android_webview/browser/aw_content_browser

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This source file includes following definitions.
process_id_
OverrideThreadForMessage
OnMessageReceived
OnShouldOverrideUrlLoading
OnSubFrameCreated
LoadAccessTokens
SaveAccessToken
GetAcceptLangsImpl
GetAwBrowserContext
AddCertificate
CreateBrowserMainParts
GetWebContentsViewDelegate
RenderProcessWillLaunch
CreateRequestContext
CreateRequestContextForStoragePartition
GetCanonicalEncodingNameByAliasName
AppendExtraCommandLineSwitches
GetApplicationLocale
GetAcceptLangs
GetDefaultFavicon
AllowAppCache
AllowGetCookie
AllowSetCookie
AllowWorkerDatabase
AllowWorkerFileSystem
AllowWorkerIndexedDB
CreateQuotaPermissionContext
AllowCertificateError
SelectClientCertificate
CheckDesktopNotificationPermission
ShowDesktopNotification
CancelDesktopNotification
CanCreateWindow
GetWorkerProcessTitle
ResourceDispatcherHostCreated
GetNetLog
CreateAccessTokenStore
IsFastShutdownPossible
UpdateInspectorSetting
ClearCache
ClearCookies
GetDefaultDownloadDirectory
GetDefaultDownloadName
DidCreatePpapiPlugin
AllowPepperSocketAPI
OverrideWebkitPrefs
// 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 "android_webview/browser/aw_content_browser_client.h"

#include "android_webview/browser/aw_browser_context.h"
#include "android_webview/browser/aw_browser_main_parts.h"
#include "android_webview/browser/aw_contents_client_bridge_base.h"
#include "android_webview/browser/aw_contents_io_thread_client.h"
#include "android_webview/browser/aw_cookie_access_policy.h"
#include "android_webview/browser/aw_quota_permission_context.h"
#include "android_webview/browser/aw_web_preferences_populater.h"
#include "android_webview/browser/jni_dependency_factory.h"
#include "android_webview/browser/net_disk_cache_remover.h"
#include "android_webview/browser/renderer_host/aw_resource_dispatcher_host_delegate.h"
#include "android_webview/common/render_view_messages.h"
#include "android_webview/common/url_constants.h"
#include "base/base_paths_android.h"
#include "base/path_service.h"
#include "content/public/browser/access_token_store.h"
#include "content/public/browser/browser_message_filter.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/child_process_security_policy.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/url_constants.h"
#include "grit/ui_resources.h"
#include "net/android/network_library.h"
#include "net/ssl/ssl_cert_request_info.h"
#include "net/ssl/ssl_info.h"
#include "ui/base/l10n/l10n_util_android.h"
#include "ui/base/resource/resource_bundle.h"
#include "webkit/common/webpreferences.h"

using content::BrowserThread;

namespace android_webview {
namespace {

// TODO(sgurun) move this to its own file.
// This class filters out incoming aw_contents related IPC messages for the
// renderer process on the IPC thread.
class AwContentsMessageFilter : public content::BrowserMessageFilter {
public:
  explicit AwContentsMessageFilter(int process_id);

  // BrowserMessageFilter methods.
  virtual void OverrideThreadForMessage(
      const IPC::Message& message,
      BrowserThread::ID* thread) OVERRIDE;
  virtual bool OnMessageReceived(
      const IPC::Message& message,
      bool* message_was_ok) OVERRIDE;

  void OnShouldOverrideUrlLoading(int routing_id,
                                  const base::string16& url,
                                  bool* ignore_navigation);
  void OnSubFrameCreated(int parent_render_frame_id, int child_render_frame_id);

private:
  virtual ~AwContentsMessageFilter();

  int process_id_;

  DISALLOW_COPY_AND_ASSIGN(AwContentsMessageFilter);
};

AwContentsMessageFilter::AwContentsMessageFilter(int process_id)
    : BrowserMessageFilter(AndroidWebViewMsgStart),
      process_id_(process_id) {
}

