760 lines
26 KiB
Nim
760 lines
26 KiB
Nim
## Nim-LibP2P
|
|
## Copyright (c) 2019 Status Research & Development GmbH
|
|
## Licensed under either of
|
|
## * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
|
|
## * MIT license ([LICENSE-MIT](LICENSE-MIT))
|
|
## at your option.
|
|
## This file may not be copied, modified, or distributed except according to
|
|
## those terms.
|
|
|
|
import tables, sets, options, sequtils, random
|
|
import chronos, chronicles
|
|
import pubsub,
|
|
floodsub,
|
|
pubsubpeer,
|
|
mcache,
|
|
timedcache,
|
|
rpc/[messages, message],
|
|
../../crypto/crypto,
|
|
../protocol,
|
|
../../peerinfo,
|
|
../../connection,
|
|
../../peer
|
|
|
|
logScope:
|
|
topic = "GossipSub"
|
|
|
|
const GossipSubCodec* = "/meshsub/1.0.0"
|
|
|
|
# overlay parameters
|
|
const GossipSubD* = 6
|
|
const GossipSubDlo* = 4
|
|
const GossipSubDhi* = 12
|
|
|
|
# gossip parameters
|
|
const GossipSubHistoryLength* = 5
|
|
const GossipSubHistoryGossip* = 3
|
|
|
|
# heartbeat interval
|
|
const GossipSubHeartbeatInitialDelay* = 100.millis
|
|
const GossipSubHeartbeatInterval* = 1.seconds
|
|
|
|
# fanout ttl
|
|
const GossipSubFanoutTTL* = 1.minutes
|
|
|
|
type
|
|
GossipSub* = ref object of FloodSub
|
|
mesh*: Table[string, HashSet[string]] # meshes - topic to peer
|
|
fanout*: Table[string, HashSet[string]] # fanout - topic to peer
|
|
gossipsub*: Table[string, HashSet[string]] # topic to peer map of all gossipsub peers
|
|
lastFanoutPubSub*: Table[string, Moment] # last publish time for fanout topics
|
|
gossip*: Table[string, seq[ControlIHave]] # pending gossip
|
|
control*: Table[string, ControlMessage] # pending control messages
|
|
mcache*: MCache # messages cache
|
|
heartbeatCancel*: Future[void] # cancelation future for heartbeat interval
|
|
heartbeatLock: AsyncLock # hearbeat lock to prevent two concecutive concurent hearbeats
|
|
|
|
# TODO: This belong in chronos, temporary left here until chronos is updated
|
|
proc addInterval(every: Duration, cb: CallbackFunc,
|
|
udata: pointer = nil): Future[void] =
|
|
## Arrange the callback ``cb`` to be called on every ``Duration`` window
|
|
|
|
var retFuture = newFuture[void]("chronos.addInterval(Duration)")
|
|
proc interval(arg: pointer = nil) {.gcsafe.}
|
|
proc scheduleNext() =
|
|
if not retFuture.finished():
|
|
addTimer(Moment.fromNow(every), interval)
|
|
|
|
proc interval(arg: pointer = nil) {.gcsafe.} =
|
|
cb(udata)
|
|
scheduleNext()
|
|
|
|
scheduleNext()
