switch to quoted-printable, which is already used by mailparse

Cargo.lock

@@ -639,12 +639,12 @@ dependencies = [
  "pretty_env_logger 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "proptest 0.9.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "quick-xml 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quoted_printable 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "r2d2 0.8.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "r2d2_sqlite 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "reqwest 0.9.22 (registry+https://github.com/rust-lang/crates.io-index)",
- "rfc2047 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rusqlite 0.20.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustls 0.16.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustyline 4.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2287,11 +2287,6 @@ dependencies = [
  "winreg 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "rfc2047"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "ring"
 version = "0.16.9"
@@ -3597,7 +3592,6 @@ dependencies = [
 "checksum rental 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)" = "8545debe98b2b139fb04cad8618b530e9b07c152d99a5de83c860b877d67847f"
 "checksum rental-impl 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)" = "475e68978dc5b743f2f40d8e0a8fdc83f1c5e78cbf4b8fa5e74e73beebc340de"
 "checksum reqwest 0.9.22 (registry+https://github.com/rust-lang/crates.io-index)" = "2c2064233e442ce85c77231ebd67d9eca395207dec2127fe0bbedde4bd29a650"
-"checksum rfc2047 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "6986b5de4fa30c92b50020fdedf45bf9296d9842df4355b62f92dcc18bcdee15"
 "checksum ring 0.16.9 (registry+https://github.com/rust-lang/crates.io-index)" = "6747f8da1f2b1fabbee1aaa4eb8a11abf9adef0bf58a41cee45db5d59cecdfac"
 "checksum ripemd160 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ad5112e0dbbb87577bfbc56c42450235e3012ce336e29c5befd7807bd626da4a"
 "checksum rsa 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "5108a8bbfb84fe77d829d77d5a89255dcd189dfe5c4de5a33d0a47f12808bb15"

Cargo.toml

@@ -19,7 +19,6 @@ num-derive = "0.2.5"
 num-traits = "0.2.6"
 lettre = { git = "https://github.com/deltachat/lettre", branch = "feat/mail" }
 lettre_email = { git = "https://github.com/deltachat/lettre", branch = "feat/mail" }
-rfc2047 = "0.1.1"
 async-imap = { git = "https://github.com/async-email/async-imap", branch="master" }
 async-tls = "0.6"
 async-std = { version = "1.0", features = ["unstable"] }
@@ -55,6 +54,7 @@ rustls = "0.16.0"
 webpki-roots = "0.18.0"
 webpki = "0.21.0"
 mailparse = "0.10.1"
+quoted_printable = "0.4.1"
 
 [dev-dependencies]
 tempfile = "3.0"

src/mimefactory.rs

@@ -1,6 +1,5 @@
 use chrono::TimeZone;
 use lettre_email::{mime, Address, Header, MimeMultipartType, PartBuilder};
-use rfc2047::rfc2047_encode;
 
 use crate::chat::{self, Chat};
 use crate::config::Config;
@@ -383,7 +382,7 @@ impl<'a, 'b> MimeFactory<'a, 'b> {
         let mut unprotected_headers: Vec<Header> = Vec::new();
 
         let from = Address::new_mailbox_with_name(
-            rfc2047_encode(&self.from_displayname).into_owned(),
+            quoted_printable::encode_to_str(&self.from_displayname),
             self.from_addr.clone(),
         );
 
@@ -395,7 +394,7 @@ impl<'a, 'b> MimeFactory<'a, 'b> {
                 to.push(Address::new_mailbox(addr.clone()));
             } else {
                 to.push(Address::new_mailbox_with_name(
-                    rfc2047_encode(name).into_owned(),
+                    quoted_printable::encode_to_str(name),
                     addr.clone(),
                 ));
             }
@@ -451,7 +450,7 @@ impl<'a, 'b> MimeFactory<'a, 'b> {
         let e2ee_guranteed = self.is_e2ee_guranteed();
         let mut encrypt_helper = EncryptHelper::new(self.context)?;
 
-        let subject = rfc2047_encode(&subject_str).into_owned();
+        let subject = quoted_printable::encode_to_str(&subject_str);
 
         let mut message = match self.loaded {
             Loaded::Message => {
@@ -611,7 +610,7 @@ impl<'a, 'b> MimeFactory<'a, 'b> {
         if chat.typ == Chattype::Group || chat.typ == Chattype::VerifiedGroup {
             protected_headers.push(Header::new("Chat-Group-ID".into(), chat.grpid.clone()));
 
-            let encoded = rfc2047_encode(&chat.name).into_owned();
+            let encoded = quoted_printable::encode_to_str(&chat.name);
             protected_headers.push(Header::new("Chat-Group-Name".into(), encoded));
 
             match command {
@@ -994,7 +993,7 @@ fn build_body_file(
         // XXX do we need to encode filenames?
         format!(
             "attachment; filename*=\"{}\"",
-            rfc2047_encode(&filename_to_send)
+            quoted_printable::encode_to_str(&filename_to_send)
         )
     };