Subscribe/unsubscribe from channels

flutter/lib/api/api_client.dart

@@ -5,6 +5,7 @@ import 'package:simplecloudnotifier/api/api_exception.dart';
 import 'package:simplecloudnotifier/models/api_error.dart';
 import 'package:simplecloudnotifier/models/client.dart';
 import 'package:simplecloudnotifier/models/keytoken.dart';
+import 'package:simplecloudnotifier/models/sender_name_statistics.dart';
 import 'package:simplecloudnotifier/models/subscription.dart';
 import 'package:simplecloudnotifier/models/user.dart';
 import 'package:simplecloudnotifier/state/app_auth.dart';
@@ -101,21 +102,23 @@ class APIClient {
     }
 
     if (responseStatusCode != 200) {
-      try {
+      APIError apierr;
-        final apierr = APIError.fromJson(jsonDecode(responseBody) as Map<String, dynamic>);
 
-        RequestLog.addRequestAPIError(name, t0, method, uri, req.body, req.headers, responseStatusCode, responseBody, responseHeaders, apierr);
+      try {
-        Toaster.error("Error", 'Request "${name}" failed');
+        apierr = APIError.fromJson(jsonDecode(responseBody) as Map<String, dynamic>);
-        throw APIException(responseStatusCode, apierr.error, apierr.errhighlight, apierr.message);
       } catch (exc, trace) {
         ApplicationLog.warn('Failed to decode api response as error-object', additional: exc.toString() + "\nBody:\n" + responseBody, trace: trace);
-      }
 
         RequestLog.addRequestErrorStatuscode(name, t0, method, uri, req.body, req.headers, responseStatusCode, responseBody, responseHeaders);
         Toaster.error("Error", 'Request "${name}" failed');
         throw Exception('API request failed with status code ${responseStatusCode}');
       }
 
+      RequestLog.addRequestAPIError(name, t0, method, uri, req.body, req.headers, responseStatusCode, responseBody, responseHeaders, apierr);
+      Toaster.error("Error", apierr.message);
+      throw APIException(responseStatusCode, apierr.error, apierr.errhighlight, apierr.message);
+    }
+
     try {
       final data = jsonDecode(responseBody);
 
@@ -281,6 +284,20 @@ class APIClient {
     );
   }
 
+  static Future<(String, List<SCNMessage>)> getChannelMessageList(TokenSource auth, String cid, String pageToken, {int? pageSize}) async {
+    return await _request(
+      name: 'getChannelMessageList',
+      method: 'GET',
+      relURL: 'users/${auth.getUserID()}/channels/${cid}/messages',
+      query: {
+        'next_page_token': [pageToken],
+        if (pageSize != null) 'page_size': [pageSize.toString()],
+      },
+      fn: (json) => SCNMessage.fromPaginatedJsonArray(json, 'messages', 'next_page_token'),
+      authToken: auth.getToken(),
+    );
+  }
+
   static Future<List<Subscription>> getSubscriptionList(TokenSource auth) async {
     return await _request(
       name: 'getSubscriptionList',
@@ -369,7 +386,62 @@ class APIClient {
     );
   }
 
-  static Future<List<String>> getSenderNameList(AppAuth userAcc) {
+  static Future<List<SenderNameStatistics>> getSenderNameList(TokenSource auth) async {
-    return Future.value(['TODO']); //TODO
+    return await _request(
+      name: 'getSenderNameList',
+      method: 'GET',
+      relURL: 'users/${auth.getUserID()}/sender-names',
+      fn: (json) => SenderNameStatistics.fromJsonArray(json['sender_names'] as List<dynamic>),
+      authToken: auth.getToken(),
+    );
+  }
+
+  static Future<Subscription> subscribeToChannelbyID(TokenSource auth, String channelID) async {
+    return await _request(
+      name: 'subscribeToChannelbyID',
+      method: 'POST',
+      relURL: 'users/${auth.getUserID()}/subscriptions',
+      jsonBody: {
+        'channel_id': channelID,
+      },
+      fn: Subscription.fromJson,
+      authToken: auth.getToken(),
+    );
+  }
+
+  static Future<Subscription> deleteSubscription(TokenSource auth, String channelID, String subID) async {
+    return await _request(
+      name: 'deleteSubscription',
+      method: 'DELETE',
+      relURL: 'users/${auth.getUserID()}/subscriptions/${subID}',
+      fn: Subscription.fromJson,
+      authToken: auth.getToken(),
+    );
+  }
+
+  static Future<Subscription> confirmSubscription(TokenSource auth, String channelID, String subID) async {
+    return await _request(
+      name: 'confirmSubscription',
+      method: 'PATCH',
+      relURL: 'users/${auth.getUserID()}/subscriptions/${subID}',
+      jsonBody: {
+        'confirmed': true,
+      },
+      fn: Subscription.fromJson,
+      authToken: auth.getToken(),
+    );
+  }
+
+  static Future<Subscription> unconfirmSubscription(TokenSource auth, String channelID, String subID) async {
+    return await _request(
+      name: 'unconfirmSubscription',
+      method: 'PATCH',
+      relURL: 'users/${auth.getUserID()}/subscriptions/${subID}',
+      jsonBody: {
+        'confirmed': false,
+      },
+      fn: Subscription.fromJson,
+      authToken: auth.getToken(),
+    );
   }
 }

