1327 lines
46 KiB
Nim
1327 lines
46 KiB
Nim
## Nim-LibP2P
|
|
## Copyright (c) 2018 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.
|
|
|
|
## This module implementes API for `go-libp2p-daemon`.
|
|
import std/[os, osproc, strutils, tables, strtabs]
|
|
import chronos, chronicles
|
|
import ../varint, ../multiaddress, ../multicodec, ../cid, ../peerid
|
|
import ../wire, ../multihash, ../protobuf/minprotobuf
|
|
import ../crypto/crypto
|
|
|
|
export peerid, multiaddress, multicodec, multihash, cid, crypto, wire
|
|
|
|
when not defined(windows):
|
|
import posix
|
|
|
|
const
|
|
DefaultSocketPath* = "/unix/tmp/p2pd.sock"
|
|
DefaultUnixSocketPattern* = "/unix/tmp/nim-p2pd-$1-$2.sock"
|
|
DefaultIpSocketPattern* = "/ip4/127.0.0.1/tcp/$2"
|
|
DefaultUnixChildPattern* = "/unix/tmp/nim-p2pd-handle-$1-$2.sock"
|
|
DefaultIpChildPattern* = "/ip4/127.0.0.1/tcp/$2"
|
|
DefaultDaemonFile* = "p2pd"
|
|
|
|
type
|
|
IpfsLogLevel* {.pure.} = enum
|
|
Critical, Error, Warning, Notice, Info, Debug, Trace
|
|
|
|
RequestType* {.pure.} = enum
|
|
IDENTITY = 0,
|
|
CONNECT = 1,
|
|
STREAM_OPEN = 2,
|
|
STREAM_HANDLER = 3,
|
|
DHT = 4,
|
|
LIST_PEERS = 5,
|
|
CONNMANAGER = 6,
|
|
DISCONNECT = 7
|
|
PUBSUB = 8
|
|
|
|
DHTRequestType* {.pure.} = enum
|
|
FIND_PEER = 0,
|
|
FIND_PEERS_CONNECTED_TO_PEER = 1,
|
|
FIND_PROVIDERS = 2,
|
|
GET_CLOSEST_PEERS = 3,
|
|
GET_PUBLIC_KEY = 4,
|
|
GET_VALUE = 5,
|
|
SEARCH_VALUE = 6,
|
|
PUT_VALUE = 7,
|
|
PROVIDE = 8
|
|
|
|
ConnManagerRequestType* {.pure.} = enum
|
|
TAG_PEER = 0,
|
|
UNTAG_PEER = 1,
|
|
TRIM = 2
|
|
|
|
PSRequestType* {.pure.} = enum
|
|
GET_TOPICS = 0,
|
|
LIST_PEERS = 1,
|
|
PUBLISH = 2,
|
|
SUBSCRIBE = 3
|
|
|
|
ResponseKind* = enum
|
|
Malformed,
|
|
Error,
|
|
Success
|
|
|
|
ResponseType* {.pure.} = enum
|
|
ERROR = 2,
|
|
STREAMINFO = 3,
|
|
IDENTITY = 4,
|
|
DHT = 5,
|
|
PEERINFO = 6
|
|
PUBSUB = 7
|
|
|
|
DHTResponseType* {.pure.} = enum
|
|
BEGIN = 0,
|
|
VALUE = 1,
|
|
END = 2
|
|
|
|
MultiProtocol* = string
|
|
DHTValue* = seq[byte]
|
|
|
|
P2PStreamFlags* {.pure.} = enum
|
|
None, Closed, Inbound, Outbound
|
|
|
|
P2PDaemonFlags* = enum
|
|
DHTClient, ## Start daemon in DHT client mode
|
|
DHTFull, ## Start daemon with full DHT support
|
|
Bootstrap, ## Start daemon with bootstrap
|
|
WaitBootstrap, ## Start daemon with bootstrap and wait until daemon
|
|
## establish connection to at least 2 peers
|
|
PSFloodSub, ## Enable `FloodSub` protocol in daemon
|
|
PSGossipSub, ## Enable `GossipSub` protocol in daemon
|
|
PSNoSign, ## Disable pubsub message signing (default true)
|
|
PSStrictSign, ## Force strict checking pubsub message signature
|
|
NATPortMap, ## Force daemon to use NAT-PMP.
|
|
AutoNAT, ## Force daemon to use AutoNAT.
|
|
AutoRelay, ## Enables autorelay mode.
|
|
RelayActive, ## Enables active mode for relay.
|
|
RelayDiscovery,## Enables passive discovery for relay.
|
|
RelayHop, ## Enables hop for relay.
|
|
NoInlinePeerID,## Disable inlining of peer ID (not yet in #master).
|
|
NoProcessCtrl ## Process was not spawned.
|
|
|
|
P2PStream* = ref object
|
|
flags*: set[P2PStreamFlags]
|
|
peer*: PeerID
|
|
raddress*: MultiAddress
|
|
protocol*: string
|
|
transp*: StreamTransport
|
|
|
|
P2PServer = object
|
|
server*: StreamServer
|
|
address*: MultiAddress
|
|
|
|
DaemonAPI* = ref object
|
|
# pool*: TransportPool
|
|
flags*: set[P2PDaemonFlags]
|
|
address*: MultiAddress
|
|
pattern*: string
|
|
ucounter*: int
|
|
process*: Process
|
|
handlers*: Table[string, P2PStreamCallback]
|
|
servers*: seq[P2PServer]
|
|
userData*: RootRef
|
|
|
|
PeerInfo* = object
|
|
peer*: PeerID
|
|
addresses*: seq[MultiAddress]
|
|
|
|
PubsubTicket* = ref object
|
|
topic*: string
|
|
handler*: P2PPubSubCallback
|
|
transp*: StreamTransport
|
|
|
|
PubSubMessage* = object
|
|
peer*: PeerID
|
|
data*: seq[byte]
|
|
seqno*: seq[byte]
|
|
topics*: seq[string]
|
|
signature*: Signature
|
|
key*: PublicKey
|
|
|
|
P2PStreamCallback* = proc(api: DaemonAPI,
|
|
stream: P2PStream): Future[void] {.gcsafe.}
|
|
P2PPubSubCallback* = proc(api: DaemonAPI,
|
|
ticket: PubsubTicket,
|
|
message: PubSubMessage): Future[bool] {.gcsafe.}
|
|
|
|
DaemonRemoteError* = object of CatchableError
|
|
DaemonLocalError* = object of CatchableError
|
|
|
|
var daemonsCount {.threadvar.}: int
|
|
|
|
chronicles.formatIt(PeerInfo): shortLog(it)
|
|
|
|
proc requestIdentity(): ProtoBuffer =
|
|
## https://github.com/libp2p/go-libp2p-daemon/blob/master/conn.go
|
|
## Processing function `doIdentify(req *pb.Request)`.
|
|
result = initProtoBuffer({WithVarintLength})
|
|
result.write(initProtoField(1, cast[uint](RequestType.IDENTITY)))
|
|
result.finish()
|
|
|
|
proc requestConnect(peerid: PeerID,
|
|
addresses: openarray[MultiAddress],
|
|
timeout = 0): ProtoBuffer =
|
|
## https://github.com/libp2p/go-libp2p-daemon/blob/master/conn.go
|
|
## Processing function `doConnect(req *pb.Request)`.
|
|
result = initProtoBuffer({WithVarintLength})
|
|
var msg = initProtoBuffer()
|
|
msg.write(initProtoField(1, peerid))
|
|
for item in addresses:
|
|
msg.write(initProtoField(2, item.data.buffer))
|
|
if timeout > 0:
|
|
msg.write(initProtoField(3, hint64(timeout)))
|
|
result.write(initProtoField(1, cast[uint](RequestType.CONNECT)))
|
|
result.write(initProtoField(2, msg))
|
|
result.finish()
