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0f8bf81d5a12a5d19eb9d5a304988cae19df43bc
cef/libcef/renderer/content_renderer_client.cc
Marshall Greenblatt b6e560e2ea Add plugin placeholder and policy support (issue #1708) 
- Default plugin loading policy can be specified using the new
  `--plugin-policy=[allow|block|detect]` command-line flag.
- Move CefRequestHandler::OnBeforePluginLoad to
  CefRequestContextHandler and add a new policy argument that
  supports different actions (allow, block, detect, disable) on a
  per-plugin-instance basis.
- Add CefContextMenuHandler::RunContextMenu for providing a custom
  context menu implementation.
- Add CefResourceBundleHandler::GetDataResourceForScale for
  returning scaled resources (issue #1272).
- Add CefResourceBundle for retrieving resources from the resource
  bundle (*.pak) files loaded by CEF during startup or via the
  CefResourceBundleHandler.
- Linux: Fix Debug build IO access warning with CefGetMimeType.
- cef_unittests: Move the refcounting implementation from TestHandler
  to subclasses in order to support interface inheritance from
  subclasses.
2015-09-22 12:29:21 +03:00

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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 "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_web_view_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_process_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/metrics/user_metrics_action.h"
#include "base/path_service.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/pepper_permission_util.h"
#include "chrome/grit/generated_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/spellchecker/spellcheck.h"
#include "chrome/renderer/spellchecker/spellcheck_provider.h"
#include "components/content_settings/core/common/content_settings_types.h"
#include "components/nacl/common/nacl_constants.h"
#include "components/printing/renderer/print_web_view_helper.h"
#include "components/web_cache/renderer/web_cache_render_process_observer.h"
#include "content/child/worker_task_runner.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/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 "extensions/renderer/dispatcher.h"
#include "extensions/renderer/dispatcher_delegate.h"
#include "extensions/renderer/extension_frame_helper.h"
#include "extensions/renderer/extension_helper.h"
#include "extensions/renderer/guest_view/extensions_guest_view_container.h"
#include "extensions/renderer/guest_view/extensions_guest_view_container_dispatcher.h"
#include "extensions/renderer/guest_view/mime_handler_view/mime_handler_view_container.h"
#include "ipc/ipc_sync_channel.h"
#include "media/base/media.h"
#include "third_party/WebKit/public/platform/WebPrerenderingSupport.h"
#include "third_party/WebKit/public/platform/WebString.h"
#include "third_party/WebKit/public/platform/WebURL.h"
#include "third_party/WebKit/public/web/WebConsoleMessage.h"
#include "third_party/WebKit/public/web/WebDocument.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/WebPluginParams.h"
#include "third_party/WebKit/public/web/WebPrerendererClient.h"
#include "third_party/WebKit/public/web/WebRuntimeFeatures.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 {}
};
// 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 {}
void willAddPrerender(blink::WebPrerender* prerender) override {}
};
// Implementation of SequencedTaskRunner for WebWorker threads.
class CefWebWorkerTaskRunner : public base::SequencedTaskRunner,
public content::WorkerTaskRunner::Observer {
public:
CefWebWorkerTaskRunner(content::WorkerTaskRunner* runner,
int worker_id)
: runner_(runner),
worker_id_(worker_id) {
DCHECK(runner_);
DCHECK_GT(worker_id_, 0);
DCHECK(RunsTasksOnCurrentThread());
// Adds an observer for the current thread.
