LibWeb: Add Origin concept (protocol, host, port tuple)

Every Document now has an Origin, found via Document::origin().
It's based on the URL of the document.

This will be used to implement things like the same-origin policy.

2 files changed, 13 insertions, 2 deletions

diff --git a/Libraries/LibWeb/DOM/Document.cpp b/Libraries/LibWeb/DOM/Document.cpp
index 43c881ce8f..6162deaac2 100644
--- a/Libraries/LibWeb/DOM/Document.cpp
+++ b/Libraries/LibWeb/DOM/Document.cpp
@@ -52,14 +52,16 @@
 #include <LibWeb/HtmlView.h>
 #include <LibWeb/Layout/LayoutDocument.h>
 #include <LibWeb/Layout/LayoutTreeBuilder.h>
+#include <LibWeb/Origin.h>
 #include <LibWeb/Parser/CSSParser.h>
 #include <stdio.h>
 
 namespace Web {
 
-Document::Document()
+Document::Document(const URL& url)
     : ParentNode(*this, NodeType::DOCUMENT_NODE)
     , m_style_resolver(make<StyleResolver>(*this))
+    , m_url(url)
     , m_window(Window::create_with_document(*this))
 {
     m_style_update_timer = Core::Timer::create_single_shot(0, [this] {
@@ -71,6 +73,13 @@ Document::~Document()
 {
 }
 
+Origin Document::origin() const
+{
+    if (!m_url.is_valid())
+        return {};
+    return { m_url.protocol(), m_url.host(), m_url.port() };
+}
+
 void Document::schedule_style_update()
 {
     if (m_style_update_timer->is_active())
diff --git a/Libraries/LibWeb/DOM/Document.h b/Libraries/LibWeb/DOM/Document.h
index 18110088ad..66161a8742 100644
--- a/Libraries/LibWeb/DOM/Document.h
+++ b/Libraries/LibWeb/DOM/Document.h
@@ -48,12 +48,14 @@ class Document
 public:
     using WrapperType = Bindings::DocumentWrapper;
 
-    Document();
+    explicit Document(const URL& = {});
     virtual ~Document() override;
 
     void set_url(const URL& url) { m_url = url; }
     const URL& url() const { return m_url; }
 
+    Origin origin() const;
+
     URL complete_url(const String&) const;
 
     void fixup();