func (c *oneConnection) ProcessGetBlocks(pl []byte) {
b := bytes.NewReader(pl)
var ver uint32
e := binary.Read(b, binary.LittleEndian, &ver)
if e != nil {
println("ProcessGetBlocks:", e.Error(), c.addr.Ip())
return
}
cnt, e := btc.ReadVLen(b)
if e != nil {
println("ProcessGetBlocks:", e.Error(), c.addr.Ip())
return
}
h2get := make([]*btc.Uint256, cnt)
var h [32]byte
for i := 0; i < int(cnt); i++ {
n, _ := b.Read(h[:])
if n != 32 {
println("getblocks too short", c.addr.Ip())
return
}
h2get[i] = btc.NewUint256(h[:])
if dbg > 1 {
println(c.addr.Ip(), "getbl", h2get[i].String())
}
}
n, _ := b.Read(h[:])
if n != 32 {
println("getblocks does not have hash_stop", c.addr.Ip())
return
}
hashstop := btc.NewUint256(h[:])
var maxheight uint32
invs := make(map[[32]byte]bool, 500)
for i := range h2get {
BlockChain.BlockIndexAccess.Lock()
if bl, ok := BlockChain.BlockIndex[h2get[i].BIdx()]; ok {
if bl.Height > maxheight {
maxheight = bl.Height
}
addInvBlockBranch(invs, bl, hashstop)
}
BlockChain.BlockIndexAccess.Unlock()
if len(invs) >= 500 {
break
}
}
inv := new(bytes.Buffer)
btc.WriteVlen(inv, uint32(len(invs)))
for k, _ := range invs {
binary.Write(inv, binary.LittleEndian, uint32(2))
inv.Write(k[:])
}
if dbg > 1 {
fmt.Println(c.addr.Ip(), "getblocks", cnt, maxheight, " ...", len(invs), "invs in resp ->", len(inv.Bytes()))
}
InvsSent++
c.SendRawMsg("inv", inv.Bytes())
}
func (c *OneConnection) ProcessGetData(pl []byte) {
//println(c.PeerAddr.Ip(), "getdata")
b := bytes.NewReader(pl)
cnt, e := btc.ReadVLen(b)
if e != nil {
println("ProcessGetData:", e.Error(), c.PeerAddr.Ip())
return
}
for i := 0; i < int(cnt); i++ {
var typ uint32
var h [32]byte
e = binary.Read(b, binary.LittleEndian, &typ)
if e != nil {
println("ProcessGetData:", e.Error(), c.PeerAddr.Ip())
return
}
n, _ := b.Read(h[:])
if n != 32 {
println("ProcessGetData: pl too short", c.PeerAddr.Ip())
return
}
common.CountSafe(fmt.Sprint("GetdataType", typ))
if typ == 2 {
uh := btc.NewUint256(h[:])
bl, _, er := common.BlockChain.Blocks.BlockGet(uh)
if er == nil {
c.SendRawMsg("block", bl)
} else {
//println("block", uh.String(), er.Error())
}
} else if typ == 1 {
// transaction
uh := btc.NewUint256(h[:])
TxMutex.Lock()
if tx, ok := TransactionsToSend[uh.Hash]; ok && tx.Blocked == 0 {
tx.SentCnt++
tx.Lastsent = time.Now()
TxMutex.Unlock()
c.SendRawMsg("tx", tx.Data)
if common.DebugLevel > 0 {
println("sent tx to", c.PeerAddr.Ip())
}
} else {
TxMutex.Unlock()
}
} else {
if common.DebugLevel > 0 {
println("getdata for type", typ, "not supported yet")
}
}
}
}
func send_all_tx(par string) {
network.TxMutex.Lock()
for k, v := range network.TransactionsToSend {
if v.Own != 0 {
cnt := network.NetRouteInv(1, btc.NewUint256(k[:]), nil)
v.Invsentcnt += cnt
fmt.Println("INV for TxID", btc.NewUint256(k[:]).String(), "sent to", cnt, "node(s)")
}
}
network.TxMutex.Unlock()
}
func (c *OneConnection) GetBlockData(h []byte) {
var b [1 + 4 + 32]byte
b[0] = 1 // One inv
b[1] = 2 // Block
copy(b[5:37], h[:32])
if common.DebugLevel > 1 {
println("GetBlockData", btc.NewUint256(h).String())
}
bh := btc.NewUint256(h)
c.Mutex.Lock()
