Merge branch 'PrismLauncher:develop' into version

.github/workflows/build.yml

@@ -7,6 +7,10 @@ on:
         description: Type of build (Debug, Release, RelWithDebInfo, MinSizeRel)
         type: string
         default: Debug
+      is_qt_cached:
+        description: Enable Qt caching or not
+        type: string
+        default: true
     secrets:
       SPARKLE_ED25519_KEY:
         description: Private key for signing Sparkle updates
@@ -102,14 +106,6 @@ jobs:
         with:
           submodules: 'true'
 
-      - name: Initialize CodeQL
-        if: runner.os == 'Linux' && matrix.qt_ver == 6
-        uses: github/codeql-action/init@v2
-        with:
-          config-file: ./.github/codeql/codeql-config.yml
-          queries: security-and-quality
-          languages: cpp, java
-
       - name: 'Setup MSYS2'
         if: runner.os == 'Windows' && matrix.msystem != ''
         uses: msys2/setup-msys2@v2
@@ -200,8 +196,7 @@ jobs:
            arch: ${{ matrix.qt_arch }}
            modules: ${{ matrix.qt_modules }}
            tools: ${{ matrix.qt_tools }}
-           cache: true
-           cache-key-prefix: ${{ matrix.qt_host }}-${{ matrix.qt_version }}-"${{ matrix.qt_modules }}"-qt_cache
+           cache: ${{ inputs.is_qt_cached }}
 
       - name: Prepare AppImage (Linux)
         if: runner.os == 'Linux' && matrix.qt_ver != 5
@@ -292,14 +287,6 @@ jobs:
         run: |
           ctest -E "^example64|example$" --test-dir build --output-on-failure -C ${{ inputs.build_type }} 
 
-      ##
-      # CODE SCAN
-      ##
-
-      - name: Perform CodeQL Analysis
-        if: runner.os == 'Linux' && matrix.qt_ver == 6
-        uses: github/codeql-action/analyze@v2
-
       ##
       # PACKAGE BUILDS
       ##
@@ -510,10 +497,10 @@ jobs:
           echo "VERSION=$ver_short" >> $GITHUB_ENV
       - name: Package Snap (Linux)
         id: snapcraft
-        if: runner.os == 'Linux' && matrix.qt_ver != 5
+        if: runner.os == 'Linux' && inputs.build_type == 'Debug'
         uses: snapcore/action-build@v1
       - name: Upload Snap (Linux)
-        if: runner.os == 'Linux' && matrix.qt_ver != 5
+        if: runner.os == 'Linux' && inputs.build_type == 'Debug'
         uses: actions/upload-artifact@v3
         with:
           name: prismlauncher_${{ env.VERSION }}_amd64.snap

.github/workflows/codeql.yml

@@ -0,0 +1,35 @@
+name: "CodeQL Code Scanning"
+
+on: [ push, pull_request, workflow_dispatch ]
+
+jobs:
+  CodeQL:
+    runs-on: ubuntu-latest
+    
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+        with:
+          submodules: 'true'
+
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v2
+        with:
+          config-file: ./.github/codeql/codeql-config.yml
+          queries: security-and-quality
+          languages: cpp, java
+
+      - name: Install Dependencies
+        run:  
+          sudo apt-get -y update
+
+          sudo apt-get -y install ninja-build extra-cmake-modules scdoc qtbase5-dev qtchooser qt5-qmake qtbase5-dev-tools libqt5core5a libqt5network5 libqt5gui5
+
+      - name: Configure and Build
+        run: |
+          cmake -S . -B build -DCMAKE_INSTALL_PREFIX=/usr -DLauncher_QT_VERSION_MAJOR=5 -G Ninja
+
+          cmake --build build
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v2

.github/workflows/trigger_builds.yml

@@ -30,5 +30,6 @@ jobs:
     uses: ./.github/workflows/build.yml
     with:
       build_type: Debug
+      is_qt_cached: true
     secrets:
       SPARKLE_ED25519_KEY: ${{ secrets.SPARKLE_ED25519_KEY }}

