package p2p import ( "fmt" golog "log" "net" "testing" "time" "github.com/stretchr/testify/assert" "github.com/stretchr/testify/require" "github.com/tendermint/tendermint/crypto" "github.com/tendermint/tendermint/crypto/ed25519" cmn "github.com/tendermint/tendermint/libs/common" "github.com/tendermint/tendermint/libs/log" "github.com/tendermint/tendermint/config" tmconn "github.com/tendermint/tendermint/p2p/conn" ) func TestPeerBasic(t *testing.T) { assert, require := assert.New(t), require.New(t) // simulate remote peer rp := &remotePeer{PrivKey: ed25519.GenPrivKey(), Config: cfg} rp.Start() defer rp.Stop() p, err := createOutboundPeerAndPerformHandshake(rp.Addr(), cfg, tmconn.DefaultMConnConfig()) require.Nil(err) err = p.Start() require.Nil(err) defer p.Stop() assert.True(p.IsRunning()) assert.True(p.IsOutbound()) assert.False(p.IsPersistent()) p.persistent = true assert.True(p.IsPersistent()) assert.Equal(rp.Addr().DialString(), p.Addr().String()) assert.Equal(rp.ID(), p.ID()) } func TestPeerSend(t *testing.T) { assert, require := assert.New(t), require.New(t) config := cfg // simulate remote peer rp := &remotePeer{PrivKey: ed25519.GenPrivKey(), Config: config} rp.Start() defer rp.Stop() p, err := createOutboundPeerAndPerformHandshake(rp.Addr(), config, tmconn.DefaultMConnConfig()) require.Nil(err) err = p.Start() require.Nil(err) defer p.Stop() assert.True(p.CanSend(testCh)) assert.True(p.Send(testCh, []byte("Asylum"))) } func createOutboundPeerAndPerformHandshake( addr *NetAddress, config *config.P2PConfig, mConfig tmconn.MConnConfig, ) (*peer, error) { chDescs := []*tmconn.ChannelDescriptor{ {ID: testCh, Priority: 1}, } reactorsByCh := map[byte]Reactor{testCh: NewTestReactor(chDescs, true)} pk := ed25519.GenPrivKey() pc, err := testOutboundPeerConn(addr, config, false, pk) if err != nil { return nil, err } timeout := 1 * time.Second ourNodeInfo := testNodeInfo(addr.ID, "host_peer") peerNodeInfo, err := handshake(pc.conn, timeout, ourNodeInfo) if err != nil { return nil, err } p := newPeer(pc, mConfig, peerNodeInfo, reactorsByCh, chDescs, func(p Peer, r interface{}) {}) p.SetLogger(log.TestingLogger().With("peer", addr)) return p, nil } func testDial(addr *NetAddress, cfg *config.P2PConfig) (net.Conn, error) { if cfg.TestDialFail { return nil, fmt.Errorf("dial err (peerConfig.DialFail == true)") } conn, err := addr.DialTimeout(cfg.DialTimeout) if err != nil { return nil, err } return conn, nil } func testOutboundPeerConn( addr *NetAddress, config *config.P2PConfig, persistent bool, ourNodePrivKey crypto.PrivKey, ) (peerConn, error) { conn, err := testDial(addr, config) if err != nil { return peerConn{}, cmn.ErrorWrap(err, "Error creating peer") } pc, err := testPeerConn(conn, config, true, persistent, ourNodePrivKey, addr) if err != nil { if cerr := conn.Close(); cerr != nil { return peerConn{}, cmn.ErrorWrap(err, cerr.Error()) } return peerConn{}, err } // ensure dialed ID matches connection ID if addr.ID != pc.ID() { if cerr := conn.Close(); cerr != nil { return peerConn{}, cmn.ErrorWrap(err, cerr.Error()) } return peerConn{}, ErrSwitchAuthenticationFailure{addr, pc.ID()} } return pc, nil } type remotePeer struct { PrivKey crypto.PrivKey Config *config.P2PConfig addr *NetAddress quit chan struct{} channels cmn.HexBytes listenAddr string } func (rp *remotePeer) Addr() *NetAddress { return rp.addr } func (rp *remotePeer) ID() ID { return PubKeyToID(rp.PrivKey.PubKey()) } func (rp *remotePeer) Start() { if rp.listenAddr == "" { rp.listenAddr = "127.0.0.1:0" } l, e := net.Listen("tcp", rp.listenAddr) // any available address if e != nil { golog.Fatalf("net.Listen tcp :0: %+v", e) } rp.addr = NewNetAddress(PubKeyToID(rp.PrivKey.PubKey()), l.Addr()) rp.quit = make(chan struct{}) if rp.channels == nil { rp.channels = []byte{testCh} } go rp.accept(l) } func (rp *remotePeer) Stop() { close(rp.quit) } func (rp *remotePeer) accept(l net.Listener) { conns := []net.Conn{} for { conn, err := l.Accept() if err != nil { golog.Fatalf("Failed to accept conn: %+v", err) } pc, err := testInboundPeerConn(conn, rp.Config, rp.PrivKey) if err != nil { golog.Fatalf("Failed to create a peer: %+v", err) } _, err = handshake(pc.conn, time.Second, rp.nodeInfo(l)) if err != nil { golog.Fatalf("Failed to perform handshake: %+v", err) } conns = append(conns, conn) select { case <-rp.quit: for _, conn := range conns { if err := conn.Close(); err != nil { golog.Fatal(err) } } return default: } } } func (rp *remotePeer) nodeInfo(l net.Listener) NodeInfo { return DefaultNodeInfo{ ProtocolVersion: defaultProtocolVersion, ID_: rp.Addr().ID, ListenAddr: l.Addr().String(), Network: "testing", Version: "1.2.3-rc0-deadbeef", Channels: rp.channels, Moniker: "remote_peer", } }