Function json_preapproveinvoice

lightningd/invoice.c:1834–1882

AUTODATA(json_command, &createinvoice_command);

static struct command_result *json_preapproveinvoice(struct command *cmd,
						     const char *buffer,
						     const jsmntok_t *obj UNNEEDED,
						     const jsmntok_t *params)
{
	const char *invstring;
	struct json_stream *response;
	bool approved;
	u8 *req;
	const u8 *msg;

	if (!param_check(cmd, buffer, params,
			 /* FIXME: parameter should be invstring now */
			 p_req("bolt11", param_invstring, &invstring),
		   NULL))
		return command_param_failed();

	/* Old version didn't have `bool check_only` at end */
	if (!hsm_capable(cmd->ld, WIRE_HSMD_PREAPPROVE_INVOICE_CHECK)) {
		/* We can't just check this, so "succeed".  Log message for
		 * tests though */
		if (command_check_only(cmd)) {
			log_debug(cmd->ld->log, "hsmd too old to check preapprove");
			return command_check_done(cmd);
		}
		req = towire_hsmd_preapprove_invoice(NULL, invstring);
	} else {
		req = towire_hsmd_preapprove_invoice_check(NULL, invstring,
							   command_check_only(cmd));
	}

	msg = hsm_sync_req(tmpctx, cmd->ld, take(req));

	/* These are identical, but use separate numbers for clarity */
        if (!fromwire_hsmd_preapprove_invoice_reply(msg, &approved)
	    && !fromwire_hsmd_preapprove_invoice_check_reply(msg, &approved)) {
		return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
				    "HSM gave bad preapprove_invoice_reply %s", tal_hex(msg, msg));
	}

	if (!approved)
		return command_fail(cmd, PAY_INVOICE_PREAPPROVAL_DECLINED, "invoice was declined");

	if (command_check_only(cmd))
		return command_check_done(cmd);

	response = json_stream_success(cmd);
	return command_success(cmd, response);
}

static const struct json_command preapproveinvoice_command = {
	"preapproveinvoice",