Improved v12 support

CMakeLists.txt

@@ -618,7 +618,7 @@ if(USE_BUNDLED_MTXCLIENT)
     FetchContent_Declare(
         MatrixClient
             GIT_REPOSITORY https://github.com/Nheko-Reborn/mtxclient.git
-            GIT_TAG        v0.10.1
+            GIT_TAG        d6f10427d1c5e5b1a45f426274f8d2e8dd0b64be
     )
     set(BUILD_LIB_EXAMPLES OFF CACHE INTERNAL "")
     set(BUILD_LIB_TESTS OFF CACHE INTERNAL "")

resources/qml/TimelineSectionHeader.qml

@@ -89,6 +89,7 @@ Column {
                 anchors.left: parent.left
                 anchors.verticalCenter: parent.verticalCenter
 
+                isV12Creator: room.isV12Creator(userId)
                 powerlevel: userPowerlevel
                 height: fontMetrics.ascent
                 width: height
@@ -97,7 +98,7 @@ Column {
                 sourceSize.height: height
 
                 permissions: room ? room.permissions : null
-                visible: isAdmin || isModerator
+                visible: isAdmin || isModerator || isV12Creator
             }
 
             ToolTip.delay: Nheko.tooltipDelay

resources/qml/components/PowerlevelIndicator.qml

@@ -9,13 +9,14 @@ import im.nheko
 Image {
     required property int powerlevel
     required property var permissions
+    required property bool isV12Creator
 
     readonly property bool isAdmin: permissions ? permissions.changeLevel(MtxEvent.PowerLevels) <= powerlevel : false
     readonly property bool isModerator: permissions ? permissions.redactLevel() <= powerlevel : false
     readonly property bool isDefault: permissions ? permissions.defaultLevel() <= powerlevel : false
 
     readonly property string sourceUrl: {
-        if (isAdmin)
+        if (isAdmin || isV12Creator)
              return "image://colorimage/:/icons/icons/ui/ribbon_star.svg?";
         else if (isModerator)
             return "image://colorimage/:/icons/icons/ui/ribbon.svg?";
@@ -26,7 +27,9 @@ Image {
     source: sourceUrl + (ma.hovered ? palette.highlight : palette.buttonText)
     ToolTip.visible: ma.hovered
     ToolTip.text: {
-        if (isAdmin)
+        if (isV12Creator)
+            return qsTr("Creator");
+        else if (isAdmin)
             return qsTr("Administrator: %1").arg(powerlevel);
         else if (isModerator)
             return qsTr("Moderator: %1").arg(powerlevel);

resources/qml/dialogs/RoomMembers.qml

@@ -168,6 +168,7 @@ ApplicationWindow {
                             sourceSize.height: height
                             powerlevel: model.powerlevel
                             permissions: room.permissions
+                            isV12Creator: room.isV12Creator(model.mxid)
                         }
 
                         EncryptionIndicator {

src/Cache.cpp

@@ -4851,6 +4851,51 @@ Cache::getAccountData(lmdb::txn &txn, mtx::events::EventType type, const std::st
     return std::nullopt;
 }
 
+bool
+Cache::isV12Creator(const std::string &room_id, const std::string &user_id)
+{
+    auto txn   = ro_txn(this->db->env_);
+    auto state = this->getStatesDb(txn, room_id);
+
+    return this->isV12Creator(txn, state, user_id);
+}
+
+bool
+Cache::isV12Creator(lmdb::txn &txn, lmdb::dbi &state, const std::string &user_id)
+{
+    using namespace mtx::events;
+    using namespace mtx::events::state;
+
+    bool ok;
+    const int room_version = this->getRoomVersion(txn, state).toInt(&ok);
+    if (!ok || room_version < 12) {
+        return false;
+    }
+
+    std::string_view create_event;
+    if (state.get(txn, to_string(EventType::RoomCreate), create_event)) {
+        try {
+            const StateEvent<Create> evt =
+              nlohmann::json::parse(create_event).get<StateEvent<Create>>();
+            if (evt.sender == user_id) {
+                return true;
+            }
+
+            const std::optional<std::vector<std::string>> &additional_creators =
+              evt.content.additional_creators;
+            if (additional_creators &&
+                std::find(additional_creators->begin(), additional_creators->end(), user_id) !=
+                  additional_creators->end()) {
+                return true;
+            }
+        } catch (...) {
+            return false;
+        }
+    }
+
+    return false;
+}
+
 bool
 Cache::hasEnoughPowerLevel(const std::vector<mtx::events::EventType> &eventTypes,
                            const std::string &room_id,
@@ -4863,6 +4908,10 @@ Cache::hasEnoughPowerLevel(const std::vector<mtx::events::EventType> &eventTypes
     try {
         auto db_ = getStatesDb(txn, room_id);
 