|
|
|
|
proc requestDisconnect(peerid: PeerID): ProtoBuffer =
|
|
## https://github.com/libp2p/go-libp2p-daemon/blob/master/conn.go
|
|
## Processing function `doDisconnect(req *pb.Request)`.
|
|
result = initProtoBuffer({WithVarintLength})
|
|
var msg = initProtoBuffer()
|
|
msg.write(initProtoField(1, peerid))
|
|
result.write(initProtoField(1, cast[uint](RequestType.DISCONNECT)))
|
|
result.write(initProtoField(7, msg))
|
|
result.finish()
|
|
|
|
proc requestStreamOpen(peerid: PeerID,
|
|
protocols: openarray[string],
|
|
timeout = 0): ProtoBuffer =
|
|
## https://github.com/libp2p/go-libp2p-daemon/blob/master/conn.go
|
|
## Processing function `doStreamOpen(req *pb.Request)`.
|
|
result = initProtoBuffer({WithVarintLength})
|
|
var msg = initProtoBuffer()
|
|
msg.write(initProtoField(1, peerid))
|
|
for item in protocols:
|
|
msg.write(initProtoField(2, item))
|
|
if timeout > 0:
|
|
msg.write(initProtoField(3, hint64(timeout)))
|
|
result.write(initProtoField(1, cast[uint](RequestType.STREAM_OPEN)))
|
|
result.write(initProtoField(3, msg))
|
|
result.finish()
|
|
|
|
proc requestStreamHandler(address: MultiAddress,
|
|
protocols: openarray[MultiProtocol]): ProtoBuffer =
|
|
## https://github.com/libp2p/go-libp2p-daemon/blob/master/conn.go
|
|
## Processing function `doStreamHandler(req *pb.Request)`.
|
|
result = initProtoBuffer({WithVarintLength})
|
|
var msg = initProtoBuffer()
|
|
msg.write(initProtoField(1, address.data.buffer))
|
|
for item in protocols:
|
|
msg.write(initProtoField(2, item))
|
|
result.write(initProtoField(1, cast[uint](RequestType.STREAM_HANDLER)))
|
|
result.write(initProtoField(4, msg))
|
|
result.finish()
|
|
|
|
proc requestListPeers(): ProtoBuffer =
|
|
## https://github.com/libp2p/go-libp2p-daemon/blob/master/conn.go
|
|
## Processing function `doListPeers(req *pb.Request)`
|
|
result = initProtoBuffer({WithVarintLength})
|
|
result.write(initProtoField(1, cast[uint](RequestType.LIST_PEERS)))
|
|
result.finish()
|
|
|
|
proc requestDHTFindPeer(peer: PeerID, timeout = 0): ProtoBuffer =
|
|
## https://github.com/libp2p/go-libp2p-daemon/blob/master/dht.go
|
|
## Processing function `doDHTFindPeer(req *pb.DHTRequest)`.
|
|
let msgid = cast[uint](DHTRequestType.FIND_PEER)
|
|
result = initProtoBuffer({WithVarintLength})
|
|
var msg = initProtoBuffer()
|
|
msg.write(initProtoField(1, msgid))
|
|
msg.write(initProtoField(2, peer))
|
|
if timeout > 0:
|
|
msg.write(initProtoField(7, hint64(timeout)))
|
|
msg.finish()
|
|
result.write(initProtoField(1, cast[uint](RequestType.DHT)))
|
|
result.write(initProtoField(5, msg))
|
|
result.finish()
|
|
|
|
proc requestDHTFindPeersConnectedToPeer(peer: PeerID,
|
|
timeout = 0): ProtoBuffer =
|
|
## https://github.com/libp2p/go-libp2p-daemon/blob/master/dht.go
|
|
## Processing function `doDHTFindPeersConnectedToPeer(req *pb.DHTRequest)`.
|
|
let msgid = cast[uint](DHTRequestType.FIND_PEERS_CONNECTED_TO_PEER)
|
|
result = initProtoBuffer({WithVarintLength})
|
|
var msg = initProtoBuffer()
|
|
msg.write(initProtoField(1, msgid))
|
|
msg.write(initProtoField(2, peer))
|
|
if timeout > 0:
|
|
msg.write(initProtoField(7, hint64(timeout)))
|
|
msg.finish()
|
|
result.write(initProtoField(1, cast[uint](RequestType.DHT)))
|
|
result.write(initProtoField(5, msg))
|
|
result.finish()
|
|
|
|
proc requestDHTFindProviders(cid: Cid,
|
|
count: uint32, timeout = 0): ProtoBuffer =
|
|
## https://github.com/libp2p/go-libp2p-daemon/blob/master/dht.go
|
|
## Processing function `doDHTFindProviders(req *pb.DHTRequest)`.
|
|
let msgid = cast[uint](DHTRequestType.FIND_PROVIDERS)
|
|
result = initProtoBuffer({WithVarintLength})
|
|
var msg = initProtoBuffer()
|
|
msg.write(initProtoField(1, msgid))
|
|
msg.write(initProtoField(3, cid.data.buffer))
|
|
msg.write(initProtoField(6, count))
|
|
if timeout > 0:
|
|
msg.write(initProtoField(7, hint64(timeout)))
|
|
msg.finish()
|
|
result.write(initProtoField(1, cast[uint](RequestType.DHT)))
|
|
result.write(initProtoField(5, msg))
|
|
result.finish()
|
|
|
|
proc requestDHTGetClosestPeers(key: string, timeout = 0): ProtoBuffer =
|
|
## https://github.com/libp2p/go-libp2p-daemon/blob/master/dht.go
|
|
## Processing function `doDHTGetClosestPeers(req *pb.DHTRequest)`.
|
|
let msgid = cast[uint](DHTRequestType.GET_CLOSEST_PEERS)
|
|
result = initProtoBuffer({WithVarintLength})
|
|
var msg = initProtoBuffer()
|
|
msg.write(initProtoField(1, msgid))
|
|
msg.write(initProtoField(4, key))
|
|
if timeout > 0:
|
|
msg.write(initProtoField(7, hint64(timeout)))
|
|
msg.finish()
|
|
result.write(initProtoField(1, cast[uint](RequestType.DHT)))
|
|
result.write(initProtoField(5, msg))
|
|
result.finish()
|
|
|
|
proc requestDHTGetPublicKey(peer: PeerID, timeout = 0): ProtoBuffer =
|
|
## https://github.com/libp2p/go-libp2p-daemon/blob/master/dht.go
|
|
## Processing function `doDHTGetPublicKey(req *pb.DHTRequest)`.
|
|
let msgid = cast[uint](DHTRequestType.GET_PUBLIC_KEY)
|
|
result = initProtoBuffer({WithVarintLength})
|
|
var msg = initProtoBuffer()
|
|
msg.write(initProtoField(1, msgid))
|
|
msg.write(initProtoField(2, peer))
|
|
if timeout > 0:
|
|
msg.write(initProtoField(7, hint64(timeout)))
|
|
msg.finish()
|
|
result.write(initProtoField(1, cast[uint](RequestType.DHT)))
|
|
result.write(initProtoField(5, msg))
|
|
result.finish()
|
|
|
|
proc requestDHTGetValue(key: string, timeout = 0): ProtoBuffer =
|
|
## https://github.com/libp2p/go-libp2p-daemon/blob/master/dht.go
|
|
## Processing function `doDHTGetValue(req *pb.DHTRequest)`.
|
|
let msgid = cast[uint](DHTRequestType.GET_VALUE)
|
|
result = initProtoBuffer({WithVarintLength})
|
|
var msg = initProtoBuffer()
|
|
msg.write(initProtoField(1, msgid))
|
|
msg.write(initProtoField(4, key))
|
|
if timeout > 0:
|
|
msg.write(initProtoField(7, hint64(timeout)))
|
|
msg.finish()
|
|
result.write(initProtoField(1, cast[uint](RequestType.DHT)))
|
|
result.write(initProtoField(5, msg))
|
|
result.finish()
