922 lines
30 KiB
Rust
922 lines
30 KiB
Rust
use std::net::IpAddr;
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use std::sync::{Arc, RwLock};
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use std::time::Duration;
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use std::{fmt, str};
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use crate::header::{
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Entry, HeaderMap, HeaderValue, ACCEPT, ACCEPT_ENCODING, CONTENT_ENCODING, CONTENT_LENGTH,
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CONTENT_TYPE, LOCATION, PROXY_AUTHORIZATION, RANGE, REFERER, TRANSFER_ENCODING, USER_AGENT,
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};
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use bytes::Bytes;
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use http::Uri;
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use hyper::client::ResponseFuture;
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use mime;
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#[cfg(feature = "default-tls")]
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use native_tls::TlsConnector;
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use std::future::Future;
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use std::pin::Pin;
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use std::task::{Context, Poll};
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use tokio::{clock, timer::Delay};
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use log::debug;
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use super::request::{Request, RequestBuilder};
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use super::response::Response;
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use crate::connect::Connector;
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use crate::cookie;
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use crate::into_url::{expect_uri, try_uri};
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use crate::proxy::get_proxies;
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use crate::redirect::{self, remove_sensitive_headers, RedirectPolicy};
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#[cfg(feature = "tls")]
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use crate::tls::TlsBackend;
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#[cfg(feature = "tls")]
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use crate::{Certificate, Identity};
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use crate::{IntoUrl, Method, Proxy, StatusCode, Url};
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static DEFAULT_USER_AGENT: &str = concat!(env!("CARGO_PKG_NAME"), "/", env!("CARGO_PKG_VERSION"));
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/// An asynchronous `Client` to make Requests with.
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///
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/// The Client has various configuration values to tweak, but the defaults
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/// are set to what is usually the most commonly desired value. To configure a
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/// `Client`, use `Client::builder()`.
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///
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/// The `Client` holds a connection pool internally, so it is advised that
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/// you create one and **reuse** it.
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#[derive(Clone)]
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pub struct Client {
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inner: Arc<ClientRef>,
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}
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/// A `ClientBuilder` can be used to create a `Client` with custom configuration.
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pub struct ClientBuilder {
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config: Config,
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}
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struct Config {
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gzip: bool,
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headers: HeaderMap,
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#[cfg(feature = "default-tls")]
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hostname_verification: bool,
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#[cfg(feature = "tls")]
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certs_verification: bool,
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connect_timeout: Option<Duration>,
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max_idle_per_host: usize,
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#[cfg(feature = "tls")]
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identity: Option<Identity>,
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proxies: Vec<Proxy>,
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redirect_policy: RedirectPolicy,
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referer: bool,
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timeout: Option<Duration>,
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#[cfg(feature = "tls")]
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root_certs: Vec<Certificate>,
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#[cfg(feature = "tls")]
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tls: TlsBackend,
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http2_only: bool,
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http1_title_case_headers: bool,
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local_address: Option<IpAddr>,
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nodelay: bool,
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cookie_store: Option<cookie::CookieStore>,
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}
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impl ClientBuilder {
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/// Constructs a new `ClientBuilder`.
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///
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/// This is the same as `Client::builder()`.
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pub fn new() -> ClientBuilder {
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let mut headers: HeaderMap<HeaderValue> = HeaderMap::with_capacity(2);
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headers.insert(USER_AGENT, HeaderValue::from_static(DEFAULT_USER_AGENT));
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headers.insert(
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ACCEPT,
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HeaderValue::from_str(mime::STAR_STAR.as_ref()).expect("unable to parse mime"),
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);
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ClientBuilder {
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config: Config {
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gzip: true,
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headers,
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#[cfg(feature = "default-tls")]
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hostname_verification: true,
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#[cfg(feature = "tls")]
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certs_verification: true,
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connect_timeout: None,
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max_idle_per_host: std::usize::MAX,
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proxies: Vec::new(),
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redirect_policy: RedirectPolicy::default(),
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referer: true,
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timeout: None,
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#[cfg(feature = "tls")]
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root_certs: Vec::new(),
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#[cfg(feature = "tls")]
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identity: None,
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#[cfg(feature = "tls")]
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tls: TlsBackend::default(),
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http2_only: false,
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http1_title_case_headers: false,
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local_address: None,
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nodelay: false,
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cookie_store: None,
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},
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}
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}
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/// Returns a `Client` that uses this `ClientBuilder` configuration.
