ircutils

func HostnameIsValid ¶

func HostnameIsValid(hostname string) bool

HostnameIsValid provides a way for servers to check whether a looked-up client hostname is valid (see InspIRCd #1033 for why this is required).

This function shouldn't be called by clients since they don't need to validate hostnames for IRC use, just by servers that need to confirm hostnames of incoming clients.

In addition to this function, servers should impose their own limits on max hostname length -- this function limits it to 200 but most servers will probably want to make it smaller than that.

func SanitizeText ¶

func SanitizeText(message string, byteLimit int) (result string)

Sanitizes human-readable text to make it safe for IRC; assumes UTF-8 and uses the replacement character where applicable.

func TruncateUTF8Safe ¶

func TruncateUTF8Safe(message string, byteLimit int) (result string)

truncate a message, taking care not to make valid UTF8 into invalid UTF8