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Added ETSI IoT CoAP Plugtests server and tweaked rest-server-example.

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This commit is contained in:
Matthias Kovatsch 2012-03-17 16:51:28 +01:00
parent e794088d19
commit 2aa1f587bd
2 changed files with 568 additions and 3 deletions
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examples/er-rest-example/plugtest-server.c Normal file
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/*
* Copyright (c) 2011, Matthias Kovatsch and other contributors.
* 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
* Server for the ETSI IoT CoAP Plugtests, Paris, France, 24 - 25 March 2012
* \author
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "contiki.h"
#include "contiki-net.h"
#define MAX_PLUGFEST_PAYLOAD 64+1 /* +1 for the terminating zero, which is not transmitted */
/* Define which resources to include to meet memory constraints. */
#define REST_RES_TEST 1
#define REST_RES_LONG 1
#define REST_RES_QUERY 1
#define REST_RES_SEPARATE 1
#define REST_RES_LARGE 1
#define REST_RES_LARGE_UPDATE 1
#define REST_RES_LARGE_CREATE 1
#define REST_RES_OBS 1
#if !defined (CONTIKI_TARGET_MINIMAL_NET)
#warning "Should only be compiled for minimal-net!"
#endif
#if !UIP_CONF_IPV6_RPL && !defined (CONTIKI_TARGET_MINIMAL_NET) && !defined (CONTIKI_TARGET_NATIVE)
#warning "Compiling with static routing!"
#include "static-routing.h"
#endif
#include "erbium.h"
/* For CoAP-specific example: not required for normal RESTful Web service. */
#if WITH_COAP==7
#include "er-coap-07.h"
#else
#error "Plugtests server without CoAP"
#endif /* CoAP-specific example */
#define DEBUG 1
#if DEBUG
#define PRINTF(...) printf(__VA_ARGS__)
#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])
#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])
#else
#define PRINTF(...)
#define PRINT6ADDR(addr)
#define PRINTLLADDR(addr)
#endif
#if REST_RES_TEST
/*
* Default test resource
*/
RESOURCE(test, METHOD_GET|METHOD_POST|METHOD_PUT|METHOD_DELETE, "test", "title=\"Default test resource\"");
void
test_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 method = REST.get_method_type(request);
REST.set_header_content_type(response, REST.type.TEXT_PLAIN);
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));
PRINTF("/test ");
if (method & METHOD_GET)
{
PRINTF("GET ");
/* Code 2.05 CONTENT is default. */
}
else if (method & METHOD_POST)
{
PRINTF("POST ");
REST.set_response_status(response, REST.status.CREATED);
REST.set_header_location(response, "/nirvana");
}
else if (method & METHOD_PUT)
{
PRINTF("PUT ");
REST.set_response_status(response, REST.status.CHANGED);
}
else if (method & METHOD_DELETE)
{
PRINTF("DELETE ");
REST.set_response_status(response, REST.status.DELETED);
}
PRINTF("(%s %u)\n", coap_req->type==COAP_TYPE_CON?"CON":"NON", coap_req->mid);
}
#endif
#if REST_RES_LONG
/*
* Long path resource
*/
RESOURCE(longpath, METHOD_GET, "seg1/seg2/seg3", "title=\"Long path resource\"");
void
longpath_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 method = REST.get_method_type(request);
PRINTF("/seg1/seg2/seg3 ");
if (method & METHOD_GET)
{
PRINTF("GET ");
/* Code 2.05 CONTENT is default. */
REST.set_header_content_type(response, REST.type.TEXT_PLAIN);
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));
}
