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Add meta-referrer support for documents

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This commit is contained in:
Rebecca 2016-05-21 18:02:45 -04:00
parent d0f5a5fd74
commit 687d0cd7c3
56 changed files with 136 additions and 263 deletions
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36
components/script/dom/htmlheadelement.rs
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@ -2,13 +2,16 @@
* 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 dom::bindings::codegen::Bindings::DocumentBinding::DocumentMethods;
use dom::bindings::codegen::Bindings::HTMLHeadElementBinding;
use dom::bindings::inheritance::Castable;
use dom::bindings::js::Root;
use dom::bindings::js::{Root, RootedReference};
use dom::bindings::str::DOMString;
use dom::document::Document;
use dom::document::{Document, determine_policy_for_token};
use dom::element::Element;
use dom::htmlelement::HTMLElement;
use dom::node::Node;
use dom::htmlmetaelement::HTMLMetaElement;
use dom::node::{Node, document_from_node};
use dom::userscripts::load_script;
use dom::virtualmethods::VirtualMethods;
use string_cache::Atom;
@ -34,6 +37,33 @@ impl HTMLHeadElement {
let element = HTMLHeadElement::new_inherited(localName, prefix, document);
Node::reflect_node(box element, document, HTMLHeadElementBinding::Wrap)
}
/// https://html.spec.whatwg.org/multipage/#meta-referrer
pub fn set_document_referrer(&self) {
let doc = document_from_node(self);
if doc.GetHead().r() != Some(self) {
return;
}
let node = self.upcast::<Node>();
let candidates = node.traverse_preorder()
.filter_map(Root::downcast::<Element>)
.filter(|elem| elem.is::<HTMLMetaElement>())
.filter(|elem| elem.get_string_attribute(&atom!("name")) == "referrer")
.filter(|elem| elem.get_attribute(&ns!(), &atom!("content")).is_some());
for meta in candidates {
if let Some(content) = meta.get_attribute(&ns!(), &atom!("content")).r() {
let content = content.value();
let content_val = content.trim();
if !content_val.is_empty() {
doc.set_referrer_policy(determine_policy_for_token(content_val));
return;
}
}
}
}
}
impl VirtualMethods for HTMLHeadElement {