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fix decoding extra empty frame #2508

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merged 1 commit into from
Dec 27, 2024
Merged

fix decoding extra empty frame #2508

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fix decoding extra empty frame
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@seanmonstar
seanmonstar committed Dec 27, 2024
commit 8ab61055405c6dcc1e61f5034e137920bf843665
76 changes: 44 additions & 32 deletions src/async_impl/decoder.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -378,14 +378,10 @@ impl HttpBody for Decoder {
Some(Err(err)) => Poll::Ready(Some(Err(crate::error::decode_io(err)))),
None => {
// poll inner connection until EOF after gzip stream is finished
let inner_stream = decoder.get_mut().get_mut().get_mut().get_mut();
match futures_core::ready!(Pin::new(inner_stream).poll_next(cx)) {
Some(Ok(_)) => Poll::Ready(Some(Err(crate::error::decode(
"there are extra bytes after body has been decompressed",
)))),
Some(Err(err)) => Poll::Ready(Some(Err(crate::error::decode_io(err)))),
None => Poll::Ready(None),
}
poll_inner_should_be_empty(
decoder.get_mut().get_mut().get_mut().get_mut(),
cx,
)
}
}
}
Expand All @@ -396,14 +392,10 @@ impl HttpBody for Decoder {
Some(Err(err)) => Poll::Ready(Some(Err(crate::error::decode_io(err)))),
None => {
// poll inner connection until EOF after brotli stream is finished
let inner_stream = decoder.get_mut().get_mut().get_mut().get_mut();
match futures_core::ready!(Pin::new(inner_stream).poll_next(cx)) {
Some(Ok(_)) => Poll::Ready(Some(Err(crate::error::decode(
"there are extra bytes after body has been decompressed",
)))),
Some(Err(err)) => Poll::Ready(Some(Err(crate::error::decode_io(err)))),
None => Poll::Ready(None),
}
poll_inner_should_be_empty(
decoder.get_mut().get_mut().get_mut().get_mut(),
cx,
)
}
}
}
Expand All @@ -414,14 +406,10 @@ impl HttpBody for Decoder {
Some(Err(err)) => Poll::Ready(Some(Err(crate::error::decode_io(err)))),
None => {
// poll inner connection until EOF after zstd stream is finished
let inner_stream = decoder.get_mut().get_mut().get_mut().get_mut();
match futures_core::ready!(Pin::new(inner_stream).poll_next(cx)) {
Some(Ok(_)) => Poll::Ready(Some(Err(crate::error::decode(
"there are extra bytes after body has been decompressed",
)))),
Some(Err(err)) => Poll::Ready(Some(Err(crate::error::decode_io(err)))),
None => Poll::Ready(None),
}
poll_inner_should_be_empty(
decoder.get_mut().get_mut().get_mut().get_mut(),
cx,
)
}
}
}
Expand All @@ -432,14 +420,10 @@ impl HttpBody for Decoder {
Some(Err(err)) => Poll::Ready(Some(Err(crate::error::decode_io(err)))),
None => {
// poll inner connection until EOF after deflate stream is finished
let inner_stream = decoder.get_mut().get_mut().get_mut().get_mut();
match futures_core::ready!(Pin::new(inner_stream).poll_next(cx)) {
Some(Ok(_)) => Poll::Ready(Some(Err(crate::error::decode(
"there are extra bytes after body has been decompressed",
)))),
Some(Err(err)) => Poll::Ready(Some(Err(crate::error::decode_io(err)))),
None => Poll::Ready(None),
}
poll_inner_should_be_empty(
decoder.get_mut().get_mut().get_mut().get_mut(),
cx,
)
}
}
}
Expand All @@ -461,6 +445,34 @@ impl HttpBody for Decoder {
}
}

#[cfg(any(
feature = "gzip",
feature = "zstd",
feature = "brotli",
feature = "deflate"
))]
fn poll_inner_should_be_empty(
inner: &mut PeekableIoStream,
cx: &mut Context,
) -> Poll<Option<Result<Frame<Bytes>, crate::Error>>> {
// poll inner connection until EOF after deflate stream is finished
// loop in case of empty frames
let mut inner = Pin::new(inner);
loop {
match futures_core::ready!(inner.as_mut().poll_next(cx)) {
// ignore any empty frames
Some(Ok(bytes)) if bytes.is_empty() => continue,
Some(Ok(_)) => {
return Poll::Ready(Some(Err(crate::error::decode(
"there are extra bytes after body has been decompressed",
))))
}
Some(Err(err)) => return Poll::Ready(Some(Err(crate::error::decode_io(err)))),
None => return Poll::Ready(None),
}
}
}

#[cfg(any(
feature = "gzip",
feature = "zstd",
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