runner_->AddStopObserver(this);
}
// SequencedTaskRunner methods:
bool PostNonNestableDelayedTask(
const tracked_objects::Location& from_here,
const base::Closure& task,
base::TimeDelta delay) override {
return PostDelayedTask(from_here, task, delay);
}
// TaskRunner methods:
bool PostDelayedTask(const tracked_objects::Location& from_here,
const base::Closure& task,
base::TimeDelta delay) override {
if (delay != base::TimeDelta())
LOG(WARNING) << "Delayed tasks are not supported on WebWorker threads";
runner_->PostTask(worker_id_, task);
return true;
}
bool RunsTasksOnCurrentThread() const override {
return (runner_->CurrentWorkerId() == worker_id_);
}
// WorkerTaskRunner::Observer methods:
void OnWorkerRunLoopStopped() override {
CefContentRendererClient::Get()->RemoveWorkerTaskRunner(worker_id_);
}
private:
content::WorkerTaskRunner* runner_;
int worker_id_;
};
void IsGuestViewApiAvailableToScriptContext(
bool* api_is_available,
extensions::ScriptContext* context) {
if (context->GetAvailability("guestViewInternal").is_available()) {
*api_is_available = true;
}
}
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] = additional_names[i];
values[existing_size + i] = additional_values[i];
}
existing_names->swap(names);
existing_values->swap(values);
}
std::string GetPluginInstancePosterAttribute(
const blink::WebPluginParams& params) {
DCHECK_EQ(params.attributeNames.size(), params.attributeValues.size());
for (size_t i = 0; i < params.attributeNames.size(); ++i) {
if (params.attributeNames[i].utf8() == "poster" &&
!params.attributeValues[i].isEmpty()) {
return params.attributeValues[i].utf8();
}
}
return std::string();
}
} // namespace
CefContentRendererClient::CefContentRendererClient()
: devtools_agent_count_(0),
uncaught_exception_stack_size_(0),
single_process_cleanup_complete_(false) {
}
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();
}
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.
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_standard) {
// Standard schemes must also be registered as CORS enabled to support
// CORS-restricted requests (for example, XMLHttpRequest redirects).
blink::WebSecurityPolicy::registerURLSchemeAsCORSEnabled(scheme);
}
if (info.is_local)
blink::WebSecurityPolicy::registerURLSchemeAsLocal(scheme);
if (info.is_display_isolated)
blink::WebSecurityPolicy::registerURLSchemeAsDisplayIsolated(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_);
// And do the same for any WebWorker threads.
WorkerTaskRunnerMap map_copy;
{
base::AutoLock lock_scope(worker_task_runner_lock_);
map_copy = worker_task_runner_map_;
}
WorkerTaskRunnerMap::const_iterator it = map_copy.begin();
for (; it != map_copy.end(); ++it) {
it->second->PostTask(FROM_HERE,
base::Bind(CefV8SetUncaughtExceptionStackSize,
uncaught_exception_stack_size_));
}
}
}
scoped_refptr<base::SequencedTaskRunner>
CefContentRendererClient::GetCurrentTaskRunner() {
// Check if currently on the render thread.
if (CEF_CURRENTLY_ON_RT())
return render_task_runner_;
// Check if a WebWorker exists for the current thread.
content::WorkerTaskRunner* worker_runner =
content::WorkerTaskRunner::Instance();
int worker_id = worker_runner->CurrentWorkerId();
if (worker_id > 0) {
base::AutoLock lock_scope(worker_task_runner_lock_);
WorkerTaskRunnerMap::const_iterator it =
worker_task_runner_map_.find(worker_id);
if (it != worker_task_runner_map_.end())
return it->second;
scoped_refptr<base::SequencedTaskRunner> task_runner =
new CefWebWorkerTaskRunner(worker_runner, worker_id);
worker_task_runner_map_[worker_id] = task_runner;
return task_runner;
}
return NULL;
}
scoped_refptr<base::SequencedTaskRunner>
CefContentRendererClient::GetWorkerTaskRunner(int worker_id) {
base::AutoLock lock_scope(worker_task_runner_lock_);
WorkerTaskRunnerMap::const_iterator it =
worker_task_runner_map_.find(worker_id);
if (it != worker_task_runner_map_.end())
return it->second;
return NULL;
}
void CefContentRendererClient::RemoveWorkerTaskRunner(int worker_id) {
base::AutoLock lock_scope(worker_task_runner_lock_);
WorkerTaskRunnerMap::iterator it = worker_task_runner_map_.find(worker_id);
if (it != worker_task_runner_map_.end())
worker_task_runner_map_.erase(it);
}
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 CefRenderProcessObserver());
web_cache_observer_.reset(new web_cache::WebCacheRenderProcessObserver());
content::RenderThread* thread = content::RenderThread::Get();
thread->AddObserver(observer_.get());
thread->AddObserver(web_cache_observer_.get());
thread->GetChannel()->AddFilter(new CefRenderMessageFilter);
thread->RegisterExtension(extensions_v8::LoadTimesExtension::Get());
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());
// 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;
#if defined(OS_MACOSX)
if (base::mac::IsOSLionOrLater()) {
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_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());
extension_dispatcher_delegate_.reset(new extensions::DispatcherDelegate());
// Must be initialized after ExtensionsRendererClient.
