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未验证 提交 7038b573 编写于 作者: E Elad 提交者： Rafael Matias
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cmd/swarm/swarm-smoke: sliding window test (#18967) 

(cherry picked from commit b91bf088)
上级 1ecf2860
隐藏空白更改
内联 并排
Showing with 416 addition and 298 deletion
cmd/swarm/swarm-smoke/feed_upload_and_sync.go
浏览文件 @ 7038b573
......@@ -2,13 +2,11 @@ package main
import (
"bytes"
"context"
"crypto/md5"
crand "crypto/rand"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/http/httptrace"
"os"
"os/exec"
"strings"
......@@ -18,13 +16,7 @@ import (
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/metrics"
"github.com/ethereum/go-ethereum/swarm/api/client"
"github.com/ethereum/go-ethereum/swarm/spancontext"
"github.com/ethereum/go-ethereum/swarm/storage/feed"
"github.com/ethereum/go-ethereum/swarm/testutil"
colorable "github.com/mattn/go-colorable"
opentracing "github.com/opentracing/opentracing-go"
"github.com/pborman/uuid"
cli "gopkg.in/urfave/cli.v1"
)
......@@ -33,27 +25,6 @@ const (
feedRandomDataLength = 8
)
func cliFeedUploadAndSync(c *cli.Context) error {
metrics.GetOrRegisterCounter("feed-and-sync", nil).Inc(1)
log.Root().SetHandler(log.CallerFileHandler(log.LvlFilterHandler(log.Lvl(verbosity), log.StreamHandler(colorable.NewColorableStderr(), log.TerminalFormat(true)))))
errc := make(chan error)
go func() {
errc <- feedUploadAndSync(c)
}()
select {
case err := <-errc:
if err != nil {
metrics.GetOrRegisterCounter("feed-and-sync.fail", nil).Inc(1)
}
return err
case <-time.After(time.Duration(timeout) * time.Second):
metrics.GetOrRegisterCounter("feed-and-sync.timeout", nil).Inc(1)
return fmt.Errorf("timeout after %v sec", timeout)
}
}
// TODO: retrieve with manifest + extract repeating code
func feedUploadAndSync(c *cli.Context) error {
defer func(now time.Time) { log.Info("total time", "time", time.Since(now), "size (kb)", filesize) }(time.Now())
......@@ -232,9 +203,10 @@ func feedUploadAndSync(c *cli.Context) error {
seed := int(time.Now().UnixNano() / 1e6)
log.Info("feed uploading to "+endpoints[0]+" and syncing", "seed", seed)
randomBytes := testutil.RandomBytes(seed, filesize*1000)
h = md5.New()
r := io.TeeReader(io.LimitReader(crand.Reader, int64(filesize*1000)), h)
hash, err := upload(&randomBytes, endpoints[0])
hash, err := upload(r, filesize*1000, endpoints[0])
if err != nil {
return err
}
......@@ -243,10 +215,7 @@ func feedUploadAndSync(c *cli.Context) error {
return err
}
multihashHex := hexutil.Encode(hashBytes)
fileHash, err := digest(bytes.NewReader(randomBytes))
if err != nil {
return err
}
fileHash := h.Sum(nil)
log.Info("uploaded successfully", "hash", hash, "digest", fmt.Sprintf("%x", fileHash))
......@@ -307,60 +276,3 @@ func feedUploadAndSync(c *cli.Context) error {
return nil
}
func fetchFeed(topic string, user string, endpoint string, original []byte, ruid string) error {
ctx, sp := spancontext.StartSpan(context.Background(), "feed-and-sync.fetch")
defer sp.Finish()
log.Trace("sleeping", "ruid", ruid)
time.Sleep(3 * time.Second)
log.Trace("http get request (feed)", "ruid", ruid, "api", endpoint, "topic", topic, "user", user)
var tn time.Time
reqUri := endpoint + "/bzz-feed:/?topic=" + topic + "&user=" + user