AwContentsMessageFilter::~AwContentsMessageFilter() {
}

void AwContentsMessageFilter::OverrideThreadForMessage(
    const IPC::Message& message, BrowserThread::ID* thread) {
  if (message.type() == AwViewHostMsg_ShouldOverrideUrlLoading::ID) {
    *thread = BrowserThread::UI;
  }
}

bool AwContentsMessageFilter::OnMessageReceived(const IPC::Message& message,
                                                bool* message_was_ok) {
  bool handled = true;
  IPC_BEGIN_MESSAGE_MAP_EX(AwContentsMessageFilter, message, *message_was_ok)
      IPC_MESSAGE_HANDLER(AwViewHostMsg_ShouldOverrideUrlLoading,
                          OnShouldOverrideUrlLoading)
      IPC_MESSAGE_HANDLER(AwViewHostMsg_SubFrameCreated, OnSubFrameCreated)
      IPC_MESSAGE_UNHANDLED(handled = false)
  IPC_END_MESSAGE_MAP()
  return handled;
}

void AwContentsMessageFilter::OnShouldOverrideUrlLoading(
    int render_frame_id,
    const base::string16& url,
    bool* ignore_navigation) {
  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  *ignore_navigation = false;
  AwContentsClientBridgeBase* client =
      AwContentsClientBridgeBase::FromID(process_id_, render_frame_id);
  if (client) {
    *ignore_navigation = client->ShouldOverrideUrlLoading(url);
  } else {
    LOG(WARNING) << "Failed to find the associated render view host for url: "
                 << url;
  }
}

void AwContentsMessageFilter::OnSubFrameCreated(int parent_render_frame_id,
                                                int child_render_frame_id) {
  AwContentsIoThreadClient::SubFrameCreated(
      process_id_, parent_render_frame_id, child_render_frame_id);
}

class AwAccessTokenStore : public content::AccessTokenStore {
 public:
  AwAccessTokenStore() { }

  // content::AccessTokenStore implementation
  virtual void LoadAccessTokens(
      const LoadAccessTokensCallbackType& request) OVERRIDE {
    AccessTokenStore::AccessTokenSet access_token_set;
    // AccessTokenSet and net::URLRequestContextGetter not used on Android,
    // but Run needs to be called to finish the geolocation setup.
    request.Run(access_token_set, NULL);
  }
  virtual void SaveAccessToken(const GURL& server_url,
                               const base::string16& access_token) OVERRIDE { }

 private:
  virtual ~AwAccessTokenStore() { }

  DISALLOW_COPY_AND_ASSIGN(AwAccessTokenStore);
};

}

std::string AwContentBrowserClient::GetAcceptLangsImpl() {
  // Start with the currnet locale.
  std::string langs = l10n_util::GetDefaultLocale();

  // If we're not en-US, add in en-US which will be
  // used with a lower q-value.
  if (StringToLowerASCII(langs) != "en-us") {
    langs += ",en-US";
  }
  return langs;
}

AwBrowserContext* AwContentBrowserClient::GetAwBrowserContext() {
  return AwBrowserContext::GetDefault();
}

AwContentBrowserClient::AwContentBrowserClient(
    JniDependencyFactory* native_factory)
    : native_factory_(native_factory) {
  base::FilePath user_data_dir;
  if (!PathService::Get(base::DIR_ANDROID_APP_DATA, &user_data_dir)) {
    NOTREACHED() << "Failed to get app data directory for Android WebView";
  }
  browser_context_.reset(
      new AwBrowserContext(user_data_dir, native_factory_));
}