extension_dispatcher_.reset(
new extensions::Dispatcher(extension_dispatcher_delegate_.get()));
thread->AddObserver(extension_dispatcher_.get());
guest_view_container_dispatcher_.reset(
new extensions::ExtensionsGuestViewContainerDispatcher());
thread->AddObserver(guest_view_container_dispatcher_.get());
}
// 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);
}
}
}
void CefContentRendererClient::RenderFrameCreated(
content::RenderFrame* render_frame) {
new CefRenderFrameObserver(render_frame);
new CefPepperHelper(render_frame);
if (extensions::ExtensionsEnabled()) {
new extensions::ExtensionFrameHelper(render_frame,
extension_dispatcher_.get());
extension_dispatcher_->OnRenderFrameCreated(render_frame);
}
BrowserCreated(render_frame->GetRenderView(), render_frame);
}
void CefContentRendererClient::RenderViewCreated(
content::RenderView* render_view) {
new CefPrerendererClient(render_view);
new printing::PrintWebViewHelper(
render_view,
make_scoped_ptr<printing::PrintWebViewHelper::Delegate>(
new extensions::CefPrintWebViewHelperDelegate()));
if (extensions::ExtensionsEnabled()) {
new extensions::ExtensionHelper(render_view, extension_dispatcher_.get());
}
const base::CommandLine* command_line =
base::CommandLine::ForCurrentProcess();
if (!command_line->HasSwitch(switches::kDisableSpellChecking))
new SpellCheckProvider(render_view, spellcheck_.get());
BrowserCreated(render_view, render_view->GetMainRenderFrame());
}
bool CefContentRendererClient::OverrideCreatePlugin(
content::RenderFrame* render_frame,
blink::WebLocalFrame* frame,
const blink::WebPluginParams& params,
blink::WebPlugin** plugin) {
if (!extensions::ExtensionsEnabled())
return false;
// Based on ChromeContentRendererClient::OverrideCreatePlugin.
std::string orig_mime_type = params.mimeType.utf8();
if (orig_mime_type == content::kBrowserPluginMimeType) {
bool guest_view_api_available = false;
extension_dispatcher_->script_context_set().ForEach(
render_frame,
base::Bind(&IsGuestViewApiAvailableToScriptContext,
&guest_view_api_available));
if (guest_view_api_available)
return false;
}
GURL url(params.url);
CefViewHostMsg_GetPluginInfo_Output output;
blink::WebString top_origin = frame->top()->securityOrigin().toString();
render_frame->Send(new CefViewHostMsg_GetPluginInfo(
render_frame->GetRoutingID(), url, GURL(top_origin), orig_mime_type,
&output));
*plugin = CreatePlugin(render_frame, frame, params, output);
return true;
}
bool CefContentRendererClient::HandleNavigation(
content::RenderFrame* render_frame,
content::DocumentState* document_state,
int opener_id,
blink::WebFrame* frame,
const blink::WebURLRequest& request,
blink::WebNavigationType type,
blink::WebNavigationPolicy default_policy,
bool is_redirect) {
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);
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::WebNavigationTypeLinkClicked:
navigation_type = NAVIGATION_LINK_CLICKED;
break;
case blink::WebNavigationTypeFormSubmitted:
navigation_type = NAVIGATION_FORM_SUBMITTED;
break;
case blink::WebNavigationTypeBackForward:
navigation_type = NAVIGATION_BACK_FORWARD;
break;
case blink::WebNavigationTypeReload:
navigation_type = NAVIGATION_RELOAD;
break;
case blink::WebNavigationTypeFormResubmitted:
navigation_type = NAVIGATION_FORM_RESUBMITTED;
break;
case blink::WebNavigationTypeOther:
navigation_type = NAVIGATION_OTHER;
break;
}
if (handler->OnBeforeNavigation(browserPtr.get(), framePtr.get(),
requestPtr.get(), navigation_type,
is_redirect)) {
return true;
}
}
}
}
return false;
}
content::BrowserPluginDelegate*
CefContentRendererClient::CreateBrowserPluginDelegate(
content::RenderFrame* render_frame,
const std::string& mime_type,
const GURL& original_url) {
DCHECK(extensions::ExtensionsEnabled());
if (mime_type == content::kBrowserPluginMimeType) {
return new extensions::ExtensionsGuestViewContainer(render_frame);
} else {
return new extensions::MimeHandlerViewContainer(
render_frame, mime_type, original_url);
}
}
void CefContentRendererClient::AddKeySystems(
std::vector<media::KeySystemInfo>* key_systems) {
AddCefKeySystems(key_systems);
}
void CefContentRendererClient::WillDestroyCurrentMessageLoop() {
base::AutoLock lock_scope(single_process_cleanup_lock_);
single_process_cleanup_complete_ = true;
}
// static
bool CefContentRendererClient::IsExtensionOrSharedModuleWhitelisted(
const GURL& url, const std::set<std::string>& whitelist) {
DCHECK(extensions::ExtensionsEnabled());
const extensions::ExtensionSet* extension_set =
CefContentRendererClient::Get()->extension_dispatcher_->extensions();
return chrome::IsExtensionOrSharedModuleWhitelisted(url, extension_set,
whitelist);
}
// static
blink::WebPlugin* CefContentRendererClient::CreatePlugin(
content::RenderFrame* render_frame,
blink::WebLocalFrame* 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.mimeType.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, frame, original_params);
} else {
// TODO(bauerb): This should be in content/.
