func GetNextBlockTemplate(r *GetBlockTemplateResp) {
var zer [32]byte
common.Last.Mutex.Lock()
r.Curtime = uint(time.Now().Unix())
r.Mintime = uint(common.Last.Block.GetMedianTimePast()) + 1
if r.Curtime < r.Mintime {
r.Curtime = r.Mintime
}
height := common.Last.Block.Height + 1
bits := common.BlockChain.GetNextWorkRequired(common.Last.Block, uint32(r.Curtime))
target := btc.SetCompact(bits).Bytes()
r.Capabilities = []string{"proposal"}
r.Version = 4
r.PreviousBlockHash = common.Last.Block.BlockHash.String()
r.Transactions, r.Coinbasevalue = GetTransactions(height, uint32(r.Mintime))
r.Coinbasevalue += btc.GetBlockReward(height)
r.Coinbaseaux.Flags = ""
r.Longpollid = r.PreviousBlockHash
r.Target = hex.EncodeToString(append(zer[:32-len(target)], target...))
r.Mutable = []string{"time", "transactions", "prevblock"}
r.Noncerange = "00000000ffffffff"
r.Sigoplimit = btc.MAX_BLOCK_SIGOPS_COST / btc.WITNESS_SCALE_FACTOR
r.Sizelimit = btc.MAX_BLOCK_SIZE
r.Bits = fmt.Sprintf("%08x", bits)
r.Height = uint(height)
last_given_time = uint32(r.Curtime)
last_given_mintime = uint32(r.Mintime)
common.Last.Mutex.Unlock()
}
func GetAverageFee() float64 {
Last.Mutex.Lock()
end := Last.Block
Last.Mutex.Unlock()
LockCfg()
blocks := CFG.AverageFeeBlocks
UnlockCfg()
if blocks <= 0 {
blocks = 1 // at leats one block
}
AverageFeeMutex.Lock()
defer AverageFeeMutex.Unlock()
if end.Height == averageFeeLastBlock && averageFeeLastCount == blocks {
return AverageFee_SPB // we've already calculated for this block
}
averageFeeLastBlock = end.Height
averageFeeLastCount = blocks
AverageFeeBytes = 0
AverageFeeTotal = 0
for blocks > 0 {
bl, _, e := BlockChain.Blocks.BlockGet(end.BlockHash)
if e != nil {
return 0
}
block, e := btc.NewBlock(bl)
if e != nil {
return 0
}
cbasetx, cbasetxlen := btc.NewTx(bl[block.TxOffset:])
for o := range cbasetx.TxOut {
AverageFeeTotal += cbasetx.TxOut[o].Value
}
AverageFeeTotal -= btc.GetBlockReward(end.Height)
AverageFeeBytes += uint64(len(bl) - block.TxOffset - cbasetxlen) /*do not count block header and conibase tx */
blocks--
end = end.Parent
}
if AverageFeeBytes == 0 {
if AverageFeeTotal != 0 {
panic("Impossible that miner gest a fee with no transactions in the block")
}
AverageFee_SPB = 0
} else {
AverageFee_SPB = float64(AverageFeeTotal) / float64(AverageFeeBytes)
}
return AverageFee_SPB
}
// This isusually the most time consuming process when applying a new block
func (ch *Chain) commitTxs(bl *btc.Block, changes *BlockChanges) (e error) {
sumblockin := btc.GetBlockReward(changes.Height)
var txoutsum, txinsum, sumblockout uint64
// Add each tx outs from the current block to the temporary pool
blUnsp := make(map[[32]byte][]*btc.TxOut, len(bl.Txs))
for i := range bl.Txs {
outs := make([]*btc.TxOut, len(bl.Txs[i].TxOut))
for j := range bl.Txs[i].TxOut {
bl.Txs[i].TxOut[j].BlockHeight = changes.Height
outs[j] = bl.Txs[i].TxOut[j]
}
