Error "Cannot read property 'directory' of undefined" is produced when trying to poll for files

[jhorbulyk]

Component Bug Report

Description

Currently, whenever the polling trigger is used in the SFTP component, an error "Cannot read property 'directory' of undefined" is produced.

Component Version

• Version of the component running when the below steps to reproduce were performed: 1.4.6
• Platform version running when/installation name where the below steps were reproduced: 22.14
• Credentials used: Elastic.io SFTP server (sftp.elasticio.org)

Steps to Reproduce

1. Create a new flow
2. Set the first step to SFTP -> Poll Files.
3. Select any valid directory (e.g. /www/jacob) and select Emit Individually as the emit behavior.
4. Attempt to generate a sample.

Actual Result

• The error Cannot read property 'directory' of undefined is generated.
• The following appear in the logs:

  Starting your Docker container ...
  TypeError: Cannot read property 'directory' of undefined
  at SftpPolling.getObjects (/home/apprunner/lib/utils/pollingUtil.js:18:49)
  at SftpPolling.process (/home/apprunner/node_modules/@elastic.io/oih-standard-library/lib/triggers/getNewAndUpdated.js:33:47)
  at TaskExec.process (/home/apprunner/lib/triggers/polling.js:8:24)
  at processTicksAndRejections (internal/process/task_queues.js:95:5)
  [INFO  tini (1)] Spawned child process '/run.sh' with pid '6'
  Starting application in apprunner...
  Will try to start app at /home/apprunner
  node: /usr/lib/libstdc++.so.6: no version information available (required by node)
  node: /usr/lib/libstdc++.so.6: no version information available (required by node)
  node: /usr/lib/libstdc++.so.6: no version information available (required by node)
  node: /usr/lib/libstdc++.so.6: no version information available (required by node)
  node: /usr/lib/libstdc++.so.6: no version information available (required by node)
  node: /usr/lib/libstdc++.so.6: no version information available (required by node)
  node: /usr/lib/libstdc++.so.6: no version information available (required by node)
  node: /usr/lib/libstdc++.so.6: no version information available (required by node)
  invokeModuleFunction – init is not found
  Checking if incoming messages is lightweight...
  Fully initialized and waiting for messages
  Client successfully connected
  Starting processing Polling trigger
  Error occurred during trigger or action processing
  Unexpected error while processing Polling Trigger call

Expected Result

• A sample is successfully produced.

Workaround(s)

Downgrade to version 1.4.5