src/cypherpunks.ru/nncp/toss_test.go

   1 /*
   2 NNCP -- Node to Node copy, utilities for store-and-forward data exchange
   3 Copyright (C) 2016-2017 Sergey Matveev <stargrave@stargrave.org>
   4
   5 This program is free software: you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License as published by
   7 the Free Software Foundation, either version 3 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 */
  18
  19 package nncp
  20
  21 import (
  22         "bytes"
  23         "crypto/rand"
  24         "fmt"
  25         "io"
  26         "io/ioutil"
  27         "os"
  28         "path/filepath"
  29         "strconv"
  30         "testing"
  31         "testing/quick"
  32
  33         "github.com/davecgh/go-xdr/xdr2"
  34         "golang.org/x/crypto/blake2b"
  35 )
  36
  37 var (
  38         TDebug bool = false
  39 )
  40
  41 func dirFiles(path string) []string {
  42         dir, err := os.Open(path)
  43         if err != nil {
  44                 panic(err)
  45         }
  46         defer dir.Close()
  47         names, err := dir.Readdirnames(0)
  48         if err != nil {
  49                 panic(err)
  50         }
  51         return names
  52 }
  53
  54 func TestTossEmail(t *testing.T) {
  55         f := func(recipients [16]uint8) bool {
  56                 for i, recipient := range recipients {
  57                         recipients[i] = recipient % 8
  58                 }
  59                 spool, err := ioutil.TempDir("", "testtoss")
  60                 if err != nil {
  61                         panic(err)
  62                 }
  63                 defer os.RemoveAll(spool)
  64                 nodeOur, err := NewNodeGenerate()
  65                 if err != nil {
  66                         t.Error(err)
  67                         return false
  68                 }
  69                 ctx := Ctx{
  70                         Spool:   spool,
  71                         Self:    nodeOur,
  72                         SelfId:  nodeOur.Id,
  73                         Neigh:   make(map[NodeId]*Node),
  74                         Alias:   make(map[string]*NodeId),
  75                         LogPath: filepath.Join(spool, "log.log"),
  76                         Debug:   TDebug,
  77                 }
  78                 ctx.Neigh[*nodeOur.Id] = nodeOur.Their()
  79                 privates := make(map[uint8]*NodeOur)
  80                 for _, recipient := range recipients {
  81                         if _, exists := privates[recipient]; exists {
  82                                 continue
  83                         }
  84                         our, err := NewNodeGenerate()
  85                         if err != nil {
  86                                 t.Error(err)
  87                                 return false
  88                         }
  89                         privates[recipient] = our
  90                         ctx.Neigh[*our.Id] = our.Their()
  91                 }
  92                 for _, recipient := range recipients {
  93                         if err := ctx.TxMail(
  94                                 ctx.Neigh[*privates[recipient].Id],
  95                                 DefaultNiceMail,
  96                                 "recipient",
  97                                 []byte{123},
  98                                 1<<15,
  99                         ); err != nil {
 100                                 t.Error(err)
 101                                 return false
 102                         }
 103                 }
 104                 for _, recipient := range recipients {
 105                         ctx.Self = privates[recipient]
 106                         rxPath := filepath.Join(spool, ctx.Self.Id.String(), string(TRx))
 107                         os.Rename(filepath.Join(spool, ctx.Self.Id.String(), string(TTx)), rxPath)
 108                         if len(dirFiles(rxPath)) == 0 {
 109                                 continue
 110                         }
 111                         ctx.Toss(ctx.Self.Id, DefaultNiceMail-1, false, false)
 112                         if len(dirFiles(rxPath)) == 0 {
 113                                 return false
 114                         }
 115                         ctx.Neigh[*nodeOur.Id].Sendmail = []string{"/bin/sh", "-c", "false"}
 116                         ctx.Toss(ctx.Self.Id, DefaultNiceMail, false, false)
 117                         if len(dirFiles(rxPath)) == 0 {
 118                                 return false
 119                         }
 120                         ctx.Neigh[*nodeOur.Id].Sendmail = []string{
 121                                 "/bin/sh", "-c",
 122                                 fmt.Sprintf("cat >> %s", filepath.Join(spool, "mbox")),
 123                         }
 124                         ctx.Toss(ctx.Self.Id, DefaultNiceMail, false, false)
 125                         if len(dirFiles(rxPath)) != 0 {
 126                                 return false
 127                         }
 128                 }
 129                 mbox, err := ioutil.ReadFile(filepath.Join(spool, "mbox"))
 130                 if err != nil {
 131                         return false
 132                 }
 133                 expected := make([]byte, 0, 16)
 134                 for i := 0; i < 16; i++ {
 135                         expected = append(expected, 123)
 136                 }
