mirror of https://github.com/vacp2p/nim-libp2p.git
a few more log fixes (#355)
This commit is contained in:
Jacek Sieka
GitHub
parent
c1856fda53
commit
2b72d485a3
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@ -44,7 +44,8 @@ declareCounter(libp2p_failed_dials, "failed dials")
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declareCounter(libp2p_failed_upgrade, "peers failed upgrade")
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type
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NoPubSubException* = object of CatchableError
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UpgradeFailedError* = object of CatchableError
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DialFailedError* = object of CatchableError
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ConnEventKind* {.pure.} = enum
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Connected, # A connection was made and securely upgraded - there may be
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@ -111,13 +112,13 @@ proc isConnected*(s: Switch, peerId: PeerID): bool =
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proc secure(s: Switch, conn: Connection): Future[Connection] {.async, gcsafe.} =
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if s.secureManagers.len <= 0:
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raise newException(CatchableError, "No secure managers registered!")
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raise newException(UpgradeFailedError, "No secure managers registered!")
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let manager = await s.ms.select(conn, s.secureManagers.mapIt(it.codec))
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if manager.len == 0:
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raise newException(CatchableError, "Unable to negotiate a secure channel!")
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raise newException(UpgradeFailedError, "Unable to negotiate a secure channel!")
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trace "securing connection", codec = manager, conn
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trace "Securing connection", codec = manager, conn
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let secureProtocol = s.secureManagers.filterIt(it.codec == manager)
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# ms.select should deal with the correctness of this
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@ -133,7 +134,7 @@ proc identify(s: Switch, conn: Connection) {.async, gcsafe.} =
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let info = await s.identity.identify(conn, conn.peerInfo)
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if info.pubKey.isNone and isNil(conn):
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raise newException(CatchableError,
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raise newException(UpgradeFailedError,
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"no public key provided and no existing peer identity found")
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if isNil(conn.peerInfo):
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@ -151,7 +152,7 @@ proc identify(s: Switch, conn: Connection) {.async, gcsafe.} =
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if info.protos.len > 0:
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conn.peerInfo.protocols = info.protos
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trace "identify: identified remote peer", conn
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trace "identified remote peer", conn, peerInfo = shortLog(conn.peerInfo)
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proc identify(s: Switch, muxer: Muxer) {.async, gcsafe.} =
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# new stream for identify
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@ -168,7 +169,7 @@ proc identify(s: Switch, muxer: Muxer) {.async, gcsafe.} =
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proc mux(s: Switch, conn: Connection): Future[Muxer] {.async, gcsafe.} =
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## mux incoming connection
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trace "muxing connection", conn
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trace "Muxing connection", conn
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if s.muxers.len == 0:
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warn "no muxers registered, skipping upgrade flow", conn
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return
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@ -184,7 +185,8 @@ proc mux(s: Switch, conn: Connection): Future[Muxer] {.async, gcsafe.} =
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# install stream handler
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muxer.streamHandler = s.streamHandler
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s.connManager.storeOutgoing(muxer.connection)
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s.connManager.storeOutgoing(conn)
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trace "Storing muxer", conn
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s.connManager.storeMuxer(muxer)
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trace "found a muxer", name = muxerName, conn
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@ -193,7 +195,7 @@ proc mux(s: Switch, conn: Connection): Future[Muxer] {.async, gcsafe.} =
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let handlerFut = muxer.handle()
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# store it in muxed connections if we have a peer for it
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trace "adding muxer for peer", conn
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trace "Storing muxer with handler", conn
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s.connManager.storeMuxer(muxer, handlerFut) # update muxer with handler
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return muxer
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@ -202,20 +204,21 @@ proc disconnect*(s: Switch, peerId: PeerID): Future[void] {.gcsafe.} =
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s.connManager.dropPeer(peerId)
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proc upgradeOutgoing(s: Switch, conn: Connection): Future[Connection] {.async, gcsafe.} =
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trace "Upgrading outgoing connection", conn
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let sconn = await s.secure(conn) # secure the connection
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if isNil(sconn):
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raise newException(CatchableError,
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raise newException(UpgradeFailedError,
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"unable to secure connection, stopping upgrade")
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if sconn.peerInfo.isNil:
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raise newException(CatchableError,
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raise newException(UpgradeFailedError,
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"current version of nim-libp2p requires that secure protocol negotiates peerid")
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trace "upgrading connection", conn
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let muxer = await s.mux(sconn) # mux it if possible
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if muxer == nil:
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# TODO this might be relaxed in the future
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raise newException(CatchableError,
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raise newException(UpgradeFailedError,
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"a muxer is required for outgoing connections")
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try:
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@ -228,28 +231,26 @@ proc upgradeOutgoing(s: Switch, conn: Connection): Future[Connection] {.async, g
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if isNil(sconn.peerInfo):
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await sconn.close()
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raise newException(CatchableError,
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"unable to identify connection, stopping upgrade")
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raise newException(UpgradeFailedError,
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"No peerInfo for connection, stopping upgrade")
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trace "successfully upgraded outgoing connection", conn, sconn
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trace "Upgraded outgoing connection", conn, sconn
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return sconn
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proc upgradeIncoming(s: Switch, conn: Connection) {.async, gcsafe.} =
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trace "upgrading incoming connection", conn
