// Get tx with given id from the balance folder, of from cache
func tx_from_balance(txid *btc.Uint256, error_is_fatal bool) (tx *btc.Tx) {
if tx = loadedTxs[txid.Hash]; tx != nil {
return // we have it in cache already
}
fn := "balance/" + txid.String() + ".tx"
buf, er := ioutil.ReadFile(fn)
if er == nil && buf != nil {
var th [32]byte
btc.ShaHash(buf, th[:])
if txid.Hash == th {
tx, _ = btc.NewTx(buf)
if error_is_fatal && tx == nil {
println("Transaction is corrupt:", txid.String())
cleanExit(1)
}
} else if error_is_fatal {
println("Transaction file is corrupt:", txid.String())
cleanExit(1)
}
} else if error_is_fatal {
println("Error reading transaction file:", fn)
if er != nil {
println(er.Error())
}
cleanExit(1)
}
loadedTxs[txid.Hash] = tx // store it in the cache
return
}
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.ver_flags) {
oks++
}
}
return oks == len(tx.TxIn)
}
func raw_tx_from_file(fn string) *btc.Tx {
dat := sys.GetRawData(fn)
if dat == nil {
fmt.Println("Cannot fetch raw transaction data")
return nil
}
tx, txle := btc.NewTx(dat)
if tx != nil {
tx.Hash = btc.NewSha2Hash(dat)
if txle != len(dat) {
fmt.Println("WARNING: Raw transaction length mismatch", txle, len(dat))
}
}
return tx
}
func raw_tx_from_file(fn string) *btc.Tx {
d, er := ioutil.ReadFile(fn)
if er != nil {
fmt.Println(er.Error())
return nil
}
dat, er := hex.DecodeString(string(d))
if er != nil {
fmt.Println("hex.DecodeString failed - assume binary transaction file")
dat = d
}
tx, txle := btc.NewTx(dat)
if tx != nil && txle != len(dat) {
fmt.Println("WARNING: Raw transaction length mismatch", txle, len(dat))
}
return tx
}
func LoadRawTx(buf []byte) (s string) {
txd, er := hex.DecodeString(string(buf))
if er != nil {
txd = buf
}
// At this place we should have raw transaction in txd
tx, le := btc.NewTx(txd)
if tx == nil || le != len(txd) {
s += fmt.Sprintln("Could not decode transaction file or it has some extra data")
return
}
tx.Hash = btc.NewSha2Hash(txd)
network.TxMutex.Lock()
defer network.TxMutex.Unlock()
if _, ok := network.TransactionsToSend[tx.Hash.BIdx()]; ok {
s += fmt.Sprintln("TxID", tx.Hash.String(), "was already in the pool")
return
}
var missinginp bool
var totinp, totout uint64
s, missinginp, totinp, totout, er = DecodeTx(tx)
if er != nil {
return
}
if missinginp {
network.TransactionsToSend[tx.Hash.BIdx()] = &network.OneTxToSend{Tx: tx, Data: txd, Own: 2, Firstseen: time.Now(),
Volume: totout}
} else {
network.TransactionsToSend[tx.Hash.BIdx()] = &network.OneTxToSend{Tx: tx, Data: txd, Own: 1, Firstseen: time.Now(),
Volume: totinp, Fee: totinp - totout}
}
s += fmt.Sprintln("Transaction added to the memory pool. Please double check its details above.")
