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exempt a configurable number of MARKREAD commands from fakelag

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This commit is contained in:
Shivaram Lingamneni 2022-08-22 23:23:17 -04:00
parent 7d6ff58bf8
commit 7ad31497c2
6 changed files with 59 additions and 12 deletions
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18
irc/client.go
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@ -668,12 +668,21 @@ func (client *Client) run(session *Session) {
}
}
msg, err := ircmsg.ParseLineStrict(line, true, MaxLineLen)
// XXX defer processing of command error parsing until after fakelag
if client.registered {
touches := session.deferredFakelagCount + 1
session.deferredFakelagCount = 0
for i := 0; i < touches; i++ {
session.fakelag.Touch()
// apply deferred fakelag
for i := 0; i < session.deferredFakelagCount; i++ {
session.fakelag.Touch("")
}
session.deferredFakelagCount = 0
// touch for the current command
var command string
if err == nil {
command = msg.Command
}
session.fakelag.Touch(command)
} else {
// DoS hardening, #505
session.registrationMessages++
@ -683,7 +692,6 @@ func (client *Client) run(session *Session) {
}
}
msg, err := ircmsg.ParseLineStrict(line, true, MaxLineLen)
if err == ircmsg.ErrorLineIsEmpty {
continue
} else if err == ircmsg.ErrorTagsTooLong {