func DecodeTx(tx *btc.Tx) (s string, missinginp bool, totinp, totout uint64, e error) {
s += fmt.Sprintln("Transaction details (for your information):")
s += fmt.Sprintln(len(tx.TxIn), "Input(s):")
for i := range tx.TxIn {
s += fmt.Sprintf(" %3d %s", i, tx.TxIn[i].Input.String())
var po *btc.TxOut
inpid := btc.NewUint256(tx.TxIn[i].Input.Hash[:])
if txinmem, ok := network.TransactionsToSend[inpid.BIdx()]; ok {
s += fmt.Sprint(" mempool")
if int(tx.TxIn[i].Input.Vout) >= len(txinmem.TxOut) {
s += fmt.Sprintf(" - Vout TOO BIG (%d/%d)!", int(tx.TxIn[i].Input.Vout), len(txinmem.TxOut))
} else {
po = txinmem.TxOut[tx.TxIn[i].Input.Vout]
}
} else {
po, _ = common.BlockChain.Unspent.UnspentGet(&tx.TxIn[i].Input)
if po != nil {
s += fmt.Sprintf("%8d", po.BlockHeight)
}
}
if po != nil {
ok := script.VerifyTxScript(tx.TxIn[i].ScriptSig, po.Pk_script, i, tx, true)
if !ok {
s += fmt.Sprintln("\nERROR: The transacion does not have a valid signature.")
e = errors.New("Invalid signature")
return
}
totinp += po.Value
ads := "???"
if ad := btc.NewAddrFromPkScript(po.Pk_script, common.Testnet); ad != nil {
ads = ad.String()
}
s += fmt.Sprintf(" %15.8f BTC @ %s\n", float64(po.Value)/1e8, ads)
} else {
s += fmt.Sprintln(" - UNKNOWN INPUT")
missinginp = true
}
}
s += fmt.Sprintln(len(tx.TxOut), "Output(s):")
for i := range tx.TxOut {
totout += tx.TxOut[i].Value
adr := btc.NewAddrFromPkScript(tx.TxOut[i].Pk_script, common.Testnet)
if adr != nil {
s += fmt.Sprintf(" %15.8f BTC to adr %s\n", float64(tx.TxOut[i].Value)/1e8, adr.String())
} else {
s += fmt.Sprintf(" %15.8f BTC to scr %s\n", float64(tx.TxOut[i].Value)/1e8, hex.EncodeToString(tx.TxOut[i].Pk_script))
}
}
if missinginp {
s += fmt.Sprintln("WARNING: There are missing inputs and we cannot calc input BTC amount.")
s += fmt.Sprintln("If there is somethign wrong with this transaction, you can loose money...")
} else {
s += fmt.Sprintf("All OK: %.8f BTC in -> %.8f BTC out, with %.8f BTC fee\n", float64(totinp)/1e8,
float64(totout)/1e8, float64(totinp-totout)/1e8)
}
return
}
func output_tx_xml(w http.ResponseWriter, id string) {
txid := btc.NewUint256FromString(id)
w.Write([]byte("<tx>"))
fmt.Fprint(w, "<id>", id, "</id>")
if t2s, ok := network.TransactionsToSend[txid.BIdx()]; ok {
w.Write([]byte("<status>OK</status>"))
tx := t2s.Tx
w.Write([]byte("<inputs>"))
for i := range tx.TxIn {
w.Write([]byte("<input>"))
var po *btc.TxOut
inpid := btc.NewUint256(tx.TxIn[i].Input.Hash[:])
if txinmem, ok := network.TransactionsToSend[inpid.BIdx()]; ok {
if int(tx.TxIn[i].Input.Vout) < len(txinmem.TxOut) {
po = txinmem.TxOut[tx.TxIn[i].Input.Vout]
}
} else {
po, _ = common.BlockChain.Unspent.UnspentGet(&tx.TxIn[i].Input)
}
if po != nil {
ok := script.VerifyTxScript(tx.TxIn[i].ScriptSig, po.Pk_script, i, tx, true)
if !ok {
w.Write([]byte("<status>Script FAILED</status>"))
} else {
w.Write([]byte("<status>OK</status>"))
}
fmt.Fprint(w, "<value>", po.Value, "</value>")
ads := "???"