blUnsp[bl.Txs[i].Hash.Hash] = outs
}
// create a channnel to receive results from VerifyScript threads:
done := make(chan bool, sys.UseThreads)
for i := range bl.Txs {
txoutsum, txinsum = 0, 0
// Check each tx for a valid input, except from the first one
if i > 0 {
tx_trusted := bl.Trusted
if !tx_trusted && TrustedTxChecker != nil && TrustedTxChecker(bl.Txs[i].Hash) {
tx_trusted = true
}
scripts_ok := true
for j := 0; j < sys.UseThreads; j++ {
done <- true
}
for j := 0; j < len(bl.Txs[i].TxIn); /*&& e==nil*/ j++ {
inp := &bl.Txs[i].TxIn[j].Input
if _, ok := changes.DeledTxs[*inp]; ok {
println("txin", inp.String(), "already spent in this block")
e = errors.New("Input spent more then once in same block")
break
}
tout := ch.PickUnspent(inp)
if tout == nil {
t, ok := blUnsp[inp.Hash]
if !ok {
e = errors.New("Unknown input TxID: " + btc.NewUint256(inp.Hash[:]).String())
break
}
if inp.Vout >= uint32(len(t)) {
println("Vout too big", len(t), inp.String())
e = errors.New("Vout too big")
break
}
if t[inp.Vout] == nil {
println("Vout already spent", inp.String())
e = errors.New("Vout already spent")
break
}
tout = t[inp.Vout]
t[inp.Vout] = nil // and now mark it as spent:
}
if !(<-done) {
println("VerifyScript error 1")
scripts_ok = false
break
}
if tx_trusted {
done <- true
} else {
go func(sig []byte, prv []byte, i int, tx *btc.Tx) {
done <- script.VerifyTxScript(sig, prv, i, tx, bl.BlockTime() >= BIP16SwitchTime)
}(bl.Txs[i].TxIn[j].ScriptSig, tout.Pk_script, j, bl.Txs[i])
}
// Verify Transaction script:
txinsum += tout.Value
changes.DeledTxs[*inp] = tout
}
if scripts_ok {
scripts_ok = <-done
}
for j := 1; j < sys.UseThreads; j++ {
if !(<-done) {
println("VerifyScript error 2")
scripts_ok = false
}
}
if len(done) != 0 {
panic("ASSERT: The channel should be empty gere")
}
if !scripts_ok {
return errors.New("VerifyScripts failed")
}
} else {
// For coinbase tx we need to check (like satoshi) whether the script size is between 2 and 100 bytes
// (Previously we made sure in CheckBlock() that this was a coinbase type tx)
if len(bl.Txs[0].TxIn[0].ScriptSig) < 2 || len(bl.Txs[0].TxIn[0].ScriptSig) > 100 {
return errors.New(fmt.Sprint("Coinbase script has a wrong length", len(bl.Txs[0].TxIn[0].ScriptSig)))
}
}
sumblockin += txinsum
for j := range bl.Txs[i].TxOut {
txoutsum += bl.Txs[i].TxOut[j].Value
txa := new(btc.TxPrevOut)
copy(txa.Hash[:], bl.Txs[i].Hash.Hash[:])
txa.Vout = uint32(j)
_, spent := changes.DeledTxs[*txa]
if spent {
delete(changes.DeledTxs, *txa)
} else {
changes.AddedTxs[*txa] = bl.Txs[i].TxOut[j]
}
}
sumblockout += txoutsum
if e != nil {
return // If any input fails, do not continue
}
if i > 0 && txoutsum > txinsum {
return errors.New(fmt.Sprintf("More spent (%.8f) than at the input (%.8f) in TX %s",
float64(txoutsum)/1e8, float64(txinsum)/1e8, bl.Txs[i].Hash.String()))
}
}
if sumblockin < sumblockout {
return errors.New(fmt.Sprintf("Out:%d > In:%d", sumblockout, sumblockin))
