/
bcblock.go
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/
bcblock.go
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// Copyright (c) 2019 IoTeX
// 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"
"fmt"
"strconv"
"github.com/iotexproject/iotex-core/ioctl"
"github.com/grpc-ecosystem/go-grpc-middleware/util/metautils"
"github.com/spf13/cobra"
"google.golang.org/grpc/status"
"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"
"github.com/iotexproject/iotex-core/ioctl/validator"
)
// Multi-language support
var (
bcBlockCmdShorts = map[config.Language]string{
config.English: "Get block from block chain",
config.Chinese: "获取IoTeX区块链中的区块",
}
bcBlockCmdUses = map[config.Language]string{
config.English: "block [HEIGHT|HASH] [--verbose]",
config.Chinese: "block [高度|哈希] [--verbose]",
}
flagVerboseUsages = map[config.Language]string{
config.English: "returns block info and all actions within this block.",
config.Chinese: "返回区块信息和区块内的所有事务",
}
)
// NewBCBlockCmd represents the bc block command
func NewBCBlockCmd(client ioctl.Client) *cobra.Command {
bcBlockCmdUse, _ := client.SelectTranslation(bcBlockCmdUses)
bcBlockCmdShort, _ := client.SelectTranslation(bcBlockCmdShorts)
var verbose bool
var endpoint string
var insecure bool
cmd := &cobra.Command{
Use: bcBlockCmdUse,
Short: bcBlockCmdShort,
Args: cobra.MaximumNArgs(2),
RunE: func(cmd *cobra.Command, args []string) error {
cmd.SilenceUsage = true
var height uint64
var err error
isHeight := true
apiServiceClient, err := client.APIServiceClient(ioctl.APIServiceConfig{
Endpoint: endpoint,
Insecure: insecure,
})
if err != nil {
return err
}
if len(args) != 0 {
height, err = strconv.ParseUint(args[0], 10, 64)
if err != nil {
isHeight = false
} else if err = validator.ValidatePositiveNumber(int64(height)); err != nil {
return output.NewError(output.ValidationError, "invalid height", err)
}
} else {
chainMetaResponse, err := apiServiceClient.GetChainMeta(context.Background(), &iotexapi.GetChainMetaRequest{})
if err != nil {
return err
}
height = chainMetaResponse.ChainMeta.Height
}
var blockMeta *iotextypes.BlockMeta
var blocksInfo []*iotexapi.BlockInfo
if isHeight {
blockMeta, err = getBlockMetaByHeight(&apiServiceClient, height)
} else {
blockMeta, err = getBlockMetaByHash(&apiServiceClient, args[0])
}
if err != nil {
return output.NewError(0, "failed to get block meta", err)
}
blockInfoMessage := blockMessage{Node: config.ReadConfig.Endpoint, Block: blockMeta, Actions: nil}
if verbose {
blocksInfo, err = getActionInfoWithinBlock(&apiServiceClient, blockMeta.Height, uint64(blockMeta.NumActions))
if err != nil {
return output.NewError(0, "failed to get actions info", err)
}
for _, ele := range blocksInfo {
for _, item := range ele.Block.Body.Actions {
actionInfo := actionInfo{
Version: item.Core.Version,
Nonce: item.Core.Nonce,
GasLimit: item.Core.GasLimit,
GasPrice: item.Core.GasPrice,
SenderPubKey: item.SenderPubKey,
Signature: item.Signature,
}
blockInfoMessage.Actions = append(blockInfoMessage.Actions, actionInfo)
}
}
}
fmt.Println(blockInfoMessage.String())
return nil
},
}
flagVerboseUsage, _ := client.SelectTranslation(flagVerboseUsages)
flagEndpointUsage, _ := client.SelectTranslation(flagEndpointUsages)
flagInsecureUsage, _ := client.SelectTranslation(flagInsecureUsages)
