From 2db1bc75c1f0924209907cc2cdaf980b4f9fc401 Mon Sep 17 00:00:00 2001
From: Andy Uhnak <andyuhnak@gmail.com>
Date: Tue, 24 Jan 2023 15:02:59 +0000
Subject: [PATCH] Expose MissingRoomKey decryption error

---
 bindings/matrix-sdk-crypto-ffi/src/error.rs | 15 +++++++++++++--
 bindings/matrix-sdk-crypto-ffi/src/olm.udl  |  1 +
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/bindings/matrix-sdk-crypto-ffi/src/error.rs b/bindings/matrix-sdk-crypto-ffi/src/error.rs
index 273e05900..8017481ee 100644
--- a/bindings/matrix-sdk-crypto-ffi/src/error.rs
+++ b/bindings/matrix-sdk-crypto-ffi/src/error.rs
@@ -59,8 +59,19 @@ pub enum DecryptionError {
     Serialization(#[from] serde_json::Error),
     #[error(transparent)]
     Identifier(#[from] IdParseError),
-    #[error(transparent)]
-    Megolm(#[from] MegolmError),
+    #[error("Megolm decryption error: {error_message}")]
+    Megolm { error_message: String },
+    #[error("Can't find the room key to decrypt the event")]
+    MissingRoomKey,
     #[error(transparent)]
     Store(#[from] InnerStoreError),
 }
+
+impl From<MegolmError> for DecryptionError {
+    fn from(value: MegolmError) -> Self {
+        match value {
+            MegolmError::MissingRoomKey => Self::MissingRoomKey,
+            _ => Self::Megolm { error_message: value.to_string() },
+        }
+    }
+}
diff --git a/bindings/matrix-sdk-crypto-ffi/src/olm.udl b/bindings/matrix-sdk-crypto-ffi/src/olm.udl
index 8c489e3d8..fc5af2038 100644
--- a/bindings/matrix-sdk-crypto-ffi/src/olm.udl
+++ b/bindings/matrix-sdk-crypto-ffi/src/olm.udl
@@ -59,6 +59,7 @@ enum DecryptionError {
     "Identifier",
     "Serialization",
     "Megolm",
+    "MissingRoomKey",
     "Store",
 };