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fix #2228 (#2233)

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If the server is UTF8ONLY, validate that the MOTD is UTF8
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Shivaram Lingamneni 2025-03-22 23:13:31 -04:00 committed by GitHub
parent 9dc2fd52ed
commit 467df24914
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1 changed files with 4 additions and 0 deletions
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4
irc/config.go
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@ -22,6 +22,7 @@ import (
"strconv"
"strings"
"time"
"unicode/utf8"
"code.cloudfoundry.org/bytefmt"
"github.com/ergochat/irc-go/ircfmt"
@ -1864,6 +1865,9 @@ func (config *Config) loadMOTD() error {
if config.Server.MOTDFormatting {
lineToSend = ircfmt.Unescape(lineToSend)
}
if config.Server.EnforceUtf8 && !utf8.ValidString(lineToSend) {
return fmt.Errorf("Line %d of MOTD contains invalid UTF8", i+1)
}
// "- " is the required prefix for MOTD
lineToSend = fmt.Sprintf("- %s", lineToSend)
config.Server.motdLines = append(config.Server.motdLines, lineToSend)