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/* =================================================================
*
* http.h
*
* Improved HTTPD server.
*
* =================================================================
* ####ECOSGPLCOPYRIGHTBEGIN####
* -------------------------------------------
* This file is part of eCos, the Embedded Configurable Operating System.
* Copyright (C) 2005 Free Software Foundation, Inc.
*
* eCos is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 or (at your option) any later
* version.
*
* eCos is distributed in the hope that it will be useful, 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.
*
* You should have received a copy of the GNU General Public License
* along with eCos; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* As a special exception, if other files instantiate templates or use
* macros or inline functions from this file, or you compile this file
* and link it with other works to produce a work based on this file,
* this file does not by itself cause the resulting work to be covered by
* the GNU General Public License. However the source code for this file
* must still be made available in accordance with section (3) of the GNU
* General Public License v2.
*
* This exception does not invalidate any other reasons why a work based
* on this file might be covered by the GNU General Public License.
* -------------------------------------------
* ####ECOSGPLCOPYRIGHTEND####
* =================================================================
* #####DESCRIPTIONBEGIN####
*
* Author(s): Anthony Tonizzo (atonizzo@gmail.com)
* Contributors:
* Date: 2006-06-12
* Purpose:
* Description:
*
* ####DESCRIPTIONEND####
*
* =================================================================
*/
#ifndef __HTTP_H__
#define __HTTP_H__
#include <pkgconf/system.h>
#include <pkgconf/isoinfra.h>
#include <cyg/hal/hal_tables.h>
#include <pkgconf/athttpd.h>
#include <cyg/athttpd/auth.h>
#ifdef CYGOPT_NET_ATHTTPD_USE_CGIBIN_TCL
#include <cyg/athttpd/jim.h>
#endif
typedef enum cyg_httpd_req_type
{
CYG_HTTPD_METHOD_GET = 1,
CYG_HTTPD_METHOD_HEAD = 2,
CYG_HTTPD_METHOD_POST = 3
} cyg_httpd_req_type;
#define CYG_HTTPD_MAXURL 128
#define CYG_HTTPD_MAXPATH 128
#define CYG_HTTPD_MAXINBUFFER CYGNUM_ATHTTPD_SERVER_BUFFER_SIZE
#define CYG_HTTPD_MAXOUTBUFFER CYGNUM_ATHTTPD_SERVER_BUFFER_SIZE
#define CYG_HTTPD_DEFAULT_CGIBIN_OBJLOADER_EXTENSION ".o"
#define CYG_HTTPD_DEFAULT_CGIBIN_TCL_EXTENSION ".tcl"
#define CYG_HTTPD_TIME_STRING_LEN 32
#define CYG_HTTPD_STATUS_OK 200
#define CYG_HTTPD_STATUS_MOVED_PERMANENTLY 301
#define CYG_HTTPD_STATUS_MOVED_TEMPORARILY 302
#define CYG_HTTPD_STATUS_NOT_MODIFIED 304
#define CYG_HTTPD_STATUS_BAD_REQUEST 400
#define CYG_HTTPD_STATUS_NOT_AUTHORIZED 401
#define CYG_HTTPD_STATUS_FORBIDDEN 403
#define CYG_HTTPD_STATUS_NOT_FOUND 404
#define CYG_HTTPD_STATUS_METHOD_NOT_ALLOWED 405
#define CYG_HTTPD_STATUS_SYSTEM_ERROR 500
#define CYG_HTTPD_STATUS_NOT_IMPLEMENTED 501
#define CYG_HTTPD_MODE_CLOSE_CONN 0x0001
#define CYG_HTTPD_MODE_TRANSFER_CHUNKED 0x0002
#define CYG_HTTPD_MODE_SEND_HEADER_ONLY 0x0004
#define CYG_HTTPD_MODE_NO_CACHE 0x0008
#define CYG_HTTPD_MODE_FORM_DATA 0x0010
// This must be generated at random...