 137                 return bytes.Compare(mbox, expected) == 0
 138         }
 139         if err := quick.Check(f, nil); err != nil {
 140                 t.Error(err)
 141         }
 142 }
 143
 144 func TestTossFile(t *testing.T) {
 145         f := func(fileSizes []uint8) bool {
 146                 if len(fileSizes) == 0 {
 147                         return true
 148                 }
 149                 files := make(map[string][]byte)
 150                 for i, fileSize := range fileSizes {
 151                         data := make([]byte, fileSize)
 152                         if _, err := io.ReadFull(rand.Reader, data); err != nil {
 153                                 panic(err)
 154                         }
 155                         files[strconv.Itoa(i)] = data
 156                 }
 157                 spool, err := ioutil.TempDir("", "testtoss")
 158                 if err != nil {
 159                         panic(err)
 160                 }
 161                 defer os.RemoveAll(spool)
 162                 nodeOur, err := NewNodeGenerate()
 163                 if err != nil {
 164                         t.Error(err)
 165                         return false
 166                 }
 167                 ctx := Ctx{
 168                         Spool:   spool,
 169                         Self:    nodeOur,
 170                         SelfId:  nodeOur.Id,
 171                         Neigh:   make(map[NodeId]*Node),
 172                         Alias:   make(map[string]*NodeId),
 173                         LogPath: filepath.Join(spool, "log.log"),
 174                         Debug:   TDebug,
 175                 }
 176                 ctx.Neigh[*nodeOur.Id] = nodeOur.Their()
 177                 incomingPath := filepath.Join(spool, "incoming")
 178                 for _, fileData := range files {
 179                         checksum := blake2b.Sum256(fileData)
 180                         fileName := ToBase32(checksum[:])
 181                         src := filepath.Join(spool, fileName)
 182                         if err := ioutil.WriteFile(src, fileData, os.FileMode(0600)); err != nil {
 183                                 panic(err)
 184                         }
 185                         if err := ctx.TxFile(
 186                                 ctx.Neigh[*nodeOur.Id],
 187                                 DefaultNiceFile,
 188                                 src,
 189                                 fileName,
 190                                 1<<15,
 191                         ); err != nil {
 192                                 t.Error(err)
 193                                 return false
 194                         }
 195                 }
 196                 rxPath := filepath.Join(spool, ctx.Self.Id.String(), string(TRx))
 197                 os.Rename(filepath.Join(spool, ctx.Self.Id.String(), string(TTx)), rxPath)
 198                 ctx.Toss(ctx.Self.Id, DefaultNiceFile, false, false)
 199                 if len(dirFiles(rxPath)) == 0 {
 200                         return false
 201                 }
 202                 ctx.Neigh[*nodeOur.Id].Incoming = &incomingPath
 203                 ctx.Toss(ctx.Self.Id, DefaultNiceFile, false, false)
 204                 if len(dirFiles(rxPath)) != 0 {
 205                         return false
 206                 }
 207                 for _, fileData := range files {
 208                         checksum := blake2b.Sum256(fileData)
 209                         fileName := ToBase32(checksum[:])
 210                         data, err := ioutil.ReadFile(filepath.Join(incomingPath, fileName))
 211                         if err != nil {
 212                                 panic(err)
 213                         }
 214                         if bytes.Compare(data, fileData) != 0 {
 215                                 return false
 216                         }
 217                 }
 218                 return true
 219         }
 220         if err := quick.Check(f, nil); err != nil {
 221                 t.Error(err)
 222         }
 223 }
 224
 225 func TestTossFileSameName(t *testing.T) {
 226         f := func(filesRaw uint8) bool {
 227                 files := int(filesRaw)%8 + 1
 228                 spool, err := ioutil.TempDir("", "testtoss")
 229                 if err != nil {
 230                         panic(err)
 231                 }
 232                 defer os.RemoveAll(spool)
 233                 nodeOur, err := NewNodeGenerate()
 234                 if err != nil {
 235                         t.Error(err)
 236                         return false
 237                 }
 238                 ctx := Ctx{
 239                         Spool:   spool,
 240                         Self:    nodeOur,
 241                         SelfId:  nodeOur.Id,
 242                         Neigh:   make(map[NodeId]*Node),
 243                         Alias:   make(map[string]*NodeId),
 244                         LogPath: filepath.Join(spool, "log.log"),
 245                         Debug:   TDebug,
 246                 }
 247                 ctx.Neigh[*nodeOur.Id] = nodeOur.Their()
 248                 srcPath := filepath.Join(spool, "junk")
 249                 if err = ioutil.WriteFile(
 250                         srcPath,
 251                         []byte("doesnotmatter"),
 252                         os.FileMode(0600),
 253                 ); err != nil {
 254                         t.Error(err)
