590 lines
17 KiB
Go
590 lines
17 KiB
Go
// Copyright 2017 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser 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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// The go-ethereum library 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 Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package client
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import (
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"bytes"
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"io/ioutil"
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"os"
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"path/filepath"
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"reflect"
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"sort"
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"testing"
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"github.com/ethereum/go-ethereum/swarm/storage"
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"github.com/ethereum/go-ethereum/swarm/storage/feed/lookup"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/swarm/api"
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swarmhttp "github.com/ethereum/go-ethereum/swarm/api/http"
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"github.com/ethereum/go-ethereum/swarm/storage/feed"
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)
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func serverFunc(api *api.API) swarmhttp.TestServer {
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return swarmhttp.NewServer(api, "")
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}
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// TestClientUploadDownloadRaw test uploading and downloading raw data to swarm
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func TestClientUploadDownloadRaw(t *testing.T) {
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testClientUploadDownloadRaw(false, t)
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}
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func TestClientUploadDownloadRawEncrypted(t *testing.T) {
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testClientUploadDownloadRaw(true, t)
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}
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func testClientUploadDownloadRaw(toEncrypt bool, t *testing.T) {
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srv := swarmhttp.NewTestSwarmServer(t, serverFunc, nil)
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defer srv.Close()
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client := NewClient(srv.URL)
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// upload some raw data
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data := []byte("foo123")
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hash, err := client.UploadRaw(bytes.NewReader(data), int64(len(data)), toEncrypt)
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if err != nil {
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t.Fatal(err)
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}
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// check we can download the same data
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res, isEncrypted, err := client.DownloadRaw(hash)
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if err != nil {
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t.Fatal(err)
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}
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if isEncrypted != toEncrypt {
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t.Fatalf("Expected encyption status %v got %v", toEncrypt, isEncrypted)
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}
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defer res.Close()
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gotData, err := ioutil.ReadAll(res)
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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(gotData, data) {
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t.Fatalf("expected downloaded data to be %q, got %q", data, gotData)
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}
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}
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// TestClientUploadDownloadFiles test uploading and downloading files to swarm
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// manifests
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func TestClientUploadDownloadFiles(t *testing.T) {
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testClientUploadDownloadFiles(false, t)
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}
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func TestClientUploadDownloadFilesEncrypted(t *testing.T) {
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testClientUploadDownloadFiles(true, t)
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}
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func testClientUploadDownloadFiles(toEncrypt bool, t *testing.T) {
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srv := swarmhttp.NewTestSwarmServer(t, serverFunc, nil)
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defer srv.Close()
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client := NewClient(srv.URL)
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upload := func(manifest, path string, data []byte) string {
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file := &File{
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ReadCloser: ioutil.NopCloser(bytes.NewReader(data)),
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ManifestEntry: api.ManifestEntry{
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Path: path,
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ContentType: "text/plain",
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Size: int64(len(data)),
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},
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}
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hash, err := client.Upload(file, manifest, toEncrypt)
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if err != nil {
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t.Fatal(err)
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}
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return hash
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}
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checkDownload := func(manifest, path string, expected []byte) {
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file, err := client.Download(manifest, path)
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if err != nil {
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t.Fatal(err)
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}
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defer file.Close()
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if file.Size != int64(len(expected)) {
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t.Fatalf("expected downloaded file to be %d bytes, got %d", len(expected), file.Size)
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}
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if file.ContentType != "text/plain" {
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t.Fatalf("expected downloaded file to have type %q, got %q", "text/plain", file.ContentType)
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}
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data, err := ioutil.ReadAll(file)
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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(data, expected) {
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t.Fatalf("expected downloaded data to be %q, got %q", expected, data)
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}
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}
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// upload a file to the root of a manifest
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rootData := []byte("some-data")
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rootHash := upload("", "", rootData)
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// check we can download the root file
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checkDownload(rootHash, "", rootData)
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// upload another file to the same manifest
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otherData := []byte("some-other-data")
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newHash := upload(rootHash, "some/other/path", otherData)
