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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "MediaDocument.h"
#include "nsIPluginDocument.h"
#include "nsGkAtoms.h"
#include "nsIObjectFrame.h"
#include "nsNPAPIPluginInstance.h"
#include "DocumentInlines.h"
#include "nsIDocShellTreeItem.h"
#include "nsNodeInfoManager.h"
#include "nsContentCreatorFunctions.h"
#include "nsContentPolicyUtils.h"
#include "mozilla/dom/Element.h"
#include "mozilla/PresShell.h"
#include "nsObjectLoadingContent.h"
#include "GeckoProfiler.h"
namespace mozilla::dom {
class PluginDocument final : public MediaDocument, public nsIPluginDocument {
public:
PluginDocument();
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_NSIPLUGINDOCUMENT
enum MediaDocumentKind MediaDocumentKind() const override {
return MediaDocumentKind::Plugin;
}
nsresult StartDocumentLoad(const char* aCommand, nsIChannel* aChannel,
nsILoadGroup* aLoadGroup, nsISupports* aContainer,
nsIStreamListener** aDocListener,
bool aReset = true,
nsIContentSink* aSink = nullptr) override;
void SetScriptGlobalObject(
nsIScriptGlobalObject* aScriptGlobalObject) override;
bool CanSavePresentation(nsIRequest* aNewRequest,
uint16_t& aBFCacheStatus) override;
const nsCString& GetType() const { return mMimeType; }
Element* GetPluginContent() { return mPluginContent; }
virtual void Destroy() override {
if (mStreamListener) {
mStreamListener->DropDocumentRef();
}
MediaDocument::Destroy();
}
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(PluginDocument, MediaDocument)
protected:
~PluginDocument() override;
nsresult CreateSyntheticPluginDocument();
nsCOMPtr<Element> mPluginContent;
RefPtr<MediaDocumentStreamListener> mStreamListener;
nsCString mMimeType;
};
class PluginStreamListener : public MediaDocumentStreamListener {
public:
explicit PluginStreamListener(PluginDocument* aDoc)
: MediaDocumentStreamListener(aDoc), mPluginDoc(aDoc) {}
NS_IMETHOD OnStartRequest(nsIRequest* request) override;
private:
RefPtr<PluginDocument> mPluginDoc;
};
NS_IMETHODIMP
PluginStreamListener::OnStartRequest(nsIRequest* request) {
AUTO_PROFILER_LABEL("PluginStreamListener::OnStartRequest", NETWORK);
nsCOMPtr<nsIContent> embed = mPluginDoc->GetPluginContent();
nsCOMPtr<nsIObjectLoadingContent> objlc = do_QueryInterface(embed);
nsCOMPtr<nsIStreamListener> objListener = do_QueryInterface(objlc);
if (!objListener) {
MOZ_ASSERT_UNREACHABLE(
"PluginStreamListener without appropriate content "
"node");
return NS_BINDING_ABORTED;
}
SetStreamListener(objListener);
// Sets up the ObjectLoadingContent tag as if it is waiting for a
// channel, so it can proceed with a load normally once it gets OnStartRequest
nsresult rv = objlc->InitializeFromChannel(request);
if (NS_FAILED(rv)) {
MOZ_ASSERT_UNREACHABLE("InitializeFromChannel failed");
return rv;
}
// Note that because we're now hooked up to a plugin listener, this will
// likely spawn a plugin, which may re-enter.
return MediaDocumentStreamListener::OnStartRequest(request);
}
PluginDocument::PluginDocument() = default;
PluginDocument::~PluginDocument() = default;
NS_IMPL_CYCLE_COLLECTION_INHERITED(PluginDocument, MediaDocument,
mPluginContent)
NS_IMPL_ISUPPORTS_CYCLE_COLLECTION_INHERITED(PluginDocument, MediaDocument,
nsIPluginDocument)
void PluginDocument::SetScriptGlobalObject(
nsIScriptGlobalObject* aScriptGlobalObject) {
// Set the script global object on the superclass before doing
// anything that might require it....
