electron/atom/browser/atom_browser_client.cc

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// Copyright (c) 2013 GitHub, Inc.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#include "atom/browser/atom_browser_client.h"
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#if defined(OS_WIN)
#include <shlobj.h>
#endif
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#include "atom/browser/api/atom_api_app.h"
#include "atom/browser/api/atom_api_protocol.h"
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#include "atom/browser/atom_browser_context.h"
#include "atom/browser/atom_browser_main_parts.h"
#include "atom/browser/atom_quota_permission_context.h"
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#include "atom/browser/atom_resource_dispatcher_host_delegate.h"
#include "atom/browser/atom_speech_recognition_manager_delegate.h"
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#include "atom/browser/native_window.h"
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#include "atom/browser/web_contents_permission_helper.h"
#include "atom/browser/web_contents_preferences.h"
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#include "atom/browser/window_list.h"
#include "atom/common/options_switches.h"
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#include "base/command_line.h"
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#include "base/files/file_util.h"
#include "base/stl_util.h"
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#include "base/strings/string_number_conversions.h"
#include "base/strings/string_util.h"
#include "chrome/browser/printing/printing_message_filter.h"
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#include "chrome/browser/renderer_host/pepper/chrome_browser_pepper_host_factory.h"
#include "chrome/browser/renderer_host/pepper/widevine_cdm_message_filter.h"
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#include "chrome/browser/speech/tts_message_filter.h"
#include "content/common/resource_request_body_impl.h"
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#include "content/public/browser/browser_ppapi_host.h"
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#include "content/public/browser/client_certificate_delegate.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/resource_dispatcher_host.h"
#include "content/public/browser/site_instance.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/url_constants.h"
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#include "content/public/common/web_preferences.h"
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#include "net/ssl/ssl_cert_request_info.h"
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#include "ppapi/host/ppapi_host.h"
#include "ui/base/l10n/l10n_util.h"
#include "v8/include/v8.h"
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namespace atom {
namespace {
// Next navigation should not restart renderer process.
bool g_suppress_renderer_process_restart = false;
// Custom schemes to be registered to handle service worker.
std::string g_custom_service_worker_schemes = "";
void Noop(scoped_refptr<content::SiteInstance>) {
}
} // namespace
// static
void AtomBrowserClient::SuppressRendererProcessRestartForOnce() {
g_suppress_renderer_process_restart = true;
}
void AtomBrowserClient::SetCustomServiceWorkerSchemes(
const std::vector<std::string>& schemes) {
g_custom_service_worker_schemes = base::JoinString(schemes, ",");
}
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AtomBrowserClient::AtomBrowserClient() : delegate_(nullptr) {
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}
AtomBrowserClient::~AtomBrowserClient() {
}
content::WebContents* AtomBrowserClient::GetWebContentsFromProcessID(
int process_id) {
// If the process is a pending process, we should use the old one.
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if (base::ContainsKey(pending_processes_, process_id))
process_id = pending_processes_[process_id];
// Certain render process will be created with no associated render view,
// for example: ServiceWorker.
return WebContentsPreferences::GetWebContentsFromProcessID(process_id);
}
bool AtomBrowserClient::ShouldCreateNewSiteInstance(
content::BrowserContext* browser_context,
content::SiteInstance* current_instance,
const GURL& url) {
if (url.SchemeIs(url::kJavaScriptScheme))
// "javacript:" scheme should always use same SiteInstance
return false;
if (!IsRendererSandboxed(current_instance->GetProcess()->GetID()))
// non-sandboxed renderers should always create a new SiteInstance
return true;
// Create new a SiteInstance if navigating to a different site.
auto src_url = current_instance->GetSiteURL();
return
!content::SiteInstance::IsSameWebSite(browser_context, src_url, url) &&
// `IsSameWebSite` doesn't seem to work for some URIs such as `file:`,
// handle these scenarios by comparing only the site as defined by
// `GetSiteForURL`.
