723 lines
22 KiB
TypeScript
723 lines
22 KiB
TypeScript
import { nanoid } from 'nanoid';
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import { CustomError } from './result/error.ts';
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import { Schema, Rule, createSchema } from './validator/index.ts';
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import { pick } from './utils/pick.ts';
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import { get } from 'lodash-es';
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export type RouterContextT = { code?: number; [key: string]: any };
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export type RouteContext<T = { code?: number }, S = any> = {
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// run first
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query?: { [key: string]: any };
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// response body
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/** return body */
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body?: number | string | Object;
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/** return code */
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code?: number;
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/** return msg */
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message?: string;
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// 传递状态
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state?: S;
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// transfer data
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/**
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* 当前路径
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*/
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currentPath?: string;
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/**
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* 当前key
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*/
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currentKey?: string;
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/**
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* 当前route
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*/
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currentRoute?: Route;
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/**
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* 进度
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*/
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progress?: [string, string][];
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// onlyForNextRoute will be clear after next route
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nextQuery?: { [key: string]: any };
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// end
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end?: boolean;
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// 处理router manager
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// TODO:
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/**
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* 请求 route的返回结果，包函ctx
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*/
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queryRouter?: QueryRouter;
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error?: any;
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/** 请求 route的返回结果，包函ctx */
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call?: (
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message: { path: string; key?: string; payload?: any; [key: string]: any } | { id: string; apyload?: any; [key: string]: any },
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ctx?: RouteContext & { [key: string]: any },
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) => Promise<any>;
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/** 请求 route的返回结果，不包函ctx */
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queryRoute?: (message: { path: string; key?: string; payload?: any }, ctx?: RouteContext & { [key: string]: any }) => Promise<any>;
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index?: number;
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throw?: (code?: number | string, message?: string, tips?: string) => void;
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/** 是否需要序列化 */
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needSerialize?: boolean;
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} & T;
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export type Run<T = any> = (ctx: RouteContext<T>) => Promise<typeof ctx | null | void>;
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export type NextRoute = Pick<Route, 'id' | 'path' | 'key'>;
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export type RouteOpts = {
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path?: string;
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key?: string;
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id?: string;
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run?: Run;
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nextRoute?: NextRoute; // route to run after this route
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description?: string;
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metadata?: { [key: string]: any };
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middleware?: Route[] | string[]; // middleware
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type?: 'route' | 'middleware';
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/**
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* validator: {
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* packageName: {
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* type: 'string',
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* required: true,
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* },
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* }
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*/
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validator?: { [key: string]: Rule };
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schema?: { [key: string]: Schema<any> };
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isVerify?: boolean;
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verify?: (ctx?: RouteContext, dev?: boolean) => boolean;
