WIP: feat: add option to process unencrypted messages

chore(cargo): bump data-encoding from 2.10.0 to 2.11.0
Bumps [data-encoding](https://github.com/ia0/data-encoding) from 2.10.0 to 2.11.0. - [Commits](https://github.com/ia0/data-encoding/compare/v2.10.0...v2.11.0) --- updated-dependencies: - dependency-name: data-encoding dependency-version: 2.11.0 dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com>
2026-05-07 17:06:35 +03:00 · 2026-05-07 09:36:42 +02:00 · 2026-05-04 14:10:58 -03:00 · 2026-05-04 13:42:52 -03:00
8 changed files with 39 additions and 199 deletions
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -934,9 +934,9 @@ checksum = "3d7b894f5411737b7867f4827955924d7c254fc9f4d91a6aad6b097804b1018b"

 [[package]]
 name = "colorutils-rs"
-version = "0.7.6"
+version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6e2fc25857fa523662de5cae84225b0e7bfb24a2a3f9ed8802fecf03df7252b1"
+checksum = "69abc9a8ed011e2b7946769f460b9e76e8b659ece9ef4001b9d8bba3489f796d"
 dependencies = [
 "erydanos",
 "half",
@@ -1301,9 +1301,9 @@ dependencies = [

 [[package]]
 name = "data-encoding"
-version = "2.10.0"
+version = "2.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d7a1e2f27636f116493b8b860f5546edb47c8d8f8ea73e1d2a20be88e28d1fea"
+checksum = "a4ae5f15dda3c708c0ade84bfee31ccab44a3da4f88015ed22f63732abe300c8"

 [[package]]
 name = "dbl"
@@ -2289,24 +2289,11 @@ dependencies = [
 "cfg-if",
 "js-sys",
 "libc",
- "r-efi 5.2.0",
+ "r-efi",
 "wasi 0.14.2+wasi-0.2.4",
 "wasm-bindgen",
 ]

-[[package]]
-name = "getrandom"
-version = "0.4.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0de51e6874e94e7bf76d726fc5d13ba782deca734ff60d5bb2fb2607c7406555"
-dependencies = [
- "cfg-if",
- "libc",
- "r-efi 6.0.0",
- "wasip2",
- "wasip3",
-]
-
 [[package]]
 name = "ghash"
 version = "0.5.1"
@@ -2822,12 +2809,6 @@ dependencies = [
 "syn 2.0.117",
 ]

-[[package]]
-name = "id-arena"
-version = "2.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3d3067d79b975e8844ca9eb072e16b31c3c1c36928edf9c6789548c524d0d954"
-
 [[package]]
 name = "idea"
 version = "0.5.1"
@@ -2930,8 +2911,6 @@ checksum = "4b0f83760fb341a774ed326568e19f5a863af4a952def8c39f9ab92fd95b88e5"
 dependencies = [
 "equivalent",
 "hashbrown",
- "serde",
- "serde_core",
 ]

 [[package]]
@@ -3287,12 +3266,6 @@ dependencies = [
 "spin 0.9.8",
 ]

-[[package]]
-name = "leb128fmt"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09edd9e8b54e49e587e4f6295a7d29c3ea94d469cb40ab8ca70b288248a81db2"
-
 [[package]]
 name = "libc"
 version = "0.2.186"
@@ -4590,16 +4563,6 @@ dependencies = [
 "yansi",
 ]

-[[package]]
-name = "prettyplease"
-version = "0.2.37"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "479ca8adacdd7ce8f1fb39ce9ecccbfe93a3f1344b3d0d97f20bc0196208f62b"
-dependencies = [
- "proc-macro2",
- "syn 2.0.117",
-]
-
 [[package]]
 name = "primeorder"
 version = "0.13.6"
@@ -4803,12 +4766,6 @@ version = "5.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "74765f6d916ee2faa39bc8e68e4f3ed8949b48cccdac59983d287a7cb71ce9c5"

-[[package]]
-name = "r-efi"
-version = "6.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f8dcc9c7d52a811697d2151c701e0d08956f92b0e24136cf4cf27b57a6a0d9bf"
-
 [[package]]
 name = "radium"
 version = "0.7.0"
@@ -6634,11 +6591,11 @@ checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"

 [[package]]
 name = "uuid"
-version = "1.23.1"
+version = "1.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ddd74a9687298c6858e9b88ec8935ec45d22e8fd5e6394fa1bd4e99a87789c76"
+checksum = "ee48d38b119b0cd71fe4141b30f5ba9c7c5d9f4e7a3a8b4a674e4b6ef789976f"
 dependencies = [
- "getrandom 0.4.2",
+ "getrandom 0.3.3",
 "js-sys",
 "serde_core",
 "wasm-bindgen",
@@ -6696,24 +6653,6 @@ dependencies = [
 "wit-bindgen-rt",
 ]