flutter/lib/api/api_exception.dart

@@ -1,7 +1,7 @@
 class APIException implements Exception {
   final int httpStatus;
   final int error;
-  final String errHighlight;
+  final int errHighlight;
   final String message;
 
   APIException(this.httpStatus, this.error, this.errHighlight, this.message);

flutter/lib/components/modals/filter_modal_sendername.dart

@@ -25,7 +25,7 @@ class _FilterModalSendernameState extends State<FilterModalSendername> {
       final userAcc = Provider.of<AppAuth>(context, listen: false);
       if (!userAcc.isAuth()) throw new Exception('not logged in');
 
-      final senders = await APIClient.getSenderNameList(userAcc);
+      final senders = (await APIClient.getSenderNameList(userAcc)).map((p) => p.name).toList();
 
       return senders;
     }());

flutter/lib/models/api_error.dart

@@ -1,7 +1,7 @@
 class APIError {
   final bool success;
   final int error;
-  final String errhighlight;
+  final int errhighlight;
   final String message;
 
   static final MISSING_UID = 1101;
@@ -67,7 +67,7 @@ class APIError {
     return APIError(
       success: json['success'] as bool,
       error: (json['error'] as num).toInt(),
-      errhighlight: json['errhighlight'] as String,
+      errhighlight: (json['errhighlight'] as num).toInt(),
       message: json['message'] as String,
     );
   }

flutter/lib/models/sender_name_statistics.dart

@@ -0,0 +1,26 @@
+class SenderNameStatistics {
+  final String name;
+  final String ts_last;
+  final String ts_first;
+  final int count;
+
+  const SenderNameStatistics({
+    required this.name,
+    required this.ts_last,
+    required this.ts_first,
+    required this.count,
+  });
+
+  factory SenderNameStatistics.fromJson(Map<String, dynamic> json) {
+    return SenderNameStatistics(
+      name: json['name'] as String,
+      ts_last: json['ts_last'] as String,
+      ts_first: json['ts_first'] as String,
+      count: json['count'] as int,
+    );
+  }
+
+  static List<SenderNameStatistics> fromJsonArray(List<dynamic> jsonArr) {
+    return jsonArr.map<SenderNameStatistics>((e) => SenderNameStatistics.fromJson(e as Map<String, dynamic>)).toList();
+  }
+}

flutter/lib/pages/account/account.dart

@@ -7,6 +7,7 @@ import 'package:provider/provider.dart';
 import 'package:simplecloudnotifier/api/api_client.dart';
 import 'package:simplecloudnotifier/models/user.dart';
 import 'package:simplecloudnotifier/pages/account/login.dart';
+import 'package:simplecloudnotifier/pages/channel_list/channel_list_extended.dart';
 import 'package:simplecloudnotifier/state/app_bar_state.dart';
 import 'package:simplecloudnotifier/state/application_log.dart';
 import 'package:simplecloudnotifier/state/globals.dart';
@@ -32,6 +33,7 @@ class _AccountRootPageState extends State<AccountRootPage> {
   late ImmediateFuture<int>? futureKeyCount;
   late ImmediateFuture<int>? futureChannelAllCount;
   late ImmediateFuture<int>? futureChannelSubscribedCount;
+  late ImmediateFuture<int>? futureSenderNamesCount;
   late ImmediateFuture<User>? futureUser;
 
   late AppAuth userAcc;
@@ -87,6 +89,7 @@ class _AccountRootPageState extends State<AccountRootPage> {
     futureKeyCount = null;
     futureChannelAllCount = null;
     futureChannelSubscribedCount = null;
+    futureSenderNamesCount = null;
 
     if (userAcc.isAuth()) {
       futureChannelAllCount = ImmediateFuture.ofFuture(() async {
@@ -119,6 +122,12 @@ class _AccountRootPageState extends State<AccountRootPage> {
         return keys.length;
       }());
 
