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125 lines
4.7 KiB
TypeScript
125 lines
4.7 KiB
TypeScript
import { field, logger } from "@coder/logger"
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import * as assert from "assert"
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import * as fs from "fs-extra"
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import "leaked-handles"
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import * as net from "net"
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import * as path from "path"
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import * as tls from "tls"
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import { Emitter } from "../src/common/emitter"
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import { SocketProxyProvider } from "../src/node/socket"
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import { generateCertificate, tmpdir } from "../src/node/util"
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describe("SocketProxyProvider", () => {
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const provider = new SocketProxyProvider()
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const onServerError = new Emitter<{ event: string; error: Error }>()
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const onClientError = new Emitter<{ event: string; error: Error }>()
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const onProxyError = new Emitter<{ event: string; error: Error }>()
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const fromServerToClient = new Emitter<string>()
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const fromClientToServer = new Emitter<string>()
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const fromClientToProxy = new Emitter<Buffer>()
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let errors = 0
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let close = false
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const onError = ({ event, error }: { event: string; error: Error }): void => {
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if (!close || event === "error") {
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logger.error(event, field("error", error.message))
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++errors
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}
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}
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onServerError.event(onError)
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onClientError.event(onError)
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onProxyError.event(onError)
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let server: tls.TLSSocket
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let proxy: net.Socket
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let client: tls.TLSSocket
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const getData = <T>(emitter: Emitter<T>): Promise<T> => {
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return new Promise((resolve) => {
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const d = emitter.event((t) => {
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d.dispose()
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resolve(t)
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})
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})
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}
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before(async () => {
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const cert = await generateCertificate()
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const options = {
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cert: fs.readFileSync(cert.cert),
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key: fs.readFileSync(cert.certKey),
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rejectUnauthorized: false,
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}
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await fs.mkdirp(path.join(tmpdir, "tests"))
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const socketPath = await provider.findFreeSocketPath(path.join(tmpdir, "tests/tls-socket-proxy"))
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await fs.remove(socketPath)
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return new Promise((_resolve) => {
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const resolved: { [key: string]: boolean } = { client: false, server: false }
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const resolve = (type: "client" | "server"): void => {
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resolved[type] = true
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if (resolved.client && resolved.server) {
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// We don't need any more connections.
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main.close() // eslint-disable-line @typescript-eslint/no-use-before-define
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_resolve()
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}
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}
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const main = tls
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.createServer(options, (s) => {
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server = s
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server
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.on("data", (d) => fromClientToServer.emit(d))
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.on("error", (error) => onServerError.emit({ event: "error", error }))
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.on("end", () => onServerError.emit({ event: "end", error: new Error("unexpected end") }))
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.on("close", () => onServerError.emit({ event: "close", error: new Error("unexpected close") }))
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resolve("server")
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})
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.on("error", (error) => onServerError.emit({ event: "error", error }))
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.on("end", () => onServerError.emit({ event: "end", error: new Error("unexpected end") }))
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.on("close", () => onServerError.emit({ event: "close", error: new Error("unexpected close") }))
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.listen(socketPath, () => {
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client = tls
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.connect({ ...options, path: socketPath })
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.on("data", (d) => fromServerToClient.emit(d))
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.on("error", (error) => onClientError.emit({ event: "error", error }))
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.on("end", () => onClientError.emit({ event: "end", error: new Error("unexpected end") }))
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.on("close", () => onClientError.emit({ event: "close", error: new Error("unexpected close") }))
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.once("connect", () => resolve("client"))
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})
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})
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})
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it("should work without a proxy", async () => {
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server.write("server->client")
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assert.equal(await getData(fromServerToClient), "server->client")
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client.write("client->server")
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assert.equal(await getData(fromClientToServer), "client->server")
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assert.equal(errors, 0)
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})
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it("should work with a proxy", async () => {
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assert.equal(server instanceof tls.TLSSocket, true)
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proxy = (await provider.createProxy(server))
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.on("data", (d) => fromClientToProxy.emit(d))
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.on("error", (error) => onProxyError.emit({ event: "error", error }))
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.on("end", () => onProxyError.emit({ event: "end", error: new Error("unexpected end") }))
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.on("close", () => onProxyError.emit({ event: "close", error: new Error("unexpected close") }))
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provider.stop() // We don't need more proxies.
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proxy.write("server proxy->client")
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assert.equal(await getData(fromServerToClient), "server proxy->client")
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client.write("client->server proxy")
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assert.equal(await getData(fromClientToProxy), "client->server proxy")
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assert.equal(errors, 0)
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})
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it("should close", async () => {
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close = true
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client.end()
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proxy.end()
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})
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})
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