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Move argument defaults into setDefaults

This commit is contained in:
Asher 2020-10-15 16:17:04 -05:00
parent daf204eeda
commit dcb303a437
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4 changed files with 209 additions and 102 deletions
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135
src/node/cli.ts
View File

@ -5,7 +5,7 @@ import * as os from "os"
import * as path from "path"
import { Args as VsArgs } from "../../lib/vscode/src/vs/server/ipc"
import { AuthType } from "./http"
import { canConnect, generatePassword, humanPath, paths } from "./util"
import { canConnect, generateCertificate, generatePassword, humanPath, paths } from "./util"
export class Optional<T> {
public constructor(public readonly value?: T) {}
@ -22,33 +22,33 @@ export enum LogLevel {
export class OptionalString extends Optional<string> {}
export interface Args extends VsArgs {
readonly config?: string
readonly auth?: AuthType
readonly password?: string
readonly cert?: OptionalString
readonly "cert-key"?: string
readonly "disable-telemetry"?: boolean
readonly help?: boolean
readonly host?: string
readonly json?: boolean
config?: string
auth?: AuthType
password?: string
cert?: OptionalString
"cert-key"?: string
"disable-telemetry"?: boolean
help?: boolean
host?: string
json?: boolean
log?: LogLevel
readonly open?: boolean
readonly port?: number
readonly "bind-addr"?: string
readonly socket?: string
readonly version?: boolean
readonly force?: boolean
readonly "list-extensions"?: boolean
readonly "install-extension"?: string[]
readonly "show-versions"?: boolean
readonly "uninstall-extension"?: string[]
readonly "proxy-domain"?: string[]
readonly locale?: string
readonly _: string[]
readonly "reuse-window"?: boolean
readonly "new-window"?: boolean
open?: boolean
port?: number
"bind-addr"?: string
socket?: string
version?: boolean
force?: boolean
"list-extensions"?: boolean
"install-extension"?: string[]
"show-versions"?: boolean
"uninstall-extension"?: string[]
"proxy-domain"?: string[]
locale?: string
_: string[]
"reuse-window"?: boolean
"new-window"?: boolean
readonly link?: OptionalString
link?: OptionalString
}
interface Option<T> {
@ -325,13 +325,37 @@ export const parse = (
args._.push(arg)
}
// If a cert was provided a key must also be provided.
if (args.cert && args.cert.value && !args["cert-key"]) {
throw new Error("--cert-key is missing")
}
logger.debug("parsed command line", field("args", args))
return args
}
export async function setDefaults(args: Args): Promise<Args> {
args = { ...args }
export interface DefaultedArgs extends ConfigArgs {
auth: AuthType
cert?: {
value: string
}
host: string
port: number
"proxy-domain": string[]
verbose: boolean
usingEnvPassword: boolean
"extensions-dir": string
"user-data-dir": string
}
/**
* Take CLI and config arguments (optional) and return a single set of arguments
* with the defaults set. Arguments from the CLI are prioritized over config
* arguments.
*/
export async function setDefaults(cliArgs: Args, configArgs?: ConfigArgs): Promise<DefaultedArgs> {
const args = Object.assign({}, configArgs || {}, cliArgs)
if (!args["user-data-dir"]) {
await copyOldMacOSDataDir()
@ -381,7 +405,52 @@ export async function setDefaults(args: Args): Promise<Args> {
break
}
return args
// Default to using a password.
if (!args.auth) {
args.auth = AuthType.Password
}
const [host, port] = bindAddrFromAllSources(args, configArgs || { _: [] })
args.host = host
args.port = port
// If we're being exposed to the cloud, we listen on a random address and
// disable auth.
if (args.link) {
args.host = "localhost"
args.port = 0
args.socket = undefined
args.cert = undefined
if (args.auth !== AuthType.None) {
args.auth = AuthType.None
}
}
if (args.cert && !args.cert.value) {
const { cert, certKey } = await generateCertificate()
args.cert = {
value: cert,
}
args["cert-key"] = certKey
}
const usingEnvPassword = !!process.env.PASSWORD
if (process.env.PASSWORD) {
args.password = process.env.PASSWORD
}
// Ensure it's not readable by child processes.
delete process.env.PASSWORD
// Filter duplicate proxy domains and remove any leading `*.`.
const proxyDomains = new Set((args["proxy-domain"] || []).map((d) => d.replace(/^\*\./, "")))
args["proxy-domain"] = Array.from(proxyDomains)
return {
...args,
usingEnvPassword,
} as DefaultedArgs // TODO: Technically no guarantee this is fulfilled.
}
async function defaultConfigFile(): Promise<string> {
@ -392,12 +461,16 @@ cert: false
`
}
interface ConfigArgs extends Args {
config: string
}
/**
* Reads the code-server yaml config file and returns it as Args.
*
* @param configPath Read the config from configPath instead of $CODE_SERVER_CONFIG or the default.
*/
export async function readConfigFile(configPath?: string): Promise<Args> {
export async function readConfigFile(configPath?: string): Promise<ConfigArgs> {
if (!configPath) {
configPath = process.env.CODE_SERVER_CONFIG
if (!configPath) {
@ -466,7 +539,7 @@ function bindAddrFromArgs(addr: Addr, args: Args): Addr {
return addr
}
export function bindAddrFromAllSources(cliArgs: Args, configArgs: Args): [string, number] {
function bindAddrFromAllSources(cliArgs: Args, configArgs: Args): [string, number] {
let addr: Addr = {
host: "localhost",
port: 8080,