|
|
return retFuture
|
|
|
|
method init(g: GossipSub) =
|
|
proc handler(conn: Connection, proto: string) {.async.} =
|
|
## main protocol handler that gets triggered on every
|
|
## connection for a protocol string
|
|
## e.g. ``/floodsub/1.0.0``, etc...
|
|
##
|
|
|
|
await g.handleConn(conn, proto)
|
|
|
|
g.handler = handler
|
|
g.codec = GossipSubCodec
|
|
|
|
method handleDisconnect(g: GossipSub, peer: PubSubPeer) {.async.} =
|
|
## handle peer disconnects
|
|
await procCall FloodSub(g).handleDisconnect(peer)
|
|
for t in g.gossipsub.keys:
|
|
g.gossipsub[t].excl(peer.id)
|
|
|
|
for t in g.mesh.keys:
|
|
g.mesh[t].excl(peer.id)
|
|
|
|
for t in g.fanout.keys:
|
|
g.fanout[t].excl(peer.id)
|
|
|
|
method subscribeTopic*(g: GossipSub,
|
|
topic: string,
|
|
subscribe: bool,
|
|
peerId: string) {.gcsafe.} =
|
|
procCall PubSub(g).subscribeTopic(topic, subscribe, peerId)
|
|
|
|
if topic notin g.gossipsub:
|
|
g.gossipsub[topic] = initHashSet[string]()
|
|
|
|
if subscribe:
|
|
trace "adding subscription for topic", peer = peerId, name = topic
|
|
# subscribe the peer to the topic
|
|
g.gossipsub[topic].incl(peerId)
|
|
else:
|
|
trace "removing subscription for topic", peer = peerId, name = topic
|
|
# unsubscribe the peer from the topic
|
|
g.gossipsub[topic].excl(peerId)
|
|
|
|
proc handleGraft(g: GossipSub,
|
|
peer: PubSubPeer,
|
|
grafts: seq[ControlGraft],
|
|
respControl: var ControlMessage) =
|
|
for graft in grafts:
|
|
trace "processing graft message", peer = peer.id,
|
|
topicID = graft.topicID
|
|
|
|
if graft.topicID in g.topics:
|
|
if g.mesh.len < GossipSubD:
|
|
g.mesh[graft.topicID].incl(peer.id)
|
|
else:
|
|
g.gossipsub[graft.topicID].incl(peer.id)
|
|
else:
|
|
respControl.prune.add(ControlPrune(topicID: graft.topicID))
|
|
|
|
proc handlePrune(g: GossipSub, peer: PubSubPeer, prunes: seq[ControlPrune]) =
|
|
for prune in prunes:
|
|
trace "processing prune message", peer = peer.id,
|
|
topicID = prune.topicID
|
|
|
|
if prune.topicID in g.mesh:
|
|
g.mesh[prune.topicID].excl(peer.id)
|
|
|
|
proc handleIHave(g: GossipSub, peer: PubSubPeer, ihaves: seq[
|
|
ControlIHave]): ControlIWant =
|
|
for ihave in ihaves:
|
|
trace "processing ihave message", peer = peer.id,
|
|
topicID = ihave.topicID
|
|
|
|
if ihave.topicID in g.mesh:
|
|
for m in ihave.messageIDs:
|
|
if m notin g.seen:
|
|
result.messageIDs.add(m)
|
|
|
|
proc handleIWant(g: GossipSub, peer: PubSubPeer, iwants: seq[
|
|
ControlIWant]): seq[Message] =
|
|
for iwant in iwants:
|
|
for mid in iwant.messageIDs:
|
|
trace "processing iwant message", peer = peer.id,
|
|
messageID = mid
|
|
let msg = g.mcache.get(mid)
|
|
if msg.isSome:
|
|
result.add(msg.get())
|
|
|
|
method rpcHandler(g: GossipSub,
|
|
peer: PubSubPeer,
|
|
rpcMsgs: seq[RPCMsg]) {.async.} =
|
|
await procCall PubSub(g).rpcHandler(peer, rpcMsgs)
|
|
|
|
for m in rpcMsgs: # for all RPC messages
|
|
if m.messages.len > 0: # if there are any messages
|
|
var toSendPeers: HashSet[string] = initHashSet[string]()
|
|
for msg in m.messages: # for every message
|
|
trace "processing message with id", msg = msg.msgId
|
|
if msg.msgId in g.seen:
|
|
trace "message already processed, skipping", msg = msg.msgId