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///
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/// # Errors
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///
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/// This method fails if TLS backend cannot be initialized, or the resolver
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/// cannot load the system configuration.
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pub fn build(self) -> crate::Result<Client> {
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let config = self.config;
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let proxies = Arc::new(config.proxies);
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let mut connector = {
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#[cfg(feature = "tls")]
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match config.tls {
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#[cfg(feature = "default-tls")]
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TlsBackend::Default => {
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let mut tls = TlsConnector::builder();
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tls.danger_accept_invalid_hostnames(!config.hostname_verification);
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tls.danger_accept_invalid_certs(!config.certs_verification);
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for cert in config.root_certs {
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cert.add_to_native_tls(&mut tls);
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}
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if let Some(id) = config.identity {
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id.add_to_native_tls(&mut tls)?;
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}
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Connector::new_default_tls(
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tls,
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proxies.clone(),
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config.local_address,
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config.nodelay,
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)?
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}
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#[cfg(feature = "rustls-tls")]
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TlsBackend::Rustls => {
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use crate::tls::NoVerifier;
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let mut tls = rustls::ClientConfig::new();
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if config.http2_only {
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tls.set_protocols(&["h2".into()]);
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} else {
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tls.set_protocols(&["h2".into(), "http/1.1".into()]);
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}
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tls.root_store
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.add_server_trust_anchors(&webpki_roots::TLS_SERVER_ROOTS);
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if !config.certs_verification {
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tls.dangerous()
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.set_certificate_verifier(Arc::new(NoVerifier));
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}
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for cert in config.root_certs {
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cert.add_to_rustls(&mut tls)?;
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}
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if let Some(id) = config.identity {
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id.add_to_rustls(&mut tls)?;
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}
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Connector::new_rustls_tls(
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tls,
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proxies.clone(),
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config.local_address,
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config.nodelay,
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)?
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}
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}
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#[cfg(not(feature = "tls"))]
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Connector::new(proxies.clone(), config.local_address, config.nodelay)?
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};
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connector.set_timeout(config.connect_timeout);
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let mut builder = hyper::Client::builder();
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if config.http2_only {
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builder.http2_only(true);
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}
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builder.max_idle_per_host(config.max_idle_per_host);
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if config.http1_title_case_headers {
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builder.http1_title_case_headers(true);
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}
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let hyper_client = builder.build(connector);
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let proxies_maybe_http_auth = proxies.iter().any(|p| p.maybe_has_http_auth());
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let cookie_store = config.cookie_store.map(RwLock::new);
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Ok(Client {
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inner: Arc::new(ClientRef {
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cookie_store,
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gzip: config.gzip,
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hyper: hyper_client,
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headers: config.headers,
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redirect_policy: config.redirect_policy,
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referer: config.referer,
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request_timeout: config.timeout,
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proxies,
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proxies_maybe_http_auth,
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}),
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})
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}
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/// Set that all sockets have `SO_NODELAY` set to `true`.
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pub fn tcp_nodelay(mut self) -> ClientBuilder {
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self.config.nodelay = true;
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self
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}
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/// Use native TLS backend.
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#[cfg(feature = "default-tls")]
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pub fn use_default_tls(mut self) -> ClientBuilder {
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self.config.tls = TlsBackend::Default;
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self
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}
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/// Use rustls TLS backend.
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#[cfg(feature = "rustls-tls")]
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pub fn use_rustls_tls(mut self) -> ClientBuilder {
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self.config.tls = TlsBackend::Rustls;
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self
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}
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/// Add a custom root certificate.
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///
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/// This can be used to connect to a server that has a self-signed
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/// certificate for example.
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#[cfg(feature = "tls")]
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pub fn add_root_certificate(mut self, cert: Certificate) -> ClientBuilder {
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self.config.root_certs.push(cert);
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self
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}
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/// Sets the identity to be used for client certificate authentication.
