Bug fix and updates

This commit is contained in:
doganyazar 2010-11-24 10:16:45 +00:00
parent e4fdaa3ccc
commit 726f927c40
6 changed files with 311 additions and 111 deletions

View File

@ -1,14 +1,9 @@
/*
* rest-util.c
*
* Created on: Oct 26, 2010
* Author: dogan
*/
#include <stddef.h> /*for size_t*/
#include <ctype.h> /*for isxdigit*/
#include <string.h>
#include "contiki-net.h"
/*Copied from mangoose http server*/
size_t
decode(const char *src, size_t srclen, char *dst, size_t dstlen, int is_form)
@ -50,18 +45,15 @@ get_variable(const char *name, const char *buffer, size_t buflen, char* output,
var_len = strlen(name);
end = buffer + buflen;
for (start = buffer; start + var_len < end; start++)
{
for (start = buffer; start + var_len < end; start++){
if ((start == buffer || start[-1] == '&') && start[var_len] == '=' &&
! strncmp(name, start, var_len))
{
! strncmp(name, start, var_len)) {
/* Point p to variable value */
start += var_len + 1;
/* Point s to the end of the value */
end_of_value = (const char *) memchr(start, '&', end - start);
if (end_of_value == NULL)
{
if (end_of_value == NULL) {
end_of_value = end;
}
@ -71,3 +63,56 @@ get_variable(const char *name, const char *buffer, size_t buflen, char* output,
return 0;
}
uint32_t
read_int(uint8_t *buf, uint8_t size)
{
uint32_t data = 0;
if (size >= 1 && size <= 4) {
uint8_t *p = (uint8_t *)&data;
memcpy(p + 4 - size, buf, size);
}
return uip_ntohl(data);
}
int
write_int(uint8_t *buf, uint32_t data, uint8_t size)
{
int success = 0;
if (size >= 1 && size <= 4) {
data = uip_htonl(data);
memcpy(buf, ((char*)(&data)) + 4 - size, size);
success = size;
}
return success;
}
int
write_variable_int(uint8_t *buf, uint32_t data)
{
uint8_t size = 4;
if (data <= 0xFF) {
size = 1;
} else if (data <= 0xFFFF) {
size = 2;
} else if (data <= 0xFFFFFF) {
size = 3;
}
return write_int(buf, data, size);
}
uint16_t log_2(uint16_t value)
{
uint16_t result = 0;
do {
value = value >> 1;
result++;
} while (value);
return result ? result - 1 : result;
}

View File

@ -11,4 +11,10 @@
size_t decode(const char *src, size_t srclen, char *dst, size_t dstlen, int is_form);
int get_variable(const char *name, const char *buffer, size_t buflen, char* output, size_t output_len, int decode_type);
uint32_t read_int(uint8_t *buf, uint8_t size);
int write_int(uint8_t *buf, uint32_t data, uint8_t size);
int write_variable_int(uint8_t *buf, uint32_t data);
uint16_t log_2(uint16_t value);
#endif /* RESTUTIL_H_ */

