2.0重构;补全完整的http状态码
parent
e32ca8c726
commit
a2a6ea850a
221
index.js
221
index.js
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@ -5,18 +5,51 @@
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import fs from 'iofs'
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import STATUS_TEXT from './lib/http-code.js'
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import { MIME_TYPES, CHARSET_TYPES } from './lib/mime-tpyes.js'
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import { serialize } from './lib/cookie.js'
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export default class Response {
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rendered = false
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#req = null
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#res = null
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#charset = 'utf-8'
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status = 200
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#ended = false
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constructor(req, res) {
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this.#req = req
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this.#res = res
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this.rendered = !!res.rendered
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this.#ended = !!res.ended
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}
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get ended() {
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return this.#ended
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}
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set charset(v) {
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this.#charset = v || 'utf-8'
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}
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get type() {
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return this.#res.getHeader('content-type')
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}
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set type(v) {
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let mime = MIME_TYPES[v] || MIME_TYPES.stream
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mime += CHARSET_TYPES[v] ? '; charset=' + this.#charset : ''
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this.set('Content-Type', mime)
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}
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set body(buf = null) {
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if (this.#ended) {
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return this
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}
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this.#ended = true
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this.#res.writeHead(this.status, STATUS_TEXT[this.status])
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this.#res.end(buf)
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}
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/**
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@ -25,20 +58,14 @@ export default class Response {
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* @param {String} msg [错误提示信息]
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*/
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error(msg, code = 500) {
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if (this.rendered) {
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if (this.#ended) {
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return
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}
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msg = msg || STATUS_TEXT[code]
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this.status(code)
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this.set('Content-Type', 'text/html; charset=utf-8')
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this.end(
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`<fieldset><legend>Http Status: ${code}</legend><pre>${msg}</pre></fieldset>`
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)
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}
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status(code = 404) {
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this.statusCode = code
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this.status = code
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this.type = 'html'
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this.body = `<fieldset><legend>Http Status: ${code}</legend><pre>${msg}</pre></fieldset>`
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}
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/**
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@ -47,23 +74,23 @@ export default class Response {
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* @param {Boolean} f [是否永久重定向]
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*/
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redirect(url, f = false) {
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if (this.rendered) {
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if (this.#ended) {
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return
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}
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if (!/^(http[s]?|ftp):\/\//.test(url)) {
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url = '//' + url
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}
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this.set('Location', url)
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this.status(f ? 301 : 302)
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this.end('')
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this.status = f ? 301 : 302
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this.body = null
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}
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/**
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* [location 页面跳转(前端的方式)]
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*/
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location(url) {
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var html = `<html><head><meta http-equiv="refresh" content="0;url=${url}"></head></html>`
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if (this.rendered) {
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let html = `<html><head><meta http-equiv="refresh" content="0;url=${url}"></head></html>`
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if (this.#ended) {
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return
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}
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this.render(html)
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@ -71,46 +98,77 @@ export default class Response {
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// 以html格式向前端输出内容
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render(data, code) {
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if (this.rendered) {
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if (this.#ended) {
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return
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}
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data += ''
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data = data || STATUS_TEXT[code]
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this.set('Content-Type', 'text/html')
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this.type = 'html'
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this.set('Content-Length', Buffer.byteLength(data))
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if (code) {
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this.status(code)
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this.status = code
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}
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this.end(data)
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this.body = data
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}
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// 文件下载
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sendfile(target, filename) {
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if (this.rendered) {
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sendfile(target, filename = 'untitled') {
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if (this.#ended) {
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return
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}
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var data
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let data, start, end
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this.set('Content-Type', 'application/force-download')
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this.set('Accept-Ranges', 'bytes')
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this.set('Content-Disposition', `attachment;filename="${filename}"`)
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if (!this.type) {
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this.status = 206
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this.type = 'stream'
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this.set('Content-Disposition', `attachment;filename="${filename}"`)
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this.set('Accept-Ranges', 'bytes')
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let range = this.#req.headers['range'] || ''
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if (range) {
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range = range.replace('bytes=', '')
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if (range.includes(',')) {
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// 多重范围的range请求, 暂时不支持, 直接返回整个文件
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} else {
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range = range.split('-').map(n => +n)
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;[start, end] = range
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if (end === 0) {
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end = void 0
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}
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}
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}
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}
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if (Buffer.isBuffer(target)) {
