218 lines
9.1 KiB
Nim
218 lines
9.1 KiB
Nim
# Nim-LibP2P
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# Copyright (c) 2022 Status Research & Development GmbH
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# Licensed under either of
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# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
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# * MIT license ([LICENSE-MIT](LICENSE-MIT))
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# at your option.
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# This file may not be copied, modified, or distributed except according to
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# those terms.
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{.used.}
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{.push raises: [].}
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import chronos
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import unittest2
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import ./helpers
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import ./stubs/switchstub
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import ../libp2p/[builders,
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switch,
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wire,
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services/hpservice,
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services/autorelayservice]
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import ../libp2p/protocols/connectivity/relay/[relay, client]
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import ../libp2p/protocols/connectivity/autonat/[service]
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import ../libp2p/nameresolving/[nameresolver, mockresolver]
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import stubs/autonatclientstub
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proc createSwitch(r: Relay = nil, hpService: Service = nil, nameResolver: NameResolver = nil): Switch {.raises: [LPError].} =
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var builder = SwitchBuilder.new()
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.withRng(newRng())
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.withAddresses(@[ MultiAddress.init("/ip4/0.0.0.0/tcp/0").tryGet() ])
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.withTcpTransport()
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.withMplex()
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.withAutonat()
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.withNoise()
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if hpService != nil:
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builder = builder.withServices(@[hpService])
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if r != nil:
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builder = builder.withCircuitRelay(r)
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if nameResolver != nil:
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builder = builder.withNameResolver(nameResolver)
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return builder.build()
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proc buildRelayMA(switchRelay: Switch, switchClient: Switch): MultiAddress =
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MultiAddress.init($switchRelay.peerInfo.addrs[0] & "/p2p/" &
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$switchRelay.peerInfo.peerId & "/p2p-circuit/p2p/" &
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$switchClient.peerInfo.peerId).get()
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suite "Hole Punching":
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teardown:
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checkTrackers()
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asyncTest "Direct connection must work when peer address is public":
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let autonatClientStub = AutonatClientStub.new(expectedDials = 1)
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autonatClientStub.answer = NotReachable
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let autonatService = AutonatService.new(autonatClientStub, newRng(), maxQueueSize = 1)
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let relayClient = RelayClient.new()
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let privatePeerRelayAddr = newFuture[seq[MultiAddress]]()
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let publicPeerSwitch = createSwitch(RelayClient.new())
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proc addressMapper(listenAddrs: seq[MultiAddress]): Future[seq[MultiAddress]] {.async.} =
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return @[MultiAddress.init("/dns4/localhost/").tryGet() & listenAddrs[0][1].tryGet()]
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publicPeerSwitch.peerInfo.addressMappers.add(addressMapper)
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await publicPeerSwitch.peerInfo.update()
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proc checkMA(address: seq[MultiAddress]) =
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if not privatePeerRelayAddr.completed():
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privatePeerRelayAddr.complete(address)
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let autoRelayService = AutoRelayService.new(1, relayClient, checkMA, newRng())
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let hpservice = HPService.new(autonatService, autoRelayService)
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let privatePeerSwitch = createSwitch(relayClient, hpservice, nameresolver = MockResolver.default())
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let peerSwitch = createSwitch()
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let switchRelay = createSwitch(Relay.new())
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await allFuturesThrowing(switchRelay.start(), privatePeerSwitch.start(), publicPeerSwitch.start(), peerSwitch.start())
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await privatePeerSwitch.connect(switchRelay.peerInfo.peerId, switchRelay.peerInfo.addrs)
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await privatePeerSwitch.connect(peerSwitch.peerInfo.peerId, peerSwitch.peerInfo.addrs) # for autonat
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await publicPeerSwitch.connect(privatePeerSwitch.peerInfo.peerId, (await privatePeerRelayAddr))
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checkExpiring:
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privatePeerSwitch.connManager.connCount(publicPeerSwitch.peerInfo.peerId) == 1 and
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not isRelayed(privatePeerSwitch.connManager.selectMuxer(publicPeerSwitch.peerInfo.peerId).connection)
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await allFuturesThrowing(
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privatePeerSwitch.stop(), publicPeerSwitch.stop(), switchRelay.stop(), peerSwitch.stop())
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asyncTest "Direct connection must work when peer address is public and dns is used":
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let autonatClientStub = AutonatClientStub.new(expectedDials = 1)
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autonatClientStub.answer = NotReachable
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let autonatService = AutonatService.new(autonatClientStub, newRng(), maxQueueSize = 1)
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let relayClient = RelayClient.new()
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let privatePeerRelayAddr = newFuture[seq[MultiAddress]]()
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let publicPeerSwitch = createSwitch(RelayClient.new())
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await publicPeerSwitch.setDNSAddr()
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proc checkMA(address: seq[MultiAddress]) =
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if not privatePeerRelayAddr.completed():
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privatePeerRelayAddr.complete(address)
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let autoRelayService = AutoRelayService.new(1, relayClient, checkMA, newRng())
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let hpservice = HPService.new(autonatService, autoRelayService)
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let privatePeerSwitch = createSwitch(relayClient, hpservice, nameResolver = MockResolver.default())
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let peerSwitch = createSwitch()
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let switchRelay = createSwitch(Relay.new())
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await allFuturesThrowing(switchRelay.start(), privatePeerSwitch.start(), publicPeerSwitch.start(), peerSwitch.start())
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await privatePeerSwitch.connect(switchRelay.peerInfo.peerId, switchRelay.peerInfo.addrs)
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await privatePeerSwitch.connect(peerSwitch.peerInfo.peerId, peerSwitch.peerInfo.addrs) # for autonat
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await publicPeerSwitch.connect(privatePeerSwitch.peerInfo.peerId, (await privatePeerRelayAddr))
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checkExpiring:
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privatePeerSwitch.connManager.connCount(publicPeerSwitch.peerInfo.peerId) == 1 and
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not isRelayed(privatePeerSwitch.connManager.selectMuxer(publicPeerSwitch.peerInfo.peerId).connection)
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await allFuturesThrowing(
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privatePeerSwitch.stop(), publicPeerSwitch.stop(), switchRelay.stop(), peerSwitch.stop())
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proc holePunchingTest(initiatorConnectStub: connectStubType, rcvConnectStub: connectStubType, answer: Answer) {.async.} =
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# There's no check in this test cause it can't test hole punching locally. It exists just to be sure the rest of
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# the code works properly.
