mirror of
https://github.com/nuxt/nuxt.git
synced 2024-11-27 16:12:12 +00:00
refactor: move renderer middleware into seperate modules
This commit is contained in:
Pooya Parsa
parent
4354dee243
commit
e54beeee1e
136
lib/core/middleware/error.js
Normal file
136
lib/core/middleware/error.js
Normal file
@ -0,0 +1,136 @@
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const Youch = require('@nuxtjs/youch')
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const { SourceMapConsumer } = require('source-map')
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const { join, resolve } = require('path')
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const { readFile } = require('fs-extra')
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module.exports = function errorMiddleware(err, req, res, next) {
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// ensure statusCode, message and name fields
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err.statusCode = err.statusCode || 500
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err.message = err.message || 'Nuxt Server Error'
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err.name = (!err.name || err.name === 'Error') ? 'NuxtServerError' : err.name
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// We hide actual errors from end users, so show them on server logs
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if (err.statusCode !== 404) {
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console.error(err) // eslint-disable-line no-console
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}
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const sendResponse = (content, type = 'text/html') => {
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// Set Headers
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res.statusCode = err.statusCode
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res.statusMessage = err.name
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res.setHeader('Content-Type', type + '; charset=utf-8')
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res.setHeader('Content-Length', Buffer.byteLength(content))
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// Send Response
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res.end(content, 'utf-8')
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}
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// Check if request accepts JSON
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const hasReqHeader = (header, includes) => req.headers[header] && req.headers[header].toLowerCase().includes(includes)
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const isJson = hasReqHeader('accept', 'application/json') || hasReqHeader('user-agent', 'curl/')
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// Use basic errors when debug mode is disabled
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if (!this.options.debug) {
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// Json format is compatible with Youch json responses
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const json = {
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status: err.statusCode,
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message: err.message,
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name: err.name
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}
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if (isJson) {
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sendResponse(JSON.stringify(json, undefined, 2), 'text/json')
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return
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}
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const html = this.resources.errorTemplate(json)
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sendResponse(html)
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return
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}
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// Show stack trace
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const youch = new Youch(err, req, readSource.bind(this))
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if (isJson) {
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youch.toJSON().then(json => { sendResponse(JSON.stringify(json, undefined, 2), 'text/json') })
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} else {
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youch.toHTML().then(html => { sendResponse(html) })
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}
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}
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async function readSource(frame) {
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const serverBundle = this.resources.serverBundle
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// Remove webpack:/// & query string from the end
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const sanitizeName = name => name ? name.replace('webpack:///', '').split('?')[0] : ''
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// SourceMap Support for SSR Bundle
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if (serverBundle && serverBundle.maps[frame.fileName]) {
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// Initialize smc cache
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if (!serverBundle.$maps) {
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serverBundle.$maps = {}
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}
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// Read SourceMap object
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const smc = serverBundle.$maps[frame.fileName] || new SourceMapConsumer(serverBundle.maps[frame.fileName])
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serverBundle.$maps[frame.fileName] = smc
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// Try to find original position
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const { line, column, name, source } = smc.originalPositionFor({
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line: frame.getLineNumber() || 0,
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column: frame.getColumnNumber() || 0,
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bias: SourceMapConsumer.LEAST_UPPER_BOUND
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})
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if (line) {
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frame.lineNumber = line
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}
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/* istanbul ignore if */
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if (column) {
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frame.columnNumber = column
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}
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/* istanbul ignore if */
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if (name) {
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frame.functionName = name
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}
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if (source) {
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frame.fileName = sanitizeName(source)
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// Source detected, try to get original source code
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const contents = smc.sourceContentFor(source)
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if (contents) {
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frame.contents = contents
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}
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}
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}
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// Return if fileName is still unknown
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if (!frame.fileName) {
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return
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}
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frame.fileName = sanitizeName(frame.fileName)
