1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
#include <curl/curl.h>
#define TOKEN_URL "https://%s/oauth/access_token"
#define TOKEN_URL_LEN strlen(TOKEN_URL) - strlen("%s")
#define TOKEN_POST "client_id=%s&client_secret=%s&code=%s"
#define TOKEN_POST_LEN strlen(TOKEN_POST) - strlen("%s") * 3
static inline void request_init()
{
curl_global_init(CURL_GLOBAL_DEFAULT);
}
static size_t append(char *data, size_t size, size_t nmemb, char **tok)
{
size_t realsize = size * nmemb;
size_t tok_len = *tok ? strlen(*tok) : 0;
*tok = realloc(*tok, tok_len + realsize + 1);
strlcpy(&(*tok)[tok_len], data, realsize + 1);
return realsize;
}
static inline void request_token(const char *host, const char *key,
const char *secret_key, const char *code, char **tok)
{
CURL *curl = curl_easy_init();
char url[TOKEN_URL_LEN + strlen(host) + 1];
sprintf(url, TOKEN_URL, host);
curl_easy_setopt(curl, CURLOPT_URL, url);
char post[TOKEN_POST_LEN + strlen(key) + strlen(secret_key)
+ strlen(code) + 1];
sprintf(post, TOKEN_POST, key, secret_key, code);
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, post);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, tok);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, append);
#ifdef DEBUG
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
#endif
curl_easy_perform(curl);
curl_easy_cleanup(curl);
}
static inline void request_cleanup()
{
curl_global_cleanup();
}
|
