Beispiel #1
0
func (a *Anchor) saveToAnchorChain(dirBlockInfo *dbInfo.DirBlockInfo) {
	anchorLog.Debug("in saveToAnchorChain")
	anchorRec := new(AnchorRecord)
	anchorRec.AnchorRecordVer = 1
	anchorRec.DBHeight = dirBlockInfo.GetDBHeight()
	anchorRec.KeyMR = dirBlockInfo.GetDBMerkleRoot().String()
	anchorRec.RecordHeight = uint32(a.state.GetDBHeight() + 1) // need the next block height
	anchorRec.Bitcoin.Address = a.defaultAddress.String()
	anchorRec.Bitcoin.TXID = dirBlockInfo.GetBTCTxHash().(*primitives.Hash).BTCString()
	anchorRec.Bitcoin.BlockHeight = dirBlockInfo.BTCBlockHeight
	anchorRec.Bitcoin.BlockHash = dirBlockInfo.BTCBlockHash.(*primitives.Hash).BTCString()
	anchorRec.Bitcoin.Offset = dirBlockInfo.BTCTxOffset
	anchorLog.Info("before submitting Entry To AnchorChain. anchor.record: " + spew.Sdump(anchorRec))

	err := a.submitEntryToAnchorChain(anchorRec)
	if err != nil {
		anchorLog.Error("Error in writing anchor into anchor chain: ", err.Error())
	}
}
Beispiel #2
0
func (a *Anchor) checkConfirmations(dirBlockInfo *dbInfo.DirBlockInfo, index int) error {
	anchorLog.Debug("check Confirmations for btc tx: ", toShaHash(dirBlockInfo.GetBTCTxHash()).String())
	txResult, err := a.wclient.GetTransaction(toShaHash(dirBlockInfo.GetBTCTxHash()))
	if err != nil {
		anchorLog.Debugf(err.Error())
		return err
	}
	anchorLog.Debugf("GetTransactionResult: %s\n", spew.Sdump(txResult))
	if txResult.Confirmations >= int64(a.confirmationsNeeded) {
		btcBlockHash, _ := wire.NewShaHashFromStr(txResult.BlockHash)
		var rewrite = false
		// Either the call back is not recorded in case of BTCBlockHash is zero hash,
		// or bad things like re-organization of btc main chain happened
		if bytes.Compare(dirBlockInfo.BTCBlockHash.Bytes(), btcBlockHash.Bytes()) != 0 {
			anchorLog.Debugf("BTCBlockHash changed: original BTCBlockHeight=%d, original BTCBlockHash=%s, original tx offset=%d\n", dirBlockInfo.BTCBlockHeight, toShaHash(dirBlockInfo.BTCBlockHash).String(), dirBlockInfo.BTCTxOffset)
			dirBlockInfo.BTCBlockHash = toHash(btcBlockHash)
			btcBlock, err := a.wclient.GetBlockVerbose(btcBlockHash, true)
			if err != nil {
				anchorLog.Debugf(err.Error())
			}
			if btcBlock.Height > 0 {
				dirBlockInfo.BTCBlockHeight = int32(btcBlock.Height)
			}
			anchorLog.Debugf("BTCBlockHash changed: new BTCBlockHeight=%d, new BTCBlockHash=%s, btcBlockVerbose.Height=%d\n", dirBlockInfo.BTCBlockHeight, btcBlockHash.String(), btcBlock.Height)
			rewrite = true
		}
		dirBlockInfo.BTCConfirmed = true // needs confirmationsNeeded (20) to be confirmed.
		dirBlockInfo.SetTimestamp(primitives.NewTimestampNow())
		a.db.SaveDirBlockInfo(dirBlockInfo)
		a.dirBlockInfoSlice = append(a.dirBlockInfoSlice[:index], a.dirBlockInfoSlice[index+1:]...) //delete it
		anchorLog.Debugf("Fully confirmed %d times. txid=%s, dirblockInfo=%s\n", txResult.Confirmations, txResult.TxID, spew.Sdump(dirBlockInfo))
		if rewrite {
			anchorLog.Debug("rewrite to anchor chain: ", spew.Sdump(dirBlockInfo))
			a.saveToAnchorChain(dirBlockInfo)
		}
	}
	return nil
}