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package core
import (
"bytes"
"time"
cmn "github.com/tendermint/tendermint/libs/common"
"github.com/tendermint/tendermint/p2p"
ctypes "github.com/tendermint/tendermint/rpc/core/types"
rpctypes "github.com/tendermint/tendermint/rpc/lib/types"
sm "github.com/tendermint/tendermint/state"
"github.com/tendermint/tendermint/types"
)
// Status returns Tendermint status including node info, pubkey, latest block
// hash, app hash, block height and time.
// More: https://tendermint.com/rpc/#/Info/status
func Status(ctx *rpctypes.Context) (*ctypes.ResultStatus, error) {
var latestHeight int64
if consensusReactor.FastSync() {
latestHeight = blockStore.Height()
} else {
latestHeight = consensusState.GetLastHeight()
}
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: p2pTransport.NodeInfo().(p2p.DefaultNodeInfo),
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 {
privValAddress := pubKey.Address()
// If we're still at height h, search in the current validator set.
lastBlockHeight, vals := consensusState.GetValidators()
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 {
return nil // should not happen
}
_, val := vals.GetByAddress(privValAddress)
return val
}
return nil
}