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use std::{collections::HashMap, str::FromStr, time::Duration};
use serde::{Deserialize, Serialize};
use zeroize::{Zeroize, ZeroizeOnDrop, Zeroizing};
use super::{
Error, LockedItem,
api::{EncryptedItem, GVARIANT_ENCODING},
};
use crate::{AsAttributes, CONTENT_TYPE_ATTRIBUTE, Key, Secret, crypto, secret::ContentType};
/// An item stored in the file backend.
#[derive(
Deserialize, Serialize, zvariant::Type, Clone, Debug, Zeroize, ZeroizeOnDrop, PartialEq,
)]
pub struct UnlockedItem {
#[zeroize(skip)]
attributes: HashMap<String, String>,
label: String,
created: u64,
modified: u64,
#[serde(with = "serde_bytes")]
secret: Vec<u8>,
}
impl UnlockedItem {
pub(crate) fn new(
label: impl ToString,
attributes: &impl AsAttributes,
secret: impl Into<Secret>,
) -> Self {
let now = std::time::SystemTime::UNIX_EPOCH
.elapsed()
.unwrap()
.as_secs();
let mut item_attributes = attributes.as_attributes();
let secret = secret.into();
// Set default MIME type if not provided
if !item_attributes.contains_key(CONTENT_TYPE_ATTRIBUTE) {
item_attributes.insert(
CONTENT_TYPE_ATTRIBUTE.to_owned(),
secret.content_type().as_str().to_string(),
);
Self {
attributes: item_attributes,
label: label.to_string(),
created: now,
modified: now,
secret: secret.as_bytes().to_vec(),
/// Retrieve the item attributes.
pub fn attributes(&self) -> &HashMap<String, String> {
&self.attributes
/// Retrieve the item attributes as a typed schema.
///
/// # Example
/// ```no_run
/// # use oo7::{SecretSchema, file::UnlockedItem};
/// # #[derive(SecretSchema, Debug)]
/// # #[schema(name = "org.example.Password")]
/// # struct PasswordSchema {
/// # username: String,
/// # server: String,
/// # }
/// # fn example(item: &UnlockedItem) -> Result<(), oo7::file::Error> {
/// let schema = item.attributes_as::<PasswordSchema>()?;
/// println!("Username: {}", schema.username);
/// # Ok(())
/// ```
#[cfg(feature = "schema")]
#[cfg_attr(docsrs, doc(cfg(feature = "schema")))]
pub fn attributes_as<T>(&self) -> Result<T, Error>
where
T: for<'a> std::convert::TryFrom<&'a HashMap<String, String>, Error = crate::SchemaError>,
{
T::try_from(&self.attributes).map_err(Into::into)
/// Update the item attributes.
pub fn set_attributes(&mut self, attributes: &impl AsAttributes) {
let mut new_attributes = attributes.as_attributes();
// Preserve MIME type if not explicitly set in new attributes
if !new_attributes.contains_key(CONTENT_TYPE_ATTRIBUTE) {
if let Some(existing_mime_type) = self.attributes.get(CONTENT_TYPE_ATTRIBUTE) {
new_attributes.insert(
CONTENT_TYPE_ATTRIBUTE.to_string(),
existing_mime_type.clone(),
} else {
ContentType::default().as_str().to_string(),
self.attributes = new_attributes;
self.modified = std::time::SystemTime::UNIX_EPOCH
/// The item label.
pub fn label(&self) -> &str {
&self.label
/// Set the item label.
pub fn set_label(&mut self, label: impl ToString) {
self.label = label.to_string();
/// Retrieve the currently stored secret.
pub fn secret(&self) -> Secret {
let content_type = self
.attributes
.get(CONTENT_TYPE_ATTRIBUTE)
.and_then(|c| ContentType::from_str(c).ok())
.unwrap_or_default();
Secret::with_content_type(content_type, &self.secret)
/// Store a new secret.
pub fn set_secret(&mut self, secret: impl Into<Secret>) {
self.secret = secret.into().as_bytes().to_vec();
/// The UNIX time when the item was created.
pub const fn created(&self) -> Duration {
Duration::from_secs(self.created)
/// The UNIX time when the item was modified.
pub const fn modified(&self) -> Duration {
Duration::from_secs(self.modified)
/// Lock the item with the given key.
pub fn lock(self, key: &Key) -> Result<LockedItem, Error> {
let inner = self.encrypt(key)?;
Ok(LockedItem { inner })
pub(crate) fn encrypt(&self, key: &Key) -> Result<EncryptedItem, Error> {
key.check_strength()?;
let iv = crypto::generate_iv()?;
self.encrypt_inner(key, &iv)
fn encrypt_inner(&self, key: &Key, iv: &[u8]) -> Result<EncryptedItem, Error> {
let decrypted = Zeroizing::new(zvariant::to_bytes(*GVARIANT_ENCODING, &self)?.to_vec());
let mut blob = crypto::encrypt(&*decrypted, key, iv)?;
blob.extend_from_slice(iv);
let mac = crypto::compute_mac(&blob, key)?;
blob.extend_from_slice(mac.as_slice());
let hashed_attributes = self
.iter()
.filter_map(|(k, v)| Some((k.to_owned(), crypto::compute_mac(v.as_bytes(), key).ok()?)))
