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chrome_frame_automation.cc
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// Copyright (c) 2011 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 "chrome_frame/chrome_frame_automation.h"
#include "base/callback.h"
#include "base/command_line.h"
#include "base/compiler_specific.h"
#include "base/debug/trace_event.h"
#include "base/file_util.h"
#include "base/file_version_info.h"
#include "base/lazy_instance.h"
#include "base/logging.h"
#include "base/path_service.h"
#include "base/process_util.h"
#include "base/string_util.h"
#include "base/synchronization/lock.h"
#include "base/synchronization/waitable_event.h"
#include "base/sys_info.h"
#include "base/utf_string_conversions.h"
#include "chrome/app/client_util.h"
#include "chrome/common/automation_messages.h"
#include "chrome/common/chrome_constants.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/test/automation/tab_proxy.h"
#include "chrome_frame/chrome_launcher_utils.h"
#include "chrome_frame/crash_reporting/crash_metrics.h"
#include "chrome_frame/custom_sync_call_context.h"
#include "chrome_frame/navigation_constraints.h"
#include "chrome_frame/simple_resource_loader.h"
#include "chrome_frame/utils.h"
#include "ui/base/ui_base_switches.h"
#ifdef NDEBUG
int64 kAutomationServerReasonableLaunchDelay = 1000; // in milliseconds
#else
int64 kAutomationServerReasonableLaunchDelay = 1000 * 10;
#endif
class ChromeFrameAutomationProxyImpl::TabProxyNotificationMessageFilter
: public IPC::ChannelProxy::MessageFilter {
public:
explicit TabProxyNotificationMessageFilter(AutomationHandleTracker* tracker)
: tracker_(tracker) {
}
void AddTabProxy(AutomationHandle tab_proxy) {
base::AutoLock lock(lock_);
tabs_list_.push_back(tab_proxy);
}
void RemoveTabProxy(AutomationHandle tab_proxy) {
base::AutoLock lock(lock_);
tabs_list_.remove(tab_proxy);
}
virtual bool OnMessageReceived(const IPC::Message& message) {
if (message.is_reply())
return false;
if (!ChromeFrameDelegateImpl::IsTabMessage(message))
return false;
// Get AddRef-ed pointer to corresponding TabProxy object
TabProxy* tab = static_cast<TabProxy*>(tracker_->GetResource(
message.routing_id()));
bool handled = false;
if (tab) {
handled = tab->OnMessageReceived(message);
tab->Release();
} else {
DLOG(ERROR) << "Failed to find TabProxy for tab:" << message.routing_id();
// To prevent subsequent crashes, we set handled to true in this case.
handled = true;
}
return handled;
}
virtual void OnChannelError() {
std::list<AutomationHandle>::const_iterator iter = tabs_list_.begin();
for (; iter != tabs_list_.end(); ++iter) {
// Get AddRef-ed pointer to corresponding TabProxy object
TabProxy* tab = static_cast<TabProxy*>(tracker_->GetResource(*iter));
if (tab) {
tab->OnChannelError();
tab->Release();
}
}
}
private:
AutomationHandleTracker* tracker_;
std::list<AutomationHandle> tabs_list_;
base::Lock lock_;
};
class ChromeFrameAutomationProxyImpl::CFMsgDispatcher
: public SyncMessageReplyDispatcher {
public:
CFMsgDispatcher() : SyncMessageReplyDispatcher() {}
protected:
virtual bool HandleMessageType(const IPC::Message& msg,
SyncMessageCallContext* context) {
switch (context->message_type()) {
case AutomationMsg_CreateExternalTab::ID:
case AutomationMsg_ConnectExternalTab::ID:
InvokeCallback<CreateExternalTabContext>(msg, context);
break;
case AutomationMsg_NavigateExternalTabAtIndex::ID:
case AutomationMsg_NavigateInExternalTab::ID:
InvokeCallback<BeginNavigateContext>(msg, context);
break;
case AutomationMsg_RunUnloadHandlers::ID:
InvokeCallback<UnloadContext>(msg, context);
break;
default:
NOTREACHED();
}
return true;
}
};
ChromeFrameAutomationProxyImpl::ChromeFrameAutomationProxyImpl(
AutomationProxyCacheEntry* entry,
std::string channel_id, int launch_timeout)
: AutomationProxy(launch_timeout, false), proxy_entry_(entry) {
TRACE_EVENT_BEGIN_ETW("chromeframe.automationproxy", this, "");
InitializeChannel(channel_id, false);
sync_ = new CFMsgDispatcher();
message_filter_ = new TabProxyNotificationMessageFilter(tracker_.get());
// Order of filters is not important.