AwContentBrowserClient::~AwContentBrowserClient() {
}

void AwContentBrowserClient::AddCertificate(net::URLRequest* request,
                                            net::CertificateMimeType cert_type,
                                            const void* cert_data,
                                            size_t cert_size,
                                            int render_process_id,
                                            int render_view_id) {
  if (cert_size > 0)
    net::android::StoreCertificate(cert_type, cert_data, cert_size);
}

content::BrowserMainParts* AwContentBrowserClient::CreateBrowserMainParts(
    const content::MainFunctionParams& parameters) {
  return new AwBrowserMainParts(browser_context_.get());
}

content::WebContentsViewDelegate*
AwContentBrowserClient::GetWebContentsViewDelegate(
    content::WebContents* web_contents) {
  return native_factory_->CreateViewDelegate(web_contents);
}

void AwContentBrowserClient::RenderProcessWillLaunch(
    content::RenderProcessHost* host) {
  // If WebView becomes multi-process capable, this may be insecure.
  // More benefit can be derived from the ChildProcessSecurotyPolicy by
  // deferring the GrantScheme calls until we know that a given child process
  // really does need that priviledge. Check here to ensure we rethink this
  // when the time comes. See crbug.com/156062.
  CHECK(content::RenderProcessHost::run_renderer_in_process());

  // Grant content: and file: scheme to the whole process, since we impose
  // per-view access checks.
  content::ChildProcessSecurityPolicy::GetInstance()->GrantScheme(
      host->GetID(), android_webview::kContentScheme);
  content::ChildProcessSecurityPolicy::GetInstance()->GrantScheme(
      host->GetID(), content::kFileScheme);

  host->AddFilter(new AwContentsMessageFilter(host->GetID()));
}

net::URLRequestContextGetter* AwContentBrowserClient::CreateRequestContext(
    content::BrowserContext* browser_context,
    content::ProtocolHandlerMap* protocol_handlers,
    content::ProtocolHandlerScopedVector protocol_interceptors) {
  DCHECK(browser_context_.get() == browser_context);
  // TODO(mkosiba,kinuko): protocol_interceptors should be hooked up in the
  // downstream. (crbug.com/350286)
  return browser_context_->CreateRequestContext(protocol_handlers);
}

net::URLRequestContextGetter*
AwContentBrowserClient::CreateRequestContextForStoragePartition(
    content::BrowserContext* browser_context,
    const base::FilePath& partition_path,
    bool in_memory,
    content::ProtocolHandlerMap* protocol_handlers,
    content::ProtocolHandlerScopedVector protocol_interceptors) {
  DCHECK(browser_context_.get() == browser_context);
  return browser_context_->CreateRequestContextForStoragePartition(
      partition_path, in_memory, protocol_handlers);
}

std::string AwContentBrowserClient::GetCanonicalEncodingNameByAliasName(
    const std::string& alias_name) {
  return alias_name;
}

void AwContentBrowserClient::AppendExtraCommandLineSwitches(
    base::CommandLine* command_line,
    int child_process_id) {
  NOTREACHED() << "Android WebView does not support multi-process yet";
}

std::string AwContentBrowserClient::GetApplicationLocale() {
  return l10n_util::GetDefaultLocale();
}

std::string AwContentBrowserClient::GetAcceptLangs(
    content::BrowserContext* context) {
  return GetAcceptLangsImpl();
}

gfx::ImageSkia* AwContentBrowserClient::GetDefaultFavicon() {
  ResourceBundle& rb = ResourceBundle::GetSharedInstance();
  // TODO(boliu): Bundle our own default favicon?
  return rb.GetImageSkiaNamed(IDR_DEFAULT_FAVICON);
}

bool AwContentBrowserClient::AllowAppCache(const GURL& manifest_url,
                           const GURL& first_party,
                           content::ResourceContext* context) {
  // WebView doesn't have a per-site policy for locally stored data,
  // instead AppCache can be disabled for individual WebViews.
  return true;
}


