// add P2SH pre-signing data into a raw tx
func make_p2sh() {
tx := raw_tx_from_file(*rawtx)
if tx == nil {
fmt.Println("ERROR: Cannot decode the raw transaction")
return
}
d, er := hex.DecodeString(*p2sh)
if er != nil {
println("P2SH hex data:", er.Error())
return
}
ms, er := btc.NewMultiSigFromP2SH(d)
if er != nil {
println("Decode P2SH:", er.Error())
return
}
fmt.Println("The P2SH data points to address", ms.BtcAddr(*testnet).String())
sd := ms.Bytes()
for i := range tx.TxIn {
tx.TxIn[i].ScriptSig = sd
fmt.Println("Input number", i, " - hash to sign:", hex.EncodeToString(tx.SignatureHash(d, i, btc.SIGHASH_ALL)))
}
ioutil.WriteFile(MultiToSignOut, []byte(hex.EncodeToString(tx.Serialize())), 0666)
fmt.Println("Transaction with", len(tx.TxIn), "inputs ready for multi-signing, stored in", MultiToSignOut)
}
func dl_payment(w http.ResponseWriter, r *http.Request) {
if !ipchecker(r) {
return
}
var err string
if len(r.Form["outcnt"]) == 1 {
var thisbal btc.AllUnspentTx
var pay_cmd string
var totalinput, spentsofar uint64
var change_addr *btc.BtcAddr
var multisig_input []*wallet.MultisigAddr
var invalid_tx bool
addrs_to_msign := make(map[string]bool)
tx := new(btc.Tx)
tx.Version = 1
tx.Lock_time = 0
outcnt, _ := strconv.ParseUint(r.Form["outcnt"][0], 10, 32)
wallet.LockBal()
for i := 1; i <= int(outcnt); i++ {
is := fmt.Sprint(i)
if len(r.Form["txout"+is]) == 1 && r.Form["txout"+is][0] == "on" {
hash := btc.NewUint256FromString(r.Form["txid"+is][0])
if hash != nil {
vout, er := strconv.ParseUint(r.Form["txvout"+is][0], 10, 32)
if er == nil {
var po = btc.TxPrevOut{Hash: hash.Hash, Vout: uint32(vout)}
for j := range wallet.MyBalance {
if wallet.MyBalance[j].TxPrevOut == po {
thisbal = append(thisbal, wallet.MyBalance[j])
// Add the input to our tx
tin := new(btc.TxIn)
tin.Input = wallet.MyBalance[j].TxPrevOut
tin.Sequence = 0xffffffff
tx.TxIn = append(tx.TxIn, tin)
// Add new multisig address description
_, msi := wallet.IsMultisig(wallet.MyBalance[j].BtcAddr)
multisig_input = append(multisig_input, msi)
if msi != nil {
for ai := range msi.ListOfAddres {
addrs_to_msign[msi.ListOfAddres[ai]] = true
}
}
// Add the value to total input value
totalinput += wallet.MyBalance[j].Value
// If no change specified, use the first input addr as it
if change_addr == nil {
change_addr = wallet.MyBalance[j].BtcAddr
}
}
}
}
}
}
}
wallet.UnlockBal()
for i := 1; ; i++ {
adridx := fmt.Sprint("adr", i)
btcidx := fmt.Sprint("btc", i)
if len(r.Form[adridx]) != 1 || len(r.Form[btcidx]) != 1 {
break
}
if len(r.Form[adridx][0]) > 1 {
addr, er := btc.NewAddrFromString(r.Form[adridx][0])
if er == nil {
am, er := btc.StringToSatoshis(r.Form[btcidx][0])
if er == nil && am > 0 {
if pay_cmd == "" {
pay_cmd = "wallet -useallinputs -send "
} else {
pay_cmd += ","
}
pay_cmd += addr.Enc58str + "=" + btc.UintToBtc(am)
tout := new(btc.TxOut)
tout.Value = am