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trace "Upgrading incoming connection", conn
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let ms = newMultistream()
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# secure incoming connections
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proc securedHandler (conn: Connection,
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proto: string)
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{.async, gcsafe, closure.} =
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var sconn: Connection
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trace "Securing connection", conn
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let secure = s.secureManagers.filterIt(it.codec == proto)[0]
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try:
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sconn = await secure.secure(conn, false)
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var sconn = await secure.secure(conn, false)
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if isNil(sconn):
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return
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@ -266,7 +267,9 @@ proc upgradeIncoming(s: Switch, conn: Connection) {.async, gcsafe.} =
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except CancelledError as exc:
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raise exc
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except CatchableError as exc:
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debug "ending secured handler", err = exc.msg, conn
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debug "Exception in secure handler", err = exc.msg, conn
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trace "Ending secured handler", conn
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if (await ms.select(conn)): # just handshake
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# add the secure handlers
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@ -296,11 +299,12 @@ proc internalConnect(s: Switch,
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# This connection should already have been removed from the connection
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# manager - it's essentially a bug that we end up here - we'll fail
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# for now, hoping that this will clean themselves up later...
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warn "dead connection in connection manager", peerId
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warn "dead connection in connection manager", conn
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await conn.close()
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raise newException(CatchableError, "Zombie connection encountered")
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raise newException(DialFailedError, "Zombie connection encountered")
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trace "Reusing existing connection", conn, direction = $conn.dir
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trace "Reusing existing connection", conn
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return conn
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trace "Dialing peer", peerId
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@ -311,10 +315,10 @@ proc internalConnect(s: Switch,
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let dialed = try:
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await t.dial(a)
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except CancelledError as exc:
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trace "dialing canceled", exc = exc.msg, peerId
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trace "Dialing canceled", exc = exc.msg, peerId
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raise exc
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except CatchableError as exc:
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trace "dialing failed", exc = exc.msg, peerId
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trace "Dialing failed", exc = exc.msg, peerId
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libp2p_failed_dials.inc()
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continue # Try the next address
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@ -337,7 +341,7 @@ proc internalConnect(s: Switch,
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doAssert not isNil(upgraded), "connection died after upgradeOutgoing"
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conn = upgraded
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trace "dial successful", conn, peerInfo = upgraded.peerInfo
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trace "Dial successful", conn, peerInfo = conn.peerInfo
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break
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finally:
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if lock.locked():
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@ -371,27 +375,25 @@ proc internalConnect(s: Switch,
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# All the errors are handled inside `cleanup()` procedure.
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asyncSpawn peerCleanup()
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return conn
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proc connect*(s: Switch, peerId: PeerID, addrs: seq[MultiAddress]) {.async.} =
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discard await s.internalConnect(peerId, addrs)
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proc negotiateStream(s: Switch, stream: Connection, proto: string): Future[Connection] {.async.} =
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trace "Attempting to select remote", proto = proto, stream
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proc negotiateStream(s: Switch, conn: Connection, proto: string): Future[Connection] {.async.} =
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trace "Negotiating stream", proto = proto, conn
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if not await s.ms.select(conn, proto):
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await conn.close()
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raise newException(DialFailedError, "Unable to select sub-protocol " & proto)
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if not await s.ms.select(stream, proto):
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await stream.close()
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raise newException(CatchableError, "Unable to select sub-protocol" & proto)
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return stream
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return conn
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proc dial*(s: Switch,
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peerId: PeerID,
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proto: string): Future[Connection] {.async.} =
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let stream = await s.connmanager.getMuxedStream(peerId)
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if stream.isNil:
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raise newException(CatchableError, "Couldn't get muxed stream")
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raise newException(DialFailedError, "Couldn't get muxed stream")
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return await s.negotiateStream(stream, proto)
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@ -413,7 +415,7 @@ proc dial*(s: Switch,
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try:
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if isNil(stream):
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await conn.close()
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raise newException(CatchableError, "Couldn't get muxed stream")
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raise newException(DialFailedError, "Couldn't get muxed stream")
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return await s.negotiateStream(stream, proto)
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except CancelledError as exc:
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@ -421,7 +423,7 @@ proc dial*(s: Switch,
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await cleanup()
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raise exc
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except CatchableError as exc:
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trace "error dialing", exc = exc.msg, conn
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trace "Error dialing", exc = exc.msg, conn
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await cleanup()
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raise exc
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@ -440,14 +442,16 @@ proc start*(s: Switch): Future[seq[Future[void]]] {.async, gcsafe.} =
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trace "starting switch for peer", peerInfo = s.peerInfo
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proc handle(conn: Connection): Future[void] {.async, closure, gcsafe.} =
