twitch-bot/internal/helpers/cleanErrorIPs.go

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package helpers
import (
"errors"
"net"
"regexp"
)
var networkArrowErrorPart = regexp.MustCompile(` (?:(?:[0-9]+\.){3}[0-9]+:[0-9]+(?:->)?)+`)
// CleanNetworkAddressFromError checks whether an IP:Port->IP:port
// information is contained in the error. This is checked by explicitly
// sanitizing *net.OpError instances or by returning a sanitized error
// string without the stack previously present.
//
// As of the loss of information this is only intended to clean up
// logging and not be used in error returns.
func CleanNetworkAddressFromError(err error) error {
if opE, ok := err.(*net.OpError); ok {
// Error in the outmost position is an OpError, lets just patch it
opE.Source = nil
opE.Addr = nil
return opE
}
if networkArrowErrorPart.FindStringIndex(err.Error()) == nil {
// There is no network address somewhere inside, keep the error as is
return err
}
// Patch out IP information and create an new error with its message
return errors.New(networkArrowErrorPart.ReplaceAllString(err.Error(), ""))
}