mirror of
https://github.com/oliverschmidt/contiki.git
synced 2024-08-30 19:29:45 +00:00
334 lines
9.6 KiB
C
334 lines
9.6 KiB
C
#include "contiki.h"
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#include <string.h> /*for string operations in match_addresses*/
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#include "rest.h"
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#include "buffer.h"
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#define DEBUG 0
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#if DEBUG
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#include <stdio.h>
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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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/*FIXME it is possible to define some of the rest functions as MACROs rather than functions full of ifdefs.*/
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PROCESS_NAME(rest_manager_process);
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LIST(restful_services);
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LIST(restful_periodic_services);
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void
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rest_init(void)
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{
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list_init(restful_services);
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#ifdef WITH_COAP
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coap_set_service_callback(rest_invoke_restful_service);
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#else /*WITH_COAP*/
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http_set_service_callback(rest_invoke_restful_service);
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#endif /*WITH_COAP*/
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/*Start rest framework process*/
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process_start(&rest_manager_process, NULL);
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}
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void
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rest_activate_resource(resource_t* resource)
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{
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/*add it to the restful web service link list*/
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list_add(restful_services, resource);
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}
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void
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rest_activate_periodic_resource(periodic_resource_t* periodic_resource)
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{
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list_add(restful_periodic_services, periodic_resource);
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rest_activate_resource(periodic_resource->resource);
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}
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void
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rest_set_user_data(resource_t* resource, void* user_data)
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{
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resource->user_data = user_data;
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}
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void*
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rest_get_user_data(resource_t* resource)
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{
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return resource->user_data;
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}
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void
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rest_set_pre_handler(resource_t* resource, restful_pre_handler pre_handler)
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{
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resource->pre_handler = pre_handler;
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}
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void
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rest_set_post_handler(resource_t* resource, restful_post_handler post_handler)
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{
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resource->post_handler = post_handler;
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}
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list_t
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rest_get_resources(void)
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{
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return restful_services;
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}
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void
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rest_set_response_status(RESPONSE* response, status_code_t status)
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{
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#ifdef WITH_COAP
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coap_set_code(response, status);
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#else /*WITH_COAP*/
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http_set_status(response, status);
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#endif /*WITH_COAP*/
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}
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#ifdef WITH_COAP
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static method_t coap_to_rest_method(coap_method_t method)
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{
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return (method_t)(1 << (method - 1));
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}
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static coap_method_t rest_to_coap_method(method_t method)
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{
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coap_method_t coap_method = COAP_GET;
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switch (method) {
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case METHOD_GET:
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coap_method = COAP_GET;
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break;
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case METHOD_POST:
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coap_method = COAP_POST;
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break;
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case METHOD_PUT:
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coap_method = COAP_PUT;
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break;
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case METHOD_DELETE:
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coap_method = COAP_DELETE;
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break;
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default:
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break;
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}
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return coap_method;
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}
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#endif /*WITH_COAP*/
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method_t
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rest_get_method_type(REQUEST* request)
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{
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#ifdef WITH_COAP
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return coap_to_rest_method(coap_get_method(request));
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#else
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return (method_t)(request->request_type);
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#endif
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}
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/*Only defined for COAP for now.*/
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#ifdef WITH_COAP
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void
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rest_set_method_type(REQUEST* request, method_t method)
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{
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coap_set_method(request, rest_to_coap_method(method));
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}
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#endif /*WITH_COAP*/
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void
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rest_set_response_payload(RESPONSE* response, uint8_t* payload, uint16_t size)
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{
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#ifdef WITH_COAP
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coap_set_payload(response, payload, size);
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#else
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http_set_res_payload(response, payload, size);
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#endif /*WITH_COAP*/
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}
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/*Only defined for COAP for now.*/
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#ifdef WITH_COAP
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void
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rest_set_request_payload(REQUEST* request, uint8_t* payload, uint16_t size)
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{
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coap_set_payload(request, payload, size);
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}
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#endif /*WITH_COAP*/
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int
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rest_get_query_variable(REQUEST* request, const char *name, char* output, uint16_t output_size)
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{
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#ifdef WITH_COAP
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return coap_get_query_variable(request, name, output, output_size);
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#else
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return http_get_query_variable(request, name, output, output_size);
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#endif /*WITH_COAP*/
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}
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int
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rest_get_post_variable(REQUEST* request, const char *name, char* output, uint16_t output_size)
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{
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#ifdef WITH_COAP
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return coap_get_post_variable(request, name, output, output_size);
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#else
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return http_get_post_variable(request, name, output, output_size);
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#endif /*WITH_COAP*/
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}
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content_type_t
