-
Notifications
You must be signed in to change notification settings - Fork 13
/
transfer.go
224 lines (180 loc) · 5.95 KB
/
transfer.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
// SPDX-License-Identifier: ISC
// Copyright (c) 2014-2020 Bitmark Inc.
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.
package rpccalls
import (
"encoding/hex"
"golang.org/x/crypto/ed25519"
"github.com/bitmark-inc/bitmarkd/account"
"github.com/bitmark-inc/bitmarkd/command/bitmark-cli/configuration"
"github.com/bitmark-inc/bitmarkd/fault"
"github.com/bitmark-inc/bitmarkd/merkle"
"github.com/bitmark-inc/bitmarkd/pay"
"github.com/bitmark-inc/bitmarkd/rpc/bitmark"
"github.com/bitmark-inc/bitmarkd/transactionrecord"
)
// TransferData - data for a transfer request
type TransferData struct {
Owner *configuration.Private
NewOwner *account.Account
TxId string
}
// TransferCountersignData - countersign data request
type TransferCountersignData struct {
Transfer string
NewOwner *configuration.Private
}
// TransferReply - JSON data to output after transfer completes
type TransferReply struct {
TransferId merkle.Digest `json:"transferId"`
BitmarkId merkle.Digest `json:"bitmarkId"`
PayId pay.PayId `json:"payId"`
Payments map[string]transactionrecord.PaymentAlternative `json:"payments"`
Commands map[string]string `json:"commands,omitempty"`
}
// TransferSingleSignedReply - response to single signature
type TransferSingleSignedReply struct {
Identity string `json:"identity"`
Transfer string `json:"transfer"`
}
// Transfer - perform a bitmark transfer
func (client *Client) Transfer(transferConfig *TransferData) (*TransferReply, error) {
var link merkle.Digest
err := link.UnmarshalText([]byte(transferConfig.TxId))
if nil != err {
return nil, err
}
transfer, err := makeTransferUnratified(client.testnet, link, transferConfig.Owner, transferConfig.NewOwner)
if nil != err {
return nil, err
}
if nil == transfer {
return nil, fault.MakeTransferFailed
}
client.printJson("Transfer Request", transfer)
var reply bitmark.TransferReply
err = client.client.Call("Bitmark.Transfer", transfer, &reply)
if err != nil {
return nil, err
}
tpid, err := reply.PayId.MarshalText()
if nil != err {
return nil, err
}
commands := make(map[string]string)
for _, payment := range reply.Payments {
currency := payment[0].Currency
commands[currency.String()] = paymentCommand(client.testnet, currency, string(tpid), payment)
}
client.printJson("Transfer Reply", reply)
// make response
response := TransferReply{
TransferId: reply.TxId,
BitmarkId: reply.BitmarkId,
PayId: reply.PayId,
Payments: reply.Payments,
Commands: commands,
}
return &response, nil
}
// SingleSignedTransfer - perform a single signed transfer
func (client *Client) SingleSignedTransfer(transferConfig *TransferData) (*TransferSingleSignedReply, error) {
var link merkle.Digest
err := link.UnmarshalText([]byte(transferConfig.TxId))
if nil != err {
return nil, err
}
packed, transfer, err := makeTransferOneSignature(client.testnet, link, transferConfig.Owner, transferConfig.NewOwner)
if nil != err {
return nil, err
}
if nil == transfer {
return nil, fault.MakeTransferFailed
}
client.printJson("Transfer Request", transfer)
response := TransferSingleSignedReply{
Identity: transfer.GetOwner().String(),
Transfer: hex.EncodeToString(packed),
}
return &response, nil
}
// CountersignTransfer - perform as countersigned transfer
func (client *Client) CountersignTransfer(transfer *transactionrecord.BitmarkTransferCountersigned) (*TransferReply, error) {
client.printJson("Transfer Request", transfer)
var reply bitmark.TransferReply
err := client.client.Call("Bitmark.Transfer", transfer, &reply)
if nil != err {
return nil, err
}
tpid, err := reply.PayId.MarshalText()
if nil != err {
return nil, err
}
commands := make(map[string]string)
for _, payment := range reply.Payments {
currency := payment[0].Currency
commands[currency.String()] = paymentCommand(client.testnet, currency, string(tpid), payment)
}
client.printJson("Transfer Reply", reply)
// make response
response := TransferReply{
TransferId: reply.TxId,
BitmarkId: reply.BitmarkId,
PayId: reply.PayId,
Payments: reply.Payments,
Commands: commands,
}
return &response, nil
}
func makeTransferUnratified(testnet bool, link merkle.Digest, owner *configuration.Private, newOwner *account.Account) (transactionrecord.BitmarkTransfer, error) {
r := transactionrecord.BitmarkTransferUnratified{
Link: link,
Owner: newOwner,
Signature: nil,
}
ownerAccount := owner.PrivateKey.Account()
// pack without signature
packed, err := r.Pack(ownerAccount)
if nil == err {
return nil, fault.MakeTransferFailed
} else if fault.InvalidSignature != err {
return nil, err
}
// attach signature
signature := ed25519.Sign(owner.PrivateKey.PrivateKeyBytes(), packed)
r.Signature = signature[:]
// check that signature is correct by packing again
_, err = r.Pack(ownerAccount)
if nil != err {
return nil, err
}
return &r, nil
}
func makeTransferOneSignature(testnet bool, link merkle.Digest, owner *configuration.Private, newOwner *account.Account) ([]byte, transactionrecord.BitmarkTransfer, error) {
r := transactionrecord.BitmarkTransferCountersigned{
Link: link,
Owner: newOwner,
Signature: nil,
Countersignature: nil,
}
ownerAccount := owner.PrivateKey.Account()
// pack without signature
packed, err := r.Pack(ownerAccount)
if nil == err {
return nil, nil, fault.MakeTransferFailed
} else if fault.InvalidSignature != err {
return nil, nil, err
}
// attach signature
signature := ed25519.Sign(owner.PrivateKey.PrivateKeyBytes(), packed)
r.Signature = signature[:]
// include first signature by packing again
packed, err = r.Pack(ownerAccount)
if nil == err {
return nil, nil, fault.MakeTransferFailed
} else if fault.InvalidSignature != err {
return nil, nil, err
}
return packed, &r, nil
}