package msg import ( "bufio" "errors" "fmt" "io" gomail "net/mail" "regexp" "strings" "git.sr.ht/~sircmpwn/getopt" "github.com/emersion/go-imap" "github.com/emersion/go-message" _ "github.com/emersion/go-message/charset" "github.com/emersion/go-message/mail" "git.sr.ht/~sircmpwn/aerc/widgets" ) func init() { register("reply", Reply) register("forward", Reply) } var ( atom *regexp.Regexp = regexp.MustCompile("^[a-z0-9!#$%7'*+-/=?^_`{}|~ ]+$") ) func formatAddress(addr *imap.Address) string { if addr.PersonalName != "" { if atom.MatchString(addr.PersonalName) { return fmt.Sprintf("%s <%s@%s>", addr.PersonalName, addr.MailboxName, addr.HostName) } else { return fmt.Sprintf("\"%s\" <%s@%s>", strings.ReplaceAll(addr.PersonalName, "\"", "'"), addr.MailboxName, addr.HostName) } } else { return fmt.Sprintf("<%s@%s>", addr.MailboxName, addr.HostName) } } func Reply(aerc *widgets.Aerc, args []string) error { opts, optind, err := getopt.Getopts(args[1:], "aq") if err != nil { return err } if optind != len(args)-1 { return errors.New("Usage: reply [-aq]") } var ( quote bool replyAll bool ) for _, opt := range opts { switch opt.Option { case 'a': replyAll = true case 'q': quote = true } } widget := aerc.SelectedTab().(widgets.ProvidesMessage) acct := widget.SelectedAccount() if acct == nil { return errors.New("No account selected") } conf := acct.AccountConfig() us, _ := gomail.ParseAddress(conf.From) store := widget.Store() msg := widget.SelectedMessage() acct.Logger().Println("Replying to email " + msg.Envelope.MessageId) var ( to []string cc []string toList []*imap.Address ) if args[0] == "reply" { if len(msg.Envelope.ReplyTo) != 0 { toList = msg.Envelope.ReplyTo } else { toList = msg.Envelope.From } for _, addr := range toList { if addr.PersonalName != "" { to = append(to, fmt.Sprintf("%s <%s@%s>", addr.PersonalName, addr.MailboxName, addr.HostName)) } else { to = append(to, fmt.Sprintf("<%s@%s>", addr.MailboxName, addr.HostName)) } } if replyAll { for _, addr := range msg.Envelope.Cc { cc = append(cc, formatAddress(addr)) } for _, addr := range msg.Envelope.To { address := fmt.Sprintf("%s@%s", addr.MailboxName, addr.HostName) if address == us.Address { continue } to = append(to, formatAddress(addr)) } } } var subject string if args[0] == "forward" { subject = "Fwd: " + msg.Envelope.Subject } else { if !strings.HasPrefix(msg.Envelope.Subject, "Re: ") { subject = "Re: " + msg.Envelope.Subject } else { subject = msg.Envelope.Subject } } composer := widgets.NewComposer( aerc.Config(), acct.AccountConfig(), acct.Worker()). Defaults(map[string]string{ "To": strings.Join(to, ", "), "Cc": strings.Join(cc, ", "), "Subject": subject, "In-Reply-To": msg.Envelope.MessageId, }) if args[0] == "reply" { composer.FocusTerminal() } addTab := func() { tab := aerc.NewTab(composer, subject) composer.OnSubjectChange(func(subject string) { if subject == "" { tab.Name = "New email" } else { tab.Name = subject } tab.Content.Invalidate() }) } if args[0] == "forward" { // TODO: something more intelligent than fetching the 1st part // TODO: add attachments! store.FetchBodyPart(msg.Uid, []int{1}, func(reader io.Reader) { header := message.Header{} header.SetText( "Content-Transfer-Encoding", msg.BodyStructure.Encoding) header.SetContentType( msg.BodyStructure.MIMEType, msg.BodyStructure.Params) header.SetText("Content-Description", msg.BodyStructure.Description) entity, err := message.New(header, reader) if err != nil { // TODO: Do something with the error addTab() return } mreader := mail.NewReader(entity) part, err := mreader.NextPart() if err != nil { // TODO: Do something with the error addTab() return } pipeout, pipein := io.Pipe() scanner := bufio.NewScanner(part.Body) go composer.SetContents(pipeout) // TODO: Let user customize the date format used here io.WriteString(pipein, fmt.Sprintf("Forwarded message from %s on %s:\n\n", msg.Envelope.From[0].PersonalName, msg.Envelope.Date.Format("Mon Jan 2, 2006 at 3:04 PM"))) for scanner.Scan() { io.WriteString(pipein, fmt.Sprintf("%s\n", scanner.Text())) } pipein.Close() pipeout.Close() addTab() }) } else { if quote { var ( path []int part *imap.BodyStructure ) if len(msg.BodyStructure.Parts) != 0 { part, path = findPlaintext(msg.BodyStructure, path) } if part == nil { part = msg.BodyStructure path = []int{1} } store.FetchBodyPart(msg.Uid, path, func(reader io.Reader) { header := message.Header{} header.SetText( "Content-Transfer-Encoding", part.Encoding) header.SetContentType(part.MIMEType, part.Params) header.SetText("Content-Description", part.Description) entity, err := message.New(header, reader) if err != nil { // TODO: Do something with the error addTab() return } mreader := mail.NewReader(entity) part, err := mreader.NextPart() if err != nil { // TODO: Do something with the error addTab() return } pipeout, pipein := io.Pipe() scanner := bufio.NewScanner(part.Body) go composer.SetContents(pipeout) // TODO: Let user customize the date format used here io.WriteString(pipein, fmt.Sprintf("On %s %s wrote:\n", msg.Envelope.Date.Format("Mon Jan 2, 2006 at 3:04 PM"), msg.Envelope.From[0].PersonalName)) for scanner.Scan() { io.WriteString(pipein, fmt.Sprintf("> %s\n", scanner.Text())) } pipein.Close() pipeout.Close() addTab() }) } else { addTab() } } return nil } func findPlaintext(bs *imap.BodyStructure, path []int) (*imap.BodyStructure, []int) { for i, part := range bs.Parts { cur := append(path, i+1) if part.MIMEType == "text" && part.MIMESubType == "plain" { return part, cur } if part.MIMEType == "multipart" { if part, path := findPlaintext(part, cur); path != nil { return part, path } } } return nil, nil }