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// Copyright 2015 The etcd Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package rpctypes
import (
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
// server-side error
var (
ErrGRPCEmptyKey = status.New(codes.InvalidArgument, "etcdserver: key is not provided").Err()
ErrGRPCKeyNotFound = status.New(codes.InvalidArgument, "etcdserver: key not found").Err()
ErrGRPCValueProvided = status.New(codes.InvalidArgument, "etcdserver: value is provided").Err()
ErrGRPCLeaseProvided = status.New(codes.InvalidArgument, "etcdserver: lease is provided").Err()
ErrGRPCTooManyOps = status.New(codes.InvalidArgument, "etcdserver: too many operations in txn request").Err()
ErrGRPCDuplicateKey = status.New(codes.InvalidArgument, "etcdserver: duplicate key given in txn request").Err()
ErrGRPCCompacted = status.New(codes.OutOfRange, "etcdserver: mvcc: required revision has been compacted").Err()
ErrGRPCFutureRev = status.New(codes.OutOfRange, "etcdserver: mvcc: required revision is a future revision").Err()
ErrGRPCNoSpace = status.New(codes.ResourceExhausted, "etcdserver: mvcc: database space exceeded").Err()
ErrGRPCLeaseNotFound = status.New(codes.NotFound, "etcdserver: requested lease not found").Err()
ErrGRPCLeaseExist = status.New(codes.FailedPrecondition, "etcdserver: lease already exists").Err()
ErrGRPCLeaseTTLTooLarge = status.New(codes.OutOfRange, "etcdserver: too large lease TTL").Err()
ErrGRPCMemberExist = status.New(codes.FailedPrecondition, "etcdserver: member ID already exist").Err()
ErrGRPCPeerURLExist = status.New(codes.FailedPrecondition, "etcdserver: Peer URLs already exists").Err()
ErrGRPCMemberNotEnoughStarted = status.New(codes.FailedPrecondition, "etcdserver: re-configuration failed due to not enough started members").Err()
ErrGRPCMemberBadURLs = status.New(codes.InvalidArgument, "etcdserver: given member URLs are invalid").Err()
ErrGRPCMemberNotFound = status.New(codes.NotFound, "etcdserver: member not found").Err()
ErrGRPCMemberNotLearner = status.New(codes.FailedPrecondition, "etcdserver: can only promote a learner member").Err()
ErrGRPCLearnerNotReady = status.New(codes.FailedPrecondition, "etcdserver: can only promote a learner member which is in sync with leader").Err()
ErrGRPCTooManyLearners = status.New(codes.FailedPrecondition, "etcdserver: too many learner members in cluster").Err()
ErrGRPCRequestTooLarge = status.New(codes.InvalidArgument, "etcdserver: request is too large").Err()
ErrGRPCRequestTooManyRequests = status.New(codes.ResourceExhausted, "etcdserver: too many requests").Err()
ErrGRPCRootUserNotExist = status.New(codes.FailedPrecondition, "etcdserver: root user does not exist").Err()
ErrGRPCRootRoleNotExist = status.New(codes.FailedPrecondition, "etcdserver: root user does not have root role").Err()
