/*
NNCP -- Node to Node copy, utilities for store-and-forward data exchange
-Copyright (C) 2016-2019 Sergey Matveev <stargrave@stargrave.org>
+Copyright (C) 2016-2021 Sergey Matveev <stargrave@stargrave.org>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
)
const (
+ MaxFileSize = 1 << 62
+
TarBlockSize = 512
TarExt = ".tar"
)
nice uint8,
size, minSize int64,
src io.Reader,
+ pktName string,
) (*Node, error) {
hops := make([]*Node, 0, 1+len(node.Via))
hops = append(hops, node)
go func(size int64, src io.Reader, dst io.WriteCloser) {
ctx.LogD("tx", SDS{
"node": hops[0].Id,
- "nice": strconv.Itoa(int(nice)),
- "size": strconv.FormatInt(size, 10),
+ "nice": int(nice),
+ "size": size,
}, "wrote")
errs <- PktEncWrite(ctx.Self, hops[0], pkt, nice, size, padSize, src, dst)
- dst.Close()
+ dst.Close() // #nosec G104
}(curSize, src, pipeW)
curSize = PktEncOverhead + PktSizeOverhead + sizeWithTags(PktOverhead+curSize) + padSize
go func(node *Node, pkt *Pkt, size int64, src io.Reader, dst io.WriteCloser) {
ctx.LogD("tx", SDS{
"node": node.Id,
- "nice": strconv.Itoa(int(nice)),
- "size": strconv.FormatInt(size, 10),
+ "nice": int(nice),
+ "size": size,
}, "trns wrote")
errs <- PktEncWrite(ctx.Self, node, pkt, nice, size, 0, src, dst)
- dst.Close()
+ dst.Close() // #nosec G104
}(hops[i], pktTrns, curSize, pipeRPrev, pipeW)
curSize = PktEncOverhead + PktSizeOverhead + sizeWithTags(PktOverhead+curSize)
}
go func() {
- _, err := io.Copy(tmp.W, pipeR)
+ _, err := CopyProgressed(
+ tmp.W, pipeR, "Tx",
+ SDS{"pkt": pktName, "fullsize": curSize},
+ ctx.ShowPrgrs,
+ )
errs <- err
}()
for i := 0; i <= len(hops); i++ {
err = <-errs
if err != nil {
- tmp.Fd.Close()
+ tmp.Fd.Close() // #nosec G104
return nil, err
}
}
nodePath := filepath.Join(ctx.Spool, lastNode.Id.String())
err = tmp.Commit(filepath.Join(nodePath, string(TTx)))
- os.Symlink(nodePath, filepath.Join(ctx.Spool, lastNode.Name))
+ os.Symlink(nodePath, filepath.Join(ctx.Spool, lastNode.Name)) // #nosec G104
return lastNode, err
}
func (dc DummyCloser) Close() error { return nil }
-func prepareTxFile(srcPath string) (reader io.Reader, closer io.Closer, fileSize int64, archived bool, rerr error) {
- if srcPath == "-" {
- // Read content from stdin, saving to temporary file, encrypting
- // on the fly
- src, err := ioutil.TempFile("", "nncp-file")
- if err != nil {
- rerr = err
- return
- }
- os.Remove(src.Name())
- tmpW := bufio.NewWriter(src)
- tmpKey := make([]byte, chacha20poly1305.KeySize)
- if _, rerr = rand.Read(tmpKey[:]); rerr != nil {
- return
- }
- aead, err := chacha20poly1305.New(tmpKey)
- if err != nil {
- rerr = err
- return
- }
- nonce := make([]byte, aead.NonceSize())
- written, err := aeadProcess(aead, nonce, true, bufio.NewReader(os.Stdin), tmpW)
- if err != nil {
- rerr = err
- return
- }
- fileSize = int64(written)
- if err = tmpW.Flush(); err != nil {
- return
+func throughTmpFile(r io.Reader) (
+ reader io.Reader,
+ closer io.Closer,
+ fileSize int64,
+ rerr error,
+) {
+ src, err := ioutil.TempFile("", "nncp-file")
+ if err != nil {
+ rerr = err
+ return
+ }
+ os.Remove(src.Name()) // #nosec G104
+ tmpW := bufio.NewWriter(src)
+ tmpKey := make([]byte, chacha20poly1305.KeySize)
