The webmail creates app passwords (shown once, stored hashed, with scopes) but the protocol servers only compared a login against mailboxes.password_hash, so an app password was always refused with 535 / authentication failed. They exist because mail clients cannot do a second factor. - port.MailboxAuth carries the mailbox's app passwords (newest 20) with their scopes; the Postgres repository loads them and stamps last_used_at on use - verifyCredential accepts the mailbox password or an app password that holds the scope of the protocol; SMTP, IMAP and POP3 use it. ManageSieve keeps the mailbox password only, as no default scope covers it - a malformed app password hash is skipped instead of failing the login; a malformed mailbox hash still surfaces as the server-side error it was Tests: unit cases for scopes and malformed hashes, the three entry points, repository tests against Postgres, and an end-to-end test on the real submission server that fails with 535 without the fix and passes with it. Full `go test ./...` with TEST_DATABASE_URL, go vet and lang-lint are clean.
110 lines
3.7 KiB
Go
110 lines
3.7 KiB
Go
package usecase
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import (
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"context"
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"errors"
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"github.com/google/uuid"
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"lambdamail/protocols/internal/application/port"
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)
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// ErrAuthFailed is returned by Login for any credential problem - unknown
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// address, wrong password, or (once AuthRepository filters it) an inactive
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// mailbox/domain. Deliberately the same error in every case: distinguishing
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// them would let a client enumerate valid addresses (PLAN.md section 14.6).
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var ErrAuthFailed = errors.New("imap session: authentication failed")
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// ErrNoSuchFolder is returned by SelectFolder when the named folder doesn't exist.
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var ErrNoSuchFolder = errors.New("imap session: no such folder")
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// ImapSessionUseCase implements the read/auth half of PLAN.md section 3's
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// HandleImapCommandUseCase (this sub-project's scope: LOGIN, LIST, SELECT,
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// FETCH, STORE; SEARCH/EXPUNGE/IDLE/MOVE land in later sub-projects).
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type ImapSessionUseCase struct {
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auth port.AuthRepository
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folders port.ImapFolderRepository
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messages port.MessageQueryRepository
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flags port.FlagRepository
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blobs port.BlobReader
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expunger port.ExpungeRepository
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copier port.CopyRepository
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trackerManager *MailboxTrackerManager
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}
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func NewImapSessionUseCase(auth port.AuthRepository, folders port.ImapFolderRepository, messages port.MessageQueryRepository, flags port.FlagRepository, blobs port.BlobReader, expunger port.ExpungeRepository, copier port.CopyRepository) *ImapSessionUseCase {
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return &ImapSessionUseCase{
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auth: auth,
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folders: folders,
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messages: messages,
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flags: flags,
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blobs: blobs,
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expunger: expunger,
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copier: copier,
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trackerManager: NewMailboxTrackerManager(),
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}
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}
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func (uc *ImapSessionUseCase) SetTrackerManager(tm *MailboxTrackerManager) {
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if tm != nil {
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uc.trackerManager = tm
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}
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}
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func (uc *ImapSessionUseCase) GetTrackerManager() *MailboxTrackerManager {
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return uc.trackerManager
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}
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func (uc *ImapSessionUseCase) Login(ctx context.Context, address, password string) (string, error) {
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rec, err := uc.auth.FindByAddress(ctx, address)
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if err != nil {
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return "", err
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}
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if rec == nil {
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return "", ErrAuthFailed
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}
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match, err := verifyCredential(ctx, uc.auth, rec, password, ScopeIMAP)
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if err != nil {
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return "", err
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}
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if !match {
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return "", ErrAuthFailed
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}
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return rec.ID.String(), nil
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}
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func (uc *ImapSessionUseCase) ListFolders(ctx context.Context, mailboxID string) ([]port.ImapFolderRecord, error) {
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return uc.folders.ListFolders(ctx, mailboxID)
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}
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func (uc *ImapSessionUseCase) SelectFolder(ctx context.Context, mailboxID, name string) (*port.ImapFolderRecord, error) {
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rec, err := uc.folders.FindByName(ctx, mailboxID, name)
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if err != nil {
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return nil, err
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}
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if rec == nil {
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return nil, ErrNoSuchFolder
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}
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return rec, nil
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}
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func (uc *ImapSessionUseCase) FetchMessages(ctx context.Context, folderID string) ([]port.MessageRecord, error) {
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return uc.messages.ListMessages(ctx, folderID)
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}
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func (uc *ImapSessionUseCase) ReadBlob(ctx context.Context, blobID uuid.UUID) ([]byte, error) {
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return uc.blobs.ReadByID(ctx, blobID)
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}
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func (uc *ImapSessionUseCase) SetFlags(ctx context.Context, folderID string, uid uint32, op port.FlagOp, flags []string, unchangedSince uint64) (bool, error) {
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return uc.flags.SetFlags(ctx, folderID, uid, op, flags, unchangedSince)
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}
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func (uc *ImapSessionUseCase) Expunge(ctx context.Context, folderID string, uids []uint32) error {
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return uc.expunger.Expunge(ctx, folderID, uids)
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}
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func (uc *ImapSessionUseCase) CopyMessages(ctx context.Context, sourceFolderID string, uids []uint32, destFolderID string) ([]port.CopiedMessage, error) {
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return uc.copier.CopyMessages(ctx, sourceFolderID, uids, destFolderID)
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}
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