121 lines
2.9 KiB
C++
121 lines
2.9 KiB
C++
/*
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* Copyright (c) 2018 MariaDB Corporation Ab
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*
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* Use of this software is governed by the Business Source License included
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* in the LICENSE.TXT file and at www.mariadb.com/bsl11.
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*
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* Change Date: 2024-01-15
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*
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* On the date above, in accordance with the Business Source License, use
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* of this software will be governed by version 2 or later of the General
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* Public License.
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*/
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#pragma once
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/*
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* Common definitions and includes for PAM client authenticator
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*/
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#define MXS_MODULE_NAME "PAMAuth"
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#include <maxscale/ccdefs.hh>
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#include <string>
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#include <maxbase/alloc.h>
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#include <maxscale/buffer.hh>
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#include <maxscale/dcb.hh>
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#include <maxscale/protocol/mysql.hh>
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using std::string;
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extern const string FIELD_USER;
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extern const string FIELD_HOST;
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extern const string FIELD_DB;
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extern const string FIELD_ANYDB;
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extern const string FIELD_AUTHSTR;
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extern const string FIELD_DEF_ROLE;
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extern const string FIELD_HAS_PROXY;
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extern const string FIELD_IS_ROLE;
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extern const string FIELD_ROLE;
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extern const int NUM_FIELDS;
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extern const char* SQLITE_OPEN_FAIL;
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extern const char* SQLITE_OPEN_OOM;
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extern const string TABLE_USER;
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extern const string TABLE_DB;
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extern const string TABLE_ROLES_MAPPING;
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struct sqlite3;
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class SQLite;
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/**
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* Convenience class for working with SQLite.
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*/
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class SQLite
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{
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public:
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SQLite(const SQLite& rhs) = delete;
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SQLite& operator=(const SQLite& rhs) = delete;
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using SSQLite = std::unique_ptr<SQLite>;
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template<class T>
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using Callback = int (*)(T* data, int n_columns, char** rows, char** field_names);
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/**
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* Create a new database handle.
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*
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* @param filename The filename/url given to sqlite3_open_v2
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* @param flags Flags given to sqlite3_open_v2
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* @return New handle if successful, null otherwise.
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*/
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static SSQLite create(const std::string& filename, int flags, std::string* error_out);
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~SQLite();
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/**
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* Run a simple query which returns no data.
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*
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* @param sql SQL to run
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* @return True on success
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*/
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bool exec(const std::string& sql);
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/**
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* Run a query which may return data.
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*
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* @param sql SQL to run
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* @param cb Callback given to sqlite3_exec
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* @param cb_data Data pointer given to sqlite3_exec
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* @return True on success
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*/
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template <class T>
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bool exec(const std::string& sql, Callback<T> cb, T* cb_data)
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{
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return exec_impl(sql, reinterpret_cast<CallbackVoid>(cb), cb_data);
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}
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/**
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* Calls sqlite3_busy_timeout.
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*
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* @param ms The timeout in ms
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*/
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void set_timeout(int ms);
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/**
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* Get latest error.
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*
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* @return Error string
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*/
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const char* error() const;
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private:
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using CallbackVoid = int (*)(void* data, int n_columns, char** rows, char** field_names);
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bool exec_impl(const std::string& sql, CallbackVoid cb, void* cb_data);
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SQLite(sqlite3* handle);
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sqlite3* m_dbhandle {nullptr};
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std::string m_errormsg;
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};
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