PRINTF("(%s %u)\n", coap_req->type==COAP_TYPE_CON?"CON":"NON", coap_req->mid);
}
#endif
#if REST_RES_QUERY
/*
* Resource accepting query parameters
*/
RESOURCE(query, METHOD_GET, "query", "title=\"Resource accepting query parameters\"");
void
query_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;
int len = 0;
const char *query = NULL;
PRINTF("/query GET (%s %u)\n", coap_req->type==COAP_TYPE_CON?"CON":"NON", coap_req->mid);
if ((len = REST.get_query(request, &query)))
{
PRINTF("Query: %.*s\n", len, query);
}
/* Code 2.05 CONTENT is default. */
REST.set_header_content_type(response, REST.type.TEXT_PLAIN);
REST.set_response_payload(response, buffer, snprintf((char *)buffer, MAX_PLUGFEST_PAYLOAD, "Type: %u\nCode: %u\nMID: %u\nQuery: %.*s", coap_req->type, coap_req->code, coap_req->mid, len, query));
}
#endif
#if REST_RES_SEPARATE
/* Required to manually (=not by the engine) handle the response transaction. */
#include "er-coap-07-separate.h"
#include "er-coap-07-transactions.h"
/*
* Resource which cannot be served immediately and which cannot be acknowledged in a piggy-backed way
*/
PERIODIC_RESOURCE(separate, METHOD_GET, "separate", "title=\"Resource which cannot be served immediately and which cannot be acknowledged in a piggy-backed way\"", 3*CLOCK_SECOND);
/* A structure to store the required information */
typedef struct application_separate_store {
/* Provided by Erbium to store generic request information such as remote address and token. */
coap_separate_t request_metadata;
/* Add fields for addition information to be stored for finalizing, e.g.: */
char buffer[MAX_PLUGFEST_PAYLOAD];
} application_separate_store_t;
static uint8_t separate_active = 0;
static application_separate_store_t separate_store[1];
void
separate_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;
PRINTF("/separate ");
if (separate_active)
{
PRINTF("BUSY ");
REST.set_response_status(response, REST.status.SERVICE_UNAVAILABLE);
const char *msg = "AlreadyInUse";
REST.set_response_payload(response, msg, strlen(msg));
}
else
{
PRINTF("ACKED ");
separate_active = 1;
/* Take over and skip response by engine. */
coap_separate_yield(request, &separate_store->request_metadata);
/* Be aware to respect the Block2 option, which is also stored in the coap_separate_t. */
snprintf(separate_store->buffer, MAX_PLUGFEST_PAYLOAD, "Type: %u\nCode: %u\nMID: %u", coap_req->type, coap_req->code, coap_req->mid);
}
PRINTF("(%s %u)\n", coap_req->type==COAP_TYPE_CON?"CON":"NON", coap_req->mid);
}
int
separate_periodic_handler(resource_t *resource)
{
if (separate_active)
{
PRINTF("/separate ");
coap_transaction_t *transaction = NULL;
if ( (transaction = coap_new_transaction(separate_store->request_metadata.mid, &separate_store->request_metadata.addr, separate_store->request_metadata.port)) )
{
PRINTF("RESPONSE");
coap_packet_t response[1]; /* This way the packet can be treated as pointer as usual. */
/* Restore the request information for the response. */
coap_separate_resume(response, &separate_store->request_metadata, CONTENT_2_05);
REST.set_header_content_type(response, REST.type.TEXT_PLAIN);
coap_set_payload(response, separate_store->buffer, strlen(separate_store->buffer));
/*
* Be aware to respect the Block2 option, which is also stored in the coap_separate_t.
* As it is a critical option, this example resource pretends to handle it for compliance.
