http: Add support for CONNECT proxying to HTTPS locations

Proxying HTTPS traffic requires the proxy providing the
CONNECT method. This implements the client side of it,
although it is a bit hacky.

HTTP connect is a normal HTTP CONNECT request, followed
by a normal HTTP response, just that the body of the
response is the TCP stream of the target host.

We use a special wrapper in case there are data bytes
in the header packets - in that case, the bytes are
stored in a buffer and the buffer will be drained first,
afterwards the connection continues directly with the
TCP stream (with one more vcall).

Also: Do not send full URI to https destinations when proxying,
as we are directly interfacing with the destination data stream.

0 files changed, 0 insertions, 0 deletions