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Merge pull request #210 from a1phyr/multiple_refactors

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Multiple refactors
This commit is contained in:
Chris Hennick 2024-07-20 01:29:39 +00:00 • committed by GitHub
commit a60bd79826
Signed by: DevComp
GPG key ID: B5690EEEBB952194
5 changed files with 154 additions and 266 deletions
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88
src/compression.rs
View file

@ -1,6 +1,6 @@
//! Possible ZIP compression methods.
use std::fmt;
use std::{fmt, io};
#[allow(deprecated)]
/// Identifies the storage format used to compress a file within a ZIP archive.
@ -189,6 +189,92 @@ pub const SUPPORTED_COMPRESSION_METHODS: &[CompressionMethod] = &[
CompressionMethod::Zstd,
];
pub(crate) enum Decompressor<R: io::BufRead> {
Stored(R),
#[cfg(feature = "_deflate-any")]
Deflated(flate2::bufread::DeflateDecoder<R>),
#[cfg(feature = "deflate64")]
Deflate64(deflate64::Deflate64Decoder<R>),
#[cfg(feature = "bzip2")]
Bzip2(bzip2::bufread::BzDecoder<R>),
#[cfg(feature = "zstd")]
Zstd(zstd::Decoder<'static, R>),
#[cfg(feature = "lzma")]
Lzma(Box<crate::read::lzma::LzmaDecoder<R>>),
#[cfg(feature = "xz")]
Xz(crate::read::xz::XzDecoder<R>),
}
impl<R: io::BufRead> io::Read for Decompressor<R> {
fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
match self {
Decompressor::Stored(r) => r.read(buf),
#[cfg(feature = "_deflate-any")]
Decompressor::Deflated(r) => r.read(buf),
#[cfg(feature = "deflate64")]
Decompressor::Deflate64(r) => r.read(buf),
#[cfg(feature = "bzip2")]
Decompressor::Bzip2(r) => r.read(buf),
#[cfg(feature = "zstd")]
Decompressor::Zstd(r) => r.read(buf),
#[cfg(feature = "lzma")]
Decompressor::Lzma(r) => r.read(buf),
#[cfg(feature = "xz")]
Decompressor::Xz(r) => r.read(buf),
}
}
}
impl<R: io::BufRead> Decompressor<R> {
pub fn new(reader: R, compression_method: CompressionMethod) -> crate::result::ZipResult<Self> {
Ok(match compression_method {
CompressionMethod::Stored => Decompressor::Stored(reader),
#[cfg(feature = "_deflate-any")]
CompressionMethod::Deflated => {
Decompressor::Deflated(flate2::bufread::DeflateDecoder::new(reader))
}
#[cfg(feature = "deflate64")]
CompressionMethod::Deflate64 => {
Decompressor::Deflate64(deflate64::Deflate64Decoder::with_buffer(reader))
}
#[cfg(feature = "bzip2")]
CompressionMethod::Bzip2 => Decompressor::Bzip2(bzip2::bufread::BzDecoder::new(reader)),
#[cfg(feature = "zstd")]
CompressionMethod::Zstd => Decompressor::Zstd(zstd::Decoder::with_buffer(reader)?),
#[cfg(feature = "lzma")]
CompressionMethod::Lzma => {
Decompressor::Lzma(Box::new(crate::read::lzma::LzmaDecoder::new(reader)))
}
#[cfg(feature = "xz")]
CompressionMethod::Xz => Decompressor::Xz(crate::read::xz::XzDecoder::new(reader)),
_ => {
return Err(crate::result::ZipError::UnsupportedArchive(
"Compression method not supported",
))
}
})
}
/// Consumes this decoder, returning the underlying reader.
