43 lines
1.1 KiB
JavaScript
43 lines
1.1 KiB
JavaScript
const path = require('path')
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const launch = require('launch-editor')
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module.exports = (specifiedEditor, srcRoot, onErrorCallback) => {
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if (typeof specifiedEditor === 'function') {
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onErrorCallback = specifiedEditor
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specifiedEditor = undefined
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}
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if (typeof srcRoot === 'function') {
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onErrorCallback = srcRoot
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srcRoot = undefined
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}
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srcRoot = srcRoot || process.cwd()
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return function launchEditorMiddleware(req, res) {
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let url
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try {
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const fullUrl = req.url.startsWith('http') ? req.url : `http://localhost${req.url}`
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url = new URL(fullUrl)
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// eslint-disable-next-line no-unused-vars
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} catch (_err) {
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res.statusCode = 500
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res.end(`launch-editor-middleware: invalid URL.`)
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return
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}
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const file = url.searchParams.get('file')
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if (!file) {
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res.statusCode = 500
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res.end(
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`launch-editor-middleware: required query param "file" is missing.`
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)
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} else {
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const resolved = file.startsWith('file://') ? file : path.resolve(srcRoot, file)
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launch(resolved, specifiedEditor, onErrorCallback)
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res.end()
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}
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}
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}
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