electron/shell/browser/web_contents_permission_helper.cc
George Xu 635d421123
fix: systemMediaPermissionDenied should not check camera perms when the request is asking for screen share (#43517)
* fix: systemMediaPermissionDenied: should check for screen capture perms instead of camera

* Revert "fix: systemMediaPermissionDenied: should check for screen capture perms instead of camera"

This reverts commit e9cc67216558263402867056ed332f8781da3153.

* should only do these checks for audio or video, but not screenshare

* no service

* oops

---------

Co-authored-by: John Kleinschmidt <jkleinsc@electronjs.org>
2024-09-04 09:56:26 +01:00

333 lines
13 KiB
C++

// Copyright (c) 2016 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "shell/browser/web_contents_permission_helper.h"
#include <string_view>
#include <utility>
#include "components/content_settings/core/common/content_settings.h"
#include "components/webrtc/media_stream_devices_controller.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/web_contents_user_data.h"
#include "shell/browser/electron_browser_context.h"
#include "shell/browser/electron_permission_manager.h"
#include "shell/browser/media/media_capture_devices_dispatcher.h"
#if BUILDFLAG(IS_MAC)
#include "chrome/browser/media/webrtc/system_media_capture_permissions_mac.h"
#endif
using blink::mojom::MediaStreamRequestResult;
using blink::mojom::MediaStreamType;
namespace {
constexpr std::string_view MediaStreamTypeToString(
blink::mojom::MediaStreamType type) {
switch (type) {
case MediaStreamType::DEVICE_AUDIO_CAPTURE:
return "audio";
case MediaStreamType::DEVICE_VIDEO_CAPTURE:
return "video";
default:
return "unknown";
}
}
} // namespace
namespace electron {
namespace {
[[nodiscard]] content::DesktopMediaID GetScreenId(
const std::vector<std::string>& requested_video_device_ids) {
if (!requested_video_device_ids.empty() &&
!requested_video_device_ids.front().empty())
return content::DesktopMediaID::Parse(requested_video_device_ids.front());
// If the device id wasn't specified then this is a screen capture request
// (i.e. chooseDesktopMedia() API wasn't used to generate device id).
return content::DesktopMediaID(content::DesktopMediaID::TYPE_SCREEN,
-1 /* kFullDesktopScreenId */);
}
#if BUILDFLAG(IS_MAC)
bool SystemMediaPermissionDenied(const content::MediaStreamRequest& request) {
if (request.audio_type == MediaStreamType::DEVICE_AUDIO_CAPTURE) {
const auto system_audio_permission =
system_media_permissions::CheckSystemAudioCapturePermission();
return system_audio_permission ==
system_media_permissions::SystemPermission::kRestricted ||
system_audio_permission ==
system_media_permissions::SystemPermission::kDenied;
}
if (request.video_type == MediaStreamType::DEVICE_VIDEO_CAPTURE) {
const auto system_video_permission =
system_media_permissions::CheckSystemVideoCapturePermission();
return system_video_permission ==
system_media_permissions::SystemPermission::kRestricted ||
system_video_permission ==
system_media_permissions::SystemPermission::kDenied;
}
return false;
}
#endif
// Handles requests for legacy-style `navigator.getUserMedia(...)` calls.
// This includes desktop capture through the chromeMediaSource /
// chromeMediaSourceId constraints.
void HandleUserMediaRequest(const content::MediaStreamRequest& request,
content::MediaResponseCallback callback) {
auto stream_devices_set = blink::mojom::StreamDevicesSet::New();
auto devices = blink::mojom::StreamDevices::New();
stream_devices_set->stream_devices.emplace_back(std::move(devices));
auto& devices_ref = *stream_devices_set->stream_devices[0];
if (request.audio_type == MediaStreamType::GUM_TAB_AUDIO_CAPTURE ||
request.audio_type == MediaStreamType::GUM_DESKTOP_AUDIO_CAPTURE) {
devices_ref.audio_device = blink::MediaStreamDevice(
request.audio_type,
request.audio_type == MediaStreamType::GUM_DESKTOP_AUDIO_CAPTURE
? "loopback"
: "",
request.audio_type == MediaStreamType::GUM_DESKTOP_AUDIO_CAPTURE
? "System Audio"
: "");
}
if (request.video_type == MediaStreamType::GUM_TAB_VIDEO_CAPTURE ||
request.video_type == MediaStreamType::GUM_DESKTOP_VIDEO_CAPTURE) {
