Aurélie DELHAIE
46f312078d
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124 lines
2.3 KiB
Go
124 lines
2.3 KiB
Go
package credentials
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import (
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"bufio"
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"encoding/json"
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"errors"
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"fmt"
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"os"
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"path/filepath"
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"strings"
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"golang.org/x/term"
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)
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type (
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credential struct {
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Username string `json:"username"`
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Password string `json:"password"`
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}
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credentialsStore struct {
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Store map[string]credential `json:"store"`
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}
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)
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var (
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datastorePath string
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)
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func init() {
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roaming, err := os.UserConfigDir()
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if err != nil {
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panic("failed to get user config path: " + err.Error())
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}
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datastorePath = filepath.Join(roaming, "cloudsave")
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}
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func Read(server string) (string, string, error) {
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var err error
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store, err := load()
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if err == nil {
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if c, ok := store[server]; ok {
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return c.Username, c.Password, nil
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}
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}
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fmt.Print("Enter username: ")
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reader := bufio.NewReader(os.Stdin)
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username, _ := reader.ReadString('\n')
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username = strings.TrimSpace(username)
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fmt.Printf("password for %s: ", username)
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password, err := term.ReadPassword(int(os.Stdin.Fd()))
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if err != nil {
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return "", "", err
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}
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fmt.Println()
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return username, string(password), nil
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}
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func Login(username, password, server string) error {
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store, err := load()
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if err != nil {
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return err
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}
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store[server] = credential{
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Username: username,
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Password: password,
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}
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return save(store)
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}
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func Logout(server string) error {
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store, err := load()
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if err != nil {
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return err
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}
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delete(store, server)
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return save(store)
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}
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func save(store map[string]credential) error {
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c := credentialsStore{
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Store: store,
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}
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f, err := os.OpenFile(filepath.Clean(filepath.Join(datastorePath, "credential.json")), os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0600)
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if err != nil {
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return fmt.Errorf("failed to open datastore: %w", err)
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}
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defer f.Close()
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e := json.NewEncoder(f)
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if err := e.Encode(c); err != nil {
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return fmt.Errorf("failed to encode data: %w", err)
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}
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return nil
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}
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func load() (map[string]credential, error) {
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f, err := os.OpenFile(filepath.Clean(filepath.Join(datastorePath, "credential.json")), os.O_RDONLY, 0)
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if err != nil {
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if errors.Is(err, os.ErrNotExist) {
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return make(map[string]credential), nil
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}
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return nil, fmt.Errorf("failed to open datastore: %w", err)
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}
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defer f.Close()
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var c credentialsStore
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d := json.NewDecoder(f)
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if err := d.Decode(&c); err != nil {
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return nil, fmt.Errorf("failed to decode data: %w", err)
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}
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return c.Store, nil
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}
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