Matrix: add invites tab, add /leave command, remove room when leaving, add async loading for more tasks

1 files changed, 482 insertions, 116 deletions

diff --git a/src/plugins/Matrix.cpp b/src/plugins/Matrix.cpp
index 93eb1d6..b8c2f89 100644
--- a/src/plugins/Matrix.cpp
+++ b/src/plugins/Matrix.cpp
@@ -70,6 +70,15 @@ static std::string extract_first_line_elipses(const std::string &str, size_t max
 }
 
 namespace QuickMedia {
+    static void remove_body_item_by_url(BodyItems &body_items, const std::string &url) {
+        for(auto it = body_items.begin(); it != body_items.end();) {
+            if((*it)->url == url)
+                it = body_items.erase(it);
+            else
+                ++it;
+        }
+    }
+
     std::shared_ptr<UserInfo> RoomData::get_user_by_id(const std::string &user_id) {
         std::lock_guard<std::mutex> lock(room_mutex);
         auto user_it = user_info_by_user_id.find(user_id);
@@ -203,12 +212,24 @@ namespace QuickMedia {
         return tags;
     }
 
-    MatrixQuickMedia::MatrixQuickMedia(Program *program, Matrix *matrix, MatrixRoomsPage *rooms_page, MatrixRoomTagsPage *room_tags_page) : program(program), matrix(matrix), rooms_page(rooms_page), room_tags_page(room_tags_page) {
+    void RoomData::clear_data() {
+        std::lock_guard<std::mutex> lock(room_mutex);
+        fetched_messages_by_event_id.clear();
+        user_info_by_user_id.clear();
+        messages.clear();
+        message_by_event_id.clear();
+        pinned_events.clear();
+        tags.clear();
+    }
+
+    MatrixQuickMedia::MatrixQuickMedia(Program *program, Matrix *matrix, MatrixRoomsPage *rooms_page, MatrixRoomTagsPage *room_tags_page, MatrixInvitesPage *invites_page) :
+        program(program), matrix(matrix), rooms_page(rooms_page), room_tags_page(room_tags_page), invites_page(invites_page)
+    {
         rooms_page->matrix_delegate = this;
         room_tags_page->matrix_delegate = this;
     }
 
-    void MatrixQuickMedia::room_create(RoomData *room) {
+    void MatrixQuickMedia::join_room(RoomData *room) {
         std::string room_name = room->get_name();
         if(room_name.empty())
             room_name = room->id;
@@ -220,11 +241,18 @@ namespace QuickMedia {
         body_item->thumbnail_mask_type = ThumbnailMaskType::CIRCLE;
         body_item->thumbnail_size = sf::Vector2i(32, 32);
         room->userdata = body_item.get();
-        room_body_items.push_back(body_item);
         rooms_page->add_body_item(body_item);
         room_body_item_by_room[room] = body_item;
     }
 
+    void MatrixQuickMedia::leave_room(RoomData *room, LeaveType leave_type, const std::string &reason) {
+        room_body_item_by_room.erase(room);
+        rooms_page->remove_body_item_by_room_id(room->id);
+        room_tags_page->remove_body_item_by_room_id(room->id);
+        if(leave_type != LeaveType::LEAVE)
+            show_notification("QuickMedia", reason);
+    }
+
     void MatrixQuickMedia::room_add_tag(RoomData *room, const std::string &tag) {
         room_tags_page->add_room_body_item_to_tag(room_body_item_by_room[room], tag);
     }
@@ -240,6 +268,23 @@ namespace QuickMedia {
         room_messages_data.is_initial_sync = is_initial_sync;
     }
 
+    void MatrixQuickMedia::add_invite(const std::string &room_id, const Invite &invite) {
+        auto body_item = BodyItem::create(invite.room_name);
+        body_item->set_description("Invited by " + invite.invited_by->display_name + " (" + invite.invited_by->user_id + ")");
+        body_item->url = room_id;
+        body_item->thumbnail_url = invite.room_avatar_url;
+        body_item->thumbnail_mask_type = ThumbnailMaskType::CIRCLE;
+        body_item->thumbnail_size = sf::Vector2i(32, 32);
+        body_item->set_timestamp(invite.timestamp);
+        invites_page->add_body_item(std::move(body_item));
+        if(invite.new_invite)
+            show_notification("QuickMedia matrix - " + invite.room_name, "You were invited to " + invite.room_name + " by " + invite.invited_by->display_name + " (" + invite.invited_by->user_id + ")");
+    }
+
+    void MatrixQuickMedia::remove_invite(const std::string &room_id) {
+        invites_page->remove_body_item_by_room_id(room_id);
+    }
+
     static int find_top_body_position_for_unread_room(const BodyItems &room_body_items, BodyItem *item_to_swap) {
         for(int i = 0; i < (int)room_body_items.size(); ++i) {
             const auto &body_item = room_body_items[i];
@@ -269,6 +314,10 @@ namespace QuickMedia {
     }
 