.github/workflows/trigger_release.yml

@@ -12,6 +12,7 @@ jobs:
     uses: ./.github/workflows/build.yml
     with:
       build_type: Release
+      is_qt_cached: false
     secrets:
       SPARKLE_ED25519_KEY: ${{ secrets.SPARKLE_ED25519_KEY }}
 

launcher/BaseInstance.h

@@ -151,7 +151,7 @@ public:
     void copyManagedPack(BaseInstance& other);
 
     /// guess log level from a line of game log
-    virtual MessageLevel::Enum guessLevel(const QString &line, MessageLevel::Enum level)
+    virtual MessageLevel::Enum guessLevel([[maybe_unused]] const QString &line, MessageLevel::Enum level)
     {
         return level;
     };

launcher/BaseVersionList.cpp

@@ -95,12 +95,12 @@ BaseVersionList::RoleList BaseVersionList::providesRoles() const
 int BaseVersionList::rowCount(const QModelIndex &parent) const
 {
     // Return count
-    return count();
+    return parent.isValid() ? 0 : count();
 }
 
 int BaseVersionList::columnCount(const QModelIndex &parent) const
 {
-    return 1;
+    return parent.isValid() ? 0 : 1;
 }
 
 QHash<int, QByteArray> BaseVersionList::roleNames() const

launcher/FileSystem.cpp

@@ -149,6 +149,9 @@ bool ensureFolderPathExists(QString foldernamepath)
     return success;
 }
 
+/// @brief Copies a directory and it's contents from src to dest
+/// @param offset subdirectory form src to copy to dest
+/// @return if there was an error during the filecopy
 bool copy::operator()(const QString& offset)
 {
     using copy_opts = fs::copy_options;

launcher/FileSystem.h

@@ -75,6 +75,7 @@ bool ensureFilePathExists(QString filenamepath);
  */
 bool ensureFolderPathExists(QString filenamepath);
 
+/// @brief Copies a directory and it's contents from src to dest
 class copy {
    public:
     copy(const QString& src, const QString& dst)

launcher/VersionProxyModel.cpp

@@ -311,14 +311,14 @@ QModelIndex VersionProxyModel::index(int row, int column, const QModelIndex &par
 
 int VersionProxyModel::columnCount(const QModelIndex &parent) const
 {
-    return m_columns.size();
+    return parent.isValid() ? 0 : m_columns.size();
 }
 
 int VersionProxyModel::rowCount(const QModelIndex &parent) const
 {
     if(sourceModel())
     {
-        return sourceModel()->rowCount();
+        return sourceModel()->rowCount(parent);
     }
     return 0;
 }

launcher/icons/IconList.cpp

@@ -242,7 +242,7 @@ Qt::DropActions IconList::supportedDropActions() const
     return Qt::CopyAction;
 }
 
-bool IconList::dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent)
+bool IconList::dropMimeData(const QMimeData *data, Qt::DropAction action, [[maybe_unused]] int row, [[maybe_unused]] int column, [[maybe_unused]] const QModelIndex &parent)
 {
     if (action == Qt::IgnoreAction)
         return true;
@@ -302,7 +302,7 @@ QVariant IconList::data(const QModelIndex &index, int role) const
 
 int IconList::rowCount(const QModelIndex &parent) const
 {
-    return icons.size();
+    return parent.isValid() ? 0 : icons.size();
 }
 
 void IconList::installIcons(const QStringList &iconFiles)

launcher/meta/Index.cpp

@@ -58,11 +58,11 @@ QVariant Index::data(const QModelIndex &index, int role) const
 }
 int Index::rowCount(const QModelIndex &parent) const
 {
-    return m_lists.size();
+    return parent.isValid() ? 0 : m_lists.size();
 }
 int Index::columnCount(const QModelIndex &parent) const
 {
-    return 1;
+    return parent.isValid() ? 0 : 1;
 }
 QVariant Index::headerData(int section, Qt::Orientation orientation, int role) const
 {

launcher/meta/JsonFormat.h

@@ -60,11 +60,6 @@ struct Require
     QString suggests;
 };
 
