/
handler.go
236 lines (191 loc) · 7.92 KB
/
handler.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
224
225
226
227
228
229
230
231
232
233
234
235
236
package keeper
import (
"fmt"
"github.com/commercionetwork/commercionetwork/x/government"
"github.com/commercionetwork/commercionetwork/x/id/internal/types"
sdk "github.com/cosmos/cosmos-sdk/types"
)
// NewHandler returns a handler for type messages and is essentially a sub-router that directs
// messages coming into this module to the proper handler.
func NewHandler(keeper Keeper, govKeeper government.Keeper) sdk.Handler {
return func(ctx sdk.Context, msg sdk.Msg) sdk.Result {
switch msg := msg.(type) {
case types.MsgSetIdentity:
return handleMsgSetIdentity(ctx, keeper, msg)
case types.MsgRequestDidDeposit:
return handleMsgRequestDidDeposit(ctx, keeper, msg)
case types.MsgInvalidateDidDepositRequest:
return handleMsgInvalidateDidDepositRequest(ctx, keeper, govKeeper, msg)
case types.MsgRequestDidPowerUp:
return handleMsgRequestDidPowerUp(ctx, keeper, msg)
case types.MsgInvalidateDidPowerUpRequest:
return handleMsgInvalidateDidPowerUpRequest(ctx, keeper, govKeeper, msg)
case types.MsgMoveDeposit:
return handleMsgMoveDeposit(ctx, keeper, govKeeper, msg)
case types.MsgPowerUpDid:
return handleMsgPowerUpDid(ctx, keeper, govKeeper, msg)
default:
errMsg := fmt.Sprintf("Unrecognized %s message type: %v", types.ModuleName, msg.Type())
return sdk.ErrUnknownRequest(errMsg).Result()
}
}
}
// handleMsgSetIdentity allows to handle a MsgSetIdentity checking that the user that wants to set an identity is
// the real owner of that identity.
// If the user is not allowed to use that identity, returns an error.
func handleMsgSetIdentity(ctx sdk.Context, keeper Keeper, msg types.MsgSetIdentity) sdk.Result {
if err := keeper.SaveDidDocument(ctx, types.DidDocument(msg)); err != nil {
return err.Result()
}
return sdk.Result{}
}
// ----------------------------
// --- Did deposit requests
// ----------------------------
func handleMsgRequestDidDeposit(ctx sdk.Context, keeper Keeper, msg types.MsgRequestDidDeposit) sdk.Result {
// Create the request
request := types.DidDepositRequest{
Recipient: msg.Recipient,
Amount: msg.Amount,
Proof: msg.Proof,
EncryptionKey: msg.EncryptionKey,
FromAddress: msg.FromAddress,
}
if err := keeper.StoreDidDepositRequest(ctx, request); err != nil {
return err.Result()
}
return sdk.Result{}
}
func handleMsgInvalidateDidDepositRequest(ctx sdk.Context, keeper Keeper, govKeeper government.Keeper,
msg types.MsgInvalidateDidDepositRequest) sdk.Result {
// Check the status
if msg.Status.Type != types.StatusRejected && msg.Status.Type != types.StatusCanceled {
return sdk.ErrUnknownRequest(fmt.Sprintf("Invalid status: %s", msg.Status.Type)).Result()
}
// Check the signer if status is approved or rejected
validGovernment := govKeeper.GetGovernmentAddress(ctx).Equals(msg.Editor)
if msg.Status.Type == types.StatusRejected && !validGovernment {
msg := fmt.Sprintf("Cannot set status of type %s without being the government", msg.Status.Type)
return sdk.ErrInvalidAddress(msg).Result()
}
// Get the existing request
existing, err := keeper.GetDidDepositRequestByProof(ctx, msg.DepositProof)
if err != nil {
return sdk.ErrUnknownRequest(err.Error()).Result()
}
// Check the signer if status is canceled
if msg.Status.Type == types.StatusCanceled && !existing.FromAddress.Equals(msg.Editor) {
return sdk.ErrInvalidAddress("Cannot edit this request without being the original poster").Result()
}
// Check that the existing request does not have a status set yet
if existing.Status != nil {
msg := fmt.Sprintf("Did deposit request with proof %s already has a valid status", existing.Proof)
return sdk.ErrUnknownRequest(msg).Result()
}
// Change the status, return any result
if err := keeper.ChangeDepositRequestStatus(ctx, msg.DepositProof, msg.Status); err != nil {
return err.Result()
}
return sdk.Result{}
}
// ----------------------------
// --- Did power up requests