|
|
|
|
proc requestDHTSearchValue(key: string, timeout = 0): ProtoBuffer =
|
|
## https://github.com/libp2p/go-libp2p-daemon/blob/master/dht.go
|
|
## Processing function `doDHTSearchValue(req *pb.DHTRequest)`.
|
|
let msgid = cast[uint](DHTRequestType.SEARCH_VALUE)
|
|
result = initProtoBuffer({WithVarintLength})
|
|
var msg = initProtoBuffer()
|
|
msg.write(initProtoField(1, msgid))
|
|
msg.write(initProtoField(4, key))
|
|
if timeout > 0:
|
|
msg.write(initProtoField(7, hint64(timeout)))
|
|
msg.finish()
|
|
result.write(initProtoField(1, cast[uint](RequestType.DHT)))
|
|
result.write(initProtoField(5, msg))
|
|
result.finish()
|
|
|
|
proc requestDHTPutValue(key: string, value: openarray[byte],
|
|
timeout = 0): ProtoBuffer =
|
|
## https://github.com/libp2p/go-libp2p-daemon/blob/master/dht.go
|
|
## Processing function `doDHTPutValue(req *pb.DHTRequest)`.
|
|
let msgid = cast[uint](DHTRequestType.PUT_VALUE)
|
|
result = initProtoBuffer({WithVarintLength})
|
|
var msg = initProtoBuffer()
|
|
msg.write(initProtoField(1, msgid))
|
|
msg.write(initProtoField(4, key))
|
|
msg.write(initProtoField(5, value))
|
|
if timeout > 0:
|
|
msg.write(initProtoField(7, hint64(timeout)))
|
|
msg.finish()
|
|
result.write(initProtoField(1, cast[uint](RequestType.DHT)))
|
|
result.write(initProtoField(5, msg))
|
|
result.finish()
|
|
|
|
proc requestDHTProvide(cid: Cid, timeout = 0): ProtoBuffer =
|
|
## https://github.com/libp2p/go-libp2p-daemon/blob/master/dht.go
|
|
## Processing function `doDHTProvide(req *pb.DHTRequest)`.
|
|
let msgid = cast[uint](DHTRequestType.PROVIDE)
|
|
result = initProtoBuffer({WithVarintLength})
|
|
var msg = initProtoBuffer()
|
|
msg.write(initProtoField(1, msgid))
|
|
msg.write(initProtoField(3, cid.data.buffer))
|
|
if timeout > 0:
|
|
msg.write(initProtoField(7, hint64(timeout)))
|
|
msg.finish()
|
|
result.write(initProtoField(1, cast[uint](RequestType.DHT)))
|
|
result.write(initProtoField(5, msg))
|
|
result.finish()
|
|
|
|
proc requestCMTagPeer(peer: PeerID, tag: string, weight: int): ProtoBuffer =
|
|
## https://github.com/libp2p/go-libp2p-daemon/blob/master/connmgr.go#L18
|
|
let msgid = cast[uint](ConnManagerRequestType.TAG_PEER)
|
|
result = initProtoBuffer({WithVarintLength})
|
|
var msg = initProtoBuffer()
|
|
msg.write(initProtoField(1, msgid))
|
|
msg.write(initProtoField(2, peer))
|
|
msg.write(initProtoField(3, tag))
|
|
msg.write(initProtoField(4, hint64(weight)))
|
|
msg.finish()
|
|
result.write(initProtoField(1, cast[uint](RequestType.CONNMANAGER)))
|
|
result.write(initProtoField(6, msg))
|
|
result.finish()
|
|
|
|
proc requestCMUntagPeer(peer: PeerID, tag: string): ProtoBuffer =
|
|
## https://github.com/libp2p/go-libp2p-daemon/blob/master/connmgr.go#L33
|
|
let msgid = cast[uint](ConnManagerRequestType.UNTAG_PEER)
|
|
result = initProtoBuffer({WithVarintLength})
|
|
var msg = initProtoBuffer()
|
|
msg.write(initProtoField(1, msgid))
|
|
msg.write(initProtoField(2, peer))
|
|
msg.write(initProtoField(3, tag))
|
|
msg.finish()
|
|
result.write(initProtoField(1, cast[uint](RequestType.CONNMANAGER)))
|
|
result.write(initProtoField(6, msg))
|
|
result.finish()
|
|
|
|
proc requestCMTrim(): ProtoBuffer =
|
|
## https://github.com/libp2p/go-libp2p-daemon/blob/master/connmgr.go#L47
|
|
let msgid = cast[uint](ConnManagerRequestType.TRIM)
|
|
result = initProtoBuffer({WithVarintLength})
|
|
var msg = initProtoBuffer()
|
|
msg.write(initProtoField(1, msgid))
|
|
msg.finish()
|
|
result.write(initProtoField(1, cast[uint](RequestType.CONNMANAGER)))
|
|
result.write(initProtoField(6, msg))
|
|
result.finish()
|
|
|
|
proc requestPSGetTopics(): ProtoBuffer =
|
|
## https://github.com/libp2p/go-libp2p-daemon/blob/master/pubsub.go
|
|
## Processing function `doPubsubGetTopics(req *pb.PSRequest)`.
|
|
let msgid = cast[uint](PSRequestType.GET_TOPICS)
|
|
result = initProtoBuffer({WithVarintLength})
|
|
var msg = initProtoBuffer()
|
|
msg.write(initProtoField(1, msgid))
|
|
msg.finish()
|
|
result.write(initProtoField(1, cast[uint](RequestType.PUBSUB)))
|
|
result.write(initProtoField(8, msg))
|
|
result.finish()
|
|
|
|
proc requestPSListPeers(topic: string): ProtoBuffer =
|
|
## https://github.com/libp2p/go-libp2p-daemon/blob/master/pubsub.go
|
|
## Processing function `doPubsubListPeers(req *pb.PSRequest)`.
|
|
let msgid = cast[uint](PSRequestType.LIST_PEERS)
|
|
result = initProtoBuffer({WithVarintLength})
|
|
var msg = initProtoBuffer()
|
|
msg.write(initProtoField(1, msgid))
|
|
msg.write(initProtoField(2, topic))
|
|
msg.finish()
|
|
result.write(initProtoField(1, cast[uint](RequestType.PUBSUB)))
|
|
result.write(initProtoField(8, msg))
|
|
result.finish()
|
|
|
|
proc requestPSPublish(topic: string, data: openarray[byte]): ProtoBuffer =
|
|
## https://github.com/libp2p/go-libp2p-daemon/blob/master/pubsub.go
|
|
## Processing function `doPubsubPublish(req *pb.PSRequest)`.
|
|
let msgid = cast[uint](PSRequestType.PUBLISH)
|
|
result = initProtoBuffer({WithVarintLength})
|
|
var msg = initProtoBuffer()
|
|
msg.write(initProtoField(1, msgid))
|
|
msg.write(initProtoField(2, topic))
|
|
msg.write(initProtoField(3, data))
|
|
msg.finish()
|
|
result.write(initProtoField(1, cast[uint](RequestType.PUBSUB)))
|
|
result.write(initProtoField(8, msg))
|
|
result.finish()
|
|
|
|
proc requestPSSubscribe(topic: string): ProtoBuffer =
|
|
## https://github.com/libp2p/go-libp2p-daemon/blob/master/pubsub.go
|
|
## Processing function `doPubsubSubscribe(req *pb.PSRequest)`.
|
|
let msgid = cast[uint](PSRequestType.SUBSCRIBE)
|
|
result = initProtoBuffer({WithVarintLength})
|
|
var msg = initProtoBuffer()
|
|
msg.write(initProtoField(1, msgid))
|
|
msg.write(initProtoField(2, topic))
|
|
msg.finish()
|
|
result.write(initProtoField(1, cast[uint](RequestType.PUBSUB)))
|
|
result.write(initProtoField(8, msg))
|
|
result.finish()
|
|
|
|
proc checkResponse(pb: var ProtoBuffer): ResponseKind {.inline.} =
|
|
result = ResponseKind.Malformed
|
|
var value: uint64
|
|
if getVarintValue(pb, 1, value) > 0:
|
|
if value == 0:
|
|
result = ResponseKind.Success
|
|
else:
|
|
result = ResponseKind.Error
|
|
|
|
proc getErrorMessage(pb: var ProtoBuffer): string {.inline.} =
|
|
if pb.enterSubmessage() == cast[int](ResponseType.ERROR):
|
|
if pb.getString(1, result) == -1:
|
|
raise newException(DaemonLocalError, "Error message is missing!")