 255                         return false
 256                 }
 257                 incomingPath := filepath.Join(spool, "incoming")
 258                 for i := 0; i < files; i++ {
 259                         if err := ctx.TxFile(
 260                                 ctx.Neigh[*nodeOur.Id],
 261                                 DefaultNiceFile,
 262                                 srcPath,
 263                                 "samefile",
 264                                 1<<15,
 265                         ); err != nil {
 266                                 t.Error(err)
 267                                 return false
 268                         }
 269                 }
 270                 rxPath := filepath.Join(spool, ctx.Self.Id.String(), string(TRx))
 271                 os.Rename(filepath.Join(spool, ctx.Self.Id.String(), string(TTx)), rxPath)
 272                 ctx.Neigh[*nodeOur.Id].Incoming = &incomingPath
 273                 ctx.Toss(ctx.Self.Id, DefaultNiceFile, false, false)
 274                 expected := make(map[string]struct{})
 275                 expected["samefile"] = struct{}{}
 276                 for i := 0; i < files-1; i++ {
 277                         expected["samefile"+strconv.Itoa(i)] = struct{}{}
 278                 }
 279                 for _, filename := range dirFiles(incomingPath) {
 280                         if _, exists := expected[filename]; !exists {
 281                                 return false
 282                         }
 283                         delete(expected, filename)
 284                 }
 285                 if len(expected) != 0 {
 286                         return false
 287                 }
 288                 return true
 289         }
 290         if err := quick.Check(f, nil); err != nil {
 291                 t.Error(err)
 292         }
 293 }
 294
 295 func TestTossFreq(t *testing.T) {
 296         f := func(fileSizes []uint8) bool {
 297                 if len(fileSizes) == 0 {
 298                         return true
 299                 }
 300                 spool, err := ioutil.TempDir("", "testtoss")
 301                 if err != nil {
 302                         panic(err)
 303                 }
 304                 defer os.RemoveAll(spool)
 305                 nodeOur, err := NewNodeGenerate()
 306                 if err != nil {
 307                         t.Error(err)
 308                         return false
 309                 }
 310                 ctx := Ctx{
 311                         Spool:   spool,
 312                         Self:    nodeOur,
 313                         SelfId:  nodeOur.Id,
 314                         Neigh:   make(map[NodeId]*Node),
 315                         Alias:   make(map[string]*NodeId),
 316                         LogPath: filepath.Join(spool, "log.log"),
 317                         Debug:   TDebug,
 318                 }
 319                 ctx.Neigh[*nodeOur.Id] = nodeOur.Their()
 320                 files := make(map[string][]byte)
 321                 for i, fileSize := range fileSizes {
 322                         fileData := make([]byte, fileSize)
 323                         if _, err := io.ReadFull(rand.Reader, fileData); err != nil {
 324                                 panic(err)
 325                         }
 326                         fileName := strconv.Itoa(i)
 327                         files[fileName] = fileData
 328                         if err := ctx.TxFreq(
 329                                 ctx.Neigh[*nodeOur.Id],
 330                                 DefaultNiceFreq,
 331                                 fileName,
 332                                 fileName,
 333                                 1<<15,
 334                         ); err != nil {
 335                                 t.Error(err)
 336                                 return false
 337                         }
 338                 }
 339                 rxPath := filepath.Join(spool, ctx.Self.Id.String(), string(TRx))
 340                 txPath := filepath.Join(spool, ctx.Self.Id.String(), string(TTx))
 341                 os.Rename(txPath, rxPath)
 342                 os.MkdirAll(txPath, os.FileMode(0700))
 343                 ctx.Toss(ctx.Self.Id, DefaultNiceFreq, false, false)
 344                 if len(dirFiles(txPath)) != 0 || len(dirFiles(rxPath)) == 0 {
 345                         return false
 346                 }
 347                 ctx.Neigh[*nodeOur.Id].Freq = &spool
 348                 ctx.Toss(ctx.Self.Id, DefaultNiceFreq, false, false)
 349                 if len(dirFiles(txPath)) != 0 || len(dirFiles(rxPath)) == 0 {
 350                         return false
 351                 }
 352                 for fileName, fileData := range files {
 353                         if err := ioutil.WriteFile(
 354                                 filepath.Join(spool, fileName),
 355                                 fileData,
 356                                 os.FileMode(0600),
 357                         ); err != nil {
 358                                 panic(err)
 359                         }
 360                 }
 361                 ctx.Toss(ctx.Self.Id, DefaultNiceFreq, false, false)
 362                 if len(dirFiles(txPath)) == 0 || len(dirFiles(rxPath)) != 0 {
 363                         return false
 364                 }
 365                 for job := range ctx.Jobs(ctx.Self.Id, TTx) {
