390 lines
13 KiB
C
390 lines
13 KiB
C
/*
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* Copyright (c) 2011, Matthias Kovatsch and other contributors.
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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. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR 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, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*/
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/**
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* \file
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* Erbium (Er) PIR REST Engine example (with CoAP-specific code)
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* \author
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* Matthias Kovatsch <kovatsch@inf.ethz.ch>
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* Harald Pichler <harald@the-develop.net>
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "contiki.h"
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#include "contiki-net.h"
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#include "er-coap.h"
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/* Define which resources to include to meet memory constraints. */
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#define REST_RES_INFO 1
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#define REST_RES_RELAY 1
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#define REST_RES_LEDS 1
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#define REST_RES_BATTERY 1
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#if defined (PLATFORM_HAS_BUTTON)
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#include "dev/button-sensor.h"
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#endif
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#if defined (PLATFORM_HAS_LEDS)
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#include "dev/leds.h"
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#endif
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#if defined (PLATFORM_HAS_RELAY)
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#include "dev/relay-sensor.h"
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#endif
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#if defined (PLATFORM_HAS_BATTERY)
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#include "dev/battery-sensor.h"
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#endif
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#define DEBUG 0
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#if DEBUG
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#define PRINTF(...) printf(__VA_ARGS__)
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#define PRINT6ADDR(addr) PRINTF("[%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x]", ((uint8_t *)addr)[0], ((uint8_t *)addr)[1], ((uint8_t *)addr)[2], ((uint8_t *)addr)[3], ((uint8_t *)addr)[4], ((uint8_t *)addr)[5], ((uint8_t *)addr)[6], ((uint8_t *)addr)[7], ((uint8_t *)addr)[8], ((uint8_t *)addr)[9], ((uint8_t *)addr)[10], ((uint8_t *)addr)[11], ((uint8_t *)addr)[12], ((uint8_t *)addr)[13], ((uint8_t *)addr)[14], ((uint8_t *)addr)[15])
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#define PRINTLLADDR(lladdr) PRINTF("[%02x:%02x:%02x:%02x:%02x:%02x]",(lladdr)->addr[0], (lladdr)->addr[1], (lladdr)->addr[2], (lladdr)->addr[3],(lladdr)->addr[4], (lladdr)->addr[5])
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#else
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#define PRINTF(...)
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#define PRINT6ADDR(addr)
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#define PRINTLLADDR(addr)
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#endif
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/******************************************************************************/
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#if REST_RES_INFO
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/*
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* A handler function named [resource name]_handler must be implemented for each RESOURCE.
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* A buffer for the response payload is provided through the buffer pointer. Simple resources can ignore
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* preferred_size and offset, but must respect the REST_MAX_CHUNK_SIZE limit for the buffer.
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* If a smaller block size is requested for CoAP, the REST framework automatically splits the data.
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*/
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void
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info_get_handler(void* request, void* response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
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{
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char message[100];
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int index = 0;
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int length = 0; /* |<-------->| */
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/* Some data that has the length up to REST_MAX_CHUNK_SIZE. For more, see the chunk resource. */
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// jSON Format
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index += sprintf(message + index,"{\n \"Version\" : \"V1.0pre0\",\n");
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index += sprintf(message + index," \"name\" : \"Powerbox\"\n");
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index += sprintf(message + index,"}\n");
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length = strlen(message);
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memcpy(buffer, message,length );
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REST.set_header_content_type(response, REST.type.APPLICATION_JSON);
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REST.set_response_payload(response, buffer, length);
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}
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/*
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* Resources are defined by the RESOURCE macro.
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* Signature: resource name, the RESTful methods it handles, and its URI path (omitting the leading slash).