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verifyKey?: (key: string, ctx?: RouteContext, dev?: boolean) => boolean;
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/**
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* $#$ will be used to split path and key
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*/
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idUsePath?: boolean;
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/**
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* id 合并的分隔符，默认为 $#$
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*/
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delimiter?: string;
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isDebug?: boolean;
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};
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export type DefineRouteOpts = Omit<RouteOpts, 'idUsePath' | 'verify' | 'verifyKey' | 'nextRoute'>;
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const pickValue = ['path', 'key', 'id', 'description', 'type', 'validator', 'middleware'] as const;
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export type RouteInfo = Pick<Route, (typeof pickValue)[number]>;
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export class Route<U = { [key: string]: any }> {
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/**
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* 一级路径
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*/
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path?: string;
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/**
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* 二级路径
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*/
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key?: string;
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id?: string;
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share? = false;
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run?: Run;
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nextRoute?: NextRoute; // route to run after this route
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description?: string;
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metadata?: { [key: string]: any };
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middleware?: (Route | string)[]; // middleware
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type? = 'route';
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private _validator?: { [key: string]: Rule };
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schema?: { [key: string]: Schema<any> };
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data?: any;
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/**
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* 是否需要验证
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*/
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isVerify?: boolean;
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/**
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* 是否开启debug，开启后会打印错误信息
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*/
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isDebug?: boolean;
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constructor(path: string, key: string = '', opts?: RouteOpts) {
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path = path.trim();
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key = key.trim();
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this.path = path;
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this.key = key;
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if (opts) {
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this.id = opts.id || nanoid();
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if (!opts.id && opts.idUsePath) {
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const delimiter = opts.delimiter ?? '$#$';
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this.id = path + delimiter + key;
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}
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this.run = opts.run;
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this.nextRoute = opts.nextRoute;
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this.description = opts.description;
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this.metadata = opts.metadata;
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this.type = opts.type || 'route';
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this.validator = opts.validator;
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this.middleware = opts.middleware || [];
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this.key = opts.key || key;
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this.path = opts.path || path;
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this.isVerify = opts.isVerify ?? true;
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this.createSchema();
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} else {
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this.isVerify = true;
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this.middleware = [];
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this.id = nanoid();
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}
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this.isDebug = opts?.isDebug ?? false;
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}
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private createSchema() {
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try {
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const validator = this.validator;
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const keys = Object.keys(validator || {});
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const schemaList = keys.map((key) => {
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return { [key]: createSchema(validator[key]) };
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});
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const schema = schemaList.reduce((prev, current) => {
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return { ...prev, ...current };
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}, {});
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this.schema = schema;
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} catch (e) {
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console.error('createSchema error:', e);
