149 lines
4.7 KiB
C
149 lines
4.7 KiB
C
/*
|
|
* Copyright (c) 2013, Institute for Pervasive Computing, ETH Zurich
|
|
* 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. Neither the name of the Institute nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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 Contiki operating system.
|
|
*/
|
|
|
|
/**
|
|
* \file
|
|
* rgb resource
|
|
* \author
|
|
* Harald Pichler <harald@the-develop.net>
|
|
*/
|
|
|
|
#include "contiki.h"
|
|
#include <string.h>
|
|
#include "rest-engine.h"
|
|
#include "generic_resource.h"
|
|
#include "Arduino.h"
|
|
#include "sketch.h"
|
|
|
|
extern uint8_t color_rgb [3];
|
|
|
|
static void res_get_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset);
|
|
static void res_post_put_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset);
|
|
|
|
/* A simple getter example. Returns the reading from the sensor with a simple etag */
|
|
RESOURCE(res_rgb,
|
|
"title=\"LED: , POST/PUT r=10&g=11&b=12\";rt=\"Control\"",
|
|
res_get_handler,
|
|
res_post_put_handler,
|
|
res_post_put_handler,
|
|
NULL);
|
|
|
|
static void
|
|
res_get_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
|
|
{
|
|
unsigned int accept = -1;
|
|
REST.get_header_accept(request, &accept);
|
|
|
|
if(accept == -1 || accept == REST.type.TEXT_PLAIN) {
|
|
REST.set_header_content_type(response, REST.type.TEXT_PLAIN);
|
|
snprintf((char *)buffer, REST_MAX_CHUNK_SIZE, "r=%d&g=%d&b=%d",color_rgb [0],color_rgb [1],color_rgb [2] );
|
|
|
|
REST.set_response_payload(response, buffer, strlen((char *)buffer));
|
|
} else if(accept == REST.type.APPLICATION_JSON) {
|
|
REST.set_header_content_type(response, REST.type.APPLICATION_JSON);
|
|
snprintf((char *)buffer, REST_MAX_CHUNK_SIZE, "{'r':%d\n,'g':%d\n,'b':%d}",color_rgb [0],color_rgb [1],color_rgb [2]);
|
|
|
|
REST.set_response_payload(response, buffer, strlen((char *)buffer));
|
|
} else {
|
|
REST.set_response_status(response, REST.status.NOT_ACCEPTABLE);
|
|
const char *msg = "Supporting content-types text/plain and application/json";
|
|
REST.set_response_payload(response, msg, strlen(msg));
|
|
}
|
|
}
|
|
|
|
static void
|
|
res_post_put_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
|
|
{
|
|
size_t len = 0;
|
|
const char *valr = NULL;
|
|
const char *valg = NULL;
|
|
const char *valb = NULL;
|
|
int success = 1;
|
|
|
|
if(success && (len = REST.get_post_variable(request, "r", &valr))) {
|
|
if(len != 0) {
|
|
// printf("r= %s;",valr);
|
|
} else {
|
|
success = 0;
|
|
}
|
|
if(success && (len = REST.get_post_variable(request, "g", &valg))) {
|
|
if(len != 0) {
|
|
// printf("g= %s;",valg);
|
|
} else {
|
|
success = 0;
|
|
}
|
|
}
|
|
if(success && (len = REST.get_post_variable(request, "b", &valb))) {
|
|
if(len != 0) {
|
|
// printf("b= %s;\n",valb);
|
|
} else {
|
|
success = 0;
|
|
}
|
|
}
|
|
if((success) && !color_rgb_from_string (valr, valg, valb)) {
|
|
|
|
}
|
|
} else {
|
|
success = 0;
|
|
} if(!success) {
|
|
REST.set_response_status(response, REST.status.BAD_REQUEST);
|
|
}
|
|
}
|
|
|
|
#pragma GCC diagnostic ignored "-Wwrite-strings"
|
|
GENERIC_RESOURCE
|
|
( red
|
|
, RED_LED
|
|
, s
|
|
, 1
|
|
, color_from_string
|
|
, color_to_string
|
|
);
|
|
|
|
GENERIC_RESOURCE
|
|
( green
|
|
, GREEN_LED
|
|
, s
|
|
, 1
|
|
, color_from_string
|
|
, color_to_string
|
|
);
|
|
|
|
GENERIC_RESOURCE
|
|
( blue
|
|
, BLUE_LED
|
|
, s
|
|
, 1
|
|
, color_from_string
|
|
, color_to_string
|
|
);
|
|
#pragma GCC diagnostic pop
|