-
Notifications
You must be signed in to change notification settings - Fork 44
/
cross_app.go
197 lines (166 loc) · 6.31 KB
/
cross_app.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
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
package keeper
import (
"encoding/hex"
"cosmossdk.io/errors"
sdk "github.com/cosmos/cosmos-sdk/types"
crosschaintypes "github.com/cosmos/cosmos-sdk/x/crosschain/types"
"github.com/bnb-chain/greenfield/x/bridge/types"
)
func RegisterCrossApps(keeper Keeper) {
transferOutApp := NewTransferOutApp(keeper)
err := keeper.crossChainKeeper.RegisterChannel(types.TransferOutChannel, types.TransferOutChannelID, transferOutApp)
if err != nil {
panic(err)
}
transferInApp := NewTransferInApp(keeper)
err = keeper.crossChainKeeper.RegisterChannel(types.TransferInChannel, types.TransferInChannelID, transferInApp)
if err != nil {
panic(err)
}
}
var _ sdk.CrossChainApplication = &TransferOutApp{}
type TransferOutApp struct {
bridgeKeeper Keeper
}
func NewTransferOutApp(keeper Keeper) *TransferOutApp {
return &TransferOutApp{
bridgeKeeper: keeper,
}
}
func (app *TransferOutApp) ExecuteAckPackage(ctx sdk.Context, appCtx *sdk.CrossChainAppContext, payload []byte) sdk.ExecuteResult {
if len(payload) == 0 {
return sdk.ExecuteResult{}
}
app.bridgeKeeper.Logger(ctx).Info("receive transfer out refund ack package")
refundPackage, err := types.DeserializeTransferOutRefundPackage(payload)
if err != nil {
app.bridgeKeeper.Logger(ctx).Error("decode transfer out refund claim error", "err", err.Error(), "claim", hex.EncodeToString(payload))
return sdk.ExecuteResult{
Err: err,
}
}
denom := app.bridgeKeeper.stakingKeeper.BondDenom(ctx) // only support native token so far
err = app.bridgeKeeper.bankKeeper.SendCoinsFromModuleToAccount(ctx, crosschaintypes.ModuleName, refundPackage.RefundAddress,
sdk.Coins{
sdk.Coin{
Denom: denom,
Amount: sdk.NewIntFromBigInt(refundPackage.RefundAmount),
},
},
)
if err != nil {
app.bridgeKeeper.Logger(ctx).Error("send coins error", "err", err.Error())
return sdk.ExecuteResult{
Err: err,
}
}
err = ctx.EventManager().EmitTypedEvent(&types.EventCrossTransferOutRefund{
RefundAddress: refundPackage.RefundAddress.String(),
Amount: &sdk.Coin{
Denom: denom,
Amount: sdk.NewIntFromBigInt(refundPackage.RefundAmount),
},
RefundReason: types.RefundReason(refundPackage.RefundReason),
Sequence: appCtx.Sequence,
DestChainId: uint32(appCtx.SrcChainId),
})
if err != nil {
app.bridgeKeeper.Logger(ctx).Error("emit event error", "err", err.Error())
panic(err)
}
return sdk.ExecuteResult{}
}
func (app *TransferOutApp) ExecuteFailAckPackage(ctx sdk.Context, appCtx *sdk.CrossChainAppContext, payload []byte) sdk.ExecuteResult {
app.bridgeKeeper.Logger(ctx).Info("received transfer out fail ack package")
transferOutPackage, err := types.DeserializeTransferOutSynPackage(payload)
if err != nil {
return sdk.ExecuteResult{
Err: err,
}
}
denom := app.bridgeKeeper.stakingKeeper.BondDenom(ctx) // only support native token so far
err = app.bridgeKeeper.bankKeeper.SendCoinsFromModuleToAccount(ctx, crosschaintypes.ModuleName, transferOutPackage.RefundAddress,
sdk.Coins{
sdk.Coin{
Denom: denom,
Amount: sdk.NewIntFromBigInt(transferOutPackage.Amount),
