on_pi_trail Event
Fired when any protocol level communication occurs.
Syntax
class OFTPClientPITrailEventParams(object): @property def direction() -> int: ... @property def data() -> bytes: ... @property def command_id() -> int: ... @property def command_description() -> str: ... # In class OFTPClient: @property def on_pi_trail() -> Callable[[OFTPClientPITrailEventParams], None]: ... @on_pi_trail.setter def on_pi_trail(event_hook: Callable[[OFTPClientPITrailEventParams], None]) -> None: ...
Remarks
This event provides information about the protocol level communication between the client and server.
The Direction parameter specifies who sent the command.
| 0 (Client) | The command originated from the connected client. |
| 1 (Server) | The command originated from the server. |
The CommandId and CommandDescription parameters specify which command was sent. The table below shows possible values.
| CommandId | CommandDescription |
| 50 | SFPA (Start File Positive Answer) |
| 51 | SFNA (Start File Negative Answer) |
| 52 | EFPA (End File Positive Answer) |
| 53 | EFNA (End File Negative Answer) |
| 65 | AUCH (Authentication Challenge) |
| 67 | CDT (Set Credit) |
| 68 | DATA (Data Exchange Buffer) |
| 69 | EERP (End to End Response) |
| 70 | ESID (End Session) |
| 72 | SFID (Start File) |
| 73 | SSRM (Start Session Ready Message) |
| 74 | SECD (Security Change Direction) |
| 78 | NERP (Negative End Response) |
| 80 | RTR (Ready To Receive) |
| 82 | CD (Change Direction) |
| 83 | AURP (Authentication Response) |
| 84 | EFID (End File) |
| 88 | SSID (Start Session) |
The Data parameter contains the raw OFTP packet.