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@tsclean/core

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Plugin for API Rest Full development, based on Clean Architecture, IoC and Dependency Injection.

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"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports.MiddlewareModule = void 0; const utils_1 = require("../router/utils"); const invalid_middleware_1 = require("../errors/exceptions/invalid-middleware"); const runtime_1 = require("../errors/exceptions/runtime"); const helpers_1 = require("../helpers"); const execution_context_host_1 = require("../helpers/execution-context-host"); const constants_1 = require("../core/injector/constants"); const request_constants_1 = require("../router/request/request-constants"); const router_exception_filters_1 = require("../router/router-exception-filters"); const router_proxy_1 = require("../router/router-proxy"); const builder_1 = require("./builder"); const resolver_1 = require("./resolver"); const routes_mapper_1 = require("./routes-mapper"); const utils_2 = require("../utils"); const enums_1 = require("../enums"); const services_1 = require("../services"); const route_info_path_extractor_1 = require("./route-info-path-extractor"); class MiddlewareModule { constructor() { this.routerProxy = new router_proxy_1.RouterProxy(); this.exceptionFiltersCache = new WeakMap(); this.logger = new services_1.Logger(MiddlewareModule.name); } async register(middlewareContainer, container, config, injector, httpAdapter, graphInspector, options) { this.appOptions = options; const appRef = container.getHttpAdapterRef(); this.routerExceptionFilter = new router_exception_filters_1.RouterExceptionFilters(container, config, appRef); this.routesMapper = new routes_mapper_1.RoutesMapper(container, config); this.resolver = new resolver_1.MiddlewareResolver(middlewareContainer); this.routeInfoPathExtractor = new route_info_path_extractor_1.RouteInfoPathExtractor(config); this.injector = injector; this.container = container; this.httpAdapter = httpAdapter; this.graphInspector = graphInspector; const modules = container.getModules(); await this.resolveMiddleware(middlewareContainer, modules); } async resolveMiddleware(middlewareContainer, modules) { const moduleEntries = [...modules.entries()]; const loadMiddlewareConfiguration = async ([moduleName, moduleRef]) => { await this.loadConfiguration(middlewareContainer, moduleRef, moduleName); await this.resolver.resolveInstances(moduleRef, moduleName); }; await Promise.all(moduleEntries.map(loadMiddlewareConfiguration)); } async loadConfiguration(middlewareContainer, moduleRef, moduleKey) { const { instance } = moduleRef; if (!instance.configure) { return; } const middlewareBuilder = new builder_1.MiddlewareBuilder(this.routesMapper, this.httpAdapter); await instance.configure(middlewareBuilder); if (!(middlewareBuilder instanceof builder_1.MiddlewareBuilder)) { return; } const config = middlewareBuilder.build(); middlewareContainer.insertConfig(config, moduleKey); } async registerMiddleware(middlewareContainer, applicationRef) { const configs = middlewareContainer.getConfigurations(); const registerAllConfigs = async (moduleKey, middlewareConfig) => { for (const config of middlewareConfig) { await this.registerMiddlewareConfig(middlewareContainer, config, moduleKey, applicationRef); } }; const entriesSortedByDistance = [...configs.entries()].sort(([moduleA], [moduleB]) => { return (this.container.getModuleByKey(moduleA).distance - this.container.getModuleByKey(moduleB).distance); }); for (const [moduleRef, moduleConfigurations] of entriesSortedByDistance) { await registerAllConfigs(moduleRef, [...moduleConfigurations]); } } async registerMiddlewareConfig(middlewareContainer, config, moduleKey, applicationRef) { const { forRoutes } = config; for (const routeInfo of forRoutes) { await this.registerRouteMiddleware(middlewareContainer, routeInfo, config, moduleKey, applicationRef); } } async registerRouteMiddleware(middlewareContainer, routeInfo, config, moduleKey, applicationRef) { const middlewareCollection = [].concat(config.middleware); const moduleRef = this.container.getModuleByKey(moduleKey); for (const metatype of middlewareCollection) { const collection = middlewareContainer.getMiddlewareCollection(moduleKey); const instanceWrapper = collection.get(metatype); if ((0, utils_2.isUndefined)(instanceWrapper)) { throw new runtime_1.RuntimeException(); } if (instanceWrapper.isTransient) { return; } await