Make new test use local resources only.

components/net/chrome_loader.rs

@@ -0,0 +1,47 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+use file_loader;
+use mime_classifier::MIMEClassifier;
+use net_traits::{LoadConsumer, LoadData, NetworkError};
+use resource_thread::{CancellationListener, send_error};
+use std::path::Path;
+use std::sync::Arc;
+use url::Url;
+use util::resource_files::resources_dir_path;
+
+pub fn resolve_chrome_url(url: &Url) -> Result<Url, ()> {
+    assert_eq!(url.scheme, "chrome");
+    // Skip the initial //
+    let non_relative_scheme_data = &url.non_relative_scheme_data().unwrap()[2..];
+    let relative_path = Path::new(non_relative_scheme_data);
+    // Don't allow chrome URLs access to files outside of the resources directory.
+    if non_relative_scheme_data.find("..").is_some() ||
+       relative_path.is_absolute() ||
+       relative_path.has_root() {
+        return Err(());
+    }
+
+    let mut path = resources_dir_path();
+    path.push(non_relative_scheme_data);
+    assert!(path.exists());
+    return Ok(Url::from_file_path(&*path).unwrap());
+}
+
+pub fn factory(mut load_data: LoadData,
+               start_chan: LoadConsumer,
+               classifier: Arc<MIMEClassifier>,
+               cancel_listener: CancellationListener) {
+    let file_url = match resolve_chrome_url(&load_data.url) {
+        Ok(url) => url,
+        Err(_) => {
+            send_error(load_data.url,
+                       NetworkError::Internal("Invalid chrome URL.".to_owned()),
+                       start_chan);
+            return;
+        }
+    };
+    load_data.url = file_url;
+    file_loader::factory(load_data, start_chan, classifier, cancel_listener)
+}