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Fasterino
2024-11-15 02:24:51 +03:00
commit 93e89b0d7f
13 changed files with 1511 additions and 0 deletions
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3
.dockerignore Normal file
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vol
node_modules
dist

3
.gitignore vendored Normal file
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vol
node_modules
dist

10
Dockerfile Normal file
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FROM node:21-alpine
RUN mkdir /app
WORKDIR /app
COPY . .
RUN mkdir dist
RUN npm install
VOLUME /app/vol
CMD npm run start

23
docker-compose.yml Normal file
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version: '3.8'
services:
main:
build: .
restart: always
environment:
HTTP_PORT: 52080
HTTPS_PORT: 52443 # comment this if https is not required
# VOLUME_PATH: '/app/vol' # Not required because its '/app/vol' by default
CERTS_PATH: /etc/letsencrypt/live/ # Will be ignored because LOAD_CERTS_FROM_VOLUME is 1
LOAD_CERTS_FROM_VOLUME: 1 # CERTS_PATH will be inherited from VOLUME_PATH
networks:
- your_network # choose network with your containers
volumes:
- ../volumes/proxy:/app/vol
ports:
- 52080:52080
- 52443:52443
networks:
# choose network with your containers
your_network:
external: true

877
package-lock.json generated Normal file
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}

21
package.json Normal file
View File

@@ -0,0 +1,21 @@
{
"name": "proxy",
"version": "1.0.0",
"description": "",
"main": "dist/index.js",
"scripts": {
"start": "tsc && node dist/index.js"
},
"author": "",
"license": "ISC",
"dependencies": {
"@types/http-proxy": "^1.17.13",
"cors": "^2.8.5",
"express": "^4.18.2",
"http-proxy": "^1.18.1"
},
"devDependencies": {
"@types/express": "^4.17.20",
"typescript": "^5.2.2"
}
}