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*/
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RESOURCE(res_info, "title=\"Info\";rt=\"text\"", info_get_handler, NULL, NULL, NULL);
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#endif
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/******************************************************************************/
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#if defined (PLATFORM_HAS_RELAY)
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/******************************************************************************/
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#if REST_RES_RELAY
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void
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relay_handler(void* request, void* response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
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{
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const char *type = NULL;
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const char *mode = NULL;
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static char name1[10]="R1";
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static char name2[10]="R2";
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static char name3[10]="R3";
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static char name4[10]="R4";
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char temp[100];
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int index = 0;
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size_t len = 0;
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int relay = 0;
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int success = 1;
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switch(REST.get_method_type(request)){
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case METHOD_GET:
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// jSON Format
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index += sprintf(temp + index,"{\n \"%s\" : ",name1);
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if(relay_sensor.value(RELAY_SENSOR_1) == 0)
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index += sprintf(temp + index,"\"off\",\n");
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if(relay_sensor.value(RELAY_SENSOR_1) == 1)
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index += sprintf(temp + index,"\"on\",\n");
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index += sprintf(temp + index," \"%s\" : ",name2);
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if(relay_sensor.value(RELAY_SENSOR_2) == 0)
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index += sprintf(temp + index,"\"off\",\n");
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if(relay_sensor.value(RELAY_SENSOR_2) == 1)
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index += sprintf(temp + index,"\"on\",\n");
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index += sprintf(temp + index," \"%s\" : ",name3);
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if(relay_sensor.value(RELAY_SENSOR_3) == 0)
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index += sprintf(temp + index,"\"off\",\n");
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if(relay_sensor.value(RELAY_SENSOR_3) == 1)
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index += sprintf(temp + index,"\"on\",\n");
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index += sprintf(temp + index," \"%s\" : ",name4);
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if(relay_sensor.value(RELAY_SENSOR_4) == 0)
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index += sprintf(temp + index,"\"off\"\n");
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if(relay_sensor.value(RELAY_SENSOR_4) == 1)
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index += sprintf(temp + index,"\"on\"\n");
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index += sprintf(temp + index,"}\n");
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len = strlen(temp);
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memcpy(buffer, temp,len );
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REST.set_header_content_type(response, REST.type.APPLICATION_JSON);
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REST.set_response_payload(response, buffer, len);
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break;
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case METHOD_POST:
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if ((len=REST.get_query_variable(request, "type", &type))) {
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PRINTF("type %.*s\n", len, type);
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if (strncmp(type, "1", len)==0) {
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relay = RELAY_SENSOR_1;
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} else if(strncmp(type,"2", len)==0) {
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relay = RELAY_SENSOR_2;
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} else if(strncmp(type,"3", len)==0) {
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relay = RELAY_SENSOR_3;
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} else if(strncmp(type,"4", len)==0) {
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relay = RELAY_SENSOR_4;
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} else {
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success = 0;
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}
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} else {
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success = 0;
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}
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if (success && (len=REST.get_post_variable(request, "mode", &mode))) {
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PRINTF("mode %s\n", mode);
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if (strncmp(mode, "on", len)==0) {
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relay_sensor.configure(relay,1);
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} else if (strncmp(mode, "off", len)==0) {
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relay_sensor.configure(relay,0);
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} else {
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success = 0;
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}
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} else {
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success = 0;
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}
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break;
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default:
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success = 0;
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}
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if (!success) {
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REST.set_response_status(response, REST.status.BAD_REQUEST);
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}
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}
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/*A simple actuator example*/
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RESOURCE(res_relay, "title=\"RELAY: ?type=1|2|3|4, POST/PUT, POST/PUT mode=on|off\";rt=\"Control\"", relay_handler, NULL, relay_handler, NULL);
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#endif
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/******************************************************************************/
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#endif /* PLATFORM_HAS_RELAY */
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/******************************************************************************/
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#if defined (PLATFORM_HAS_LEDS)
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/******************************************************************************/
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#if REST_RES_LEDS
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void
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leds_handler(void* request, void* response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
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{
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size_t len = 0;
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const char *color = NULL;
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const char *mode = NULL;
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uint8_t led = 0;
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int success = 1;
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if ((len=REST.get_query_variable(request, "color", &color))) {
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PRINTF("color %.*s\n", len, color);
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if (strncmp(color, "r", len)==0) {
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led = LEDS_RED;
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} else if(strncmp(color,"g", len)==0) {
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led = LEDS_GREEN;
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} else if (strncmp(color,"b", len)==0) {
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led = LEDS_BLUE;
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} else {
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success = 0;
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}
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} else {
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success = 0;
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}
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if (success && (len=REST.get_post_variable(request, "mode", &mode))) {
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PRINTF("mode %s\n", mode);
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if (strncmp(mode, "on", len)==0) {
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leds_on(led);
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} else if (strncmp(mode, "off", len)==0) {
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leds_off(led);
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} else {
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success = 0;
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}
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} else {
