You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
407 lines
11 KiB
407 lines
11 KiB
package core
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
cmn "github.com/tendermint/tendermint/libs/common"
|
|
ctypes "github.com/tendermint/tendermint/rpc/core/types"
|
|
sm "github.com/tendermint/tendermint/state"
|
|
"github.com/tendermint/tendermint/types"
|
|
)
|
|
|
|
// Get block headers for minHeight <= height <= maxHeight.
|
|
// Block headers are returned in descending order (highest first).
|
|
//
|
|
// ```shell
|
|
// curl 'localhost:26657/blockchain?minHeight=10&maxHeight=10'
|
|
// ```
|
|
//
|
|
// ```go
|
|
// client := client.NewHTTP("tcp://0.0.0.0:26657", "/websocket")
|
|
// err := client.Start()
|
|
// if err != nil {
|
|
// // handle error
|
|
// }
|
|
// defer client.Stop()
|
|
// info, err := client.BlockchainInfo(10, 10)
|
|
// ```
|
|
//
|
|
// > The above command returns JSON structured like this:
|
|
//
|
|
// ```json
|
|
// {
|
|
// "error": "",
|
|
// "result": {
|
|
// "block_metas": [
|
|
// {
|
|
// "header": {
|
|
// "app_hash": "",
|
|
// "chain_id": "test-chain-6UTNIN",
|
|
// "height": "10",
|
|
// "time": "2017-05-29T15:05:53.877Z",
|
|
// "num_txs": "0",
|
|
// "last_block_id": {
|
|
// "parts": {
|
|
// "hash": "3C78F00658E06744A88F24FF97A0A5011139F34A",
|
|
// "total": "1"
|
|
// },
|
|
// "hash": "F70588DAB36BDA5A953D548A16F7D48C6C2DFD78"
|
|
// },
|
|
// "last_commit_hash": "F31CC4282E50B3F2A58D763D233D76F26D26CABE",
|
|
// "data_hash": "",
|
|
// "validators_hash": "9365FC80F234C967BD233F5A3E2AB2F1E4B0E5AA"
|
|
// },
|
|
// "block_id": {
|
|
// "parts": {
|
|
// "hash": "277A4DBEF91483A18B85F2F5677ABF9694DFA40F",
|
|
// "total": "1"
|
|
// },
|
|
// "hash": "96B1D2F2D201BA4BC383EB8224139DB1294944E5"
|
|
// }
|
|
// }
|
|
// ],
|
|
// "last_height": "5493"
|
|
// },
|
|
// "id": "",
|
|
// "jsonrpc": "2.0"
|
|
// }
|
|
// ```
|
|
//
|
|
// <aside class="notice">Returns at most 20 items.</aside>
|
|
func BlockchainInfo(minHeight, maxHeight int64) (*ctypes.ResultBlockchainInfo, error) {
|
|
|
|
// maximum 20 block metas
|
|
const limit int64 = 20
|
|
var err error
|
|
minHeight, maxHeight, err = filterMinMax(blockStore.Height(), minHeight, maxHeight, limit)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
logger.Debug("BlockchainInfoHandler", "maxHeight", maxHeight, "minHeight", minHeight)
|
|
|
|
blockMetas := []*types.BlockMeta{}
|
|
for height := maxHeight; height >= minHeight; height-- {
|
|
blockMeta := blockStore.LoadBlockMeta(height)
|
|
blockMetas = append(blockMetas, blockMeta)
|
|
}
|
|
|
|
return &ctypes.ResultBlockchainInfo{
|
|
LastHeight: blockStore.Height(),
|
|
BlockMetas: blockMetas}, nil
|
|
}
|
|
|
|
// error if either min or max are negative or min < max
|
|
// if 0, use 1 for min, latest block height for max
|
|
// enforce limit.
