forked from hyperledger-archives/burrow
-
Notifications
You must be signed in to change notification settings - Fork 0
/
account.go
144 lines (122 loc) · 3.88 KB
/
account.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
// Copyright 2017 Monax Industries Limited
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package acm
import (
"bytes"
"fmt"
"github.com/hyperledger/burrow/execution/errors"
amino "github.com/tendermint/go-amino"
"github.com/hyperledger/burrow/binary"
"github.com/hyperledger/burrow/crypto"
"github.com/hyperledger/burrow/event/query"
"github.com/hyperledger/burrow/permission"
)
var GlobalPermissionsAddress = crypto.Address(binary.Zero160)
func NewAccount(pubKey crypto.PublicKey) *Account {
return &Account{
Address: pubKey.GetAddress(),
PublicKey: pubKey,
}
}
func NewAccountFromSecret(secret string) *Account {
return NewAccount(crypto.PrivateKeyFromSecret(secret, crypto.CurveTypeEd25519).GetPublicKey())
}
func (acc *Account) GetAddress() crypto.Address {
return acc.Address
}
func (acc *Account) AddToBalance(amount uint64) error {
if binary.IsUint64SumOverflow(acc.Balance, amount) {
return errors.ErrorCodef(errors.ErrorCodeIntegerOverflow,
"uint64 overflow: attempt to add %v to the balance of %s", amount, acc.Address)
}
acc.Balance += amount
return nil
}
func (acc *Account) SubtractFromBalance(amount uint64) error {
if amount > acc.Balance {
return errors.ErrorCodef(errors.ErrorCodeInsufficientBalance,
"insufficient funds: attempt to subtract %v from the balance of %s", amount, acc.Address)
}
acc.Balance -= amount
return nil
}
///---- Serialisation methods
var cdc = amino.NewCodec()
func (acc *Account) Encode() ([]byte, error) {
return cdc.MarshalBinaryBare(acc)
}
func Decode(accBytes []byte) (*Account, error) {
ca := new(Account)
err := cdc.UnmarshalBinaryBare(accBytes, ca)
if err != nil {
return nil, err
}
return ca, nil
}
// Conversions
//
// Using the naming convention is this package of 'As<Type>' being
// a conversion from Account to <Type> and 'From<Type>' being conversion
// from <Type> to Account. Conversions are done by copying
// Creates an otherwise zeroed Account from an Addressable and returns it as MutableAccount
func FromAddressable(addressable crypto.Addressable) *Account {
return &Account{
Address: addressable.GetAddress(),
PublicKey: addressable.GetPublicKey(),
// Since nil slices and maps compare differently to empty ones
Code: Bytecode{},
Permissions: permission.AccountPermissions{
Roles: []string{},
},
}
}
// Copies all mutable parts of account
func (acc *Account) Copy() *Account {
if acc == nil {
return nil
}
accCopy := *acc
accCopy.Permissions.Roles = make([]string, len(acc.Permissions.Roles))
copy(accCopy.Permissions.Roles, acc.Permissions.Roles)
return &accCopy
}
func (acc *Account) Equal(accOther *Account) bool {
accEnc, err := acc.Encode()
if err != nil {
return false
}
accOtherEnc, err := acc.Encode()
if err != nil {
return false
}
return bytes.Equal(accEnc, accOtherEnc)
}
func (acc Account) String() string {
return fmt.Sprintf("Account{Address: %s; Sequence: %v; PublicKey: %v Balance: %v; CodeLength: %v; Permissions: %v}",
acc.Address, acc.Sequence, acc.PublicKey, acc.Balance, len(acc.Code), acc.Permissions)
}
func (acc *Account) Tagged() query.Tagged {
return &TaggedAccount{
Account: acc,
Tagged: query.MergeTags(query.MustReflectTags(acc, "Address", "Balance", "Sequence", "Code"),
query.TagMap{
"Permissions": acc.Permissions.Base.ResultantPerms(),
"Roles": acc.Permissions.Roles,
}),
}
}
type TaggedAccount struct {
*Account
query.Tagged
}