bool AwContentBrowserClient::AllowGetCookie(const GURL& url,
                                            const GURL& first_party,
                                            const net::CookieList& cookie_list,
                                            content::ResourceContext* context,
                                            int render_process_id,
                                            int render_frame_id) {
  return AwCookieAccessPolicy::GetInstance()->AllowGetCookie(url,
                                                             first_party,
                                                             cookie_list,
                                                             context,
                                                             render_process_id,
                                                             render_frame_id);
}

bool AwContentBrowserClient::AllowSetCookie(const GURL& url,
                                            const GURL& first_party,
                                            const std::string& cookie_line,
                                            content::ResourceContext* context,
                                            int render_process_id,
                                            int render_frame_id,
                                            net::CookieOptions* options) {
  return AwCookieAccessPolicy::GetInstance()->AllowSetCookie(url,
                                                             first_party,
                                                             cookie_line,
                                                             context,
                                                             render_process_id,
                                                             render_frame_id,
                                                             options);
}

bool AwContentBrowserClient::AllowWorkerDatabase(
    const GURL& url,
    const base::string16& name,
    const base::string16& display_name,
    unsigned long estimated_size,
    content::ResourceContext* context,
    const std::vector<std::pair<int, int> >& render_frames) {
  // Android WebView does not yet support web workers.
  return false;
}

bool AwContentBrowserClient::AllowWorkerFileSystem(
    const GURL& url,
    content::ResourceContext* context,
    const std::vector<std::pair<int, int> >& render_frames) {
  // Android WebView does not yet support web workers.
  return false;
}

bool AwContentBrowserClient::AllowWorkerIndexedDB(
    const GURL& url,
    const base::string16& name,
    content::ResourceContext* context,
    const std::vector<std::pair<int, int> >& render_frames) {
  // Android WebView does not yet support web workers.
  return false;
}

content::QuotaPermissionContext*
AwContentBrowserClient::CreateQuotaPermissionContext() {
  return new AwQuotaPermissionContext;
}

void AwContentBrowserClient::AllowCertificateError(
    int render_process_id,
    int render_frame_id,
    int cert_error,
    const net::SSLInfo& ssl_info,
    const GURL& request_url,
    ResourceType::Type resource_type,
    bool overridable,
    bool strict_enforcement,
    const base::Callback<void(bool)>& callback,
    content::CertificateRequestResultType* result) {
  AwContentsClientBridgeBase* client =
      AwContentsClientBridgeBase::FromID(render_process_id, render_frame_id);
  bool cancel_request = true;
  if (client)
    client->AllowCertificateError(cert_error,
                                  ssl_info.cert.get(),
                                  request_url,
                                  callback,
                                  &cancel_request);
  if (cancel_request)
    *result = content::CERTIFICATE_REQUEST_RESULT_TYPE_DENY;
}

void AwContentBrowserClient::SelectClientCertificate(
      int render_process_id,
      int render_frame_id,
      const net::HttpNetworkSession* network_session,
      net::SSLCertRequestInfo* cert_request_info,
      const base::Callback<void(net::X509Certificate*)>& callback) {
  LOG(WARNING) << "Client certificate request from "
        << cert_request_info->host_and_port.ToString()
        << " rejected. (Client certificates not supported in WebView)";
  callback.Run(NULL);
}

blink::WebNotificationPresenter::Permission
    AwContentBrowserClient::CheckDesktopNotificationPermission(
        const GURL& source_url,
        content::ResourceContext* context,
        int render_process_id) {
  // Android WebView does not support notifications, so return Denied here.
  return blink::WebNotificationPresenter::PermissionDenied;
}

void AwContentBrowserClient::ShowDesktopNotification(
    const content::ShowDesktopNotificationHostMsgParams& params,
    int render_process_id,
    int render_view_id,
    bool worker) {
  NOTREACHED() << "Android WebView does not support desktop notifications.";
}

void AwContentBrowserClient::CancelDesktopNotification(
    int render_process_id,
    int render_view_id,
    int notification_id) {
  NOTREACHED() << "Android WebView does not support desktop notifications.";
}