91
src/node/entry.ts
View File

@ -12,8 +12,7 @@ import { StaticHttpProvider } from "./app/static"
import { UpdateHttpProvider } from "./app/update"
import { VscodeHttpProvider } from "./app/vscode"
import {
Args,
bindAddrFromAllSources,
DefaultedArgs,
optionDescriptions,
parse,
readConfigFile,
@ -24,7 +23,7 @@ import {
import { coderCloudBind } from "./coder-cloud"
import { AuthType, HttpServer, HttpServerOptions } from "./http"
import { loadPlugins } from "./plugin"
import { generateCertificate, hash, humanPath, open } from "./util"
import { hash, humanPath, open } from "./util"
import { ipcMain, WrapperProcess } from "./wrapper"
let pkg: { version?: string; commit?: string } = {}
@ -37,7 +36,7 @@ try {
const version = pkg.version || "development"
const commit = pkg.commit || "development"
export const runVsCodeCli = (args: Args): void => {
export const runVsCodeCli = (args: DefaultedArgs): void => {
logger.debug("forking vs code cli...")
const vscode = cp.fork(path.resolve(__dirname, "../../lib/vscode/out/vs/server/fork"), [], {
env: {
@ -61,7 +60,7 @@ export const runVsCodeCli = (args: Args): void => {
vscode.on("exit", (code) => process.exit(code || 0))
}
export const openInExistingInstance = async (args: Args, socketPath: string): Promise<void> => {
export const openInExistingInstance = async (args: DefaultedArgs, socketPath: string): Promise<void> => {
const pipeArgs: OpenCommandPipeArgs & { fileURIs: string[] } = {
type: "open",
folderURIs: [],
@ -117,54 +116,26 @@ export const openInExistingInstance = async (args: Args, socketPath: string): Pr
vscode.end()
}
const main = async (args: Args, configArgs: Args): Promise<void> => {
if (args.link) {
// If we're being exposed to the cloud, we listen on a random address and disable auth.
args = {
...args,
host: "localhost",
port: 0,
auth: AuthType.None,
socket: undefined,
cert: undefined,
}
logger.info("link: disabling auth and listening on random localhost port for cloud agent")
}
if (!args.auth) {
args = {
...args,
auth: AuthType.Password,
}
}
const main = async (args: DefaultedArgs): Promise<void> => {
logger.info(`Using user-data-dir ${humanPath(args["user-data-dir"])}`)
logger.trace(`Using extensions-dir ${humanPath(args["extensions-dir"])}`)
const envPassword = !!process.env.PASSWORD
const password = args.auth === AuthType.Password && (process.env.PASSWORD || args.password)
if (args.auth === AuthType.Password && !password) {
if (args.auth === AuthType.Password && !args.password) {
throw new Error("Please pass in a password via the config file or $PASSWORD")
}
const [host, port] = bindAddrFromAllSources(args, configArgs)
// Spawn the main HTTP server.
const options: HttpServerOptions = {
auth: args.auth,
commit,
host: host,
host: args.host,
// The hash does not add any actual security but we do it for obfuscation purposes.
password: password ? hash(password) : undefined,
port: port,
password: args.password ? hash(args.password) : undefined,
port: args.port,
proxyDomains: args["proxy-domain"],
socket: args.socket,
...(args.cert && !args.cert.value
? await generateCertificate()
: {
cert: args.cert && args.cert.value,
certKey: args["cert-key"],
}),
cert: args.cert && args.cert.value,
certKey: args["cert-key"],
}