View File

@ -3,17 +3,24 @@
#include "rest.h"
#include "buffer.h"
#define DEBUG 1
#define DEBUG 0
#if DEBUG
#include <stdio.h>
#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 ", ((u8_t *)addr)[0], ((u8_t *)addr)[1], ((u8_t *)addr)[2], ((u8_t *)addr)[3], ((u8_t *)addr)[4], ((u8_t *)addr)[5], ((u8_t *)addr)[6], ((u8_t *)addr)[7], ((u8_t *)addr)[8], ((u8_t *)addr)[9], ((u8_t *)addr)[10], ((u8_t *)addr)[11], ((u8_t *)addr)[12], ((u8_t *)addr)[13], ((u8_t *)addr)[14], ((u8_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
/*FIXME it is possible to define some of the rest functions as MACROs rather than functions full of ifdefs.*/
PROCESS_NAME(rest_manager_process);
LIST(restful_services);
LIST(restful_periodic_services);
void
rest_init(void)
@ -26,84 +33,44 @@ rest_init(void)
http_set_service_callback(rest_invoke_restful_service);
#endif /*WITH_COAP*/
//start the coap server
process_start(SERVER_PROCESS, NULL);
/*Start rest framework process*/
process_start(&rest_manager_process, NULL);
}
void
rest_activate_resource(Resource_t* resource)
rest_activate_resource(resource_t* resource)
{
/*add it to the restful web service link list*/
list_add(restful_services, resource);
}
int
rest_invoke_restful_service(REQUEST* request, RESPONSE* response)
void
rest_activate_periodic_resource(periodic_resource_t* periodic_resource)
{
int found = 0;
const char* url = request->url;
uint16_t url_len = request->url_len;
PRINTF("rest_invoke_restful_service url %s url_len %d -->\n", url, url_len);
Resource_t* resource = NULL;
for ( resource = (Resource_t*)list_head(restful_services); resource ; resource = resource->next ){
/*if the web service handles that kind of requests and urls matches*/
/*FIXME Need to make case insensitive?*/
if (url && strlen(resource->url) == url_len && strncmp(resource->url, url, url_len) == 0){
found = 1;
method_t method = rest_get_method_type(request);
PRINTF("method %u, resource->methods_to_handle %u\n", (uint16_t)method, resource->methods_to_handle);
//DY FIX_ME resources can only handle 1 method currently anyway, fix this
if ( resource->methods_to_handle & method ) {
/*call pre handler if it exists*/
if (!resource->pre_handler || resource->pre_handler(request, response)) {
/* call handler function*/
resource->handler(request, response);
/*call post handler if it exists*/
if (resource->post_handler) {
resource->post_handler(request, response);
}
}
} else {
rest_set_response_status(response, METHOD_NOT_ALLOWED_405);
}
break;
}
}
if (!found) {
rest_set_response_status(response, NOT_FOUND_404);
}
return found;
list_add(restful_periodic_services, periodic_resource);
rest_activate_resource(periodic_resource->resource);
}
void
rest_set_user_data(Resource_t* resource, void* user_data)
rest_set_user_data(resource_t* resource, void* user_data)
{
resource->user_data = user_data;
}
void*
rest_get_user_data(Resource_t* resource)
rest_get_user_data(resource_t* resource)
{
return resource->user_data;
}
void
rest_set_pre_handler(Resource_t* resource, restful_pre_handler pre_handler)
rest_set_pre_handler(resource_t* resource, restful_pre_handler pre_handler)
{
resource->pre_handler = pre_handler;
}
void
rest_set_post_handler(Resource_t* resource, restful_post_handler post_handler)
rest_set_post_handler(resource_t* resource, restful_post_handler post_handler)
{
resource->post_handler = post_handler;
}
@ -118,33 +85,79 @@ void
rest_set_response_status(RESPONSE* response, status_code_t status)
{
#ifdef WITH_COAP
coap_set_code(response, (uint8_t)status);
coap_set_code(response, status);
#else /*WITH_COAP*/
http_set_status(response, status);
#endif /*WITH_COAP*/
}
#ifdef WITH_COAP
static method_t coap_to_rest_method(coap_method_t method)
{
return (method_t)(1 << (method - 1));
}
static coap_method_t rest_to_coap_method(method_t method)
{
coap_method_t coap_method = COAP_GET;
switch (method) {
case METHOD_GET:
coap_method = COAP_GET;
break;
case METHOD_POST:
coap_method = COAP_POST;
break;
case METHOD_PUT:
coap_method = COAP_PUT;
break;
case METHOD_DELETE:
coap_method = COAP_DELETE;
break;
default:
break;
}
return coap_method;
}
#endif /*WITH_COAP*/
method_t
rest_get_method_type(REQUEST* request)
{
#ifdef WITH_COAP
return (method_t)((request->code) << (request->code - 1));
return coap_to_rest_method(coap_get_method(request));
#else
return (method_t)(request->request_type);
#endif
}
/*Only defined for COAP for now.*/
#ifdef WITH_COAP
void
rest_set_payload(RESPONSE* response, uint8_t* payload, uint16_t size)