+ if _, rerr = rand.Read(tmpKey[:]); rerr != nil {
+ return
+ }
+ aead, err := chacha20poly1305.New(tmpKey)
+ if err != nil {
+ rerr = err
+ return
+ }
+ nonce := make([]byte, aead.NonceSize())
+ written, err := aeadProcess(aead, nonce, true, r, tmpW)
+ if err != nil {
+ rerr = err
+ return
+ }
+ fileSize = int64(written)
+ if err = tmpW.Flush(); err != nil {
+ rerr = err
+ return
+ }
+ if _, err = src.Seek(0, io.SeekStart); err != nil {
+ rerr = err
+ return
+ }
+ r, w := io.Pipe()
+ go func() {
+ if _, err := aeadProcess(aead, nonce, false, bufio.NewReader(src), w); err != nil {
+ w.CloseWithError(err) // #nosec G104
}
- src.Seek(0, io.SeekStart)
- r, w := io.Pipe()
- go func() {
- if _, err := aeadProcess(aead, nonce, false, bufio.NewReader(src), w); err != nil {
- w.CloseWithError(err)
- }
- }()
- reader = r
- closer = src
+ }()
+ reader = r
+ closer = src
+ return
+}
+
+func prepareTxFile(srcPath string) (
+ reader io.Reader,
+ closer io.Closer,
+ fileSize int64,
+ archived bool,
+ rerr error,
+) {
+ if srcPath == "-" {
+ reader, closer, fileSize, rerr = throughTmpFile(bufio.NewReader(os.Stdin))
return
}
closer = DummyCloser{}
fileSize += 2 * TarBlockSize // termination block
- go func() {
+ go func() error {
tarWr := tar.NewWriter(w)
hdr := tar.Header{
Typeflag: tar.TypeDir,
hdr.Name = basePath + e.path[len(rootPath):]
hdr.ModTime = e.modTime
if err = tarWr.WriteHeader(&hdr); err != nil {
- w.CloseWithError(err)
+ return w.CloseWithError(err)
}
}
hdr.Typeflag = tar.TypeReg
hdr.ModTime = e.modTime
hdr.Size = e.size
if err = tarWr.WriteHeader(&hdr); err != nil {
- w.CloseWithError(err)
+ return w.CloseWithError(err)
}
fd, err := os.Open(e.path)
if err != nil {
- w.CloseWithError(err)
+ fd.Close() // #nosec G104
+ return w.CloseWithError(err)
}
- _, err = io.Copy(tarWr, bufio.NewReader(fd))
- if err != nil {
- w.CloseWithError(err)
+ if _, err = io.Copy(tarWr, bufio.NewReader(fd)); err != nil {
+ fd.Close() // #nosec G104
+ return w.CloseWithError(err)
}
- fd.Close()
+ fd.Close() // #nosec G104
}
- tarWr.Close()
- w.Close()
+ if err = tarWr.Close(); err != nil {
+ return w.CloseWithError(err)
+ }
+ return w.Close()
}()
return
}
-func (ctx *Ctx) TxFile(node *Node, nice uint8, srcPath, dstPath string, minSize int64) error {
- dstPathSpecified := false
- if dstPath == "" {
- if srcPath == "-" {
- return errors.New("Must provide destination filename")
- }
- dstPath = filepath.Base(srcPath)
- } else {
- dstPathSpecified = true
- }
- dstPath = filepath.Clean(dstPath)
- if filepath.IsAbs(dstPath) {
- return errors.New("Relative destination path required")
- }
- reader, closer, fileSize, archived, err := prepareTxFile(srcPath)
- if closer != nil {
- defer closer.Close()
- }
- if err != nil {
- return err
- }
- if archived && !dstPathSpecified {
- dstPath += TarExt
- }
- pkt, err := NewPkt(PktTypeFile, nice, []byte(dstPath))
- if err != nil {
- return err
- }
- _, err = ctx.Tx(node, pkt, nice, fileSize, minSize, reader)
- sds := SDS{
- "type": "file",
- "node": node.Id,
- "nice": strconv.Itoa(int(nice)),
- "src": srcPath,
- "dst": dstPath,
- "size": strconv.FormatInt(fileSize, 10),
- }
- if err == nil {
- ctx.LogI("tx", sds, "sent")
