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improve robustness of timestamp parsing (#2250)
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* Clamp CHATHISTORY timestamp selectors to be in [0, MaxInt64]
* Convert everything to UTC up front (probably a no-op)
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Shivaram Lingamneni 2025-04-24 23:37:48 -04:00 • committed by GitHub
parent 2cf569c5d9
commit 54b17b0700
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2 changed files with 12 additions and 0 deletions
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9
irc/handlers.go
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@ -755,6 +755,14 @@ func chathistoryHandler(server *Server, client *Client, msg ircmsg.Message, rb *
return
} else if identifier == "timestamp" {
timestamp, err = time.Parse(IRCv3TimestampFormat, value)
if err == nil {
timestamp = timestamp.UTC()
if timestamp.Before(unixEpoch) {
timestamp = unixEpoch
} else if timestamp.After(year2262Problem) {
timestamp = year2262Problem
}
}
return
}
return
@ -3052,6 +3060,7 @@ func markReadHandler(server *Server, client *Client, msg ircmsg.Message, rb *Res
rb.Add(nil, server.name, "FAIL", "MARKREAD", "INVALID_PARAMS", utils.SafeErrorParam(readTimestamp), client.t("Invalid timestamp"))
return
}
readTime = readTime.UTC()
result := client.SetReadMarker(cftarget, readTime)
readTimestamp = fmt.Sprintf("timestamp=%s", result.Format(IRCv3TimestampFormat))
// inform the originating session whether it was a success or a no-op: