/
rawtransactions.go
422 lines (360 loc) · 14.2 KB
/
rawtransactions.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
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
// Copyright (c) 2014-2017 The btcsuite developers
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.
package rpcclient
import (
"bytes"
"encoding/hex"
"encoding/json"
"github.com/daglabs/btcd/btcjson"
"github.com/daglabs/btcd/util"
"github.com/daglabs/btcd/util/daghash"
"github.com/daglabs/btcd/wire"
)
// FutureGetRawTransactionResult is a future promise to deliver the result of a
// GetRawTransactionAsync RPC invocation (or an applicable error).
type FutureGetRawTransactionResult chan *response
// Receive waits for the response promised by the future and returns a
// transaction given its hash.
func (r FutureGetRawTransactionResult) Receive() (*util.Tx, error) {
res, err := receiveFuture(r)
if err != nil {
return nil, err
}
// Unmarshal result as a string.
var txHex string
err = json.Unmarshal(res, &txHex)
if err != nil {
return nil, err
}
// Decode the serialized transaction hex to raw bytes.
serializedTx, err := hex.DecodeString(txHex)
if err != nil {
return nil, err
}
// Deserialize the transaction and return it.
var msgTx wire.MsgTx
if err := msgTx.Deserialize(bytes.NewReader(serializedTx)); err != nil {
return nil, err
}
return util.NewTx(&msgTx), nil
}
// GetRawTransactionAsync returns an instance of a type that can be used to get
// the result of the RPC at some future time by invoking the Receive function on
// the returned instance.
//
// See GetRawTransaction for the blocking version and more details.
func (c *Client) GetRawTransactionAsync(txID *daghash.TxID) FutureGetRawTransactionResult {
id := ""
if txID != nil {
id = txID.String()
}
cmd := btcjson.NewGetRawTransactionCmd(id, btcjson.Int(0))
return c.sendCmd(cmd)
}
// GetRawTransaction returns a transaction given its ID.
//
// See GetRawTransactionVerbose to obtain additional information about the
// transaction.
func (c *Client) GetRawTransaction(txID *daghash.TxID) (*util.Tx, error) {
return c.GetRawTransactionAsync(txID).Receive()
}
// FutureGetRawTransactionVerboseResult is a future promise to deliver the
// result of a GetRawTransactionVerboseAsync RPC invocation (or an applicable
// error).
type FutureGetRawTransactionVerboseResult chan *response
// Receive waits for the response promised by the future and returns information
// about a transaction given its hash.
func (r FutureGetRawTransactionVerboseResult) Receive() (*btcjson.TxRawResult, error) {
res, err := receiveFuture(r)
if err != nil {
return nil, err
}
// Unmarshal result as a gettrawtransaction result object.
var rawTxResult btcjson.TxRawResult
err = json.Unmarshal(res, &rawTxResult)
if err != nil {
return nil, err
}
return &rawTxResult, nil
}
// GetRawTransactionVerboseAsync returns an instance of a type that can be used
// to get the result of the RPC at some future time by invoking the Receive
// function on the returned instance.
//
// See GetRawTransactionVerbose for the blocking version and more details.
func (c *Client) GetRawTransactionVerboseAsync(txID *daghash.TxID) FutureGetRawTransactionVerboseResult {
id := ""
if txID != nil {
id = txID.String()
}
cmd := btcjson.NewGetRawTransactionCmd(id, btcjson.Int(1))
return c.sendCmd(cmd)
}
// GetRawTransactionVerbose returns information about a transaction given
// its hash.
//
// See GetRawTransaction to obtain only the transaction already deserialized.
func (c *Client) GetRawTransactionVerbose(txID *daghash.TxID) (*btcjson.TxRawResult, error) {
return c.GetRawTransactionVerboseAsync(txID).Receive()
}
// FutureDecodeRawTransactionResult is a future promise to deliver the result
// of a DecodeRawTransactionAsync RPC invocation (or an applicable error).
type FutureDecodeRawTransactionResult chan *response
// Receive waits for the response promised by the future and returns information
// about a transaction given its serialized bytes.
func (r FutureDecodeRawTransactionResult) Receive() (*btcjson.TxRawResult, error) {
res, err := receiveFuture(r)
if err != nil {
return nil, err
}
// Unmarshal result as a decoderawtransaction result object.
var rawTxResult btcjson.TxRawResult
err = json.Unmarshal(res, &rawTxResult)
if err != nil {
return nil, err
}
return &rawTxResult, nil
}
// DecodeRawTransactionAsync returns an instance of a type that can be used to
// get the result of the RPC at some future time by invoking the Receive
// function on the returned instance.
