| /* |
| * 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 "rest-engine.h" |
| #include "er-coap.h" |
| #include "er-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_validate, |
| "title=\"Validation test resource\"", |
| res_get_handler, |
| NULL, |
| res_put_handler, |
| NULL); |
| |
| static uint8_t validate_etag[8] = { 0 }; |
| static uint8_t validate_etag_len = 1; |
| static uint8_t validate_change = 1; |
| |
| static const uint8_t *bytes = NULL; |
| static size_t len = 0; |
| |
| static void |
| validate_update_etag() |
| { |
| int i; |
| validate_etag_len = (random_rand() % 8) + 1; |
| for(i = 0; i < validate_etag_len; ++i) { |
| validate_etag[i] = random_rand(); |
| } |
| validate_change = 0; |
| |
| PRINTF("### SERVER ACTION ### Changed ETag %u [0x%02X%02X%02X%02X%02X%02X%02X%02X]\n", |
| validate_etag_len, validate_etag[0], validate_etag[1], validate_etag[2], validate_etag[3], validate_etag[4], validate_etag[5], validate_etag[6], validate_etag[7]); |
| } |
| static void |
| res_get_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; |
| |
| if(validate_change) { |
| validate_update_etag(); |
| } |
| PRINTF("/validate GET"); |
| PRINTF("(%s %u)\n", coap_req->type == COAP_TYPE_CON ? "CON" : "NON", coap_req->mid); |
| |
| if((len = coap_get_header_etag(request, &bytes)) > 0 |
| && len == validate_etag_len && memcmp(validate_etag, bytes, len) == 0) { |
| PRINTF("validate "); |
| REST.set_response_status(response, REST.status.NOT_MODIFIED); |
| REST.set_header_etag(response, validate_etag, validate_etag_len); |
| |
| validate_change = 1; |
| PRINTF("### SERVER ACTION ### Resouce will change\n"); |
| } else { |
| /* Code 2.05 CONTENT is default. */ |
| REST.set_header_content_type(response, REST.type.TEXT_PLAIN); |
| REST.set_header_etag(response, validate_etag, validate_etag_len); |
| REST.set_header_max_age(response, 30); |
| REST.set_response_payload( |
| response, |
| buffer, |
| snprintf((char *)buffer, MAX_PLUGFEST_PAYLOAD, |
| "Type: %u\nCode: %u\nMID: %u", coap_req->type, coap_req->code, |
| coap_req->mid)); |
| } |
| } |
| static void |
| res_put_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset) |
| { |
| #if DEBUG > 0 |
| coap_packet_t *const coap_req = (coap_packet_t *)request; |
| |
| PRINTF("/validate PUT "); |
| PRINTF("(%s %u)\n", coap_req->type == COAP_TYPE_CON ? "CON" : "NON", coap_req->mid); |
| #endif |
| |
| if(((len = coap_get_header_if_match(request, &bytes)) > 0 |
| && (len == validate_etag_len |
| && memcmp(validate_etag, bytes, len) == 0)) |
| || len == 0) { |
| validate_update_etag(); |
| REST.set_header_etag(response, validate_etag, validate_etag_len); |
| |
| REST.set_response_status(response, REST.status.CHANGED); |
| |
| if(len > 0) { |
| validate_change = 1; |
| PRINTF("### SERVER ACTION ### Resouce will change\n"); |
| } |
| } else { |
| PRINTF( |
| "Check %u/%u\n [0x%02X%02X%02X%02X%02X%02X%02X%02X]\n [0x%02X%02X%02X%02X%02X%02X%02X%02X] ", |
| len, |
| validate_etag_len, |
| bytes[0], bytes[1], bytes[2], bytes[3], bytes[4], bytes[5], bytes[6], bytes[7], |
| validate_etag[0], validate_etag[1], validate_etag[2], validate_etag[3], validate_etag[4], validate_etag[5], validate_etag[6], validate_etag[7]); |
| |
| REST.set_response_status(response, PRECONDITION_FAILED_4_12); |
| } |
| } |