-inline Q_DECL_PURE_FUNCTION uint qHash(const Require &key, uint seed = 0) Q_DECL_NOTHROW
-{
-    return qHash(key.uid, seed);
-}
-
 using RequireSet = std::set<Require>;
 
 void parseIndex(const QJsonObject &obj, Index *ptr);

launcher/minecraft/PackProfile.cpp

@@ -613,7 +613,7 @@ QVariant PackProfile::data(const QModelIndex &index, int role) const
 
 bool PackProfile::setData(const QModelIndex& index, const QVariant& value, int role)
 {
-    if (!index.isValid() || index.row() < 0 || index.row() >= rowCount(index))
+    if (!index.isValid() || index.row() < 0 || index.row() >= rowCount(index.parent()))
     {
         return false;
     }
@@ -675,12 +675,12 @@ Qt::ItemFlags PackProfile::flags(const QModelIndex &index) const
 
 int PackProfile::rowCount(const QModelIndex &parent) const
 {
-    return d->components.size();
+    return parent.isValid() ? 0 : d->components.size();
 }
 
 int PackProfile::columnCount(const QModelIndex &parent) const
 {
-    return NUM_COLUMNS;
+    return parent.isValid() ? 0 : NUM_COLUMNS;
 }
 
 void PackProfile::move(const int index, const MoveDirection direction)

launcher/minecraft/Rule.h

@@ -104,7 +104,7 @@ public:
 class ImplicitRule : public Rule
 {
 protected:
-    virtual bool applies(const Library *, const RuntimeContext & runtimeContext)
+    virtual bool applies(const Library *, [[maybe_unused]] const RuntimeContext & runtimeContext)
     {
         return true;
     }

launcher/minecraft/WorldList.cpp

@@ -173,7 +173,7 @@ bool WorldList::resetIcon(int row)
 
 int WorldList::columnCount(const QModelIndex &parent) const
 {
-    return 4;
+    return parent.isValid()? 0 : 4;
 }
 
 QVariant WorldList::data(const QModelIndex &index, int role) const
@@ -398,8 +398,8 @@ void WorldList::installWorld(QFileInfo filename)
     w.install(m_dir.absolutePath());
 }
 
-bool WorldList::dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column,
-                             const QModelIndex &parent)
+bool WorldList::dropMimeData(const QMimeData *data, Qt::DropAction action, [[maybe_unused]] int row, [[maybe_unused]] int column,
+                             [[maybe_unused]] const QModelIndex &parent)
 {
     if (action == Qt::IgnoreAction)
         return true;

launcher/minecraft/WorldList.h

@@ -54,7 +54,7 @@ public:
 
     virtual int rowCount(const QModelIndex &parent = QModelIndex()) const
     {
-        return size();
+        return parent.isValid() ? 0 : static_cast<int>(size());
     };
     virtual QVariant headerData(int section, Qt::Orientation orientation,
                                 int role = Qt::DisplayRole) const;

launcher/minecraft/auth/AccountList.cpp

@@ -408,20 +408,20 @@ QVariant AccountList::headerData(int section, Qt::Orientation orientation, int r
     }
 }
 
-int AccountList::rowCount(const QModelIndex &) const
+int AccountList::rowCount(const QModelIndex &parent) const
 {
     // Return count
-    return count();
+    return parent.isValid() ? 0 : count();
 }
 
-int AccountList::columnCount(const QModelIndex &) const
+int AccountList::columnCount(const QModelIndex &parent) const
 {
-    return NUM_COLUMNS;
+    return parent.isValid() ? 0 : NUM_COLUMNS;
 }
 
