mirror of
https://gitlab.com/pulsechaincom/go-pulse.git
synced 2024-12-23 20:07:16 +00:00
ca376ead88
This PR implements the new LES protocol version extensions: * new and more efficient Merkle proofs reply format (when replying to a multiple Merkle proofs request, we just send a single set of trie nodes containing all necessary nodes) * BBT (BloomBitsTrie) works similarly to the existing CHT and contains the bloombits search data to speed up log searches * GetTxStatusMsg returns the inclusion position or the pending/queued/unknown state of a transaction referenced by hash * an optional signature of new block data (number/hash/td) can be included in AnnounceMsg to provide an option for "very light clients" (mobile/embedded devices) to skip expensive Ethash check and accept multiple signatures of somewhat trusted servers (still a lot better than trusting a single server completely and retrieving everything through RPC). The new client mode is not implemented in this PR, just the protocol extension.
134 lines
4.7 KiB
Go
134 lines
4.7 KiB
Go
// Copyright 2016 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package les
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import (
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"context"
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"testing"
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"time"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/eth"
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"github.com/ethereum/go-ethereum/ethdb"
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"github.com/ethereum/go-ethereum/light"
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)
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var testBankSecureTrieKey = secAddr(testBankAddress)
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func secAddr(addr common.Address) []byte {
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return crypto.Keccak256(addr[:])
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}
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type accessTestFn func(db ethdb.Database, bhash common.Hash, number uint64) light.OdrRequest
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func TestBlockAccessLes1(t *testing.T) { testAccess(t, 1, tfBlockAccess) }
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func TestBlockAccessLes2(t *testing.T) { testAccess(t, 2, tfBlockAccess) }
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func tfBlockAccess(db ethdb.Database, bhash common.Hash, number uint64) light.OdrRequest {
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return &light.BlockRequest{Hash: bhash, Number: number}
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}
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func TestReceiptsAccessLes1(t *testing.T) { testAccess(t, 1, tfReceiptsAccess) }
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func TestReceiptsAccessLes2(t *testing.T) { testAccess(t, 2, tfReceiptsAccess) }
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func tfReceiptsAccess(db ethdb.Database, bhash common.Hash, number uint64) light.OdrRequest {
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return &light.ReceiptsRequest{Hash: bhash, Number: number}
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}
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func TestTrieEntryAccessLes1(t *testing.T) { testAccess(t, 1, tfTrieEntryAccess) }
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func TestTrieEntryAccessLes2(t *testing.T) { testAccess(t, 2, tfTrieEntryAccess) }
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func tfTrieEntryAccess(db ethdb.Database, bhash common.Hash, number uint64) light.OdrRequest {
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return &light.TrieRequest{Id: light.StateTrieID(core.GetHeader(db, bhash, core.GetBlockNumber(db, bhash))), Key: testBankSecureTrieKey}
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}
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func TestCodeAccessLes1(t *testing.T) { testAccess(t, 1, tfCodeAccess) }
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func TestCodeAccessLes2(t *testing.T) { testAccess(t, 2, tfCodeAccess) }
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func tfCodeAccess(db ethdb.Database, bhash common.Hash, number uint64) light.OdrRequest {
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header := core.GetHeader(db, bhash, core.GetBlockNumber(db, bhash))
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if header.Number.Uint64() < testContractDeployed {
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return nil
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}
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sti := light.StateTrieID(header)
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ci := light.StorageTrieID(sti, crypto.Keccak256Hash(testContractAddr[:]), common.Hash{})
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return &light.CodeRequest{Id: ci, Hash: crypto.Keccak256Hash(testContractCodeDeployed)}
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}
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func testAccess(t *testing.T, protocol int, fn accessTestFn) {
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// Assemble the test environment
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peers := newPeerSet()
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dist := newRequestDistributor(peers, make(chan struct{}))
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rm := newRetrieveManager(peers, dist, nil)
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db, _ := ethdb.NewMemDatabase()
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ldb, _ := ethdb.NewMemDatabase()
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odr := NewLesOdr(ldb, light.NewChtIndexer(db, true), light.NewBloomTrieIndexer(db, true), eth.NewBloomIndexer(db, light.BloomTrieFrequency), rm)
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pm := newTestProtocolManagerMust(t, false, 4, testChainGen, nil, nil, db)
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lpm := newTestProtocolManagerMust(t, true, 0, nil, peers, odr, ldb)
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_, err1, lpeer, err2 := newTestPeerPair("peer", protocol, pm, lpm)
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select {
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case <-time.After(time.Millisecond * 100):
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case err := <-err1:
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t.Fatalf("peer 1 handshake error: %v", err)
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case err := <-err2:
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t.Fatalf("peer 1 handshake error: %v", err)
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}
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lpm.synchronise(lpeer)
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test := func(expFail uint64) {
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for i := uint64(0); i <= pm.blockchain.CurrentHeader().Number.Uint64(); i++ {
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bhash := core.GetCanonicalHash(db, i)
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if req := fn(ldb, bhash, i); req != nil {
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ctx, cancel := context.WithTimeout(context.Background(), 200*time.Millisecond)
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defer cancel()
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err := odr.Retrieve(ctx, req)
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got := err == nil
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exp := i < expFail
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if exp && !got {
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t.Errorf("object retrieval failed")
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}
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if !exp && got {
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t.Errorf("unexpected object retrieval success")
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}
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}
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}
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}
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// temporarily remove peer to test odr fails
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peers.Unregister(lpeer.id)
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time.Sleep(time.Millisecond * 10) // ensure that all peerSetNotify callbacks are executed
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// expect retrievals to fail (except genesis block) without a les peer
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test(0)
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peers.Register(lpeer)
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time.Sleep(time.Millisecond * 10) // ensure that all peerSetNotify callbacks are executed
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lpeer.lock.Lock()
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lpeer.hasBlock = func(common.Hash, uint64) bool { return true }
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lpeer.lock.Unlock()
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// expect all retrievals to pass
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test(5)
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}
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