ms/packages/web/src/server.ts

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import * as querystring from 'querystring'
import { web, plugin } from '@ccms/api'
import { provideSingleton, JSClass, postConstruct, Container, ContainerInstance, inject } from '@ccms/container'
import { WebProxyBeanName, FilterProxyBeanName, METADATA_KEY, PARAM_TYPE } from './constants'
import { Context, InterceptorAdapter, RequestHandler, interfaces } from './interfaces'
import { getControllerActions, getActionMetadata, getControllerMetadata, getActionParams, getControllerMetadatas } from './decorators'
const HttpServletRequestWrapper = Java.type('javax.servlet.http.HttpServletRequestWrapper')
const HttpServletResponseWrapper = Java.type('javax.servlet.http.HttpServletResponseWrapper')
const ServletInputStream = Java.type('javax.servlet.ServletInputStream')
const ServletOutputStream = Java.type('javax.servlet.ServletOutputStream')
@provideSingleton(web.Server)
export class Server {
@JSClass('pw.yumc.MiaoScript.web.WebServerProxy')
private WebServerProxy: any
@JSClass('pw.yumc.MiaoScript.web.WebFilterProxy')
private WebFilterProxy: any
@inject(ContainerInstance)
private container: Container
private StreamUtils = org.springframework.util.StreamUtils
private ResponseEntity = org.springframework.http.ResponseEntity
private pluginControllers: Map<string, any>
private interceptors: Map<string, InterceptorAdapter>
private methodMappings: Map<string, Map<string, RequestHandler>>
private beanFactory: org.springframework.beans.factory.support.DefaultListableBeanFactory
@postConstruct()
initialization() {
this.beanFactory = base.getInstance().getAutowireCapableBeanFactory()
this.interceptors = new Map()
this.methodMappings = new Map()
this.start()
process.on('plugin.after.enable', (plugin: plugin.Plugin) => this.registryPlugin(plugin))
process.on('plugin.after.disable', (plugin: plugin.Plugin) => this.unregistryPlugin(plugin))
}
start() {
this.registryFilterProxy()
this.registryWebProxy()
}
stop() {
try {
this.beanFactory.destroySingleton(FilterProxyBeanName)
this.beanFactory.destroySingleton(WebProxyBeanName)
} catch (error) {
console.ex(error)
}
}
registryPlugin(plugin: plugin.Plugin) {
let controllers = getControllerMetadatas(plugin).values()
for (const controller of controllers) {
console.debug(`Plugin ${plugin.description.name} Registry Controller ${controller.name}.`)
this.registryController(controller.target)
}
}
unregistryPlugin(plugin: plugin.Plugin) {
let controllers = getControllerMetadatas(plugin).values()
for (const controller of controllers) {
console.debug(`Plugin ${plugin.description.name} Unregistry Controller ${controller.name}.`)
this.unregistryController(controller.target)
}
}
registryController(target: any) {
if (!target) { throw new Error('Controller can\'t be undefiend!') }
let controllerMetadata = getControllerMetadata(target)
if (!controllerMetadata) { throw new Error(`Controller ${target.name} must have @Controller decorator!`) }
target = this.bindController(target)
let actions = getControllerActions(target)
for (const action of actions) {
let actionMetadata = getActionMetadata(target, action)
let path = `${controllerMetadata.path || ''}${actionMetadata.path || ''}`
if (!path) throw new Error(`Controller ${controllerMetadata.name} Action ${actionMetadata.name} path is empty!`)
if (!this.methodMappings.has(path)) { this.methodMappings.set(path, new Map()) }
console.debug(`Controller ${controllerMetadata.name} Registry ${path} Action to ${actionMetadata.executor || '<anonymous>'} function.`)
this.methodMappings.get(path).set(actionMetadata.method || 'ALL', (ctx: Context) => {
let args = []
let params = getActionParams(target, action)
for (const index in params) {
let param = params[index]
let paramValue = undefined