if (options.cert && !options.certKey) {
@ -175,7 +146,7 @@ const main = async (args: Args, configArgs: Args): Promise<void> => {
httpServer.registerHttpProvider(["/", "/vscode"], VscodeHttpProvider, args)
httpServer.registerHttpProvider("/update", UpdateHttpProvider, false)
httpServer.registerHttpProvider("/proxy", ProxyHttpProvider)
httpServer.registerHttpProvider("/login", LoginHttpProvider, args.config!, envPassword)
httpServer.registerHttpProvider("/login", LoginHttpProvider, args.config!, args.usingEnvPassword)
httpServer.registerHttpProvider("/static", StaticHttpProvider)
httpServer.registerHttpProvider("/healthz", HealthHttpProvider, httpServer.heart)
@ -191,19 +162,18 @@ const main = async (args: Args, configArgs: Args): Promise<void> => {
logger.info(`Using config file ${humanPath(args.config)}`)
const serverAddress = await httpServer.listen()
logger.info(`HTTP server listening on ${serverAddress}`)
logger.info(`HTTP server listening on ${serverAddress} ${args.link ? "(randomized by --link)" : ""}`)
if (args.auth === AuthType.Password) {
if (envPassword) {
if (args.usingEnvPassword) {
logger.info(" - Using password from $PASSWORD")
} else {
logger.info(` - Using password from ${humanPath(args.config)}`)
}
logger.info(" - To disable use `--auth none`")
} else {
logger.info(" - No authentication")
logger.info(` - No authentication ${args.link ? "(disabled by --link)" : ""}`)
}
delete process.env.PASSWORD
if (httpServer.protocol === "https") {
logger.info(
@ -215,9 +185,19 @@ const main = async (args: Args, configArgs: Args): Promise<void> => {
logger.info(" - Not serving HTTPS")
}
if (httpServer.proxyDomains.size > 0) {
logger.info(` - ${plural(httpServer.proxyDomains.size, "Proxying the following domain")}:`)
httpServer.proxyDomains.forEach((domain) => logger.info(` - *.${domain}`))
if (args["proxy-domain"].length > 0) {
logger.info(` - ${plural(args["proxy-domain"].length, "Proxying the following domain")}:`)
args["proxy-domain"].forEach((domain) => logger.info(` - *.${domain}`))
}
if (args.link) {
try {
await coderCloudBind(serverAddress!, args.link.value)
logger.info(" - Connected to cloud agent")
} catch (err) {
logger.error(err.message)
ipcMain.exit(1)
}
}
if (serverAddress && !options.socket && args.open) {
@ -228,23 +208,12 @@ const main = async (args: Args, configArgs: Args): Promise<void> => {
})
logger.info(`Opened ${openAddress}`)
}
if (args.link) {
try {
await coderCloudBind(serverAddress!, args.link.value)
} catch (err) {
logger.error(err.message)
ipcMain.exit(1)
}
}
}
async function entry(): Promise<void> {
const cliArgs = parse(process.argv.slice(2))
const configArgs = await readConfigFile(cliArgs.config)
// This prioritizes the flags set in args over the ones in the config file.
let args = Object.assign(configArgs, cliArgs)
args = await setDefaults(args)
const args = await setDefaults(cliArgs, configArgs)
// There's no need to check flags like --help or to spawn in an existing
// instance for the child process because these would have already happened in
@ -252,7 +221,7 @@ async function entry(): Promise<void> {
if (ipcMain.isChild) {
await ipcMain.handshake()
ipcMain.preventExit()
return main(args, configArgs)
return main(args)
}
if (args.help) {