pub fn into_inner(self) -> R {
match self {
Decompressor::Stored(r) => r,
#[cfg(feature = "_deflate-any")]
Decompressor::Deflated(r) => r.into_inner(),
#[cfg(feature = "deflate64")]
Decompressor::Deflate64(r) => r.into_inner(),
#[cfg(feature = "bzip2")]
Decompressor::Bzip2(r) => r.into_inner(),
#[cfg(feature = "zstd")]
Decompressor::Zstd(r) => r.finish(),
#[cfg(feature = "lzma")]
Decompressor::Lzma(r) => r.into_inner(),
#[cfg(feature = "xz")]
Decompressor::Xz(r) => r.into_inner(),
}
}
}
#[cfg(test)]
mod test {
use super::{CompressionMethod, SUPPORTED_COMPRESSION_METHODS};

293
src/read.rs
View file

@ -2,7 +2,7 @@
#[cfg(feature = "aes-crypto")]
use crate::aes::{AesReader, AesReaderValid};
use crate::compression::CompressionMethod;
use crate::compression::{CompressionMethod, Decompressor};
use crate::cp437::FromCp437;
use crate::crc32::Crc32Reader;
use crate::extra_fields::{ExtendedTimestamp, ExtraField};
@ -26,18 +26,6 @@ use std::path::{Path, PathBuf};
use std::rc::Rc;
use std::sync::{Arc, OnceLock};
#[cfg(feature = "deflate-flate2")]
use flate2::read::DeflateDecoder;
#[cfg(feature = "deflate64")]
use deflate64::Deflate64Decoder;
#[cfg(feature = "bzip2")]
use bzip2::read::BzDecoder;
#[cfg(feature = "zstd")]
use zstd::stream::read::Decoder as ZstdDecoder;
mod config;
pub use config::*;
@ -124,11 +112,7 @@ pub(crate) mod zip_archive {
#[cfg(feature = "aes-crypto")]
use crate::aes::PWD_VERIFY_LENGTH;
use crate::extra_fields::UnicodeExtraField;
#[cfg(feature = "lzma")]
use crate::read::lzma::LzmaDecoder;
#[cfg(feature = "xz")]
use crate::read::xz::XzDecoder;
use crate::result::ZipError::{InvalidArchive, InvalidPassword, UnsupportedArchive};
use crate::result::ZipError::{InvalidArchive, InvalidPassword};
use crate::spec::is_dir;
use crate::types::ffi::S_IFLNK;
use crate::unstable::{path_to_string, LittleEndianReadExt};
@ -200,141 +184,69 @@ impl<'a> CryptoReader<'a> {
}
}
#[cold]
fn invalid_state<T>() -> io::Result<T> {
Err(io::Error::new(
io::ErrorKind::Other,
"ZipFileReader was in an invalid state",
))
}
pub(crate) enum ZipFileReader<'a> {
NoReader,
Raw(io::Take<&'a mut dyn Read>),
Stored(Crc32Reader<CryptoReader<'a>>),
#[cfg(feature = "_deflate-any")]
Deflated(Crc32Reader<DeflateDecoder<CryptoReader<'a>>>),
#[cfg(feature = "deflate64")]
Deflate64(Crc32Reader<Deflate64Decoder<io::BufReader<CryptoReader<'a>>>>),
#[cfg(feature = "bzip2")]
Bzip2(Crc32Reader<BzDecoder<CryptoReader<'a>>>),
#[cfg(feature = "zstd")]
Zstd(Crc32Reader<ZstdDecoder<'a, io::BufReader<CryptoReader<'a>>>>),
#[cfg(feature = "lzma")]
Lzma(Crc32Reader<Box<LzmaDecoder<CryptoReader<'a>>>>),
#[cfg(feature = "xz")]
Xz(Crc32Reader<XzDecoder<CryptoReader<'a>>>),
Compressed(Box<Crc32Reader<Decompressor<io::BufReader<CryptoReader<'a>>>>>),
}
impl<'a> Read for ZipFileReader<'a> {
fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
match self {
ZipFileReader::NoReader => panic!("ZipFileReader was in an invalid state"),
ZipFileReader::NoReader => invalid_state(),
ZipFileReader::Raw(r) => r.read(buf),
ZipFileReader::Stored(r) => r.read(buf),
#[cfg(feature = "_deflate-any")]
ZipFileReader::Deflated(r) => r.read(buf),
#[cfg(feature = "deflate64")]
ZipFileReader::Deflate64(r) => r.read(buf),
#[cfg(feature = "bzip2")]
ZipFileReader::Bzip2(r) => r.read(buf),
#[cfg(feature = "zstd")]
