import (
"math/big"
- "github.com/bytom/blockchain/query"
- "github.com/bytom/consensus/difficulty"
- chainjson "github.com/bytom/encoding/json"
- "github.com/bytom/protocol/bc"
- "github.com/bytom/protocol/bc/types"
+ "gopkg.in/fatih/set.v0"
+
+ "github.com/bytom/bytom/blockchain/query"
+ "github.com/bytom/bytom/consensus/difficulty"
+ chainjson "github.com/bytom/bytom/encoding/json"
+ "github.com/bytom/bytom/errors"
+ "github.com/bytom/bytom/protocol/bc"
+ "github.com/bytom/bytom/protocol/bc/types"
)
// return best block hash
Transactions []*BlockTx `json:"transactions"`
}
-// return block by hash
+// return block by hash/height
func (a *API) getBlock(ins BlockReq) Response {
- var err error
- block := &types.Block{}
- if len(ins.BlockHash) == 32 {
- b32 := [32]byte{}
- copy(b32[:], ins.BlockHash)
- hash := bc.NewHash(b32)
- block, err = a.chain.GetBlockByHash(&hash)
- } else {
- block, err = a.chain.GetBlockByHeight(ins.BlockHeight)
- }
+ block, err := a.getBlockHelper(ins)
if err != nil {
return NewErrorResponse(err)
}
return NewSuccessResponse(resp)
}
+// GetRawBlockResp is resp struct for getRawBlock API
+type GetRawBlockResp struct {
+ RawBlock *types.Block `json:"raw_block"`
+ TransactionStatus *bc.TransactionStatus `json:"transaction_status"`
+}
+
+func (a *API) getRawBlock(ins BlockReq) Response {
+ block, err := a.getBlockHelper(ins)
+ if err != nil {
+ return NewErrorResponse(err)
+ }
+
+ blockHash := block.Hash()
+ txStatus, err := a.chain.GetTransactionStatus(&blockHash)
+ if err != nil {
+ return NewErrorResponse(err)
+ }
+
+ resp := GetRawBlockResp{
+ RawBlock: block,
+ TransactionStatus: txStatus,
+ }
+ return NewSuccessResponse(resp)
+}
+
// GetBlockHeaderResp is resp struct for getBlockHeader API
type GetBlockHeaderResp struct {
BlockHeader *types.BlockHeader `json:"block_header"`
}
func (a *API) getBlockHeader(ins BlockReq) Response {
- var err error
- block := &types.Block{}
- if len(ins.BlockHash) == 32 {
- b32 := [32]byte{}
- copy(b32[:], ins.BlockHash)
- hash := bc.NewHash(b32)
- block, err = a.chain.GetBlockByHash(&hash)
- } else {
- block, err = a.chain.GetBlockByHeight(ins.BlockHeight)
- }
+ block, err := a.getBlockHelper(ins)
if err != nil {
return NewErrorResponse(err)
}
return NewSuccessResponse(resp)
}
+func (a *API) getBlockHelper(ins BlockReq) (*types.Block, error) {
+ if len(ins.BlockHash) == 32 {
+ hash := hexBytesToHash(ins.BlockHash)
+ return a.chain.GetBlockByHash(&hash)
+ } else {
+ return a.chain.GetBlockByHeight(ins.BlockHeight)
+ }
+}
+
+func hexBytesToHash(hexBytes chainjson.HexBytes) bc.Hash {
+ b32 := [32]byte{}
+ copy(b32[:], hexBytes)
+ return bc.NewHash(b32)
+}
+
// GetDifficultyResp is resp struct for getDifficulty API
type GetDifficultyResp struct {
BlockHash *bc.Hash `json:"hash"`
Difficulty string `json:"difficulty"`
}
-func (a *API) getDifficulty(ins *BlockReq) Response {
- var err error
- block := &types.Block{}
-
- if len(ins.BlockHash) == 32 && ins.BlockHash != nil {
- b32 := [32]byte{}
- copy(b32[:], ins.BlockHash)
- hash := bc.NewHash(b32)
- block, err = a.chain.GetBlockByHash(&hash)
- } else if ins.BlockHeight > 0 {
- block, err = a.chain.GetBlockByHeight(ins.BlockHeight)
- } else {
- hash := a.chain.BestBlockHash()
- block, err = a.chain.GetBlockByHash(hash)
- }
-
+func (a *API) getDifficulty(ins BlockReq) Response {
+ block, err := a.getBlockHelper(ins)
if err != nil {
return NewErrorResponse(err)
}
}
func (a *API) getHashRate(ins BlockReq) Response {
- var err error
- block := &types.Block{}
-
- if len(ins.BlockHash) == 32 && ins.BlockHash != nil {
- b32 := [32]byte{}
- copy(b32[:], ins.BlockHash)
- hash := bc.NewHash(b32)
- block, err = a.chain.GetBlockByHash(&hash)
- } else if ins.BlockHeight > 0 {
- block, err = a.chain.GetBlockByHeight(ins.BlockHeight)
- } else {
- hash := a.chain.BestBlockHash()
- block, err = a.chain.GetBlockByHash(hash)
+ if len(ins.BlockHash) != 32 && len(ins.BlockHash) != 0 {
+ err := errors.New("Block hash format error.")
