-
Notifications
You must be signed in to change notification settings - Fork 17
/
routes.go
105 lines (95 loc) · 3.25 KB
/
routes.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
package tpc
import (
"github.com/cosmos/cosmos-sdk/codec"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
channeltypes "github.com/cosmos/ibc-go/modules/core/04-channel/types"
tpckeeper "github.com/datachainlab/cross/x/core/atomic/protocol/tpc/keeper"
"github.com/datachainlab/cross/x/core/atomic/protocol/tpc/types"
"github.com/datachainlab/cross/x/core/router"
"github.com/datachainlab/cross/x/packets"
)
type PacketHandler struct {
packetMiddleware packets.PacketMiddleware
cdc codec.Codec
keeper tpckeeper.Keeper
}
var _ router.PacketHandler = (*PacketHandler)(nil)
func NewPacketHandler(cdc codec.Codec, k tpckeeper.Keeper) PacketHandler {
return PacketHandler{cdc: cdc, keeper: k}
}
func (h PacketHandler) HandlePacket(
ctx sdk.Context,
packet channeltypes.Packet,
ip packets.IncomingPacket,
) (*sdk.Result, *packets.PacketAcknowledgementData, error) {
ctx, _, as, err := h.packetMiddleware.HandlePacket(ctx, ip, packets.NewBasicPacketSender(h.keeper.ChannelKeeper()), packets.NewBasicACKSender())
if err != nil {
return nil, nil, sdkerrors.Wrapf(sdkerrors.ErrUnknownRequest, "failed to handle request: %v", err)
}
var (
data []byte
ack packets.OutgoingPacketAcknowledgement
)
switch payload := ip.Payload().(type) {
case *types.PacketDataPrepare:
res, ap, err := h.keeper.ReceivePacketPrepare(
ctx,
packet.DestinationPort, packet.DestinationChannel,
*payload,
)
if err != nil {
return nil, nil, sdkerrors.Wrapf(sdkerrors.ErrUnknownRequest, "failed to ReceivePreparePacket: %v", err)
}
ack = packets.NewOutgoingPacketAcknowledgement(nil, ap)
data = res.GetData()
case *types.PacketDataCommit:
res, ap, err := h.keeper.ReceivePacketCommit(
ctx,
packet.DestinationPort, packet.DestinationChannel,
*payload,
)
if err != nil {
return nil, nil, sdkerrors.Wrapf(sdkerrors.ErrUnknownRequest, "failed to ReceivePacketCommit: %v", err)
}
ack = packets.NewOutgoingPacketAcknowledgement(nil, ap)
if res != nil {
data = res.GetData()
ctx.EventManager().EmitEvents(res.GetEvents())
} else {
data = nil
}
default:
return nil, nil, sdkerrors.Wrapf(sdkerrors.ErrUnknownRequest, "unrecognized packet type: %T", payload)
}
if err = as.SendACK(ctx, ack); err != nil {
return nil, nil, err
}
ackData := ack.Data()
return &sdk.Result{Data: data, Events: ctx.EventManager().ABCIEvents()}, &ackData, nil
}
func (h PacketHandler) HandleACK(
ctx sdk.Context,
packet channeltypes.Packet,
ip packets.IncomingPacket,
ipa packets.IncomingPacketAcknowledgement,
) (*sdk.Result, error) {
ctx, ps, err := h.packetMiddleware.HandleACK(ctx, ip, ipa, packets.NewBasicPacketSender(h.keeper.ChannelKeeper()))
if err != nil {
return nil, err
}
switch payload := ipa.Payload().(type) {
case *types.PacketAcknowledgementPrepare:
pd := ip.Payload().(*types.PacketDataPrepare)
return h.keeper.HandlePacketAcknowledgementPrepare(
ctx,
packet.SourcePort, packet.SourceChannel,
*payload, pd.TxId, pd.TxIndex, ps,
)
case *types.PacketAcknowledgementCommit:
bz := h.cdc.MustMarshalJSON(payload)
return &sdk.Result{Data: bz, Events: ctx.EventManager().ABCIEvents()}, nil
default:
return nil, sdkerrors.Wrapf(sdkerrors.ErrUnknownRequest, "unrecognized ack type: %T", payload)
}
}