Kaiy Belist
39759db7c2
- Bridge Node Support: Added functionality to manage mail (send/receive) on remote nodes via a bridge node. Full transparent management requires a private key on the bridge, while the remote node can operate with only a public key. - End-to-End Encryption (E2EE): Integrated E2EE using age. Encryption and decryption occur strictly at the bridge level; node administrators cannot access message content. - New Addressing Schema: Transitioned from nodepub@yggmail to userpub@nodepub. - Key Adaptation: Implemented ed25519 to x25519 coordinate adaptation, allowing signing keys to be used for encryption. Changed - Address Encoding: Switched from hex16 to base32 for the address space. - Memory Optimization: Replaced direct memory allocations with streaming for mail processing to reduce RAM overhead. - Code Refactoring: Performed decomposition of the original inherited codebase to improve maintainability. Fixed - Mail Updates: Fixed the mail retrieval mechanism to ensure near-instant updates for incoming messages. Changes to be committed: modified: .gitignore modified: README.md modified: cmd/yggmail/main.go modified: go.mod modified: go.sum new file: internal/account/manager.go new file: internal/account/session.go modified: internal/imapserver/backend.go modified: internal/imapserver/imap.go modified: internal/imapserver/mailbox.go modified: internal/imapserver/notify.go modified: internal/imapserver/user.go new file: internal/notify/notify.go new file: internal/notify/remote/remote.go new file: internal/remote/client.go new file: internal/remote/handlers.go new file: internal/remote/io.go new file: internal/remote/server.go new file: internal/remote/sign.go new file: internal/remote/types/request.pb.go new file: internal/remote/types/request.proto new file: internal/remote/types/response.pb.go new file: internal/remote/types/response.proto new file: internal/shell/shell.go modified: internal/smtpsender/sender.go modified: internal/smtpserver/backend.go modified: internal/smtpserver/session_local.go modified: internal/smtpserver/session_remote.go modified: internal/smtpserver/smtp.go new file: internal/storage/filestore/filestore.go new file: internal/storage/local/storage.go new file: internal/storage/remote/mail.go new file: internal/storage/remote/mailbox.go new file: internal/storage/remote/queue.go new file: internal/storage/remote/storage.go new file: internal/storage/remote/watch.go modified: internal/storage/sqlite3/sqlite3.go new file: internal/storage/sqlite3/table_accounts.go modified: internal/storage/sqlite3/table_mailboxes.go modified: internal/storage/sqlite3/table_mails.go modified: internal/storage/sqlite3/table_queue.go modified: internal/storage/storage.go modified: internal/storage/types/types.go modified: internal/utils/address.go new file: internal/utils/age/age.go new file: internal/utils/age/bech32/bech32.go new file: internal/utils/crypt.go new file: internal/utils/e2ee/crypt.go new file: internal/utils/e2ee/e2ee_test.go new file: internal/utils/e2ee/msg.go new file: internal/utils/x25519.go modified: internal/welcome/welcome.go
84 lines
2.2 KiB
Go
84 lines
2.2 KiB
Go
/*
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* Copyright (c) 2026 Kaiy Ragur
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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package account
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import (
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"crypto/ed25519"
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"fmt"
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"io"
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"github.com/neilalexander/yggmail/internal/storage/types"
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"github.com/neilalexander/yggmail/internal/utils"
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"github.com/neilalexander/yggmail/internal/utils/age"
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"golang.org/x/crypto/bcrypt"
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)
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// Incapsulate all logic with cryptography by account
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type Session struct {
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account *types.Account
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privKey ed25519.PrivateKey
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}
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// Constructor
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func NewSession(a *types.Account, p ed25519.PrivateKey) *Session {
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return &Session{
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account: a,
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privKey: p,
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}
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}
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func (s *Session) Username() string { return s.account.PublicKey }
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func (s *Session) Publickey() ed25519.PublicKey { return s.privKey.Public().(ed25519.PublicKey) }
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func (s *Session) GetAccount() *types.Account { return s.account }
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func (s *Session) Sign(data []byte) (sign []byte, err error) {
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sign = ed25519.Sign(s.privKey, data)
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return sign, nil
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}
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func (s *Session) Decrypt(r io.Reader) (io.Reader, error) {
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i, err := age.Identity(s.privKey)
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if err != nil {
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return nil, err
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}
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return age.DecryptArmor(r, i)
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}
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func (s *Session) Encrypt(w io.Writer, rcpt ...ed25519.PublicKey) (io.WriteCloser, error) {
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r, err := age.Recipient(rcpt...)
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if err != nil {
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return nil, err
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}
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return age.EncryptArmor(w, r...)
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}
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func (s *Session) ChangePassword(p SecretProvider) (enSk string, passwdHash []byte, err error) {
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sk := s.privKey
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if len(sk) != ed25519.PrivateKeySize {
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return "", nil, fmt.Errorf("session.ChangePassword:: PrivateKeySize != 32")
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}
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password, err := p()
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if err != nil {
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return "", nil, fmt.Errorf("session.ChangePassword: SecretProvider: %w", err)
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}
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enSk, err = utils.AESEncrypt(utils.EncodeString(sk), password)
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if err != nil {
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return "", nil, fmt.Errorf("session.ChangePassword: encrypt privateKey: %w", err)
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}
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passwdhash, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
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if err != nil {
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return "", nil, fmt.Errorf("session.ChangePassword:: hash password: %w", err)
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}
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// nulling sec-data
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password = ""
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return enSk, passwdhash, nil
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}
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