switch (param.type) {
case PARAM_TYPE.REQUEST: paramValue = ctx.request; break
case PARAM_TYPE.RESPONSE: paramValue = ctx.response; break
case PARAM_TYPE.QUERY: paramValue = ctx.params[param.name]; break
case PARAM_TYPE.HEADER: paramValue = ctx.headers[param.name]; break
case PARAM_TYPE.BODY: paramValue = ctx.body; break
case PARAM_TYPE.COOKIE: paramValue = ctx.cookies[param.name]; break
}
if (param.require && !paramValue) {
return {
status: 400,
msg: param.message ?? `Param Type ${param.type} require not empty!`,
data: param
}
}
args[param.index] = paramValue ?? param.default
}
return target[actionMetadata.executor].apply(target, args)
})
}
}
private bindController(target: any) {
try {
this.container.rebind(METADATA_KEY.Controller).to(target).inSingletonScope().whenTargetNamed(target.name)
} catch{
this.container.bind(METADATA_KEY.Controller).to(target).inSingletonScope().whenTargetNamed(target.name)
}
return this.container.getNamed(METADATA_KEY.Controller, target.name)
}
unregistryController(target: any) {
if (!target) { throw new Error('Controller can\'t be undefiend!') }
let controllerMetadata = getControllerMetadata(target)
if (!controllerMetadata) { throw new Error(`Controller ${target.name} must have @Controller decorator!`) }
try {
target = this.container.getNamed(METADATA_KEY.Controller, target.name)
} catch (error) {
throw new Error(`Controller ${target.name} not registry! err: ${error}`)
}
let actions = getControllerActions(target)
for (const action of actions) {
let actionMetadata = getActionMetadata(target, action)
let path = `${controllerMetadata.path || ''}${actionMetadata.path || ''}`
if (!this.methodMappings.has(path)) { continue }
this.methodMappings.get(path).delete(actionMetadata.method)
console.debug(`Controller ${controllerMetadata.name} Unregistry ${path} Action.`)
}
}
registryMapping(path: string, handler: RequestHandler) {
console.debug(`Registry Mapping ${path} to handle ${handler.name || '<anonymous>'} function.`)
if (!this.methodMappings.has(path)) { this.methodMappings.set(path, new Map()) }
this.methodMappings.get(path).set("ALL", handler)
}
unregistryMapping(path: string) {
if (this.methodMappings.has(path)) { this.methodMappings.get(path).delete("ALL") }
}
registryInterceptor(interceptor: InterceptorAdapter) {
console.debug(`Registry ${interceptor.name} Interceptor.`)
this.interceptors.set(interceptor.name, interceptor)
}
unregistryInterceptor(interceptor: string | InterceptorAdapter) {
if (typeof interceptor === "string") { interceptor = { name: interceptor } }
console.debug(`Unregistry ${interceptor.name} Interceptor.`)
this.interceptors.delete(interceptor.name)
}
private registryFilterProxy() {
try { this.beanFactory.destroySingleton(FilterProxyBeanName) } catch (ex) { }
var WebFilterProxyNashorn = Java.extend(this.WebFilterProxy, {
doFilter: (servletRequest: javax.servlet.http.HttpServletRequest, servletResponse: javax.servlet.http.HttpServletResponse, filterChain: javax.servlet.FilterChain) => {
filterChain.doFilter(servletRequest, servletResponse)
}
})
this.beanFactory.registerSingleton(FilterProxyBeanName, new WebFilterProxyNashorn())
}
// private getRequestWrapper(servletRequest: javax.servlet.http.HttpServletRequest) {
// var body = org.springframework.util.StreamUtils.copyToByteArray(servletRequest.getInputStream())
// var HttpServletRequestWrapperAdapter = Java.extend(HttpServletRequestWrapper, {
// getInputStream: () => {
// var bais = new java.io.ByteArrayInputStream(body)
// return new ServletInputStream({
// read: () => bais.read(),
// isFinished: () => bais.available() == 0
// })
// }
// })
// var wrapper = new HttpServletRequestWrapperAdapter(servletRequest)
// return wrapper
// }
// private getResponseWrapper(servletResponse: javax.servlet.http.HttpServletResponse) {