blink::WebPluginParams params(original_params);
for (size_t i = 0; i < info.mime_types.size(); ++i) {
if (info.mime_types[i].mime_type == actual_mime_type) {
AppendParams(info.mime_types[i].additional_param_names,
info.mime_types[i].additional_param_values,
&params.attributeNames, &params.attributeValues);
break;
}
}
if (params.mimeType.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.mimeType = blink::WebString::fromUTF8(actual_mime_type.c_str());
}
auto create_blocked_plugin =
[&render_frame, &frame, &params, &info, &identifier, &group_name](
int template_id, const base::string16& message) {
return CefPluginPlaceholder::CreateBlockedPlugin(
render_frame, frame, params, info, identifier, group_name,
template_id, message, PlaceholderPosterInfo());
};
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_enabled =
status ==
CefViewHostMsg_GetPluginInfo_Status::kPlayImportantContent;
bool blocked_for_background_tab =
render_frame->IsHidden() && power_saver_enabled;
PlaceholderPosterInfo poster_info;
if (power_saver_enabled) {
poster_info.poster_attribute =
GetPluginInstancePosterAttribute(params);
poster_info.base_url = frame->document().url();
}
if (blocked_for_background_tab || is_prerendering ||
!poster_info.poster_attribute.empty()) {
placeholder = CefPluginPlaceholder::CreateBlockedPlugin(
render_frame, frame, params, info, identifier, group_name,
poster_info.poster_attribute.empty() ? IDR_BLOCKED_PLUGIN_HTML
: IDR_PLUGIN_POSTER_HTML,
l10n_util::GetStringFUTF16(IDS_PLUGIN_BLOCKED, group_name),
poster_info);
placeholder->set_blocked_for_background_tab(
blocked_for_background_tab);
placeholder->set_blocked_for_prerendering(is_prerendering);
placeholder->set_power_saver_enabled(power_saver_enabled);
placeholder->AllowLoading();
break;
}
scoped_ptr<content::PluginInstanceThrottler> throttler;
if (power_saver_enabled) {
throttler = content::PluginInstanceThrottler::Create();
// PluginPreroller manages its own lifetime.
new CefPluginPreroller(
render_frame, frame, params, info, identifier, group_name,
l10n_util::GetStringFUTF16(IDS_PLUGIN_BLOCKED, group_name),
throttler.get());
}
return render_frame->CreatePlugin(frame, info, params,
throttler.Pass());
}
case CefViewHostMsg_GetPluginInfo_Status::kNPAPINotSupported: {
content::RenderThread::Get()->RecordAction(
base::UserMetricsAction("Plugin_NPAPINotSupported"));
placeholder = create_blocked_plugin(
IDR_BLOCKED_PLUGIN_HTML,
l10n_util::GetStringUTF16(IDS_PLUGIN_NOT_SUPPORTED_METRO));
break;
}
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;
}
}
}
placeholder->SetStatus(status);
return placeholder->plugin();
}
void CefContentRendererClient::BrowserCreated(
content::RenderView* render_view,
content::RenderFrame* render_frame) {
// 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->GetRoutingID(),
render_frame->GetRoutingID(),
&params));
DCHECK_GT(params.browser_id, 0);
if (params.is_mime_handler_view) {
// Don't create a CefBrowser for mime handler views.
return;
}
// Don't create another browser object if one already exists for the view.
if (GetBrowserForView(render_view).get())
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;
}
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