if ad := btc.NewAddrFromPkScript(po.Pk_script, common.Testnet); ad != nil {
ads = ad.String()
}
fmt.Fprint(w, "<addr>", ads, "</addr>")
fmt.Fprint(w, "<block>", po.BlockHeight, "</block>")
} else {
w.Write([]byte("<status>UNKNOWN INPUT</status>"))
}
w.Write([]byte("</input>"))
}
w.Write([]byte("</inputs>"))
w.Write([]byte("<outputs>"))
for i := range tx.TxOut {
w.Write([]byte("<output>"))
fmt.Fprint(w, "<value>", tx.TxOut[i].Value, "</value>")
adr := btc.NewAddrFromPkScript(tx.TxOut[i].Pk_script, common.Testnet)
if adr != nil {
fmt.Fprint(w, "<addr>", adr.String(), "</addr>")
} else {
fmt.Fprint(w, "<addr>", "scr:"+hex.EncodeToString(tx.TxOut[i].Pk_script), "</addr>")
}
w.Write([]byte("</output>"))
}
w.Write([]byte("</outputs>"))
} else {
w.Write([]byte("<status>Not found</status>"))
}
w.Write([]byte("</tx>"))
}
// get BtcAddr from pk_script
func addr_from_pkscr(scr []byte) *btc.BtcAddr {
if litecoin {
return ltc.NewAddrFromPkScript(scr, testnet)
} else {
return btc.NewAddrFromPkScript(scr, testnet)
}
}
func NewAddrFromPkScript(scr []byte, testnet bool) (ad *btc.BtcAddr) {
ad = btc.NewAddrFromPkScript(scr, testnet)
if ad != nil && ad.Version == btc.AddrVerPubkey(false) {
ad.Version = LTC_ADDR_VERSION
}
return
}
func BlocksMiner(bl []byte) (string, int) {
for i, m := range MinerIds {
if MinedBy(bl, m.Tag) {
return m.Name, i
}
}
bt, _ := btc.NewBlock(bl)
cbtx, _ := btc.NewTx(bl[bt.TxOffset:])
adr := btc.NewAddrFromPkScript(cbtx.TxOut[0].Pk_script, Testnet)
if adr != nil {
return adr.String(), -1
}
return "", -1
}
func main() {
fmt.Println("Gocoin FetchBal version", lib.Version)
fmt.Println("NOTE: This tool is deprecated. Use balio instead.")
proxy = os.Getenv("TOR")
if proxy != "" {
fmt.Println("Using Tor at", proxy)
http.DefaultClient.Transport = &http.Transport{Dial: dials5}
} else {
fmt.Println("WARNING: not using Tor (setup TOR variable, if you want)")
}
if len(os.Args) < 2 {
print_help()
return
}
var addrs []*btc.BtcAddr
if len(os.Args) == 2 {
fi, er := os.Stat(os.Args[1])
if er == nil && fi.Size() > 10 && !fi.IsDir() {
wal := wallet.NewWallet(os.Args[1])
if wal != nil {
fmt.Println("Found", len(wal.Addrs), "address(es) in", wal.FileName)
addrs = wal.Addrs
}
}
}
if len(addrs) == 0 {
for i := 1; i < len(os.Args); i++ {
a, e := btc.NewAddrFromString(os.Args[i])
if e != nil {
println(os.Args[i], ": ", e.Error())
return
} else {
addrs = append(addrs, a)
}
}
}
if len(addrs) == 0 {
print_help()
return
}
url := "http://blockchain.info/unspent?active="
for i := range addrs {
if i > 0 {
url += "|"
}
url += addrs[i].String()
}
var sum, outcnt uint64
r, er := http.Get(url)
//println(url)
if er == nil && r.StatusCode == 200 {
defer r.Body.Close()
c, _ := ioutil.ReadAll(r.Body)
var r restype
er = json.Unmarshal(c[:], &r)
if er == nil {
os.RemoveAll("balance/")
os.Mkdir("balance/", 0700)
unsp, _ := os.Create("balance/unspent.txt")
for i := 0; i < len(r.Unspent_outputs); i++ {
pkscr, _ := hex.DecodeString(r.Unspent_outputs[i].Script)
b58adr := "???"
