flep 0.2.0

File transfer protocol (FTP) library
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

use {Error, protocol};
use server::client::{ClientState, Action};
use io::DataTransferMode;

pub fn handle_pasv(client: &mut ClientState)
    -> Result<Action, Error> {
    let port = listen_passive_dtp(client)?;
    Ok(Action::EstablishDataConnection {
        reply: protocol::reply::pasv::success(port),
        mode: DataTransferMode::Passive { port: port }
    })
}

pub fn handle_epsv(client: &mut ClientState)
    -> Result<Action, Error> {
    let port = listen_passive_dtp(client)?;
    Ok(Action::EstablishDataConnection {
        reply: protocol::reply::epsv::success(port),
        mode: DataTransferMode::Passive { port: port }
    })
}

/// Attempts to open a data connection passively.
fn listen_passive_dtp(client: &mut ClientState)
    -> Result<u16, Error> {
    let mut session = client.session.expect_ready_mut()?;
    let port = 5166;

    session.data_transfer_mode = DataTransferMode::Passive { port: port };
    Ok(port)
}