tree 8a46810b7a81022fe02d6fe214423e6d653ca1ad
parent 7629a2dbc1f467b227e18f1a3d7b0d511f94e0f2
author Shin Fan <shinfan@google.com> 1589320436 -0500
committer Chris Broadfoot <cbro@google.com> 1589836690 +0000

transport: support GOOGLE_API_USE_MTLS

Allow GOOGLE_API_USE_MTLS overriding the mTLS endpoint
behavior for the HTTP client.

The variable has the following values:
- always: The mTLS endpoint is always used
- never: The regular endpoint is always used
- auto: The mTLS will be enabled if the client ceritificate is found

Change-Id: I096f80fcac7a1a79b9f0d8b7ab200b58b5448c6a
Reviewed-on: https://code-review.googlesource.com/c/google-api-go-client/+/56370
Reviewed-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Chris Broadfoot <cbro@google.com>