handle errors and failures

Author: bajrangCoder

src/lib/openFolder.js

@@ -204,6 +204,11 @@ async function expandList($list) {
 			});
 	} catch (err) {
 		$list.collapse();
+		if (err?.includes("Invalid message length")) {
+			console.error(err);
+			toast("SFTP connection broken. Restart the app");
+			return;
+		}
 		helpers.error(err);
 	} finally {
 		stopLoading();

src/plugins/sftp/src/com/foxdebug/sftp/Sftp.java

@@ -658,7 +658,12 @@ public void isConnected(JSONArray args, CallbackContext callback) {
       .execute(
         new Runnable() {
           public void run() {
-            if (ssh != null && ssh.isConnected()) {
+            if (
+              ssh != null &&
+              ssh.isConnected() &&
+              sftp != null &&
+              !sftp.isClosed()
+            ) {
               callback.success(connectionID);
               return;
             }