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let autonatClientStub1 = AutonatClientStub.new(expectedDials = 1)
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autonatClientStub1.answer = NotReachable
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let autonatService1 = AutonatService.new(autonatClientStub1, newRng(), maxQueueSize = 1)
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let autonatClientStub2 = AutonatClientStub.new(expectedDials = 1)
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autonatClientStub2.answer = answer
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let autonatService2 = AutonatService.new(autonatClientStub2, newRng(), maxQueueSize = 1)
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let relayClient1 = RelayClient.new()
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let relayClient2 = RelayClient.new()
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let privatePeerRelayAddr1 = newFuture[seq[MultiAddress]]()
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proc checkMA(address: seq[MultiAddress]) =
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if not privatePeerRelayAddr1.completed():
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privatePeerRelayAddr1.complete(address)
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let autoRelayService1 = AutoRelayService.new(1, relayClient1, checkMA, newRng())
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let autoRelayService2 = AutoRelayService.new(1, relayClient2, nil, newRng())
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let hpservice1 = HPService.new(autonatService1, autoRelayService1)
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let hpservice2 = HPService.new(autonatService2, autoRelayService2)
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let privatePeerSwitch1 = SwitchStub.new(createSwitch(relayClient1, hpservice1, nameresolver = MockResolver.default()))
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let privatePeerSwitch2 = SwitchStub.new(createSwitch(relayClient2, hpservice2))
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await privatePeerSwitch2.setDNSAddr()
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let switchRelay = createSwitch(Relay.new())
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let switchAux = createSwitch()
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let switchAux2 = createSwitch()
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let switchAux3 = createSwitch()
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let switchAux4 = createSwitch()
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var awaiter = newFuture[void]()
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await allFuturesThrowing(
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switchRelay.start(), privatePeerSwitch1.start(), privatePeerSwitch2.start(),
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switchAux.start(), switchAux2.start(), switchAux3.start(), switchAux4.start()
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)
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await privatePeerSwitch1.connect(switchRelay.peerInfo.peerId, switchRelay.peerInfo.addrs)
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await privatePeerSwitch2.connect(switchAux.peerInfo.peerId, switchAux.peerInfo.addrs)
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await sleepAsync(200.millis)
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await privatePeerSwitch1.connect(switchAux2.peerInfo.peerId, switchAux2.peerInfo.addrs)
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await privatePeerSwitch1.connect(switchAux3.peerInfo.peerId, switchAux3.peerInfo.addrs)
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await privatePeerSwitch1.connect(switchAux4.peerInfo.peerId, switchAux4.peerInfo.addrs)
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await privatePeerSwitch2.connect(switchAux2.peerInfo.peerId, switchAux2.peerInfo.addrs)
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await privatePeerSwitch2.connect(switchAux3.peerInfo.peerId, switchAux3.peerInfo.addrs)
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await privatePeerSwitch2.connect(switchAux4.peerInfo.peerId, switchAux4.peerInfo.addrs)
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privatePeerSwitch1.connectStub = initiatorConnectStub
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await privatePeerSwitch2.connect(privatePeerSwitch1.peerInfo.peerId, (await privatePeerRelayAddr1))
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privatePeerSwitch2.connectStub = rcvConnectStub
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# wait for hole punching to finish in the background
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await sleepAsync(600.millis)
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await allFuturesThrowing(
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privatePeerSwitch1.stop(), privatePeerSwitch2.stop(), switchRelay.stop(),
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switchAux.stop(), switchAux2.stop(), switchAux3.stop(), switchAux4.stop())
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asyncTest "Hole punching when peers addresses are private":
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await holePunchingTest(nil, nil, NotReachable)
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asyncTest "Hole punching when peers addresses are private and there is an error in the initiator side":
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proc connectStub(self: SwitchStub,
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peerId: PeerId,
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addrs: seq[MultiAddress],
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forceDial = false,
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reuseConnection = true,
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dir = Direction.Out): Future[void] {.async.} =
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self.connectStub = nil # this stub should be called only once
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raise newException(CatchableError, "error")
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await holePunchingTest(connectStub, nil, Reachable)
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