     void MatrixQuickMedia::update(MatrixPageType page_type) {
+        update_pending_room_messages(page_type);
+    }
+
+    void MatrixQuickMedia::update_pending_room_messages(MatrixPageType page_type) {
         std::lock_guard<std::mutex> lock(pending_room_messages_mutex);
         bool is_window_focused = program->is_window_focused();
         RoomData *current_room = program->get_current_chat_room();
@@ -337,17 +386,17 @@ namespace QuickMedia {
 
     MatrixRoomsPage::MatrixRoomsPage(Program *program, Body *body, std::string title, MatrixRoomTagsPage *room_tags_page) : Page(program), body(body), title(std::move(title)), room_tags_page(room_tags_page) {
         if(room_tags_page)
-            room_tags_page->current_rooms_page = this;
+            room_tags_page->set_current_rooms_page(this);
     }
 
     MatrixRoomsPage::~MatrixRoomsPage() {
         if(room_tags_page)
-            room_tags_page->current_rooms_page = nullptr;
+            room_tags_page->set_current_rooms_page(nullptr);
     }
 
     PluginResult MatrixRoomsPage::submit(const std::string &title, const std::string &url, std::vector<Tab> &result_tabs) {
         (void)title;
-        auto chat_page = std::make_unique<MatrixChatPage>(program, url);
+        auto chat_page = std::make_unique<MatrixChatPage>(program, url, this);
         chat_page->matrix_delegate = matrix_delegate;
         result_tabs.push_back(Tab{nullptr, std::move(chat_page), nullptr});
         return PluginResult::OK;
@@ -356,6 +405,17 @@ namespace QuickMedia {
     void MatrixRoomsPage::update() {
         {
             std::lock_guard<std::mutex> lock(mutex);
+            for(const std::string &room_id : pending_remove_body_items) {
+                remove_body_item_by_url(body->items, room_id);
+                // TODO: There can be a race condition where current_chat_page is set after entering a room and then we will enter a room we left
+                if(current_chat_page && current_chat_page->room_id == room_id) {
+                    program->set_go_to_previous_page();
+                    body->select_first_item();
+                    current_chat_page = nullptr;
+                }
+            }
+            pending_remove_body_items.clear();
+            body->clamp_selection();
             body->append_items(std::move(room_body_items));
         }
         matrix_delegate->update(MatrixPageType::ROOM_LIST);
@@ -389,9 +449,19 @@ namespace QuickMedia {
         }
     }
 
+    void MatrixRoomsPage::remove_body_item_by_room_id(const std::string &room_id) {
+        std::lock_guard<std::mutex> lock(mutex);
+        pending_remove_body_items.push_back(room_id);
+    }
+
+    void MatrixRoomsPage::set_current_chat_page(MatrixChatPage *chat_page) {
+        std::lock_guard<std::mutex> lock(mutex);
+        current_chat_page = chat_page;
+    }
+
     PluginResult MatrixRoomTagsPage::submit(const std::string &title, const std::string &url, std::vector<Tab> &result_tabs) {
         (void)title;
-        std::lock_guard<std::mutex> lock(mutex);
+        std::lock_guard<std::recursive_mutex> lock(mutex);
         auto body = create_body();
         Body *body_ptr = body.get();
         TagData &tag_data = tag_body_items_by_name[url];
@@ -406,7 +476,7 @@ namespace QuickMedia {
     // TODO: Also add/remove body items to above body (in submit)
     void MatrixRoomTagsPage::update() {
         {
-            std::lock_guard<std::mutex> lock(mutex);
+            std::lock_guard<std::recursive_mutex> lock(mutex);
             for(auto &it : remove_room_body_items_by_tags) {
                 auto tag_body_it = tag_body_items_by_name.find(it.first);
                 if(tag_body_it == tag_body_items_by_name.end())
@@ -455,22 +525,116 @@ namespace QuickMedia {
     }
 
     void MatrixRoomTagsPage::add_room_body_item_to_tag(std::shared_ptr<BodyItem> body_item, const std::string &tag) {
-        std::lock_guard<std::mutex> lock(mutex);
+        std::lock_guard<std::recursive_mutex> lock(mutex);
         add_room_body_items_by_tags[tag].push_back(body_item);
     }
 
     void MatrixRoomTagsPage::remove_room_body_item_from_tag(std::shared_ptr<BodyItem> body_item, const std::string &tag) {
-        std::lock_guard<std::mutex> lock(mutex);
+        std::lock_guard<std::recursive_mutex> lock(mutex);
         remove_room_body_items_by_tags[tag].push_back(body_item);
     }
 
     void MatrixRoomTagsPage::move_room_to_top(RoomData *room) {
+        std::lock_guard<std::recursive_mutex> lock(mutex);
         if(current_rooms_page)
             current_rooms_page->move_room_to_top(room);
     }
 