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#[cfg(feature = "tls")]
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pub fn identity(mut self, identity: Identity) -> ClientBuilder {
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self.config.identity = Some(identity);
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self
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}
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/// Controls the use of hostname verification.
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///
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/// Defaults to `false`.
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///
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/// # Warning
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///
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/// You should think very carefully before you use this method. If
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/// hostname verification is not used, any valid certificate for any
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/// site will be trusted for use from any other. This introduces a
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/// significant vulnerability to man-in-the-middle attacks.
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#[cfg(feature = "default-tls")]
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pub fn danger_accept_invalid_hostnames(
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mut self,
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accept_invalid_hostname: bool,
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) -> ClientBuilder {
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self.config.hostname_verification = !accept_invalid_hostname;
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self
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}
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/// Controls the use of certificate validation.
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///
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/// Defaults to `false`.
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///
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/// # Warning
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///
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/// You should think very carefully before using this method. If
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/// invalid certificates are trusted, *any* certificate for *any* site
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/// will be trusted for use. This includes expired certificates. This
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/// introduces significant vulnerabilities, and should only be used
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/// as a last resort.
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#[cfg(feature = "tls")]
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pub fn danger_accept_invalid_certs(mut self, accept_invalid_certs: bool) -> ClientBuilder {
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self.config.certs_verification = !accept_invalid_certs;
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self
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}
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/// Sets the default headers for every request.
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pub fn default_headers(mut self, headers: HeaderMap) -> ClientBuilder {
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for (key, value) in headers.iter() {
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self.config.headers.insert(key, value.clone());
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}
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self
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}
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/// Enable auto gzip decompression by checking the ContentEncoding response header.
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///
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/// If auto gzip decompresson is turned on:
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/// - When sending a request and if the request's headers do not already contain
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/// an `Accept-Encoding` **and** `Range` values, the `Accept-Encoding` header is set to `gzip`.
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/// The body is **not** automatically compressed.
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/// - When receiving a response, if it's headers contain a `Content-Encoding` value that
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/// equals to `gzip`, both values `Content-Encoding` and `Content-Length` are removed from the
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/// headers' set. The body is automatically decompressed.
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///
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/// Default is enabled.
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pub fn gzip(mut self, enable: bool) -> ClientBuilder {
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self.config.gzip = enable;
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self
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}
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/// Add a `Proxy` to the list of proxies the `Client` will use.
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pub fn proxy(mut self, proxy: Proxy) -> ClientBuilder {
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self.config.proxies.push(proxy);
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self
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}
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/// Clear all `Proxies`, so `Client` will use no proxy anymore.
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pub fn no_proxy(mut self) -> ClientBuilder {
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self.config.proxies.clear();
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self
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}
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/// Add system proxy setting to the list of proxies
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pub fn use_sys_proxy(mut self) -> ClientBuilder {
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let proxies = get_proxies();
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self.config.proxies.push(Proxy::custom(move |url| {
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if proxies.contains_key(url.scheme()) {
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Some((*proxies.get(url.scheme()).unwrap()).clone())
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} else {
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None
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}
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}));
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self
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}
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/// Set a `RedirectPolicy` for this client.
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///
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/// Default will follow redirects up to a maximum of 10.
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pub fn redirect(mut self, policy: RedirectPolicy) -> ClientBuilder {
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self.config.redirect_policy = policy;
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self
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}
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/// Enable or disable automatic setting of the `Referer` header.
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///
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/// Default is `true`.
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pub fn referer(mut self, enable: bool) -> ClientBuilder {
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self.config.referer = enable;
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self
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}
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/// Enables a request timeout.
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///
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/// The timeout is applied from the when the request starts connecting
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/// until the response body has finished.
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///
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/// Default is no timeout.
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pub fn timeout(mut self, timeout: Duration) -> ClientBuilder {
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self.config.timeout = Some(timeout);
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self
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}
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/// Sets the maximum idle connection per host allowed in the pool.
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///
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/// Default is usize::MAX (no limit).
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pub fn max_idle_per_host(mut self, max: usize) -> ClientBuilder {
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self.config.max_idle_per_host = max;
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self
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}
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/// Only use HTTP/2.