s += fmt.Sprintln("If it does what you intended, you can send it the network.\nUse TxID:", tx.Hash.String())
return
}
func TestSighash(t *testing.T) {
var arr [][]interface{}
dat, er := ioutil.ReadFile("../test/sighash.json")
if er != nil {
println(er.Error())
return
}
r := bytes.NewBuffer(dat)
d := json.NewDecoder(r)
d.UseNumber()
er = d.Decode(&arr)
if er != nil {
println(er.Error())
return
}
for i := range arr {
if len(arr[i]) == 5 {
tmp, _ := hex.DecodeString(arr[i][0].(string))
tx, _ := btc.NewTx(tmp)
if tx == nil {
t.Error("Cannot decode tx from text number", i)
continue
}
tmp, _ = hex.DecodeString(arr[i][1].(string)) // script
iidx, _ := arr[i][2].(json.Number).Int64()
htype, _ := arr[i][3].(json.Number).Int64()
got := tx.SignatureHash(tmp, int(iidx), int32(htype))
exp := btc.NewUint256FromString(arr[i][4].(string))
if !bytes.Equal(exp.Hash[:], got) {
t.Error("SignatureHash mismatch at index", i)
}
}
}
}
// Handle incoming "tx" msg
func (c *OneConnection) ParseTxNet(pl []byte) {
tid := btc.NewSha2Hash(pl)
NeedThisTx(tid, func() {
// This body is called with a locked TxMutex
if uint32(len(pl)) > atomic.LoadUint32(&common.CFG.TXPool.MaxTxSize) {
common.CountSafe("TxRejectedBig")
RejectTx(tid, len(pl), TX_REJECTED_TOO_BIG)
return
}
tx, le := btc.NewTx(pl)
if tx == nil {
RejectTx(tid, len(pl), TX_REJECTED_FORMAT)
c.DoS("TxRejectedBroken")
return
}
if le != len(pl) {
RejectTx(tid, len(pl), TX_REJECTED_LEN_MISMATCH)
c.DoS("TxRejectedLenMismatch")
return
}
if len(tx.TxIn) < 1 {
RejectTx(tid, len(pl), TX_REJECTED_EMPTY_INPUT)
c.Misbehave("TxRejectedNoInputs", 100)
return
}
tx.Hash = tid
select {
case NetTxs <- &TxRcvd{conn: c, tx: tx, raw: pl}:
TransactionsPending[tid.BIdx()] = true
default:
common.CountSafe("NetTxsFULL")
println("NetTxsFULL")
}
})
}
func p_miners(w http.ResponseWriter, r *http.Request) {
if !ipchecker(r) {
return
}
common.ReloadMiners()
m := make(map[string]omv, 20)
var om omv
cnt := 0
common.Last.Mutex.Lock()
end := common.Last.Block
common.Last.Mutex.Unlock()
var lastts int64
var diff float64
var totbts uint64
var totfees uint64
current_mid := -1
now := time.Now().Unix()
common.LockCfg()
minerid := common.CFG.Beeps.MinerID
common.UnlockCfg()
next_diff_change := 2016 - end.Height%2016
block_versions := make(map[uint32]uint)
// bip100
bip100_voting := make(map[string]uint)
//var bip100, bip100v uint64
bip100x := regexp.MustCompile("/BV{0,1}[0-9]+[M]{0,1}/")
//bip100rx := regexp.MustCompile("/B[0-9]+[M]{0,1}/")
for ; end != nil; cnt++ {
if now-int64(end.Timestamp()) > int64(common.CFG.MiningStatHours)*3600 {
break
}
lastts = int64(end.Timestamp())
bl, _, e := common.BlockChain.Blocks.BlockGet(end.BlockHash)
if e != nil {
return
}
block, e := btc.NewBlock(bl)
cbasetx, _ := btc.NewTx(bl[block.TxOffset:])
block_versions[binary.LittleEndian.Uint32(bl[0:4])]++
diff += btc.GetDifficulty(end.Bits())
miner, mid := common.TxMiner(cbasetx)
if mid == -1 {
miner = "<i>" + miner + "</i>"
}
om = m[miner]
om.cnt++
om.bts += uint64(len(bl))
om.mid = mid
// Blocks reward
var rew uint64
for o := range cbasetx.TxOut {
rew += cbasetx.TxOut[o].Value
}
om.fees += rew - btc.GetBlockReward(end.Height)
// bip-100
res := bip100x.Find(cbasetx.TxIn[0].ScriptSig)
if res != nil {
bip100_voting[string(res)]++
}
m[miner] = om
if mid != -1 && current_mid == -1 && minerid == string(common.MinerIds[mid].Tag) {
current_mid = mid
}
totbts += uint64(len(bl))
end = end.Parent
}
if cnt == 0 {
write_html_head(w, r)
w.Write([]byte(fmt.Sprint("No blocks in last ", common.CFG.MiningStatHours, " hours")))
write_html_tail(w)