req, _ := http.NewRequest("GET", reqUri, nil)
opentracing.GlobalTracer().Inject(
sp.Context(),
opentracing.HTTPHeaders,
opentracing.HTTPHeadersCarrier(req.Header))
trace := client.GetClientTrace("feed-and-sync - http get", "feed-and-sync", ruid, &tn)
req = req.WithContext(httptrace.WithClientTrace(ctx, trace))
transport := http.DefaultTransport
//transport.TLSClientConfig = &tls.Config{InsecureSkipVerify: true}
tn = time.Now()
res, err := transport.RoundTrip(req)
if err != nil {
log.Error(err.Error(), "ruid", ruid)
return err
}
log.Trace("http get response (feed)", "ruid", ruid, "api", endpoint, "topic", topic, "user", user, "code", res.StatusCode, "len", res.ContentLength)
if res.StatusCode != 200 {
return fmt.Errorf("expected status code %d, got %v (ruid %v)", 200, res.StatusCode, ruid)
}
defer res.Body.Close()
rdigest, err := digest(res.Body)
if err != nil {
log.Warn(err.Error(), "ruid", ruid)
return err
}
if !bytes.Equal(rdigest, original) {
err := fmt.Errorf("downloaded imported file md5=%x is not the same as the generated one=%x", rdigest, original)
log.Warn(err.Error(), "ruid", ruid)
return err
}
log.Trace("downloaded file matches random file", "ruid", ruid, "len", res.ContentLength)
return nil
}
cmd/swarm/swarm-smoke/main.go
浏览文件 @ 7038b573
......@@ -140,19 +140,25 @@ func main() {
Name: "upload_and_sync",
Aliases: []string{"c"},
Usage: "upload and sync",
Action: cliUploadAndSync,
Action: wrapCliCommand("upload-and-sync", true, uploadAndSync),
},
{
Name: "feed_sync",
Aliases: []string{"f"},
Usage: "feed update generate, upload and sync",
Action: cliFeedUploadAndSync,
Action: wrapCliCommand("feed-and-sync", true, feedUploadAndSync),
},
{
Name: "upload_speed",
Aliases: []string{"u"},
Usage: "measure upload speed",
Action: cliUploadSpeed,
Action: wrapCliCommand("upload-speed", true, uploadSpeed),
},
{
Name: "sliding_window",
Aliases: []string{"s"},
Usage: "measure network aggregate capacity",
Action: wrapCliCommand("sliding-window", false, slidingWindow),
},
}
......
cmd/swarm/swarm-smoke/sliding_window.go 0 → 100644
浏览文件 @ 7038b573
// 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 (
"crypto/md5"
crand "crypto/rand"
"fmt"
"io"
"math/rand"
"time"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/metrics"
"github.com/pborman/uuid"
cli "gopkg.in/urfave/cli.v1"
)
var seed = time.Now().UTC().UnixNano()
func init() {
rand.Seed(seed)
}
type uploadResult struct {
hash string
digest []byte
}
func slidingWindow(c *cli.Context) error {
defer func(now time.Time) {
totalTime := time.Since(now)
log.Info("total time", "time", totalTime)
metrics.GetOrRegisterCounter("sliding-window.total-time", nil).Inc(int64(totalTime))
}(time.Now())
generateEndpoints(scheme, cluster, appName, from, to)
hashes := []uploadResult{} //swarm hashes of the uploads
nodes := to - from
const iterationTimeout = 30 * time.Second
log.Info("sliding window test started", "nodes", nodes, "filesize(kb)", filesize, "timeout", timeout)
uploadedBytes := 0
networkDepth := 0
errored := false
outer:
for {
log.Info("uploading to "+endpoints[0]+" and syncing", "seed", seed)
h := md5.New()
r := io.TeeReader(io.LimitReader(crand.Reader, int64(filesize*1000)), h)
t1 := time.Now()
