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cef/libcef/renderer/content_renderer_client.cc

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// Copyright (c) 2013 The Chromium Embedded Framework Authors.
// Portions copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "libcef/renderer/content_renderer_client.h"
#include <utility>
#include "base/compiler_specific.h"
// Enable deprecation warnings for MSVC. See http://crbug.com/585142.
#if defined(OS_WIN)
#pragma warning(push)
#pragma warning(default : 4996)
#endif
#include "libcef/browser/context.h"
#include "libcef/common/cef_messages.h"
#include "libcef/common/cef_switches.h"
#include "libcef/common/content_client.h"
#include "libcef/common/extensions/extensions_client.h"
#include "libcef/common/extensions/extensions_util.h"
#include "libcef/common/request_impl.h"
#include "libcef/common/values_impl.h"
#include "libcef/renderer/browser_impl.h"
#include "libcef/renderer/extensions/extensions_renderer_client.h"
#include "libcef/renderer/extensions/print_render_frame_helper_delegate.h"
#include "libcef/renderer/media/cef_key_systems.h"
#include "libcef/renderer/pepper/pepper_helper.h"
#include "libcef/renderer/plugins/cef_plugin_placeholder.h"
#include "libcef/renderer/plugins/plugin_preroller.h"
#include "libcef/renderer/render_frame_observer.h"
#include "libcef/renderer/render_message_filter.h"
#include "libcef/renderer/render_thread_observer.h"
#include "libcef/renderer/thread_util.h"
#include "libcef/renderer/v8_impl.h"
#include "libcef/renderer/webkit_glue.h"
#include "base/command_line.h"
#include "base/macros.h"
#include "base/memory/ptr_util.h"
#include "base/metrics/user_metrics_action.h"
#include "base/path_service.h"
#include "base/stl_util.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/utf_string_conversions.h"
#include "build/build_config.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/pepper_permission_util.h"
#include "chrome/common/url_constants.h"
#include "chrome/grit/generated_resources.h"
#include "chrome/grit/renderer_resources.h"
#include "chrome/renderer/content_settings_observer.h"
#include "chrome/renderer/loadtimes_extension_bindings.h"
#include "chrome/renderer/pepper/chrome_pdf_print_client.h"
#include "chrome/renderer/plugins/power_saver_info.h"
#include "components/content_settings/core/common/content_settings_types.h"
#include "components/nacl/common/nacl_constants.h"
#include "components/printing/renderer/print_render_frame_helper.h"
#include "components/spellcheck/renderer/spellcheck.h"
#include "components/spellcheck/renderer/spellcheck_provider.h"
#include "components/visitedlink/renderer/visitedlink_slave.h"
#include "components/web_cache/renderer/web_cache_impl.h"
#include "content/common/frame_messages.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/child/child_thread.h"
#include "content/public/common/content_constants.h"
#include "content/public/common/content_paths.h"
#include "content/public/common/content_switches.h"
#include "content/public/renderer/plugin_instance_throttler.h"
#include "content/public/renderer/render_thread.h"
#include "content/public/renderer/render_view.h"
#include "content/public/renderer/render_view_visitor.h"
#include "content/renderer/render_frame_impl.h"
#include "content/renderer/render_widget.h"
#include "extensions/common/switches.h"
#include "extensions/renderer/renderer_extension_registry.h"
#include "ipc/ipc_sync_channel.h"
#include "media/base/media.h"
#include "printing/print_settings.h"
#include "third_party/WebKit/public/platform/URLConversion.h"
#include "third_party/WebKit/public/platform/WebPrerenderingSupport.h"
#include "third_party/WebKit/public/platform/WebRuntimeFeatures.h"
#include "third_party/WebKit/public/platform/WebString.h"
#include "third_party/WebKit/public/platform/WebURL.h"
#include "third_party/WebKit/public/platform/scheduler/renderer_process_type.h"
#include "third_party/WebKit/public/web/WebConsoleMessage.h"
#include "third_party/WebKit/public/web/WebElement.h"
#include "third_party/WebKit/public/web/WebFrame.h"
#include "third_party/WebKit/public/web/WebLocalFrame.h"
#include "third_party/WebKit/public/web/WebPrerendererClient.h"
#include "third_party/WebKit/public/web/WebSecurityPolicy.h"
#include "third_party/WebKit/public/web/WebView.h"
#include "ui/base/l10n/l10n_util.h"
#if defined(OS_MACOSX)
#include "base/mac/mac_util.h"
#include "base/strings/sys_string_conversions.h"
#endif
namespace {
// Stub implementation of blink::WebPrerenderingSupport.
