func testGetReceipt(t *testing.T, protocol int) {
// Define three accounts to simulate transactions with
acc1Key, _ := crypto.HexToECDSA("8a1f9a8f95be41cd7ccb6168179afb4504aefe388d1e14474d32c45c72ce7b7a")
acc2Key, _ := crypto.HexToECDSA("49a7b37aa6f6645917e7b807e9d1c00d4fa71f18343b0d4122a4d2df64dd6fee")
acc1Addr := crypto.PubkeyToAddress(acc1Key.PublicKey)
acc2Addr := crypto.PubkeyToAddress(acc2Key.PublicKey)
// Create a chain generator with some simple transactions (blatantly stolen from @fjl/chain_makerts_test)
generator := func(i int, block *core.BlockGen) {
switch i {
case 0:
// In block 1, the test bank sends account #1 some ether.
tx, _ := types.NewTransaction(block.TxNonce(testBankAddress), acc1Addr, big.NewInt(10000), params.TxGas, nil, nil).SignECDSA(testBankKey)
block.AddTx(tx)
case 1:
// In block 2, the test bank sends some more ether to account #1.
// acc1Addr passes it on to account #2.
tx1, _ := types.NewTransaction(block.TxNonce(testBankAddress), acc1Addr, big.NewInt(1000), params.TxGas, nil, nil).SignECDSA(testBankKey)
tx2, _ := types.NewTransaction(block.TxNonce(acc1Addr), acc2Addr, big.NewInt(1000), params.TxGas, nil, nil).SignECDSA(acc1Key)
block.AddTx(tx1)
block.AddTx(tx2)
case 2:
// Block 3 is empty but was mined by account #2.
block.SetCoinbase(acc2Addr)
block.SetExtra([]byte("yeehaw"))
case 3:
// Block 4 includes blocks 2 and 3 as uncle headers (with modified extra data).
b2 := block.PrevBlock(1).Header()
b2.Extra = []byte("foo")
block.AddUncle(b2)
b3 := block.PrevBlock(2).Header()
b3.Extra = []byte("foo")
block.AddUncle(b3)
}
}
// Assemble the test environment
pm := newTestProtocolManager(4, generator, nil)
peer, _ := newTestPeer("peer", protocol, pm, true)
defer peer.close()
// Collect the hashes to request, and the response to expect
hashes := []common.Hash{}
for i := uint64(0); i <= pm.chainman.CurrentBlock().NumberU64(); i++ {
for _, tx := range pm.chainman.GetBlockByNumber(i).Transactions() {
hashes = append(hashes, tx.Hash())
}
}
receipts := make([]*types.Receipt, len(hashes))
for i, hash := range hashes {
receipts[i] = core.GetReceipt(pm.chaindb, hash)
}
// Send the hash request and verify the response
p2p.Send(peer.app, 0x0f, hashes)
if err := p2p.ExpectMsg(peer.app, 0x10, receipts); err != nil {
t.Errorf("receipts mismatch: %v", err)
}
}
func (self *XEth) GetTxReceipt(txhash common.Hash) *types.Receipt {
return core.GetReceipt(self.backend.ExtraDb(), txhash)
}
// handleMsg is invoked whenever an inbound message is received from a remote
// peer. The remote connection is torn down upon returning any error.
func (pm *ProtocolManager) handleMsg(p *peer) error {
// Read the next message from the remote peer, and ensure it's fully consumed
msg, err := p.rw.ReadMsg()
if err != nil {
return err
}
if msg.Size > ProtocolMaxMsgSize {
return errResp(ErrMsgTooLarge, "%v > %v", msg.Size, ProtocolMaxMsgSize)
}
defer msg.Discard()
// Handle the message depending on its contents
switch {
case msg.Code == StatusMsg:
// Status messages should never arrive after the handshake
return errResp(ErrExtraStatusMsg, "uncontrolled status message")
case p.version < eth62 && msg.Code == GetBlockHashesMsg:
// Retrieve the number of hashes to return and from which origin hash
var request getBlockHashesData
if err := msg.Decode(&request); err != nil {
return errResp(ErrDecode, "%v: %v", msg, err)
}
if request.Amount > uint64(downloader.MaxHashFetch) {
request.Amount = uint64(downloader.MaxHashFetch)
}
// Retrieve the hashes from the block chain and return them
hashes := pm.chainman.GetBlockHashesFromHash(request.Hash, request.Amount)
if len(hashes) == 0 {
glog.V(logger.Debug).Infof("invalid block hash %x", request.Hash.Bytes()[:4])
}
return p.SendBlockHashes(hashes)
case p.version < eth62 && msg.Code == GetBlockHashesFromNumberMsg:
// Retrieve and decode the number of hashes to return and from which origin number
var request getBlockHashesFromNumberData
if err := msg.Decode(&request); err != nil {
return errResp(ErrDecode, "%v: %v", msg, err)
}
if request.Amount > uint64(downloader.MaxHashFetch) {
request.Amount = uint64(downloader.MaxHashFetch)
}
// Calculate the last block that should be retrieved, and short circuit if unavailable
last := pm.chainman.GetBlockByNumber(request.Number + request.Amount - 1)
if last == nil {
last = pm.chainman.CurrentBlock()
request.Amount = last.NumberU64() - request.Number + 1
}
if last.NumberU64() < request.Number {
return p.SendBlockHashes(nil)
}
// Retrieve the hashes from the last block backwards, reverse and return
hashes := []common.Hash{last.Hash()}
hashes = append(hashes, pm.chainman.GetBlockHashesFromHash(last.Hash(), request.Amount-1)...)
