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// Copyright 2018 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 etcdserverpb
import (
"fmt"
"strings"
proto "github.com/golang/protobuf/proto"
)
// InternalRaftStringer implements custom proto Stringer:
// redact password, replace value fields with value_size fields.
type InternalRaftStringer struct {
Request *InternalRaftRequest
}
func (as *InternalRaftStringer) String() string {
switch {
case as.Request.LeaseGrant != nil:
return fmt.Sprintf("header:<%s> lease_grant:<ttl:%d-second id:%016x>",
as.Request.Header.String(),
as.Request.LeaseGrant.TTL,
as.Request.LeaseGrant.ID,
)
case as.Request.LeaseRevoke != nil:
return fmt.Sprintf("header:<%s> lease_revoke:<id:%016x>",
as.Request.Header.String(),
as.Request.LeaseRevoke.ID,
)
case as.Request.Authenticate != nil:
return fmt.Sprintf("header:<%s> authenticate:<name:%s simple_token:%s>",
as.Request.Header.String(),
as.Request.Authenticate.Name,
as.Request.Authenticate.SimpleToken,
)
case as.Request.AuthUserAdd != nil:
return fmt.Sprintf("header:<%s> auth_user_add:<name:%s>",
as.Request.Header.String(),
as.Request.AuthUserAdd.Name,
)
case as.Request.AuthUserChangePassword != nil:
return fmt.Sprintf("header:<%s> auth_user_change_password:<name:%s>",
as.Request.Header.String(),
as.Request.AuthUserChangePassword.Name,
)
case as.Request.Put != nil:
return fmt.Sprintf("header:<%s> put:<%s>",
as.Request.Header.String(),
NewLoggablePutRequest(as.Request.Put).String(),
)
case as.Request.Txn != nil:
return fmt.Sprintf("header:<%s> txn:<%s>",
as.Request.Header.String(),
NewLoggableTxnRequest(as.Request.Txn).String(),
)
default:
// nothing to redact
}
return as.Request.String()
}
// txnRequestStringer implements a custom proto String to replace value bytes fields with value size
// fields in any nested txn and put operations.
type txnRequestStringer struct {
Request *TxnRequest
}
func NewLoggableTxnRequest(request *TxnRequest) *txnRequestStringer {
return &txnRequestStringer{request}
}
func (as *txnRequestStringer) String() string {
var compare []string
for _, c := range as.Request.Compare {
switch cv := c.TargetUnion.(type) {
case *Compare_Value:
compare = append(compare, newLoggableValueCompare(c, cv).String())
default:
// nothing to redact
compare = append(compare, c.String())
}
}
var success []string
for _, s := range as.Request.Success {
success = append(success, newLoggableRequestOp(s).String())
}
var failure []string
for _, f := range as.Request.Failure {
failure = append(failure, newLoggableRequestOp(f).String())
}
return fmt.Sprintf("compare:<%s> success:<%s> failure:<%s>",
strings.Join(compare, " "),
strings.Join(success, " "),
strings.Join(failure, " "),
)
}
// requestOpStringer implements a custom proto String to replace value bytes fields with value
// size fields in any nested txn and put operations.
type requestOpStringer struct {
Op *RequestOp
}
func newLoggableRequestOp(op *RequestOp) *requestOpStringer {
return &requestOpStringer{op}
}
func (as *requestOpStringer) String() string {
switch op := as.Op.Request.(type) {
case *RequestOp_RequestPut:
return fmt.Sprintf("request_put:<%s>", NewLoggablePutRequest(op.RequestPut).String())
case *RequestOp_RequestTxn:
return fmt.Sprintf("request_txn:<%s>", NewLoggableTxnRequest(op.RequestTxn).String())
default:
// nothing to redact
}
return as.Op.String()
}
// loggableValueCompare implements a custom proto String for Compare.Value union member types to
// replace the value bytes field with a value size field.
// To preserve proto encoding of the key and range_end bytes, a faked out proto type is used here.
type loggableValueCompare struct {
Result Compare_CompareResult `protobuf:"varint,1,opt,name=result,proto3,enum=etcdserverpb.Compare_CompareResult"`
Target Compare_CompareTarget `protobuf:"varint,2,opt,name=target,proto3,enum=etcdserverpb.Compare_CompareTarget"`
Key []byte `protobuf:"bytes,3,opt,name=key,proto3"`
ValueSize int64 `protobuf:"varint,7,opt,name=value_size,proto3"`
RangeEnd []byte `protobuf:"bytes,64,opt,name=range_end,proto3"`
}
func newLoggableValueCompare(c *Compare, cv *Compare_Value) *loggableValueCompare {
return &loggableValueCompare{
c.Result,
c.Target,
c.Key,
int64(len(cv.Value)),
c.RangeEnd,
}
}
func (m *loggableValueCompare) Reset() { *m = loggableValueCompare{} }
func (m *loggableValueCompare) String() string { return proto.CompactTextString(m) }
func (*loggableValueCompare) ProtoMessage() {}
// loggablePutRequest implements a custom proto String to replace value bytes field with a value
// size field.
// To preserve proto encoding of the key bytes, a faked out proto type is used here.
type loggablePutRequest struct {
Key []byte `protobuf:"bytes,1,opt,name=key,proto3"`
ValueSize int64 `protobuf:"varint,2,opt,name=value_size,proto3"`
Lease int64 `protobuf:"varint,3,opt,name=lease,proto3"`
PrevKv bool `protobuf:"varint,4,opt,name=prev_kv,proto3"`
IgnoreValue bool `protobuf:"varint,5,opt,name=ignore_value,proto3"`
IgnoreLease bool `protobuf:"varint,6,opt,name=ignore_lease,proto3"`
}
func NewLoggablePutRequest(request *PutRequest) *loggablePutRequest {
return &loggablePutRequest{
request.Key,
int64(len(request.Value)),
request.Lease,
request.PrevKv,
request.IgnoreValue,
request.IgnoreLease,
}
}
func (m *loggablePutRequest) Reset() { *m = loggablePutRequest{} }
func (m *loggablePutRequest) String() string { return proto.CompactTextString(m) }
func (*loggablePutRequest) ProtoMessage() {}
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