Golang encoder.DeserializeRaw函数代码示例

func TestGivePeersMessage(t *testing.T) {
	d := newDefaultDaemon()
	defer shutdown(d)
	addrs := []string{addr, addrb, "7"}
	peers := make([]*pex.Peer, 3)
	for i, addr := range addrs {
		peers[i] = &pex.Peer{Addr: addr}
	}
	m := NewGivePeersMessage(peers)
	assert.Equal(t, len(m.GetPeers()), 2)
	testSimpleMessageHandler(t, d, m)
	assert.Equal(t, m.GetPeers()[0], addrs[0])
	assert.Equal(t, m.GetPeers()[1], addrs[1])

	// Test disabled
	d.Peers.Config.Disabled = true
	m.Process(d)
	assert.Equal(t, len(d.Peers.Peers.Peerlist), 0)

	// Test serialization
	m = NewGivePeersMessage(peers)
	b := encoder.Serialize(m)
	m2 := GivePeersMessage{}
	assert.Nil(t, encoder.DeserializeRaw(b, &m2))
	assert.Equal(t, *m, m2)

	// Peers should be added to the pex when processed
	d.Peers.Config.Disabled = false
	m.Process(d)
	assert.Equal(t, len(d.Peers.Peers.Peerlist), 2)
	gnet.EraseMessages()
}

func TransactionDeserialize(b []byte) Transaction {
	t := Transaction{}
	if err := encoder.DeserializeRaw(b, &t); err != nil {
		log.Panic("Failed to deserialize transaction")
	}
	return t
}

func TestPingMessage(t *testing.T) {
	d := newDefaultDaemon()
	defer shutdown(d)
	p := d.Pool.Pool
	m := &PingMessage{}
	testSimpleMessageHandler(t, d, m)

	m.c = messageContext(addr)
	go p.ConnectionWriteLoop(m.c.Conn)
	defer m.c.Conn.Close()
	assert.NotPanics(t, func() { m.Process(d) })
	// A pong message should have been sent
	wait()
	assert.Equal(t, len(p.SendResults), 1)
	if len(p.SendResults) == 0 {
		t.Fatalf("SendResults empty, would block")
	}
	sr := <-p.SendResults
	assert.Equal(t, sr.Connection, m.c.Conn)
	assert.Nil(t, sr.Error)
	_, ok := sr.Message.(*PongMessage)
	assert.True(t, ok)
	assert.False(t, m.c.Conn.LastSent.IsZero())

	// Test serialization
	mm := PingMessage{}
	b := encoder.Serialize(mm)
	m2 := PingMessage{}
	assert.Nil(t, encoder.DeserializeRaw(b, &m2))
	assert.Equal(t, mm, m2)

	gnet.EraseMessages()
}

//decode block to bytes
func Dec_block(b []byte) (SignedBlock, error) {
	if len(b) < 16 {
		log.Panic()
	}

	var dln uint64 = le_Uint64(b[0:8])
	var seq uint64 = le_Uint64(b[8:16])
	var chk uint64 = le_Uint64(b[16:24])

	if dln != uint64(len(b)) {
		log.Panic("Dec_block, length check failed")
	}

	b = b[24:] //cleave off header

	if chk != FnvsHash(b) {
		log.Panic("Dec_block, checksum failed")
	}

	var sb SignedBlock
	err := encoder.DeserializeRaw(b, &sb)
	if err != nil {
		log.Panic("Dec_block, deserialization failed")
	}

	if seq != sb.Block.Head.BkSeq {
		log.Panic("Dec_block, seq mismatch")
	}

	return sb, nil
}

func TestGetPeersMessage(t *testing.T) {
	d := newDefaultDaemon()
	defer shutdown(d)
	p := d.Pool
	m := NewGetPeersMessage()
	testSimpleMessageHandler(t, d, m)
	d.Peers.Peers.AddPeer(addr)
	q, err := d.Peers.Peers.AddPeer(addrb)
	assert.Nil(t, err)
	q.Private = true
	d.Peers.Config.ReplyCount = 100
	m.c = messageContext(addr)