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// check we can download both files from the new manifest
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checkDownload(newHash, "", rootData)
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checkDownload(newHash, "some/other/path", otherData)
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// replace the root file with different data
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newHash = upload(newHash, "", otherData)
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// check both files have the other data
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checkDownload(newHash, "", otherData)
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checkDownload(newHash, "some/other/path", otherData)
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}
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var testDirFiles = []string{
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"file1.txt",
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"file2.txt",
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"dir1/file3.txt",
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"dir1/file4.txt",
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"dir2/file5.txt",
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"dir2/dir3/file6.txt",
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"dir2/dir4/file7.txt",
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"dir2/dir4/file8.txt",
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}
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func newTestDirectory(t *testing.T) string {
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dir, err := ioutil.TempDir("", "swarm-client-test")
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if err != nil {
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t.Fatal(err)
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}
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for _, file := range testDirFiles {
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path := filepath.Join(dir, file)
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if err := os.MkdirAll(filepath.Dir(path), 0755); err != nil {
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os.RemoveAll(dir)
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t.Fatalf("error creating dir for %s: %s", path, err)
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}
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if err := ioutil.WriteFile(path, []byte(file), 0644); err != nil {
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os.RemoveAll(dir)
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t.Fatalf("error writing file %s: %s", path, err)
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}
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}
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return dir
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}
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// TestClientUploadDownloadDirectory tests uploading and downloading a
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// directory of files to a swarm manifest
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func TestClientUploadDownloadDirectory(t *testing.T) {
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srv := swarmhttp.NewTestSwarmServer(t, serverFunc, nil)
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defer srv.Close()
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dir := newTestDirectory(t)
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defer os.RemoveAll(dir)
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// upload the directory
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client := NewClient(srv.URL)
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defaultPath := testDirFiles[0]
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hash, err := client.UploadDirectory(dir, defaultPath, "", false)
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if err != nil {
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t.Fatalf("error uploading directory: %s", err)
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}
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// check we can download the individual files
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checkDownloadFile := func(path string, expected []byte) {
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file, err := client.Download(hash, path)
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if err != nil {
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t.Fatal(err)
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}
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defer file.Close()
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data, err := ioutil.ReadAll(file)
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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(data, expected) {
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t.Fatalf("expected data to be %q, got %q", expected, data)
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}
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}
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for _, file := range testDirFiles {
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checkDownloadFile(file, []byte(file))
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}
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// check we can download the default path
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checkDownloadFile("", []byte(testDirFiles[0]))
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// check we can download the directory
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tmp, err := ioutil.TempDir("", "swarm-client-test")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(tmp)
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if err := client.DownloadDirectory(hash, "", tmp, ""); err != nil {
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t.Fatal(err)
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}
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for _, file := range testDirFiles {
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data, err := ioutil.ReadFile(filepath.Join(tmp, file))
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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(data, []byte(file)) {
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t.Fatalf("expected data to be %q, got %q", file, data)
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}
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}
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}
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// TestClientFileList tests listing files in a swarm manifest
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func TestClientFileList(t *testing.T) {
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testClientFileList(false, t)
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}
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func TestClientFileListEncrypted(t *testing.T) {
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testClientFileList(true, t)
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}
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func testClientFileList(toEncrypt bool, t *testing.T) {
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srv := swarmhttp.NewTestSwarmServer(t, serverFunc, nil)
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defer srv.Close()
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dir := newTestDirectory(t)
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defer os.RemoveAll(dir)
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client := NewClient(srv.URL)
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hash, err := client.UploadDirectory(dir, "", "", toEncrypt)
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if err != nil {
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t.Fatalf("error uploading directory: %s", err)
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}
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ls := func(prefix string) []string {
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list, err := client.List(hash, prefix, "")
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if err != nil {
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t.Fatal(err)
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}
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paths := make([]string, 0, len(list.CommonPrefixes)+len(list.Entries))
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paths = append(paths, list.CommonPrefixes...)