this.bindHandler(instanceWrapper, applicationRef, routeInfo, moduleRef, collection); } } async bindHandler(wrapper, applicationRef, routeInfo, moduleRef, collection) { const { instance, metaType } = wrapper; if ((0, utils_2.isUndefined)(instance === null || instance === void 0 ? void 0 : instance.use)) { throw new invalid_middleware_1.InvalidMiddlewareException(metaType.name); } const isStatic = wrapper.isDependencyTreeStatic(); if (isStatic) { const proxy = await this.createProxy(instance); return this.registerHandler(applicationRef, routeInfo, proxy); } const isTreeDurable = wrapper.isDependencyTreeDurable(); await this.registerHandler(applicationRef, routeInfo, async (req, res, next) => { try { const contextId = this.getContextId(req, isTreeDurable); const contextInstance = await this.injector.loadPerContext(instance, moduleRef, collection, contextId); const proxy = await this.createProxy(contextInstance, contextId); return proxy(req, res, next); } catch (err) { let exceptionsHandler = this.exceptionFiltersCache.get(instance.use); if (!exceptionsHandler) { exceptionsHandler = this.routerExceptionFilter.create(instance, instance.use, undefined); this.exceptionFiltersCache.set(instance.use, exceptionsHandler); } const host = new execution_context_host_1.ExecutionContextHost([req, res, next]); exceptionsHandler.next(err, host); } }); } async createProxy(instance, contextId = constants_1.STATIC_CONTEXT) { const exceptionsHandler = this.routerExceptionFilter.create(instance, instance.use, undefined, contextId); const middleware = instance.use.bind(instance); return this.routerProxy.createProxy(middleware, exceptionsHandler); } async registerHandler(applicationRef, routeInfo, proxy) { const { method } = routeInfo; const paths = this.routeInfoPathExtractor.extractPathsFrom(routeInfo); const isMethodAll = (0, utils_1.isRequestMethodAll)(method); const requestMethod = enums_1.RequestMethod[method]; const router = await applicationRef.createMiddlewareFactory(method); const middlewareFunction = isMethodAll ? proxy : (req, res, next) => { if (applicationRef.getRequestMethod(req) === requestMethod) { return proxy(req, res, next); } return next(); }; const pathsToApplyMiddleware = []; paths.some(path => path.match(/^\/?$/)) ? pathsToApplyMiddleware.push('/') : pathsToApplyMiddleware.push(...paths); pathsToApplyMiddleware.forEach(path => router(path, middlewareFunction)); } getContextId(request, isTreeDurable) { const contextId = helpers_1.ContextIdFactory.getByRequest(request); if (!request[request_constants_1.REQUEST_CONTEXT_ID]) { Object.defineProperty(request, request_constants_1.REQUEST_CONTEXT_ID, { value: contextId, enumerable: false, writable: false, configurable: false }); const requestProviderValue = isTreeDurable ? contextId.payload : request; this.container.registerRequestProvider(requestProviderValue, contextId); } return contextId; } } exports.MiddlewareModule = MiddlewareModule; //# 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{ isRequestMethodAll } from '../router/utils'\nimport { ApplicationConfig } from '../app/application-config'\nimport { InvalidMiddlewareException } from '../errors/exceptions/invalid-middleware'\nimport { RuntimeException } from '../errors/exceptions/runtime'\nimport { ContextIdFactory } from '../helpers'\nimport { ExecutionContextHost } from '../helpers/execution-context-host'\nimport { STATIC_CONTEXT } from '../core/injector/constants'\nimport { ContainerIoC, ContextId } from '../core/injector'\nimport { Injector } from '../core/injector/injector'\nimport { InstanceWrapper } from '../core/injector/instance-wrapper'\nimport { Module } from '../core/injector/module'\nimport { REQUEST_CONTEXT_ID } from '../router/request/request-constants'\nimport { RouterExceptionFilters } from '../router/router-exception-filters'\nimport { RouterProxy } from '../router/router-proxy'\nimport { MiddlewareBuilder } from './builder'\nimport { MiddlewareContainer } from './container'\nimport { MiddlewareResolver } from './resolver'\nimport { RoutesMapper } from './routes-mapper'\nimport {\n  ApplicationContextOptionsInterface,\n  HttpServer,\n  MiddlewareConfigurationInterface,\n  MiddlewareInterface,\n  RouteInfo\n} from '../contracts'\nimport { addLeadingSlash, isUndefined } from '../utils'\nimport { RequestMethod } from '../enums'\nimport { InstanceTokenType } from '../types'\nimport { Logger } from '../services'\nimport { GraphInspector } from '../inspector'\nimport { RouteInfoPathExtractor } from './route-info-path-extractor'\n\nexport class MiddlewareModule<\n  TAppOptions extends ApplicationContextOptionsInterface = ApplicationContextOptionsInterface\n> {\n  private readonly routerProxy = new RouterProxy()\n  private readonly exceptionFiltersCache = new WeakMap()\n  private readonly logger = new Logger(MiddlewareModule.name)\n\n  private injector: Injector\n  private routerExceptionFilter: RouterExceptionFilters\n  private routesMapper: RoutesMapper\n  private resolver: MiddlewareResolver\n  private container: ContainerIoC\n  private httpAdapter: HttpServer\n  private graphInspector: GraphInspector\n  private appOptions: TAppOptions\n  private routeInfoPathExtractor: RouteInfoPathExtractor\n\n  public async register (\n    middlewareContainer: MiddlewareContainer,\n    container: ContainerIoC,\n    config: ApplicationConfig,\n    injector: Injector,\n    httpAdapter: HttpServer,\n    graphInspector: GraphInspector,\n    options: TAppOptions\n  ) {\n    this.appOptions = options\n\n    const appRef = container.getHttpAdapterRef()\n    this.routerExceptionFilter = new RouterExceptionFilters(\n      container,\n      config,\n      appRef\n    )\n    this.routesMapper = new RoutesMapper(container, config)\n    this.resolver = new MiddlewareResolver(middlewareContainer)\n    this.routeInfoPathExtractor = new RouteInfoPathExtractor(config)\n\n    this.injector = injector\n    this.container = container\n    this.httpAdapter = httpAdapter\n    this.graphInspector = graphInspector\n\n    const modules = container.getModules()\n    await this.resolveMiddleware(middlewareContainer, modules)\n  }\n\n  public async resolveMiddleware (\n    middlewareContainer: MiddlewareContainer,\n    modules: Map<string, Module>\n  ) {\n    const moduleEntries = [...modules.entries()]\n    const loadMiddlewareConfiguration = async ([moduleName, moduleRef]: [\n      string,\n      Module\n    ]) => {\n      await this.loadConfiguration(middlewareContainer, moduleRef, moduleName)\n      await this.resolver.resolveInstances(moduleRef, moduleName)\n    }\n    await Promise.all(moduleEntries.map(loadMiddlewareConfiguration))\n  }\n\n  public async loadConfiguration (\n    middlewareContainer: MiddlewareContainer,\n    moduleRef: Module,\n    moduleKey: string\n  ) {\n    const { instance } = moduleRef\n    if (!instance.configure) {\n      return\n    }\n    const middlewareBuilder = new MiddlewareBuilder(\n      this.routesMapper,\n      this.httpAdapter\n    )\n    await instance.configure(middlewareBuilder)\n\n    if (!(middlewareBuilder instanceof MiddlewareBuilder)) {\n      return\n    }\n    const config = middlewareBuilder.build()\n    middlewareContainer.insertConfig(config, moduleKey)\n  }\n\n  public async registerMiddleware (\n    middlewareContainer: MiddlewareContainer,\n    applicationRef: any\n  ) {\n    const configs = middlewareContainer.getConfigurations()\n    const registerAllConfigs = async (\n      moduleKey: string,\n      middlewareConfig: MiddlewareConfigurationInterface[]\n    ) => {\n      for (const config of middlewareConfig) {\n        await this.registerMiddlewareConfig(\n          middlewareContainer,\n          config,\n          moduleKey,\n          applicationRef\n        )\n      }\n    }\n\n    const entriesSortedByDistance = [...configs.entries()].sort(\n      ([moduleA], [moduleB]) => {\n        return (\n          this.container.getModuleByKey(moduleA).distance -\n          this.container.getModuleByKey(moduleB).distance\n        )\n      }\n    )\n    for (const [moduleRef, moduleConfigurations] of entriesSortedByDistance) {\n      await registerAllConfigs(moduleRef, [...moduleConfigurations])\n    }\n  }\n\n  public async registerMiddlewareConfig (\n    middlewareContainer: MiddlewareContainer,\n    config: MiddlewareConfigurationInterface,\n    moduleKey: string,\n    applicationRef: any\n  ) {\n    const { forRoutes } = config\n    for (const routeInfo of forRoutes) {\n      await this.registerRouteMiddleware(\n        middlewareContainer,\n        routeInfo as RouteInfo,\n        config,\n        moduleKey,\n        applicationRef\n      )\n    }\n  }\n\n  public async registerRouteMiddleware (\n    middlewareContainer: MiddlewareContainer,\n    routeInfo: RouteInfo,\n    config: MiddlewareConfigurationInterface,\n    moduleKey: string,\n    applicationRef: any\n  ) {\n    const middlewareCollection = [].concat(config.middleware)\n    const moduleRef = this.container.getModuleByKey(moduleKey)\n\n    