package api
import (
- log "github.com/sirupsen/logrus"
+ "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
return NewSuccessResponse(blockHash)
}
-// return block header by hash
-func (a *API) getBlockHeaderByHash(req struct {
- BlockHash string `json:"block_hash"`
-}) Response {
- hash := bc.Hash{}
- if err := hash.UnmarshalText([]byte(req.BlockHash)); err != nil {
- log.WithField("error", err).Error("Error occurs when transforming string hash to hash struct")
- return NewErrorResponse(err)
- }
- block, err := a.chain.GetBlockByHash(&hash)
- if err != nil {
- log.WithField("error", err).Error("Fail to get block by hash")
- return NewErrorResponse(err)
- }
-
- resp := &BlockHeaderByHeight{
- BlockHeader: &block.BlockHeader,
- Reward: block.Transactions[0].Outputs[0].Amount,
- }
-
- return NewSuccessResponse(resp)
+// return current block count
+func (a *API) getBlockCount() Response {
+ blockHeight := map[string]uint64{"block_count": a.chain.BestBlockHeight()}
+ return NewSuccessResponse(blockHeight)
}
// BlockTx is the tx struct for getBlock func
Inputs []*query.AnnotatedInput `json:"inputs"`
Outputs []*query.AnnotatedOutput `json:"outputs"`
StatusFail bool `json:"status_fail"`
+ MuxID bc.Hash `json:"mux_id"`
}
-// GetBlockReq is used to handle getBlock req
-type GetBlockReq struct {
+// BlockReq is used to handle getBlock req
+type BlockReq struct {
BlockHeight uint64 `json:"block_height"`
BlockHash chainjson.HexBytes `json:"block_hash"`
}
Transactions []*BlockTx `json:"transactions"`
}
-// return block by hash
-func (a *API) getBlock(ins GetBlockReq) 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)
- }
+// return block by hash/height
+func (a *API) getBlock(ins BlockReq) Response {
+ block, err := a.getBlockHelper(ins)
if err != nil {
return NewErrorResponse(err)
}
Timestamp: block.Timestamp,
Nonce: block.Nonce,
Bits: block.Bits,
- Difficulty: difficulty.CompactToBig(block.Bits).String(),
+ Difficulty: difficulty.CalcWork(block.Bits).String(),
TransactionsMerkleRoot: &block.TransactionsMerkleRoot,
TransactionStatusHash: &block.TransactionStatusHash,
Transactions: []*BlockTx{},
}
tx.StatusFail, err = txStatus.GetStatus(i)
if err != nil {
- NewSuccessResponse(resp)
+ return NewSuccessResponse(resp)
+ }
+
+ resOutID := orig.ResultIds[0]
+ resOut, ok := orig.Entries[*resOutID].(*bc.Output)
+ if ok {
+ tx.MuxID = *resOut.Source.Ref
+ } else {
+ resRetire, _ := orig.Entries[*resOutID].(*bc.Retirement)
+ tx.MuxID = *resRetire.Source.Ref
}
for i := range orig.Inputs {
return NewSuccessResponse(resp)
}
-// return current block count
-func (a *API) getBlockCount() Response {
- blockHeight := map[string]uint64{"block_count": a.chain.BestBlockHeight()}
- return NewSuccessResponse(blockHeight)
+// 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"`
+ Reward uint64 `json:"reward"`
+}
+
+func (a *API) getBlockHeader(ins BlockReq) Response {
+ block, err := a.getBlockHelper(ins)
+ if err != nil {
+ return NewErrorResponse(err)
+ }
+
+ resp := &GetBlockHeaderResp{
+ BlockHeader: &block.BlockHeader,
+ Reward: block.Transactions[0].Outputs[0].Amount,
+ }
+ 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"`
+ BlockHeight uint64 `json:"height"`
+ Bits uint64 `json:"bits"`
+ Difficulty string `json:"difficulty"`
+}
+
+func (a *API) getDifficulty(ins BlockReq) Response {
+ block, err := a.getBlockHelper(ins)
+ if err != nil {
+ return NewErrorResponse(err)
+ }
+
+ blockHash := block.Hash()
+ resp := &GetDifficultyResp{
+ BlockHash: &blockHash,
+ BlockHeight: block.Height,
+ Bits: block.Bits,
+ Difficulty: difficulty.CalcWork(block.Bits).String(),
+ }
+ return NewSuccessResponse(resp)
+}
+
+// getHashRateResp is resp struct for getHashRate API
+type getHashRateResp struct {
+ BlockHash *bc.Hash `json:"hash"`
+ BlockHeight uint64 `json:"height"`
+ HashRate uint64 `json:"hash_rate"`
+}
+
+func (a *API) getHashRate(ins BlockReq) Response {
+ 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)
+ }
+
+ preBlock, err := a.chain.GetBlockByHash(&block.PreviousBlockHash)
+ 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)))
+
+ blockHash := block.Hash()
+ resp := &getHashRateResp{
+ BlockHash: &blockHash,
+ BlockHeight: block.Height,
+ HashRate: hashRate.Uint64(),
+ }
+ 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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