channel_->AddFilter(message_filter_.get());
channel_->AddFilter(sync_.get());
}
ChromeFrameAutomationProxyImpl::~ChromeFrameAutomationProxyImpl() {
TRACE_EVENT_END_ETW("chromeframe.automationproxy", this, "");
}
void ChromeFrameAutomationProxyImpl::SendAsAsync(
IPC::SyncMessage* msg,
SyncMessageReplyDispatcher::SyncMessageCallContext* context, void* key) {
sync_->Push(msg, context, key);
channel_->ChannelProxy::Send(msg);
}
void ChromeFrameAutomationProxyImpl::CancelAsync(void* key) {
sync_->Cancel(key);
}
void ChromeFrameAutomationProxyImpl::OnChannelError() {
DLOG(ERROR) << "Automation server died";
if (proxy_entry_) {
proxy_entry_->OnChannelError();
} else {
NOTREACHED();
}
}
scoped_refptr<TabProxy> ChromeFrameAutomationProxyImpl::CreateTabProxy(
int handle) {
DCHECK(tracker_->GetResource(handle) == NULL);
TabProxy* tab_proxy = new TabProxy(this, tracker_.get(), handle);
if (tab_proxy != NULL)
message_filter_->AddTabProxy(handle);
return tab_proxy;
}
void ChromeFrameAutomationProxyImpl::ReleaseTabProxy(AutomationHandle handle) {
message_filter_->RemoveTabProxy(handle);
}
struct LaunchTimeStats {
#ifndef NDEBUG
LaunchTimeStats() {
launch_time_begin_ = base::Time::Now();
}
void Dump() {
base::TimeDelta launch_time = base::Time::Now() - launch_time_begin_;
UMA_HISTOGRAM_TIMES("ChromeFrame.AutomationServerLaunchTime", launch_time);
const int64 launch_milliseconds = launch_time.InMilliseconds();
if (launch_milliseconds > kAutomationServerReasonableLaunchDelay) {
LOG(WARNING) << "Automation server launch took longer than expected: " <<
launch_milliseconds << " ms.";
}
}
base::Time launch_time_begin_;
#else
void Dump() {}
#endif
};
DISABLE_RUNNABLE_METHOD_REFCOUNT(AutomationProxyCacheEntry);
AutomationProxyCacheEntry::AutomationProxyCacheEntry(
ChromeFrameLaunchParams* params, LaunchDelegate* delegate)
: profile_name(params->profile_name()),
launch_result_(AUTOMATION_LAUNCH_RESULT_INVALID) {
DCHECK(delegate);
thread_.reset(new base::Thread(WideToASCII(profile_name).c_str()));
thread_->Start();
// Use scoped_refptr so that the params will get released when the task
// has been run.
scoped_refptr<ChromeFrameLaunchParams> ref_params(params);
thread_->message_loop()->PostTask(FROM_HERE, NewRunnableMethod(this,
&AutomationProxyCacheEntry::CreateProxy, ref_params, delegate));
}
AutomationProxyCacheEntry::~AutomationProxyCacheEntry() {
DVLOG(1) << __FUNCTION__ << profile_name;
// Attempt to fix chrome_frame_tests crash seen at times on the IE6/IE7
// builders. It appears that there are cases when we can enter here when the
// AtExitManager is tearing down the global ProxyCache which causes a crash
// while tearing down the AutomationProxy object due to a NULL MessageLoop
// The AutomationProxy class uses the SyncChannel which assumes the existence
// of a MessageLoop instance.
// We leak the AutomationProxy pointer here to avoid a crash.
if (MessageLoop::current() == NULL) {
proxy_.release();
}
}
void AutomationProxyCacheEntry::CreateProxy(ChromeFrameLaunchParams* params,
LaunchDelegate* delegate) {
DCHECK(IsSameThread(base::PlatformThread::CurrentId()));
DCHECK(delegate);
DCHECK(params);
DCHECK(proxy_.get() == NULL);
// We *must* create automationproxy in a thread that has message loop,
// since SyncChannel::Context construction registers event to be watched
// through ObjectWatcher which subscribes for the current thread message loop
// destruction notification.
