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