func execute_test_tx(t *testing.T, tv *testvector) bool {
if len(tv.inps) == 0 {
t.Error("Vector has no inputs")
return false
}
rd, er := hex.DecodeString(tv.tx)
if er != nil {
t.Error(er.Error())
return false
}
tx, _ := btc.NewTx(rd)
if tx == nil {
t.Error("Canot decode tx")
return false
}
tx.Size = uint32(len(rd))
ha := btc.Sha2Sum(rd)
tx.Hash = btc.NewUint256(ha[:])
if skip_broken_tests(tx) {
return false
}
oks := 0
for i := range tx.TxIn {
var j int
for j = range tv.inps {
if bytes.Equal(tx.TxIn[i].Input.Hash[:], tv.inps[j].txid.Hash[:]) &&
tx.TxIn[i].Input.Vout == uint32(tv.inps[j].vout) {
break
}
}
if j >= len(tv.inps) {
t.Error("Matching input not found")
continue
}
pk, er := btc.DecodeScript(tv.inps[j].pkscr)
if er != nil {
t.Error(er.Error())
continue
}
var ss []byte
if tv.inps[j].vout >= 0 {
ss = tx.TxIn[i].ScriptSig
}
if VerifyTxScript(ss, pk, i, tx, tv.p2sh) {
oks++
}
}
return oks == len(tx.TxIn)
}
func TestScritpsInvalid(t *testing.T) {
var vecs [][]string
DBG_ERR = false
dat, er := ioutil.ReadFile("../test/script_invalid.json")
if er != nil {
t.Error(er.Error())
return
}
er = json.Unmarshal(dat, &vecs)
if er != nil {
t.Error(er.Error())
return
}
tot := 0
for i := range vecs {
if len(vecs[i]) >= 2 {
tot++
s1, e := btc.DecodeScript(vecs[i][0])
if e != nil {
t.Error(tot, "error A in", vecs[i][0], "->", vecs[i][1])
return
}
s2, e := btc.DecodeScript(vecs[i][1])
if e != nil {
t.Error(tot, "error B in", vecs[i][0], "->", vecs[i][1])
return
}
res := VerifyTxScript(s1, s2, 0, dummy_tx, true)
if res {
t.Error(tot, "VerifyTxScript NOT failed in", vecs[i][0], "->", vecs[i][1])
return
}
}
}
}
// Download (and re-assemble) raw transaction from blockexplorer.com
func GetTxFromExplorer(txid *btc.Uint256) ([]byte, []byte) {
url := "http://blockexplorer.com/rawtx/" + txid.String()
r, er := http.Get(url)
if er == nil && r.StatusCode == 200 {
defer r.Body.Close()
c, _ := ioutil.ReadAll(r.Body)
var txx onetx
er = json.Unmarshal(c[:], &txx)
if er == nil {
// This part looks weird, but this is how I solved seq=FFFFFFFF, if the field not present:
for i := range txx.In {
txx.In[i].Sequence = 0xffffffff
}
json.Unmarshal(c[:], &txx)
// ... end of the weird solution
tx := new(btc.Tx)
tx.Version = txx.Ver
tx.TxIn = make([]*btc.TxIn, len(txx.In))
for i := range txx.In {
tx.TxIn[i] = new(btc.TxIn)
tx.TxIn[i].Input.Hash = btc.NewUint256FromString(txx.In[i].Prev_out.Hash).Hash
tx.TxIn[i].Input.Vout = txx.In[i].Prev_out.N
if txx.In[i].Prev_out.N == 0xffffffff &&
txx.In[i].Prev_out.Hash == "0000000000000000000000000000000000000000000000000000000000000000" {
tx.TxIn[i].ScriptSig, _ = hex.DecodeString(txx.In[i].Coinbase)
} else {
tx.TxIn[i].ScriptSig, _ = btc.DecodeScript(txx.In[i].ScriptSig)
}
tx.TxIn[i].Sequence = txx.In[i].Sequence
}
tx.TxOut = make([]*btc.TxOut, len(txx.Out))
for i := range txx.Out {
am, er := btc.StringToSatoshis(txx.Out[i].Value)
if er != nil {
fmt.Println("Incorrect BTC amount", txx.Out[i].Value, er.Error())
return nil, nil
}
tx.TxOut[i] = new(btc.TxOut)
tx.TxOut[i].Value = am
tx.TxOut[i].Pk_script, _ = btc.DecodeScript(txx.Out[i].ScriptPubKey)
}
tx.Lock_time = txx.Lock_time
rawtx := tx.Serialize()
if txx.Size != uint(len(rawtx)) {
fmt.Printf("Transaction size mismatch: %d expexted, %d decoded\n", txx.Size, len(rawtx))
return nil, rawtx
}
curid := btc.NewSha2Hash(rawtx)
if !curid.Equal(txid) {
fmt.Println("The downloaded transaction does not match its ID.", txid.String())
return nil, rawtx
}
return rawtx, rawtx
} else {
fmt.Println("json.Unmarshal:", er.Error())
}
} else {
if er != nil {
fmt.Println("http.Get:", er.Error())
} else {
fmt.Println("StatusCode=", r.StatusCode)
}
}
return nil, nil
}