display_media_access_handler.cc | Explore in Territory

// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "chrome/browser/media/webrtc/display_media_access_handler.h"

#include <string>
#include <utility>
#include <vector>

#include "base/containers/contains.h"
#include "base/feature_list.h"
#include "base/functional/bind.h"
#include "base/functional/callback.h"
#include "base/strings/utf_string_conversions.h"
#include "build/build_config.h"
#include "chrome/browser/bad_message.h"
#include "chrome/browser/content_settings/host_content_settings_map_factory.h"
#include "chrome/browser/media/webrtc/capture_policy_utils.h"
#include "chrome/browser/media/webrtc/desktop_capture_devices_util.h"
#include "chrome/browser/media/webrtc/desktop_media_picker_factory_impl.h"
#include "chrome/browser/media/webrtc/native_desktop_media_list.h"
#include "chrome/browser/media/webrtc/tab_desktop_media_list.h"
#include "chrome/browser/picture_in_picture/picture_in_picture_window_manager.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/safe_browsing/user_interaction_observer.h"
#include "chrome/browser/ui/url_identity.h"
#include "chrome/browser/ui/views/frame/browser_frame.h"
#include "chrome/browser/ui/views/frame/browser_view.h"
#include "chrome/common/pref_names.h"
#include "components/prefs/pref_service.h"
#include "components/url_formatter/elide_url.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/desktop_media_id.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/url_constants.h"
#include "third_party/blink/public/common/features.h"
#include "third_party/blink/public/mojom/mediastream/media_stream.mojom-shared.h"
#include "third_party/blink/public/mojom/mediastream/media_stream.mojom.h"
#include "third_party/blink/public/mojom/permissions_policy/permissions_policy_feature.mojom.h"

#if BUILDFLAG(IS_CHROMEOS)
#include "chrome/browser/chromeos/policy/dlp/dlp_content_manager.h"
#endif  // BUILDFLAG(IS_CHROMEOS)

#if BUILDFLAG(IS_MAC)
#include "chrome/browser/media/webrtc/system_media_capture_permissions_mac.h"
#endif  // BUILDFLAG(IS_MAC)

// If enabled, a capture request on the opener tab of a Picture in Picture
// window will show up in the PiP window instead if the PiP window is active.
// Otherwise, it will show up in the opener because that's where the capture
// request originated.
BASE_FEATURE(…);

namespace {

constexpr UrlIdentity::TypeSet allowed_types = …;

constexpr UrlIdentity::FormatOptions options = …;

// Helper function to get the title of the calling application.
std::u16string GetApplicationTitle(content::WebContents* web_contents) { … }

}  // namespace

DisplayMediaAccessHandler::DisplayMediaAccessHandler()
    : … { … }

DisplayMediaAccessHandler::DisplayMediaAccessHandler(
    std::unique_ptr<DesktopMediaPickerFactory> picker_factory,
    bool display_notification)
    : … { … }

DisplayMediaAccessHandler::~DisplayMediaAccessHandler() = default;

bool DisplayMediaAccessHandler::SupportsStreamType(
    content::WebContents* web_contents,
    const blink::mojom::MediaStreamType stream_type,
    const extensions::Extension* extension) { … }

bool DisplayMediaAccessHandler::CheckMediaAccessPermission(
    content::RenderFrameHost* render_frame_host,
    const url::Origin& security_origin,
    blink::mojom::MediaStreamType type,
    const extensions::Extension* extension) { … }

void DisplayMediaAccessHandler::HandleRequest(
    content::WebContents* web_contents,
    const content::MediaStreamRequest& request,
    content::MediaResponseCallback callback,
    const extensions::Extension* extension) { … }

void DisplayMediaAccessHandler::UpdateMediaRequestState(
    int render_process_id,
    int render_frame_id,
    int page_request_id,
    blink::mojom::MediaStreamType stream_type,
    content::MediaRequestState state) { … }

void DisplayMediaAccessHandler::ShowMediaSelectionDialog(
    content::WebContents* web_contents,
    const content::MediaStreamRequest& request,
    content::MediaResponseCallback callback) { … }

void DisplayMediaAccessHandler::BypassMediaSelectionDialog(
    content::WebContents* web_contents,
    const content::MediaStreamRequest& request,
    content::MediaResponseCallback callback) { … }

void DisplayMediaAccessHandler::ProcessChangeSourceRequest(
    content::WebContents* web_contents,
    const content::MediaStreamRequest& request,
    content::MediaResponseCallback callback) { … }

void DisplayMediaAccessHandler::ProcessQueuedAccessRequest(
    const RequestsQueue& queue,
    content::WebContents* web_contents) { … }

void DisplayMediaAccessHandler::ProcessQueuedPickerRequest(
    const PendingAccessRequest& pending_request,
    content::WebContents* web_contents,
    AllowedScreenCaptureLevel capture_level,
    const GURL& request_origin) { … }

void DisplayMediaAccessHandler::ProcessQueuedChangeSourceRequest(
    const content::MediaStreamRequest& request,
    content::WebContents* web_contents) { … }

void DisplayMediaAccessHandler::RejectRequest(
    content::WebContents* web_contents,
    blink::mojom::MediaStreamRequestResult result) { … }

void DisplayMediaAccessHandler::AcceptRequest(
    content::WebContents* web_contents,
    const content::DesktopMediaID& media_id) { … }

void DisplayMediaAccessHandler::OnDisplaySurfaceSelected(
    base::WeakPtr<content::WebContents> web_contents,
    content::DesktopMediaID media_id) { … }

#if BUILDFLAG(IS_CHROMEOS)
void DisplayMediaAccessHandler::OnDlpRestrictionChecked(
    base::WeakPtr<content::WebContents> web_contents,
    const content::DesktopMediaID& media_id,
    bool is_dlp_allowed) {
  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);

  if (!web_contents) {
    return;
  }

  if (!is_dlp_allowed) {
    RejectRequest(web_contents.get(),
                  blink::mojom::MediaStreamRequestResult::PERMISSION_DENIED);
  }
  AcceptRequest(web_contents.get(), media_id);
}
#endif  // BUILDFLAG(IS_CHROMEOS)

void DisplayMediaAccessHandler::DeletePendingAccessRequest(
    int render_process_id,
    int render_frame_id,
    int page_request_id) { … }

void DisplayMediaAccessHandler::WebContentsDestroyed(
    content::WebContents* web_contents) { … }
chromium/chrome/browser/media/webrtc/display_media_access_handler.cc