c.GetBlockInProgress[bh.BIdx()] = &oneBlockDl{hash: bh, start: time.Now()}
c.Mutex.Unlock()
c.SendRawMsg("getdata", b[:])
}
func xml_balance(w http.ResponseWriter, r *http.Request) {
if !ipchecker(r) {
return
}
w.Header()["Content-Type"] = []string{"text/xml"}
w.Write([]byte("<unspent>"))
wallet.LockBal()
for i := range wallet.MyBalance {
w.Write([]byte("<output>"))
fmt.Fprint(w, "<txid>", btc.NewUint256(wallet.MyBalance[i].TxPrevOut.Hash[:]).String(), "</txid>")
fmt.Fprint(w, "<vout>", wallet.MyBalance[i].TxPrevOut.Vout, "</vout>")
fmt.Fprint(w, "<value>", wallet.MyBalance[i].Value, "</value>")
fmt.Fprint(w, "<inblock>", wallet.MyBalance[i].MinedAt, "</inblock>")
fmt.Fprint(w, "<blocktime>", get_block_time(wallet.MyBalance[i].MinedAt), "</blocktime>")
fmt.Fprint(w, "<addr>", wallet.MyBalance[i].BtcAddr.String(), "</addr>")
fmt.Fprint(w, "<wallet>", html.EscapeString(wallet.MyBalance[i].BtcAddr.Extra.Wallet), "</wallet>")
fmt.Fprint(w, "<label>", html.EscapeString(wallet.MyBalance[i].BtcAddr.Extra.Label), "</label>")
fmt.Fprint(w, "<virgin>", fmt.Sprint(wallet.MyBalance[i].BtcAddr.Extra.Virgin), "</virgin>")
w.Write([]byte("</output>"))
}
wallet.UnlockBal()
w.Write([]byte("</unspent>"))
}
func list_txs(par string) {
fmt.Println("Transactions in the memory pool:")
cnt := 0
network.TxMutex.Lock()
for k, v := range network.TransactionsToSend {
cnt++
var oe, snt string
if v.Own != 0 {
oe = " *OWN*"
} else {
oe = ""
}
snt = fmt.Sprintf("INV sent %d times, ", v.Invsentcnt)
if v.SentCnt == 0 {
snt = "TX never sent"
} else {
snt = fmt.Sprintf("TX sent %d times, last %s ago", v.SentCnt,
time.Now().Sub(v.Lastsent).String())
}
fmt.Printf("%5d) %s - %d bytes - %s%s\n", cnt,
btc.NewUint256(k[:]).String(), len(v.Data), snt, oe)
}
network.TxMutex.Unlock()
}
func list_txs(par string) {
fmt.Println("Transactions in the memory pool:")
cnt := 0
for k, v := range TransactionsToSend {
fmt.Println(cnt, btc.NewUint256(k[:]).String(), "-", len(v), "bytes")
}
}
func GetBlockData(h []byte) []byte {
bl, _, e := BlockChain.Blocks.BlockGet(btc.NewUint256(h))
if e == nil {
return bl
}
println("BlockChain.Blocks.BlockGet failed")
return nil
}
func (c *oneConnection) ProcessGetData(pl []byte) {
//println(c.addr.Ip(), "getdata")
b := bytes.NewReader(pl)
cnt, e := btc.ReadVLen(b)
if e != nil {
println("ProcessGetData:", e.Error(), c.addr.Ip())
return
}
for i := 0; i < int(cnt); i++ {
var typ uint32
var h [32]byte
e = binary.Read(b, binary.LittleEndian, &typ)
if e != nil {
println("ProcessGetData:", e.Error(), c.addr.Ip())
return
}
n, _ := b.Read(h[:])
if n != 32 {
println("ProcessGetData: pl too short", c.addr.Ip())
return
}
if typ == 2 {
uh := btc.NewUint256(h[:])
bl, _, er := BlockChain.Blocks.BlockGet(uh)
if er == nil {
BlockSent++
c.SendRawMsg("block", bl)
} else {
//println("block", uh.String(), er.Error())
}
} else if typ == 1 {
// transaction
uh := btc.NewUint256(h[:])
if tx, ok := TransactionsToSend[uh.Hash]; ok {
c.SendRawMsg("tx", tx)
println("sent tx to", c.addr.Ip())
}
} else {
println("getdata for type", typ, "not supported yet")
}
}
}
// Handle tx-inv notifications
func (c *OneConnection) TxInvNotify(hash []byte) {
