Function rbf_channel_hook_deserialize

lightningd/dual_open_control.c:559–646

static bool
rbf_channel_hook_deserialize(struct rbf_channel_payload *payload,
			     const char *buffer,
			     const jsmntok_t *toks)
{
	struct subd *dualopend = payload->dualopend;
	struct channel *channel = payload->channel;

	if (!dualopend) {
		rbf_channel_hook_cb(payload);
		return false;
	}

	/* FIXME: move to new json extraction */
	const jsmntok_t *t_result = json_get_member(buffer, toks, "result");
	if (!t_result)
		fatal("Plugin returned an invalid response to the"
		      " rbf_channel hook: %.*s",
		      json_tok_full_len(toks),
		      json_tok_full(buffer, toks));

	if (json_tok_streq(buffer, t_result, "reject")) {
		if (json_get_member(buffer, toks, "psbt"))
			fatal("Plugin rejected rbf_channel but"
			      " also set `psbt`");
		if (json_get_member(buffer, toks, "our_funding_msat"))
			fatal("Plugin rejected rbf_channel but"
			      " also set `our_funding_msat`");

		const jsmntok_t *t_errmsg = json_get_member(buffer, toks,
							    "error_message");
		if (t_errmsg)
			payload->err_msg = json_strdup(payload, buffer,
						       t_errmsg);
		else
			payload->err_msg = "";

		rbf_channel_hook_cb(payload);
		return false;
	} else if (!json_tok_streq(buffer, t_result, "continue"))
		fatal("Plugin returned invalid response to rbf_channel hook:"
		      " %.*s", json_tok_full_len(toks),
		      json_tok_full(buffer, toks));

	if (!hook_extract_psbt(payload, dualopend, buffer, toks,
			       "rbf_channel", true, &payload->psbt))
		return false;

	if (payload->psbt) {
		enum tx_role our_role = channel->opener == LOCAL ?
					TX_INITIATOR : TX_ACCEPTER;
		psbt_add_serials(payload->psbt, our_role);
	}

	/* We require the PSBT to meet certain criteria such as
	 * extra, proprietary fields (`serial_id`s) or
	 * to have a `redeemscripts` iff the inputs are P2SH.
	 *