core_crypto_ffi/error/
mls.rs

1use core_crypto::InnermostErrorMessage as _;
2
3#[derive(Debug, thiserror::Error)]
4#[cfg_attr(target_family = "wasm", derive(strum::AsRefStr))]
5#[cfg_attr(not(target_family = "wasm"), derive(uniffi::Error))]
6pub enum MlsError {
7    #[error("Conversation already exists")]
8    ConversationAlreadyExists(core_crypto::prelude::ConversationId),
9    #[error("We already decrypted this message once")]
10    DuplicateMessage,
11    #[error("Incoming message is for a future epoch. We will buffer it until the commit for that epoch arrives")]
12    BufferedFutureMessage,
13    #[error("Incoming message is from an epoch too far in the future to buffer.")]
14    WrongEpoch,
15    #[error(
16        "Incoming message is a commit for which we have not yet received all the proposals. Buffering until all proposals have arrived."
17    )]
18    BufferedCommit,
19    #[error("The epoch in which message was encrypted is older than allowed")]
20    MessageEpochTooOld,
21    #[error("Tried to decrypt a commit created by self which is likely to have been replayed by the DS")]
22    SelfCommitIgnored,
23    #[error(
24        "You tried to join with an external commit but did not merge it yet. We will reapply this message for you when you merge your external commit"
25    )]
26    UnmergedPendingGroup,
27    #[error("The received proposal is deemed stale and is from an older epoch.")]
28    StaleProposal,
29    #[error("The received commit is deemed stale and is from an older epoch.")]
30    StaleCommit,
31    /// This happens when the DS cannot flag KeyPackages as claimed or not. It this scenario, a client
32    /// requests their old KeyPackages to be deleted but one has already been claimed by another client to create a Welcome.
33    /// In that case the only solution is that the client receiving such a Welcome tries to join the group
34    /// with an External Commit instead
35    #[error(
36        "Although this Welcome seems valid, the local KeyPackage it references has already been deleted locally. Join this group with an external commit"
37    )]
38    OrphanWelcome,
39    /// Message rejected by the delivery service
40    #[error("Message rejected by the delivery service. Reason: {reason}")]
41    MessageRejected {
42        /// Why was the message rejected by the delivery service?
43        reason: String,
44    },
45    #[error("{0}")]
46    Other(String),
47}
48
49impl From<core_crypto::MlsError> for MlsError {
50    #[inline]
51    fn from(e: core_crypto::MlsError) -> Self {
52        Self::Other(e.innermost_error_message())
53    }
54}
core_crypto_ffi/error/mls.rs

core_crypto_ffi/error/
mls.rs
