43 lines
1.0 KiB
JavaScript
43 lines
1.0 KiB
JavaScript
import path from 'path';
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function getMatchingEntries(entry, entries) {
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const dirname = entry.name || '.';
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return Object.keys(entries)
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.filter(name => entry.name !== name && path.dirname(name) === dirname)
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.map(name => entries[name]);
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}
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const leadingSlashes = /^\/*/;
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function getMetadata(entry, entries) {
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const metadata = {
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path: entry.name.replace(leadingSlashes, '/'),
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type: entry.type
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};
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if (entry.type === 'file') {
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metadata.contentType = entry.contentType;
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metadata.integrity = entry.integrity;
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metadata.lastModified = entry.lastModified;
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metadata.size = entry.size;
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} else if (entry.type === 'directory') {
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metadata.files = getMatchingEntries(entry, entries).map(e =>
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getMetadata(e, entries)
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);
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}
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return metadata;
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}
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export default function serveMetadata(req, res) {
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const metadata = getMetadata(req.entry, req.entries);
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res
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.set({
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'Cache-Control': 'public, max-age=31536000', // 1 year
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'Cache-Tag': 'meta'
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})
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.send(metadata);
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}
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