+      futureSenderNamesCount = ImmediateFuture.ofFuture(() async {
+        if (!userAcc.isAuth()) throw new Exception('not logged in');
+        final senders = (await APIClient.getSenderNameList(userAcc)).map((p) => p.name).toList();
+        return senders.length;
+      }());
+
       futureUser = ImmediateFuture.ofFuture(userAcc.loadUser(force: false));
     }
   }
@@ -137,6 +146,7 @@ class _AccountRootPageState extends State<AccountRootPage> {
         final subs = await APIClient.getSubscriptionList(userAcc);
         final clients = await APIClient.getClientList(userAcc);
         final keys = await APIClient.getKeyTokenList(userAcc);
+        final senderNames = await APIClient.getSenderNameList(userAcc);
         final user = await userAcc.loadUser(force: true);
 
         setState(() {
@@ -145,6 +155,7 @@ class _AccountRootPageState extends State<AccountRootPage> {
           futureSubscriptionCount = ImmediateFuture.ofValue(subs.length);
           futureClientCount = ImmediateFuture.ofValue(clients.length);
           futureKeyCount = ImmediateFuture.ofValue(keys.length);
+          futureSenderNamesCount = ImmediateFuture.ofValue(senderNames.length);
           futureUser = ImmediateFuture.ofValue(user);
         });
       } catch (exc, trace) {
@@ -368,7 +379,10 @@ class _AccountRootPageState extends State<AccountRootPage> {
       _buildNumberCard(context, 'Subscriptions', futureSubscriptionCount, () {/*TODO*/}),
       _buildNumberCard(context, 'Clients', futureClientCount, () {/*TODO*/}),
       _buildNumberCard(context, 'Keys', futureKeyCount, () {/*TODO*/}),
-      _buildNumberCard(context, 'Channels', futureChannelSubscribedCount, () {/*TODO*/}),
+      _buildNumberCard(context, 'Channels', futureChannelSubscribedCount, () {
+        Navi.push(context, () => ChannelListExtendedPage());
+      }),
+      _buildNumberCard(context, 'Sender', futureSenderNamesCount, () {/*TODO*/}),
       UI.buttonCard(
         context: context,
         margin: EdgeInsets.fromLTRB(0, 4, 0, 4),

flutter/lib/pages/channel_list/channel_list.dart

@@ -4,7 +4,6 @@ import 'package:infinite_scroll_pagination/infinite_scroll_pagination.dart';
 import 'package:provider/provider.dart';
 import 'package:simplecloudnotifier/api/api_client.dart';
 import 'package:simplecloudnotifier/models/channel.dart';
-import 'package:simplecloudnotifier/pages/channel_view/channel_view.dart';
 import 'package:simplecloudnotifier/state/app_bar_state.dart';
 import 'package:simplecloudnotifier/state/application_log.dart';
 import 'package:simplecloudnotifier/state/app_auth.dart';
@@ -154,8 +153,13 @@ class _ChannelRootPageState extends State<ChannelRootPage> with RouteAware {
             itemBuilder: (context, item, index) => ChannelListItem(
               channel: item.channel,
               subscription: item.subscription,
-              onPressed: () {
+              mode: ChannelListItemMode.Messages,
-                Navi.push(context, () => ChannelViewPage(channelID: item.channel.channelID, preloadedData: (item.channel, item.subscription), needsReload: _enqueueReload));
+              onChannelListReloadTrigger: _enqueueReload,
+              onSubscriptionChanged: (channelID, subscription) {
+                setState(() {
+                  final idx = _pagingController.itemList?.indexWhere((p) => p.channel.channelID == channelID);
+                  if (idx != null && idx >= 0) _pagingController.itemList![idx] = ChannelWithSubscription(channel: _pagingController.itemList![idx].channel, subscription: subscription);
+                });
               },
             ),
           ),