+    void MatrixRoomTagsPage::remove_body_item_by_room_id(const std::string &room_id) {
+        std::lock_guard<std::recursive_mutex> lock(mutex);
+        for(auto it = tag_body_items_by_name.begin(); it != tag_body_items_by_name.end();) {
+            remove_body_item_by_url(it->second.room_body_items, room_id);
+            if(it->second.room_body_items.empty())
+                it = tag_body_items_by_name.erase(it);
+            else
+                ++it;
+        }
+        if(current_rooms_page)
+            current_rooms_page->remove_body_item_by_room_id(room_id);
+    }
+
+    void MatrixRoomTagsPage::set_current_rooms_page(MatrixRoomsPage *rooms_page) {
+        std::lock_guard<std::recursive_mutex> lock(mutex);
+        current_rooms_page = rooms_page;
+    }
+
+    MatrixInvitesPage::MatrixInvitesPage(Program *program, Matrix *matrix, Body *body) : Page(program), matrix(matrix), body(body) {
+
+    }
+
+    PluginResult MatrixInvitesPage::submit(const std::string &title, const std::string &url, std::vector<Tab> &result_tabs) {
+        auto body = create_body();
+        body->items.push_back(BodyItem::create("Accept"));
+        body->items.push_back(BodyItem::create("Decline"));
+        result_tabs.push_back(Tab{std::move(body), std::make_unique<MatrixInviteDetailsPage>(program, matrix, this, url, "Invite to " + title), nullptr});
+        return PluginResult::OK;
+    }
+
+    PluginResult MatrixInviteDetailsPage::submit(const std::string &title, const std::string&, std::vector<Tab>&) {
+        TaskResult task_result = program->run_task_with_loading_screen([this, title]() {
+            if(title == "Accept")
+                return matrix->join_room(room_id) == PluginResult::OK;
+            else if(title == "Decline")
+                return matrix->leave_room(room_id) == PluginResult::OK;
+            return false;
+        });
+
+        if(task_result == TaskResult::TRUE) {
+            invites_page->remove_body_item_by_room_id(room_id);
+        } else if(task_result == TaskResult::FALSE) {
+            std::string action_str;
+            if(title == "Accept")
+                action_str = "accept";
+            else if(title == "Decline")
+                action_str = "decline";
+            show_notification("QuickMedia", "Failed to " + action_str + " the room invite", Urgency::CRITICAL);
+        }
+
+        program->set_go_to_previous_page();
+        return PluginResult::OK;
+    }
+
+    void MatrixInvitesPage::update() {
+        std::lock_guard<std::mutex> lock(mutex);
+
+        for(const std::string &room_id : pending_remove_body_items) {
+            remove_body_item_by_url(body->items, room_id);
+        }
+        pending_remove_body_items.clear();
+        body->clamp_selection();
+
+        // TODO: Insert in reverse order (to show the latest invite at the top?)
+        body->insert_items_by_timestamps(std::move(body_items));
+        if(body->items.size() != prev_invite_count) {
+            prev_invite_count = body->items.size();
+            title = "Invites (" + std::to_string(body->items.size()) + ")";
+        }
+    }
+
+    void MatrixInvitesPage::add_body_item(std::shared_ptr<BodyItem> body_item) {
+        std::lock_guard<std::mutex> lock(mutex);
+        body_items.push_back(std::move(body_item));
+    }
+
+    void MatrixInvitesPage::remove_body_item_by_room_id(const std::string &room_id) {
+        std::lock_guard<std::mutex> lock(mutex);
+        pending_remove_body_items.push_back(room_id);
+    }
+
+    MatrixChatPage::MatrixChatPage(Program *program, std::string room_id, MatrixRoomsPage *rooms_page) : Page(program), room_id(std::move(room_id)), rooms_page(rooms_page) {
+        if(rooms_page)
+            rooms_page->set_current_chat_page(this);
+    }
+
+    MatrixChatPage::~MatrixChatPage() {
+        if(rooms_page)
+            rooms_page->set_current_chat_page(nullptr);
+    }
+
     void MatrixChatPage::update() {
         matrix_delegate->update(MatrixPageType::CHAT);
+        if(rooms_page)
+            rooms_page->update();
     }
 
     void Matrix::start_sync(MatrixDelegate *delegate) {
@@ -641,94 +805,106 @@ namespace QuickMedia {
             return PluginResult::OK;
 
         const rapidjson::Value &join_json = GetMember(rooms_json, "join");
-        if(!join_json.IsObject())
-            return PluginResult::OK;
+        if(join_json.IsObject()) {
+            for(auto const &it : join_json.GetObject()) {
+                if(!it.value.IsObject())
+                    continue;
 