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data = target
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} else {
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if (typeof target === 'string') {
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var stat = fs.stat(target)
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let stat = fs.stat(target)
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if (stat.isFile()) {
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this.set('Content-Length', stat.size)
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fs.origin.createReadStream(target).pipe(this.origin.res)
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return
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let size = stat.size
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if (start !== void 0) {
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if (end === void 0) {
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size -= start
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} else {
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size = end - start
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}
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}
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this.set('Content-Length', size)
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return fs.origin
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.createReadStream(target, { start, end })
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.pipe(this.#res)
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}
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}
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data = Buffer.from(target + '')
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}
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if (start !== void 0) {
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data = data.slice(start, end)
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}
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this.set('Content-Length', data.length)
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this.end(data)
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this.body = data
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}
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/**
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@ -120,91 +178,56 @@ export default class Response {
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* @param {Str/Obj} data [额外数据]
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* @param {Str} callback [回调函数名]
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*/
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send(code = 200, msg = 'success', data = null, callback = null) {
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var output
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send(code = 200, msg = '', data, callback) {
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let output
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if (this.rendered) {
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if (this.#ended) {
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return
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}
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if (typeof code !== 'number') {
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if (typeof code === 'object') {
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data = code
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code = 200
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msg = STATUS_TEXT[code]
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} else {
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msg = code + ''
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code = 400
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}
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} else if (typeof msg === 'object') {
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if (msg && typeof msg === 'object') {
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callback = data
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data = msg
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code = code || 200
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msg = STATUS_TEXT[code] || 'success'
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msg = STATUS_TEXT[code]
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} else {
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msg = msg || STATUS_TEXT[code]
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}
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output = { code, msg, data }
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output = JSON.stringify(output)
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if (callback) {
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callback = callback.replace(/[^\w\-\.]/g, '')
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callback = callback.replace(/[^\w\.]/g, '')
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output = callback + '(' + output + ')'
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}
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this.set('Content-Type', 'application/json')
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this.type = 'json'
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this.set('Content-Length', Buffer.byteLength(output))
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// 只设置200以上的值
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if (code && code > 200) {
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this.status(code)
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if (code && code >= 200 && code <= 599) {
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this.status = code
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}
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this.end(output)
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}
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end(buf) {
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var code = 200
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if (this.rendered) {
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return this
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}
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if (this.statusCode) {
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code = this.statusCode
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delete this.statusCode
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}
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this.rendered = true
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this.origin.res.writeHead(code, STATUS_TEXT[code])
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this.origin.res.end(buf || '')
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this.body = output
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}
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/**
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* [get 读取已写入的头信息]
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*/
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get(key) {
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return this.origin.res.getHeader(key)
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return this.#res.getHeader(key)
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}
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/**
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* [set 设置头信息]
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*/
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set(key, val) {
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if (this.rendered) {
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if (this.#ended) {
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return this
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}
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if (arguments.length === 2) {
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var value = Array.isArray(val) ? val.map(String) : String(val)
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if (
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key.toLowerCase() === 'content-type' &&
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typeof value === 'string' &&
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value.indexOf('charset') < 0
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) {
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value += '; charset=utf-8'
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}
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this.origin.res.setHeader(key, value)
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} else {
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for (let i in key) {
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this.set(i, key[i])
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}
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}
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let value = Array.isArray(val) ? val.map(String) : String(val)
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this.#res.setHeader(key, value)
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return this
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}
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@ -214,26 +237,18 @@ export default class Response {
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* @param {String} val [description]
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*/
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append(key, val) {
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if (this.rendered) {
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if (this.#ended) {
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return
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}
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var prev = this.get(key)
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var value
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let prev = this.get(key) || []
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if (Array.isArray(val)) {
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value = val
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} else {
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value = [val]
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if (!Array.isArray(prev)) {
