nes-proj/apps/webserver-nano/httpd.h

332 lines
13 KiB
C

/*
* Copyright (c) 2001-2005, Adam Dunkels.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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.
*
* This file is part of the uIP TCP/IP stack.
*
*
*/
#ifndef HTTPD_H_
#define HTTPD_H_
/*
* The default number of simultaneous server connections is 4. Multiple connections can be triggered
* by requests for embedded images, style sheets, icons, etc. and a TCP RESET is issued when no more
* connections are available.
* The Firefox default connections per server is 15. It can be reduced to 1 in about:config and generally
* will improve throughput in the half-duplex 6LoWPAN link as embedded files will be requested sequentially.
* Tictactoe is a good test for multiple connections; it can use as many as 9, but should also work when
* Firefox network.http.max-connections-per-server is set to a lower number.
* The RAM needed for each entry depends on script enabling and buffer sizes; see struct httpd_state below.
* Typical range is 100 - 200 bytes per connection
* cgi's that use PSOCK_GENERATOR_SEND will have truncated output if UIP_CONF_RECEIVE_WINDOW and UIP_CONF_TCP_MSS
* are not large enough. The header-menu cgi needs ~340 bytes if all options are enabled, while the file-stats * cgi
* can exceed any MSS if there are enough files to display (e.g. tic-tac-toe).
* The advertised MSS is easily seen in wireshark.
* Some example set a small MSS by default. rpl-border-router for example uses a receive window of 60.
*/
/* Titles of web pages served with the !header cgi can be configured to show characteristics of the node.
* For example "CD1A:3456" to show the node id and clock time of last access.
* Change this line and rebuild to make indentifiable instances.
* Undefine to reduce program size, giving "Contiki-Nano" title on all pages.
* WAD indexes into the uip destaddr field, which contains the address that we responded to.
*/
#define WEBSERVER_CONF_PAGETITLE sprintf(buf,"[%02x%02x]",WAD[14],WAD[15]);
//#define WEBSERVER_CONF_PAGETITLE sprintf(buf,"Nano[%02x%02x%02x]",WAD[13],WAD[14],WAD[15]);
//#define WEBSERVER_CONF_PAGETITLE sprintf(buf,"Nano[%02x%02x...%02x%02x]",WAD[0],WAD[1],WAD[14],WAD[15]);
//#define WEBSERVER_CONF_PAGETITLE sprintf(buf,"%2x%02x...%2x%02x [%lu]",WAD[0],WAD[1],WAD[14],WAD[15],clock_seconds());
#ifndef WEBSERVER_CONF_NANO
#if CONTIKI_TARGET_SKY || CONTIKI_TARGET_STK500
#define WEBSERVER_CONF_NANO 1
#elif CONTIKI_TARGET_REDBEE_ECONOTAG || CONTIKI_TARGET_AVR_RAVEN || CONTIKI_TARGET_AVR_ATMEGA128RFA1
#define WEBSERVER_CONF_NANO 2
#else
#define WEBSERVER_CONF_NANO 3
#endif
#endif
#if WEBSERVER_CONF_NANO==1
/* nano-size for constrained MCUs */