class CefPrerenderingSupport : public blink::WebPrerenderingSupport {
private:
void Add(const blink::WebPrerender& prerender) override {}
void Cancel(const blink::WebPrerender& prerender) override {}
void Abandon(const blink::WebPrerender& prerender) override {}
void PrefetchFinished() override {}
};
// Stub implementation of blink::WebPrerendererClient.
class CefPrerendererClient : public content::RenderViewObserver,
public blink::WebPrerendererClient {
public:
explicit CefPrerendererClient(content::RenderView* render_view)
: content::RenderViewObserver(render_view) {
DCHECK(render_view);
render_view->GetWebView()->SetPrerendererClient(this);
}
private:
~CefPrerendererClient() override {}
// RenderViewObserver methods:
void OnDestruct() override { delete this; }
// WebPrerendererClient methods:
void WillAddPrerender(blink::WebPrerender* prerender) override {}
bool IsPrefetchOnly() override { return false; }
};
void AppendParams(const std::vector<base::string16>& additional_names,
const std::vector<base::string16>& additional_values,
blink::WebVector<blink::WebString>* existing_names,
blink::WebVector<blink::WebString>* existing_values) {
DCHECK(additional_names.size() == additional_values.size());
DCHECK(existing_names->size() == existing_values->size());
size_t existing_size = existing_names->size();
size_t total_size = existing_size + additional_names.size();
blink::WebVector<blink::WebString> names(total_size);
blink::WebVector<blink::WebString> values(total_size);
for (size_t i = 0; i < existing_size; ++i) {
names[i] = (*existing_names)[i];
values[i] = (*existing_values)[i];
}
for (size_t i = 0; i < additional_names.size(); ++i) {
names[existing_size + i] = blink::WebString::FromUTF16(additional_names[i]);
values[existing_size + i] =
blink::WebString::FromUTF16(additional_values[i]);
}
existing_names->Swap(names);
existing_values->Swap(values);
}
bool IsStandaloneExtensionProcess() {
return extensions::ExtensionsEnabled() &&
extensions::CefExtensionsRendererClient::
IsStandaloneExtensionProcess();
}
} // namespace
// Placeholder object for guest views.
class CefGuestView : public content::RenderViewObserver {
public:
explicit CefGuestView(content::RenderView* render_view)
: content::RenderViewObserver(render_view) {}
private:
// RenderViewObserver methods.
void OnDestruct() override {
CefContentRendererClient::Get()->OnGuestViewDestroyed(this);
}
};
CefContentRendererClient::CefContentRendererClient()
: devtools_agent_count_(0),
uncaught_exception_stack_size_(0),
single_process_cleanup_complete_(false) {
if (extensions::ExtensionsEnabled()) {
extensions_client_.reset(new extensions::CefExtensionsClient);
extensions::ExtensionsClient::Set(extensions_client_.get());
extensions_renderer_client_.reset(
new extensions::CefExtensionsRendererClient);
extensions::ExtensionsRendererClient::Set(
extensions_renderer_client_.get());
}
printing::SetAgent(CefContentClient::Get()->GetUserAgent());
}
CefContentRendererClient::~CefContentRendererClient() {}
// static
CefContentRendererClient* CefContentRendererClient::Get() {
return static_cast<CefContentRendererClient*>(
CefContentClient::Get()->renderer());
}
CefRefPtr<CefBrowserImpl> CefContentRendererClient::GetBrowserForView(
content::RenderView* view) {
CEF_REQUIRE_RT_RETURN(NULL);
BrowserMap::const_iterator it = browsers_.find(view);
if (it != browsers_.end())
return it->second;
return NULL;
}
CefRefPtr<CefBrowserImpl> CefContentRendererClient::GetBrowserForMainFrame(
blink::WebFrame* frame) {
CEF_REQUIRE_RT_RETURN(NULL);
BrowserMap::const_iterator it = browsers_.begin();
for (; it != browsers_.end(); ++it) {
content::RenderView* render_view = it->second->render_view();
if (render_view && render_view->GetWebView() &&
render_view->GetWebView()->MainFrame() == frame) {
return it->second;
}
}
return NULL;
}
void CefContentRendererClient::OnBrowserDestroyed(CefBrowserImpl* browser) {
BrowserMap::iterator it = browsers_.begin();
for (; it != browsers_.end(); ++it) {
if (it->second.get() == browser) {
browsers_.erase(it);
return;
}
}
// No browser was found in the map.
