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 := btc.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
s += fmt.Sprintf(" %15.8f BTC @ %s\n", float64(po.Value)/1e8,
btc.NewAddrFromPkScript(po.Pk_script, common.Testnet).String())
} 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 := btc.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>")
fmt.Fprint(w, "<addr>", btc.NewAddrFromPkScript(po.Pk_script, common.Testnet).String(), "</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>"))
}
// sign raw transaction with all the keys we have
func dump_raw_tx() {
tx := raw_tx_from_file(*dumptxfn)
if tx == nil {
fmt.Println("ERROR: Cannot decode the raw transaction")
return
}
fmt.Println("Version:", tx.Version)
fmt.Println("TX IN cnt:", len(tx.TxIn))
for i := range tx.TxIn {
fmt.Printf("%4d) %s sl=%d seq=%08x\n", i, tx.TxIn[i].Input.String(),
len(tx.TxIn[i].ScriptSig), tx.TxIn[i].Sequence)
if len(tx.TxIn[i].ScriptSig) > 0 {
dump_sigscript(tx.TxIn[i].ScriptSig)
}
}
fmt.Println("TX OUT cnt:", len(tx.TxOut))
for i := range tx.TxOut {
fmt.Printf("%4d) %20s BTC to ", i, btc.UintToBtc(tx.TxOut[i].Value))
addr := btc.NewAddrFromPkScript(tx.TxOut[i].Pk_script, *testnet)
if addr != nil {
fmt.Println("address", addr.String())
} else {
fmt.Println("Pk_script", hex.EncodeToString(tx.TxOut[i].Pk_script))
}
}
fmt.Println("Lock Time:", tx.Lock_time)
}
// This is called while accepting the block (from the chain's thread)
func TxNotify(idx *btc.TxPrevOut, valpk *btc.TxOut) {
var update_wallet bool
mutex_bal.Lock()
defer mutex_bal.Unlock()
if valpk != nil {
// Extract hash160 from pkscript
adr := btc.NewAddrFromPkScript(valpk.Pk_script, common.Testnet)
if adr == nil {
return // We do not monitor this address
}
if rec, ok := CachedAddrs[adr.Hash160]; ok {
rec.Value += valpk.Value
utxo := new(btc.OneUnspentTx)
utxo.TxPrevOut = *idx
utxo.Value = valpk.Value
utxo.MinedAt = valpk.BlockHeight
utxo.BtcAddr = CacheUnspent[rec.CacheIndex].BtcAddr
CacheUnspent[rec.CacheIndex].AllUnspentTx = append(CacheUnspent[rec.CacheIndex].AllUnspentTx, utxo)
CacheUnspentIdx[po2idx(idx)] = &OneCachedUnspentIdx{Index: rec.CacheIndex, Record: utxo}
if rec.InWallet {
update_wallet = true
}
}
} else {
ii := po2idx(idx)
if ab, present := CacheUnspentIdx[ii]; present {
adrec := CacheUnspent[ab.Index]
//println("removing", idx.String())
rec := CachedAddrs[adrec.BtcAddr.Hash160]
if rec == nil {
panic("rec not found for " + adrec.BtcAddr.String())
}
rec.Value -= ab.Record.Value
if rec.InWallet {
update_wallet = true
}
for j := range adrec.AllUnspentTx {
if adrec.AllUnspentTx[j] == ab.Record {
//println("found it at index", j)
adrec.AllUnspentTx = append(adrec.AllUnspentTx[:j], adrec.AllUnspentTx[j+1:]...)
break
}
}
delete(CacheUnspentIdx, ii)
}
}
if MyWallet != nil && update_wallet {
MyBalance = nil
for i := range MyWallet.Addrs {
rec, _ := CachedAddrs[MyWallet.Addrs[i].Hash160]
MyBalance = append(MyBalance, CacheUnspent[rec.CacheIndex].AllUnspentTx...)
}
sort_and_sum()
BalanceChanged = true
}
}
func load_tx(par string) {
txd, er := hex.DecodeString(par)
if er != nil {
println(er.Error())
}
tx, le := btc.NewTx(txd)
if le != len(txd) {
fmt.Println("WARNING: Tx length mismatch", le, len(txd))
}
txid := btc.NewSha2Hash(txd)
fmt.Println(len(tx.TxIn), "inputs:")
var totinp, totout uint64
var missinginp bool
for i := range tx.TxIn {
fmt.Printf(" %3d %s", i, tx.TxIn[i].Input.String())
po, _ := BlockChain.Unspent.UnspentGet(&tx.TxIn[i].Input)
if po != nil {
totinp += po.Value
fmt.Printf(" %15.8f BTC @ %s\n", float64(po.Value)/1e8,
btc.NewAddrFromPkScript(po.Pk_script, AddrVersion).String())
} else {
fmt.Println(" * no such unspent in the blockchain *")
missinginp = true
}
}
fmt.Println(len(tx.TxOut), "outputs:")
for i := range tx.TxOut {
totout += tx.TxOut[i].Value
fmt.Printf(" %15.8f BTC to %s\n", float64(tx.TxOut[i].Value)/1e8,
btc.NewAddrFromPkScript(tx.TxOut[i].Pk_script, AddrVersion).String())
}
if missinginp {
fmt.Println("WARNING: There are missing inputs, so you cannot calc input BTC amount")
} else {
fmt.Printf("%.8f BTC in -> %.8f BTC out, with %.8f BTC fee\n", float64(totinp)/1e8,
float64(totout)/1e8, float64(totinp-totout)/1e8)