	// Peers disabled
	d.Peers.Config.Disabled = true
	assert.NotPanics(t, func() { m.Process(d) })
	wait()
	assert.Equal(t, len(p.Pool.SendResults), 0)
	assert.True(t, m.c.Conn.LastSent.IsZero())

	// Peers enabled
	d.Peers.Config.Disabled = false
	m.c = messageContext(addr)
	defer m.c.Conn.Close()
	go p.Pool.ConnectionWriteLoop(m.c.Conn)
	assert.NotPanics(t, func() { m.Process(d) })
	wait()
	assert.Equal(t, len(p.Pool.SendResults), 1)
	if len(p.Pool.SendResults) == 0 {
		t.Fatal("SendResults empty, would block")
	}
	sr := <-p.Pool.SendResults
	assert.Nil(t, sr.Error)
	assert.Equal(t, sr.Connection, m.c.Conn)
	msg, ok := sr.Message.(*GivePeersMessage)
	assert.True(t, ok)
	// Private peer should not be included
	ipAddr, err := NewIPAddr(addr)
	assert.Nil(t, err)
	assert.Equal(t, msg.Peers, []IPAddr{ipAddr})
	assert.False(t, m.c.Conn.LastSent.IsZero())

	// If no peers, nothing should happen
	m.c.Conn.LastSent = util.ZeroTime()
	delete(d.Peers.Peers.Peerlist, addr)
	assert.NotPanics(t, func() { m.Process(d) })
	wait()
	assert.Equal(t, len(p.Pool.SendResults), 0)
	assert.True(t, m.c.Conn.LastSent.IsZero())

	// Test serialization
	m = NewGetPeersMessage()
	b := encoder.Serialize(m)
	m2 := GetPeersMessage{}
	assert.Nil(t, encoder.DeserializeRaw(b, &m2))
	assert.Equal(t, *m, m2)

	gnet.EraseMessages()
}

func (bt *BlockTree) getBlock(hash cipher.SHA256) *coin.Block {
	bin := bt.blocks.Get(hash[:])
	if bin == nil {
		return nil
	}
	block := coin.Block{}
	if err := encoder.DeserializeRaw(bin, &block); err != nil {
		return nil
	}
	return &block
}

func getBucketValue(db *bolt.DB, name []byte, key []byte, value interface{}) error {
	return db.View(func(tx *bolt.Tx) error {
		b := tx.Bucket(name)
		bin := b.Get(key)
		if bin == nil {
			value = nil
			return nil
		}
		return encoder.DeserializeRaw(bin, value)
	})
}

// Get returns signature of specific block
func (bs BlockSigs) Get(hash cipher.SHA256) (cipher.Sig, error) {
	bin := bs.Sigs.Get(hash[:])
	if bin == nil {
		return cipher.Sig{}, fmt.Errorf("no sig for %v", hash.Hex())
	}
	var sig cipher.Sig
	if err := encoder.DeserializeRaw(bin, &sig); err != nil {
		return cipher.Sig{}, err
	}
	return sig, nil
}

// Get return nil on not found.
func (au *addressUx) Get(address cipher.Address) ([]cipher.SHA256, error) {
	uxHashes := []cipher.SHA256{}
	bin := au.bkt.Get(address.Bytes())
	if bin == nil {
		return nil, nil
	}
	if err := encoder.DeserializeRaw(bin, &uxHashes); err != nil {
		return nil, err
	}
	return uxHashes, nil
}

func (bt *BlockTree) getHashInDepth(depth uint64, filter func(ps []coin.HashPair) cipher.SHA256) (cipher.SHA256, error) {
	key := itob(depth)
	pairsBin := bt.tree.Get(key)
	pairs := []coin.HashPair{}
	if err := encoder.DeserializeRaw(pairsBin, &pairs); err != nil {
		return cipher.SHA256{}, err
	}

