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70 lines
2.9 KiB
C++
70 lines
2.9 KiB
C++
#pragma once
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#include <Access/MemoryAccessStorage.h>
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#include <Common/ZooKeeper/Common.h>
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namespace Poco::Util
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{
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class AbstractConfiguration;
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}
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namespace DB
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{
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class ConfigReloader;
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/// Implementation of IAccessStorage which loads all from users.xml periodically.
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class UsersConfigAccessStorage : public IAccessStorage
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{
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public:
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static constexpr char STORAGE_TYPE[] = "users.xml";
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using CheckSettingNameFunction = std::function<void(const std::string_view &)>;
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using IsNoPasswordFunction = std::function<bool()>;
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using IsPlaintextPasswordFunction = std::function<bool()>;
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UsersConfigAccessStorage(const String & storage_name_ = STORAGE_TYPE, const CheckSettingNameFunction & check_setting_name_function_ = {}, const IsNoPasswordFunction & is_no_password_allowed_function_ ={}, const IsPlaintextPasswordFunction & is_plaintext_password_allowed_function_ = {}); /// NOLINT
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UsersConfigAccessStorage(const CheckSettingNameFunction & check_setting_name_function_, const IsNoPasswordFunction & is_no_password_allowed_function_, const IsPlaintextPasswordFunction & is_plaintext_password_allowed_function_); /// NOLINT
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~UsersConfigAccessStorage() override;
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const char * getStorageType() const override { return STORAGE_TYPE; }
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String getStorageParamsJSON() const override;
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bool isReadOnly() const override { return true; }
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String getPath() const;
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bool isPathEqual(const String & path_) const;
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void setConfig(const Poco::Util::AbstractConfiguration & config);
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void load(const String & users_config_path,
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const String & include_from_path = {},
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const String & preprocessed_dir = {},
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const zkutil::GetZooKeeper & get_zookeeper_function = {});
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void reload();
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void startPeriodicReloading();
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void stopPeriodicReloading();
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bool exists(const UUID & id) const override;
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bool hasSubscription(const UUID & id) const override;
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bool hasSubscription(AccessEntityType type) const override;
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private:
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void parseFromConfig(const Poco::Util::AbstractConfiguration & config);
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std::optional<UUID> findImpl(AccessEntityType type, const String & name) const override;
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std::vector<UUID> findAllImpl(AccessEntityType type) const override;
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AccessEntityPtr readImpl(const UUID & id, bool throw_if_not_exists) const override;
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std::optional<String> readNameImpl(const UUID & id, bool throw_if_not_exists) const override;
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scope_guard subscribeForChangesImpl(const UUID & id, const OnChangedHandler & handler) const override;
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scope_guard subscribeForChangesImpl(AccessEntityType type, const OnChangedHandler & handler) const override;
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MemoryAccessStorage memory_storage;
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CheckSettingNameFunction check_setting_name_function;
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IsNoPasswordFunction is_no_password_allowed_function;
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IsPlaintextPasswordFunction is_plaintext_password_allowed_function;
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String path;
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std::unique_ptr<ConfigReloader> config_reloader;
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mutable std::mutex load_mutex;
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};
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}
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