*/
coap_set_header_block2(response, separate_store->request_metadata.block2_num, 0, separate_store->request_metadata.block2_size);
/* Warning: No check for serialization error. */
transaction->packet_len = coap_serialize_message(response, transaction->packet);
coap_send_transaction(transaction);
/* The engine will clear the transaction (right after send for NON, after acked for CON). */
separate_active = 0;
return 1;
} else {
PRINTF("ERROR (transaction)");
}
} /* if (separate_active) */
return 0;
}
#endif
#if REST_RES_LARGE
/*
* Large resource
*/
RESOURCE(large, METHOD_GET, "large", "title=\"Large resource\";rt=\"block\"");
#define CHUNKS_TOTAL 1280
void
large_handler(void* request, void* response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
{
int32_t strpos = 0;
/* Check the offset for boundaries of the resource data. */
if (*offset>=CHUNKS_TOTAL)
{
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;
}
/* Generate data until reaching CHUNKS_TOTAL. */
while (strpos<preferred_size)
{
strpos += snprintf((char *)buffer+strpos, preferred_size-strpos+1, "|%ld|", *offset);
}
/* snprintf() does not adjust return value if truncated by size. */
if (strpos > preferred_size)
{
strpos = preferred_size;
}
/* Truncate if above CHUNKS_TOTAL bytes. */
if (*offset+(int32_t)strpos > CHUNKS_TOTAL)
{
strpos = CHUNKS_TOTAL - *offset;
}
REST.set_response_payload(response, buffer, strpos);
REST.set_header_content_type(response, REST.type.TEXT_PLAIN);
/* IMPORTANT for chunk-wise resources: Signal chunk awareness to REST engine. */
*offset += strpos;
/* Signal end of resource representation. */
if (*offset>=CHUNKS_TOTAL)
{
*offset = -1;
}
}
#endif
#if REST_RES_LARGE_UPDATE
/*
* Large resource that can be updated using PUT method
*/
RESOURCE(large_update, METHOD_GET|METHOD_PUT, "large-update", "title=\"Large resource that can be updated using PUT method\";rt=\"block\"");
static int32_t large_update_size = 1280;
static uint8_t large_update_store[2048] = {0};
static unsigned int large_update_ct = -1;
void
large_update_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 method = REST.get_method_type(request);
if (method & METHOD_GET)
{
/* 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, 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;
}
} else {
const uint8_t *incoming = NULL;
size_t len = 0;
unsigned int ct = REST.get_header_content_type(request);
if (ct==-1)
{
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, &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 = REST.get_header_content_type(request);
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;
}
}
}
#endif
#if REST_RES_LARGE_CREATE
/*
* Large resource that can be created using POST method
*/
RESOURCE(large_create, METHOD_POST, "large-create", "title=\"Large resource that can be created using POST method\";rt=\"block\"");
void
large_create_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 method = REST.get_method_type(request);
const uint8_t *incoming = NULL;
size_t len = 0;
unsigned int ct = REST.get_header_content_type(request);
if (ct==-1)
{
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, &incoming)))
{
if (coap_req->block1_num*coap_req->block1_size+len <= 2048)
{
REST.set_response_status(response, REST.status.CREATED);
REST.set_header_location(response, "/nirvana");
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);
const char *error_msg = "2048B max.";
REST.set_response_payload(response, error_msg, strlen(error_msg));
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;
}
}
#endif
#if REST_RES_OBS
/*
* Observable resource which changes every 5 seconds
*/
PERIODIC_RESOURCE(obs, METHOD_GET, "obs", "title=\"Observable resource which changes every 5 seconds\";obs;rt=\"observe\"", 5*CLOCK_SECOND);
static uint32_t obs_counter = 0;
static char obs_content[16];
void
obs_handler(void* request, void* response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
{
REST.set_header_content_type(response, REST.type.TEXT_PLAIN);
REST.set_header_max_age(response, 5);
REST.set_response_payload(response, buffer, snprintf((char *)buffer, MAX_PLUGFEST_PAYLOAD, "TICK %lu", obs_counter));
/* A post_handler that handles subscriptions will be called for periodic resources by the REST framework. */
}
/*
* Additionally, a handler function named [resource name]_handler must be implemented for each PERIODIC_RESOURCE.
* It will be called by the REST manager process with the defined period.
