@waku/relay/dist/message_validator.js

Relay Protocol for Waku

import { TopicValidatorResult } from "@libp2p/interface";
import { proto_message as proto } from "@waku/proto";
import { Logger } from "@waku/utils";
const log = new Logger("relay");
export function messageValidator(peer, message) {
    const startTime = performance.now();
    log.info(`validating message from ${peer} received on ${message.topic}`);
    let result = TopicValidatorResult.Accept;
    try {
        const protoMessage = proto.WakuMessage.decode(message.data);
        if (!protoMessage.contentTopic ||
            !protoMessage.contentTopic.length ||
            !protoMessage.payload ||
            !protoMessage.payload.length) {
            result = TopicValidatorResult.Reject;
        }
    }
    catch (e) {
        result = TopicValidatorResult.Reject;
    }
    const endTime = performance.now();
    const timeTakenMs = endTime - startTime;
    if (timeTakenMs > 100) {
        log.warn(`message validation took ${timeTakenMs}ms for peer ${peer} on topic ${message.topic}. This should be less than 100ms.`);
    }
    else {
        log.info(`message validation took ${timeTakenMs}ms for peer ${peer} on topic ${message.topic}`);
    }
    return result;
}
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