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#ifdef DEBUG
#include <stdio.h>
#endif
#include <string.h>
#include <json.h>
#include "private.h"
CURL *curl;
json_tokener *tokener;
struct shipping shipping;
const char **anteraja_init(char *[]);
const char **anteraja_services(const char *, const char *, double);
void anteraja_order(const char *, const char *, const char *, const char *, const char *, const char *,
const char *, const char *, const char *, const char *, const char *, const char *, int,
char **[], double);
void anteraja_cleanup();
const char **sicepat_init(char *[]);
const char **sicepat_services(const char *, const char *, double);
static void recurse(struct json_object *outer, const char *trail[], struct json_object **last)
{
struct json_object *inner = NULL;
json_object_object_get_ex(outer, *trail, &inner);
if (*++trail)
recurse(inner, trail, last);
else
*last = inner;
}
static size_t handle(char *contents, size_t size, size_t nmemb, void *data)
{
size_t realsize = size * nmemb;
#ifdef DEBUG
contents[realsize] = '\0';
fprintf(stderr, "%s\n", contents);
#endif
json_object *response = json_tokener_parse_ex(tokener, contents, realsize);
enum json_tokener_error error = json_tokener_get_error(tokener);
if (!response) {
if (error == json_tokener_continue)
return realsize;
else {
json_tokener_reset(tokener);
return realsize;
}
} else if (!json_object_is_type(response, json_type_object) || error != json_tokener_success)
return realsize;
struct json_object *status = NULL;
recurse(response, shipping.status_trail, &status);
if (json_object_get_int(status) != 200)
return realsize;
switch (shipping.mode) {
case SERVICES:
;
struct json_object *array = NULL;
recurse(response, shipping.trail, &array);
size_t length = json_object_array_length(array);
shipping.data = malloc(sizeof(struct pikul_services)
+ sizeof(struct pikul_service *[length]));
struct pikul_services *services = (struct pikul_services *)shipping.data;
services->length = length;
const char **attributes = (const char **)data;
enum { CODE, NAME, ETD, COST };
for (size_t i = 0; i < length; i++) {
services->list[i] = malloc(sizeof(struct pikul_service));
struct pikul_service *service = services->list[i];
json_object *object = json_object_array_get_idx(array, i);
struct json_object_iterator iterator = json_object_iter_begin(object);
struct json_object_iterator iterator_end = json_object_iter_end(object);
while (!json_object_iter_equal(&iterator, &iterator_end)) {
const char *name = json_object_iter_peek_name(&iterator);
json_object *value = json_object_iter_peek_value(&iterator);
if (!strcmp(name, attributes[COST]))
service->cost = json_object_get_double(value);
else {
int len = json_object_get_string_len(value);
if (len) {
char *string = malloc(len + 1);
strcpy(string, json_object_get_string(value));
if (!strcmp(name, attributes[CODE]))
service->code = string;
else if (!strcmp(name, attributes[NAME]))
service->name = string;
else if (!strcmp(name, attributes[ETD]))
service->etd = string;
}
}
json_object_iter_next(&iterator);
}
}
break;
case ORDER:
;
struct json_object *string = NULL;
recurse(response, shipping.trail, &string);
shipping.data = malloc(json_object_get_string_len(string) + 1);
strcpy(shipping.data, json_object_get_string(string));
break;
default:
break;
}
return realsize;
}
void pikul_init(enum pikul_company company, char *provisions[])
{
curl_global_init(CURL_GLOBAL_SSL);
curl = curl_easy_init();
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, handle);
#ifdef DEBUG
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
#endif
shipping.company = company;
shipping.headers = NULL;
const char **fields;
switch (company) {
case PIKUL_ANTERAJA:
fields = anteraja_init(provisions);
break;
case PIKUL_SICEPAT:
fields = sicepat_init(provisions);
break;
default:
break;
}
while (*fields) {
char header[strlen(*fields) + strlen(":") + strlen(*provisions) + 1];
sprintf(header, "%s:%s", *fields++, *provisions++);
shipping.headers = curl_slist_append(shipping.headers, header);
}
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, shipping.headers);
tokener = json_tokener_new();
}
struct pikul_services *pikul_services(const char *origin, const char *destination, double weight)
{
shipping.post = NULL;
const char **attributes;
switch (shipping.company) {
case PIKUL_ANTERAJA:
attributes = anteraja_services(origin, destination, weight);
break;
case PIKUL_SICEPAT:
attributes = sicepat_services(origin, destination, weight);
break;
default:
break;
}
curl_easy_setopt(curl, CURLOPT_URL, shipping.url);
if (shipping.post)
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, shipping.post);
else
curl_easy_setopt(curl, CURLOPT_HTTPGET, 1L);
shipping.mode = SERVICES;
curl_easy_setopt(curl, CURLOPT_WRITEDATA, attributes);
curl_easy_perform(curl);
if (shipping.post)
free(shipping.post);
free(shipping.url);
return (struct pikul_services *)shipping.data;
}
static inline void free_service(struct pikul_service *service)
{
if (service->etd)
free(service->etd);
if (service->name)
free(service->name);
free(service->code);
free(service);
}
void pikul_free_services(struct pikul_services *services)
{
for (size_t i = 0; i < services->length; i++)
free_service(services->list[i]);
free(services);
}
static int servicecmp(const void *service1, const void *service2)
{
return strcmp((*(struct pikul_service * const *)service1)->code,
(*(struct pikul_service * const *)service2)->code);
}
double pikul_cost(const char *origin, const char *destination, double weight, const char *code)
{
struct pikul_services *services = pikul_services(origin, destination, weight);
if (!services || !services->length)
return .0;
qsort(services->list, services->length, sizeof(struct pikul_service *), servicecmp);
struct pikul_service *key_service = malloc(sizeof(struct pikul_service));
memset(key_service, '\0', sizeof(struct pikul_service));
key_service->code = malloc(strlen(code) + 1);
strcpy(key_service->code, code);
double cost = (*(struct pikul_service **)bsearch(&key_service, services->list,
services->length, sizeof(struct pikul_service *), servicecmp))->cost;
free_service(key_service);
pikul_free_services(services);
return cost;
}
char *pikul_order(const char *order_number, const char *service, const char *sender_name,
const char *sender_phone, const char *origin, const char *sender_address,
const char *sender_postal, const char *receiver_name, const char *receiver_phone,
const char *destination, const char *receiver_address, const char *receiver_postal,
int nitems, char **items[], double subtotal)
{
shipping.post = NULL;
switch (shipping.company) {
case PIKUL_ANTERAJA:
anteraja_order(order_number, service, sender_name, sender_phone, origin,
sender_address, sender_postal, receiver_name, receiver_phone,
destination, receiver_address, receiver_postal, nitems, items,
subtotal);
break;
default:
break;
}
curl_easy_setopt(curl, CURLOPT_URL, shipping.url);
if (shipping.post)
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, shipping.post);
else
curl_easy_setopt(curl, CURLOPT_HTTPGET, 1L);
shipping.mode = ORDER;
curl_easy_perform(curl);
if (shipping.post)
free(shipping.post);
free(shipping.url);
return (char *)shipping.data;
}
void pikul_cleanup()
{
switch (shipping.company) {
case PIKUL_ANTERAJA:
anteraja_cleanup();
break;
default:
break;
}
free(shipping.base);
json_tokener_free(tokener);
curl_slist_free_all(shipping.headers);
curl_easy_cleanup(curl);
curl_global_cleanup();
}
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