41 lines
1.4 KiB
JavaScript
41 lines
1.4 KiB
JavaScript
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import { parseRange } from 'header-range-parser';
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import { typeIs } from '@tinyhttp/type-is';
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import { fresh } from './fresh.js';
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export * from './accepts.js';
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export * from '@tinyhttp/url';
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export const getRequestHeader = (req) => {
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return (header) => {
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const lc = header.toLowerCase();
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switch (lc) {
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case 'referer':
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case 'referrer':
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return (req.headers.referrer || req.headers.referer);
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default:
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return req.headers[lc];
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}
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};
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};
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export const getRangeFromHeader = (req) => (size, options) => {
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const range = getRequestHeader(req)('range');
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if (!range)
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return;
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return parseRange(size, range, options);
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};
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export const getFreshOrStale = (req, res) => {
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const method = req.method;
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const status = res.statusCode;
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// GET or HEAD for weak freshness validation only
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if (method !== 'GET' && method !== 'HEAD')
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return false;
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// 2xx or 304 as per rfc2616 14.26
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if ((status >= 200 && status < 300) || status === 304) {
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return fresh(req.headers, {
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etag: res.getHeader('ETag'),
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'last-modified': res.getHeader('Last-Modified')
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});
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}
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return false;
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};
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export const checkIfXMLHttpRequest = (req) => req.headers['x-requested-with'] === 'XMLHttpRequest';
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export const reqIs = (req) => (...types) => typeIs(req.headers['content-type'], ...types);
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//# sourceMappingURL=index.js.map
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