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for _, entry := range list.Entries {
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paths = append(paths, entry.Path)
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}
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sort.Strings(paths)
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return paths
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}
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tests := map[string][]string{
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"": {"dir1/", "dir2/", "file1.txt", "file2.txt"},
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"file": {"file1.txt", "file2.txt"},
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"file1": {"file1.txt"},
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"file2.txt": {"file2.txt"},
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"file12": {},
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"dir": {"dir1/", "dir2/"},
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"dir1": {"dir1/"},
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"dir1/": {"dir1/file3.txt", "dir1/file4.txt"},
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"dir1/file": {"dir1/file3.txt", "dir1/file4.txt"},
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"dir1/file3.txt": {"dir1/file3.txt"},
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"dir1/file34": {},
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"dir2/": {"dir2/dir3/", "dir2/dir4/", "dir2/file5.txt"},
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"dir2/file": {"dir2/file5.txt"},
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"dir2/dir": {"dir2/dir3/", "dir2/dir4/"},
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"dir2/dir3/": {"dir2/dir3/file6.txt"},
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"dir2/dir4/": {"dir2/dir4/file7.txt", "dir2/dir4/file8.txt"},
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"dir2/dir4/file": {"dir2/dir4/file7.txt", "dir2/dir4/file8.txt"},
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"dir2/dir4/file7.txt": {"dir2/dir4/file7.txt"},
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"dir2/dir4/file78": {},
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}
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for prefix, expected := range tests {
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actual := ls(prefix)
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if !reflect.DeepEqual(actual, expected) {
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t.Fatalf("expected prefix %q to return %v, got %v", prefix, expected, actual)
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}
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}
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}
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// TestClientMultipartUpload tests uploading files to swarm using a multipart
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// upload
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func TestClientMultipartUpload(t *testing.T) {
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srv := swarmhttp.NewTestSwarmServer(t, serverFunc, nil)
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defer srv.Close()
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// define an uploader which uploads testDirFiles with some data
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data := []byte("some-data")
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uploader := UploaderFunc(func(upload UploadFn) error {
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for _, name := range testDirFiles {
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file := &File{
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ReadCloser: ioutil.NopCloser(bytes.NewReader(data)),
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ManifestEntry: api.ManifestEntry{
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Path: name,
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ContentType: "text/plain",
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Size: int64(len(data)),
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},
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}
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if err := upload(file); err != nil {
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return err
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}
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}
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return nil
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})
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// upload the files as a multipart upload
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client := NewClient(srv.URL)
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hash, err := client.MultipartUpload("", uploader)
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if err != nil {
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t.Fatal(err)
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}
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// check we can download the individual files
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checkDownloadFile := func(path string) {
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file, err := client.Download(hash, path)
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if err != nil {
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t.Fatal(err)
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}
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defer file.Close()
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gotData, err := ioutil.ReadAll(file)
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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(gotData, data) {
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t.Fatalf("expected data to be %q, got %q", data, gotData)
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}
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}
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for _, file := range testDirFiles {
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checkDownloadFile(file)
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}
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}
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func newTestSigner() (*feed.GenericSigner, error) {
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privKey, err := crypto.HexToECDSA("deadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeef")
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if err != nil {
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return nil, err
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}
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return feed.NewGenericSigner(privKey), nil
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}
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// Test the transparent resolving of feed updates with bzz:// scheme
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//
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// First upload data to bzz:, and store the Swarm hash to the resulting manifest in a feed update.
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// This effectively uses a feed to store a pointer to content rather than the content itself
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// Retrieving the update with the Swarm hash should return the manifest pointing directly to the data
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// and raw retrieve of that hash should return the data
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func TestClientBzzWithFeed(t *testing.T) {
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signer, _ := newTestSigner()
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// Initialize a Swarm test server
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srv := swarmhttp.NewTestSwarmServer(t, serverFunc, nil)
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swarmClient := NewClient(srv.URL)
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defer srv.Close()
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// put together some data for our test:
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dataBytes := []byte(`
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//
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// Create some data our manifest will point to. Data that could be very big and wouldn't fit in a feed update.
