cloudflared-mirror/cmd/cloudflared/updater/workers_service_test.go

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//go:build !windows
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package updater
import (
"archive/tar"
"bytes"
"compress/gzip"
"crypto/sha256"
"encoding/json"
"errors"
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"fmt"
"log"
"net/http"
"net/http/httptest"
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"os"
"path/filepath"
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"runtime"
"strconv"
"strings"
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"testing"
"github.com/stretchr/testify/require"
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)
var testFilePath = filepath.Join(os.TempDir(), "test")
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func respondWithJSON(w http.ResponseWriter, v interface{}, status int) {
data, _ := json.Marshal(v)
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(status)
w.Write(data)
}
func respondWithData(w http.ResponseWriter, b []byte, status int) {
w.Header().Set("Content-Type", "application/octet-stream")
w.WriteHeader(status)
w.Write(b)
}
const mostRecentVersion = "2021.2.5"
const mostRecentBetaVersion = "2021.3.0"
const knownBuggyVersion = "2020.12.0"
const expectedUserMsg = "This message is expected when running a known buggy version"
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func updateHandler(w http.ResponseWriter, r *http.Request) {
version := mostRecentVersion
host := fmt.Sprintf("http://%s", r.Host)
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url := host + "/download"
query := r.URL.Query()
if query.Get(BetaKeyName) == "true" {
version = mostRecentBetaVersion
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url = host + "/beta"
}
requestedVersion := query.Get(VersionKeyName)
if requestedVersion != "" {
version = requestedVersion
url = fmt.Sprintf("%s?version=%s", url, requestedVersion)
}
if query.Get(ArchitectureKeyName) != runtime.GOARCH || query.Get(OSKeyName) != runtime.GOOS {
respondWithJSON(w, VersionResponse{Error: "unsupported os and architecture"}, http.StatusBadRequest)
return
}
h := sha256.New()
fmt.Fprint(h, version)
checksum := fmt.Sprintf("%x", h.Sum(nil))
var userMessage = ""
if query.Get(ClientVersionName) == knownBuggyVersion {
userMessage = expectedUserMsg
}
shouldUpdate := requestedVersion != "" || IsNewerVersion(query.Get(ClientVersionName), version)
v := VersionResponse{
URL: url, Version: version, Checksum: checksum, UserMessage: userMessage, ShouldUpdate: shouldUpdate,
}
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respondWithJSON(w, v, http.StatusOK)
}
func gzipUpdateHandler(w http.ResponseWriter, r *http.Request) {
log.Println("got a request!")
version := "2020.09.02"
h := sha256.New()
fmt.Fprint(h, version)
checksum := fmt.Sprintf("%x", h.Sum(nil))
url := fmt.Sprintf("http://%s/gzip-download.tgz", r.Host)
v := VersionResponse{URL: url, Version: version, Checksum: checksum, ShouldUpdate: true}
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respondWithJSON(w, v, http.StatusOK)
}
func compressedDownloadHandler(w http.ResponseWriter, r *http.Request) {
version := "2020.09.02"
buf := new(bytes.Buffer)
gw := gzip.NewWriter(buf)
tw := tar.NewWriter(gw)
header := &tar.Header{
Size: int64(len(version)),
Name: "download",
}
tw.WriteHeader(header)
tw.Write([]byte(version))
tw.Close()
gw.Close()
respondWithData(w, buf.Bytes(), http.StatusOK)
}
func downloadHandler(w http.ResponseWriter, r *http.Request) {
version := mostRecentVersion
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requestedVersion := r.URL.Query().Get(VersionKeyName)
if requestedVersion != "" {
version = requestedVersion
}
respondWithData(w, []byte(version), http.StatusOK)
}
func betaHandler(w http.ResponseWriter, r *http.Request) {
respondWithData(w, []byte(mostRecentBetaVersion), http.StatusOK)
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}
func failureHandler(w http.ResponseWriter, r *http.Request) {
respondWithJSON(w, VersionResponse{Error: "unsupported os and architecture"}, http.StatusBadRequest)
}
func IsNewerVersion(current string, check string) bool {
if current == "" || check == "" {
return false
}
if strings.Contains(strings.ToLower(current), "dev") {
return false // dev builds shouldn't update
}
cMajor, cMinor, cPatch, err := SemanticParts(current)
if err != nil {
return false
}
nMajor, nMinor, nPatch, err := SemanticParts(check)
if err != nil {
return false
}
if nMajor > cMajor {
return true
}
if nMajor == cMajor && nMinor > cMinor {
return true
}
if nMajor == cMajor && nMinor == cMinor && nPatch > cPatch {
return true
}
return false
}
func SemanticParts(version string) (major int, minor int, patch int, err error) {
major = 0
minor = 0
patch = 0
parts := strings.Split(version, ".")