 Qt::ItemFlags AccountList::flags(const QModelIndex &index) const
 {
-    if (index.row() < 0 || index.row() >= rowCount(index) || !index.isValid())
+    if (index.row() < 0 || index.row() >= rowCount(index.parent()) || !index.isValid())
     {
         return Qt::NoItemFlags;
     }

launcher/minecraft/mod/ModFolderModel.cpp

@@ -144,7 +144,7 @@ QVariant ModFolderModel::headerData(int section, Qt::Orientation orientation, in
 
 int ModFolderModel::columnCount(const QModelIndex &parent) const
 {
-    return NUM_COLUMNS;
+    return parent.isValid() ? 0 : NUM_COLUMNS;
 }
 
 Task* ModFolderModel::createUpdateTask()

launcher/minecraft/mod/ResourceFolderModel.cpp

@@ -426,7 +426,7 @@ QVariant ResourceFolderModel::data(const QModelIndex& index, int role) const
 bool ResourceFolderModel::setData(const QModelIndex& index, const QVariant& value, int role)
 {
     int row = index.row();
-    if (row < 0 || row >= rowCount(index) || !index.isValid())
+    if (row < 0 || row >= rowCount(index.parent()) || !index.isValid())
         return false;
 
     if (role == Qt::CheckStateRole)

launcher/minecraft/mod/ResourceFolderModel.h

@@ -90,8 +90,8 @@ class ResourceFolderModel : public QAbstractListModel {
     /* Basic columns */
     enum Columns { ACTIVE_COLUMN = 0, NAME_COLUMN, DATE_COLUMN, NUM_COLUMNS };
 
-    [[nodiscard]] int rowCount(const QModelIndex& = {}) const override { return size(); }
-    [[nodiscard]] int columnCount(const QModelIndex& = {}) const override { return NUM_COLUMNS; };
+    [[nodiscard]] int rowCount(const QModelIndex& parent = {}) const override { return parent.isValid() ? 0 : static_cast<int>(size()); }
+    [[nodiscard]] int columnCount(const QModelIndex& parent = {}) const override { return parent.isValid() ? 0 : NUM_COLUMNS; };
 
     [[nodiscard]] Qt::DropActions supportedDropActions() const override;
 
@@ -176,7 +176,7 @@ class ResourceFolderModel : public QAbstractListModel {
      *  if the resource is complex and has more stuff to parse.
      */
     virtual void onParseSucceeded(int ticket, QString resource_id);
-    virtual void onParseFailed(int ticket, QString resource_id) {}
+    virtual void onParseFailed(int ticket, QString resource_id) { Q_UNUSED(ticket); Q_UNUSED(resource_id); }
 
    protected:
     // Represents the relationship between a column's index (represented by the list index), and it's sorting key.

launcher/minecraft/mod/ResourcePackFolderModel.cpp

@@ -137,7 +137,7 @@ QVariant ResourcePackFolderModel::headerData(int section, Qt::Orientation orient
 
 int ResourcePackFolderModel::columnCount(const QModelIndex& parent) const
 {
-    return NUM_COLUMNS;
+    return parent.isValid() ? 0 : NUM_COLUMNS;
 }
 
 Task* ResourcePackFolderModel::createUpdateTask()

launcher/minecraft/mod/tasks/LocalModParseTask.cpp

@@ -121,7 +121,7 @@ ModDetails ReadMCModTOML(QByteArray contents)
         return {};
     }
     auto modsTable = tomlModsTable0->as_table();
-    if (!tomlModsTable0) {
+    if (!modsTable) {
         qWarning() << "Corrupted mods.toml? [[mods]] was not a table!";
         return {};
     }

launcher/modplatform/flame/FlameInstanceCreationTask.cpp

@@ -372,13 +372,20 @@ void FlameCreationTask::idResolverSucceeded(QEventLoop& loop)
     auto results = m_mod_id_resolver->getResults();
 
