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Fix middleware on server-side

This commit is contained in:
Sébastien Chopin 2017-05-04 09:57:10 +02:00
parent 5d4f289911
commit 4b675e3357
5 changed files with 147 additions and 173 deletions
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3
examples/middleware/middleware/visits.js
View File

@ -1,3 +1,4 @@
export default function ({ store, route }) {
export default function ({ store, route, redirect }) {
store.commit('ADD_VISIT', route.path)
if (route.fullPath === '/') return redirect('/foo')
}

1
examples/middleware/pages/_slug.vue
View File

@ -12,6 +12,7 @@
<script>
export default {
asyncData ({ store, route, userAgent }) {
console.log('Call async data', route.fullPath)
return {
userAgent,
slugs: [

4
lib/app/client.js
View File

@ -3,7 +3,7 @@
import Vue from 'vue'
import middleware from './middleware'
import { app, router<%= (store ? ', store' : '') %>, NuxtError } from './index'
import { applyAsyncData, getMatchedComponents, getMatchedComponentsInstances, flatMapComponents, getContext, promiseSeries, promisify, getLocation, compile } from './utils'
import { applyAsyncData, getMatchedComponents, getMatchedComponentsInstances, flatMapComponents, getContext, middlewareSeries, promisify, getLocation, compile } from './utils'
const noopData = () => { return {} }
const noopFetch = () => {}
let _lastPaths = []
@ -77,7 +77,7 @@ function callMiddleware (Components, context, layout) {
return middleware[name]
})
if (unknownMiddleware) return
return promiseSeries(midd, context)
return middlewareSeries(midd, context)
}
function render (to, from, next) {