if NeedThisTx(btc.NewUint256(hash), nil) {
var b [1 + 4 + 32]byte
b[0] = 1 // One inv
b[1] = 1 // Tx
copy(b[5:37], hash)
c.SendRawMsg("getdata", b[:])
}
}
// Call it only from the Chain thread
func DumpBalance(utxt *os.File, details bool) (s string) {
var sum uint64
mutex_bal.Lock()
defer mutex_bal.Unlock()
for i := range MyBalance {
sum += MyBalance[i].Value
if details {
if i < 100 {
s += fmt.Sprintf("%7d %s\n", 1+common.Last.Block.Height-MyBalance[i].MinedAt,
MyBalance[i].String())
} else if i == 100 {
s += fmt.Sprintln("List of unspent outputs truncated to 100 records")
}
}
// update the balance/ folder
if utxt != nil {
po, e := common.BlockChain.Unspent.UnspentGet(&MyBalance[i].TxPrevOut)
if e != nil {
println("UnspentGet:", e.Error())
println("This should not happen - please, report a bug.")
println("You can probably fix it by launching the client with -rescan")
os.Exit(1)
}
txid := btc.NewUint256(MyBalance[i].TxPrevOut.Hash[:])
// Store the unspent line in balance/unspent.txt
fmt.Fprintf(utxt, "%s # %.8f BTC @ %s, %d confs\n", MyBalance[i].TxPrevOut.String(),
float64(MyBalance[i].Value)/1e8, MyBalance[i].BtcAddr.StringLab(),
1+common.Last.Block.Height-MyBalance[i].MinedAt)
// store the entire transactiojn in balance/<txid>.tx
fn := "balance/" + txid.String()[:64] + ".tx"
txf, _ := os.Open(fn)
if txf == nil {
// Do it only once per txid
txf, _ = os.Create(fn)
if txf == nil {
println("Cannot create ", fn)
os.Exit(1)
}
GetRawTransaction(po.BlockHeight, txid, txf)
}
txf.Close()
}
}
LastBalance = sum
s += fmt.Sprintf("Total balance: %.8f BTC in %d unspent outputs\n", float64(sum)/1e8, len(MyBalance))
if utxt != nil {
utxt.Close()
}
return
}
func (c *oneConnection) GetBlockData(h []byte) {
var b [1 + 4 + 32]byte
b[0] = 1 // One inv
b[1] = 2 // Block
copy(b[5:37], h[:32])
if dbg > 1 {
println("GetBlockData", btc.NewUint256(h).String())
}
c.SendRawMsg("getdata", b[:])
}
func (db *unwindDb) stats() (s string) {
var cnt int
for i := range db.tdb {
cnt += db.dbH(i).Count()
}
s = fmt.Sprintf("UNWIND: len:%d last:%d defrags:%d/%d\n",
cnt, db.lastBlockHeight, db.defragCount, db.defragIndex)
s += "Last block: " + btc.NewUint256(db.lastBlockHash[:]).String() + "\n"
return
}
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 xmp_txs2s(w http.ResponseWriter, r *http.Request) {
if !ipchecker(r) {
return
}
r.ParseForm()
if checksid(r) && len(r.Form["del"]) > 0 {
tid := btc.NewUint256FromString(r.Form["del"][0])
if tid != nil {
network.TxMutex.Lock()
delete(network.TransactionsToSend, tid.Hash)
network.TxMutex.Unlock()
}
}
if checksid(r) && len(r.Form["send"]) > 0 {
tid := btc.NewUint256FromString(r.Form["send"][0])
if tid != nil {
network.TxMutex.Lock()
if ptx, ok := network.TransactionsToSend[tid.Hash]; ok {
network.TxMutex.Unlock()
cnt := network.NetRouteInv(1, tid, nil)
ptx.Invsentcnt += cnt
}
}
}
w.Header()["Content-Type"] = []string{"text/xml"}
if len(r.Form["id"]) > 0 {
output_tx_xml(w, r.Form["id"][0])
return
}
w.Write([]byte("<txpool>"))
network.TxMutex.Lock()
for k, v := range network.TransactionsToSend {
w.Write([]byte("<tx>"))
fmt.Fprint(w, "<id>", btc.NewUint256(k[:]).String(), "</id>")