content::SiteInstance::GetSiteForURL(browser_context, url) != src_url;
}
void AtomBrowserClient::AddProcessPreferences(int process_id, AtomBrowserClient::ProcessPreferences prefs) {
base::AutoLock auto_lock(process_preferences_lock_);
process_preferences_[process_id] = prefs;
}
void AtomBrowserClient::RemoveProcessPreferences(int process_id) {
base::AutoLock auto_lock(process_preferences_lock_);
process_preferences_.erase(process_id);
}
bool AtomBrowserClient::IsRendererSandboxed(int process_id) {
base::AutoLock auto_lock(process_preferences_lock_);
auto it = process_preferences_.find(process_id);
return it != process_preferences_.end() && it->second.sandbox;
}
bool AtomBrowserClient::IsRendererUsesNativeWindowOpen(int process_id) {
base::AutoLock auto_lock(process_preferences_lock_);
auto it = process_preferences_.find(process_id);
return it != process_preferences_.end() && it->second.native_window_open;
}
void AtomBrowserClient::RenderProcessWillLaunch(
content::RenderProcessHost* host) {
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int process_id = host->GetID();
host->AddFilter(new printing::PrintingMessageFilter(process_id));
host->AddFilter(new TtsMessageFilter(process_id, host->GetBrowserContext()));
host->AddFilter(
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new WidevineCdmMessageFilter(process_id, host->GetBrowserContext()));
content::WebContents* web_contents = GetWebContentsFromProcessID(process_id);
ProcessPreferences process_prefs;
process_prefs.sandbox = WebContentsPreferences::IsSandboxed(web_contents);
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process_prefs.native_window_open = WebContentsPreferences::UsesNativeWindowOpen(web_contents);
AddProcessPreferences(host->GetID(), process_prefs);
// ensure the ProcessPreferences is removed later
host->AddObserver(this);
}
content::SpeechRecognitionManagerDelegate*
AtomBrowserClient::CreateSpeechRecognitionManagerDelegate() {
return new AtomSpeechRecognitionManagerDelegate;
}
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void AtomBrowserClient::OverrideWebkitPrefs(
content::RenderViewHost* host, content::WebPreferences* prefs) {
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prefs->javascript_enabled = true;
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prefs->web_security_enabled = true;
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prefs->javascript_can_open_windows_automatically = true;
prefs->plugins_enabled = true;
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prefs->dom_paste_enabled = true;
prefs->allow_scripts_to_close_windows = true;
prefs->javascript_can_access_clipboard = true;
prefs->local_storage_enabled = true;
prefs->databases_enabled = true;
prefs->application_cache_enabled = true;
prefs->allow_universal_access_from_file_urls = true;
prefs->allow_file_access_from_file_urls = true;
prefs->experimental_webgl_enabled = true;
prefs->allow_running_insecure_content = false;
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// Custom preferences of guest page.
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auto web_contents = content::WebContents::FromRenderViewHost(host);
WebContentsPreferences::OverrideWebkitPrefs(web_contents, prefs);
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}
std::string AtomBrowserClient::GetApplicationLocale() {
return l10n_util::GetApplicationLocale("");
}
void AtomBrowserClient::OverrideSiteInstanceForNavigation(
content::BrowserContext* browser_context,
content::SiteInstance* current_instance,
const GURL& url,
content::SiteInstance** new_instance) {
if (g_suppress_renderer_process_restart) {
g_suppress_renderer_process_restart = false;
return;
}
if (!ShouldCreateNewSiteInstance(browser_context, current_instance, url))
return;
scoped_refptr<content::SiteInstance> site_instance =
content::SiteInstance::CreateForURL(browser_context, url);
*new_instance = site_instance.get();
// Make sure the |site_instance| is not freed when this function returns.
// FIXME(zcbenz): We should adjust OverrideSiteInstanceForNavigation's
// interface to solve this.
content::BrowserThread::PostTask(
content::BrowserThread::UI, FROM_HERE,
base::Bind(&Noop, base::RetainedRef(site_instance)));
// Remember the original renderer process of the pending renderer process.
auto current_process = current_instance->GetProcess();
auto pending_process = (*new_instance)->GetProcess();
pending_processes_[pending_process->GetID()] = current_process->GetID();
// Clear the entry in map when process ends.
current_process->AddObserver(this);
}
void AtomBrowserClient::AppendExtraCommandLineSwitches(
base::CommandLine* command_line,
int process_id) {
std::string process_type = command_line->GetSwitchValueASCII("type");
if (process_type != "renderer")
return;
// Copy following switches to child process.
static const char* const kCommonSwitchNames[] = {
switches::kStandardSchemes,
switches::kEnableSandbox,
switches::kSecureSchemes
};
command_line->CopySwitchesFrom(
*base::CommandLine::ForCurrentProcess(),
kCommonSwitchNames, arraysize(kCommonSwitchNames));
// The registered service worker schemes.
if (!g_custom_service_worker_schemes.empty())
command_line->AppendSwitchASCII(switches::kRegisterServiceWorkerSchemes,
g_custom_service_worker_schemes);
#if defined(OS_WIN)
// Append --app-user-model-id.