}
return nil
}
// This isusually the most time consuming process when applying a new block
func (ch *Chain) commitTxs(bl *btc.Block, changes *BlockChanges) (e error) {
sumblockin := btc.GetBlockReward(changes.Height)
var txoutsum, txinsum, sumblockout uint64
if int(changes.Height)+UnwindBufferMaxHistory >= int(changes.LastKnownHeight) {
changes.UndoData = make(map[[32]byte]*QdbRec)
}
// Add each tx outs from the current block to the temporary pool
blUnsp := make(map[[32]byte][]*btc.TxOut, 4*len(bl.Txs))
for i := range bl.Txs {
outs := make([]*btc.TxOut, len(bl.Txs[i].TxOut))
copy(outs, bl.Txs[i].TxOut)
blUnsp[bl.Txs[i].Hash.Hash] = outs
}
// create a channnel to receive results from VerifyScript threads:
done := make(chan bool, sys.UseThreads)
for i := range bl.Txs {
txoutsum, txinsum = 0, 0
// Check each tx for a valid input, except from the first one
if i > 0 {
tx_trusted := bl.Trusted
if !tx_trusted && TrustedTxChecker != nil && TrustedTxChecker(bl.Txs[i].Hash) {
tx_trusted = true
}
scripts_ok := true
for j := 0; j < sys.UseThreads; j++ {
done <- true
}
for j := 0; j < len(bl.Txs[i].TxIn); /*&& e==nil*/ j++ {
inp := &bl.Txs[i].TxIn[j].Input
spendrec, waspent := changes.DeledTxs[inp.Hash]
if waspent && spendrec[inp.Vout] {
println("txin", inp.String(), "already spent in this block")
e = errors.New("Input spent more then once in same block")
break
}
tout := ch.PickUnspent(inp)
if tout == nil {
t, ok := blUnsp[inp.Hash]
if !ok {
e = errors.New("Unknown input TxID: " + btc.NewUint256(inp.Hash[:]).String())
break
}
if inp.Vout >= uint32(len(t)) {
println("Vout too big", len(t), inp.String())
e = errors.New("Vout too big")
break
}
if t[inp.Vout] == nil {
println("Vout already spent", inp.String())
e = errors.New("Vout already spent")
break
}
if t[inp.Vout].WasCoinbase {
e = errors.New("Cannot spend block's own coinbase in TxID: " + btc.NewUint256(inp.Hash[:]).String())
break
}
tout = t[inp.Vout]
t[inp.Vout] = nil // and now mark it as spent:
} else {
if tout.WasCoinbase && changes.Height-tout.BlockHeight < COINBASE_MATURITY {
e = errors.New("Trying to spend prematured coinbase: " + btc.NewUint256(inp.Hash[:]).String())
break
}
// it is confirmed already so delete it later
if !waspent {
spendrec = make([]bool, tout.VoutCount)
changes.DeledTxs[inp.Hash] = spendrec
}
spendrec[inp.Vout] = true
if changes.UndoData != nil {
var urec *QdbRec
urec = changes.UndoData[inp.Hash]
if urec == nil {
urec = new(QdbRec)
urec.TxID = inp.Hash
urec.Coinbase = tout.WasCoinbase
urec.InBlock = tout.BlockHeight
urec.Outs = make([]*QdbTxOut, tout.VoutCount)
changes.UndoData[inp.Hash] = urec
}
tmp := new(QdbTxOut)
tmp.Value = tout.Value
tmp.PKScr = make([]byte, len(tout.Pk_script))
copy(tmp.PKScr, tout.Pk_script)
urec.Outs[inp.Vout] = tmp
}
}
if !(<-done) {
println("VerifyScript error 1")
scripts_ok = false
break
}
if tx_trusted {
done <- true
} else {
