@lodestar/beacon-node/lib/util/graffiti.js

A Typescript implementation of the beacon chain

import { GRAFFITI_SIZE } from "../constants/index.js";
/**
 * Parses a graffiti UTF8 string and returns a 32 bytes buffer right padded with zeros
 */
export function toGraffitiBytes(graffiti) {
    return Buffer.concat([Buffer.from(graffiti, "utf8"), Buffer.alloc(GRAFFITI_SIZE, 0)], GRAFFITI_SIZE);
}
/**
 * Converts a graffiti from 32 bytes buffer back to a UTF-8 string
 */
export function fromGraffitiBytes(graffiti) {
    return Buffer.from(graffiti.buffer, graffiti.byteOffset, graffiti.byteLength)
        .toString("utf8")
        .replaceAll("\u0000", "");
}
export function getDefaultGraffiti(consensusClientVersion, executionClientVersion, opts) {
    if (opts.private) {
        return "";
    }
    if (executionClientVersion != null) {
        const { code: executionCode, commit: executionCommit } = executionClientVersion;
        // Follow the 2-byte commit format in https://github.com/ethereum/execution-apis/pull/517#issuecomment-1918512560
        return `${executionCode}${executionCommit.slice(0, 4)}${consensusClientVersion.code}${consensusClientVersion.commit.slice(0, 4)}`;
    }
    // No EL client info available. We still want to include CL info albeit not spec compliant
    return `${consensusClientVersion.code}${consensusClientVersion.commit.slice(0, 4)}`;
}
//# sourceMappingURL=graffiti.js.map