/*
 * File      : wn_module.h
 * This file is part of RT-Thread RTOS
 * COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
 *
 * This software is dual-licensed: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation. For the terms of this
 * license, see <http://www.gnu.org/licenses/>.
 *
 * You are free to use this software under the terms of the GNU General
 * Public License, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details.
 *
 * Alternatively for commercial application, you can contact us
 * by email <business@rt-thread.com> for commercial license.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with this program; if not, write to the Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Change Logs:
 * Date           Author       Notes
 * 2011-08-02     Bernard      the first version
 * 2011-08-06     Bernard      add webnet_alias_set declaration
 * 2012-06-25     Bernard      add SSI and Upload module
 */

#ifndef __WN_MODULE_H__
#define __WN_MODULE_H__

#include <wn_session.h>

#ifdef __cplusplus
extern "C" {
#endif

/* initialization event */
#define WEBNET_EVENT_INIT           (1 << 0)
/* map uri request to physical url */
#define WEBNET_EVENT_URI_PHYSICAL   (1 << 1)
/* uri request */
#define WEBNET_EVENT_URI_POST       (1 << 2)
/* header of response */
#define WEBNET_EVENT_RSP_HEADER     (1 << 3)
/* file content of response */
#define WEBNET_EVENT_RSP_FILE       (1 << 4)


/* continue other modules */
#define WEBNET_MODULE_CONTINUE      0
/* this session is finished */
#define WEBNET_MODULE_FINISHED      1

int webnet_module_handle_event(struct webnet_session* session, int event);
int webnet_module_system_dofile(struct webnet_session* session);
int webnet_module_handle_uri(struct webnet_session* session);

/* module function pre-declaration */
int webnet_module_alias(struct webnet_session* sesion, int event);
int webnet_module_auth(struct webnet_session* session, int event);
int webnet_module_asp(struct webnet_session* session, int event);
int webnet_module_cgi(struct webnet_session* session, int event);
int webnet_module_dirindex(struct webnet_session* session, int event);
int webnet_module_log(struct webnet_session* session, int event);
int webnet_module_lua(struct webnet_session* sesion, int event);
int webnet_module_ssl(struct webnet_session* sesion, int event);
int webnet_module_ssi(struct webnet_session* session, int event);
int webnet_module_dav(struct webnet_session* session, int event);
int webnet_module_dmr(struct webnet_session* session, int event);

/* add ASP variable */
void webnet_asp_add_var(const char* name, void (*handler)(struct webnet_session* session));
/* register CGI event */
void webnet_cgi_register(const char* name, void (*handler)(struct webnet_session* session));
void webnet_cgi_set_root(const char* root);
/* set basic authentication configure */
void webnet_auth_set(const char* path, const char* username_password);
/* set directory alias */
void webnet_alias_set(char* old_path, char* new_path);
#if defined(WEBNET_USING_SSI_VIRTUAL_HANDLER)
/* register ssi virtual event */
void webnet_ssi_virtual_register(const char* name, void (*handler)(struct webnet_session* session));
#endif
/* upload module */
struct webnet_module_upload_entry
{
    const char* url;

    int (*upload_open) (struct webnet_session* session);
    int (*upload_close)(struct webnet_session* session);
    int (*upload_write)(struct webnet_session* session, const void* data, rt_size_t length);
    int (*upload_done) (struct webnet_session* session);
};
int webnet_module_upload(struct webnet_session* session, int event);
void webnet_upload_add(const struct webnet_module_upload_entry* entry);

const char* webnet_upload_get_filename(struct webnet_session* session);
const char* webnet_upload_get_content_type(struct webnet_session* session);
const char* webnet_upload_get_nameentry(struct webnet_session* session, const char* name);
const void* webnet_upload_get_userdata(struct webnet_session* session);

int webnet_upload_file_open(struct webnet_session* session);
int webnet_upload_file_close(struct webnet_session* session);
int webnet_upload_file_write(struct webnet_session* session, const void* data, rt_size_t length);

#ifdef  __cplusplus
    }
#endif

#endif /* __WN_MODULE_H__ */