Use tokio-rustls 0.23

[edward-shen]

PR Type

Feature

PR Checklist

Check your PR fulfills the following:

• Tests for the changes have been added / updated.
• Documentation comments have been added / updated.
• A changelog entry has been made for the appropriate packages.
• Format code with the latest stable rustfmt

Overview

This is related to actix/actix-web#2304, which requires acitx-tls to support rustls 0.20. tokio-tls 0.23 adds this support, so we just need to version bump everything, and address locations that are broken.

Note that a breaking change exists, as we no longer re-export Session.

Tests were made with cargo t --all-features, and verification of the change was performed with cargo tree -p actix-tls --all-features | grep rustls:

├── tokio-rustls v0.23.0
│   ├── rustls v0.20.0
├── rustls-pemfile v0.2.1

[edward-shen]

Re: CI failures: rustls uses bool::then which were stabilized in 1.50 (rust-lang/rust#79299). Not sure if we can bump actix-net's MSRV to 1.50? (rustls real MSRV is 1.52.1 so optimally we'd bump to that instead).

[robjtede]

1.52 is higher than i want to go :/ the higher level parts of actix have moved to 1.51 recently

i'll look into it today

[robjtede]

Managed to get the CI working. Raised MSRV for -server and -tls to 1.52 so this can go ahead.

[robjtede]

released in actix-tls v3.0.0-beta.6