dkim-verifier/signature.js

DKIM Signature Verifier in TypeScript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.selectSigningHeaders = void 0;
const newSigningHeader = (header) => {
    const uniqueHeaders = [];
    header.split(":").forEach((h) => {
        if (!uniqueHeaders.includes(h)) {
            uniqueHeaders.push(h);
        }
    });
    return uniqueHeaders;
};
const selectSigningHeaders = (signingHeader, headers) => {
    const signingHeaders = newSigningHeader(signingHeader);
    return signingHeaders
        .map((h) => {
        const header = headers.find(({ key }) => key.toLowerCase() === h.toLowerCase());
        if (header) {
            return header;
        }
        return null;
    })
        .filter((header) => header !== null);
};
exports.selectSigningHeaders = selectSigningHeaders;
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