ceremonyclient/go-libp2p-blossomsub/validation_test.go

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package blossomsub
import (
"bytes"
"context"
"fmt"
"sync"
"testing"
"time"
"github.com/libp2p/go-libp2p/core/peer"
)
func TestRegisterUnregisterValidator(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
hosts := getNetHosts(t, ctx, 1)
psubs := getPubsubs(ctx, hosts)
err := psubs[0].RegisterBitmaskValidator([]byte{0xf0, 0x00}, func(context.Context, peer.ID, *Message) bool {
return true
})
if err != nil {
t.Fatal(err)
}
err = psubs[0].UnregisterBitmaskValidator([]byte{0xf0, 0x00})
if err != nil {
t.Fatal(err)
}
err = psubs[0].UnregisterBitmaskValidator([]byte{0xf0, 0x00})
if err == nil {
t.Fatal("Unregistered bogus bitmask validator")
}
}
func TestRegisterValidatorEx(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
hosts := getNetHosts(t, ctx, 3)
psubs := getPubsubs(ctx, hosts)
err := psubs[0].RegisterBitmaskValidator([]byte{0x7e, 0x57},
Validator(func(context.Context, peer.ID, *Message) bool {
return true
}))
if err != nil {
t.Fatal(err)
}
err = psubs[1].RegisterBitmaskValidator([]byte{0x7e, 0x57},
ValidatorEx(func(context.Context, peer.ID, *Message) ValidationResult {
return ValidationAccept
}))
if err != nil {
t.Fatal(err)
}
err = psubs[2].RegisterBitmaskValidator([]byte{0x7e, 0x57}, "bogus")
if err == nil {
t.Fatal("expected error")
}
}
func TestValidate(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
hosts := getNetHosts(t, ctx, 2)
psubs := getPubsubs(ctx, hosts)
connect(t, hosts[0], hosts[1])
bitmask := []byte{0xf0, 0x0b, 0xa1, 0x20}
err := psubs[1].RegisterBitmaskValidator(bitmask, func(ctx context.Context, from peer.ID, msg *Message) bool {
return !bytes.Contains(msg.Data, []byte("illegal"))
})
if err != nil {
t.Fatal(err)
}
sub, err := psubs[1].Subscribe(bitmask)
if err != nil {
t.Fatal(err)
}
time.Sleep(time.Millisecond * 50)
msgs := []struct {
msg []byte
validates bool
}{
{msg: []byte("this is a legal message"), validates: true},
{msg: []byte("there also is nothing controversial about this message"), validates: true},
{msg: []byte("openly illegal content will be censored"), validates: false},
{msg: []byte("but subversive actors will use leetspeek to spread 1ll3g4l content"), validates: true},
}
for _, tc := range msgs {
err := psubs[0].Publish(bitmask, tc.msg)
if err != nil {
t.Fatal(err)
}
select {
case msg := <-sub.ch:
if !tc.validates {
t.Log(msg)
t.Error("expected message validation to filter out the message")
}
case <-time.After(333 * time.Millisecond):
if tc.validates {
t.Error("expected message validation to accept the message")
}
}
}
}
func TestValidate2(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
hosts := getNetHosts(t, ctx, 1)
psubs := getPubsubs(ctx, hosts)
bitmask := []byte{0xf0, 0x0b, 0xa1, 0x20}
err := psubs[0].RegisterBitmaskValidator(bitmask, func(ctx context.Context, from peer.ID, msg *Message) bool {
return !bytes.Contains(msg.Data, []byte("illegal"))
})
if err != nil {
t.Fatal(err)
}
msgs := []struct {
msg []byte
validates bool
}{
{msg: []byte("this is a legal message"), validates: true},
{msg: []byte("there also is nothing controversial about this message"), validates: true},
{msg: []byte("openly illegal content will be censored"), validates: false},
{msg: []byte("but subversive actors will use leetspeek to spread 1ll3g4l content"), validates: true},
}
for _, tc := range msgs {
err := psubs[0].Publish(bitmask, tc.msg)
if tc.validates {
if err != nil {
t.Fatal(err)
}
} else {
if err == nil {
t.Fatal("expected validation to fail for this message")
}
}
}
}
func TestValidateOverload(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
type msg struct {
msg []byte
validates bool
}
