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bc.go
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bc.go
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// Copyright (c) 2019 IoTeX Foundation
// This is an alpha (internal) release and is not suitable for production. This source code is provided 'as is' and no
// warranties are given as to title or non-infringement, merchantability or fitness for purpose and, to the extent
// permitted by law, all liability for your use of the code is disclaimed. This source code is governed by Apache
// License 2.0 that can be found in the LICENSE file.
package bc
import (
"context"
"strconv"
"github.com/grpc-ecosystem/go-grpc-middleware/util/metautils"
"github.com/spf13/cobra"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"google.golang.org/protobuf/proto"
"github.com/iotexproject/iotex-proto/golang/iotexapi"
"github.com/iotexproject/iotex-proto/golang/iotextypes"
"github.com/iotexproject/iotex-core/ioctl/config"
"github.com/iotexproject/iotex-core/ioctl/output"
"github.com/iotexproject/iotex-core/ioctl/util"
)
// Multi-language support
var (
bcCmdShorts = map[config.Language]string{
config.English: "Deal with block chain of IoTeX blockchain",
config.Chinese: "处理IoTeX区块链上的区块",
}
bcCmdUses = map[config.Language]string{
config.English: "bc",
config.Chinese: "bc",
}
flagEndpointUsages = map[config.Language]string{
config.English: "set endpoint for once",
config.Chinese: "一次设置端点",
}
flagInsecureUsages = map[config.Language]string{
config.English: "insecure connection for once",
config.Chinese: "一次不安全的连接",
}
)
// BCCmd represents the bc(block chain) command
var BCCmd = &cobra.Command{
Use: config.TranslateInLang(bcCmdUses, config.UILanguage),
Short: config.TranslateInLang(bcCmdShorts, config.UILanguage),
}
func init() {
BCCmd.AddCommand(bcBlockCmd)
BCCmd.AddCommand(bcInfoCmd)
BCCmd.AddCommand(bcBucketListCmd)
BCCmd.AddCommand(bcBucketCmd)
BCCmd.PersistentFlags().StringVar(&config.ReadConfig.Endpoint, "endpoint",
config.ReadConfig.Endpoint, config.TranslateInLang(flagEndpointUsages, config.UILanguage))
BCCmd.PersistentFlags().BoolVar(&config.Insecure, "insecure", config.Insecure,
config.TranslateInLang(flagInsecureUsages, config.UILanguage))
}
// GetChainMeta gets block chain metadata
func GetChainMeta() (*iotextypes.ChainMeta, error) {
conn, err := util.ConnectToEndpoint(config.ReadConfig.SecureConnect && !config.Insecure)
if err != nil {
return nil, output.NewError(output.NetworkError, "failed to connect to endpoint", err)
}
defer conn.Close()
cli := iotexapi.NewAPIServiceClient(conn)
request := iotexapi.GetChainMetaRequest{}
ctx := context.Background()
jwtMD, err := util.JwtAuth()
if err == nil {
ctx = metautils.NiceMD(jwtMD).ToOutgoing(ctx)
}
response, err := cli.GetChainMeta(ctx, &request)
if err != nil {
sta, ok := status.FromError(err)
if ok {
return nil, output.NewError(output.APIError, sta.Message(), nil)
}
return nil, output.NewError(output.NetworkError, "failed to invoke GetChainMeta api", err)
}
return response.ChainMeta, nil
}
// GetEpochMeta gets blockchain epoch meta
func GetEpochMeta(epochNum uint64) (*iotexapi.GetEpochMetaResponse, error) {
conn, err := util.ConnectToEndpoint(config.ReadConfig.SecureConnect && !config.Insecure)
if err != nil {
return nil, output.NewError(output.NetworkError, "failed to connect to endpoint", err)
}
defer conn.Close()
cli := iotexapi.NewAPIServiceClient(conn)
request := &iotexapi.GetEpochMetaRequest{EpochNumber: epochNum}
ctx := context.Background()
jwtMD, err := util.JwtAuth()
if err == nil {
ctx = metautils.NiceMD(jwtMD).ToOutgoing(ctx)
}
response, err := cli.GetEpochMeta(ctx, request)
if err != nil {
sta, ok := status.FromError(err)
if ok {
return nil, output.NewError(output.APIError, sta.Message(), nil)
}
return nil, output.NewError(output.NetworkError, "failed to invoke GetEpochMeta api", err)
}
return response, nil
}
// GetProbationList gets probation list
func GetProbationList(epochNum uint64, epochStartHeight uint64) (*iotexapi.ReadStateResponse, error) {
conn, err := util.ConnectToEndpoint(config.ReadConfig.SecureConnect && !config.Insecure)
if err != nil {
return nil, output.NewError(output.NetworkError, "failed to connect to endpoint", err)
}
defer conn.Close()
cli := iotexapi.NewAPIServiceClient(conn)
request := &iotexapi.ReadStateRequest{
ProtocolID: []byte("poll"),
MethodName: []byte("ProbationListByEpoch"),
Arguments: [][]byte{[]byte(strconv.FormatUint(epochNum, 10))},
Height: strconv.FormatUint(epochStartHeight, 10),
}
ctx := context.Background()
jwtMD, err := util.JwtAuth()
if err == nil {
ctx = metautils.NiceMD(jwtMD).ToOutgoing(ctx)
}
response, err := cli.ReadState(ctx, request)
if err != nil {
sta, ok := status.FromError(err)
if ok && sta.Code() == codes.NotFound {
return nil, nil
} else if ok {
return nil, output.NewError(output.APIError, sta.Message(), nil)
}
return nil, output.NewError(output.NetworkError, "failed to invoke ReadState api", err)
}
return response, nil
}
// GetBucketList get bucket list
func GetBucketList(
methodName iotexapi.ReadStakingDataMethod_Name,
readStakingDataRequest *iotexapi.ReadStakingDataRequest,
) (*iotextypes.VoteBucketList, error) {
conn, err := util.ConnectToEndpoint(config.ReadConfig.SecureConnect && !config.Insecure)
if err != nil {
return nil, output.NewError(output.NetworkError, "failed to connect to endpoint", err)
}
defer conn.Close()
cli := iotexapi.NewAPIServiceClient(conn)
method := &iotexapi.ReadStakingDataMethod{Method: methodName}
methodData, err := proto.Marshal(method)
if err != nil {
return nil, output.NewError(output.SerializationError, "failed to marshal read staking data method", err)
}
requestData, err := proto.Marshal(readStakingDataRequest)
if err != nil {
return nil, output.NewError(output.SerializationError, "failed to marshal read staking data request", err)
}
request := &iotexapi.ReadStateRequest{
ProtocolID: []byte("staking"),
MethodName: methodData,
Arguments: [][]byte{requestData},
}
ctx := context.Background()
jwtMD, err := util.JwtAuth()
if err == nil {
ctx = metautils.NiceMD(jwtMD).ToOutgoing(ctx)
}
response, err := cli.ReadState(ctx, request)
if err != nil {
sta, ok := status.FromError(err)
if ok {
return nil, output.NewError(output.APIError, sta.Message(), nil)
}
return nil, output.NewError(output.NetworkError, "failed to invoke ReadState api", err)
}
bucketlist := iotextypes.VoteBucketList{}
if err := proto.Unmarshal(response.Data, &bucketlist); err != nil {
return nil, output.NewError(output.SerializationError, "failed to unmarshal response", err)
}
return &bucketlist, nil
}