forked from Silverfish/proton-bridge
70 lines
1.5 KiB
Go
70 lines
1.5 KiB
Go
package bridge
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import (
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"sync"
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"github.com/ProtonMail/proton-bridge/v2/internal/user"
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"github.com/emersion/go-smtp"
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)
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type smtpBackend struct {
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users map[string]*user.User
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usersLock sync.RWMutex
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}
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func newSMTPBackend() (*smtpBackend, error) {
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return &smtpBackend{
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users: make(map[string]*user.User),
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}, nil
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}
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func (backend *smtpBackend) Login(state *smtp.ConnectionState, email, password string) (smtp.Session, error) {
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backend.usersLock.RLock()
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defer backend.usersLock.RUnlock()
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for _, user := range backend.users {
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session, err := user.NewSMTPSession(email, []byte(password))
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if err != nil {
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continue
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}
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return session, nil
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}
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return nil, ErrNoSuchUser
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}
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func (backend *smtpBackend) AnonymousLogin(state *smtp.ConnectionState) (smtp.Session, error) {
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return nil, ErrNotImplemented
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}
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// addUser adds the given user to the backend.
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// It returns an error if a user with the same ID already exists.
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func (backend *smtpBackend) addUser(newUser *user.User) error {
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backend.usersLock.Lock()
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defer backend.usersLock.Unlock()
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if _, ok := backend.users[newUser.ID()]; ok {
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return ErrUserAlreadyExists
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}
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backend.users[newUser.ID()] = newUser
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return nil
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}
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// removeUser removes the given user from the backend.
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// It returns an error if the user doesn't exist.
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func (backend *smtpBackend) removeUser(user *user.User) error {
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backend.usersLock.Lock()
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defer backend.usersLock.Unlock()
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if _, ok := backend.users[user.ID()]; !ok {
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return ErrNoSuchUser
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}
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delete(backend.users, user.ID())
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return nil
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}
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