-        for(auto const &it : join_json.GetObject()) {
-            if(!it.value.IsObject())
-                continue;
+                const rapidjson::Value &room_id = it.name;
+                if(!room_id.IsString())
+                    continue;
 
-            const rapidjson::Value &room_id = it.name;
-            if(!room_id.IsString())
-                continue;
+                std::string room_id_str = room_id.GetString();
 
-            std::string room_id_str = room_id.GetString();
+                bool is_new_room = false;
+                RoomData *room = get_room_by_id(room_id_str);
+                if(!room) {
+                    auto new_room = std::make_unique<RoomData>();
+                    new_room->id = room_id_str;
+                    room = new_room.get();
+                    add_room(std::move(new_room));
+                    is_new_room = true;
+                }
 
-            bool is_new_room = false;
-            RoomData *room = get_room_by_id(room_id_str);
-            if(!room) {
-                auto new_room = std::make_unique<RoomData>();
-                new_room->id = room_id_str;
-                room = new_room.get();
-                add_room(std::move(new_room));
-                is_new_room = true;
-            }
+                const rapidjson::Value &state_json = GetMember(it.value, "state");
+                if(state_json.IsObject()) {
+                    const rapidjson::Value &events_json = GetMember(state_json, "events");
+                    events_add_user_info(events_json, room);
+                    events_set_room_name(events_json, room);
+                    events_add_pinned_events(events_json, room);
+                }
 
-            const rapidjson::Value &state_json = GetMember(it.value, "state");
-            if(state_json.IsObject()) {
-                const rapidjson::Value &events_json = GetMember(state_json, "events");
-                events_add_user_info(events_json, room);
-                events_set_room_name(events_json, room);
-                events_add_pinned_events(events_json, room);
-            }
+                const rapidjson::Value &ephemeral_json = GetMember(it.value, "ephemeral");
 
-            const rapidjson::Value &ephemeral_json = GetMember(it.value, "ephemeral");
+                const rapidjson::Value &timeline_json = GetMember(it.value, "timeline");
+                if(timeline_json.IsObject()) {
+                    if(!room->has_prev_batch()) {
+                        // This may be non-existent if this is the first event in the room
+                        const rapidjson::Value &prev_batch_json = GetMember(timeline_json, "prev_batch");
+                        if(prev_batch_json.IsString())
+                            room->set_prev_batch(prev_batch_json.GetString());
+                    }
 
-            const rapidjson::Value &timeline_json = GetMember(it.value, "timeline");
-            if(timeline_json.IsObject()) {
-                if(!room->has_prev_batch()) {
-                    // This may be non-existent if this is the first event in the room
-                    const rapidjson::Value &prev_batch_json = GetMember(timeline_json, "prev_batch");
-                    if(prev_batch_json.IsString())
-                        room->set_prev_batch(prev_batch_json.GetString());
-                }
+                    // TODO: Use /_matrix/client/r0/notifications ? or remove this and always look for displayname/user_id in messages
+                    bool has_unread_notifications = false;
+                    const rapidjson::Value &unread_notification_json = GetMember(it.value, "unread_notifications");
+                    if(unread_notification_json.IsObject()) {
+                        const rapidjson::Value &highlight_count_json = GetMember(unread_notification_json, "highlight_count");
+                        if(highlight_count_json.IsNumber() && highlight_count_json.GetInt64() > 0)
+                            has_unread_notifications = true;
+                    }
 
