139 lines
4.8 KiB
C
139 lines
4.8 KiB
C
/*
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* Copyright (c) 2016, Zolertia - http://www.zolertia.com
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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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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*---------------------------------------------------------------------------*/
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#include "contiki-net.h"
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#include "http-socket.h"
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#include "ip64-addr.h"
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#include "dev/leds.h"
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#include "rpl.h"
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#include <stdio.h>
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/*---------------------------------------------------------------------------*/
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static struct http_socket s;
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static char data_received[HTTP_CLIENT_BUFFER_LEN];
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static int bytes_received = 0;
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static int restarts;
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static struct ctimer reconnect_timer;
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static const char *url = "http://httpbin.org/ip";
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/*---------------------------------------------------------------------------*/
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static void callback(struct http_socket *s, void *ptr,
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http_socket_event_t e,
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const uint8_t *data, uint16_t datalen);
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/*---------------------------------------------------------------------------*/
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PROCESS(http_example_process, "HTTP Example");
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AUTOSTART_PROCESSES(&http_example_process);
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/*---------------------------------------------------------------------------*/
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static void
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reconnect(void *dummy)
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{
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rpl_set_mode(RPL_MODE_MESH);
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http_socket_get(&s, url, 0, 0, callback, NULL);
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}
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/*---------------------------------------------------------------------------*/
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static void
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restart(void)
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{
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int scale;
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restarts++;
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printf("Number of restarts %d\n", restarts);
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scale = restarts;
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if(scale > 5) {
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scale = 5;
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}
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ctimer_set(&reconnect_timer, random_rand() % ((CLOCK_SECOND * 10) << scale),
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reconnect, NULL);
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}
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/*---------------------------------------------------------------------------*/
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static void
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callback(struct http_socket *s, void *ptr,
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http_socket_event_t e,
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const uint8_t *data, uint16_t datalen)
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{
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uint8_t i;
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if(e == HTTP_SOCKET_ERR) {
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printf("HTTP socket error\n");
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} else if(e == HTTP_SOCKET_TIMEDOUT) {
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printf("HTTP socket error: timed out\n");
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restart();
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} else if(e == HTTP_SOCKET_ABORTED) {
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printf("HTTP socket error: aborted\n");
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restart();
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} else if(e == HTTP_SOCKET_HOSTNAME_NOT_FOUND) {
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printf("HTTP socket error: hostname not found\n");
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restart();
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} else if(e == HTTP_SOCKET_CLOSED) {
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if(bytes_received) {
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printf("HTTP socket received data:\n\n");
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for(i=0; i<bytes_received; i++) {
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printf("%c", data_received[i]);
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}
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printf("\n");
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bytes_received = 0;
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}
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} else if(e == HTTP_SOCKET_DATA) {
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strcat(data_received, (const char *)data);
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bytes_received += datalen;
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printf("HTTP socket received %d bytes of data\n", datalen);
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}
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}
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(http_example_process, ev, data)
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{
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static struct etimer et;
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uip_ip4addr_t ip4addr;
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uip_ip6addr_t ip6addr;
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PROCESS_BEGIN();
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uip_ipaddr(&ip4addr, 8, 8, 8, 8);
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ip64_addr_4to6(&ip4addr, &ip6addr);
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uip_nameserver_update(&ip6addr, UIP_NAMESERVER_INFINITE_LIFETIME);
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etimer_set(&et, CLOCK_SECOND * 20);
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PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
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http_socket_init(&s);
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http_socket_get(&s, url, 0, 0, callback, NULL);
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leds_on(LEDS_RED);
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restarts = 0;
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etimer_set(&et, CLOCK_SECOND);
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while(1) {
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PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
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etimer_reset(&et);
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}
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PROCESS_END();
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}
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/*---------------------------------------------------------------------------*/
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