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rest_get_header_content_type(REQUEST* request)
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{
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#ifdef WITH_COAP
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return coap_get_header_content_type(request);
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#else
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return http_get_header_content_type(request);
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#endif /*WITH_COAP*/
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}
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int
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rest_set_header_content_type(RESPONSE* response, content_type_t content_type)
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{
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#ifdef WITH_COAP
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return coap_set_header_content_type(response, content_type);
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#else
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return http_set_res_header(response, HTTP_HEADER_NAME_CONTENT_TYPE, http_get_content_type_string(content_type), 1);
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#endif /*WITH_COAP*/
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}
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int
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rest_set_header_etag(RESPONSE* response, uint8_t* etag, uint8_t size)
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{
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#ifdef WITH_COAP
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return coap_set_header_etag(response, etag, size);
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#else
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/*FIXME for now etag should be a "/0" ending string for http part*/
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char temp_etag[10];
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memcpy(temp_etag, etag, size);
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temp_etag[size] = 0;
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return http_set_res_header(response, HTTP_HEADER_NAME_ETAG, temp_etag, 1);
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#endif /*WITH_COAP*/
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}
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int
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rest_invoke_restful_service(REQUEST* request, RESPONSE* response)
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{
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int found = 0;
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const char* url = request->url;
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uint16_t url_len = request->url_len;
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PRINTF("rest_invoke_restful_service url %s url_len %d -->\n", url, url_len);
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resource_t* resource = NULL;
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for (resource = (resource_t*)list_head(restful_services); resource; resource = resource->next) {
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/*if the web service handles that kind of requests and urls matches*/
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if (url && strlen(resource->url) == url_len && strncmp(resource->url, url, url_len) == 0){
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found = 1;
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method_t method = rest_get_method_type(request);
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PRINTF("method %u, resource->methods_to_handle %u\n", (uint16_t)method, resource->methods_to_handle);
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if (resource->methods_to_handle & method) {
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/*FIXME Need to move somewhere else*/
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#ifdef WITH_COAP
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uint32_t lifetime = 0;
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if (coap_get_header_subscription_lifetime(request, &lifetime)) {
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PRINTF("Lifetime %lu\n", lifetime);
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periodic_resource_t* periodic_resource = NULL;
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for (periodic_resource = (periodic_resource_t*)list_head(restful_periodic_services);
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periodic_resource;
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periodic_resource = periodic_resource->next) {
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if (periodic_resource->resource == resource) {
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PRINTF("Periodic Resource Found\n");
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PRINT6ADDR(&request->addr);
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periodic_resource->lifetime = lifetime;
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stimer_set(periodic_resource->lifetime_timer, lifetime);
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uip_ipaddr_copy(&periodic_resource->addr, &request->addr);
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}
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}
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}
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#endif /*WITH_COAP*/
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/*call pre handler if it exists*/
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if (!resource->pre_handler || resource->pre_handler(request, response)) {
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/* call handler function*/
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resource->handler(request, response);
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/*call post handler if it exists*/
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if (resource->post_handler) {
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resource->post_handler(request, response);
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}
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}
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} else {
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rest_set_response_status(response, METHOD_NOT_ALLOWED_405);
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}
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break;
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}
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}
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if (!found) {
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rest_set_response_status(response, NOT_FOUND_404);
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}
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return found;
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}
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PROCESS(rest_manager_process, "Rest Process");
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PROCESS_THREAD(rest_manager_process, ev, data)
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{
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PROCESS_BEGIN();
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/*start the coap or http server*/
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process_start(SERVER_PROCESS, NULL);
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PROCESS_PAUSE();
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/*Periodic resources are only available to COAP implementation*/
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#if 0
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#ifdef WITH_COAP
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periodic_resource_t* periodic_resource = NULL;
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for (periodic_resource = (periodic_resource_t*)list_head(restful_periodic_services); periodic_resource; periodic_resource = periodic_resource->next) {
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if (periodic_resource->period) {
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PRINTF("Set timer for Res: %s to %lu\n", periodic_resource->resource->url, periodic_resource->period);
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etimer_set(periodic_resource->handler_cb_timer, periodic_resource->period);
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}
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}
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while(1) {
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PROCESS_WAIT_EVENT();
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if (ev == PROCESS_EVENT_TIMER) {
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for (periodic_resource = (periodic_resource_t*)list_head(restful_periodic_services);periodic_resource;periodic_resource = periodic_resource->next) {
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if (periodic_resource->period && etimer_expired(periodic_resource->handler_cb_timer)) {
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PRINTF("Etimer expired for %s (period:%lu life:%lu)\n", periodic_resource->resource->url, periodic_resource->period, periodic_resource->lifetime);
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/*call the periodic handler function if exists*/
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if (periodic_resource->periodic_handler) {
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if ((periodic_resource->periodic_handler)(periodic_resource->resource)) {
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PRINTF("RES CHANGE\n");
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if (!stimer_expired(periodic_resource->lifetime_timer)) {
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PRINTF("TIMER NOT EXPIRED\n");
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resource_changed(periodic_resource);
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periodic_resource->lifetime = stimer_remaining(periodic_resource->lifetime_timer);
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} else {
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periodic_resource->lifetime = 0;
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}
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}
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PRINTF("%s lifetime %lu (%lu) expired %d\n", periodic_resource->resource->url, stimer_remaining(periodic_resource->lifetime_timer), periodic_resource->lifetime, stimer_expired(periodic_resource->lifetime_timer));
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}
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etimer_reset(periodic_resource->handler_cb_timer);
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}
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}
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}
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}
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#endif /*WITH_COAP*/
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#endif
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PROCESS_END();
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}
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