- } else {
- sds["err"] = err
- ctx.LogE("tx", sds, "sent")
- }
- return err
-}
-
-func (ctx *Ctx) TxFileChunked(
+func (ctx *Ctx) TxFile(
node *Node,
nice uint8,
srcPath, dstPath string,
- minSize int64,
chunkSize int64,
+ minSize, maxSize int64,
) error {
dstPathSpecified := false
if dstPath == "" {
if err != nil {
return err
}
+ if fileSize > maxSize {
+ return errors.New("Too big than allowed")
+ }
if archived && !dstPathSpecified {
dstPath += TarExt
}
if err != nil {
return err
}
- _, err = ctx.Tx(node, pkt, nice, fileSize, minSize, reader)
+ _, err = ctx.Tx(node, pkt, nice, fileSize, minSize, reader, dstPath)
sds := SDS{
"type": "file",
"node": node.Id,
- "nice": strconv.Itoa(int(nice)),
+ "nice": int(nice),
"src": srcPath,
"dst": dstPath,
- "size": strconv.FormatInt(fileSize, 10),
+ "size": fileSize,
}
if err == nil {
ctx.LogI("tx", sds, "sent")
} else {
- sds["err"] = err
- ctx.LogE("tx", sds, "sent")
+ ctx.LogE("tx", sds, err, "sent")
}
return err
}
sizeToSend,
minSize,
io.TeeReader(reader, hsh),
+ path,
)
sds := SDS{
"type": "file",
"node": node.Id,
- "nice": strconv.Itoa(int(nice)),
+ "nice": int(nice),
"src": srcPath,
"dst": path,
- "size": strconv.FormatInt(sizeToSend, 10),
+ "size": sizeToSend,
}
if err == nil {
ctx.LogI("tx", sds, "sent")
} else {
- sds["err"] = err
- ctx.LogE("tx", sds, "sent")
+ ctx.LogE("tx", sds, err, "sent")
return err
}
hsh.Sum(metaPkt.Checksums[chunkNum][:0])
return err
}
metaPktSize := int64(metaBuf.Len())
- _, err = ctx.Tx(node, pkt, nice, metaPktSize, minSize, &metaBuf)
+ _, err = ctx.Tx(node, pkt, nice, metaPktSize, minSize, &metaBuf, path)
sds := SDS{
"type": "file",
"node": node.Id,
- "nice": strconv.Itoa(int(nice)),
+ "nice": int(nice),
"src": srcPath,
"dst": path,
- "size": strconv.FormatInt(metaPktSize, 10),
+ "size": metaPktSize,
}
if err == nil {
ctx.LogI("tx", sds, "sent")
} else {
- sds["err"] = err
- ctx.LogE("tx", sds, "sent")
+ ctx.LogE("tx", sds, err, "sent")
}
return err
}
}
src := strings.NewReader(dstPath)
size := int64(src.Len())
- _, err = ctx.Tx(node, pkt, nice, size, minSize, src)
+ _, err = ctx.Tx(node, pkt, nice, size, minSize, src, srcPath)
sds := SDS{
"type": "freq",
"node": node.Id,
- "nice": strconv.Itoa(int(nice)),
- "replynice": strconv.Itoa(int(replyNice)),
+ "nice": int(nice),
+ "replynice": int(replyNice),
"src": srcPath,
"dst": dstPath,
}
if err == nil {
ctx.LogI("tx", sds, "sent")
} else {
- sds["err"] = err
- ctx.LogE("tx", sds, "sent")
+ ctx.LogE("tx", sds, err, "sent")
}
return err
}
args []string,
in io.Reader,
minSize int64,
+ useTmp bool,
+ noCompress bool,
) error {
path := make([][]byte, 0, 1+len(args))
path = append(path, []byte(handle))
for _, arg := range args {
path = append(path, []byte(arg))
}
- pkt, err := NewPkt(PktTypeExec, replyNice, bytes.Join(path, []byte{0}))
- if err != nil {
- return err
+ pktType := PktTypeExec
+ if noCompress {
+ pktType = PktTypeExecFat
}
- var compressed bytes.Buffer
- compressor, err := zstd.NewWriter(
- &compressed,
- zstd.WithEncoderLevel(zstd.SpeedDefault),
- )
+ pkt, err := NewPkt(pktType, replyNice, bytes.Join(path, []byte{0}))
if err != nil {
return err
}
- _, err = io.Copy(compressor, in)
