crypto: Add some more accessors to the sas structs

matrix_sdk/src/sas.rs

@@ -15,6 +15,7 @@
 use matrix_sdk_base::crypto::{
     AcceptSettings, OutgoingVerificationRequest, ReadOnlyDevice, Sas as BaseSas,
 };
+use ruma::UserId;
 
 use crate::{error::Result, Client};
 
@@ -43,14 +44,19 @@ impl Sas {
     /// # use matrix_sdk::Client;
     /// # use futures::executor::block_on;
     /// # use url::Url;
+    /// # use ruma::identifiers::user_id;
     /// use matrix_sdk::Sas;
     /// use matrix_sdk_base::crypto::AcceptSettings;
     /// use matrix_sdk::events::key::verification::ShortAuthenticationString;
     /// # let homeserver = Url::parse("http://example.com").unwrap();
     /// # let client = Client::new(homeserver).unwrap();
     /// # let flow_id = "someID";
+    /// # let user_id = user_id!("@alice:example");
     /// # block_on(async {
-    /// let sas = client.get_verification(flow_id).await.unwrap();
+    /// let sas = client
+    ///     .get_verification(&user_id, flow_id)
+    ///     .await
+    ///     .unwrap();
     ///
     /// let only_decimal = AcceptSettings::with_allowed_methods(
     ///     vec![ShortAuthenticationString::Decimal]
@@ -141,4 +147,19 @@ impl Sas {
     pub fn other_device(&self) -> &ReadOnlyDevice {
         self.inner.other_device()
     }
+
+    /// Did this verification flow start from a verification request.
+    pub fn started_from_request(&self) -> bool {
+        self.inner.started_from_request()
+    }
+
+    /// Is this a verification that is veryfying one of our own devices.
+    pub fn is_self_verification(&self) -> bool {
+        self.inner.is_self_verification()
+    }
+
+    /// Get our own user id.
+    pub fn own_user_id(&self) -> &UserId {
+        self.inner.user_id()
+    }
 }

matrix_sdk_crypto/src/verification/mod.rs

@@ -240,6 +240,10 @@ impl IdentitiesBeingVerified {
         self.private_identity.user_id()
     }
 
+    fn is_self_verification(&self) -> bool {
+        self.user_id() == self.other_user_id()
+    }
+
     fn other_user_id(&self) -> &UserId {
         self.device_being_verified.user_id()
     }
@@ -370,8 +374,6 @@ impl IdentitiesBeingVerified {
             return Ok(None);
         }
 
-        // TODO signal an error, e.g. when the identity got deleted so we don't
-        // verify/save the device either.
         let identity = self.store.get_user_identity(self.other_user_id()).await?;
 
         if let Some(identity) = identity {

matrix_sdk_crypto/src/verification/sas/inner_sas.rs

@@ -61,6 +61,20 @@ impl InnerSas {
         (InnerSas::Created(sas), content.into())
     }
 
+    pub fn started_from_request(&self) -> bool {
+        match self {
+            InnerSas::Created(s) => s.started_from_request,
+            InnerSas::Started(s) => s.started_from_request,
+            InnerSas::Accepted(s) => s.started_from_request,
+            InnerSas::KeyReceived(s) => s.started_from_request,
+            InnerSas::Confirmed(s) => s.started_from_request,
+            InnerSas::MacReceived(s) => s.started_from_request,
+            InnerSas::WaitingForDone(s) => s.started_from_request,
+            InnerSas::Done(s) => s.started_from_request,
+            InnerSas::Cancelled(s) => s.started_from_request,
+        }
+    }
+
     pub fn supports_emoji(&self) -> bool {
         match self {
             InnerSas::Created(_) => false,

matrix_sdk_crypto/src/verification/sas/mod.rs

@@ -49,8 +49,8 @@ use crate::{
     ReadOnlyAccount, ToDeviceRequest,
 };
 
-#[derive(Clone, Debug)]
 /// Short authentication string object.
+#[derive(Clone, Debug)]
 pub struct Sas {
     inner: Arc<Mutex<InnerSas>>,
     account: ReadOnlyAccount,
@@ -95,6 +95,16 @@ impl Sas {
         self.inner.lock().unwrap().supports_emoji()
     }
 
+    /// Did this verification flow start from a verification request.
+    pub fn started_from_request(&self) -> bool {
+        self.inner.lock().unwrap().started_from_request()
+    }
+
+    /// Is this a verification that is veryfying one of our own devices.
+    pub fn is_self_verification(&self) -> bool {
+        self.identities_being_verified.is_self_verification()
+    }
+
     #[cfg(test)]
     #[allow(dead_code)]
     pub(crate) fn set_creation_time(&self, time: Instant) {