|
|
|
|
proc recvMessage(conn: StreamTransport): Future[seq[byte]] {.async.} =
|
|
var
|
|
size: uint
|
|
length: int
|
|
res: VarintResult[void]
|
|
var buffer = newSeq[byte](10)
|
|
try:
|
|
for i in 0..<len(buffer):
|
|
await conn.readExactly(addr buffer[i], 1)
|
|
res = PB.getUVarint(buffer.toOpenArray(0, i), length, size)
|
|
if res.isOk():
|
|
break
|
|
if res.isErr() or size > MaxMessageSize:
|
|
buffer.setLen(0)
|
|
result = buffer
|
|
return
|
|
buffer.setLen(size)
|
|
await conn.readExactly(addr buffer[0], int(size))
|
|
except TransportIncompleteError:
|
|
buffer.setLen(0)
|
|
|
|
result = buffer
|
|
|
|
proc newConnection*(api: DaemonAPI): Future[StreamTransport] =
|
|
result = connect(api.address)
|
|
|
|
proc closeConnection*(api: DaemonAPI, transp: StreamTransport): Future[void] =
|
|
result = transp.closeWait()
|
|
|
|
proc socketExists(address: MultiAddress): Future[bool] {.async.} =
|
|
try:
|
|
var transp = await connect(address)
|
|
await transp.closeWait()
|
|
result = true
|
|
except:
|
|
result = false
|
|
|
|
when defined(windows):
|
|
proc getCurrentProcessId(): uint32 {.stdcall, dynlib: "kernel32",
|
|
importc: "GetCurrentProcessId".}
|
|
proc getProcessId(): int =
|
|
result = cast[int](getCurrentProcessId())
|
|
else:
|
|
proc getProcessId(): int =
|
|
result = cast[int](posix.getpid())
|
|
|
|
proc getSocket(pattern: string,
|
|
count: ptr int): Future[MultiAddress] {.async.} =
|
|
var sockname = ""
|
|
var pid = $getProcessId()
|
|
sockname = pattern % [pid, $(count[])]
|
|
let tmpma = MultiAddress.init(sockname).tryGet()
|
|
|
|
if UNIX.match(tmpma):
|
|
while true:
|
|
count[] = count[] + 1
|
|
sockname = pattern % [pid, $(count[])]
|
|
var ma = MultiAddress.init(sockname).tryGet()
|
|
let res = await socketExists(ma)
|
|
if not res:
|
|
result = ma
|
|
break
|
|
elif TCP.match(tmpma):
|
|
sockname = pattern % [pid, "0"]
|
|
var ma = MultiAddress.init(sockname).tryGet()
|
|
var sock = createAsyncSocket(ma)
|
|
if sock.bindAsyncSocket(ma):
|
|
# Socket was successfully bound, then its free to use
|
|
count[] = count[] + 1
|
|
var ta = sock.getLocalAddress()
|
|
sockname = pattern % [pid, $ta.port]
|
|
result = MultiAddress.init(sockname).tryGet()
|
|
closeSocket(sock)
|
|
|
|
# This is forward declaration needed for newDaemonApi()
|
|
proc listPeers*(api: DaemonAPI): Future[seq[PeerInfo]] {.async, gcsafe.}
|
|
|
|
proc copyEnv(): StringTableRef =
|
|
## This procedure copy all environment variables into StringTable.
|
|
result = newStringTable(modeStyleInsensitive)
|
|
for key, val in envPairs():
