garage_api(fixup): Fix unexpected EOF error

src/api/signature/streaming.rs

@@ -192,35 +192,42 @@ where
 		let mut this = self.project();
 
 		macro_rules! try_parse {
-			($expr:expr) => {
+			($eof:expr, $expr:expr) => {
 				match $expr {
 					Ok(value) => Ok(value),
-					Err(nom::Err::Incomplete(_)) => continue,
+					Err(nom::Err::Incomplete(_)) => {
+						if $eof {
+							return Poll::Ready(Some(Err(SignedPayloadStreamError::message(
+								"Unexpected EOF",
+							))));
+						}
+						continue;
+					}
 					Err(nom::Err::Error(e)) | Err(nom::Err::Failure(e)) => Err(e),
 				}?
 			};
 		}
 
 		loop {
-			match futures::ready!(this.stream.as_mut().poll_next(cx)) {
+			let eof = match futures::ready!(this.stream.as_mut().poll_next(cx)) {
 				Some(Ok(bytes)) => {
+					log::debug!("Received: {:?}", bytes);
 					this.buf.extend(bytes);
+					false
 				}
 				Some(Err(e)) => return Poll::Ready(Some(Err(SignedPayloadStreamError::Stream(e)))),
 				None => {
+					log::debug!("Buf: {:?}", this.buf);
 					if this.buf.is_empty() {
 						return Poll::Ready(None);
-					} else {
-						return Poll::Ready(Some(Err(SignedPayloadStreamError::message(
-							"Unexpected EOF",
-						))));
 					}
+					true
 				}
-			}
+			};
 
 			let input: &[u8] = this.buf;
 
-			let (input, header) = try_parse!(payload::Header::parse(input));
+			let (input, header) = try_parse!(eof, payload::Header::parse(input));
 
 			// 0-sized chunk is the last
 			if header.size == 0 {
@@ -228,8 +235,9 @@ where
 				return Poll::Ready(None);
 			}
 
-			let (input, data) = try_parse!(take::<_, _, nom::error::Error<_>>(header.size)(input));
+			let (input, data) =
-			let (input, _) = try_parse!(tag::<_, _, nom::error::Error<_>>("\r\n")(input));
+				try_parse!(eof, take::<_, _, nom::error::Error<_>>(header.size)(input));
+			let (input, _) = try_parse!(eof, tag::<_, _, nom::error::Error<_>>("\r\n")(input));
 
 			let data = Bytes::from(data.to_vec());
 			let data_sha256sum = sha256sum(&data);