+ return NewErrorResponse(err)
+ }
+ if ins.BlockHeight == 0 {
+ ins.BlockHeight = a.chain.BestBlockHeight()
}
+ block, err := a.getBlockHelper(ins)
if err != nil {
return NewErrorResponse(err)
}
}
diffTime := block.Timestamp - preBlock.Timestamp
+ if preBlock.Timestamp >= block.Timestamp {
+ diffTime = 1
+ }
hashCount := difficulty.CalcWork(block.Bits)
hashRate := new(big.Int).Div(hashCount, big.NewInt(int64(diffTime)))
}
return NewSuccessResponse(resp)
}
+
+// MerkleBlockReq is used to handle getTxOutProof req
+type MerkleBlockReq struct {
+ TxIDs []chainjson.HexBytes `json:"tx_ids"`
+ BlockHash chainjson.HexBytes `json:"block_hash"`
+}
+
+// GetMerkleBlockResp is resp struct for GetTxOutProof API
+type GetMerkleBlockResp struct {
+ BlockHeader types.BlockHeader `json:"block_header"`
+ TxHashes []*bc.Hash `json:"tx_hashes"`
+ StatusHashes []*bc.Hash `json:"status_hashes"`
+ Flags []uint32 `json:"flags"`
+ MatchedTxIDs []*bc.Hash `json:"matched_tx_ids"`
+}
+
+func (a *API) getMerkleProof(ins MerkleBlockReq) Response {
+ blockReq := BlockReq{BlockHash: ins.BlockHash}
+ block, err := a.getBlockHelper(blockReq)
+ if err != nil {
+ return NewErrorResponse(err)
+ }
+
+ matchedTxs := getMatchedTx(block.Transactions, ins.TxIDs)
+ var matchedTxIDs []*bc.Hash
+ for _, tx := range matchedTxs {
+ matchedTxIDs = append(matchedTxIDs, &tx.ID)
+ }
+
+ hashes, compactFlags := types.GetTxMerkleTreeProof(block.Transactions, matchedTxs)
+ flags := make([]uint32, len(compactFlags))
+ for i, flag := range compactFlags {
+ flags[i] = uint32(flag)
+ }
+
+ blockHash := block.Hash()
+ statuses, err := a.chain.GetTransactionStatus(&blockHash)
+ if err != nil {
+ return NewErrorResponse(err)
+ }
+
+ statusHashes := types.GetStatusMerkleTreeProof(statuses.VerifyStatus, compactFlags)
+
+ resp := &GetMerkleBlockResp{
+ BlockHeader: block.BlockHeader,
+ TxHashes: hashes,
+ StatusHashes: statusHashes,
+ Flags: flags,
+ MatchedTxIDs: matchedTxIDs,
+ }
+ return NewSuccessResponse(resp)
+}
+
+func getMatchedTx(txs []*types.Tx, filterTxIDs []chainjson.HexBytes) []*types.Tx {
+ txIDSet := set.New()
+ for _, txID := range filterTxIDs {
+ hash := hexBytesToHash(txID)
+ txIDSet.Add(hash.String())
+ }
+
+ var matchedTxs []*types.Tx
+ for _, tx := range txs {
+ hashStr := tx.ID.String()
+ if txIDSet.Has(hashStr) {
+ matchedTxs = append(matchedTxs, tx)
+ }
+ }
+ return matchedTxs
+}
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