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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_UPDATER_EXTERNAL_CONSTANTS_BUILDER_H_
#define CHROME_UPDATER_EXTERNAL_CONSTANTS_BUILDER_H_
#include <optional>
#include <string>
#include <vector>
#include "base/files/file_path.h"
#include "base/values.h"
namespace base {
class TimeDelta;
}
namespace crx_file {
enum class VerifierFormat;
}
namespace updater {
// ExternalConstantsBuilder uses the Builder design pattern to write a set of
// overrides for default constant values to the file loaded by
// ExternalConstantsOverrider. It is not thread-safe.
//
// When writing an overrides file, unset values (either because they were never
// set or because they were cleared) are not included in the file, so the
// "real" value would be used instead. An ExternalConstantsBuilder with
// no values set would write an empty JSON object, which is a valid override
// file that overrides nothing.
//
// If an ExternalConstantsBuilder is destroyed with no calls to Overwrite(),
// it logs an error.
class ExternalConstantsBuilder {
public:
ExternalConstantsBuilder() = default;
~ExternalConstantsBuilder();
ExternalConstantsBuilder& SetUpdateURL(const std::vector<std::string>& urls);
ExternalConstantsBuilder& ClearUpdateURL();
ExternalConstantsBuilder& SetCrashUploadURL(const std::string& url);
ExternalConstantsBuilder& ClearCrashUploadURL();
ExternalConstantsBuilder& SetDeviceManagementURL(const std::string& url);
ExternalConstantsBuilder& ClearDeviceManagementURL();
ExternalConstantsBuilder& SetAppLogoURL(const std::string& url);
ExternalConstantsBuilder& ClearAppLogoURL();
ExternalConstantsBuilder& SetUseCUP(bool use_cup);
ExternalConstantsBuilder& ClearUseCUP();
ExternalConstantsBuilder& SetInitialDelay(base::TimeDelta initial_delay);
ExternalConstantsBuilder& ClearInitialDelay();
ExternalConstantsBuilder& SetServerKeepAliveTime(
base::TimeDelta server_keep_alive_seconds);
ExternalConstantsBuilder& ClearServerKeepAliveSeconds();
ExternalConstantsBuilder& SetCrxVerifierFormat(
crx_file::VerifierFormat crx_verifier_format);
ExternalConstantsBuilder& ClearCrxVerifierFormat();
ExternalConstantsBuilder& SetDictPolicies(
const base::Value::Dict& dict_policies);
ExternalConstantsBuilder& ClearDictPolicies();
ExternalConstantsBuilder& SetOverinstallTimeout(
base::TimeDelta overinstall_timeout);
ExternalConstantsBuilder& ClearOverinstallTimeout();
ExternalConstantsBuilder& SetIdleCheckPeriod(
base::TimeDelta idle_check_period);
ExternalConstantsBuilder& ClearIdleCheckPeriod();
ExternalConstantsBuilder& SetMachineManaged(
std::optional<bool> is_managed_device);
ExternalConstantsBuilder& ClearMachineManaged();
ExternalConstantsBuilder& SetCecaConnectionTimeout(
base::TimeDelta ceca_connection_timeout);
ExternalConstantsBuilder& ClearCecaConnectionTimeout();
// Write the external constants overrides file in the default location
// with the values that have been previously set, replacing any file
// previously there. The builder remains usable, does not forget its state,
// and subsequent calls to Overwrite will once again replace the file.
//
// Returns true on success, false on failure.
bool Overwrite();
// Blend the set values in this instance with the external constants overrides
// file in the default location.
bool Modify();
private:
base::Value::Dict overrides_;
bool written_ = false;
};
} // namespace updater
#endif // CHROME_UPDATER_EXTERNAL_CONSTANTS_BUILDER_H_
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