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pub fn h2_prior_knowledge(mut self) -> ClientBuilder {
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self.config.http2_only = true;
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self
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}
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/// Enable case sensitive headers.
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pub fn http1_title_case_headers(mut self) -> ClientBuilder {
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self.config.http1_title_case_headers = true;
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self
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}
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/// Set a timeout for only the connect phase of a `Client`.
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///
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/// Default is `None`.
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///
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/// # Note
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///
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/// This **requires** the futures be executed in a tokio runtime with
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/// a tokio timer enabled.
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pub fn connect_timeout(mut self, timeout: Duration) -> ClientBuilder {
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self.config.connect_timeout = Some(timeout);
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self
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}
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#[doc(hidden)]
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#[deprecated(note = "DNS no longer uses blocking threads")]
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pub fn dns_threads(self, _threads: usize) -> ClientBuilder {
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self
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}
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/// Bind to a local IP Address
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pub fn local_address<T>(mut self, addr: T) -> ClientBuilder
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where
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T: Into<Option<IpAddr>>,
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{
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self.config.local_address = addr.into();
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self
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}
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/// Enable a persistent cookie store for the client.
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///
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/// Cookies received in responses will be preserved and included in
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/// additional requests.
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///
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/// By default, no cookie store is used.
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pub fn cookie_store(mut self, enable: bool) -> ClientBuilder {
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self.config.cookie_store = if enable {
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Some(cookie::CookieStore::default())
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} else {
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None
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};
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self
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}
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}
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|
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type HyperClient = hyper::Client<Connector>;
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|
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impl Client {
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/// Constructs a new `Client`.
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///
|
|
/// # Panics
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|
///
|
|
/// This method panics if TLS backend cannot initialized, or the resolver
|
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/// cannot load the system configuration.
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///
|
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/// Use `Client::builder()` if you wish to handle the failure as an `Error`
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/// instead of panicking.
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pub fn new() -> Client {
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ClientBuilder::new().build().expect("Client::new()")
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}
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|
|
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/// Creates a `ClientBuilder` to configure a `Client`.
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///
|
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/// This is the same as `ClientBuilder::new()`.
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pub fn builder() -> ClientBuilder {
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ClientBuilder::new()
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}
|
|
|
|
/// Convenience method to make a `GET` request to a URL.
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|
///
|
|
/// # Errors
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|
///
|
|
/// This method fails whenever supplied `Url` cannot be parsed.
|
|
pub fn get<U: IntoUrl>(&self, url: U) -> RequestBuilder {
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self.request(Method::GET, url)
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}
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|
|
|
/// Convenience method to make a `POST` request to a URL.
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|
///
|
|
/// # Errors
|
|
///
|
|
/// This method fails whenever supplied `Url` cannot be parsed.
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|
pub fn post<U: IntoUrl>(&self, url: U) -> RequestBuilder {
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self.request(Method::POST, url)
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}
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|
|
|
/// Convenience method to make a `PUT` request to a URL.
|
|
///
|
|
/// # Errors
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|
///
|
|
/// This method fails whenever supplied `Url` cannot be parsed.
|
|
pub fn put<U: IntoUrl>(&self, url: U) -> RequestBuilder {
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self.request(Method::PUT, url)
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}
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|
|
|
/// Convenience method to make a `PATCH` request to a URL.
|
|
///
|
|
/// # Errors
|
|
///
|
|
/// This method fails whenever supplied `Url` cannot be parsed.
|
|
pub fn patch<U: IntoUrl>(&self, url: U) -> RequestBuilder {
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self.request(Method::PATCH, url)
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|
}
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|
|
|
/// Convenience method to make a `DELETE` request to a URL.
|
|
///
|
|
/// # Errors
|
|
///
|
|
/// This method fails whenever supplied `Url` cannot be parsed.
|
|
pub fn delete<U: IntoUrl>(&self, url: U) -> RequestBuilder {
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self.request(Method::DELETE, url)
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}
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|
|
|
/// Convenience method to make a `HEAD` request to a URL.
|
|
///
|
|
/// # Errors
|
|
///
|
|
/// This method fails whenever supplied `Url` cannot be parsed.
