Browser+LibWeb+WebContent: Track the source of document.cookie requests

To implement the HttpOnly attribute, the CookieJar needs to know where a
request originated from. Namely, it needs to distinguish between HTTP /
non-HTTP (i.e. JavaScript) requests. When the HttpOnly attribute is set,
requests from JavaScript are to be blocked.

Userland/Libraries/LibWeb/Cookie/Cookie.h

@@ -31,6 +31,11 @@
 
 namespace Web::Cookie {
 
+enum class Source {
+    NonHttp,
+    Http,
+};
+
 struct Cookie {
     String name;
     String value;

Userland/Libraries/LibWeb/DOM/Document.cpp

@@ -821,17 +821,17 @@ void Document::completely_finish_loading()
     dispatch_event(DOM::Event::create(HTML::EventNames::load));
 }
 
-String Document::cookie()
+String Document::cookie(Cookie::Source source)
 {
     if (auto* page = this->page())
-        return page->client().page_did_request_cookie(m_url);
+        return page->client().page_did_request_cookie(m_url, source);
     return {};
 }
 
-void Document::set_cookie(String cookie)
+void Document::set_cookie(String cookie, Cookie::Source source)
 {
     if (auto* page = this->page())
-        page->client().page_did_set_cookie(m_url, cookie);
+        page->client().page_did_set_cookie(m_url, cookie, source);
 }
 
 }

Userland/Libraries/LibWeb/DOM/Document.h

@@ -40,6 +40,7 @@
 #include <LibWeb/CSS/CSSStyleSheet.h>
 #include <LibWeb/CSS/StyleResolver.h>
 #include <LibWeb/CSS/StyleSheetList.h>
+#include <LibWeb/Cookie/Cookie.h>
 #include <LibWeb/DOM/DOMImplementation.h>
 #include <LibWeb/DOM/ExceptionOr.h>
 #include <LibWeb/DOM/NonElementParentNode.h>
@@ -73,8 +74,8 @@ public:
 
     virtual ~Document() override;
 
-    String cookie();
-    void set_cookie(String);
+    String cookie(Cookie::Source = Cookie::Source::NonHttp);
+    void set_cookie(String, Cookie::Source = Cookie::Source::NonHttp);
 
     bool should_invalidate_styles_on_attribute_changes() const { return m_should_invalidate_styles_on_attribute_changes; }
     void set_should_invalidate_styles_on_attribute_changes(bool b) { m_should_invalidate_styles_on_attribute_changes = b; }

Userland/Libraries/LibWeb/Forward.h

@@ -30,6 +30,7 @@
 namespace Web::Cookie {
 struct Cookie;
 struct ParsedCookie;
+enum class Source;
 }
 
 namespace Web::CSS {

Userland/Libraries/LibWeb/InProcessWebView.cpp

@@ -433,17 +433,17 @@ String InProcessWebView::page_did_request_prompt(const String& message, const St
     return {};
 }
 
-String InProcessWebView::page_did_request_cookie(const URL& url)
+String InProcessWebView::page_did_request_cookie(const URL& url, Cookie::Source source)
 {
     if (on_get_cookie)
-        return on_get_cookie(url);
+        return on_get_cookie(url, source);
     return {};
 }
 
-void InProcessWebView::page_did_set_cookie(const URL& url, const String& cookie)
+void InProcessWebView::page_did_set_cookie(const URL& url, const String& cookie, Cookie::Source source)
 {
     if (on_set_cookie)
-        on_set_cookie(url, cookie);
+        on_set_cookie(url, cookie, source);
 }
 
 }

Userland/Libraries/LibWeb/InProcessWebView.h

@@ -111,8 +111,8 @@ private:
     virtual void page_did_request_alert(const String&) override;
     virtual bool page_did_request_confirm(const String&) override;
     virtual String page_did_request_prompt(const String&, const String&) override;
-    virtual String page_did_request_cookie(const URL&) override;
-    virtual void page_did_set_cookie(const URL&, const String&) override;
+    virtual String page_did_request_cookie(const URL&, Cookie::Source) override;
+    virtual void page_did_set_cookie(const URL&, const String&, Cookie::Source) override;
 
     void layout_and_sync_size();
 

