191 lines
6.3 KiB
Go
191 lines
6.3 KiB
Go
package mtprotoedge
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import (
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"bytes"
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"context"
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"crypto/rand"
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"sync"
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"testing"
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"time"
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"github.com/gotd/td/bin"
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"github.com/gotd/td/crypto"
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"github.com/gotd/td/mt"
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"github.com/gotd/td/proto"
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"github.com/gotd/td/tg"
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)
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func TestEncryptOutboundFrameDecryptsWithGotdCipher(t *testing.T) {
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var key crypto.Key
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if _, err := rand.Read(key[:]); err != nil {
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t.Fatalf("rand key: %v", err)
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}
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authKey := key.WithID()
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body := mustEncodeTL(t, &mt.NewSessionCreated{
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FirstMsgID: 111,
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UniqueID: 222,
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ServerSalt: 333,
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})
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c := &Conn{
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cipher: crypto.NewServerCipher(rand.Reader),
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key: authKey,
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salt: 12345,
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sessionID: 67890,
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}
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out, err := c.encryptOutboundFrame(&outboundFrame{
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msgID: 7649066000000000001,
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seqNo: 1,
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typeID: mt.NewSessionCreatedTypeID,
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body: body,
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})
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if err != nil {
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t.Fatalf("encrypt: %v", err)
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}
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data, err := crypto.NewClientCipher(rand.Reader).DecryptFromBuffer(authKey, &bin.Buffer{Buf: append([]byte(nil), out.Raw()...)})
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if err != nil {
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t.Fatalf("decrypt: %v", err)
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}
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if data.Salt != c.salt || data.SessionID != c.sessionID {
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t.Fatalf("salt/session = %d/%d, want %d/%d", data.Salt, data.SessionID, c.salt, c.sessionID)
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}
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if got := data.Data(); !bytes.Equal(got, body) {
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t.Fatalf("body = %x, want %x", got, body)
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}
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}
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func TestOutboundActorSerializesConcurrentSends(t *testing.T) {
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const dc = 2
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addr, pub, srv := startTestServer(t, Options{DC: dc})
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conn, auth, cipher := dialHandshake(t, addr, dc, pub)
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clientMsgID := proto.NewMessageIDGen(time.Now)
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sendEncrypted(t, conn, cipher, auth, clientMsgID.New(proto.MessageFromClient), &mt.PingRequest{PingID: 1})
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collectReplies(t, conn, cipher, auth.AuthKey, mt.MsgsAckTypeID)
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srv.Conns().SetReceivesUpdates(auth.SessionID, true)
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const sends = 64
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var wg sync.WaitGroup
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errs := make(chan error, sends)
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for i := 0; i < sends; i++ {
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wg.Add(1)
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go func() {
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defer wg.Done()
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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errs <- srv.Conns().PushToSession(ctx, auth.SessionID, proto.MessageFromServer, &tg.UpdatesTooLong{})
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}()
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}
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wg.Wait()
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close(errs)
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for err := range errs {
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if err != nil {
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t.Fatalf("push: %v", err)
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}
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}
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var prevMsgID int64
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var prevSeqNo int32 = -1
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for i := 0; i < sends; i++ {
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data, id, _ := readServerMessage(t, conn, cipher, auth.AuthKey)
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if id != tg.UpdatesTooLongTypeID {
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t.Fatalf("message %d type = %#x, want updatesTooLong", i, id)
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}
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if i > 0 && data.MessageID <= prevMsgID {
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t.Fatalf("message %d msg_id = %d after %d, want strictly increasing", i, data.MessageID, prevMsgID)
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}
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if data.SeqNo%2 != 1 {
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t.Fatalf("message %d seq_no = %d, want odd content-related seq_no", i, data.SeqNo)
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}
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if i > 0 && data.SeqNo <= prevSeqNo {
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t.Fatalf("message %d seq_no = %d after %d, want increasing", i, data.SeqNo, prevSeqNo)
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}
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prevMsgID = data.MessageID
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prevSeqNo = data.SeqNo