|
|
continue
|
|
|
|
g.seen.put(msg.msgId) # add the message to the seen cache
|
|
|
|
if not msg.verify(peer.peerInfo):
|
|
trace "dropping message due to failed signature verification"
|
|
continue
|
|
|
|
if not (await g.validate(msg)):
|
|
trace "dropping message due to failed validation"
|
|
continue
|
|
|
|
# this shouldn't happen
|
|
if g.peerInfo.peerId == msg.fromPeerId():
|
|
trace "skipping messages from self", msg = msg.msgId
|
|
continue
|
|
|
|
for t in msg.topicIDs: # for every topic in the message
|
|
|
|
if t in g.floodsub:
|
|
toSendPeers.incl(g.floodsub[t]) # get all floodsub peers for topic
|
|
|
|
if t in g.mesh:
|
|
toSendPeers.incl(g.mesh[t]) # get all mesh peers for topic
|
|
|
|
if t in g.topics: # if we're subscribed to the topic
|
|
for h in g.topics[t].handler:
|
|
trace "calling handler for message", msg = msg.msgId,
|
|
topicId = t,
|
|
localPeer = g.peerInfo.id,
|
|
fromPeer = msg.fromPeerId().pretty
|
|
await h(t, msg.data) # trigger user provided handler
|
|
|
|
# forward the message to all peers interested in it
|
|
for p in toSendPeers:
|
|
if p in g.peers:
|
|
let id = g.peers[p].peerInfo.peerId
|
|
trace "about to forward message to peer", peerId = id
|
|
|
|
if id != peer.peerInfo.peerId:
|
|
let msgs = m.messages.filterIt(
|
|
# don't forward to message originator
|
|
id != it.fromPeerId()
|
|
)
|
|
|
|
var sent: seq[Future[void]]
|
|
if msgs.len > 0:
|
|
trace "forwarding message to", peerId = id
|
|
sent.add(g.peers[p].send(@[RPCMsg(messages: msgs)]))
|
|
await allFutures(sent)
|
|
|
|
var respControl: ControlMessage
|
|
if m.control.isSome:
|
|
var control: ControlMessage = m.control.get()
|
|
let iWant: ControlIWant = g.handleIHave(peer, control.ihave)
|
|
if iWant.messageIDs.len > 0:
|
|
respControl.iwant.add(iWant)
|
|
let messages: seq[Message] = g.handleIWant(peer, control.iwant)
|
|
|
|
g.handleGraft(peer, control.graft, respControl)
|
|
g.handlePrune(peer, control.prune)
|
|
|
|
if respControl.graft.len > 0 or respControl.prune.len > 0 or
|
|
respControl.ihave.len > 0 or respControl.iwant.len > 0:
|
|
await peer.send(@[RPCMsg(control: some(respControl), messages: messages)])
|
|
|
|
proc replenishFanout(g: GossipSub, topic: string) {.async.} =
|
|
## get fanout peers for a topic
|
|
trace "about to replenish fanout"
|
|
if topic notin g.fanout:
|
|
g.fanout[topic] = initHashSet[string]()
|
|
|
|
if g.fanout[topic].len < GossipSubDLo:
|
|
trace "replenishing fanout", peers = g.fanout[topic].len
|
|
if topic in g.gossipsub:
|
|
for p in g.gossipsub[topic]:
|
|
if not g.fanout[topic].containsOrIncl(p):
|
|
if g.fanout[topic].len == GossipSubD:
|
|
break
|
|
|
|
trace "fanout replenished with peers", peers = g.fanout[topic].len
|
|
|
|
proc rebalanceMesh(g: GossipSub, topic: string) {.async.} =
|
|
trace "about to rebalance mesh"
|
|
# create a mesh topic that we're subscribing to
|
|
if topic notin g.mesh:
|
|
g.mesh[topic] = initHashSet[string]()
|
|
|
|
if g.mesh[topic].len < GossipSubDlo:
|
|
trace "replenishing mesh"
|
|
# replenish the mesh if we're bellow GossipSubDlo
|
|
while g.mesh[topic].len < GossipSubD:
|
|
trace "gattering peers", peers = g.mesh[topic].len
|
|
