129 lines
4.9 KiB
C
129 lines
4.9 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
|
|
* ETSI Plugtest resource
|
|
* \author
|
|
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
|
|
*/
|
|
|
|
#include <string.h>
|
|
#include "sys/cc.h"
|
|
#include "rest-engine.h"
|
|
#include "coap.h"
|
|
#include "plugtest.h"
|
|
|
|
static void res_get_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset);
|
|
static void res_put_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset);
|
|
|
|
RESOURCE(
|
|
res_plugtest_large_update,
|
|
"title=\"Large resource that can be updated using PUT method\";rt=\"block\";sz=\"" TO_STRING(MAX_PLUGFEST_BODY) "\"",
|
|
res_get_handler,
|
|
NULL,
|
|
res_put_handler,
|
|
NULL);
|
|
|
|
static int32_t large_update_size = 0;
|
|
static uint8_t large_update_store[MAX_PLUGFEST_BODY] = { 0 };
|
|
static unsigned int large_update_ct = APPLICATION_OCTET_STREAM;
|
|
|
|
static void
|
|
res_get_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
|
|
{
|
|
/* Check the offset for boundaries of the resource data. */
|
|
if(*offset >= large_update_size) {
|
|
REST.set_response_status(response, REST.status.BAD_OPTION);
|
|
/* A block error message should not exceed the minimum block size (16). */
|
|
|
|
const char *error_msg = "BlockOutOfScope";
|
|
REST.set_response_payload(response, error_msg, strlen(error_msg));
|
|
return;
|
|
}
|
|
|
|
REST.set_response_payload(response, large_update_store + *offset,
|
|
MIN(large_update_size - *offset, preferred_size));
|
|
REST.set_header_content_type(response, large_update_ct);
|
|
|
|
/* IMPORTANT for chunk-wise resources: Signal chunk awareness to REST engine. */
|
|
*offset += preferred_size;
|
|
|
|
/* Signal end of resource representation. */
|
|
if(*offset >= large_update_size) {
|
|
*offset = -1;
|
|
}
|
|
}
|
|
static void
|
|
res_put_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
|
|
{
|
|
coap_packet_t *const coap_req = (coap_packet_t *)request;
|
|
uint8_t *incoming = NULL;
|
|
size_t len = 0;
|
|
|
|
unsigned int ct = -1;
|
|
|
|
if(!REST.get_header_content_type(request, &ct)) {
|
|
REST.set_response_status(response, REST.status.BAD_REQUEST);
|
|
const char *error_msg = "NoContentType";
|
|
REST.set_response_payload(response, error_msg, strlen(error_msg));
|
|
return;
|
|
}
|
|
|
|
if((len = REST.get_request_payload(request, (const uint8_t **)&incoming))) {
|
|
if(coap_req->block1_num * coap_req->block1_size + len <= sizeof(large_update_store)) {
|
|
memcpy(
|
|
large_update_store + coap_req->block1_num * coap_req->block1_size,
|
|
incoming, len);
|
|
large_update_size = coap_req->block1_num * coap_req->block1_size + len;
|
|
large_update_ct = ct;
|
|
|
|
REST.set_response_status(response, REST.status.CHANGED);
|
|
coap_set_header_block1(response, coap_req->block1_num, 0,
|
|
coap_req->block1_size);
|
|
} else {
|
|
REST.set_response_status(response,
|
|
REST.status.REQUEST_ENTITY_TOO_LARGE);
|
|
REST.set_response_payload(
|
|
response,
|
|
buffer,
|
|
snprintf((char *)buffer, MAX_PLUGFEST_PAYLOAD, "%uB max.",
|
|
sizeof(large_update_store)));
|
|
return;
|
|
}
|
|
} else {
|
|
REST.set_response_status(response, REST.status.BAD_REQUEST);
|
|
const char *error_msg = "NoPayload";
|
|
REST.set_response_payload(response, error_msg, strlen(error_msg));
|
|
return;
|
|
}
|
|
}
|