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提交作业 #7

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138a4df
feat: 提交作业,增加复杂用例
Sep 3, 2022
68f3fc8
feat: 增加直接传JSON渲染
Sep 3, 2022
6a003bf
feat: 忽略script标签
Sep 3, 2022
bbfa55f
feat: 增加注释
Sep 3, 2022
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198 changes: 198 additions & 0 deletions server.js
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Original file line number Diff line number Diff line change
@@ -1 +1,199 @@
// TODO 监听3000端口，便于执行test
import http from 'node:http'

const Template = {
default: {
tagName: 'div',
type: 'element',
attributes: [
{
name: 'id',
value: 'app'
}
],
children: [
{
tagName: 'div',
type: 'element',
children: [
{
type: 'text',
content: 'Vue SSR Example'
}
]
}
]
},
complex: {
tagName: 'div',
type: 'element',
attributes: [
{
name: 'id',
value: 'app'
}
],
children: [
{
tagName: 'span',
type: 'element',
attributes: [
{
name: 'id',
value: 'testSpan'
},
{
name: 'style',
value: 'color: red;'
}
],
children: [
{
type: 'text',
content: 'Test Span'
}
]
},
{
type: 'text',
content: 'Vue SSR Example'
},
{
tagName: 'ul',
type: 'element',
attributes: [
{
name: 'id',
value: 'ulNode'
},
{
name: 'data-spm',
value: 'spm1'
}
],
children: [
{
tagName: 'li',
type: 'element',
children: [
{
tagName: 'a',
type: 'element',
attributes: [
{
name: 'href',
value: 'https://www.baidu.com'
}
],
children: [
{
type: 'text',
content: 'go to baidu'
}
]
}
]
},
{
tagName: 'li',
type: 'element',
children: [
{
type: 'text',
content: 'do nothing'
}
]
}
]
}
]
}
}

function createHtml(element = Template.default) {
// 文本节点直接生成文本
if (element.type === 'text') {
return element.content
}

if (element.type === 'element') {
// 忽略script标签，避免注入风险
if (element.tagName === 'script') {
return ''
}
// 处理属性
let attrs = ``

if (Array.isArray(element.attributes)) {
element.attributes.forEach(attr => {
attrs += ` ${attr.name}="${attr.value}"`
})
}

// 处理子节点
let children = ``

if (Array.isArray(element.children)) {
element.children.forEach(child => {
children += createHtml(child)
})
}

return `<${element.tagName}${attrs}>${children}</${element.tagName}>`
}
}

const server = http.createServer((req, res) => {
res.writeHead(200, {
'Content-Type': 'text/html;charset=utf-8'
})
let element

if (req.url && /\?/.test(req.url)) {
const search = req.url.replace(/(.*)\?/, '')
const queryArr = search.split('&')

for (const item of queryArr) {
const query = item.split('=')

// 指定渲染模板，实际应用中可在后台配置若干模板，用户可以配置要显示的模板进行展示
if (query[0] === 'template') {
if (Template[query[1]]) {
element = Template[query[1]]
}
break
}

// 指定一个JSON渲染
if (query[0] === 'json') {
try {
element = JSON.parse(decodeURIComponent(query[1]))
break
} catch (error) {
console.error(error)
}
}
}
}

const content = createHtml(element)
const html = `<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
${content}
</body>
</html>`
res.end(html)
})

server.on('clientError', (err, socket) => {
socket.end('HTTP/1.1 400 Bad Request\r\n\r\n')
})

server.listen(3000)
123 changes: 123 additions & 0 deletions test/index.spec.js
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Original file line number Diff line number Diff line change
Expand Up @@ -12,3 +12,126 @@ describe('NuxtLogo', () => {
expect(bodyInnerHTML.trim()).toBe('<div id="app"><div>Vue SSR Example</div></div>')
})
})

describe('NuxtLogo 指定模板类型', () => {
test('is a Vue instance', async () => {
const browser = await puppeteer.launch({ ignoreDefaultArgs: ['--disable-extensions'] });
const page = await browser.newPage();
// 指定渲染模板
await page.goto('http://localhost:3000?template=complex')
const bodyHandle = await page.$('body');
const bodyInnerHTML = await page.evaluate(dom => dom.innerHTML, bodyHandle);
await bodyHandle.dispose();
browser.close();
expect(bodyInnerHTML.trim()).toBe('<div id="app"><span id="testSpan" style="color: red;">Test Span</span>Vue SSR Example<ul id="ulNode" data-spm="spm1"><li><a href="https://www.baidu.com">go to baidu</a></li><li>do nothing</li></ul></div>')
})
})

describe('NuxtLogo 使用JSON参数', () => {
test('is a Vue instance', async () => {
const browser = await puppeteer.launch({ ignoreDefaultArgs: ['--disable-extensions'] });
const page = await browser.newPage();
// 指定渲染JSON
const url = `http://localhost:3000?json=${encodeURIComponent(JSON.stringify({
tagName: 'div',
type: 'element',
attributes: [
{
name: 'id',
value: 'app'
}
],
children: [
// 尝试插入一个script标签，会被后端忽略
{
tagName: 'script',
type: 'element',
children: [
{
type: 'text',
content: 'alert(1)'
}
]
},
{
tagName: 'span',
type: 'element',
attributes: [
{
name: 'id',
value: 'testSpan'
},
{
name: 'style',
value: 'color: red;'
}
],
children: [
{
type: 'text',
content: 'Test Span'
}
]
},
{
type: 'text',
content: 'Vue SSR Example'
},
{
tagName: 'ul',
type: 'element',
attributes: [
{
name: 'id',
value: 'ulNode'
},
{
name: 'data-spm',
value: 'spm1'
}
],
children: [
{
tagName: 'li',
type: 'element',
children: [
{
tagName: 'a',
type: 'element',
attributes: [
{
name: 'href',
value: 'https://www.baidu.com'
}
],
children: [
{
type: 'text',
content: 'go to baidu'
}
]
}
]
},
{
tagName: 'li',
type: 'element',
children: [
{
type: 'text',
content: 'do nothing'
}
]
}
]
}
]
}))}`
await page.goto(url)
const bodyHandle = await page.$('body');
const bodyInnerHTML = await page.evaluate(dom => dom.innerHTML, bodyHandle);
await bodyHandle.dispose();
browser.close();
expect(bodyInnerHTML.trim()).toBe('<div id="app"><span id="testSpan" style="color: red;">Test Span</span>Vue SSR Example<ul id="ulNode" data-spm="spm1"><li><a href="https://www.baidu.com">go to baidu</a></li><li>do nothing</li></ul></div>')
})
})