@fgiova/aws-signature/dist/aws/getCanonicalHeaders.js

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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.getCanonicalHeaders = getCanonicalHeaders;
exports.getCanonicalHeaderList = getCanonicalHeaderList;
const constants_1 = require("./constants");
/**
 * @private
 */
function getCanonicalHeaders({ headers }, unsignableHeaders, signableHeaders) {
    const canonical = {};
    /* c8 ignore next 3 */
    if (!headers) {
        return canonical;
    }
    for (const headerName of Object.keys(headers).sort()) {
        if (headers[headerName] == undefined) {
            continue;
        }
        const canonicalHeaderName = headerName.toLowerCase();
        if (canonicalHeaderName in constants_1.ALWAYS_UNSIGNABLE_HEADERS ||
            unsignableHeaders?.has(canonicalHeaderName) ||
            constants_1.PROXY_HEADER_PATTERN.test(canonicalHeaderName) ||
            constants_1.SEC_HEADER_PATTERN.test(canonicalHeaderName)) {
            if (!signableHeaders || (signableHeaders && !signableHeaders.has(canonicalHeaderName))) {
                continue;
            }
        }
        canonical[canonicalHeaderName] = headers[headerName].trim().replace(/\s+/g, " ");
    }
    return canonical;
}
function getCanonicalHeaderList(headers) {
    return Object.keys(headers).sort().join(";");
}