package apistatus import ( "fmt" "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/container" "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/object" "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/session" "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/status" ) // StatusV2 defines a variety of Status instances compatible with FrostFS API V2 protocol. // // Note: it is not recommended to use this type directly, it is intended for documentation of the library functionality. type StatusV2 interface { Status // ToStatusV2 returns the status as git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/status.Status message structure. ToStatusV2() *status.Status } // FromStatusV2 converts status.Status message structure to Status instance. Inverse to ToStatusV2 operation. // // If result is not nil, it implements StatusV2. This fact should be taken into account only when passing // the result to the inverse function ToStatusV2, casts are not compatibility-safe. // // Below is the mapping of return codes to Status instance types (with a description of parsing details). // Note: notice if the return type is a pointer. // // Successes: // - status.OK: *SuccessDefaultV2 (this also includes nil argument). // // Common failures: // - status.Internal: *ServerInternal; // - status.SignatureVerificationFail: *SignatureVerification. // // Object failures: // - object.StatusLocked: *ObjectLocked; // - object.StatusLockNonRegularObject: *LockNonRegularObject. // - object.StatusAccessDenied: *ObjectAccessDenied. func FromStatusV2(st *status.Status) Status { var decoder interface { fromStatusV2(*status.Status) } switch code := st.Code(); { case status.IsSuccess(code): //nolint:exhaustive switch status.LocalizeSuccess(&code); code { case status.OK: decoder = new(SuccessDefaultV2) } case status.IsCommonFail(code): switch status.LocalizeCommonFail(&code); code { case status.Internal: decoder = new(ServerInternal) case status.WrongMagicNumber: decoder = new(WrongMagicNumber) case status.SignatureVerificationFail: decoder = new(SignatureVerification) case status.NodeUnderMaintenance: decoder = new(NodeUnderMaintenance) } case object.LocalizeFailStatus(&code): switch code { case object.StatusLocked: decoder = new(ObjectLocked) case object.StatusLockNonRegularObject: decoder = new(LockNonRegularObject) case object.StatusAccessDenied: decoder = new(ObjectAccessDenied) case object.StatusNotFound: decoder = new(ObjectNotFound) case object.StatusAlreadyRemoved: decoder = new(ObjectAlreadyRemoved) case object.StatusOutOfRange: decoder = new(ObjectOutOfRange) } case container.LocalizeFailStatus(&code): //nolint:exhaustive switch code { case container.StatusNotFound: decoder = new(ContainerNotFound) case container.StatusEACLNotFound: decoder = new(EACLNotFound) } case session.LocalizeFailStatus(&code): //nolint:exhaustive switch code { case session.StatusTokenNotFound: decoder = new(SessionTokenNotFound) case session.StatusTokenExpired: decoder = new(SessionTokenExpired) } } if decoder == nil { decoder = new(unrecognizedStatusV2) } decoder.fromStatusV2(st) return decoder } // ToStatusV2 converts Status instance to status.Status message structure. Inverse to FromStatusV2 operation. // // If argument is the StatusV2 instance, it is converted directly. // Otherwise, successes are converted with status.OK code w/o details and message, // failures - with status.Internal and error text message w/o details. func ToStatusV2(st Status) *status.Status { if v, ok := st.(StatusV2); ok { return v.ToStatusV2() } if IsSuccessful(st) { return newStatusV2WithLocalCode(status.OK, status.GlobalizeSuccess) } internalErrorStatus := newStatusV2WithLocalCode(status.Internal, status.GlobalizeCommonFail) internalErrorStatus.SetMessage(st.(error).Error()) // type cast never panics because IsSuccessful() checks cast return internalErrorStatus } func errMessageStatusV2(code interface{}, msg string) string { const ( noMsgFmt = "status: code = %v" msgFmt = noMsgFmt + " message = %s" ) if msg != "" { return fmt.Sprintf(msgFmt, code, msg) } return fmt.Sprintf(noMsgFmt, code) } func newStatusV2WithLocalCode(code status.Code, globalizer func(*status.Code)) *status.Status { var st status.Status st.SetCode(globalizeCodeV2(code, globalizer)) return &st } func globalizeCodeV2(code status.Code, globalizer func(*status.Code)) status.Code { globalizer(&code) return code }