| // 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_H_ |
| #define CHROME_UPDATER_EXTERNAL_CONSTANTS_H_ |
| |
| #include <optional> |
| #include <vector> |
| |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/scoped_refptr.h" |
| #include "base/time/time.h" |
| #include "base/values.h" |
| |
| class GURL; |
| |
| namespace base { |
| class TimeDelta; |
| } |
| |
| namespace crx_file { |
| enum class VerifierFormat; |
| } |
| |
| namespace updater { |
| |
| // Several constants controlling the program's behavior can come from stateful |
| // external providers, such as dev-mode overrides or enterprise policies. |
| class ExternalConstants : public base::RefCountedThreadSafe<ExternalConstants> { |
| public: |
| explicit ExternalConstants(scoped_refptr<ExternalConstants> next_provider); |
| ExternalConstants(const ExternalConstants&) = delete; |
| ExternalConstants& operator=(const ExternalConstants&) = delete; |
| |
| // The URL to send update checks to. |
| virtual std::vector<GURL> UpdateURL() const = 0; |
| |
| // The URL to send crash reports to. |
| virtual GURL CrashUploadURL() const = 0; |
| |
| // The URL to fetch device management policies. |
| virtual GURL DeviceManagementURL() const = 0; |
| |
| // True if client update protocol signing of update checks is enabled. |
| virtual bool UseCUP() const = 0; |
| |
| // Time to delay the start of the automated background tasks |
| // such as update checks. |
| virtual base::TimeDelta InitialDelay() const = 0; |
| |
| // Minimum amount of time the server needs to stay alive. |
| virtual base::TimeDelta ServerKeepAliveTime() const = 0; |
| |
| // CRX format verification requirements. |
| virtual crx_file::VerifierFormat CrxVerifierFormat() const = 0; |
| |
| // Overrides for the `GroupPolicyManager`. |
| virtual base::Value::Dict GroupPolicies() const = 0; |
| |
| // Overrides the overinstall timeout. |
| virtual base::TimeDelta OverinstallTimeout() const = 0; |
| |
| // Overrides the idleness check period. |
| virtual base::TimeDelta IdleCheckPeriod() const = 0; |
| |
| // Overrides machine management state. |
| virtual std::optional<bool> IsMachineManaged() const = 0; |
| |
| // True if the updater should request and apply diff updates. |
| virtual bool EnableDiffUpdates() const = 0; |
| |
| protected: |
| friend class base::RefCountedThreadSafe<ExternalConstants>; |
| scoped_refptr<ExternalConstants> next_provider_; |
| virtual ~ExternalConstants(); |
| }; |
| |
| // Sets up an external constants chain of responsibility. May block. |
| scoped_refptr<ExternalConstants> CreateExternalConstants(); |
| |
| } // namespace updater |
| |
| #endif // CHROME_UPDATER_EXTERNAL_CONSTANTS_H_ |