*/
int
obs_periodic_handler(resource_t *r)
{
PRINTF("TICK /%s\n", r->url);
obs_counter = obs_counter + 1;
/* Notify the registered observers with the given message type, observe option, and payload. */
REST.notify_subscribers(r->url, 1, obs_counter, (uint8_t *)obs_content, snprintf(obs_content, sizeof(obs_content), "TICK %lu", obs_counter));
/* |-> implementation-specific, e.g. CoAP: 0=CON and 1=NON notification */
return 1;
}
#endif
PROCESS(plugtest_server, "PlugtestServer");
AUTOSTART_PROCESSES(&plugtest_server);
PROCESS_THREAD(plugtest_server, ev, data)
{
PROCESS_BEGIN();
PRINTF("ETSI IoT CoAP Plugtests Server\n");
#ifdef RF_CHANNEL
PRINTF("RF channel: %u\n", RF_CHANNEL);
#endif
#ifdef IEEE802154_PANID
PRINTF("PAN ID: 0x%04X\n", IEEE802154_PANID);
#endif
PRINTF("uIP buffer: %u\n", UIP_BUFSIZE);
PRINTF("LL header: %u\n", UIP_LLH_LEN);
PRINTF("IP+UDP header: %u\n", UIP_IPUDPH_LEN);
PRINTF("REST max chunk: %u\n", REST_MAX_CHUNK_SIZE);
/* if static routes are used rather than RPL */
#if !UIP_CONF_IPV6_RPL && !defined (CONTIKI_TARGET_MINIMAL_NET)
set_global_address();
configure_routing();
#endif
/* Initialize the REST engine. */
rest_init_engine();
/* Activate the application-specific resources. */
#if REST_RES_TEST
rest_activate_resource(&resource_test);
#endif
#if REST_RES_LONG
rest_activate_resource(&resource_longpath);
#endif
#if REST_RES_QUERY
rest_activate_resource(&resource_query);
#endif
#if REST_RES_SEPARATE
rest_set_pre_handler(&resource_separate, coap_separate_handler);
rest_activate_periodic_resource(&periodic_resource_separate);
#endif
#if REST_RES_LARGE
rest_activate_resource(&resource_large);
#endif
#if REST_RES_LARGE_UPDATE
large_update_ct = REST.type.APPLICATION_OCTET_STREAM;
rest_activate_resource(&resource_large_update);
#endif
#if REST_RES_LARGE_CREATE
rest_activate_resource(&resource_large_create);
#endif
#if REST_RES_OBS
rest_activate_periodic_resource(&periodic_resource_obs);
#endif
/* Define application-specific events here. */
while(1) {
PROCESS_WAIT_EVENT();
} /* while (1) */
PROCESS_END();
}

6
examples/er-rest-example/rest-server-example.c
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@ -447,7 +447,7 @@ separate_finalize_handler()
* It takes an additional period parameter, which defines the interval to call [name]_periodic_handler().
* A default post_handler takes care of subscriptions by managing a list of subscribers to notify.
*/
PERIODIC_RESOURCE(pushing, METHOD_GET, "debug/push", "title=\"Periodic demo\";rt=\"Observable\"", 5*CLOCK_SECOND);
PERIODIC_RESOURCE(pushing, METHOD_GET, "debug/push", "title=\"Periodic demo\";obs", 5*CLOCK_SECOND);
void
pushing_handler(void* request, void* response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
@ -476,7 +476,7 @@ pushing_periodic_handler(resource_t *r)
/* Notify the registered observers with the given message type, observe option, and payload. */
REST.notify_subscribers(r->url, 1, periodic_i, (uint8_t *)content, snprintf(content, sizeof(content), "TICK %lu", periodic_i));
/* |-> implementation-specific, e.g. CoAP: 1=CON and 0=NON notification */
/* |-> implementation-specific, e.g. CoAP: 0=CON and 1=NON notification */
return 1;
}
@ -488,7 +488,7 @@ pushing_periodic_handler(resource_t *r)
* Additionally takes a period parameter that defines the interval to call [name]_periodic_handler().
* A default post_handler takes care of subscriptions and manages a list of subscribers to notify.
*/
EVENT_RESOURCE(event, METHOD_GET, "sensors/button", "title=\"Event demo\";rt=\"Observable\"");
EVENT_RESOURCE(event, METHOD_GET, "sensors/button", "title=\"Event demo\";obs");
void
event_handler(void* request, void* response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)