//
// See DecodeRawTransaction for the blocking version and more details.
func (c *Client) DecodeRawTransactionAsync(serializedTx []byte) FutureDecodeRawTransactionResult {
txHex := hex.EncodeToString(serializedTx)
cmd := btcjson.NewDecodeRawTransactionCmd(txHex)
return c.sendCmd(cmd)
}
// DecodeRawTransaction returns information about a transaction given its
// serialized bytes.
func (c *Client) DecodeRawTransaction(serializedTx []byte) (*btcjson.TxRawResult, error) {
return c.DecodeRawTransactionAsync(serializedTx).Receive()
}
// FutureCreateRawTransactionResult is a future promise to deliver the result
// of a CreateRawTransactionAsync RPC invocation (or an applicable error).
type FutureCreateRawTransactionResult chan *response
// Receive waits for the response promised by the future and returns a new
// transaction spending the provided inputs and sending to the provided
// addresses.
func (r FutureCreateRawTransactionResult) Receive() (*wire.MsgTx, error) {
res, err := receiveFuture(r)
if err != nil {
return nil, err
}
// Unmarshal result as a string.
var txHex string
err = json.Unmarshal(res, &txHex)
if err != nil {
return nil, err
}
// Decode the serialized transaction hex to raw bytes.
serializedTx, err := hex.DecodeString(txHex)
if err != nil {
return nil, err
}
// Deserialize the transaction and return it.
var msgTx wire.MsgTx
if err := msgTx.Deserialize(bytes.NewReader(serializedTx)); err != nil {
return nil, err
}
return &msgTx, nil
}
// CreateRawTransactionAsync returns an instance of a type that can be used to
// get the result of the RPC at some future time by invoking the Receive
// function on the returned instance.
//
// See CreateRawTransaction for the blocking version and more details.
func (c *Client) CreateRawTransactionAsync(inputs []btcjson.TransactionInput,
amounts map[util.Address]util.Amount, lockTime *uint64) FutureCreateRawTransactionResult {
convertedAmts := make(map[string]float64, len(amounts))
for addr, amount := range amounts {
convertedAmts[addr.String()] = amount.ToBTC()
}
cmd := btcjson.NewCreateRawTransactionCmd(inputs, convertedAmts, lockTime)
return c.sendCmd(cmd)
}
// CreateRawTransaction returns a new transaction spending the provided inputs
// and sending to the provided addresses.
func (c *Client) CreateRawTransaction(inputs []btcjson.TransactionInput,
amounts map[util.Address]util.Amount, lockTime *uint64) (*wire.MsgTx, error) {
return c.CreateRawTransactionAsync(inputs, amounts, lockTime).Receive()
}
// FutureSendRawTransactionResult is a future promise to deliver the result
// of a SendRawTransactionAsync RPC invocation (or an applicable error).
type FutureSendRawTransactionResult chan *response
// Receive waits for the response promised by the future and returns the result
// of submitting the encoded transaction to the server which then relays it to
// the network.
func (r FutureSendRawTransactionResult) Receive() (*daghash.TxID, error) {
res, err := receiveFuture(r)
if err != nil {
return nil, err
}
// Unmarshal result as a string.
var txIDStr string
err = json.Unmarshal(res, &txIDStr)
if err != nil {
return nil, err
}
return daghash.NewTxIDFromStr(txIDStr)
}
// SendRawTransactionAsync returns an instance of a type that can be used to get
// the result of the RPC at some future time by invoking the Receive function on
// the returned instance.
//
// See SendRawTransaction for the blocking version and more details.
func (c *Client) SendRawTransactionAsync(tx *wire.MsgTx, allowHighFees bool) FutureSendRawTransactionResult {
txHex := ""
if tx != nil {
// Serialize the transaction and convert to hex string.
buf := bytes.NewBuffer(make([]byte, 0, tx.SerializeSize()))
if err := tx.Serialize(buf); err != nil {
return newFutureError(err)
}
txHex = hex.EncodeToString(buf.Bytes())
}
cmd := btcjson.NewSendRawTransactionCmd(txHex, &allowHighFees)
return c.sendCmd(cmd)
}
// SendRawTransaction submits the encoded transaction to the server which will
// then relay it to the network.
func (c *Client) SendRawTransaction(tx *wire.MsgTx, allowHighFees bool) (*daghash.TxID, error) {
return c.SendRawTransactionAsync(tx, allowHighFees).Receive()
}
// FutureSearchRawTransactionsResult is a future promise to deliver the result
// of the SearchRawTransactionsAsync RPC invocation (or an applicable error).
type FutureSearchRawTransactionsResult chan *response
// Receive waits for the response promised by the future and returns the
// found raw transactions.
func (r FutureSearchRawTransactionsResult) Receive() ([]*wire.MsgTx, error) {
res, err := receiveFuture(r)
if err != nil {
return nil, err
}
// Unmarshal as an array of strings.
var searchRawTxnsResult []string
err = json.Unmarshal(res, &searchRawTxnsResult)
if err != nil {
return nil, err
}
// Decode and deserialize each transaction.
msgTxns := make([]*wire.MsgTx, 0, len(searchRawTxnsResult))
for _, hexTx := range searchRawTxnsResult {
// Decode the serialized transaction hex to raw bytes.
serializedTx, err := hex.DecodeString(hexTx)
if err != nil {
return nil, err
}
// Deserialize the transaction and add it to the result slice.
var msgTx wire.MsgTx
err = msgTx.Deserialize(bytes.NewReader(serializedTx))
if err != nil {
return nil, err
}
msgTxns = append(msgTxns, &msgTx)
}
return msgTxns, nil
}
// SearchRawTransactionsAsync returns an instance of a type that can be used to
// get the result of the RPC at some future time by invoking the Receive
// function on the returned instance.