devices_ref.video_device = blink::MediaStreamDevice(
request.video_type,
request.video_type == MediaStreamType::GUM_DESKTOP_VIDEO_CAPTURE
? GetScreenId(request.requested_video_device_ids).ToString()
: "",
request.video_type == MediaStreamType::GUM_DESKTOP_VIDEO_CAPTURE
? "Screen"
: "");
}
bool empty = !devices_ref.audio_device.has_value() &&
!devices_ref.video_device.has_value();
std::move(callback).Run(*stream_devices_set,
empty ? MediaStreamRequestResult::NO_HARDWARE
: MediaStreamRequestResult::OK,
nullptr);
}
void OnMediaStreamRequestResponse(
content::MediaResponseCallback callback,
const blink::mojom::StreamDevicesSet& stream_devices_set,
MediaStreamRequestResult result,
bool blocked_by_permissions_policy,
ContentSetting audio_setting,
ContentSetting video_setting) {
std::move(callback).Run(stream_devices_set, result, nullptr);
}
void MediaAccessAllowed(const content::MediaStreamRequest& request,
content::MediaResponseCallback callback,
bool allowed) {
if (allowed) {
#if BUILDFLAG(IS_MAC)
// If the request was approved, ask for system permissions if needed.
// See
// chrome/browser/media/webrtc/permission_bubble_media_access_handler.cc.
if (SystemMediaPermissionDenied(request)) {
std::move(callback).Run(blink::mojom::StreamDevicesSet(),
MediaStreamRequestResult::PERMISSION_DENIED,
nullptr);
return;
}
#endif
if (request.video_type == MediaStreamType::GUM_DESKTOP_VIDEO_CAPTURE ||
request.audio_type == MediaStreamType::GUM_DESKTOP_AUDIO_CAPTURE ||
request.video_type == MediaStreamType::GUM_TAB_VIDEO_CAPTURE ||
request.audio_type == MediaStreamType::GUM_TAB_AUDIO_CAPTURE) {
HandleUserMediaRequest(request, std::move(callback));
} else if (request.video_type == MediaStreamType::DEVICE_VIDEO_CAPTURE ||
request.audio_type == MediaStreamType::DEVICE_AUDIO_CAPTURE) {
webrtc::MediaStreamDevicesController::RequestPermissions(
request, MediaCaptureDevicesDispatcher::GetInstance(),
base::BindOnce(&OnMediaStreamRequestResponse, std::move(callback)),
allowed);
} else if (request.video_type == MediaStreamType::DISPLAY_VIDEO_CAPTURE ||
request.video_type ==
MediaStreamType::DISPLAY_VIDEO_CAPTURE_THIS_TAB ||
request.video_type ==
MediaStreamType::DISPLAY_VIDEO_CAPTURE_SET ||
request.audio_type == MediaStreamType::DISPLAY_AUDIO_CAPTURE) {
content::RenderFrameHost* rfh = content::RenderFrameHost::FromID(
request.render_process_id, request.render_frame_id);
if (!rfh)
return;
content::BrowserContext* browser_context = rfh->GetBrowserContext();
ElectronBrowserContext* electron_browser_context =
static_cast<ElectronBrowserContext*>(browser_context);
auto split_callback = base::SplitOnceCallback(std::move(callback));
if (electron_browser_context->ChooseDisplayMediaDevice(
request, std::move(split_callback.second)))
return;
std::move(split_callback.first)
.Run(blink::mojom::StreamDevicesSet(),
MediaStreamRequestResult::NOT_SUPPORTED, nullptr);
} else {
std::move(callback).Run(blink::mojom::StreamDevicesSet(),
MediaStreamRequestResult::NOT_SUPPORTED, nullptr);
}
} else {
std::move(callback).Run(blink::mojom::StreamDevicesSet(),
MediaStreamRequestResult::PERMISSION_DENIED,
nullptr);
}
}
void OnPermissionResponse(base::OnceCallback<void(bool)> callback,
blink::mojom::PermissionStatus status) {
if (status == blink::mojom::PermissionStatus::GRANTED)
std::move(callback).Run(true);
else
std::move(callback).Run(false);
}
} // namespace
WebContentsPermissionHelper::WebContentsPermissionHelper(
content::WebContents* web_contents)
: content::WebContentsUserData<WebContentsPermissionHelper>(*web_contents),
web_contents_(web_contents) {}
WebContentsPermissionHelper::~WebContentsPermissionHelper() = default;
void WebContentsPermissionHelper::RequestPermission(
content::RenderFrameHost* requesting_frame,
blink::PermissionType permission,
base::OnceCallback<void(bool)> callback,
bool user_gesture,
base::Value::Dict details) {
auto* permission_manager = static_cast<ElectronPermissionManager*>(
web_contents_->GetBrowserContext()->GetPermissionControllerDelegate());
auto origin = web_contents_->GetLastCommittedURL();
permission_manager->RequestPermissionWithDetails(