NOTREACHED();
}
bool CefContentRendererClient::HasGuestViewForView(content::RenderView* view) {
CEF_REQUIRE_RT_RETURN(false);
GuestViewMap::const_iterator it = guest_views_.find(view);
return it != guest_views_.end();
}
void CefContentRendererClient::OnGuestViewDestroyed(CefGuestView* guest_view) {
GuestViewMap::iterator it = guest_views_.begin();
for (; it != guest_views_.end(); ++it) {
if (it->second.get() == guest_view) {
guest_views_.erase(it);
return;
}
}
// No guest view was found in the map.
NOTREACHED();
}
void CefContentRendererClient::WebKitInitialized() {
const base::CommandLine* command_line =
base::CommandLine::ForCurrentProcess();
// Create global objects associated with the default Isolate.
CefV8IsolateCreated();
// TODO(cef): Enable these once the implementation supports it.
blink::WebRuntimeFeatures::EnableNotifications(false);
const CefContentClient::SchemeInfoList* schemes =
CefContentClient::Get()->GetCustomSchemes();
if (!schemes->empty()) {
// Register the custom schemes. The |is_standard| value is excluded here
// because it's not explicitly registered with Blink.
CefContentClient::SchemeInfoList::const_iterator it = schemes->begin();
for (; it != schemes->end(); ++it) {
const CefContentClient::SchemeInfo& info = *it;
const blink::WebString& scheme =
blink::WebString::FromUTF8(info.scheme_name);
if (info.is_local)
webkit_glue::RegisterURLSchemeAsLocal(scheme);
if (info.is_display_isolated)
blink::WebSecurityPolicy::RegisterURLSchemeAsDisplayIsolated(scheme);
if (info.is_secure)
webkit_glue::RegisterURLSchemeAsSecure(scheme);
}
}
if (!cross_origin_whitelist_entries_.empty()) {
// Add the cross-origin white list entries.
for (size_t i = 0; i < cross_origin_whitelist_entries_.size(); ++i) {
const Cef_CrossOriginWhiteListEntry_Params& entry =
cross_origin_whitelist_entries_[i];
GURL gurl = GURL(entry.source_origin);
blink::WebSecurityPolicy::AddOriginAccessWhitelistEntry(
gurl, blink::WebString::FromUTF8(entry.target_protocol),
blink::WebString::FromUTF8(entry.target_domain),
entry.allow_target_subdomains);
}
cross_origin_whitelist_entries_.clear();
}
// The number of stack trace frames to capture for uncaught exceptions.
if (command_line->HasSwitch(switches::kUncaughtExceptionStackSize)) {
int uncaught_exception_stack_size = 0;
base::StringToInt(command_line->GetSwitchValueASCII(
switches::kUncaughtExceptionStackSize),
&uncaught_exception_stack_size);
if (uncaught_exception_stack_size > 0) {
uncaught_exception_stack_size_ = uncaught_exception_stack_size;
CefV8SetUncaughtExceptionStackSize(uncaught_exception_stack_size_);
}
}
// Notify the render process handler.
CefRefPtr<CefApp> application = CefContentClient::Get()->application();
if (application.get()) {
CefRefPtr<CefRenderProcessHandler> handler =
application->GetRenderProcessHandler();
if (handler.get())
handler->OnWebKitInitialized();
}
}
void CefContentRendererClient::OnRenderProcessShutdown() {
// Destroy global objects associated with the default Isolate.
CefV8IsolateDestroyed();
}
void CefContentRendererClient::DevToolsAgentAttached() {
CEF_REQUIRE_RT();
++devtools_agent_count_;
}
void CefContentRendererClient::DevToolsAgentDetached() {
CEF_REQUIRE_RT();
--devtools_agent_count_;
if (devtools_agent_count_ == 0 && uncaught_exception_stack_size_ > 0) {
// When the last DevToolsAgent is detached the stack size is set to 0.
// Restore the user-specified stack size here.