|
|
pub fn head<U: IntoUrl>(&self, url: U) -> RequestBuilder {
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self.request(Method::HEAD, url)
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}
|
|
|
|
/// Start building a `Request` with the `Method` and `Url`.
|
|
///
|
|
/// Returns a `RequestBuilder`, which will allow setting headers and
|
|
/// request body before sending.
|
|
///
|
|
/// # Errors
|
|
///
|
|
/// This method fails whenever supplied `Url` cannot be parsed.
|
|
pub fn request<U: IntoUrl>(&self, method: Method, url: U) -> RequestBuilder {
|
|
let req = url.into_url().map(move |url| Request::new(method, url));
|
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RequestBuilder::new(self.clone(), req)
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|
}
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|
|
|
/// Executes a `Request`.
|
|
///
|
|
/// A `Request` can be built manually with `Request::new()` or obtained
|
|
/// from a RequestBuilder with `RequestBuilder::build()`.
|
|
///
|
|
/// You should prefer to use the `RequestBuilder` and
|
|
/// `RequestBuilder::send()`.
|
|
///
|
|
/// # Errors
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///
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/// This method fails if there was an error while sending request,
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/// redirect loop was detected or redirect limit was exhausted.
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pub fn execute(
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&self,
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request: Request,
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) -> impl Future<Output = Result<Response, crate::Error>> {
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self.execute_request(request)
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}
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pub(super) fn execute_request(&self, req: Request) -> Pending {
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let (method, url, mut headers, body) = req.pieces();
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// insert default headers in the request headers
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// without overwriting already appended headers.
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for (key, value) in &self.inner.headers {
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if let Ok(Entry::Vacant(entry)) = headers.entry(key) {
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entry.insert(value.clone());
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}
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}
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// Add cookies from the cookie store.
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if let Some(cookie_store_wrapper) = self.inner.cookie_store.as_ref() {
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if headers.get(crate::header::COOKIE).is_none() {
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let cookie_store = cookie_store_wrapper.read().unwrap();
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add_cookie_header(&mut headers, &cookie_store, &url);
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}
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}
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if self.inner.gzip && !headers.contains_key(ACCEPT_ENCODING) && !headers.contains_key(RANGE)
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{
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headers.insert(ACCEPT_ENCODING, HeaderValue::from_static("gzip"));
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}
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let uri = expect_uri(&url);
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let (reusable, body) = match body {
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Some(body) => {
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let (reusable, body) = body.into_hyper();
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(Some(reusable), body)
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}
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None => (None, hyper::Body::empty()),
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};
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self.proxy_auth(&uri, &mut headers);
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let mut req = hyper::Request::builder()
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.method(method.clone())
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.uri(uri.clone())
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.body(body)
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.expect("valid request parts");
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*req.headers_mut() = headers.clone();
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let in_flight = self.inner.hyper.request(req);
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let timeout = self
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.inner
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.request_timeout
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.map(|dur| tokio::timer::delay(clock::now() + dur));
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Pending {
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inner: PendingInner::Request(PendingRequest {
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method,
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url,
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headers,
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body: reusable,
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urls: Vec::new(),
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client: self.inner.clone(),
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in_flight,
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timeout,
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}),
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}
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}
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fn proxy_auth(&self, dst: &Uri, headers: &mut HeaderMap) {
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if !self.inner.proxies_maybe_http_auth {
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return;
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}
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// Only set the header here if the destination scheme is 'http',
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// since otherwise, the header will be included in the CONNECT tunnel
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// request instead.
