// Copyright 2018 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// go-ethereum is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
package main
import (
"archive/tar"
"bytes"
"compress/gzip"
"crypto/md5"
"encoding/base64"
"encoding/hex"
"io"
"io/ioutil"
"net/http"
"os"
"path"
"runtime"
"strings"
"testing"
"github.com/ethereum/go-ethereum/cmd/swarm/testdata"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/swarm"
"github.com/ethereum/go-ethereum/swarm/testutil"
)
const (
DATABASE_FIXTURE_BZZ_ACCOUNT = "0aa159029fa13ffa8fa1c6fff6ebceface99d6a4"
DATABASE_FIXTURE_PASSWORD = "pass"
FIXTURE_DATADIR_PREFIX = "swarm/bzz-0aa159029fa13ffa8fa1c6fff6ebceface99d6a4"
FixtureBaseKey = "a9f22b3d77b4bdf5f3eefce995d6c8e7cecf2636f20956f08a0d1ed95adb52ad"
)
// TestCLISwarmExportImport perform the following test:
// 1. runs swarm node
// 2. uploads a random file
// 3. runs an export of the local datastore
// 4. runs a second swarm node
// 5. imports the exported datastore
// 6. fetches the uploaded random file from the second node
func TestCLISwarmExportImport(t *testing.T) {
if runtime.GOOS == "windows" {
t.Skip()
}
cluster := newTestCluster(t, 1)
// generate random 1mb file
content := testutil.RandomBytes(1, 1000000)
fileName := testutil.TempFileWithContent(t, string(content))
defer os.Remove(fileName)
// upload the file with 'swarm up' and expect a hash
up := runSwarm(t, "--bzzapi", cluster.Nodes[0].URL, "up", fileName)
_, matches := up.ExpectRegexp(`[a-f\d]{64}`)
up.ExpectExit()
hash := matches[0]
var info swarm.Info
if err := cluster.Nodes[0].Client.Call(&info, "bzz_info"); err != nil {
t.Fatal(err)
}
cluster.Stop()
defer cluster.Cleanup()
// generate an export.tar
exportCmd := runSwarm(t, "db", "export", info.Path+"/chunks", info.Path+"/export.tar", strings.TrimPrefix(info.BzzKey, "0x"))
exportCmd.ExpectExit()
// start second cluster
cluster2 := newTestCluster(t, 1)
var info2 swarm.Info
if err := cluster2.Nodes[0].Client.Call(&info2, "bzz_info"); err != nil {
t.Fatal(err)
}
// stop second cluster, so that we close LevelDB
cluster2.Stop()
defer cluster2.Cleanup()
// import the export.tar
importCmd := runSwarm(t, "db", "import", info2.Path+"/chunks", info.Path+"/export.tar", strings.TrimPrefix(info2.BzzKey, "0x"))
importCmd.ExpectExit()
// spin second cluster back up
cluster2.StartExistingNodes(t, 1, strings.TrimPrefix(info2.BzzAccount, "0x"))
// try to fetch imported file
res, err := http.Get(cluster2.Nodes[0].URL + "/bzz:/" + hash)
if err != nil {
t.Fatal(err)
}
if res.StatusCode != 200 {
t.Fatalf("expected HTTP status %d, got %s", 200, res.Status)
}
// compare downloaded file with the generated random file
mustEqualFiles(t, bytes.NewReader(content), res.Body)
}
// TestExportLegacyToNew checks that an old database gets imported correctly into the new localstore structure
// The test sequence is as follows:
// 1. unpack database fixture to tmp dir
// 2. try to open with new swarm binary that should complain about old database
// 3. export from old database
// 4. remove the chunks folder
// 5. import the dump
// 6. file should be accessible
func TestExportLegacyToNew(t *testing.T) {
if runtime.GOOS == "windows" {
t.Skip() // this should be reenabled once the appveyor tests underlying issue is fixed
}
/*
fixture bzz account 0aa159029fa13ffa8fa1c6fff6ebceface99d6a4
*/
const UPLOADED_FILE_MD5_HASH = "a001fdae53ba50cae584b8b02b06f821"
const UPLOADED_HASH = "67a86082ee0ea1bc7dd8d955bb1e14d04f61d55ae6a4b37b3d0296a3a95e454a"
tmpdir, err := ioutil.TempDir("", "swarm-test")
log.Trace("running legacy datastore migration test", "temp dir", tmpdir)
defer os.RemoveAll(tmpdir)
if err != nil {
t.Fatal(err)
}
inflateBase64Gzip(t, testdata.DATADIR_MIGRATION_FIXTURE, tmpdir)
tmpPassword := testutil.TempFileWithContent(t, DATABASE_FIXTURE_PASSWORD)
defer os.Remove(tmpPassword)
flags := []string{
"--datadir", tmpdir,
"--bzzaccount", DATABASE_FIXTURE_BZZ_ACCOUNT,
"--password", tmpPassword,
}
newSwarmOldDb := runSwarm(t, flags...)
