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