-                // TODO: Use /_matrix/client/r0/notifications ? or remove this and always look for displayname/user_id in messages
-                bool has_unread_notifications = false;
-                const rapidjson::Value &unread_notification_json = GetMember(it.value, "unread_notifications");
-                if(unread_notification_json.IsObject()) {
-                    const rapidjson::Value &highlight_count_json = GetMember(unread_notification_json, "highlight_count");
-                    if(highlight_count_json.IsNumber() && highlight_count_json.GetInt64() > 0)
-                        has_unread_notifications = true;
+                    const rapidjson::Value &events_json = GetMember(timeline_json, "events");
+                    events_add_user_info(events_json, room);
+                    events_set_room_name(events_json, room);
+                    // We want to do this before adding messages to know if a message that mentions us is a new mention
+                    if(ephemeral_json.IsObject()) {
+                        const rapidjson::Value &events_json = GetMember(ephemeral_json, "events");
+                        events_add_user_read_markers(events_json, room);
+                    }
+                    events_add_messages(events_json, room, MessageDirection::AFTER, delegate, has_unread_notifications);
+                    events_add_pinned_events(events_json, room);
+                } else {
+                    if(ephemeral_json.IsObject()) {
+                        const rapidjson::Value &events_json = GetMember(ephemeral_json, "events");
+                        events_add_user_read_markers(events_json, room);
+                    }
                 }
 
-                const rapidjson::Value &events_json = GetMember(timeline_json, "events");
-                events_add_user_info(events_json, room);
-                events_set_room_name(events_json, room);
-                // We want to do this before adding messages to know if a message that mentions us is a new mention
-                if(ephemeral_json.IsObject()) {
-                    const rapidjson::Value &events_json = GetMember(ephemeral_json, "events");
-                    events_add_user_read_markers(events_json, room);
+                auto invites_it = invites.find(room_id_str);
+                if(invites_it != invites.end()) {
+                    // TODO: Show leave type and reason and who caused the invite to be removed
+                    delegate->remove_invite(room_id_str);
+                    invites.erase(invites_it);
                 }
-                events_add_messages(events_json, room, MessageDirection::AFTER, delegate, has_unread_notifications);
-                events_add_pinned_events(events_json, room);
-            } else {
-                if(ephemeral_json.IsObject()) {
-                    const rapidjson::Value &events_json = GetMember(ephemeral_json, "events");
-                    events_add_user_read_markers(events_json, room);
-                }
-            }
 
-            if(is_new_room)
-                delegate->room_create(room);
+                if(is_new_room)
+                    delegate->join_room(room);
 
-            const rapidjson::Value &account_data_json = GetMember(it.value, "account_data");
-            if(account_data_json.IsObject()) {
-                const rapidjson::Value &events_json = GetMember(account_data_json, "events");
-                events_add_room_to_tags(events_json, room, delegate);
-            }
-            
-            if(is_new_room) {
-                room->acquire_room_lock();
-                std::set<std::string> &room_tags = room->get_tags_unsafe();
-                if(room_tags.empty()) {
-                    room_tags.insert(OTHERS_ROOM_TAG);
-                    delegate->room_add_tag(room, OTHERS_ROOM_TAG);
+                const rapidjson::Value &account_data_json = GetMember(it.value, "account_data");
+                if(account_data_json.IsObject()) {
+                    const rapidjson::Value &events_json = GetMember(account_data_json, "events");
+                    events_add_room_to_tags(events_json, room, delegate);
+                }
+                
+                if(is_new_room) {
+                    room->acquire_room_lock();
+                    std::set<std::string> &room_tags = room->get_tags_unsafe();
+                    if(room_tags.empty()) {
+                        room_tags.insert(OTHERS_ROOM_TAG);
+                        delegate->room_add_tag(room, OTHERS_ROOM_TAG);
+                    }
+                    room->release_room_lock();
                 }
-                room->release_room_lock();
             }
         }
 
+        const rapidjson::Value &leave_json = GetMember(rooms_json, "leave");
+        remove_rooms(leave_json, delegate);
+
+        const rapidjson::Value &invite_json = GetMember(rooms_json, "invite");
+        add_invites(invite_json, delegate);
+
         return PluginResult::OK;
     }
 
@@ -1195,6 +1371,26 @@ namespace QuickMedia {
             room_data->set_name(name_json.GetString());
         }
 
+        for(const rapidjson::Value &event_item_json : events_json.GetArray()) {
+            if(!event_item_json.IsObject())
+                continue;
+
+            const rapidjson::Value &type_json = GetMember(event_item_json, "type");
+            if(!type_json.IsString() || strcmp(type_json.GetString(), "m.room.avatar") != 0)
+                continue;
+            
+            const rapidjson::Value &content_json = GetMember(event_item_json, "content");
+            if(!content_json.IsObject())
+                continue;
+
+            const rapidjson::Value &url_json = GetMember(content_json, "url");
+            if(!url_json.IsString() || strncmp(url_json.GetString(), "mxc://", 6) != 0)
+                continue;
+
+            std::string url_json_str = url_json.GetString() + 6;
+            room_data->set_avatar_url(homeserver + "/_matrix/media/r0/thumbnail/" + std::move(url_json_str) + "?width=32&height=32&method=crop");
+        }
+
         bool has_room_name = room_data->has_name();
         bool has_room_avatar_url = room_data->has_avatar_url();
 