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// So what we are going to do is upload it to Swarm bzz:// and obtain a **manifest hash** pointing to it:
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//
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// MANIFEST HASH --> DATA
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//
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// Then, we store that **manifest hash** into a Swarm Feed update. Once we have done this,
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// we can use the **feed manifest hash** in bzz:// instead, this way: bzz://feed-manifest-hash.
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//
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// FEED MANIFEST HASH --> MANIFEST HASH --> DATA
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//
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// Given that we can update the feed at any time with a new **manifest hash** but the **feed manifest hash**
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// stays constant, we have effectively created a fixed address to changing content. (Applause)
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//
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// FEED MANIFEST HASH (the same) --> MANIFEST HASH(2) --> DATA(2)
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//
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`)
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// Create a virtual File out of memory containing the above data
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f := &File{
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ReadCloser: ioutil.NopCloser(bytes.NewReader(dataBytes)),
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ManifestEntry: api.ManifestEntry{
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ContentType: "text/plain",
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Mode: 0660,
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Size: int64(len(dataBytes)),
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},
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}
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// upload data to bzz:// and retrieve the content-addressed manifest hash, hex-encoded.
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manifestAddressHex, err := swarmClient.Upload(f, "", false)
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if err != nil {
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t.Fatalf("Error creating manifest: %s", err)
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}
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// convert the hex-encoded manifest hash to a 32-byte slice
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manifestAddress := common.FromHex(manifestAddressHex)
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if len(manifestAddress) != storage.AddressLength {
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t.Fatalf("Something went wrong. Got a hash of an unexpected length. Expected %d bytes. Got %d", storage.AddressLength, len(manifestAddress))
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}
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// Now create a **feed manifest**. For that, we need a topic:
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topic, _ := feed.NewTopic("interesting topic indeed", nil)
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// Build a feed request to update data
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request := feed.NewFirstRequest(topic)
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// Put the 32-byte address of the manifest into the feed update
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request.SetData(manifestAddress)
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// Sign the update
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if err := request.Sign(signer); err != nil {
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t.Fatalf("Error signing update: %s", err)
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}
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// Publish the update and at the same time request a **feed manifest** to be created
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feedManifestAddressHex, err := swarmClient.CreateFeedWithManifest(request)
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if err != nil {
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t.Fatalf("Error creating feed manifest: %s", err)
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}
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// Check we have received the exact **feed manifest** to be expected
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// given the topic and user signing the updates:
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correctFeedManifestAddrHex := "747c402e5b9dc715a25a4393147512167bab018a007fad7cdcd9adc7fce1ced2"
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if feedManifestAddressHex != correctFeedManifestAddrHex {
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t.Fatalf("Response feed manifest mismatch, expected '%s', got '%s'", correctFeedManifestAddrHex, feedManifestAddressHex)
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}
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// Check we get a not found error when trying to get feed updates with a made-up manifest
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_, err = swarmClient.QueryFeed(nil, "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb")
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if err != ErrNoFeedUpdatesFound {
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t.Fatalf("Expected to receive ErrNoFeedUpdatesFound error. Got: %s", err)
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}
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// If we query the feed directly we should get **manifest hash** back:
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reader, err := swarmClient.QueryFeed(nil, correctFeedManifestAddrHex)
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if err != nil {
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t.Fatalf("Error retrieving feed updates: %s", err)
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}
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defer reader.Close()
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gotData, err := ioutil.ReadAll(reader)
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if err != nil {
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t.Fatal(err)
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}
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//Check that indeed the **manifest hash** is retrieved
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if !bytes.Equal(manifestAddress, gotData) {
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t.Fatalf("Expected: %v, got %v", manifestAddress, gotData)
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}
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// Now the final test we were looking for: Use bzz://<feed-manifest> and that should resolve all manifests
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// and return the original data directly:
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f, err = swarmClient.Download(feedManifestAddressHex, "")
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if err != nil {
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t.Fatal(err)
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}
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gotData, err = ioutil.ReadAll(f)
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if err != nil {
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t.Fatal(err)
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}
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// Check that we get back the original data:
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if !bytes.Equal(dataBytes, gotData) {
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t.Fatalf("Expected: %v, got %v", manifestAddress, gotData)
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}
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}
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// TestClientCreateUpdateFeed will check that feeds can be created and updated via the HTTP client.