284
src/config.ts Normal file
View File

@@ -0,0 +1,284 @@
import { readFile, writeFile } from "fs/promises"
import { join, resolve } from 'path'
interface Dict<T> {
[key: string]: T
}
type Cors = string[] | '*'
type Nullable<T> = T | null
type DomainCertName = string
export const CERT_NAME = 'cert-name'
export class Config implements IConfig {
volumePath: string
domains: Dict<ConfigAtDomain>
constructor(cfg: IConfig, volumePath: string) {
this.volumePath = volumePath
for (const key of Object.keys(cfg))
this[key] = cfg[key]
}
static getDefault(): IConfig {
return {
domains: {
"test.com": {
[CERT_NAME]: "test.com",
"/": {
domain: "web-docker-container",
port: 8080
},
"/api/": {
domain: "api-docker-container",
port: 8081,
cors: ["test.com"],
relative: true
},
},
"mirror.test.com": {
[CERT_NAME]: "test.com",
"/": {
domain: "test.cc",
https: true,
cors: '*',
rewriteDomain: true
}
},
"static.test.com": {
[CERT_NAME]: "test.com",
"/": {
folder: "volFolder",
cors: '*'
},
"/extra/": {
folder: "extraVolFolder",
cors: ['test.com', 'test.cc'],
relative: true
}
}
}
}
}
static async save(cfg: IConfig, volumePath: string) {
await writeFile(Config.configPath(volumePath), JSON.stringify(cfg, undefined, 2))
return cfg
}
static async load(volumePath: string) {
return new Config(
await readFile(Config.configPath(volumePath), 'utf8')
.then(
res => JSON.parse(res) as IConfig,
async err => await Config.save(Config.getDefault(), volumePath)
),
volumePath
)
}
static isStatic(atPath: ConfigAtPathRaw): atPath is ConfigAtPathStatic {
return "folder" in atPath
}
private static configPath(volumePath: string) { return join(resolve(volumePath), 'config.json') }
private static fixPath(path: string) { return (path.startsWith('/') ? '' : '/') + path + (!path.length || path.endsWith('/') ? '' : '/') }
private static splitPath(path: string) {
const fixedPath = Config.fixPath(path)
return fixedPath.length < 2 ? [] : fixedPath.substring(1, fixedPath.length - 1).split('/')
}
repr(): IConfig {
return {
domains: this.domains,
}
}
getCerts(): Dict<Nullable<DomainCertName>> {
return Object.fromEntries(
Object.entries(this.domains)
.map(([key, val]) =>
[
key,
typeof val[CERT_NAME] == 'string' ? val[CERT_NAME] : null
])
)
}
getProxyData(domain: string, path: string): Nullable<ConfigAtPath> {
const atDomain = this.domains[domain]
if (!atDomain)
return null
const [atPath, exclude] = this.getConfigFromDomain(atDomain, path)
if (!atPath)
return null
if (Config.isStatic(atPath))
return {
exclude,
folder: atPath.folder,
cors: atPath.cors || [domain],
relative: atPath.relative
}
return {
exclude,
domain: atPath.domain,
port: atPath.port || 0,
headers: atPath.headers || {},
https: atPath.https,
cors: atPath.cors || [domain],
rewriteDomain: atPath.rewriteDomain,
relative: atPath.relative
}
}
private getConfigFromDomain(atDomain: ConfigAtDomain, _path: string): [Nullable<ConfigAtPathRaw>, number] {
const path = Config.splitPath(_path)
const atPaths = this.getPaths(atDomain)
for (const [key, atPath] of atPaths)
if (this.comparePaths(path, key))
return [atPath, atPath.relative ? Config.fixPath(key.join('/')).length : 1]
return [null, 0]
}
private comparePaths(reqPath: string[], cfgPath: string[]) {
if (reqPath.length < cfgPath.length)
return false
for (let i = 0; i < cfgPath.length; i++)
if (reqPath[i] != cfgPath[i])
return false
return true
}
private getPaths(atDomain: ConfigAtDomain) {
return Object.entries(atDomain)
.filter(([key, val]) =>
(key != CERT_NAME) && (typeof val != 'string'))
.map(([key, val]) =>
[Config.splitPath(key), val] as [string[], ConfigAtPathRaw])
.sort(([a], [b]) =>
b.length - a.length)
}
async save() {
await Config.save(this.repr(), this.volumePath)
}
}
export type ConfigAtPath = Required<ConfigAtPathRaw> & ConfigAtPathCommon
export type ConfigAtPathRaw = ConfigAtPathDynamic | ConfigAtPathStatic
export interface ConfigAtPathCommon {
/**
* Auto calculated field
*/
exclude: number
}
export interface ConfigAtPathStatic {
/**
* Will redirect request to local file from this **folder**
*
* **Note:** this folder must be in volume folder
*/
folder: string
/**
* Allowed origins
*
* Use **"*"** to disable cors
*
* **Default:** [req.hostname]
*/
cors?: Cors
/**
* Remove path from request path
*
* **Example:** ({"test.com": "/api/": {"folder": "volFolder"}})
* * *true* - Get **http://test.com/api/test** => Get **./volume/volFolder/test**
* * *false* - Get **http://test.com/api/test** => Get **./volume/volFolder/volFolder/test**
*
* **Default:** false
*/
relative?: boolean
}
export interface ConfigAtPathDynamic {
/**
* Will redirect request to http server with this **domain** or **ip**
*/
domain: string
/**
* Will redirect request to http server with this **port**
*
* **Default:**
* * *for http* - 80
* * *for https* - 443
*/
port?: number
/**
* Will redirect request to http server with this **headers**
*
* **Default:** {}
*/
headers?: { [key: string]: string }
/**
* Use https protocol instead of http when redirecting
*
* **Default:** false
*/
https?: boolean
/**
* Allowed origins
*
* Use **"*"** to disable cors
*
* **Default:** [req.hostname]
*/
cors?: Cors
/**
* Use domain (or ip) of http server instead of requested domain
*
* **Example:**
* * *true* - Get **req.hostname** => Get **config.domain** with header Host=**config.domain**
* * *false* - Get **req.hostname** => Get **config.domain** with header Host=**req.hostname**
*
* **Default:** false
*/
rewriteDomain?: boolean
/**
* Remove path from request path
*
* **Example:** ({"test.com": "/api/": {"domain": "localhost"}})
* * *true* - Get **http://test.com/api/test** => Get **http:/localhost/test**
* * *false* - Get **http://test.com/api/test** => Get **http:/localhost/api/test**
*
* **Default:** false
*/
relative?: boolean
}
export interface ConfigAtDomain extends Dict<ConfigAtPathRaw | DomainCertName> { }
export interface IConfig {
domains: Dict<ConfigAtDomain>
}

