package client import ( "errors" "fmt" apistatus "github.com/TrueCloudLab/frostfs-sdk-go/client/status" ) // unwraps err using errors.Unwrap and returns the result. func unwrapErr(err error) error { for e := errors.Unwrap(err); e != nil; e = errors.Unwrap(err) { err = e } return err } // IsErrContainerNotFound checks if err corresponds to NeoFS status // return corresponding to missing container. Supports wrapped errors. func IsErrContainerNotFound(err error) bool { switch unwrapErr(err).(type) { default: return false case apistatus.ContainerNotFound, *apistatus.ContainerNotFound: return true } } // IsErrEACLNotFound checks if err corresponds to NeoFS status // return corresponding to missing eACL table. Supports wrapped errors. func IsErrEACLNotFound(err error) bool { switch unwrapErr(err).(type) { default: return false case apistatus.EACLNotFound, *apistatus.EACLNotFound: return true } } // IsErrObjectNotFound checks if err corresponds to NeoFS status // return corresponding to missing object. Supports wrapped errors. func IsErrObjectNotFound(err error) bool { switch unwrapErr(err).(type) { default: return false case apistatus.ObjectNotFound, *apistatus.ObjectNotFound: return true } } // IsErrObjectAlreadyRemoved checks if err corresponds to NeoFS status // return corresponding to already removed object. Supports wrapped errors. func IsErrObjectAlreadyRemoved(err error) bool { switch unwrapErr(err).(type) { default: return false case apistatus.ObjectAlreadyRemoved, *apistatus.ObjectAlreadyRemoved: return true } } // IsErrSessionExpired checks if err corresponds to NeoFS status return // corresponding to expired session. Supports wrapped errors. func IsErrSessionExpired(err error) bool { switch unwrapErr(err).(type) { default: return false case apistatus.SessionTokenExpired, *apistatus.SessionTokenExpired: return true } } // IsErrSessionNotFound checks if err corresponds to NeoFS status return // corresponding to missing session. Supports wrapped errors. func IsErrSessionNotFound(err error) bool { switch unwrapErr(err).(type) { default: return false case apistatus.SessionTokenNotFound, *apistatus.SessionTokenNotFound: return true } } // returns error describing missing field with the given name. func newErrMissingResponseField(name string) error { return fmt.Errorf("missing %s field in the response", name) } // returns error describing invalid field (according to the NeoFS protocol) // with the given name and format violation err. func newErrInvalidResponseField(name string, err error) error { return fmt.Errorf("invalid %s field in the response: %w", name, err) }