     // first check for blocked mods
-    QString text;
-    QList<QUrl> urls;
+    QList<BlockedMod> blocked_mods;
     auto anyBlocked = false;
     for (const auto& result : results.files.values()) {
         if (!result.resolved || result.url.isEmpty()) {
-            text += QString("%1: <a href='%2'>%2</a><br/>").arg(result.fileName, result.websiteUrl);
-            urls.append(QUrl(result.websiteUrl));
+
+            BlockedMod blocked_mod;
+            blocked_mod.name = result.fileName;
+            blocked_mod.websiteUrl = result.websiteUrl;
+            blocked_mod.hash = result.hash;
+            blocked_mod.matched = false;
+            blocked_mod.localPath = "";
+
+            blocked_mods.append(blocked_mod);
+
             anyBlocked = true;
         }
     }
@@ -388,11 +395,12 @@ void FlameCreationTask::idResolverSucceeded(QEventLoop& loop)
         auto message_dialog = new BlockedModsDialog(m_parent, tr("Blocked mods found"),
                                                    tr("The following mods were blocked on third party launchers.<br/>"
                                                       "You will need to manually download them and add them to the modpack"),
-                                                   text,
-                                                   urls);
+                                                   blocked_mods);
         message_dialog->setModal(true);
 
         if (message_dialog->exec()) {
+            qDebug() << "Post dialog blocked mods list: " << blocked_mods;
+            copyBlockedMods(blocked_mods);
             setupDownloadJob(loop);
         } else {
             m_mod_id_resolver.reset();
@@ -404,6 +412,38 @@ void FlameCreationTask::idResolverSucceeded(QEventLoop& loop)
     }
 }
 
+/// @brief copy the matched blocked mods to the instance staging area
+/// @param blocked_mods list of the blocked mods and their matched paths
+void FlameCreationTask::copyBlockedMods(QList<BlockedMod> const& blocked_mods)
+{
+    setStatus(tr("Copying Blocked Mods..."));
+    setAbortable(false);
+    int i = 0;
+    int total = blocked_mods.length();
+    setProgress(i, total);
+    for (auto const& mod : blocked_mods) {
+        if (!mod.matched) {
+            qDebug() << mod.name << "was not matched to a local file, skipping copy";
+            continue;
+        }
+
+        auto dest_path = FS::PathCombine(m_stagingPath, "minecraft", "mods", mod.name);
+
+        setStatus(tr("Copying Blocked Mods (%1 out of %2 are done)").arg(QString::number(i), QString::number(total)));
+
+        qDebug() << "Will try to copy" << mod.localPath << "to" << dest_path;
+
+        if (!FS::copy(mod.localPath, dest_path)()) {
+            qDebug() << "Copy of" << mod.localPath << "to" << dest_path << "Failed";
+        }
+
+        i++;
+        setProgress(i, total);
+    }
+
+    setAbortable(true);
+}
+
 void FlameCreationTask::setupDownloadJob(QEventLoop& loop)
 {
     m_files_job = new NetJob(tr("Mod download"), APPLICATION->network());
@@ -449,7 +489,7 @@ void FlameCreationTask::setupDownloadJob(QEventLoop& loop)
         m_files_job.reset();
         setError(reason);
     });
-    connect(m_files_job.get(), &NetJob::progress, [&](qint64 current, qint64 total) { setProgress(current, total); });
+    connect(m_files_job.get(), &NetJob::progress, this, &FlameCreationTask::setProgress);
     connect(m_files_job.get(), &NetJob::finished, &loop, &QEventLoop::quit);
 
     setStatus(tr("Downloading mods..."));

launcher/modplatform/flame/FlameInstanceCreationTask.h

@@ -10,6 +10,8 @@
 
 #include "net/NetJob.h"
 
+#include "ui/dialogs/BlockedModsDialog.h"
+
 class FlameCreationTask final : public InstanceCreationTask {
     Q_OBJECT
 
