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code-server/test/unit/node/update.test.ts

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import { logger } from "@coder/logger"
import * as http from "http"
import { AddressInfo } from "net"
import * as path from "path"
import { SettingsProvider, UpdateSettings } from "../../../src/node/settings"
import { LatestResponse, UpdateProvider } from "../../../src/node/update"
import { clean, isAddressInfo, mockLogger, tmpdir } from "../../utils/helpers"
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describe("update", () => {
let version = "1.0.0"
let spy: string[] = []
const server = http.createServer((request: http.IncomingMessage, response: http.ServerResponse) => {
if (!request.url) {
throw new Error("no url")
}
spy.push(request.url)
// Return the latest version.
if (request.url === "/latest") {
const latest: LatestResponse = {
name: version,
}
response.writeHead(200)
return response.end(JSON.stringify(latest))
}
if (request.url === "/reject-status-code") {
response.writeHead(500)
return response.end("rejected status code test")
}
if (request.url === "/no-location-header") {
response.writeHead(301, "testing", {
location: "",
})
return response.end("rejected status code test")
}
if (request.url === "/with-location-header") {
response.writeHead(301, "testing", {
location: "/latest",
})
return response.end()
}
// Checks if url matches /redirect/${number}
// with optional trailing slash
const match = request.url.match(/\/redirect\/([0-9]+)\/?$/)
if (match) {
if (request.url === "/redirect/0") {
response.writeHead(200)
return response.end("done")
}
// Subtract 1 from the current redirect number
// i.e. /redirect/10 -> /redirect/9 -> /redirect/8
const currentRedirectNumber = parseInt(match[1])
const newRedirectNumber = currentRedirectNumber - 1
response.writeHead(302, "testing", {
location: `/redirect/${String(newRedirectNumber)}`,
})
return response.end("")
}
// Anything else is a 404.
response.writeHead(404)
response.end("not found")
})
let _settings: SettingsProvider<UpdateSettings> | undefined
const settings = (): SettingsProvider<UpdateSettings> => {
if (!_settings) {
throw new Error("Settings provider has not been created")
}
return _settings
}
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let _provider: UpdateProvider | undefined
let _address: string | AddressInfo | null
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const provider = (): UpdateProvider => {
if (!_provider) {
throw new Error("Update provider has not been created")
}
return _provider
}
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beforeAll(async () => {
mockLogger()
const testName = "update"
await clean(testName)
const testDir = await tmpdir(testName)
const jsonPath = path.join(testDir, "update.json")
_settings = new SettingsProvider<UpdateSettings>(jsonPath)
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await new Promise((resolve, reject) => {
server.on("error", reject)
server.on("listening", resolve)
server.listen({
port: 0,
host: "localhost",
})
})
_address = server.address()
if (!isAddressInfo(_address)) {
throw new Error("unexpected address")
}
_provider = new UpdateProvider(`http://${_address?.address}:${_address?.port}/latest`, _settings)
})
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afterAll(() => {
server.close()
})
beforeEach(() => {
jest.clearAllMocks()
spy = []
})
it("should get the latest", async () => {
version = "2.1.0"
const p = provider()
const now = Date.now()
const update = await p.getUpdate()
await expect(settings().read()).resolves.toEqual({ update })
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expect(isNaN(update.checked)).toEqual(false)
expect(update.checked).toBeGreaterThanOrEqual(now)
expect(update.checked).toBeLessThanOrEqual(Date.now())
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expect(update.version).toStrictEqual("2.1.0")
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expect(spy).toEqual(["/latest"])
})
it("should keep existing information", async () => {
version = "3.0.1"
const p = provider()
const now = Date.now()
const update = await p.getUpdate()
await expect(settings().read()).resolves.toEqual({ update })
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expect(isNaN(update.checked)).toStrictEqual(false)
expect(update.checked).toBeLessThanOrEqual(now)
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expect(update.version).toStrictEqual("2.1.0")
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expect(spy).toEqual([])
})
it("should force getting the latest", async () => {
version = "4.1.1"
const p = provider()