for i := 0; i < len(hashes)/2; i++ {
hashes[i], hashes[len(hashes)-1-i] = hashes[len(hashes)-1-i], hashes[i]
}
return p.SendBlockHashes(hashes)
case p.version < eth62 && msg.Code == BlockHashesMsg:
// A batch of hashes arrived to one of our previous requests
var hashes []common.Hash
if err := msg.Decode(&hashes); err != nil {
break
}
// Deliver them all to the downloader for queuing
err := pm.downloader.DeliverHashes61(p.id, hashes)
if err != nil {
glog.V(logger.Debug).Infoln(err)
}
case p.version < eth62 && msg.Code == GetBlocksMsg:
// Decode the retrieval message
msgStream := rlp.NewStream(msg.Payload, uint64(msg.Size))
if _, err := msgStream.List(); err != nil {
return err
}
// Gather blocks until the fetch or network limits is reached
var (
hash common.Hash
bytes common.StorageSize
blocks []*types.Block
)
for len(blocks) < downloader.MaxBlockFetch && bytes < softResponseLimit {
//Retrieve the hash of the next block
err := msgStream.Decode(&hash)
if err == rlp.EOL {
break
} else if err != nil {
return errResp(ErrDecode, "msg %v: %v", msg, err)
}
// Retrieve the requested block, stopping if enough was found
if block := pm.chainman.GetBlock(hash); block != nil {
blocks = append(blocks, block)
bytes += block.Size()
}
}
return p.SendBlocks(blocks)
case p.version < eth62 && msg.Code == BlocksMsg:
// Decode the arrived block message
var blocks []*types.Block
if err := msg.Decode(&blocks); err != nil {
glog.V(logger.Detail).Infoln("Decode error", err)
blocks = nil
}
// Update the receive timestamp of each block
for _, block := range blocks {
block.ReceivedAt = msg.ReceivedAt
}
// Filter out any explicitly requested blocks, deliver the rest to the downloader
if blocks := pm.fetcher.FilterBlocks(blocks); len(blocks) > 0 {
pm.downloader.DeliverBlocks61(p.id, blocks)
}
// Block header query, collect the requested headers and reply
case p.version >= eth62 && msg.Code == GetBlockHeadersMsg:
// Decode the complex header query
var query getBlockHeadersData
if err := msg.Decode(&query); err != nil {
return errResp(ErrDecode, "%v: %v", msg, err)
}
// Gather headers until the fetch or network limits is reached
var (
bytes common.StorageSize
headers []*types.Header
unknown bool
)
for !unknown && len(headers) < int(query.Amount) && bytes < softResponseLimit && len(headers) < downloader.MaxHeaderFetch {
// Retrieve the next header satisfying the query
var origin *types.Header
if query.Origin.Hash != (common.Hash{}) {
origin = pm.chainman.GetHeader(query.Origin.Hash)
} else {
origin = pm.chainman.GetHeaderByNumber(query.Origin.Number)
}
if origin == nil {
break
}
headers = append(headers, origin)
bytes += estHeaderRlpSize
// Advance to the next header of the query
switch {
case query.Origin.Hash != (common.Hash{}) && query.Reverse:
// Hash based traversal towards the genesis block
for i := 0; i < int(query.Skip)+1; i++ {
if header := pm.chainman.GetHeader(query.Origin.Hash); header != nil {
query.Origin.Hash = header.ParentHash
} else {
unknown = true
break
}
}
case query.Origin.Hash != (common.Hash{}) && !query.Reverse:
// Hash based traversal towards the leaf block
if header := pm.chainman.GetHeaderByNumber(origin.Number.Uint64() + query.Skip + 1); header != nil {
if pm.chainman.GetBlockHashesFromHash(header.Hash(), query.Skip+1)[query.Skip] == query.Origin.Hash {
query.Origin.Hash = header.Hash()
} else {
unknown = true
}
} else {
unknown = true
}
case query.Reverse:
// Number based traversal towards the genesis block
if query.Origin.Number >= query.Skip+1 {
