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/*
* Copyright (C) 2006, 2008 Apple Inc. 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 APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* 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 "third_party/blink/renderer/core/html/plugin_document.h"
#include "third_party/blink/renderer/core/css/css_color.h"
#include "third_party/blink/renderer/core/dom/events/event.h"
#include "third_party/blink/renderer/core/dom/events/native_event_listener.h"
#include "third_party/blink/renderer/core/dom/focus_params.h"
#include "third_party/blink/renderer/core/dom/raw_data_document_parser.h"
#include "third_party/blink/renderer/core/events/before_unload_event.h"
#include "third_party/blink/renderer/core/exported/web_plugin_container_impl.h"
#include "third_party/blink/renderer/core/frame/local_dom_window.h"
#include "third_party/blink/renderer/core/frame/local_frame.h"
#include "third_party/blink/renderer/core/frame/local_frame_client.h"
#include "third_party/blink/renderer/core/frame/local_frame_view.h"
#include "third_party/blink/renderer/core/html/html_body_element.h"
#include "third_party/blink/renderer/core/html/html_embed_element.h"
#include "third_party/blink/renderer/core/html/html_html_element.h"
#include "third_party/blink/renderer/core/html/html_plugin_element.h"
#include "third_party/blink/renderer/core/html_names.h"
#include "third_party/blink/renderer/core/layout/layout_embedded_object.h"
#include "third_party/blink/renderer/core/loader/document_loader.h"
#include "third_party/blink/renderer/core/loader/frame_loader.h"
#include "third_party/blink/renderer/core/page/plugin_data.h"
#include "third_party/blink/renderer/platform/bindings/exception_state.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/instrumentation/use_counter.h"
#include "third_party/blink/renderer/platform/scheduler/public/scheduling_policy.h"
namespace blink {
// FIXME: Share more code with MediaDocumentParser.
class PluginDocumentParser : public RawDataDocumentParser {
public:
PluginDocumentParser(Document* document, Color background_color)
: RawDataDocumentParser(document),
embed_element_(nullptr),
background_color_(background_color) {}
void Trace(Visitor* visitor) const override {
visitor->Trace(embed_element_);
RawDataDocumentParser::Trace(visitor);
}
private:
void AppendBytes(base::span<const uint8_t>) override;
void Finish() override;
void StopParsing() override;
void CreateDocumentStructure();
WebPluginContainerImpl* GetPluginView() const;
Member<HTMLEmbedElement> embed_element_;
const Color background_color_;
};
void PluginDocumentParser::CreateDocumentStructure() {
// TODO(dgozman): DocumentLoader might call Finish on a stopped parser.
// See also comments for DocumentParser::{Detach,StopParsing}.
if (IsStopped())
return;
if (embed_element_)
return;
// FIXME: Assert we have a loader to figure out why the original null checks
// and assert were added for the security bug in
// http://trac.webkit.org/changeset/87566
DCHECK(GetDocument());
CHECK(GetDocument()->Loader());
LocalFrame* frame = GetDocument()->GetFrame();
if (!frame)
return;
// FIXME: Why does this check settings?
if (!frame->GetSettings() || !frame->Loader().AllowPlugins())
return;
auto* root_element = MakeGarbageCollected<HTMLHtmlElement>(*GetDocument());
GetDocument()->AppendChild(root_element);
root_element->InsertedByParser();
if (IsStopped())
return; // runScriptsAtDocumentElementAvailable can detach the frame.
auto* body = MakeGarbageCollected<HTMLBodyElement>(*GetDocument());
body->SetInlineStyleProperty(CSSPropertyID::kHeight, 100.0,
CSSPrimitiveValue::UnitType::kPercentage);
body->SetInlineStyleProperty(CSSPropertyID::kWidth, 100.0,
CSSPrimitiveValue::UnitType::kPercentage);
body->SetInlineStyleProperty(CSSPropertyID::kOverflow, CSSValueID::kHidden);
body->SetInlineStyleProperty(CSSPropertyID::kMargin, 0.0,
CSSPrimitiveValue::UnitType::kPixels);
body->SetInlineStyleProperty(CSSPropertyID::kBackgroundColor,
*cssvalue::CSSColor::Create(background_color_));
root_element->AppendChild(body);
if (IsStopped()) {
// Possibly detached by a mutation event listener installed in
// runScriptsAtDocumentElementAvailable.
