1 package mailmux
2 
3 import (
4 	"errors"
5 )
6 
7 // User represents a mailmux user.
8 type User struct {
9 	// The name should be a valid email address.
10 	name     string
11 	password Password
12 }
13 
14 type Password []byte
15 
16 // A UserStore provides storage and authentication of users.
17 type UserStore interface {
18 	// Change creates or updates the named user with the new password.
19 	Change(name string, new Password) error
20 	// Lookup returns the User with name.
21 	// The error should be ErrUnknownUser if the user is not found.
22 	Lookup(name string) (User, error)
23 	// Delete removes the user from the store.
24 	Delete(name string) error
25 	// Authenticate authenticates the user identified by username with pw.
26 	// error is non-nil if the password is incorrect or on any other error.
27 	Authenticate(username string, pw Password) error
28 }
29 
30 type ticket []byte
31 
32 var testTicket = []byte(`TEST NOT REAL`)
33 
34 var (
35 	ErrUserExist   = errors.New("user already exists")
36 	ErrUnknownUser = errors.New("unknown user")
37 )
38 
39 // verified checks whether ownership of username's address has
40 // been confirmed.
41 // func (store *astore) verified(username string) (bool, error) {
42 // 	_, err := store.Lookup(username)
43 // 	if errors.Is(err, ErrUnknownUser) {
44 // 		return false, err
45 // 	}
46 //
47 // 	_, err = os.Stat(path.Join(store.confirmDir, username))
48 // 	if err == nil {
49 // 		return false, nil
50 // 	}
51 // 	if errors.Is(err, fs.ErrNotExist) {
52 // 		return true, nil
53 // 	}
54 // 	return false, fmt.Errorf("check confirm file: %w", err)
55 // }
56 
57 // verify attempts to verify the username using the given token.
58 // func (store *astore) verify(username string, tok token) error {
59 // 	f, err := os.Open(path.Join(store.confirmDir, username))
60 // 	if errors.Is(err, fs.ErrNotExist) {
61 // 		return ErrUnknownUser
62 // 	} else if err != nil {
63 // 		return err
64 // 	}
65 // 	defer f.Close()
66 // 	b, err := io.ReadAll(f)
67 // 	if err != nil {
68 // 		return err
69 // 	}
70 // 	if bytes.Equal(b, []byte(tok)) {
71 // 		return os.Remove(path.Join(store.confirmDir, username))
72 // 	}
73 // 	return errors.New("mismatched token")
74 // }
75 
76 func SendConfirmationMail(from, to string, tik ticket) error {
77 	return nil
78 	// From: $from
79 	// To: $to
80 	// Subject: Confirm address ownership
81 	//
82 	// Thanks for signing up to mailmux.net!
83 	// Confirm ownership of $address by accessing the following link:
84 	// https://mailmux.net/confirm?username=test@example.com&token=abcd12345
85 	// Alternatively, go to https://mailmux.net/confirm
86 	// enter your email address and your token:
87 	//	abcd12345
88 	//
89 	// If you have not signed up for mailmux.net, please
90 	// let us know by forwarding this mail to abuse@mailmux.net.
91 	// Thank you for helping us fight spam!
92 }