// ----------------------------
func handleMsgRequestDidPowerUp(ctx sdk.Context, keeper Keeper, msg types.MsgRequestDidPowerUp) sdk.Result {
// Crete the request
request := types.DidPowerUpRequest{
Claimant: msg.Claimant,
Amount: msg.Amount,
Proof: msg.Proof,
EncryptionKey: msg.EncryptionKey,
}
if err := keeper.StorePowerUpRequest(ctx, request); err != nil {
return err.Result()
}
return sdk.Result{}
}
func handleMsgInvalidateDidPowerUpRequest(ctx sdk.Context, keeper Keeper, govKeeper government.Keeper,
msg types.MsgInvalidateDidPowerUpRequest) sdk.Result {
// Check the status
if msg.Status.Type != types.StatusRejected && msg.Status.Type != types.StatusCanceled {
return sdk.ErrUnknownRequest(fmt.Sprintf("Invalid status: %s", msg.Status.Type)).Result()
}
// Check the signer if status is approved or rejected
validGovernment := govKeeper.GetGovernmentAddress(ctx).Equals(msg.Editor)
if msg.Status.Type == types.StatusRejected && !validGovernment {
msg := fmt.Sprintf("Cannot set status of type %s without being the government", msg.Status.Type)
return sdk.ErrInvalidAddress(msg).Result()
}
// Get the existing request
existing, err := keeper.GetPowerUpRequestByProof(ctx, msg.PowerUpProof)
if err != nil {
return sdk.ErrUnknownRequest(err.Error()).Result()
}
// Check the signer if status is canceled
if msg.Status.Type == types.StatusCanceled && !existing.Claimant.Equals(msg.Editor) {
return sdk.ErrInvalidAddress("Cannot edit this request without being the original poster").Result()
}
// Check that the existing request does not have a status set yet
if existing.Status != nil {
msg := fmt.Sprintf("Did power up request with proof %s already has a valid status", existing.Proof)
return sdk.ErrUnknownRequest(msg).Result()
}
// Change the status, return any result
if err := keeper.ChangePowerUpRequestStatus(ctx, msg.PowerUpProof, msg.Status); err != nil {
return err.Result()
}
return sdk.Result{}
}
// ------------------------
// --- Deposits handling
// ------------------------
func handleMsgMoveDeposit(ctx sdk.Context, keeper Keeper, govKeeper government.Keeper, msg types.MsgMoveDeposit) sdk.Result {
// Validate the signer
if !govKeeper.GetGovernmentAddress(ctx).Equals(msg.Signer) {
msg := fmt.Sprintf("Invalid signer, must be government: %s", msg.Signer)
return sdk.ErrInvalidAddress(msg).Result()
}
// Get the existing request
existing, err := keeper.GetDidDepositRequestByProof(ctx, msg.DepositProof)
if err != nil {
return sdk.ErrUnknownRequest(err.Error()).Result()
}
// Check that the existing request does not have a status set yet
if existing.Status != nil {
msg := fmt.Sprintf("Did deposit request with proof %s already has a valid status", existing.Proof)
return sdk.ErrUnknownRequest(msg).Result()
}
// Move the deposit amount
if err := keeper.DepositIntoPool(ctx, existing.FromAddress, existing.Amount); err != nil {
return err.Result()
}
// Update the request
status := types.RequestStatus{Type: types.StatusApproved}
if err := keeper.ChangeDepositRequestStatus(ctx, existing.Proof, status); err != nil {
return err.Result()
}
return sdk.Result{}
}
func handleMsgPowerUpDid(ctx sdk.Context, keeper Keeper, govKeeper government.Keeper, msg types.MsgPowerUpDid) sdk.Result {
// Validate the signer
if !govKeeper.GetGovernmentAddress(ctx).Equals(msg.Signer) {
msg := fmt.Sprintf("Invalid signer, must be government: %s", msg.Signer)
return sdk.ErrInvalidAddress(msg).Result()
}
// Get the existing references
references := keeper.GetHandledPowerUpRequestsReferences(ctx)
if references.Contains(msg.ActivationReference) {
msg := fmt.Sprintf("Power up with reference %s already handled", msg.ActivationReference)
return sdk.ErrUnknownRequest(msg).Result()
}
// Move the deposit amount
if err := keeper.FundAccount(ctx, msg.Recipient, msg.Amount); err != nil {
return err.Result()
}
// Set the request as handled
err := keeper.SetPowerUpRequestHandled(ctx, msg.ActivationReference)
if err != nil {
return sdk.ResultFromError(err)
}
return sdk.Result{}
}