// var HttpServletRequestWrapperAdapter = Java.extend(HttpServletRequestWrapper, {
// getOutputStream: () => {
// return new ServletOutputStream({
// })
// }
// })
// var wrapper = new HttpServletRequestWrapperAdapter(servletResponse)
// return wrapper
// }
private notFound(ctx: Context) {
return {
status: 404,
msg: "handlerMapping Not Found!",
method: ctx.request.getMethod(),
path: ctx.request.getRequestURI(),
timestamp: Date.now()
}
}
private registryWebProxy() {
try { this.beanFactory.destroySingleton(WebProxyBeanName) } catch (ex) { }
var WebServerProxyNashorn = Java.extend(this.WebServerProxy, {
process: (req: javax.servlet.http.HttpServletRequest, resp: javax.servlet.http.HttpServletResponse) => {
let ctx: Context = { request: req, response: resp, params: {}, body: {} }
ctx.url = req.getRequestURI()
// @ts-ignore
ctx.headers = { __noSuchProperty__: (name: string) => req.getHeader(name) }
ctx.cookies = {}
for (const cookie of (req.getCookies() || [])) {
ctx.cookies[cookie.getName()] = cookie.getValue()
}
if (req.getQueryString()) {
ctx.url += `?${req.getQueryString()}`
ctx.params = querystring.parse(req.getQueryString())
}
if (req.getMethod() == "POST") {
ctx.body = this.StreamUtils.copyToString(req.getInputStream(), java.nio.charset.StandardCharsets.UTF_8)
if ((ctx.headers['Content-Type'] || '').includes('application/json')) {
try {
ctx.body = JSON.parse(ctx.body)
} catch (error) {
return {
status: 500,
msg: `parse json body error: ${error}`,
path: ctx.url,
error: console.stack(error, false),
timestamp: Date.now()
}
}
}
}
let result = this.process(ctx)
result?.status && resp.setStatus(result.status)
return result
}
})
this.beanFactory.registerSingleton(WebProxyBeanName, new WebServerProxyNashorn())
}
private process(ctx: Context) {
let startTime = Date.now()
for (const [_, interceptor] of this.interceptors) {
if (interceptor.preHandle) {
try {
let startTime = Date.now()
ctx.result = interceptor.preHandle(ctx)
let preHandleTime = Date.now() - startTime
if (preHandleTime > 20) {
console.debug(`[WARN] Interceptor ${interceptor.name} preHandle cost time ${preHandleTime}ms!`)
}
if (ctx.result) { return ctx.result }
} catch (error) {
console.ex(error)
return {
status: 500,
msg: `Interceptor ${interceptor.name} preHandle error: ${error}`,
path: ctx.url,
error: console.stack(error, false),
timestamp: Date.now()
}
}
}
}
let path = ctx.request.getRequestURI()
if (!this.methodMappings.has(path)) return this.notFound(ctx)
let mappings = this.methodMappings.get(ctx.request.getRequestURI())
ctx.handler = mappings.get(ctx.request.getMethod()) || mappings.get("ALL")
ctx.result = this.execRequestHandle(ctx)
for (const [_, interceptor] of this.interceptors) {
if (interceptor.postHandle) {
try {
let startTime = Date.now()
ctx.result = interceptor.postHandle(ctx)
let preHandleTime = Date.now() - startTime
if (preHandleTime > 20) {
console.debug(`[WARN] Interceptor ${interceptor.name} preHandle cost time ${preHandleTime}ms!`)
}
} catch (error) {
return {
status: 500,
msg: `Interceptor ${interceptor.name} postHandle error: ${error}`,
path: ctx.url,
error: console.stack(error, false),
timestamp: Date.now()
}
}
}
}
console.debug(`
===================== MiaoSpring =====================
Request Method : ${ctx.request.getMethod()}
Request URL : ${ctx.url}
Request Body : ${JSON.stringify(ctx.body)}
Response Body : ${JSON.stringify(Java.asJSONCompatible(ctx.result))}
Handle Time : ${Date.now() - startTime}ms
======================================================`)
return ctx.result
}
private execRequestHandle(ctx: Context) {
if (!ctx.handler) return this.notFound(ctx)
try {
return ctx.handler(ctx)
} catch (error) {
return {
status: 500,
msg: '' + error,
path: ctx.url,
error: console.stack(error, false),
timestamp: Date.now()
}
}
}
}