Function findCorsRule

lib/api/apiUtils/object/corsResponse.js:67–80

_findCorsRule - Return first matching rule in cors rules that permits * CORS request * @param {object[]} rules - array of rules * @param {string} [rules.id] - optional id to identify rule * @param {string[]} rules[].allowedMethods - methods allowed for CORS * @param {string[]} rules[].allowedOrigi

(rules, origin, method, headers)

* @return {(null|object)} - matching rule if found; null if no match
*/
function findCorsRule(rules, origin, method, headers) {
    return rules.find(rule => {
        if (rule.allowedMethods.indexOf(method) === -1) {
            return false;
        } else if (!rule.allowedOrigins.some(allowedOrigin =>
            _matchesValue(allowedOrigin, origin))) {
            return false;
        } else if (headers &&
            !_headersMatchRule(headers, rule.allowedHeaders)) {
            return false;
        }
        return true;
    });
}

/** _gatherResHeaders - Collect headers to return in response
* @param {object} rule - array of rules