ZipFileReader::Zstd(r) => r.read(buf),
#[cfg(feature = "lzma")]
ZipFileReader::Lzma(r) => r.read(buf),
#[cfg(feature = "xz")]
ZipFileReader::Xz(r) => r.read(buf),
ZipFileReader::Compressed(r) => r.read(buf),
}
}
fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
match self {
ZipFileReader::NoReader => panic!("ZipFileReader was in an invalid state"),
ZipFileReader::NoReader => invalid_state(),
ZipFileReader::Raw(r) => r.read_exact(buf),
ZipFileReader::Stored(r) => r.read_exact(buf),
#[cfg(feature = "_deflate-any")]
ZipFileReader::Deflated(r) => r.read_exact(buf),
#[cfg(feature = "deflate64")]
ZipFileReader::Deflate64(r) => r.read_exact(buf),
#[cfg(feature = "bzip2")]
ZipFileReader::Bzip2(r) => r.read_exact(buf),
#[cfg(feature = "zstd")]
ZipFileReader::Zstd(r) => r.read_exact(buf),
#[cfg(feature = "lzma")]
ZipFileReader::Lzma(r) => r.read_exact(buf),
#[cfg(feature = "xz")]
ZipFileReader::Xz(r) => r.read_exact(buf),
ZipFileReader::Compressed(r) => r.read_exact(buf),
}
}
fn read_to_end(&mut self, buf: &mut Vec<u8>) -> io::Result<usize> {
match self {
ZipFileReader::NoReader => panic!("ZipFileReader was in an invalid state"),
ZipFileReader::NoReader => invalid_state(),
ZipFileReader::Raw(r) => r.read_to_end(buf),
ZipFileReader::Stored(r) => r.read_to_end(buf),
#[cfg(feature = "_deflate-any")]
ZipFileReader::Deflated(r) => r.read_to_end(buf),
#[cfg(feature = "deflate64")]
ZipFileReader::Deflate64(r) => r.read_to_end(buf),
#[cfg(feature = "bzip2")]
ZipFileReader::Bzip2(r) => r.read_to_end(buf),
#[cfg(feature = "zstd")]
ZipFileReader::Zstd(r) => r.read_to_end(buf),
#[cfg(feature = "lzma")]
ZipFileReader::Lzma(r) => r.read_to_end(buf),
#[cfg(feature = "xz")]
ZipFileReader::Xz(r) => r.read_to_end(buf),
ZipFileReader::Compressed(r) => r.read_to_end(buf),
}
}
fn read_to_string(&mut self, buf: &mut String) -> io::Result<usize> {
match self {
ZipFileReader::NoReader => panic!("ZipFileReader was in an invalid state"),
ZipFileReader::NoReader => invalid_state(),
ZipFileReader::Raw(r) => r.read_to_string(buf),
ZipFileReader::Stored(r) => r.read_to_string(buf),
#[cfg(feature = "_deflate-any")]
ZipFileReader::Deflated(r) => r.read_to_string(buf),
#[cfg(feature = "deflate64")]
ZipFileReader::Deflate64(r) => r.read_to_string(buf),
#[cfg(feature = "bzip2")]
ZipFileReader::Bzip2(r) => r.read_to_string(buf),
#[cfg(feature = "zstd")]
ZipFileReader::Zstd(r) => r.read_to_string(buf),
#[cfg(feature = "lzma")]
ZipFileReader::Lzma(r) => r.read_to_string(buf),
#[cfg(feature = "xz")]
ZipFileReader::Xz(r) => r.read_to_string(buf),
ZipFileReader::Compressed(r) => r.read_to_string(buf),
}
}
}
impl<'a> ZipFileReader<'a> {
/// Consumes this decoder, returning the underlying reader.
pub fn drain(self) {
let mut inner = match self {
ZipFileReader::NoReader => panic!("ZipFileReader was in an invalid state"),
ZipFileReader::Raw(r) => r,
ZipFileReader::Stored(r) => r.into_inner().into_inner(),
#[cfg(feature = "_deflate-any")]
ZipFileReader::Deflated(r) => r.into_inner().into_inner().into_inner(),
#[cfg(feature = "deflate64")]
ZipFileReader::Deflate64(r) => r.into_inner().into_inner().into_inner().into_inner(),
#[cfg(feature = "bzip2")]
ZipFileReader::Bzip2(r) => r.into_inner().into_inner().into_inner(),
#[cfg(feature = "zstd")]
ZipFileReader::Zstd(r) => r.into_inner().finish().into_inner().into_inner(),
