Update „new device“ toast texts and buttons (#10200)

src/utils/device/isDeviceVerified.ts

@@ -0,0 +1,32 @@
+/*
+Copyright 2023 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { IMyDevice, MatrixClient } from "matrix-js-sdk/src/matrix";
+
+export const isDeviceVerified = (device: IMyDevice, client: MatrixClient): boolean | null => {
+    try {
+        const crossSigningInfo = client.getStoredCrossSigningForUser(client.getSafeUserId());
+        const deviceInfo = client.getStoredDevice(client.getSafeUserId(), device.device_id);
+
+        // no cross-signing or device info available
+        if (!crossSigningInfo || !deviceInfo) return false;
+
+        return crossSigningInfo.checkDeviceTrust(crossSigningInfo, deviceInfo, false, true).isCrossSigningVerified();
+    } catch (e) {
+        console.error("Error getting device cross-signing info", e);
+        return null;
+    }
+};