+        if (this->isV12Creator(txn, db_, user_id)) {
+            return true;
+        }
+
         int64_t min_event_level = std::numeric_limits<int64_t>::max();
         int64_t user_level      = std::numeric_limits<int64_t>::min();
 
@@ -6129,6 +6178,13 @@ roomMembers(const std::string &room_id)
     return instance_->roomMembers(room_id);
 }
 
+//! Check if the given user is a room creator and that gives them an infinite PL.
+bool
+isV12Creator(const std::string &room_id, const std::string &user_id)
+{
+    return instance_->isV12Creator(room_id, user_id);
+}
+
 //! Check if the given user has power level greater than
 //! lowest power level of the given events.
 bool

src/Cache.h

@@ -123,6 +123,10 @@ runMigrations();
 std::vector<std::string>
 roomMembers(const std::string &room_id);
 
+//! Check if the given user is a room creator and that gives them an infinite PL.
+bool
+isV12Creator(const std::string &room_id, const std::string &user_id);
+
 //! Check if the given user has power level greater than than
 //! lowest power level of the given events.
 bool

src/Cache_p.h

@@ -145,6 +145,10 @@ public:
     //! Retrieve all the user ids from a room.
     std::vector<std::string> roomMembers(const std::string &room_id);
 
+    //! Check if the given user is a room creator and that gives them an infinite PL.
+    bool isV12Creator(const std::string &room_id, const std::string &user_id);
+    bool isV12Creator(lmdb::txn &txn, lmdb::dbi &state, const std::string &user_id);
+
     //! Check if the given user has power leve greater than than
     //! lowest power level of the given events.
     bool hasEnoughPowerLevel(const std::vector<mtx::events::EventType> &eventTypes,

src/MemberList.cpp

@@ -172,4 +172,28 @@ MemberList::filterAcceptsRow(int source_row, const QModelIndex &) const
                                                                         Qt::CaseInsensitive);
 }
 
+bool
+MemberList::lessThan(const QModelIndex &source_left, const QModelIndex &source_right) const
+{
+    if (this->sortRole() != MemberSortRoles::Powerlevel) {
+        return QSortFilterProxyModel::lessThan(source_left, source_right);
+    }
+
+    const QString &left =
+      this->m_model.data(source_left, MemberListBackend::Roles::Mxid).toString();
+    const QString &right =
+      this->m_model.data(source_right, MemberListBackend::Roles::Mxid).toString();
+
+    const std::string &room_id = this->roomId().toStdString();
+    if (cache::isV12Creator(room_id, left.toStdString())) {
+        if (!cache::isV12Creator(room_id, right.toStdString())) {
+            return false;
+        }
+        // If both are creators, sort by mxid.
+        return left < right;
+    }
+
+    return QSortFilterProxyModel::lessThan(source_left, source_right);
+}
+
 #include "moc_MemberList.cpp"

src/MemberList.h

@@ -122,6 +122,7 @@ public slots:
 
 protected:
     bool filterAcceptsRow(int source_row, const QModelIndex &source_parent) const override;
+    bool lessThan(const QModelIndex &source_left, const QModelIndex &source_right) const override;
 
 private:
     QString filterString;

src/timeline/Permissions.cpp

@@ -27,39 +27,45 @@ Permissions::invalidate()
 bool
 Permissions::canInvite()
 {
-    return pl.user_level(http::client()->user_id().to_string()) >= pl.invite;
+    const bool plCheck = pl.user_level(http::client()->user_id().to_string()) >= pl.invite;
+    return plCheck || this->isV12Creator();
 }
 