hash, err := upload(r, filesize*1000, endpoints[0])
if err != nil {
log.Error(err.Error())
return err
}
metrics.GetOrRegisterResettingTimer("sliding-window.upload-time", nil).UpdateSince(t1)
fhash := h.Sum(nil)
log.Info("uploaded successfully", "hash", hash, "digest", fmt.Sprintf("%x", fhash), "sleeping", syncDelay)
hashes = append(hashes, uploadResult{hash: hash, digest: fhash})
time.Sleep(time.Duration(syncDelay) * time.Second)
uploadedBytes += filesize * 1000
for i, v := range hashes {
timeout := time.After(time.Duration(timeout) * time.Second)
errored = false
inner:
for {
select {
case <-timeout:
errored = true
log.Error("error retrieving hash. timeout", "hash idx", i, "err", err)
metrics.GetOrRegisterCounter("sliding-window.single.error", nil).Inc(1)
break inner
default:
randIndex := 1 + rand.Intn(len(endpoints)-1)
ruid := uuid.New()[:8]
start := time.Now()
err := fetch(v.hash, endpoints[randIndex], v.digest, ruid)
if err != nil {
continue inner
}
metrics.GetOrRegisterResettingTimer("sliding-window.single.fetch-time", nil).UpdateSince(start)
break inner
}
}
if errored {
break outer
}
networkDepth = i
metrics.GetOrRegisterGauge("sliding-window.network-depth", nil).Update(int64(networkDepth))
}
}
log.Info("sliding window test finished", "errored?", errored, "networkDepth", networkDepth, "networkDepth(kb)", networkDepth*filesize)
log.Info("stats", "uploadedFiles", len(hashes), "uploadedKb", uploadedBytes/1000, "filesizeKb", filesize)
return nil
}
cmd/swarm/swarm-smoke/upload_and_sync.go
浏览文件 @ 7038b573
......@@ -17,76 +17,21 @@
package main
import (
"bytes"
"context"
"crypto/md5"
crand "crypto/rand"
"errors"
"fmt"
"io"
"io/ioutil"
"math/rand"
"net/http"
"net/http/httptrace"
"os"
"sync"
"time"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/metrics"
"github.com/ethereum/go-ethereum/swarm/api"
"github.com/ethereum/go-ethereum/swarm/api/client"
"github.com/ethereum/go-ethereum/swarm/spancontext"
"github.com/ethereum/go-ethereum/swarm/testutil"
opentracing "github.com/opentracing/opentracing-go"
"github.com/pborman/uuid"
cli "gopkg.in/urfave/cli.v1"
)
func generateEndpoints(scheme string, cluster string, app string, from int, to int) {
if cluster == "prod" {
for port := from; port < to; port++ {
endpoints = append(endpoints, fmt.Sprintf("%s://%v.swarm-gateways.net", scheme, port))
}
} else if cluster == "private-internal" {
for port := from; port < to; port++ {
endpoints = append(endpoints, fmt.Sprintf("%s://swarm-private-internal-%v:8500", scheme, port))
}
} else {
for port := from; port < to; port++ {
endpoints = append(endpoints, fmt.Sprintf("%s://%s-%v-%s.stg.swarm-gateways.net", scheme, app, port, cluster))
}
}
if includeLocalhost {
endpoints = append(endpoints, "http://localhost:8500")
}
}
func cliUploadAndSync(c *cli.Context) error {
log.PrintOrigins(true)
log.Root().SetHandler(log.LvlFilterHandler(log.Lvl(verbosity), log.StreamHandler(os.Stdout, log.TerminalFormat(true))))
metrics.GetOrRegisterCounter("upload-and-sync", nil).Inc(1)
errc := make(chan error)
go func() {
errc <- uploadAndSync(c)
}()
select {
case err := <-errc:
if err != nil {
metrics.GetOrRegisterCounter("upload-and-sync.fail", nil).Inc(1)
}
return err
case <-time.After(time.Duration(timeout) * time.Second):
