Update http crate name (#15041)

Release Notes:

- N/A

crates/http_client/src/http_client.rs

@@ -0,0 +1,319 @@
+pub mod github;
+
+pub use anyhow::{anyhow, Result};
+use derive_more::Deref;
+use futures::future::BoxFuture;
+use futures_lite::FutureExt;
+use isahc::config::{Configurable, RedirectPolicy};
+pub use isahc::{
+    http::{Method, StatusCode, Uri},
+    AsyncBody, Error, HttpClient as IsahcHttpClient, Request, Response,
+};
+#[cfg(feature = "test-support")]
+use std::fmt;
+use std::{
+    sync::{Arc, Mutex},
+    time::Duration,
+};
+pub use url::Url;
+
+pub trait HttpClient: Send + Sync {
+    fn send(
+        &self,
+        req: Request<AsyncBody>,
+    ) -> BoxFuture<'static, Result<Response<AsyncBody>, Error>>;
+
+    fn get<'a>(
+        &'a self,
+        uri: &str,
+        body: AsyncBody,
+        follow_redirects: bool,
+    ) -> BoxFuture<'a, Result<Response<AsyncBody>, Error>> {
+        let request = isahc::Request::builder()
+            .redirect_policy(if follow_redirects {
+                RedirectPolicy::Follow
+            } else {
+                RedirectPolicy::None
+            })
+            .method(Method::GET)
+            .uri(uri)
+            .body(body);
+        match request {
+            Ok(request) => self.send(request),
+            Err(error) => async move { Err(error.into()) }.boxed(),
+        }
+    }
+
+    fn post_json<'a>(
+        &'a self,
+        uri: &str,
+        body: AsyncBody,
+    ) -> BoxFuture<'a, Result<Response<AsyncBody>, Error>> {
+        let request = isahc::Request::builder()
+            .method(Method::POST)
+            .uri(uri)
+            .header("Content-Type", "application/json")
+            .body(body);
+        match request {
+            Ok(request) => self.send(request),
+            Err(error) => async move { Err(error.into()) }.boxed(),
+        }
+    }
+
+    fn proxy(&self) -> Option<&Uri>;
+}
+
+/// An [`HttpClient`] that may have a proxy.
+#[derive(Deref)]
+pub struct HttpClientWithProxy {
+    #[deref]
+    client: Arc<dyn HttpClient>,
+    proxy: Option<Uri>,
+}
+
+impl HttpClientWithProxy {
+    /// Returns a new [`HttpClientWithProxy`] with the given proxy URL.
+    pub fn new(proxy_url: Option<String>) -> Self {
+        let proxy_url = proxy_url
+            .and_then(|input| {
+                input
+                    .parse::<Uri>()
+                    .inspect_err(|e| log::error!("Error parsing proxy settings: {}", e))
+                    .ok()
+            })
+            .or_else(read_proxy_from_env);
+
+        Self {
+            client: client(proxy_url.clone()),
+            proxy: proxy_url,
+        }
+    }
+}
+
+impl HttpClient for HttpClientWithProxy {
+    fn send(
+        &self,
+        req: Request<AsyncBody>,
+    ) -> BoxFuture<'static, Result<Response<AsyncBody>, Error>> {
+        self.client.send(req)
+    }
+
+    fn proxy(&self) -> Option<&Uri> {
+        self.proxy.as_ref()
+    }
+}
+
+impl HttpClient for Arc<HttpClientWithProxy> {
+    fn send(
+        &self,
+        req: Request<AsyncBody>,
+    ) -> BoxFuture<'static, Result<Response<AsyncBody>, Error>> {
+        self.client.send(req)
+    }
+
+    fn proxy(&self) -> Option<&Uri> {
+        self.proxy.as_ref()
+    }
+}
+
+/// An [`HttpClient`] that has a base URL.
+pub struct HttpClientWithUrl {
+    base_url: Mutex<String>,
+    client: HttpClientWithProxy,
+}
+
+impl HttpClientWithUrl {
+    /// Returns a new [`HttpClientWithUrl`] with the given base URL.
+    pub fn new(base_url: impl Into<String>, proxy_url: Option<String>) -> Self {
+        let client = HttpClientWithProxy::new(proxy_url);
+
+        Self {
+            base_url: Mutex::new(base_url.into()),
+            client,
+        }
+    }
+
+    /// Returns the base URL.
+    pub fn base_url(&self) -> String {
+        self.base_url
+            .lock()
+            .map_or_else(|_| Default::default(), |url| url.clone())
+    }
+
+    /// Sets the base URL.
+    pub fn set_base_url(&self, base_url: impl Into<String>) {
+        let base_url = base_url.into();
+        self.base_url
+            .lock()
+            .map(|mut url| {
+                *url = base_url;
+            })
+            .ok();
+    }
+
+    /// Builds a URL using the given path.
+    pub fn build_url(&self, path: &str) -> String {
+        format!("{}{}", self.base_url(), path)
+    }
+