12
src/node/http.ts
View File

@ -130,7 +130,7 @@ export interface HttpServerOptions {
readonly host?: string
readonly password?: string
readonly port?: number
readonly proxyDomains?: string[]
readonly proxyDomains: string[]
readonly socket?: string
}
@ -463,18 +463,12 @@ export class HttpServer {
public readonly heart: Heart
private readonly socketProvider = new SocketProxyProvider()
/**
* Proxy domains are stored here without the leading `*.`
*/
public readonly proxyDomains: Set<string>
/**
* Provides the actual proxying functionality.
*/
private readonly proxy = proxy.createProxyServer({})
public constructor(private readonly options: HttpServerOptions) {
this.proxyDomains = new Set((options.proxyDomains || []).map((d) => d.replace(/^\*\./, "")))
this.heart = new Heart(path.join(paths.data, "heartbeat"), async () => {
const connections = await this.getConnections()
logger.trace(plural(connections, `${connections} active connection`))
@ -892,7 +886,7 @@ export class HttpServer {
return undefined
}
this.proxyDomains.forEach((domain) => {
this.options.proxyDomains.forEach((domain) => {
if (host.endsWith(domain) && domain.length < host.length) {
host = domain
}
@ -922,7 +916,7 @@ export class HttpServer {
// There must be an exact match.
const port = parts.shift()
const proxyDomain = parts.join(".")
if (!port || !this.proxyDomains.has(proxyDomain)) {
if (!port || !this.options.proxyDomains.includes(proxyDomain)) {
return undefined
}

73
test/cli.test.ts
View File

@ -14,17 +14,23 @@ type Mutable<T> = {
describe("parser", () => {
beforeEach(() => {
delete process.env.LOG_LEVEL
delete process.env.PASSWORD
})
// The parser should not set any defaults so the caller can determine what
// values the user actually set. These are only set after explicitly calling
// `setDefaults`.
const defaults = {
auth: "password",
host: "localhost",
port: 8080,
"proxy-domain": [],
usingEnvPassword: false,
"extensions-dir": path.join(paths.data, "extensions"),
"user-data-dir": paths.data,
}
it("should set defaults", () => {
it("should parse nothing", () => {
assert.deepEqual(parse([]), { _: [] })
})
@ -232,6 +238,71 @@ describe("parser", () => {
"proxy-domain": ["*.coder.com", "test.com"],
})
})
it("should enforce cert-key with cert value or otherwise generate one", async () => {
const args = parse(["--cert"])
assert.deepEqual(args, {
_: [],
cert: {
value: undefined,
},
})
assert.throws(() => parse(["--cert", "test"]), /--cert-key is missing/)
assert.deepEqual(await setDefaults(args), {
_: [],
...defaults,
cert: {
value: path.join(tmpdir, "self-signed.cert"),
},
"cert-key": path.join(tmpdir, "self-signed.key"),
})
})
it("should override with --link", async () => {
const args = parse("--cert test --cert-key test --socket test --host 0.0.0.0 --port 8888 --link test".split(" "))
assert.deepEqual(await setDefaults(args), {
_: [],
...defaults,
auth: "none",
host: "localhost",
link: {
value: "test",
},
port: 0,
cert: undefined,
"cert-key": path.resolve("test"),
socket: undefined,
})
})
it("should use env var password", async () => {
process.env.PASSWORD = "test"
const args = parse([])
assert.deepEqual(args, {
_: [],
})
assert.deepEqual(await setDefaults(args), {
...defaults,
_: [],
password: "test",
usingEnvPassword: true,
})
})
it("should filter proxy domains", async () => {
const args = parse(["--proxy-domain", "*.coder.com", "--proxy-domain", "coder.com", "--proxy-domain", "coder.org"])
assert.deepEqual(args, {
_: [],
"proxy-domain": ["*.coder.com", "coder.com", "coder.org"],
})
assert.deepEqual(await setDefaults(args), {
...defaults,
_: [],
"proxy-domain": ["coder.com", "coder.org"],
})
})
})
describe("cli", () => {