return;
}
AtomicString hundred_percent("100%");
AtomicString plugin("plugin");
embed_element_ = MakeGarbageCollected<HTMLEmbedElement>(*GetDocument());
embed_element_->setAttribute(html_names::kWidthAttr, hundred_percent);
embed_element_->setAttribute(html_names::kHeightAttr, hundred_percent);
embed_element_->setAttribute(html_names::kNameAttr, plugin);
embed_element_->setAttribute(html_names::kIdAttr, plugin);
embed_element_->setAttribute(html_names::kSrcAttr,
AtomicString(GetDocument()->Url().GetString()));
embed_element_->setAttribute(html_names::kTypeAttr,
GetDocument()->Loader()->MimeType());
body->AppendChild(embed_element_);
if (IsStopped()) {
// Possibly detached by a mutation event listener installed in
// runScriptsAtDocumentElementAvailable.
return;
}
To<PluginDocument>(GetDocument())->SetPluginNode(embed_element_);
GetDocument()->UpdateStyleAndLayout(DocumentUpdateReason::kPlugin);
// We need the plugin to load synchronously so we can get the
// WebPluginContainerImpl below so flush the layout tasks now instead of
// waiting on the timer.
frame->View()->FlushAnyPendingPostLayoutTasks();
// Focus the plugin here, as the line above is where the plugin is created.
if (frame->IsMainFrame()) {
embed_element_->Focus();
if (IsStopped()) {
// Possibly detached by a mutation event listener installed in
// runScriptsAtDocumentElementAvailable.
return;
}
}
if (WebPluginContainerImpl* view = GetPluginView())
view->DidReceiveResponse(GetDocument()->Loader()->GetResponse());
}
void PluginDocumentParser::AppendBytes(base::span<const uint8_t> data) {
CreateDocumentStructure();
if (IsStopped())
return;
if (data.empty()) {
return;
}
if (WebPluginContainerImpl* view = GetPluginView()) {
view->DidReceiveData(base::as_chars(data));
}
}
void PluginDocumentParser::Finish() {
CreateDocumentStructure();
embed_element_ = nullptr;
RawDataDocumentParser::Finish();
}
void PluginDocumentParser::StopParsing() {
CreateDocumentStructure();
RawDataDocumentParser::StopParsing();
}
WebPluginContainerImpl* PluginDocumentParser::GetPluginView() const {
return To<PluginDocument>(GetDocument())->GetPluginView();
}
PluginDocument::PluginDocument(const DocumentInit& initializer)
: HTMLDocument(initializer, {DocumentClass::kPlugin}),
background_color_(
GetFrame()->GetPluginData()->PluginBackgroundColorForMimeType(
initializer.GetMimeType())) {
SetCompatibilityMode(kNoQuirksMode);
LockCompatibilityMode();
GetExecutionContext()->GetScheduler()->RegisterStickyFeature(
SchedulingPolicy::Feature::kContainsPlugins,
{SchedulingPolicy::DisableBackForwardCache()});
}
DocumentParser* PluginDocument::CreateParser() {
return MakeGarbageCollected<PluginDocumentParser>(this, background_color_);
}
WebPluginContainerImpl* PluginDocument::GetPluginView() {
return plugin_node_ ? plugin_node_->OwnedPlugin() : nullptr;
}
void PluginDocument::Shutdown() {
// Release the plugin node so that we don't have a circular reference.
plugin_node_ = nullptr;
HTMLDocument::Shutdown();
}
void PluginDocument::Trace(Visitor* visitor) const {
visitor->Trace(plugin_node_);
HTMLDocument::Trace(visitor);
}
} // namespace blink
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