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import fs from 'fs';
export interface Config {
default?: ConfigProxyPaths
hosts: {
[domain: string]: ConfigProxyPaths
},
certs: ConfigCerts
}
export interface ConfigCerts {
[folder: string]: {
domain: string
allowSubdomains: boolean
}
}
export interface ConfigProxyPaths {
[path: string]: ConfigProxy | ConfigProxyStatic
}
type Cors = string[] | '*'
export interface ConfigProxy {
domain: string
port?: number
headers?: { [key: string]: string }
https?: boolean
cors?: Cors
useNativeDomain?: boolean
relative?: boolean
}
export interface ConfigProxyStatic {
static: string
cors?: Cors
}
export default function getConfig(path: string): Config {
return JSON.parse(
fs.readFileSync(path, 'utf8')
)
}

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import 'process'
interface EnvFunc {
(def: number): number
(def: string): string
}
type EnvFuncGeneric = (def: string | number) => string | number
interface Env {
readonly [key: string]: EnvFunc
}
export const env: Env = new Proxy<Env>({}, {
get(_, prop: string, cast): EnvFuncGeneric {
return def => {
const val: string = process.env[prop]
if (!val) return def
switch (typeof def) {
case 'number':
return Number.isNaN(val) ? def : Number(val)
default:
return val
}
}
}
});

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import { RequestListener } from "http";
import https from "https";
import tls from "tls";
import fs from "fs";
import { Config } from "./config";
import { join } from "path";
export function getHttps(cfg: Config, letsencryptPath: string) {
const secureContexts = getSecureContexts(cfg, letsencryptPath)
const options: https.ServerOptions = {
// A function that will be called if the client supports SNI TLS extension.
SNICallback: (domain, cb) => {
const ctx = secureContexts[domain];
if (cb) {
ctx ? cb(null, ctx) : cb(Error("No ctx"));
} else if (ctx) {
return ctx;
}
},
};
return (app: RequestListener) => https.createServer(options, app);
}
function getSecureContexts(config: Config, letsencryptPath: string) {
return Object.fromEntries(
Object.entries(config.getCerts())
.filter(([_, value]) => value)
.map(([key, value]) =>
[key, tls.createSecureContext({
key: fs.readFileSync(join(letsencryptPath, value, "/privkey1.pem")),
cert: fs.readFileSync(join(letsencryptPath, value, "/fullchain1.pem")),
ca: null,
})])
)
}

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import { getHttps } from "./https";
import { createServer as httpServer } from 'http'
import { Config } from "./config";
import getProxy from "./proxy";
import { env } from "./env";
const HTTP_PORT = env.HTTP_PORT(52080),
HTTPS_PORT = env.HTTPS_PORT(-1),
VOLUME_PATH = env.VOLUME_PATH('./vol'),
CERTS_PATH = env.LOAD_CERTS_FROM_VOLUME(0) ? VOLUME_PATH : env.CERTS_PATH('/etc/letsencrypt/live/')
console.log("ENV Loaded:", {
HTTP_PORT,
HTTPS_PORT: HTTPS_PORT + (HTTPS_PORT == -1 ? ' (WITHOUT HTTPS)' : ''),
VOLUME_PATH,
CERTS_PATH: CERTS_PATH + (env.LOAD_CERTS_FROM_VOLUME(0) ? ' (Loaded from VOLUME_PATH)' : ''),
})
async function main() {
const config = await Config.load(VOLUME_PATH),
{ app, upgrade } = getProxy(config)
httpServer(app).on('upgrade', upgrade).listen(HTTP_PORT, function () {
console.log("Listening http on port: " + HTTP_PORT)
});
if (HTTPS_PORT != -1) {
const httpsServer = await getHttps(config, CERTS_PATH)
httpsServer(app).on('upgrade', upgrade).listen(HTTPS_PORT, function () {
console.log("Listening https on port: " + HTTPS_PORT)
})
}
}
main()