@@ -29,6 +31,7 @@ class FlameCreationTask final : public InstanceCreationTask {
    private slots:
     void idResolverSucceeded(QEventLoop&);
     void setupDownloadJob(QEventLoop&);
+    void copyBlockedMods(QList<BlockedMod> const& blocked_mods);
 
    private:
     QWidget* m_parent = nullptr;

launcher/modplatform/helpers/HashUtils.cpp

@@ -36,6 +36,18 @@ Hasher::Ptr createFlameHasher(QString file_path)
     return new FlameHasher(file_path);
 }
 
+Hasher::Ptr createBlockedModHasher(QString file_path, ModPlatform::Provider provider)
+{
+    return new BlockedModHasher(file_path, provider);
+}
+
+Hasher::Ptr createBlockedModHasher(QString file_path, ModPlatform::Provider provider, QString type)
+{
+    auto hasher = new BlockedModHasher(file_path, provider);
+    hasher->useHashType(type);
+    return hasher;
+}
+
 void ModrinthHasher::executeTask()
 {
     QFile file(m_path);
@@ -79,4 +91,50 @@ void FlameHasher::executeTask()
     }
 }
 
+
+BlockedModHasher::BlockedModHasher(QString file_path, ModPlatform::Provider provider) 
+    : Hasher(file_path), provider(provider) { 
+    setObjectName(QString("BlockedModHasher: %1").arg(file_path)); 
+    hash_type = ProviderCaps.hashType(provider).first();
+}
+
+void BlockedModHasher::executeTask()
+{
+    QFile file(m_path);
+
+    try {
+        file.open(QFile::ReadOnly);
+    } catch (FS::FileSystemException& e) {
+        qCritical() << QString("Failed to open JAR file in %1").arg(m_path);
+        qCritical() << QString("Reason: ") << e.cause();
+
+        emitFailed("Failed to open file for hashing.");
+        return;
+    }
+
+    m_hash = ProviderCaps.hash(provider, &file, hash_type);
+
+    file.close();
+
+    if (m_hash.isEmpty()) {
+        emitFailed("Empty hash!");
+    } else {
+        emitSucceeded();
+    }
+}
+
+QStringList BlockedModHasher::getHashTypes() {
+    return ProviderCaps.hashType(provider);
+}
+
+bool BlockedModHasher::useHashType(QString type) {
+    auto types = ProviderCaps.hashType(provider);
+    if (types.contains(type)) {
+        hash_type = type;
+        return true;
+    }
+    qDebug() << "Bad hash type " << type << " for provider";
+    return false;
+}
+
 }  // namespace Hashing

launcher/modplatform/helpers/HashUtils.h

@@ -40,8 +40,23 @@ class ModrinthHasher : public Hasher {
     void executeTask() override;
 };
 
+class BlockedModHasher : public Hasher {
+   public:
+    BlockedModHasher(QString file_path, ModPlatform::Provider provider);
+
+    void executeTask() override;
+
+    QStringList getHashTypes();
+    bool useHashType(QString type);
+   private:
+    ModPlatform::Provider provider;
+    QString hash_type;
+};
+
 Hasher::Ptr createHasher(QString file_path, ModPlatform::Provider provider);
 Hasher::Ptr createFlameHasher(QString file_path);
 Hasher::Ptr createModrinthHasher(QString file_path);
+Hasher::Ptr createBlockedModHasher(QString file_path, ModPlatform::Provider provider);
+Hasher::Ptr createBlockedModHasher(QString file_path, ModPlatform::Provider provider, QString type);
 
 }  // namespace Hashing

launcher/modplatform/modpacksch/FTBPackInstallTask.cpp

@@ -176,8 +176,6 @@ void PackInstallTask::resolveMods()
 
 void PackInstallTask::onResolveModsSucceeded()
 {
-    QString text;
-    QList<QUrl> urls;
     auto anyBlocked = false;
 
     Flame::Manifest results = m_mod_id_resolver_task->getResults();
@@ -191,11 +189,16 @@ void PackInstallTask::onResolveModsSucceeded()
 
