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unreal: validate uplink protocol version (needs >=2351)

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This commit is contained in:
James Lu 2015-09-05 11:52:46 -07:00
parent cae4c60b56
commit b63d7619da
1 changed files with 13 additions and 1 deletions
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14
protocols/unreal.py
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@ -125,7 +125,6 @@ def handle_pong(irc, source, command, args):
def handle_server(irc, numeric, command, args):
# <- SERVER unreal.midnight.vpn 1 :U2351-Fhin6OoEM UnrealIRCd test server
# <- SERVER unreal.midnight.vpn 1 :UnrealIRCd test server
sname = args[0]
# TODO: handle introductions for other servers
if numeric == irc.uplink:
@ -136,6 +135,19 @@ def handle_server(irc, numeric, command, args):
"is probably too old! (Got: %s, needed: %s)" %
(sorted(irc.protodata.keys()),
sorted(_neededCaps)))
sdesc = args[-1].split(" ")
# Get our protocol version :)
vline = sdesc[0].split('-', 1)
try:
protover = int(vline[0].strip('U'))
except ValueError:
raise ProtocolError("Protocol version too old! (needs at least 2351 "
"(Unreal 3.4-beta1/2), got something invalid; "
"is VL being sent?)")
sdesc = args[-1][1:]
if protover < 2351:
raise ProtocolError("Protocol version too old! (needs at least 2351 "
"(Unreal 3.4-beta1/2), got %s)" % protover)
irc.servers[numeric] = IrcServer(None, sname)
else:
raise NotImplementedError