486 lines
14 KiB
Rust
486 lines
14 KiB
Rust
use std::future::Future;
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use std::pin::Pin;
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use std::sync::{Arc, Mutex, atomic::{AtomicUsize, Ordering}};
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use std::time::{Duration/*, Instant*/};
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use hyper::{Body, Client, Request, Response, Server, Version};
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use hyper::client::HttpConnector;
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use hyper::service::{make_service_fn, service_fn};
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pub use std::net::SocketAddr;
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pub use futures_util::{future, FutureExt as _, StreamExt as _, TryFutureExt as _, TryStreamExt as _};
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pub use hyper::{HeaderMap, StatusCode};
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macro_rules! t {
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(
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$name:ident,
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parallel: $range:expr
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) => (
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#[test]
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fn $name() {
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let mut c = vec![];
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let mut s = vec![];
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for _i in $range {
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c.push((
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__CReq {
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uri: "/",
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body: vec![b'x'; 8192],
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..Default::default()
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},
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__CRes {
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body: vec![b'x'; 8192],
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..Default::default()
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},
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));
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s.push((
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__SReq {
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uri: "/",
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body: vec![b'x'; 8192],
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..Default::default()
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},
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__SRes {
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body: vec![b'x'; 8192],
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..Default::default()
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},
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));
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}
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__run_test(__TestConfig {
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client_version: 2,
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client_msgs: c.clone(),
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server_version: 2,
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server_msgs: s.clone(),
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parallel: true,
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connections: 1,
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proxy: false,
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});
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__run_test(__TestConfig {
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client_version: 2,
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client_msgs: c,
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server_version: 2,
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server_msgs: s,
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parallel: true,
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connections: 1,
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proxy: true,
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});
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}
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);
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(
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$name:ident,
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client: $(
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request: $(
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$c_req_prop:ident: $c_req_val:tt,
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)*;
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response: $(
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$c_res_prop:ident: $c_res_val:tt,
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)*;
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)*
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server: $(
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request: $(
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$s_req_prop:ident: $s_req_val:tt,
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)*;
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response: $(
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$s_res_prop:ident: $s_res_val:tt,
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)*;
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)*
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) => (
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#[test]
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fn $name() {
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let c = vec![$((
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__CReq {
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$($c_req_prop: __internal_map_prop!($c_req_prop: $c_req_val),)*
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..Default::default()
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},
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__CRes {
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$($c_res_prop: __internal_eq_prop!($c_res_prop: $c_res_val),)*
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..Default::default()
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}
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),)*];
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let s = vec![$((
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__SReq {
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$($s_req_prop: __internal_eq_prop!($s_req_prop: $s_req_val),)*
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..Default::default()
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},
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__SRes {
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$($s_res_prop: __internal_map_prop!($s_res_prop: $s_res_val),)*
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..Default::default()
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}
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),)*];
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__run_test(__TestConfig {
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client_version: 1,
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client_msgs: c.clone(),
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server_version: 1,
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server_msgs: s.clone(),
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parallel: false,
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connections: 1,
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proxy: false,
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});
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__run_test(__TestConfig {
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client_version: 2,
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client_msgs: c.clone(),
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server_version: 2,
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server_msgs: s.clone(),
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parallel: false,
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connections: 1,
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proxy: false,
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});
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__run_test(__TestConfig {
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client_version: 1,
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client_msgs: c.clone(),
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server_version: 1,
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server_msgs: s.clone(),
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parallel: false,
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connections: 1,
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proxy: true,
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});
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__run_test(__TestConfig {
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client_version: 2,
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client_msgs: c,
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server_version: 2,
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server_msgs: s,
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parallel: false,
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connections: 1,
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proxy: true,
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});
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}
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);
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}
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macro_rules! __internal_map_prop {
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(headers: $map:tt) => ({
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#[allow(unused_mut)]
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{
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let mut headers = HeaderMap::new();
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__internal_headers_map!(headers, $map);
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headers
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}
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});
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($name:tt: $val:tt) => ({
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__internal_req_res_prop!($name: $val)
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});
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}
