Implement Subresource Integrity

Implemented response validation part of
https://w3c.github.io/webappsec-subresource-integrity/.
Implemented step eighteen of the main fetch. If a request has integrity
metadata, then following steps are performed
*Wait for response body
*If the response does not have a termination reason and response does not
match request’s integrity metadata, set response to a
network error.# Please enter the commit message for your changes. Lines starting

1 files changed, 3 insertions, 2 deletions

diff --git a/components/script/stylesheet_loader.rs b/components/script/stylesheet_loader.rs
index 28c5e86b6b5..db70c9e8ebb 100644
--- a/components/script/stylesheet_loader.rs
+++ b/components/script/stylesheet_loader.rs
@@ -193,7 +193,7 @@ impl<'a> StylesheetLoader<'a> {
 }
 
 impl<'a> StylesheetLoader<'a> {
-    pub fn load(&self, source: StylesheetContextSource) {
+    pub fn load(&self, source: StylesheetContextSource, integrity_metadata: String) {
         let url = source.url();
         let document = document_from_node(self.elem);
         let context = Arc::new(Mutex::new(StylesheetContext {
@@ -234,6 +234,7 @@ impl<'a> StylesheetLoader<'a> {
             pipeline_id: Some(self.elem.global().pipeline_id()),
             referrer_url: Some(document.url()),
             referrer_policy: referrer_policy,
+            integrity_metadata: integrity_metadata,
             .. RequestInit::default()
         };
 
@@ -243,6 +244,6 @@ impl<'a> StylesheetLoader<'a> {
 
 impl<'a> StyleStylesheetLoader for StylesheetLoader<'a> {
     fn request_stylesheet(&self, import: &Arc<RwLock<ImportRule>>) {
-        self.load(StylesheetContextSource::Import(import.clone()))
+        self.load(StylesheetContextSource::Import(import.clone()), "".to_owned())
     }
 }