|
|
// error if min > max
|
|
func filterMinMax(height, min, max, limit int64) (int64, int64, error) {
|
|
// filter negatives
|
|
if min < 0 || max < 0 {
|
|
return min, max, fmt.Errorf("heights must be non-negative")
|
|
}
|
|
|
|
// adjust for default values
|
|
if min == 0 {
|
|
min = 1
|
|
}
|
|
if max == 0 {
|
|
max = height
|
|
}
|
|
|
|
// limit max to the height
|
|
max = cmn.MinInt64(height, max)
|
|
|
|
// limit min to within `limit` of max
|
|
// so the total number of blocks returned will be `limit`
|
|
min = cmn.MaxInt64(min, max-limit+1)
|
|
|
|
if min > max {
|
|
return min, max, fmt.Errorf("min height %d can't be greater than max height %d", min, max)
|
|
}
|
|
return min, max, nil
|
|
}
|
|
|
|
// Get block at a given height.
|
|
// If no height is provided, it will fetch the latest block.
|
|
//
|
|
// ```shell
|
|
// curl 'localhost:26657/block?height=10'
|
|
// ```
|
|
//
|
|
// ```go
|
|
// client := client.NewHTTP("tcp://0.0.0.0:26657", "/websocket")
|
|
// err := client.Start()
|
|
// if err != nil {
|
|
// // handle error
|
|
// }
|
|
// defer client.Stop()
|
|
// info, err := client.Block(10)
|
|
// ```
|
|
//
|
|
// > The above command returns JSON structured like this:
|
|
//
|
|
// ```json
|
|
// {
|
|
// "error": "",
|
|
// "result": {
|
|
// "block": {
|
|
// "last_commit": {
|
|
// "precommits": [
|
|
// {
|
|
// "signature": {
|
|
// "data": "12C0D8893B8A38224488DC1DE6270DF76BB1A5E9DB1C68577706A6A97C6EC34FFD12339183D5CA8BC2F46148773823DE905B7F6F5862FD564038BB7AE03BF50D",
|
|
// "type": "ed25519"
|
|
// },
|
|
// "block_id": {
|
|
// "parts": {
|
|
// "hash": "3C78F00658E06744A88F24FF97A0A5011139F34A",
|
|
// "total": "1"
|
|
// },
|
|
// "hash": "F70588DAB36BDA5A953D548A16F7D48C6C2DFD78"
|
|
// },
|
|
// "type": "2",
|
|
// "round": "0",
|
|
// "height": "9",
|
|
// "validator_index": "0",
|
|
// "validator_address": "E89A51D60F68385E09E716D353373B11F8FACD62"
|
|
// }
|
|
// ],
|
|
// "blockID": {
|
|
// "parts": {
|
|
// "hash": "3C78F00658E06744A88F24FF97A0A5011139F34A",
|
|
// "total": "1"
|
|
// },
|
|
// "hash": "F70588DAB36BDA5A953D548A16F7D48C6C2DFD78"
|
|
// }
|
|
// },
|
|
// "data": {
|
|
// "txs": []
|
|
// },
|
|
// "header": {
|
|
// "app_hash": "",
|
|
// "chain_id": "test-chain-6UTNIN",
|
|
// "height": "10",
|
|
// "time": "2017-05-29T15:05:53.877Z",
|
|
// "num_txs": "0",
|
|
// "last_block_id": {
|
|
// "parts": {
|
|
// "hash": "3C78F00658E06744A88F24FF97A0A5011139F34A",
|
|
// "total": "1"
|
|
// },
|
|
// "hash": "F70588DAB36BDA5A953D548A16F7D48C6C2DFD78"
|
|
// },
|
|
// "last_commit_hash": "F31CC4282E50B3F2A58D763D233D76F26D26CABE",
|
|
// "data_hash": "",
|
|
// "validators_hash": "9365FC80F234C967BD233F5A3E2AB2F1E4B0E5AA"
|
|
// }
|
|
// },
|
|
// "block_meta": {
|
|
// "header": {
|
|
// "app_hash": "",
|
|
// "chain_id": "test-chain-6UTNIN",
