grpc_credentials *grpc_compute_engine_credentials_create(void) {
grpc_oauth2_token_fetcher_credentials *c =
gpr_malloc(sizeof(grpc_oauth2_token_fetcher_credentials));
init_oauth2_token_fetcher(c, compute_engine_fetch_oauth2);
c->base.vtable = &compute_engine_vtable;
return &c->base;
}
grpc_credentials *grpc_google_compute_engine_credentials_create(
void *reserved) {
grpc_oauth2_token_fetcher_credentials *c =
gpr_malloc(sizeof(grpc_oauth2_token_fetcher_credentials));
GPR_ASSERT(reserved == NULL);
init_oauth2_token_fetcher(c, compute_engine_fetch_oauth2);
c->base.vtable = &compute_engine_vtable;
return &c->base;
}
grpc_credentials *grpc_refresh_token_credentials_create_from_auth_refresh_token(
grpc_auth_refresh_token refresh_token) {
grpc_refresh_token_credentials *c;
if (!grpc_auth_refresh_token_is_valid(&refresh_token)) {
gpr_log(GPR_ERROR, "Invalid input for refresh token credentials creation");
return NULL;
}
c = gpr_malloc(sizeof(grpc_refresh_token_credentials));
memset(c, 0, sizeof(grpc_refresh_token_credentials));
init_oauth2_token_fetcher(&c->base, refresh_token_fetch_oauth2);
c->base.base.vtable = &refresh_token_vtable;
c->refresh_token = refresh_token;
return &c->base.base;
}
grpc_credentials *grpc_service_account_credentials_create(
const char *json_key, const char *scope, gpr_timespec token_lifetime) {
grpc_service_account_credentials *c;
grpc_auth_json_key key = grpc_auth_json_key_create_from_string(json_key);
if (scope == NULL || (strlen(scope) == 0) ||
!grpc_auth_json_key_is_valid(&key)) {
gpr_log(GPR_ERROR,
"Invalid input for service account credentials creation");
return NULL;
}
c = gpr_malloc(sizeof(grpc_service_account_credentials));
memset(c, 0, sizeof(grpc_service_account_credentials));
init_oauth2_token_fetcher(&c->base, service_account_fetch_oauth2);
c->base.base.vtable = &service_account_vtable;
c->scope = gpr_strdup(scope);
c->key = key;
c->token_lifetime = token_lifetime;
return &c->base.base;
}