#[cfg(feature = "lzma")]
ZipFileReader::Lzma(r) => {
// Lzma reader owns its buffer rather than mutably borrowing it, so we have to drop
// it separately
if let Ok(mut remaining) = r.into_inner().finish() {
let _ = copy(&mut remaining, &mut sink());
}
return;
fn into_inner(self) -> io::Result<io::Take<&'a mut dyn Read>> {
match self {
ZipFileReader::NoReader => invalid_state(),
ZipFileReader::Raw(r) => Ok(r),
ZipFileReader::Compressed(r) => {
Ok(r.into_inner().into_inner().into_inner().into_inner())
}
#[cfg(feature = "xz")]
ZipFileReader::Xz(r) => r.into_inner().into_inner().into_inner(),
};
let _ = copy(&mut inner, &mut sink());
}
}
}
/// A struct for reading a zip file
pub struct ZipFile<'a> {
pub(crate) data: Cow<'a, ZipFileData>,
pub(crate) crypto_reader: Option<CryptoReader<'a>>,
pub(crate) reader: ZipFileReader<'a>,
}
@ -459,18 +371,14 @@ fn find_data_start(
#[allow(clippy::too_many_arguments)]
pub(crate) fn make_crypto_reader<'a>(
compression_method: CompressionMethod,
crc32: u32,
mut last_modified_time: Option<DateTime>,
using_data_descriptor: bool,
data: &ZipFileData,
reader: io::Take<&'a mut dyn Read>,
password: Option<&[u8]>,
aes_info: Option<(AesMode, AesVendorVersion, CompressionMethod)>,
#[cfg(feature = "aes-crypto")] compressed_size: u64,
) -> ZipResult<CryptoReader<'a>> {
#[allow(deprecated)]
{
if let CompressionMethod::Unsupported(_) = compression_method {
if let CompressionMethod::Unsupported(_) = data.compression_method {
return unsupported_zip_error("Compression method not supported");
}
}
@ -484,17 +392,18 @@ pub(crate) fn make_crypto_reader<'a>(
}
#[cfg(feature = "aes-crypto")]
(Some(password), Some((aes_mode, vendor_version, _))) => CryptoReader::Aes {
reader: AesReader::new(reader, aes_mode, compressed_size).validate(password)?,
reader: AesReader::new(reader, aes_mode, data.compressed_size).validate(password)?,
vendor_version,
},
(Some(password), None) => {
if !using_data_descriptor {
let mut last_modified_time = data.last_modified_time;
if !data.using_data_descriptor {
last_modified_time = None;
}
let validator = if let Some(last_modified_time) = last_modified_time {
ZipCryptoValidator::InfoZipMsdosTime(last_modified_time.timepart())
} else {
ZipCryptoValidator::PkzipCrc32(crc32)
ZipCryptoValidator::PkzipCrc32(data.crc32)
};
CryptoReader::ZipCrypto(ZipCryptoReader::new(reader, password).validate(validator)?)
}
@ -511,68 +420,11 @@ pub(crate) fn make_reader(
) -> ZipResult<ZipFileReader> {
let ae2_encrypted = reader.is_ae2_encrypted();
match compression_method {
CompressionMethod::Stored => Ok(ZipFileReader::Stored(Crc32Reader::new(
reader,
crc32,
ae2_encrypted,
))),
#[cfg(feature = "_deflate-any")]
CompressionMethod::Deflated => {
let deflate_reader = DeflateDecoder::new(reader);
Ok(ZipFileReader::Deflated(Crc32Reader::new(
deflate_reader,
crc32,
ae2_encrypted,
)))
}
#[cfg(feature = "deflate64")]
CompressionMethod::Deflate64 => {
let deflate64_reader = Deflate64Decoder::new(reader);
Ok(ZipFileReader::Deflate64(Crc32Reader::new(
deflate64_reader,
crc32,
ae2_encrypted,
)))
}
#[cfg(feature = "bzip2")]
CompressionMethod::Bzip2 => {
let bzip2_reader = BzDecoder::new(reader);
Ok(ZipFileReader::Bzip2(Crc32Reader::new(
bzip2_reader,
crc32,
ae2_encrypted,
)))
}
#[cfg(feature = "zstd")]
CompressionMethod::Zstd => {
let zstd_reader = ZstdDecoder::new(reader).unwrap();
