influxdb/context/token.go

72 lines
1.6 KiB
Go

package context
import (
"context"
"fmt"
"github.com/influxdata/influxdb/v2/kit/platform"
"github.com/influxdata/influxdb/v2/kit/platform/errors"
"github.com/influxdata/influxdb/v2"
)
type contextKey string
const (
authorizerCtxKey contextKey = "influx/authorizer/v1"
)
// SetAuthorizer sets an authorizer on context.
func SetAuthorizer(ctx context.Context, a influxdb.Authorizer) context.Context {
return context.WithValue(ctx, authorizerCtxKey, a)
}
// GetAuthorizer retrieves an authorizer from context.
func GetAuthorizer(ctx context.Context) (influxdb.Authorizer, error) {
a, ok := ctx.Value(authorizerCtxKey).(influxdb.Authorizer)
if !ok {
return nil, &errors.Error{
Msg: "authorizer not found on context",
Code: errors.EInternal,
}
}
if a == nil {
return nil, &errors.Error{
Code: errors.EInternal,
Msg: "unexpected invalid authorizer",
}
}
return a, nil
}
// GetToken retrieves a token from the context; errors if no token.
func GetToken(ctx context.Context) (string, error) {
a, ok := ctx.Value(authorizerCtxKey).(influxdb.Authorizer)
if !ok {
return "", &errors.Error{
Msg: "authorizer not found on context",
Code: errors.EInternal,
}
}
auth, ok := a.(*influxdb.Authorization)
if !ok {
return "", &errors.Error{
Msg: fmt.Sprintf("authorizer not an authorization but a %T", a),
Code: errors.EInternal,
}
}
return auth.Token, nil
}
// GetUserID retrieves the user ID from the authorizer on the context.
func GetUserID(ctx context.Context) (platform.ID, error) {
a, err := GetAuthorizer(ctx)
if err != nil {
return 0, err
}
return a.GetUserID(), nil
}