         // First check for blocked mods
         if (!results_file.resolved || results_file.url.isEmpty()) {
-            QString type(local_file.type);
 
-            type[0] = type[0].toUpper();
-            text += QString("%1: %2 - <a href='%3'>%3</a><br/>").arg(type, local_file.name, results_file.websiteUrl);
-            urls.append(QUrl(results_file.websiteUrl));
+            BlockedMod blocked_mod;
+            blocked_mod.name = local_file.name;
+            blocked_mod.websiteUrl = results_file.websiteUrl;
+            blocked_mod.hash = results_file.hash;
+            blocked_mod.matched = false;
+            blocked_mod.localPath = "";
+
+            m_blocked_mods.append(blocked_mod);
+
             anyBlocked = true;
         } else {
             local_file.url = results_file.url.toString();
@@ -210,13 +213,16 @@ void PackInstallTask::onResolveModsSucceeded()
         auto message_dialog = new BlockedModsDialog(m_parent, tr("Blocked files found"),
                                                    tr("The following files are not available for download in third party launchers.<br/>"
                                                       "You will need to manually download them and add them to the instance."),
-                                                   text,
-                                                   urls);
+                                                   m_blocked_mods);
 
-        if (message_dialog->exec() == QDialog::Accepted)
+        if (message_dialog->exec() == QDialog::Accepted) {
+            qDebug() << "Post dialog blocked mods list: " << m_blocked_mods;
             createInstance();
-        else
+        }  
+        else {
             abort();
+        }
+            
     } else {
         createInstance();
     }
@@ -320,6 +326,9 @@ void PackInstallTask::downloadPack()
 void PackInstallTask::onModDownloadSucceeded()
 {
     m_net_job.reset();
+    if (!m_blocked_mods.isEmpty()) {
+        copyBlockedMods();
+    }
     emitSucceeded();
 }
 
@@ -343,4 +352,35 @@ void PackInstallTask::onModDownloadFailed(QString reason)
     emitFailed(reason);
 }
 
+/// @brief copy the matched blocked mods to the instance staging area
+void PackInstallTask::copyBlockedMods()
+{
+    setStatus(tr("Copying Blocked Mods..."));
+    setAbortable(false);
+    int i = 0;
+    int total = m_blocked_mods.length();
+    setProgress(i, total);
+    for (auto const& mod : m_blocked_mods) {
+        if (!mod.matched) {
+            qDebug() << mod.name << "was not matched to a local file, skipping copy";
+            continue;
+        }
+
+        auto dest_path = FS::PathCombine(m_stagingPath, ".minecraft", "mods", mod.name);
+
+        setStatus(tr("Copying Blocked Mods (%1 out of %2 are done)").arg(QString::number(i), QString::number(total)));
+
+        qDebug() << "Will try to copy" << mod.localPath << "to" << dest_path;
+
+        if (!FS::copy(mod.localPath, dest_path)()) {
+            qDebug() << "Copy of" << mod.localPath << "to" << dest_path << "Failed";
+        }
+
+        i++;
+        setProgress(i, total);
+    }
+
+    setAbortable(true);
+}
+
 }  // namespace ModpacksCH

launcher/modplatform/modpacksch/FTBPackInstallTask.h

@@ -43,6 +43,7 @@
 #include "QObjectPtr.h"
 #include "modplatform/flame/FileResolvingTask.h"
 #include "net/NetJob.h"
+#include "ui/dialogs/BlockedModsDialog.h"
 
 #include <QWidget>
 
@@ -76,6 +77,7 @@ private:
     void resolveMods();
     void createInstance();
     void downloadPack();
+    void copyBlockedMods();
 
 private:
     NetJob::Ptr m_net_job = nullptr;
@@ -90,6 +92,7 @@ private:
     Version m_version;
 
     QMap<QString, QString> m_files_to_copy;
+    QList<BlockedMod> m_blocked_mods;
 
