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// Copyright 2017 Canonical Ltd.
// Licensed under the LGPLv3, see LICENCE file for details.
package candidtest
import (
"context"
"github.com/go-macaroon-bakery/macaroon-bakery/v3/bakery/checkers"
errgo "gopkg.in/errgo.v1"
)
const candidtestNamespace = "github.com/juju/candidclient/candidtest"
var checker = newChecker()
func newChecker() *checkers.Checker {
ch := checkers.New(nil)
ch.Namespace().Register(candidtestNamespace, "candidtest")
ch.Register("discharge-id", candidtestNamespace, checkDischargeID)
return ch
}
type dischargeIDKey struct{}
func contextWithDischargeID(ctx context.Context, dischargeID string) context.Context {
return context.WithValue(ctx, dischargeIDKey{}, dischargeID)
}
func dischargeIDFromContext(ctx context.Context) string {
dischargeID, _ := ctx.Value(dischargeIDKey{}).(string)
return dischargeID
}
func dischargeIDCaveat(dischargeID string) checkers.Caveat {
return checkers.Caveat{
Condition: "discharge-id " + dischargeID,
Namespace: candidtestNamespace,
}
}
func checkDischargeID(ctx context.Context, cond, arg string) error {
if dischargeIDFromContext(ctx) == arg {
return nil
}
return errgo.New("incorrect discharge id")
}
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