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import express, { Request, Response } from "express";
import { Duplex } from "node:stream"
import { IncomingMessage } from 'http';
import httpProxy from 'http-proxy';
import cors from 'cors';
import { resolve, join } from 'path';
import { lstat } from 'fs';
import { Config, ConfigAtPath } from "./config";
export default function getProxy(cfg: Config) {
const volumePath = resolve(cfg.volumePath),
app = express(),
proxy = httpProxy.createProxyServer(),
corsOptionsDelegate = function (req: Request, callback: (a: any, b: { origin: boolean }) => null) {
const proxyData = getProxyData(req),
_origin = (req.header('Origin') || req.header('Referer') || 'None').split('//'),
origin = _origin[_origin.length - 1].split('/')[0].split(':')[0]
let answer = false
if (proxyData)
if (proxyData.cors == '*')
answer = true
else
for (const domain of proxyData.cors)
if (origin.endsWith(domain)) {
answer = true
break
}
if (req.res)
req.res.locals.cors = answer
callback(null, { origin: answer });
};
function prettyLog(data: any) {
console.log(JSON.stringify(data, undefined, 2))
}
function handleRequest(proxyData: ConfigAtPath, req: Request, res: Response) {
const log: { [key: string]: any } = {
'IN_HOST': req.hostname,
'IN_PATH': req.path,
'IN_QUERY': req.query,
'IN_HEADERS': req.headers,
'CORS_ALLOWED': !!res.locals.cors
}
if (Config.isStatic(proxyData)) {
log.PROXY_TYPE = 'STATIC'
const path = join(volumePath, proxyData.folder, '/' + req.path.substring(proxyData.exclude));
log.FILE_PATH = path
lstat(path, (err, stat) => {
if (err || !stat.isFile()) {
log.FILE_FOUND = false
prettyLog(log)
res.status(404).send('<h1>File not exist</h1>')
return;
}
log.FILE_FOUND = false
prettyLog(log)
res.sendFile(path)
})
return;
}
const domain = req.headers.host = proxyData.rewriteDomain ? proxyData.domain : req.hostname
const headers = req.headers = { ...proxyData.headers, ...req.headers }
const target = (proxyData.https ? 'https://' : 'http://') + proxyData.domain + (proxyData.port ? ':' + proxyData.port : '')
req.url = '/' + req.url.substring(proxyData.exclude)
log.PROXY_TYPE = 'DYNAMIC'
log.REDIRECTED_TO = target
log.OUT_HOST = domain
log.OUT_PATH = req.path
log.OUT_HEADERS = headers
prettyLog(log)
proxy.web(req, res, {
target,
hostRewrite: domain
}, () => res.status(503).send('Service unavailable'))
}
function getProxyData(req: { hostname: string, path: string }): ConfigAtPath {
return cfg.getProxyData(req.hostname, req.path)
}
app.use(cors(corsOptionsDelegate))
app.use((req, res) => {
const proxyData = getProxyData(req);
if (proxyData)
return handleRequest(proxyData, req, res)
prettyLog({
'IN_HOST': req.hostname,
'IN_PATH': req.path,
'IN_QUERY': req.query,
'IN_HEADERS': req.headers,
'PROXY_TYPE': 'NOT_FOUND'
})
res.status(404).send('Not found')
})
return {
app,
upgrade: (req: IncomingMessage, socket: Duplex, head: Buffer) => {
const { hostname, pathname: path } = new URL(req.url, `http://${req.headers.host}`);
const proxyData = getProxyData({
hostname,
path
})
if (proxyData && !Config.isStatic(proxyData))
proxy.ws(req, socket, head, {
ws: true,
target: 'ws://' + proxyData.domain + (proxyData.port ? ':' + proxyData.port : ''),
hostRewrite: proxyData.rewriteDomain ? proxyData.domain : hostname
}, () => null)
}
}
}

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tsconfig.json Normal file
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{
"compilerOptions": {
"module": "commonjs",
"resolveJsonModule": true,
"esModuleInterop": true,
"target": "es6",
"moduleResolution": "node",
"sourceMap": false,
"outDir": "dist"
},
"lib": [
"es2015"
]
}