mirror of https://github.com/vacp2p/nim-libp2p.git
123 lines
3.3 KiB
Nim
123 lines
3.3 KiB
Nim
# Nim-LibP2P
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# Copyright (c) 2022 Status Research & Development GmbH
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# Licensed under either of
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# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
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# * MIT license ([LICENSE-MIT](LICENSE-MIT))
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# at your option.
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# This file may not be copied, modified, or distributed except according to
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# those terms.
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when (NimMajor, NimMinor) < (1, 4):
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{.push raises: [Defect].}
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else:
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{.push raises: [].}
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{.push public.}
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import std/[options, sequtils]
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import pkg/[chronos, chronicles, stew/results]
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import peerid, multiaddress, multicodec, crypto/crypto, routing_record, errors, utility
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export peerid, multiaddress, crypto, routing_record, errors, results
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## Our local peer info
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type
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PeerInfoError* = object of LPError
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AddressMapper* =
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proc(listenAddrs: seq[MultiAddress]): Future[seq[MultiAddress]]
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{.gcsafe, raises: [Defect].}
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PeerInfo* {.public.} = ref object
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peerId*: PeerId
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listenAddrs*: seq[MultiAddress]
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addrs: seq[MultiAddress]
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addressMappers*: seq[AddressMapper]
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protocols*: seq[string]
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protoVersion*: string
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agentVersion*: string
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privateKey*: PrivateKey
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publicKey*: PublicKey
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signedPeerRecord*: SignedPeerRecord
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func shortLog*(p: PeerInfo): auto =
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(
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peerId: $p.peerId,
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listenAddrs: mapIt(p.listenAddrs, $it),
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addrs: mapIt(p.addrs, $it),
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protocols: mapIt(p.protocols, $it),
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protoVersion: p.protoVersion,
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agentVersion: p.agentVersion,
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)
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chronicles.formatIt(PeerInfo): shortLog(it)
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proc update*(p: PeerInfo) {.async.} =
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p.addrs = p.listenAddrs
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for mapper in p.addressMappers:
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p.addrs = await mapper(p.addrs)
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let sprRes = SignedPeerRecord.init(
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p.privateKey,
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PeerRecord.init(p.peerId, p.addrs)
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)
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if sprRes.isOk:
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p.signedPeerRecord = sprRes.get()
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else:
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discard
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#info "Can't update the signed peer record"
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proc addrs*(p: PeerInfo): seq[MultiAddress] =
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p.addrs
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proc fullAddrs*(p: PeerInfo): MaResult[seq[MultiAddress]] =
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let peerIdPart = ? MultiAddress.init(multiCodec("p2p"), p.peerId.data)
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var res: seq[MultiAddress]
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for address in p.addrs:
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res.add(? concat(address, peerIdPart))
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ok(res)
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proc parseFullAddress*(ma: MultiAddress): MaResult[(PeerId, MultiAddress)] =
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let p2pPart = ? ma[^1]
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if ? p2pPart.protoCode != multiCodec("p2p"):
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return err("Missing p2p part from multiaddress!")
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let res = (
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? PeerId.init(? p2pPart.protoArgument()).orErr("invalid peerid"),
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? ma[0 .. ^2]
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)
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ok(res)
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proc parseFullAddress*(ma: string | seq[byte]): MaResult[(PeerId, MultiAddress)] =
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parseFullAddress(? MultiAddress.init(ma))
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proc new*(
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p: typedesc[PeerInfo],
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key: PrivateKey,
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listenAddrs: openArray[MultiAddress] = [],
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protocols: openArray[string] = [],
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protoVersion: string = "",
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agentVersion: string = "",
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addressMappers = newSeq[AddressMapper](),
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): PeerInfo
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{.raises: [Defect, LPError].} =
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let pubkey = try:
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key.getPublicKey().tryGet()
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except CatchableError:
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raise newException(PeerInfoError, "invalid private key")
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let peerId = PeerId.init(key).tryGet()
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let peerInfo = PeerInfo(
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peerId: peerId,
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publicKey: pubkey,
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privateKey: key,
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protoVersion: protoVersion,
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agentVersion: agentVersion,
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listenAddrs: @listenAddrs,
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protocols: @protocols,
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addressMappers: addressMappers
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)
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return peerInfo
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