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101 lines
3.2 KiB
C++
101 lines
3.2 KiB
C++
#pragma once
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#include <Access/AccessFlags.h>
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namespace DB
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{
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/// An element of access rights which can be represented by single line
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/// GRANT ... ON ...
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struct AccessRightsElement
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{
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AccessFlags access_flags;
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String database;
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String table;
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Strings columns;
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bool any_database = true;
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bool any_table = true;
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bool any_column = true;
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AccessRightsElement() = default;
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AccessRightsElement(const AccessRightsElement &) = default;
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AccessRightsElement & operator=(const AccessRightsElement &) = default;
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AccessRightsElement(AccessRightsElement &&) = default;
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AccessRightsElement & operator=(AccessRightsElement &&) = default;
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AccessRightsElement(AccessFlags access_flags_) : access_flags(access_flags_) {}
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AccessRightsElement(AccessFlags access_flags_, const std::string_view & database_)
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: access_flags(access_flags_), database(database_), any_database(false)
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{
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}
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AccessRightsElement(AccessFlags access_flags_, const std::string_view & database_, const std::string_view & table_)
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: access_flags(access_flags_), database(database_), table(table_), any_database(false), any_table(false)
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{
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}
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AccessRightsElement(
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AccessFlags access_flags_, const std::string_view & database_, const std::string_view & table_, const std::string_view & column_)
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: access_flags(access_flags_)
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, database(database_)
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, table(table_)
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, columns({String{column_}})
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, any_database(false)
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, any_table(false)
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, any_column(false)
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{
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}
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AccessRightsElement(
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AccessFlags access_flags_,
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const std::string_view & database_,
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const std::string_view & table_,
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const std::vector<std::string_view> & columns_)
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: access_flags(access_flags_), database(database_), table(table_), any_database(false), any_table(false), any_column(false)
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{
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columns.resize(columns_.size());
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for (size_t i = 0; i != columns_.size(); ++i)
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columns[i] = String{columns_[i]};
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}
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AccessRightsElement(
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AccessFlags access_flags_, const std::string_view & database_, const std::string_view & table_, const Strings & columns_)
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: access_flags(access_flags_)
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, database(database_)
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, table(table_)
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, columns(columns_)
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, any_database(false)
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, any_table(false)
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, any_column(false)
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{
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}
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/// Sets the database.
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void setDatabase(const String & new_database);
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/// If the database is empty, replaces it with `new_database`. Otherwise does nothing.
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void replaceEmptyDatabase(const String & new_database);
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bool isEmptyDatabase() const;
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/// Returns a human-readable representation like "SELECT, UPDATE(x, y) ON db.table".
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/// The returned string isn't prefixed with the "GRANT" keyword.
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String toString() const;
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};
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/// Multiple elements of access rights.
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class AccessRightsElements : public std::vector<AccessRightsElement>
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{
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public:
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/// Replaces the empty database with `new_database`.
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void replaceEmptyDatabase(const String & new_database);
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/// Returns a human-readable representation like "SELECT, UPDATE(x, y) ON db.table".
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/// The returned string isn't prefixed with the "GRANT" keyword.
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String toString() const;
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};
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}
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