Merge branch 'master' into state-store

src/async_client.rs

@@ -722,7 +722,6 @@ impl<State, E> AsyncClient<State, E> {
 
             callback(response).await;
 
-            // TODO query keys here.
             // TODO send out to-device messages here
 
             #[cfg(feature = "encryption")]

src/crypto/device.rs

@@ -13,6 +13,7 @@
 // limitations under the License.
 
 use std::collections::HashMap;
+use std::mem;
 use std::sync::atomic::{AtomicBool, Ordering};
 use std::sync::Arc;
 
@@ -26,8 +27,6 @@ use crate::identifiers::{DeviceId, UserId};
 pub struct Device {
     user_id: Arc<UserId>,
     device_id: Arc<DeviceId>,
-    // TODO the algorithm and the keys might change, so we can't make them read
-    // only here. Perhaps dashmap and a rwlock on the algorithms.
     algorithms: Arc<Vec<Algorithm>>,
     keys: Arc<HashMap<KeyAlgorithm, String>>,
     display_name: Arc<Option<String>>,
@@ -115,6 +114,40 @@ impl Device {
     pub fn algorithms(&self) -> &[Algorithm] {
         &self.algorithms
     }
+
+    /// Is the device deleted.
+    pub fn deleted(&self) -> bool {
+        self.deleted.load(Ordering::Relaxed)
+    }
+
+    /// Update a device with a new device keys struct.
+    pub(crate) fn update_device(&mut self, device_keys: &DeviceKeys) {
+        let mut keys = HashMap::new();
+
+        for (key_id, key) in device_keys.keys.iter() {
+            let key_id = key_id.0;
+            keys.insert(key_id, key.clone());
+        }
+
+        let display_name = Arc::new(
+            device_keys
+                .unsigned
+                .as_ref()
+                .map(|d| d.device_display_name.clone()),
+        );
+
+        mem::replace(
+            &mut self.algorithms,
+            Arc::new(device_keys.algorithms.clone()),
+        );
+        mem::replace(&mut self.keys, Arc::new(keys));
+        mem::replace(&mut self.display_name, display_name);
+    }
+
+    /// Mark the device as deleted.
+    pub(crate) fn mark_as_deleted(&self) {
+        self.deleted.store(true, Ordering::Relaxed);
+    }
 }
 
 impl From<&DeviceKeys> for Device {
@@ -158,7 +191,7 @@ pub(crate) mod test {
     use crate::crypto::device::{Device, TrustState};
     use crate::identifiers::UserId;
 
-    pub(crate) fn get_device() -> Device {
+    fn device_keys() -> DeviceKeys {
         let user_id = UserId::try_from("@alice:example.org").unwrap();
         let device_id = "DEVICEID";
 
@@ -183,8 +216,11 @@ pub(crate) mod test {
           }
         });
 
-        let device_keys: DeviceKeys = serde_json::from_value(device_keys).unwrap();
+        serde_json::from_value(device_keys).unwrap()
+    }
 
+    pub(crate) fn get_device() -> Device {
+        let device_keys = device_keys();
         Device::from(&device_keys)
     }
 
@@ -212,4 +248,36 @@ pub(crate) mod test {
             "nE6W2fCblxDcOFmeEtCHNl8/l8bXcu7GKyAswA4r3mM"
         );
     }
+
+    #[test]
+    fn update_a_device() {
+        let mut device = get_device();
+
+        assert_eq!(
+            "Alice's mobile phone",
+            device.display_name().as_ref().unwrap()
+        );
+
+        let mut device_keys = device_keys();
+        device_keys.unsigned.as_mut().unwrap().device_display_name =
+            "Alice's work computer".to_owned();
+        device.update_device(&device_keys);
+
+        assert_eq!(
+            "Alice's work computer",
+            device.display_name().as_ref().unwrap()
+        );
+    }
+
+    #[test]
+    fn delete_a_device() {
+        let device = get_device();
+        assert!(!device.deleted());
+
+        let device_clone = device.clone();
+
+        device.mark_as_deleted();
+        assert!(device.deleted());
+        assert!(device_clone.deleted());
+    }
 }

src/crypto/machine.rs

@@ -342,15 +342,17 @@ impl OlmMachine {
 
     /// Receive a successful keys query response.
     ///
+    /// Returns a list of devices newly discovered devices and devices that
+    /// changed.
+    ///
     /// # Arguments
     ///
     /// * `response` - The keys query response of the request that the client
     /// performed.
-    // TODO this should return a list of changed devices.
     pub async fn receive_keys_query_response(
         &mut self,
         response: &keys::get_keys::Response,
-    ) -> Result<()> {
+    ) -> Result<Vec<Device>> {
         let mut changed_devices = Vec::new();
 
         for (user_id, device_map) in &response.device_keys {
@@ -370,20 +372,15 @@ impl OlmMachine {
                     continue;
                 }
 
-                // let curve_key_id =
-                //     AlgorithmAndDeviceId(KeyAlgorithm::Curve25519, device_id.to_owned());
                 let ed_key_id = AlgorithmAndDeviceId(KeyAlgorithm::Ed25519, device_id.to_owned());
 
-                // TODO check if the curve key changed for an existing device.
-                // let sender_key = if let Some(k) = device_keys.keys.get(&curve_key_id) {
-                //     k
-                // } else {
-                //     continue;
-                // };
-
                 let signing_key = if let Some(k) = device_keys.keys.get(&ed_key_id) {
                     k
                 } else {
+                    warn!(
+                        "Ed25519 identity key wasn't found for user/device {} {}",
+                        user_id, device_id
+                    );
                     continue;
                 };
 
