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status.go
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status.go
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package core
import (
"bytes"
"time"
ctypes "github.com/tendermint/tendermint/rpc/core/types"
sm "github.com/tendermint/tendermint/state"
"github.com/tendermint/tendermint/types"
cmn "github.com/tendermint/tmlibs/common"
)
// Get Tendermint status including node info, pubkey, latest block
// hash, app hash, block height and time.
//
// ```shell
// curl 'localhost:46657/status'
// ```
//
// ```go
// client := client.NewHTTP("tcp://0.0.0.0:46657", "/websocket")
// result, err := client.Status()
// ```
//
// > The above command returns JSON structured like this:
//
// ```json
// {
// "result": {
// "syncing": false,
// "latest_block_time": "2017-12-07T18:19:47.617Z",
// "latest_block_height": 6,
// "latest_app_hash": "",
// "latest_block_hash": "A63D0C3307DEDCCFCC82ED411AE9108B70B29E02",
// "pub_key": {
// "data": "8C9A68070CBE33F9C445862BA1E9D96A75CEB68C0CF6ADD3652D07DCAC5D0380",
// "type": "ed25519"
// },
// "node_info": {
// "other": [
// "wire_version=0.7.2",
// "p2p_version=0.5.0",
// "consensus_version=v1/0.2.2",
// "rpc_version=0.7.0/3",
// "tx_index=on",
// "rpc_addr=tcp://0.0.0.0:46657"
// ],
// "version": "0.13.0-14ccc8b",
// "listen_addr": "10.0.2.15:46656",
// "remote_addr": "",
// "network": "test-chain-qhVCa2",
// "moniker": "vagrant-ubuntu-trusty-64",
// "pub_key": "844981FE99ABB19F7816F2D5E94E8A74276AB1153760A7799E925C75401856C6",
// "validator_status": {
// "voting_power": 10
// }
// }
// },
// "id": "",
// "jsonrpc": "2.0"
// }
// ```
func Status() (*ctypes.ResultStatus, error) {
latestHeight := blockStore.Height()
var (
latestBlockMeta *types.BlockMeta
latestBlockHash cmn.HexBytes
latestAppHash cmn.HexBytes
latestBlockTimeNano int64
)
if latestHeight != 0 {
latestBlockMeta = blockStore.LoadBlockMeta(latestHeight)
latestBlockHash = latestBlockMeta.BlockID.Hash
latestAppHash = latestBlockMeta.Header.AppHash
latestBlockTimeNano = latestBlockMeta.Header.Time.UnixNano()
}
latestBlockTime := time.Unix(0, latestBlockTimeNano)
result := &ctypes.ResultStatus{
NodeInfo: p2pSwitch.NodeInfo(),
PubKey: pubKey,
LatestBlockHash: latestBlockHash,
LatestAppHash: latestAppHash,
LatestBlockHeight: latestHeight,
LatestBlockTime: latestBlockTime,
Syncing: consensusReactor.FastSync(),
}
// add ValidatorStatus if node is a validator
if val := validatorAtHeight(latestHeight); val != nil {
result.ValidatorStatus = ctypes.ValidatorStatus{
VotingPower: val.VotingPower,
}
}
return result, nil
}
func validatorAtHeight(h int64) *types.Validator {
lastBlockHeight, vals := consensusState.GetValidators()
privValAddress := pubKey.Address()
// if we're still at height h, search in the current validator set
if lastBlockHeight == h {
for _, val := range vals {
if bytes.Equal(val.Address, privValAddress) {
return val
}
}
}
// if we've moved to the next height, retrieve the validator set from DB
if lastBlockHeight > h {
vals, err := sm.LoadValidators(stateDB, h)
if err != nil {
// should not happen
return nil
}
_, val := vals.GetByAddress(privValAddress)
return val
}
return nil
}