_, matches := newSwarmOldDb.ExpectRegexp(".+")
newSwarmOldDb.ExpectExit()
if len(matches) == 0 {
t.Fatalf("stdout not matched")
}
if newSwarmOldDb.ExitStatus() == 0 {
t.Fatal("should error")
}
t.Log("exporting legacy database")
actualDataDir := path.Join(tmpdir, FIXTURE_DATADIR_PREFIX)
exportCmd := runSwarm(t, "--verbosity", "5", "db", "export", actualDataDir+"/chunks", tmpdir+"/export.tar", FixtureBaseKey)
exportCmd.ExpectExit()
stat, err := os.Stat(tmpdir + "/export.tar")
if err != nil {
t.Fatal(err)
}
// make some silly size assumption
if stat.Size() < 90000 {
t.Fatal("export size too small")
}
log.Info("removing chunk datadir")
err = os.RemoveAll(path.Join(actualDataDir, "chunks"))
if err != nil {
t.Fatal(err)
}
// start second cluster
cluster2 := newTestCluster(t, 1)
var info2 swarm.Info
if err := cluster2.Nodes[0].Client.Call(&info2, "bzz_info"); err != nil {
t.Fatal(err)
}
// stop second cluster, so that we close LevelDB
cluster2.Stop()
defer cluster2.Cleanup()
// import the export.tar
importCmd := runSwarm(t, "db", "import", "--legacy", info2.Path+"/chunks", tmpdir+"/export.tar", strings.TrimPrefix(info2.BzzKey, "0x"))
importCmd.ExpectExit()
// spin second cluster back up
cluster2.StartExistingNodes(t, 1, strings.TrimPrefix(info2.BzzAccount, "0x"))
t.Log("trying to http get the file")
// try to fetch imported file
res, err := http.Get(cluster2.Nodes[0].URL + "/bzz:/" + UPLOADED_HASH)
if err != nil {
t.Fatal(err)
}
if res.StatusCode != 200 {
t.Fatalf("expected HTTP status %d, got %s", 200, res.Status)
}
h := md5.New()
if _, err := io.Copy(h, res.Body); err != nil {
t.Fatal(err)
}
sum := h.Sum(nil)
b, err := hex.DecodeString(UPLOADED_FILE_MD5_HASH)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(sum, b) {
t.Fatal("should be equal")
}
}
func mustEqualFiles(t *testing.T, up io.Reader, down io.Reader) {
h := md5.New()
upLen, err := io.Copy(h, up)
if err != nil {
t.Fatal(err)
}
upHash := h.Sum(nil)
h.Reset()
downLen, err := io.Copy(h, down)
if err != nil {
t.Fatal(err)
}
downHash := h.Sum(nil)
if !bytes.Equal(upHash, downHash) || upLen != downLen {
t.Fatalf("downloaded imported file md5=%x (length %v) is not the same as the generated one mp5=%x (length %v)", downHash, downLen, upHash, upLen)
}
}
func inflateBase64Gzip(t *testing.T, base64File, directory string) {
t.Helper()
f := base64.NewDecoder(base64.StdEncoding, strings.NewReader(base64File))
gzf, err := gzip.NewReader(f)
if err != nil {
t.Fatal(err)
}
tarReader := tar.NewReader(gzf)
for {
header, err := tarReader.Next()
if err == io.EOF {
break
}
if err != nil {
t.Fatal(err)
}
name := header.Name
switch header.Typeflag {
case tar.TypeDir:
err := os.Mkdir(path.Join(directory, name), os.ModePerm)
if err != nil {
t.Fatal(err)
}
case tar.TypeReg:
file, err := os.Create(path.Join(directory, name))
if err != nil {
t.Fatal(err)
}
if _, err := io.Copy(file, tarReader); err != nil {
t.Fatal(err)
}
file.Close()
default:
t.Fatal("shouldn't happen")
}
}
}