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}
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}
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/**
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* set validator and create schema
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* @param validator
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*/
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set validator(validator: { [key: string]: Rule }) {
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this._validator = validator;
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this.createSchema();
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}
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get validator() {
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return this._validator || {};
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}
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/**
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* has code, body, message in ctx, return ctx if has error
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* @param ctx
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* @param dev
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* @returns
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*/
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verify(ctx: RouteContext, dev = false) {
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const query = ctx.query || {};
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const schema = this.schema || {};
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const validator = this.validator;
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const check = () => {
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const queryKeys = Object.keys(validator);
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for (let i = 0; i < queryKeys.length; i++) {
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const key = queryKeys[i];
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const value = query[key];
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if (schema[key]) {
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const result = schema[key].safeParse(value);
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if (!result.success) {
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const path = result.error.errors[0]?.path?.join?.('.properties.');
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let message = 'Invalid params';
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if (path) {
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const keyS = `${key}.properties.${path}.message`;
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message = get(validator, keyS, 'Invalid params') as any;
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}
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throw new CustomError(500, message);
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}
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}
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}
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};
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check();
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}
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/**
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* Need to manully call return ctx fn and configure body, code, message
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* @param key
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* @param ctx
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* @param dev
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* @returns
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*/
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verifyKey(key: string, ctx: RouteContext, dev = false) {
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const query = ctx.query || {};
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const schema = this.schema || {};
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const validator = this.validator;
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const check = () => {
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const value = query[key];
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if (schema[key]) {
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try {
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schema[key].parse(value);
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} catch (e) {
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if (dev) {
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return {
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message: validator[key].message || 'Invalid params',
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path: this.path,
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key: this.key,
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error: e.message.toString(),
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};
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}
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return {
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message: validator[key].message || 'Invalid params',
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path: this.path,
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key: this.key,
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};
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}
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}
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};
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const checkRes = check();
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return checkRes;
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}
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setValidator(validator: { [key: string]: Rule }) {
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this.validator = validator;
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return this;
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}
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define<T extends { [key: string]: any } = RouterContextT>(opts: DefineRouteOpts): this;
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define<T extends { [key: string]: any } = RouterContextT>(fn: Run<T & U>): this;
