func verifyChain(db btcdb.Db, level, depth int32) error {
_, curheight64, err := db.NewestSha()
if err != nil {
rpcsLog.Errorf("Verify is unable to fetch current block "+
"height: %v", err)
}
curheight := int32(curheight64)
if depth > curheight {
depth = curheight
}
for height := curheight; height > (curheight - depth); height-- {
// Level 0 just looks up the block.
sha, err := db.FetchBlockShaByHeight(int64(height))
if err != nil {
rpcsLog.Errorf("Verify is unable to fetch block at "+
"height %d: %v", height, err)
return err
}
block, err := db.FetchBlockBySha(sha)
if err != nil {
rpcsLog.Errorf("Verify is unable to fetch block at "+
"sha %v height %d: %v", sha, height, err)
return err
}
// Level 1 does basic chain sanity checks.
if level > 0 {
err := btcchain.CheckBlockSanity(block,
activeNetParams.powLimit)
if err != nil {
rpcsLog.Errorf("Verify is unable to "+
"validate block at sha %v height "+
"%d: %v", sha, height, err)
return err
}
}
}
rpcsLog.Infof("Chain verify completed successfully")
return nil
}
func DumpBlock(db btcdb.Db, height int64, fo io.Writer, rflag bool, fflag bool, tflag bool) error {
sha, err := db.FetchBlockShaByHeight(height)
if err != nil {
return err
}
blk, err := db.FetchBlockBySha(sha)
if err != nil {
log.Warnf("Failed to fetch block %v, err %v", sha, err)
return err
}
rblk, err := blk.Bytes()
blkid := blk.Height()
if rflag {
log.Infof("Block %v depth %v %v", sha, blkid, spew.Sdump(rblk))
}
mblk := blk.MsgBlock()
if fflag {
log.Infof("Block %v depth %v %v", sha, blkid, spew.Sdump(mblk))
}
if tflag {
log.Infof("Num transactions %v", len(mblk.Transactions))
for i, tx := range mblk.Transactions {
txsha, err := tx.TxSha()
if err != nil {
continue
}
log.Infof("tx %v: %v", i, &txsha)
}
}
if fo != nil {
// generate and write header values
binary.Write(fo, binary.LittleEndian, uint32(btcwire.MainNet))
binary.Write(fo, binary.LittleEndian, uint32(len(rblk)))
// write block
fo.Write(rblk)
}
return nil
}
func fetch(db btcdb.Db, rd *rData) error {
sha, err := db.FetchBlockShaByHeight(rd.in.H)
if err != nil {
return fmt.Errorf("failed FetchBlockShaByHeight(%v): %v\n", rd.in.H, err)
}
blk, err := db.FetchBlockBySha(sha)
if err != nil {
return fmt.Errorf("failed FetchBlockBySha(%v) - h %v: %v\n", sha, rd.in.H, err)
}
tx := blk.Transactions()[rd.in.Tx]
rd.blkSha = sha
rd.blk = blk
rd.tx = tx
rd.txInIndex = rd.in.TxIn
rd.txIn = tx.MsgTx().TxIn[rd.in.TxIn]
txPrevList, err := db.FetchTxBySha(&rd.txIn.PreviousOutPoint.Hash)
if err != nil {
return fmt.Errorf("failed FetchTxBySha(%v) - h %v: %v\n",
rd.txIn.PreviousOutPoint.Hash, rd.in.H, err)
}
if len(txPrevList) != 1 {
return fmt.Errorf("not single FetchTxBySha(%v) - h %v: %v\n",
rd.txIn.PreviousOutPoint.Hash, rd.in.H, len(txPrevList))
}
blkPrev, err := db.FetchBlockBySha(txPrevList[0].BlkSha)
if err != nil {
return fmt.Errorf("failed prev FetchBlockBySha(%v) - h %v: %v\n",
txPrevList[0].BlkSha, rd.in.H, err)
}
rd.txPrev = txPrevList[0]
rd.txPrevOutIndex = rd.txIn.PreviousOutPoint.Index
rd.txPrevOut = rd.txPrev.Tx.TxOut[rd.txPrevOutIndex]
rd.blkPrev = blkPrev
return nil
}
func getSha(db btcdb.Db, str string) (btcwire.ShaHash, error) {
argtype, idx, sha, err := parsesha(str)
if err != nil {
log.Warnf("unable to decode [%v] %v", str, err)
return btcwire.ShaHash{}, err
}
switch argtype {
case ArgSha:
// nothing to do
case ArgHeight:
sha, err = db.FetchBlockShaByHeight(idx)
if err != nil {
return btcwire.ShaHash{}, err
}
}
if sha == nil {
fmt.Printf("wtf sha is nil but err is %v", err)
}
return *sha, nil
}
func getSignatures(maxHeigth int64, log btclog.Logger, db btcdb.Db) chan *rData {
heigthChan := make(chan int64)
blockChan := make(chan *btcutil.Block)