fmt.Fprint(w, "<time>", v.Firstseen.Unix(), "</time>")
fmt.Fprint(w, "<len>", len(v.Data), "</len>")
fmt.Fprint(w, "<own>", v.Own, "</own>")
fmt.Fprint(w, "<firstseen>", v.Firstseen.Unix(), "</firstseen>")
fmt.Fprint(w, "<invsentcnt>", v.Invsentcnt, "</invsentcnt>")
fmt.Fprint(w, "<sentcnt>", v.SentCnt, "</sentcnt>")
fmt.Fprint(w, "<sentlast>", v.Lastsent.Unix(), "</sentlast>")
fmt.Fprint(w, "<volume>", v.Volume, "</volume>")
fmt.Fprint(w, "<fee>", v.Fee, "</fee>")
fmt.Fprint(w, "<blocked>", v.Blocked, "</blocked>")
w.Write([]byte("</tx>"))
}
network.TxMutex.Unlock()
w.Write([]byte("</txpool>"))
}
func (c *oneConnection) GetBlocks(lastbl []byte) {
if dbg > 0 {
println("GetBlocks since", btc.NewUint256(lastbl).String())
}
var b [4 + 1 + 32 + 32]byte
binary.LittleEndian.PutUint32(b[0:4], Version)
b[4] = 1 // only one locator
copy(b[5:37], lastbl)
// the remaining bytes should be filled with zero
c.SendRawMsg("getblocks", b[:])
}
func baned_txs(par string) {
fmt.Println("Rejected transactions:")
cnt := 0
network.TxMutex.Lock()
for k, v := range network.TransactionsRejected {
cnt++
fmt.Println("", cnt, btc.NewUint256(k[:]).String(), "-", v.Size, "bytes",
"-", v.Reason, "-", time.Now().Sub(v.Time).String(), "ago")
}
network.TxMutex.Unlock()
}
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>"))
}
func blockWanted(h []byte) (yes bool) {
ha := btc.NewUint256(h)
idx := ha.BIdx()
mutex.Lock()
if _, ok := receivedBlocks[idx]; !ok {
yes = true
}
mutex.Unlock()
if !yes {
InvsIgnored++
}
return
}
func chkblock(bl *btc.Block) (er error) {
// Check timestamp (must not be higher than now +2 hours)
if int64(bl.BlockTime) > time.Now().Unix()+2*60*60 {
er = errors.New("CheckBlock() : block timestamp too far in the future")
return
}
if prv, pres := MemBlockChain.BlockIndex[bl.Hash.BIdx()]; pres {
if prv.Parent == nil {
// This is genesis block
prv.Timestamp = bl.BlockTime
prv.Bits = bl.Bits
er = errors.New("Genesis")
return
} else {
return
}
}
prevblk, ok := MemBlockChain.BlockIndex[btc.NewUint256(bl.Parent).BIdx()]
if !ok {
er = errors.New("CheckBlock: " + bl.Hash.String() + " parent not found")
return
}
// Check proof of work
gnwr := MemBlockChain.GetNextWorkRequired(prevblk, bl.BlockTime)
if bl.Bits != gnwr {
if !Testnet || ((prevblk.Height+1)%2016) != 0 {
er = errors.New(fmt.Sprint("CheckBlock: Incorrect proof of work at block", prevblk.Height+1))
}
}
cur := new(btc.BlockTreeNode)
cur.BlockHash = bl.Hash
cur.Parent = prevblk
cur.Height = prevblk.Height + 1
cur.Bits = bl.Bits
cur.Timestamp = bl.BlockTime
prevblk.Childs = append(prevblk.Childs, cur)
MemBlockChain.BlockIndex[cur.BlockHash.BIdx()] = cur
LastBlock.Mutex.Lock()
if cur.Height > LastBlock.node.Height {
LastBlock.node = cur
}
LastBlock.Mutex.Unlock()
return
}
// Read VLen followed by the number of locators
// parse the payload of getblocks and getheaders messages
func parseLocatorsPayload(pl []byte) (h2get []*btc.Uint256, hashstop *btc.Uint256, er error) {
var cnt uint64
var h [32]byte
var ver uint32
b := bytes.NewReader(pl)
// version
if er = binary.Read(b, binary.LittleEndian, &ver); er != nil {
return
}
// hash count
cnt, er = btc.ReadVLen(b)