@@ -1235,26 +1431,6 @@ namespace QuickMedia {
                 has_room_avatar_url = true;
             }
         }
-
-        for(const rapidjson::Value &event_item_json : events_json.GetArray()) {
-            if(!event_item_json.IsObject())
-                continue;
-
-            const rapidjson::Value &type_json = GetMember(event_item_json, "type");
-            if(!type_json.IsString() || strcmp(type_json.GetString(), "m.room.avatar") != 0)
-                continue;
-            
-            const rapidjson::Value &content_json = GetMember(event_item_json, "content");
-            if(!content_json.IsObject())
-                continue;
-
-            const rapidjson::Value &url_json = GetMember(content_json, "url");
-            if(!url_json.IsString() || strncmp(url_json.GetString(), "mxc://", 6) != 0)
-                continue;
-
-            std::string url_json_str = url_json.GetString() + 6;
-            room_data->set_avatar_url(homeserver + "/_matrix/media/r0/thumbnail/" + std::move(url_json_str) + "?width=32&height=32&method=crop");
-        }
     }
 
     void Matrix::events_add_pinned_events(const rapidjson::Value &events_json, RoomData *room_data) {
@@ -1357,10 +1533,165 @@ namespace QuickMedia {
         }
     }
 
+    void Matrix::add_invites(const rapidjson::Value &invite_json, MatrixDelegate *delegate) {
+        if(!invite_json.IsObject())
+            return;
+
+        for(auto const &it : invite_json.GetObject()) {
+            if(!it.value.IsObject())
+                continue;
+
+            const rapidjson::Value &room_id = it.name;
+            if(!room_id.IsString())
+                continue;
+
+            const rapidjson::Value &invite_state_json = GetMember(it.value, "invite_state");
+            if(!invite_state_json.IsObject())
+                continue;
+
+            const rapidjson::Value &events_json = GetMember(invite_state_json, "events");
+            if(!events_json.IsArray())
+                continue;
+            
+            for(const rapidjson::Value &event_json : events_json.GetArray()) {
+                if(!event_json.IsObject())
+                    continue;
+                
+                const rapidjson::Value &type_json = GetMember(event_json, "type");
+                if(!type_json.IsString())
+                    continue;
+
+                if(strcmp(type_json.GetString(), "m.room.member") != 0)
+                    continue;
+
+                const rapidjson::Value &content_json = GetMember(event_json, "content");
+                if(!content_json.IsObject())
+                    continue;
+
+                const rapidjson::Value &sender_json = GetMember(event_json, "sender");
+                if(!sender_json.IsString())
+                    continue;
+
+                const rapidjson::Value &timestamp_json = GetMember(event_json, "origin_server_ts");
+                if(!timestamp_json.IsNumber())
+                    continue;
+                
+                const rapidjson::Value &membership_json = GetMember(content_json, "membership");
+                if(membership_json.IsString() && strcmp(membership_json.GetString(), "invite") == 0) {
+                    Invite invite;
+                    RoomData invite_room;
+                    events_add_user_info(events_json, &invite_room);
+                    events_set_room_name(events_json, &invite_room);
+
+                    auto invited_by = invite_room.get_user_by_id(sender_json.GetString());
+                    if(!invited_by) {
+                        fprintf(stderr, "Invited by unknown user. Bug in homeserver?\n");
+                        break;
+                    }
+
+                    invite.room_name = invite_room.get_name();
+                    invite.room_avatar_url = invite_room.get_avatar_url();
+                    invite.invited_by = invited_by;
+                    invite.timestamp = timestamp_json.GetInt64();
+                    invite.new_invite = !next_batch.empty();
+
+                    std::string room_id_str(room_id.GetString(), room_id.GetStringLength());
+                    delegate->add_invite(room_id_str, invite);
+                    invites[room_id_str] = std::move(invite);
+                    break;
+                }
+            }
+        }
+    }
+
+    void Matrix::remove_rooms(const rapidjson::Value &leave_json, MatrixDelegate *delegate) {
+        if(!leave_json.IsObject())
+            return;
+
+        for(auto const &it : leave_json.GetObject()) {
+            if(!it.value.IsObject())
+                continue;
+
+            const rapidjson::Value &room_id = it.name;
+            if(!room_id.IsString())
+                continue;
+
+            std::string room_id_str(room_id.GetString(), room_id.GetStringLength());
+            auto invites_it = invites.find(room_id_str);
+            if(invites_it != invites.end()) {
+                // TODO: Show leave type and reason and who caused the invite to be removed
+                delegate->remove_invite(room_id_str);
+                invites.erase(invites_it);
+            }
+
+            const rapidjson::Value &timeline_json = GetMember(it.value, "timeline");
+            if(!timeline_json.IsObject())
+                continue;
+
+            const rapidjson::Value &events_json = GetMember(timeline_json, "events");
+            if(!events_json.IsArray())
+                continue;
+
+            for(const rapidjson::Value &event_json : events_json.GetArray()) {
+                if(!event_json.IsObject())
+                    continue;
+
+                const rapidjson::Value &type_json = GetMember(event_json, "type");
+                if(!type_json.IsString() || strcmp(type_json.GetString(), "m.room.member") != 0)
+                    continue;
+
+                const rapidjson::Value &sender_json = GetMember(event_json, "sender");
+                if(!sender_json.IsString())
+                    continue;
+
+                const rapidjson::Value &content_json = GetMember(event_json, "content");
+                if(!content_json.IsObject())
+                    continue;
+
+                const rapidjson::Value &membership_json = GetMember(content_json, "membership");
+                if(!membership_json.IsString())
+                    continue;
+
+                std::string reason_str;
+                const rapidjson::Value &reason_json = GetMember(content_json, "reason");
+                if(reason_json.IsString())
+                    reason_str = reason_json.GetString();
+
+                auto room = get_room_by_id(room_id_str);
+                if(!room)
+                    continue;
+
+                std::string desc;
+                LeaveType leave_type;
+                if(strcmp(membership_json.GetString(), "leave") == 0) {
+                    if(strcmp(sender_json.GetString(), user_id.c_str()) == 0) {
+                        leave_type = LeaveType::LEAVE;
+                    } else {
+                        leave_type = LeaveType::KICKED;
+                        desc = "You were kicked from " + room->get_name() + " by " + sender_json.GetString();
+                    }
+                } else if(strcmp(membership_json.GetString(), "ban") == 0) {
+                    leave_type = LeaveType::BANNED;
+                    desc = "You were banned from " + room->get_name() + " by " + sender_json.GetString();
+                } else {
+                    continue;
+                }
+
+                if(!reason_str.empty())
+                    desc += ", reason: " + reason_str;
+
+                delegate->leave_room(room, leave_type, desc);
+                remove_room(room_id_str);
+                break;
+            }
+        }
+    }
+
     PluginResult Matrix::get_previous_room_messages(RoomData *room_data) {
         std::string from = room_data->get_prev_batch();
         if(from.empty()) {
             fprintf(stderr, "Info: missing previous batch for room: %s, using /sync next batch\n", room_data->id.c_str());
+            // TODO: When caching /sync, remember to add lock around getting next_batch!
             from = next_batch;
             if(from.empty()) {
                 fprintf(stderr, "Error: missing next batch!\n");
@@ -2008,12 +2339,10 @@ namespace QuickMedia {
         };
 