@@ -398,19 +395,28 @@ impl OlmMachine {
                     continue;
                 }
 
-                let device = self
-                    .store
-                    .get_device(&user_id, device_id)
-                    .await
-                    .expect("Can't load device");
+                let device = self.store.get_device(&user_id, device_id).await?;
 
-                if let Some(_d) = device {
-                    // TODO check what and if anything changed for the device.
+                let device = if let Some(mut d) = device {
+                    let stored_signing_key = d.get_key(&KeyAlgorithm::Ed25519);
+
+                    if let Some(stored_signing_key) = stored_signing_key {
+                        if stored_signing_key != signing_key {
+                            warn!("Ed25519 key has changed for {} {}", user_id, device_id);
+                            continue;
+                        }
+                    }
+
+                    d.update_device(device_keys);
+
+                    d
                 } else {
                     let device = Device::from(device_keys);
-                    info!("Found new device {:?}", device);
-                    changed_devices.push(device);
-                }
+                    info!("Adding a new device to the device store {:?}", device);
+                    device
+                };
+
+                changed_devices.push(device);
             }
 
             let current_devices: HashSet<&DeviceId> = device_map.keys().collect();
@@ -419,16 +425,20 @@ impl OlmMachine {
 
             let deleted_devices = stored_devices_set.difference(&current_devices);
 
-            for _device_id in deleted_devices {
-                // TODO delete devices here.
+            for device_id in deleted_devices {
+                if let Some(device) = stored_devices.get(device_id) {
+                    device.mark_as_deleted();
+                    // TODO change this to a delete device.
+                    self.store.save_device(device).await?;
+                }
             }
         }
 
-        for device in changed_devices {
-            self.store.save_device(device).await.unwrap();
+        for device in &changed_devices {
+            self.store.save_device(device.clone()).await?;
         }
 
-        Ok(())
+        Ok(changed_devices)
     }
 
     /// Generate new one-time keys.
@@ -1238,6 +1248,27 @@ mod test {
         keys::upload_keys::Response::try_from(data).expect("Can't parse the keys upload response")
     }
 
+    fn keys_query_response() -> keys::get_keys::Response {
+        let data = response_from_file("tests/data/keys_query.json");
+        keys::get_keys::Response::try_from(data).expect("Can't parse the keys upload response")
+    }
+
+    async fn get_prepared_machine() -> OlmMachine {
+        let mut machine = OlmMachine::new(&user_id(), DEVICE_ID).unwrap();
+        machine.uploaded_signed_key_count = Some(0);
+        let (_, _) = machine
+            .keys_for_upload()
+            .await
+            .expect("Can't prepare initial key upload");
+        let response = keys_upload_response();
+        machine
+            .receive_keys_upload_response(&response)
+            .await
+            .unwrap();
+
+        machine
+    }
+
     #[tokio::test]
     async fn create_olm_machine() {
         let machine = OlmMachine::new(&user_id(), DEVICE_ID).unwrap();
@@ -1404,4 +1435,29 @@ mod test {
         let ret = machine.keys_for_upload().await;
         assert!(ret.is_err());
     }
+
+    #[tokio::test]
+    async fn test_keys_query() {
+        let mut machine = get_prepared_machine().await;
+        let response = keys_query_response();
+        let alice_id = UserId::try_from("@alice:example.org").unwrap();
+        let alice_device_id = "JLAFKJWSCS".to_owned();
+
+        let alice_devices = machine.store.get_user_devices(&alice_id).await.unwrap();
+        assert!(alice_devices.devices().peekable().peek().is_none());
+
+        machine
+            .receive_keys_query_response(&response)
+            .await
+            .unwrap();
+
+        let device = machine
+            .store
+            .get_device(&alice_id, &alice_device_id)
+            .await
+            .unwrap()
+            .unwrap();
+        assert_eq!(device.user_id(), &alice_id);
+        assert_eq!(device.device_id(), &alice_device_id);
+    }
 }

src/crypto/memory_stores.rs

@@ -185,6 +185,16 @@ impl DeviceStore {
             .and_then(|m| m.get(device_id).map(|d| d.value().clone()))
     }
 
+    /// Remove the device with the given device_id and belonging to the given user.
+    ///
+    /// Returns the device if it was removed, None if it wasn't in the store.
+    pub fn remove(&self, user_id: &UserId, device_id: &str) -> Option<Device> {
+        self.entries
+            .get(user_id)
+            .and_then(|m| m.remove(device_id))
+            .and_then(|(_, d)| Some(d))
+    }
+
     /// Get a read-only view over all devices of the given user.
     pub fn user_devices(&self, user_id: &UserId) -> UserDevices {
         if !self.entries.contains_key(user_id) {
@@ -286,5 +296,10 @@ mod test {
         let loaded_device = user_devices.get(device.device_id()).unwrap();
 
         assert_eq!(device, loaded_device);
+
+        store.remove(device.user_id(), device.device_id());
+
+        let loaded_device = store.get(device.user_id(), device.device_id());
+        assert!(loaded_device.is_none());
     }
 }

src/crypto/store/sqlite.rs

@@ -609,6 +609,7 @@ impl CryptoStore for SqliteStore {
     }
 
     async fn save_device(&self, device: Device) -> Result<()> {
+        self.devices.add(device.clone());
         self.save_device_helper(device).await
     }