go func(sig []byte, prv []byte, i int, tx *btc.Tx) {
done <- script.VerifyTxScript(sig, prv, i, tx, bl.VerifyFlags)
}(bl.Txs[i].TxIn[j].ScriptSig, tout.Pk_script, j, bl.Txs[i])
}
txinsum += tout.Value
}
if scripts_ok {
scripts_ok = <-done
}
for j := 1; j < sys.UseThreads; j++ {
if !(<-done) {
println("VerifyScript error 2")
scripts_ok = false
}
}
if len(done) != 0 {
panic("ASSERT: The channel should be empty gere")
}
if !scripts_ok {
return errors.New("VerifyScripts failed")
}
} else {
// For coinbase tx we need to check (like satoshi) whether the script size is between 2 and 100 bytes
// (Previously we made sure in CheckBlock() that this was a coinbase type tx)
if len(bl.Txs[0].TxIn[0].ScriptSig) < 2 || len(bl.Txs[0].TxIn[0].ScriptSig) > 100 {
return errors.New(fmt.Sprint("Coinbase script has a wrong length", len(bl.Txs[0].TxIn[0].ScriptSig)))
}
}
sumblockin += txinsum
for j := range bl.Txs[i].TxOut {
txoutsum += bl.Txs[i].TxOut[j].Value
}
sumblockout += txoutsum
if e != nil {
return // If any input fails, do not continue
}
if i > 0 && txoutsum > txinsum {
return errors.New(fmt.Sprintf("More spent (%.8f) than at the input (%.8f) in TX %s",
float64(txoutsum)/1e8, float64(txinsum)/1e8, bl.Txs[i].Hash.String()))
}
}
if sumblockin < sumblockout {
return errors.New(fmt.Sprintf("Out:%d > In:%d", sumblockout, sumblockin))
}
var rec *QdbRec
for k, v := range blUnsp {
for i := range v {
if v[i] != nil {
if rec == nil {
rec = new(QdbRec)
rec.TxID = k
rec.Coinbase = v[i].WasCoinbase
rec.InBlock = changes.Height
rec.Outs = make([]*QdbTxOut, len(v))
}
rec.Outs[i] = &QdbTxOut{Value: v[i].Value, PKScr: v[i].Pk_script}
}
}
if rec != nil {
changes.AddList = append(changes.AddList, rec)
rec = nil
}
}
return nil
}
// This isusually the most time consuming process when applying a new block
func (ch *Chain) commitTxs(bl *btc.Block, changes *BlockChanges) (e error) {
sumblockin := btc.GetBlockReward(changes.Height)
var txoutsum, txinsum, sumblockout uint64
if changes.Height+ch.Unspent.UnwindBufLen >= changes.LastKnownHeight {
changes.UndoData = make(map[[32]byte]*QdbRec)
}
blUnsp := make(map[[32]byte][]*btc.TxOut, 4*len(bl.Txs))
var wg sync.WaitGroup
var ver_err_cnt uint32
for i := range bl.Txs {
txoutsum, txinsum = 0, 0
bl.SigopsCost += uint32(btc.WITNESS_SCALE_FACTOR * bl.Txs[i].GetLegacySigOpCount())
// Check each tx for a valid input, except from the first one
if i > 0 {
tx_trusted := bl.Trusted
if !tx_trusted && TrustedTxChecker != nil && TrustedTxChecker(bl.Txs[i].Hash) {
tx_trusted = true
}
for j := 0; j < len(bl.Txs[i].TxIn); j++ {
inp := &bl.Txs[i].TxIn[j].Input
spendrec, waspent := changes.DeledTxs[inp.Hash]
if waspent && spendrec[inp.Vout] {
println("txin", inp.String(), "already spent in this block")
e = errors.New("Input spent more then once in same block")
return
}
tout := ch.PickUnspent(inp)
if tout == nil {
t, ok := blUnsp[inp.Hash]
if !ok {
