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193 lines (160 loc) · 5.83 KB
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// Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.
#include "pch.h"
#include "AppInstallerLogging.h"
#include "AppInstallerStrings.h"
#include "winget/Settings.h"
#include "winget/AdminSettings.h"
#include "winget/GroupPolicy.h"
#include "winget/Yaml.h"
namespace AppInstaller::Settings
{
using namespace std::string_view_literals;
using namespace Utility;
namespace
{
constexpr std::string_view s_AdminSettingsYaml_LocalManifestFiles = "LocalManifestFiles"sv;
// Attempts to read a single scalar value from the node.
template<typename Value>
bool TryReadScalar(const YAML::Node& rootNode, std::string_view name, Value& value)
{
YAML::Node valueNode = rootNode[std::string{ name }];
if (!valueNode || !valueNode.IsScalar())
{
AICLI_LOG(Core, Verbose, << "Admin setting '" << name << "' was not found or did not contain the expected format");
return false;
}
value = valueNode.as<Value>();
return true;
}
struct AdminSettingValues
{
bool LocalManifestFiles = false;
};
struct AdminSettingsInternal
{
AdminSettingsInternal();
void SetAdminSetting(AdminSetting setting, bool enabled);
bool GetAdminSettingBoolValue(AdminSetting setting) const;
private:
void LoadAdminSettings();
[[nodiscard]] bool SaveAdminSettings();
Stream m_settingStream;
AdminSettingValues m_settingValues;
};
AdminSettingsInternal::AdminSettingsInternal() : m_settingStream(Stream::AdminSettings)
{
LoadAdminSettings();
}
void AdminSettingsInternal::SetAdminSetting(AdminSetting setting, bool enabled)
{
for (size_t i = 0; i < 10; ++i)
{
switch (setting)
{
case AdminSetting::LocalManifestFiles:
m_settingValues.LocalManifestFiles = enabled;
break;
default:
return;
}
if (SaveAdminSettings())
{
return;
}
// We need to reload the settings as they have changed
LoadAdminSettings();
}
THROW_HR_MSG(E_UNEXPECTED, "Too many attempts at SaveAdminSettings");
}
bool AdminSettingsInternal::GetAdminSettingBoolValue(AdminSetting setting) const
{
switch (setting)
{
case AdminSetting::LocalManifestFiles:
return m_settingValues.LocalManifestFiles;
default:
return false;
}
}
void AdminSettingsInternal::LoadAdminSettings()
{
auto stream = m_settingStream.Get();
if (!stream)
{
AICLI_LOG(Core, Verbose, << "Admin settings was not found");
return;
}
std::string adminSettingsYaml = Utility::ReadEntireStream(*stream);
YAML::Node document;
try
{
document = YAML::Load(adminSettingsYaml);
}
catch (const std::exception& e)
{
AICLI_LOG(YAML, Error, << "Admin settings contained invalid YAML (" << e.what() << ")");
return;
}
if (document.IsNull())
{
AICLI_LOG(Core, Info, << "Admin settings is empty");
return;
}
if (!document.IsMap())
{
AICLI_LOG(Core, Error, << "Admin settings did not contain the expected format");
return;
}
TryReadScalar<bool>(document, s_AdminSettingsYaml_LocalManifestFiles, m_settingValues.LocalManifestFiles);
}
bool AdminSettingsInternal::SaveAdminSettings()
{
YAML::Emitter out;
out << YAML::BeginMap;
out << YAML::Key << s_AdminSettingsYaml_LocalManifestFiles << YAML::Value << m_settingValues.LocalManifestFiles;
out << YAML::EndMap;
return m_settingStream.Set(out.str());
}
}
AdminSetting StringToAdminSetting(std::string_view in)
{
AdminSetting result = AdminSetting::Unknown;
if (Utility::CaseInsensitiveEquals(s_AdminSettingsYaml_LocalManifestFiles, in))
{
result = AdminSetting::LocalManifestFiles;
}
return result;
}
std::string_view AdminSettingToString(AdminSetting setting)
{
switch (setting)
{
case AdminSetting::LocalManifestFiles:
return s_AdminSettingsYaml_LocalManifestFiles;
default:
return "Unknown"sv;
}
}
void EnableAdminSetting(AdminSetting setting)
{
AdminSettingsInternal adminSettingsInternal;
adminSettingsInternal.SetAdminSetting(setting, true);
}
void DisableAdminSetting(AdminSetting setting)
{
AdminSettingsInternal adminSettingsInternal;
adminSettingsInternal.SetAdminSetting(setting, false);
}
bool IsAdminSettingEnabled(AdminSetting setting)
{
// For some admin settings, even if it's disabled, if the corresponding policy is enabled then override it.
if (setting == AdminSetting::LocalManifestFiles &&
GroupPolicies().GetState(TogglePolicy::Policy::LocalManifestFiles) == PolicyState::Enabled)
{
return true;
}
AdminSettingsInternal adminSettingsInternal;
return adminSettingsInternal.GetAdminSettingBoolValue(setting);
}
}