290
lib/app/server.js
View File

@ -1,14 +1,13 @@
'use strict'
const debug = require('debug')('nuxt:render')
debug.color = 4 // force blue color
import Vue from 'vue'
import { stringify } from 'querystring'
import { omit } from 'lodash'
import middleware from './middleware'
import { app, router<%= (store ? ', store' : '') %>, NuxtError } from './index'
import { applyAsyncData, getMatchedComponents, getContext, promiseSeries, promisify, urlJoin } from './utils'
import { applyAsyncData, sanitizeComponent, getMatchedComponents, getContext, middlewareSeries, promisify, urlJoin } from './utils'
const debug = require('debug')('nuxt:render')
debug.color = 4 // force blue color
const isDev = <%= isDev %>
const _app = new Vue(app)
@ -18,7 +17,7 @@ const _app = new Vue(app)
// state of our application before actually rendering it.
// Since data fetching is async, this function is expected to
// return a Promise that resolves to the app instance.
export default context => {
export default async (context) => {
// Add store to the context
<%= (store ? 'context.store = store' : '') %>
// Nuxt object
@ -47,180 +46,137 @@ export default context => {
<%= (isDev ? 'const s = isDev && Date.now()' : '') %>
let ctx = null
let componentsLoaded = false
let Components = []
let promises = getMatchedComponents(router.match(context.url)).map((Component) => {
return new Promise((resolve, reject) => {
const _resolve = (Component) => {
if (!Component.options) {
Component = Vue.extend(Component) // fix issue #6
Component._Ctor = Component
} else {
Component._Ctor = Component
Component.extendOptions = Component.options
}
// For debugging purpose
if (!Component.options.name && Component.options.__file) {
Component.options.name = Component.options.__file
}
resolve(Component)
}
const _resolve = (Component) => resolve(sanitizeComponent(Component))
Component().then(_resolve).catch(reject)
})
})
return Promise.all(promises)
.then((_Components) => {
componentsLoaded = true
Components = _Components
// set router's location
return new Promise((resolve) => {
router.push(context.url, resolve)
})
try {
Components = await Promise.all(promises)
} catch (err) {
// Throw back error to renderRoute()
throw err
}
// set router's location
await new Promise((resolve) => {
router.push(context.url, resolve)
})
.then(() => {
// Add route to the context
context.route = router.currentRoute
// Update context
ctx = getContext(context)
// nuxtServerInit
<% if (store) { %>
let promise = (store._actions && store._actions.nuxtServerInit ? store.dispatch('nuxtServerInit', omit(getContext(context), 'redirect', 'error')) : null)
if (!promise || (!(promise instanceof Promise) && (typeof promise.then !== 'function'))) promise = Promise.resolve()
<% } else { %>
let promise = Promise.resolve()
<% } %>
return promise
})
.then(() => {
// Sanitize Components
Components = Components.map((Component) => {
let promises = []
if (!Component.options) {
Component = Vue.extend(Component)
Component._Ctor = Component
} else {
Component._Ctor = Component
Component.extendOptions = Component.options
}
return Component
})
// Call global middleware (nuxt.config.js)
let midd = <%= serialize(router.middleware, { isJSON: true }) %>
midd = midd.map((name) => {
if (typeof middleware[name] !== 'function') {
context.nuxt.error = context.error({ statusCode: 500, message: 'Unknown middleware ' + name })
}
return middleware[name]
})
if (context.nuxt.error) return
return promiseSeries(midd, ctx)
})
.then(() => {
// Set layout
let layout = Components.length ? Components[0].options.layout : NuxtError.layout
if (typeof layout === 'function') {
layout = layout(ctx)
// Add route to the context
context.route = router.currentRoute
// Update context
ctx = getContext(context)
// nuxtServerInit
<% if (store) { %>
let promise = (store._actions && store._actions.nuxtServerInit ? store.dispatch('nuxtServerInit', omit(getContext(context), 'redirect', 'error')) : null)
if (!promise || (!(promise instanceof Promise) && (typeof promise.then !== 'function'))) promise = Promise.resolve()
<% } else { %>
let promise = Promise.resolve()
<% } %>
await promise
// Call global middleware (nuxt.config.js)
let midd = <%= serialize(router.middleware, { isJSON: true }) %>
midd = midd.map((name) => {
if (typeof middleware[name] !== 'function') {
context.nuxt.error = context.error({ statusCode: 500, message: 'Unknown middleware ' + name })
}
return _app.loadLayout(layout).then(() => _app.setLayout(layout))
return middleware[name]
})
.then((layout) => {
// Set layout to __NUXT__
context.nuxt.layout = _app.layoutName
// Call middleware (layout + pages)
let midd = []
if (layout.middleware) {
midd = midd.concat(layout.middleware)
if (!context.nuxt.error) {
await middlewareSeries(midd, ctx)
}
if (context.redirected) return _app
// Set layout
let layout = Components.length ? Components[0].options.layout : NuxtError.layout
if (typeof layout === 'function') layout = layout(ctx)
await _app.loadLayout(layout)
layout = _app.setLayout(layout)
// Set layout to __NUXT__
context.nuxt.layout = _app.layoutName
// Call middleware (layout + pages)
midd = []
if (layout.middleware) midd = midd.concat(layout.middleware)
Components.forEach((Component) => {
if (Component.options.middleware) {
midd = midd.concat(Component.options.middleware)
}
Components.forEach((Component) => {
if (Component.options.middleware) {
midd = midd.concat(Component.options.middleware)
}
})
midd = midd.map((name) => {
if (typeof middleware[name] !== 'function') {
context.nuxt.error = context.error({ statusCode: 500, message: 'Unknown middleware ' + name })
}
return middleware[name]
})
if (context.nuxt.error) return
return promiseSeries(midd, ctx)
})
.then(() => {
// Call .validate()
let isValid = true
Components.forEach((Component) => {
if (!isValid) return
if (typeof Component.options.validate !== 'function') return
isValid = Component.options.validate({
params: context.route.params || {},
query: context.route.query || {}<%= (store ? ', store: ctx.store' : '') %>
midd = midd.map((name) => {
if (typeof middleware[name] !== 'function') {
context.nuxt.error = context.error({ statusCode: 500, message: 'Unknown middleware ' + name })
}
return middleware[name]
})
if (!context.nuxt.error) {
await middlewareSeries(midd, ctx)
}
if (context.redirected) return _app
// Call .validate()
let isValid = true
Components.forEach((Component) => {
if (!isValid) return
if (typeof Component.options.validate !== 'function') return
isValid = Component.options.validate({
params: context.route.params || {},
query: context.route.query || {}<%= (store ? ', store: ctx.store' : '') %>
})
})
// If .validate() returned false
if (!isValid) {
// Don't server-render the page in generate mode
if (context._generate) {
context.nuxt.serverRendered = false
}
// Call the 404 error by making the Components array empty
Components = []
}
// Call asyncData & fetch hooks on components matched by the route.
let asyncDatas = await Promise.all(Components.map((Component) => {
let promises = []
if (Component.options.asyncData && typeof Component.options.asyncData === 'function') {
let promise = promisify(Component.options.asyncData, ctx)
// Call asyncData(context)
promise.then((asyncDataResult) => {
applyAsyncData(Component, asyncDataResult)
return asyncDataResult
})
})
if (!isValid) {
// Don't server-render the page in generate mode
if (context._generate) {
context.nuxt.serverRendered = false
}
// Call the 404 error by making the Components array empty
Components = []
return _app
}
// Call asyncData & fetch hooks on components matched by the route.
return Promise.all(Components.map((Component) => {
let promises = []
if (Component.options.asyncData && typeof Component.options.asyncData === 'function') {
let promise = promisify(Component.options.asyncData, ctx)
// Call asyncData(context)
promise.then((asyncDataResult) => {
applyAsyncData(Component, asyncDataResult)
return asyncDataResult
})
promises.push(promise)
} else {
promises.push(null)
}
if (Component.options.fetch) {
promises.push(Component.options.fetch(ctx))
} else {
promises.push(null)
}
return Promise.all(promises)
}))
})
.then((res) => {
if (!Components.length) {
context.nuxt.error = context.error({ statusCode: 404, message: 'This page could not be found.' })
<%= (store ? 'context.nuxt.state = store.state' : '') %>
return _app
}
<% if (isDev) { %>
debug('Data fetching ' + context.url + ': ' + (Date.now() - s) + 'ms')
<% } %>
// datas are the first row of each
context.nuxt.data = res.map((r) => (r[0] || {}))
promises.push(promise)
} else promises.push(null)
// call fetch(context)
if (Component.options.fetch) promises.push(Component.options.fetch(ctx))
else promises.push(null)
return Promise.all(promises)
}))
// If no Components found, returns 404
if (!Components.length) {
context.nuxt.error = context.error({ statusCode: 404, message: 'This page could not be found.' })
}
<% if (isDev) { %>
if (asyncDatas.length) debug('Data fetching ' + context.url + ': ' + (Date.now() - s) + 'ms')
<% } %>
// datas are the first row of each
context.nuxt.data = asyncDatas.map((r) => (r[0] || {}))
// If an error occured in the execution
if (_app.$options._nuxt.err) {
context.nuxt.error = _app.$options._nuxt.err
<%= (store ? '// Add the state from the vuex store' : '') %>
<%= (store ? 'context.nuxt.state = store.state' : '') %>
// If no error, return main app
if (!context.nuxt.error) {
return _app
}
// Load layout for error page
let layout = (typeof NuxtError.layout === 'function' ? NuxtError.layout(ctx) : NuxtError.layout)
context.nuxt.layout = layout || ''
return _app.loadLayout(layout)
.then(() => _app.setLayout(layout))
.then(() => _app)
})
.catch(function (error) {
if (error instanceof Error || error.constructor.toString().indexOf('Error()') !== -1) {
return Promise.reject(error)
}
if (typeof error === 'string') {
error = { statusCode: 500, message: error }
}
context.nuxt.error = context.error(error)
<%= (store ? 'context.nuxt.state = store.state' : '') %>
}
<%= (store ? '// Add the state from the vuex store' : '') %>
<%= (store ? 'context.nuxt.state = store.state' : '') %>
// If no error, return main app
if (!context.nuxt.error) {
return _app
})
}
// Load layout for error page
layout = (typeof NuxtError.layout === 'function' ? NuxtError.layout(ctx) : NuxtError.layout)
context.nuxt.layout = layout || ''
await _app.loadLayout(layout)
_app.setLayout(layout)
return _app
// if (typeof error === 'string') {
// error = { statusCode: 500, message: error }
// }
// context.nuxt.error = context.error(error)
// <%= (store ? 'context.nuxt.state = store.state' : '') %>
// return _app
}