 bool
 Permissions::canBan()
 {
-    return pl.user_level(http::client()->user_id().to_string()) >= pl.ban;
+    const bool plCheck = pl.user_level(http::client()->user_id().to_string()) >= pl.ban;
+    return plCheck || this->isV12Creator();
 }
 
 bool
 Permissions::canKick()
 {
-    return pl.user_level(http::client()->user_id().to_string()) >= pl.kick;
+    const bool plCheck = pl.user_level(http::client()->user_id().to_string()) >= pl.kick;
+    return plCheck || this->isV12Creator();
 }
 
 bool
 Permissions::canRedact()
 {
-    return pl.user_level(http::client()->user_id().to_string()) >= pl.redact;
+    const bool plCheck = pl.user_level(http::client()->user_id().to_string()) >= pl.redact;
+    return plCheck || this->isV12Creator();
 }
 bool
 Permissions::canChange(int eventType)
 {
-    return pl.user_level(http::client()->user_id().to_string()) >=
+    const bool plCheck = pl.user_level(http::client()->user_id().to_string()) >=
-           pl.state_level(to_string(
+                         pl.state_level(to_string(qml_mtx_events::fromRoomEventType(
-             qml_mtx_events::fromRoomEventType(static_cast<qml_mtx_events::EventType>(eventType))));
+                           static_cast<qml_mtx_events::EventType>(eventType))));
+    return plCheck || this->isV12Creator();
 }
 bool
 Permissions::canSend(int eventType)
 {
-    return pl.user_level(http::client()->user_id().to_string()) >=
+    const bool plCheck = pl.user_level(http::client()->user_id().to_string()) >=
-           pl.event_level(to_string(
+                         pl.event_level(to_string(qml_mtx_events::fromRoomEventType(
-             qml_mtx_events::fromRoomEventType(static_cast<qml_mtx_events::EventType>(eventType))));
+                           static_cast<qml_mtx_events::EventType>(eventType))));
+    return plCheck || this->isV12Creator();
 }
 
 int
@@ -88,8 +94,15 @@ Permissions::sendLevel(int eventType)
 bool
 Permissions::canPingRoom()
 {
-    return pl.user_level(http::client()->user_id().to_string()) >=
+    const bool plCheck = pl.user_level(http::client()->user_id().to_string()) >=
-           pl.notification_level(mtx::events::state::notification_keys::room);
+                         pl.notification_level(mtx::events::state::notification_keys::room);
+    return plCheck || this->isV12Creator();
 }
 
+bool
+Permissions::isV12Creator()
+{
+    return cache::client()->isV12Creator(this->roomId_.toStdString(),
+                                         http::client()->user_id().to_string());
+}
 #include "moc_Permissions.cpp"

src/timeline/Permissions.h

@@ -36,6 +36,8 @@ public:
     const mtx::events::state::PowerLevels &powerlevelEvent() const { return pl; };
 
 private:
+    bool isV12Creator();
+
     QString roomId_;
     mtx::events::state::PowerLevels pl;
 };

src/timeline/TimelineModel.cpp

@@ -1414,6 +1414,12 @@ TimelineModel::readEvent(const std::string &id)
       !UserSettings::instance()->readReceipts());
 }
 
+bool
+TimelineModel::isV12Creator(const QString &id) const
+{
+    return cache::isV12Creator(this->roomId().toStdString(), id.toStdString());
+}
+
 QString
 TimelineModel::displayName(const QString &id) const
 {

src/timeline/TimelineModel.h

@@ -302,6 +302,7 @@ public:
     static QString getBareRoomLink(const QString &);
     static QString getRoomVias(const QString &);
 
+    Q_INVOKABLE bool isV12Creator(const QString &id) const;
     Q_INVOKABLE QString displayName(const QString &id) const;
     Q_INVOKABLE QString avatarUrl(const QString &id) const;
     Q_INVOKABLE QString formatDateSeparator(QDate date) const;