WIP: OffersMessageHandler impl for ChannelManager

Author: jkczyz

lightning/src/ln/channelmanager.rs

@@ -781,7 +781,7 @@ where
 
 	our_network_pubkey: PublicKey,
 
-	inbound_payment_key: inbound_payment::ExpandedKey,
+	pub(crate) inbound_payment_key: inbound_payment::ExpandedKey,
 
 	/// LDK puts the [fake scids] that it generates into namespaces, to identify the type of an
 	/// incoming payment. To make it harder for a third-party to identify the type of a payment,

lightning/src/onion_message/offers.rs

@@ -123,7 +123,16 @@ where
 	R::Target: Router,
 	L::Target: Logger,
 {
-	fn handle_message(&self, _message: OffersMessage) -> Option<OffersMessage> {
+	fn handle_message(&self, message: OffersMessage) -> Option<OffersMessage> {
+		match message {
+			OffersMessage::InvoiceRequest(invoice_request) => {
+				if invoice_request.verify(&self.inbound_payment_key) {}
+			},
+			OffersMessage::Invoice(invoice) => {
+				if invoice.verify(&self.inbound_payment_key) {}
+			},
+			OffersMessage::InvoiceError => {},
+		}
 		todo!()
 	}
 }