if er != nil {
return
}
// block locator hashes
if cnt > 0 {
h2get = make([]*btc.Uint256, cnt)
for i := 0; i < int(cnt); i++ {
if _, er = b.Read(h[:]); er != nil {
return
}
h2get[i] = btc.NewUint256(h[:])
}
}
// hash_stop
if _, er = b.Read(h[:]); er != nil {
return
}
hashstop = btc.NewUint256(h[:])
return
}
func p_snd(w http.ResponseWriter, r *http.Request) {
if !ipchecker(r) {
return
}
s := load_template("send.html")
wallet.LockBal()
if wallet.MyWallet != nil && len(wallet.MyBalance) > 0 {
wal := load_template("send_wal.html")
row_tmp := load_template("send_wal_row.html")
wal = strings.Replace(wal, "{TOTAL_BTC}", fmt.Sprintf("%.8f", float64(wallet.LastBalance)/1e8), 1)
wal = strings.Replace(wal, "{UNSPENT_OUTS}", fmt.Sprint(len(wallet.MyBalance)), -1)
for i := range wallet.MyBalance {
row := row_tmp
row = strings.Replace(row, "{ADDR_LABEL}", html.EscapeString(wallet.MyBalance[i].BtcAddr.Label), 1)
row = strings.Replace(row, "{ROW_NUMBER}", fmt.Sprint(i+1), -1)
row = strings.Replace(row, "{MINED_IN}", fmt.Sprint(wallet.MyBalance[i].MinedAt), 1)
row = strings.Replace(row, "{TX_ID}", btc.NewUint256(wallet.MyBalance[i].TxPrevOut.Hash[:]).String(), -1)
row = strings.Replace(row, "{TX_VOUT}", fmt.Sprint(wallet.MyBalance[i].TxPrevOut.Vout), -1)
row = strings.Replace(row, "{BTC_AMOUNT}", fmt.Sprintf("%.8f", float64(wallet.MyBalance[i].Value)/1e8), 1)
row = strings.Replace(row, "{OUT_VALUE}", fmt.Sprint(wallet.MyBalance[i].Value), 1)
row = strings.Replace(row, "{BTC_ADDR}", wallet.MyBalance[i].BtcAddr.String(), 1)
wal = templ_add(wal, "<!--UTXOROW-->", row)
}
for i := range wallet.MyWallet.Addrs {
op := "<option value=\"" + wallet.MyWallet.Addrs[i].Enc58str +
"\">" + wallet.MyWallet.Addrs[i].Enc58str + " (" +
html.EscapeString(wallet.MyWallet.Addrs[i].Label) + ")</option>"
//wal = strings.Replace(wal, "<!--ONECHANGEADDR-->", op, 1)
wal = templ_add(wal, "<!--ONECHANGEADDR-->", op)
}
s = strings.Replace(s, "<!--WALLET-->", wal, 1)
} else {
if wallet.MyWallet == nil {
s = strings.Replace(s, "<!--WALLET-->", "You have no wallet", 1)
} else {
s = strings.Replace(s, "<!--WALLET-->", "Your current wallet is empty", 1)
}
}
wallet.UnlockBal()
write_html_head(w, r)
w.Write([]byte(s))
write_html_tail(w)
}
// Called from network threads
func blockWanted(h []byte) (yes bool) {
idx := btc.NewUint256(h).BIdx()
MutexRcv.Lock()
_, ok := ReceivedBlocks[idx]
MutexRcv.Unlock()
if !ok {
if atomic.LoadUint32(&common.CFG.Net.MaxBlockAtOnce) == 0 || !blocksLimitReached(idx) {
yes = true
common.CountSafe("BlockWanted")
} else {
common.CountSafe("BlockInProgress")
}
} else {
common.CountSafe("BlockUnwanted")
}
return
}
func (c *OneConnection) ProcessInv(pl []byte) {
if len(pl) < 37 {
println(c.PeerAddr.Ip(), "inv payload too short", len(pl))
return
}
c.InvsRecieved++
cnt, of := btc.VLen(pl)
if len(pl) != of+36*cnt {
println("inv payload length mismatch", len(pl), of, cnt)
}
var blinv2ask []byte
for i := 0; i < cnt; i++ {
typ := binary.LittleEndian.Uint32(pl[of : of+4])
common.CountSafe(fmt.Sprint("InvGot", typ))
if typ == 2 {
if blockWanted(pl[of+4 : of+36]) {
blinv2ask = append(blinv2ask, pl[of+4:of+36]...)