flutter/lib/pages/channel_list/channel_list_extended.dart

@@ -0,0 +1,151 @@
+import 'package:flutter/material.dart';
+import 'package:infinite_scroll_pagination/infinite_scroll_pagination.dart';
+import 'package:provider/provider.dart';
+import 'package:simplecloudnotifier/api/api_client.dart';
+import 'package:simplecloudnotifier/components/layout/scaffold.dart';
+import 'package:simplecloudnotifier/models/channel.dart';
+import 'package:simplecloudnotifier/state/app_bar_state.dart';
+import 'package:simplecloudnotifier/state/application_log.dart';
+import 'package:simplecloudnotifier/state/app_auth.dart';
+import 'package:simplecloudnotifier/pages/channel_list/channel_list_item.dart';
+import 'package:simplecloudnotifier/utils/navi.dart';
+
+class ChannelListExtendedPage extends StatefulWidget {
+  const ChannelListExtendedPage({super.key});
+
+  @override
+  State<ChannelListExtendedPage> createState() => _ChannelListExtendedPageState();
+}
+
+class _ChannelListExtendedPageState extends State<ChannelListExtendedPage> with RouteAware {
+  final PagingController<int, ChannelWithSubscription> _pagingController = PagingController.fromValue(PagingState(nextPageKey: null, itemList: [], error: null), firstPageKey: 0);
+
+  bool _reloadEnqueued = false;
+
+  @override
+  void initState() {
+    super.initState();
+
+    _pagingController.addPageRequestListener(_fetchPage);
+
+    _pagingController.refresh();
+  }
+
+  @override
+  void didChangeDependencies() {
+    super.didChangeDependencies();
+    Navi.modalRouteObserver.subscribe(this, ModalRoute.of(context)!);
+  }
+
+  @override
+  void dispose() {
+    ApplicationLog.debug('ChannelRootPage::dispose');
+    _pagingController.dispose();
+    Navi.modalRouteObserver.unsubscribe(this);
+    super.dispose();
+  }
+
+  @override
+  void didPopNext() {
+    if (_reloadEnqueued) {
+      ApplicationLog.debug('[ChannelList::RouteObserver] --> didPopNext (will background-refresh) (_reloadEnqueued == true)');
+      () async {
+        _reloadEnqueued = false;
+        await Future.delayed(const Duration(milliseconds: 500), () {}); // prevents flutter bug where the whole process crashes ?!?
+        await _backgroundRefresh();
+      }();
+    }
+  }
+
+  Future<void> _fetchPage(int pageKey) async {
+    final acc = Provider.of<AppAuth>(context, listen: false);
+
+    ApplicationLog.debug('Start ChannelList::_pagingController::_fetchPage [ ${pageKey} ]');
+
+    if (!acc.isAuth()) {
+      _pagingController.error = 'Not logged in';
+      return;
+    }
+
+    try {
+      final items = (await APIClient.getChannelList(acc, ChannelSelector.all)).toList();
+
+      items.sort((a, b) => -1 * (a.channel.timestampLastSent ?? '').compareTo(b.channel.timestampLastSent ?? ''));
+
+      _pagingController.value = PagingState(nextPageKey: null, itemList: items, error: null);
+    } catch (exc, trace) {
+      _pagingController.error = exc.toString();
+      ApplicationLog.error('Failed to list channels: ' + exc.toString(), trace: trace);
+    }
+  }
+
+  Future<void> _backgroundRefresh() async {
+    final acc = Provider.of<AppAuth>(context, listen: false);
+
+    ApplicationLog.debug('Start background refresh of channel list');
+
+    if (!acc.isAuth()) {
+      _pagingController.error = 'Not logged in';
+      return;
+    }
+
+    try {
+      await Future.delayed(const Duration(seconds: 0), () {}); // this is annoyingly important - otherwise we call setLoadingIndeterminate directly in initStat() and get an exception....
+
+      AppBarState().setLoadingIndeterminate(true);
+
+      final items = (await APIClient.getChannelList(acc, ChannelSelector.all)).toList();
+
+      items.sort((a, b) => -1 * (a.channel.timestampLastSent ?? '').compareTo(b.channel.timestampLastSent ?? ''));
+
+      setState(() {
+        _pagingController.value = PagingState(nextPageKey: null, itemList: items, error: null);
+      });
+    } catch (exc, trace) {
+      setState(() {
+        _pagingController.error = exc.toString();
+      });
+      ApplicationLog.error('Failed to list channels: ' + exc.toString(), trace: trace);
+    } finally {
+      AppBarState().setLoadingIndeterminate(false);
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return SCNScaffold(
+      title: "Channels",
+      showSearch: false,
+      showShare: false,
+      child: Padding(
+        padding: EdgeInsets.fromLTRB(8, 4, 8, 4),
+        child: RefreshIndicator(
+          onRefresh: () => Future.sync(
+            () => _pagingController.refresh(),
+          ),
+          child: PagedListView<int, ChannelWithSubscription>(
+            pagingController: _pagingController,
+            builderDelegate: PagedChildBuilderDelegate<ChannelWithSubscription>(
+              itemBuilder: (context, item, index) => ChannelListItem(
+                channel: item.channel,
+                subscription: item.subscription,
+                mode: ChannelListItemMode.Extended,
+                onChannelListReloadTrigger: _enqueueReload,
+                onSubscriptionChanged: (channelID, subscription) {
+                  setState(() {
+                    final idx = _pagingController.itemList?.indexWhere((p) => p.channel.channelID == channelID);
+                    if (idx != null && idx >= 0) _pagingController.itemList![idx] = ChannelWithSubscription(channel: _pagingController.itemList![idx].channel, subscription: subscription);
+                  });
+                },
+              ),
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+
+  void _enqueueReload() {
+    _reloadEnqueued = true;
+  }
+}

