mirror of https://github.com/waku-org/nwaku.git
43 lines
1.4 KiB
Nim
43 lines
1.4 KiB
Nim
{.push raises: [Defect].}
|
|
|
|
# Collection of utilities related to Waku peers
|
|
import
|
|
std/strutils,
|
|
libp2p/multiaddress,
|
|
libp2p/peerinfo
|
|
|
|
proc initAddress(T: type MultiAddress, str: string): T {.raises: [Defect, ValueError, LPError].}=
|
|
# @TODO: Rather than raising exceptions, this should return a Result
|
|
let address = MultiAddress.init(str).tryGet()
|
|
if IPFS.match(address) and matchPartial(multiaddress.TCP, address):
|
|
return address
|
|
else:
|
|
raise newException(ValueError,
|
|
"Invalid bootstrap node multi-address")
|
|
|
|
## Parses a fully qualified peer multiaddr, in the
|
|
## format `(ip4|ip6)/tcp/p2p`, into dialable PeerInfo
|
|
proc parsePeerInfo*(address: string): PeerInfo {.raises: [Defect, ValueError, LPError].}=
|
|
let multiAddr = MultiAddress.initAddress(address)
|
|
|
|
var
|
|
ipPart, tcpPart, p2pPart: MultiAddress
|
|
|
|
for addrPart in multiAddr.items():
|
|
case addrPart[].protoName()[]
|
|
of "ip4", "ip6":
|
|
ipPart = addrPart.tryGet()
|
|
of "tcp":
|
|
tcpPart = addrPart.tryGet()
|
|
of "p2p":
|
|
p2pPart = addrPart.tryGet()
|
|
|
|
# nim-libp2p dialing requires remote peers to be initialised with a peerId and a wire address
|
|
let
|
|
peerIdStr = p2pPart.toString()[].split("/")[^1]
|
|
wireAddr = ipPart & tcpPart
|
|
|
|
if (not wireAddr.isWire()):
|
|
raise newException(ValueError, "Invalid node multi-address")
|
|
|
|
return PeerInfo.init(peerIdStr, [wireAddr]) |