From f4e0c6e243a09d3cdfc549e5cecce0850f8adc8e Mon Sep 17 00:00:00 2001
From: Ivan Enderlin <ivan@mnt.io>
Date: Thu, 15 Sep 2022 10:32:38 +0200
Subject: [PATCH] feat(crypto-js): Start implementing
 `OlmMachine.get_identity`.

---
 .../matrix-sdk-crypto-js/src/identifiers.rs   |  2 +-
 .../matrix-sdk-crypto-js/src/identities.rs    | 98 +++++++++++++++++++
 bindings/matrix-sdk-crypto-js/src/lib.rs      |  1 +
 bindings/matrix-sdk-crypto-js/src/machine.rs  | 13 ++-
 4 files changed, 112 insertions(+), 2 deletions(-)
 create mode 100644 bindings/matrix-sdk-crypto-js/src/identities.rs

diff --git a/bindings/matrix-sdk-crypto-js/src/identifiers.rs b/bindings/matrix-sdk-crypto-js/src/identifiers.rs
index d52b96b00..938cf2d6b 100644
--- a/bindings/matrix-sdk-crypto-js/src/identifiers.rs
+++ b/bindings/matrix-sdk-crypto-js/src/identifiers.rs
@@ -288,7 +288,7 @@ impl ServerName {
 /// [event ID]: https://spec.matrix.org/v1.2/appendices/#room-ids-and-event-ids
 #[wasm_bindgen]
 pub struct EventId {
-    inner: ruma::OwnedEventId,
+    pub(crate) inner: ruma::OwnedEventId,
 }
 
 #[wasm_bindgen]
diff --git a/bindings/matrix-sdk-crypto-js/src/identities.rs b/bindings/matrix-sdk-crypto-js/src/identities.rs
new file mode 100644
index 000000000..38fc930dc
--- /dev/null
+++ b/bindings/matrix-sdk-crypto-js/src/identities.rs
@@ -0,0 +1,98 @@
+//! User identities.
+
+use js_sys::{Array, Promise};
+use ruma::events::key::verification::VerificationMethod as RumaVerificationMethod;
+use wasm_bindgen::prelude::*;
+
+use crate::{future::future_to_promise, identifiers, impl_from_to_inner, requests, verification};
+
+pub(crate) struct UserIdentities {
+    inner: matrix_sdk_crypto::UserIdentities,
+}
+
+impl_from_to_inner!(matrix_sdk_crypto::UserIdentities => UserIdentities);
+
+impl From<UserIdentities> for JsValue {
+    fn from(user_identities: UserIdentities) -> Self {
+        use matrix_sdk_crypto::UserIdentities::*;
+
+        match user_identities.inner {
+            Own(own) => JsValue::from(OwnUserIdentity::from(own)),
+            Other(other) => JsValue::from(UserIdentity::from(other)),
+        }
+    }
+}
+
+#[wasm_bindgen]
+#[derive(Debug)]
+pub struct OwnUserIdentity {
+    inner: matrix_sdk_crypto::OwnUserIdentity,
+}
+
+impl_from_to_inner!(matrix_sdk_crypto::OwnUserIdentity => OwnUserIdentity);
+
+#[wasm_bindgen]
+#[derive(Debug)]
+pub struct UserIdentity {
+    inner: matrix_sdk_crypto::UserIdentity,
+}
+
+impl_from_to_inner!(matrix_sdk_crypto::UserIdentity => UserIdentity);
+
+#[wasm_bindgen]
+impl UserIdentity {
+    /// Is this user identity verified?
+    #[wasm_bindgen(js_name = "isVerified")]
+    pub fn is_verified(&self) -> bool {
+        self.inner.is_verified()
+    }
+
+    /// Manually verify this user.
+    ///
+    /// This method will attempt to sign the user identity using our private
+    /// cross signing key.
+    ///
+    /// This method fails if we don't have the private part of our user-signing
+    /// key.
+    ///
+    /// Returns a request that needs to be sent out for the user to be marked as
+    /// verified.
+    pub fn verify(&self) -> Promise {
+        let me = self.inner.clone();
+
+        future_to_promise(async move {
+            Ok(requests::SignatureUploadRequest::try_from(&me.verify().await?)?)
+        })
+    }
+
+    /// Create a `VerificationRequest` object after the verification
+    /// request content has been sent out.  }
+    #[wasm_bindgen(js_name = "requestVerification")]
+    pub fn request_verification(
+        &self,
+        room_id: &identifiers::RoomId,
+        request_event_id: &identifiers::EventId,
+        methods: Option<Array>,
+    ) -> Result<Promise, JsError> {
+        let me = self.inner.clone();
+        let room_id = room_id.inner.clone();
+        let request_event_id = request_event_id.inner.clone();
+        let methods: Option<Vec<RumaVerificationMethod>> = methods
+            .map(|array| {
+                array
+                    .iter()
+                    .map(|method| {
+                        verification::VerificationMethod::try_from(method).map(Into::into)
+                    })
+                    .collect::<Result<_, _>>()
+            })
+            .transpose()?;
+
+        Ok(future_to_promise::<_, verification::VerificationRequest>(async move {
+            Ok(me
+                .request_verification(room_id.as_ref(), request_event_id.as_ref(), methods)
+                .await
+                .into())
+        }))
+    }
+}
diff --git a/bindings/matrix-sdk-crypto-js/src/lib.rs b/bindings/matrix-sdk-crypto-js/src/lib.rs
index 2421eb801..219cf8fed 100644
--- a/bindings/matrix-sdk-crypto-js/src/lib.rs
+++ b/bindings/matrix-sdk-crypto-js/src/lib.rs
@@ -23,6 +23,7 @@ pub mod encryption;
 pub mod events;
 mod future;
 pub mod identifiers;
+pub mod identities;
 pub mod machine;
 pub mod olm;
 mod macros;
diff --git a/bindings/matrix-sdk-crypto-js/src/machine.rs b/bindings/matrix-sdk-crypto-js/src/machine.rs
index fa4aeefd1..fda7459cc 100644
--- a/bindings/matrix-sdk-crypto-js/src/machine.rs
+++ b/bindings/matrix-sdk-crypto-js/src/machine.rs
@@ -10,7 +10,7 @@ use wasm_bindgen::prelude::*;
 use crate::{
     device, downcast, encryption,
     future::future_to_promise,
-    identifiers, olm, requests,
+    identifiers, identities, olm, requests,
     requests::OutgoingRequest,
     responses::{self, response_from_string},
     store, sync_events, types, verification, vodozemac,
@@ -413,6 +413,17 @@ impl OlmMachine {
         })
     }
 
+    /// Get the cross signing user identity of a user.
+    #[wasm_bindgen(js_name = "getIdentity")]
+    pub fn get_identity(&self, user_id: &identifiers::UserId) -> Promise {
+        let me = self.inner.clone();
+        let user_id = user_id.inner.clone();
+
+        future_to_promise(async move {
+            Ok(me.get_identity(user_id.as_ref(), None).await?.map(identities::UserIdentities::from))
+        })
+    }
+
     /// Sign the given message using our device key and if available
     /// cross-signing master key.
     pub fn sign(&self, message: String) -> Promise {