37 lines
818 B
JavaScript
37 lines
818 B
JavaScript
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function forwarded(req) {
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const proxyAddrs = parse(req.headers["x-forwarded-for"] || "");
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const socketAddr = req.socket.remoteAddress;
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return [socketAddr].concat(proxyAddrs);
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}
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function parse(header) {
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let end = header.length;
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const list = [];
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let start = header.length;
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for (let i = header.length - 1; i >= 0; i--) {
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switch (header.charCodeAt(i)) {
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case 32:
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if (start === end) {
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start = end = i;
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}
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break;
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case 44:
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if (start !== end) {
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list.push(header.substring(start, end));
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}
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start = end = i;
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break;
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default:
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start = i;
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break;
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}
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}
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if (start !== end)
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list.push(header.substring(start, end));
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return list;
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}
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export {
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forwarded,
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parse
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};
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//# sourceMappingURL=index.js.map
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