|
|
// "height": "10",
|
|
// "time": "2017-05-29T15:05:53.877Z",
|
|
// "num_txs": "0",
|
|
// "last_block_id": {
|
|
// "parts": {
|
|
// "hash": "3C78F00658E06744A88F24FF97A0A5011139F34A",
|
|
// "total": "1"
|
|
// },
|
|
// "hash": "F70588DAB36BDA5A953D548A16F7D48C6C2DFD78"
|
|
// },
|
|
// "last_commit_hash": "F31CC4282E50B3F2A58D763D233D76F26D26CABE",
|
|
// "data_hash": "",
|
|
// "validators_hash": "9365FC80F234C967BD233F5A3E2AB2F1E4B0E5AA"
|
|
// },
|
|
// "block_id": {
|
|
// "parts": {
|
|
// "hash": "277A4DBEF91483A18B85F2F5677ABF9694DFA40F",
|
|
// "total": "1"
|
|
// },
|
|
// "hash": "96B1D2F2D201BA4BC383EB8224139DB1294944E5"
|
|
// }
|
|
// }
|
|
// },
|
|
// "id": "",
|
|
// "jsonrpc": "2.0"
|
|
// }
|
|
// ```
|
|
func Block(heightPtr *int64) (*ctypes.ResultBlock, error) {
|
|
storeHeight := blockStore.Height()
|
|
height, err := getHeight(storeHeight, heightPtr)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
blockMeta := blockStore.LoadBlockMeta(height)
|
|
block := blockStore.LoadBlock(height)
|
|
return &ctypes.ResultBlock{BlockMeta: blockMeta, Block: block}, nil
|
|
}
|
|
|
|
// Get block commit at a given height.
|
|
// If no height is provided, it will fetch the commit for the latest block.
|
|
//
|
|
// ```shell
|
|
// curl 'localhost:26657/commit?height=11'
|
|
// ```
|
|
//
|
|
// ```go
|
|
// client := client.NewHTTP("tcp://0.0.0.0:26657", "/websocket")
|
|
// err := client.Start()
|
|
// if err != nil {
|
|
// // handle error
|
|
// }
|
|
// defer client.Stop()
|
|
// info, err := client.Commit(11)
|
|
// ```
|
|
//
|
|
// > The above command returns JSON structured like this:
|
|
//
|
|
// ```json
|
|
// {
|
|
// "error": "",
|
|
// "result": {
|
|
// "canonical": true,
|
|
// "commit": {
|
|
// "precommits": [
|
|
// {
|
|
// "signature": {
|
|
// "data": "00970429FEC652E9E21D106A90AE8C5413759A7488775CEF4A3F44DC46C7F9D941070E4FBE9ED54DF247FA3983359A0C3A238D61DE55C75C9116D72ABC9CF50F",
|
|
// "type": "ed25519"
|
|
// },
|
|
// "block_id": {
|
|
// "parts": {
|
|
// "hash": "9E37CBF266BC044A779E09D81C456E653B89E006",
|
|
// "total": "1"
|
|
// },
|
|
// "hash": "CC6E861E31CA4334E9888381B4A9137D1458AB6A"
|
|
// },
|
|
// "type": "2",
|
|
// "round": "0",
|
|
// "height": "11",
|
|
// "validator_index": "0",
|
|
// "validator_address": "E89A51D60F68385E09E716D353373B11F8FACD62"
|
|
// }
|
|
// ],
|
|
// "blockID": {
|
|
// "parts": {
|
|
// "hash": "9E37CBF266BC044A779E09D81C456E653B89E006",
|
|
// "total": "1"
|
|
// },
|
|
// "hash": "CC6E861E31CA4334E9888381B4A9137D1458AB6A"
|
|
// }
|
|
// },
|
|
// "header": {
|
|
// "app_hash": "",
|
|
// "chain_id": "test-chain-6UTNIN",
|
|
// "height": "11",
|
|
// "time": "2017-05-29T15:05:54.893Z",
|
|
// "num_txs": "0",
|
|
// "last_block_id": {
|
|
// "parts": {
|
|
// "hash": "277A4DBEF91483A18B85F2F5677ABF9694DFA40F",