// At same time we must destroy/stop the thread from another thread.
std::string channel_id = AutomationProxy::GenerateChannelID();
ChromeFrameAutomationProxyImpl* proxy =
new ChromeFrameAutomationProxyImpl(this, channel_id,
params->launch_timeout());
// Ensure that the automation proxy actually respects our choice on whether
// or not to check the version.
proxy->set_perform_version_check(params->version_check());
// Launch browser
scoped_ptr<CommandLine> command_line(
chrome_launcher::CreateLaunchCommandLine());
command_line->AppendSwitchASCII(switches::kAutomationClientChannelID,
channel_id);
// Run Chrome in Chrome Frame mode. In practice, this modifies the paths
// and registry keys that Chrome looks in via the BrowserDistribution
// mechanism.
command_line->AppendSwitch(switches::kChromeFrame);
// Chrome Frame never wants Chrome to start up with a First Run UI.
command_line->AppendSwitch(switches::kNoFirstRun);
command_line->AppendSwitch(switches::kDisablePopupBlocking);
// Disable the "Whoa! Chrome has crashed." dialog, because that isn't very
// useful for Chrome Frame users.
#ifndef NDEBUG
command_line->AppendSwitch(switches::kNoErrorDialogs);
#endif
// In headless mode runs like reliability test runs we want full crash dumps
// from chrome.
if (IsHeadlessMode())
command_line->AppendSwitch(switches::kFullMemoryCrashReport);
// In accessible mode automation tests expect renderer accessibility to be
// enabled in chrome.
if (IsAccessibleMode())
command_line->AppendSwitch(switches::kForceRendererAccessibility);
DVLOG(1) << "Profile path: " << params->profile_path().value();
command_line->AppendSwitchPath(switches::kUserDataDir,
params->profile_path());
// Ensure that Chrome is running the specified version of chrome.dll.
command_line->AppendSwitchNative(switches::kChromeVersion,
GetCurrentModuleVersion());
if (!params->language().empty())
command_line->AppendSwitchNative(switches::kLang, params->language());
std::wstring command_line_string(command_line->GetCommandLineString());
// If there are any extra arguments, append them to the command line.
if (!params->extra_arguments().empty()) {
command_line_string += L' ' + params->extra_arguments();
}
automation_server_launch_start_time_ = base::TimeTicks::Now();
if (!base::LaunchProcess(command_line_string, base::LaunchOptions(), NULL)) {
// We have no code for launch failure.
launch_result_ = AUTOMATION_LAUNCH_RESULT_INVALID;
} else {
// Launch timeout may happen if the new instance tries to communicate
// with an existing Chrome instance that is hung and displays msgbox
// asking to kill the previous one. This could be easily observed if the
// already running Chrome instance is running as high-integrity process
// (started with "Run as Administrator" or launched by another high
// integrity process) hence our medium-integrity process
// cannot SendMessage to it with request to activate itself.
// TODO(stoyan) AutomationProxy eats Hello message, hence installing
// message filter is pointless, we can leverage ObjectWatcher and use
// system thread pool to notify us when proxy->AppLaunch event is signaled.
LaunchTimeStats launch_stats;
// Wait for the automation server launch result, then stash away the
// version string it reported.
launch_result_ = proxy->WaitForAppLaunch();
launch_stats.Dump();
base::TimeDelta delta =
base::TimeTicks::Now() - automation_server_launch_start_time_;
if (launch_result_ == AUTOMATION_SUCCESS) {
UMA_HISTOGRAM_TIMES(
"ChromeFrame.AutomationServerLaunchSuccessTime", delta);
} else {
UMA_HISTOGRAM_TIMES(
"ChromeFrame.AutomationServerLaunchFailedTime", delta);
}
UMA_HISTOGRAM_CUSTOM_COUNTS("ChromeFrame.LaunchResult",
launch_result_,
AUTOMATION_SUCCESS,
AUTOMATION_CREATE_TAB_FAILED,
AUTOMATION_CREATE_TAB_FAILED + 1);
}
TRACE_EVENT_END_ETW("chromeframe.createproxy", this, "");
// Finally set the proxy.
proxy_.reset(proxy);
launch_delegates_.push_back(delegate);
delegate->LaunchComplete(proxy_.get(), launch_result_);
}
void AutomationProxyCacheEntry::RemoveDelegate(LaunchDelegate* delegate,
base::WaitableEvent* done,
bool* was_last_delegate) {
DCHECK(IsSameThread(base::PlatformThread::CurrentId()));
DCHECK(delegate);
DCHECK(done);
DCHECK(was_last_delegate);
*was_last_delegate = false;
LaunchDelegates::iterator it = std::find(launch_delegates_.begin(),
launch_delegates_.end(), delegate);
if (it == launch_delegates_.end()) {
NOTREACHED();
} else {
if (launch_delegates_.size() == 1) {
*was_last_delegate = true;
// Process pending notifications.
thread_->message_loop()->RunAllPending();
// Take down the proxy since we no longer have any clients.