e = errors.New("Unknown input TxID: " + btc.NewUint256(inp.Hash[:]).String())
return
}
if inp.Vout >= uint32(len(t)) {
println("Vout too big", len(t), inp.String())
e = errors.New("Vout too big")
return
}
if t[inp.Vout] == nil {
println("Vout already spent", inp.String())
e = errors.New("Vout already spent")
return
}
if t[inp.Vout].WasCoinbase {
e = errors.New("Cannot spend block's own coinbase in TxID: " + btc.NewUint256(inp.Hash[:]).String())
return
}
tout = t[inp.Vout]
t[inp.Vout] = nil // and now mark it as spent:
} else {
if tout.WasCoinbase && changes.Height-tout.BlockHeight < COINBASE_MATURITY {
e = errors.New("Trying to spend prematured coinbase: " + btc.NewUint256(inp.Hash[:]).String())
return
}
// it is confirmed already so delete it later
if !waspent {
spendrec = make([]bool, tout.VoutCount)
changes.DeledTxs[inp.Hash] = spendrec
}
spendrec[inp.Vout] = true
if changes.UndoData != nil {
var urec *QdbRec
urec = changes.UndoData[inp.Hash]
if urec == nil {
urec = new(QdbRec)
urec.TxID = inp.Hash
urec.Coinbase = tout.WasCoinbase
urec.InBlock = tout.BlockHeight
urec.Outs = make([]*QdbTxOut, tout.VoutCount)
changes.UndoData[inp.Hash] = urec
}
tmp := new(QdbTxOut)
tmp.Value = tout.Value
tmp.PKScr = make([]byte, len(tout.Pk_script))
copy(tmp.PKScr, tout.Pk_script)
urec.Outs[inp.Vout] = tmp
}
}
if !tx_trusted { // run VerifyTxScript() in a parallel task
wg.Add(1)
go func(prv []byte, amount uint64, i int, tx *btc.Tx) {
if !script.VerifyTxScript(prv, amount, i, tx, bl.VerifyFlags) {
atomic.AddUint32(&ver_err_cnt, 1)
}
wg.Done()
}(tout.Pk_script, tout.Value, j, bl.Txs[i])
}
if btc.IsP2SH(tout.Pk_script) {
bl.SigopsCost += uint32(btc.WITNESS_SCALE_FACTOR * btc.GetP2SHSigOpCount(bl.Txs[i].TxIn[j].ScriptSig))
}
bl.SigopsCost += uint32(bl.Txs[i].CountWitnessSigOps(j, tout.Pk_script))
txinsum += tout.Value
}
if !tx_trusted {
wg.Wait()
if ver_err_cnt > 0 {
println("VerifyScript failed", ver_err_cnt, "time(s)")
return errors.New(fmt.Sprint("VerifyScripts failed ", ver_err_cnt, "time(s)"))
}
}
} else {
// For coinbase tx we need to check (like satoshi) whether the script size is between 2 and 100 bytes
// (Previously we made sure in CheckBlock() that this was a coinbase type tx)
if len(bl.Txs[0].TxIn[0].ScriptSig) < 2 || len(bl.Txs[0].TxIn[0].ScriptSig) > 100 {
return errors.New(fmt.Sprint("Coinbase script has a wrong length ", len(bl.Txs[0].TxIn[0].ScriptSig)))
}
}
sumblockin += txinsum
for j := range bl.Txs[i].TxOut {
txoutsum += bl.Txs[i].TxOut[j].Value
}
sumblockout += txoutsum
if e != nil {
return // If any input fails, do not continue
}
if i > 0 {
bl.Txs[i].Fee = txinsum - txoutsum
if txoutsum > txinsum {
return errors.New(fmt.Sprintf("More spent (%.8f) than at the input (%.8f) in TX %s",
float64(txoutsum)/1e8, float64(txinsum)/1e8, bl.Txs[i].Hash.String()))
}
}
// Add each tx outs from the currently executed TX to the temporary pool
outs := make([]*btc.TxOut, len(bl.Txs[i].TxOut))