Ok(ZipFileReader::Zstd(Crc32Reader::new(
zstd_reader,
crc32,
ae2_encrypted,
)))
}
#[cfg(feature = "lzma")]
CompressionMethod::Lzma => {
let reader = LzmaDecoder::new(reader);
Ok(ZipFileReader::Lzma(Crc32Reader::new(
Box::new(reader),
crc32,
ae2_encrypted,
)))
}
#[cfg(feature = "xz")]
CompressionMethod::Xz => {
let reader = XzDecoder::new(reader);
Ok(ZipFileReader::Xz(Crc32Reader::new(
reader,
crc32,
ae2_encrypted,
)))
}
_ => Err(UnsupportedArchive("Compression method not supported")),
}
Ok(ZipFileReader::Compressed(Box::new(Crc32Reader::new(
Decompressor::new(io::BufReader::new(reader), compression_method)?,
crc32,
ae2_encrypted,
))))
}
#[derive(Debug)]
@ -1313,7 +1165,6 @@ impl<R: Read + Seek> ZipArchive<R> {
.get_index(file_number)
.ok_or(ZipError::FileNotFound)?;
Ok(ZipFile {
crypto_reader: None,
reader: ZipFileReader::Raw(find_content(data, reader)?),
data: Cow::Borrowed(data),
})
@ -1337,21 +1188,11 @@ impl<R: Read + Seek> ZipArchive<R> {
}
let limit_reader = find_content(data, &mut self.reader)?;
let crypto_reader = make_crypto_reader(
data.compression_method,
data.crc32,
data.last_modified_time,
data.using_data_descriptor,
limit_reader,
password,
data.aes_mode,
#[cfg(feature = "aes-crypto")]
data.compressed_size,
)?;
let crypto_reader = make_crypto_reader(data, limit_reader, password, data.aes_mode)?;
Ok(ZipFile {
crypto_reader: Some(crypto_reader),
reader: ZipFileReader::NoReader,
data: Cow::Borrowed(data),
reader: make_reader(data.compression_method, data.crc32, crypto_reader)?,
})
}
@ -1646,21 +1487,8 @@ pub trait HasZipMetadata {
/// Methods for retrieving information on zip files
impl<'a> ZipFile<'a> {
fn get_reader(&mut self) -> ZipResult<&mut ZipFileReader<'a>> {
if let ZipFileReader::NoReader = self.reader {
let data = &self.data;
let crypto_reader = self.crypto_reader.take().expect("Invalid reader state");
self.reader = make_reader(data.compression_method, data.crc32, crypto_reader)?;
}
Ok(&mut self.reader)
}
pub(crate) fn get_raw_reader(&mut self) -> &mut dyn Read {
if let ZipFileReader::NoReader = self.reader {
let crypto_reader = self.crypto_reader.take().expect("Invalid reader state");
self.reader = ZipFileReader::Raw(crypto_reader.into_inner())
}
&mut self.reader
pub(crate) fn take_raw_reader(&mut self) -> io::Result<io::Take<&'a mut dyn Read>> {
std::mem::replace(&mut self.reader, ZipFileReader::NoReader).into_inner()
}
/// Get the version of the file
@ -1829,19 +1657,19 @@ impl<'a> HasZipMetadata for ZipFile<'a> {
impl<'a> Read for ZipFile<'a> {
fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
self.get_reader()?.read(buf)
self.reader.read(buf)
}
fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
self.get_reader()?.read_exact(buf)
self.reader.read_exact(buf)
}
fn read_to_end(&mut self, buf: &mut Vec<u8>) -> io::Result<usize> {
self.get_reader()?.read_to_end(buf)
self.reader.read_to_end(buf)
}
fn read_to_string(&mut self, buf: &mut String) -> io::Result<usize> {
self.get_reader()?.read_to_string(buf)
self.reader.read_to_string(buf)
}
}
@ -1873,19 +1701,9 @@ impl<'a> Drop for ZipFile<'a> {
// In this case, we want to exhaust the reader so that the next file is accessible.
if let Cow::Owned(_) = self.data {
// Get the inner `Take` reader so all decryption, decompression and CRC calculation is skipped.