CefV8SetUncaughtExceptionStackSize(uncaught_exception_stack_size_);
}
}
scoped_refptr<base::SingleThreadTaskRunner>
CefContentRendererClient::GetCurrentTaskRunner() {
// Check if currently on the render thread.
if (CEF_CURRENTLY_ON_RT())
return render_task_runner_;
return NULL;
}
void CefContentRendererClient::RunSingleProcessCleanup() {
DCHECK(content::RenderProcessHost::run_renderer_in_process());
// Make sure the render thread was actually started.
if (!render_task_runner_.get())
return;
if (content::BrowserThread::CurrentlyOn(content::BrowserThread::UI)) {
RunSingleProcessCleanupOnUIThread();
} else {
content::BrowserThread::PostTask(
content::BrowserThread::UI, FROM_HERE,
base::Bind(&CefContentRendererClient::RunSingleProcessCleanupOnUIThread,
base::Unretained(this)));
}
// Wait for the render thread cleanup to complete. Spin instead of using
// base::WaitableEvent because calling Wait() is not allowed on the UI
// thread.
bool complete = false;
do {
{
base::AutoLock lock_scope(single_process_cleanup_lock_);
complete = single_process_cleanup_complete_;
}
if (!complete)
base::PlatformThread::YieldCurrentThread();
} while (!complete);
}
void CefContentRendererClient::RenderThreadStarted() {
const base::CommandLine* command_line =
base::CommandLine::ForCurrentProcess();
render_task_runner_ = base::ThreadTaskRunnerHandle::Get();
observer_.reset(new CefRenderThreadObserver());
web_cache_impl_.reset(new web_cache::WebCacheImpl());
content::RenderThread* thread = content::RenderThread::Get();
thread->SetRendererProcessType(
IsStandaloneExtensionProcess()
? blink::scheduler::RendererProcessType::kExtensionRenderer
: blink::scheduler::RendererProcessType::kRenderer);
thread->AddObserver(observer_.get());
thread->GetChannel()->AddFilter(new CefRenderMessageFilter);
if (!command_line->HasSwitch(switches::kDisableSpellChecking)) {
spellcheck_.reset(new SpellCheck());
thread->AddObserver(spellcheck_.get());
}
if (content::RenderProcessHost::run_renderer_in_process()) {
// When running in single-process mode register as a destruction observer
// on the render thread's MessageLoop.
base::MessageLoop::current()->AddDestructionObserver(this);
}
blink::WebPrerenderingSupport::Initialize(new CefPrerenderingSupport());
#if defined(OS_MACOSX)
{
base::ScopedCFTypeRef<CFStringRef> key(
base::SysUTF8ToCFStringRef("NSScrollViewRubberbanding"));
base::ScopedCFTypeRef<CFStringRef> value;
// If the command-line switch is specified then set the value that will be
// checked in RenderThreadImpl::Init(). Otherwise, remove the application-
// level value.
if (command_line->HasSwitch(switches::kDisableScrollBounce))
value.reset(base::SysUTF8ToCFStringRef("false"));
CFPreferencesSetAppValue(key, value, kCFPreferencesCurrentApplication);
CFPreferencesAppSynchronize(kCFPreferencesCurrentApplication);
}
#endif // defined(OS_MACOSX)
if (extensions::PdfExtensionEnabled()) {
pdf_print_client_.reset(new ChromePDFPrintClient());
pdf::PepperPDFHost::SetPrintClient(pdf_print_client_.get());
}
if (extensions::ExtensionsEnabled())
extensions_renderer_client_->RenderThreadStarted();
}
void CefContentRendererClient::RenderThreadConnected() {
content::RenderThread* thread = content::RenderThread::Get();
// Retrieve the new render thread information synchronously.
CefProcessHostMsg_GetNewRenderThreadInfo_Params params;
thread->Send(new CefProcessHostMsg_GetNewRenderThreadInfo(&params));
// Cross-origin entries need to be added after WebKit is initialized.
cross_origin_whitelist_entries_ = params.cross_origin_whitelist_entries;
// Notify the render process handler.
CefRefPtr<CefApp> application = CefContentClient::Get()->application();
if (application.get()) {
CefRefPtr<CefRenderProcessHandler> handler =
application->GetRenderProcessHandler();
if (handler.get()) {
CefRefPtr<CefListValueImpl> listValuePtr(
new CefListValueImpl(&params.extra_info, false, true));
handler->OnRenderThreadCreated(listValuePtr.get());
listValuePtr->Detach(NULL);
}
}
// Register extensions last because it will trigger WebKit initialization.
