109 lines
3.3 KiB
Go
109 lines
3.3 KiB
Go
package pogs
|
|
|
|
import (
|
|
"fmt"
|
|
"time"
|
|
)
|
|
|
|
// AuthenticateResponse is the serialized response from the Authenticate RPC.
|
|
// It's a 1:1 representation of the capnp message, so it's not very useful for programmers.
|
|
// Instead, you should call the `Outcome()` method to get a programmer-friendly sum type, with one
|
|
// case for each possible outcome.
|
|
type AuthenticateResponse struct {
|
|
PermanentErr string
|
|
RetryableErr string
|
|
Jwt []byte
|
|
HoursUntilRefresh uint8
|
|
}
|
|
|
|
// Outcome turns the deserialized response of Authenticate into a programmer-friendly sum type.
|
|
func (ar AuthenticateResponse) Outcome() AuthOutcome {
|
|
// If there was a network error, then cloudflared should retry later,
|
|
// because origintunneld couldn't prove whether auth was correct or not.
|
|
if ar.RetryableErr != "" {
|
|
return &AuthUnknown{Err: fmt.Errorf(ar.RetryableErr), HoursUntilRefresh: ar.HoursUntilRefresh}
|
|
}
|
|
|
|
// If the user's authentication was unsuccessful, the server will return an error explaining why.
|
|
// cloudflared should fatal with this error.
|
|
if ar.PermanentErr != "" {
|
|
return &AuthFail{Err: fmt.Errorf(ar.PermanentErr)}
|
|
}
|
|
|
|
// If auth succeeded, return the token and refresh it when instructed.
|
|
if ar.PermanentErr == "" && len(ar.Jwt) > 0 {
|
|
return &AuthSuccess{Jwt: ar.Jwt, HoursUntilRefresh: ar.HoursUntilRefresh}
|
|
}
|
|
|
|
// Otherwise the state got messed up.
|
|
return nil
|
|
}
|
|
|
|
// AuthOutcome is a programmer-friendly sum type denoting the possible outcomes of Authenticate.
|
|
//go-sumtype:decl AuthOutcome
|
|
type AuthOutcome interface {
|
|
isAuthOutcome()
|
|
// Serialize into an AuthenticateResponse which can be sent via Capnp
|
|
Serialize() AuthenticateResponse
|
|
}
|
|
|
|
// AuthSuccess means the backend successfully authenticated this cloudflared.
|
|
type AuthSuccess struct {
|
|
Jwt []byte
|
|
HoursUntilRefresh uint8
|
|
}
|
|
|
|
// RefreshAfter is how long cloudflared should wait before rerunning Authenticate.
|
|
func (ao *AuthSuccess) RefreshAfter() time.Duration {
|
|
return hoursToTime(ao.HoursUntilRefresh)
|
|
}
|
|
|
|
// Serialize into an AuthenticateResponse which can be sent via Capnp
|
|
func (ao *AuthSuccess) Serialize() AuthenticateResponse {
|
|
return AuthenticateResponse{
|
|
Jwt: ao.Jwt,
|
|
HoursUntilRefresh: ao.HoursUntilRefresh,
|
|
}
|
|
}
|
|
|
|
func (ao *AuthSuccess) isAuthOutcome() {}
|
|
|
|
// AuthFail means this cloudflared has the wrong auth and should exit.
|
|
type AuthFail struct {
|
|
Err error
|
|
}
|
|
|
|
// Serialize into an AuthenticateResponse which can be sent via Capnp
|
|
func (ao *AuthFail) Serialize() AuthenticateResponse {
|
|
return AuthenticateResponse{
|
|
PermanentErr: ao.Err.Error(),
|
|
}
|
|
}
|
|
|
|
func (ao *AuthFail) isAuthOutcome() {}
|
|
|
|
// AuthUnknown means the backend couldn't finish checking authentication. Try again later.
|
|
type AuthUnknown struct {
|
|
Err error
|
|
HoursUntilRefresh uint8
|
|
}
|
|
|
|
// RefreshAfter is how long cloudflared should wait before rerunning Authenticate.
|
|
func (ao *AuthUnknown) RefreshAfter() time.Duration {
|
|
return hoursToTime(ao.HoursUntilRefresh)
|
|
}
|
|
|
|
// Serialize into an AuthenticateResponse which can be sent via Capnp
|
|
func (ao *AuthUnknown) Serialize() AuthenticateResponse {
|
|
return AuthenticateResponse{
|
|
RetryableErr: ao.Err.Error(),
|
|
HoursUntilRefresh: ao.HoursUntilRefresh,
|
|
}
|
|
}
|
|
|
|
func (ao *AuthUnknown) isAuthOutcome() {}
|
|
|
|
func hoursToTime(hours uint8) time.Duration {
|
|
return time.Duration(hours) * time.Hour
|
|
}
|