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/*
* Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
* Copyright (C) 2008 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301 USA
*/
#include "third_party/blink/renderer/modules/plugins/dom_plugin_array.h"
#include "third_party/blink/public/common/features.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/navigator.h"
#include "third_party/blink/renderer/core/page/page.h"
#include "third_party/blink/renderer/core/page/plugin_data.h"
#include "third_party/blink/renderer/modules/plugins/dom_mime_type_array.h"
#include "third_party/blink/renderer/modules/plugins/navigator_plugins.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/wtf/text/atomic_string.h"
#include "third_party/blink/renderer/platform/wtf/vector.h"
namespace blink {
namespace {
DOMPlugin* MakeFakePlugin(String plugin_name, LocalDOMWindow* window) {
String description = "Portable Document Format";
String filename = "internal-pdf-viewer";
auto* plugin_info =
MakeGarbageCollected<PluginInfo>(plugin_name, filename, description,
/*background_color=*/Color::kTransparent,
/*may_use_external_handler=*/false);
Vector<String> extensions{"pdf"};
for (const char* mime_type : {"application/pdf", "text/pdf"}) {
auto* mime_info = MakeGarbageCollected<MimeClassInfo>(
mime_type, description, *plugin_info, extensions);
plugin_info->AddMimeType(mime_info);
}
return MakeGarbageCollected<DOMPlugin>(window, *plugin_info);
}
} // namespace
DOMPluginArray::DOMPluginArray(LocalDOMWindow* window) : window_(window) {
if (IsPdfViewerAvailable()) {
// See crbug.com/1164635 and https://github.com/whatwg/html/pull/6738.
// To reduce fingerprinting and make plugins/mimetypes more
// interoperable, this is the spec'd, hard-coded list of plugins:
Vector<String> plugins{"PDF Viewer", "Chrome PDF Viewer",
"Chromium PDF Viewer", "Microsoft Edge PDF Viewer",
"WebKit built-in PDF"};
for (auto name : plugins) {
dom_plugins_.push_back(MakeFakePlugin(name, window));
}
}
}
void DOMPluginArray::Trace(Visitor* visitor) const {
visitor->Trace(window_);
visitor->Trace(dom_plugins_);
ScriptWrappable::Trace(visitor);
}
unsigned DOMPluginArray::length() const {
return dom_plugins_.size();
}
DOMPlugin* DOMPluginArray::item(unsigned index) {
if (index >= dom_plugins_.size()) {
return nullptr;
}
return dom_plugins_[index].Get();
}
DOMPlugin* DOMPluginArray::namedItem(const AtomicString& property_name) {
for (const auto& plugin : dom_plugins_) {
if (plugin->name() == property_name) {
return plugin.Get();
}
}
return nullptr;
}
void DOMPluginArray::NamedPropertyEnumerator(Vector<String>& property_names,
ExceptionState&) const {
property_names.ReserveInitialCapacity(dom_plugins_.size());
for (const auto& plugin : dom_plugins_) {
property_names.UncheckedAppend(plugin->name());
}
}
bool DOMPluginArray::NamedPropertyQuery(const AtomicString& property_name,
ExceptionState& exception_state) const {
Vector<String> properties;
NamedPropertyEnumerator(properties, exception_state);
return properties.Contains(property_name);
}
void DOMPluginArray::refresh(bool reload) {
if (!window_) {
return;
}
PluginData::RefreshBrowserSidePluginCache();
if (PluginData* data = GetPluginData()) {
data->ResetPluginData();
}
if (reload && window_->GetFrame()) {
window_->GetFrame()->Reload(WebFrameLoadType::kReload);
}
}
PluginData* DOMPluginArray::GetPluginData() const {
return (window_ && window_->GetFrame()) ? window_->GetFrame()->GetPluginData()
: nullptr;
}
HeapVector<Member<DOMMimeType>> DOMPluginArray::GetFixedMimeTypeArray() {
HeapVector<Member<DOMMimeType>> mimetypes;
if (dom_plugins_.empty())
return mimetypes;
DCHECK_EQ(dom_plugins_[0]->length(), 2u);
mimetypes.push_back(dom_plugins_[0]->item(0));
mimetypes.push_back(dom_plugins_[0]->item(1));
return mimetypes;
}
bool DOMPluginArray::IsPdfViewerAvailable() {
auto* data = GetPluginData();
if (!data)
return false;
for (const Member<MimeClassInfo>& mime_info : data->Mimes()) {
if (mime_info->Type() == "application/pdf")
return true;
}
return false;
}
} // namespace blink
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