var id: string
|
|
if topic in g.fanout and g.fanout[topic].len > 0:
|
|
id = g.fanout[topic].pop()
|
|
trace "got fanout peer", peer = id
|
|
elif topic in g.gossipsub and g.gossipsub[topic].len > 0:
|
|
id = g.gossipsub[topic].pop()
|
|
trace "got gossipsub peer", peer = id
|
|
else:
|
|
trace "no more peers"
|
|
break
|
|
|
|
g.mesh[topic].incl(id)
|
|
if id in g.peers:
|
|
let p = g.peers[id]
|
|
# send a graft message to the peer
|
|
await p.sendGraft(@[topic])
|
|
|
|
# prune peers if we've gone over
|
|
if g.mesh[topic].len > GossipSubDhi:
|
|
trace "pruning mesh"
|
|
while g.mesh[topic].len > GossipSubD:
|
|
trace "pruning peers", peers = g.mesh[topic].len
|
|
let id = toSeq(g.mesh[topic])[rand(0..<g.mesh[topic].len)]
|
|
g.mesh[topic].excl(id)
|
|
|
|
let p = g.peers[id]
|
|
# send a graft message to the peer
|
|
await p.sendPrune(@[topic])
|
|
|
|
trace "mesh balanced, got peers", peers = g.mesh[topic].len
|
|
|
|
proc dropFanoutPeers(g: GossipSub) {.async.} =
|
|
# drop peers that we haven't published to in
|
|
# GossipSubFanoutTTL seconds
|
|
for topic in g.lastFanoutPubSub.keys:
|
|
if Moment.now > g.lastFanoutPubSub[topic]:
|
|
g.lastFanoutPubSub.del(topic)
|
|
g.fanout.del(topic)
|
|
|
|
proc getGossipPeers(g: GossipSub): Table[string, ControlMessage] {.gcsafe.} =
|
|
## gossip iHave messages to peers
|
|
let topics = toHashSet(toSeq(g.mesh.keys)) + toHashSet(toSeq(g.fanout.keys))
|
|
|
|
for topic in topics:
|
|
let mesh: HashSet[string] =
|
|
if topic in g.mesh:
|
|
g.mesh[topic]
|
|
else:
|
|
initHashSet[string]()
|
|
|
|
let fanout: HashSet[string] =
|
|
if topic in g.fanout:
|
|
g.fanout[topic]
|
|
else:
|
|
initHashSet[string]()
|
|
|
|
let gossipPeers = mesh + fanout
|
|
let mids = g.mcache.window(topic)
|
|
let ihave = ControlIHave(topicID: topic,
|
|
messageIDs: toSeq(mids))
|
|
|
|
if topic notin g.gossipsub:
|
|
trace "topic not in gossip array, skipping", topicID = topic
|
|
continue
|
|
|
|
while result.len < GossipSubD:
|
|
if not (g.gossipsub[topic].len > 0):
|
|
trace "no peers for topic, skipping", topicID = topic
|
|
break
|
|
|
|
let id = toSeq(g.gossipsub[topic]).sample()
|
|
g.gossipsub[topic].excl(id)
|
|
if id notin gossipPeers:
|
|
if id notin result:
|
|
result[id] = ControlMessage()
|
|
result[id].ihave.add(ihave)
|
|
|
|
proc heartbeat(g: GossipSub) {.async.} =
|
|
await g.heartbeatLock.acquire()
|
|
trace "running heartbeat"
|
|
|
|
await sleepAsync(GossipSubHeartbeatInitialDelay)
|
|
|
|
for t in g.mesh.keys:
|
|
await g.rebalanceMesh(t)
|
|
|
|
await g.dropFanoutPeers()
|
|
let peers = g.getGossipPeers()
|
|
for peer in peers.keys:
|
|
await g.peers[peer].send(@[RPCMsg(control: some(peers[peer]))])
|
|
|
|
g.mcache.shift() # shift the cache
|
|
g.heartbeatLock.release()
|
|
|
|
method subscribe*(g: GossipSub,
|
|
topic: string,
|
|
handler: TopicHandler) {.async.} =
|
|
await procCall PubSub(g).subscribe(topic, handler)
|
|
asyncCheck g.rebalanceMesh(topic)
|
|
|
|
method unsubscribe*(g: GossipSub,
|
|
topics: seq[TopicPair]) {.async.} =
|
|
await procCall PubSub(g).unsubscribe(topics)
|
|
|
|
for pair in topics:
|
|
let topic = pair.topic
|
|
if topic in g.mesh:
|
|
let peers = g.mesh[topic]
