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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.
#ifndef CHROME_BROWSER_NET_SECURE_DNS_POLICY_HANDLER_H_
#define CHROME_BROWSER_NET_SECURE_DNS_POLICY_HANDLER_H_
#include <string_view>
#include "build/chromeos_buildflags.h"
#include "components/policy/core/browser/configuration_policy_handler.h"
class PrefValueMap;
namespace policy {
// Handles DnsOverHttpsMode, DnsOverHttpsTemplates,
// DnsOverHttpsTemplatesWithIdentifiers and DnsOverHttpsSalt policies.
class SecureDnsPolicyHandler : public ConfigurationPolicyHandler {
public:
SecureDnsPolicyHandler();
SecureDnsPolicyHandler(const SecureDnsPolicyHandler&) = delete;
SecureDnsPolicyHandler& operator=(const SecureDnsPolicyHandler&) = delete;
~SecureDnsPolicyHandler() override;
// ConfigurationPolicyHandler methods:
bool CheckPolicySettings(const PolicyMap& policies,
PolicyErrorMap* errors) override;
void ApplyPolicySettings(const PolicyMap& policies,
PrefValueMap* prefs) override;
private:
// Returns true if templates must be specified (i.e. `mode_str` is secure),
// but they are not set or invalid (non-string).
bool IsTemplatesPolicyNotSpecified(bool is_templates_policy_valid,
std::string_view mode_str);
// Indicates whether the DnsOverHttpsTemplates policy is valid and can be
// applied. If not, the corresponding pref is not set. If the DNS mode is
// secure, either `is_templates_policy_valid_` or, on Chrome OS only,
// `is_templates_with_identifiers_policy_valid_` must be true, otherwise
// `CheckPolicySettings` will report a policy error. Set in
// `CheckPolicySettings`.
bool is_templates_policy_valid_ = false;
#if BUILDFLAG(IS_CHROMEOS)
// Indicates whether the DnsOverHttpsTemplatesWithIdentifiers policy is valid
// and can be applied. If not, the corresponding pref is not set. Set in
// `CheckPolicySettings`.
bool is_templates_with_identifiers_policy_valid_ = false;
#endif
};
} // namespace policy
#endif // CHROME_BROWSER_NET_SECURE_DNS_POLICY_HANDLER_H_
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