         std::string server_response;
-        if(download_to_string(homeserver + "/_matrix/client/r0/logout", server_response, std::move(additional_args), use_tor, true) != DownloadResult::OK)
-            return PluginResult::NET_ERR;
+        download_to_string(homeserver + "/_matrix/client/r0/logout", server_response, std::move(additional_args), use_tor, true);
 
         // Make sure all fields are reset here!
         rooms.clear();
-        room_list_read_index = 0;
         room_data_by_id.clear();
         user_id.clear();
         username.clear();
@@ -2021,6 +2350,7 @@ namespace QuickMedia {
         homeserver.clear();
         upload_limit.reset();
         next_batch.clear();
+        invites.clear();
 
         return PluginResult::OK;
     }
@@ -2119,9 +2449,10 @@ namespace QuickMedia {
 
         std::string server_response;
         // We want to make any request to the server that can verify that our token is still valid, doesn't matter which call
-        if(download_to_string(homeserver + "/_matrix/client/r0/account/whoami", server_response, std::move(additional_args), use_tor, true) != DownloadResult::OK) {
+        DownloadResult download_result = download_to_string(homeserver + "/_matrix/client/r0/account/whoami", server_response, std::move(additional_args), use_tor, true);
+        if(download_result != DownloadResult::OK) {
             fprintf(stderr, "Matrix whoami response: %s\n", server_response.c_str());
-            return PluginResult::NET_ERR;
+            return download_result_to_plugin_result(download_result);
         }
 
         this->user_id = std::move(user_id);
@@ -2148,10 +2479,8 @@ namespace QuickMedia {
         };
 
         std::string server_response;
-        if(download_to_string(homeserver + "/_matrix/client/r0/rooms/" + room->id + "/typing/" + url_param_encode(user_id) , server_response, std::move(additional_args), use_tor, true) != DownloadResult::OK)
-            return PluginResult::NET_ERR;
-
-        return PluginResult::OK;
+        DownloadResult download_result = download_to_string(homeserver + "/_matrix/client/r0/rooms/" + room->id + "/typing/" + url_param_encode(user_id) , server_response, std::move(additional_args), use_tor, true);
+        return download_result_to_plugin_result(download_result);
     }
 