|
|
g.mesh.del(topic)
|
|
for id in peers:
|
|
let p = g.peers[id]
|
|
await p.sendPrune(@[topic])
|
|
|
|
method publish*(g: GossipSub,
|
|
topic: string,
|
|
data: seq[byte]) {.async.} =
|
|
await procCall PubSub(g).publish(topic, data)
|
|
|
|
trace "about to publish message on topic", name = topic,
|
|
data = data.toHex()
|
|
if data.len > 0 and topic.len > 0:
|
|
var peers: HashSet[string]
|
|
if topic in g.topics: # if we're subscribed to the topic attempt to build a mesh
|
|
await g.rebalanceMesh(topic)
|
|
peers = g.mesh[topic]
|
|
else: # send to fanout peers
|
|
await g.replenishFanout(topic)
|
|
if topic in g.fanout:
|
|
peers = g.fanout[topic]
|
|
# set the fanout expiery time
|
|
g.lastFanoutPubSub[topic] = Moment.fromNow(GossipSubFanoutTTL)
|
|
|
|
let msg = newMessage(g.peerInfo, data, topic)
|
|
var sent: seq[Future[void]]
|
|
for p in peers:
|
|
if p == g.peerInfo.id:
|
|
continue
|
|
|
|
trace "publishing on topic", name = topic
|
|
g.mcache.put(msg)
|
|
sent.add(g.peers[p].send(@[RPCMsg(messages: @[msg])]))
|
|
await allFutures(sent)
|
|
|
|
method start*(g: GossipSub) {.async.} =
|
|
## start pubsub
|
|
## start long running/repeating procedures
|
|
|
|
# setup the heartbeat interval
|
|
g.heartbeatCancel = addInterval(GossipSubHeartbeatInterval,
|
|
proc (arg: pointer = nil) {.gcsafe, locks: 0.} =
|
|
asyncCheck g.heartbeat)
|
|
|
|
method stop*(g: GossipSub) {.async.} =
|
|
## stopt pubsub
|
|
## stop long running tasks
|
|
|
|
await g.heartbeatLock.acquire()
|
|
|
|
# stop heartbeat interval
|
|
if not g.heartbeatCancel.finished:
|
|
g.heartbeatCancel.complete()
|
|
|
|
g.heartbeatLock.release()
|
|
|
|
method initPubSub(g: GossipSub) =
|
|
procCall FloodSub(g).initPubSub()
|
|
|
|
g.mcache = newMCache(GossipSubHistoryGossip, GossipSubHistoryLength)
|
|
g.mesh = initTable[string, HashSet[string]]() # meshes - topic to peer
|
|
g.fanout = initTable[string, HashSet[string]]() # fanout - topic to peer
|
|
g.gossipsub = initTable[string, HashSet[string]]() # topic to peer map of all gossipsub peers
|
|
g.lastFanoutPubSub = initTable[string, Moment]() # last publish time for fanout topics
|
|
g.gossip = initTable[string, seq[ControlIHave]]() # pending gossip
|
|
g.control = initTable[string, ControlMessage]() # pending control messages
|
|
g.heartbeatLock = newAsyncLock()
|
|
|
|
## Unit tests
|
|
when isMainModule and not defined(release):
|
|
## Test internal (private) methods for gossip,
|
|
## mesh and fanout maintenance.
|
|
## Usually I wouldn't test private behaviour,
|
|
## but the maintenance methods are quite involved,
|
|
## hence these tests are here.
|
|
##
|
|
|
|
import unittest
|
|
import ../../stream/bufferstream
|
|
|
|
type
|
|
TestGossipSub = ref object of GossipSub
|
|
|
|
suite "GossipSub":
|
|
test "`rebalanceMesh` Degree Lo":
|
|
proc testRun(): Future[bool] {.async.} =
|
|
let gossipSub = newPubSub(TestGossipSub,
|
|
PeerInfo.init(PrivateKey.random(RSA)))
|
|
|
|
let topic = "foobar"
|
|
gossipSub.mesh[topic] = initHashSet[string]()
|
|
proc writeHandler(data: seq[byte]) {.async.} =
|
|
discard
|
|
|
|
for i in 0..<15:
|
|
let conn = newConnection(newBufferStream(writeHandler))
|
|
