package mboxer import ( "bytes" "fmt" "io" "git.sr.ht/~rjarry/aerc/lib/rfc822" "git.sr.ht/~rjarry/aerc/models" ) type mailboxContainer struct { mailboxes map[string]*container } func (md *mailboxContainer) Names() []string { files := make([]string, 0) for file := range md.mailboxes { files = append(files, file) } return files } func (md *mailboxContainer) Mailbox(f string) (*container, bool) { mb, ok := md.mailboxes[f] return mb, ok } func (md *mailboxContainer) Create(file string) *container { md.mailboxes[file] = &container{filename: file} return md.mailboxes[file] } func (md *mailboxContainer) Remove(file string) error { delete(md.mailboxes, file) return nil } func (md *mailboxContainer) DirectoryInfo(file string) *models.DirectoryInfo { var exists int if md, ok := md.Mailbox(file); ok { exists = len(md.Uids()) } return &models.DirectoryInfo{ Name: file, Exists: exists, Recent: 0, Unseen: 0, } } func (md *mailboxContainer) Copy(dest, src string, uids []uint32) error { srcmbox, ok := md.Mailbox(src) if !ok { return fmt.Errorf("source %s not found", src) } destmbox, ok := md.Mailbox(dest) if !ok { return fmt.Errorf("destination %s not found", dest) } for _, uidSrc := range srcmbox.Uids() { found := false for _, uid := range uids { if uid == uidSrc { found = true break } } if found { msg, err := srcmbox.Message(uidSrc) if err != nil { return fmt.Errorf("could not get message with uid %d from folder %s", uidSrc, src) } r, err := msg.NewReader() if err != nil { return fmt.Errorf("could not get reader for message with uid %d", uidSrc) } flags, err := msg.ModelFlags() if err != nil { return fmt.Errorf("could not get flags for message with uid %d", uidSrc) } err = destmbox.Append(r, flags) if err != nil { return fmt.Errorf("could not append data to mbox: %w", err) } } } md.mailboxes[dest] = destmbox return nil } type container struct { filename string messages []rfc822.RawMessage } func (f *container) Uids() []uint32 { uids := make([]uint32, len(f.messages)) for i, m := range f.messages { uids[i] = m.UID() } return uids } func (f *container) Message(uid uint32) (rfc822.RawMessage, error) { for _, m := range f.messages { if uid == m.UID() { return m, nil } } return &message{}, fmt.Errorf("uid [%d] not found", uid) } func (f *container) Delete(uids []uint32) (deleted []uint32) { newMessages := make([]rfc822.RawMessage, 0) for _, m := range f.messages { del := false for _, uid := range uids { if m.UID() == uid { del = true break } } if del { deleted = append(deleted, m.UID()) } else { newMessages = append(newMessages, m) } } f.messages = newMessages return } func (f *container) newUid() (next uint32) { for _, m := range f.messages { if uid := m.UID(); uid > next { next = uid } } next++ return } func (f *container) Append(r io.Reader, flags models.Flags) error { data, err := io.ReadAll(r) if err != nil { return err } f.messages = append(f.messages, &message{ uid: f.newUid(), flags: flags, content: data, }) return nil } // message implements the lib.RawMessage interface type message struct { uid uint32 flags models.Flags content []byte } func (m *message) NewReader() (io.ReadCloser, error) { return io.NopCloser(bytes.NewReader(m.content)), nil } func (m *message) ModelFlags() (models.Flags, error) { return m.flags, nil } func (m *message) Labels() ([]string, error) { return nil, nil } func (m *message) UID() uint32 { return m.uid } func (m *message) SetFlag(flag models.Flags, state bool) error { if state { m.flags |= flag } else { m.flags &^= flag } return nil }