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trace "Incoming connection", conn
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try:
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await s.upgradeIncoming(conn) # perform upgrade on incoming connection
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except CancelledError as exc:
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raise exc
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except CatchableError as exc:
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trace "Error in connection handler", exc = exc.msg, conn
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trace "Exception occurred in incoming handler", exc = exc.msg, conn
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finally:
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await conn.close()
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trace "Connection handler done", conn
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var startFuts: seq[Future[void]]
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for t in s.transports: # for each transport
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@ -457,7 +461,7 @@ proc start*(s: Switch): Future[seq[Future[void]]] {.async, gcsafe.} =
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s.peerInfo.addrs[i] = t.ma # update peer's address
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startFuts.add(server)
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debug "started libp2p node", peerInfo = s.peerInfo
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debug "Started libp2p node", peer = s.peerInfo
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result = startFuts # listen for incoming connections
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proc stop*(s: Switch) {.async.} =
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@ -477,13 +481,16 @@ proc stop*(s: Switch) {.async.} =
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trace "switch stopped"
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proc muxerHandler(s: Switch, muxer: Muxer) {.async, gcsafe.} =
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if muxer.connection.peerInfo.isNil:
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let
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conn = muxer.connection
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if conn.peerInfo.isNil:
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warn "This version of nim-libp2p requires secure protocol to negotiate peerid"
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await muxer.close()
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return
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# store incoming connection
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s.connManager.storeIncoming(muxer.connection)
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s.connManager.storeIncoming(conn)
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# store muxer and muxed connection
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s.connManager.storeMuxer(muxer)
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@ -494,10 +501,10 @@ proc muxerHandler(s: Switch, muxer: Muxer) {.async, gcsafe.} =
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# Identify is non-essential, though if it fails, it might indicate that
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# the connection was closed already - this will be picked up by the read
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# loop
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debug "Could not identify connection", err = exc.msg, muxer
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debug "Could not identify connection", err = exc.msg, conn
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try:
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let peerId = muxer.connection.peerInfo.peerId
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let peerId = conn.peerInfo.peerId
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proc peerCleanup() {.async.} =
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try:
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@ -507,10 +514,10 @@ proc muxerHandler(s: Switch, muxer: Muxer) {.async, gcsafe.} =
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except CancelledError:
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# This is top-level procedure which will work as separate task, so it
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# do not need to propogate CancelledError.
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debug "Unexpected cancellation in switch muxer cleanup"
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debug "Unexpected cancellation in switch muxer cleanup", conn
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except CatchableError as exc:
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debug "Unexpected exception in switch muxer cleanup",
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errMsg = exc.msg, muxer
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err = exc.msg, conn
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proc peerStartup() {.async.} =
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try:
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@ -520,10 +527,10 @@ proc muxerHandler(s: Switch, muxer: Muxer) {.async, gcsafe.} =
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except CancelledError:
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# This is top-level procedure which will work as separate task, so it
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# do not need to propogate CancelledError.
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debug "Unexpected cancellation in switch muxer startup", muxer
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debug "Unexpected cancellation in switch muxer startup", conn
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except CatchableError as exc:
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debug "Unexpected exception in switch muxer startup",
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errMsg = exc.msg, muxer
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err = exc.msg, conn
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# All the errors are handled inside `peerStartup()` procedure.
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asyncSpawn peerStartup()
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@ -537,7 +544,7 @@ proc muxerHandler(s: Switch, muxer: Muxer) {.async, gcsafe.} =
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except CatchableError as exc:
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await muxer.close()
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libp2p_failed_upgrade.inc()
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trace "exception in muxer handler", exc = exc.msg, muxer
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trace "Exception in muxer handler", exc = exc.msg, conn
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proc newSwitch*(peerInfo: PeerInfo,
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transports: seq[Transport],
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@ -558,17 +565,17 @@ proc newSwitch*(peerInfo: PeerInfo,
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)
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let s = result # can't capture result
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result.streamHandler = proc(stream: Connection) {.async, gcsafe.} =
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result.streamHandler = proc(conn: Connection) {.async, gcsafe.} = # noraises
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trace "Incoming muxed connection", conn
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try:
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trace "handling connection for", stream
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defer:
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if not(isNil(stream)):
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await stream.close()
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await s.ms.handle(stream) # handle incoming connection
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await s.ms.handle(conn) # handle incoming connection
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except CancelledError as exc:
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raise exc
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except CatchableError as exc:
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trace "exception in stream handler", exc = exc.msg, stream
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trace "exception in stream handler", exc = exc.msg, conn
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finally:
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await conn.close()
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trace "Muxed connection done", conn
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result.mount(identity)
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for key, val in muxers:
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