metrics.GetOrRegisterCounter("upload-and-sync.timeout", nil).Inc(1)
return fmt.Errorf("timeout after %v sec", timeout)
}
}
func uploadAndSync(c *cli.Context) error {
defer func(now time.Time) {
totalTime := time.Since(now)
......@@ -96,23 +41,21 @@ func uploadAndSync(c *cli.Context) error {
generateEndpoints(scheme, cluster, appName, from, to)
seed := int(time.Now().UnixNano() / 1e6)
log.Info("uploading to "+endpoints[0]+" and syncing", "seed", seed)
randomBytes := testutil.RandomBytes(seed, filesize*1000)
h := md5.New()
r := io.TeeReader(io.LimitReader(crand.Reader, int64(filesize*1000)), h)
t1 := time.Now()
hash, err := upload(&randomBytes, endpoints[0])
hash, err := upload(r, filesize*1000, endpoints[0])
if err != nil {
log.Error(err.Error())
return err
}
metrics.GetOrRegisterResettingTimer("upload-and-sync.upload-time", nil).UpdateSince(t1)
fhash, err := digest(bytes.NewReader(randomBytes))
if err != nil {
log.Error(err.Error())
return err
}
fhash := h.Sum(nil)
log.Info("uploaded successfully", "hash", hash, "digest", fmt.Sprintf("%x", fhash))
......@@ -161,96 +104,3 @@ func uploadAndSync(c *cli.Context) error {
return nil
}
// fetch is getting the requested `hash` from the `endpoint` and compares it with the `original` file
func fetch(hash string, endpoint string, original []byte, ruid string) error {
ctx, sp := spancontext.StartSpan(context.Background(), "upload-and-sync.fetch")
defer sp.Finish()
log.Trace("http get request", "ruid", ruid, "api", endpoint, "hash", hash)
var tn time.Time
reqUri := endpoint + "/bzz:/" + hash + "/"
req, _ := http.NewRequest("GET", reqUri, nil)
opentracing.GlobalTracer().Inject(
sp.Context(),
opentracing.HTTPHeaders,
opentracing.HTTPHeadersCarrier(req.Header))
trace := client.GetClientTrace("upload-and-sync - http get", "upload-and-sync", ruid, &tn)
req = req.WithContext(httptrace.WithClientTrace(ctx, trace))
transport := http.DefaultTransport
//transport.TLSClientConfig = &tls.Config{InsecureSkipVerify: true}
tn = time.Now()
res, err := transport.RoundTrip(req)
if err != nil {
log.Error(err.Error(), "ruid", ruid)
return err
}
log.Trace("http get response", "ruid", ruid, "api", endpoint, "hash", hash, "code", res.StatusCode, "len", res.ContentLength)
if res.StatusCode != 200 {
err := fmt.Errorf("expected status code %d, got %v", 200, res.StatusCode)
log.Warn(err.Error(), "ruid", ruid)
return err
}
defer res.Body.Close()
rdigest, err := digest(res.Body)
if err != nil {
log.Warn(err.Error(), "ruid", ruid)
return err
}
if !bytes.Equal(rdigest, original) {
err := fmt.Errorf("downloaded imported file md5=%x is not the same as the generated one=%x", rdigest, original)
log.Warn(err.Error(), "ruid", ruid)
return err
}
log.Trace("downloaded file matches random file", "ruid", ruid, "len", res.ContentLength)
return nil
}
// upload is uploading a file `f` to `endpoint` via the `swarm up` cmd
func upload(dataBytes *[]byte, endpoint string) (string, error) {
swarm := client.NewClient(endpoint)
f := &client.File{
ReadCloser: ioutil.NopCloser(bytes.NewReader(*dataBytes)),
ManifestEntry: api.ManifestEntry{
ContentType: "text/plain",
Mode: 0660,
Size: int64(len(*dataBytes)),
},
}
// upload data to bzz:// and retrieve the content-addressed manifest hash, hex-encoded.