flutter/lib/pages/channel_list/channel_list_item.dart

@@ -7,23 +7,35 @@ import 'package:simplecloudnotifier/models/channel.dart';
 import 'package:simplecloudnotifier/models/scn_message.dart';
 import 'package:simplecloudnotifier/models/subscription.dart';
 import 'package:simplecloudnotifier/pages/channel_message_view/channel_message_view.dart';
+import 'package:simplecloudnotifier/pages/channel_view/channel_view.dart';
 import 'package:simplecloudnotifier/state/app_auth.dart';
+import 'package:simplecloudnotifier/state/application_log.dart';
 import 'package:simplecloudnotifier/state/scn_data_cache.dart';
 import 'package:simplecloudnotifier/utils/navi.dart';
+import 'package:simplecloudnotifier/utils/toaster.dart';
+
+enum ChannelListItemMode {
+  Messages,
+  Extended,
+}
 
 class ChannelListItem extends StatefulWidget {
   static final _dateFormat = DateFormat('yyyy-MM-dd kk:mm');
 
   const ChannelListItem({
     required this.channel,
-    required this.onPressed,
+    required this.onChannelListReloadTrigger,
+    required this.onSubscriptionChanged,
     required this.subscription,
+    required this.mode,
     super.key,
   });
 
   final Channel channel;
   final Subscription? subscription;
-  final Null Function() onPressed;
+  final void Function() onChannelListReloadTrigger;
+  final ChannelListItemMode mode;
+  final void Function(String, Subscription?) onSubscriptionChanged;
 
   @override
   State<ChannelListItem> createState() => _ChannelListItemState();
@@ -38,11 +50,11 @@ class _ChannelListItemState extends State<ChannelListItem> {
 
     final acc = Provider.of<AppAuth>(context, listen: false);
 
-    if (acc.isAuth()) {
+    if (acc.isAuth() && widget.mode == ChannelListItemMode.Messages) {
       lastMessage = SCNDataCache().getMessagesSorted().where((p) => p.channelID == widget.channel.channelID).firstOrNull;
 
       () async {
-        final (_, channelMessages) = await APIClient.getMessageList(acc, '@start', pageSize: 1, filter: MessageFilter(channelIDs: [widget.channel.channelID]));
+        final (_, channelMessages) = await APIClient.getChannelMessageList(acc, widget.channel.channelID, '@start', pageSize: 1);
         setState(() {
           lastMessage = channelMessages.firstOrNull;
         });
@@ -52,13 +64,18 @@ class _ChannelListItemState extends State<ChannelListItem> {
 
   @override
   Widget build(BuildContext context) {
-    //TODO subscription status
     return Card.filled(
       margin: EdgeInsets.fromLTRB(0, 4, 0, 4),
       shape: BeveledRectangleBorder(borderRadius: BorderRadius.circular(0)),
       color: Theme.of(context).cardTheme.color,
       child: InkWell(
-        onTap: widget.onPressed,
+        onTap: () {
+          if (widget.mode == ChannelListItemMode.Messages) {
+            Navi.push(context, () => ChannelMessageViewPage(channel: widget.channel));
+          } else {
+            Navi.push(context, () => ChannelViewPage(channelID: widget.channel.channelID, preloadedData: (widget.channel, widget.subscription), needsReload: widget.onChannelListReloadTrigger));
+          }
+        },
         child: Padding(
           padding: const EdgeInsets.all(8),
           child: Row(
@@ -87,13 +104,8 @@ class _ChannelListItemState extends State<ChannelListItem> {
                     Row(
                       crossAxisAlignment: CrossAxisAlignment.end,
                       children: [
-                        Expanded(
+                        Expanded(child: (widget.mode == ChannelListItemMode.Messages) ? Text(_preformatTitle(lastMessage), style: TextStyle(color: Theme.of(context).textTheme.bodyLarge?.color?.withAlpha(160))) : _buildSubscriptionStateText(context)),
-                          child: Text(
+                        (widget.mode == ChannelListItemMode.Messages) ? Text(widget.channel.messagesSent.toString(), style: const TextStyle(fontSize: 14, fontWeight: FontWeight.bold)) : Text("", style: const TextStyle(fontSize: 14, fontWeight: FontWeight.bold)),
-                            _preformatTitle(lastMessage),
-                            style: TextStyle(color: Theme.of(context).textTheme.bodyLarge?.color?.withAlpha(160)),
-                          ),
-                        ),
-                        Text(widget.channel.messagesSent.toString(), style: const TextStyle(fontSize: 14, fontWeight: FontWeight.bold)),
                       ],
                     ),
                   ],
@@ -102,11 +114,15 @@ class _ChannelListItemState extends State<ChannelListItem> {
               SizedBox(width: 4),
               GestureDetector(
                 onTap: () {
-                  Navi.push(context, () => ChannelMessageViewPage(channel: this.widget.channel));
+                  if (widget.mode == ChannelListItemMode.Messages) {
+                    Navi.push(context, () => ChannelViewPage(channelID: widget.channel.channelID, preloadedData: (widget.channel, widget.subscription), needsReload: widget.onChannelListReloadTrigger));
+                  } else {
+                    Navi.push(context, () => ChannelMessageViewPage(channel: widget.channel));
+                  }
                 },
                 child: Padding(
                   padding: const EdgeInsets.all(8),
-                  child: Icon(FontAwesomeIcons.solidEnvelopes, color: Theme.of(context).colorScheme.onPrimaryContainer.withAlpha(128), size: 24),
+                  child: (widget.mode == ChannelListItemMode.Messages) ? Icon(FontAwesomeIcons.solidSquareInfo, color: Theme.of(context).colorScheme.onPrimaryContainer.withAlpha(128), size: 24) : Icon(FontAwesomeIcons.solidEnvelopes, color: Theme.of(context).colorScheme.onPrimaryContainer.withAlpha(128), size: 24),
                 ),
               ),
             ],
@@ -123,13 +139,73 @@ class _ChannelListItemState extends State<ChannelListItem> {
 