}
TransactionsToSend[txid.Hash] = txd
fmt.Println("Transaction", txid.String(), "stored in the memory pool")
fmt.Println("Execute 'stx " + txid.String() + "' to send it out")
}
// dump hashes to be signed
func dump_hashes_to_sign(tx *btc.Tx) {
for in := range tx.TxIn {
uo := UO(unspentOuts[in])
if uo == nil {
println("Unknown content of unspent input number", in)
os.Exit(1)
}
pubad := btc.NewAddrFromPkScript(uo.Pk_script, *testnet)
hash := tx.SignatureHash(uo.Pk_script, in, btc.SIGHASH_ALL)
fmt.Printf("Input #%d:\n\tHash : %s\n\tAddr : %s\n", in, hex.EncodeToString(hash), pubad.String())
}
}
// This is called while accepting the block (from teh chain's thread)
func TxNotify(idx *btc.TxPrevOut, valpk *btc.TxOut) {
var update_wallet bool
mutex_bal.Lock()
defer mutex_bal.Unlock()
if valpk != nil {
// Extract hash160 from pkscript
adr := btc.NewAddrFromPkScript(valpk.Pk_script, common.Testnet)
if adr == nil {
return // We do not monitor this address
}
if rec, ok := CachedAddrs[adr.Hash160]; ok {
rec.Value += valpk.Value
utxo := btc.OneUnspentTx{TxPrevOut: *idx, Value: valpk.Value,
MinedAt: valpk.BlockHeight, BtcAddr: CacheUnspent[rec.CacheIndex].BtcAddr}
CacheUnspent[rec.CacheIndex].AllUnspentTx = append(CacheUnspent[rec.CacheIndex].AllUnspentTx, utxo)
CacheUnspentIdx[po2idx(idx)] = [2]uint{rec.CacheIndex, uint(len(CacheUnspent[rec.CacheIndex].AllUnspentTx)) - 1}
if rec.InWallet {
update_wallet = true
}
}
} else {
ii := po2idx(idx)
if ab, present := CacheUnspentIdx[ii]; present {
adrec := CacheUnspent[ab[0]]
rec := CachedAddrs[adrec.BtcAddr.Hash160]
rec.Value -= adrec.AllUnspentTx[ab[1]].Value
if rec.InWallet {
update_wallet = true
}
adrec.AllUnspentTx = append(adrec.AllUnspentTx[:ab[1]], adrec.AllUnspentTx[ab[1]+1:]...)
delete(CacheUnspentIdx, ii)
}
}
if MyWallet != nil && update_wallet {
MyBalance = nil
for i := range MyWallet.Addrs {
rec, _ := CachedAddrs[MyWallet.Addrs[i].Hash160]
MyBalance = append(MyBalance, CacheUnspent[rec.CacheIndex].AllUnspentTx...)
}
BalanceChanged = true
}
}
// dump raw transaction
func dump_raw_tx() {
tx := raw_tx_from_file(*dumptxfn)
if tx == nil {
fmt.Println("ERROR: Cannot decode the raw transaction")
return
}
var unsigned int
fmt.Println("Tx Version:", tx.Version)
if tx.IsCoinBase() {
if len(tx.TxIn[0].ScriptSig) >= 4 && tx.TxIn[0].ScriptSig[0] == 3 {
fmt.Println("Coinbase TX from block height", uint(tx.TxIn[0].ScriptSig[1])|
uint(tx.TxIn[0].ScriptSig[2])<<8|uint(tx.TxIn[0].ScriptSig[3])<<16)
} else {
fmt.Println("Coinbase TX from an unknown block")
}
s := hex.EncodeToString(tx.TxIn[0].ScriptSig)
for len(s) > 0 {
i := len(s)
if i > 64 {
i = 64
}
fmt.Println(" ", s[:i])
s = s[i:]
}
//fmt.Println()
} else {
fmt.Println("TX IN cnt:", len(tx.TxIn))
for i := range tx.TxIn {
fmt.Printf("%4d) %s sl=%d seq=%08x\n", i, tx.TxIn[i].Input.String(),
len(tx.TxIn[i].ScriptSig), tx.TxIn[i].Sequence)
if len(tx.TxIn[i].ScriptSig) > 0 {
dump_sigscript(tx.TxIn[i].ScriptSig)
} else {
unsigned++
}
}
}
fmt.Println("TX OUT cnt:", len(tx.TxOut))
for i := range tx.TxOut {
fmt.Printf("%4d) %20s BTC to ", i, btc.UintToBtc(tx.TxOut[i].Value))
addr := btc.NewAddrFromPkScript(tx.TxOut[i].Pk_script, *testnet)
if addr != nil {
fmt.Println("address", addr.String())
} else {
fmt.Println("Pk_script:")
ss, er := btc.ScriptToText(tx.TxOut[i].Pk_script)
if er == nil {
for i := range ss {
fmt.Println(" ", ss[i])
}
} else {
fmt.Println(hex.EncodeToString(tx.TxOut[i].Pk_script))
fmt.Println(er.Error())
}
}
}
fmt.Println("Lock Time:", tx.Lock_time)
if !tx.IsCoinBase() {
if unsigned > 0 {
fmt.Println("Number of unsigned inputs:", unsigned)
} else {
fmt.Println("All the inputs seems to be signed")
}
}
}
func main() {
fmt.Println("Gocoin FetchBalnace version", btc.SourcesTag)
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)
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, btc.ADDRVER_BTC)
if ba != nil {
b58adr = ba.String()
}
}
txidlsb, _ := hex.DecodeString(r.Unspent_outputs[i].Tx_hash)
if txidlsb != nil {
txid := btc.NewUint256(txidlsb)
if GetTx(txid, int(r.Unspent_outputs[i].Tx_output_n)) {
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)
}
}
}