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// Try to read from SSR bundle files
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if (serverBundle && serverBundle.files[frame.fileName]) {
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frame.contents = serverBundle.files[frame.fileName]
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return
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}
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// Possible paths for file
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const searchPath = [
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this.options.rootDir,
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join(this.options.buildDir, 'dist'),
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this.options.srcDir,
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this.options.buildDir
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]
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// Scan filesystem for real path
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for (let pathDir of searchPath) {
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let fullPath = resolve(pathDir, frame.fileName)
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let source = await readFile(fullPath, 'utf-8').catch(() => null)
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if (source) {
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if (!frame.contents) {
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frame.contents = source
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}
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frame.fullPath = fullPath
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return
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}
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}
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}
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66
lib/core/middleware/nuxt.js
Normal file
66
lib/core/middleware/nuxt.js
Normal file
@ -0,0 +1,66 @@
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const generateETag = require('etag')
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const fresh = require('fresh')
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const { getContext } = require('../common/utils')
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module.exports = async function nuxtMiddleware(req, res, next) {
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// Get context
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const context = getContext(req, res)
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res.statusCode = 200
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try {
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const result = await this.renderRoute(req.url, context)
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await this.nuxt.callHook('render:route', req.url, result)
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const { html, error, redirected, resourceHints } = result
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if (redirected) {
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return html
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}
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if (error) {
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res.statusCode = context.nuxt.error.statusCode || 500
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}
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// Add ETag header
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if (!error && this.options.render.etag) {
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const etag = generateETag(html, this.options.render.etag)
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if (fresh(req.headers, { etag })) {
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res.statusCode = 304
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res.end()
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return
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}
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res.setHeader('ETag', etag)
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}
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// HTTP2 push headers
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if (!error && this.options.render.http2.push) {
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// Parse resourceHints to extract HTTP.2 prefetch/push headers
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// https://w3c.github.io/preload/#server-push-http-2
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const regex = /link rel="([^"]*)" href="([^"]*)" as="([^"]*)"/g
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const pushAssets = []
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let m
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while (m = regex.exec(resourceHints)) { // eslint-disable-line no-cond-assign
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const [, rel, href, as] = m
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if (rel === 'preload') {
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pushAssets.push(`<${href}>; rel=${rel}; as=${as}`)
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}
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}
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// Pass with single Link header
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// https://blog.cloudflare.com/http-2-server-push-with-multiple-assets-per-link-header
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res.setHeader('Link', pushAssets.join(','))
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}
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// Send response
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res.setHeader('Content-Type', 'text/html; charset=utf-8')
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res.setHeader('Content-Length', Buffer.byteLength(html))
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res.end(html, 'utf8')
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return html
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} catch (err) {
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/* istanbul ignore if */
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if (context && context.redirected) {
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console.error(err) // eslint-disable-line no-console
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return err
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}
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next(err)
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}
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}
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23
lib/core/middleware/open-in-editor.js
Normal file
23
lib/core/middleware/open-in-editor.js
Normal file
@ -0,0 +1,23 @@
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const openInEditor = require('open-in-editor')
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module.exports = function openInEditorMiddleware(req, res) {
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// Lazy load open-in-editor
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const editor = openInEditor.configure(this.options.editor)
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// Parse Query
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const query = req.url.split('?')[1].split('&').reduce((q, part) => {
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const s = part.split('=')
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q[s[0]] = decodeURIComponent(s[1])
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return q
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}, {})
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// eslint-disable-next-line no-console
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console.log('[open in editor]', query.file)
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editor.open(query.file).then(() => {
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res.end('opened in editor!')
