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// Copyright 2012 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/renderer_preferences_util.h"
#include <stdint.h>
#include <string>
#include <vector>
#include "base/logging.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_util.h"
#include "build/build_config.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/net/convert_explicitly_allowed_network_ports_pref.h"
#include "chrome/browser/privacy_sandbox/tracking_protection_settings_factory.h"
#if BUILDFLAG(IS_CHROMEOS)
#include "chrome/browser/ash/login/demo_mode/demo_session.h"
#endif
#include "chrome/browser/profiles/profile.h"
#include "chrome/common/pref_names.h"
#include "components/autofill/core/common/autofill_prefs.h"
#include "components/language/core/browser/language_prefs.h"
#include "components/language/core/browser/pref_names.h"
#include "components/prefs/pref_service.h"
#include "components/privacy_sandbox/tracking_protection_settings.h"
#include "content/public/browser/renderer_preferences_util.h"
#include "media/media_buildflags.h"
#include "third_party/blink/public/common/peerconnection/webrtc_ip_handling_policy.h"
#include "third_party/blink/public/common/renderer_preferences/renderer_preferences.h"
#include "third_party/blink/public/mojom/peerconnection/webrtc_ip_handling_policy.mojom.h"
#include "third_party/blink/public/public_buildflags.h"
#include "third_party/skia/include/core/SkColor.h"
#include "ui/accessibility/platform/ax_platform.h"
#include "ui/base/ui_base_features.h"
#if defined(TOOLKIT_VIEWS)
#include "ui/views/controls/textfield/textfield.h"
#endif
#if defined(USE_AURA) && BUILDFLAG(IS_LINUX)
#include "chrome/browser/themes/theme_service.h"
#include "chrome/browser/themes/theme_service_factory.h"
#include "ui/linux/linux_ui.h"
#endif
namespace {
// Parses a string |range| with a port range in the form "<min>-<max>".
// If |range| is not in the correct format or contains an invalid range, zero
// is written to |min_port| and |max_port|.
// TODO(guidou): Consider replacing with remoting/protocol/port_range.cc
void ParsePortRange(const std::string& range,
uint16_t* min_port,
uint16_t* max_port) {
*min_port = 0;
*max_port = 0;
if (range.empty())
return;
size_t separator_index = range.find('-');
if (separator_index == std::string::npos)
return;
std::string min_port_string, max_port_string;
base::TrimWhitespaceASCII(range.substr(0, separator_index), base::TRIM_ALL,
&min_port_string);
base::TrimWhitespaceASCII(range.substr(separator_index + 1), base::TRIM_ALL,
&max_port_string);
unsigned min_port_uint, max_port_uint;
if (!base::StringToUint(min_port_string, &min_port_uint) ||
!base::StringToUint(max_port_string, &max_port_uint)) {
return;
}
if (min_port_uint == 0 || min_port_uint > max_port_uint ||
max_port_uint > UINT16_MAX) {
return;
}
*min_port = static_cast<uint16_t>(min_port_uint);
*max_port = static_cast<uint16_t>(max_port_uint);
}
// Extracts the string representation of URLs allowed for local IP exposure.
std::vector<std::string> GetLocalIpsAllowedUrls(
const base::Value::List& allowed_urls) {
std::vector<std::string> ret;
for (const auto& url : allowed_urls)
ret.push_back(url.GetString());
return ret;
}
std::string GetLanguageListForProfile(Profile* profile,
const std::string& language_list) {
if (profile->IsOffTheRecord()) {
// In incognito mode return only the first language.
