-
Notifications
You must be signed in to change notification settings - Fork 339
/
msg_server.go
189 lines (156 loc) · 4.77 KB
/
msg_server.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
package keeper
import (
"context"
"fmt"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/kava-labs/kava/x/evmutil/types"
)
type msgServer struct {
keeper Keeper
}
// NewMsgServerImpl returns an implementation of the evmutil MsgServer interface
// for the provided Keeper.
func NewMsgServerImpl(keeper Keeper) types.MsgServer {
return &msgServer{keeper: keeper}
}
var _ types.MsgServer = msgServer{}
////////////////////////////
// EVM-native assets -> Cosmos SDK
////////////////////////////
// ConvertCoinToERC20 handles a MsgConvertCoinToERC20 message to convert
// sdk.Coin to Kava EVM tokens.
func (s msgServer) ConvertCoinToERC20(
goCtx context.Context,
msg *types.MsgConvertCoinToERC20,
) (*types.MsgConvertCoinToERC20Response, error) {
ctx := sdk.UnwrapSDKContext(goCtx)
initiator, err := sdk.AccAddressFromBech32(msg.Initiator)
if err != nil {
return nil, fmt.Errorf("invalid Initiator address: %w", err)
}
receiver, err := types.NewInternalEVMAddressFromString(msg.Receiver)
if err != nil {
return nil, fmt.Errorf("invalid Receiver address: %w", err)
}
if err := s.keeper.ConvertCoinToERC20(
ctx,
initiator,
receiver,
*msg.Amount,
); err != nil {
return nil, err
}
ctx.EventManager().EmitEvent(
sdk.NewEvent(
sdk.EventTypeMessage,
sdk.NewAttribute(sdk.AttributeKeyModule, types.AttributeValueCategory),
sdk.NewAttribute(sdk.AttributeKeySender, msg.Initiator),
),
)
return &types.MsgConvertCoinToERC20Response{}, nil
}
// ConvertERC20ToCoin handles a MsgConvertERC20ToCoin message to convert
// sdk.Coin to Kava EVM tokens.
func (s msgServer) ConvertERC20ToCoin(
goCtx context.Context,
msg *types.MsgConvertERC20ToCoin,
) (*types.MsgConvertERC20ToCoinResponse, error) {
ctx := sdk.UnwrapSDKContext(goCtx)
initiator, err := types.NewInternalEVMAddressFromString(msg.Initiator)
if err != nil {
return nil, fmt.Errorf("invalid initiator address: %w", err)
}
receiver, err := sdk.AccAddressFromBech32(msg.Receiver)
if err != nil {
return nil, fmt.Errorf("invalid receiver address: %w", err)
}
contractAddr, err := types.NewInternalEVMAddressFromString(msg.KavaERC20Address)
if err != nil {
return nil, fmt.Errorf("invalid contract address: %w", err)
}
if err := s.keeper.ConvertERC20ToCoin(
ctx,
initiator,
receiver,
contractAddr,
msg.Amount,
); err != nil {
return nil, err
}
ctx.EventManager().EmitEvent(
sdk.NewEvent(
sdk.EventTypeMessage,
sdk.NewAttribute(sdk.AttributeKeyModule, types.AttributeValueCategory),
sdk.NewAttribute(sdk.AttributeKeySender, msg.Initiator),
),
)
return &types.MsgConvertERC20ToCoinResponse{}, nil
}
////////////////////////////
// Cosmos SDK-native assets -> EVM
////////////////////////////
// ConvertCosmosCoinToERC20 converts a native sdk.Coin to an ERC20.
// If no ERC20 contract has been deployed for the given denom, a new
// contract will be deployed and registered to the module.
func (s msgServer) ConvertCosmosCoinToERC20(
goCtx context.Context,
msg *types.MsgConvertCosmosCoinToERC20,
) (*types.MsgConvertCosmosCoinToERC20Response, error) {
ctx := sdk.UnwrapSDKContext(goCtx)
initiator, err := sdk.AccAddressFromBech32(msg.Initiator)
if err != nil {
return nil, fmt.Errorf("invalid initiator address: %w", err)
}
receiver, err := types.NewInternalEVMAddressFromString(msg.Receiver)
if err != nil {
return nil, fmt.Errorf("invalid receiver address: %w", err)
}
if err := s.keeper.ConvertCosmosCoinToERC20(
ctx,
initiator,
receiver,
*msg.Amount,
); err != nil {
return nil, err
}
ctx.EventManager().EmitEvent(
sdk.NewEvent(
sdk.EventTypeMessage,
sdk.NewAttribute(sdk.AttributeKeyModule, types.AttributeValueCategory),
sdk.NewAttribute(sdk.AttributeKeySender, msg.Initiator),
),
)
return &types.MsgConvertCosmosCoinToERC20Response{}, nil
}
// ConvertCosmosCoinFromERC20 converts an ERC20 representation of a cosmos-native asset
// back into an sdk.Coin.
func (s msgServer) ConvertCosmosCoinFromERC20(
goCtx context.Context,
msg *types.MsgConvertCosmosCoinFromERC20,
) (*types.MsgConvertCosmosCoinFromERC20Response, error) {
ctx := sdk.UnwrapSDKContext(goCtx)
initiator, err := types.NewInternalEVMAddressFromString(msg.Initiator)
if err != nil {
return nil, fmt.Errorf("invalid initiator address: %w", err)
}
receiver, err := sdk.AccAddressFromBech32(msg.Receiver)
if err != nil {
return nil, fmt.Errorf("invalid receiver address: %w", err)
}
if err := s.keeper.ConvertCosmosCoinFromERC20(
ctx,
initiator,
receiver,
*msg.Amount,
); err != nil {
return nil, err
}
ctx.EventManager().EmitEvent(
sdk.NewEvent(
sdk.EventTypeMessage,
sdk.NewAttribute(sdk.AttributeKeyModule, types.AttributeValueCategory),
sdk.NewAttribute(sdk.AttributeKeySender, msg.Initiator),
),
)
return &types.MsgConvertCosmosCoinFromERC20Response{}, nil
}