// Make sure we only do this once all pending messages have been cleared.
proxy_.reset(NULL);
}
// Be careful to remove from the list after running pending
// tasks. Otherwise the delegate being removed might miss out
// on pending notifications such as LaunchComplete.
launch_delegates_.erase(it);
}
done->Signal();
}
void AutomationProxyCacheEntry::AddDelegate(LaunchDelegate* delegate) {
DCHECK(IsSameThread(base::PlatformThread::CurrentId()));
DCHECK(std::find(launch_delegates_.begin(),
launch_delegates_.end(),
delegate) == launch_delegates_.end())
<< "Same delegate being added twice";
DCHECK(launch_result_ != AUTOMATION_LAUNCH_RESULT_INVALID);
launch_delegates_.push_back(delegate);
delegate->LaunchComplete(proxy_.get(), launch_result_);
}
void AutomationProxyCacheEntry::OnChannelError() {
DCHECK(IsSameThread(base::PlatformThread::CurrentId()));
launch_result_ = AUTOMATION_SERVER_CRASHED;
LaunchDelegates::const_iterator it = launch_delegates_.begin();
for (; it != launch_delegates_.end(); ++it) {
(*it)->AutomationServerDied();
}
}
DISABLE_RUNNABLE_METHOD_REFCOUNT(ProxyFactory);
ProxyFactory::ProxyFactory() {
}
ProxyFactory::~ProxyFactory() {
for (size_t i = 0; i < proxies_.container().size(); ++i) {
DWORD result = proxies_[i]->WaitForThread(0);
if (WAIT_OBJECT_0 != result)
// TODO(stoyan): Don't leak proxies on exit.
DLOG(ERROR) << "Proxies leaked on exit.";
}
}
void ProxyFactory::GetAutomationServer(
LaunchDelegate* delegate, ChromeFrameLaunchParams* params,
void** automation_server_id) {
TRACE_EVENT_BEGIN_ETW("chromeframe.createproxy", this, "");
scoped_refptr<AutomationProxyCacheEntry> entry;
// Find already existing launcher thread for given profile
base::AutoLock lock(lock_);
for (size_t i = 0; i < proxies_.container().size(); ++i) {
if (proxies_[i]->IsSameProfile(params->profile_name())) {
entry = proxies_[i];
break;
}
}
if (entry == NULL) {
DVLOG(1) << __FUNCTION__ << " creating new proxy entry";
entry = new AutomationProxyCacheEntry(params, delegate);
proxies_.container().push_back(entry);
} else if (delegate) {
// Notify the new delegate of the launch status from the worker thread
// and add it to the list of delegates.
entry->message_loop()->PostTask(FROM_HERE, NewRunnableMethod(entry.get(),
&AutomationProxyCacheEntry::AddDelegate, delegate));
}
DCHECK(automation_server_id != NULL);
DCHECK(!entry->IsSameThread(base::PlatformThread::CurrentId()));
*automation_server_id = entry;
}
bool ProxyFactory::ReleaseAutomationServer(void* server_id,
LaunchDelegate* delegate) {
if (!server_id) {
NOTREACHED();
return false;
}
AutomationProxyCacheEntry* entry =
reinterpret_cast<AutomationProxyCacheEntry*>(server_id);
#ifndef NDEBUG
lock_.Acquire();
Vector::ContainerType::iterator it = std::find(proxies_.container().begin(),
proxies_.container().end(),
entry);
DCHECK(it != proxies_.container().end());
DCHECK(!entry->IsSameThread(base::PlatformThread::CurrentId()));
lock_.Release();
#endif
// AddRef the entry object as we might need to take it out of the proxy
// stack and then uninitialize the entry.