     PluginResult Matrix::on_stop_typing(RoomData *room) {
@@ -2170,10 +2499,8 @@ namespace QuickMedia {
         };
 
         std::string server_response;
-        if(download_to_string(homeserver + "/_matrix/client/r0/rooms/" + room->id + "/typing/" + url_param_encode(user_id), server_response, std::move(additional_args), use_tor, true) != DownloadResult::OK)
-            return PluginResult::NET_ERR;
-
-        return PluginResult::OK;
+        DownloadResult download_result = download_to_string(homeserver + "/_matrix/client/r0/rooms/" + room->id + "/typing/" + url_param_encode(user_id), server_response, std::move(additional_args), use_tor, true);
+        return download_result_to_plugin_result(download_result);
     }
 
     PluginResult Matrix::set_read_marker(RoomData *room, const Message *message) {
@@ -2194,15 +2521,42 @@ namespace QuickMedia {
         };
 
         std::string server_response;
-        if(download_to_string(homeserver + "/_matrix/client/r0/rooms/" + room->id + "/read_markers", server_response, std::move(additional_args), use_tor, true) != DownloadResult::OK)
-            return PluginResult::NET_ERR;
+        DownloadResult download_result = download_to_string(homeserver + "/_matrix/client/r0/rooms/" + room->id + "/read_markers", server_response, std::move(additional_args), use_tor, true);
+        if(download_result != DownloadResult::OK) return download_result_to_plugin_result(download_result);
 
         auto me = get_me(room);
         if(me)
             room->set_user_read_marker(me, message->event_id);
+
         return PluginResult::OK;
     }
 
+    PluginResult Matrix::join_room(const std::string &room_id) {
+        std::vector<CommandArg> additional_args = {
+            { "-X", "POST" },
+            { "-H", "content-type: application/json" },
+            { "--data-binary", "{}" },
+            { "-H", "Authorization: Bearer " + access_token }
+        };
+
+        std::string server_response;
+        DownloadResult download_result = download_to_string(homeserver + "/_matrix/client/r0/join/" + room_id, server_response, std::move(additional_args), use_tor, true);
+        return download_result_to_plugin_result(download_result);
+    }
+
+    PluginResult Matrix::leave_room(const std::string &room_id) {
+        std::vector<CommandArg> additional_args = {
+            { "-X", "POST" },
+            { "-H", "content-type: application/json" },
+            { "--data-binary", "{}" },
+            { "-H", "Authorization: Bearer " + access_token }
+        };
+
+        std::string server_response;
+        DownloadResult download_result = download_to_string(homeserver + "/_matrix/client/r0/rooms/" + room_id + "/leave", server_response, std::move(additional_args), use_tor, true);
+        return download_result_to_plugin_result(download_result);
+    }
+
     bool Matrix::was_message_posted_by_me(void *message) {
         Message *message_typed = (Message*)message;
         return user_id == message_typed->user->user_id;
@@ -2264,6 +2618,18 @@ namespace QuickMedia {
         rooms.push_back(std::move(room));
     }
 
+    void Matrix::remove_room(const std::string &room_id) {
+        std::lock_guard<std::mutex> lock(room_data_mutex);
+        auto room_it = room_data_by_id.find(room_id);
+        if(room_it == room_data_by_id.end())
+            return;
+
+        // We want to clear data instead of removing the object iself becasue we want to instance to still be valid,
+        // also in the future we can have a "history" tag for rooms we have just left
+        rooms[room_it->second]->clear_data();
+        room_data_by_id.erase(room_it);
+    }
+
     DownloadResult Matrix::download_json(rapidjson::Document &result, const std::string &url, std::vector<CommandArg> additional_args, bool use_browser_useragent, std::string *err_msg) const {
         if(download_to_json(url, result, std::move(additional_args), use_tor, use_browser_useragent, err_msg == nullptr) != DownloadResult::OK) {
             // Cant get error since we parse directory to json. TODO: Make this work somehow?