customize roots

[flisky]

Describe the feature

There're three ways in hyper-rustls to customize roots:

• rustls-native-certs
• webpki-roots
• rustls-platform-verifier

aws-smithy-experimental only uses rustls-native-certs, but rustls-native-certs doesn't work on ios & android. And there's no way to customize?

refer: #575

Use Case

upgrade to hyper 1.x and use aws-sdk on mobile platforms

Proposed Solution

Add more feature flags to choose cert providers?

Other Information

No response

Acknowledgements

• I may be able to implement this feature request
• This feature might incur a breaking change

A note for the community

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[ysaito1001]

Hi @flisky, thank you for submitting an enhancement request.

We are aware of the need to configure the roots and will ensure that is indeed configurable as we roll out hyper 1.x.

Note that when we do roll it out, it could be that configuration is achieved by customizing an HttpConnector, and what we provide might be documentation in that case.