Since this event will parse ALL dcc chat messages, it looks for a message in the format
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# "100 word" with no other trailing text. This is only a hack so it doesn't verify that
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# "word" is a nickname, much less the nick of an expected fserve.
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if(!$str.cmp($str.word(0, $0-), "100") && $str.cmp($str.word(1, $0-), "") && !$str.cmp($str.word(2, $0-), ""))
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say "101 $me"; # reply 101 mynick # reply "101 mynick"
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}
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# End
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