rest_set_method_type(REQUEST* request, method_t method)
{
coap_set_method(request, rest_to_coap_method(method));
}
#endif /*WITH_COAP*/
void
rest_set_response_payload(RESPONSE* response, uint8_t* payload, uint16_t size)
{
#ifdef WITH_COAP
coap_set_payload(response, payload, size);
#else
http_set_payload(response, payload, size);
http_set_res_payload(response, payload, size);
#endif /*WITH_COAP*/
}
/*Only defined for COAP for now.*/
#ifdef WITH_COAP
void
rest_set_request_payload(REQUEST* request, uint8_t* payload, uint16_t size)
{
coap_set_payload(request, payload, size);
}
#endif /*WITH_COAP*/
int
rest_get_query_variable(REQUEST* request, const char *name, char* output, uint16_t output_size)
{
@ -199,3 +212,118 @@ rest_set_header_etag(RESPONSE* response, uint8_t* etag, uint8_t size)
return http_set_res_header(response, HTTP_HEADER_NAME_ETAG, temp_etag, 1);
#endif /*WITH_COAP*/
}
int
rest_invoke_restful_service(REQUEST* request, RESPONSE* response)
{
int found = 0;
const char* url = request->url;
uint16_t url_len = request->url_len;
PRINTF("rest_invoke_restful_service url %s url_len %d -->\n", url, url_len);
resource_t* resource = NULL;
for (resource = (resource_t*)list_head(restful_services); resource; resource = resource->next) {
/*if the web service handles that kind of requests and urls matches*/
if (url && strlen(resource->url) == url_len && strncmp(resource->url, url, url_len) == 0){
found = 1;
method_t method = rest_get_method_type(request);
PRINTF("method %u, resource->methods_to_handle %u\n", (uint16_t)method, resource->methods_to_handle);
if (resource->methods_to_handle & method) {
/*FIXME Move somewhere else*/
#ifdef WITH_COAP
uint32_t lifetime = 0;
if (coap_get_header_subscription_lifetime(request, &lifetime)) {
PRINTF("Lifetime %lu\n", lifetime);
periodic_resource_t* periodic_resource = NULL;
for (periodic_resource = (periodic_resource_t*)list_head(restful_periodic_services);
periodic_resource;
periodic_resource = periodic_resource->next) {
if (periodic_resource->resource == resource) {
PRINTF("Periodic Resource Found\n");
PRINT6ADDR(&request->addr);
periodic_resource->lifetime = lifetime;
uip_ipaddr_copy(&periodic_resource->addr, &request->addr);
}
}
}
#endif /*WITH_COAP*/
/*call pre handler if it exists*/
if (!resource->pre_handler || resource->pre_handler(request, response)) {
/* call handler function*/
resource->handler(request, response);
/*call post handler if it exists*/
if (resource->post_handler) {
resource->post_handler(request, response);
}
}
} else {
rest_set_response_status(response, METHOD_NOT_ALLOWED_405);
}
break;
}
}
if (!found) {
rest_set_response_status(response, NOT_FOUND_404);
}
return found;
}
PROCESS(rest_manager_process, "Rest Process");
PROCESS_THREAD(rest_manager_process, ev, data)
{
PROCESS_BEGIN();
/*start the coap or http server*/
process_start(SERVER_PROCESS, NULL);
PROCESS_PAUSE();
/*Periodic resources are only available to COAP implementation*/
#ifdef WITH_COAP
periodic_resource_t* periodic_resource = NULL;
for (periodic_resource = (periodic_resource_t*)list_head(restful_periodic_services); periodic_resource; periodic_resource = periodic_resource->next) {
if (periodic_resource->period) {
PRINTF("Set timer for Res: %s to %u\n", periodic_resource->resource->url, periodic_resource->period);
etimer_set(periodic_resource->timer, CLOCK_SECOND * periodic_resource->period);
}
}
while(1) {
PROCESS_WAIT_EVENT();
if (ev == PROCESS_EVENT_TIMER) {
for (periodic_resource=(periodic_resource_t*)list_head(restful_periodic_services);periodic_resource;periodic_resource = periodic_resource->next) {
if (periodic_resource->period && etimer_expired(periodic_resource->timer)) {
PRINTF("Etimer expired for %s (period:%u life:%lu)\n", periodic_resource->resource->url, periodic_resource->period, periodic_resource->lifetime);
/*call the periodic handler function if exists*/
if (periodic_resource->periodic_handler) {
if ((periodic_resource->periodic_handler)(periodic_resource->resource) && periodic_resource->lifetime) {
resource_changed(periodic_resource);
}
/*Update lifetime*/
if (periodic_resource->lifetime > periodic_resource->period) {
periodic_resource->lifetime -= periodic_resource->period;
} else {
periodic_resource->lifetime = 0;
}
PRINTF("%s life upd:%lu\n", periodic_resource->resource->url, periodic_resource->lifetime);
}
etimer_reset(periodic_resource->timer);
}
}
}
}
#endif /*WITH_COAP*/
PROCESS_END();
}

