Add utility constructors to PeerHandler to use a dummy handler

diff --git a/lightning/src/ln/peer_handler.rs b/lightning/src/ln/peer_handler.rs
index bba7faaf54e751ee40b7d5bdb63d4cfbb3f780ef..b977f791389f2eadade27b0d739539f441341290 100644 (file)
--- a/lightning/src/ln/peer_handler.rs
+++ b/lightning/src/ln/peer_handler.rs
@@ -353,6 +353,44 @@ macro_rules! encode_msg {
        }}
 }
 
+impl<Descriptor: SocketDescriptor, CM: Deref, L: Deref> PeerManager<Descriptor, CM, IgnoringMessageHandler, L> where
+               CM::Target: ChannelMessageHandler,
+               L::Target: Logger {
+       /// Constructs a new PeerManager with the given ChannelMessageHandler. No routing message
+       /// handler is used and network graph messages are ignored.
+       ///
+       /// ephemeral_random_data is used to derive per-connection ephemeral keys and must be
+       /// cryptographically secure random bytes.
+       ///
+       /// (C-not exported) as we can't export a PeerManager with a dummy route handler
+       pub fn new_channel_only(channel_message_handler: CM, our_node_secret: SecretKey, ephemeral_random_data: &[u8; 32], logger: L) -> Self {
+               Self::new(MessageHandler {
+                       chan_handler: channel_message_handler,
+                       route_handler: IgnoringMessageHandler{},
+               }, our_node_secret, ephemeral_random_data, logger)
+       }
+}
+
+impl<Descriptor: SocketDescriptor, RM: Deref, L: Deref> PeerManager<Descriptor, ErroringMessageHandler, RM, L> where
+               RM::Target: RoutingMessageHandler,
+               L::Target: Logger {
+       /// Constructs a new PeerManager with the given RoutingMessageHandler. No channel message
+       /// handler is used and messages related to channels will be ignored (or generate error
+       /// messages). Note that some other lightning implementations time-out connections after some
+       /// time if no channel is built with the peer.
+       ///
+       /// ephemeral_random_data is used to derive per-connection ephemeral keys and must be
+       /// cryptographically secure random bytes.
+       ///
+       /// (C-not exported) as we can't export a PeerManager with a dummy channel handler
+       pub fn new_routing_only(routing_message_handler: RM, our_node_secret: SecretKey, ephemeral_random_data: &[u8; 32], logger: L) -> Self {
+               Self::new(MessageHandler {
+                       chan_handler: ErroringMessageHandler::new(),
+                       route_handler: routing_message_handler,
+               }, our_node_secret, ephemeral_random_data, logger)
+       }
+}
+
 /// Manages and reacts to connection events. You probably want to use file descriptors as PeerIds.
 /// PeerIds may repeat, but only after socket_disconnected() has been called.
 impl<Descriptor: SocketDescriptor, CM: Deref, RM: Deref, L: Deref> PeerManager<Descriptor, CM, RM, L> where