cmd.PersistentFlags().BoolVar(&verbose, "verbose", false, flagVerboseUsage)
cmd.PersistentFlags().StringVar(&endpoint, "endpoint", client.Config().Endpoint, flagEndpointUsage)
cmd.PersistentFlags().BoolVar(&insecure, "insecure", !client.Config().SecureConnect, flagInsecureUsage)
return cmd
}
type blockMessage struct {
Node string `json:"node"`
Block *iotextypes.BlockMeta `json:"block"`
Actions []actionInfo `json:actions`
}
type actionInfo struct {
Version uint32 `protobuf:"varint,1,opt,name=version,proto3" json:"version,omitempty"`
Nonce uint64 `protobuf:"varint,2,opt,name=nonce,proto3" json:"nonce,omitempty"`
GasLimit uint64 `protobuf:"varint,3,opt,name=gasLimit,proto3" json:"gasLimit,omitempty"`
GasPrice string `protobuf:"bytes,4,opt,name=gasPrice,proto3" json:"gasPrice,omitempty"`
SenderPubKey []byte `protobuf:"bytes,2,opt,name=senderPubKey,proto3" json:"senderPubKey,omitempty"`
Signature []byte `protobuf:"bytes,3,opt,name=signature,proto3" json:"signature,omitempty"`
}
func (m *blockMessage) String() string {
if output.Format == "" {
message := fmt.Sprintf("Blockchain Node: %s\n%s\n%s", m.Node, output.JSONString(m.Block), output.JSONString(m.Actions))
return message
}
return output.FormatString(output.Result, m)
}
// getActionInfoByBlock gets action info by block hash with start index and action count
func getActionInfoWithinBlock(cli *iotexapi.APIServiceClient, height uint64, count uint64) ([]*iotexapi.BlockInfo, error) {
request := iotexapi.GetRawBlocksRequest{StartHeight: height, Count: count, WithReceipts: true}
ctx := context.Background()
jwtMD, err := util.JwtAuth()
if err == nil {
ctx = metautils.NiceMD(jwtMD).ToOutgoing(ctx)
}
response, err := (*cli).GetRawBlocks(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 GetRawBlocks api", err)
}
if len(response.Blocks) == 0 {
return nil, output.NewError(output.APIError, "no actions returned", err)
}
return response.Blocks, nil
}
// getBlockMetaByHeight gets block metadata by height
func getBlockMetaByHeight(cli *iotexapi.APIServiceClient, height uint64) (*iotextypes.BlockMeta, error) {
request := &iotexapi.GetBlockMetasRequest{
Lookup: &iotexapi.GetBlockMetasRequest_ByIndex{
ByIndex: &iotexapi.GetBlockMetasByIndexRequest{
Start: height,
Count: 1,
},
},
}
ctx := context.Background()
jwtMD, err := util.JwtAuth()
if err == nil {
ctx = metautils.NiceMD(jwtMD).ToOutgoing(ctx)
}
response, err := (*cli).GetBlockMetas(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 GetBlockMetas api", err)
}
if len(response.BlkMetas) == 0 {
return nil, output.NewError(output.APIError, "no block returned", err)
}
return response.BlkMetas[0], nil
}
// getBlockMetaByHash gets block metadata by hash
func getBlockMetaByHash(cli *iotexapi.APIServiceClient, hash string) (*iotextypes.BlockMeta, error) {
request := &iotexapi.GetBlockMetasRequest{
Lookup: &iotexapi.GetBlockMetasRequest_ByHash{
ByHash: &iotexapi.GetBlockMetaByHashRequest{BlkHash: hash},
},
}
ctx := context.Background()
jwtMD, err := util.JwtAuth()
if err == nil {
ctx = metautils.NiceMD(jwtMD).ToOutgoing(ctx)
}
response, err := (*cli).GetBlockMetas(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 GetBlockMetas api", err)
}
if len(response.BlkMetas) == 0 {
return nil, output.NewError(output.APIError, "no block returned", err)
}
return response.BlkMetas[0], nil
}