-[[package]]
-name = "wasip2"
-version = "1.0.3+wasi-0.2.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "20064672db26d7cdc89c7798c48a0fdfac8213434a1186e5ef29fd560ae223d6"
-dependencies = [
- "wit-bindgen 0.57.1",
-]
-
-[[package]]
-name = "wasip3"
-version = "0.4.0+wasi-0.3.0-rc-2026-01-06"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5428f8bf88ea5ddc08faddef2ac4a67e390b88186c703ce6dbd955e1c145aca5"
-dependencies = [
- "wit-bindgen 0.51.0",
-]
-
 [[package]]
 name = "wasite"
 version = "0.1.0"
@@ -6791,28 +6730,6 @@ dependencies = [
 "unicode-ident",
 ]

-[[package]]
-name = "wasm-encoder"
-version = "0.244.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "990065f2fe63003fe337b932cfb5e3b80e0b4d0f5ff650e6985b1048f62c8319"
-dependencies = [
- "leb128fmt",
- "wasmparser",
-]
-
-[[package]]
-name = "wasm-metadata"
-version = "0.244.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bb0e353e6a2fbdc176932bbaab493762eb1255a7900fe0fea1a2f96c296cc909"
-dependencies = [
- "anyhow",
- "indexmap",
- "wasm-encoder",
- "wasmparser",
-]
-
 [[package]]
 name = "wasm-streams"
 version = "0.4.1"
@@ -6826,18 +6743,6 @@ dependencies = [
 "web-sys",
 ]

-[[package]]
-name = "wasmparser"
-version = "0.244.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "47b807c72e1bac69382b3a6fb3dbe8ea4c0ed87ff5629b8685ae6b9a611028fe"
-dependencies = [
- "bitflags 2.11.0",
- "hashbrown",
- "indexmap",
- "semver",
-]
-
 [[package]]
 name = "web-sys"
 version = "0.3.77"
@@ -7333,32 +7238,6 @@ dependencies = [
 "windows-sys 0.48.0",
 ]

-[[package]]
-name = "wit-bindgen"
-version = "0.51.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d7249219f66ced02969388cf2bb044a09756a083d0fab1e566056b04d9fbcaa5"
-dependencies = [
- "wit-bindgen-rust-macro",
-]
-
-[[package]]
-name = "wit-bindgen"
-version = "0.57.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1ebf944e87a7c253233ad6766e082e3cd714b5d03812acc24c318f549614536e"
-
-[[package]]
-name = "wit-bindgen-core"
-version = "0.51.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea61de684c3ea68cb082b7a88508a8b27fcc8b797d738bfc99a82facf1d752dc"
-dependencies = [
- "anyhow",
- "heck 0.5.0",
- "wit-parser",
-]
-
 [[package]]
 name = "wit-bindgen-rt"
 version = "0.39.0"
@@ -7368,74 +7247,6 @@ dependencies = [
 "bitflags 2.11.0",
 ]

-[[package]]
-name = "wit-bindgen-rust"
-version = "0.51.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b7c566e0f4b284dd6561c786d9cb0142da491f46a9fbed79ea69cdad5db17f21"
-dependencies = [
- "anyhow",
- "heck 0.5.0",
- "indexmap",
- "prettyplease",
- "syn 2.0.117",
- "wasm-metadata",
- "wit-bindgen-core",
- "wit-component",
-]
-
-[[package]]
-name = "wit-bindgen-rust-macro"
-version = "0.51.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0c0f9bfd77e6a48eccf51359e3ae77140a7f50b1e2ebfe62422d8afdaffab17a"
-dependencies = [
- "anyhow",
- "prettyplease",
- "proc-macro2",
- "quote",
- "syn 2.0.117",
- "wit-bindgen-core",
- "wit-bindgen-rust",
-]
-
-[[package]]
-name = "wit-component"
-version = "0.244.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9d66ea20e9553b30172b5e831994e35fbde2d165325bec84fc43dbf6f4eb9cb2"
-dependencies = [
- "anyhow",
- "bitflags 2.11.0",
- "indexmap",
- "log",
- "serde",
- "serde_derive",
- "serde_json",
- "wasm-encoder",
- "wasm-metadata",
- "wasmparser",
- "wit-parser",
-]
-
-[[package]]
-name = "wit-parser"
-version = "0.244.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ecc8ac4bc1dc3381b7f59c34f00b67e18f910c2c0f50015669dde7def656a736"
-dependencies = [
- "anyhow",
- "id-arena",
- "indexmap",
- "log",
- "semver",
- "serde",
- "serde_derive",
- "serde_json",
- "unicode-xid",
- "wasmparser",
-]
-
 [[package]]
 name = "wmi"
 version = "0.14.5"
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -53,7 +53,7 @@ blake3 = "1.8.2"
 brotli = { version = "8", default-features=false, features = ["std"] }
 bytes = "1"
 chrono = { workspace = true, features = ["alloc", "clock", "std"] }
-colorutils-rs = { version = "0.7.5", default-features = false }
+colorutils-rs = { version = "0.8.0", default-features = false }
 data-encoding = "2.9.0"
 escaper = "0.1"
 fast-socks5 = "1"
--- a/src/chatlist.rs
+++ b/src/chatlist.rs
@@ -473,6 +473,7 @@ mod tests {
        add_contact_to_chat, create_broadcast, create_group, get_chat_contacts,
        remove_contact_from_chat, send_text_msg, set_chat_name,
    };
+    use crate::config::Config;
    use crate::receive_imf::receive_imf;
    use crate::securejoin::get_securejoin_qr;
    use crate::stock_str::StockMessage;
@@ -665,6 +666,7 @@ mod tests {
    #[tokio::test(flavor = "multi_thread", worker_threads = 2)]
    async fn test_search_single_chat() -> anyhow::Result<()> {
        let t = TestContext::new_alice().await;
+        t.set_config(Config::ProcessUnencrypted, Some("1")).await?;