bool AwContentBrowserClient::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,
    WindowOpenDisposition disposition,
    const blink::WebWindowFeatures& features,
    bool user_gesture,
    bool opener_suppressed,
    content::ResourceContext* context,
    int render_process_id,
    bool is_guest,
    int opener_id,
    bool* no_javascript_access) {
  // We unconditionally allow popup windows at this stage and will give
  // the embedder the opporunity to handle displaying of the popup in
  // WebContentsDelegate::AddContents (via the
  // AwContentsClient.onCreateWindow callback).
  // Note that if the embedder has blocked support for creating popup
  // windows through AwSettings, then we won't get to this point as
  // the popup creation will have been blocked at the WebKit level.
  if (no_javascript_access) {
    *no_javascript_access = false;
  }
  return true;
}

std::string AwContentBrowserClient::GetWorkerProcessTitle(const GURL& url,
                                          content::ResourceContext* context) {
  NOTREACHED() << "Android WebView does not yet support web workers.";
  return std::string();
}


void AwContentBrowserClient::ResourceDispatcherHostCreated() {
  AwResourceDispatcherHostDelegate::ResourceDispatcherHostCreated();
}

net::NetLog* AwContentBrowserClient::GetNetLog() {
  // TODO(boliu): Implement AwNetLog.
  return NULL;
}

content::AccessTokenStore* AwContentBrowserClient::CreateAccessTokenStore() {
  return new AwAccessTokenStore();
}

bool AwContentBrowserClient::IsFastShutdownPossible() {
  NOTREACHED() << "Android WebView is single process, so IsFastShutdownPossible"
               << " should never be called";
  return false;
}

void AwContentBrowserClient::UpdateInspectorSetting(
    content::RenderViewHost* rvh,
    const std::string& key,
    const std::string& value) {
  // TODO(boliu): Implement persisting inspector settings.
  NOTIMPLEMENTED();
}

void AwContentBrowserClient::ClearCache(content::RenderViewHost* rvh) {
  RemoveHttpDiskCache(rvh->GetProcess()->GetBrowserContext(),
                      rvh->GetProcess()->GetID());
}

void AwContentBrowserClient::ClearCookies(content::RenderViewHost* rvh) {
  // TODO(boliu): Implement.
  NOTIMPLEMENTED();
}

base::FilePath AwContentBrowserClient::GetDefaultDownloadDirectory() {
  // Android WebView does not currently use the Chromium downloads system.
  // Download requests are cancelled immedately when recognized; see
  // AwResourceDispatcherHost::CreateResourceHandlerForDownload. However the
  // download system still tries to start up and calls this before recognizing
  // the request has been cancelled.
  return base::FilePath();
}

std::string AwContentBrowserClient::GetDefaultDownloadName() {
  NOTREACHED() << "Android WebView does not use chromium downloads";
  return std::string();
}

void AwContentBrowserClient::DidCreatePpapiPlugin(
    content::BrowserPpapiHost* browser_host) {
  NOTREACHED() << "Android WebView does not support plugins";
}

bool AwContentBrowserClient::AllowPepperSocketAPI(
    content::BrowserContext* browser_context,
    const GURL& url,
    bool private_api,
    const content::SocketPermissionRequest* params) {
  NOTREACHED() << "Android WebView does not support plugins";
  return false;
}

void AwContentBrowserClient::OverrideWebkitPrefs(content::RenderViewHost* rvh,
                                                 const GURL& url,
                                                 WebPreferences* web_prefs) {
  if (!preferences_populater_.get()) {
    preferences_populater_ = make_scoped_ptr(native_factory_->
        CreateWebPreferencesPopulater());
  }
  preferences_populater_->PopulateFor(
      content::WebContents::FromRenderViewHost(rvh), web_prefs);
}

}  // namespace android_webview
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root/android_webview/browser/aw_content_browser_client.cc

DEFINITIONS
