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Copy pathendpoint_config.go
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239 lines (205 loc) · 5.22 KB
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package connet
import (
"fmt"
"slices"
"github.com/connet-dev/connet/pkg/proto/pbconnect"
"github.com/connet-dev/connet/pkg/proto/pbmodel"
)
type endpointConfig struct {
endpoint Endpoint
role Role
route RouteOption
}
type Endpoint struct{ string }
func NewEndpoint(s string) Endpoint {
return Endpoint{s}
}
func EndpointFromPB(f *pbmodel.Endpoint) Endpoint {
return Endpoint{f.Name}
}
func (f Endpoint) PB() *pbmodel.Endpoint {
return &pbmodel.Endpoint{Name: f.string}
}
func (f Endpoint) String() string {
return f.string
}
func (f Endpoint) MarshalText() ([]byte, error) {
return []byte(f.string), nil
}
func (f *Endpoint) UnmarshalText(b []byte) error {
*f = Endpoint{string(b)}
return nil
}
func EndpointNames(eps []Endpoint) []string {
strs := make([]string, len(eps))
for i, ep := range eps {
strs[i] = ep.string
}
return strs
}
type Role struct{ string }
var (
RoleUnknown = Role{}
RoleDestination = Role{"destination"}
RoleSource = Role{"source"}
)
func RoleFromPB(r pbmodel.Role) Role {
switch r {
case pbmodel.Role_RoleDestination:
return RoleDestination
case pbmodel.Role_RoleSource:
return RoleSource
default:
return RoleUnknown
}
}
func ParseRole(s string) (Role, error) {
switch s {
case RoleDestination.string:
return RoleDestination, nil
case RoleSource.string:
return RoleSource, nil
}
return RoleUnknown, fmt.Errorf("invalid role '%s'", s)
}
func (r Role) PB() pbmodel.Role {
switch r {
case RoleDestination:
return pbmodel.Role_RoleDestination
case RoleSource:
return pbmodel.Role_RoleSource
default:
return pbmodel.Role_RoleUnknown
}
}
func (r Role) Invert() Role {
switch r {
case RoleDestination:
return RoleSource
case RoleSource:
return RoleDestination
default:
return RoleUnknown
}
}
func (r Role) String() string {
return r.string
}
func (r Role) MarshalText() ([]byte, error) {
return []byte(r.string), nil
}
func (r *Role) UnmarshalText(b []byte) error {
switch s := string(b); s {
case RoleDestination.string:
*r = RoleDestination
case RoleSource.string:
*r = RoleSource
default:
return fmt.Errorf("invalid role '%s'", s)
}
return nil
}
type RouteOption struct{ string }
var (
RouteAny = RouteOption{"any"}
RouteDirect = RouteOption{"direct"}
RouteRelay = RouteOption{"relay"}
)
func ParseRouteOption(s string) (RouteOption, error) {
switch s {
case RouteAny.string:
return RouteAny, nil
case RouteDirect.string:
return RouteDirect, nil
case RouteRelay.string:
return RouteRelay, nil
}
return RouteOption{}, fmt.Errorf("invalid route option '%s'", s)
}
func (r RouteOption) AllowFrom(from RouteOption) bool {
switch from {
case RouteDirect:
return r.AllowDirect()
case RouteRelay:
return r.AllowRelay()
}
return false
}
func (r RouteOption) AllowDirect() bool {
return r == RouteAny || r == RouteDirect
}
func (r RouteOption) AllowRelay() bool {
return r == RouteAny || r == RouteRelay
}
type EncryptionScheme struct{ string }
var (
NoEncryption = EncryptionScheme{"none"}
TLSEncryption = EncryptionScheme{"tls"}
DHXCPEncryption = EncryptionScheme{"dhxcp"}
)
func EncryptionFromPB(pb pbconnect.RelayEncryptionScheme) (EncryptionScheme, error) {
switch pb {
case pbconnect.RelayEncryptionScheme_EncryptionNone:
return NoEncryption, nil
case pbconnect.RelayEncryptionScheme_TLS:
return TLSEncryption, nil
case pbconnect.RelayEncryptionScheme_DHX25519_CHACHAPOLY:
return DHXCPEncryption, nil
default:
return EncryptionScheme{}, fmt.Errorf("invalid encryption scheme: %d", pb)
}
}
func ParseEncryptionScheme(s string) (EncryptionScheme, error) {
switch s {
case NoEncryption.string:
return NoEncryption, nil
case TLSEncryption.string:
return TLSEncryption, nil
case DHXCPEncryption.string:
return DHXCPEncryption, nil
default:
return EncryptionScheme{}, fmt.Errorf("invalid encryption scheme '%s'", s)
}
}
func (e EncryptionScheme) PB() pbconnect.RelayEncryptionScheme {
switch e {
case NoEncryption:
return pbconnect.RelayEncryptionScheme_EncryptionNone
case TLSEncryption:
return pbconnect.RelayEncryptionScheme_TLS
case DHXCPEncryption:
return pbconnect.RelayEncryptionScheme_DHX25519_CHACHAPOLY
default:
panic(fmt.Sprintf("invalid encryption scheme: %s", e.string))
}
}
func PBFromEncryptions(schemes []EncryptionScheme) []pbconnect.RelayEncryptionScheme {
pbs := make([]pbconnect.RelayEncryptionScheme, len(schemes))
for i, sc := range schemes {
pbs[i] = sc.PB()
}
return pbs
}
func EncryptionsFromPB(pbs []pbconnect.RelayEncryptionScheme) ([]EncryptionScheme, error) {
schemes := make([]EncryptionScheme, len(pbs))
var err error
for i, s := range pbs {
schemes[i], err = EncryptionFromPB(s)
if err != nil {
return nil, err
}
}
return schemes, nil
}
func SelectEncryptionScheme(dst []EncryptionScheme, src []EncryptionScheme) (EncryptionScheme, error) {
switch {
case slices.Contains(dst, TLSEncryption) && slices.Contains(src, TLSEncryption):
return TLSEncryption, nil
case slices.Contains(dst, DHXCPEncryption) && slices.Contains(src, DHXCPEncryption):
return DHXCPEncryption, nil
case slices.Contains(dst, NoEncryption) && slices.Contains(src, NoEncryption):
return NoEncryption, nil
default:
return EncryptionScheme{}, fmt.Errorf("no shared encryption schemes")
}
}