feat: HTTP client

Cargo.toml

@@ -11,6 +11,8 @@ members = [
     "compio-dispatcher",
     "compio-io",
     "compio-tls",
+    "compio-http",
+    "compio-http-client",
 ]
 resolver = "2"
 
@@ -31,19 +33,29 @@ compio-io = { path = "./compio-io", version = "0.1.0" }
 compio-net = { path = "./compio-net", version = "0.2.0" }
 compio-signal = { path = "./compio-signal", version = "0.1.1" }
 compio-dispatcher = { path = "./compio-dispatcher", version = "0.1.0" }
+compio-tls = { path = "./compio-tls", version = "0.1.0" }
+compio-http = { path = "./compio-http", version = "0.1.0" }
 
 cfg-if = "1.0.0"
 crossbeam-channel = "0.5.8"
 crossbeam-queue = "0.3.8"
+futures-channel = "0.3.29"
 futures-util = "0.3.29"
 libc = "0.2.149"
 nix = "0.27.1"
 once_cell = "1.18.0"
 os_pipe = "1.1.4"
 paste = "1.0.14"
+send_wrapper = "0.6"
 slab = "0.4.9"
 socket2 = "0.5.5"
 tempfile = "3.8.1"
 tokio = "1.33.0"
 widestring = "1.0.2"
 windows-sys = "0.48.0"
+
+native-tls = "0.2.11"
+rustls = "0.21.8"
+rustls-native-certs = "0.6.3"
+
+hyper = "0.14"

compio-buf/src/lib.rs

@@ -6,7 +6,7 @@
 
 #![cfg_attr(docsrs, feature(doc_cfg, doc_auto_cfg))]
 #![cfg_attr(feature = "allocator_api", feature(allocator_api))]
-#![cfg_attr(feature = "read_buf", feature(read_buf))]
+#![cfg_attr(feature = "read_buf", feature(read_buf, core_io_borrowed_buf))]
 #![cfg_attr(feature = "try_trait_v2", feature(try_trait_v2, try_trait_v2_residual))]
 #![warn(missing_docs)]
 

compio-http-client/Cargo.toml

@@ -0,0 +1,47 @@
+[package]
+name = "compio-http-client"
+version = "0.1.0"
+categories = ["asynchronous", "network-programming"]
+keywords = ["async", "net"]
+edition = { workspace = true }
+authors = { workspace = true }
+readme = { workspace = true }
+license = { workspace = true }
+repository = { workspace = true }
+
+[dependencies]
+compio-buf = { workspace = true, features = ["bytes"] }
+compio-runtime = { workspace = true, features = ["time"] }
+compio-tls = { workspace = true }
+compio-http = { workspace = true, features = ["client"] }
+
+http = "0.2"
+hyper = { workspace = true, features = ["client", "http1"] }
+
+base64 = "0.21"
+encoding_rs = "0.8"
+mime = "0.3"
+serde = "1"
+serde_json = { version = "1", optional = true }
+serde_urlencoded = "0.7"
+thiserror = "1"
+url = "2"
+
+[dev-dependencies]
+compio-net = { workspace = true, features = ["runtime"] }
+compio-macros = { workspace = true }
+compio-http = { workspace = true, features = ["server"] }
+
+futures-channel = { workspace = true }
+hyper = { workspace = true, features = ["server"] }
+
+[features]
+default = ["native-tls"]
+native-tls = ["compio-http/native-tls"]
+rustls = ["compio-http/rustls"]
+vendored = ["compio-http/vendored"]
+json = ["dep:serde_json"]
+all = ["json", "native-tls", "rustls", "compio-http/all"]
+
+read_buf = ["compio-http/read_buf"]
+nightly = ["read_buf"]

compio-http-client/examples/client.rs

@@ -0,0 +1,8 @@
+use compio_http_client::Client;
+
+#[compio_macros::main]
+async fn main() {
+    let client = Client::new();
+    let response = client.get("https://www.example.com/").send().await.unwrap();
+    println!("{}", response.text().await.unwrap());
+}

