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use bytes::Buf;
use super::HttpBody;
use crate::common::buf::BufList;
/// Aggregate the data buffers from a body asynchronously.
///
/// The returned `impl Buf` groups the `Buf`s from the `HttpBody` without
/// copying them. This is ideal if you don't require a contiguous buffer.
///
/// # Note
///
/// Care needs to be taken if the remote is untrusted. The function doesn't implement any length
/// checks and an malicious peer might make it consume arbitrary amounts of memory. Checking the
/// `Content-Length` is a possibility, but it is not strictly mandated to be present.
pub async fn aggregate<T>(body: T) -> Result<impl Buf, T::Error>
where
T: HttpBody,
{
let mut bufs = BufList::new();
futures_util::pin_mut!(body);
while let Some(buf) = body.data().await {
let buf = buf?;
if buf.has_remaining() {
bufs.push(buf);
}
}
Ok(bufs)
}