71 lines
1.3 KiB
Go
71 lines
1.3 KiB
Go
package wallet
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import (
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"encoding/json"
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"io/ioutil"
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"os"
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"path/filepath"
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)
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type KeycardPairings struct {
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pairingsFile string
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}
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type KeycardPairing struct {
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Key string `json:"key"`
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Index int `json:"index"`
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}
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func NewKeycardPairings() *KeycardPairings {
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return &KeycardPairings{}
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}
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func (kp *KeycardPairings) SetKeycardPairingsFile(filePath string) {
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kp.pairingsFile = filePath
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}
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func (kp *KeycardPairings) GetPairingsJSONFileContent() ([]byte, error) {
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_, err := os.Stat(kp.pairingsFile)
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if os.IsNotExist(err) {
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return []byte{}, nil
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}
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return ioutil.ReadFile(kp.pairingsFile)
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}
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func (kp *KeycardPairings) SetPairingsJSONFileContent(content []byte) error {
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if len(content) == 0 {
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// Nothing to write
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return nil
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}
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_, err := os.Stat(kp.pairingsFile)
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if os.IsNotExist(err) {
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dir, _ := filepath.Split(kp.pairingsFile)
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err = os.MkdirAll(dir, 0700)
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if err != nil {
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return err
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}
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}
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return ioutil.WriteFile(kp.pairingsFile, content, 0600)
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}
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func (kp *KeycardPairings) GetPairings() (map[string]KeycardPairing, error) {
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content, err := kp.GetPairingsJSONFileContent()
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if err != nil {
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return nil, err
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}
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if len(content) == 0 {
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return nil, os.ErrNotExist
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}
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pairings := make(map[string]KeycardPairing)
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err = json.Unmarshal(content, &pairings)
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if err != nil {
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return nil, err
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}
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return pairings, nil
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}
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