test

/*******************************************************************************

 * Copyright (c) 2025, Jan Koester jan.koester@gmx.net

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions are met:

 * Redistributions of source code must retain the above copyright

 *      notice, this list of conditions and the following disclaimer.

 * Redistributions in binary form must reproduce the above copyright

 *      notice, this list of conditions and the following disclaimer in the

 *      documentation and/or other materials provided with the distribution.

 * Neither the name of the <organization> nor the

 *      names of its contributors may be used to endorse or promote products

 *      derived from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND

 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

 * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY

 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 *******************************************************************************/

#include <algorithm>

#include <iterator>

#include <cstring>

#include <mutex>

#include <uuidp.h>

#include "backend.h"

#include "types.h"

#pragma once

#define GETDATA(file) ( DATAPATH "/" #file )

#define VERSION 1

namespace authdb {

    class Client;

    class Session;

    extern class Client   AuthClient;

    extern std::mutex     AuthClientLock;

    extern class Session  AuthSession;

    struct AuthHeader{

        int    start = 0xFE;

        char   domain[255]={0};

        size_t Version=0;

        size_t Revesion=0;

    };

    class AuthData {

    public:

        AuthData(const uuid::uuid &id);

        AuthData(const AuthData &src);

        ~AuthData();

        AuthData *next() const;

        struct Record {

            int           start = 0xFE;

            unsigned char ruid[16] = {0};

            int           type = EmptyData;

            int           storage = EmptyStorage;

            char          fieldname[255] = {0};

            size_t        datasize = 0;

            char         *data = nullptr;

            size_t        count = 0;

        } Data;

        bool empty();

        AuthData& append(const AuthData &src);

        AuthData& append(const AuthData::Record &src);

    protected:

        AuthData *_next;

    private:

        friend    int  searchValue(authdb::AuthBackend &backend,const char*fieldname,const char *value);

        friend    void createRecord(AuthBackend &backend,AuthData &rec,int type);

        friend    bool getRecord(authdb::AuthBackend &backend,AuthData &rec,int type);

        friend    bool editRecord(AuthBackend &backend,AuthData &rec,int type);

        friend    void delRecord(authdb::AuthBackend &backend,const uuid::uuid &uid,int type);

    };

    template<typename T>

    void setAuthData(int type,int storage,AuthData *dat,AuthData::Record **varclass, const char *varname,const T *source,size_t sourcelen){

        AuthData::Record *target=*varclass;

        AuthData *curec=dat;

        uuid::uuid gid(dat->Data.ruid);

        if(!target){

            while(curec){

                if(curec->Data.type == type &&

                    gid==uuid::uuid(curec->Data.ruid) &&

                    strcmp(curec->Data.fieldname,varname)==0

                ){

                    target=&curec->Data;

                    target->datasize=0;

                    delete[] target->data;

                    target->data=nullptr;

                    break;

                }

                curec=curec->next();

            }

        }

        if(!target){

            AuthData::Record tmp;

            target=&dat->append(tmp).Data;

        }

        target->start=0xFE;

        std::copy(&gid.value[0], &gid.value[0]+sizeof(unsigned char[16]), target->ruid);

        target->type=type;

        target->storage=storage;

        memset(target->fieldname,0,255);

        strcpy(target->fieldname,varname);

        target->datasize=sourcelen;

        target->data=reinterpret_cast<char*>(new T[target->datasize]);

        std::copy(reinterpret_cast<const T*>(source),reinterpret_cast<const T*>(source)+target->datasize,reinterpret_cast<T*>(target->data));

        *varclass=target;

    }

    template<class T>

    const T *getAuthData(int type,int storage,class AuthData *dat,AuthData::Record **varclass,const char *varname){

        if(varclass ==nullptr ){

            throw AuthBackendError("getAuthData invalid pointer !");

        }else{

            for(AuthData *curdat=dat; curdat; curdat=curdat->next()){

                if(curdat->Data.type==type && curdat->Data.storage==storage

                    && strcmp(curdat->Data.fieldname,varname)==0 ){

                    (*varclass)=&curdat->Data;

                    return reinterpret_cast<T*>((*varclass)->data);

                }

            }

        }

        *varclass=nullptr;

        std::string err;

        err=varname;

        err+=" data not found !";

        throw(authdb::AuthBackendError(err.c_str()));

    }

    void createRecord(authdb::AuthBackend &backend,AuthData &rec,int type);

    bool getRecord(authdb::AuthBackend &backend,AuthData &rec,int type);

    bool editRecord(AuthBackend &backend,AuthData &rec,int type);

    void delRecord(authdb::AuthBackend &backend,const uuid::uuid &uid,int type);

    int searchValue(authdb::AuthBackend &backend,const char*fieldname,const char *value);

    class DomainBackend {

    public:

        DomainBackend(authdb::AuthBackend &adminbck);

        authdb::AuthBackend *data(uuid::uuid did);

        ~DomainBackend();

    private:

        authdb::AuthBackend &_adminbck;

        authdb::AuthBackend *_domainbck;

    };

};

/*******************************************************************************

 * Copyright (c) 2024, Jan Koester jan.koester@gmx.net

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions are met:

 * Redistributions of source code must retain the above copyright

 *      notice, this list of conditions and the following disclaimer.

 * Redistributions in binary form must reproduce the above copyright

 *      notice, this list of conditions and the following disclaimer in the

 *      documentation and/or other materials provided with the distribution.

 * Neither the name of the <organization> nor the

 *      names of its contributors may be used to endorse or promote products

 *      derived from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND

 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

 * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY

 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 *******************************************************************************/

#include <stdexcept>

#include <mutex>

#pragma once

namespace authdb{

    struct Record;

    enum AuthBackendType{

        File=0,

        Ceph=1

    };

    class AuthBackendError : public std::runtime_error{

    public:

        AuthBackendError(const std::string& msg = "") : runtime_error(msg) {}

    };

    class AuthBackendApi {

    public:

        virtual void write(const unsigned char *dest,size_t destsize)=0;

        virtual void read(unsigned char *src,size_t srcsize)=0;

        virtual void lock()=0;

        virtual void unlock()=0;

        virtual void setPos(size_t pos)=0;

        virtual size_t getPos()=0;

        virtual size_t end()=0;

        virtual size_t getRevesion()=0;

        virtual void newRevesion()=0;

    };

    class AuthBackend {

    public:

        AuthBackend(int type,const char *options,const char *domain);

        AuthBackend(const AuthBackend &backend);

        ~AuthBackend();

        void lock();

        void unlock();

        void setPos(size_t pos);

        size_t getPos();

        size_t getRevesion();

        void   newRevesion();

        size_t end();

        void write(const unsigned char *dest,size_t destsize);

        void read(char unsigned *src,size_t srcsize);

    private:

        int                                  _Type;

        AuthBackendApi           *_Api;

        const char                     *_Options;

        const char                     *_Domain;

        std::mutex                     _Lock;

        friend class                 AuthBackendLock;

    };

    class AuthBackendLock{

    public:

        AuthBackendLock(AuthBackend &lock);

        ~AuthBackendLock();

    private:

        AuthBackend &_Lock;

    };

};