Replace isahc with async ureq (#18414)

REplace isahc with ureq everywhere gpui is used.

This should allow us to make http requests without libssl; and avoid a
long-tail of panics caused by ishac.

Release Notes:

- (potentially breaking change) updated our http client

---------

Co-authored-by: Mikayla <mikayla@zed.dev>

crates/extension/Cargo.toml

@@ -56,10 +56,12 @@ task.workspace = true
 serde_json_lenient.workspace = true
 
 [dev-dependencies]
-isahc_http_client.workspace = true
+ureq_client.workspace = true
 ctor.workspace = true
 env_logger.workspace = true
 parking_lot.workspace = true
+reqwest_client.workspace = true
+tokio.workspace = true
 
 fs = { workspace = true, features = ["test-support"] }
 gpui = { workspace = true, features = ["test-support"] }

crates/extension/src/extension_builder.rs

@@ -25,7 +25,7 @@ use wit_component::ComponentEncoder;
 /// Once Rust 1.78 is released, there will be a `wasm32-wasip2` target available, so we will
 /// not need the adapter anymore.
 const RUST_TARGET: &str = "wasm32-wasip1";
-const WASI_ADAPTER_URL: &str =
+pub const WASI_ADAPTER_URL: &str =
     "https://github.com/bytecodealliance/wasmtime/releases/download/v18.0.2/wasi_snapshot_preview1.reactor.wasm";
 
 /// Compiling Tree-sitter parsers from C to WASM requires Clang 17, and a WASM build of libc

crates/extension/src/extension_store_test.rs

@@ -1,3 +1,4 @@
+use crate::extension_builder::WASI_ADAPTER_URL;
 use crate::extension_manifest::SchemaVersion;
 use crate::extension_settings::ExtensionSettings;
 use crate::{
@@ -11,14 +12,14 @@ use collections::BTreeMap;
 use fs::{FakeFs, Fs, RealFs};
 use futures::{io::BufReader, AsyncReadExt, StreamExt};
 use gpui::{Context, SemanticVersion, TestAppContext};
-use http_client::{FakeHttpClient, Response};
+use http_client::{AsyncBody, FakeHttpClient, HttpClient, Response};
 use indexed_docs::IndexedDocsRegistry;
-use isahc_http_client::IsahcHttpClient;
 use language::{LanguageMatcher, LanguageRegistry, LanguageServerBinaryStatus, LanguageServerName};
 use node_runtime::NodeRuntime;
 use parking_lot::Mutex;
 use project::{Project, DEFAULT_COMPLETION_CONTEXT};
 use release_channel::AppVersion;
+use reqwest_client::ReqwestClient;
 use serde_json::json;
 use settings::{Settings as _, SettingsStore};
 use snippet_provider::SnippetRegistry;
@@ -28,6 +29,7 @@ use std::{
     sync::Arc,
 };
 use theme::ThemeRegistry;
+use ureq_client::UreqClient;
 use util::test::temp_tree;
 
 #[cfg(test)]
@@ -576,7 +578,7 @@ async fn test_extension_store_with_test_extension(cx: &mut TestAppContext) {
             std::env::consts::ARCH
         )
     });
-    let builder_client = IsahcHttpClient::new(None, Some(user_agent));
+    let builder_client = Arc::new(UreqClient::new(None, user_agent, cx.executor().clone()));
 
     let extension_store = cx.new_model(|cx| {
         ExtensionStore::new(
@@ -769,6 +771,50 @@ async fn test_extension_store_with_test_extension(cx: &mut TestAppContext) {
     assert!(fs.metadata(&expected_server_path).await.unwrap().is_none());
 }
 
+#[gpui::test]
+async fn test_wasi_adapter_download(cx: &mut TestAppContext) {
+    let client = Arc::new(UreqClient::new(
+        None,
+        "zed-test-wasi-adapter-download".to_string(),
+        cx.executor().clone(),
+    ));
+
+    let mut response = client
+        .get(WASI_ADAPTER_URL, AsyncBody::default(), true)
+        .await
+        .unwrap();
+
+    let mut content = Vec::new();
+    let mut body = BufReader::new(response.body_mut());
+    body.read_to_end(&mut content).await.unwrap();
+
+    assert!(wasmparser::Parser::is_core_wasm(&content));
+    assert_eq!(content.len(), 96801); // Determined by downloading this to my computer
+    wit_component::ComponentEncoder::default()
+        .adapter("wasi_snapshot_preview1", &content)
+        .unwrap();
+}
+
+#[tokio::test]
+async fn test_wasi_adapter_download_tokio() {
+    let client = Arc::new(ReqwestClient::new());
+
+    let mut response = client
+        .get(WASI_ADAPTER_URL, AsyncBody::default(), true)
+        .await
+        .unwrap();
+
+    let mut content = Vec::new();
+    let mut body = BufReader::new(response.body_mut());
+    body.read_to_end(&mut content).await.unwrap();
+
+    assert!(wasmparser::Parser::is_core_wasm(&content));
+    assert_eq!(content.len(), 96801); // Determined by downloading this to my computer
+    wit_component::ComponentEncoder::default()
+        .adapter("wasi_snapshot_preview1", &content)
+        .unwrap();
+}
+
 fn init_test(cx: &mut TestAppContext) {
     cx.update(|cx| {
         let store = SettingsStore::test(cx);