        // receive a one-to-one-message
        receive_imf(
@@ -725,6 +727,7 @@ mod tests {
    #[tokio::test(flavor = "multi_thread", worker_threads = 2)]
    async fn test_search_single_chat_without_authname() -> anyhow::Result<()> {
        let t = TestContext::new_alice().await;
+        t.set_config(Config::ProcessUnencrypted, Some("1")).await?;

        // receive a one-to-one-message without authname set
        receive_imf(
--- a/src/config.rs
+++ b/src/config.rs
@@ -486,6 +486,11 @@ pub enum Config {
    /// Experimental option denoting that the current profile is shared between multiple team members.
    /// For now, the only effect of this option is that seen flags are not synchronized.
    TeamProfile,
+
+    /// Process unencrypted messages.
+    ///
+    /// Unencrypted messages are fetched and processed only if this setting is explicitly enabled.
+    ProcessUnencrypted,
 }

 impl Config {
--- a/src/context.rs
+++ b/src/context.rs
@@ -1056,6 +1056,12 @@ impl Context {
            "team_profile",
            self.get_config_bool(Config::TeamProfile).await?.to_string(),
        );
+        res.insert(
+            "process_unencrypted",
+            self.get_config_bool(Config::ProcessUnencrypted)
+                .await?
+                .to_string(),
+        );

        let elapsed = time_elapsed(&self.creation_time);
        res.insert("uptime", duration_to_str(elapsed));
--- a/src/imap.rs
+++ b/src/imap.rs
@@ -1996,12 +1996,21 @@ pub(crate) async fn prefetch_should_download(
    // prevent_rename=true as this might be a mailing list message and in this case it would be bad if we rename the contact.
    // (prevent_rename is the last argument of from_field_to_contact_id())

+    let is_encrypted = if let Some(content_type) = headers.get_header_value(HeaderDef::ContentType)
+    {
+        mailparse::parse_content_type(&content_type).mimetype == "multipart/encrypted"
+    } else {
+        false
+    };
+
    if flags.any(|f| f == Flag::Draft) {
        info!(context, "Ignoring draft message");
        return Ok(false);
    }

-    let should_download = !blocked_contact || maybe_ndn;
+    let should_download = maybe_ndn
+        || (!blocked_contact
+            && (is_encrypted || context.get_config_bool(Config::ProcessUnencrypted).await?));
    Ok(should_download)
 }

--- a/src/imap/session.rs
+++ b/src/imap/session.rs
@@ -21,6 +21,7 @@ const PREFETCH_FLAGS: &str = "(UID RFC822.SIZE BODY.PEEK[HEADER.FIELDS (\
                              DATE \
                              X-MICROSOFT-ORIGINAL-MESSAGE-ID \
                              FROM \
+                              CONTENT-TYPE \
                              CHAT-VERSION \
                              CHAT-IS-POST-MESSAGE \
                              AUTOCRYPT-SETUP-MESSAGE\
--- a/src/receive_imf.rs
+++ b/src/receive_imf.rs
@@ -505,6 +505,11 @@ pub(crate) async fn receive_imf_inner(
        Ok(mime_parser) => mime_parser,
    };

+    if !mime_parser.was_encrypted() && !context.get_config_bool(Config::ProcessUnencrypted).await? {
+        warn!(context, "Fetched unencrypted message, ignoring");
+        return trash().await;
+    }
+
    let rfc724_mid_orig = &mime_parser
        .get_rfc724_mid()
        .unwrap_or(rfc724_mid.to_string());