package main
import (
"bytes"
"crypto/md5"
"fmt"
"io"
"io/ioutil"
"os"
"os/exec"
"strings"
"sync"
"time"
"github.com/dexon-foundation/dexon/common/hexutil"
"github.com/dexon-foundation/dexon/crypto"
"github.com/dexon-foundation/dexon/log"
"github.com/dexon-foundation/dexon/metrics"
"github.com/dexon-foundation/dexon/swarm/storage/feed"
"github.com/dexon-foundation/dexon/swarm/testutil"
"github.com/pborman/uuid"
cli "gopkg.in/urfave/cli.v1"
)
const (
feedRandomDataLength = 8
)
func feedUploadAndSyncCmd(ctx *cli.Context, tuid string) error {
errc := make(chan error)
go func() {
errc <- feedUploadAndSync(ctx, tuid)
}()
select {
case err := <-errc:
if err != nil {
metrics.GetOrRegisterCounter(fmt.Sprintf("%s.fail", commandName), nil).Inc(1)
}
return err
case <-time.After(time.Duration(timeout) * time.Second):
metrics.GetOrRegisterCounter(fmt.Sprintf("%s.timeout", commandName), nil).Inc(1)
return fmt.Errorf("timeout after %v sec", timeout)
}
}
func feedUploadAndSync(c *cli.Context, tuid string) error {
log.Info("generating and uploading feeds to " + httpEndpoint(hosts[0]) + " and syncing")
// create a random private key to sign updates with and derive the address
pkFile, err := ioutil.TempFile("", "swarm-feed-smoke-test")
if err != nil {
return err
}
defer pkFile.Close()
defer os.Remove(pkFile.Name())
privkeyHex := "0000000000000000000000000000000000000000000000000000000000001976"
privKey, err := crypto.HexToECDSA(privkeyHex)
if err != nil {
return err
}
user := crypto.PubkeyToAddress(privKey.PublicKey)
userHex := hexutil.Encode(user.Bytes())
// save the private key to a file
_, err = io.WriteString(pkFile, privkeyHex)
if err != nil {
return err
}
// keep hex strings for topic and subtopic
var topicHex string
var subTopicHex string
// and create combination hex topics for bzz-feed retrieval
// xor'ed with topic (zero-value topic if no topic)
var subTopicOnlyHex string
var mergedSubTopicHex string
// generate random topic and subtopic and put a hex on them
topicBytes, err := generateRandomData(feed.TopicLength)
topicHex = hexutil.Encode(topicBytes)
subTopicBytes, err := generateRandomData(8)
subTopicHex = hexutil.Encode(subTopicBytes)
if err != nil {
return err
}
mergedSubTopic, err := feed.NewTopic(subTopicHex, topicBytes)
if err != nil {
return err
}
mergedSubTopicHex = hexutil.Encode(mergedSubTopic[:])
subTopicOnlyBytes, err := feed.NewTopic(subTopicHex, nil)
if err != nil {
return err
}
subTopicOnlyHex = hexutil.Encode(subTopicOnlyBytes[:])
// create feed manifest, topic only
var out bytes.Buffer
cmd := exec.Command("swarm", "--bzzapi", httpEndpoint(hosts[0]), "feed", "create", "--topic", topicHex, "--user", userHex)
cmd.Stdout = &out
log.Debug("create feed manifest topic cmd", "cmd", cmd)
err = cmd.Run()
if err != nil {
return err
}
manifestWithTopic := strings.TrimRight(out.String(), string([]byte{0x0a}))
if len(manifestWithTopic) != 64 {
return fmt.Errorf("unknown feed create manifest hash format (topic): (%d) %s", len(out.String()), manifestWithTopic)
}
log.Debug("create topic feed", "manifest", manifestWithTopic)
out.Reset()
// create feed manifest, subtopic only
cmd = exec.Command("swarm", "--bzzapi", httpEndpoint(hosts[0]), "feed", "create", "--name", subTopicHex, "--user", userHex)
cmd.Stdout = &out
log.Debug("create feed manifest subtopic cmd", "cmd", cmd)
err = cmd.Run()
if err != nil {
return err
}
manifestWithSubTopic := strings.TrimRight(out.String(), string([]byte{0x0a}))
if len(manifestWithSubTopic) != 64 {
return fmt.Errorf("unknown feed create manifest hash format (subtopic): (%d) %s", len(out.String()), manifestWithSubTopic)
}
log.Debug("create subtopic feed", "manifest", manifestWithTopic)
out.Reset()
// create feed manifest, merged topic
cmd = exec.Command("swarm", "--bzzapi", httpEndpoint(hosts[0]), "feed", "create", "--topic", topicHex, "--name", subTopicHex, "--user", userHex)
cmd.Stdout = &out
log.Debug("create feed manifest mergetopic cmd", "cmd", cmd)
err = cmd.Run()
if err != nil {
log.Error(err.Error())