return
}
srt := make(onemiernstat, len(m))
i := 0
for k, v := range m {
srt[i].name = k
srt[i].omv = v
i++
}
sort.Sort(srt)
mnrs := load_template("miners.html")
onerow := load_template("miners_row.html")
diff /= float64(cnt)
bph := float64(cnt) / float64(common.CFG.MiningStatHours)
hrate := bph / 6 * diff * 7158278.826667
mnrs = strings.Replace(mnrs, "{MINING_HOURS}", fmt.Sprint(common.CFG.MiningStatHours), 1)
mnrs = strings.Replace(mnrs, "{BLOCKS_COUNT}", fmt.Sprint(cnt), 1)
mnrs = strings.Replace(mnrs, "{FIRST_BLOCK_TIME}", time.Unix(lastts, 0).Format("2006-01-02 15:04:05"), 1)
mnrs = strings.Replace(mnrs, "{AVG_BLOCKS_PER_HOUR}", fmt.Sprintf("%.2f", bph), 1)
mnrs = strings.Replace(mnrs, "{AVG_DIFFICULTY}", common.NumberToString(diff), 1)
mnrs = strings.Replace(mnrs, "{AVG_HASHDATE}", common.HashrateToString(hrate), 1)
mnrs = strings.Replace(mnrs, "{AVG_BLOCKSIZE}", fmt.Sprintf("%.1fKB", float64(totbts)/float64(cnt)/1000), 1)
mnrs = strings.Replace(mnrs, "{DIFF_CHANGE_IN}", fmt.Sprint(next_diff_change), 1)
mnrs = strings.Replace(mnrs, "{MINER_MON_IDX}", fmt.Sprint(current_mid), 1)
for i := range srt {
s := onerow
s = strings.Replace(s, "{MINER_NAME}", srt[i].name, 1)
s = strings.Replace(s, "{BLOCK_COUNT}", fmt.Sprint(srt[i].cnt), 1)
s = strings.Replace(s, "{TOTAL_PERCENT}", fmt.Sprintf("%.0f", 100*float64(srt[i].cnt)/float64(cnt)), 1)
s = strings.Replace(s, "{MINER_HASHRATE}", common.HashrateToString(hrate*float64(srt[i].cnt)/float64(cnt)), 1)
s = strings.Replace(s, "{AVG_BLOCK_SIZE}", fmt.Sprintf("%.1fKB", float64(srt[i].bts)/float64(srt[i].cnt)/1000), 1)
s = strings.Replace(s, "{MINER_ID}", fmt.Sprint(srt[i].mid), -1)
s = strings.Replace(s, "<!--TOTAL_FEES-->", btc.UintToBtc(srt[i].fees), -1)
s = strings.Replace(s, "<!--FEE_PER_BYTE-->", fmt.Sprint(srt[i].fees/srt[i].bts), -1)
mnrs = templ_add(mnrs, "<!--MINER_ROW-->", s)
totfees += srt[i].fees
}
mnrs = strings.Replace(mnrs, "<!--TOTAL_MINING_FEES-->", btc.UintToBtc(totfees), 1)
mnrs = strings.Replace(mnrs, "<!--AVERAGE_FEE_PER_BYTE-->", fmt.Sprint(totfees/totbts), 1)
var bv string
for k, v := range block_versions {
if bv != "" {
bv += " + "
}
bv += fmt.Sprintf("%dx%d", v, k)
}
mnrs = strings.Replace(mnrs, "<!--BLOCK_VERSIONS-->", bv, 1)
// bip100
bv = ""
for k, v := range bip100_voting {
if bv != "" {
bv += " + "
}
bv += fmt.Sprintf("%sx%d", k, v)
}
mnrs = strings.Replace(mnrs, "<!--BLOCKSIZE_VOTES-->", bv, 1)
write_html_head(w, r)
w.Write([]byte(mnrs))
write_html_tail(w)
}
func p_blocks(w http.ResponseWriter, r *http.Request) {
if !ipchecker(r) {
return
}
blks := load_template("blocks.html")
onerow := load_template("blocks_row.html")
common.Last.Mutex.Lock()
end := common.Last.Block
common.Last.Mutex.Unlock()
for cnt := uint32(0); end != nil && cnt < atomic.LoadUint32(&common.CFG.WebUI.ShowBlocks); cnt++ {
bl, _, e := common.BlockChain.Blocks.BlockGet(end.BlockHash)
if e != nil {
return
}
block, e := btc.NewBlock(bl)
if e != nil {
return
}
cbasetx, _ := btc.NewTx(bl[block.TxOffset:])
s := onerow
s = strings.Replace(s, "{BLOCK_NUMBER}", fmt.Sprint(end.Height), 1)
s = strings.Replace(s, "{BLOCK_TIMESTAMP}",
time.Unix(int64(block.BlockTime()), 0).Format("Mon 15:04:05"), 1)
s = strings.Replace(s, "{BLOCK_HASH}", end.BlockHash.String(), 1)
s = strings.Replace(s, "{BLOCK_TXS}", fmt.Sprint(block.TxCount), 1)
s = strings.Replace(s, "{BLOCK_SIZE}", fmt.Sprintf("%.1f", float64(len(bl))/1000), 1)
var rew uint64
for o := range cbasetx.TxOut {
rew += cbasetx.TxOut[o].Value
}
s = strings.Replace(s, "<!--BLOCK_VERSION-->", fmt.Sprint(block.Version()), 1)