#define WEBSERVER_CONF_CONNS 2
#define WEBSERVER_CONF_NAMESIZE 16
#define WEBSERVER_CONF_BUFSIZE 40
/* Short tcp timeouts allow new connections sooner */
#define WEBSERVER_CONF_TIMEOUT 20
/* Allow include in .shtml pages, e.g. %!: /header.html */
#define WEBSERVER_CONF_INCLUDE 1
/* Allow cgi in .shtml pages, e.g. %! file-stats . */
#define WEBSERVER_CONF_CGI 1
/* MAX_SCRIPT_NAME_LENGTH should be at least the maximum file name length+2 for %!: includes */
#define MAX_SCRIPT_NAME_LENGTH WEBSERVER_CONF_NAMESIZE+2
/* Enable specific cgi's */
#define WEBSERVER_CONF_HEADER 1
//#define WEBSERVER_CONF_HEADER_W3C 1 //Proper header
#define WEBSERVER_CONF_HEADER_MENU 1 //with links to other pages
//#define WEBSERVER_CONF_HEADER_ICON 1 //with favicon
#define WEBSERVER_CONF_LOADTIME 0 //show load time in filestats
#define WEBSERVER_CONF_FILESTATS 1
#define WEBSERVER_CONF_TCPSTATS 0
#define WEBSERVER_CONF_PROCESSES 0
#define WEBSERVER_CONF_ADDRESSES 1
#define WEBSERVER_CONF_NEIGHBORS 1
#define WEBSERVER_CONF_NEIGHBOR_STATUS 0
#define WEBSERVER_CONF_ROUTES 0
#define WEBSERVER_CONF_ROUTE_LINKS 0
#define WEBSERVER_CONF_SENSORS 0
#define WEBSERVER_CONF_STATISTICS 0
#define WEBSERVER_CONF_TICTACTOE 0 //Needs passquery of at least 10 chars
#define WEBSERVER_CONF_AJAX 0
//#define WEBSERVER_CONF_PASSQUERY 10
#if WEBSERVER_CONF_PASSQUERY
extern char httpd_query[WEBSERVER_CONF_PASSQUERY];
#endif
/* Enable specific file types */
#define WEBSERVER_CONF_JPG 0
#define WEBSERVER_CONF_PNG 0
#define WEBSERVER_CONF_GIF 0
#define WEBSERVER_CONF_TXT 1
#define WEBSERVER_CONF_CSS 0
#define WEBSERVER_CONF_BIN 0
/* Log page accesses */
#define WEBSERVER_CONF_LOG 0
/* Include referrer in log */
#define WEBSERVER_CONF_REFERER 0
/*-----------------------------------------------------------------------------*/
#elif WEBSERVER_CONF_NANO==2
/* webserver-mini having more content */
#define WEBSERVER_CONF_CONNS 2
#define WEBSERVER_CONF_NAMESIZE 20
#define WEBSERVER_CONF_BUFSIZE 40
#define WEBSERVER_CONF_TIMEOUT 20
/* Allow include in .shtml pages, e.g. %!: /header.html */
#define WEBSERVER_CONF_INCLUDE 1
/* Allow cgi in .shtml pages, e.g. %! file-stats . */
#define WEBSERVER_CONF_CGI 1
/* MAX_SCRIPT_NAME_LENGTH should be at least the maximum file name length+2 for %!: includes */
#define MAX_SCRIPT_NAME_LENGTH WEBSERVER_CONF_NAMESIZE+2
/* Enable specific cgi's */
#define WEBSERVER_CONF_HEADER 1
//#define WEBSERVER_CONF_HEADER_W3C 1 //Proper header
#define WEBSERVER_CONF_HEADER_MENU 1 //with links to other pages
//#define WEBSERVER_CONF_HEADER_ICON 1 //with favicon
#define WEBSERVER_CONF_LOADTIME 1
#define WEBSERVER_CONF_FILESTATS 1
#define WEBSERVER_CONF_TCPSTATS 1
#define WEBSERVER_CONF_PROCESSES 1
#define WEBSERVER_CONF_ADDRESSES 1
