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#ifndef _OAUTH_H_
#define _OAUTH_H_
#include <jwt.h>
#include <stdbool.h>
#include <curl/curl.h>
#include "auxlib.h"
typedef struct {
const char *service_account_file;
const char *scope; // https://www.googleapis.com/auth/cloud-platform
const char *algorithm; // RS256
// fields below here get filled in and are private,
// but must be initialised to zero
jwt_alg_t _alg;
char *_iss; // client_email
char *_aud; // token_uri
char *_private_key; // PEM
mutex_t _lock;
char *_token;
time_t _expires;
} oauth_context_t;
char *oauth_init(oauth_context_t *);
void oauth_cleanup(oauth_context_t *);
void oauth_add_auth(struct curl_slist **headers, oauth_context_t *ctx, char **errp);
#endif
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