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#ifndef BD_H
#define BD_H

#include "hash.h"

/* ----------------------------------------------------------------------------------
 *  Callbacks
 */

/*
 * A callback for completing a given user's digest ha1. In this function
 * you're required to fill in the digest ha1 hash for the user. ha1 will
 * always be an array of MD5_LEN bytes.
 *
 * Return Values
 * HA_OK: completed successfully
 * HA_FAILED: error retrieving hash (should have logged error)
 */
typedef int (*bd_complete_digest)(ha_request_t* rq,
                                  const char* user, unsigned char* ha1);

/*
 * A callback for validating a given user's password.
 *
 * Return Values
 * HA_OK: good password
 * HA_FALSE: invalid password
 * HA_FAILED: error validating (should have logged error)
 */
typedef int (*bd_validate_basic)(ha_request_t* rq,
                                 const char* user, const char* password);

/* ----------------------------------------------------------------------------------
 *  Base Context
 */
typedef struct bd_context
{
    hsh_t* cache;            /* Some cached records or basic */

    bd_complete_digest  f_complete_digest;
    bd_validate_basic   f_validate_basic;
}
bd_context_t;

#define BD_CALLBACKS(a, b) { NULL, (a), (b) }
#define BD_DEFAULTS { NULL, NULL, NULL }

/* ----------------------------------------------------------------------------------
 *  Base Handler Functions
 */

/*
 * The base/digest initialize function. Call this from your
 * 'derived' handler initialize function.
 */
int bd_init(ha_context_t* context);

/*
 * The base/digest uninitialize function. Call this from your
 * 'derived' handler uninitialize function.
 */
void bd_destroy(ha_context_t* context);

/*
 * The base/digest processer for requests. Call this from your
 * 'derived' handler process function.
 */
int bd_process(ha_request_t* rq);

#endif /* BD_H */