return err
}
manifestWithMergedTopic := strings.TrimRight(out.String(), string([]byte{0x0a}))
if len(manifestWithMergedTopic) != 64 {
return fmt.Errorf("unknown feed create manifest hash format (mergedtopic): (%d) %s", len(out.String()), manifestWithMergedTopic)
}
log.Debug("create mergedtopic feed", "manifest", manifestWithMergedTopic)
out.Reset()
// create test data
data, err := generateRandomData(feedRandomDataLength)
if err != nil {
return err
}
h := md5.New()
h.Write(data)
dataHash := h.Sum(nil)
dataHex := hexutil.Encode(data)
// update with topic
cmd = exec.Command("swarm", "--bzzaccount", pkFile.Name(), "--bzzapi", httpEndpoint(hosts[0]), "feed", "update", "--topic", topicHex, dataHex)
cmd.Stdout = &out
log.Debug("update feed manifest topic cmd", "cmd", cmd)
err = cmd.Run()
if err != nil {
return err
}
log.Debug("feed update topic", "out", out)
out.Reset()
// update with subtopic
cmd = exec.Command("swarm", "--bzzaccount", pkFile.Name(), "--bzzapi", httpEndpoint(hosts[0]), "feed", "update", "--name", subTopicHex, dataHex)
cmd.Stdout = &out
log.Debug("update feed manifest subtopic cmd", "cmd", cmd)
err = cmd.Run()
if err != nil {
return err
}
log.Debug("feed update subtopic", "out", out)
out.Reset()
// update with merged topic
cmd = exec.Command("swarm", "--bzzaccount", pkFile.Name(), "--bzzapi", httpEndpoint(hosts[0]), "feed", "update", "--topic", topicHex, "--name", subTopicHex, dataHex)
cmd.Stdout = &out
log.Debug("update feed manifest merged topic cmd", "cmd", cmd)
err = cmd.Run()
if err != nil {
return err
}
log.Debug("feed update mergedtopic", "out", out)
out.Reset()
time.Sleep(3 * time.Second)
// retrieve the data
wg := sync.WaitGroup{}
for _, host := range hosts {
// raw retrieve, topic only
for _, hex := range []string{topicHex, subTopicOnlyHex, mergedSubTopicHex} {
wg.Add(1)
ruid := uuid.New()[:8]
go func(hex string, endpoint string, ruid string) {
for {
err := fetchFeed(hex, userHex, httpEndpoint(host), dataHash, ruid)
if err != nil {
continue
}
wg.Done()
return
}
}(hex, httpEndpoint(host), ruid)
}
}
wg.Wait()
log.Info("all endpoints synced random data successfully")
// upload test file
log.Info("feed uploading to "+httpEndpoint(hosts[0])+" and syncing", "seed", seed)
randomBytes := testutil.RandomBytes(seed, filesize*1000)
hash, err := upload(randomBytes, httpEndpoint(hosts[0]))
if err != nil {
return err
}
hashBytes, err := hexutil.Decode("0x" + hash)
if err != nil {
return err
}
multihashHex := hexutil.Encode(hashBytes)
fileHash := h.Sum(nil)
log.Info("uploaded successfully", "hash", hash, "digest", fmt.Sprintf("%x", fileHash))
// update file with topic
cmd = exec.Command("swarm", "--bzzaccount", pkFile.Name(), "--bzzapi", httpEndpoint(hosts[0]), "feed", "update", "--topic", topicHex, multihashHex)
cmd.Stdout = &out
err = cmd.Run()
if err != nil {
return err
}
log.Debug("feed update topic", "out", out)
out.Reset()
// update file with subtopic
cmd = exec.Command("swarm", "--bzzaccount", pkFile.Name(), "--bzzapi", httpEndpoint(hosts[0]), "feed", "update", "--name", subTopicHex, multihashHex)
cmd.Stdout = &out
err = cmd.Run()
if err != nil {
return err
}
log.Debug("feed update subtopic", "out", out)
out.Reset()
// update file with merged topic
cmd = exec.Command("swarm", "--bzzaccount", pkFile.Name(), "--bzzapi", httpEndpoint(hosts[0]), "feed", "update", "--topic", topicHex, "--name", subTopicHex, multihashHex)
cmd.Stdout = &out
err = cmd.Run()
if err != nil {
return err
}
log.Debug("feed update mergedtopic", "out", out)
out.Reset()
time.Sleep(3 * time.Second)
for _, host := range hosts {
// manifest retrieve, topic only
for _, url := range []string{manifestWithTopic, manifestWithSubTopic, manifestWithMergedTopic} {
wg.Add(1)
ruid := uuid.New()[:8]
go func(url string, endpoint string, ruid string) {
for {
err := fetch(url, endpoint, fileHash, ruid, "")
if err != nil {
continue
}
wg.Done()
return
}
}(url, httpEndpoint(host), ruid)
}
}
wg.Wait()
log.Info("all endpoints synced random file successfully")
return nil
}