PWSTR current_app_id;
if (SUCCEEDED(GetCurrentProcessExplicitAppUserModelID(&current_app_id))) {
command_line->AppendSwitchNative(switches::kAppUserModelId, current_app_id);
CoTaskMemFree(current_app_id);
}
#endif
content::WebContents* web_contents = GetWebContentsFromProcessID(process_id);
if (!web_contents)
return;
WebContentsPreferences::AppendExtraCommandLineSwitches(
web_contents, command_line);
}
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void AtomBrowserClient::DidCreatePpapiPlugin(
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content::BrowserPpapiHost* host) {
host->GetPpapiHost()->AddHostFactoryFilter(
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base::WrapUnique(new chrome::ChromeBrowserPepperHostFactory(host)));
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}
content::QuotaPermissionContext*
AtomBrowserClient::CreateQuotaPermissionContext() {
return new AtomQuotaPermissionContext;
}
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void AtomBrowserClient::AllowCertificateError(
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content::WebContents* web_contents,
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int cert_error,
const net::SSLInfo& ssl_info,
const GURL& request_url,
content::ResourceType resource_type,
bool overridable,
bool strict_enforcement,
bool expired_previous_decision,
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const base::Callback<void(content::CertificateRequestResultType)>&
callback) {
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if (delegate_) {
delegate_->AllowCertificateError(
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web_contents, cert_error, ssl_info, request_url,
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resource_type, overridable, strict_enforcement,
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expired_previous_decision, callback);
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}
}
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void AtomBrowserClient::SelectClientCertificate(
content::WebContents* web_contents,
net::SSLCertRequestInfo* cert_request_info,
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std::unique_ptr<content::ClientCertificateDelegate> delegate) {
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if (!cert_request_info->client_certs.empty() && delegate_) {
delegate_->SelectClientCertificate(
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web_contents, cert_request_info, std::move(delegate));
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}
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}
void AtomBrowserClient::ResourceDispatcherHostCreated() {
resource_dispatcher_host_delegate_.reset(
new AtomResourceDispatcherHostDelegate);
content::ResourceDispatcherHost::Get()->SetDelegate(
resource_dispatcher_host_delegate_.get());
}
bool AtomBrowserClient::CanCreateWindow(
const GURL& opener_url,
const GURL& opener_top_level_frame_url,
const GURL& source_origin,
WindowContainerType container_type,
const GURL& target_url,
const content::Referrer& referrer,
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const std::string& frame_name,
WindowOpenDisposition disposition,
const blink::WebWindowFeatures& features,
const std::vector<std::string>& additional_features,
const scoped_refptr<content::ResourceRequestBodyImpl>& body,
bool user_gesture,
bool opener_suppressed,
content::ResourceContext* context,
int render_process_id,
int opener_render_view_id,
int opener_render_frame_id,
bool* no_javascript_access) {
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DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
if (IsRendererSandboxed(render_process_id)) {
*no_javascript_access = false;
return true;
}
if (delegate_) {
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content::BrowserThread::PostTask(content::BrowserThread::UI, FROM_HERE,
base::Bind(&api::App::OnCreateWindow,
base::Unretained(static_cast<api::App*>(delegate_)),
target_url,
frame_name,
disposition,
additional_features,
body,
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render_process_id,
opener_render_frame_id));
}
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return false;
}
void AtomBrowserClient::GetAdditionalAllowedSchemesForFileSystem(
std::vector<std::string>* additional_schemes) {
auto schemes_list = api::GetStandardSchemes();
if (!schemes_list.empty())
additional_schemes->insert(additional_schemes->end(),
schemes_list.begin(),
schemes_list.end());
additional_schemes->push_back(content::kChromeDevToolsScheme);
}
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brightray::BrowserMainParts* AtomBrowserClient::OverrideCreateBrowserMainParts(
const content::MainFunctionParams&) {
v8::V8::Initialize(); // Init V8 before creating main parts.
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return new AtomBrowserMainParts;
}
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void AtomBrowserClient::WebNotificationAllowed(
int render_process_id,
const base::Callback<void(bool, bool)>& callback) {
content::WebContents* web_contents =
WebContentsPreferences::GetWebContentsFromProcessID(render_process_id);
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if (!web_contents) {
callback.Run(false, false);
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return;
}
auto permission_helper =
WebContentsPermissionHelper::FromWebContents(web_contents);
if (!permission_helper) {
callback.Run(false, false);
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return;
}
permission_helper->RequestWebNotificationPermission(
base::Bind(callback, web_contents->IsAudioMuted()));
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}
void AtomBrowserClient::RenderProcessHostDestroyed(
content::RenderProcessHost* host) {
int process_id = host->GetID();
for (const auto& entry : pending_processes_) {
if (entry.first == process_id || entry.second == process_id) {
pending_processes_.erase(entry.first);
break;
}
}
RemoveProcessPreferences(process_id);
}
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} // namespace atom