forked from cosmos/cosmos-sdk
-
Notifications
You must be signed in to change notification settings - Fork 0
/
helpers.go
347 lines (293 loc) · 8.31 KB
/
helpers.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
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
package context
import (
"fmt"
"github.com/tendermint/tendermint/libs/common"
"github.com/pkg/errors"
"github.com/cosmos/cosmos-sdk/wire"
"github.com/cosmos/cosmos-sdk/x/auth"
cmn "github.com/tendermint/tendermint/libs/common"
rpcclient "github.com/tendermint/tendermint/rpc/client"
ctypes "github.com/tendermint/tendermint/rpc/core/types"
"github.com/cosmos/cosmos-sdk/client"
"github.com/cosmos/cosmos-sdk/client/keys"
sdk "github.com/cosmos/cosmos-sdk/types"
)
// Broadcast the transaction bytes to Tendermint
func (ctx CoreContext) BroadcastTx(tx []byte) (*ctypes.ResultBroadcastTxCommit, error) {
node, err := ctx.GetNode()
if err != nil {
return nil, err
}
res, err := node.BroadcastTxCommit(tx)
if err != nil {
return res, err
}
if res.CheckTx.Code != uint32(0) {
return res, errors.Errorf("checkTx failed: (%d) %s",
res.CheckTx.Code,
res.CheckTx.Log)
}
if res.DeliverTx.Code != uint32(0) {
return res, errors.Errorf("deliverTx failed: (%d) %s",
res.DeliverTx.Code,
res.DeliverTx.Log)
}
return res, err
}
// Broadcast the transaction bytes to Tendermint
func (ctx CoreContext) BroadcastTxAsync(tx []byte) (*ctypes.ResultBroadcastTx, error) {
node, err := ctx.GetNode()
if err != nil {
return nil, err
}
res, err := node.BroadcastTxAsync(tx)
if err != nil {
return res, err
}
return res, err
}
// Query information about the connected node
func (ctx CoreContext) Query(path string) (res []byte, err error) {
return ctx.query(path, nil)
}
// QueryStore from Tendermint with the provided key and storename
func (ctx CoreContext) QueryStore(key cmn.HexBytes, storeName string) (res []byte, err error) {
return ctx.queryStore(key, storeName, "key")
}
// Query from Tendermint with the provided storename and subspace
func (ctx CoreContext) QuerySubspace(cdc *wire.Codec, subspace []byte, storeName string) (res []sdk.KVPair, err error) {
resRaw, err := ctx.queryStore(subspace, storeName, "subspace")
if err != nil {
return res, err
}
cdc.MustUnmarshalBinary(resRaw, &res)
return
}
// Query from Tendermint with the provided storename and path
func (ctx CoreContext) query(path string, key common.HexBytes) (res []byte, err error) {
node, err := ctx.GetNode()
if err != nil {
return res, err
}
opts := rpcclient.ABCIQueryOptions{
Height: ctx.Height,
Trusted: ctx.TrustNode,
}
result, err := node.ABCIQueryWithOptions(path, key, opts)
if err != nil {
return res, err
}
resp := result.Response
if resp.Code != uint32(0) {
return res, errors.Errorf("query failed: (%d) %s", resp.Code, resp.Log)
}
return resp.Value, nil
}
// Query from Tendermint with the provided storename and path
func (ctx CoreContext) queryStore(key cmn.HexBytes, storeName, endPath string) (res []byte, err error) {
path := fmt.Sprintf("/store/%s/%s", storeName, endPath)
return ctx.query(path, key)
}
// Get the from address from the name flag
func (ctx CoreContext) GetFromAddress() (from sdk.AccAddress, err error) {
keybase, err := keys.GetKeyBase()
if err != nil {
return nil, err
}
name := ctx.FromAddressName
if name == "" {
return nil, errors.Errorf("must provide a from address name")
}
info, err := keybase.Get(name)
if err != nil {
return nil, errors.Errorf("no key for: %s", name)
}
return sdk.AccAddress(info.GetPubKey().Address()), nil
}
// sign and build the transaction from the msg
func (ctx CoreContext) SignAndBuild(name, passphrase string, msgs []sdk.Msg, cdc *wire.Codec) ([]byte, error) {
// build the Sign Messsage from the Standard Message
chainID := ctx.ChainID
if chainID == "" {
return nil, errors.Errorf("chain ID required but not specified")
}
accnum := ctx.AccountNumber
sequence := ctx.Sequence
memo := ctx.Memo
fee := sdk.Coin{}
if ctx.Fee != "" {
parsedFee, err := sdk.ParseCoin(ctx.Fee)
if err != nil {
return nil, err
}
fee = parsedFee
}
signMsg := auth.StdSignMsg{
ChainID: chainID,
AccountNumber: accnum,
Sequence: sequence,
Msgs: msgs,
Memo: memo,
Fee: auth.NewStdFee(ctx.Gas, fee), // TODO run simulate to estimate gas?