return swarm.Upload(f, "", false)
}
func digest(r io.Reader) ([]byte, error) {
h := md5.New()
_, err := io.Copy(h, r)
if err != nil {
return nil, err
}
return h.Sum(nil), nil
}
// generates random data in heap buffer
func generateRandomData(datasize int) ([]byte, error) {
b := make([]byte, datasize)
c, err := crand.Read(b)
if err != nil {
return nil, err
} else if c != datasize {
return nil, errors.New("short read")
}
return b, nil
}
cmd/swarm/swarm-smoke/upload_speed.go
浏览文件 @ 7038b573
......@@ -17,54 +17,18 @@
package main
import (
"bytes"
"crypto/md5"
crand "crypto/rand"
"fmt"
"os"
"io"
"time"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/metrics"
"github.com/ethereum/go-ethereum/swarm/testutil"
cli "gopkg.in/urfave/cli.v1"
)
var endpoint string
//just use the first endpoint
func generateEndpoint(scheme string, cluster string, app string, from int) {
if cluster == "prod" {
endpoint = fmt.Sprintf("%s://%v.swarm-gateways.net", scheme, from)
} else if cluster == "private-internal" {
endpoint = fmt.Sprintf("%s://swarm-private-internal-%v:8500", scheme, from)
} else {
endpoint = fmt.Sprintf("%s://%s-%v-%s.stg.swarm-gateways.net", scheme, app, from, cluster)
}
}
func cliUploadSpeed(c *cli.Context) error {
log.PrintOrigins(true)
log.Root().SetHandler(log.LvlFilterHandler(log.Lvl(verbosity), log.StreamHandler(os.Stdout, log.TerminalFormat(true))))
metrics.GetOrRegisterCounter("upload-speed", nil).Inc(1)
errc := make(chan error)
go func() {
errc <- uploadSpeed(c)
}()
select {
case err := <-errc:
if err != nil {
metrics.GetOrRegisterCounter("upload-speed.fail", nil).Inc(1)
}
return err
case <-time.After(time.Duration(timeout) * time.Second):
metrics.GetOrRegisterCounter("upload-speed.timeout", nil).Inc(1)
return fmt.Errorf("timeout after %v sec", timeout)
}
}
func uploadSpeed(c *cli.Context) error {
defer func(now time.Time) {
totalTime := time.Since(now)
......@@ -73,25 +37,22 @@ func uploadSpeed(c *cli.Context) error {
metrics.GetOrRegisterCounter("upload-speed.total-time", nil).Inc(int64(totalTime))
}(time.Now())
generateEndpoint(scheme, cluster, appName, from)
endpoint := generateEndpoint(scheme, cluster, appName, from)
seed := int(time.Now().UnixNano() / 1e6)
log.Info("uploading to "+endpoint, "seed", seed)
randomBytes := testutil.RandomBytes(seed, filesize*1000)
h := md5.New()
r := io.TeeReader(io.LimitReader(crand.Reader, int64(filesize*1000)), h)
t1 := time.Now()
hash, err := upload(&randomBytes, endpoint)
hash, err := upload(r, filesize*1000, endpoint)
if err != nil {
log.Error(err.Error())
return err
}
metrics.GetOrRegisterCounter("upload-speed.upload-time", nil).Inc(int64(time.Since(t1)))
fhash, err := digest(bytes.NewReader(randomBytes))
if err != nil {
log.Error(err.Error())
return err
}
fhash := h.Sum(nil)
log.Info("uploaded successfully", "hash", hash, "digest", fmt.Sprintf("%x", fhash))
return nil
......
