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// Copyright 2019 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/system_media_capture_permissions_stats_mac.h"
#include "base/metrics/histogram_functions.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/media/webrtc/system_media_capture_permissions_mac.h"
#include "components/prefs/pref_registry_simple.h"
#include "components/prefs/pref_service.h"
namespace system_media_permissions {
namespace {
using ::system_permission_settings::SystemPermission;
const char kSystemPermissionMicFirstBlockedTimePref[] =
"system_permission.mic.first_blocked_time";
const char kSystemPermissionMicLastBlockedTimePref[] =
"system_permission.mic.last_blocked_time";
const char kSystemPermissionCameraFirstBlockedTimePref[] =
"system_permission.camera.first_blocked_time";
const char kSystemPermissionCameraLastBlockedTimePref[] =
"system_permission.camera.last_blocked_time";
void LogStartupMicSystemPermission(SystemPermission permission) {
base::UmaHistogramEnumeration(
"Media.Audio.Capture.Mac.MicSystemPermission.Startup", permission);
}
void LogStartupCameraSystemPermission(SystemPermission permission) {
base::UmaHistogramEnumeration(
"Media.Video.Capture.Mac.CameraSystemPermission.Startup", permission);
}
void MaybeLogAdditionalMicSystemPermissionStats(SystemPermission permission) {
PrefService* prefs = g_browser_process->local_state();
if (!prefs->HasPrefPath(kSystemPermissionMicFirstBlockedTimePref)) {
DCHECK(!prefs->HasPrefPath(kSystemPermissionMicLastBlockedTimePref));
return;
}
// A pref exists, so there was a failure accessing the mic due to blocked
// system permission before the last restart. Log additional stats.
DCHECK(prefs->HasPrefPath(kSystemPermissionMicLastBlockedTimePref));
base::UmaHistogramEnumeration("Media.Audio.Capture.Mac.MicSystemPermission."
"StartupAfterFailure",
permission);
// If the state has changed to allowed, log the time it took since first
// and last failure before restart. Check for positive time delta, since
// the system clock may change at any time.
if (permission == SystemPermission::kAllowed) {
base::Time stored_time =
prefs->GetTime(kSystemPermissionMicFirstBlockedTimePref);
base::TimeDelta time_delta = base::Time::Now() - stored_time;
if (time_delta.is_positive()) {
base::UmaHistogramCustomTimes(
"Media.Audio.Capture.Mac.MicSystemPermission."
"FixedTime.SinceFirstFailure",
time_delta, base::Seconds(1), base::Hours(1), 50);
}
stored_time = prefs->GetTime(kSystemPermissionMicLastBlockedTimePref);
time_delta = base::Time::Now() - stored_time;
if (time_delta.is_positive()) {
base::UmaHistogramCustomTimes(
"Media.Audio.Capture.Mac.MicSystemPermission."
"FixedTime.SinceLastFailure",
time_delta, base::Seconds(1), base::Hours(1), 50);
}
}
prefs->ClearPref(kSystemPermissionMicFirstBlockedTimePref);
prefs->ClearPref(kSystemPermissionMicLastBlockedTimePref);
}
void MaybeLogAdditionalCameraSystemPermissionStats(
SystemPermission permission) {
PrefService* prefs = g_browser_process->local_state();
if (!prefs->HasPrefPath(kSystemPermissionCameraFirstBlockedTimePref)) {
DCHECK(!prefs->HasPrefPath(kSystemPermissionCameraLastBlockedTimePref));
return;
}
// A pref exists, so there was a failure accessing the camera due to blocked
// system permission before the last restart. Log additional stats.
DCHECK(prefs->HasPrefPath(kSystemPermissionCameraLastBlockedTimePref));
base::UmaHistogramEnumeration(
"Media.Video.Capture.Mac.CameraSystemPermission."
"StartupAfterFailure",
permission);
// If the state has changed to allowed, log the time it took since first
// and last failure before restart. Check for positive time delta, since
// the system clock may change at any time.
if (permission == SystemPermission::kAllowed) {
base::Time stored_time =
prefs->GetTime(kSystemPermissionCameraFirstBlockedTimePref);
base::TimeDelta time_delta = base::Time::Now() - stored_time;
if (time_delta.is_positive()) {
base::UmaHistogramCustomTimes(
"Media.Video.Capture.Mac.CameraSystemPermission.FixedTime."
"SinceFirstFailure",
time_delta, base::Seconds(1), base::Hours(1), 50);
}
stored_time = prefs->GetTime(kSystemPermissionCameraLastBlockedTimePref);
time_delta = base::Time::Now() - stored_time;
if (time_delta.is_positive()) {
base::UmaHistogramCustomTimes(
"Media.Video.Capture.Mac.CameraSystemPermission.FixedTime."
"SinceLastFailure",
time_delta, base::Seconds(1), base::Hours(1), 50);
}
}
prefs->ClearPref(kSystemPermissionCameraFirstBlockedTimePref);
prefs->ClearPref(kSystemPermissionCameraLastBlockedTimePref);
}
} // namespace
void RegisterSystemMediaPermissionStatesPrefs(PrefRegistrySimple* registry) {
registry->RegisterTimePref(kSystemPermissionMicFirstBlockedTimePref,
base::Time());
registry->RegisterTimePref(kSystemPermissionMicLastBlockedTimePref,
base::Time());
registry->RegisterTimePref(kSystemPermissionCameraFirstBlockedTimePref,
base::Time());
registry->RegisterTimePref(kSystemPermissionCameraLastBlockedTimePref,
base::Time());
}
void LogSystemMediaPermissionsStartupStats() {
const system_permission_settings::SystemPermission audio_permission =
system_permission_settings::CheckSystemAudioCapturePermission();
LogStartupMicSystemPermission(audio_permission);
MaybeLogAdditionalMicSystemPermissionStats(audio_permission);
const system_permission_settings::SystemPermission video_permission =
system_permission_settings::CheckSystemVideoCapturePermission();
LogStartupCameraSystemPermission(video_permission);
MaybeLogAdditionalCameraSystemPermissionStats(video_permission);
// CheckSystemScreenCapturePermission() will log a sample of the permission.
CheckSystemScreenCapturePermission();
}
void SystemAudioCapturePermissionDetermined(SystemPermission permission) {
DCHECK_NE(permission, SystemPermission::kNotDetermined);
LogStartupMicSystemPermission(permission);
}
void SystemVideoCapturePermissionDetermined(SystemPermission permission) {
DCHECK_NE(permission, SystemPermission::kNotDetermined);
LogStartupCameraSystemPermission(permission);
}
void LogSystemScreenCapturePermission(bool allowed) {
base::UmaHistogramBoolean(
"Media.Video.Capture.Mac.ScreenCaptureSystemPermission", allowed);
}
void SystemAudioCapturePermissionBlocked() {
PrefService* prefs = g_browser_process->local_state();
if (!prefs->HasPrefPath(kSystemPermissionMicFirstBlockedTimePref)) {
prefs->SetTime(kSystemPermissionMicFirstBlockedTimePref, base::Time::Now());
}
prefs->SetTime(kSystemPermissionMicLastBlockedTimePref, base::Time::Now());
}
void SystemVideoCapturePermissionBlocked() {
PrefService* prefs = g_browser_process->local_state();
if (!prefs->HasPrefPath(kSystemPermissionCameraFirstBlockedTimePref)) {
prefs->SetTime(kSystemPermissionCameraFirstBlockedTimePref,
base::Time::Now());
}
prefs->SetTime(kSystemPermissionCameraLastBlockedTimePref, base::Time::Now());
}
} // namespace system_media_permissions
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