entry->AddRef();
bool last_delegate = false;
if (delegate) {
base::WaitableEvent done(true, false);
entry->message_loop()->PostTask(FROM_HERE, NewRunnableMethod(entry,
&AutomationProxyCacheEntry::RemoveDelegate, delegate, &done,
&last_delegate));
done.Wait();
}
if (last_delegate) {
lock_.Acquire();
Vector::ContainerType::iterator it = std::find(proxies_.container().begin(),
proxies_.container().end(),
entry);
proxies_.container().erase(it);
lock_.Release();
}
entry->Release();
return true;
}
static base::LazyInstance<ProxyFactory,
base::LeakyLazyInstanceTraits<ProxyFactory> >
g_proxy_factory(base::LINKER_INITIALIZED);
template <> struct RunnableMethodTraits<ChromeFrameAutomationClient> {
static void RetainCallee(ChromeFrameAutomationClient* obj) {}
static void ReleaseCallee(ChromeFrameAutomationClient* obj) {}
};
ChromeFrameAutomationClient::ChromeFrameAutomationClient()
: chrome_frame_delegate_(NULL),
chrome_window_(NULL),
tab_window_(NULL),
parent_window_(NULL),
automation_server_(NULL),
automation_server_id_(NULL),
ui_thread_id_(NULL),
init_state_(UNINITIALIZED),
use_chrome_network_(false),
proxy_factory_(g_proxy_factory.Pointer()),
handle_top_level_requests_(false),
tab_handle_(-1),
session_id_(-1),
external_tab_cookie_(0),
url_fetcher_(NULL),
url_fetcher_flags_(PluginUrlRequestManager::NOT_THREADSAFE),
navigate_after_initialization_(false),
route_all_top_level_navigations_(false) {
}
ChromeFrameAutomationClient::~ChromeFrameAutomationClient() {
// Uninitialize must be called prior to the destructor
DCHECK(automation_server_ == NULL);
}
bool ChromeFrameAutomationClient::Initialize(
ChromeFrameDelegate* chrome_frame_delegate,
ChromeFrameLaunchParams* chrome_launch_params) {
DCHECK(!IsWindow());
chrome_frame_delegate_ = chrome_frame_delegate;
#ifndef NDEBUG
if (chrome_launch_params_ && chrome_launch_params_ != chrome_launch_params) {
DCHECK_EQ(chrome_launch_params_->url(), chrome_launch_params->url());
DCHECK_EQ(chrome_launch_params_->referrer(),
chrome_launch_params->referrer());
}
#endif
chrome_launch_params_ = chrome_launch_params;
ui_thread_id_ = base::PlatformThread::CurrentId();
#ifndef NDEBUG
// In debug mode give more time to work with a debugger.
if (IsDebuggerPresent()) {
// Don't use INFINITE (which is -1) or even MAXINT since we will convert
// from milliseconds to microseconds when stored in a base::TimeDelta,
// thus * 1000. An hour should be enough.
chrome_launch_params_->set_launch_timeout(60 * 60 * 1000);
} else {
DCHECK_LT(chrome_launch_params_->launch_timeout(),
MAXINT / 2000);
chrome_launch_params_->set_launch_timeout(
chrome_launch_params_->launch_timeout() * 2);
}
#endif // NDEBUG
// Create a window on the UI thread for marshaling messages back and forth
// from the IPC thread. This window cannot be a message only window as the
// external chrome tab window is created as a child of this window. This
// window is eventually reparented to the ActiveX plugin window.
if (!Create(GetDesktopWindow(), NULL, NULL,
WS_CHILDWINDOW | WS_CLIPCHILDREN | WS_CLIPSIBLINGS,
WS_EX_TOOLWINDOW)) {
NOTREACHED();
return false;
}
// Keep object in memory, while the window is alive.
// Corresponding Release is in OnFinalMessage();
AddRef();
// Mark our state as initializing. We'll reach initialized once
// InitializeComplete is called successfully.
init_state_ = INITIALIZING;
HRESULT hr = S_OK;
if (chrome_launch_params_->url().is_valid())
navigate_after_initialization_ = false;
proxy_factory_->GetAutomationServer(static_cast<LaunchDelegate*>(this),
chrome_launch_params_, &automation_server_id_);
return true;
}
void ChromeFrameAutomationClient::Uninitialize() {
if (init_state_ == UNINITIALIZED) {
DLOG(WARNING) << __FUNCTION__ << ": Automation client not initialized";
return;
}
init_state_ = UNINITIALIZING;
// Called from client's FinalRelease() / destructor
if (url_fetcher_) {
// Clean up any outstanding requests
url_fetcher_->StopAllRequests();
url_fetcher_ = NULL;
}
if (tab_) {
tab_->RemoveObserver(this);
if (automation_server_)
automation_server_->ReleaseTabProxy(tab_->handle());
tab_ = NULL; // scoped_refptr::Release
}
// Wait for the background thread to exit.
ReleaseAutomationServer();
// We must destroy the window, since if there are pending tasks
// window procedure may be invoked after DLL is unloaded.
// Unfortunately pending tasks are leaked.
if (::IsWindow(m_hWnd))
DestroyWindow();
// DCHECK(navigate_after_initialization_ == false);
handle_top_level_requests_ = false;
ui_thread_id_ = 0;
chrome_frame_delegate_ = NULL;
init_state_ = UNINITIALIZED;
}
bool ChromeFrameAutomationClient::InitiateNavigation(
const std::string& url,
const std::string& referrer,
NavigationConstraints* navigation_constraints) {
if (url.empty())
return false;
GURL parsed_url(url);
// Catch invalid URLs early.
