47 lines
1.1 KiB
JavaScript
47 lines
1.1 KiB
JavaScript
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/**
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* Module exports.
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*/
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module.exports = localHostOrDomainIs;
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/**
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* Is true if the hostname matches exactly the specified hostname, or if there is
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* no domain name part in the hostname, but the unqualified hostname matches.
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*
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* Examples:
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*
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* ``` js
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* localHostOrDomainIs("www.netscape.com", "www.netscape.com")
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* // is true (exact match).
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*
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* localHostOrDomainIs("www", "www.netscape.com")
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* // is true (hostname match, domain not specified).
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*
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* localHostOrDomainIs("www.mcom.com", "www.netscape.com")
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* // is false (domain name mismatch).
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*
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* localHostOrDomainIs("home.netscape.com", "www.netscape.com")
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* // is false (hostname mismatch).
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* ```
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*
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* @param {String} host the hostname from the URL.
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* @param {String} hostdom fully qualified hostname to match against.
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* @return {Boolean}
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*/
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function localHostOrDomainIs (host, hostdom) {
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var parts = String(host).split('.');
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var domparts = String(hostdom).split('.');
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var matches = true;
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for (var i = 0; i < parts.length; i++) {
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if (parts[i] !== domparts[i]) {
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matches = false;
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break;
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}
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}
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return matches;
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}
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