|
|
result[key] = val
|
|
|
|
proc newDaemonApi*(flags: set[P2PDaemonFlags] = {},
|
|
bootstrapNodes: seq[string] = @[],
|
|
id: string = "",
|
|
hostAddresses: seq[MultiAddress] = @[],
|
|
announcedAddresses: seq[MultiAddress] = @[],
|
|
daemon = DefaultDaemonFile,
|
|
sockpath = "",
|
|
patternSock = "",
|
|
patternHandler = "",
|
|
poolSize = 10,
|
|
gossipsubHeartbeatInterval = 0,
|
|
gossipsubHeartbeatDelay = 0,
|
|
peersRequired = 2,
|
|
logFile = "",
|
|
logLevel = IpfsLogLevel.Debug): Future[DaemonAPI] {.async.} =
|
|
## Initialize connection to `go-libp2p-daemon` control socket.
|
|
##
|
|
## ``flags`` - set of P2PDaemonFlags.
|
|
##
|
|
## ``bootstrapNodes`` - list of bootnode's addresses in MultiAddress format.
|
|
## (default: @[], which means usage of default nodes inside of
|
|
## `go-libp2p-daemon`).
|
|
##
|
|
## ``id`` - path to file with identification information (default: "" which
|
|
## means - generate new random identity).
|
|
##
|
|
## ``hostAddresses`` - list of multiaddrs the host should listen on.
|
|
## (default: @[], the daemon will pick a listening port at random).
|
|
##
|
|
## ``announcedAddresses`` - list of multiaddrs the host should announce to
|
|
## the network (default: @[], the daemon will announce its own listening
|
|
## address).
|
|
##
|
|
## ``daemon`` - name of ``go-libp2p-daemon`` executable (default: "p2pd").
|
|
##
|
|
## ``sockpath`` - default control socket MultiAddress
|
|
## (default: "/unix/tmp/p2pd.sock").
|
|
##
|
|
## ``patternSock`` - MultiAddress pattern string, used to start multiple
|
|
## daemons (default on Unix: "/unix/tmp/nim-p2pd-$1-$2.sock", on Windows:
|
|
## "/ip4/127.0.0.1/tcp/$2").
|
|
##
|
|
## ``patternHandler`` - MultiAddress pattern string, used to establish
|
|
## incoming channels (default on Unix: "/unix/tmp/nim-p2pd-handle-$1-$2.sock",
|
|
## on Windows: "/ip4/127.0.0.1/tcp/$2").
|
|
##
|
|
## ``poolSize`` - size of connections pool (default: 10).
|
|
##
|
|
## ``gossipsubHeartbeatInterval`` - GossipSub protocol heartbeat interval in
|
|
## milliseconds (default: 0, use default `go-libp2p-daemon` values).
|
|
##
|
|
## ``gossipsubHeartbeatDelay`` - GossipSub protocol heartbeat delay in
|
|
## millseconds (default: 0, use default `go-libp2p-daemon` values).
|
|
##
|
|
## ``peersRequired`` - Wait until `go-libp2p-daemon` will connect to at least
|
|
## ``peersRequired`` peers before return from `newDaemonApi()` procedure
|
|
## (default: 2).
|
|
##
|
|
## ``logFile`` - Enable ``go-libp2p-daemon`` logging and store it to file
|
|
## ``logFile`` (default: "", no logging)
|
|
##
|
|
## ``logLevel`` - Set ``go-libp2p-daemon`` logging verbosity level to
|
|
## ``logLevel`` (default: Debug)
|
|
var api = new DaemonAPI
|
|
var args = newSeq[string]()
|
|
var env: StringTableRef
|
|
|
|
when defined(windows):
|
|
var patternForSocket = if len(patternSock) > 0:
|
|
patternSock
|
|
else:
|
|
DefaultIpSocketPattern
|
|
var patternForChild = if len(patternHandler) > 0:
|
|
patternHandler
|
|
else:
|
|
DefaultIpChildPattern
|
|
else:
|
|
var patternForSocket = if len(patternSock) > 0:
|
|
patternSock
|
|
else:
|
|
DefaultUnixSocketPattern
|
|
var patternForChild = if len(patternHandler) > 0:
|
|
patternHandler
|
|
else:
|
|
DefaultUnixChildPattern
|
|
|
|
api.flags = flags
|
|
api.servers = newSeq[P2PServer]()
|
|
api.pattern = patternForChild
|
|
api.ucounter = 1
|
|
|
|
if len(sockpath) == 0:
|
|
api.flags.excl(NoProcessCtrl)
|
|
api.address = await getSocket(patternForSocket, addr daemonsCount)
|
|
else:
|
|
api.address = MultiAddress.init(sockpath).tryGet()
|
|
api.flags.incl(NoProcessCtrl)
|
|
let res = await socketExists(api.address)
|
|
if not res:
|
|
raise newException(DaemonLocalError, "Could not connect to remote daemon")
|
|
result = api
|
|
return
|
|
|
|
# DHTFull and DHTClient could not be present at the same time
|
|
if DHTFull in flags and DHTClient in flags:
|
|
api.flags.excl(DHTClient)
|
|
# PSGossipSub and PSFloodSub could not be present at the same time
|
|
if PSGossipSub in flags and PSFloodSub in flags:
|
|
api.flags.excl(PSFloodSub)
|
|
if DHTFull in api.flags:
|
|
args.add("-dht")
|
|
if DHTClient in api.flags:
|
|
args.add("-dhtClient")
|
|
if {Bootstrap, WaitBootstrap} * api.flags != {}:
|
|
args.add("-b")
|
|
if len(logFile) != 0:
|
|
env = copyEnv()
|
|
env["IPFS_LOGGING_FMT"] = "nocolor"
|
|
env["GOLOG_FILE"] = logFile
|
|
case logLevel
|
|
of IpfsLogLevel.Critical:
|
|
env["IPFS_LOGGING"] = "CRITICAL"
|
|
of IpfsLogLevel.Error:
|
|
env["IPFS_LOGGING"] = "ERROR"
|
|
of IpfsLogLevel.Warning:
|
|
env["IPFS_LOGGING"] = "WARNING"
|
|
of IpfsLogLevel.Notice:
|
|
env["IPFS_LOGGING"] = "NOTICE"
|
|
of IpfsLogLevel.Info:
|
|
env["IPFS_LOGGING"] = "INFO"
|
|
of IpfsLogLevel.Debug:
|
|
env["IPFS_LOGGING"] = "DEBUG"
|
|
of IpfsLogLevel.Trace:
|
|
env["IPFS_LOGGING"] = "DEBUG"
|
|
env["GOLOG_TRACING_FILE"] = logFile
|
|
if PSGossipSub in api.flags:
|
|
args.add("-pubsub")
|
|
args.add("-pubsubRouter=gossipsub")
|
|
if gossipsubHeartbeatInterval != 0:
|
|
let param = $gossipsubHeartbeatInterval & "ms"
|
|
args.add("-gossipsubHeartbeatInterval=" & param)
|
|
if gossipsubHeartbeatDelay != 0:
|
|
let param = $gossipsubHeartbeatDelay & "ms"
|
|
args.add("-gossipsubHeartbeatInitialDelay=" & param)
|
|
if PSFloodSub in api.flags:
|
|
args.add("-pubsub")
|
|
args.add("-pubsubRouter=floodsub")
|
|
if api.flags * {PSFloodSub, PSGossipSub} != {}:
|
|
if PSNoSign in api.flags:
|
|
args.add("-pubsubSign=false")
|
|
if PSStrictSign in api.flags:
|
|
args.add("-pubsubSignStrict=true")
|
|
if NATPortMap in api.flags:
|
|
args.add("-natPortMap=true")
|
|
if AutoNAT in api.flags:
|
|
args.add("-autonat=true")
|
|
if AutoRelay in api.flags:
|
|
args.add("-autoRelay=true")
|
|
if RelayActive in api.flags:
|
|
args.add("-relayActive=true")
|
|
if RelayDiscovery in api.flags:
|
|
args.add("-relayDiscovery=true")
|
|
if RelayHop in api.flags:
|
|
args.add("-relayHop=true")
|
|
if NoInlinePeerID in api.flags:
|
|
args.add("-noInlinePeerID=true")
|
|
if len(bootstrapNodes) > 0:
|
|
args.add("-bootstrapPeers=" & bootstrapNodes.join(","))
|
|
if len(id) != 0:
|
|
args.add("-id=" & id)
|
|
if len(hostAddresses) > 0:
|
|
var opt = "-hostAddrs="
|
|
for i, address in hostAddresses:
|
|
if i > 0: opt.add ","
|
|
opt.add $address
|
|
args.add(opt)
|
|
if len(announcedAddresses) > 0:
|
|
var opt = "-announceAddrs="
|
|
for i, address in announcedAddresses:
|
|
if i > 0: opt.add ","
|
|
opt.add $address
|
|
args.add(opt)
|
|
args.add("-noise=true")
|
|
args.add("-quic=false")
|
|
args.add("-listen=" & $api.address)
|
|
|
|
# We are trying to get absolute daemon path.
|
|
let cmd = findExe(daemon)
|
|
trace "p2pd cmd", cmd, args
|
|
if len(cmd) == 0:
|
|
raise newException(DaemonLocalError, "Could not find daemon executable!")
|
|
|
|
# Starting daemon process
|
|
# echo "Starting ", cmd, " ", args.join(" ")
|
|
api.process = startProcess(cmd, "", args, env, {poParentStreams})
|
|
# Waiting until daemon will not be bound to control socket.
|
|
while true:
|
|
if not api.process.running():
|
|
raise newException(DaemonLocalError,
|
|
"Daemon executable could not be started!")
|
|
let res = await socketExists(api.address)
|
|
if res:
|
|
break
|
|
await sleepAsync(500.milliseconds)
|
|
|
|
if WaitBootstrap in api.flags:
|
|
while true:
|
|
var peers = await listPeers(api)
|
|
if len(peers) >= peersRequired:
|
|
break
|
|
await sleepAsync(1.seconds)
|
|
|
|
result = api
|
|
|
|
proc close*(stream: P2PStream) {.async.} =
|
|
## Close ``stream``.
|
|
if P2PStreamFlags.Closed notin stream.flags:
|
|
await stream.transp.closeWait()
|
|
stream.transp = nil
|
|
stream.flags.incl(P2PStreamFlags.Closed)
|
|
else:
|
|
raise newException(DaemonLocalError, "Stream is already closed!")
|
|
|
|
proc close*(api: DaemonAPI) {.async.} =
|
|
## Shutdown connections to `go-libp2p-daemon` control socket.
|
|
# await api.pool.close()
|
|
# Closing all pending servers.
|
|
if len(api.servers) > 0:
|
|
var pending = newSeq[Future[void]]()
|
|
for server in api.servers:
|
|
server.server.stop()
|
|
server.server.close()
|
|
pending.add(server.server.join())
|
|
await allFutures(pending)
|
|
for server in api.servers:
|
|
let address = initTAddress(server.address).tryGet()
|
|
discard tryRemoveFile($address)
|
|
api.servers.setLen(0)
|
|
# Closing daemon's process.
|
|
if NoProcessCtrl notin api.flags:
|
|
when defined(windows):
|
|
api.process.kill()
|
|
else:
|
|
api.process.terminate()
|
|
discard api.process.waitForExit()
|
|
# Attempt to delete unix socket endpoint.
|
|
let address = initTAddress(api.address).tryGet()
|
|
if address.family == AddressFamily.Unix:
|
|
discard tryRemoveFile($address)
|
|
|
|
template withMessage(m, body: untyped): untyped =
|
|
let kind = m.checkResponse()
|
|
if kind == ResponseKind.Error:
|
|
raise newException(DaemonRemoteError, m.getErrorMessage())
|
|
elif kind == ResponseKind.Malformed:
|
|
raise newException(DaemonLocalError, "Malformed message received!")
