This change replaces OpenSSL with rustls and also the manually curated
CA certs file with webpki-roots (effectively the same thing, but as a
crate).
Generally speaking the design of the network stack is the same. Changes:
- Code around certificate overrides needed to be refactored to work with
rustls so the various thread-safe list of certificates is refactored
into `CertificateErrorOverrideManager`
- hyper-rustls takes care of setting ALPN protocols for HTTP requests,
so for WebSockets this is moved to the WebSocket code.
- The safe set of cypher suites is chosen, which seem to correspond to
the "Modern" configuration from [1]. This can be adjusted later.
- Instead of passing a string of PEM CA certificates around, an enum is
used that includes parsed Certificates (or the default which reads
them from webpki-roots).
- Code for starting up an SSL server for testing is cleaned up a little,
due to the fact that the certificates need to be overriden explicitly
now. This is due to the fact that the `webpki` crate is more stringent
with self-signed certificates than SSL (CA certificates cannot used as
end-entity certificates). [2]
1. https://wiki.mozilla.org/Security/Server_Side_TLS
2. https://github.com/briansmith/webpki/issues/114Fixes#7888.
Fixes#13749.
Fixes#26835.
Fixes#29291.
* don't offer DHE ciphersuites like Chrome
* don't offer AES-CBC-SHA2 like Firefox and Chrome
* don't offer AES-GCM for plain RSA like Firefox
* don't offer ECDSA with AES-CBC like Chrome
* don't offer weak DES-CBC3-SHA
* prefer AES256 over AES128 like Mozilla Modern, Safari and Edge
If hyper reads compressed enough data, we were decompressing 32k by 32k
but we were throwing away the end of the body because we would end up
having lots of backed up data in the cursor when hyper was done.
Implemented step nine of the main fetch. If current URL scheme is 'HTTP'
and current URL's host is domain and if current URL's host matched with
Known
HSTS Host Domain Name Matching results in either a superdomain match with
an asserted includeSubDomains directive or a congruent match then we
change request scheme to 'https'. This change has been made in method.rs
A test case to validate this has been added in fetch.rs. For asserting
https scheme, a https localhost was required. For this purpose I have
created a self-signed certificate and refactored fetch-context and
connector.rs to programmatically trust this certificate for running this
test case.
