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fix key encodings again (#1089)

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This commit is contained in:
Conrad Ludgate 2023-07-08 21:11:25 +01:00 committed by GitHub
parent eb5e1c213c
commit 8c94d798c6
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 19 additions and 11 deletions
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2
atuin-client/Cargo.toml
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@ -1,6 +1,6 @@
[package]
name = "atuin-client"
edition = "2018"
edition = "2021"
description = "client library for atuin"
version = { workspace = true }

28
atuin-client/src/encryption.rs
View File

@ -12,7 +12,7 @@ use std::{io::prelude::*, path::PathBuf};
use base64::prelude::{Engine, BASE64_STANDARD};
use chrono::{DateTime, Utc};
use eyre::{bail, eyre, Context, Result};
use eyre::{bail, ensure, eyre, Context, Result};
use fs_err as fs;
use rmp::{decode::Bytes, Marker};
use serde::{Deserialize, Serialize};
@ -58,8 +58,12 @@ pub fn load_key(settings: &Settings) -> Result<Key> {
pub fn encode_key(key: &Key) -> Result<String> {
let mut buf = vec![];
rmp::encode::write_bin(&mut buf, key.as_slice())
rmp::encode::write_array_len(&mut buf, key.len() as u32)
.wrap_err("could not encode key to message pack")?;
for b in key {
rmp::encode::write_uint(&mut buf, *b as u64)
.wrap_err("could not encode key to message pack")?;
}
let buf = BASE64_STANDARD.encode(buf);
Ok(buf)
@ -72,15 +76,19 @@ pub fn decode_key(key: String) -> Result<Key> {
// old code wrote the key as a fixed length array of 32 bytes
// new code writes the key with a length prefix
if buf.len() == 32 {
Ok(*Key::from_slice(&buf))
} else {
let mut bytes = Bytes::new(&buf);
let key_len = rmp::decode::read_bin_len(&mut bytes).map_err(error_report)?;
if key_len != 32 || bytes.remaining_slice().len() != key_len as usize {
bail!("encryption key is not the correct size")
match <[u8; 32]>::try_from(&*buf) {
Ok(key) => Ok(key.into()),
Err(_) => {
let mut bytes = rmp::decode::Bytes::new(&buf);
let key_len =
rmp::decode::read_array_len(&mut bytes).map_err(|err| eyre!("{err:?}"))?;
ensure!(key_len == 32, "encryption key is not the correct size");
let mut key = Key::default();
for i in &mut key {
*i = rmp::decode::read_int(&mut bytes).map_err(|err| eyre!("{err:?}"))?;
}
Ok(key)
}
Ok(*Key::from_slice(bytes.remaining_slice()))
}
}