PackageManager should use System.Net.Http on CoreCLR

[pranavkm]

The System.Net.Http package has a HttpClient which would be the replacement for Microsoft.Net.HttpClient.

[pranavkm]

Note: I tried switching it over but there's a bug in HttpClient which causes it throw ObjectDisposedException if you reuse it for requests. This prevents us from using it at this point. @Tratcher could you let us know when the bug might be fixed so we can start using it?

[Tratcher]

Yes, lets try this again in a few weeks.

[Praburaj]

@pranavkm - This HttpClient bug is fixed now. Can we try this?

[ChengTian]

Hi @pranavkm , I am trying this change again but cannot find the class WebProxy in System.Net.Http.4.0.0.0 or System.Net.Primitives.4.0.10.0 package. When you was making this change, where did you find WebProxy, which is needed by kpm restore?

[muratg]

@ChengTian @pranavkm what's the status of this issue?

[ChengTian]

Buggy HttpClient from CoreCLR was preventing this from being done. I will try integrating the latest CoreCLR HttpClient to see whether it usable now.

[muratg]

@glennc do we need this in RC1?

[ChengTian]

@danroth27 talked to me and we should keep trying to integrate HttpClient from CoreCLR and filing bugs if we can catch any with dnu restore. Putting this to beta6.

[ChengTian]

Still waiting for bug fix from CoreCLR team: https://github.com/dotnet/corefx/issues/2168

The purpose of this task is testing HttpClient on CoreCLR and it is not an urgent issue. Moving to next milestone. @muratg