1 files changed, 49 insertions, 0 deletions
diff --git a/src/http.rs b/src/http.rs
new file mode 100644
index 000000000..5907b35ed
--- /dev/null
+++ b/src/http.rs
@@ -0,0 +1,49 @@
+// Copyright 2018 the Deno authors. All rights reserved. MIT license.
+
+use errors::DenoResult;
+
+use futures::Future;
+use futures::Stream;
+use hyper;
+use hyper::client::HttpConnector;
+use hyper::Uri;
+use hyper_rustls;
+
+type Connector = hyper_rustls::HttpsConnector<HttpConnector>;
+
+lazy_static! {
+  static ref CONNECTOR: Connector = {
+    let num_dns_threads = 4;
+    Connector::new(num_dns_threads)
+  };
+}
+
+pub fn get_client() -> Client<Connector, hyper::Body> {
+  // TODO use Hyper's connection pool.
+  let c = CONNECTOR.clone();
+  Client::builder().build(c)
+}
+
+// The CodeFetch message is used to load HTTP javascript resources and expects a
+// synchronous response, this utility method supports that.
+pub fn fetch_sync_string(module_name: &str) -> DenoResult<String> {
+  let url = module_name.parse::<Uri>().unwrap();
+  let client = get_client();
+
+  // TODO Use Deno's RT
+  let mut rt = Runtime::new().unwrap();
+  let body = rt.block_on(
+    client
+      .get(url)
+      .and_then(|response| response.into_body().concat2()),
+  )?;
+  Ok(String::from_utf8(body.to_vec()).unwrap())
+}
+
+#[test]
+fn test_fetch_sync_string() {
+  // Relies on external http server. See tools/http_server.py
+  let p = fetch_sync_string("http://localhost:4545/package.json").unwrap();
+  println!("package.json len {}", p.len());
+  assert!(p.len() > 1);
+}