mirror of https://github.com/waku-org/nwaku.git
99 lines
2.8 KiB
Nim
99 lines
2.8 KiB
Nim
## Waku on libp2p
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##
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## This file should eventually correspond to waku_protocol as RLPx subprotocol.
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## Instead, it should likely be on top of GossipSub with a similar interface.
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import
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chronos, chronicles, metrics,
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libp2p/protocols/pubsub/[pubsub, floodsub, gossipsub],
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libp2p/protocols/pubsub/rpc/messages,
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libp2p/stream/connection,
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../waku_types
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declarePublicGauge total_messages, "number of messages received"
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logScope:
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topics = "wakurelay"
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const WakuRelayCodec* = "/vac/waku/relay/2.0.0-beta1"
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method init*(w: WakuRelay) =
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debug "init"
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proc handler(conn: Connection, proto: string) {.async.} =
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## main protocol handler that gets triggered on every
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## connection for a protocol string
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## e.g. ``/wakusub/0.0.1``, etc...
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##
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debug "Incoming WakuRelay connection"
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await w.handleConn(conn, proto)
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# XXX: Handler hijack GossipSub here?
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w.handler = handler
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w.codec = WakuRelayCodec
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method initPubSub*(w: WakuRelay) =
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debug "initWakuRelay"
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# Not using GossipSub
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# XXX: FloodSub subscribe doesn't work
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w.gossipEnabled = true
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if w.gossipEnabled:
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procCall GossipSub(w).initPubSub()
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else:
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procCall FloodSub(w).initPubSub()
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w.init()
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method subscribe*(w: WakuRelay,
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pubSubTopic: string,
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handler: TopicHandler) {.async.} =
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debug "subscribe", pubSubTopic=pubSubTopic
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if w.gossipEnabled:
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await procCall GossipSub(w).subscribe(pubSubTopic, handler)
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else:
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await procCall FloodSub(w).subscribe(pubSubTopic, handler)
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method publish*(w: WakuRelay,
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pubSubTopic: string,
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message: seq[byte]
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): Future[int] {.async.} =
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debug "publish", pubSubTopic=pubSubTopic, message=message
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if w.gossipEnabled:
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return await procCall GossipSub(w).publish(pubSubTopic, message)
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else:
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return await procCall FloodSub(w).publish(pubSubTopic, message)
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method unsubscribe*(w: WakuRelay,
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topics: seq[TopicPair]) {.async.} =
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debug "unsubscribe"
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if w.gossipEnabled:
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await procCall GossipSub(w).unsubscribe(topics)
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else:
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await procCall FloodSub(w).unsubscribe(topics)
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method unsubscribeAll*(w: WakuRelay,
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pubSubTopic: string) {.async.} =
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debug "unsubscribeAll"
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if w.gossipEnabled:
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await procCall GossipSub(w).unsubscribeAll(pubSubTopic)
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else:
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await procCall FloodSub(w).unsubscribeAll(pubSubTopic)
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# GossipSub specific methods --------------------------------------------------
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method start*(w: WakuRelay) {.async.} =
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debug "start"
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if w.gossipEnabled:
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await procCall GossipSub(w).start()
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else:
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await procCall FloodSub(w).start()
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method stop*(w: WakuRelay) {.async.} =
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debug "stop"
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if w.gossipEnabled:
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await procCall GossipSub(w).stop()
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else:
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await procCall FloodSub(w).stop()
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