thread->RegisterExtension(extensions_v8::LoadTimesExtension::Get());
WebKitInitialized();
}
void CefContentRendererClient::RenderFrameCreated(
content::RenderFrame* render_frame) {
CefRenderFrameObserver* render_frame_observer =
new CefRenderFrameObserver(render_frame);
service_manager::BinderRegistry* registry = render_frame_observer->registry();
new CefPepperHelper(render_frame);
new printing::PrintRenderFrameHelper(
render_frame,
base::WrapUnique(new extensions::CefPrintRenderFrameHelperDelegate()));
if (extensions::ExtensionsEnabled())
extensions_renderer_client_->RenderFrameCreated(render_frame, registry);
const base::CommandLine* command_line =
base::CommandLine::ForCurrentProcess();
if (!command_line->HasSwitch(switches::kDisableSpellChecking))
new SpellCheckProvider(render_frame, spellcheck_.get());
BrowserCreated(render_frame->GetRenderView(), render_frame);
}
void CefContentRendererClient::RenderViewCreated(
content::RenderView* render_view) {
new CefPrerendererClient(render_view);
if (extensions::ExtensionsEnabled())
extensions_renderer_client_->RenderViewCreated(render_view);
const base::CommandLine* command_line =
base::CommandLine::ForCurrentProcess();
if (!command_line->HasSwitch(switches::kDisableSpellChecking)) {
// This is a workaround keeping the behavior that, the Blink side spellcheck
// enabled state is initialized on RenderView creation.
// TODO(xiaochengh): Design better way to sync between Chrome-side and
// Blink-side spellcheck enabled states. See crbug.com/710097.
if (SpellCheckProvider* provider =
SpellCheckProvider::Get(render_view->GetMainRenderFrame())) {
provider->EnableSpellcheck(spellcheck_->IsSpellcheckEnabled());
}
}
BrowserCreated(render_view, render_view->GetMainRenderFrame());
}
bool CefContentRendererClient::OverrideCreatePlugin(
content::RenderFrame* render_frame,
const blink::WebPluginParams& params,
blink::WebPlugin** plugin) {
std::string orig_mime_type = params.mime_type.Utf8();
if (extensions::ExtensionsEnabled() &&
!extensions_renderer_client_->OverrideCreatePlugin(render_frame,
params)) {
return false;
}
GURL url(params.url);
CefViewHostMsg_GetPluginInfo_Output output;
render_frame->Send(new CefViewHostMsg_GetPluginInfo(
render_frame->GetRoutingID(), url,
render_frame->GetWebFrame()->Parent() == nullptr,
render_frame->GetWebFrame()->Top()->GetSecurityOrigin(), orig_mime_type,
&output));
*plugin = CreatePlugin(render_frame, params, output);
return true;
}
bool CefContentRendererClient::HandleNavigation(
content::RenderFrame* render_frame,
bool is_content_initiated,
bool render_view_was_created_by_renderer,
blink::WebFrame* frame,
const blink::WebURLRequest& request,
blink::WebNavigationType type,
blink::WebNavigationPolicy default_policy,
bool is_redirect) {
if (!frame->IsWebLocalFrame())
return false;
CefRefPtr<CefApp> application = CefContentClient::Get()->application();
if (application.get()) {
CefRefPtr<CefRenderProcessHandler> handler =
application->GetRenderProcessHandler();
if (handler.get()) {
CefRefPtr<CefBrowserImpl> browserPtr =
CefBrowserImpl::GetBrowserForMainFrame(frame->Top());
if (browserPtr.get()) {
CefRefPtr<CefFrameImpl> framePtr =
browserPtr->GetWebFrameImpl(frame->ToWebLocalFrame());
CefRefPtr<CefRequest> requestPtr(CefRequest::Create());
CefRequestImpl* requestImpl =
static_cast<CefRequestImpl*>(requestPtr.get());
requestImpl->Set(request);
requestImpl->SetReadOnly(true);
cef_navigation_type_t navigation_type = NAVIGATION_OTHER;
switch (type) {
case blink::kWebNavigationTypeLinkClicked:
navigation_type = NAVIGATION_LINK_CLICKED;
break;
case blink::kWebNavigationTypeFormSubmitted:
navigation_type = NAVIGATION_FORM_SUBMITTED;
break;
case blink::kWebNavigationTypeBackForward:
navigation_type = NAVIGATION_BACK_FORWARD;
break;
case blink::kWebNavigationTypeReload:
navigation_type = NAVIGATION_RELOAD;
break;
case blink::kWebNavigationTypeFormResubmitted:
navigation_type = NAVIGATION_FORM_RESUBMITTED;
break;
case blink::kWebNavigationTypeOther:
navigation_type = NAVIGATION_OTHER;
break;
}
if (handler->OnBeforeNavigation(browserPtr.get(), framePtr.get(),
requestPtr.get(), navigation_type,
is_redirect)) {
return true;
}
}
}
}
return false;
}
bool CefContentRendererClient::ShouldFork(blink::WebLocalFrame* frame,
const GURL& url,
const std::string& http_method,
bool is_initial_navigation,
bool is_server_redirect,
bool* send_referrer) {
DCHECK(!frame->Parent());
// For now, we skip the rest for POST submissions. This is because
// http://crbug.com/101395 is more likely to cause compatibility issues
// with hosted apps and extensions than WebUI pages. We will remove this
// check when cross-process POST submissions are supported.
