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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/tendermint/libs/common"
)
// Get Tendermint status including node info, pubkey, latest block
// hash, app hash, block height and time.
//
// ```shell
// curl 'localhost:26657/status'
// ```
//
// ```go
// client := client.NewHTTP("tcp://0.0.0.0:26657", "/websocket")
// result, err := client.Status()
// ```
//
// > The above command returns JSON structured like this:
//
// ```json
//{
// "jsonrpc": "2.0",
// "id": "",
// "result": {
// "node_info": {
// "id": "562dd7f579f0ecee8c94a11a3c1e378c1876f433",
// "listen_addr": "192.168.1.2:26656",
// "network": "test-chain-I6zScH",
// "version": "0.19.0",
// "channels": "4020212223303800",
// "moniker": "Ethans-MacBook-Pro.local",
// "other": [
// "amino_version=0.9.8",
// "p2p_version=0.5.0",
// "consensus_version=v1/0.2.2",
// "rpc_version=0.7.0/3",
// "tx_index=on",
// "rpc_addr=tcp://0.0.0.0:26657"
// ]
// },
// "sync_info": {
// "latest_block_hash": "2D4D7055BE685E3CB2410603C92AD37AE557AC59",
// "latest_app_hash": "0000000000000000",
// "latest_block_height": 231,
// "latest_block_time": "2018-04-27T23:18:08.459766485-04:00",
// "catching_up": false
// },
// "validator_info": {
// "address": "5875562FF0FFDECC895C20E32FC14988952E99E7",
// "pub_key": {
// "type": "tendermint/PubKeyEd25519",
// "value": "PpDJRUrLG2RgFqYYjawfn/AcAgacSXpLFrmfYYQnuzE="
// },
// "voting_power": 10
// }
// }
//}
// ```
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)
var votingPower int64
if val := validatorAtHeight(latestHeight); val != nil {
votingPower = val.VotingPower
}
result := &ctypes.ResultStatus{
NodeInfo: p2pSwitch.NodeInfo(),
SyncInfo: ctypes.SyncInfo{
LatestBlockHash: latestBlockHash,
LatestAppHash: latestAppHash,
LatestBlockHeight: latestHeight,
LatestBlockTime: latestBlockTime,
CatchingUp: consensusReactor.FastSync(),
},
ValidatorInfo: ctypes.ValidatorInfo{
Address: pubKey.Address(),
PubKey: pubKey,
VotingPower: 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
}