MediaDocument::SetScriptGlobalObject(aScriptGlobalObject);
if (aScriptGlobalObject) {
if (!InitialSetupHasBeenDone()) {
// Create synthetic document
#ifdef DEBUG
nsresult rv =
#endif
CreateSyntheticPluginDocument();
NS_ASSERTION(NS_SUCCEEDED(rv), "failed to create synthetic document");
InitialSetupDone();
}
} else {
mStreamListener = nullptr;
}
}
bool PluginDocument::CanSavePresentation(nsIRequest* aNewRequest,
uint16_t& aBFCacheStatus) {
// Full-page plugins cannot be cached, currently, because we don't have
// the stream listener data to feed to the plugin instance.
return false;
}
nsresult PluginDocument::StartDocumentLoad(const char* aCommand,
nsIChannel* aChannel,
nsILoadGroup* aLoadGroup,
nsISupports* aContainer,
nsIStreamListener** aDocListener,
bool aReset, nsIContentSink* aSink) {
// do not allow message panes to host full-page plugins
// returning an error causes helper apps to take over
nsCOMPtr<nsIDocShellTreeItem> dsti(do_QueryInterface(aContainer));
if (dsti) {
bool isMsgPane = false;
dsti->NameEquals(u"messagepane"_ns, &isMsgPane);
if (isMsgPane) {
return NS_ERROR_FAILURE;
}
}
nsresult rv = MediaDocument::StartDocumentLoad(
aCommand, aChannel, aLoadGroup, aContainer, aDocListener, aReset, aSink);
if (NS_FAILED(rv)) {
return rv;
}
rv = aChannel->GetContentType(mMimeType);
if (NS_FAILED(rv)) {
return rv;
}
MediaDocument::UpdateTitleAndCharset(mMimeType, aChannel);
mStreamListener = new PluginStreamListener(this);
NS_ASSERTION(aDocListener, "null aDocListener");
NS_ADDREF(*aDocListener = mStreamListener);
return rv;
}
nsresult PluginDocument::CreateSyntheticPluginDocument() {
NS_ASSERTION(!GetPresShell() || !GetPresShell()->DidInitialize(),
"Creating synthetic plugin document content too late");
// make our generic document
nsresult rv = MediaDocument::CreateSyntheticDocument();
NS_ENSURE_SUCCESS(rv, rv);
// then attach our plugin
RefPtr<Element> body = GetBodyElement();
if (!body) {
NS_WARNING("no body on plugin document!");
return NS_ERROR_FAILURE;
}
// remove margins from body
constexpr auto zero = u"0"_ns;
body->SetAttr(kNameSpaceID_None, nsGkAtoms::marginwidth, zero, false);
body->SetAttr(kNameSpaceID_None, nsGkAtoms::marginheight, zero, false);
// make plugin content
RefPtr<mozilla::dom::NodeInfo> nodeInfo;
nodeInfo = mNodeInfoManager->GetNodeInfo(
nsGkAtoms::embed, nullptr, kNameSpaceID_XHTML, nsINode::ELEMENT_NODE);
rv = NS_NewHTMLElement(getter_AddRefs(mPluginContent), nodeInfo.forget(),
NOT_FROM_PARSER);
NS_ENSURE_SUCCESS(rv, rv);
// make it a named element
mPluginContent->SetAttr(kNameSpaceID_None, nsGkAtoms::name, u"plugin"_ns,
false);
// fill viewport and auto-resize
constexpr auto percent100 = u"100%"_ns;
mPluginContent->SetAttr(kNameSpaceID_None, nsGkAtoms::width, percent100,
false);
mPluginContent->SetAttr(kNameSpaceID_None, nsGkAtoms::height, percent100,
false);
// set URL
nsAutoCString src;
mDocumentURI->GetSpec(src);
mPluginContent->SetAttr(kNameSpaceID_None, nsGkAtoms::src,
NS_ConvertUTF8toUTF16(src), false);
// set mime type
mPluginContent->SetAttr(kNameSpaceID_None, nsGkAtoms::type,
NS_ConvertUTF8toUTF16(mMimeType), false);
// nsHTML(Shared)ObjectElement does not kick off a load on BindToTree if it is
// to a PluginDocument
body->AppendChildTo(mPluginContent, false);
return NS_OK;
}
NS_IMETHODIMP
PluginDocument::Print() {
NS_ENSURE_TRUE(mPluginContent, NS_ERROR_FAILURE);
nsIObjectFrame* objectFrame =
do_QueryFrame(mPluginContent->GetPrimaryFrame());
if (objectFrame) {
RefPtr<nsNPAPIPluginInstance> pi = objectFrame->GetPluginInstance();
if (pi) {
NPPrint npprint;
npprint.mode = NP_FULL;
npprint.print.fullPrint.pluginPrinted = false;
npprint.print.fullPrint.printOne = false;
npprint.print.fullPrint.platformPrint = nullptr;
pi->Print(&npprint);
}
}
return NS_OK;
}
} // namespace mozilla::dom
nsresult NS_NewPluginDocument(mozilla::dom::Document** aResult) {
auto* doc = new mozilla::dom::PluginDocument();
NS_ADDREF(doc);
nsresult rv = doc->Init();
if (NS_FAILED(rv)) {
NS_RELEASE(doc);
}
*aResult = doc;
return rv;
}