// Can we allow this navigation to happen?
if (!CanNavigate(parsed_url, navigation_constraints)) {
DLOG(ERROR) << __FUNCTION__ << " Not allowing navigation to: " << url;
return false;
}
// If we are not yet initialized ignore attempts to navigate to the same url.
// Navigation attempts to the same URL could occur if the automation client
// was reused for a new active document instance.
if (!chrome_launch_params_ || is_initialized() ||
parsed_url != chrome_launch_params_->url()) {
// Important: Since we will be using the referrer_ variable from a
// different thread, we need to force a new std::string buffer instance for
// the referrer_ GURL variable. Otherwise we can run into strangeness when
// the GURL is accessed and it could result in a bad URL that can cause the
// referrer to be dropped or something worse.
GURL referrer_gurl(referrer.c_str());
if (!chrome_launch_params_) {
FilePath profile_path;
chrome_launch_params_ = new ChromeFrameLaunchParams(parsed_url,
referrer_gurl, profile_path, L"", SimpleResourceLoader::GetLanguage(),
L"", false, false, route_all_top_level_navigations_);
} else {
chrome_launch_params_->set_referrer(referrer_gurl);
chrome_launch_params_->set_url(parsed_url);
}
navigate_after_initialization_ = false;
if (is_initialized()) {
BeginNavigate();
} else {
navigate_after_initialization_ = true;
}
}
return true;
}
bool ChromeFrameAutomationClient::NavigateToIndex(int index) {
// Could be NULL if we failed to launch Chrome in LaunchAutomationServer()
if (!automation_server_ || !tab_.get() || !tab_->is_valid()) {
return false;
}
DCHECK(::IsWindow(chrome_window_));
IPC::SyncMessage* msg = new AutomationMsg_NavigateExternalTabAtIndex(
tab_->handle(), index, NULL);
automation_server_->SendAsAsync(msg, new BeginNavigateContext(this),
this);
return true;
}
bool ChromeFrameAutomationClient::ForwardMessageFromExternalHost(
const std::string& message, const std::string& origin,
const std::string& target) {
// Could be NULL if we failed to launch Chrome in LaunchAutomationServer()
if (!is_initialized())
return false;
tab_->HandleMessageFromExternalHost(message, origin, target);
return true;
}
bool ChromeFrameAutomationClient::SetProxySettings(
const std::string& json_encoded_proxy_settings) {
if (!is_initialized())
return false;
automation_server_->SendProxyConfig(json_encoded_proxy_settings);
return true;
}
void ChromeFrameAutomationClient::BeginNavigate() {
// Could be NULL if we failed to launch Chrome in LaunchAutomationServer()
if (!automation_server_ || !tab_.get()) {
DLOG(WARNING) << "BeginNavigate - can't navigate.";
ReportNavigationError(AUTOMATION_MSG_NAVIGATION_ERROR,
chrome_launch_params_->url().spec());
return;
}
DCHECK(::IsWindow(chrome_window_));
if (!tab_->is_valid()) {
DLOG(WARNING) << "BeginNavigate - tab isn't valid.";
return;
}
IPC::SyncMessage* msg =
new AutomationMsg_NavigateInExternalTab(tab_->handle(),
chrome_launch_params_->url(), chrome_launch_params_->referrer(),
NULL);
automation_server_->SendAsAsync(msg, new BeginNavigateContext(this), this);
RECT client_rect = {0};
chrome_frame_delegate_->GetBounds(&client_rect);
Resize(client_rect.right - client_rect.left,
client_rect.bottom - client_rect.top,
SWP_NOACTIVATE | SWP_NOZORDER);
}
void ChromeFrameAutomationClient::BeginNavigateCompleted(
AutomationMsg_NavigationResponseValues result) {
if (result == AUTOMATION_MSG_NAVIGATION_ERROR)
ReportNavigationError(AUTOMATION_MSG_NAVIGATION_ERROR,
chrome_launch_params_->url().spec());
}
void ChromeFrameAutomationClient::FindInPage(const std::wstring& search_string,
FindInPageDirection forward,
FindInPageCase match_case,
bool find_next) {
DCHECK(tab_.get());
// What follows is quite similar to TabProxy::FindInPage() but uses
// the SyncMessageReplyDispatcher to avoid concerns about blocking
// synchronous messages.
