Line data    Source code

       1              : use std::net::IpAddr;
       2              : 
       3              : use postgres_protocol2::message::backend::Message;
       4              : use tokio::net::TcpStream;
       5              : use tokio::sync::mpsc;
       6              : 
       7              : use crate::client::SocketConfig;
       8              : use crate::codec::BackendMessage;
       9              : use crate::config::Host;
      10              : use crate::connect_raw::connect_raw;
      11              : use crate::connect_socket::connect_socket;
      12              : use crate::connect_tls::connect_tls;
      13              : use crate::tls::{MakeTlsConnect, TlsConnect};
      14              : use crate::{Client, Config, Connection, Error, RawConnection};
      15              : 
      16            0 : pub async fn connect<T>(
      17            0 :     tls: &T,
      18            0 :     config: &Config,
      19            0 : ) -> Result<(Client, Connection<TcpStream, T::Stream>), Error>
      20            0 : where
      21            0 :     T: MakeTlsConnect<TcpStream>,
      22            0 : {
      23            0 :     let hostname = match &config.host {
      24            0 :         Host::Tcp(host) => host.as_str(),
      25              :     };
      26              : 
      27            0 :     let tls = tls
      28            0 :         .make_tls_connect(hostname)
      29            0 :         .map_err(|e| Error::tls(e.into()))?;
      30              : 
      31            0 :     match connect_once(config.host_addr, &config.host, config.port, tls, config).await {
      32            0 :         Ok((client, connection)) => Ok((client, connection)),
      33            0 :         Err(e) => Err(e),
      34              :     }
      35            0 : }
      36              : 
      37            0 : async fn connect_once<T>(
      38            0 :     host_addr: Option<IpAddr>,
      39            0 :     host: &Host,
      40            0 :     port: u16,
      41            0 :     tls: T,
      42            0 :     config: &Config,
      43            0 : ) -> Result<(Client, Connection<TcpStream, T::Stream>), Error>
      44            0 : where
      45            0 :     T: TlsConnect<TcpStream>,
      46            0 : {
      47            0 :     let socket = connect_socket(host_addr, host, port, config.connect_timeout).await?;
      48            0 :     let stream = connect_tls(socket, config.ssl_mode, tls).await?;
      49              :     let RawConnection {
      50            0 :         stream,
      51            0 :         parameters,
      52            0 :         delayed_notice,
      53            0 :         process_id,
      54            0 :         secret_key,
      55            0 :     } = connect_raw(stream, config).await?;
      56              : 
      57            0 :     let socket_config = SocketConfig {
      58            0 :         host_addr,
      59            0 :         host: host.clone(),
      60            0 :         port,
      61            0 :         connect_timeout: config.connect_timeout,
      62            0 :     };
      63              : 
      64            0 :     let (client_tx, conn_rx) = mpsc::unbounded_channel();
      65            0 :     let (conn_tx, client_rx) = mpsc::channel(4);
      66            0 :     let client = Client::new(
      67            0 :         client_tx,
      68            0 :         client_rx,
      69            0 :         socket_config,
      70            0 :         config.ssl_mode,
      71            0 :         process_id,
      72            0 :         secret_key,
      73              :     );
      74              : 
      75              :     // delayed notices are always sent as "Async" messages.
      76            0 :     let delayed = delayed_notice
      77            0 :         .into_iter()
      78            0 :         .map(|m| BackendMessage::Async(Message::NoticeResponse(m)))
      79            0 :         .collect();
      80              : 
      81            0 :     let connection = Connection::new(stream, delayed, parameters, conn_tx, conn_rx);
      82              : 
      83            0 :     Ok((client, connection))
      84            0 : }