71 lines
2.6 KiB
Rust
71 lines
2.6 KiB
Rust
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// Copyright 2020 The Matrix.org Foundation C.I.C.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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use cjson::Error as CjsonError;
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use olm_rs::errors::{OlmGroupSessionError, OlmSessionError};
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use serde_json::Error as SerdeError;
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use thiserror::Error;
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use super::store::CryptoStoreError;
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pub type Result<T> = std::result::Result<T, OlmError>;
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#[derive(Error, Debug)]
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pub enum OlmError {
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#[error("signature verification failed")]
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Signature(#[from] SignatureError),
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#[error("failed to read or write to the crypto store {0}")]
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Store(#[from] CryptoStoreError),
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#[error("decryption failed likely because a Olm session was wedged")]
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SessionWedged,
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#[error("the Olm message has a unsupported type")]
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UnsupportedOlmType,
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#[error("the Encrypted message has been encrypted with a unsupported algorithm.")]
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UnsupportedAlgorithm,
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#[error("the Encrypted message doesn't contain a ciphertext for our device")]
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MissingCiphertext,
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#[error("decryption failed because the session to decrypt the message is missing")]
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MissingSession,
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#[error("the Encrypted message is missing the signing key of the sender")]
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MissingSigningKey,
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#[error("can't finish Olm Session operation {0}")]
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OlmSession(#[from] OlmSessionError),
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#[error("can't finish Olm Session operation {0}")]
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OlmGroupSession(#[from] OlmGroupSessionError),
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#[error("error deserializing a string to json")]
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JsonError(#[from] SerdeError),
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#[error("the provided JSON value isn't an object")]
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NotAnObject,
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}
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pub type VerificationResult<T> = std::result::Result<T, SignatureError>;
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#[derive(Error, Debug)]
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pub enum SignatureError {
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#[error("the provided JSON value isn't an object")]
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NotAnObject,
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#[error("the provided JSON object doesn't contain a signatures field")]
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NoSignatureFound,
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#[error("the provided JSON object can't be converted to a canonical representation")]
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CanonicalJsonError(CjsonError),
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#[error("the signature didn't match the provided key")]
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VerificationError,
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}
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impl From<CjsonError> for SignatureError {
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fn from(error: CjsonError) -> Self {
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Self::CanonicalJsonError(error)
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}
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}
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