Previously we use io.LimitReader to limit the number of bytes
from http request. However, there is a subtle difference between
io.LimitReader and io.ReadAll as io.LimitReader will return
a Reader, not a ReadCloser. As such the behavior will actually
be difference in case of error handling (and when to close).
This PR changes io.LimitReader to http.MaxBytesReader
so that the behavior can be preserved (except the number of bytes).
See https://stackoverflow.com/a/52699702
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
This PR adds limit to ioutil.ReadAll for DoH request body
so that it will not be subject to large requests.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
* DoH: put in pkg/doh
Factor out the DoH stuff into its own package, add function to request
a DoH response. This can be used by forward (and maybe proxy) to
implement DoH client support.
Signed-off-by: Miek Gieben <miek@miek.nl>
* lint
Signed-off-by: Miek Gieben <miek@miek.nl>
* ... and make it compile
Signed-off-by: Miek Gieben <miek@miek.nl>
