38 lines
1.4 KiB
JavaScript
38 lines
1.4 KiB
JavaScript
const path = require('path')
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const { generateMetadata } = require('./MetadataUtils')
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const { generateDirectoryIndexHTML } = require('./IndexUtils')
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const { sendFile } = require('./ResponseUtils')
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/**
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* Send the file, JSON metadata, or HTML directory listing.
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*/
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function serveFile(autoIndex, maximumDepth) {
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return function (req, res, next) {
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// TODO: change query param from "json" to "meta"
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if (req.query.json != null) {
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generateMetadata(req.packageDir, req.file, req.stats, maximumDepth, function (error, metadata) {
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if (metadata) {
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res.set('Cache-Control', 'public, max-age=31536000').send(metadata)
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} else {
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res.status(500).send(`Cannot generate JSON metadata for ${req.packageSpec}${req.filename}`)
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}
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})
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} else if (req.stats.isFile()) {
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// TODO: use res.sendFile instead of our own custom function?
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sendFile(res, path.join(req.packageDir, req.file), req.stats, 31536000)
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} else if (autoIndex && req.stats.isDirectory()) {
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generateDirectoryIndexHTML(req.packageInfo, req.packageVersion, req.packageDir, req.file, function (error, html) {
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if (html) {
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res.send(html)
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} else {
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res.status(500).send(`Cannot generate index page for ${req.packageSpec}${req.filename}`)
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}
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})
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} else {
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res.status(403).send(`Cannot serve ${req.packageSpec}${req.filename}; it's not a req.file`)
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}
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}
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}
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module.exports = serveFile
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