cmd/swarm/swarm-smoke/util.go 0 → 100644
浏览文件 @ 7038b573
// 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 (
"bytes"
"context"
"crypto/md5"
crand "crypto/rand"
"errors"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/http/httptrace"
"os"
"time"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/metrics"
"github.com/ethereum/go-ethereum/swarm/api"
"github.com/ethereum/go-ethereum/swarm/api/client"
"github.com/ethereum/go-ethereum/swarm/spancontext"
opentracing "github.com/opentracing/opentracing-go"
cli "gopkg.in/urfave/cli.v1"
)
var (
commandName = ""
)
func wrapCliCommand(name string, killOnTimeout bool, command func(*cli.Context) error) func(*cli.Context) error {
return func(ctx *cli.Context) error {
log.PrintOrigins(true)
log.Root().SetHandler(log.LvlFilterHandler(log.Lvl(verbosity), log.StreamHandler(os.Stdout, log.TerminalFormat(true))))
defer func(now time.Time) {
totalTime := time.Since(now)
log.Info("total time", "time", totalTime)
metrics.GetOrRegisterCounter(name+".total-time", nil).Inc(int64(totalTime))
}(time.Now())
log.Info("smoke test starting", "task", name, "timeout", timeout)
commandName = name
metrics.GetOrRegisterCounter(name, nil).Inc(1)
errc := make(chan error)
done := make(chan struct{})
if killOnTimeout {
go func() {
<-time.After(time.Duration(timeout) * time.Second)
close(done)
}()
}
go func() {
errc <- command(ctx)
}()
select {
case err := <-errc:
if err != nil {
metrics.GetOrRegisterCounter(fmt.Sprintf("%s.fail", name), nil).Inc(1)
}
return err
case <-done:
metrics.GetOrRegisterCounter(fmt.Sprintf("%s.timeout", name), nil).Inc(1)
return fmt.Errorf("timeout after %v sec", timeout)
}
}
}
func generateEndpoints(scheme string, cluster string, app string, from int, to int) {
if cluster == "prod" {
for port := from; port < to; port++ {
endpoints = append(endpoints, fmt.Sprintf("%s://%v.swarm-gateways.net", scheme, port))
}
} else if cluster == "private-internal" {
for port := from; port < to; port++ {
endpoints = append(endpoints, fmt.Sprintf("%s://swarm-private-internal-%v:8500", scheme, port))
}
} else {
for port := from; port < to; port++ {
endpoints = append(endpoints, fmt.Sprintf("%s://%s-%v-%s.stg.swarm-gateways.net", scheme, app, port, cluster))
}
}
if includeLocalhost {
endpoints = append(endpoints, "http://localhost:8500")
}
}
//just use the first endpoint
func generateEndpoint(scheme string, cluster string, app string, from int) string {
if cluster == "prod" {
return fmt.Sprintf("%s://%v.swarm-gateways.net", scheme, from)
} else if cluster == "private-internal" {
return fmt.Sprintf("%s://swarm-private-internal-%v:8500", scheme, from)
} else {
return fmt.Sprintf("%s://%s-%v-%s.stg.swarm-gateways.net", scheme, app, from, cluster)
}
}
func fetchFeed(topic string, user string, endpoint string, original []byte, ruid string) error {
ctx, sp := spancontext.StartSpan(context.Background(), "feed-and-sync.fetch")
defer sp.Finish()
log.Trace("sleeping", "ruid", ruid)
time.Sleep(3 * time.Second)
log.Trace("http get request (feed)", "ruid", ruid, "api", endpoint, "topic", topic, "user", user)
var tn time.Time
reqUri := endpoint + "/bzz-feed:/?topic=" + topic + "&user=" + user
req, _ := http.NewRequest("GET", reqUri, nil)
opentracing.GlobalTracer().Inject(
sp.Context(),
opentracing.HTTPHeaders,
opentracing.HTTPHeadersCarrier(req.Header))
trace := client.GetClientTrace("feed-and-sync - http get", "feed-and-sync", ruid, &tn)
req = req.WithContext(httptrace.WithClientTrace(ctx, trace))