if pkscr != nil {
ba := btc.NewAddrFromPkScript(pkscr, false)
if ba != nil {
b58adr = ba.String()
}
}
txidlsb, _ := hex.DecodeString(r.Unspent_outputs[i].Tx_hash)
if txidlsb != nil {
txid := btc.NewUint256(txidlsb)
rawtx := utils.GetTxFromWeb(txid)
if rawtx != nil {
ioutil.WriteFile("balance/"+txid.String()+".tx", rawtx, 0666)
fmt.Fprintf(unsp, "%s-%03d # %.8f @ %s, %d confs\n",
txid.String(), r.Unspent_outputs[i].Tx_output_n,
float64(r.Unspent_outputs[i].Value)/1e8,
b58adr, r.Unspent_outputs[i].Confirmations)
sum += r.Unspent_outputs[i].Value
outcnt++
} else {
fmt.Printf(" - cannot fetch %s-%03d\n", txid.String(), r.Unspent_outputs[i].Tx_output_n)
}
}
}
unsp.Close()
if outcnt > 0 {
fmt.Printf("Total %.8f BTC in %d unspent outputs.\n", float64(sum)/1e8, outcnt)
fmt.Println("The data has been stored in 'balance' folder.")
fmt.Println("Use it with the wallet app to spend any of it.")
} else {
fmt.Println("The fateched balance is empty.")
}
} else {
fmt.Println("Unspent json.Unmarshal", er.Error())
}
} else {
if er != nil {
fmt.Println("Unspent ", er.Error())
} else {
fmt.Println("Unspent HTTP StatusCode", r.StatusCode)
}
}
}
// This function is only used when loading UTXO database
func newUTXO(tx *chain.QdbRec) (update_wallet bool) {
var c, spen_exp []byte
var rec *chain.QdbTxOut
var h160 [20]byte
check_next_address:
for idx, out := range tx.Outs {
if out == nil {
continue
}
// check for stealth
if len(StealthAdCache) > 0 && idx > 0 {
if rec = tx.Outs[idx-1]; rec == nil {
goto not_stealth
}
if !rec.IsStealthIdx() || !out.IsP2KH() {
goto not_stealth
}
for _, ad := range StealthAdCache {
if sa := ad.addr.StealthAddr; sa.CheckNonce(rec.PKScr[3:40]) {
c = btc.StealthDH(rec.PKScr[7:40], ad.d[:])
spen_exp = btc.DeriveNextPublic(sa.SpendKeys[0][:], c)
btc.RimpHash(spen_exp, h160[:])
if bytes.Equal(out.PKScr[3:23], h160[:]) {
uo := new(chain.OneUnspentTx)
uo.TxPrevOut.Hash = tx.TxID
uo.TxPrevOut.Vout = uint32(idx)
uo.Value = out.Value
uo.MinedAt = tx.InBlock
uo.BtcAddr = btc.NewAddrFromHash160(h160[:], btc.AddrVerPubkey(common.CFG.Testnet))
uo.FixDestString()
uo.BtcAddr.StealthAddr = sa
uo.BtcAddr.Extra = ad.addr.Extra
uo.StealthC = c
carec := CachedAddrs[ad.h160]
carec.Value += uo.Value
CacheUnspent[carec.CacheIndex].AllUnspentTx = append(CacheUnspent[carec.CacheIndex].AllUnspentTx, uo)
CacheUnspentIdx[uo.TxPrevOut.UIdx()] = &OneCachedUnspentIdx{Index: carec.CacheIndex, Record: uo}
if carec.InWallet {
update_wallet = true
}
continue check_next_address // it it was setalth, cannot be enythign else
}
}
}
}
not_stealth:
// Extract hash160 from pkscript
adr := btc.NewAddrFromPkScript(out.PKScr, common.Testnet)
if adr != nil {
if carec, ok := CachedAddrs[adr.Hash160]; ok {
carec.Value += out.Value
utxo := new(chain.OneUnspentTx)
utxo.TxPrevOut.Hash = tx.TxID
utxo.TxPrevOut.Vout = uint32(idx)
utxo.Value = out.Value
utxo.MinedAt = tx.InBlock
utxo.BtcAddr = CacheUnspent[carec.CacheIndex].BtcAddr
CacheUnspent[carec.CacheIndex].AllUnspentTx = append(CacheUnspent[carec.CacheIndex].AllUnspentTx, utxo)
CacheUnspentIdx[utxo.TxPrevOut.UIdx()] = &OneCachedUnspentIdx{Index: carec.CacheIndex, Record: utxo}
if carec.InWallet {
update_wallet = true
}
}
}
}
return
}