if (http_method != "GET")
return false;
if (extensions::ExtensionsEnabled()) {
return extensions::CefExtensionsRendererClient::ShouldFork(
frame, url, is_initial_navigation, is_server_redirect, send_referrer);
}
return false;
}
bool CefContentRendererClient::WillSendRequest(
blink::WebLocalFrame* frame,
ui::PageTransition transition_type,
const blink::WebURL& url,
std::vector<std::unique_ptr<content::URLLoaderThrottle>>* throttles,
GURL* new_url) {
if (extensions::ExtensionsEnabled()) {
return extensions_renderer_client_->WillSendRequest(frame, transition_type,
url, new_url);
}
return false;
}
unsigned long long CefContentRendererClient::VisitedLinkHash(
const char* canonical_url,
size_t length) {
return observer_->visited_link_slave()->ComputeURLFingerprint(canonical_url,
length);
}
bool CefContentRendererClient::IsLinkVisited(unsigned long long link_hash) {
return observer_->visited_link_slave()->IsVisited(link_hash);
}
content::BrowserPluginDelegate*
CefContentRendererClient::CreateBrowserPluginDelegate(
content::RenderFrame* render_frame,
const std::string& mime_type,
const GURL& original_url) {
DCHECK(extensions::ExtensionsEnabled());
return extensions::CefExtensionsRendererClient::CreateBrowserPluginDelegate(
render_frame, mime_type, original_url);
}
void CefContentRendererClient::AddSupportedKeySystems(
std::vector<std::unique_ptr<::media::KeySystemProperties>>* key_systems) {
AddCefKeySystems(key_systems);
}
void CefContentRendererClient::RunScriptsAtDocumentStart(
content::RenderFrame* render_frame) {
if (extensions::ExtensionsEnabled())
extensions_renderer_client_->RunScriptsAtDocumentStart(render_frame);
}
void CefContentRendererClient::RunScriptsAtDocumentEnd(
content::RenderFrame* render_frame) {
if (extensions::ExtensionsEnabled())
extensions_renderer_client_->RunScriptsAtDocumentEnd(render_frame);
}
void CefContentRendererClient::RunScriptsAtDocumentIdle(
content::RenderFrame* render_frame) {
if (extensions::ExtensionsEnabled())
extensions_renderer_client_->RunScriptsAtDocumentIdle(render_frame);
}
void CefContentRendererClient::WillDestroyCurrentMessageLoop() {
base::AutoLock lock_scope(single_process_cleanup_lock_);
single_process_cleanup_complete_ = true;
}
// static
blink::WebPlugin* CefContentRendererClient::CreatePlugin(
content::RenderFrame* render_frame,
const blink::WebPluginParams& original_params,
const CefViewHostMsg_GetPluginInfo_Output& output) {
const content::WebPluginInfo& info = output.plugin;
const std::string& actual_mime_type = output.actual_mime_type;
const base::string16& group_name = output.group_name;
const std::string& identifier = output.group_identifier;
CefViewHostMsg_GetPluginInfo_Status status = output.status;
GURL url(original_params.url);
std::string orig_mime_type = original_params.mime_type.Utf8();
CefPluginPlaceholder* placeholder = NULL;
// If the browser plugin is to be enabled, this should be handled by the
// renderer, so the code won't reach here due to the early exit in
// OverrideCreatePlugin.
if (status == CefViewHostMsg_GetPluginInfo_Status::kNotFound ||
orig_mime_type == content::kBrowserPluginMimeType) {
placeholder = CefPluginPlaceholder::CreateLoadableMissingPlugin(
render_frame, original_params);
} else {
// TODO(bauerb): This should be in content/.