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}).catch(err => {
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res.end(err)
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})
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}
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@ -1,21 +1,23 @@
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const ansiHTML = require('ansi-html')
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const serialize = require('serialize-javascript')
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const generateETag = require('etag')
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const fresh = require('fresh')
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const serveStatic = require('serve-static')
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const compression = require('compression')
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const _ = require('lodash')
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const { join, resolve } = require('path')
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const fs = require('fs-extra')
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const { createBundleRenderer } = require('vue-server-renderer')
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const { getContext, setAnsiColors, isUrl, waitFor } = require('../common/utils')
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const { setAnsiColors, isUrl, waitFor } = require('../common/utils')
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const Debug = require('debug')
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const Youch = require('@nuxtjs/youch')
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const { SourceMapConsumer } = require('source-map')
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const connect = require('connect')
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const { Options } = require('../common')
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const MetaRenderer = require('./meta')
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const errorMiddleware = require('./middleware/error')
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const nuxtMiddleware = require('./middleware/nuxt')
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const openInEditorMiddleware = require('./middleware/open-in-editor')
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const debug = Debug('nuxt:render')
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debug.color = 4 // Force blue color
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@ -223,28 +225,10 @@ module.exports = class Renderer {
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}
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// open in editor for debug mode only
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const _this = this
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if (this.options.debug && this.options.dev) {
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this.useMiddleware({
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path: '__open-in-editor',
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handler(req, res) {
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// Lazy load open-in-editor
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const openInEditor = require('open-in-editor')
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const editor = openInEditor.configure(_this.options.editor)
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// Parse Query
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const query = req.url.split('?')[1].split('&').reduce((q, part) => {
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const s = part.split('=')
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q[s[0]] = decodeURIComponent(s[1])
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return q
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}, {})
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// eslint-disable-next-line no-console
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console.log('[open in editor]', query.file)
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editor.open(query.file).then(() => {
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res.end('opened in editor!')
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}).catch(err => {
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res.end(err)
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})
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}
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handler: openInEditorMiddleware.bind(this)
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})
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}
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@ -270,206 +254,12 @@ module.exports = class Renderer {
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})
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// Finally use nuxtMiddleware
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this.useMiddleware(this.nuxtMiddleware.bind(this))
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this.useMiddleware(nuxtMiddleware.bind(this))
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// Error middleware for errors that occurred in middleware that declared above
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// Middleware should exactly take 4 arguments
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// https://github.com/senchalabs/connect#error-middleware
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this.useMiddleware(this.errorMiddleware.bind(this))
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}
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async nuxtMiddleware(req, res, next) {
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// Get context
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const context = getContext(req, res)
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res.statusCode = 200
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try {
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const result = await this.renderRoute(req.url, context)
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await this.nuxt.callHook('render:route', req.url, result)
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const { html, error, redirected, resourceHints } = result
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if (redirected) {
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return html
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}
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if (error) {
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res.statusCode = context.nuxt.error.statusCode || 500
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}
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// Add ETag header
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if (!error && this.options.render.etag) {
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const etag = generateETag(html, this.options.render.etag)
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if (fresh(req.headers, { etag })) {
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res.statusCode = 304
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res.end()
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return
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}
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res.setHeader('ETag', etag)
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}
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// HTTP2 push headers
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if (!error && this.options.render.http2.push) {
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// Parse resourceHints to extract HTTP.2 prefetch/push headers
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// https://w3c.github.io/preload/#server-push-http-2
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const regex = /link rel="([^"]*)" href="([^"]*)" as="([^"]*)"/g
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const pushAssets = []
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let m
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while (m = regex.exec(resourceHints)) { // eslint-disable-line no-cond-assign
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const [, rel, href, as] = m
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if (rel === 'preload') {
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pushAssets.push(`<${href}>; rel=${rel}; as=${as}`)
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}
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}
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// Pass with single Link header
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// https://blog.cloudflare.com/http-2-server-push-with-multiple-assets-per-link-header
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res.setHeader('Link', pushAssets.join(','))
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}
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// Send response
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res.setHeader('Content-Type', 'text/html; charset=utf-8')
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res.setHeader('Content-Length', Buffer.byteLength(html))