query.Origin.Number -= (query.Skip + 1)
} else {
unknown = true
}
case !query.Reverse:
// Number based traversal towards the leaf block
query.Origin.Number += (query.Skip + 1)
}
}
return p.SendBlockHeaders(headers)
case p.version >= eth62 && msg.Code == BlockHeadersMsg:
// A batch of headers arrived to one of our previous requests
var headers []*types.Header
if err := msg.Decode(&headers); err != nil {
return errResp(ErrDecode, "msg %v: %v", msg, err)
}
// Filter out any explicitly requested headers, deliver the rest to the downloader
filter := len(headers) == 1
if filter {
headers = pm.fetcher.FilterHeaders(headers, time.Now())
}
if len(headers) > 0 || !filter {
err := pm.downloader.DeliverHeaders(p.id, headers)
if err != nil {
glog.V(logger.Debug).Infoln(err)
}
}
case p.version >= eth62 && msg.Code == BlockBodiesMsg:
// A batch of block bodies arrived to one of our previous requests
var request blockBodiesData
if err := msg.Decode(&request); err != nil {
return errResp(ErrDecode, "msg %v: %v", msg, err)
}
// Deliver them all to the downloader for queuing
trasactions := make([][]*types.Transaction, len(request))
uncles := make([][]*types.Header, len(request))
for i, body := range request {
trasactions[i] = body.Transactions
uncles[i] = body.Uncles
}
// Filter out any explicitly requested bodies, deliver the rest to the downloader
if trasactions, uncles := pm.fetcher.FilterBodies(trasactions, uncles, time.Now()); len(trasactions) > 0 || len(uncles) > 0 {
err := pm.downloader.DeliverBodies(p.id, trasactions, uncles)
if err != nil {
glog.V(logger.Debug).Infoln(err)
}
}
case p.version >= eth62 && msg.Code == GetBlockBodiesMsg:
// Decode the retrieval message
msgStream := rlp.NewStream(msg.Payload, uint64(msg.Size))
if _, err := msgStream.List(); err != nil {
return err
}
// Gather blocks until the fetch or network limits is reached
var (
hash common.Hash
bytes int
bodies []rlp.RawValue
)
for bytes < softResponseLimit && len(bodies) < downloader.MaxBlockFetch {
// Retrieve the hash of the next block
if err := msgStream.Decode(&hash); err == rlp.EOL {
break
} else if err != nil {
return errResp(ErrDecode, "msg %v: %v", msg, err)
}
// Retrieve the requested block body, stopping if enough was found
if data := pm.chainman.GetBodyRLP(hash); len(data) != 0 {
bodies = append(bodies, data)
bytes += len(data)
}
}
return p.SendBlockBodiesRLP(bodies)
case p.version >= eth63 && msg.Code == GetNodeDataMsg:
// Decode the retrieval message
msgStream := rlp.NewStream(msg.Payload, uint64(msg.Size))
if _, err := msgStream.List(); err != nil {
return err
}
// Gather state data until the fetch or network limits is reached
var (
hash common.Hash
bytes int
data [][]byte
)
for bytes < softResponseLimit && len(data) < downloader.MaxStateFetch {
// Retrieve the hash of the next state entry
if err := msgStream.Decode(&hash); err == rlp.EOL {
break
} else if err != nil {
return errResp(ErrDecode, "msg %v: %v", msg, err)
}
// Retrieve the requested state entry, stopping if enough was found
if entry, err := pm.chaindb.Get(hash.Bytes()); err == nil {
data = append(data, entry)
bytes += len(entry)
}
}
return p.SendNodeData(data)
case p.version >= eth63 && msg.Code == GetReceiptsMsg:
// Decode the retrieval message
msgStream := rlp.NewStream(msg.Payload, uint64(msg.Size))
if _, err := msgStream.List(); err != nil {
return err
}
// Gather state data until the fetch or network limits is reached
var (
hash common.Hash
bytes int
receipts []*types.Receipt
)
for bytes < softResponseLimit && len(receipts) < downloader.MaxReceiptsFetch {