 366                         var buf bytes.Buffer
 367                         _, _, err := PktEncRead(ctx.Self, ctx.Neigh, job.Fd, &buf)
 368                         if err != nil {
 369                                 t.Error(err)
 370                                 return false
 371                         }
 372                         var pkt Pkt
 373                         if _, err = xdr.Unmarshal(&buf, &pkt); err != nil {
 374                                 t.Error(err)
 375                                 return false
 376                         }
 377                         dst := string(pkt.Path[:int(pkt.PathLen)])
 378                         if bytes.Compare(buf.Bytes(), files[dst]) != 0 {
 379                                 return false
 380                         }
 381                 }
 382                 return true
 383         }
 384         if err := quick.Check(f, nil); err != nil {
 385                 t.Error(err)
 386         }
 387 }
 388
 389 func TestTossTrns(t *testing.T) {
 390         f := func(datumLens []uint8) bool {
 391                 if len(datumLens) == 0 {
 392                         return true
 393                 }
 394                 datum := make(map[int][]byte)
 395                 for i, datumLen := range datumLens {
 396                         datumLen += 64
 397                         data := make([]byte, datumLen)
 398                         if _, err := io.ReadFull(rand.Reader, data); err != nil {
 399                                 panic(err)
 400                         }
 401                         datum[i] = data
 402                 }
 403                 spool, err := ioutil.TempDir("", "testtoss")
 404                 if err != nil {
 405                         panic(err)
 406                 }
 407                 defer os.RemoveAll(spool)
 408                 nodeOur, err := NewNodeGenerate()
 409                 if err != nil {
 410                         t.Error(err)
 411                         return false
 412                 }
 413                 ctx := Ctx{
 414                         Spool:   spool,
 415                         Self:    nodeOur,
 416                         SelfId:  nodeOur.Id,
 417                         Neigh:   make(map[NodeId]*Node),
 418                         Alias:   make(map[string]*NodeId),
 419                         LogPath: filepath.Join(spool, "log.log"),
 420                         Debug:   TDebug,
 421                 }
 422                 ctx.Neigh[*nodeOur.Id] = nodeOur.Their()
 423                 rxPath := filepath.Join(spool, ctx.Self.Id.String(), string(TRx))
 424                 os.MkdirAll(rxPath, os.FileMode(0700))
 425                 txPath := filepath.Join(spool, ctx.Self.Id.String(), string(TTx))
 426                 os.MkdirAll(txPath, os.FileMode(0700))
 427                 for _, data := range datum {
 428                         pktTrans := Pkt{
 429                                 Magic:   MagicNNCPPv1,
 430                                 Type:    PktTypeTrns,
 431                                 PathLen: blake2b.Size256,
 432                                 Path:    new([MaxPathSize]byte),
 433                         }
 434                         copy(pktTrans.Path[:], nodeOur.Id[:])
 435                         var dst bytes.Buffer
 436                         if err := PktEncWrite(
 437                                 ctx.Self,
 438                                 ctx.Neigh[*nodeOur.Id],
 439                                 &pktTrans,
 440                                 123,
 441                                 int64(len(data)),
 442                                 0,
 443                                 bytes.NewReader(data),
 444                                 &dst,
 445                         ); err != nil {
 446                                 t.Error(err)
 447                                 return false
 448                         }
 449                         checksum := blake2b.Sum256(dst.Bytes())
 450                         if err := ioutil.WriteFile(
 451                                 filepath.Join(rxPath, ToBase32(checksum[:])),
 452                                 dst.Bytes(),
 453                                 os.FileMode(0600),
 454                         ); err != nil {
 455                                 panic(err)
 456                         }
 457                 }
 458                 ctx.Toss(ctx.Self.Id, 123, false, false)
 459                 if len(dirFiles(rxPath)) != 0 {
 460                         return false
 461                 }
 462                 for _, filename := range dirFiles(txPath) {
 463                         dataRead, err := ioutil.ReadFile(filepath.Join(txPath, filename))
 464                         if err != nil {
 465                                 panic(err)
 466                         }
 467                         for k, data := range datum {
 468                                 if bytes.Compare(dataRead, data) == 0 {
 469                                         delete(datum, k)
 470                                         break
 471                                 }
 472                         }
 473                 }
 474                 if len(datum) > 0 {
 475                         return false
 476                 }
 477                 return true
 478         }
 479         if err := quick.Check(f, nil); err != nil {
 480                 t.Error(err)
 481         }
 482 }