s = strings.Replace(s, "{BLOCK_REWARD}", fmt.Sprintf("%.2f", float64(rew)/1e8), 1)
mi, _ := common.TxMiner(cbasetx)
if len(mi) > 10 {
mi = mi[:10]
}
s = strings.Replace(s, "{BLOCK_MINER}", mi, 1)
network.MutexRcv.Lock()
rb := network.ReceivedBlocks[end.BlockHash.BIdx()]
network.MutexRcv.Unlock()
if rb.TmDownload != 0 {
s = strings.Replace(s, "{TIME_TO_DOWNLOAD}", fmt.Sprint(int(rb.TmDownload/time.Millisecond)), 1)
} else {
s = strings.Replace(s, "{TIME_TO_DOWNLOAD}", "", 1)
}
if rb.TmAccept != 0 {
s = strings.Replace(s, "{TIME_TO_ACCEPT}", fmt.Sprint(int(rb.TmAccept/time.Millisecond)), 1)
} else {
s = strings.Replace(s, "{TIME_TO_ACCEPT}", "", 1)
}
if rb.Cnt != 0 {
s = strings.Replace(s, "{WASTED_BLOCKS}", fmt.Sprint(rb.Cnt), 1)
} else {
s = strings.Replace(s, "{WASTED_BLOCKS}", "", 1)
}
s = strings.Replace(s, "{TIME_RECEIVED}", rb.Time.Format("15:04:05"), 1)
blks = templ_add(blks, "<!--BLOCK_ROW-->", s)
end = end.Parent
}
write_html_head(w, r)
w.Write([]byte(blks))
write_html_tail(w)
}
func do_mining(s string) {
var totbtc, hrs uint64
if s != "" {
hrs, _ = strconv.ParseUint(s, 10, 64)
}
if hrs == 0 {
hrs = uint64(common.CFG.MiningStatHours)
}
fmt.Println("Looking back", hrs, "hours...")
lim := uint32(time.Now().Add(-time.Hour * time.Duration(hrs)).Unix())
common.Last.Mutex.Lock()
bte := common.Last.Block
end := bte
common.Last.Mutex.Unlock()
cnt, diff := 0, float64(0)
tot_blocks, tot_blocks_len := 0, 0
bip100_voting := make(map[string]uint)
bip100x := regexp.MustCompile("/BV{0,1}[0-9]+[M]{0,1}/")
for end.Timestamp() >= lim {
bl, _, e := common.BlockChain.Blocks.BlockGet(end.BlockHash)
if e != nil {
println(cnt, e.Error())
return
}
block, e := btc.NewBlock(bl)
if e != nil {
println("btc.NewBlock failed", e.Error())
return
}
bt, _ := btc.NewBlock(bl)
cbasetx, cbtxlen := btc.NewTx(bl[bt.TxOffset:])
tot_blocks++
tot_blocks_len += len(bl)
diff += btc.GetDifficulty(block.Bits())
common.LockCfg()
if common.CFG.Beeps.MinerID != "" &&
bytes.Contains(bl[bt.TxOffset:bt.TxOffset+cbtxlen], []byte(common.CFG.Beeps.MinerID)) {
block.BuildTxList()
totbtc += block.Txs[0].TxOut[0].Value
cnt++
fmt.Printf("%4d) %6d %s %s %5.2f => %5.2f BTC total, %d txs, %.1f KB\n",
cnt, end.Height, end.BlockHash.String(),
time.Unix(int64(end.Timestamp()), 0).Format("2006-01-02 15:04:05"),
float64(block.Txs[0].TxOut[0].Value)/1e8, float64(totbtc)/1e8,
len(block.Txs), float64(len(bl))/1e3)
}
common.UnlockCfg()
res := bip100x.Find(cbasetx.TxIn[0].ScriptSig)
if res != nil {
bip100_voting[string(res)]++
nimer, _ := common.TxMiner(cbasetx)
fmt.Println(" block", end.Height, "by", nimer, "voting", string(res), " total:", bip100_voting[string(res)])
}
end = end.Parent
}
if tot_blocks == 0 {
fmt.Println("There are no blocks from the last", hrs, "hour(s)")
return
}
diff /= float64(tot_blocks)
common.LockCfg()
if common.CFG.Beeps.MinerID != "" {
fmt.Printf("%.8f BTC mined by %s, in %d blocks for the last %d hours\n",
float64(totbtc)/1e8, common.CFG.Beeps.MinerID, cnt, hrs)
}
common.UnlockCfg()
if cnt > 0 {
fmt.Printf("Projected weekly income : %.0f BTC, estimated hashrate : %s\n",
7*24*float64(totbtc)/float64(hrs)/1e8,
common.HashrateToString(float64(cnt)/float64(6*hrs)*diff*7158278.826667))
}
bph := float64(tot_blocks) / float64(hrs)
fmt.Printf("Total network hashrate : %s @ average diff %.0f (%.2f bph)\n",
common.HashrateToString(bph/6*diff*7158278.826667), diff, bph)
fmt.Printf("Average block size was %.1f KB, next difficulty change in %d blocks\n",
float64(tot_blocks_len/tot_blocks)/1e3, 2016-bte.Height%2016)
}