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func TestClientCreateUpdateFeed(t *testing.T) {
|
|
|
|
signer, _ := newTestSigner()
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|
|
|
srv := swarmhttp.NewTestSwarmServer(t, serverFunc, nil)
|
|
client := NewClient(srv.URL)
|
|
defer srv.Close()
|
|
|
|
// set raw data for the feed update
|
|
databytes := []byte("En un lugar de La Mancha, de cuyo nombre no quiero acordarme...")
|
|
|
|
// our feed topic name
|
|
topic, _ := feed.NewTopic("El Quijote", nil)
|
|
createRequest := feed.NewFirstRequest(topic)
|
|
|
|
createRequest.SetData(databytes)
|
|
if err := createRequest.Sign(signer); err != nil {
|
|
t.Fatalf("Error signing update: %s", err)
|
|
}
|
|
|
|
feedManifestHash, err := client.CreateFeedWithManifest(createRequest)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
correctManifestAddrHex := "0e9b645ebc3da167b1d56399adc3276f7a08229301b72a03336be0e7d4b71882"
|
|
if feedManifestHash != correctManifestAddrHex {
|
|
t.Fatalf("Response feed manifest mismatch, expected '%s', got '%s'", correctManifestAddrHex, feedManifestHash)
|
|
}
|
|
|
|
reader, err := client.QueryFeed(nil, correctManifestAddrHex)
|
|
if err != nil {
|
|
t.Fatalf("Error retrieving feed updates: %s", err)
|
|
}
|
|
defer reader.Close()
|
|
gotData, err := ioutil.ReadAll(reader)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if !bytes.Equal(databytes, gotData) {
|
|
t.Fatalf("Expected: %v, got %v", databytes, gotData)
|
|
}
|
|
|
|
// define different data
|
|
databytes = []byte("... no ha mucho tiempo que vivía un hidalgo de los de lanza en astillero ...")
|
|
|
|
updateRequest, err := client.GetFeedRequest(nil, correctManifestAddrHex)
|
|
if err != nil {
|
|
t.Fatalf("Error retrieving update request template: %s", err)
|
|
}
|
|
|
|
updateRequest.SetData(databytes)
|
|
if err := updateRequest.Sign(signer); err != nil {
|
|
t.Fatalf("Error signing update: %s", err)
|
|
}
|
|
|
|
if err = client.UpdateFeed(updateRequest); err != nil {
|
|
t.Fatalf("Error updating feed: %s", err)
|
|
}
|
|
|
|
reader, err = client.QueryFeed(nil, correctManifestAddrHex)
|
|
if err != nil {
|
|
t.Fatalf("Error retrieving feed updates: %s", err)
|
|
}
|
|
defer reader.Close()
|
|
gotData, err = ioutil.ReadAll(reader)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if !bytes.Equal(databytes, gotData) {
|
|
t.Fatalf("Expected: %v, got %v", databytes, gotData)
|
|
}
|
|
|
|
// now try retrieving feed updates without a manifest
|
|
|
|
fd := &feed.Feed{
|
|
Topic: topic,
|
|
User: signer.Address(),
|
|
}
|
|
|
|
lookupParams := feed.NewQueryLatest(fd, lookup.NoClue)
|
|
reader, err = client.QueryFeed(lookupParams, "")
|
|
if err != nil {
|
|
t.Fatalf("Error retrieving feed updates: %s", err)
|
|
}
|
|
defer reader.Close()
|
|
gotData, err = ioutil.ReadAll(reader)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if !bytes.Equal(databytes, gotData) {
|
|
t.Fatalf("Expected: %v, got %v", databytes, gotData)
|
|
}
|
|
}
|