func getTransactionByID(gate *daemon.Gateway) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
if r.Method != "GET" {
wh.Error405(w, "")
return
}
txid := r.FormValue("txid")
if txid == "" {
wh.Error400(w, "txid is empty")
return
}
h, err := cipher.SHA256FromHex(txid)
if err != nil {
wh.Error400(w, err.Error())
return
}
tx, err := gate.V.GetTransaction(h)
if err != nil {
wh.Error400(w, err.Error())
return
}
if tx == nil {
wh.Error404(w, "not found")
return
}
resTx := visor.TransactionResult{
Transaction: visor.NewReadableTransaction(tx),
Status: tx.Status,
}
wh.SendOr404(w, &resTx)
}
}
func getRawTx(gate *daemon.Gateway) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
if r.Method != "GET" {
wh.Error405(w, "")
return
}
txid := r.FormValue("txid")
if txid == "" {
wh.Error400(w, "txid is empty")
return
}
h, err := cipher.SHA256FromHex(txid)
if err != nil {
wh.Error400(w, err.Error())
return
}
tx, err := gate.V.GetTransaction(h)
if err != nil {
wh.Error400(w, err.Error())
return
}
d := tx.Txn.Serialize()
wh.SendOr404(w, hex.EncodeToString(d))
return
}
}
func getUxOutByID(gateway *daemon.Gateway) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
if r.Method != "GET" {
wh.Error405(w, "")
return
}
uxid := r.FormValue("uxid")
if uxid == "" {
wh.Error400(w, "uxid is empty")
return
}
id, err := cipher.SHA256FromHex(uxid)
if err != nil {
wh.Error400(w, err.Error())
return
}
uxout, err := gateway.GetUxOutByID(id)
if err != nil {
wh.Error400(w, err.Error())
return
}
if uxout == nil {
wh.Error404(w, "not found")
return
}
wh.SendOr404(w, uxout)
}
}
func transactionCMD() gcli.Command {
name := "transaction"
return gcli.Command{
Name: name,
Usage: "Show detail info of specific transaction",
ArgsUsage: "[transaction id]",
OnUsageError: onCommandUsageError(name),
Action: func(c *gcli.Context) error {
txid := c.Args().First()
if txid == "" {
return errors.New("txid is empty")
}
// validate the txid
_, err := cipher.SHA256FromHex(txid)
if err != nil {
return errors.New("error txid")
}
tx, err := getTransactionByID(txid)
if err != nil {
return err
}
v, err := json.MarshalIndent(tx, "", " ")
if err != nil {
return errors.New("invalid tx result")
}
fmt.Println(string(v))
return nil
},
}
// Commands = append(Commands, cmd)
}
// get block by hash or seq
// method: GET
// url: /block?hash=[:hash] or /block?seq[:seq]
// params: hash or seq, should only specify one filter.
func getBlock(gate *daemon.Gateway) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
if r.Method != "GET" {
wh.Error405(w, "")
return
}
hash := r.FormValue("hash")
seq := r.FormValue("seq")
var b *coin.Block
switch {
case hash == "" && seq == "":
wh.Error400(w, "should specify one filter, hash or seq")
return
case hash != "" && seq != "":
wh.Error400(w, "should only specify one filter, hash or seq")
return
case hash != "":
h, err := cipher.SHA256FromHex(hash)
if err != nil {
wh.Error400(w, err.Error())
return
}
b = gate.V.GetBlockByHash(h)
case seq != "":
uSeq, err := strconv.ParseUint(seq, 10, 64)
if err != nil {
wh.Error400(w, err.Error())
return
}
b = gate.V.GetBlockBySeq(uSeq)
}
if b == nil {
wh.SendOr404(w, nil)
return
}
wh.SendOr404(w, visor.NewReadableBlock(b))
}
}
func getTransactionHandler(req Request, gateway Gatewayer) Response {
var txid []string
if err := req.DecodeParams(&txid); err != nil {
logger.Critical("decode params failed:%v", err)
return makeErrorResponse(errCodeInvalidParams, errMsgInvalidParams)
}
if len(txid) != 1 {
return makeErrorResponse(errCodeInvalidParams, errMsgInvalidParams)
}
t, err := cipher.SHA256FromHex(txid[0])
if err != nil {
logger.Critical("decode txid err: %v", err)
return makeErrorResponse(errCodeInvalidParams, "invalid transaction hash")
}
txn, err := gateway.GetTransaction(t)
if err != nil {
logger.Debugf("%v", err)
return makeErrorResponse(errCodeInternalError, errMsgInternalError)
}
return makeSuccessResponse(req.ID, TxnResult{txn})
}
func TransactionFromJSON(str string) (coin.Transaction, error) {
var TxIn TransactionJSON
err := json.Unmarshal([]byte(str), TxIn)
if err != nil {
errors.New("cannot deserialize")
}
var tx coin.Transaction
tx.Sigs = make([]cipher.Sig, len(TxIn.Sigs))
tx.In = make([]cipher.SHA256, len(TxIn.In))
tx.Out = make([]coin.TransactionOutput, len(TxIn.Out))
for i, _ := range tx.Sigs {
sig2, err := cipher.SigFromHex(TxIn.Sigs[i])
if err != nil {
return coin.Transaction{}, errors.New("invalid signature")
}
tx.Sigs[i] = sig2
}
for i, _ := range tx.In {
hash, err := cipher.SHA256FromHex(TxIn.In[i])
if err != nil {
return coin.Transaction{}, errors.New("invalid signature")
}
tx.In[i] = hash
}
for i, _ := range tx.Out {
out, err := TransactionOutputFromJSON(TxIn.Out[i])
if err != nil {
return coin.Transaction{}, errors.New("invalid output")
}
tx.Out[i] = out
}
tx.Length = uint32(tx.Size())
tx.Type = 0
hash, err := cipher.SHA256FromHex(TxIn.Hash)
if err != nil {
return coin.Transaction{}, errors.New("invalid hash")
}
if hash != tx.Hash() {
}
InnerHash, err := cipher.SHA256FromHex(TxIn.Hash)
if InnerHash != tx.InnerHash {
return coin.Transaction{}, errors.New("inner hash")
}
err = tx.Verify()
if err != nil {
return coin.Transaction{}, errors.New("transaction failed verification")
}
return tx, nil
}