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/proc/4/task/10/root/var/lang/lib/node_modules/npm/node_modules/@sigstore/sign/dist/bundler

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base.js2.3 KB · 53 lines
"use strict";Object.defineProperty(exports, "__esModule", { value: true });exports.BaseBundleBuilder = void 0;// BaseBundleBuilder is a base class for BundleBuilder implementations. It// provides a the basic wokflow for signing and witnessing an artifact.// Subclasses must implement the `package` method to assemble a valid bundle// with the generated signature and verification material.class BaseBundleBuilder {    signer;    witnesses;    constructor(options) {        this.signer = options.signer;        this.witnesses = options.witnesses;    }    // Executes the signing/witnessing process for the given artifact.    async create(artifact) {        const signature = await this.prepare(artifact).then((blob) => this.signer.sign(blob));        const bundle = await this.package(artifact, signature);        // Invoke all of the witnesses in parallel        const verificationMaterials = await Promise.all(this.witnesses.map((witness) => witness.testify(bundle.content, publicKey(signature.key))));        // Collect the verification material from all of the witnesses        const tlogEntryList = [];        const timestampList = [];        verificationMaterials.forEach(({ tlogEntries, rfc3161Timestamps }) => {            tlogEntryList.push(...(tlogEntries ?? []));            timestampList.push(...(rfc3161Timestamps ?? []));        });        // Merge the collected verification material into the bundle        bundle.verificationMaterial.tlogEntries = tlogEntryList;        bundle.verificationMaterial.timestampVerificationData = {            rfc3161Timestamps: timestampList,        };        return bundle;    }    // Override this function to apply any pre-signing transformations to the    // artifact. The returned buffer will be signed by the signer. The default    // implementation simply returns the artifact data.    async prepare(artifact) {        return artifact.data;    }}exports.BaseBundleBuilder = BaseBundleBuilder;// Extracts the public key from a KeyMaterial. Returns either the public key// or the certificate, depending on the type of key material.function publicKey(key) {    switch (key.$case) {        case 'publicKey':            return key.publicKey;        case 'x509Certificate':            return key.certificate;    }}