   Widget _buildIcon(BuildContext context) {
     if (widget.subscription == null) {
-      return Icon(FontAwesomeIcons.solidSquareDashed, color: Theme.of(context).colorScheme.outline, size: 32); // not-subscribed
+      Widget result = Icon(FontAwesomeIcons.solidSquareDashed, color: Theme.of(context).colorScheme.outline, size: 32); // not-subscribed
+      result = GestureDetector(onTap: () => _subscribe(), child: result);
+      return result;
     } else if (widget.subscription!.confirmed && widget.channel.ownerUserID == widget.subscription!.subscriberUserID) {
-      return Icon(FontAwesomeIcons.solidSquareRss, color: Theme.of(context).colorScheme.onPrimaryContainer, size: 32); // subscribed (own channel)
+      Widget result = Icon(FontAwesomeIcons.solidSquareRss, color: Theme.of(context).colorScheme.onPrimaryContainer, size: 32); // subscribed (own channel)
+      result = GestureDetector(onTap: () => _unsubscribe(widget.subscription!), child: result);
+      return result;
     } else if (widget.subscription!.confirmed) {
-      return Icon(FontAwesomeIcons.solidSquareShareNodes, color: Theme.of(context).colorScheme.onPrimaryContainer, size: 32); // subscribed (foreign channel)
+      Widget result = Icon(FontAwesomeIcons.solidSquareShareNodes, color: Theme.of(context).colorScheme.onPrimaryContainer, size: 32); // subscribed (foreign channel)
+      result = GestureDetector(onTap: () => _unsubscribe(widget.subscription!), child: result);
+      return result;
     } else {
-      return Icon(FontAwesomeIcons.solidSquareEnvelope, color: Theme.of(context).colorScheme.tertiary, size: 32); // requested
+      Widget result = Icon(FontAwesomeIcons.solidSquareEnvelope, color: Theme.of(context).colorScheme.tertiary, size: 32); // requested
+      result = GestureDetector(onTap: () => _unsubscribe(widget.subscription!), child: result);
+      return result;
+    }
+  }
+
+  Widget _buildSubscriptionStateText(BuildContext context) {
+    if (widget.subscription == null) {
+      return Text("", style: TextStyle(color: Theme.of(context).textTheme.bodyLarge?.color?.withAlpha(160)));
+    } else if (widget.subscription!.confirmed && widget.channel.ownerUserID == widget.subscription!.subscriberUserID) {
+      return Text("subscribed", style: TextStyle(color: Theme.of(context).textTheme.bodyLarge?.color?.withAlpha(160)));
+    } else if (widget.subscription!.confirmed) {
+      return Text("subscripted (foreign channe)", style: TextStyle(color: Theme.of(context).textTheme.bodyLarge?.color?.withAlpha(160)));
+    } else {
+      return Text("subscription requested", style: TextStyle(color: Theme.of(context).textTheme.bodyLarge?.color?.withAlpha(160)));
+    }
+  }
+
+  void _subscribe() async {
+    final acc = AppAuth();
+
+    if (acc.isAuth() && widget.channel.ownerUserID == acc.getUserID()) {
+      try {
+        var sub = await APIClient.subscribeToChannelbyID(acc, widget.channel.channelID);
+        widget.onChannelListReloadTrigger.call();
+
+        widget.onSubscriptionChanged(widget.channel.channelID, sub);
+
+        if (sub.confirmed) {
+          Toaster.success("Success", 'Subscribed to channel');
+        } else {
+          Toaster.success("Success", 'Requested widget.subscription to channel');
+        }
+      } catch (exc, trace) {
+        Toaster.error("Error", 'Failed to subscribe to channel');
+        ApplicationLog.error('Failed to subscribe to channel: ' + exc.toString(), trace: trace);
+      }
+    }
+  }
+
+  void _unsubscribe(Subscription sub) async {
+    final acc = AppAuth();
+
+    if (acc.isAuth() && widget.channel.ownerUserID == acc.getUserID() && widget.subscription != null) {
+      try {
+        await APIClient.deleteSubscription(acc, widget.channel.channelID, widget.subscription!.subscriptionID);
+        widget.onChannelListReloadTrigger.call();
+
+        widget.onSubscriptionChanged?.call(widget.channel.channelID, null);
+
+        Toaster.success("Success", 'Unsubscribed from channel');
+      } catch (exc, trace) {
+        Toaster.error("Error", 'Failed to unsubscribe from channel');
+        ApplicationLog.error('Failed to unsubscribe from channel: ' + exc.toString(), trace: trace);
+      }
     }
   }
 }