22
lib/app/utils.js
View File

@ -1,4 +1,5 @@
'use strict'
import Vue from 'vue'
import { app } from './index'
const noopData = () => ({})
@ -14,6 +15,21 @@ export function applyAsyncData (Component, asyncData = {}) {
}
}
export function sanitizeComponent (Component) {
if (!Component.options) {
Component = Vue.extend(Component) // fix issue #6
Component._Ctor = Component
} else {
Component._Ctor = Component
Component.extendOptions = Component.options
}
// For debugging purpose
if (!Component.options.name && Component.options.__file) {
Component.options.name = Component.options.__file
}
return Component
}
export function getMatchedComponents (route) {
return [].concat.apply([], route.matched.map(function (m) {
return Object.keys(m.components).map(function (key) {
@ -54,7 +70,7 @@ export function getContext (context) {
ctx.query = ctx.route.query || {}
ctx.redirect = function (status, path, query) {
if (!status) return
ctx._redirected = true
ctx._redirected = true // Used in middleware
// if only 1 or 2 arguments: redirect('/') or redirect('/', { foo: 'bar' })
if (typeof status === 'string' && (typeof path === 'undefined' || typeof path === 'object')) {
query = path || {}
@ -82,13 +98,13 @@ export function getContext (context) {
return ctx
}
export function promiseSeries (promises, context) {
export function middlewareSeries (promises, context) {
if (!promises.length || context._redirected) {
return Promise.resolve()
}
return promisify(promises[0], context)
.then(() => {
return promiseSeries(promises.slice(1), context)
return middlewareSeries(promises.slice(1), context)
})
}