File gateway: Add logs
- Add logs whenever file gateway sends or receives a file.
Logs should contain at least filename & remote server, eg:
- File "xxx" sent to login@host:port.
- File "xxx" received from login@host:port.
- In errors logs, add information:
- "Error writing file": Add the filename.
- "Error listing files": Add the directory.
Edited by Houzefa Abbasbhay