#define CYG_HTTPD_MD5_AUTH_NAME "MD5"
#define CYG_HTTPD_MD5_AUTH_QOP "auth"
#define CYG_HTTPD_MD5_AUTH_OPAQUE "0000000000000000"
#define TIME_FORMAT_RFC1123 "%a, %d %b %Y %H:%H:%S GMT"
typedef struct __socket_entry
{
cyg_int32 descriptor;
time_t timestamp;
} socket_entry;
// =============================================================================
// Main HTTP structure.
// =============================================================================
typedef struct
{
cyg_httpd_req_type method;
fd_set rfds;
cyg_int32 host[4];
char url[CYG_HTTPD_MAXURL+1];
char inbuffer[CYG_HTTPD_MAXINBUFFER+1];
cyg_int32 inbuffer_len, content_len;
// Packet status.
//
// bit Description
// -------------------------------------------------------------------------
// 0 A 1 means that the connection will be closed after the request
// has been served (i.e. Connection: close" will appear in
// the header. Otherwise the connection will be kept alive
// "Connection: keep-alive"
// 1 Set when the transfer will be chunked
// 2 Set when the we need to send only the header
// 3 Set when the we do not want this document to be cached (i.e.
// "Cache-Control: no-cache" will appear in the header) which
// is meant for c language callbacks and GCI.
// 4 Set when the the frame we just received contains form data.
// In this case we call the function that parsed the data into
// user-defined form variables.
cyg_uint16 mode;
// Ouptut data.
cyg_uint16 status_code;
char *mime_type;
cyg_int32 payload_len;
char outbuffer[CYG_HTTPD_MAXOUTBUFFER+1];
socket_entry sockets[CYGPKG_NET_MAXSOCKETS];
cyg_int32 fdmax;
// Socket handle.
cyg_int32 client_index;
// Modified-since is always reset to -1 before parsing the headers of a
// request. If the "Modified-Since" element is present in the header then
// we'll copy the value in this variable, otherwise it will remain to -1.
// This will tell us if we can send a CYG_HTTPD_STATUS_NOT_MODIFIED back to
// the client or instead we'll have to send the whole page again.
time_t modified_since;
time_t last_modified;
#ifdef CYGOPT_NET_ATHTTPD_USE_CGIBIN_TCL
Jim_Interp *jim_interp;
#endif
// Pointer to the data immediately following the last byte of the header.
// In a POST request, this is where the goods are. After the post request
// is handles it will point to the start of the new request, if any.
char *request_end;
// This pointer points to the buffer where we collected all the post
// data (it might come in more than one frame) and must be visible to
// handlers and cgi scripts.
char *post_data;
// This pointer points to the information about the domain that needs
// to be authenticated. It is only used by the function that builds the
// header.
cyg_httpd_auth_table_entry *needs_auth;
struct sockaddr_in server_conn;
struct sockaddr_in client_conn;
} CYG_HTTPD_STATE;
extern CYG_HTTPD_STATE httpstate;
extern const char *day_of_week[];
extern const char *month_of_year[];
struct cyg_httpd_mime_table_entry
{
char *extension;
char *mime_string;
} CYG_HAL_TABLE_TYPE;
typedef struct cyg_httpd_mime_table_entry cyg_httpd_mime_table_entry;
#define CYG_HTTPD_MIME_TABLE_ENTRY(__name, __pattern, __arg) \
cyg_httpd_mime_table_entry __name CYG_HAL_TABLE_ENTRY(httpd_mime_table) = \
{ __pattern, __arg }
extern cyg_int32 debug_print;
void cyg_httpd_set_home_page(cyg_int8*);
char* cyg_httpd_find_mime_string(char*);
cyg_int32 cyg_httpd_initialize(void);
void cyg_httpd_cleanup_filename(char*);
char* cyg_httpd_parse_GET(char*);
char* cyg_httpd_parse_POST(char*);
void cyg_httpd_handle_method_GET(void);
void cyg_httpd_handle_method_HEAD(void);
void cyg_httpd_process_method(void);
void cyg_httpd_send_file(char*);
void cyg_httpd_send_error(cyg_int32);
cyg_int32 cyg_httpd_format_header(void);
#endif
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