func sanityCheck(hash *common.Hash) (*common.DirBlockInfo, error) {
dirBlockInfo := dirBlockInfoMap[hash.String()]
if dirBlockInfo == nil {
s := fmt.Sprintf("Anchor Error: hash %s does not exist in dirBlockInfoMap.\n", hash.String())
anchorLog.Error(s)
return nil, errors.New(s)
}
if dirBlockInfo.BTCConfirmed {
s := fmt.Sprintf("Anchor Warning: hash %s has already been confirmed in btc block chain.\n", hash.String())
anchorLog.Error(s)
return nil, errors.New(s)
}
//The re-anchoring is allowed now.
//if !common.NewHash().IsSameAs(dirBlockInfo.BTCTxHash) {
//s := fmt.Sprintf("Anchor Warning: hash %s has already been anchored but not confirmed. btc tx hash is %s\n", hash.String(), dirBlockInfo.BTCTxHash.String())
//anchorLog.Error(s)
//return nil, errors.New(s)
//}
if dclient == nil || wclient == nil {
s := fmt.Sprintf("\n\n$$$ WARNING: rpc clients and/or wallet are not initiated successfully. No anchoring for now.\n")
anchorLog.Warning(s)
return nil, errors.New(s)
}
if len(balances) == 0 {
anchorLog.Warning("len(balances) == 0, start rescan UTXO *** ")
updateUTXO()
}
if len(balances) == 0 {
s := fmt.Sprintf("\n\n$$$ WARNING: No balance in your wallet. No anchoring for now.\n")
anchorLog.Warning(s)
return nil, errors.New(s)
}
return dirBlockInfo, nil
}
// Validate Entry Block by merkle root
func validateEBlockByMR(cid *common.Hash, mr *common.Hash) error {
eb, err := db.FetchEBlockByMR(mr)
if err != nil {
return err
}
if eb == nil {
return errors.New("Entry block not found in db for merkle root: " + mr.String())
}
keyMR, err := eb.KeyMR()
if err != nil {
return err
}
if !mr.IsSameAs(keyMR) {
return errors.New("Entry block's merkle root does not match with: " + mr.String())
}
for _, ebEntry := range eb.Body.EBEntries {
if !bytes.Equal(ebEntry.Bytes()[:31], common.ZERO_HASH[:31]) {
entry, _ := db.FetchEntryByHash(ebEntry)
if entry == nil {
return errors.New("Entry not found in db for entry hash: " + ebEntry.String())
}
} // Else ... we could do a bit more validation of the minute markers.
}
return nil
}
// SendRawTransactionToBTC is the main function used to anchor factom
// dir block hash to bitcoin blockchain
func SendRawTransactionToBTC(hash *common.Hash, blockHeight uint32) (*wire.ShaHash, error) {
anchorLog.Debug("SendRawTransactionToBTC: hash=", hash.String(), ", dir block height=", blockHeight) //strconv.FormatUint(blockHeight, 10))
dirBlockInfo, err := sanityCheck(hash)
if err != nil {
return nil, err
}
return doTransaction(hash, blockHeight, dirBlockInfo)
}
// Validate Admin Block by merkle root
func validateABlockByMR(mr *common.Hash) error {
b, _ := db.FetchABlockByHash(mr)
if b == nil {
return errors.New("Admin block not found in db for merkle root: " + mr.String())
}
return nil
}
// Validate Entry Credit Block by merkle root
func validateCBlockByMR(mr *common.Hash) error {
cb, _ := db.FetchECBlockByHash(mr)
if cb == nil {
return errors.New("Entry Credit block not found in db for merkle root: " + mr.String())
}
return nil
}
// Validate FBlock by merkle root
func validateFBlockByMR(mr *common.Hash) error {
b, _ := db.FetchFBlockByHash(mr)
if b == nil {
return errors.New("Factoid block not found in db for merkle root: \n" + mr.String())
}
// check that we used the KeyMR to store the block...
if !bytes.Equal(b.GetKeyMR().Bytes(), mr.Bytes()) {
return fmt.Errorf("Factoid block match failure: block %d \n%s\n%s",
b.GetDBHeight(),
"Key in the database: "+mr.String(),
"Hash of the blk found: "+b.GetKeyMR().String())
}
return nil
}
// FetchDBlockByHash gets an entry by hash from the database.
func (db *LevelDb) FetchDBlockByHash(dBlockHash *common.Hash) (*common.DirectoryBlock, error) {
var key = []byte{byte(TBL_DB)}
key = append(key, dBlockHash.Bytes()...)
db.dbLock.RLock()
data, _ := db.lDb.Get(key, db.ro)
db.dbLock.RUnlock()
dBlock := common.NewDBlock()
if data == nil {
return nil, errors.New("DBlock not found for Hash: " + dBlockHash.String())
}
_, err := dBlock.UnmarshalBinaryData(data)
if err != nil {
return nil, err
}
dBlock.DBHash = dBlockHash
return dBlock, nil
}
func sanityCheck(hash *common.Hash) (*common.DirBlockInfo, error) {
dirBlockInfo := dirBlockInfoMap[hash.String()]
if dirBlockInfo == nil {
s := fmt.Sprintf("Anchor Error: hash %s does not exist in dirBlockInfoMap.\n", hash.String())
anchorLog.Error(s)
return nil, errors.New(s)
}
if dirBlockInfo.BTCConfirmed {
s := fmt.Sprintf("Anchor Warning: hash %s has already been confirmed in btc block chain.\n", hash.String())
anchorLog.Error(s)
return nil, errors.New(s)
}
if !common.NewHash().IsSameAs(dirBlockInfo.BTCTxHash) {
s := fmt.Sprintf("Anchor Warning: hash %s has already been anchored but not confirmed. btc tx hash is %s\n", hash.String(), dirBlockInfo.BTCTxHash.String())
anchorLog.Error(s)
return nil, errors.New(s)
}
if dclient == nil || wclient == nil || balances == nil {
s := fmt.Sprintf("\n\n$$$ WARNING: rpc clients and/or wallet are not initiated successfully. No anchoring for now.\n")
anchorLog.Warning(s)
return nil, errors.New(s)
}
return dirBlockInfo, nil
}
func getPrePaidChainKey(entryHash *common.Hash, chainIDHash *common.Hash) string {
return chainIDHash.String() + entryHash.String()
}