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
|
// Copyright (C) 2019-2024 Algorand, Inc.
// This file is part of go-algorand
//
// go-algorand is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// go-algorand is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with go-algorand. If not, see <https://www.gnu.org/licenses/>.
package driver
import (
"fmt"
"github.com/algorand/go-algorand/crypto"
"github.com/algorand/go-algorand/daemon/kmd/config"
"github.com/algorand/go-algorand/daemon/kmd/wallet"
"github.com/algorand/go-algorand/logging"
)
var walletDrivers = map[string]Driver{
sqliteWalletDriverName: &SQLiteWalletDriver{},
ledgerWalletDriverName: &LedgerWalletDriver{},
}
// Driver is the interface that all wallet drivers must expose in order to be
// compatible with kmd. In particular, wallet drivers must be able to
// initialize themselves from a Config, create a wallet with a name, ID,
// and password, and fetch a wallet by ID.
type Driver interface {
InitWithConfig(cfg config.KMDConfig, log logging.Logger) error
ListWalletMetadatas() ([]wallet.Metadata, error)
CreateWallet(name []byte, id []byte, pw []byte, mdk crypto.MasterDerivationKey) error
RenameWallet(newName []byte, id []byte, pw []byte) error
FetchWallet(id []byte) (wallet.Wallet, error)
}
// InitWalletDrivers accepts a KMDConfig and uses it to initialize each driver
func InitWalletDrivers(cfg config.KMDConfig, log logging.Logger) error {
for _, driver := range walletDrivers {
err := driver.InitWithConfig(cfg, log)
if err != nil {
return err
}
}
return nil
}
// FetchWalletDriver accepts a driver name and returns a corresponding instance
// of the appropriate wallet driver, or nil
func FetchWalletDriver(driverName string) (Driver, error) {
d := walletDrivers[driverName]
if d == nil {
return nil, fmt.Errorf("unknown wallet driver")
}
return d, nil
}
// ListWalletMetadatas fetches wallet metadata from all of the drivers
func ListWalletMetadatas() ([]wallet.Metadata, error) {
var metadatas []wallet.Metadata
// Iterate over the wallet drivers
for _, driver := range walletDrivers {
// Fetch all of the WalletMetadatas for each driver
driverMetadatas, err := driver.ListWalletMetadatas()
if err != nil {
return nil, err
}
// Append them to the result
metadatas = append(metadatas, driverMetadatas...)
}
return metadatas, nil
}
// FetchWalletByID iterates over the wallet drivers and returns a wallet with
// the passed ID
func FetchWalletByID(id []byte) (wallet.Wallet, error) {
var matches []wallet.Wallet
// Iterate over the wallet drivers
for _, driver := range walletDrivers {
result, err := driver.FetchWallet(id)
if err != nil && err != errWalletNotFound {
return nil, err
} else if err == nil {
matches = append(matches, result)
}
}
// Ensure there was exactly one match
numMatches := len(matches)
if numMatches == 0 {
return nil, errWalletNotFound
} else if numMatches == 1 {
return matches[0], nil
}
// Otherwise, there's at least one ID conflict
return nil, errIDConflict
}
// ListWalletDriverNames returns a list of names of the wallet drivers that kmd
// is aware of
func ListWalletDriverNames() []string {
var drivers []string
for name := range walletDrivers {
drivers = append(drivers, name)
}
return drivers
}
|