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define<T extends { [key: string]: any } = RouterContextT>(key: string, fn: Run<T & U>): this;
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define<T extends { [key: string]: any } = RouterContextT>(path: string, key: string, fn: Run<T & U>): this;
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define(...args: any[]) {
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const [path, key, opts] = args;
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// 全覆盖，所以opts需要准确，不能由idUsePath 需要check的变量
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const setOpts = (opts: DefineRouteOpts) => {
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const keys = Object.keys(opts);
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const checkList = ['path', 'key', 'run', 'nextRoute', 'description', 'metadata', 'middleware', 'type', 'validator', 'isVerify', 'isDebug'];
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for (let item of keys) {
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if (!checkList.includes(item)) {
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continue;
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}
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if (item === 'validator') {
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this.validator = opts[item];
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continue;
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}
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if (item === 'middleware') {
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this.middleware = this.middleware.concat(opts[item]);
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continue;
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}
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this[item] = opts[item];
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}
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};
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if (typeof path === 'object') {
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setOpts(path);
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return this;
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}
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if (typeof path === 'function') {
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this.run = path;
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return this;
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}
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if (typeof path === 'string' && typeof key === 'function') {
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setOpts({ path, run: key });
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return this;
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}
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if (typeof path === 'string' && typeof key === 'string' && typeof opts === 'function') {
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setOpts({ path, key, run: opts });
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return this;
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}
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return this;
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}
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addTo(router: QueryRouter | { add: (route: Route) => void; [key: string]: any }) {
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router.add(this);
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}
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setData(data: any) {
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this.data = data;
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return this;
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}
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throw(code?: number | string, message?: string, tips?: string): void;
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throw(...args: any[]) {
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throw new CustomError(...args);
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}
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}
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export class QueryRouter {
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routes: Route[];
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maxNextRoute = 40;
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context?: RouteContext = {}; // default context for call
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constructor() {
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this.routes = [];
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}
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add(route: Route) {
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const has = this.routes.find((r) => r.path === route.path && r.key === route.key);
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if (has) {
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// remove the old route
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this.routes = this.routes.filter((r) => r.id !== has.id);
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}
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this.routes.push(route);
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}
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/**
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* remove route by path and key
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* @param route
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*/
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remove(route: Route | { path: string; key?: string }) {
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this.routes = this.routes.filter((r) => r.path === route.path && r.key == route.key);
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}
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/**
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* remove route by id
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* @param uniqueId
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||
*/
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removeById(unique: string) {
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this.routes = this.routes.filter((r) => r.id !== unique);
