From 776a3ecd1ff0a2b0ca5c001d6b618ba1861789e4 Mon Sep 17 00:00:00 2001
From: link2xt <link2xt@testrun.org>
Date: Sun, 12 Jun 2022 18:38:10 +0000
Subject: [PATCH] mimefactory: use async_std instead of std

Read files asynchronously to avoid blocking threads.
---
 src/mimefactory.rs | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/mimefactory.rs b/src/mimefactory.rs
index 3c892ab0f..4dd2c3021 100644
--- a/src/mimefactory.rs
+++ b/src/mimefactory.rs
@@ -3,6 +3,7 @@
 use std::convert::TryInto;
 
 use anyhow::{bail, ensure, Context as _, Result};
+use async_std::fs;
 use chrono::TimeZone;
 use lettre_email::{mime, Address, Header, MimeMultipartType, PartBuilder};
 
@@ -1183,7 +1184,7 @@ impl<'a> MimeFactory<'a> {
 
         if self.attach_selfavatar {
             match context.get_config(Config::Selfavatar).await? {
-                Some(path) => match build_selfavatar_file(context, &path) {
+                Some(path) => match build_selfavatar_file(context, &path).await {
                     Ok(avatar) => headers.hidden.push(Header::new(
                         "Chat-User-Avatar".into(),
                         format!("base64:{}", avatar),
@@ -1366,7 +1367,7 @@ async fn build_body_file(
         maybe_encode_words(&filename_to_send)
     );
 
-    let body = std::fs::read(blob.to_abs_path())?;
+    let body = fs::read(blob.to_abs_path()).await?;
     let encoded_body = wrapped_base64_encode(&body);
 
     let mail = PartBuilder::new()
@@ -1378,9 +1379,9 @@ async fn build_body_file(
     Ok((mail, filename_to_send))
 }
 
-fn build_selfavatar_file(context: &Context, path: &str) -> Result<String> {
+async fn build_selfavatar_file(context: &Context, path: &str) -> Result<String> {
     let blob = BlobObject::from_path(context, path.as_ref())?;
-    let body = std::fs::read(blob.to_abs_path())?;
+    let body = fs::read(blob.to_abs_path()).await?;
     let encoded_body = wrapped_base64_encode(&body);
     Ok(encoded_body)
 }