Exemple #1
0
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
}
Exemple #2
0
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>"))
}
Exemple #3
0
// 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)
	}
}
Exemple #4
0
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
}
Exemple #5
0
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
}
Exemple #6
0
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)
		}
	}
}
Exemple #7
0
// 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
}