ErrGRPCUserAlreadyExist = status.New(codes.FailedPrecondition, "etcdserver: user name already exists").Err()
ErrGRPCUserEmpty = status.New(codes.InvalidArgument, "etcdserver: user name is empty").Err()
ErrGRPCUserNotFound = status.New(codes.FailedPrecondition, "etcdserver: user name not found").Err()
ErrGRPCRoleAlreadyExist = status.New(codes.FailedPrecondition, "etcdserver: role name already exists").Err()
ErrGRPCRoleNotFound = status.New(codes.FailedPrecondition, "etcdserver: role name not found").Err()
ErrGRPCRoleEmpty = status.New(codes.InvalidArgument, "etcdserver: role name is empty").Err()
ErrGRPCAuthFailed = status.New(codes.InvalidArgument, "etcdserver: authentication failed, invalid user ID or password").Err()
ErrGRPCPermissionDenied = status.New(codes.PermissionDenied, "etcdserver: permission denied").Err()
ErrGRPCRoleNotGranted = status.New(codes.FailedPrecondition, "etcdserver: role is not granted to the user").Err()
ErrGRPCPermissionNotGranted = status.New(codes.FailedPrecondition, "etcdserver: permission is not granted to the role").Err()
ErrGRPCAuthNotEnabled = status.New(codes.FailedPrecondition, "etcdserver: authentication is not enabled").Err()
ErrGRPCInvalidAuthToken = status.New(codes.Unauthenticated, "etcdserver: invalid auth token").Err()
ErrGRPCInvalidAuthMgmt = status.New(codes.InvalidArgument, "etcdserver: invalid auth management").Err()
ErrGRPCNoLeader = status.New(codes.Unavailable, "etcdserver: no leader").Err()
ErrGRPCNotLeader = status.New(codes.FailedPrecondition, "etcdserver: not leader").Err()
ErrGRPCLeaderChanged = status.New(codes.Unavailable, "etcdserver: leader changed").Err()
ErrGRPCNotCapable = status.New(codes.Unavailable, "etcdserver: not capable").Err()
ErrGRPCStopped = status.New(codes.Unavailable, "etcdserver: server stopped").Err()
ErrGRPCTimeout = status.New(codes.Unavailable, "etcdserver: request timed out").Err()
ErrGRPCTimeoutDueToLeaderFail = status.New(codes.Unavailable, "etcdserver: request timed out, possibly due to previous leader failure").Err()
ErrGRPCTimeoutDueToConnectionLost = status.New(codes.Unavailable, "etcdserver: request timed out, possibly due to connection lost").Err()
ErrGRPCUnhealthy = status.New(codes.Unavailable, "etcdserver: unhealthy cluster").Err()
ErrGRPCCorrupt = status.New(codes.DataLoss, "etcdserver: corrupt cluster").Err()
ErrGPRCNotSupportedForLearner = status.New(codes.Unavailable, "etcdserver: rpc not supported for learner").Err()
ErrGRPCBadLeaderTransferee = status.New(codes.FailedPrecondition, "etcdserver: bad leader transferee").Err()
errStringToError = map[string]error{
ErrorDesc(ErrGRPCEmptyKey): ErrGRPCEmptyKey,
ErrorDesc(ErrGRPCKeyNotFound): ErrGRPCKeyNotFound,
ErrorDesc(ErrGRPCValueProvided): ErrGRPCValueProvided,
ErrorDesc(ErrGRPCLeaseProvided): ErrGRPCLeaseProvided,