flutter/lib/pages/channel_message_view/channel_message_view.dart

@@ -55,7 +55,7 @@ class _ChannelMessageViewPageState extends State<ChannelMessageViewPage> {
     }
 
     try {
-      final (npt, newItems) = await APIClient.getMessageList(acc, thisPageToken, pageSize: cfg.messagePageSize, filter: MessageFilter(channelIDs: [this.widget.channel.channelID]));
+      final (npt, newItems) = await APIClient.getChannelMessageList(acc, this.widget.channel.channelID, thisPageToken, pageSize: cfg.messagePageSize);
 
       SCNDataCache().addToMessageCache(newItems); // no await
 

flutter/lib/pages/channel_view/channel_view.dart

@@ -63,15 +63,15 @@ class _ChannelViewPageState extends State<ChannelViewPage> {
 
   @override
   void initState() {
-    _initStateAsync();
+    _initStateAsync(true);
 
     super.initState();
   }
 
-  void _initStateAsync() async {
+  Future<void> _initStateAsync(bool usePreload) async {
     final userAcc = Provider.of<AppAuth>(context, listen: false);
 
-    if (widget.preloadedData != null) {
+    if (widget.preloadedData != null && usePreload) {
       channelPreview = widget.preloadedData!.$1.toPreview();
       channel = widget.preloadedData!.$1;
       subscription = widget.preloadedData!.$2;
@@ -231,7 +231,7 @@ class _ChannelViewPageState extends State<ChannelViewPage> {
             UI.metaCard(
               context: context,
               icon: FontAwesomeIcons.solidDiagramSubtask,
-              title: 'Subscription (own)',
+              title: 'Subscription (foreign)',
               values: [_formatSubscriptionStatus(subscription)],
               iconActions: isSubscribed ? [(FontAwesomeIcons.solidSquareXmark, _unsubscribe)] : [(FontAwesomeIcons.solidSquareRss, _subscribe)],
             ),
@@ -296,7 +296,7 @@ class _ChannelViewPageState extends State<ChannelViewPage> {
       future: _futureSubscribeKey.future,
       builder: (context, snapshot) {
         if (snapshot.hasData && snapshot.data != null) {
-          var text = 'TODO' + '\n' + channel!.channelID + '\n' + snapshot.data!; //TODO deeplink-y (also perhaps just bas64 everything together?)
+          var text = '@scn.channel.subscribe' + '\n' + "v1" + '\n' + channel!.displayName + '\n' + channel!.ownerUserID + '\n' + channel!.channelID + '\n' + snapshot.data!;
           return GestureDetector(
             onTap: () {
               Share.share(text, subject: _displayNameOverride ?? channel!.displayName);
@@ -305,7 +305,7 @@ class _ChannelViewPageState extends State<ChannelViewPage> {
               child: QrImageView(
                 data: text,
                 version: QrVersions.auto,
-                size: 300.0,
+                size: 265.0,
                 eyeStyle: QrEyeStyle(
                   eyeShape: QrEyeShape.square,
                   color: Theme.of(context).textTheme.bodyLarge?.color,
@@ -446,14 +446,6 @@ class _ChannelViewPageState extends State<ChannelViewPage> {
     }
   }
 
