btp 0.1.3

A rust library of, a lightweight protocol, Blog Transfer Protocol.
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
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93

mod _impl {
    type Error = Box<dyn std::error::Error + Send + Sync>;
    use crate::{
        VERSION,
        message::BtpPackage,
        socket::{BtpConfig, BtpSocket},
    };
    use std::{net::SocketAddr, time::Duration};
    use tokio::{
        net::{TcpStream, lookup_host},
        spawn,
        task::JoinHandle,
        time::sleep,
    };

    #[cfg(feature = "tls")]
    use rustls::pki_types::ServerName;
    #[cfg(feature = "tls")]
    use tokio_rustls::{TlsConnector, client::TlsStream};
    /// src/client.rs
    impl BtpSocket<TcpStream, SocketAddr> {
        /// Takes the [`BtpConfig`]. Connects to the given [`SocketAddr`]; and, returns the [`BtpSocket`], without TLS, as client.
        ///
        /// [`BtpConfig`]: crate::socket::BtpConfig
        /// [`SocketAddr`]: std::net::SocketAddr
        /// [`BtpSocket`]: crate::socket::BtpSocket
        pub async fn connect(
            conf: BtpConfig,
        ) -> Result<
            (
                BtpSocket<TcpStream, SocketAddr>,
                JoinHandle<Result<(), Error>>,
            ),
            Error,
        > {
            let sock_addr = lookup_host(&conf.addr)
                .await?
                .next()
                .ok_or("Couldn't find the IP address of the host")?;

            let sock = TcpStream::connect(&conf.addr).await.unwrap();
            let mut btp_socket = BtpSocket::from(sock, conf, sock_addr);
            let clone = btp_socket.copy();
            let okier: tokio::task::JoinHandle<Result<(), Error>> =
                spawn(BtpSocket::attach_okier(clone));

            Ok((btp_socket, okier))
        }

        async fn attach_okier(mut self) -> Result<(), Error> {
            loop {
                self.write(BtpPackage::okie(VERSION)).await?;
                sleep(Duration::from_secs(20)).await;
            }
        }

        pub async fn connect_without_okie_dokie(
            conf: BtpConfig,
        ) -> Result<BtpSocket<TcpStream, SocketAddr>, Error> {
            let sock_addr = lookup_host(&conf.addr)
                .await?
                .next()
                .ok_or("Couldn't find the IP address of the host")?;

            let sock = TcpStream::connect(&conf.addr).await.unwrap();

            Ok(BtpSocket::from(sock, conf, sock_addr))
        }

        #[cfg(feature = "tls")]
        /// Takes the [`BtpConfig`] and [`TcpConnector`]. Connects to the given [`SocketAddr`] with connector; and, returns the [`BtpSocket`], with TLS, as client.
        ///
        ///[`TcpConnector`]: tokio_rustls::TlsConnector
        /// [`BtpConfig`]: crate::socket::BtpConfig
        /// [`SocketAddr`]: std::net::SocketAddr
        /// [`BtpSocket`]: crate::socket::BtpSocket
        pub async fn connect_tls(
            connector: TlsConnector,
            conf: BtpConfig,
        ) -> Result<BtpSocket<TlsStream<TcpStream>, SocketAddr>, Error> {
            let sock_addr = lookup_host(&conf.addr)
                .await?
                .next()
                .ok_or("Couldn't find the IP address of the host")?;
            let server_name = ServerName::IpAddress(sock_addr.ip().into());

            let sock = TcpStream::connect(&conf.addr).await.unwrap();
            let tls_connection = connector.connect(server_name, sock).await?;

            Ok(BtpSocket::from(tls_connection, conf, sock_addr))
        }
    }
}