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}
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}
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func TestFrameNeedsAckServiceExceptions(t *testing.T) {
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cases := []struct {
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name string
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id uint32
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want bool
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}{
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{name: "pong", id: mt.PongTypeID, want: false},
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{name: "future_salts", id: mt.FutureSaltsTypeID, want: false},
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{name: "msgs_ack", id: mt.MsgsAckTypeID, want: false},
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{name: "updatesTooLong", id: tg.UpdatesTooLongTypeID, want: true},
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}
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for _, tc := range cases {
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t.Run(tc.name, func(t *testing.T) {
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if got := frameNeedsAck(tc.id); got != tc.want {
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t.Fatalf("frameNeedsAck(%s) = %v, want %v", tc.name, got, tc.want)
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}
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})
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}
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}
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func TestOutboundResendAndAckState(t *testing.T) {
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const dc = 2
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addr, pub, srv := startTestServer(t, Options{DC: dc})
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conn, auth, cipher := dialHandshake(t, addr, dc, pub)
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clientMsgID := proto.NewMessageIDGen(time.Now)
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sendEncrypted(t, conn, cipher, auth, clientMsgID.New(proto.MessageFromClient), &mt.PingRequest{PingID: 1})
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collectReplies(t, conn, cipher, auth.AuthKey, mt.MsgsAckTypeID)
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srv.Conns().SetReceivesUpdates(auth.SessionID, true)
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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if err := srv.Conns().PushToSession(ctx, auth.SessionID, proto.MessageFromServer, &tg.UpdatesTooLong{}); err != nil {
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cancel()
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t.Fatalf("push: %v", err)
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}
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cancel()
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original, id, _ := readServerMessage(t, conn, cipher, auth.AuthKey)
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if id != tg.UpdatesTooLongTypeID {
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t.Fatalf("pushed type = %#x, want updatesTooLong", id)
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}
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resendReqID := clientMsgID.New(proto.MessageFromClient)
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sendEncryptedWithSeq(t, conn, cipher, auth, resendReqID, 3, &mt.MsgResendReq{MsgIDs: []int64{original.MessageID}})
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resent, resentType, _ := readServerMessage(t, conn, cipher, auth.AuthKey)
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if resentType != tg.UpdatesTooLongTypeID {
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t.Fatalf("resent type = %#x, want updatesTooLong", resentType)
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}
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if resent.MessageID != original.MessageID || resent.SeqNo != original.SeqNo {
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t.Fatalf("resent frame = (msg_id=%d seq=%d), want original (msg_id=%d seq=%d)",
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resent.MessageID, resent.SeqNo, original.MessageID, original.SeqNo)
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}
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_, stateType, stateBuf := readServerMessage(t, conn, cipher, auth.AuthKey)
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if stateType != mt.MsgsStateInfoTypeID {
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t.Fatalf("state type = %#x, want msgs_state_info", stateType)
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}
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assertStateInfo(t, stateBuf, resendReqID, []byte{msgStateReceived})
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_, ackType, _ := readServerMessage(t, conn, cipher, auth.AuthKey)
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if ackType != mt.MsgsAckTypeID {
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t.Fatalf("ack type = %#x, want msgs_ack", ackType)
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}
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sendEncryptedWithSeq(t, conn, cipher, auth, clientMsgID.New(proto.MessageFromClient), 4, &mt.MsgsAck{MsgIDs: []int64{original.MessageID}})
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ackedResendReqID := clientMsgID.New(proto.MessageFromClient)
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sendEncryptedWithSeq(t, conn, cipher, auth, ackedResendReqID, 5, &mt.MsgResendReq{MsgIDs: []int64{original.MessageID}})
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_, ackedStateType, ackedStateBuf := readServerMessage(t, conn, cipher, auth.AuthKey)
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if ackedStateType != mt.MsgsStateInfoTypeID {
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t.Fatalf("after ack type = %#x, want msgs_state_info without resend", ackedStateType)
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}
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assertStateInfo(t, ackedStateBuf, ackedResendReqID, []byte{msgStateReceived})
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}
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func assertStateInfo(t *testing.T, b *bin.Buffer, reqMsgID int64, want []byte) {
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t.Helper()
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var info mt.MsgsStateInfo
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if err := info.Decode(b); err != nil {
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t.Fatalf("decode msgs_state_info: %v", err)
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}
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if info.ReqMsgID != reqMsgID {
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t.Fatalf("msgs_state_info.req_msg_id = %d, want %d", info.ReqMsgID, reqMsgID)
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}
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if string(info.Info) != string(want) {
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t.Fatalf("msgs_state_info.info = %v, want %v", []byte(info.Info), want)
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}
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}
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