- compressor.Close()
- if err != nil {
- return err
+ var size int64
+
+ if !noCompress && !useTmp {
+ var compressed bytes.Buffer
+ compressor, err := zstd.NewWriter(
+ &compressed,
+ zstd.WithEncoderLevel(zstd.SpeedDefault),
+ )
+ if err != nil {
+ return err
+ }
+ if _, err = io.Copy(compressor, in); err != nil {
+ compressor.Close() // #nosec G104
+ return err
+ }
+ if err = compressor.Close(); err != nil {
+ return err
+ }
+ size = int64(compressed.Len())
+ _, err = ctx.Tx(node, pkt, nice, size, minSize, &compressed, handle)
}
- size := int64(compressed.Len())
- _, err = ctx.Tx(node, pkt, nice, size, minSize, &compressed)
+ if noCompress && !useTmp {
+ var data bytes.Buffer
+ if _, err = io.Copy(&data, in); err != nil {
+ return err
+ }
+ size = int64(data.Len())
+ _, err = ctx.Tx(node, pkt, nice, size, minSize, &data, handle)
+ }
+ if !noCompress && useTmp {
+ r, w := io.Pipe()
+ compressor, err := zstd.NewWriter(w, zstd.WithEncoderLevel(zstd.SpeedDefault))
+ if err != nil {
+ return err
+ }
+ copyErr := make(chan error)
+ go func() {
+ _, err := io.Copy(compressor, in)
+ if err != nil {
+ compressor.Close() // #nosec G104
+ copyErr <- err
+ }
+ err = compressor.Close()
+ w.Close()
+ copyErr <- err
+ }()
+ tmpReader, closer, fileSize, err := throughTmpFile(r)
+ if closer != nil {
+ defer closer.Close()
+ }
+ if err != nil {
+ return err
+ }
+ err = <-copyErr
+ if err != nil {
+ return err
+ }
+ size = fileSize
+ _, err = ctx.Tx(node, pkt, nice, size, minSize, tmpReader, handle)
+ }
+ if noCompress && useTmp {
+ tmpReader, closer, fileSize, err := throughTmpFile(in)
+ if closer != nil {
+ defer closer.Close()
+ }
+ if err != nil {
+ return err
+ }
+ size = fileSize
+ _, err = ctx.Tx(node, pkt, nice, size, minSize, tmpReader, handle)
+ }
+
sds := SDS{
"type": "exec",
"node": node.Id,
- "nice": strconv.Itoa(int(nice)),
- "replynice": strconv.Itoa(int(replyNice)),
+ "nice": int(nice),
+ "replynice": int(replyNice),
"dst": strings.Join(append([]string{handle}, args...), " "),
- "size": strconv.FormatInt(size, 10),
+ "size": size,
}
if err == nil {
ctx.LogI("tx", sds, "sent")
} else {
- sds["err"] = err
- ctx.LogE("tx", sds, "sent")
+ ctx.LogE("tx", sds, err, "sent")
}
return err
}
sds := SDS{
"type": "trns",
"node": node.Id,
- "nice": strconv.Itoa(int(nice)),
- "size": strconv.FormatInt(size, 10),
+ "nice": int(nice),
+ "size": size,
}
ctx.LogD("tx", sds, "taken")
if !ctx.IsEnoughSpace(size) {
err := errors.New("is not enough space")
- ctx.LogE("tx", sds, err.Error())
+ ctx.LogE("tx", sds, err, err.Error())
return err
}
tmp, err := ctx.NewTmpFileWHash()
if err != nil {
return err
}
- if _, err = io.Copy(tmp.W, src); err != nil {
+ if _, err = CopyProgressed(
+ tmp.W, src, "Tx trns",
+ SDS{"pkt": node.Id.String(), "fullsize": size},
+ ctx.ShowPrgrs,
+ ); err != nil {
return err
}
nodePath := filepath.Join(ctx.Spool, node.Id.String())
if err == nil {
ctx.LogI("tx", sds, "sent")
} else {
- sds["err"] = err
- ctx.LogI("tx", sds, "sent")
+ ctx.LogI("tx", SdsAdd(sds, SDS{"err": err}), "sent")
}
- os.Symlink(nodePath, filepath.Join(ctx.Spool, node.Name))
+ os.Symlink(nodePath, filepath.Join(ctx.Spool, node.Name)) // #nosec G104
return err
}