|
|
// "total": "1"
|
|
// },
|
|
// "hash": "96B1D2F2D201BA4BC383EB8224139DB1294944E5"
|
|
// },
|
|
// "last_commit_hash": "3CE0C9727CE524BA9CB7C91E28F08E2B94001087",
|
|
// "data_hash": "",
|
|
// "validators_hash": "9365FC80F234C967BD233F5A3E2AB2F1E4B0E5AA"
|
|
// }
|
|
// },
|
|
// "id": "",
|
|
// "jsonrpc": "2.0"
|
|
// }
|
|
// ```
|
|
func Commit(heightPtr *int64) (*ctypes.ResultCommit, error) {
|
|
storeHeight := blockStore.Height()
|
|
height, err := getHeight(storeHeight, heightPtr)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
header := blockStore.LoadBlockMeta(height).Header
|
|
|
|
// If the next block has not been committed yet,
|
|
// use a non-canonical commit
|
|
if height == storeHeight {
|
|
commit := blockStore.LoadSeenCommit(height)
|
|
return ctypes.NewResultCommit(&header, commit, false), nil
|
|
}
|
|
|
|
// Return the canonical commit (comes from the block at height+1)
|
|
commit := blockStore.LoadBlockCommit(height)
|
|
return ctypes.NewResultCommit(&header, commit, true), nil
|
|
}
|
|
|
|
// BlockResults gets ABCIResults at a given height.
|
|
// If no height is provided, it will fetch results for the latest block.
|
|
//
|
|
// Results are for the height of the block containing the txs.
|
|
// Thus response.results[5] is the results of executing getBlock(h).Txs[5]
|
|
//
|
|
// ```shell
|
|
// curl 'localhost:26657/block_results?height=10'
|
|
// ```
|
|
//
|
|
// ```go
|
|
// client := client.NewHTTP("tcp://0.0.0.0:26657", "/websocket")
|
|
// err := client.Start()
|
|
// if err != nil {
|
|
// // handle error
|
|
// }
|
|
// defer client.Stop()
|
|
// info, err := client.BlockResults(10)
|
|
// ```
|
|
//
|
|
//
|
|
// > The above command returns JSON structured like this:
|
|
//
|
|
// ```json
|
|
// {
|
|
// "height": "10",
|
|
// "results": [
|
|
// {
|
|
// "code": "0",
|
|
// "data": "CAFE00F00D"
|
|
// },
|
|
// {
|
|
// "code": "102",
|
|
// "data": ""
|
|
// }
|
|
// ]
|
|
// }
|
|
// ```
|
|
func BlockResults(heightPtr *int64) (*ctypes.ResultBlockResults, error) {
|
|
storeHeight := blockStore.Height()
|
|
height, err := getHeight(storeHeight, heightPtr)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// load the results
|
|
results, err := sm.LoadABCIResponses(stateDB, height)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
res := &ctypes.ResultBlockResults{
|
|
Height: height,
|
|
Results: results,
|
|
}
|
|
return res, nil
|
|
}
|
|
|
|
func getHeight(currentHeight int64, heightPtr *int64) (int64, error) {
|
|
if heightPtr != nil {
|
|
height := *heightPtr
|
|
if height <= 0 {
|
|
return 0, fmt.Errorf("Height must be greater than 0")
|
|
}
|
|
if height > currentHeight {
|
|
return 0, fmt.Errorf("Height must be less than or equal to the current blockchain height")
|
|
}
|
|
return height, nil
|
|
}
|
|
return currentHeight, nil
|
|
}
|