mirror of
https://github.com/ProtonMail/proton-bridge.git
synced 2025-12-17 23:56:56 +00:00
87 lines
2.2 KiB
Go
87 lines
2.2 KiB
Go
// Copyright (c) 2022 Proton AG
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//
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// This file is part of Proton Mail Bridge.
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//
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// Proton Mail Bridge is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Proton Mail Bridge is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
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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 {
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return &smtpBackend{
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users: make(map[string]*user.User),
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}
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}
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func (backend *smtpBackend) Login(_ *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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