From 3198ddaf156771d965381a848aa83c7ac2e35786 Mon Sep 17 00:00:00 2001
From: Jon Gjengset <jon@thesquareplanet.com>
Date: Sat, 21 Jan 2023 14:50:25 -0800
Subject: [PATCH] Address base64 deprecations

---
 src/client.rs | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/src/client.rs b/src/client.rs
index f629b3e..7969497 100644
--- a/src/client.rs
+++ b/src/client.rs
@@ -1,3 +1,4 @@
+use base64::{engine::general_purpose, Engine as _};
 use bufstream::BufStream;
 use chrono::{DateTime, FixedOffset};
 use imap_proto::Response;
@@ -471,16 +472,18 @@ impl<T: Read + Write> Client<T> {
                     let data =
                         ok_or_unauth_client_err!(parse_authenticate_response(line_str), self);
                     ok_or_unauth_client_err!(
-                        base64::decode(data).map_err(|e| Error::Parse(ParseError::Authentication(
-                            data.to_string(),
-                            Some(e)
-                        ))),
+                        general_purpose::STANDARD_NO_PAD
+                            .decode(data)
+                            .map_err(|e| Error::Parse(ParseError::Authentication(
+                                data.to_string(),
+                                Some(e)
+                            ))),
                         self
                     )
                 };
 
                 let raw_response = &authenticator.process(&challenge);
-                let auth_response = base64::encode(raw_response);
+                let auth_response = general_purpose::STANDARD_NO_PAD.encode(raw_response);
                 ok_or_unauth_client_err!(
                     self.write_line(auth_response.into_bytes().as_slice()),
                     self