AutomationMsg_Find_Params params;
params.unused = 0;
params.search_string = WideToUTF16Hack(search_string);
params.find_next = find_next;
params.match_case = (match_case == CASE_SENSITIVE);
params.forward = (forward == FWD);
IPC::SyncMessage* msg =
new AutomationMsg_Find(tab_->handle(), params, NULL, NULL);
automation_server_->SendAsAsync(msg, NULL, this);
}
void ChromeFrameAutomationClient::OnChromeFrameHostMoved() {
// Use a local var to avoid the small possibility of getting the tab_
// member be cleared while we try to use it.
// Note that TabProxy is a RefCountedThreadSafe object, so we should be OK.
scoped_refptr<TabProxy> tab(tab_);
// There also is a possibility that tab_ has not been set yet,
// so we still need to test for NULL.
if (tab)
tab->OnHostMoved();
}
void ChromeFrameAutomationClient::CreateExternalTab() {
AutomationLaunchResult launch_result = AUTOMATION_SUCCESS;
DCHECK(IsWindow());
DCHECK(automation_server_ != NULL);
if (chrome_launch_params_->url().is_valid()) {
navigate_after_initialization_ = false;
}
const ExternalTabSettings settings(
m_hWnd,
gfx::Rect(),
WS_CHILD,
chrome_launch_params_->incognito(),
!use_chrome_network_,
handle_top_level_requests_,
chrome_launch_params_->url(),
chrome_launch_params_->referrer(),
// Infobars disabled in widget mode.
!chrome_launch_params_->widget_mode(),
chrome_launch_params_->route_all_top_level_navigations());
UMA_HISTOGRAM_CUSTOM_COUNTS(
"ChromeFrame.HostNetworking", !use_chrome_network_, 0, 1, 2);
UMA_HISTOGRAM_CUSTOM_COUNTS("ChromeFrame.HandleTopLevelRequests",
handle_top_level_requests_, 0, 1, 2);
IPC::SyncMessage* message =
new AutomationMsg_CreateExternalTab(settings, NULL, NULL, 0, 0);
automation_server_->SendAsAsync(message, new CreateExternalTabContext(this),
this);
}
AutomationLaunchResult ChromeFrameAutomationClient::CreateExternalTabComplete(
HWND chrome_window, HWND tab_window, int tab_handle, int session_id) {
if (!automation_server_) {
// If we receive this notification while shutting down, do nothing.
DLOG(ERROR) << "CreateExternalTabComplete called when automation server "
<< "was null!";
return AUTOMATION_CREATE_TAB_FAILED;
}
AutomationLaunchResult launch_result = AUTOMATION_SUCCESS;
if (tab_handle == 0 || !::IsWindow(chrome_window)) {
launch_result = AUTOMATION_CREATE_TAB_FAILED;
} else {
chrome_window_ = chrome_window;
tab_window_ = tab_window;
tab_ = automation_server_->CreateTabProxy(tab_handle);
tab_->AddObserver(this);
tab_handle_ = tab_handle;
session_id_ = session_id;
}
return launch_result;
}
// Invoked in launch background thread.
void ChromeFrameAutomationClient::LaunchComplete(
ChromeFrameAutomationProxy* proxy,
AutomationLaunchResult result) {
// If we're shutting down we don't keep a pointer to the automation server.
if (init_state_ != UNINITIALIZING) {
DCHECK(init_state_ == INITIALIZING);
automation_server_ = proxy;
} else {
DVLOG(1) << "Not storing automation server pointer due to shutting down";
}
if (result == AUTOMATION_SUCCESS) {
// NOTE: A potential problem here is that Uninitialize() may just have
// been called so we need to be careful and check the automation_server_
// pointer.
if (automation_server_ != NULL) {
// If we have a valid tab_handle here it means that we are attaching to
// an existing ExternalTabContainer instance, in which case we don't
// want to create an external tab instance in Chrome.
if (external_tab_cookie_ == 0) {
// Continue with Initialization - Create external tab
CreateExternalTab();
} else {
// Send a notification to Chrome that we are ready to connect to the
// ExternalTab.
IPC::SyncMessage* message =
new AutomationMsg_ConnectExternalTab(external_tab_cookie_, true,
m_hWnd, NULL, NULL, NULL, 0);
automation_server_->SendAsAsync(message,
new CreateExternalTabContext(this),
this);
DVLOG(1) << __FUNCTION__ << ": sending CreateExternalTabComplete";
}
}
} else {
// Launch failed. Note, we cannot delete proxy here.