return language::GetFirstLanguage(language_list);
}
return language_list;
}
} // namespace
namespace renderer_preferences_util {
void UpdateFromSystemSettings(blink::RendererPreferences* prefs,
Profile* profile) {
const PrefService* pref_service = profile->GetPrefs();
prefs->accept_languages = GetLanguageListForProfile(
profile, pref_service->GetString(language::prefs::kAcceptLanguages));
prefs->enable_referrers = pref_service->GetBoolean(prefs::kEnableReferrers);
prefs->enable_do_not_track =
TrackingProtectionSettingsFactory::GetForProfile(profile)
->IsDoNotTrackEnabled();
prefs->enable_encrypted_media =
pref_service->GetBoolean(prefs::kEnableEncryptedMedia);
#if BUILDFLAG(IS_ANDROID)
prefs->uses_platform_autofill = pref_service->GetBoolean(
autofill::prefs::kAutofillUsingVirtualViewStructure);
#else // if !BUILDFLAG(IS_ANDROID)
prefs->caret_browsing_enabled =
pref_service->GetBoolean(prefs::kCaretBrowsingEnabled);
ui::AXPlatform::GetInstance().SetCaretBrowsingState(
prefs->caret_browsing_enabled);
#endif
prefs->webrtc_ip_handling_policy = blink::ToWebRTCIPHandlingPolicy(
pref_service->GetString(prefs::kWebRTCIPHandlingPolicy));
const base::Value::List& webrtc_ip_handling_urls =
pref_service->GetList(prefs::kWebRTCIPHandlingUrl);
for (const base::Value& entry : webrtc_ip_handling_urls) {
const base::Value::Dict& dict = entry.GetDict();
const std::string* url = dict.FindString("url");
if (!url) {
DVLOG(1) << "Malformed WebRtcIPHandlingUrl entry: Missing 'url' value.";
continue;
}
ContentSettingsPattern pattern = ContentSettingsPattern::FromString(*url);
if (!pattern.IsValid()) {
DVLOG(1)
<< "Malformed WebRtcIPHandlingUrl entry: Invalid pattern found: '"
<< *url << "'.";
continue;
}
const std::string* handling = dict.FindString("handling");
if (!handling) {
DVLOG(1)
<< "Malformed WebRtcIPHandlingUrl entry: Missing 'handling' value.";
continue;
}
prefs->webrtc_ip_handling_urls.push_back(
{pattern, blink::ToWebRTCIPHandlingPolicy(*handling)});
}
std::string webrtc_udp_port_range =
pref_service->GetString(prefs::kWebRTCUDPPortRange);
ParsePortRange(webrtc_udp_port_range, &prefs->webrtc_udp_min_port,
&prefs->webrtc_udp_max_port);
const base::Value::List& allowed_urls =
pref_service->GetList(prefs::kWebRtcLocalIpsAllowedUrls);
prefs->webrtc_local_ips_allowed_urls = GetLocalIpsAllowedUrls(allowed_urls);
#if defined(USE_AURA)
prefs->focus_ring_color = SkColorSetRGB(0x4D, 0x90, 0xFE);
#if BUILDFLAG(IS_CHROMEOS)
// This color is 0x544d90fe modulated with 0xffffff.
prefs->active_selection_bg_color = SkColorSetRGB(0xCB, 0xE4, 0xFA);
prefs->active_selection_fg_color = SK_ColorBLACK;
prefs->inactive_selection_bg_color = SkColorSetRGB(0xEA, 0xEA, 0xEA);
prefs->inactive_selection_fg_color = SK_ColorBLACK;
#endif
#endif
#if defined(TOOLKIT_VIEWS)
prefs->caret_blink_interval = views::Textfield::GetCaretBlinkInterval();
#endif
#if defined(USE_AURA) && BUILDFLAG(IS_LINUX)
auto* linux_ui_theme = ui::LinuxUiTheme::GetForProfile(profile);
if (linux_ui_theme) {
if (ThemeServiceFactory::GetForProfile(profile)->UsingSystemTheme()) {
linux_ui_theme->GetFocusRingColor(&prefs->focus_ring_color);
linux_ui_theme->GetActiveSelectionBgColor(
&prefs->active_selection_bg_color);
linux_ui_theme->GetActiveSelectionFgColor(
&prefs->active_selection_fg_color);
linux_ui_theme->GetInactiveSelectionBgColor(
&prefs->inactive_selection_bg_color);
linux_ui_theme->GetInactiveSelectionFgColor(
&prefs->inactive_selection_fg_color);
}
}
// If we have a linux_ui object, set the caret blink interval regardless of
// whether we're in native theme mode.
if (auto* linux_ui = ui::LinuxUi::instance())
prefs->caret_blink_interval = linux_ui->GetCursorBlinkInterval();
#endif
#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_ANDROID) || \
BUILDFLAG(IS_WIN)
content::UpdateFontRendererPreferencesFromSystemSettings(prefs);
#endif
#if !BUILDFLAG(IS_MAC)
prefs->plugin_fullscreen_allowed =
pref_service->GetBoolean(prefs::kFullscreenAllowed);
#endif
PrefService* local_state = g_browser_process->local_state();
if (local_state) {
prefs->allow_cross_origin_auth_prompt =
local_state->GetBoolean(prefs::kAllowCrossOriginAuthPrompt);
prefs->explicitly_allowed_network_ports =
ConvertExplicitlyAllowedNetworkPortsPref(local_state);
}
#if BUILDFLAG(IS_MAC)
prefs->focus_ring_color = SkColorSetRGB(0x00, 0x5F, 0xCC);
#else
prefs->focus_ring_color = SkColorSetRGB(0x10, 0x10, 0x10);
#endif
prefs->view_source_line_wrap_enabled =
pref_service->GetBoolean(prefs::kViewSourceLineWrappingEnabled);
}
} // namespace renderer_preferences_util
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