tcs := []struct {
msgs []msg
maxConcurrency int
}{
{
maxConcurrency: 10,
msgs: []msg{
{msg: []byte("this is a legal message"), validates: true},
{msg: []byte("but subversive actors will use leetspeek to spread 1ll3g4l content"), validates: true},
{msg: []byte("there also is nothing controversial about this message"), validates: true},
{msg: []byte("also fine"), validates: true},
{msg: []byte("still, all good"), validates: true},
{msg: []byte("this is getting boring"), validates: true},
{msg: []byte([]byte{0xf0, 0x00}), validates: true},
{msg: []byte([]byte{0xf0, 0x0b, 0xa1, 0x20}), validates: true},
{msg: []byte("foofoo"), validates: true},
{msg: []byte("barfoo"), validates: true},
{msg: []byte("oh no!"), validates: false},
},
},
{
maxConcurrency: 2,
msgs: []msg{
{msg: []byte("this is a legal message"), validates: true},
{msg: []byte("but subversive actors will use leetspeek to spread 1ll3g4l content"), validates: true},
{msg: []byte("oh no!"), validates: false},
},
},
}
for tci, tc := range tcs {
t.Run(fmt.Sprintf("%d", tci), func(t *testing.T) {
hosts := getNetHosts(t, ctx, 2)
psubs := getPubsubs(ctx, hosts)
connect(t, hosts[0], hosts[1])
bitmask := []byte{0xf0, 0x0b, 0xa1, 0x20}
block := make(chan struct{})
err := psubs[1].RegisterBitmaskValidator(bitmask,
func(ctx context.Context, from peer.ID, msg *Message) bool {
<-block
return true
},
WithValidatorConcurrency(tc.maxConcurrency))
if err != nil {
t.Fatal(err)
}
sub, err := psubs[1].Subscribe(bitmask)
if err != nil {
t.Fatal(err)
}
time.Sleep(time.Millisecond * 50)
if len(tc.msgs) != tc.maxConcurrency+1 {
t.Fatalf("expected number of messages sent to be maxConcurrency+1. Got %d, expected %d", len(tc.msgs), tc.maxConcurrency+1)
}
p := psubs[0]
var wg sync.WaitGroup
wg.Add(1)
go func() {
for _, tmsg := range tc.msgs {
select {
case msg := <-sub.ch:
if !tmsg.validates {
t.Log(msg)
t.Error("expected message validation to drop the message because all validator goroutines are taken")
}
case <-time.After(time.Second):
if tmsg.validates {
t.Error("expected message validation to accept the message")
}
}
}
wg.Done()
}()
for _, tmsg := range tc.msgs {
err := p.Publish(bitmask, tmsg.msg)
if err != nil {
t.Fatal(err)
}
}
// wait a bit before unblocking the validator goroutines
time.Sleep(500 * time.Millisecond)
close(block)
wg.Wait()
})
}
}
func TestValidateAssortedOptions(t *testing.T) {
// this test adds coverage for various options that are not covered in other tests
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
hosts := getNetHosts(t, ctx, 10)
psubs := getPubsubs(ctx, hosts,
WithValidateQueueSize(10),
WithValidateThrottle(10),
WithValidateWorkers(10))
sparseConnect(t, hosts)
for _, psub := range psubs {
err := psub.RegisterBitmaskValidator([]byte{0xff, 0x00, 0x00, 0x00},
func(context.Context, peer.ID, *Message) bool {
return true
},
WithValidatorTimeout(100*time.Millisecond))
if err != nil {
t.Fatal(err)
}
err = psub.RegisterBitmaskValidator([]byte{0x00, 0xff, 0x00, 0x00},
func(context.Context, peer.ID, *Message) bool {
return true
},
WithValidatorInline(true))
if err != nil {
t.Fatal(err)
}
}
var subs1, subs2 []*Subscription
for _, ps := range psubs {
sub, err := ps.Subscribe([]byte{0xff, 0x00, 0x00, 0x00})
if err != nil {
t.Fatal(err)
}
subs1 = append(subs1, sub)
sub, err = ps.Subscribe([]byte{0x00, 0xff, 0x00, 0x00})
if err != nil {
t.Fatal(err)
}
subs2 = append(subs2, sub)
}
time.Sleep(time.Second)
for i := 0; i < 10; i++ {
msg := []byte(fmt.Sprintf("message %d", i))
psubs[i].Publish([]byte{0xff, 0x00, 0x00, 0x00}, msg)
for _, sub := range subs1 {
assertReceive(t, sub, msg)
}
psubs[i].Publish([]byte{0x00, 0xff, 0x00, 0x00}, msg)
for _, sub := range subs2 {
assertReceive(t, sub, msg)
}
}
}