static void oauth2_token_fetcher_get_request_metadata(
grpc_credentials *creds, grpc_pollset *pollset, const char *service_url,
grpc_credentials_metadata_cb cb, void *user_data) {
grpc_oauth2_token_fetcher_credentials *c =
(grpc_oauth2_token_fetcher_credentials *)creds;
gpr_timespec refresh_threshold = {GRPC_SECURE_TOKEN_REFRESH_THRESHOLD_SECS,
0};
grpc_credentials_md_store *cached_access_token_md = NULL;
{
gpr_mu_lock(&c->mu);
if (c->access_token_md != NULL &&
(gpr_time_cmp(
gpr_time_sub(c->token_expiration, gpr_now(GPR_CLOCK_REALTIME)),
refresh_threshold) > 0)) {
cached_access_token_md =
grpc_credentials_md_store_ref(c->access_token_md);
}
gpr_mu_unlock(&c->mu);
}
if (cached_access_token_md != NULL) {
cb(user_data, cached_access_token_md->entries,
cached_access_token_md->num_entries, GRPC_CREDENTIALS_OK);
grpc_credentials_md_store_unref(cached_access_token_md);
} else {
c->fetch_func(
grpc_credentials_metadata_request_create(creds, cb, user_data),
&c->httpcli_context, pollset, on_oauth2_token_fetcher_http_response,
gpr_time_add(gpr_now(GPR_CLOCK_REALTIME), refresh_threshold));
}
}
static void oauth2_token_fetcher_get_request_metadata(
grpc_credentials *creds, const char *service_url,
grpc_credentials_metadata_cb cb, void *user_data) {
grpc_oauth2_token_fetcher_credentials *c =
(grpc_oauth2_token_fetcher_credentials *)creds;
gpr_timespec refresh_threshold = {GRPC_SECURE_TOKEN_REFRESH_THRESHOLD_SECS,
0};
grpc_mdelem *cached_access_token_md = NULL;
{
gpr_mu_lock(&c->mu);
if (c->access_token_md != NULL &&
(gpr_time_cmp(gpr_time_sub(c->token_expiration, gpr_now()),
refresh_threshold) > 0)) {
cached_access_token_md = grpc_mdelem_ref(c->access_token_md);
}
gpr_mu_unlock(&c->mu);
}
if (cached_access_token_md != NULL) {
cb(user_data, &cached_access_token_md, 1, GRPC_CREDENTIALS_OK);
grpc_mdelem_unref(cached_access_token_md);
} else {
c->fetch_func(
grpc_credentials_metadata_request_create(creds, cb, user_data),
on_oauth2_token_fetcher_http_response,
gpr_time_add(gpr_now(), refresh_threshold));
}
}
static void md_only_test_get_request_metadata(
grpc_exec_ctx *exec_ctx, grpc_credentials *creds, grpc_pollset *pollset,
const char *service_url, grpc_credentials_metadata_cb cb, void *user_data) {
grpc_md_only_test_credentials *c = (grpc_md_only_test_credentials *)creds;
if (c->is_async) {
gpr_thd_id thd_id;
grpc_credentials_metadata_request *cb_arg =
grpc_credentials_metadata_request_create(creds, cb, user_data);
gpr_thd_new(&thd_id, on_simulated_token_fetch_done, cb_arg, NULL);
} else {
cb(exec_ctx, user_data, c->md_store->entries, 1, GRPC_CREDENTIALS_OK);
}
}
static void fake_oauth2_get_request_metadata(grpc_credentials *creds,
const char *service_url,
grpc_credentials_metadata_cb cb,
void *user_data) {
grpc_fake_oauth2_credentials *c = (grpc_fake_oauth2_credentials *)creds;
if (c->is_async) {
grpc_iomgr_add_callback(
on_simulated_token_fetch_done,
grpc_credentials_metadata_request_create(creds, cb, user_data));
} else {
cb(user_data, &c->access_token_md, 1, GRPC_CREDENTIALS_OK);
}
}
static void md_only_test_get_request_metadata(
grpc_exec_ctx *exec_ctx, grpc_call_credentials *creds,
grpc_pollset *pollset, grpc_auth_metadata_context context,
grpc_credentials_metadata_cb cb, void *user_data) {
grpc_md_only_test_credentials *c = (grpc_md_only_test_credentials *)creds;
if (c->is_async) {
grpc_credentials_metadata_request *cb_arg =
grpc_credentials_metadata_request_create(creds, cb, user_data);
grpc_executor_enqueue(
grpc_closure_create(on_simulated_token_fetch_done, cb_arg), 1);
} else {
cb(exec_ctx, user_data, c->md_store->entries, 1, GRPC_CREDENTIALS_OK);
}
}
static void fake_oauth2_get_request_metadata(grpc_credentials *creds,
const char *service_url,
grpc_credentials_metadata_cb cb,
void *user_data) {
grpc_fake_oauth2_credentials *c = (grpc_fake_oauth2_credentials *)creds;
if (c->is_async) {
grpc_credentials_metadata_request *cb_arg =
grpc_credentials_metadata_request_create(creds, cb, user_data);
grpc_iomgr_closure_init(cb_arg->on_simulated_token_fetch_done_closure,
on_simulated_token_fetch_done, cb_arg);
grpc_iomgr_add_callback(cb_arg->on_simulated_token_fetch_done_closure);
} else {
cb(user_data, c->access_token_md->entries, 1, GRPC_CREDENTIALS_OK);
}
}