tout.Pk_script = addr.OutScript()
if tout.Pk_script != nil {
tx.TxOut = append(tx.TxOut, tout)
} else {
invalid_tx = true
}
spentsofar += am
} else {
err = "Incorrect amount (" + r.Form[btcidx][0] + ") for Output #" + fmt.Sprint(i)
goto error
}
} else {
err = "Incorrect address (" + r.Form[adridx][0] + ") for Output #" + fmt.Sprint(i)
goto error
}
}
}
if pay_cmd == "" {
err = "No inputs selected"
goto error
}
am, er := btc.StringToSatoshis(r.Form["txfee"][0])
if er != nil {
err = "Incorrect fee value: " + r.Form["txfee"][0]
goto error
}
pay_cmd += " -fee " + r.Form["txfee"][0]
spentsofar += am
if len(r.Form["change"][0]) > 1 {
addr, er := btc.NewAddrFromString(r.Form["change"][0])
if er != nil {
err = "Incorrect change address: " + r.Form["change"][0]
goto error
}
change_addr = addr
}
pay_cmd += " -change " + change_addr.String()
if totalinput > spentsofar {
// Add change output
tout := new(btc.TxOut)
tout.Value = totalinput - spentsofar
tout.Pk_script = change_addr.OutScript()
tx.TxOut = append(tx.TxOut, tout)
}
buf := new(bytes.Buffer)
zi := zip.NewWriter(buf)
was_tx := make(map[[32]byte]bool, len(thisbal))
for i := range thisbal {
if was_tx[thisbal[i].TxPrevOut.Hash] {
continue
}
was_tx[thisbal[i].TxPrevOut.Hash] = true
txid := btc.NewUint256(thisbal[i].TxPrevOut.Hash[:])
fz, _ := zi.Create("balance/" + txid.String() + ".tx")
wallet.GetRawTransaction(thisbal[i].MinedAt, txid, fz)
}
fz, _ := zi.Create("balance/unspent.txt")
for i := range thisbal {
fmt.Fprintf(fz, "%s # %.8f BTC @ %s, %d confs\n", thisbal[i].TxPrevOut.String(),
float64(thisbal[i].Value)/1e8, thisbal[i].BtcAddr.StringLab(),
1+common.Last.Block.Height-thisbal[i].MinedAt)
}
if len(addrs_to_msign) > 0 {
// Multisig (or mixed) transaction ...
for i := range multisig_input {
if multisig_input[i] == nil {
continue
}
d, er := hex.DecodeString(multisig_input[i].RedeemScript)
if er != nil {
println("ERROR parsing hex RedeemScript:", er.Error())
continue
}
ms, er := btc.NewMultiSigFromP2SH(d)
if er != nil {
println("ERROR parsing bin RedeemScript:", er.Error())
continue
}
tx.TxIn[i].ScriptSig = ms.Bytes()
}
fz, _ = zi.Create("multi2sign.txt")
fz.Write([]byte(hex.EncodeToString(tx.Serialize())))
fz, _ = zi.Create("multi_" + common.CFG.PayCommandName)
for k, _ := range addrs_to_msign {
fmt.Fprintln(fz, "wallet -msign", k, "-raw ...")
}
} else {
// Non-multisig transaction ...
if !invalid_tx {
fz, _ = zi.Create("tx2sign.txt")
fz.Write([]byte(hex.EncodeToString(tx.Serialize())))
}
if pay_cmd != "" {
fz, _ = zi.Create(common.CFG.PayCommandName)
fz.Write([]byte(pay_cmd))
}
}
zi.Close()
w.Header()["Content-Type"] = []string{"application/zip"}
w.Write(buf.Bytes())
return
} else {
err = "Bad request"
}
error:
s := load_template("send_error.html")
write_html_head(w, r)
s = strings.Replace(s, "<!--ERROR_MSG-->", err, 1)
w.Write([]byte(s))
write_html_tail(w)
}