blink::WebPluginParams params(original_params);
for (const auto& mime_type : info.mime_types) {
if (mime_type.mime_type == actual_mime_type) {
AppendParams(mime_type.additional_param_names,
mime_type.additional_param_values, &params.attribute_names,
&params.attribute_values);
break;
}
}
if (params.mime_type.IsNull() && (actual_mime_type.size() > 0)) {
// Webkit might say that mime type is null while we already know the
// actual mime type via CefViewHostMsg_GetPluginInfo. In that case
// we should use what we know since WebpluginDelegateProxy does some
// specific initializations based on this information.
params.mime_type = blink::WebString::FromUTF8(actual_mime_type);
}
auto create_blocked_plugin = [&render_frame, &params, &info, &identifier,
&group_name](int template_id,
const base::string16& message) {
return CefPluginPlaceholder::CreateBlockedPlugin(
render_frame, params, info, identifier, group_name, template_id,
message, PowerSaverInfo());
};
blink::WebLocalFrame* frame = render_frame->GetWebFrame();
switch (status) {
case CefViewHostMsg_GetPluginInfo_Status::kNotFound: {
NOTREACHED();
break;
}
case CefViewHostMsg_GetPluginInfo_Status::kAllowed:
case CefViewHostMsg_GetPluginInfo_Status::kPlayImportantContent: {
// Delay loading plugins if prerendering.
// TODO(mmenke): In the case of prerendering, feed into
// CefContentRendererClient::CreatePlugin instead, to
// reduce the chance of future regressions.
bool is_prerendering = false;
bool power_saver_setting_on =
status ==
CefViewHostMsg_GetPluginInfo_Status::kPlayImportantContent;
PowerSaverInfo power_saver_info =
PowerSaverInfo::Get(render_frame, power_saver_setting_on, params,
info, frame->GetDocument().Url());
if (power_saver_info.blocked_for_background_tab || is_prerendering ||
!power_saver_info.poster_attribute.empty()) {
placeholder = CefPluginPlaceholder::CreateBlockedPlugin(
render_frame, params, info, identifier, group_name,
power_saver_info.poster_attribute.empty()
? IDR_BLOCKED_PLUGIN_HTML
: IDR_PLUGIN_POSTER_HTML,
l10n_util::GetStringFUTF16(IDS_PLUGIN_BLOCKED, group_name),
power_saver_info);
placeholder->set_blocked_for_prerendering(is_prerendering);
placeholder->AllowLoading();
break;
}
std::unique_ptr<content::PluginInstanceThrottler> throttler;
if (power_saver_info.power_saver_enabled) {
throttler = content::PluginInstanceThrottler::Create(
content::RenderFrame::DONT_RECORD_DECISION);
// PluginPreroller manages its own lifetime.
new CefPluginPreroller(
render_frame, params, info, identifier, group_name,
l10n_util::GetStringFUTF16(IDS_PLUGIN_BLOCKED, group_name),
throttler.get());
}
return render_frame->CreatePlugin(info, params, std::move(throttler));
}
case CefViewHostMsg_GetPluginInfo_Status::kDisabled: {
// Intentionally using the blocked plugin resources instead of the
// disabled plugin resources. This provides better messaging (no link to
// chrome://plugins) and adds testing support.
