/*
 * Copyright 2000, OpenLDAP Foundation, All Rights Reserved.
 * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
 */


#ifndef LDAP_RESULT_H
#define LDAP_RESULT_H

#include<iostream>
#include<ldap.h>
#include <LDAPMessage.h>
#include <LDAPControlSet.h>
#include <LDAPUrlList.h>

class LDAPRequest;
class LDAPAsynConnection;

/**
 * This class is for representing LDAP-Result-Messages.
 *
 * It represents all Messages that were returned
 * from LDAP-Operations except for Messages of the Type 
 * LDAPMsg::SEARCH_ENTRY, LDAPMsg::SEARCH_REFERENCE and
 * LDAPMsg::EXTENDED_RESPONSE. <BR>
 * It defines a integer constant for every possible result type that can be
 * returned by the server.
 */
class LDAPResult : public LDAPMsg{
    public :
        //Error codes from RFC 2251
        static const int SUCCESS                        = 0;
        static const int OPERATIONS_ERROR               = 1;
        static const int PROTOCOL_ERROR                 = 2;
        static const int TIME_LIMIT_EXCEEDED            = 3;
        static const int SIZE_LIMIT_EXCEEDED            = 4;
        static const int COMPARE_FALSE                  = 5;
        static const int COMPARE_TRUE                   = 6;
        static const int AUTH_METHOD_NOT_SUPPORTED      = 7;
        static const int STRONG_AUTH_REQUIRED           = 8;
        
        static const int REFERRAL                       = 10;
        static const int ADMIN_LIMIT_EXCEEDED           = 11;
        static const int UNAVAILABLE_CRITICAL_EXTENSION = 12;
        static const int CONFIDENTIALITY_REQUIRED       = 13;
        static const int SASL_BIND_IN_PROGRESS          = 14;
        
        static const int NO_SUCH_ATTRIBUTE              = 16;
        static const int UNDEFINED_ATTRIBUTE_TYP        = 17;
        static const int INAPPROPRIATE_MATCHING         = 18;
        static const int CONSTRAINT_VIOLATION           = 19;
        static const int ATTRIBUTE_OR_VALUE_EXISTS      = 20;
        static const int INVALID_ATTRIBUTE_SYNTAX       = 21;
        
        static const int NO_SUCH_OBJECT                 = 32;
        static const int ALIAS_PROBLEM                  = 33;
        static const int INVALID_DN_SYNTAX              = 34;

        static const int ALIAS_DEREFERENCING_PROBLEM    = 36;

        static const int INAPPROPRIATE_AUTENTICATION    = 48;
        static const int INVALID_CREDENTIALS            = 49;
        static const int INSUFFICIENT_ACCESS            = 50;
        static const int BUSY                           = 51;
        static const int UNAVAILABLE                    = 52;
        static const int UNWILLING_TO_PERFORM           = 53;
        static const int LOOP_DETECT                    = 54;

        static const int NAMING_VIOLATION               = 64;
        static const int OBJECT_CLASS_VIOLATION         = 65;
        static const int NOT_ALLOWED_ON_NONLEAF         = 66;
        static const int NOT_ALLOWED_ON_RDN             = 67;
        static const int ENTRY_ALREADY_EXISTS           = 68;
        static const int OBJECT_CLASS_MODS_PROHIBITED   = 69;

        static const int AFFECTS_MULTIPLE_DSAS          = 71;
        
        // some Errorcodes defined in the LDAP C API DRAFT
        static const int OTHER                          = 80;
        static const int SERVER_DOWN                    = 81;
        static const int LOCAL_ERROR                    = 82;
        static const int ENCODING_ERROR                 = 83;
        static const int DECODING_ERROR                 = 84;
        static const int TIMEOUT                        = 85;
        static const int AUTH_UNKNOWN                   = 86;
        static const int FILTER_ERROR                   = 87;
        static const int USER_CANCELLED                 = 88;
        static const int PARAM_ERROR                    = 89;
        static const int NO_MEMORY                      = 90;
        static const int CONNECT_ERROR                  = 91;
        static const int NOT_SUPPORTED                  = 92;
        static const int CONTROL_NOT_FOUND              = 93;
        static const int NO_RESULTS_RETURNED            = 94;
        static const int MORE_RESULTS_TO_RETURN         = 95;
        static const int CLIENT_LOOP                    = 96;
        static const int REFERRAL_LIMIT_EXCEEDED        = 97;

        /**
         * This constructor is called by the LDAPMsg::create method in
         * order to parse a LDAPResult-Message 
         * @param req   The request the result is associated with.
         * @param msg   The LDAPMessage-structure that contains the
         *              Message.
         */
        LDAPResult(const LDAPRequest *req, LDAPMessage *msg);
        
        /**
         * The destructor.
         */
        virtual ~LDAPResult();

        /**
         * @returns The result code of the Message. Possible values are the
         *      integer constants defined in this class.
         */
        int getResultCode() const;

        /**
         * This method transforms the result code to a human-readable
         * result message.
         * @returns A std::string containing the result message.
         */
        std::string resToString() const;

        /**
         * In some case of error the server may return addional error
         * messages.
         * @returns The additional error message returned by the server.
         */
        const std::string& getErrMsg() const;

        /**
         * For messages with a result code of: NO_SUCH_OBJECT,
         * ALIAS_PROBLEM, ALIAS_DEREFERENCING_PROBLEM or INVALID_DN_SYNTAX
         * the server returns the DN of deepest entry in the DIT that could
         * be found for this operation.
         * @returns The Matched-DN value that was returned by the server.
         */
        const std::string& getMatchedDN() const;

        /**
         * @returns If the result code is REFERRAL this methode returns the
         *      URLs of the referral that was sent by the server.
         */
        const LDAPUrlList& getReferralUrls() const;

    private :
        int m_resCode;
        std::string m_matchedDN;
        std::string m_errMsg;
        LDAPUrlList m_referrals;    

    /**
     * This method can be used to dump the data of a LDAPResult-Object.
     * It is only useful for debugging purposes at the moment
     */
    friend  std::ostream& operator<<(std::ostream &s,LDAPResult &l);
};
#endif //LDAP_RESULT_H