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||
}
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||
/**
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* 执行route
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* @param path
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* @param key
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* @param ctx
|
||
* @returns
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||
*/
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async runRoute(path: string, key: string, ctx?: RouteContext) {
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const route = this.routes.find((r) => r.path === path && r.key === key);
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const maxNextRoute = this.maxNextRoute;
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ctx = (ctx || {}) as RouteContext;
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ctx.currentPath = path;
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ctx.currentKey = key;
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ctx.currentRoute = route;
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ctx.index = (ctx.index || 0) + 1;
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const progress = [path, key] as [string, string];
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if (ctx.progress) {
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ctx.progress.push(progress);
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} else {
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||
ctx.progress = [progress];
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||
}
|
||
if (ctx.index > maxNextRoute) {
|
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ctx.code = 500;
|
||
ctx.message = 'Too many nextRoute';
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ctx.body = null;
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return;
|
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}
|
||
// run middleware
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||
if (route && route.middleware && route.middleware.length > 0) {
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||
const errorMiddleware: { path?: string; key?: string; id?: string }[] = [];
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||
const getMiddleware = (m: Route) => {
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||
if (!m.middleware || m.middleware.length === 0) return [];
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||
const routeMiddleware: Route[] = [];
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||
for (let i = 0; i < m.middleware.length; i++) {
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||
const item = m.middleware[i];
|
||
let route: Route | undefined;
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||
const isString = typeof item === 'string';
|
||
if (isString) {
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||
route = this.routes.find((r) => r.id === item);
|
||
} else {
|
||
route = this.routes.find((r) => r.path === item.path && r.key === item.key);
|
||
}
|
||
if (!route) {
|
||
if (isString) {
|
||
errorMiddleware.push({
|
||
id: item as string,
|
||
});
|
||
} else
|
||
errorMiddleware.push({
|
||
path: m?.path,
|
||
key: m?.key,
|
||
});
|
||
}
|
||
const routeMiddlewarePrevious = getMiddleware(route);
|
||
if (routeMiddlewarePrevious.length > 0) {
|
||
routeMiddleware.push(...routeMiddlewarePrevious);
|
||
}
|
||
routeMiddleware.push(route);
|
||
}
|
||
return routeMiddleware;
|
||
};
|
||
const routeMiddleware = getMiddleware(route);
|
||
if (errorMiddleware.length > 0) {
|
||
console.error('middleware not found');
|
||
ctx.body = errorMiddleware;
|
||
ctx.message = 'middleware not found';
|
||
ctx.code = 404;
|
||
return ctx;
|
||
}
|
||
for (let i = 0; i < routeMiddleware.length; i++) {
|
||
const middleware = routeMiddleware[i];
|
||
if (middleware) {
|
||
if (middleware?.isVerify) {
|
||
try {
|
||
middleware.verify(ctx);
|
||
} catch (e) {
|
||
if (middleware?.isDebug) {
|
||
console.error('=====debug====:', 'middleware verify error:', e.message);
|
||
}
|
||
ctx.message = e.message;
|
||
ctx.code = 500;
|
||
ctx.body = null;
|
||
return ctx;
|
||
}
|
||
}
|
||
try {
|
||
await middleware.run(ctx);
|
||
} catch (e) {
|
||
if (route?.isDebug) {
|
||
console.error('=====debug====:middlerware error');
|
||
console.error('=====debug====:', e);
|
||
console.error('=====debug====:[path:key]:', `${route.path}-${route.key}`);
|
||
console.error('=====debug====:', e.message);
|
||
}
|
||
if (e instanceof CustomError || e?.code) {
|
||
ctx.code = e.code;
|
||
ctx.message = e.message;
|
||
ctx.body = null;
|
||
} else {
|
||
console.error(`fn:${route.path}-${route.key}:${route.id}`);
|
||
console.error(`middleware:${middleware.path}-${middleware.key}:${middleware.id}`);
|
||
ctx.code = 500;
|
||
ctx.message = 'Internal Server Error';
|
||
ctx.body = null;
|
||
}
|
||
return ctx;
|
||
}
|
||
if (ctx.end) {
|
||
}
|
||
}
|
||
}
|
||
}
|
||
// run route
|
||
if (route) {
|
||
if (route.run) {
|
||
if (route?.isVerify) {
|
||
try {
|
||
route.verify(ctx);
|
||
} catch (e) {
|
||
if (route?.isDebug) {
|
||
console.error('=====debug====:', 'verify error:', e.message);
|
||
}
|
||
ctx.message = e.message;
|
||
ctx.code = 500;
|
||
ctx.body = null;
|
||
return ctx;
|
||
}
|
||
}
|
||
try {
|
||
await route.run(ctx);
|
||
} catch (e) {
|
||
if (route?.isDebug) {
|
||
console.error('=====debug====:', 'router run error:', e.message);
|
||
}
|
||
if (e instanceof CustomError) {
|
||
ctx.code = e.code;
|
||
ctx.message = e.message;
|
||
} else {
|
||
console.error(`[error]fn:${route.path}-${route.key}:${route.id}`);
|
||
console.error('error', e.message);
|
||
ctx.code = 500;
|
||
ctx.message = 'Internal Server Error';
|
||
}
|
||
ctx.body = null;
|
||
return ctx;
|
||
}
|
||
if (ctx.end) {
|
||
// TODO: 提前结束, 以及错误情况
|
||
return;
|
||
}
|
||
if (route.nextRoute) {
|
||
let path: string, key: string;
|
||
if (route.nextRoute.path || route.nextRoute.key) {
|
||
path = route.nextRoute.path;
|
||
key = route.nextRoute.key;
|
||
} else if (route.nextRoute.id) {
|
||
const nextRoute = this.routes.find((r) => r.id === route.nextRoute.id);
|
||
if (nextRoute) {
|
||
path = nextRoute.path;
|
||
key = nextRoute.key;
|
||
}
|
||
}
|
||
if (!path || !key) {
|
||
ctx.message = 'nextRoute not found';
|
||
ctx.code = 404;
|
||
ctx.body = null;
|
||
return ctx;
|
||
}
|
||
