special commands added

assets/strings/en.yml

@@ -20,6 +20,10 @@ en:
 
   cmd_portal: "portal"
 
+  cmd_mars: "mars"
+
+  cmd_upload: "upload"
+
   cmd_mars_auth: "mars-auth"
 
   portal_text: "Open secured portal"
@@ -40,3 +44,6 @@ en:
   text_authorize: "Authorize"
 
   text_service_acc_auth: "Service account authorization:"
+
+  text_upload_title: "Open Upload page"
+  text_upload_header: "Upload media file"

bots/messaging_extension_action_preview_bot.py

@@ -387,6 +387,24 @@ class TeamsMessagingExtensionsActionPreviewBot(TeamsActivityHandler):
         cmd_sharepoint_acc = i18n.t("cmd_sharepoint_acc")
         cmd_mars_auth = i18n.t("cmd_mars_auth")
 
+        cmd_mars = i18n.t("cmd_mars")
+        cmd_upload = i18n.t("cmd_upload")
+
+        if message_lower in [cmd_mars.lower(), cmd_upload.lower()]:
+            header = i18n.t("text_upload_header")
+            title = i18n.t("text_upload_title")
+            url = self.generate_url(f"https://{AppConfig.MARS_FQDN}/",
+                                    turn_context.activity.conversation.id)
+            card = CardHelper.load_assets_card("link_card",
+                                               context=dict(title=title,
+                                                            url=url,
+                                                            header=header))
+            attachments = [CardFactory.adaptive_card(card)]
+            await turn_context.send_activity(
+                Activity(type=ActivityTypes.message, attachments=attachments)
+            )
+            return
+
         if message_lower == cmd_mars_auth.lower():
             header = i18n.t("text_service_acc_auth")
             title = i18n.t("text_authorize")