const now = Date.now()
const update = await p.getUpdate(true)
await expect(settings().read()).resolves.toEqual({ update })
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expect(isNaN(update.checked)).toStrictEqual(false)
expect(update.checked).toBeGreaterThanOrEqual(now)
expect(update.checked).toBeLessThanOrEqual(Date.now())
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expect(update.version).toStrictEqual("4.1.1")
expect(spy).toStrictEqual(["/latest"])
})
it("should get latest after interval passes", async () => {
const p = provider()
await p.getUpdate()
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expect(spy).toEqual([])
let checked = Date.now() - 1000 * 60 * 60 * 23
await settings().write({ update: { checked, version } })
await p.getUpdate()
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expect(spy).toEqual([])
checked = Date.now() - 1000 * 60 * 60 * 25
await settings().write({ update: { checked, version } })
const update = await p.getUpdate()
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expect(update.checked).not.toStrictEqual(checked)
expect(spy).toStrictEqual(["/latest"])
})
it("should check if it's the current version", async () => {
version = "9999999.99999.9999"
const p = provider()
let update = await p.getUpdate(true)
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expect(p.isLatestVersion(update)).toStrictEqual(false)
version = "0.0.0"
update = await p.getUpdate(true)
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expect(p.isLatestVersion(update)).toStrictEqual(true)
// Old version format; make sure it doesn't report as being later.
version = "999999.9999-invalid999.99.9"
update = await p.getUpdate(true)
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expect(p.isLatestVersion(update)).toStrictEqual(true)
})
it("should not reject if unable to fetch", async () => {
let provider = new UpdateProvider("invalid", settings())
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let now = Date.now()
let update = await provider.getUpdate(true)
expect(isNaN(update.checked)).toStrictEqual(false)
expect(update.checked).toBeGreaterThanOrEqual(now)
expect(update.checked).toBeLessThanOrEqual(Date.now())
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expect(update.version).toStrictEqual("unknown")
provider = new UpdateProvider("http://probably.invalid.dev.localhost/latest", settings())
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now = Date.now()
update = await provider.getUpdate(true)
expect(isNaN(update.checked)).toStrictEqual(false)
expect(update.checked).toBeGreaterThanOrEqual(now)
expect(update.checked).toBeLessThanOrEqual(Date.now())
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expect(update.version).toStrictEqual("unknown")
})
it("should reject if response has status code 500", async () => {
if (isAddressInfo(_address)) {
const mockURL = `http://${_address.address}:${_address.port}/reject-status-code`
const provider = new UpdateProvider(mockURL, settings())
const update = await provider.getUpdate(true)
expect(update.version).toBe("unknown")
expect(logger.error).toHaveBeenCalled()
expect(logger.error).toHaveBeenCalledWith("Failed to get latest version", {
identifier: "error",
value: `${mockURL}: 500`,
})
}
})
it("should reject if no location header provided", async () => {
if (isAddressInfo(_address)) {
const mockURL = `http://${_address.address}:${_address.port}/no-location-header`
const provider = new UpdateProvider(mockURL, settings())
const update = await provider.getUpdate(true)
expect(update.version).toBe("unknown")
expect(logger.error).toHaveBeenCalled()
expect(logger.error).toHaveBeenCalledWith("Failed to get latest version", {
identifier: "error",
value: `received redirect with no location header`,
})
}
})
it("should resolve the request with response.headers.location", async () => {
version = "4.1.1"
if (isAddressInfo(_address)) {
const mockURL = `http://${_address.address}:${_address.port}/with-location-header`
const provider = new UpdateProvider(mockURL, settings())
const update = await provider.getUpdate(true)
expect(logger.error).not.toHaveBeenCalled()
expect(update.version).toBe("4.1.1")
}
})
it("should reject if more than 10 redirects", async () => {
if (isAddressInfo(_address)) {
const mockURL = `http://${_address.address}:${_address.port}/redirect/11`
const provider = new UpdateProvider(mockURL, settings())
const update = await provider.getUpdate(true)
expect(update.version).toBe("unknown")
expect(logger.error).toHaveBeenCalled()
expect(logger.error).toHaveBeenCalledWith("Failed to get latest version", {
identifier: "error",
value: `reached max redirects`,
})
}
})
})