PostTask(FROM_HERE, NewRunnableMethod(this,
&ChromeFrameAutomationClient::InitializeComplete, result));
}
}
void ChromeFrameAutomationClient::AutomationServerDied() {
// Make sure we notify our delegate.
PostTask(FROM_HERE, NewRunnableMethod(this,
&ChromeFrameAutomationClient::InitializeComplete,
AUTOMATION_SERVER_CRASHED));
// Then uninitialize.
PostTask(FROM_HERE, NewRunnableMethod(this,
&ChromeFrameAutomationClient::Uninitialize));
}
void ChromeFrameAutomationClient::InitializeComplete(
AutomationLaunchResult result) {
DCHECK_EQ(base::PlatformThread::CurrentId(), ui_thread_id_);
if (result != AUTOMATION_SUCCESS) {
DLOG(WARNING) << "InitializeComplete: failure " << result;
ReleaseAutomationServer();
} else {
init_state_ = INITIALIZED;
// If the host already have a window, ask Chrome to re-parent.
if (parent_window_)
SetParentWindow(parent_window_);
// If host specified destination URL - navigate. Apparently we do not use
// accelerator table.
if (navigate_after_initialization_) {
navigate_after_initialization_ = false;
BeginNavigate();
}
}
if (chrome_frame_delegate_) {
if (result == AUTOMATION_SUCCESS) {
chrome_frame_delegate_->OnAutomationServerReady();
} else {
std::string version;
if (automation_server_)
version = automation_server_->server_version();
chrome_frame_delegate_->OnAutomationServerLaunchFailed(result, version);
}
}
}
bool ChromeFrameAutomationClient::ProcessUrlRequestMessage(TabProxy* tab,
const IPC::Message& msg, bool ui_thread) {
// Either directly call appropriate url_fetcher function
// or postpone call to the UI thread.
uint16 msg_type = msg.type();
switch (msg_type) {
default:
return false;
case AutomationMsg_RequestStart::ID:
if (ui_thread || (url_fetcher_flags_ &
PluginUrlRequestManager::START_REQUEST_THREADSAFE)) {
AutomationMsg_RequestStart::Dispatch(&msg, url_fetcher_, this,
&PluginUrlRequestManager::StartUrlRequest);
return true;
}
break;
case AutomationMsg_RequestRead::ID:
if (ui_thread || (url_fetcher_flags_ &
PluginUrlRequestManager::READ_REQUEST_THREADSAFE)) {
AutomationMsg_RequestRead::Dispatch(&msg, url_fetcher_, this,
&PluginUrlRequestManager::ReadUrlRequest);
return true;
}
break;
case AutomationMsg_RequestEnd::ID:
if (ui_thread || (url_fetcher_flags_ &
PluginUrlRequestManager::STOP_REQUEST_THREADSAFE)) {
AutomationMsg_RequestEnd::Dispatch(&msg, url_fetcher_, this,
&PluginUrlRequestManager::EndUrlRequest);
return true;
}
break;
case AutomationMsg_DownloadRequestInHost::ID:
if (ui_thread || (url_fetcher_flags_ &
PluginUrlRequestManager::DOWNLOAD_REQUEST_THREADSAFE)) {
AutomationMsg_DownloadRequestInHost::Dispatch(&msg, url_fetcher_, this,
&PluginUrlRequestManager::DownloadUrlRequestInHost);
return true;
}
break;
case AutomationMsg_GetCookiesFromHost::ID:
if (ui_thread || (url_fetcher_flags_ &
PluginUrlRequestManager::COOKIE_REQUEST_THREADSAFE)) {
AutomationMsg_GetCookiesFromHost::Dispatch(&msg, url_fetcher_, this,
&PluginUrlRequestManager::GetCookiesFromHost);
return true;
}
break;
case AutomationMsg_SetCookieAsync::ID:
if (ui_thread || (url_fetcher_flags_ &
PluginUrlRequestManager::COOKIE_REQUEST_THREADSAFE)) {
AutomationMsg_SetCookieAsync::Dispatch(&msg, url_fetcher_, this,
&PluginUrlRequestManager::SetCookiesInHost);
return true;
}
break;
}
PostTask(FROM_HERE, NewRunnableMethod(this,
&ChromeFrameAutomationClient::ProcessUrlRequestMessage, tab, msg, true));
return true;
}
// These are invoked in channel's background thread.
// Cannot call any method of the activex here since it is a STA kind of being.
// By default we marshal the IPC message to the main/GUI thread and from there
// we safely invoke chrome_frame_delegate_->OnMessageReceived(msg).
bool ChromeFrameAutomationClient::OnMessageReceived(TabProxy* tab,