	hash := filter(pairs)
	return hash, nil
}

func LoadSerializedBlockchain(filename string) (*SerializedBlockchain, error) {
	sbc := &SerializedBlockchain{}
	data, err := ioutil.ReadFile(filename)
	if err != nil {
		return nil, err
	}
	err = encoder.DeserializeRaw(data, sbc)
	if err != nil {
		return nil, err
	}
	return sbc, nil
}

func TestIntroductionMessageHandle(t *testing.T) {
	d := newDefaultDaemon()
	defer shutdown(d)
	mc := messageContext(addr)
	m := NewIntroductionMessage(d.Messages.Mirror, d.Config.Version,
		d.Pool.Pool.Config.Port)

	// Test valid handling
	m.Mirror = d.Messages.Mirror + 1
	err := m.Handle(mc, d)
	assert.Nil(t, err)
	if len(d.messageEvents) == 0 {
		t.Fatalf("messageEvent is empty")
	}
	<-d.messageEvents
	assert.True(t, m.valid)
	m.valid = false

	// Test matching mirror
	m.Mirror = d.Messages.Mirror
	err = m.Handle(mc, d)
	assert.Equal(t, err, DisconnectSelf)
	m.Mirror = d.Messages.Mirror + 1
	assert.False(t, m.valid)

	// Test mismatched d.Config.Version
	m.Version = d.Config.Version + 1
	err = m.Handle(mc, d)
	assert.Equal(t, err, DisconnectInvalidVersion)
	assert.False(t, m.valid)

	// Test serialization
	m = NewIntroductionMessage(d.Messages.Mirror, d.Config.Version,
		d.Pool.Pool.Config.Port)
	b := encoder.Serialize(m)
	m2 := IntroductionMessage{}
	assert.Nil(t, encoder.DeserializeRaw(b, &m2))
	assert.Equal(t, *m, m2)

	// Test already connected
	d.mirrorConnections[m.Mirror] = make(map[string]uint16)
	d.mirrorConnections[m.Mirror][addrIP] = addrPort + 1
	err = m.Handle(mc, d)
	assert.Equal(t, err, DisconnectConnectedTwice)
	delete(d.mirrorConnections, m.Mirror)
	assert.False(t, m.valid)

	for len(d.messageEvents) > 0 {
		<-d.messageEvents
	}
	gnet.EraseMessages()
}

// GetAllBlockHashInDepth returns all block hash of N depth in the tree.
func (bt *BlockTree) GetAllBlockHashInDepth(depth uint64) ([]cipher.SHA256, error) {
	key := itob(depth)
	pairsBin := bt.tree.Get(key)
	pairs := []coin.HashPair{}
	if err := encoder.DeserializeRaw(pairsBin, &pairs); err != nil {
		return []cipher.SHA256{}, err
	}
	hashes := make([]cipher.SHA256, len(pairs))
	for i, hp := range pairs {
		hashes[i] = hp.Hash
	}
	return hashes, nil
}

func TestGetBlocksMessageHandle(t *testing.T) {
	d := newDefaultDaemon()
	defer shutdown(d)
	m := NewGetBlocksMessage(uint64(1))
	assert.Equal(t, m.LastBlock, uint64(1))
	testSimpleMessageHandler(t, d, m)

	// Test serialization
	m = NewGetBlocksMessage(uint64(106))
	b := encoder.Serialize(m)
	m2 := GetBlocksMessage{}
	assert.Nil(t, encoder.DeserializeRaw(b, &m2))
	assert.Equal(t, *m, m2)
}

// Get get transaction by tx hash, return nil on not found.
func (txs transactions) Get(hash cipher.SHA256) (*Transaction, error) {
	bin := txs.bkt.Get(hash[:])
	if bin == nil {
		return nil, nil
	}

	// deserialize tx
	var tx Transaction
	if err := encoder.DeserializeRaw(bin, &tx); err != nil {
		return nil, err
	}

	return &tx, nil
}