|
|
else:
|
|
body
|
|
|
|
proc transactMessage(transp: StreamTransport,
|
|
pb: ProtoBuffer): Future[ProtoBuffer] {.async.} =
|
|
let length = pb.getLen()
|
|
let res = await transp.write(pb.getPtr(), length)
|
|
if res != length:
|
|
raise newException(DaemonLocalError, "Could not send message to daemon!")
|
|
var message = await transp.recvMessage()
|
|
if len(message) == 0:
|
|
raise newException(DaemonLocalError, "Incorrect or empty message received!")
|
|
result = initProtoBuffer(message)
|
|
|
|
proc getPeerInfo(pb: var ProtoBuffer): PeerInfo =
|
|
## Get PeerInfo object from ``pb``.
|
|
result.addresses = newSeq[MultiAddress]()
|
|
if pb.getValue(1, result.peer) == -1:
|
|
raise newException(DaemonLocalError, "Missing required field `peer`!")
|
|
var address = newSeq[byte]()
|
|
while pb.getBytes(2, address) != -1:
|
|
if len(address) != 0:
|
|
var copyaddr = address
|
|
result.addresses.add(MultiAddress.init(copyaddr).tryGet())
|
|
address.setLen(0)
|
|
|
|
proc identity*(api: DaemonAPI): Future[PeerInfo] {.async.} =
|
|
## Get Node identity information
|
|
var transp = await api.newConnection()
|
|
try:
|
|
var pb = await transactMessage(transp, requestIdentity())
|
|
pb.withMessage() do:
|
|
let res = pb.enterSubmessage()
|
|
if res == cast[int](ResponseType.IDENTITY):
|
|
result = pb.getPeerInfo()
|
|
finally:
|
|
await api.closeConnection(transp)
|
|
|
|
proc connect*(api: DaemonAPI, peer: PeerID,
|
|
addresses: seq[MultiAddress],
|
|
timeout = 0) {.async.} =
|
|
## Connect to remote peer with id ``peer`` and addresses ``addresses``.
|
|
var transp = await api.newConnection()
|
|
try:
|
|
var pb = await transp.transactMessage(requestConnect(peer, addresses,
|
|
timeout))
|
|
pb.withMessage() do:
|
|
discard
|
|
except:
|
|
await api.closeConnection(transp)
|
|
|
|
proc disconnect*(api: DaemonAPI, peer: PeerID) {.async.} =
|
|
## Disconnect from remote peer with id ``peer``.
|
|
var transp = await api.newConnection()
|
|
try:
|
|
var pb = await transp.transactMessage(requestDisconnect(peer))
|
|
pb.withMessage() do:
|
|
discard
|
|
finally:
|
|
await api.closeConnection(transp)
|
|
|
|
proc openStream*(api: DaemonAPI, peer: PeerID,
|
|
protocols: seq[string],
|
|
timeout = 0): Future[P2PStream] {.async.} =
|
|
## Open new stream to peer ``peer`` using one of the protocols in
|
|
## ``protocols``. Returns ``StreamTransport`` for the stream.
|
|
var transp = await api.newConnection()
|
|
var stream = new P2PStream
|
|
try:
|
|
var pb = await transp.transactMessage(requestStreamOpen(peer, protocols,
|
|
timeout))
|
|
pb.withMessage() do:
|
|
var res = pb.enterSubmessage()
|
|
if res == cast[int](ResponseType.STREAMINFO):
|
|
# stream.peer = newSeq[byte]()
|
|
var raddress = newSeq[byte]()
|
|
stream.protocol = ""
|
|
if pb.getValue(1, stream.peer) == -1:
|
|
raise newException(DaemonLocalError, "Missing `peer` field!")
|
|
if pb.getLengthValue(2, raddress) == -1:
|
|
raise newException(DaemonLocalError, "Missing `address` field!")
|
|
stream.raddress = MultiAddress.init(raddress).tryGet()
|
|
if pb.getLengthValue(3, stream.protocol) == -1:
|
|
raise newException(DaemonLocalError, "Missing `proto` field!")
|
|
stream.flags.incl(Outbound)
|
|
stream.transp = transp
|
|
result = stream
|
|
except Exception as exc:
|
|
await api.closeConnection(transp)
|
|
raise exc
|
|
|
|
proc streamHandler(server: StreamServer, transp: StreamTransport) {.async.} =
|
|
var api = getUserData[DaemonAPI](server)
|
|
var message = await transp.recvMessage()
|
|
var pb = initProtoBuffer(message)
|
|
var stream = new P2PStream
|
|
var raddress = newSeq[byte]()
|
|
stream.protocol = ""
|
|
if pb.getValue(1, stream.peer) == -1:
|
|
raise newException(DaemonLocalError, "Missing `peer` field!")
|
|
if pb.getLengthValue(2, raddress) == -1:
|
|
raise newException(DaemonLocalError, "Missing `address` field!")
|
|
stream.raddress = MultiAddress.init(raddress).tryGet()
|
|
if pb.getLengthValue(3, stream.protocol) == -1:
|
|
raise newException(DaemonLocalError, "Missing `proto` field!")
|
|
stream.flags.incl(Inbound)
|
|
stream.transp = transp
|
|
if len(stream.protocol) > 0:
|
|
var handler = api.handlers.getOrDefault(stream.protocol)
|
|
if not isNil(handler):
|
|
asyncCheck handler(api, stream)
|
|
|
|
proc addHandler*(api: DaemonAPI, protocols: seq[string],
|
|
handler: P2PStreamCallback) {.async.} =
|
|
## Add stream handler ``handler`` for set of protocols ``protocols``.
|
|
var transp = await api.newConnection()
|
|
let maddress = await getSocket(api.pattern, addr api.ucounter)
|
|
var server = createStreamServer(maddress, streamHandler, udata = api)
|
|
try:
|
|
for item in protocols:
|
|
api.handlers[item] = handler
|
|
server.start()
|
|
var pb = await transp.transactMessage(requestStreamHandler(maddress,
|
|
protocols))
|
|
pb.withMessage() do:
|
|
api.servers.add(P2PServer(server: server, address: maddress))
|
|
except Exception as exc:
|
|
for item in protocols:
|
|
api.handlers.del(item)
|
|
server.stop()
|
|
server.close()
|
|
await server.join()
|
|
raise exc
|
|
finally:
|
|
await api.closeConnection(transp)
|
|
|
|
proc listPeers*(api: DaemonAPI): Future[seq[PeerInfo]] {.async.} =
|
|
## Get list of remote peers to which we are currently connected.
|
|
var transp = await api.newConnection()
|
|
try:
|
|
var pb = await transp.transactMessage(requestListPeers())
|
|
pb.withMessage() do:
|
|
result = newSeq[PeerInfo]()
|
|
var res = pb.enterSubmessage()
|
|
while res != 0:
|
|
if res == cast[int](ResponseType.PEERINFO):
|
|
var peer = pb.getPeerInfo()
|
|
result.add(peer)
|
|
else:
|
|
pb.skipSubmessage()
|
|
res = pb.enterSubmessage()
|
|
finally:
|
|
await api.closeConnection(transp)
|
|
|
|
proc cmTagPeer*(api: DaemonAPI, peer: PeerID, tag: string,
|
|
weight: int) {.async.} =
|
|
## Tag peer with id ``peer`` using ``tag`` and ``weight``.
|
|
var transp = await api.newConnection()
|
|
try:
|
|
var pb = await transp.transactMessage(requestCMTagPeer(peer, tag, weight))
|
|
withMessage(pb) do:
|
|
discard
|
|
finally:
|
|
await api.closeConnection(transp)
|
|
|
|
proc cmUntagPeer*(api: DaemonAPI, peer: PeerID, tag: string) {.async.} =
|
|
## Remove tag ``tag`` from peer with id ``peer``.
|
|
var transp = await api.newConnection()
|
|
try:
|
|
var pb = await transp.transactMessage(requestCMUntagPeer(peer, tag))
|
|
withMessage(pb) do:
|
|
discard
|
|
finally:
|
|
await api.closeConnection(transp)
|
|
|
|
proc cmTrimPeers*(api: DaemonAPI) {.async.} =
|
|
## Trim all connections.
|
|
var transp = await api.newConnection()
|
|
try:
|
|
var pb = await transp.transactMessage(requestCMTrim())
|
|
withMessage(pb) do:
|
|
discard
|
|
finally:
|
|
await api.closeConnection(transp)
|
|
|
|
proc dhtGetSinglePeerInfo(pb: var ProtoBuffer): PeerInfo =
|
|
if pb.enterSubmessage() == 2:
|
|
result = pb.getPeerInfo()
|
|
else:
|
|
raise newException(DaemonLocalError, "Missing required field `peer`!")