Userland/Libraries/LibWeb/Loader/FrameLoader.cpp

@@ -277,7 +277,7 @@ void FrameLoader::resource_did_load()
     // FIXME: Support multiple instances of the Set-Cookie response header.
     auto set_cookie = resource()->response_headers().get("Set-Cookie");
     if (set_cookie.has_value())
-        document->set_cookie(set_cookie.value());
+        document->set_cookie(set_cookie.value(), Cookie::Source::Http);
 
     if (!url.fragment().is_empty())
         frame().scroll_to_anchor(url.fragment());

Userland/Libraries/LibWeb/OutOfProcessWebView.cpp

@@ -365,17 +365,17 @@ void OutOfProcessWebView::notify_server_did_change_favicon(const Gfx::Bitmap& fa
         on_favicon_change(favicon);
 }
 
-String OutOfProcessWebView::notify_server_did_request_cookie(Badge<WebContentClient>, const URL& url)
+String OutOfProcessWebView::notify_server_did_request_cookie(Badge<WebContentClient>, const URL& url, Cookie::Source source)
 {
     if (on_get_cookie)
-        return on_get_cookie(url);
+        return on_get_cookie(url, source);
     return {};
 }
 
-void OutOfProcessWebView::notify_server_did_set_cookie(Badge<WebContentClient>, const URL& url, const String& cookie)
+void OutOfProcessWebView::notify_server_did_set_cookie(Badge<WebContentClient>, const URL& url, const String& cookie, Cookie::Source source)
 {
     if (on_set_cookie)
-        on_set_cookie(url, cookie);
+        on_set_cookie(url, cookie, source);
 }
 
 void OutOfProcessWebView::did_scroll()

Userland/Libraries/LibWeb/OutOfProcessWebView.h

@@ -79,8 +79,8 @@ public:
     void notify_server_did_get_source(const URL& url, const String& source);
     void notify_server_did_js_console_output(const String& method, const String& line);
     void notify_server_did_change_favicon(const Gfx::Bitmap& favicon);
-    String notify_server_did_request_cookie(Badge<WebContentClient>, const URL& url);
-    void notify_server_did_set_cookie(Badge<WebContentClient>, const URL& url, const String& cookie);
+    String notify_server_did_request_cookie(Badge<WebContentClient>, const URL& url, Cookie::Source source);
+    void notify_server_did_set_cookie(Badge<WebContentClient>, const URL& url, const String& cookie, Cookie::Source source);
 
 private:
     OutOfProcessWebView();

Userland/Libraries/LibWeb/Page/Page.h

@@ -111,8 +111,8 @@ public:
     virtual void page_did_request_alert(const String&) { }
     virtual bool page_did_request_confirm(const String&) { return false; }
     virtual String page_did_request_prompt(const String&, const String&) { return {}; }
-    virtual String page_did_request_cookie(const URL&) { return {}; }
-    virtual void page_did_set_cookie(const URL&, const String&) { }
+    virtual String page_did_request_cookie(const URL&, Cookie::Source) { return {}; }
+    virtual void page_did_set_cookie(const URL&, const String&, Cookie::Source) { }
 };
 
 }

Userland/Libraries/LibWeb/WebContentClient.cpp

@@ -199,13 +199,13 @@ void WebContentClient::handle(const Messages::WebContentClient::DidChangeFavicon
 
 OwnPtr<Messages::WebContentClient::DidRequestCookieResponse> WebContentClient::handle(const Messages::WebContentClient::DidRequestCookie& message)
 {
-    auto result = m_view.notify_server_did_request_cookie({}, message.url());
+    auto result = m_view.notify_server_did_request_cookie({}, message.url(), static_cast<Cookie::Source>(message.source()));
     return make<Messages::WebContentClient::DidRequestCookieResponse>(result);
 }
 
 void WebContentClient::handle(const Messages::WebContentClient::DidSetCookie& message)
 {
-    m_view.notify_server_did_set_cookie({}, message.url(), message.cookie());
+    m_view.notify_server_did_set_cookie({}, message.url(), message.cookie(), static_cast<Cookie::Source>(message.source()));
 }
 
 }

Userland/Libraries/LibWeb/WebViewHooks.h

@@ -48,8 +48,8 @@ public:
     Function<void(DOM::Document*)> on_set_document;
     Function<void(const URL&, const String&)> on_get_source;
     Function<void(const String& method, const String& line)> on_js_console_output;
-    Function<String(const URL& url)> on_get_cookie;
-    Function<void(const URL& url, const String& cookie)> on_set_cookie;
+    Function<String(const URL& url, Cookie::Source source)> on_get_cookie;
+    Function<void(const URL& url, const String& cookie, Cookie::Source source)> on_set_cookie;
 };
 
 }