let peerInfo = PeerInfo.init(PrivateKey.random(RSA))
|
|
conn.peerInfo = peerInfo
|
|
gossipSub.peers[peerInfo.id] = newPubSubPeer(peerInfo, GossipSubCodec)
|
|
gossipSub.peers[peerInfo.id].conn = conn
|
|
gossipSub.mesh[topic].incl(peerInfo.id)
|
|
|
|
check gossipSub.peers.len == 15
|
|
await gossipSub.rebalanceMesh(topic)
|
|
check gossipSub.mesh[topic].len == GossipSubD
|
|
|
|
result = true
|
|
|
|
check:
|
|
waitFor(testRun()) == true
|
|
|
|
test "`rebalanceMesh` Degree Hi":
|
|
proc testRun(): Future[bool] {.async.} =
|
|
let gossipSub = newPubSub(TestGossipSub,
|
|
PeerInfo.init(PrivateKey.random(RSA)))
|
|
|
|
let topic = "foobar"
|
|
gossipSub.gossipsub[topic] = initHashSet[string]()
|
|
proc writeHandler(data: seq[byte]) {.async.} =
|
|
discard
|
|
|
|
for i in 0..<15:
|
|
let conn = newConnection(newBufferStream(writeHandler))
|
|
let peerInfo = PeerInfo.init(PrivateKey.random(RSA))
|
|
conn.peerInfo = peerInfo
|
|
gossipSub.peers[peerInfo.id] = newPubSubPeer(peerInfo, GossipSubCodec)
|
|
gossipSub.peers[peerInfo.id].conn = conn
|
|
gossipSub.gossipsub[topic].incl(peerInfo.id)
|
|
|
|
check gossipSub.gossipsub[topic].len == 15
|
|
await gossipSub.rebalanceMesh(topic)
|
|
check gossipSub.mesh[topic].len == GossipSubD
|
|
|
|
result = true
|
|
|
|
check:
|
|
waitFor(testRun()) == true
|
|
|
|
test "`replenishFanout` Degree Lo":
|
|
proc testRun(): Future[bool] {.async.} =
|
|
let gossipSub = newPubSub(TestGossipSub,
|
|
PeerInfo.init(PrivateKey.random(RSA)))
|
|
|
|
proc handler(peer: PubSubPeer, msg: seq[RPCMsg]) {.async.} =
|
|
discard
|
|
|
|
let topic = "foobar"
|
|
gossipSub.gossipsub[topic] = initHashSet[string]()
|
|
proc writeHandler(data: seq[byte]) {.async.} =
|
|
discard
|
|
|
|
for i in 0..<15:
|
|
let conn = newConnection(newBufferStream(writeHandler))
|
|
var peerInfo = PeerInfo.init(PrivateKey.random(RSA))
|
|
conn.peerInfo = peerInfo
|
|
gossipSub.peers[peerInfo.id] = newPubSubPeer(peerInfo, GossipSubCodec)
|
|
gossipSub.peers[peerInfo.id].handler = handler
|
|
gossipSub.gossipsub[topic].incl(peerInfo.id)
|
|
|
|
check gossipSub.gossipsub[topic].len == 15
|
|
await gossipSub.replenishFanout(topic)
|
|
check gossipSub.fanout[topic].len == GossipSubD
|
|
|
|
result = true
|
|
|
|
check:
|
|
waitFor(testRun()) == true
|
|
|
|
test "`dropFanoutPeers` drop expired fanout topics":
|
|
proc testRun(): Future[bool] {.async.} =
|
|
let gossipSub = newPubSub(TestGossipSub,
|
|
PeerInfo.init(PrivateKey.random(RSA)))
|
|
|
|
proc handler(peer: PubSubPeer, msg: seq[RPCMsg]) {.async.} =
|
|
discard
|
|
|
|
let topic = "foobar"
|
|
gossipSub.fanout[topic] = initHashSet[string]()
|
|
gossipSub.lastFanoutPubSub[topic] = Moment.fromNow(100.millis)
|
|
proc writeHandler(data: seq[byte]) {.async.} =
|
|
discard
|
|
|
|
for i in 0..<6:
|
|
let conn = newConnection(newBufferStream(writeHandler))
|
|
let peerInfo = PeerInfo.init(PrivateKey.random(RSA))
|
|
conn.peerInfo = peerInfo
|
|
gossipSub.peers[peerInfo.id] = newPubSubPeer(peerInfo, GossipSubCodec)
|
|
gossipSub.peers[peerInfo.id].handler = handler
|
|
gossipSub.fanout[topic].incl(peerInfo.id)
|
|
|
|
check gossipSub.fanout[topic].len == GossipSubD
|
|
|
|
await sleepAsync(101.millis)