sigChan := make(chan *rData)
go func() {
for h := int64(0); h < maxHeigth; h++ {
heigthChan <- h
}
close(heigthChan)
}()
var blockWg sync.WaitGroup
for i := 0; i <= 10; i++ {
blockWg.Add(1)
go func() {
for h := range heigthChan {
sha, err := db.FetchBlockShaByHeight(h)
if err != nil {
log.Warnf("failed FetchBlockShaByHeight(%v): %v", h, err)
return
}
blk, err := db.FetchBlockBySha(sha)
if err != nil {
log.Warnf("failed FetchBlockBySha(%v) - h %v: %v", sha, h, err)
return
}
blockChan <- blk
}
blockWg.Done()
}()
}
go func() {
blockWg.Wait()
close(blockChan)
}()
var sigWg sync.WaitGroup
for i := 0; i <= 10; i++ {
sigWg.Add(1)
go func() {
for blk := range blockChan {
mblk := blk.MsgBlock()
for i, tx := range mblk.Transactions {
if btcchain.IsCoinBase(btcutil.NewTx(tx)) {
continue
}
for t, txin := range tx.TxIn {
dataSlice, err := btcscript.PushedData(txin.SignatureScript)
if err != nil {
continue
}
for d, data := range dataSlice {
signature, err := btcec.ParseSignature(data, btcec.S256())
if err != nil {
continue
}
sigChan <- &rData{
sig: signature,
H: blk.Height(),
Tx: i,
TxIn: t,
Data: d,
}
}
}
}
}
sigWg.Done()
}()
}
go func() {
sigWg.Wait()
close(sigChan)
}()
return sigChan
}
func testFetch(t *testing.T, db btcdb.Db, shas []btcwire.ShaHash,
sync string) {
// Test the newest sha is what we expect and call it twice to ensure
// caching is working working properly.
numShas := int64(len(shas))
newestSha := shas[numShas-1]
newestBlockID := int64(numShas)
testNewestSha(t, db, newestSha, newestBlockID, sync)
testNewestSha(t, db, newestSha, newestBlockID, sync+" cached")
for i, sha := range shas {
// Add one for genesis block skew.
i = i + 1
// Ensure the sha exists in the db as expected.
if !db.ExistsSha(&sha) {
t.Errorf("testSha %d doesn't exists (%s)", i, sync)
break
}
// Fetch the sha from the db and ensure all fields are expected
// values.
buf, pver, idx, err := sqlite3.FetchSha(db, &sha)
if err != nil {
t.Errorf("Failed to fetch testSha %d (%s)", i, sync)
}
if !bytes.Equal(zeroBlock, buf) {
t.Errorf("testSha %d incorrect block return (%s)", i,
sync)
}
if pver != 1 {
t.Errorf("pver is %d and not 1 for testSha %d (%s)",
pver, i, sync)
}
if idx != int64(i) {
t.Errorf("index isn't as expected %d vs %d (%s)",
idx, i, sync)
}
// Fetch the sha by index and ensure it matches.
tsha, err := db.FetchBlockShaByHeight(int64(i))
if err != nil {
t.Errorf("can't fetch sha at index %d: %v", i, err)
continue
}
if !tsha.IsEqual(&sha) {
t.Errorf("sha for index %d isn't shas[%d]", i, i)
}
}
endBlockID := numShas + 1
midBlockID := endBlockID / 2
fetchIdxTests := []fetchIdxTest{
// All shas.
{1, btcdb.AllShas, shas, "fetch all shas"},
//// All shas using known bounds.
{1, endBlockID, shas, "fetch all shas2"},
// Partial list starting at beginning.
{1, midBlockID, shas[:midBlockID-1], "fetch first half"},
// Partial list ending at end.
{midBlockID, endBlockID, shas[midBlockID-1 : endBlockID-1],
"fetch second half"},
// Nonexistent off the end.
{endBlockID, endBlockID * 2, []btcwire.ShaHash{},
"fetch nonexistent"},
}
for _, test := range fetchIdxTests {
t.Logf("numSha: %d - Fetch from %d to %d\n", numShas, test.start, test.end)
if shalist, err := db.FetchHeightRange(test.start, test.end); err == nil {
compareArray(t, shalist, test.exp, test.test, sync)
} else {
t.Errorf("failed to fetch index range for %s (%s)",
test.test, sync)
}
}
// Try and fetch nonexistent sha.
if db.ExistsSha(&badSha) {
t.Errorf("nonexistent sha exists (%s)!", sync)
}
_, _, _, err := sqlite3.FetchSha(db, &badSha)
if err == nil {
t.Errorf("Success when fetching a bad sha! (%s)", sync)
}
// XXX if not check to see it is the right value?
testIterator(t, db, shas, sync)
}