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if dst.scheme_part() != Some(&::http::uri::Scheme::HTTP) {
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return;
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}
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if headers.contains_key(PROXY_AUTHORIZATION) {
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return;
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}
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for proxy in self.inner.proxies.iter() {
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if proxy.is_match(dst) {
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if let Some(header) = proxy.http_basic_auth(dst) {
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headers.insert(PROXY_AUTHORIZATION, header);
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}
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break;
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}
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}
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}
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}
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impl fmt::Debug for Client {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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f.debug_struct("Client")
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.field("gzip", &self.inner.gzip)
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.field("redirect_policy", &self.inner.redirect_policy)
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.field("referer", &self.inner.referer)
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.finish()
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}
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}
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impl fmt::Debug for ClientBuilder {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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f.debug_struct("ClientBuilder").finish()
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}
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}
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struct ClientRef {
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cookie_store: Option<RwLock<cookie::CookieStore>>,
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gzip: bool,
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headers: HeaderMap,
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hyper: HyperClient,
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redirect_policy: RedirectPolicy,
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referer: bool,
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request_timeout: Option<Duration>,
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proxies: Arc<Vec<Proxy>>,
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proxies_maybe_http_auth: bool,
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}
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pub(super) struct Pending {
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inner: PendingInner,
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}
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enum PendingInner {
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Request(PendingRequest),
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Error(Option<crate::Error>),
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}
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struct PendingRequest {
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method: Method,
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url: Url,
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headers: HeaderMap,
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body: Option<Option<Bytes>>,
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urls: Vec<Url>,
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client: Arc<ClientRef>,
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in_flight: ResponseFuture,
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timeout: Option<Delay>,
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}
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impl PendingRequest {
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fn in_flight(self: Pin<&mut Self>) -> Pin<&mut ResponseFuture> {
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unsafe { Pin::map_unchecked_mut(self, |x| &mut x.in_flight) }
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}
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fn timeout(self: Pin<&mut Self>) -> Pin<&mut Option<Delay>> {
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unsafe { Pin::map_unchecked_mut(self, |x| &mut x.timeout) }
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}
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fn urls(self: Pin<&mut Self>) -> &mut Vec<Url> {
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unsafe { &mut Pin::get_unchecked_mut(self).urls }
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}
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fn headers(self: Pin<&mut Self>) -> &mut HeaderMap {
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unsafe { &mut Pin::get_unchecked_mut(self).headers }
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}
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}
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impl Pending {
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pub(super) fn new_err(err: crate::Error) -> Pending {
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Pending {
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inner: PendingInner::Error(Some(err)),
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}
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}
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fn inner(self: Pin<&mut Self>) -> Pin<&mut PendingInner> {
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unsafe { Pin::map_unchecked_mut(self, |x| &mut x.inner) }
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}
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}
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impl Future for Pending {
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type Output = Result<Response, crate::Error>;
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fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
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let inner = self.inner();
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match inner.get_mut() {
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PendingInner::Request(ref mut req) => Pin::new(req).poll(cx),
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PendingInner::Error(ref mut err) => Poll::Ready(Err(err
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.take()
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.expect("Pending error polled more than once"))),
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}
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}
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}
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impl Future for PendingRequest {
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type Output = Result<Response, crate::Error>;
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fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
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if let Some(delay) = self.as_mut().timeout().as_mut().as_pin_mut() {
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if let Poll::Ready(()) = delay.poll(cx) {
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return Poll::Ready(Err(crate::error::timedout(Some(self.url.clone()))));
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}
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}
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loop {
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let res = match self.as_mut().in_flight().as_mut().poll(cx) {
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Poll::Ready(Err(e)) => return Poll::Ready(url_error!(e, &self.url)),
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Poll::Ready(Ok(res)) => res,
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Poll::Pending => return Poll::Pending,
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};
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if let Some(store_wrapper) = self.client.cookie_store.as_ref() {
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let mut store = store_wrapper.write().unwrap();
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let cookies = cookie::extract_response_cookies(&res.headers())
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.filter_map(|res| res.ok())
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.map(|cookie| cookie.into_inner().into_owned());
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store.0.store_response_cookies(cookies, &self.url);
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}
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let should_redirect = match res.status() {
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StatusCode::MOVED_PERMANENTLY | StatusCode::FOUND | StatusCode::SEE_OTHER => {
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self.body = None;
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for header in &[
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TRANSFER_ENCODING,
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CONTENT_ENCODING,
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CONTENT_TYPE,
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CONTENT_LENGTH,
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] {
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self.headers.remove(header);
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}
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match self.method {
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Method::GET | Method::HEAD => {}
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_ => {
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self.method = Method::GET;
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}
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}
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true
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}
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StatusCode::TEMPORARY_REDIRECT | StatusCode::PERMANENT_REDIRECT => {
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match self.body {
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Some(Some(_)) | None => true,
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Some(None) => false,
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}
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}
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_ => false,
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};
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if should_redirect {
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let loc = res.headers().get(LOCATION).and_then(|val| {
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let loc = (|| -> Option<Url> {
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// Some sites may send a utf-8 Location header,
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// even though we're supposed to treat those bytes
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// as opaque, we'll check specifically for utf8.