// Retrieve the hash of the next transaction receipt
if err := msgStream.Decode(&hash); err == rlp.EOL {
break
} else if err != nil {
return errResp(ErrDecode, "msg %v: %v", msg, err)
}
// Retrieve the requested receipt, stopping if enough was found
if receipt := core.GetReceipt(pm.chaindb, hash); receipt != nil {
receipts = append(receipts, receipt)
bytes += len(receipt.RlpEncode())
}
}
return p.SendReceipts(receipts)
case msg.Code == NewBlockHashesMsg:
// Retrieve and deseralize the remote new block hashes notification
type announce struct {
Hash common.Hash
Number uint64
}
var announces = []announce{}
if p.version < eth62 {
// We're running the old protocol, make block number unknown (0)
var hashes []common.Hash
if err := msg.Decode(&hashes); err != nil {
return errResp(ErrDecode, "%v: %v", msg, err)
}
for _, hash := range hashes {
announces = append(announces, announce{hash, 0})
}
} else {
// Otherwise extract both block hash and number
var request newBlockHashesData
if err := msg.Decode(&request); err != nil {
return errResp(ErrDecode, "%v: %v", msg, err)
}
for _, block := range request {
announces = append(announces, announce{block.Hash, block.Number})
}
}
// Mark the hashes as present at the remote node
for _, block := range announces {
p.MarkBlock(block.Hash)
p.SetHead(block.Hash)
}
// Schedule all the unknown hashes for retrieval
unknown := make([]announce, 0, len(announces))
for _, block := range announces {
if !pm.chainman.HasBlock(block.Hash) {
unknown = append(unknown, block)
}
}
for _, block := range unknown {
if p.version < eth62 {
pm.fetcher.Notify(p.id, block.Hash, block.Number, time.Now(), p.RequestBlocks, nil, nil)
} else {
pm.fetcher.Notify(p.id, block.Hash, block.Number, time.Now(), nil, p.RequestOneHeader, p.RequestBodies)
}
}
case msg.Code == NewBlockMsg:
// Retrieve and decode the propagated block
var request newBlockData
if err := msg.Decode(&request); err != nil {
return errResp(ErrDecode, "%v: %v", msg, err)
}
if err := request.Block.ValidateFields(); err != nil {
return errResp(ErrDecode, "block validation %v: %v", msg, err)
}
request.Block.ReceivedAt = msg.ReceivedAt
// Mark the block's arrival for whatever reason
_, chainHead, _ := pm.chainman.Status()
jsonlogger.LogJson(&logger.EthChainReceivedNewBlock{
BlockHash: request.Block.Hash().Hex(),
BlockNumber: request.Block.Number(),
ChainHeadHash: chainHead.Hex(),
BlockPrevHash: request.Block.ParentHash().Hex(),
RemoteId: p.ID().String(),
})
// Mark the peer as owning the block and schedule it for import
p.MarkBlock(request.Block.Hash())
p.SetHead(request.Block.Hash())
pm.fetcher.Enqueue(p.id, request.Block)
// Update the peers total difficulty if needed, schedule a download if gapped
if request.TD.Cmp(p.Td()) > 0 {
p.SetTd(request.TD)
if request.TD.Cmp(new(big.Int).Add(pm.chainman.Td(), request.Block.Difficulty())) > 0 {
go pm.synchronise(p)
}
}
case msg.Code == TxMsg:
// Transactions arrived, parse all of them and deliver to the pool
var txs []*types.Transaction
if err := msg.Decode(&txs); err != nil {
return errResp(ErrDecode, "msg %v: %v", msg, err)
}
for i, tx := range txs {
// Validate and mark the remote transaction
if tx == nil {
return errResp(ErrDecode, "transaction %d is nil", i)
}
p.MarkTransaction(tx.Hash())
// Log it's arrival for later analysis
jsonlogger.LogJson(&logger.EthTxReceived{
TxHash: tx.Hash().Hex(),
RemoteId: p.ID().String(),
})
}
pm.txpool.AddTransactions(txs)
default:
return errResp(ErrInvalidMsgCode, "%v", msg.Code)
}
return nil
}