compio-http-client/src/client.rs

@@ -0,0 +1,159 @@
+use std::rc::Rc;
+
+use compio_http::{CompioExecutor, Connector, TlsBackend};
+use hyper::{Body, HeaderMap, Method, Uri};
+
+use crate::{IntoUrl, Request, RequestBuilder, Response, Result};
+
+/// An asynchronous `Client` to make Requests with.
+#[derive(Debug, Clone)]
+pub struct Client {
+    client: Rc<ClientRef>,
+}
+
+impl Client {
+    /// Create a client with default config.
+    #[allow(clippy::new_without_default)]
+    pub fn new() -> Self {
+        ClientBuilder::new().build()
+    }
+
+    /// Creates a `ClientBuilder` to configure a `Client`.
+    ///
+    /// This is the same as `ClientBuilder::new()`.
+    pub fn builder() -> ClientBuilder {
+        ClientBuilder::new()
+    }
+
+    /// Send a request and wait for a response.
+    pub async fn execute(&self, request: Request) -> Result<Response> {
+        let (method, url, headers, body, timeout, version) = request.pieces();
+        let mut request = hyper::Request::builder()
+            .method(method)
+            .uri(
+                url.as_str()
+                    .parse::<Uri>()
+                    .expect("a parsed Url should always be a valid Uri"),
+            )
+            .version(version)
+            .body(body.unwrap_or_else(Body::empty))?;
+        *request.headers_mut() = self.client.headers.clone();
+        crate::util::replace_headers(request.headers_mut(), headers);
+
+        let future = self.client.client.request(request);
+        let res = if let Some(timeout) = timeout {
+            compio_runtime::time::timeout(timeout, future)
+                .await
+                .map_err(|_| crate::Error::Timeout)??
+        } else {
+            future.await?
+        };
+        Ok(Response::new(res, url))
+    }
+
+    /// Send a request with method and url.
+    pub fn request<U: IntoUrl>(&self, method: Method, url: U) -> RequestBuilder {
+        RequestBuilder::new(
+            self.clone(),
+            url.into_url().map(|url| Request::new(method, url)),
+        )
+    }
+
+    /// Convenience method to make a `GET` request to a URL.
+    pub fn get<U: IntoUrl>(&self, url: U) -> RequestBuilder {
+        self.request(Method::GET, url)
+    }
+
+    /// Convenience method to make a `POST` request to a URL.
+    pub fn post<U: IntoUrl>(&self, url: U) -> RequestBuilder {
+        self.request(Method::POST, url)
+    }
+
+    /// Convenience method to make a `PUT` request to a URL.
+    pub fn put<U: IntoUrl>(&self, url: U) -> RequestBuilder {
+        self.request(Method::PUT, url)
+    }
+
+    /// Convenience method to make a `PATCH` request to a URL.
+    pub fn patch<U: IntoUrl>(&self, url: U) -> RequestBuilder {
+        self.request(Method::PATCH, url)
+    }
+
+    /// Convenience method to make a `DELETE` request to a URL.
+    pub fn delete<U: IntoUrl>(&self, url: U) -> RequestBuilder {
+        self.request(Method::DELETE, url)
+    }
+
+    /// Convenience method to make a `HEAD` request to a URL.
+    pub fn head<U: IntoUrl>(&self, url: U) -> RequestBuilder {
+        self.request(Method::HEAD, url)
+    }
+}
+
+#[derive(Debug)]
+struct ClientRef {
+    client: hyper::Client<Connector, Body>,
+    headers: HeaderMap,
+}
+
+/// A `ClientBuilder` can be used to create a `Client` with custom
+/// configuration.
+#[derive(Debug)]
+#[must_use]
+pub struct ClientBuilder {
+    headers: HeaderMap,
+    tls: TlsBackend,
+}
+
+impl Default for ClientBuilder {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
+impl ClientBuilder {
+    /// Constructs a new `ClientBuilder`.
+    pub fn new() -> Self {
+        Self {
+            headers: HeaderMap::new(),
+            tls: TlsBackend::default(),
+        }
+    }
+
+    /// Returns a `Client` that uses this `ClientBuilder` configuration.
+    pub fn build(self) -> Client {
+        let client = hyper::Client::builder()
+            .executor(CompioExecutor)
+            .set_host(true)
+            .build(Connector::new(self.tls));
+        let client_ref = ClientRef {
+            client,
+            headers: self.headers,
+        };
+        Client {
+            client: Rc::new(client_ref),
+        }
+    }
+
+    /// Set the default headers for every request.
+    pub fn default_headers(mut self, headers: HeaderMap) -> Self {
+        for (key, value) in headers.iter() {
+            self.headers.insert(key, value.clone());
+        }
+        self
+    }
+
+    /// Force using the native TLS backend.
+    #[cfg(feature = "native-tls")]
+    pub fn use_native_tls(mut self) -> Self {
+        self.tls = TlsBackend::NativeTls;
+        self
+    }
+
+    /// Force using the Rustls TLS backend.
+    #[cfg(feature = "rustls")]
+    pub fn use_rustls(mut self) -> Self {
+        self.tls = TlsBackend::Rustls;
+        self
+    }
+}