ErrorDesc(ErrGRPCTooManyOps): ErrGRPCTooManyOps,
ErrorDesc(ErrGRPCDuplicateKey): ErrGRPCDuplicateKey,
ErrorDesc(ErrGRPCCompacted): ErrGRPCCompacted,
ErrorDesc(ErrGRPCFutureRev): ErrGRPCFutureRev,
ErrorDesc(ErrGRPCNoSpace): ErrGRPCNoSpace,
ErrorDesc(ErrGRPCLeaseNotFound): ErrGRPCLeaseNotFound,
ErrorDesc(ErrGRPCLeaseExist): ErrGRPCLeaseExist,
ErrorDesc(ErrGRPCLeaseTTLTooLarge): ErrGRPCLeaseTTLTooLarge,
ErrorDesc(ErrGRPCMemberExist): ErrGRPCMemberExist,
ErrorDesc(ErrGRPCPeerURLExist): ErrGRPCPeerURLExist,
ErrorDesc(ErrGRPCMemberNotEnoughStarted): ErrGRPCMemberNotEnoughStarted,
ErrorDesc(ErrGRPCMemberBadURLs): ErrGRPCMemberBadURLs,
ErrorDesc(ErrGRPCMemberNotFound): ErrGRPCMemberNotFound,
ErrorDesc(ErrGRPCMemberNotLearner): ErrGRPCMemberNotLearner,
ErrorDesc(ErrGRPCLearnerNotReady): ErrGRPCLearnerNotReady,
ErrorDesc(ErrGRPCTooManyLearners): ErrGRPCTooManyLearners,
ErrorDesc(ErrGRPCRequestTooLarge): ErrGRPCRequestTooLarge,
ErrorDesc(ErrGRPCRequestTooManyRequests): ErrGRPCRequestTooManyRequests,
ErrorDesc(ErrGRPCRootUserNotExist): ErrGRPCRootUserNotExist,
ErrorDesc(ErrGRPCRootRoleNotExist): ErrGRPCRootRoleNotExist,
ErrorDesc(ErrGRPCUserAlreadyExist): ErrGRPCUserAlreadyExist,
ErrorDesc(ErrGRPCUserEmpty): ErrGRPCUserEmpty,
ErrorDesc(ErrGRPCUserNotFound): ErrGRPCUserNotFound,
ErrorDesc(ErrGRPCRoleAlreadyExist): ErrGRPCRoleAlreadyExist,
ErrorDesc(ErrGRPCRoleNotFound): ErrGRPCRoleNotFound,
ErrorDesc(ErrGRPCRoleEmpty): ErrGRPCRoleEmpty,
ErrorDesc(ErrGRPCAuthFailed): ErrGRPCAuthFailed,
ErrorDesc(ErrGRPCPermissionDenied): ErrGRPCPermissionDenied,
ErrorDesc(ErrGRPCRoleNotGranted): ErrGRPCRoleNotGranted,
ErrorDesc(ErrGRPCPermissionNotGranted): ErrGRPCPermissionNotGranted,
ErrorDesc(ErrGRPCAuthNotEnabled): ErrGRPCAuthNotEnabled,
ErrorDesc(ErrGRPCInvalidAuthToken): ErrGRPCInvalidAuthToken,
ErrorDesc(ErrGRPCInvalidAuthMgmt): ErrGRPCInvalidAuthMgmt,
ErrorDesc(ErrGRPCNoLeader): ErrGRPCNoLeader,
ErrorDesc(ErrGRPCNotLeader): ErrGRPCNotLeader,
ErrorDesc(ErrGRPCLeaderChanged): ErrGRPCLeaderChanged,
ErrorDesc(ErrGRPCNotCapable): ErrGRPCNotCapable,
ErrorDesc(ErrGRPCStopped): ErrGRPCStopped,
ErrorDesc(ErrGRPCTimeout): ErrGRPCTimeout,
ErrorDesc(ErrGRPCTimeoutDueToLeaderFail): ErrGRPCTimeoutDueToLeaderFail,
ErrorDesc(ErrGRPCTimeoutDueToConnectionLost): ErrGRPCTimeoutDueToConnectionLost,
ErrorDesc(ErrGRPCUnhealthy): ErrGRPCUnhealthy,
ErrorDesc(ErrGRPCCorrupt): ErrGRPCCorrupt,
ErrorDesc(ErrGPRCNotSupportedForLearner): ErrGPRCNotSupportedForLearner,
ErrorDesc(ErrGRPCBadLeaderTransferee): ErrGRPCBadLeaderTransferee,
}
)
// client-side error
var (
ErrEmptyKey = Error(ErrGRPCEmptyKey)
ErrKeyNotFound = Error(ErrGRPCKeyNotFound)
ErrValueProvided = Error(ErrGRPCValueProvided)
ErrLeaseProvided = Error(ErrGRPCLeaseProvided)
ErrTooManyOps = Error(ErrGRPCTooManyOps)
ErrDuplicateKey = Error(ErrGRPCDuplicateKey)