transport := http.DefaultTransport
//transport.TLSClientConfig = &tls.Config{InsecureSkipVerify: true}
tn = time.Now()
res, err := transport.RoundTrip(req)
if err != nil {
log.Error(err.Error(), "ruid", ruid)
return err
}
log.Trace("http get response (feed)", "ruid", ruid, "api", endpoint, "topic", topic, "user", user, "code", res.StatusCode, "len", res.ContentLength)
if res.StatusCode != 200 {
return fmt.Errorf("expected status code %d, got %v (ruid %v)", 200, res.StatusCode, ruid)
}
defer res.Body.Close()
rdigest, err := digest(res.Body)
if err != nil {
log.Warn(err.Error(), "ruid", ruid)
return err
}
if !bytes.Equal(rdigest, original) {
err := fmt.Errorf("downloaded imported file md5=%x is not the same as the generated one=%x", rdigest, original)
log.Warn(err.Error(), "ruid", ruid)
return err
}
log.Trace("downloaded file matches random file", "ruid", ruid, "len", res.ContentLength)
return nil
}
// fetch is getting the requested `hash` from the `endpoint` and compares it with the `original` file
func fetch(hash string, endpoint string, original []byte, ruid string) error {
ctx, sp := spancontext.StartSpan(context.Background(), "upload-and-sync.fetch")
defer sp.Finish()
log.Trace("http get request", "ruid", ruid, "api", endpoint, "hash", hash)
var tn time.Time
reqUri := endpoint + "/bzz:/" + hash + "/"
req, _ := http.NewRequest("GET", reqUri, nil)
opentracing.GlobalTracer().Inject(
sp.Context(),
opentracing.HTTPHeaders,
opentracing.HTTPHeadersCarrier(req.Header))
trace := client.GetClientTrace(commandName+" - http get", commandName, ruid, &tn)
req = req.WithContext(httptrace.WithClientTrace(ctx, trace))
transport := http.DefaultTransport
//transport.TLSClientConfig = &tls.Config{InsecureSkipVerify: true}
tn = time.Now()
res, err := transport.RoundTrip(req)
if err != nil {
log.Error(err.Error(), "ruid", ruid)
return err
}
log.Trace("http get response", "ruid", ruid, "api", endpoint, "hash", hash, "code", res.StatusCode, "len", res.ContentLength)
if res.StatusCode != 200 {
err := fmt.Errorf("expected status code %d, got %v", 200, res.StatusCode)
log.Warn(err.Error(), "ruid", ruid)
return err
}
defer res.Body.Close()
rdigest, err := digest(res.Body)
if err != nil {
log.Warn(err.Error(), "ruid", ruid)
return err
}
if !bytes.Equal(rdigest, original) {
err := fmt.Errorf("downloaded imported file md5=%x is not the same as the generated one=%x", rdigest, original)
log.Warn(err.Error(), "ruid", ruid)
return err
}
log.Trace("downloaded file matches random file", "ruid", ruid, "len", res.ContentLength)
return nil
}
// upload an arbitrary byte as a plaintext file to `endpoint` using the api client
func upload(r io.Reader, size int, endpoint string) (string, error) {
swarm := client.NewClient(endpoint)
f := &client.File{
ReadCloser: ioutil.NopCloser(r),
ManifestEntry: api.ManifestEntry{
ContentType: "text/plain",
Mode: 0660,
Size: int64(size),
},
}
// upload data to bzz:// and retrieve the content-addressed manifest hash, hex-encoded.
return swarm.Upload(f, "", false)
}
func digest(r io.Reader) ([]byte, error) {
h := md5.New()
_, err := io.Copy(h, r)
if err != nil {
return nil, err
}
return h.Sum(nil), nil
}
// generates random data in heap buffer
func generateRandomData(datasize int) ([]byte, error) {
b := make([]byte, datasize)
c, err := crand.Read(b)
if err != nil {
return nil, err
} else if c != datasize {
return nil, errors.New("short read")
}
return b, nil
}
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