.collect();
Ok(EncryptedItem {
hashed_attributes,
blob,
})
impl TryFrom<&[u8]> for UnlockedItem {
type Error = Error;
fn try_from(value: &[u8]) -> Result<Self, Error> {
let mut item: UnlockedItem = zvariant::serialized::Data::new(value, *GVARIANT_ENCODING)
.deserialize()?
.0;
// Ensure MIME type attribute exists for backward compatibility
if !item.attributes.contains_key(CONTENT_TYPE_ATTRIBUTE) {
item.attributes.insert(
Ok(item)
#[cfg(test)]
mod tests {
use super::*;
#[tokio::test]
async fn set_label() {
let mut item = UnlockedItem::new(
"Original Label",
&[("service", "test-service")],
Secret::text("secret"),
let original_modified = item.modified();
tokio::time::sleep(Duration::from_secs(1)).await;
item.set_label("New Label");
assert_eq!(item.label(), "New Label");
assert!(item.modified() > original_modified);
assert_eq!(item.secret().as_bytes(), b"secret");
assert_eq!(item.attributes().get("service").unwrap(), "test-service");
async fn set_secret_text() {
"Test Item",
Secret::text("original"),
item.set_secret(Secret::text("new secret"));
assert_eq!(item.secret().as_bytes(), b"new secret");
assert_eq!(item.label(), "Test Item");
async fn set_secret_blob() {
"Binary Item",
&[("type", "binary")],
Secret::blob(b"binary data"),
item.set_secret(Secret::blob(b"new binary data"));
assert_eq!(item.secret().as_bytes(), b"new binary data");
assert_eq!(item.label(), "Binary Item");
async fn created_timestamp() {
let item = UnlockedItem::new(
"Timestamp Test",
&[("test", "timestamp")],
Secret::text("data"),
let created_time = item.created();
assert!(created_time.as_secs() > 0);
let modified_time = item.modified();
assert_eq!(created_time, modified_time);
async fn modified_timestamp_updates() {
"Modification Test",
&[("test", "modification")],
let original_created = item.created();
item.set_label("Updated Label");
assert_eq!(item.created(), original_created);
let mid_modified = item.modified();
item.set_secret(Secret::text("updated secret"));
assert!(item.modified() > mid_modified);
#[test]
fn serialization() {
let key = Key::new(vec![
204, 53, 139, 40, 55, 167, 183, 240, 191, 252, 186, 174, 28, 36, 229, 26,
]);
let n_mac = crypto::mac_len();
let n_iv = crypto::iv_len();
let iv = vec![0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0];
assert_eq!(iv.len(), n_iv);
let attribute_value = "5".to_string();
let attribute_value_mac = crypto::compute_mac(attribute_value.as_bytes(), &key).unwrap();
let mut item = UnlockedItem {
attributes: HashMap::from([("fooness".to_string(), attribute_value)]),
label: "foo".to_string(),
created: 50,
modified: 50,
secret: b"bar".to_vec(),
let encrypted = item.encrypt_inner(&key, &iv).unwrap();
assert!(encrypted.has_attribute("fooness", &attribute_value_mac));
let blob = &encrypted.blob;
let n = blob.len();
// encrypted.blob should be the concatenation of the encrypted data, the
// iv, and the mac.
let encrypted_item_blob = &encrypted.blob[..n - n_mac - n_iv];
let item_mac = crypto::compute_mac(&encrypted.blob[..n - n_mac], &key).unwrap();
assert_eq!(&blob[n - n_mac..], item_mac.as_slice());
assert_eq!(&blob[n - n_mac - n_iv..n - n_mac], &iv);
assert_eq!(
encrypted_item_blob,
vec![
196, 246, 127, 53, 194, 30, 176, 37, 128, 145, 195, 96, 211, 161, 60, 150, 160,
126, 85, 125, 85, 238, 5, 93, 153, 128, 176, 205, 31, 87, 48, 82, 121, 230, 143,
152, 153, 193, 182, 114, 59, 157, 85, 41, 50, 1, 142, 112
]
let decrypted = encrypted.decrypt(&key).unwrap();
// The decrypted item matches the original one but with the content-type
// attribute set.
crate::CONTENT_TYPE_ATTRIBUTE.to_string(),
crate::secret::ContentType::Blob.as_str().to_string(),
assert_eq!(decrypted, item);