@lodestar/beacon-node/lib/network/peers/score/utils.js

A Typescript implementation of the beacon chain

import { negativeGossipScoreIgnoreThreshold } from "../../gossip/scoringParameters.js";
import { MIN_SCORE_BEFORE_BAN, MIN_SCORE_BEFORE_DISCONNECT } from "./constants.js";
import { ScoreState } from "./interface.js";
export function scoreToState(score) {
    if (score <= MIN_SCORE_BEFORE_BAN)
        return ScoreState.Banned;
    if (score <= MIN_SCORE_BEFORE_DISCONNECT)
        return ScoreState.Disconnected;
    return ScoreState.Healthy;
}
/**
 * Utility to update gossipsub score of connected peers
 */
export function updateGossipsubScores(peerRpcScores, gossipsubScores, toIgnoreNegativePeers) {
    // sort by gossipsub score desc
    const sortedPeerIds = Array.from(gossipsubScores.keys()).sort((a, b) => (gossipsubScores.get(b) ?? 0) - (gossipsubScores.get(a) ?? 0));
    for (const peerId of sortedPeerIds) {
        const gossipsubScore = gossipsubScores.get(peerId);
        if (gossipsubScore !== undefined) {
            let ignore = false;
            if (gossipsubScore < 0 && gossipsubScore > negativeGossipScoreIgnoreThreshold && toIgnoreNegativePeers > 0) {
                // We ignore the negative score for the best negative peers so that their
                // gossipsub score can recover without getting disconnected.
                ignore = true;
                toIgnoreNegativePeers -= 1;
            }
            peerRpcScores.updateGossipsubScore(peerId, gossipsubScore, ignore);
        }
    }
}
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