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feat: request smtp ALPN for SMTP TLS connections

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Even though SMTP ALPN is not officially registered (unlike IMAP),
it is an obvious choice that will allow
to multiplex SMTP and other protocols on the same TLS port.
This commit is contained in:
link2xt
2024-07-11 05:39:45 +00:00
parent ef0d6d0c90
commit faad7d5843
1 changed files with 4 additions and 4 deletions
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8
src/smtp.rs
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@@ -120,7 +120,7 @@ impl Smtp {
let socks5_stream = socks5_config
.connect(context, hostname, port, SMTP_TIMEOUT, strict_tls)
.await?;
let tls_stream = wrap_tls(strict_tls, hostname, &[], socks5_stream).await?;
let tls_stream = wrap_tls(strict_tls, hostname, &["smtp"], socks5_stream).await?;
let buffered_stream = BufStream::new(tls_stream);
let session_stream: Box<dyn SessionBufStream> = Box::new(buffered_stream);
let client = smtp::SmtpClient::new().smtp_utf8(true);
@@ -144,7 +144,7 @@ impl Smtp {
let client = smtp::SmtpClient::new().smtp_utf8(true);
let transport = SmtpTransport::new(client, BufStream::new(socks5_stream)).await?;
let tcp_stream = transport.starttls().await?.into_inner();
let tls_stream = wrap_tls(strict_tls, hostname, &[], tcp_stream)
let tls_stream = wrap_tls(strict_tls, hostname, &["smtp"], tcp_stream)
.await
.context("STARTTLS upgrade failed")?;
let buffered_stream = BufStream::new(tls_stream);
@@ -179,7 +179,7 @@ impl Smtp {
strict_tls: bool,
) -> Result<SmtpTransport<Box<dyn SessionBufStream>>> {
let tcp_stream = connect_tcp(context, hostname, port, SMTP_TIMEOUT, false).await?;
let tls_stream = wrap_tls(strict_tls, hostname, &[], tcp_stream).await?;
let tls_stream = wrap_tls(strict_tls, hostname, &["smtp"], tcp_stream).await?;
let buffered_stream = BufStream::new(tls_stream);
let session_stream: Box<dyn SessionBufStream> = Box::new(buffered_stream);
let client = smtp::SmtpClient::new().smtp_utf8(true);
@@ -200,7 +200,7 @@ impl Smtp {
let client = smtp::SmtpClient::new().smtp_utf8(true);
let transport = SmtpTransport::new(client, BufStream::new(tcp_stream)).await?;
let tcp_stream = transport.starttls().await?.into_inner();
let tls_stream = wrap_tls(strict_tls, hostname, &[], tcp_stream)
let tls_stream = wrap_tls(strict_tls, hostname, &["smtp"], tcp_stream)
.await
.context("STARTTLS upgrade failed")?;
let buffered_stream = BufStream::new(tls_stream);