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@ -20,15 +20,14 @@
#define SERVER_PROCESS (&http_server)
#endif /*WITH_COAP*/
struct Resource_t;
struct resource_t;
/*REST method types*/
typedef enum {
METHOD_GET = (1 << 0),
METHOD_HEAD = (1 << 1),
METHOD_POST = (1 << 2),
METHOD_PUT = (1 << 3),
METHOD_DELETE = (1 << 4)
METHOD_POST = (1 << 1),
METHOD_PUT = (1 << 2),
METHOD_DELETE = (1 << 3)
} method_t;
/*Signature of handler functions*/
@ -36,13 +35,14 @@ typedef void (*restful_handler) (REQUEST* request, RESPONSE* response);
typedef int (*restful_pre_handler) (REQUEST* request, RESPONSE* response);
typedef void (*restful_post_handler) (REQUEST* request, RESPONSE* response);
typedef void (*restful_periodic_handler) (struct Resource_t* resource);
typedef int (*restful_periodic_handler) (struct resource_t* resource);
typedef void (*restful_periodic_request_generator) (REQUEST* request);
/*
* Data structure representing a resource in REST.
*/
struct Resource_t {
struct Resource_t *next; /*points to next resource defined*/
struct resource_t {
struct resource_t *next; /*points to next resource defined*/
method_t methods_to_handle; /*handled HTTP methods*/
const char* url; /*handled URL*/
restful_handler handler; /*handler function*/
@ -50,17 +50,39 @@ struct Resource_t {
restful_post_handler post_handler; /*to be called after handler, may perform finalizations (cleanup, etc)*/
void* user_data; /*pointer to user specific data*/
};
typedef struct Resource_t Resource_t;
typedef struct resource_t resource_t;
struct periodic_resource_t {
struct periodic_resource_t *next;
resource_t *resource;
uint16_t period;
struct etimer* timer;
restful_periodic_handler periodic_handler;
restful_periodic_request_generator periodic_request_generator;
uint32_t lifetime;
uip_ipaddr_t addr;
struct uip_udp_conn *client_conn;
};
typedef struct periodic_resource_t periodic_resource_t;
/*
* Macro to define a Resource
* Resources are statically defined for the sake of efficiency and better memory management.
*/
#define RESOURCE(name, methods_to_handle,url) \
void name##_handler(REQUEST* request, RESPONSE* response); \
#define RESOURCE(name, methods_to_handle, url) \
void name##_handler(REQUEST*, RESPONSE*); \
resource_t resource_##name = {NULL, methods_to_handle, url, name##_handler, NULL, NULL, NULL}
/*
* Macro to define a Periodic Resource
*/
#define PERIODIC_RESOURCE(name, methods_to_handle, url, period) \
RESOURCE(name, methods_to_handle, url); \
int name##_periodic_handler(resource_t*); \
void name##_periodic_request_generator(REQUEST*); \
struct etimer timer_##name; \
Resource_t resource_##name = {NULL, methods_to_handle, url, name##_handler, NULL, NULL, NULL}
periodic_resource_t periodic_resource_##name = {NULL, &resource_##name, period, &timer_##name, name##_periodic_handler, name##_periodic_request_generator, 0}
/*
* Initializes REST framework and starts HTTP or COAP process
@ -70,7 +92,9 @@ void rest_init(void);
/*
* Resources wanted to be accessible should be activated with the following code.
*/
void rest_activate_resource(Resource_t* resource);
void rest_activate_resource(resource_t* resource);
void rest_activate_periodic_resource(periodic_resource_t* periodic_resource);
/*
* To be called by HTTP/COAP server as a callback function when a new service request appears.
@ -98,6 +122,7 @@ int rest_get_query_variable(REQUEST* request, const char *name, char* output, ui
int rest_get_post_variable(REQUEST* request, const char *name, char* output, uint16_t output_size);
method_t rest_get_method_type(REQUEST* request);
void rest_set_method_type(REQUEST* request, method_t method);
/*
* Getter for the request content type
@ -120,32 +145,33 @@ int rest_set_header_etag(RESPONSE* response, uint8_t* etag, uint8_t size);
void rest_set_response_status(RESPONSE* response, status_code_t status);
/*
* Setter for the payload of the response
* Setter for the payload of the request and response
*/
void rest_set_payload(RESPONSE* response, uint8_t* payload, uint16_t size);
void rest_set_request_payload(RESPONSE* response, uint8_t* payload, uint16_t size);
void rest_set_response_payload(RESPONSE* response, uint8_t* payload, uint16_t size);
/*
* Getter method for user specific data.
*/
void* rest_get_user_data(Resource_t* resource);
void* rest_get_user_data(resource_t* resource);
/*
* Setter method for user specific data.
*/
void rest_set_user_data(Resource_t* resource, void* user_data);
void rest_set_user_data(resource_t* resource, void* user_data);
/*
* Sets the pre handler function of the Resource.
* If set, this function will be called just before the original handler function.
* Can be used to setup work before resource handling.
*/
void rest_set_pre_handler(Resource_t* resource, restful_pre_handler pre_handler);
void rest_set_pre_handler(resource_t* resource, restful_pre_handler pre_handler);
/*
* Sets the post handler function of the Resource.
* If set, this function will be called just after the original handler function.
* Can be used to do cleanup (deallocate memory, etc) after resource handling.
*/
void rest_set_post_handler(Resource_t* resource, restful_post_handler post_handler);
void rest_set_post_handler(resource_t* resource, restful_post_handler post_handler);
#endif /*REST_H_*/