}
} else if typ == 1 {
if common.CFG.TXPool.Enabled {
c.TxInvNotify(pl[of+4 : of+36])
}
}
of += 36
}
if len(blinv2ask) > 0 {
bu := new(bytes.Buffer)
btc.WriteVlen(bu, uint32(len(blinv2ask)/32))
for i := 0; i < len(blinv2ask); i += 32 {
bh := btc.NewUint256(blinv2ask[i : i+32])
c.Mutex.Lock()
c.GetBlockInProgress[bh.BIdx()] = &oneBlockDl{hash: bh, start: time.Now()}
c.Mutex.Unlock()
binary.Write(bu, binary.LittleEndian, uint32(2))
bu.Write(bh.Hash[:])
}
c.SendRawMsg("getdata", bu.Bytes())
}
return
}
func InvsNotify(h []byte) (need bool) {
ha := btc.NewUint256(h)
idx := ha.BIdx()
mutex.Lock()
if _, ok := pendingBlocks[idx]; ok {
InvsIgnored++
} else if _, ok := receivedBlocks[idx]; ok {
InvsIgnored++
} else if len(pendingFifo) < PendingFifoLen {
pendingBlocks[idx] = ha
pendingFifo <- idx
need = true
} else {
FifoFullCnt++
}
mutex.Unlock()
return
}
func (c *one_net_conn) ping_idle() {
c.ping.Lock()
if c.ping.inProgress {
if time.Now().After(c.ping.timeSent.Add(PING_TIMEOUT)) {
c.store_ping_result()
c.ping.Unlock()
//fmt.Println(c.peerip, "ping timeout", c.ping.seq)
} else {
c.ping.Unlock()
time.Sleep(time.Millisecond)
}
} else if c.ping.now {
//fmt.Println("ping", c.peerip, c.ping.seq)
c.ping.inProgress = true
c.ping.timeSent = time.Now()
c.ping.now = false
if false {
rand.Read(c.ping.pattern[:])
c.ping.Unlock()
c.sendmsg("ping", c.ping.pattern[:])
} else {
b := new(bytes.Buffer)
btc.WriteVlen(b, PING_FETCH_BLOCKS)
BlocksMutex.Lock()
for i := uint32(1); ; i++ {
binary.Write(b, binary.LittleEndian, uint32(2))
btg := BlocksToGet[i]
b.Write(btg[:])
if i == PING_FETCH_BLOCKS {
c.ping.lastBlock = btc.NewUint256(btg[:])
break
}
}
BlocksMutex.Unlock()
c.ping.bytes = 0
c.ping.Unlock()
c.sendmsg("getdata", b.Bytes())
//fmt.Println("ping sent", c.ping.lastBlock.String())
}
} else {
c.ping.Unlock()
time.Sleep(10 * time.Millisecond)
}
}
func dl_payment(w http.ResponseWriter, r *http.Request) {
if !ipchecker(r) {
return
}
var err string
r.ParseForm()
if len(r.Form["outcnt"]) == 1 {
var thisbal btc.AllUnspentTx
var pay_cmd string
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])
}
}
}
}
}
}
wallet.UnlockBal()
for i := 1; ; i++ {
is := fmt.Sprint(i)
if len(r.Form["adr"+is]) != 1 {
break
}
if len(r.Form["btc"+is]) != 1 {
break
}
if len(r.Form["adr"+is][0]) > 1 {
addr, er := btc.NewAddrFromString(r.Form["adr"+is][0])
if er == nil {
am, er := strconv.ParseFloat(r.Form["btc"+is][0], 64)
if er == nil && am > 0 {
if pay_cmd == "" {
pay_cmd = "wallet -useallinputs -send "
} else {
pay_cmd += ","
}
pay_cmd += addr.Enc58str + "=" + fmt.Sprintf("%.8f", am)
} else {
err = "Incorrect amount (" + r.Form["btc"+is][0] + ") for Output #" + is
goto error
}
} else {
err = "Incorrect address (" + r.Form["adr"+is][0] + ") for Output #" + is
goto error
}
}
}
if pay_cmd != "" && len(r.Form["txfee"]) == 1 {
pay_cmd += " -fee " + r.Form["txfee"][0]
}
if pay_cmd != "" && len(r.Form["change"]) == 1 && len(r.Form["change"][0]) > 1 {
pay_cmd += " -change " + r.Form["change"][0]
}
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 pay_cmd != "" {
fz, _ = zi.Create("pay_cmd.txt")
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)
}
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)
}
}
}
func show_cached(par string) {
for _, v := range network.CachedBlocks {
fmt.Printf(" * %s -> %s\n", v.Hash.String(), btc.NewUint256(v.ParentHash()).String())
}
}
func main() {
fmt.Println("Gocoin blockchain downloader version", btc.SourcesTag)
parse_command_line()
setup_runtime_vars()
if !add_ip_str(SeedNode) {
println("You need to specify IP address of a fast seed node.")
