-
Notifications
You must be signed in to change notification settings - Fork 28
/
keeper.go
223 lines (206 loc) · 5.69 KB
/
keeper.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
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
package ics721nft
import (
"errors"
errorsmod "cosmossdk.io/errors"
onftkeeper "github.com/OmniFlix/omniflixhub/v4/x/onft/keeper"
onfttypes "github.com/OmniFlix/omniflixhub/v4/x/onft/types"
nfttransfer "github.com/bianjieai/nft-transfer/types"
"github.com/cometbft/cometbft/libs/log"
"github.com/cosmos/cosmos-sdk/codec"
codectypes "github.com/cosmos/cosmos-sdk/codec/types"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
"github.com/cosmos/cosmos-sdk/x/nft"
nftkeeper "github.com/cosmos/cosmos-sdk/x/nft/keeper"
"github.com/cosmos/gogoproto/proto"
)
// Keeper defines the ICS721 Keeper
type Keeper struct {
nk nftkeeper.Keeper
cdc codec.Codec
ak AccountKeeper
bk BankKeeper
cb onfttypes.ClassBuilder
nb onfttypes.NFTBuilder
}
// NewKeeper creates a new ics721 Keeper instance
func NewKeeper(cdc codec.Codec,
k onftkeeper.Keeper,
ak AccountKeeper,
bk BankKeeper,
) Keeper {
return Keeper{
nk: k.NFTkeeper(),
cdc: cdc,
ak: ak,
bk: bk,
cb: onfttypes.NewClassBuilder(cdc, ak.GetModuleAddress),
nb: onfttypes.NewNFTBuilder(cdc),
}
}
// CreateOrUpdateClass implement the method of ICS721Keeper.CreateOrUpdateClass
func (k Keeper) CreateOrUpdateClass(ctx sdk.Context,
classID,
classURI,
classData string,
) error {
var (
class nft.Class
err error
)
if len(classData) != 0 {
class, err = k.cb.Build(classID, classURI, classData)
if err != nil {
k.Logger(ctx).Error("unable to build class from packet data", "error:", err.Error())
return err
}
} else {
denomMetadata := &onfttypes.DenomMetadata{
Creator: k.ak.GetModuleAddress(onfttypes.ModuleName).String(),
PreviewUri: "",
Schema: "",
Description: "",
Data: "",
UriHash: "",
RoyaltyReceivers: nil,
}
metadata, err := codectypes.NewAnyWithValue(denomMetadata)
if err != nil {
k.Logger(ctx).Error("unable to build class metadata from packet data", "error:", err.Error())
return err
}
class = nft.Class{
Id: classID,
Uri: classURI,
Data: metadata,
}
}
var message proto.Message
if err := k.cdc.UnpackAny(class.Data, &message); err != nil {
return err
}
denomMetadata, ok := message.(*onfttypes.DenomMetadata)
if !ok {
return errors.New("unsupported classMetadata")
}
if denomMetadata.RoyaltyReceivers != nil && !k.validRoyaltyReceiverAddresses(denomMetadata.RoyaltyReceivers) {
denomMetadata.RoyaltyReceivers = nil
dMeta, err := codectypes.NewAnyWithValue(denomMetadata)
if err != nil {
return err
}
class.Data = dMeta
}
if k.nk.HasClass(ctx, classID) {
return k.nk.UpdateClass(ctx, class)
}
return k.nk.SaveClass(ctx, class)
}
// Mint implement the method of ICS721Keeper.Mint
func (k Keeper) Mint(ctx sdk.Context,
classID,
tokenID,
tokenURI,
tokenData string,
receiver sdk.AccAddress,
) error {
token, err := k.nb.Build(classID, tokenID, tokenURI, tokenData)
if err != nil {
k.Logger(ctx).Error("unable to build token from packet data", "error:", err.Error())
return err
}
return k.nk.Mint(ctx, token, receiver)
}
// Transfer implement the method of ICS721Keeper.Transfer
func (k Keeper) Transfer(
ctx sdk.Context,
classID,
tokenID,
_ string,
receiver sdk.AccAddress,
) error {
_nft, _ := k.nk.GetNFT(ctx, classID, tokenID)
nftMetadata, err := onfttypes.UnmarshalNFTMetadata(k.cdc, _nft.Data.GetValue())
if err != nil {
return err
}
if !nftMetadata.Transferable {
k.Logger(ctx).Error("non-transferable nft")
return errorsmod.Wrap(sdkerrors.ErrUnauthorized, "non-transferable nft")
}
if err := k.nk.Transfer(ctx, classID, tokenID, receiver); err != nil {
return err
}
return nil
}
// GetClass implement the method of ICS721Keeper.GetClass
func (k Keeper) GetClass(ctx sdk.Context, classID string) (nfttransfer.Class, bool) {
class, exist := k.nk.GetClass(ctx, classID)
if !exist {
return nil, false
}
metadata, err := k.cb.BuildMetadata(class)
if err != nil {
k.Logger(ctx).Error("encode class data failed")
return nil, false
}
return ICS721Class{
ID: classID,
URI: class.Uri,
Data: metadata,
}, true
}
// GetNFT implement the method of ICS721Keeper.GetNFT
func (k Keeper) GetNFT(ctx sdk.Context, classID, tokenID string) (nfttransfer.NFT, bool) {
_nft, has := k.nk.GetNFT(ctx, classID, tokenID)
if !has {
return nil, false
}
metadata, err := k.nb.BuildMetadata(_nft)
if err != nil {
k.Logger(ctx).Error("encode nft data failed")
return nil, false
}
return ICS721Token{
ClassID: classID,
ID: tokenID,
URI: _nft.Uri,
Data: metadata,
}, true
}
// Burn implement the method of ICS721Keeper.Burn
func (k Keeper) Burn(ctx sdk.Context, classID string, tokenID string) error {
return k.nk.Burn(ctx, classID, tokenID)
}
// GetOwner implement the method of ICS721Keeper.GetOwner
func (k Keeper) GetOwner(ctx sdk.Context, classID string, tokenID string) sdk.AccAddress {
return k.nk.GetOwner(ctx, classID, tokenID)
}
// HasClass implement the method of ICS721Keeper.HasClass
func (k Keeper) HasClass(ctx sdk.Context, classID string) bool {
return k.nk.HasClass(ctx, classID)
}
// Logger returns a module-specific logger.
func (k Keeper) Logger(ctx sdk.Context) log.Logger {
return ctx.Logger().With("module", "ics721/NFTKeeper")
}
func (k Keeper) validRoyaltyReceiverAddresses(addresses []*onfttypes.WeightedAddress) bool {
weightSum := sdk.NewDec(0)
for _, addr := range addresses {
address, err := sdk.AccAddressFromBech32(addr.Address)
if err != nil {
return false
}
if k.bk.BlockedAddr(address) {
return false
}
if !addr.Weight.IsPositive() {
return false
}
if addr.Weight.GT(sdk.NewDec(1)) {
return false
}
weightSum = weightSum.Add(addr.Weight)
}
return weightSum.Equal(sdk.NewDec(1))
}