ctx.query = { ...ctx.query, ...ctx.nextQuery };
|
||
ctx.nextQuery = {};
|
||
return await this.runRoute(path, key, ctx);
|
||
}
|
||
if (!ctx.code) ctx.code = 200;
|
||
return ctx;
|
||
} else {
|
||
// return Promise.resolve({ code: 404, body: 'Not found runing' });
|
||
// 可以不需要run的route，因为不一定是错误
|
||
return ctx;
|
||
}
|
||
}
|
||
// 如果没有找到route，返回404，这是因为出现了错误
|
||
return Promise.resolve({ code: 404, body: 'Not found' });
|
||
}
|
||
/**
|
||
* 第一次执行
|
||
* @param message
|
||
* @param ctx
|
||
* @returns
|
||
*/
|
||
async parse(message: { path: string; key?: string; payload?: any }, ctx?: RouteContext & { [key: string]: any }) {
|
||
if (!message?.path) {
|
||
return Promise.resolve({ code: 404, body: null, message: 'Not found path' });
|
||
}
|
||
const { path, key = '', payload = {}, ...query } = message;
|
||
ctx = ctx || {};
|
||
ctx.query = { ...ctx.query, ...query, ...payload };
|
||
ctx.state = { ...ctx?.state };
|
||
ctx.throw = this.throw;
|
||
// put queryRouter to ctx
|
||
// TODO: 是否需要queryRouter，函数内部处理router路由执行，这应该是避免去内部去包含的功能过
|
||
ctx.queryRouter = this;
|
||
ctx.call = this.call.bind(this);
|
||
ctx.queryRoute = this.queryRoute.bind(this);
|
||
ctx.index = 0;
|
||
ctx.progress = ctx.progress || [];
|
||
const res = await this.runRoute(path, key, ctx);
|
||
const serialize = ctx.needSerialize ?? true; // 是否需要序列化
|
||
if (serialize) {
|
||
res.body = JSON.parse(JSON.stringify(res.body || ''));
|
||
}
|
||
return res;
|
||
}
|
||
/**
|
||
* 返回的数据包含所有的context的请求返回的内容，可做其他处理
|
||
* @param message
|
||
* @param ctx
|
||
* @returns
|
||
*/
|
||
async call(message: { id?: string; path?: string; key?: string; payload?: any }, ctx?: RouteContext & { [key: string]: any }) {
|
||
let path = message.path;
|
||
let key = message.key;
|
||
if (message.id) {
|
||
const route = this.routes.find((r) => r.id === message.id);
|
||
if (route) {
|
||
path = route.path;
|
||
key = route.key;
|
||
} else {
|
||
return { code: 404, body: null, message: 'Not found route' };
|
||
}
|
||
} else if (path) {
|
||
return await this.parse({ ...message, path }, { ...this.context, ...ctx });
|
||
} else {
|
||
return { code: 404, body: null, message: 'Not found path' };
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 请求 result 的数据
|
||
* @param message
|
||
* @param ctx
|
||
* @returns
|
||
*/
|
||
async queryRoute(message: { path: string; key?: string; payload?: any }, ctx?: RouteContext & { [key: string]: any }) {
|
||
const res = await this.parse(message, { ...this.context, ...ctx });
|
||
return {
|
||
code: res.code,
|
||
data: res.body,
|
||
message: res.message,
|
||
};
|
||
}
|
||
async setContext(ctx: RouteContext) {
|
||
this.context = ctx;
|
||
}
|
||
getList(): RouteInfo[] {
|
||
return this.routes.map((r) => {
|
||
return pick(r, pickValue as any);
|
||
});
|
||
}
|
||
/**
|
||
* 获取handle函数, 这里会去执行parse函数
|
||
*/
|
||
getHandle<T = any>(router: QueryRouter, wrapperFn?: HandleFn<T>, ctx?: RouteContext) {
|
||
return async (msg: { path: string; key?: string; [key: string]: any }, handleContext?: RouteContext) => {
|
||
try {
|
||
const context = { ...ctx, ...handleContext };
|
||
const res = await router.parse(msg, context);
|
||
if (wrapperFn) {
|
||
res.data = res.body;
|
||
return wrapperFn(res, context);
|
||
}
|
||
const { code, body, message } = res;
|
||
return { code, data: body, message };
|
||
} catch (e) {
|
||
return { code: 500, message: e.message };
|
||
}
|
||
};
|
||
}
|
||
exportRoutes() {
|
||
return this.routes.map((r) => {
|
||
return r;
|
||
});
|
||
}
|
||
importRoutes(routes: Route[]) {
|
||
for (let route of routes) {
|
||
this.add(route);
|
||
}
|
||
}
|
||
importRouter(router: QueryRouter) {
|
||
this.importRoutes(router.routes);
|
||
}
|
||
throw(code?: number | string, message?: string, tips?: string): void;
|
||
throw(...args: any[]) {
|
||
throw new CustomError(...args);
|
||
}
|
||
hasRoute(path: string, key?: string) {
|
||
return this.routes.find((r) => r.path === path && r.key === key);
|
||
}
|
||
}
|
||
|
||
type QueryRouterServerOpts = {
|
||
handleFn?: HandleFn;
|
||
context?: RouteContext;
|
||
};
|
||
interface HandleFn<T = any> {
|
||
(msg: { path: string; [key: string]: any }, ctx?: any): { code: string; data?: any; message?: string; [key: string]: any };
|
||
(res: RouteContext<T>): any;
|
||
}
|
||
/**
|
||
* QueryRouterServer
|
||
* @description 移除server相关的功能，只保留router相关的功能，和http.createServer不相关，独立
|
||
*/
|
||
export class QueryRouterServer extends QueryRouter {
|
||
handle: any;
|
||
constructor(opts?: QueryRouterServerOpts) {
|
||
super();
|
||
this.handle = this.getHandle(this, opts?.handleFn, opts?.context);
|
||
this.setContext({ needSerialize: false, ...opts?.context });
|
||
}
|
||
setHandle(wrapperFn?: HandleFn, ctx?: RouteContext) {
|
||
this.handle = this.getHandle(this, wrapperFn, ctx);
|
||
}
|
||
use(path: string, fn: (ctx: any) => any, opts?: RouteOpts) {
|
||
const route = new Route(path, '', opts);
|
||
route.run = fn;
|
||
this.add(route);
|
||
}
|
||
addRoute(route: Route) {
|
||
this.add(route);
|
||
}
|
||
|
||
Route = Route;
|
||
route(opts: RouteOpts): Route<Required<RouteContext>>;
|
||
route(path: string, key?: string): Route<Required<RouteContext>>;
|
||
route(path: string, opts?: RouteOpts): Route<Required<RouteContext>>;
|
||
route(path: string, key?: string, opts?: RouteOpts): Route<Required<RouteContext>>;
|
||
route(...args: any[]) {
|
||
const [path, key, opts] = args;
|
||
if (typeof path === 'object') {
|
||
return new Route(path.path, path.key, path);
|
||
}
|
||
if (typeof path === 'string') {
|
||
if (opts) {
|
||
return new Route(path, key, opts);
|
||
}
|
||
if (key && typeof key === 'object') {
|
||
return new Route(path, key?.key || '', key);
|
||
}
|
||
return new Route(path, key);
|
||
}
|
||
return new Route(path, key, opts);
|
||
}
|
||
|
||
/**
|
||
* 等于queryRoute，但是调用了handle
|
||
* @param param0
|
||
* @returns
|
||
*/
|
||
async run({ path, key, payload }: { path: string; key?: string; payload?: any }) {
|
||
const handle = this.handle;
|
||
const resultError = (error: string, code = 500) => {
|
||
const r = {
|
||
code: code,
|
||
message: error,
|
||
};
|
||
return r;
|
||
};
|
||
try {
|
||
const end = handle({ path, key, ...payload });
|
||
return end;
|
||
} catch (e) {
|
||
if (e.code && typeof e.code === 'number') {
|
||
return {
|
||
code: e.code,
|
||
message: e.message,
|
||
};
|
||
} else {
|
||
return resultError('Router Server error');
|
||
}
|
||
}
|
||
}
|
||
}
|