+    /// Builds a Zed API URL using the given path.
+    pub fn build_zed_api_url(&self, path: &str, query: &[(&str, &str)]) -> Result<Url> {
+        let base_url = self.base_url();
+        let base_api_url = match base_url.as_ref() {
+            "https://zed.dev" => "https://api.zed.dev",
+            "https://staging.zed.dev" => "https://api-staging.zed.dev",
+            "http://localhost:3000" => "http://localhost:8080",
+            other => other,
+        };
+
+        Ok(Url::parse_with_params(
+            &format!("{}{}", base_api_url, path),
+            query,
+        )?)
+    }
+}
+
+impl HttpClient for Arc<HttpClientWithUrl> {
+    fn send(
+        &self,
+        req: Request<AsyncBody>,
+    ) -> BoxFuture<'static, Result<Response<AsyncBody>, Error>> {
+        self.client.send(req)
+    }
+
+    fn proxy(&self) -> Option<&Uri> {
+        self.client.proxy.as_ref()
+    }
+}
+
+impl HttpClient for HttpClientWithUrl {
+    fn send(
+        &self,
+        req: Request<AsyncBody>,
+    ) -> BoxFuture<'static, Result<Response<AsyncBody>, Error>> {
+        self.client.send(req)
+    }
+
+    fn proxy(&self) -> Option<&Uri> {
+        self.client.proxy.as_ref()
+    }
+}
+
+pub fn client(proxy: Option<Uri>) -> Arc<dyn HttpClient> {
+    Arc::new(HttpClientWithProxy {
+        client: Arc::new(
+            isahc::HttpClient::builder()
+                .connect_timeout(Duration::from_secs(5))
+                .low_speed_timeout(100, Duration::from_secs(5))
+                .proxy(proxy.clone())
+                .build()
+                .unwrap(),
+        ),
+        proxy,
+    })
+}
+
+fn read_proxy_from_env() -> Option<Uri> {
+    const ENV_VARS: &[&str] = &[
+        "ALL_PROXY",
+        "all_proxy",
+        "HTTPS_PROXY",
+        "https_proxy",
+        "HTTP_PROXY",
+        "http_proxy",
+    ];
+
+    for var in ENV_VARS {
+        if let Ok(env) = std::env::var(var) {
+            return env.parse::<Uri>().ok();
+        }
+    }
+
+    None
+}
+
+impl HttpClient for isahc::HttpClient {
+    fn send(
+        &self,
+        req: Request<AsyncBody>,
+    ) -> BoxFuture<'static, Result<Response<AsyncBody>, Error>> {
+        let client = self.clone();
+        Box::pin(async move { client.send_async(req).await })
+    }
+
+    fn proxy(&self) -> Option<&Uri> {
+        None
+    }
+}
+
+#[cfg(feature = "test-support")]
+type FakeHttpHandler = Box<
+    dyn Fn(Request<AsyncBody>) -> BoxFuture<'static, Result<Response<AsyncBody>, Error>>
+        + Send
+        + Sync
+        + 'static,
+>;
+
+#[cfg(feature = "test-support")]
+pub struct FakeHttpClient {
+    handler: FakeHttpHandler,
+}
+
+#[cfg(feature = "test-support")]
+impl FakeHttpClient {
+    pub fn create<Fut, F>(handler: F) -> Arc<HttpClientWithUrl>
+    where
+        Fut: futures::Future<Output = Result<Response<AsyncBody>, Error>> + Send + 'static,
+        F: Fn(Request<AsyncBody>) -> Fut + Send + Sync + 'static,
+    {
+        Arc::new(HttpClientWithUrl {
+            base_url: Mutex::new("http://test.example".into()),
+            client: HttpClientWithProxy {
+                client: Arc::new(Self {
+                    handler: Box::new(move |req| Box::pin(handler(req))),
+                }),
+                proxy: None,
+            },
+        })
+    }
+
+    pub fn with_404_response() -> Arc<HttpClientWithUrl> {
+        Self::create(|_| async move {
+            Ok(Response::builder()
+                .status(404)
+                .body(Default::default())
+                .unwrap())
+        })
+    }
+
+    pub fn with_200_response() -> Arc<HttpClientWithUrl> {
+        Self::create(|_| async move {
+            Ok(Response::builder()
+                .status(200)
+                .body(Default::default())
+                .unwrap())
+        })
+    }
+}
+
+#[cfg(feature = "test-support")]
+impl fmt::Debug for FakeHttpClient {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        f.debug_struct("FakeHttpClient").finish()
+    }
+}
+
+#[cfg(feature = "test-support")]
+impl HttpClient for FakeHttpClient {
+    fn send(
+        &self,
+        req: Request<AsyncBody>,
+    ) -> BoxFuture<'static, Result<Response<AsyncBody>, Error>> {
+        let future = (self.handler)(req);
+        Box::pin(async move { future.await.map(Into::into) })
+    }
+
+    fn proxy(&self) -> Option<&Uri> {
+        None
+    }
+}