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macro_rules! __internal_eq_prop {
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(headers: $map:tt) => ({
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#[allow(unused_mut)]
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{
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let mut headers = Vec::new();
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__internal_headers_eq!(headers, $map);
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headers
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}
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});
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($name:tt: $val:tt) => ({
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__internal_req_res_prop!($name: $val)
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});
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}
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macro_rules! __internal_req_res_prop {
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(method: $prop_val:expr) => (
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$prop_val
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);
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(status: $prop_val:expr) => (
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StatusCode::from_u16($prop_val).expect("status code")
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);
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($prop_name:ident: $prop_val:expr) => (
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From::from($prop_val)
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)
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}
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macro_rules! __internal_headers_map {
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($headers:ident, { $($name:expr => $val:expr,)* }) => {
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$(
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$headers.insert($name, $val.to_string().parse().expect("header value"));
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)*
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}
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}
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macro_rules! __internal_headers_eq {
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(@pat $name: expr, $pat:pat) => {
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::std::sync::Arc::new(move |__hdrs: &hyper::HeaderMap| {
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match __hdrs.get($name) {
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$pat => (),
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other => panic!("headers[{}] was not {}: {:?}", stringify!($name), stringify!($pat), other),
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}
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}) as ::std::sync::Arc<dyn Fn(&hyper::HeaderMap) + Send + Sync>
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};
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(@val $name: expr, NONE) => {
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__internal_headers_eq!(@pat $name, None);
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};
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(@val $name: expr, SOME) => {
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__internal_headers_eq!(@pat $name, Some(_));
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};
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(@val $name: expr, $val:expr) => ({
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let __val = Option::from($val);
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::std::sync::Arc::new(move |__hdrs: &hyper::HeaderMap| {
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if let Some(ref val) = __val {
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assert_eq!(__hdrs.get($name).expect(stringify!($name)), val.to_string().as_str(), stringify!($name));
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} else {
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assert_eq!(__hdrs.get($name), None, stringify!($name));
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}
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}) as ::std::sync::Arc<dyn Fn(&hyper::HeaderMap) + Send + Sync>
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});
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($headers:ident, { $($name:expr => $val:tt,)* }) => {
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$(
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$headers.push(__internal_headers_eq!(@val $name, $val));
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)*
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}
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}
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#[derive(Clone, Debug)]
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pub struct __CReq {
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pub method: &'static str,
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pub uri: &'static str,
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pub headers: HeaderMap,
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pub body: Vec<u8>,
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}
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impl Default for __CReq {
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fn default() -> __CReq {
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__CReq {
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method: "GET",
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uri: "/",
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headers: HeaderMap::new(),
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body: Vec::new(),
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}
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}
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}
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#[derive(Clone, Default)]
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pub struct __CRes {
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pub status: hyper::StatusCode,
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pub body: Vec<u8>,
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pub headers: __HeadersEq,
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}
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#[derive(Clone)]
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pub struct __SReq {
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pub method: &'static str,
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pub uri: &'static str,
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pub headers: __HeadersEq,
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pub body: Vec<u8>,
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}
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impl Default for __SReq {
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fn default() -> __SReq {
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__SReq {
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method: "GET",
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uri: "/",
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headers: Vec::new(),
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body: Vec::new(),
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}
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}
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}
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#[derive(Clone, Debug, Default)]
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pub struct __SRes {
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pub status: hyper::StatusCode,
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pub body: Vec<u8>,
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pub headers: HeaderMap,
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}
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pub type __HeadersEq = Vec<Arc<dyn Fn(&HeaderMap) + Send + Sync>>;
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pub struct __TestConfig {
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pub client_version: usize,
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pub client_msgs: Vec<(__CReq, __CRes)>,
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pub server_version: usize,
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pub server_msgs: Vec<(__SReq, __SRes)>,
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pub parallel: bool,
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pub connections: usize,
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pub proxy: bool,
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}
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pub fn __run_test(cfg: __TestConfig) {
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let _ = pretty_env_logger::try_init();
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tokio::runtime::Builder::new()
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.enable_io()
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.enable_time()
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.basic_scheduler()
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.build()
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.expect("new rt")
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.block_on(async_test(cfg));
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}
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async fn async_test(cfg: __TestConfig) {
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assert_eq!(cfg.client_version, cfg.server_version);
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let version = if cfg.client_version == 2 {
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Version::HTTP_2
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} else {
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Version::HTTP_11
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};
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let connector = HttpConnector::new();
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let client = Client::builder()
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.keep_alive_timeout(Duration::from_secs(10))
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.http2_only(cfg.client_version == 2)
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.build::<_, Body>(connector);
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let serve_handles = Arc::new(Mutex::new(
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cfg.server_msgs
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));
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let expected_connections = cfg.connections;
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let mut cnt = 0;