permission, requesting_frame, origin, false, std::move(details),
base::BindOnce(&OnPermissionResponse, std::move(callback)));
}
bool WebContentsPermissionHelper::CheckPermission(
blink::PermissionType permission,
base::Value::Dict details) const {
auto* rfh = web_contents_->GetPrimaryMainFrame();
auto* permission_manager = static_cast<ElectronPermissionManager*>(
web_contents_->GetBrowserContext()->GetPermissionControllerDelegate());
auto origin = web_contents_->GetLastCommittedURL();
return permission_manager->CheckPermissionWithDetails(permission, rfh, origin,
std::move(details));
}
void WebContentsPermissionHelper::RequestFullscreenPermission(
content::RenderFrameHost* requesting_frame,
base::OnceCallback<void(bool)> callback) {
RequestPermission(
requesting_frame,
static_cast<blink::PermissionType>(PermissionType::FULLSCREEN),
std::move(callback));
}
void WebContentsPermissionHelper::RequestMediaAccessPermission(
const content::MediaStreamRequest& request,
content::MediaResponseCallback response_callback) {
auto callback = base::BindOnce(&MediaAccessAllowed, request,
std::move(response_callback));
base::Value::Dict details;
base::Value::List media_types;
if (request.audio_type ==
blink::mojom::MediaStreamType::DEVICE_AUDIO_CAPTURE) {
media_types.Append("audio");
}
if (request.video_type ==
blink::mojom::MediaStreamType::DEVICE_VIDEO_CAPTURE) {
media_types.Append("video");
}
details.Set("mediaTypes", std::move(media_types));
details.Set("securityOrigin", request.security_origin.spec());
// The permission type doesn't matter here, AUDIO_CAPTURE/VIDEO_CAPTURE
// are presented as same type in content_converter.h.
RequestPermission(content::RenderFrameHost::FromID(request.render_process_id,
request.render_frame_id),
blink::PermissionType::AUDIO_CAPTURE, std::move(callback),
false, std::move(details));
}
void WebContentsPermissionHelper::RequestWebNotificationPermission(
content::RenderFrameHost* requesting_frame,
base::OnceCallback<void(bool)> callback) {
RequestPermission(requesting_frame, blink::PermissionType::NOTIFICATIONS,
std::move(callback));
}
void WebContentsPermissionHelper::RequestPointerLockPermission(
bool user_gesture,
bool last_unlocked_by_target,
base::OnceCallback<void(content::WebContents*, bool, bool, bool)>
callback) {
RequestPermission(web_contents_->GetPrimaryMainFrame(),
blink::PermissionType::POINTER_LOCK,
base::BindOnce(std::move(callback), web_contents_,
user_gesture, last_unlocked_by_target),
user_gesture);
}
void WebContentsPermissionHelper::RequestKeyboardLockPermission(
bool esc_key_locked,
base::OnceCallback<void(content::WebContents*, bool, bool)> callback) {
RequestPermission(
web_contents_->GetPrimaryMainFrame(),
blink::PermissionType::KEYBOARD_LOCK,
base::BindOnce(std::move(callback), web_contents_, esc_key_locked));
}
void WebContentsPermissionHelper::RequestOpenExternalPermission(
content::RenderFrameHost* requesting_frame,
base::OnceCallback<void(bool)> callback,
bool user_gesture,
const GURL& url) {
base::Value::Dict details;
details.Set("externalURL", url.spec());
RequestPermission(
requesting_frame,
static_cast<blink::PermissionType>(PermissionType::OPEN_EXTERNAL),
std::move(callback), user_gesture, std::move(details));
}
bool WebContentsPermissionHelper::CheckMediaAccessPermission(
const url::Origin& security_origin,
blink::mojom::MediaStreamType type) const {
base::Value::Dict details;
details.Set("securityOrigin", security_origin.GetURL().spec());
details.Set("mediaType", MediaStreamTypeToString(type));
auto blink_type = type == blink::mojom::MediaStreamType::DEVICE_AUDIO_CAPTURE
? blink::PermissionType::AUDIO_CAPTURE
: blink::PermissionType::VIDEO_CAPTURE;
return CheckPermission(blink_type, std::move(details));
}
bool WebContentsPermissionHelper::CheckSerialAccessPermission(
const url::Origin& embedding_origin) const {
base::Value::Dict details;
details.Set("securityOrigin", embedding_origin.GetURL().spec());
return CheckPermission(
static_cast<blink::PermissionType>(PermissionType::SERIAL),
std::move(details));
}
WEB_CONTENTS_USER_DATA_KEY_IMPL(WebContentsPermissionHelper);
} // namespace electron