init: pristine aerc 0.20.0 source

commands/eml.go

@@ -0,0 +1,93 @@
+package commands
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"os"
+
+	"git.sr.ht/~rjarry/aerc/app"
+	"git.sr.ht/~rjarry/aerc/lib"
+	"git.sr.ht/~rjarry/aerc/lib/xdg"
+)
+
+type Eml struct {
+	Path string `opt:"path" required:"false" complete:"CompletePath" desc:"EML file path."`
+}
+
+func init() {
+	Register(Eml{})
+}
+
+func (Eml) Description() string {
+	return "Open an eml file into the message viewer."
+}
+
+func (Eml) Context() CommandContext {
+	return GLOBAL
+}
+
+func (Eml) Aliases() []string {
+	return []string{"eml", "preview"}
+}
+
+func (*Eml) CompletePath(arg string) []string {
+	return CompletePath(arg, false)
+}
+
+func (e Eml) Execute(args []string) error {
+	acct := app.SelectedAccount()
+	if acct == nil {
+		return fmt.Errorf("no account selected")
+	}
+
+	showEml := func(r io.Reader) {
+		data, err := io.ReadAll(r)
+		if err != nil {
+			app.PushError(err.Error())
+			return
+		}
+		lib.NewEmlMessageView(data, app.CryptoProvider(), app.DecryptKeys,
+			func(view lib.MessageView, err error) {
+				if err != nil {
+					app.PushError(err.Error())
+					return
+				}
+				msgView, err := app.NewMessageViewer(acct, view)
+				if err != nil {
+					app.PushError(err.Error())
+					return
+				}
+				app.NewTab(msgView,
+					view.MessageInfo().Envelope.Subject)
+			})
+	}
+
+	if e.Path == "" {
+		switch tab := app.SelectedTabContent().(type) {
+		case *app.MessageViewer:
+			part := tab.SelectedMessagePart()
+			tab.MessageView().FetchBodyPart(part.Index, showEml)
+		case *app.Composer:
+			var buf bytes.Buffer
+			h, err := tab.PrepareHeader()
+			if err != nil {
+				return err
+			}
+			if err := tab.WriteMessage(h, &buf); err != nil {
+				return err
+			}
+			showEml(&buf)
+		default:
+			return fmt.Errorf("unsupported operation")
+		}
+	} else {
+		f, err := os.Open(xdg.ExpandHome(e.Path))
+		if err != nil {
+			return err
+		}
+		defer f.Close()
+		showEml(f)
+	}
+	return nil
+}