// NewFileReader reads an unencrypted, uncompressed file and
// returns a reader that will yield the data we feed to ipfs.
func NewFileReader(key []byte, r io.Reader, algo compress.AlgorithmType) (or io.Reader, err error) {
pr, pw := io.Pipe()
// Setup the writer part:
wEnc, encErr := encrypt.NewWriter(pw, key)
if encErr != nil {
fmt.Println("Enc w fail", err)
return nil, encErr
}
wZip, zipErr := compress.NewWriter(wEnc, algo)
if zipErr != nil {
fmt.Println("zip w fail", err)
return nil, zipErr
}
// Suck the reader empty and move it to `wZip`.
// Every write to wZip will be available as read in `pr`.
go func() {
defer func() {
if zipCloseErr := wZip.Close(); zipCloseErr != nil {
fmt.Println("wenc close")
err = zipCloseErr
}
if encCloseErr := wEnc.Close(); encCloseErr != nil {
fmt.Println("wenc close")
err = encCloseErr
}
if pwErr := pw.Close(); pwErr != nil {
fmt.Println("pw close")
err = pwErr
}
}()
if _, copyErr := io.Copy(wZip, r); copyErr != nil {
// TODO: yup.
fmt.Println("copy f****d up")
err = copyErr
}
}()
return pr, nil
}
func main() {
opts := parseFlags()
if len(opts.args) != 1 {
dieWithUsage()
}
if opts.compress && opts.decompress {
dieWithUsage()
}
if !opts.compress && !opts.decompress {
dieWithUsage()
}
srcPath := opts.args[0]
algo, err := compress.FromString(opts.algo)
if err != nil {
die(err)
}
src := openSrc(srcPath)
defer src.Close()
dstPath := dstFilename(opts.compress, srcPath, opts.algo)
if opts.useDevNull {
dstPath = os.DevNull
}
dst := openDst(dstPath, opts.forceDstOverwrite)
defer dst.Close()
pass, err := pwd.PromptPassword()
if err != nil {
die(err)
}
key := derivateAesKey([]byte(pass), nil, 32)
if key == nil {
die(err)
}
fmt.Println("Processing...")
nBytes := int64(0)
elapsed := withTime(func() {
if opts.compress {
ew, err := encrypt.NewWriter(dst, key)
if err != nil {
die(err)
}
zw, err := compress.NewWriter(ew, algo)
if err != nil {
die(err)
}
nBytes, err = io.Copy(zw, src)
if err != nil {
die(err)
}
if err := zw.Close(); err != nil {
die(err)
}
if err := ew.Close(); err != nil {
die(err)
}
}
if opts.decompress {
er, err := encrypt.NewReader(src, key)
if err != nil {
die(err)
}
zr := compress.NewReader(er)
nBytes, err = io.Copy(dst, zr)
if err != nil {
die(err)
}
}
})
fmt.Printf(
"%s created, %s processed in %.2f seconds.\n",
dstPath, humanize.Bytes(uint64(nBytes)), elapsed.Seconds(),
)
}
func main() {
opts := parseFlags()
if len(opts.args) != 1 {
dieWithUsage()
}
if opts.compress && opts.decompress {
dieWithUsage()
}
if !opts.compress && !opts.decompress {
dieWithUsage()
}
srcPath := opts.args[0]
algo, err := compress.FromString(opts.algo)
if err != nil {
die(err)
}
src := openSrc(srcPath)
defer src.Close()
dstPath := dstFilename(opts.compress, srcPath, opts.algo)
if opts.useDevNull {
dstPath = os.DevNull
}
dst := openDst(dstPath, opts.forceDstOverwrite)
defer dst.Close()
key := derivateAesKey([]byte("defaultpassword"), nil, 32)
if key == nil {
die(err)
}
var chiper uint16 = aeadCipherAES
if opts.encalgo == "chacha" {
chiper = aeadCipherChaCha
}
if opts.encalgo == "aes" {
chiper = aeadCipherAES
}
if opts.encalgo == "none" {
opts.encrypt = false
}
if opts.compress {
ew := io.WriteCloser(dst)
if opts.encrypt {
ew, err = encrypt.NewWriterWithTypeAndBlockSize(dst, key, chiper, opts.maxblocksize)
if err != nil {
die(err)
}
}
zw, err := compress.NewWriter(ew, algo)
if err != nil {
die(err)
}
_, err = io.Copy(zw, src)
if err != nil {
die(err)
}
if err := zw.Close(); err != nil {
die(err)
}
if err := ew.Close(); err != nil {
die(err)
}
}
if opts.decompress {
var reader io.ReadSeeker = src
if opts.encrypt {
er, err := encrypt.NewReader(src, key)
if err != nil {
die(err)
}
reader = er
}
zr := compress.NewReader(reader)
_, err = io.Copy(dst, zr)
if err != nil {
die(err)
}
}
}