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let new_service = make_service_fn(move |_| {
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cnt += 1;
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assert!(
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cnt <= expected_connections,
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"server expected {} connections, received {}",
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expected_connections,
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cnt
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);
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// Move a clone into the service_fn
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let serve_handles = serve_handles.clone();
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future::ok::<_, hyper::Error>(service_fn(move |req: Request<Body>| {
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let (sreq, sres) = serve_handles.lock()
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.unwrap()
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.remove(0);
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assert_eq!(req.uri().path(), sreq.uri, "client path");
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assert_eq!(req.method(), &sreq.method, "client method");
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assert_eq!(req.version(), version, "client version");
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for func in &sreq.headers {
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func(&req.headers());
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}
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let sbody = sreq.body;
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concat(req.into_body())
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.map_ok(move |body| {
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assert_eq!(body.as_ref(), sbody.as_slice(), "client body");
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let mut res = Response::builder()
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.status(sres.status)
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.body(Body::from(sres.body))
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.expect("Response::build");
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*res.headers_mut() = sres.headers;
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res
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})
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}))
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});
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let server = hyper::Server::bind(&SocketAddr::from(([127, 0, 0, 1], 0)))
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.http2_only(cfg.server_version == 2)
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.serve(new_service);
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let mut addr = server.local_addr();
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tokio::task::spawn(server.map(|result| {
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let _ = result.expect("server error");
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}));
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if cfg.proxy {
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let (proxy_addr, proxy) = naive_proxy(ProxyConfig {
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connections: cfg.connections,
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dst: addr,
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version: cfg.server_version,
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});
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tokio::task::spawn(proxy);
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addr = proxy_addr;
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}
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let make_request = Arc::new(move |client: &Client<HttpConnector>, creq: __CReq, cres: __CRes| {
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let uri = format!("http://{}{}", addr, creq.uri);
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let mut req = Request::builder()
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.method(creq.method)
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.uri(uri)
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//.headers(creq.headers)
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.body(creq.body.into())
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.expect("Request::build");
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*req.headers_mut() = creq.headers;
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let cstatus = cres.status;
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let cheaders = cres.headers;
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let cbody = cres.body;
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client.request(req)
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.and_then(move |res| {
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assert_eq!(res.status(), cstatus, "server status");
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assert_eq!(res.version(), version, "server version");
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for func in &cheaders {
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func(&res.headers());
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}
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concat(res.into_body())
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})
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.map_ok(move |body| {
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assert_eq!(body.as_ref(), cbody.as_slice(), "server body");
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})
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.map(|res| res.expect("client error"))
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});
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let client_futures: Pin<Box<dyn Future<Output = ()> + Send>> = if cfg.parallel {
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let mut client_futures = vec![];
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for (creq, cres) in cfg.client_msgs {
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client_futures.push(make_request(&client, creq, cres));
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}
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drop(client);
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Box::pin(future::join_all(client_futures).map(|_| ()))
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} else {
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let mut client_futures: Pin<Box<dyn Future<Output=Client<HttpConnector>> + Send>> =
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Box::pin(future::ready(client));
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for (creq, cres) in cfg.client_msgs {
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let mk_request = make_request.clone();
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client_futures = Box::pin(
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client_futures
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.then(move |client| {
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let fut = mk_request(&client, creq, cres);
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fut.map(move |()| client)
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})
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);
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}
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Box::pin(client_futures.map(|_| ()))
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};
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client_futures.await;
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}
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struct ProxyConfig {
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connections: usize,
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dst: SocketAddr,
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version: usize,
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}
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fn naive_proxy(cfg: ProxyConfig) -> (SocketAddr, impl Future<Output = ()>) {
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let client = Client::builder()
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.keep_alive_timeout(Duration::from_secs(10))
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.http2_only(cfg.version == 2)
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.build_http::<Body>();
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let dst_addr = cfg.dst;
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let max_connections = cfg.connections;
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let counter = AtomicUsize::new(0);
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let srv = Server::bind(&([127, 0, 0, 1], 0).into())
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.serve(make_service_fn(move |_| {
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let prev = counter.fetch_add(1, Ordering::Relaxed);
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assert!(max_connections >= prev + 1, "proxy max connections");
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let client = client.clone();
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future::ok::<_, hyper::Error>(service_fn(move |mut req| {
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let uri = format!("http://{}{}", dst_addr, req.uri().path())
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.parse()
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.expect("proxy new uri parse");
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*req.uri_mut() = uri;
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client.request(req)
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}))
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}));
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let proxy_addr = srv.local_addr();
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(proxy_addr, srv.map(|res| res.expect("proxy error")))
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}
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async fn concat(mut body: Body) -> Result<hyper::Chunk, hyper::Error> {
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let mut vec = Vec::new();
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while let Some(chunk) = body.next().await {
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vec.extend_from_slice(&chunk?);
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}
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Ok(vec.into())
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}
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