if len(parts) != 3 {
err = errors.New("invalid version")
return
}
major, err = strconv.Atoi(parts[0])
if err != nil {
return
}
minor, err = strconv.Atoi(parts[1])
if err != nil {
return
}
patch, err = strconv.Atoi(parts[2])
if err != nil {
return
}
return
}
func createServer() *httptest.Server {
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mux := http.NewServeMux()
mux.HandleFunc("/updater", updateHandler)
mux.HandleFunc("/download", downloadHandler)
mux.HandleFunc("/beta", betaHandler)
mux.HandleFunc("/fail", failureHandler)
mux.HandleFunc("/compressed", gzipUpdateHandler)
mux.HandleFunc("/gzip-download.tgz", compressedDownloadHandler)
return httptest.NewServer(mux)
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}
func createTestFile(t *testing.T, path string) {
f, err := os.Create(path)
require.NoError(t, err)
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fmt.Fprint(f, "2020.08.04")
f.Close()
}
func TestUpdateService(t *testing.T) {
ts := createServer()
defer ts.Close()
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createTestFile(t, testFilePath)
defer os.Remove(testFilePath)
log.Println("server url: ", ts.URL)
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s := NewWorkersService("2020.8.2", fmt.Sprintf("%s/updater", ts.URL), testFilePath, Options{})
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v, err := s.Check()
require.NoError(t, err)
require.Equal(t, v.Version(), mostRecentVersion)
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require.NoError(t, v.Apply())
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dat, err := os.ReadFile(testFilePath)
require.NoError(t, err)
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require.Equal(t, string(dat), mostRecentVersion)
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}
func TestBetaUpdateService(t *testing.T) {
ts := createServer()
defer ts.Close()
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createTestFile(t, testFilePath)
defer os.Remove(testFilePath)
s := NewWorkersService("2020.8.2", fmt.Sprintf("%s/updater", ts.URL), testFilePath, Options{IsBeta: true})
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v, err := s.Check()
require.NoError(t, err)
require.Equal(t, v.Version(), mostRecentBetaVersion)
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require.NoError(t, v.Apply())
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dat, err := os.ReadFile(testFilePath)
require.NoError(t, err)
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require.Equal(t, string(dat), mostRecentBetaVersion)
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}
func TestFailUpdateService(t *testing.T) {
ts := createServer()
defer ts.Close()
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createTestFile(t, testFilePath)
defer os.Remove(testFilePath)
s := NewWorkersService("2020.8.2", fmt.Sprintf("%s/fail", ts.URL), testFilePath, Options{})
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v, err := s.Check()
require.Error(t, err)
require.Nil(t, v)
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}
func TestNoUpdateService(t *testing.T) {
ts := createServer()
defer ts.Close()
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createTestFile(t, testFilePath)
defer os.Remove(testFilePath)
s := NewWorkersService(mostRecentVersion, fmt.Sprintf("%s/updater", ts.URL), testFilePath, Options{})
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v, err := s.Check()
require.NoError(t, err)
require.NotNil(t, v)
require.Empty(t, v.Version())
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}
func TestForcedUpdateService(t *testing.T) {
ts := createServer()
defer ts.Close()
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createTestFile(t, testFilePath)
defer os.Remove(testFilePath)
s := NewWorkersService("2020.8.5", fmt.Sprintf("%s/updater", ts.URL), testFilePath, Options{IsForced: true})
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v, err := s.Check()
require.NoError(t, err)
require.Equal(t, v.Version(), mostRecentVersion)
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require.NoError(t, v.Apply())
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dat, err := os.ReadFile(testFilePath)
require.NoError(t, err)
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require.Equal(t, string(dat), mostRecentVersion)
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}
func TestUpdateSpecificVersionService(t *testing.T) {
ts := createServer()
defer ts.Close()
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createTestFile(t, testFilePath)
defer os.Remove(testFilePath)
reqVersion := "2020.9.1"
s := NewWorkersService("2020.8.2", fmt.Sprintf("%s/updater", ts.URL), testFilePath, Options{RequestedVersion: reqVersion})
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v, err := s.Check()
require.NoError(t, err)
require.Equal(t, reqVersion, v.Version())
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require.NoError(t, v.Apply())
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dat, err := os.ReadFile(testFilePath)
require.NoError(t, err)
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require.Equal(t, reqVersion, string(dat))
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}
func TestCompressedUpdateService(t *testing.T) {
ts := createServer()
defer ts.Close()
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createTestFile(t, testFilePath)
defer os.Remove(testFilePath)
s := NewWorkersService("2020.8.2", fmt.Sprintf("%s/compressed", ts.URL), testFilePath, Options{})
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v, err := s.Check()
require.NoError(t, err)
require.Equal(t, "2020.09.02", v.Version())
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require.NoError(t, v.Apply())
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dat, err := os.ReadFile(testFilePath)
require.NoError(t, err)
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require.Equal(t, "2020.09.02", string(dat))
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}
func TestUpdateWhenRunningKnownBuggyVersion(t *testing.T) {
ts := createServer()
defer ts.Close()
createTestFile(t, testFilePath)
defer os.Remove(testFilePath)
s := NewWorkersService(knownBuggyVersion, fmt.Sprintf("%s/updater", ts.URL), testFilePath, Options{})
v, err := s.Check()
require.NoError(t, err)
require.Equal(t, v.Version(), mostRecentVersion)
require.Equal(t, v.UserMessage(), expectedUserMsg)
}