compio-http-client/src/into_url.rs

@@ -0,0 +1,36 @@
+use url::Url;
+
+/// A trait to try to convert some type into a [`Url`].
+pub trait IntoUrl {
+    /// Besides parsing as a valid [`Url`], the [`Url`] must be a valid
+    /// `http::Uri`, in that it makes sense to use in a network request.
+    fn into_url(self) -> crate::Result<Url>;
+}
+
+impl IntoUrl for Url {
+    fn into_url(self) -> crate::Result<Url> {
+        if self.has_host() {
+            Ok(self)
+        } else {
+            Err(crate::Error::BadScheme(self))
+        }
+    }
+}
+
+impl<'a> IntoUrl for &'a str {
+    fn into_url(self) -> crate::Result<Url> {
+        Ok(Url::parse(self)?)
+    }
+}
+
+impl<'a> IntoUrl for &'a String {
+    fn into_url(self) -> crate::Result<Url> {
+        (&**self).into_url()
+    }
+}
+
+impl IntoUrl for String {
+    fn into_url(self) -> crate::Result<Url> {
+        (&*self).into_url()
+    }
+}

compio-http-client/src/lib.rs

@@ -0,0 +1,52 @@
+//! A high level HTTP client based on compio.
+
+#![warn(missing_docs)]
+#![cfg_attr(docsrs, feature(doc_cfg, doc_auto_cfg))]
+
+mod client;
+pub use client::*;
+
+mod request;
+pub use request::*;
+
+mod response;
+pub use response::*;
+
+mod into_url;
+pub use into_url::*;
+
+mod util;
+
+/// The error type used in `compio-http`.
+#[derive(Debug, thiserror::Error)]
+#[non_exhaustive]
+pub enum Error {
+    /// The request is timeout.
+    #[error("request timeout")]
+    Timeout,
+    /// Bad scheme.
+    #[error("bad scheme: {0}")]
+    BadScheme(url::Url),
+    /// IO error occurs.
+    #[error("system error: {0}")]
+    System(#[from] std::io::Error),
+    /// HTTP related parse error.
+    #[error("`http` error: {0}")]
+    Http(#[from] http::Error),
+    /// Hyper error.
+    #[error("`hyper` error: {0}")]
+    Hyper(#[from] hyper::Error),
+    /// URL parse error.
+    #[error("url parse error: {0}")]
+    UrlParse(#[from] url::ParseError),
+    /// URL encoding error.
+    #[error("url encode error: {0}")]
+    UrlEncoded(#[from] serde_urlencoded::ser::Error),
+    /// JSON serialization error.
+    #[cfg(feature = "json")]
+    #[error("json error: {0}")]
+    Json(#[from] serde_json::Error),
+}
+
+/// The result type used in `compio-http`.
+pub type Result<T> = std::result::Result<T, Error>;