View File

@ -37,33 +37,28 @@ void configure_routing(void)
{
PRINTF("configure_routing\n");
if(node_id < 10) //COOJA
{
//Go to desktop machine over border router
ADD_ROUTE(DESKTOP_MACHINE_ID,COOJA_BORDER_ROUTER_ID);
}
else //SKY
{
if(node_id < 20) //First hops (ids between 10-20)
{
//Go to desktop machine over border router
if (node_id < 10) { /*COOJA*/
/*Go to desktop machine over border router*/
ADD_ROUTE(DESKTOP_MACHINE_ID, COOJA_BORDER_ROUTER_ID);
} else { /*SKY*/
if (node_id < 20) { /*First hops (ids between 10-20)*/
/*Go to desktop machine over border router*/
ADD_ROUTE(DESKTOP_MACHINE_ID, BORDER_ROUTER_ID);
}
switch(node_id)
{
switch(node_id) {
case 12:
ADD_ROUTE(22, 22); //Go to next hop over the local address of next hop
ADD_ROUTE(22, 22); /*Go to next hop over the local address of next hop*/
break;
case 13:
ADD_ROUTE(23, 23); //Go to next hop over the local address of next hop
ADD_ROUTE(23, 23); /*Go to next hop over the local address of next hop*/
break;
case 22:
ADD_ROUTE(0, 12); //Go to desktop machine over the corresponding first hop
ADD_ROUTE(0, 12); /*Go to desktop machine over the corresponding first hop*/
break;
case 23:
ADD_ROUTE(0, 13); //Go to desktop machine over the corresponding first hop
ADD_ROUTE(0, 13); /*Go to desktop machine over the corresponding first hop*/
break;
default:
break;