for (const metatype of middlewareCollection) {\n      const collection = middlewareContainer.getMiddlewareCollection(moduleKey)\n      const instanceWrapper = collection.get(metatype)\n      if (isUndefined(instanceWrapper)) {\n        throw new RuntimeException()\n      }\n      if (instanceWrapper.isTransient) {\n        return\n      }\n      await this.bindHandler(\n        instanceWrapper,\n        applicationRef,\n        routeInfo,\n        moduleRef,\n        collection\n      )\n    }\n  }\n\n  private async bindHandler (\n    wrapper: InstanceWrapper<MiddlewareInterface>,\n    applicationRef: HttpServer,\n    routeInfo: RouteInfo,\n    moduleRef: Module,\n    collection: Map<InstanceTokenType, InstanceWrapper>\n  ) {\n    const { instance, metaType } = wrapper\n    if (isUndefined(instance?.use)) {\n      throw new InvalidMiddlewareException(metaType.name)\n    }\n    const isStatic = wrapper.isDependencyTreeStatic()\n    if (isStatic) {\n      const proxy = await this.createProxy(instance)\n      return this.registerHandler(applicationRef, routeInfo, proxy)\n    }\n\n    const isTreeDurable = wrapper.isDependencyTreeDurable()\n\n    await this.registerHandler(\n      applicationRef,\n      routeInfo,\n      async <TRequest, TResponse>(\n        req: TRequest,\n        res: TResponse,\n        next: () => void\n      ) => {\n        try {\n          const contextId = this.getContextId(req, isTreeDurable)\n          const contextInstance = await this.injector.loadPerContext(\n            instance,\n            moduleRef,\n            collection,\n            contextId\n          )\n          const proxy = await this.createProxy<TRequest, TResponse>(\n            contextInstance,\n            contextId\n          )\n          return proxy(req, res, next)\n        } catch (err) {\n          let exceptionsHandler = this.exceptionFiltersCache.get(instance.use)\n          if (!exceptionsHandler) {\n            exceptionsHandler = this.routerExceptionFilter.create(\n              instance,\n              instance.use,\n              undefined\n            )\n            this.exceptionFiltersCache.set(instance.use, exceptionsHandler)\n          }\n          const host = new ExecutionContextHost([req, res, next])\n          exceptionsHandler.next(err, host)\n        }\n      }\n    )\n  }\n\n  private async createProxy<TRequest = unknown, TResponse = unknown> (\n    instance: MiddlewareInterface,\n    contextId = STATIC_CONTEXT\n  ): Promise<(req: TRequest, res: TResponse, next: () => void) => void> {\n    const exceptionsHandler = this.routerExceptionFilter.create(\n      instance,\n      instance.use,\n      undefined,\n      contextId\n    )\n    const middleware = instance.use.bind(instance)\n    return this.routerProxy.createProxy(middleware, exceptionsHandler)\n  }\n\n  private async registerHandler (\n    applicationRef: HttpServer,\n    routeInfo: RouteInfo,\n    proxy: <TRequest, TResponse>(\n      req: TRequest,\n      res: TResponse,\n      next: () => void\n    ) => void\n  ) {\n    const { method } = routeInfo\n    const paths = this.routeInfoPathExtractor.extractPathsFrom(routeInfo)\n    const isMethodAll = isRequestMethodAll(method)\n    const requestMethod = RequestMethod[method]\n    const router = await applicationRef.createMiddlewareFactory(method)\n    const middlewareFunction = isMethodAll\n      ? proxy\n      : <TRequest, TResponse>(\n          req: TRequest,\n          res: TResponse,\n          next: () => void\n        ) => {\n          if (applicationRef.getRequestMethod(req) === requestMethod) {\n            return proxy(req, res, next)\n          }\n          return next()\n        }\n    const pathsToApplyMiddleware = []\n    paths.some(path => path.match(/^\\/?$/))\n      ? pathsToApplyMiddleware.push('/')\n      : pathsToApplyMiddleware.push(...paths)\n    pathsToApplyMiddleware.forEach(path => router(path, middlewareFunction))\n  }\n\n  private getContextId (request: unknown, isTreeDurable: boolean): ContextId {\n    const contextId = ContextIdFactory.getByRequest(request)\n    if (!request[REQUEST_CONTEXT_ID]) {\n      Object.defineProperty(request, REQUEST_CONTEXT_ID, {\n        value: contextId,\n        enumerable: false,\n        writable: false,\n        configurable: false\n      })\n\n      const requestProviderValue = isTreeDurable ? contextId.payload : request\n      this.container.registerRequestProvider(requestProviderValue, contextId)\n    }\n    return contextId\n  }\n}\n"]}