match &mut self.reader {
ZipFileReader::NoReader => {
let innerreader = self.crypto_reader.take();
let _ = copy(
&mut innerreader.expect("Invalid reader state").into_inner(),
&mut sink(),
);
}
reader => {
let innerreader = std::mem::replace(reader, ZipFileReader::NoReader);
innerreader.drain();
}
};
if let Ok(mut inner) = self.take_raw_reader() {
let _ = copy(&mut inner, &mut sink());
}
}
}
}
@ -1934,21 +1752,10 @@ pub fn read_zipfile_from_stream<'a, R: Read>(reader: &'a mut R) -> ZipResult<Opt
let result_crc32 = result.crc32;
let result_compression_method = result.compression_method;
let crypto_reader = make_crypto_reader(
result_compression_method,
result_crc32,
result.last_modified_time,
result.using_data_descriptor,
limit_reader,
None,
None,
#[cfg(feature = "aes-crypto")]
result.compressed_size,
)?;
let crypto_reader = make_crypto_reader(&result, limit_reader, None, None)?;
Ok(Some(ZipFile {
data: Cow::Owned(result),
crypto_reader: None,
reader: make_reader(result_compression_method, result_crc32, crypto_reader)?,
}))
}

19
src/read/lzma.rs
View file

@ -1,8 +1,6 @@
use lzma_rs::decompress::{Options, Stream, UnpackedSize};
use std::collections::VecDeque;
use std::io::{copy, Error, Read, Result, Write};
const COMPRESSED_BYTES_TO_BUFFER: usize = 4096;
use std::io::{BufRead, Read, Result, Write};
const OPTIONS: Options = Options {
unpacked_size: UnpackedSize::ReadFromHeader,
@ -24,23 +22,20 @@ impl<R: Read> LzmaDecoder<R> {
}
}
pub fn finish(mut self) -> Result<VecDeque<u8>> {
copy(&mut self.compressed_reader, &mut self.stream)?;
self.stream.finish().map_err(Error::from)
pub fn into_inner(self) -> R {
self.compressed_reader
}
}
impl<R: Read> Read for LzmaDecoder<R> {
impl<R: BufRead> Read for LzmaDecoder<R> {
fn read(&mut self, buf: &mut [u8]) -> Result<usize> {
let mut bytes_read = self.stream.get_output_mut().unwrap().read(buf)?;
while bytes_read < buf.len() {
let mut next_compressed = [0u8; COMPRESSED_BYTES_TO_BUFFER];
let compressed_bytes_read = self.compressed_reader.read(&mut next_compressed)?;
if compressed_bytes_read == 0 {
let compressed_bytes = self.compressed_reader.fill_buf()?;
if compressed_bytes.is_empty() {
break;
}
self.stream
.write_all(&next_compressed[..compressed_bytes_read])?;
self.stream.write_all(compressed_bytes)?;
bytes_read += self
.stream
.get_output_mut()

18
src/read/xz.rs
View file

@ -2,12 +2,12 @@ use crc32fast::Hasher;
use lzma_rs::decompress::raw::Lzma2Decoder;
use std::{
collections::VecDeque,
io::{BufRead, BufReader, Error, Read, Result, Write},
io::{BufRead, Error, Read, Result, Write},
};
#[derive(Debug)]
pub struct XzDecoder<R> {
compressed_reader: BufReader<R>,
pub struct XzDecoder<R: BufRead> {
compressed_reader: R,
stream_size: usize,
buf: VecDeque<u8>,
check_size: usize,
@ -15,10 +15,10 @@ pub struct XzDecoder<R> {
flags: [u8; 2],
}
impl<R: Read> XzDecoder<R> {
impl<R: BufRead> XzDecoder<R> {
pub fn new(inner: R) -> Self {
XzDecoder {
compressed_reader: BufReader::new(inner),
compressed_reader: inner,
stream_size: 0,
buf: VecDeque::new(),
check_size: 0,
@ -83,7 +83,7 @@ fn error<T>(s: &'static str) -> Result<T> {
Err(Error::new(std::io::ErrorKind::InvalidData, s))
}
fn get_multibyte<R: Read>(input: &mut R, hasher: &mut Hasher) -> Result<u64> {
fn get_multibyte<R: BufRead>(input: &mut R, hasher: &mut Hasher) -> Result<u64> {
let mut result = 0;
for i in 0..9 {
let mut b = [0u8; 1];
@ -98,7 +98,7 @@ fn get_multibyte<R: Read>(input: &mut R, hasher: &mut Hasher) -> Result<u64> {
error("Invalid multi-byte encoding")
}
impl<R: Read> Read for XzDecoder<R> {
impl<R: BufRead> Read for XzDecoder<R> {
fn read(&mut self, buf: &mut [u8]) -> Result<usize> {
if !self.buf.is_empty() {
let len = std::cmp::min(buf.len(), self.buf.len());
@ -263,8 +263,8 @@ impl<R: Read> Read for XzDecoder<R> {
}
}
impl<R: Read> XzDecoder<R> {
impl<R: BufRead> XzDecoder<R> {
pub fn into_inner(self) -> R {
self.compressed_reader.into_inner()
self.compressed_reader
}
}

2
src/write.rs
View file

@ -1315,7 +1315,7 @@ impl<W: Write + Seek> ZipWriter<W> {
self.writing_to_file = true;
self.writing_raw = true;
io::copy(file.get_raw_reader(), self)?;
io::copy(&mut file.take_raw_reader()?, self)?;
Ok(())
}