add !pm stripify option

bot/command.go

@@ -125,6 +125,15 @@ func (b *Bot) initCommands() commandList {
 			sanitizer: utils.SanitizeBoolString,
 			allowed:   b.allowOwner,
 		},
+		{
+			key: config.RoomStripify,
+			description: fmt.Sprintf(
+				"Get or set `%s` of the room (`true` - strip incoming email reply quotes and signatures; `false` - send incoming email as-is)",
+				config.RoomStripify,
+			),
+			sanitizer: utils.SanitizeBoolString,
+			allowed:   b.allowOwner,
+		},
 		{
 			key: config.RoomNoSend,
 			description: fmt.Sprintf(

bot/config/room.go

@@ -23,6 +23,7 @@ const (
 	RoomAutoreply = "autoreply"
 
 	RoomThreadify   = "threadify"
+	RoomStripify    = "stripify"
 	RoomNoCC        = "nocc"
 	RoomNoFiles     = "nofiles"
 	RoomNoHTML      = "nohtml"
@@ -84,6 +85,10 @@ func (s Room) Threadify() bool {
 	return utils.Bool(s.Get(RoomThreadify))
 }
 
+func (s Room) Stripify() bool {
+	return utils.Bool(s.Get(RoomStripify))
+}
+
 func (s Room) NoSend() bool {
 	return utils.Bool(s.Get(RoomNoSend))
 }
@@ -198,6 +203,7 @@ func (s Room) ContentOptions() *email.ContentOptions {
 		Recipient: !s.NoRecipient(),
 		Subject:   !s.NoSubject(),
 		Threads:   !s.NoThreads(),
+		Stripify:  s.Stripify(),
 		Threadify: s.Threadify(),
 
 		ToKey:         "cc.etke.postmoogle.to",

bot/email.go

@@ -146,6 +146,18 @@ func (b *Bot) IncomingEmail(ctx context.Context, eml *email.Email) error {
 			b.setThreadID(ctx, roomID, eml.MessageID, threadID)
 		}
 	}
+
+	// if automatic stripping is enabled, there is a chance something important may be stripped out
+	// to prevent that, we use a hacky way to generate content without stripping and save it as a file fist
+	if cfg.Stripify() && !cfg.Threadify() {
+		contentOpts := cfg.ContentOptions()
+		contentOpts.Stripify = false
+		content := eml.Content(threadID, contentOpts, b.psdc)
+		eml.Files = append(eml.Files, //nolint:forcetypeassert // that's ok
+			utils.NewFile("original.md", []byte(content.Parsed.(*event.MessageEventContent).Body)),
+		)
+	}
+
 	content := eml.Content(threadID, cfg.ContentOptions(), b.psdc)
 	eventID, serr := b.lp.Send(ctx, roomID, content)
 	if serr != nil {
@@ -164,6 +176,16 @@ func (b *Bot) IncomingEmail(ctx context.Context, eml *email.Email) error {
 	b.setLastEventID(ctx, roomID, threadID, eventID)
 
 	if newThread && cfg.Threadify() {
+		// if automatic stripping is enabled, there is a chance something important may be stripped out
+		// to prevent that, we use a hacky way to generate content without stripping and save it as a file fist
+		if cfg.Stripify() {
+			contentOpts := cfg.ContentOptions()
+			contentOpts.Stripify = false
+			content := eml.ContentBody(threadID, contentOpts)
+			eml.Files = append(eml.Files, //nolint:forcetypeassert // that's ok
+				utils.NewFile("original.md", []byte(content.Parsed.(*event.MessageEventContent).Body)),
+			)
+		}
 		_, berr := b.lp.Send(ctx, roomID, eml.ContentBody(threadID, cfg.ContentOptions()))
 		if berr != nil {
 			return berr