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prev = [prev]
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}
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if (prev) {
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if (Array.isArray(prev)) {
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value = prev.concat(val)
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} else {
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value = [prev].concat(val)
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}
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}
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return this.set(key, value)
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prev = prev.concat(val)
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return this.set(key, prev)
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}
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/**
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@ -244,7 +259,7 @@ export default class Response {
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*/
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cookie(key, val, opts = {}) {
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//读取之前已经写过的cookie缓存
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var cache = this.get('set-cookie')
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let cache = this.get('set-cookie')
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if (cache) {
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if (!Array.isArray(cache)) {
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cache = [cache]
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@ -2,6 +2,7 @@ export default {
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'100': 'Continue',
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'101': 'Switching Protocols',
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'102': 'Processing',
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'103': 'Early Hints',
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'200': 'OK',
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'201': 'Created',
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'202': 'Accepted',
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@ -11,6 +12,7 @@ export default {
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'206': 'Partial Conten',
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'207': 'Multi-Status',
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'208': 'Already Reported',
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'218': 'This is fine',
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'226': 'IM Used',
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'300': 'Multiple Choices',
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'301': 'Moved Permanently',
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@ -40,20 +42,32 @@ export default {
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'416': 'Requested Range Not Satisfiable',
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'417': 'Expectation Failed',
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'418': "I'm a teapot",
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'419': 'Page Expired',
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'420': 'Enhance Your Caim',
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'421': 'Misdirected Request',
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'422': 'Unprocessable Entity',
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'423': 'Locked',
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'424': 'Failed Dependency',
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'425': 'Unordered Collection',
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'425': 'Too Early',
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'426': 'Upgrade Required',
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'428': 'Precondition Required',
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'429': 'Too Many Requests',
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'430': 'Would Block',
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'431': 'Request Header Fields Too Large',
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'440': 'Login Time-Out',
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'444': 'No Response',
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'449': 'Retry With',
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'450': 'Blocked by Windows Parental Controls',
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'451': 'Unavailable For Legal Reasons',
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'460': 'Client Closed Connection Prematurely',
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'463': 'Too Many Forwarded IP Addresses',
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'464': 'Incompatible Protocol',
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'494': 'Request Header Too Large',
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'495': 'SSL Certificate Error',
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'496': 'SSL Certificate Required',
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'497': 'HTTP Request Sent to HTTPS Port',
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'498': 'Invalid Token',
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'499': 'Token Required or Client Closed Request',
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'500': 'Internal Server Error',
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'501': 'Not Implemented',
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'502': 'Bad Gateway',
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'506': 'Variant Also Negotiates',
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'507': 'Insufficient Storage',
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'508': 'Loop Detected',
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'509': 'Bandwidth Limit Exceeded',
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'510': 'Not Extended',
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'511': 'Network Authentication Required'
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'511': 'Network Authentication Required',
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'520': 'Web Server Is Returning an Unknown Error',
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'521': 'Web Server Is Down',
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'522': 'Connection Timed Out',
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'523': 'Origin Is Unreachable',
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'524': 'A Timeout Occurred',
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'525': 'SSL Handshake Failed',
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'526': 'Invalid SSL Certificate',
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'527': 'Railgun Listener to Origin',
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'529': 'The Service Is Overloaded',
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'530': 'Site Frozen',
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'561': 'Unauthorized',
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'598': 'Network Read Timeout Error',
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'599': 'Network Connect Timeout Error',
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}
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@ -0,0 +1,48 @@
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//
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export const CHARSET_TYPES = {
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html:1,
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txt:1,
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css:1,
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scss:1,
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xml:1,
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js:1,
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json: 1,webmanifest:1
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}
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export const MIME_TYPES = {
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html: 'text/html',
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txt: 'text/plain',
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css: 'text/css',
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xml: 'text/xml',
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gif: 'image/gif',
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jpg: 'image/jpeg',
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webp: 'image/webp',
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tiff: 'image/tiff',
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png: 'image/png',
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svg: 'image/svg+xml',
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ico: 'image/x-icon',
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bmp: 'image/x-ms-bmp',
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js: 'application/javascript',
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json: 'application/json',
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webmanifest: 'application/json',
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mp3: 'audio/mpeg',
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ogg: 'audio/ogg',
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m4a: 'audio/x-m4a',
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mp4: 'video/mp4',
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webm: 'video/webm',
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ttf: 'font/font-ttf',
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woff: 'font/font-woff',
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woff2: 'font/font-woff2',
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wast: 'application/wast',
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wasm: 'application/wasm',
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stream: 'application/octet-stream'
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}
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MIME_TYPES.vue = MIME_TYPES.js
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MIME_TYPES.scss = MIME_TYPES.css
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MIME_TYPES.htm = MIME_TYPES.html
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MIME_TYPES.jpeg = MIME_TYPES.jpg
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MIME_TYPES.tif = MIME_TYPES.tiff
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