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package wireguard
import (
"fmt"
"regexp"
"github.com/jwijenbergh/eduvpn-common/internal/types"
"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
)
func GenerateKey() (wgtypes.Key, error) {
key, keyErr := wgtypes.GeneratePrivateKey()
if keyErr != nil {
return key, &types.WrappedErrorMessage{Message: "failed generating WireGuard key", Err: keyErr}
}
return key, nil
}
// FIXME: Instead of doing a regex replace, decide if we should use a parser
func ConfigAddKey(config string, key wgtypes.Key) string {
interface_section := "[Interface]"
interface_section_escaped := regexp.QuoteMeta(interface_section)
// (?m) enables multi line mode
// ^ match from beginning of line
// $ match till end of line
// So it matches [Interface] section exactly
interface_re := regexp.MustCompile(fmt.Sprintf("(?m)^%s$", interface_section_escaped))
to_replace := fmt.Sprintf("%s\nPrivateKey = %s", interface_section, key.String())
return interface_re.ReplaceAllString(config, to_replace)
}
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