|
|
|
|
proc dhtGetSingleValue(pb: var ProtoBuffer): seq[byte] =
|
|
result = newSeq[byte]()
|
|
if pb.getLengthValue(3, result) == -1:
|
|
raise newException(DaemonLocalError, "Missing field `value`!")
|
|
|
|
proc dhtGetSinglePublicKey(pb: var ProtoBuffer): PublicKey =
|
|
if pb.getValue(3, result) == -1:
|
|
raise newException(DaemonLocalError, "Missing field `value`!")
|
|
|
|
proc dhtGetSinglePeerID(pb: var ProtoBuffer): PeerID =
|
|
if pb.getValue(3, result) == -1:
|
|
raise newException(DaemonLocalError, "Missing field `value`!")
|
|
|
|
proc enterDhtMessage(pb: var ProtoBuffer, rt: DHTResponseType) {.inline.} =
|
|
var dtype: uint
|
|
var res = pb.enterSubmessage()
|
|
if res == cast[int](ResponseType.DHT):
|
|
if pb.getVarintValue(1, dtype) == 0:
|
|
raise newException(DaemonLocalError, "Missing required DHT field `type`!")
|
|
if dtype != cast[uint](rt):
|
|
raise newException(DaemonLocalError, "Wrong DHT answer type! ")
|
|
else:
|
|
raise newException(DaemonLocalError, "Wrong message type!")
|
|
|
|
proc enterPsMessage(pb: var ProtoBuffer) {.inline.} =
|
|
var res = pb.enterSubmessage()
|
|
if res != cast[int](ResponseType.PUBSUB):
|
|
raise newException(DaemonLocalError, "Wrong message type!")
|
|
|
|
proc getDhtMessageType(pb: var ProtoBuffer): DHTResponseType {.inline.} =
|
|
var dtype: uint
|
|
if pb.getVarintValue(1, dtype) == 0:
|
|
raise newException(DaemonLocalError, "Missing required DHT field `type`!")
|
|
if dtype == cast[uint](DHTResponseType.VALUE):
|
|
result = DHTResponseType.VALUE
|
|
elif dtype == cast[uint](DHTResponseType.END):
|
|
result = DHTResponseType.END
|
|
else:
|
|
raise newException(DaemonLocalError, "Wrong DHT answer type!")
|
|
|
|
proc dhtFindPeer*(api: DaemonAPI, peer: PeerID,
|
|
timeout = 0): Future[PeerInfo] {.async.} =
|
|
## Find peer with id ``peer`` and return peer information ``PeerInfo``.
|
|
##
|
|
## You can specify timeout for DHT request with ``timeout`` value. ``0`` value
|
|
## means no timeout.
|
|
var transp = await api.newConnection()
|
|
try:
|
|
var pb = await transp.transactMessage(requestDHTFindPeer(peer, timeout))
|
|
withMessage(pb) do:
|
|
pb.enterDhtMessage(DHTResponseType.VALUE)
|
|
result = pb.dhtGetSinglePeerInfo()
|
|
finally:
|
|
await api.closeConnection(transp)
|
|
|
|
proc dhtGetPublicKey*(api: DaemonAPI, peer: PeerID,
|
|
timeout = 0): Future[PublicKey] {.async.} =
|
|
## Get peer's public key from peer with id ``peer``.
|
|
##
|
|
## You can specify timeout for DHT request with ``timeout`` value. ``0`` value
|
|
## means no timeout.
|
|
var transp = await api.newConnection()
|
|
try:
|
|
var pb = await transp.transactMessage(requestDHTGetPublicKey(peer, timeout))
|
|
withMessage(pb) do:
|
|
pb.enterDhtMessage(DHTResponseType.VALUE)
|
|
result = pb.dhtGetSinglePublicKey()
|
|
finally:
|
|
await api.closeConnection(transp)
|
|
|
|
proc dhtGetValue*(api: DaemonAPI, key: string,
|
|
timeout = 0): Future[seq[byte]] {.async.} =
|
|
## Get value associated with ``key``.
|
|
##
|
|
## You can specify timeout for DHT request with ``timeout`` value. ``0`` value
|
|
## means no timeout.
|
|
var transp = await api.newConnection()
|
|
try:
|
|
var pb = await transp.transactMessage(requestDHTGetValue(key, timeout))
|
|
withMessage(pb) do:
|
|
pb.enterDhtMessage(DHTResponseType.VALUE)
|
|
result = pb.dhtGetSingleValue()
|
|
finally:
|
|
await api.closeConnection(transp)
|
|
|
|
proc dhtPutValue*(api: DaemonAPI, key: string, value: seq[byte],
|
|
timeout = 0) {.async.} =
|
|
## Associate ``value`` with ``key``.
|
|
##
|
|
## You can specify timeout for DHT request with ``timeout`` value. ``0`` value
|
|
## means no timeout.
|
|
var transp = await api.newConnection()
|
|
try:
|
|
var pb = await transp.transactMessage(requestDHTPutValue(key, value,
|
|
timeout))
|
|
withMessage(pb) do:
|
|
discard
|
|
finally:
|
|
await api.closeConnection(transp)
|
|
|
|
proc dhtProvide*(api: DaemonAPI, cid: Cid, timeout = 0) {.async.} =
|
|
## Provide content with id ``cid``.
|
|
##
|
|
## You can specify timeout for DHT request with ``timeout`` value. ``0`` value
|
|
## means no timeout.
|
|
var transp = await api.newConnection()
|
|
try:
|
|
var pb = await transp.transactMessage(requestDHTProvide(cid, timeout))
|
|
withMessage(pb) do:
|
|
discard
|
|
finally:
|
|
await api.closeConnection(transp)
|
|
|
|
proc dhtFindPeersConnectedToPeer*(api: DaemonAPI, peer: PeerID,
|
|
timeout = 0): Future[seq[PeerInfo]] {.async.} =
|
|
## Find peers which are connected to peer with id ``peer``.
|
|
##
|
|
## You can specify timeout for DHT request with ``timeout`` value. ``0`` value
|
|
## means no timeout.
|
|
var transp = await api.newConnection()
|
|
var list = newSeq[PeerInfo]()
|
|
try:
|
|
let spb = requestDHTFindPeersConnectedToPeer(peer, timeout)
|
|
var pb = await transp.transactMessage(spb)
|
|
withMessage(pb) do:
|
|
pb.enterDhtMessage(DHTResponseType.BEGIN)
|
|
while true:
|
|
var message = await transp.recvMessage()
|
|
if len(message) == 0:
|
|
break
|
|
var cpb = initProtoBuffer(message)
|
|
if cpb.getDhtMessageType() == DHTResponseType.END:
|
|
break
|
|
list.add(cpb.dhtGetSinglePeerInfo())
|
|
result = list
|
|
finally:
|
|
await api.closeConnection(transp)
