mirror of https://github.com/status-im/nim-eth.git
61 lines
2.1 KiB
Nim
61 lines
2.1 KiB
Nim
import
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stew/shims/net, bearssl,
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eth/[keys, rlp],
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eth/p2p/discoveryv5/[enr, node, routing_table]
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const UseDiscv51* {.booldefine.} = false
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when UseDiscv51:
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import
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eth/p2p/discoveryv5/[typesv1, encodingv1],
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eth/p2p/discoveryv5/protocolv1 as discv5_protocol
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else:
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import
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eth/p2p/discoveryv5/[types, encoding],
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eth/p2p/discoveryv5/protocol as discv5_protocol
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proc localAddress*(port: int): Address =
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Address(ip: ValidIpAddress.init("127.0.0.1"), port: Port(port))
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proc initDiscoveryNode*(rng: ref BrHmacDrbgContext, privKey: PrivateKey,
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address: Address,
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bootstrapRecords: openarray[Record] = [],
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localEnrFields: openarray[(string, seq[byte])] = [],
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previousRecord = none[enr.Record]()):
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discv5_protocol.Protocol =
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result = newProtocol(privKey,
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some(address.ip),
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address.port, address.port,
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bootstrapRecords = bootstrapRecords,
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localEnrFields = localEnrFields,
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previousRecord = previousRecord, rng = rng)
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result.open()
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proc nodeIdInNodes*(id: NodeId, nodes: openarray[Node]): bool =
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for n in nodes:
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if id == n.id: return true
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proc generateNode*(privKey: PrivateKey, port: int = 20302,
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localEnrFields: openarray[FieldPair] = []): Node =
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let port = Port(port)
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let enr = enr.Record.init(1, privKey, some(ValidIpAddress.init("127.0.0.1")),
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port, port, localEnrFields).expect("Properly intialized private key")
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result = newNode(enr).expect("Properly initialized node")
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proc nodeAtDistance*(n: Node, rng: var BrHmacDrbgContext, d: uint32): Node =
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while true:
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let node = generateNode(PrivateKey.random(rng))
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if logDist(n.id, node.id) == d:
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return node
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proc nodesAtDistance*(
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n: Node, rng: var BrHmacDrbgContext, d: uint32, amount: int): seq[Node] =
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for i in 0..<amount:
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result.add(nodeAtDistance(n, rng, d))
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proc addSeenNode*(d: discv5_protocol.Protocol, n: Node): bool =
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# Add it as a seen node, warning: for testing convenience only!
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n.seen = true
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d.addNode(n)
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