/
msg_server.go
141 lines (111 loc) · 3.65 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
package keeper
import (
"context"
"errors"
"strings"
errorsmod "cosmossdk.io/errors"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
"github.com/cosmos/cosmos-sdk/x/authz"
)
var _ authz.MsgServer = Keeper{}
// Grant implements the MsgServer.Grant method to create a new grant.
func (k Keeper) Grant(goCtx context.Context, msg *authz.MsgGrant) (*authz.MsgGrantResponse, error) {
if strings.EqualFold(msg.Grantee, msg.Granter) {
return nil, authz.ErrGranteeIsGranter
}
grantee, err := k.authKeeper.AddressCodec().StringToBytes(msg.Grantee)
if err != nil {
return nil, sdkerrors.ErrInvalidAddress.Wrapf("invalid grantee address: %s", err)
}
granter, err := k.authKeeper.AddressCodec().StringToBytes(msg.Granter)
if err != nil {
return nil, sdkerrors.ErrInvalidAddress.Wrapf("invalid granter address: %s", err)
}
if err := msg.Grant.ValidateBasic(); err != nil {
return nil, err
}
// create the account if it is not in account state
ctx := sdk.UnwrapSDKContext(goCtx)
granteeAcc := k.authKeeper.GetAccount(ctx, grantee)
if granteeAcc == nil {
if k.bankKeeper.BlockedAddr(grantee) {
return nil, sdkerrors.ErrUnauthorized.Wrapf("%s is not allowed to receive funds", grantee)
}
granteeAcc = k.authKeeper.NewAccountWithAddress(ctx, grantee)
k.authKeeper.SetAccount(ctx, granteeAcc)
}
authorization, err := msg.GetAuthorization()
if err != nil {
return nil, err
}
t := authorization.MsgTypeURL()
if k.router.HandlerByTypeURL(t) == nil {
return nil, sdkerrors.ErrInvalidType.Wrapf("%s doesn't exist.", t)
}
err = k.SaveGrant(ctx, grantee, granter, authorization, msg.Grant.Expiration)
if err != nil {
return nil, err
}
return &authz.MsgGrantResponse{}, nil
}
// Revoke implements the MsgServer.Revoke method.
func (k Keeper) Revoke(goCtx context.Context, msg *authz.MsgRevoke) (*authz.MsgRevokeResponse, error) {
if strings.EqualFold(msg.Grantee, msg.Granter) {
return nil, authz.ErrGranteeIsGranter
}
grantee, err := k.authKeeper.AddressCodec().StringToBytes(msg.Grantee)
if err != nil {
return nil, sdkerrors.ErrInvalidAddress.Wrapf("invalid grantee address: %s", err)
}
granter, err := k.authKeeper.AddressCodec().StringToBytes(msg.Granter)
if err != nil {
return nil, sdkerrors.ErrInvalidAddress.Wrapf("invalid granter address: %s", err)
}
if msg.MsgTypeUrl == "" {
return nil, sdkerrors.ErrInvalidRequest.Wrap("missing msg method name")
}
ctx := sdk.UnwrapSDKContext(goCtx)
if err = k.DeleteGrant(ctx, grantee, granter, msg.MsgTypeUrl); err != nil {
return nil, err
}
return &authz.MsgRevokeResponse{}, nil
}
// Exec implements the MsgServer.Exec method.
func (k Keeper) Exec(goCtx context.Context, msg *authz.MsgExec) (*authz.MsgExecResponse, error) {
ctx := sdk.UnwrapSDKContext(goCtx)
if msg.Grantee == "" {
return nil, errors.New("empty address string is not allowed")
}
grantee, err := k.authKeeper.AddressCodec().StringToBytes(msg.Grantee)
if err != nil {
return nil, sdkerrors.ErrInvalidAddress.Wrapf("invalid grantee address: %s", err)
}
if len(msg.Msgs) == 0 {
return nil, sdkerrors.ErrInvalidRequest.Wrapf("messages cannot be empty")
}
msgs, err := msg.GetMessages()
if err != nil {
return nil, err
}
if err := validateMsgs(msgs); err != nil {
return nil, err
}
results, err := k.DispatchActions(ctx, grantee, msgs)
if err != nil {
return nil, err
}
return &authz.MsgExecResponse{Results: results}, nil
}
func validateMsgs(msgs []sdk.Msg) error {
for i, msg := range msgs {
m, ok := msg.(sdk.HasValidateBasic)
if !ok {
continue
}
if err := m.ValidateBasic(); err != nil {
return errorsmod.Wrapf(err, "msg %d", i)
}
}
return nil
}