},
},
)
if err != nil {
app.bridgeKeeper.Logger(ctx).Error("send coins error", "err", err.Error())
return sdk.ExecuteResult{
Err: err,
}
}
err = ctx.EventManager().EmitTypedEvent(&types.EventCrossTransferOutRefund{
RefundAddress: transferOutPackage.RefundAddress.String(),
Amount: &sdk.Coin{
Denom: denom,
Amount: sdk.NewIntFromBigInt(transferOutPackage.Amount),
},
RefundReason: types.REFUND_REASON_FAIL_ACK,
Sequence: appCtx.Sequence,
DestChainId: uint32(appCtx.SrcChainId),
})
if err != nil {
app.bridgeKeeper.Logger(ctx).Error("emit event error", "err", err.Error())
}
return sdk.ExecuteResult{}
}
func (app *TransferOutApp) ExecuteSynPackage(ctx sdk.Context, header *sdk.CrossChainAppContext, payload []byte) sdk.ExecuteResult {
app.bridgeKeeper.Logger(ctx).Error("received transfer out syn package ")
return sdk.ExecuteResult{}
}
var _ sdk.CrossChainApplication = &TransferInApp{}
type TransferInApp struct {
bridgeKeeper Keeper
}
func NewTransferInApp(bridgeKeeper Keeper) *TransferInApp {
return &TransferInApp{
bridgeKeeper: bridgeKeeper,
}
}
func (app *TransferInApp) ExecuteAckPackage(ctx sdk.Context, header *sdk.CrossChainAppContext, payload []byte) sdk.ExecuteResult {
app.bridgeKeeper.Logger(ctx).Error("received transfer in ack package", "payload", hex.EncodeToString(payload))
return sdk.ExecuteResult{}
}
func (app *TransferInApp) ExecuteFailAckPackage(ctx sdk.Context, header *sdk.CrossChainAppContext, payload []byte) sdk.ExecuteResult {
app.bridgeKeeper.Logger(ctx).Error("received transfer in fail ack package", "payload", hex.EncodeToString(payload))
return sdk.ExecuteResult{}
}
func (app *TransferInApp) ExecuteSynPackage(ctx sdk.Context, appCtx *sdk.CrossChainAppContext, payload []byte) sdk.ExecuteResult {
transferInPackage, err := types.DeserializeTransferInSynPackage(payload)
if err != nil {
app.bridgeKeeper.Logger(ctx).Error("decode transfer in claim error", "err", err.Error(), "claim", string(payload))
panic("decode transfer in claim error")
}
denom := app.bridgeKeeper.stakingKeeper.BondDenom(ctx)
amount := sdk.NewCoin(denom, sdk.NewIntFromBigInt(transferInPackage.Amount))
err = app.bridgeKeeper.bankKeeper.SendCoinsFromModuleToAccount(ctx, crosschaintypes.ModuleName, transferInPackage.ReceiverAddress, sdk.Coins{amount})
if err != nil {
app.bridgeKeeper.Logger(ctx).Error("send coins error", "err", err.Error())
refundPackage, refundErr := app.bridgeKeeper.GetRefundTransferInPayload(transferInPackage, uint32(types.REFUND_REASON_INSUFFICIENT_BALANCE))
if refundErr != nil {
app.bridgeKeeper.Logger(ctx).Error("get refund transfer in payload error", "err", refundErr.Error())
panic(refundErr)
}
return sdk.ExecuteResult{
Payload: refundPackage,
Err: errors.Wrapf(types.ErrInvalidPackage, "send coins error: %s", err.Error()),
}
}
// emit event
err = ctx.EventManager().EmitTypedEvent(&types.EventCrossTransferIn{
Amount: &amount,
ReceiverAddress: transferInPackage.ReceiverAddress.String(),
RefundAddress: transferInPackage.RefundAddress.String(),
Sequence: appCtx.Sequence,
SrcChainId: uint32(appCtx.SrcChainId),
})
if err != nil {
app.bridgeKeeper.Logger(ctx).Error("emit event error", "err", err.Error())
panic(err)
}
return sdk.ExecuteResult{}
}