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success = 0;
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}
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if (!success) {
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REST.set_response_status(response, REST.status.BAD_REQUEST);
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}
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}
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/*A simple actuator example, depending on the color query parameter and post variable mode, corresponding led is activated or deactivated*/
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RESOURCE(res_leds, "title=\"LEDs: ?color=r|g|b, POST/PUT mode=on|off\";rt=\"Control\"", NULL, leds_handler, leds_handler, NULL);
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#endif
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#endif /* PLATFORM_HAS_LEDS */
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/******************************************************************************/
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/******************************************************************************/
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#if REST_RES_TEMPERATURE && defined (PLATFORM_HAS_TEMPERATURE)
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/* A simple getter example. Returns the reading from light sensor with a simple etag */
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void
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temperature_handler(void* request, void* response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
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{
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int temperature = temperature_sensor.value(0);
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const uint16_t *accept = NULL;
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int num = REST.get_header_accept(request, &accept);
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if ((num==0) || (num && accept[0]==REST.type.TEXT_PLAIN))
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{
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REST.set_header_content_type(response, REST.type.TEXT_PLAIN);
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snprintf((char *)buffer, REST_MAX_CHUNK_SIZE, "%d", temperature);
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REST.set_response_payload(response, (uint8_t *)buffer, strlen((char *)buffer));
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}
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else if (num && (accept[0]==REST.type.APPLICATION_JSON))
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{
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REST.set_header_content_type(response, REST.type.APPLICATION_JSON);
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snprintf((char *)buffer, REST_MAX_CHUNK_SIZE, "{'temperature':%d}", temperature);
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REST.set_response_payload(response, buffer, strlen((char *)buffer));
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}
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else
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{
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REST.set_response_status(response, REST.status.NOT_ACCEPTABLE);
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const char *msg = "Supporting content-types text/plain and application/json";
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REST.set_response_payload(response, msg, strlen(msg));
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}
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}
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RESOURCE(res_temperature, "title=\"Temperature status\";rt=\"temperature-c\"", temperature_handler, NULL, NULL, NULL);
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#endif /* PLATFORM_HAS_TEMPERATURE */
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/******************************************************************************/
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#if REST_RES_BATTERY && defined (PLATFORM_HAS_BATTERY)
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/* A simple getter example. Returns the reading from light sensor with a simple etag */
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void
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battery_handler(void* request, void* response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
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{
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int battery = battery_sensor.value(0);
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unsigned int accept = -1;
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REST.get_header_accept(request, &accept);
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if(accept == -1 || accept == REST.type.TEXT_PLAIN) {
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REST.set_header_content_type(response, REST.type.TEXT_PLAIN);
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snprintf((char *)buffer, REST_MAX_CHUNK_SIZE, "%d", battery);
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REST.set_response_payload(response, (uint8_t *)buffer, strlen((char *)buffer));
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}
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else if(accept == REST.type.APPLICATION_JSON) {
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REST.set_header_content_type(response, REST.type.APPLICATION_JSON);
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snprintf((char *)buffer, REST_MAX_CHUNK_SIZE, "{'battery':%d}", battery);
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REST.set_response_payload(response, buffer, strlen((char *)buffer));
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}
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else
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{
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REST.set_response_status(response, REST.status.NOT_ACCEPTABLE);
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const char *msg = "Supporting content-types text/plain and application/json";
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REST.set_response_payload(response, msg, strlen(msg));
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}
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}
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RESOURCE(res_battery, "title=\"Battery status\";rt=\"battery-mV\"", battery_handler, NULL, NULL, NULL);
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#endif /* PLATFORM_HAS_BATTERY */
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/******************************************************************************/
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void
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hw_init()
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{
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#if defined (PLATFORM_HAS_LEDS)
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leds_off(LEDS_RED);
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#endif
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}
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PROCESS(rest_server_example, "Erbium Example Server");
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AUTOSTART_PROCESSES(&rest_server_example, &sensors_process);
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PROCESS_THREAD(rest_server_example, ev, data)
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{
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PROCESS_BEGIN();
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PRINTF("Starting Erbium Example Server\n");
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PRINTF("uIP buffer: %u\n", UIP_BUFSIZE);
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PRINTF("LL header: %u\n", UIP_LLH_LEN);
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PRINTF("IP+UDP header: %u\n", UIP_IPUDPH_LEN);
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PRINTF("REST max chunk: %u\n", REST_MAX_CHUNK_SIZE);
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/* Initialize the OSD Hardware. */
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hw_init();
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/* Initialize the REST engine. */
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rest_init_engine();
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NETSTACK_MAC.off(1);
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/* Activate the application-specific resources. */
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#if REST_RES_INFO
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rest_activate_resource(&res_info, "info");
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#endif
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/* Activate the application-specific resources. */
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#if REST_RES_RELAY
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SENSORS_ACTIVATE(relay_sensor);
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rest_activate_resource(&res_relay, "a/relay");
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#endif
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#if defined (PLATFORM_HAS_LEDS)
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#if REST_RES_LEDS
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rest_activate_resource(&res_leds, "a/leds");
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#endif
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#endif /* PLATFORM_HAS_LEDS */
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#if defined (PLATFORM_HAS_BATTERY) && REST_RES_BATTERY
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SENSORS_ACTIVATE(battery_sensor);
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rest_activate_resource(&res_battery, "s/battery");
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#endif
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/* Define application-specific events here. */
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while(1) {
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PROCESS_WAIT_EVENT();
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} /* while (1) */
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PROCESS_END();
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}
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