ladybird/Libraries/LibWeb/HTML/HTMLIFrameElement.cpp
Andreas Kling 6496895b16 LibWeb: <iframe src> same-origin check should be based on host document
We were basing the src attribute's cross-origin check on whatever was
currently loaded in the iframe, instead of the surrounding document.

Fixes #4236.
2020-12-08 17:49:02 +01:00

113 lines
3.8 KiB
C++

/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <LibGUI/Button.h>
#include <LibGUI/TextBox.h>
#include <LibWeb/Bindings/WindowObject.h>
#include <LibWeb/DOM/Document.h>
#include <LibWeb/DOM/Event.h>
#include <LibWeb/DOM/Window.h>
#include <LibWeb/Dump.h>
#include <LibWeb/HTML/EventNames.h>
#include <LibWeb/HTML/HTMLFormElement.h>
#include <LibWeb/HTML/HTMLIFrameElement.h>
#include <LibWeb/HTML/Parser/HTMLDocumentParser.h>
#include <LibWeb/InProcessWebView.h>
#include <LibWeb/Layout/FrameBox.h>
#include <LibWeb/Loader/ResourceLoader.h>
#include <LibWeb/Origin.h>
#include <LibWeb/Page/Frame.h>
namespace Web::HTML {
HTMLIFrameElement::HTMLIFrameElement(DOM::Document& document, const QualifiedName& qualified_name)
: HTMLElement(document, qualified_name)
{
}
HTMLIFrameElement::~HTMLIFrameElement()
{
}
RefPtr<Layout::Node> HTMLIFrameElement::create_layout_node(const CSS::StyleProperties* parent_style)
{
auto style = document().style_resolver().resolve_style(*this, parent_style);
return adopt(*new Layout::FrameBox(document(), *this, move(style)));
}
void HTMLIFrameElement::document_did_attach_to_frame(Frame& frame)
{
ASSERT(!m_content_frame);
m_content_frame = Frame::create_subframe(*this, frame.main_frame());
auto src = attribute(HTML::AttributeNames::src);
if (src.is_null())
return;
load_src(src);
}
void HTMLIFrameElement::document_will_detach_from_frame(Frame&)
{
}
void HTMLIFrameElement::load_src(const String& value)
{
auto url = document().complete_url(value);
if (!url.is_valid()) {
dbg() << "iframe failed to load URL: Invalid URL: " << value;
return;
}
if (url.protocol() == "file" && document().origin().protocol() != "file") {
dbg() << "iframe failed to load URL: Security violation: " << document().url() << " may not load " << url;
return;
}
dbg() << "Loading iframe document from " << value;
m_content_frame->loader().load(url, FrameLoader::Type::IFrame);
}
Origin HTMLIFrameElement::content_origin() const
{
if (!m_content_frame || !m_content_frame->document())
return {};
return m_content_frame->document()->origin();
}
bool HTMLIFrameElement::may_access_from_origin(const Origin& origin) const
{
return origin.is_same(content_origin());
}
const DOM::Document* HTMLIFrameElement::content_document() const
{
return m_content_frame ? m_content_frame->document() : nullptr;
}
void HTMLIFrameElement::content_frame_did_load(Badge<FrameLoader>)
{
dispatch_event(DOM::Event::create(EventNames::load));
}
}