println("For example run it like this: downloader -s 89.31.102.237")
return
}
load_ips() // other seed nodes
if len(GocoinHomeDir) > 0 && GocoinHomeDir[len(GocoinHomeDir)-1] != os.PathSeparator {
GocoinHomeDir += string(os.PathSeparator)
}
if Testnet {
GocoinHomeDir += "tstnet" + string(os.PathSeparator)
Magic = [4]byte{0x0B, 0x11, 0x09, 0x07}
DefaultTcpPort = 18333
GenesisBlock = btc.NewUint256FromString("000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943")
fmt.Println("Using testnet3")
} else {
GocoinHomeDir += "btcnet" + string(os.PathSeparator)
}
fmt.Println("GocoinHomeDir:", GocoinHomeDir)
utils.LockDatabaseDir(GocoinHomeDir)
defer utils.UnlockDatabaseDir()
StartTime = time.Now()
if open_blockchain() {
fmt.Printf("Blockchain opening aborted\n")
close_blockchain()
return
}
fmt.Println("Blockchain open in", time.Now().Sub(StartTime))
go do_usif()
fmt.Println("Downloading headers from the seed peer", SeedNode)
download_headers()
if GlobalExit {
close_blockchain()
return
}
if DoThePings {
fmt.Println("Tuning to other peers and trying to find the fastest ones.")
fmt.Println("Execute command 'g' to continue to block chain download.")
fmt.Println("Otherwise it will auto-continue after 15 minutes.")
usif_prompt()
do_pings()
fmt.Println("Pings done.")
usif_prompt()
}
var HighestTrustedBlock *btc.Uint256
if LastTrustedBlock == "all" {
HighestTrustedBlock = TheBlockChain.BlockTreeEnd.BlockHash
fmt.Println("Assume all blocks trusted")
} else if LastTrustedBlock == "auto" {
if LastBlockHeight > 6 {
ha := BlocksToGet[LastBlockHeight]
HighestTrustedBlock = btc.NewUint256(ha[:])
fmt.Println("Assume last trusted block as", HighestTrustedBlock.String())
} else {
fmt.Println("-t=auto ignored since LastBlockHeight is only", LastBlockHeight)
}
} else if LastTrustedBlock != "" {
HighestTrustedBlock = btc.NewUint256FromString(LastTrustedBlock)
}
if HighestTrustedBlock != nil {
for k, h := range BlocksToGet {
if bytes.Equal(h[:], HighestTrustedBlock.Hash[:]) {
TrustUpTo = k
fmt.Println("All the blocks up to", TrustUpTo, "are assumed trusted")
break
}
}
} else {
fmt.Println("None of the blocks is to be assumed trusted (it will be very slow).")
}
for n := TheBlockChain.BlockTreeEnd; n != nil && n.Height > TheBlockChain.BlockTreeEnd.Height-BSLEN; n = n.Parent {
blocksize_update(int(n.BlockSize))
}
fmt.Println("Downloading blocks - BlocksToGet:", len(BlocksToGet), " avg_size:", avg_block_size())
usif_prompt()
StartTime = time.Now()
get_blocks()
fmt.Println("Up to block", TheBlockChain.BlockTreeEnd.Height, "in", time.Now().Sub(StartTime).String())
close_all_connections()
close_blockchain()
return
}