|
|
await gossipSub.dropFanoutPeers()
|
|
check topic notin gossipSub.fanout
|
|
|
|
result = true
|
|
|
|
check:
|
|
waitFor(testRun()) == true
|
|
|
|
test "`dropFanoutPeers` leave unexpired fanout topics":
|
|
proc testRun(): Future[bool] {.async.} =
|
|
let gossipSub = newPubSub(TestGossipSub,
|
|
PeerInfo.init(PrivateKey.random(RSA)))
|
|
|
|
proc handler(peer: PubSubPeer, msg: seq[RPCMsg]) {.async.} =
|
|
discard
|
|
|
|
let topic1 = "foobar1"
|
|
let topic2 = "foobar2"
|
|
gossipSub.fanout[topic1] = initHashSet[string]()
|
|
gossipSub.fanout[topic2] = initHashSet[string]()
|
|
gossipSub.lastFanoutPubSub[topic1] = Moment.fromNow(100.millis)
|
|
gossipSub.lastFanoutPubSub[topic1] = Moment.fromNow(500.millis)
|
|
|
|
proc writeHandler(data: seq[byte]) {.async.} =
|
|
discard
|
|
|
|
for i in 0..<6:
|
|
let conn = newConnection(newBufferStream(writeHandler))
|
|
let peerInfo = PeerInfo.init(PrivateKey.random(RSA))
|
|
conn.peerInfo = peerInfo
|
|
gossipSub.peers[peerInfo.id] = newPubSubPeer(peerInfo, GossipSubCodec)
|
|
gossipSub.peers[peerInfo.id].handler = handler
|
|
gossipSub.fanout[topic1].incl(peerInfo.id)
|
|
gossipSub.fanout[topic2].incl(peerInfo.id)
|
|
|
|
check gossipSub.fanout[topic1].len == GossipSubD
|
|
check gossipSub.fanout[topic2].len == GossipSubD
|
|
|
|
await sleepAsync(101.millis)
|
|
await gossipSub.dropFanoutPeers()
|
|
check topic1 notin gossipSub.fanout
|
|
check topic2 in gossipSub.fanout
|
|
|
|
result = true
|
|
|
|
check:
|
|
waitFor(testRun()) == true
|
|
|
|
test "`getGossipPeers` - should gather up to degree D non intersecting peers":
|
|
proc testRun(): Future[bool] {.async.} =
|
|
let gossipSub = newPubSub(TestGossipSub,
|
|
PeerInfo.init(PrivateKey.random(RSA)))
|
|
|
|
proc handler(peer: PubSubPeer, msg: seq[RPCMsg]) {.async.} =
|
|
discard
|
|
|
|
proc writeHandler(data: seq[byte]) {.async.} =
|
|
discard
|
|
|
|
let topic = "foobar"
|
|
gossipSub.mesh[topic] = initHashSet[string]()
|
|
gossipSub.fanout[topic] = initHashSet[string]()
|
|
gossipSub.gossipsub[topic] = initHashSet[string]()
|
|
for i in 0..<30:
|
|
let conn = newConnection(newBufferStream(writeHandler))
|
|
let peerInfo = PeerInfo.init(PrivateKey.random(RSA))
|
|
conn.peerInfo = peerInfo
|
|
gossipSub.peers[peerInfo.id] = newPubSubPeer(peerInfo, GossipSubCodec)
|
|
gossipSub.peers[peerInfo.id].handler = handler
|
|
if i mod 2 == 0:
|
|
gossipSub.fanout[topic].incl(peerInfo.id)
|
|
else:
|
|
gossipSub.mesh[topic].incl(peerInfo.id)
|
|
|
|
for i in 0..<15:
|
|
let conn = newConnection(newBufferStream(writeHandler))
|
|
let peerInfo = PeerInfo.init(PrivateKey.random(RSA))
|
|
conn.peerInfo = peerInfo
|
|
gossipSub.peers[peerInfo.id] = newPubSubPeer(peerInfo, GossipSubCodec)
|
|
gossipSub.peers[peerInfo.id].handler = handler
|
|
gossipSub.gossipsub[topic].incl(peerInfo.id)
|
|
|
|
check gossipSub.fanout[topic].len == 15
|
|
check gossipSub.fanout[topic].len == 15
|
|
check gossipSub.gossipsub[topic].len == 15
|
|
|
|
let peers = gossipSub.getGossipPeers()
|
|
check peers.len == GossipSubD
|
|
for p in peers.keys:
|
|
check p notin gossipSub.fanout[topic]
|
|
check p notin gossipSub.mesh[topic]
|
|
|
|
result = true
|
|
|
|
check:
|
|
waitFor(testRun()) == true
|
|
|
|
test "`getGossipPeers` - should not crash on missing topics in mesh":
|
|
proc testRun(): Future[bool] {.async.} =
|
|
let gossipSub = newPubSub(TestGossipSub,
|
|
PeerInfo.init(PrivateKey.random(RSA)))
|
|
|
|
proc handler(peer: PubSubPeer, msg: seq[RPCMsg]) {.async.} =
|
|
discard
|
|
|
|
proc writeHandler(data: seq[byte]) {.async.} =
|
|
discard
|
|
|
|
let topic = "foobar"
|
|
gossipSub.fanout[topic] = initHashSet[string]()
|
|
gossipSub.gossipsub[topic] = initHashSet[string]()
|
|
for i in 0..<30:
|
|
let conn = newConnection(newBufferStream(writeHandler))
|
|
let peerInfo = PeerInfo.init(PrivateKey.random(RSA))
|
|
conn.peerInfo = peerInfo
|
|
gossipSub.peers[peerInfo.id] = newPubSubPeer(peerInfo, GossipSubCodec)
|
|
gossipSub.peers[peerInfo.id].handler = handler
|
|
if i mod 2 == 0:
|
|
gossipSub.fanout[topic].incl(peerInfo.id)
|
|
else:
|
|
gossipSub.gossipsub[topic].incl(peerInfo.id)
|
|
|
|
let peers = gossipSub.getGossipPeers()
|
|
check peers.len == GossipSubD
|
|
result = true
|
|
|
|
check:
|
|
waitFor(testRun()) == true
|
|
|
|
test "`getGossipPeers` - should not crash on missing topics in gossip":
|
|
proc testRun(): Future[bool] {.async.} =
|
|
let gossipSub = newPubSub(TestGossipSub,
|
|
PeerInfo.init(PrivateKey.random(RSA)))
|
|
|
|
proc handler(peer: PubSubPeer, msg: seq[RPCMsg]) {.async.} =
|
|
discard
|
|
|
|
proc writeHandler(data: seq[byte]) {.async.} =
|
|
discard
|
|
|
|
let topic = "foobar"
|
|
gossipSub.mesh[topic] = initHashSet[string]()
|
|
gossipSub.gossipsub[topic] = initHashSet[string]()
|
|
for i in 0..<30:
|
|
let conn = newConnection(newBufferStream(writeHandler))
|
|
let peerInfo = PeerInfo.init(PrivateKey.random(RSA))
|
|
conn.peerInfo = peerInfo
|
|
gossipSub.peers[peerInfo.id] = newPubSubPeer(peerInfo, GossipSubCodec)
|
|
gossipSub.peers[peerInfo.id].handler = handler
|
|
if i mod 2 == 0:
|
|
gossipSub.mesh[topic].incl(peerInfo.id)
|
|
else:
|
|
gossipSub.gossipsub[topic].incl(peerInfo.id)
|
|
|
|
let peers = gossipSub.getGossipPeers()
|
|
check peers.len == GossipSubD
|
|
result = true
|
|
|
|
check:
|
|
waitFor(testRun()) == true
|
|
|
|
test "`getGossipPeers` - should not crash on missing topics in gossip":
|
|
proc testRun(): Future[bool] {.async.} =
|
|
let gossipSub = newPubSub(TestGossipSub,
|
|
PeerInfo.init(PrivateKey.random(RSA)))
|
|
|
|
proc handler(peer: PubSubPeer, msg: seq[RPCMsg]) {.async.} =
|
|
discard
|
|
|
|
proc writeHandler(data: seq[byte]) {.async.} =
|
|
discard
|
|
|
|
let topic = "foobar"
|
|
gossipSub.mesh[topic] = initHashSet[string]()
|
|
gossipSub.fanout[topic] = initHashSet[string]()
|
|
for i in 0..<30:
|
|
let conn = newConnection(newBufferStream(writeHandler))
|
|
let peerInfo = PeerInfo.init(PrivateKey.random(RSA))
|
|
conn.peerInfo = peerInfo
|
|
gossipSub.peers[peerInfo.id] = newPubSubPeer(peerInfo, GossipSubCodec)
|
|
gossipSub.peers[peerInfo.id].handler = handler
|
|
if i mod 2 == 0:
|
|
gossipSub.mesh[topic].incl(peerInfo.id)
|
|
else:
|
|
gossipSub.fanout[topic].incl(peerInfo.id)
|
|
|
|
let peers = gossipSub.getGossipPeers()
|
|
check peers.len == 0
|
|
result = true
|
|
|
|
check:
|
|
waitFor(testRun()) == true
|