#define WEBSERVER_CONF_NEIGHBORS 1
#define WEBSERVER_CONF_NEIGHBOR_STATUS 1
#define WEBSERVER_CONF_ROUTES 1
#define WEBSERVER_CONF_ROUTE_LINKS 1
#define WEBSERVER_CONF_SENSORS 1
#define WEBSERVER_CONF_STATISTICS 1
//#define WEBSERVER_CONF_TICTACTOE 1 //Needs passquery of at least 10 chars
#define WEBSERVER_CONF_AJAX 1
#define WEBSERVER_CONF_SHOW_ROOM 0
#define WEBSERVER_CONF_PASSQUERY 10
#if WEBSERVER_CONF_PASSQUERY
extern char httpd_query[WEBSERVER_CONF_PASSQUERY];
#endif
/* Enable specific file types */
#define WEBSERVER_CONF_JPG 0
#define WEBSERVER_CONF_PNG 0
#define WEBSERVER_CONF_GIF 0
#define WEBSERVER_CONF_TXT 1
#define WEBSERVER_CONF_CSS 0
#define WEBSERVER_CONF_BIN 0
/* Log page accesses */
#define WEBSERVER_CONF_LOG 0
/* Include referrer in log */
#define WEBSERVER_CONF_REFERER 1
/*-----------------------------------------------------------------------------*/
#elif WEBSERVER_CONF_NANO==3
/* webserver-mini having all content */
#define WEBSERVER_CONF_CONNS 6
#define WEBSERVER_CONF_NAMESIZE 20
#define WEBSERVER_CONF_BUFSIZE 40
#define WEBSERVER_CONF_TIMEOUT 20
/* Allow include in .shtml pages, e.g. %!: /header.html */
#define WEBSERVER_CONF_INCLUDE 1
/* Allow cgi in .shtml pages, e.g. %! file-stats . */
#define WEBSERVER_CONF_CGI 1
/* MAX_SCRIPT_NAME_LENGTH should be at least the maximum file name length+2 for %!: includes */
#define MAX_SCRIPT_NAME_LENGTH WEBSERVER_CONF_NAMESIZE+2
/* Enable specific cgi's */
#define WEBSERVER_CONF_HEADER 1
//#define WEBSERVER_CONF_HEADER_W3C 1 //Proper header
#define WEBSERVER_CONF_HEADER_MENU 1 //with links to other pages
//#define WEBSERVER_CONF_HEADER_ICON 1 //with favicon
#define WEBSERVER_CONF_LOADTIME 1
#define WEBSERVER_CONF_FILESTATS 1
#define WEBSERVER_CONF_TCPSTATS 1
#define WEBSERVER_CONF_PROCESSES 1
#define WEBSERVER_CONF_ADDRESSES 1
#define WEBSERVER_CONF_NEIGHBORS 1
#define WEBSERVER_CONF_ROUTES 1
#define WEBSERVER_CONF_NEIGHBORS 1
#define WEBSERVER_CONF_NEIGHBOR_STATUS 1
#define WEBSERVER_CONF_ROUTES 1
#define WEBSERVER_CONF_ROUTE_LINKS 1
#define WEBSERVER_CONF_SENSORS 1
#define WEBSERVER_CONF_STATISTICS 1
#define WEBSERVER_CONF_TICTACTOE 1 //Needs passquery of at least 10 chars
#define WEBSERVER_CONF_AJAX 1
#define WEBSERVER_CONF_PASSQUERY 10
#if WEBSERVER_CONF_PASSQUERY
extern char httpd_query[WEBSERVER_CONF_PASSQUERY];
#endif
/* Enable specific file types */
#define WEBSERVER_CONF_JPG 1
#define WEBSERVER_CONF_PNG 1
#define WEBSERVER_CONF_GIF 1
#define WEBSERVER_CONF_TXT 1
#define WEBSERVER_CONF_CSS 1
#define WEBSERVER_CONF_BIN 1
/* Log page accesses */
#define WEBSERVER_CONF_LOG 1
/* Include referrer in log */
#define WEBSERVER_CONF_REFERER 1
#else
#error Specified WEBSERVER_CONF_NANO configuration not supported.