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self.url.join(str::from_utf8(val.as_bytes()).ok()?).ok()
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})();
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// Check that the `url` is also a valid `http::Uri`.
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//
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// If not, just log it and skip the redirect.
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let loc = loc.and_then(|url| {
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if try_uri(&url).is_some() {
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Some(url)
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} else {
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None
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}
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});
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if loc.is_none() {
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debug!("Location header had invalid URI: {:?}", val);
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}
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loc
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});
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if let Some(loc) = loc {
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if self.client.referer {
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if let Some(referer) = make_referer(&loc, &self.url) {
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self.headers.insert(REFERER, referer);
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}
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}
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let url = self.url.clone();
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self.as_mut().urls().push(url);
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let action = self
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.client
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.redirect_policy
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.check(res.status(), &loc, &self.urls);
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match action {
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redirect::Action::Follow => {
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self.url = loc;
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let mut headers =
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std::mem::replace(self.as_mut().headers(), HeaderMap::new());
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remove_sensitive_headers(&mut headers, &self.url, &self.urls);
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debug!("redirecting to {:?} '{}'", self.method, self.url);
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let uri = expect_uri(&self.url);
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let body = match self.body {
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Some(Some(ref body)) => hyper::Body::from(body.clone()),
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_ => hyper::Body::empty(),
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};
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let mut req = hyper::Request::builder()
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.method(self.method.clone())
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.uri(uri.clone())
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.body(body)
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.expect("valid request parts");
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// Add cookies from the cookie store.
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if let Some(cookie_store_wrapper) = self.client.cookie_store.as_ref() {
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let cookie_store = cookie_store_wrapper.read().unwrap();
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add_cookie_header(&mut headers, &cookie_store, &self.url);
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}
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*req.headers_mut() = headers.clone();
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std::mem::swap(self.as_mut().headers(), &mut headers);
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*self.as_mut().in_flight().get_mut() = self.client.hyper.request(req);
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continue;
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}
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redirect::Action::Stop => {
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debug!("redirect_policy disallowed redirection to '{}'", loc);
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}
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redirect::Action::LoopDetected => {
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return Poll::Ready(Err(crate::error::loop_detected(self.url.clone())));
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}
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redirect::Action::TooManyRedirects => {
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return Poll::Ready(Err(crate::error::too_many_redirects(
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self.url.clone(),
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)));
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}
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}
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}
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}
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let res = Response::new(res, self.url.clone(), self.client.gzip, self.timeout.take());
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return Poll::Ready(Ok(res));
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}
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}
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}
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impl fmt::Debug for Pending {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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match self.inner {
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PendingInner::Request(ref req) => f
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.debug_struct("Pending")
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.field("method", &req.method)
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.field("url", &req.url)
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.finish(),
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PendingInner::Error(ref err) => f.debug_struct("Pending").field("error", err).finish(),
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}
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}
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}
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fn make_referer(next: &Url, previous: &Url) -> Option<HeaderValue> {
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if next.scheme() == "http" && previous.scheme() == "https" {
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return None;
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}
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let mut referer = previous.clone();
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let _ = referer.set_username("");
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let _ = referer.set_password(None);
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referer.set_fragment(None);
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referer.as_str().parse().ok()
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}
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fn add_cookie_header(headers: &mut HeaderMap, cookie_store: &cookie::CookieStore, url: &Url) {
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let header = cookie_store
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.0
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.get_request_cookies(url)
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.map(|c| format!("{}={}", c.name(), c.value()))
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.collect::<Vec<_>>()
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.join("; ");
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if !header.is_empty() {
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headers.insert(
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crate::header::COOKIE,
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HeaderValue::from_bytes(header.as_bytes()).unwrap(),
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);
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}
|
|
}
|