}
keybase, err := keys.GetKeyBase()
if err != nil {
return nil, err
}
// sign and build
bz := signMsg.Bytes()
sig, pubkey, err := keybase.Sign(name, passphrase, bz)
if err != nil {
return nil, err
}
sigs := []auth.StdSignature{{
PubKey: pubkey,
Signature: sig,
AccountNumber: accnum,
Sequence: sequence,
}}
// marshal bytes
tx := auth.NewStdTx(signMsg.Msgs, signMsg.Fee, sigs, memo)
return cdc.MarshalBinary(tx)
}
// sign and build the transaction from the msg
func (ctx CoreContext) ensureSignBuild(name string, msgs []sdk.Msg, cdc *wire.Codec) (tyBytes []byte, err error) {
err = EnsureAccountExists(ctx, name)
if err != nil {
return nil, err
}
ctx, err = EnsureAccountNumber(ctx)
if err != nil {
return nil, err
}
// default to next sequence number if none provided
ctx, err = EnsureSequence(ctx)
if err != nil {
return nil, err
}
var txBytes []byte
keybase, err := keys.GetKeyBase()
if err != nil {
return nil, err
}
info, err := keybase.Get(name)
if err != nil {
return nil, err
}
var passphrase string
// Only need a passphrase for locally-stored keys
if info.GetType() == "local" {
passphrase, err = ctx.GetPassphraseFromStdin(name)
if err != nil {
return nil, fmt.Errorf("Error fetching passphrase: %v", err)
}
}
txBytes, err = ctx.SignAndBuild(name, passphrase, msgs, cdc)
if err != nil {
return nil, fmt.Errorf("Error signing transaction: %v", err)
}
return txBytes, err
}
// sign and build the transaction from the msg
func (ctx CoreContext) EnsureSignBuildBroadcast(name string, msgs []sdk.Msg, cdc *wire.Codec) (err error) {
txBytes, err := ctx.ensureSignBuild(name, msgs, cdc)
if err != nil {
return err
}
if ctx.Async {
res, err := ctx.BroadcastTxAsync(txBytes)
if err != nil {
return err
}
if ctx.JSON {
type toJSON struct {
TxHash string
}
valueToJSON := toJSON{res.Hash.String()}
JSON, err := cdc.MarshalJSON(valueToJSON)
if err != nil {
return err
}
fmt.Println(string(JSON))
} else {
fmt.Println("Async tx sent. tx hash: ", res.Hash.String())
}
return nil
}
res, err := ctx.BroadcastTx(txBytes)
if err != nil {
return err
}
if ctx.JSON {
// Since JSON is intended for automated scripts, always include response in JSON mode
type toJSON struct {
Height int64
TxHash string
Response string
}
valueToJSON := toJSON{res.Height, res.Hash.String(), fmt.Sprintf("%+v", res.DeliverTx)}
JSON, err := cdc.MarshalJSON(valueToJSON)
if err != nil {
return err
}
fmt.Println(string(JSON))
return nil
}
if ctx.PrintResponse {
fmt.Printf("Committed at block %d. Hash: %s Response:%+v \n", res.Height, res.Hash.String(), res.DeliverTx)
} else {
fmt.Printf("Committed at block %d. Hash: %s \n", res.Height, res.Hash.String())
}
return nil
}
// get the next sequence for the account address
func (ctx CoreContext) GetAccountNumber(address []byte) (int64, error) {
if ctx.Decoder == nil {
return 0, errors.New("accountDecoder required but not provided")
}
res, err := ctx.QueryStore(auth.AddressStoreKey(address), ctx.AccountStore)
if err != nil {
return 0, err
}
if len(res) == 0 {
fmt.Printf("No account found. Returning 0.\n")
return 0, err
}
account, err := ctx.Decoder(res)
if err != nil {
panic(err)
}
return account.GetAccountNumber(), nil
}
// get the next sequence for the account address
func (ctx CoreContext) NextSequence(address []byte) (int64, error) {
if ctx.Decoder == nil {
return 0, errors.New("accountDecoder required but not provided")
}
res, err := ctx.QueryStore(auth.AddressStoreKey(address), ctx.AccountStore)
if err != nil {
return 0, err
}
if len(res) == 0 {
fmt.Printf("No account found, defaulting to sequence 0\n")
return 0, err
}
account, err := ctx.Decoder(res)
if err != nil {
panic(err)
}
return account.GetSequence(), nil
}
// get passphrase from std input
func (ctx CoreContext) GetPassphraseFromStdin(name string) (pass string, err error) {
buf := client.BufferStdin()
prompt := fmt.Sprintf("Password to sign with '%s':", name)
return client.GetPassword(prompt, buf)
}
// GetNode prepares a simple rpc.Client
func (ctx CoreContext) GetNode() (rpcclient.Client, error) {
if ctx.Client == nil {
return nil, errors.New("must define node URI")
}
return ctx.Client, nil
}