#endif /* WEBSERVER_CONF_NANO */
/* Address printing used by cgi's and logging, but it can be turned off if desired */
#if WEBSERVER_CONF_LOG || WEBSERVER_CONF_ADDRESSES || WEBSERVER_CONF_NEIGHBORS || WEBSERVER_CONF_ROUTES
extern uip_ds6_netif_t uip_ds6_if;
#define WEBSERVER_CONF_PRINTADDR 1
#endif
#if WEBSERVER_CONF_PRINTADDR
uint8_t httpd_cgi_sprint_ip6(uip_ip6addr_t addr, char * result);
#else
#define httpd_cgi_sprint_ip6(...) 0
#endif
#include "contiki-net.h"
#include "httpd-fs.h"
#if defined(__AVR__)
/* When using non-ram storage httpd-fsdata.c must be generated with the HTTPD_STRING_ATTR, eg
* ../../tools/makefsdata -A HTTPD_STRING_ATTR
*/
#include <avr/pgmspace.h>
#define HTTPD_STRING_ATTR PROGMEM
#define PRINTA(FORMAT,args...) printf_P(PSTR(FORMAT),##args)
/* These will fail if the server strings are above 64K in program flash */
#define httpd_memcpy memcpy_P
#define httpd_strcpy strcpy_P
#define httpd_strcmp strcmp_P
#define httpd_strncmp strncmp_P
#define httpd_strlen strlen_P
#define httpd_snprintf snprintf_P
#define httpd_fs_cpy memcpy_P
#define httpd_fs_strcmp strcmp_P
#define httpd_fs_strchr strchr_P
#define httpd_fs_getchar(x) pgm_read_byte(x)
#else /* All storage in RAM */
#define HTTPD_STRING_ATTR
#define PRINTA(FORMAT,args...) printf(FORMAT,##args)
#define httpd_snprintf snprintf
#define httpd_fs_cpy memcpy
#define httpd_memcpy memcpy
#define httpd_strcpy strcpy
#define httpd_strcmp strcmp
#define httpd_strncmp strncmp
#define httpd_strlen strlen
#define httpd_fs_strchr strchr
#define httpd_fs_strcmp strcmp
#define httpd_fs_getchar(c) *(c)
#endif
struct httpd_state {
unsigned char timer;
struct psock sin, sout;
struct pt outputpt;
#if WEBSERVER_CONF_INCLUDE || WEBSERVER_CONF_CGI
struct pt scriptpt;
#endif
char inputbuf[WEBSERVER_CONF_BUFSIZE];
char filename[WEBSERVER_CONF_NAMESIZE];
char state;
struct httpd_fs_file file;
int len;
#if WEBSERVER_CONF_INCLUDE || WEBSERVER_CONF_CGI
char *scriptptr;
int scriptlen;
#endif
#if WEBSERVER_CONF_LOADTIME
clock_time_t pagetime;
#endif
#if WEBSERVER_CONF_AJAX
uint16_t ajax_timeout;
#endif
#if WEBSERVER_CONF_NEIGHBORS || WEBSERVER_CONF_ROUTES
uint8_t starti,savei,startj,savej;
#endif
#if WEBSERVER_CONF_CGI
union {
unsigned short count;
void *ptr;
} u;
#endif
};
void httpd_init(void);
void httpd_appcall(void *state);
/* DEBUGLOGIC is a convenient way to debug without a tcp/ip connection.
* After initialization, break the program and set the program counter
* to the beginning of httpd.c::httpd_appcall:
* s = sg = (struct httpd_state *)memb_alloc(&conns);
* The global sg points to the s data to get around "not in scope" optimization.
* The input file is forced to /index.html and the output directed to TCPBUF.
* However the socket will hang on acknowledgement when any data is sent.
* To prevent this just add a break to /core/net/psock.c::psock_generator_send
* ...
* // Wait until all data is sent and acknowledged.
* break; //<---add this line
* PT_YIELD_UNTIL(&s->psockpt, uip_acked() || uip_rexmit());
* ...
*/
#define DEBUGLOGIC 0
#if DEBUGLOGIC
struct httpd_state *sg;
#define uip_mss(...) 512
#define uip_appdata TCPBUF
char TCPBUF[512];
#endif
#endif /* HTTPD_H_ */