ErrCompacted = Error(ErrGRPCCompacted)
ErrFutureRev = Error(ErrGRPCFutureRev)
ErrNoSpace = Error(ErrGRPCNoSpace)
ErrLeaseNotFound = Error(ErrGRPCLeaseNotFound)
ErrLeaseExist = Error(ErrGRPCLeaseExist)
ErrLeaseTTLTooLarge = Error(ErrGRPCLeaseTTLTooLarge)
ErrMemberExist = Error(ErrGRPCMemberExist)
ErrPeerURLExist = Error(ErrGRPCPeerURLExist)
ErrMemberNotEnoughStarted = Error(ErrGRPCMemberNotEnoughStarted)
ErrMemberBadURLs = Error(ErrGRPCMemberBadURLs)
ErrMemberNotFound = Error(ErrGRPCMemberNotFound)
ErrMemberNotLearner = Error(ErrGRPCMemberNotLearner)
ErrMemberLearnerNotReady = Error(ErrGRPCLearnerNotReady)
ErrTooManyLearners = Error(ErrGRPCTooManyLearners)
ErrRequestTooLarge = Error(ErrGRPCRequestTooLarge)
ErrTooManyRequests = Error(ErrGRPCRequestTooManyRequests)
ErrRootUserNotExist = Error(ErrGRPCRootUserNotExist)
ErrRootRoleNotExist = Error(ErrGRPCRootRoleNotExist)
ErrUserAlreadyExist = Error(ErrGRPCUserAlreadyExist)
ErrUserEmpty = Error(ErrGRPCUserEmpty)
ErrUserNotFound = Error(ErrGRPCUserNotFound)
ErrRoleAlreadyExist = Error(ErrGRPCRoleAlreadyExist)
ErrRoleNotFound = Error(ErrGRPCRoleNotFound)
ErrRoleEmpty = Error(ErrGRPCRoleEmpty)
ErrAuthFailed = Error(ErrGRPCAuthFailed)
ErrPermissionDenied = Error(ErrGRPCPermissionDenied)
ErrRoleNotGranted = Error(ErrGRPCRoleNotGranted)
ErrPermissionNotGranted = Error(ErrGRPCPermissionNotGranted)
ErrAuthNotEnabled = Error(ErrGRPCAuthNotEnabled)
ErrInvalidAuthToken = Error(ErrGRPCInvalidAuthToken)
ErrInvalidAuthMgmt = Error(ErrGRPCInvalidAuthMgmt)
ErrNoLeader = Error(ErrGRPCNoLeader)
ErrNotLeader = Error(ErrGRPCNotLeader)
ErrLeaderChanged = Error(ErrGRPCLeaderChanged)
ErrNotCapable = Error(ErrGRPCNotCapable)
ErrStopped = Error(ErrGRPCStopped)
ErrTimeout = Error(ErrGRPCTimeout)
ErrTimeoutDueToLeaderFail = Error(ErrGRPCTimeoutDueToLeaderFail)
ErrTimeoutDueToConnectionLost = Error(ErrGRPCTimeoutDueToConnectionLost)
ErrUnhealthy = Error(ErrGRPCUnhealthy)
ErrCorrupt = Error(ErrGRPCCorrupt)
ErrBadLeaderTransferee = Error(ErrGRPCBadLeaderTransferee)
)
// EtcdError defines gRPC server errors.
// (https://github.com/grpc/grpc-go/blob/master/rpc_util.go#L319-L323)
type EtcdError struct {
code codes.Code
desc string
}
// Code returns grpc/codes.Code.
// TODO: define clientv3/codes.Code.
func (e EtcdError) Code() codes.Code {
return e.code
}
func (e EtcdError) Error() string {
return e.desc
}
func Error(err error) error {
if err == nil {
return nil
}
verr, ok := errStringToError[ErrorDesc(err)]
if !ok { // not gRPC error
return err
}
ev, ok := status.FromError(verr)
var desc string
if ok {
desc = ev.Message()
} else {
desc = verr.Error()
}
return EtcdError{code: ev.Code(), desc: desc}
}
func ErrorDesc(err error) string {
if s, ok := status.FromError(err); ok {
return s.Message()
}
return err.Error()
}
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