placeholder = create_blocked_plugin(
IDR_BLOCKED_PLUGIN_HTML,
l10n_util::GetStringFUTF16(IDS_PLUGIN_BLOCKED_BY_POLICY,
group_name));
break;
}
case CefViewHostMsg_GetPluginInfo_Status::kOutdatedBlocked: {
NOTREACHED() << "Plugin installation is not supported.";
break;
}
case CefViewHostMsg_GetPluginInfo_Status::kOutdatedDisallowed: {
placeholder = create_blocked_plugin(
IDR_BLOCKED_PLUGIN_HTML,
l10n_util::GetStringFUTF16(IDS_PLUGIN_OUTDATED, group_name));
break;
}
case CefViewHostMsg_GetPluginInfo_Status::kUnauthorized: {
placeholder = create_blocked_plugin(
IDR_BLOCKED_PLUGIN_HTML,
l10n_util::GetStringFUTF16(IDS_PLUGIN_NOT_AUTHORIZED, group_name));
placeholder->AllowLoading();
break;
}
case CefViewHostMsg_GetPluginInfo_Status::kBlocked: {
placeholder = create_blocked_plugin(
IDR_BLOCKED_PLUGIN_HTML,
l10n_util::GetStringFUTF16(IDS_PLUGIN_BLOCKED, group_name));
placeholder->AllowLoading();
content::RenderThread::Get()->RecordAction(
base::UserMetricsAction("Plugin_Blocked"));
break;
}
case CefViewHostMsg_GetPluginInfo_Status::kBlockedByPolicy: {
placeholder = create_blocked_plugin(
IDR_BLOCKED_PLUGIN_HTML,
l10n_util::GetStringFUTF16(IDS_PLUGIN_BLOCKED_BY_POLICY,
group_name));
content::RenderThread::Get()->RecordAction(
base::UserMetricsAction("Plugin_BlockedByPolicy"));
break;
}
default:
break;
}
}
placeholder->SetStatus(status);
return placeholder->plugin();
}
void CefContentRendererClient::BrowserCreated(
content::RenderView* render_view,
content::RenderFrame* render_frame) {
if (!render_view || !render_frame)
return;
// Swapped out RenderWidgets will be created in the parent/owner process for
// frames that are hosted in a separate process (e.g. guest views or OOP
// frames). Don't create any CEF objects for swapped out RenderWidgets.
content::RenderFrameImpl* render_frame_impl =
static_cast<content::RenderFrameImpl*>(render_frame);
if (render_frame_impl->GetRenderWidget()->is_swapped_out())
return;
// Don't create another browser or guest view object if one already exists for
// the view.
if (GetBrowserForView(render_view).get() || HasGuestViewForView(render_view))
return;
const int render_view_routing_id = render_view->GetRoutingID();
const int render_frame_routing_id = render_frame->GetRoutingID();
// Retrieve the browser information synchronously. This will also register
// the routing ids with the browser info object in the browser process.
CefProcessHostMsg_GetNewBrowserInfo_Params params;
content::RenderThread::Get()->Send(new CefProcessHostMsg_GetNewBrowserInfo(
render_view_routing_id, render_frame_routing_id, &params));
if (params.browser_id == 0) {
// The popup may have been canceled during creation.
return;
}
if (params.is_guest_view) {
// Don't create a CefBrowser for guest views.
guest_views_.insert(std::make_pair(
render_view, base::MakeUnique<CefGuestView>(render_view)));
return;
}
#if defined(OS_MACOSX)
// FIXME: It would be better if this API would be a callback from the
// WebKit layer, or if it would be exposed as an WebView instance method; the
// current implementation uses a static variable, and WebKit needs to be
// patched in order to make it work for each WebView instance
render_view->GetWebView()->SetUseExternalPopupMenusThisInstance(
!params.is_windowless);
#endif
CefRefPtr<CefBrowserImpl> browser = new CefBrowserImpl(
render_view, params.browser_id, params.is_popup, params.is_windowless);
browsers_.insert(std::make_pair(render_view, browser));
// Notify the render process handler.
CefRefPtr<CefApp> application = CefContentClient::Get()->application();
if (application.get()) {
CefRefPtr<CefRenderProcessHandler> handler =
application->GetRenderProcessHandler();
if (handler.get())
handler->OnBrowserCreated(browser.get());
}
}
void CefContentRendererClient::RunSingleProcessCleanupOnUIThread() {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
// Clean up the single existing RenderProcessHost.
content::RenderProcessHost* host = NULL;
content::RenderProcessHost::iterator iterator(
content::RenderProcessHost::AllHostsIterator());
if (!iterator.IsAtEnd()) {
host = iterator.GetCurrentValue();
host->Cleanup();
iterator.Advance();
DCHECK(iterator.IsAtEnd());
}
DCHECK(host);
// Clear the run_renderer_in_process() flag to avoid a DCHECK in the
// RenderProcessHost destructor.
content::RenderProcessHost::SetRunRendererInProcess(false);
// Deletion of the RenderProcessHost object will stop the render thread and
// result in a call to WillDestroyCurrentMessageLoop.
// Cleanup() will cause deletion to be posted as a task on the UI thread but
// this task will only execute when running in multi-threaded message loop
// mode (because otherwise the UI message loop has already stopped). Therefore
// we need to explicitly delete the object when not running in this mode.
if (!CefContext::Get()->settings().multi_threaded_message_loop)
delete host;
}
// Enable deprecation warnings for MSVC. See http://crbug.com/585142.
#if defined(OS_WIN)
#pragma warning(pop)
#endif
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