91 lines
3.1 KiB
Nim
91 lines
3.1 KiB
Nim
# compile time options here
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const
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libp2p_pubsub_sign {.booldefine.} = true
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libp2p_pubsub_verify {.booldefine.} = true
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import
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options, tables, chronos, bearssl,
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switch, peerid, peerinfo, stream/connection, multiaddress,
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crypto/crypto, transports/[transport, tcptransport],
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muxers/[muxer, mplex/mplex, mplex/types],
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protocols/[identify, secure/secure],
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protocols/pubsub/[pubsub, gossipsub, floodsub],
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protocols/pubsub/rpc/message
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import
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protocols/secure/noise,
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protocols/secure/secio
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export
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switch, peerid, peerinfo, connection, multiaddress, crypto
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type
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SecureProtocol* {.pure.} = enum
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Noise,
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Secio
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proc newStandardSwitch*(privKey = none(PrivateKey),
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address = MultiAddress.init("/ip4/127.0.0.1/tcp/0").tryGet(),
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triggerSelf = false,
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gossip = false,
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secureManagers: openarray[SecureProtocol] = [
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# array cos order matters
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SecureProtocol.Secio,
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SecureProtocol.Noise,
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],
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verifySignature = libp2p_pubsub_verify,
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sign = libp2p_pubsub_sign,
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transportFlags: set[ServerFlags] = {},
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msgIdProvider: MsgIdProvider = defaultMsgIdProvider,
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rng = newRng(),
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inTimeout: Duration = 1.minutes,
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outTimeout: Duration = 1.minutes): Switch =
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proc createMplex(conn: Connection): Muxer =
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Mplex.init(
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conn,
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inTimeout = inTimeout,
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outTimeout = outTimeout)
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if rng == nil: # newRng could fail
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raise (ref CatchableError)(msg: "Cannot initialize RNG")
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let
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seckey = privKey.get(otherwise = PrivateKey.random(ECDSA, rng[]).tryGet())
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peerInfo = PeerInfo.init(seckey, [address])
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mplexProvider = newMuxerProvider(createMplex, MplexCodec)
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transports = @[Transport(TcpTransport.init(transportFlags))]
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muxers = {MplexCodec: mplexProvider}.toTable
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identify = newIdentify(peerInfo)
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var
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secureManagerInstances: seq[Secure]
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for sec in secureManagers:
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case sec
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of SecureProtocol.Noise:
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secureManagerInstances &= newNoise(rng, seckey).Secure
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of SecureProtocol.Secio:
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secureManagerInstances &= newSecio(rng, seckey).Secure
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let pubSub = if gossip:
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newPubSub(GossipSub,
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peerInfo = peerInfo,
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triggerSelf = triggerSelf,
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verifySignature = verifySignature,
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sign = sign,
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msgIdProvider = msgIdProvider).PubSub
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else:
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newPubSub(FloodSub,
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peerInfo = peerInfo,
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triggerSelf = triggerSelf,
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verifySignature = verifySignature,
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sign = sign,
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msgIdProvider = msgIdProvider).PubSub
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newSwitch(
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peerInfo,
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transports,
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identify,
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muxers,
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secureManagers = secureManagerInstances,
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pubSub = some(pubSub))
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