View File

@ -10,11 +10,11 @@
#define NODE_IP(nodeid,type,ipaddr) NODE_##nodeid##_##type(ipaddr)
//desktop machine
/*desktop machine*/
#define DESKTOP_MACHINE_ID 0
#define NODE_0_GLOBAL(ipaddr) uip_ip6addr(ipaddr, 0xaaaa, 0, 0, 0, 0, 0, 0, 0x0001)
//Cooja Nodes
/*Cooja Nodes*/
#define COOJA_BORDER_ROUTER_ID 1
#define NODE_1_GLOBAL(ipaddr) uip_ip6addr(ipaddr, 0xaaaa, 0, 0, 0, 0x0212, 0x7401, 0x0001, 0x0101)
#define NODE_1_LOCAL(ipaddr) uip_ip6addr(ipaddr, 0xfe80, 0, 0, 0, 0x0212, 0x7401, 0x0001, 0x0101)
@ -25,19 +25,19 @@
#define NODE_6_GLOBAL(ipaddr) uip_ip6addr(ipaddr, 0xaaaa, 0, 0, 0, 0x0212, 0x7406, 0x0006, 0x0606)
#define NODE_6_LOCAL(ipaddr) uip_ip6addr(ipaddr, 0xfe80, 0, 0, 0, 0x0212, 0x7406, 0x0006, 0x0606)
//nodes
/*real nodes*/
#define BORDER_ROUTER_ID 11
#define NODE_11_GLOBAL(ipaddr) uip_ip6addr(ipaddr, 0xaaaa, 0, 0, 0, 0x0212, 0x7400, 0x116e, 0xd5f1)
#define NODE_11_LOCAL(ipaddr) uip_ip6addr(ipaddr, 0xfe80, 0, 0, 0, 0x0212, 0x7400, 0x116e, 0xd5f1)
#define NODE_12_GLOBAL(ipaddr) uip_ip6addr(ipaddr, 0xaaaa, 0, 0, 0, 0x0212, 0x7400, 0x116e, 0xc0f6)
#define NODE_12_LOCAL(ipaddr) uip_ip6addr(ipaddr, 0xfe80, 0, 0, 0, 0x0212, 0x7400, 0x116e, 0xc0f6)
#define NODE_12_GLOBAL(ipaddr) uip_ip6addr(ipaddr, 0xaaaa, 0, 0, 0, 0x0212, 0x7400, 0x1160, 0xf95a)
#define NODE_12_LOCAL(ipaddr) uip_ip6addr(ipaddr, 0xfe80, 0, 0, 0, 0x0212, 0x7400, 0x1160, 0xf95a)
#define NODE_13_GLOBAL(ipaddr) uip_ip6addr(ipaddr, 0xaaaa, 0, 0, 0, 0x0212, 0x7400, 0x117d, 0x3575)
#define NODE_13_LOCAL(ipaddr) uip_ip6addr(ipaddr, 0xfe80, 0, 0, 0, 0x0212, 0x7400, 0x117d, 0x3575)
#define NODE_22_GLOBAL(ipaddr) uip_ip6addr(ipaddr, 0xaaaa, 0, 0, 0, 0x0212, 0x7400, 0x1160, 0xf95a)
#define NODE_22_LOCAL(ipaddr) uip_ip6addr(ipaddr, 0xfe80, 0, 0, 0, 0x0212, 0x7400, 0x1160, 0xf95a)
#define NODE_22_GLOBAL(ipaddr) uip_ip6addr(ipaddr, 0xaaaa, 0, 0, 0, 0x0212, 0x7400, 0x116e, 0xc0f6)
#define NODE_22_LOCAL(ipaddr) uip_ip6addr(ipaddr, 0xfe80, 0, 0, 0, 0x0212, 0x7400, 0x116e, 0xc0f6)
#define NODE_23_GLOBAL(ipaddr) uip_ip6addr(ipaddr, 0xaaaa, 0, 0, 0, 0x0212, 0x7400, 0x117d, 0x0d5a)
#define NODE_23_LOCAL(ipaddr) uip_ip6addr(ipaddr, 0xfe80, 0, 0, 0, 0x0212, 0x7400, 0x117d, 0x0d5a)