mirror of https://github.com/waku-org/nwaku.git
152 lines
4.7 KiB
Nim
152 lines
4.7 KiB
Nim
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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import
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std/[options, sequtils],
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stew/results,
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stew/shims/net,
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libp2p/multiaddress
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import
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../../waku/v2/waku_core/peers
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import
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../waku_enr
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type NetConfig* = object
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hostAddress*: MultiAddress
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wsHostAddress*: Option[MultiAddress]
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hostExtAddress*: Option[MultiAddress]
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wsExtAddress*: Option[MultiAddress]
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wssEnabled*: bool
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extIp*: Option[ValidIpAddress]
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extPort*: Option[Port]
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dns4DomainName*: Option[string]
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announcedAddresses*: seq[MultiAddress]
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extMultiAddrs*: seq[MultiAddress]
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enrMultiAddrs*: seq[MultiAddress]
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enrIp*: Option[ValidIpAddress]
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enrPort*: Option[Port]
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discv5UdpPort*: Option[Port]
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wakuFlags*: Option[CapabilitiesBitfield]
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bindIp*: ValidIpAddress
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bindPort*: Port
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type NetConfigResult* = Result[NetConfig, string]
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template ip4TcpEndPoint(address, port): MultiAddress =
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MultiAddress.init(address, tcpProtocol, port)
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template dns4Ma(dns4DomainName: string): MultiAddress =
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MultiAddress.init("/dns4/" & dns4DomainName).tryGet()
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template tcpPortMa(port: Port): MultiAddress =
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MultiAddress.init("/tcp/" & $port).tryGet()
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template dns4TcpEndPoint(dns4DomainName: string, port: Port): MultiAddress =
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dns4Ma(dns4DomainName) & tcpPortMa(port)
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template wsFlag(wssEnabled: bool): MultiAddress =
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if wssEnabled: MultiAddress.init("/wss").tryGet()
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else: MultiAddress.init("/ws").tryGet()
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proc init*(T: type NetConfig,
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bindIp: ValidIpAddress,
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bindPort: Port,
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extIp = none(ValidIpAddress),
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extPort = none(Port),
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extMultiAddrs = newSeq[MultiAddress](),
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wsBindPort: Port = Port(8000),
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wsEnabled: bool = false,
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wssEnabled: bool = false,
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dns4DomainName = none(string),
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discv5UdpPort = none(Port),
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wakuFlags = none(CapabilitiesBitfield)): NetConfigResult =
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## Initialize and validate waku node network configuration
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# Bind addresses
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let hostAddress = ip4TcpEndPoint(bindIp, bindPort)
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var wsHostAddress = none(MultiAddress)
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if wsEnabled or wssEnabled:
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try:
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wsHostAddress = some(ip4TcpEndPoint(bindIp, wsbindPort) & wsFlag(wssEnabled))
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except CatchableError:
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return err(getCurrentExceptionMsg())
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let enrIp = if extIp.isSome(): extIp else: some(bindIp)
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let enrPort = if extPort.isSome(): extPort else: some(bindPort)
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# Setup external addresses, if available
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var hostExtAddress, wsExtAddress = none(MultiAddress)
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if dns4DomainName.isSome():
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# Use dns4 for externally announced addresses
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try:
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hostExtAddress = some(dns4TcpEndPoint(dns4DomainName.get(), extPort.get()))
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except CatchableError:
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return err(getCurrentExceptionMsg())
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if wsHostAddress.isSome():
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try:
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wsExtAddress = some(dns4TcpEndPoint(dns4DomainName.get(), wsBindPort) & wsFlag(wssEnabled))
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except CatchableError:
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return err(getCurrentExceptionMsg())
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else:
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# No public domain name, use ext IP if available
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if extIp.isSome() and extPort.isSome():
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hostExtAddress = some(ip4TcpEndPoint(extIp.get(), extPort.get()))
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if wsHostAddress.isSome():
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try:
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wsExtAddress = some(ip4TcpEndPoint(extIp.get(), wsBindPort) & wsFlag(wssEnabled))
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except CatchableError:
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return err(getCurrentExceptionMsg())
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var announcedAddresses = newSeq[MultiAddress]()
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if hostExtAddress.isSome():
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announcedAddresses.add(hostExtAddress.get())
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else:
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announcedAddresses.add(hostAddress) # We always have at least a bind address for the host
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# External multiaddrs that the operator may have configured
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if extMultiAddrs.len > 0:
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announcedAddresses.add(extMultiAddrs)
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if wsExtAddress.isSome():
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announcedAddresses.add(wsExtAddress.get())
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elif wsHostAddress.isSome():
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announcedAddresses.add(wsHostAddress.get())
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let
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# enrMultiaddrs are just addresses which cannot be represented in ENR, as described in
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# https://rfc.vac.dev/spec/31/#many-connection-types
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enrMultiaddrs = announcedAddresses.filterIt(it.hasProtocol("dns4") or
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it.hasProtocol("dns6") or
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it.hasProtocol("ws") or
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it.hasProtocol("wss"))
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ok(NetConfig(
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hostAddress: hostAddress,
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wsHostAddress: wsHostAddress,
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hostExtAddress: hostExtAddress,
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wsExtAddress: wsExtAddress,
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extIp: extIp,
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extPort: extPort,
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wssEnabled: wssEnabled,
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dns4DomainName: dns4DomainName,
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announcedAddresses: announcedAddresses,
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extMultiAddrs: extMultiAddrs,
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enrMultiaddrs: enrMultiaddrs,
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enrIp: enrIp,
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enrPort: enrPort,
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discv5UdpPort: discv5UdpPort,
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bindIp: bindIp,
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bindPort: bindPort,
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wakuFlags: wakuFlags
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))
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