|
|
|
|
proc dhtGetClosestPeers*(api: DaemonAPI, key: string,
|
|
timeout = 0): Future[seq[PeerID]] {.async.} =
|
|
## Get closest peers for ``key``.
|
|
##
|
|
## You can specify timeout for DHT request with ``timeout`` value. ``0`` value
|
|
## means no timeout.
|
|
var transp = await api.newConnection()
|
|
var list = newSeq[PeerID]()
|
|
try:
|
|
let spb = requestDHTGetClosestPeers(key, timeout)
|
|
var pb = await transp.transactMessage(spb)
|
|
withMessage(pb) do:
|
|
pb.enterDhtMessage(DHTResponseType.BEGIN)
|
|
while true:
|
|
var message = await transp.recvMessage()
|
|
if len(message) == 0:
|
|
break
|
|
var cpb = initProtoBuffer(message)
|
|
if cpb.getDhtMessageType() == DHTResponseType.END:
|
|
break
|
|
list.add(cpb.dhtGetSinglePeerID())
|
|
result = list
|
|
finally:
|
|
await api.closeConnection(transp)
|
|
|
|
proc dhtFindProviders*(api: DaemonAPI, cid: Cid, count: uint32,
|
|
timeout = 0): Future[seq[PeerInfo]] {.async.} =
|
|
## Get ``count`` providers for content with id ``cid``.
|
|
##
|
|
## You can specify timeout for DHT request with ``timeout`` value. ``0`` value
|
|
## means no timeout.
|
|
var transp = await api.newConnection()
|
|
var list = newSeq[PeerInfo]()
|
|
try:
|
|
let spb = requestDHTFindProviders(cid, count, timeout)
|
|
var pb = await transp.transactMessage(spb)
|
|
withMessage(pb) do:
|
|
pb.enterDhtMessage(DHTResponseType.BEGIN)
|
|
while true:
|
|
var message = await transp.recvMessage()
|
|
if len(message) == 0:
|
|
break
|
|
var cpb = initProtoBuffer(message)
|
|
if cpb.getDhtMessageType() == DHTResponseType.END:
|
|
break
|
|
list.add(cpb.dhtGetSinglePeerInfo())
|
|
result = list
|
|
finally:
|
|
await api.closeConnection(transp)
|
|
|
|
proc dhtSearchValue*(api: DaemonAPI, key: string,
|
|
timeout = 0): Future[seq[seq[byte]]] {.async.} =
|
|
## Search for value with ``key``, return list of values found.
|
|
##
|
|
## You can specify timeout for DHT request with ``timeout`` value. ``0`` value
|
|
## means no timeout.
|
|
var transp = await api.newConnection()
|
|
var list = newSeq[seq[byte]]()
|
|
try:
|
|
var pb = await transp.transactMessage(requestDHTSearchValue(key, timeout))
|
|
withMessage(pb) do:
|
|
pb.enterDhtMessage(DHTResponseType.BEGIN)
|
|
while true:
|
|
var message = await transp.recvMessage()
|
|
if len(message) == 0:
|
|
break
|
|
var cpb = initProtoBuffer(message)
|
|
if cpb.getDhtMessageType() == DHTResponseType.END:
|
|
break
|
|
list.add(cpb.dhtGetSingleValue())
|
|
result = list
|
|
finally:
|
|
await api.closeConnection(transp)
|
|
|
|
proc pubsubGetTopics*(api: DaemonAPI): Future[seq[string]] {.async.} =
|
|
## Get list of topics this node is subscribed to.
|
|
var transp = await api.newConnection()
|
|
try:
|
|
var pb = await transp.transactMessage(requestPSGetTopics())
|
|
withMessage(pb) do:
|
|
pb.enterPsMessage()
|
|
var topics = newSeq[string]()
|
|
var topic = ""
|
|
while pb.getString(1, topic) != -1:
|
|
topics.add(topic)
|
|
topic.setLen(0)
|
|
result = topics
|
|
finally:
|
|
await api.closeConnection(transp)
|
|
|
|
proc pubsubListPeers*(api: DaemonAPI,
|
|
topic: string): Future[seq[PeerID]] {.async.} =
|
|
## Get list of peers we are connected to and which also subscribed to topic
|
|
## ``topic``.
|
|
var transp = await api.newConnection()
|
|
try:
|
|
var pb = await transp.transactMessage(requestPSListPeers(topic))
|
|
withMessage(pb) do:
|
|
var peer: PeerID
|
|
pb.enterPsMessage()
|
|
var peers = newSeq[PeerID]()
|
|
while pb.getValue(2, peer) != -1:
|
|
peers.add(peer)
|
|
result = peers
|
|
finally:
|
|
await api.closeConnection(transp)
|
|
|
|
proc pubsubPublish*(api: DaemonAPI, topic: string,
|
|
value: seq[byte]) {.async.} =
|
|
## Get list of peer identifiers which are subscribed to topic ``topic``.
|
|
var transp = await api.newConnection()
|
|
try:
|
|
var pb = await transp.transactMessage(requestPSPublish(topic, value))
|
|
withMessage(pb) do:
|
|
discard
|
|
finally:
|
|
await api.closeConnection(transp)
|
|
|
|
proc getPubsubMessage*(pb: var ProtoBuffer): PubSubMessage =
|
|
result.data = newSeq[byte]()
|
|
result.seqno = newSeq[byte]()
|
|
discard pb.getValue(1, result.peer)
|
|
discard pb.getBytes(2, result.data)
|
|
discard pb.getBytes(3, result.seqno)
|
|
var item = newSeq[byte]()
|
|
while true:
|
|
if pb.getBytes(4, item) == -1:
|
|
break
|
|
var copyitem = item
|
|
var stritem = cast[string](copyitem)
|
|
if len(result.topics) == 0:
|
|
result.topics = newSeq[string]()
|
|
result.topics.add(stritem)
|
|
item.setLen(0)
|
|
discard pb.getValue(5, result.signature)
|
|
discard pb.getValue(6, result.key)
|
|
|
|
proc pubsubLoop(api: DaemonAPI, ticket: PubsubTicket) {.async.} =
|
|
while true:
|
|
var pbmessage = await ticket.transp.recvMessage()
|
|
if len(pbmessage) == 0:
|
|
break
|
|
var pb = initProtoBuffer(pbmessage)
|
|
var message = pb.getPubsubMessage()
|
|
## We can do here `await` too
|
|
let res = await ticket.handler(api, ticket, message)
|
|
if not res:
|
|
ticket.transp.close()
|
|
await ticket.transp.join()
|
|
break
|
|
|
|
proc pubsubSubscribe*(api: DaemonAPI, topic: string,
|
|
handler: P2PPubSubCallback): Future[PubsubTicket] {.async.} =
|
|
## Subscribe to topic ``topic``.
|
|
var transp = await api.newConnection()
|
|
try:
|
|
var pb = await transp.transactMessage(requestPSSubscribe(topic))
|
|
pb.withMessage() do:
|
|
var ticket = new PubsubTicket
|
|
ticket.topic = topic
|
|
ticket.handler = handler
|
|
ticket.transp = transp
|
|
asyncCheck pubsubLoop(api, ticket)
|
|
result = ticket
|
|
except Exception as exc:
|
|
await api.closeConnection(transp)
|
|
raise exc
|
|
|
|
proc shortLog*(pinfo: PeerInfo): string =
|
|
## Get string representation of ``PeerInfo`` object.
|
|
result = newStringOfCap(128)
|
|
result.add("{PeerID: '")
|
|
result.add($pinfo.peer.shortLog())
|
|
result.add("' Addresses: [")
|
|
let length = len(pinfo.addresses)
|
|
for i in 0..<length:
|
|
result.add("'")
|
|
result.add($pinfo.addresses[i])
|
|
result.add("'")
|
|
if i < length - 1:
|
|
result.add(", ")
|
|
result.add("]}")
|
|
if len(pinfo.addresses) > 0:
|
|
result = result
|