copy(outs, bl.Txs[i].TxOut)
blUnsp[bl.Txs[i].Hash.Hash] = outs
}
if sumblockin < sumblockout {
return errors.New(fmt.Sprintf("Out:%d > In:%d", sumblockout, sumblockin))
}
if bl.SigopsCost > btc.MAX_BLOCK_SIGOPS_COST {
return errors.New("commitTxs(): too many sigops - RPC_Result:bad-blk-sigops")
}
var rec *QdbRec
for k, v := range blUnsp {
for i := range v {
if v[i] != nil {
if rec == nil {
rec = new(QdbRec)
rec.TxID = k
rec.Coinbase = v[i].WasCoinbase
rec.InBlock = changes.Height
rec.Outs = make([]*QdbTxOut, len(v))
}
rec.Outs[i] = &QdbTxOut{Value: v[i].Value, PKScr: v[i].Pk_script}
}
}
if rec != nil {
changes.AddList = append(changes.AddList, rec)
rec = nil
}
}
return nil
}
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("%d (%d%%) x <b>v%d</b>", v, 100*int(v)/cnt, 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 json_blocks(w http.ResponseWriter, r *http.Request) {
if !ipchecker(r) {
return
}
type one_block struct {
Height uint32
Timestamp uint32
Hash string
TxCnt int
Size int
Version uint32
Reward uint64
Miner string
FeeSPB float64
Received uint32
TimePre, TimeDl, TimeVer, TimeQue int
WasteCnt uint
MissedCnt int
FromConID uint32
Sigops int
MinFeeKSPB uint64
NonWitnessSize int
}
var blks []*one_block
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
}
b := new(one_block)
b.Height = end.Height
b.Timestamp = block.BlockTime()
b.Hash = end.BlockHash.String()
b.TxCnt = block.TxCount
b.Size = len(bl)
b.Version = block.Version()
cbasetx, cbaselen := btc.NewTx(bl[block.TxOffset:])
for o := range cbasetx.TxOut {
b.Reward += cbasetx.TxOut[o].Value
}
b.Miner, _ = common.TxMiner(cbasetx)
if len(bl)-block.TxOffset-cbaselen != 0 {
b.FeeSPB = float64(b.Reward-btc.GetBlockReward(end.Height)) / float64(len(bl)-block.TxOffset-cbaselen)
}
common.BlockChain.BlockIndexAccess.Lock()
node := common.BlockChain.BlockIndex[end.BlockHash.BIdx()]
common.BlockChain.BlockIndexAccess.Unlock()
network.MutexRcv.Lock()
rb := network.ReceivedBlocks[end.BlockHash.BIdx()]
network.MutexRcv.Unlock()
b.Received = uint32(rb.TmStart.Unix())
b.Sigops = int(node.SigopsCost)
if rb.TmPreproc.IsZero() {
b.TimePre = -1
} else {
b.TimePre = int(rb.TmPreproc.Sub(rb.TmStart) / time.Millisecond)
}
if rb.TmDownload.IsZero() {
b.TimeDl = -1
} else {
b.TimeDl = int(rb.TmDownload.Sub(rb.TmStart) / time.Millisecond)
}
if rb.TmQueue.IsZero() {
b.TimeQue = -1
} else {
b.TimeQue = int(rb.TmQueue.Sub(rb.TmStart) / time.Millisecond)
}
if rb.TmAccepted.IsZero() {
b.TimeVer = -1
} else {
b.TimeVer = int(rb.TmAccepted.Sub(rb.TmStart) / time.Millisecond)
}
b.WasteCnt = rb.Cnt
b.MissedCnt = rb.TxMissing
b.FromConID = rb.FromConID
b.MinFeeKSPB = rb.MinFeeKSPB
b.NonWitnessSize = rb.NonWitnessSize
blks = append(blks, b)
end = end.Parent
}
bx, er := json.Marshal(blks)
if er == nil {
w.Header()["Content-Type"] = []string{"application/json"}
w.Write(bx)
} else {
println(er.Error())
}
}