231 lines
6.8 KiB
C
231 lines
6.8 KiB
C
/*
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* Copyright (c) 2001, 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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* $Id: ajax-cgi.c,v 1.2 2008/11/06 08:24:20 adamdunkels Exp $
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*
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*/
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/*
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* This file includes functions that are called by the web server
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* scripts. The functions takes no argument, and the return value is
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* interpreted as follows. A zero means that the function did not
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* complete and should be invoked for the next packet as well. A
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* non-zero value indicates that the function has completed and that
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* the web server should move along to the next script line.
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*
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*/
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#include <stdio.h>
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#include <string.h>
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#include "contiki-net.h"
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#include "httpd.h"
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#include "httpd-cgi.h"
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#include "httpd-fs.h"
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#include "lib/petsciiconv.h"
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static struct httpd_cgi_call *calls = NULL;
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/*---------------------------------------------------------------------------*/
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static
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PT_THREAD(nullfunction(struct httpd_state *s, char *ptr))
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{
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PSOCK_BEGIN(&s->sout);
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PSOCK_END(&s->sout);
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}
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/*---------------------------------------------------------------------------*/
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httpd_cgifunction
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httpd_cgi(char *name)
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{
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struct httpd_cgi_call *f;
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/* Find the matching name in the table, return the function. */
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for(f = calls; f != NULL; f = f->next) {
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if(strncmp(f->name, name, strlen(f->name)) == 0) {
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return f->function;
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}
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}
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return nullfunction;
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}
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/*---------------------------------------------------------------------------*/
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static
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PT_THREAD(nodeidcall(struct httpd_state *s, char *ptr))
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{
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static char buf[10];
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PSOCK_BEGIN(&s->sout);
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snprintf(buf, sizeof(buf), "%d.%d",
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rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1]);
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PSOCK_SEND_STR(&s->sout, buf);
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PSOCK_END(&s->sout);
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}
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/*---------------------------------------------------------------------------*/
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void
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httpd_cgi_add(struct httpd_cgi_call *c)
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{
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struct httpd_cgi_call *l;
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c->next = NULL;
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if(calls == NULL) {
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calls = c;
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} else {
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for(l = calls; l->next != NULL; l = l->next);
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l->next = c;
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}
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}
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/*---------------------------------------------------------------------------*/
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#include "dev/sht11.h"
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#include "dev/light.h"
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static
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PT_THREAD(sensorscall(struct httpd_state *s, char *ptr))
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{
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static struct timer t;
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static int i;
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static char buf[100];
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static unsigned long last_cpu, last_lpm, last_listen, last_transmit;
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PSOCK_BEGIN(&s->sout);
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timer_set(&t, CLOCK_SECOND);
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i = 0;
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while(1) {
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timer_restart(&t);
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PSOCK_WAIT_UNTIL(&s->sout, timer_expired(&t));
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snprintf(buf, sizeof(buf),
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"<script type='text/javascript'>t(%d);h(%d);l1(%d);l2(%d);</script>",
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sht11_temp(),
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sht11_humidity(),
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sensors_light1(),
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sensors_light2());
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PSOCK_SEND_STR(&s->sout, buf);
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timer_restart(&t);
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PSOCK_WAIT_UNTIL(&s->sout, timer_expired(&t));
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snprintf(buf, sizeof(buf),
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"<script type='text/javascript'>p(%lu,%lu,%lu,%lu);i(%d);</script>",
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energest_type_time(ENERGEST_TYPE_CPU) - last_cpu,
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energest_type_time(ENERGEST_TYPE_LPM) - last_lpm,
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energest_type_time(ENERGEST_TYPE_TRANSMIT) - last_transmit,
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energest_type_time(ENERGEST_TYPE_LISTEN) - last_listen,
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i++);
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last_cpu = energest_type_time(ENERGEST_TYPE_CPU);
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last_lpm = energest_type_time(ENERGEST_TYPE_LPM);
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last_transmit = energest_type_time(ENERGEST_TYPE_TRANSMIT);
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last_listen = energest_type_time(ENERGEST_TYPE_LISTEN);
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PSOCK_SEND_STR(&s->sout, buf);
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}
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PSOCK_END(&s->sout);
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}
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/*---------------------------------------------------------------------------*/
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static unsigned short
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make_neighbor(void *arg)
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{
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struct httpd_state *s = (struct httpd_state *)arg;
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struct neighbor *n = neighbor_get(s->u.count);
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if(n == NULL) {
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return 0;
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}
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return snprintf((char *)uip_appdata, uip_mss(),
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"<li><a href=\"http://172.16.%d.%d/\">%d.%d</a>\r\n",
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n->addr.u8[0], n->addr.u8[1],
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n->addr.u8[0], n->addr.u8[1]);
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}
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/*---------------------------------------------------------------------------*/
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static
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PT_THREAD(neighborscall(struct httpd_state *s, char *ptr))
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{
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PSOCK_BEGIN(&s->sout);
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/* printf("neighbor_num %d\n", neighbor_num());*/
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for(s->u.count = 0; s->u.count < neighbor_num(); s->u.count++) {
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/* printf("count %d\n", s->u.count);*/
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if(neighbor_get(s->u.count) != NULL) {
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/* printf("!= NULL\n");*/
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PSOCK_GENERATOR_SEND(&s->sout, make_neighbor, s);
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}
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}
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PSOCK_END(&s->sout);
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}
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/*---------------------------------------------------------------------------*/
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static void
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adv_received(struct neighbor_discovery_conn *c, rimeaddr_t *from,
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uint16_t rtmetric)
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{
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struct neighbor *n;
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/* printf("adv_received %d.%d\n", from->u8[0], from->u8[1]);*/
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n = neighbor_find(from);
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if(n == NULL) {
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neighbor_add(from, rtmetric, 1);
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} else {
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neighbor_update(n, rtmetric);
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}
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}
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static const struct neighbor_discovery_callbacks neighbor_discovery_callbacks =
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{ adv_received, NULL};
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HTTPD_CGI_CALL(sensors, "sensors", sensorscall);
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HTTPD_CGI_CALL(nodeid, "nodeid", nodeidcall);
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HTTPD_CGI_CALL(neighbors, "neighbors", neighborscall);
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static struct neighbor_discovery_conn conn;
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void
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httpd_cgi_init(void)
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{
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httpd_cgi_add(&sensors);
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httpd_cgi_add(&nodeid);
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httpd_cgi_add(&neighbors);
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neighbor_discovery_open(&conn, 31,
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CLOCK_SECOND * 4,
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CLOCK_SECOND * 20,
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CLOCK_SECOND * 60,
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&neighbor_discovery_callbacks);
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neighbor_discovery_start(&conn, 0);
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}
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/*---------------------------------------------------------------------------*/
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