//
// See SearchRawTransactions for the blocking version and more details.
func (c *Client) SearchRawTransactionsAsync(address util.Address, skip, count int, reverse bool, filterAddrs []string) FutureSearchRawTransactionsResult {
addr := address.EncodeAddress()
verbose := btcjson.Bool(false)
cmd := btcjson.NewSearchRawTransactionsCmd(addr, verbose, &skip, &count,
nil, &reverse, &filterAddrs)
return c.sendCmd(cmd)
}
// SearchRawTransactions returns transactions that involve the passed address.
//
// NOTE: Chain servers do not typically provide this capability unless it has
// specifically been enabled.
//
// See SearchRawTransactionsVerbose to retrieve a list of data structures with
// information about the transactions instead of the transactions themselves.
func (c *Client) SearchRawTransactions(address util.Address, skip, count int, reverse bool, filterAddrs []string) ([]*wire.MsgTx, error) {
return c.SearchRawTransactionsAsync(address, skip, count, reverse, filterAddrs).Receive()
}
// FutureSearchRawTransactionsVerboseResult is a future promise to deliver the
// result of the SearchRawTransactionsVerboseAsync RPC invocation (or an
// applicable error).
type FutureSearchRawTransactionsVerboseResult chan *response
// Receive waits for the response promised by the future and returns the
// found raw transactions.
func (r FutureSearchRawTransactionsVerboseResult) Receive() ([]*btcjson.SearchRawTransactionsResult, error) {
res, err := receiveFuture(r)
if err != nil {
return nil, err
}
// Unmarshal as an array of raw transaction results.
var result []*btcjson.SearchRawTransactionsResult
err = json.Unmarshal(res, &result)
if err != nil {
return nil, err
}
return result, nil
}
// SearchRawTransactionsVerboseAsync returns an instance of a type that can be
// used to get the result of the RPC at some future time by invoking the Receive
// function on the returned instance.
//
// See SearchRawTransactionsVerbose for the blocking version and more details.
func (c *Client) SearchRawTransactionsVerboseAsync(address util.Address, skip,
count int, includePrevOut, reverse bool, filterAddrs *[]string) FutureSearchRawTransactionsVerboseResult {
addr := address.EncodeAddress()
verbose := btcjson.Bool(true)
var prevOut *bool
if includePrevOut {
prevOut = btcjson.Bool(true)
}
cmd := btcjson.NewSearchRawTransactionsCmd(addr, verbose, &skip, &count,
prevOut, &reverse, filterAddrs)
return c.sendCmd(cmd)
}
// SearchRawTransactionsVerbose returns a list of data structures that describe
// transactions which involve the passed address.
//
// NOTE: Chain servers do not typically provide this capability unless it has
// specifically been enabled.
//
// See SearchRawTransactions to retrieve a list of raw transactions instead.
func (c *Client) SearchRawTransactionsVerbose(address util.Address, skip,
count int, includePrevOut, reverse bool, filterAddrs []string) ([]*btcjson.SearchRawTransactionsResult, error) {
return c.SearchRawTransactionsVerboseAsync(address, skip, count,
includePrevOut, reverse, &filterAddrs).Receive()
}
// FutureDecodeScriptResult is a future promise to deliver the result
// of a DecodeScriptAsync RPC invocation (or an applicable error).
type FutureDecodeScriptResult chan *response
// Receive waits for the response promised by the future and returns information
// about a script given its serialized bytes.
func (r FutureDecodeScriptResult) Receive() (*btcjson.DecodeScriptResult, error) {
res, err := receiveFuture(r)
if err != nil {
return nil, err
}
// Unmarshal result as a decodescript result object.
var decodeScriptResult btcjson.DecodeScriptResult
err = json.Unmarshal(res, &decodeScriptResult)
if err != nil {
return nil, err
}
return &decodeScriptResult, nil
}
// DecodeScriptAsync returns an instance of a type that can be used to
// get the result of the RPC at some future time by invoking the Receive
// function on the returned instance.
//
// See DecodeScript for the blocking version and more details.
func (c *Client) DecodeScriptAsync(serializedScript []byte) FutureDecodeScriptResult {
scriptHex := hex.EncodeToString(serializedScript)
cmd := btcjson.NewDecodeScriptCmd(scriptHex)
return c.sendCmd(cmd)
}
// DecodeScript returns information about a script given its serialized bytes.
func (c *Client) DecodeScript(serializedScript []byte) (*btcjson.DecodeScriptResult, error) {
return c.DecodeScriptAsync(serializedScript).Receive()
}