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res.end(html, 'utf8')
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return html
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} catch (err) {
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/* istanbul ignore if */
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if (context && context.redirected) {
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console.error(err) // eslint-disable-line no-console
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return err
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}
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next(err)
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}
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}
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errorMiddleware(err, req, res, next) {
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// ensure statusCode, message and name fields
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err.statusCode = err.statusCode || 500
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err.message = err.message || 'Nuxt Server Error'
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err.name = (!err.name || err.name === 'Error') ? 'NuxtServerError' : err.name
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// We hide actual errors from end users, so show them on server logs
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if (err.statusCode !== 404) {
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console.error(err) // eslint-disable-line no-console
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}
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const sendResponse = (content, type = 'text/html') => {
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// Set Headers
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res.statusCode = err.statusCode
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res.statusMessage = err.name
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res.setHeader('Content-Type', type + '; charset=utf-8')
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res.setHeader('Content-Length', Buffer.byteLength(content))
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// Send Response
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res.end(content, 'utf-8')
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}
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// Check if request accepts JSON
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const hasReqHeader = (header, includes) => req.headers[header] && req.headers[header].toLowerCase().includes(includes)
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const isJson = hasReqHeader('accept', 'application/json') || hasReqHeader('user-agent', 'curl/')
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|
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// Use basic errors when debug mode is disabled
|
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if (!this.options.debug) {
|
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// Json format is compatible with Youch json responses
|
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const json = {
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status: err.statusCode,
|
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message: err.message,
|
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name: err.name
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}
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if (isJson) {
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sendResponse(JSON.stringify(json, undefined, 2), 'text/json')
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return
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}
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const html = this.resources.errorTemplate(json)
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sendResponse(html)
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return
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}
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// Show stack trace
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const youch = new Youch(err, req, this.readSource.bind(this))
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if (isJson) {
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youch.toJSON().then(json => { sendResponse(JSON.stringify(json, undefined, 2), 'text/json') })
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} else {
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youch.toHTML().then(html => { sendResponse(html) })
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}
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}
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async readSource(frame) {
|
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const serverBundle = this.resources.serverBundle
|
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|
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// Remove webpack:/// & query string from the end
|
||||
const sanitizeName = name => name ? name.replace('webpack:///', '').split('?')[0] : ''
|
||||
|
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// SourceMap Support for SSR Bundle
|
||||
if (serverBundle && serverBundle.maps[frame.fileName]) {
|
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// Initialize smc cache
|
||||
if (!serverBundle.$maps) {
|
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serverBundle.$maps = {}
|
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}
|
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|
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// Read SourceMap object
|
||||
const smc = serverBundle.$maps[frame.fileName] || new SourceMapConsumer(serverBundle.maps[frame.fileName])
|
||||
serverBundle.$maps[frame.fileName] = smc
|
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|
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// Try to find original position
|
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const { line, column, name, source } = smc.originalPositionFor({
|
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line: frame.getLineNumber() || 0,
|
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column: frame.getColumnNumber() || 0,
|
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bias: SourceMapConsumer.LEAST_UPPER_BOUND
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})
|
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if (line) {
|
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frame.lineNumber = line
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}
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/* istanbul ignore if */
|
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if (column) {
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frame.columnNumber = column
|
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}
|
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/* istanbul ignore if */
|
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if (name) {
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frame.functionName = name
|
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}
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if (source) {
|
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frame.fileName = sanitizeName(source)
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|
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// Source detected, try to get original source code
|
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const contents = smc.sourceContentFor(source)
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if (contents) {
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frame.contents = contents
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}
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}
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}
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// Return if fileName is still unknown
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if (!frame.fileName) {
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return
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}
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||||
|
||||
frame.fileName = sanitizeName(frame.fileName)
|
||||
|
||||
// Try to read from SSR bundle files
|
||||
if (serverBundle && serverBundle.files[frame.fileName]) {
|
||||
frame.contents = serverBundle.files[frame.fileName]
|
||||
return
|
||||
}
|
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|
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// Possible paths for file
|
||||
const searchPath = [
|
||||
this.options.rootDir,
|
||||
join(this.options.buildDir, 'dist'),
|
||||
this.options.srcDir,
|
||||
this.options.buildDir
|
||||
]
|
||||
|
||||
// Scan filesystem for real path
|
||||
for (let pathDir of searchPath) {
|
||||
let fullPath = resolve(pathDir, frame.fileName)
|
||||
let source = await fs.readFile(fullPath, 'utf-8').catch(() => null)
|
||||
if (source) {
|
||||
if (!frame.contents) {
|
||||
frame.contents = source
|
||||
}
|
||||
frame.fullPath = fullPath
|
||||
return
|
||||
}
|
||||
}
|
||||
this.useMiddleware(errorMiddleware.bind(this))
|
||||
}
|
||||
|
||||
async renderRoute(url, context = {}) {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user