149 lines
4.3 KiB
Rust
149 lines
4.3 KiB
Rust
use anyhow::{Error, format_err, bail};
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use lazy_static::lazy_static;
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use std::task::{Context, Poll};
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use std::os::unix::io::AsRawFd;
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use std::collections::HashMap;
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use std::pin::Pin;
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use hyper::{Uri, Body};
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use hyper::client::{Client, HttpConnector};
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use http::{Request, Response};
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use openssl::ssl::{SslConnector, SslMethod};
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use futures::*;
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use crate::tools::{
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async_io::EitherStream,
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socket::{
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set_tcp_keepalive,
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PROXMOX_BACKUP_TCP_KEEPALIVE_TIME,
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},
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};
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lazy_static! {
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static ref HTTP_CLIENT: Client<HttpsConnector, Body> = {
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let connector = SslConnector::builder(SslMethod::tls()).unwrap().build();
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let httpc = HttpConnector::new();
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let https = HttpsConnector::with_connector(httpc, connector);
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Client::builder().build(https)
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};
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}
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pub async fn get_string(uri: &str, extra_headers: Option<&HashMap<String, String>>) -> Result<String, Error> {
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let mut request = Request::builder()
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.method("GET")
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.uri(uri)
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.header("User-Agent", "proxmox-backup-client/1.0");
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if let Some(hs) = extra_headers {
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for (h, v) in hs.iter() {
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request = request.header(h, v);
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}
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}
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let request = request.body(Body::empty())?;
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let res = HTTP_CLIENT.request(request).await?;
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let status = res.status();
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if !status.is_success() {
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bail!("Got bad status '{}' from server", status)
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}
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response_body_string(res).await
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}
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pub async fn response_body_string(res: Response<Body>) -> Result<String, Error> {
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let buf = hyper::body::to_bytes(res).await?;
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String::from_utf8(buf.to_vec())
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.map_err(|err| format_err!("Error converting HTTP result data: {}", err))
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}
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pub async fn post(
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uri: &str,
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body: Option<String>,
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content_type: Option<&str>,
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) -> Result<Response<Body>, Error> {
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let body = if let Some(body) = body {
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Body::from(body)
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} else {
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Body::empty()
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};
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let content_type = content_type.unwrap_or("application/json");
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let request = Request::builder()
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.method("POST")
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.uri(uri)
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.header("User-Agent", "proxmox-backup-client/1.0")
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.header(hyper::header::CONTENT_TYPE, content_type)
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.body(body)?;
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HTTP_CLIENT.request(request)
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.map_err(Error::from)
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.await
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}
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#[derive(Clone)]
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pub struct HttpsConnector {
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http: HttpConnector,
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ssl_connector: std::sync::Arc<SslConnector>,
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}
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impl HttpsConnector {
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pub fn with_connector(mut http: HttpConnector, ssl_connector: SslConnector) -> Self {
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http.enforce_http(false);
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Self {
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http,
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ssl_connector: std::sync::Arc::new(ssl_connector),
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}
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}
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}
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type MaybeTlsStream = EitherStream<
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tokio::net::TcpStream,
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Pin<Box<tokio_openssl::SslStream<tokio::net::TcpStream>>>,
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>;
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impl hyper::service::Service<Uri> for HttpsConnector {
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type Response = MaybeTlsStream;
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type Error = Error;
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type Future = std::pin::Pin<Box<
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dyn Future<Output = Result<Self::Response, Self::Error>> + Send + 'static
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>>;
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fn poll_ready(&mut self, _: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
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// This connector is always ready, but others might not be.
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Poll::Ready(Ok(()))
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}
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fn call(&mut self, dst: Uri) -> Self::Future {
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let mut this = self.clone();
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async move {
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let is_https = dst
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.scheme()
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.ok_or_else(|| format_err!("missing URL scheme"))?
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== "https";
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let config = this.ssl_connector.configure();
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let dst_str = dst.to_string(); // for error messages
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let conn = this
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.http
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.call(dst)
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.await
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.map_err(|err| format_err!("error connecting to {} - {}", dst_str, err))?;
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let _ = set_tcp_keepalive(conn.as_raw_fd(), PROXMOX_BACKUP_TCP_KEEPALIVE_TIME);
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if is_https {
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let conn: tokio_openssl::SslStream<tokio::net::TcpStream> = tokio_openssl::SslStream::new(config?.into_ssl(&dst_str)?, conn)?;
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let mut conn = Box::pin(conn);
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conn.as_mut().connect().await?;
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Ok(MaybeTlsStream::Right(conn))
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} else {
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Ok(MaybeTlsStream::Left(conn))
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}
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}.boxed()
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}
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}
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