Function json_preapprovekeysend

lightningd/invoice.c:1890–1940

AUTODATA(json_command, &preapproveinvoice_command);

static struct command_result *json_preapprovekeysend(struct command *cmd,
						     const char *buffer,
						     const jsmntok_t *obj UNNEEDED,
						     const jsmntok_t *params)
{
	struct node_id *destination;
	struct sha256 *payment_hash;
	struct amount_msat *amount;
	struct json_stream *response;
	bool approved;
	const u8 *msg;
	u8 *req;

	if (!param_check(cmd, buffer, params,
			 p_req("destination", param_node_id, &destination),
			 p_req("payment_hash", param_sha256, &payment_hash),
			 p_req("amount_msat", param_msat, &amount),
			 NULL))
		return command_param_failed();

	if (!hsm_capable(cmd->ld, WIRE_HSMD_PREAPPROVE_KEYSEND_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_keysend(NULL, destination, payment_hash, *amount);
	} else {
		req = towire_hsmd_preapprove_keysend_check(NULL, destination, payment_hash,
							   *amount, 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_keysend_reply(msg, &approved)
	    && !fromwire_hsmd_preapprove_keysend_check_reply(msg, &approved)) {
		return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
				    "HSM gave bad preapprove_keysend_reply %s", tal_hex(msg, msg));
	}

	if (!approved)
		return command_fail(cmd, PAY_KEYSEND_PREAPPROVAL_DECLINED, "keysend 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 preapprovekeysend_command = {
	"preapprovekeysend",