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multi: add bitcoind drivers and tests

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This commit is contained in:
Alex
2017-11-09 17:30:20 -07:00
committed by Olaoluwa Osuntokun
parent 244ae4b571
commit 187f59556a
13 changed files with 2138 additions and 241 deletions
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84
lnwallet/btcwallet/blockchain.go
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@@ -29,23 +29,7 @@ var (
//
// This method is a part of the lnwallet.BlockChainIO interface.
func (b *BtcWallet) GetBestBlock() (*chainhash.Hash, int32, error) {
switch backend := b.chain.(type) {
case *chain.NeutrinoClient:
header, height, err := backend.CS.BlockHeaders.ChainTip()
if err != nil {
return nil, -1, err
}
blockHash := header.BlockHash()
return &blockHash, int32(height), nil
case *chain.RPCClient:
return backend.GetBestBlock()
default:
return nil, -1, fmt.Errorf("unknown backend")
}
return b.chain.GetBestBlock()
}
// GetUtxo returns the original output referenced by the passed outpoint.
@@ -100,6 +84,26 @@ func (b *BtcWallet) GetUtxo(op *wire.OutPoint, heightHint uint32) (*wire.TxOut,
PkScript: pkScript,
}, nil
case *chain.BitcoindClient:
txout, err := backend.GetTxOut(&op.Hash, op.Index, false)
if err != nil {
return nil, err
} else if txout == nil {
return nil, ErrOutputSpent
}
pkScript, err := hex.DecodeString(txout.ScriptPubKey.Hex)
if err != nil {
return nil, err
}
return &wire.TxOut{
// Sadly, gettxout returns the output value in BTC
// instead of satoshis.
Value: int64(txout.Value * 1e8),
PkScript: pkScript,
}, nil
default:
return nil, fmt.Errorf("unknown backend")
}
@@ -109,27 +113,7 @@ func (b *BtcWallet) GetUtxo(op *wire.OutPoint, heightHint uint32) (*wire.TxOut,
//
// This method is a part of the lnwallet.BlockChainIO interface.
func (b *BtcWallet) GetBlock(blockHash *chainhash.Hash) (*wire.MsgBlock, error) {
switch backend := b.chain.(type) {
case *chain.NeutrinoClient:
block, err := backend.CS.GetBlockFromNetwork(*blockHash)
if err != nil {
return nil, err
}
return block.MsgBlock(), nil
case *chain.RPCClient:
block, err := backend.GetBlock(blockHash)
if err != nil {
return nil, err
}
return block, nil
default:
return nil, fmt.Errorf("unknown backend")
}
return b.chain.GetBlock(blockHash)
}
// GetBlockHash returns the hash of the block in the best blockchain at the
@@ -137,29 +121,7 @@ func (b *BtcWallet) GetBlock(blockHash *chainhash.Hash) (*wire.MsgBlock, error)
//
// This method is a part of the lnwallet.BlockChainIO interface.
func (b *BtcWallet) GetBlockHash(blockHeight int64) (*chainhash.Hash, error) {
switch backend := b.chain.(type) {
case *chain.NeutrinoClient:
height := uint32(blockHeight)
blockHeader, err := backend.CS.BlockHeaders.FetchHeaderByHeight(height)
if err != nil {
return nil, err
}
blockHash := blockHeader.BlockHash()
return &blockHash, nil
case *chain.RPCClient:
blockHash, err := backend.GetBlockHash(blockHeight)
if err != nil {
return nil, err
}
return blockHash, nil
default:
return nil, fmt.Errorf("unknown backend")
}
return b.chain.GetBlockHash(blockHeight)
}
// A compile time check to ensure that BtcWallet implements the BlockChainIO