-  void _subscribe() {
-    //TODO
-  }
-
-  void _unsubscribe() {
-    //TODO
-  }
-
   void _showEditDisplayName() {
     setState(() {
       _ctrlDisplayName.text = _displayNameOverride ?? channelPreview?.displayName ?? '';
@@ -518,16 +510,90 @@ class _ChannelViewPageState extends State<ChannelViewPage> {
     }
   }
 
-  void _cancelForeignSubscription(Subscription sub) {
+  void _subscribe() async {
-    //TODO
+    final acc = AppAuth();
+
+    try {
+      var sub = await APIClient.subscribeToChannelbyID(acc, widget.channelID);
+      widget.needsReload?.call();
+
+      await _initStateAsync(false);
+
+      if (sub.confirmed) {
+        Toaster.success("Success", 'Subscribed to channel');
+      } else {
+        Toaster.success("Success", 'Requested subscription to channel');
+      }
+    } catch (exc, trace) {
+      Toaster.error("Error", 'Failed to subscribe to channel');
+      ApplicationLog.error('Failed to subscribe to channel: ' + exc.toString(), trace: trace);
+    }
   }
 
-  void _confirmForeignSubscription(Subscription sub) {
+  void _unsubscribe() async {
-    //TODO
+    final acc = AppAuth();
+
+    if (subscription == null) return;
+
+    try {
+      await APIClient.deleteSubscription(acc, widget.channelID, subscription!.subscriptionID);
+      widget.needsReload?.call();
+
+      await _initStateAsync(false);
+
+      Toaster.success("Success", 'Unsubscribed from channel');
+    } catch (exc, trace) {
+      Toaster.error("Error", 'Failed to unsubscribe from channel');
+      ApplicationLog.error('Failed to unsubscribe from channel: ' + exc.toString(), trace: trace);
+    }
   }
 
-  void _denyForeignSubscription(Subscription sub) {
+  void _cancelForeignSubscription(Subscription sub) async {
-    //TODO
+    final acc = AppAuth();
+
+    try {
+      await APIClient.unconfirmSubscription(acc, widget.channelID, subscription!.subscriptionID);
+      widget.needsReload?.call();
+
+      await _initStateAsync(false);
+
+      Toaster.success("Success", 'Subscription succesfully revoked');
+    } catch (exc, trace) {
+      Toaster.error("Error", 'Failed to revoke subscription');
+      ApplicationLog.error('Failed to revoke subscription: ' + exc.toString(), trace: trace);
+    }
+  }
+
+  void _confirmForeignSubscription(Subscription sub) async {
+    final acc = AppAuth();
+
+    try {
+      await APIClient.confirmSubscription(acc, widget.channelID, subscription!.subscriptionID);
+      widget.needsReload?.call();
+
+      await _initStateAsync(false);
+
+      Toaster.success("Success", 'Subscription succesfully confirmed');
+    } catch (exc, trace) {
+      Toaster.error("Error", 'Failed to confirm subscription');
+      ApplicationLog.error('Failed to confirm subscription: ' + exc.toString(), trace: trace);
+    }
+  }
+
+  void _denyForeignSubscription(Subscription sub) async {
+    final acc = AppAuth();
+
+    try {
+      await APIClient.deleteSubscription(acc, widget.channelID, subscription!.subscriptionID);
+      widget.needsReload?.call();
+
+      await _initStateAsync(false);
+
+      Toaster.success("Success", 'Subscription request succesfully denied');
+    } catch (exc, trace) {
+      Toaster.error("Error", 'Failed to deny subscription');
+      ApplicationLog.error('Failed to deny subscription: ' + exc.toString(), trace: trace);
+    }
   }
 
   String _formatSubscriptionStatus(Subscription? subscription) {

flutter/lib/utils/ui.dart

@@ -72,7 +72,7 @@ class UI {
         splashColor: Theme.of(context).splashColor,
         onTap: onTap,
         child: Padding(
-          padding: const EdgeInsets.all(16),
+          padding: EdgeInsets.symmetric(horizontal: 16, vertical: 12),
           child: child,
         ),
       ),

scnserver/api/handler/apiChannel.go

@@ -411,7 +411,6 @@ func (h APIHandler) ListChannelMessages(pctx ginext.PreContext) ginext.HTTPRespo
 	type query struct {
 		PageSize      *int    `json:"page_size"       form:"page_size"`
 		NextPageToken *string `json:"next_page_token" form:"next_page_token"`
-		Filter        *string `json:"filter"          form:"filter"`
 		Trimmed       *bool   `json:"trimmed"         form:"trimmed"`
 	}
 	type response struct {