89 lines
1.4 KiB
Go
89 lines
1.4 KiB
Go
package wallet
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import (
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"bytes"
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"crypto/elliptic"
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"encoding/gob"
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"log"
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"os"
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)
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const walletFile = "./tmp/wallets.data"
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type Wallets struct {
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Wallets map[string]*Wallet
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}
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func CreateWallets() (*Wallets, error) {
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wallets := Wallets{}
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wallets.Wallets = make(map[string]*Wallet)
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err := wallets.LoadFile()
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return &wallets, err
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}
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func (ws *Wallets) AddWallet() string {
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wallet := MakeWallet()
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address := string(wallet.Address())
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ws.Wallets[address] = wallet
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return address
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}
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func (ws *Wallets) GetAllAddresses() []string {
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var addresses []string
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for address := range ws.Wallets {
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addresses = append(addresses, address)
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}
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return addresses
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}
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func (ws Wallets) GetWallet(address string) Wallet {
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return *ws.Wallets[address]
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}
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func (ws *Wallets) LoadFile() error {
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if _, err := os.Stat(walletFile); os.IsNotExist(err) {
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return err
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}
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var wallets Wallets
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fileContent, err := os.ReadFile(walletFile)
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if err != nil {
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return err
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}
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gob.Register(elliptic.P256())
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decoder := gob.NewDecoder(bytes.NewReader(fileContent))
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err = decoder.Decode(&wallets)
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if err != nil {
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return err
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}
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ws.Wallets = wallets.Wallets
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return nil
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}
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func (ws *Wallets) SaveFile() {
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var content bytes.Buffer
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gob.Register(elliptic.P256())
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encoder := gob.NewEncoder(&content)
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err := encoder.Encode(ws)
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if err != nil {
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log.Panic(err)
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}
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err = os.WriteFile(walletFile, content.Bytes(), 0644)
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if err != nil {
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log.Panic(err)
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}
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}
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