use gomuks for URL previews

lib/controllers/client.dart

@@ -17,6 +17,7 @@ import "package:nexus/main.dart";
 import "package:nexus/models/content/message.dart";
 import "package:nexus/models/event.dart";
 import "package:nexus/models/oauth_auth_code_response.dart";
+import "package:nexus/models/open_graph_data.dart";
 import "package:nexus/models/paginate.dart";
 import "package:nexus/models/requests/download_media.dart";
 import "package:nexus/models/requests/get_event.dart";
@@ -215,11 +216,6 @@ class ClientController extends AsyncNotifier<int> {
     return response["room_id"];
   }
 
-  Future<String?> getAccessToken() async {
-    final response = await _sendCommand("get_account_info", {});
-    return response?["access_token"];
-  }
-
   Future<void> leaveRoom(Room room) async {
     if (room.metadata == null) return;
     await _sendCommand("leave_room", {"room_id": room.metadata!.id});
@@ -255,6 +251,9 @@ class ClientController extends AsyncNotifier<int> {
     return json == null ? null : .fromJson(json);
   }
 
+  Future<OpenGraphData> getUrlPreview(Uri url) async =>
+      .fromJson(await _sendCommand("get_url_preview", {"url": url.toString()}));
+
   Future<Paginate> paginate(PaginateRequest request) async =>
       .fromJson(await _sendCommand("paginate", request.toJson()));
 

lib/controllers/header.dart

@@ -1,20 +0,0 @@
-import "package:flutter_riverpod/flutter_riverpod.dart";
-import "package:nexus/controllers/client.dart";
-import "package:nexus/controllers/client_state.dart";
-
-class HeaderController extends AsyncNotifier<Map<String, String>> {
-  @override
-  Future<Map<String, String>> build() async {
-    if (ref.watch(ClientStateController.provider)?.isLoggedIn != true) {
-      return {};
-    }
-    final client = ref.watch(ClientController.provider.notifier);
-    final accessToken = await client.getAccessToken();
-    return {"authorization": "Bearer $accessToken"};
-  }
-
-  static final provider =
-      AsyncNotifierProvider<HeaderController, Map<String, String>>(
-        HeaderController.new,
-      );
-}

lib/controllers/url_preview.dart

@@ -1,50 +1,22 @@
-import "dart:convert";
 import "package:flutter_riverpod/flutter_riverpod.dart";
-import "package:http/http.dart";
-import "package:nexus/controllers/client_state.dart";
-import "package:nexus/controllers/header.dart";
+import "package:nexus/controllers/client.dart";
 import "package:nexus/models/open_graph_data.dart";
 
 class UrlPreviewController extends AsyncNotifier<OpenGraphData?> {
-  final String link;
-  UrlPreviewController(this.link);
+  final Uri url;
+  UrlPreviewController(this.url);
 
   @override
   Future<OpenGraphData?> build() async {
-    try {
-      final homeserver = ref.watch(
-        ClientStateController.provider.select((value) => value?.homeserverUrl),
-      );
+    if (url.host == "matrix.to") return null;
 
-      if (homeserver != null && !link.contains("matrix.to")) {
-        {
-          final response = await get(
-            .parse(homeserver)
-                .resolve("/_matrix/client/v1/media/preview_url")
-                .replace(queryParameters: {"url": link}),
-            headers: await ref.watch(HeaderController.provider.future),
-          );
-
-          if (response.statusCode == 200) {
-            final decodedValue = json.decode(response.body);
-            if (decodedValue is! Map<String, dynamic>) return null;
-
-            return .fromJson(
-              decodedValue,
-            ).copyWith(imageUrl: decodedValue["og:image"]);
-          }
-        }
-      }
-    } catch (_) {
-      return null;
-    }
-    return null;
+    return await ref
+        .watch(ClientController.provider.notifier)
+        .getUrlPreview(url);
   }
 
   static final provider =
-      AsyncNotifierProvider.family<
-        UrlPreviewController,
-        OpenGraphData?,
-        String
-      >(UrlPreviewController.new);
+      AsyncNotifierProvider.family<UrlPreviewController, OpenGraphData?, Uri>(
+        UrlPreviewController.new,
+      );
 }

lib/main.dart

@@ -6,7 +6,6 @@ import "package:flutter_riverpod/flutter_riverpod.dart";
 import "package:media_kit/media_kit.dart";
 import "package:nexus/controllers/client.dart";
 import "package:nexus/controllers/client_state.dart";
-import "package:nexus/controllers/header.dart";
 import "package:nexus/controllers/multi_provider.dart";
 import "package:nexus/controllers/settings.dart";
 import "package:nexus/controllers/shared_prefs.dart";
@@ -144,7 +143,6 @@ class App extends StatelessWidget {
                   IListConst([
                     SharedPrefsController.provider,
                     ClientController.provider,
-                    HeaderController.provider,
                   ]),
                 ),
               )

lib/widgets/renderers/message.dart

@@ -273,7 +273,8 @@ class MessageRenderer extends ConsumerWidget {
                                     (element) => element is UrlElement,
                                   )
                                   case final UrlElement link?)
-                                UrlPreview(link.url),
+                                if (Uri.tryParse(link.url) case final Uri url?)
+                                  UrlPreview(url),
 
                               ReactionRow(event),
                             ],

lib/widgets/url_preview.dart

@@ -6,7 +6,7 @@ import "package:nexus/helpers/launch_helper.dart";
 import "package:nexus/helpers/mxc_image.dart";
 
 class UrlPreview extends ConsumerWidget {
-  final String link;
+  final Uri link;
   const UrlPreview(this.link, {super.key});
 
   @override
@@ -18,8 +18,7 @@ class UrlPreview extends ConsumerWidget {
           data: (preview) => preview == null
               ? SizedBox.shrink()
               : InkWell(
-                  onTap: () =>
-                      ref.watch(LaunchHelper.provider).launchUrl(.parse(link)),
+                  onTap: () => ref.watch(LaunchHelper.provider).launchUrl(link),
                   child: Card(
                     margin: .symmetric(vertical: 4),
                     color: Theme.of(