Previously, hyper was defaulting to Chunked which adds a Transfer-Encoding
header, whenever there was no Content-Length header. RFC 7230 section 3.3.1
reads:
...
A server MUST NOT send a Transfer-Encoding header field in any
response with a status code of 1xx (Informational) or 204 (No
Content). A server MUST NOT send a Transfer-Encoding header field in
any 2xx (Successful) response to a CONNECT request
...
This commit fixes the cases of 1xx (Informational), 204 (No Content) by
using the EmptyWriter. It also uses EmptyWriter for 304 (NotModified) which
should not have a body.
It does NOT address the case of responses to CONNECT requests, or to HEAD
requests which do not send a body. These cases cannot be determined using
the data available in the response, and are left for future work.
When the Content-Length header is invalid, the Http11Message ends up
dropping the stream before returning the error. This causes a panic when
the `close_connection` method of the message is used later. This commit
fixes this by saving the stream onto the message instance before
returning the error. A regression test is also included.
When an Http11Message knows that the previous response should not
have included a body per RFC7230, and fails to parse the following
response, the bytes are shuffled along, checking for the start of the
next response.
Closes#640
- reading 0 bytes when SizedReader.remaining is more than 0 returns
"early eof" error
- reading 0 bytes when ChunkedReader.remaining is more than 0 returns
"early eof" error
- if SizedReader.remaining is less than buf.len(), the buf is sliced to
the remaining size
BREAKING CHANGE: This changes the signature of HttpWriter.end(),
returning a `EndError` that is similar to std::io::IntoInnerError,
allowing HttpMessage to retrieve the broken connections and not panic.
The breaking change isn't exposed in any usage of the `Client` API,
but for anyone using `HttpWriter` directly, since this was technically
a public method, that change is breaking.
This allows HttpStream and HttpListener to be created from raw
sockets similar to their Tcp counterparts. It also fixes up the
signature from i32 to RawFd for the AsRawFd method.
While these methods are marked unstable in libstd, this is behind a
feature flag, `timeouts`. The Client and Server both have
`set_read_timeout` and `set_write_timeout` methods, that will affect all
connections with that entity.
BREAKING CHANGE: Any custom implementation of NetworkStream must now
implement `set_read_timeout` and `set_write_timeout`, so those will
break. Most users who only use the provided streams should work with
no changes needed.
Closes#315