     //FIXME: nuke
     QWidget* m_parent;

launcher/net/HttpMetaCache.cpp

@@ -47,7 +47,7 @@
 auto MetaEntry::getFullPath() -> QString
 {
     // FIXME: make local?
-    return FS::PathCombine(basePath, relativePath);
+    return FS::PathCombine(m_basePath, m_relativePath);
 }
 
 HttpMetaCache::HttpMetaCache(QString path) : QObject(), m_index_file(path)
@@ -99,7 +99,7 @@ auto HttpMetaCache::resolveEntry(QString base, QString resource_path, QString ex
         return staleEntry(base, resource_path);
     }
 
-    if (!expected_etag.isEmpty() && expected_etag != entry->etag) {
+    if (!expected_etag.isEmpty() && expected_etag != entry->m_etag) {
         // if the etag doesn't match expected, we disown the entry
         selected_base.entry_list.remove(resource_path);
         return staleEntry(base, resource_path);
@@ -107,17 +107,17 @@ auto HttpMetaCache::resolveEntry(QString base, QString resource_path, QString ex
 
     // if the file changed, check md5sum
     qint64 file_last_changed = finfo.lastModified().toUTC().toMSecsSinceEpoch();
-    if (file_last_changed != entry->local_changed_timestamp) {
+    if (file_last_changed != entry->m_local_changed_timestamp) {
         QFile input(real_path);
         input.open(QIODevice::ReadOnly);
         QString md5sum = QCryptographicHash::hash(input.readAll(), QCryptographicHash::Md5).toHex().constData();
-        if (entry->md5sum != md5sum) {
+        if (entry->m_md5sum != md5sum) {
             selected_base.entry_list.remove(resource_path);
             return staleEntry(base, resource_path);
         }
 
         // md5sums matched... keep entry and save the new state to file
-        entry->local_changed_timestamp = file_last_changed;
+        entry->m_local_changed_timestamp = file_last_changed;
         SaveEventually();
     }
 
@@ -130,23 +130,23 @@ auto HttpMetaCache::resolveEntry(QString base, QString resource_path, QString ex
     }
 
     // entry passed all the checks we cared about.
-    entry->basePath = getBasePath(base);
+    entry->m_basePath = getBasePath(base);
     return entry;
 }
 
 auto HttpMetaCache::updateEntry(MetaEntryPtr stale_entry) -> bool
 {
-    if (!m_entries.contains(stale_entry->baseId)) {
-        qCritical() << "Cannot add entry with unknown base: " << stale_entry->baseId.toLocal8Bit();
+    if (!m_entries.contains(stale_entry->m_baseId)) {
+        qCritical() << "Cannot add entry with unknown base: " << stale_entry->m_baseId.toLocal8Bit();
         return false;
     }
 
-    if (stale_entry->stale) {
+    if (stale_entry->m_stale) {
         qCritical() << "Cannot add stale entry: " << stale_entry->getFullPath().toLocal8Bit();
         return false;
     }
 
-    m_entries[stale_entry->baseId].entry_list[stale_entry->relativePath] = stale_entry;
+    m_entries[stale_entry->m_baseId].entry_list[stale_entry->m_relativePath] = stale_entry;
     SaveEventually();
 
     return true;
@@ -157,7 +157,7 @@ auto HttpMetaCache::evictEntry(MetaEntryPtr entry) -> bool
     if (!entry)
         return false;
 
-    entry->stale = true;
+    entry->m_stale = true;
     SaveEventually();
     return true;
 }
@@ -169,7 +169,7 @@ void HttpMetaCache::evictAll()
         qDebug() << "Evicting base" << base;
         for (MetaEntryPtr entry : map.entry_list) {
             if (!evictEntry(entry))
-                qWarning() << "Unexpected missing cache entry" << entry->basePath;
+                qWarning() << "Unexpected missing cache entry" << entry->m_basePath;
         }
     }
 }
@@ -177,10 +177,10 @@ void HttpMetaCache::evictAll()
 auto HttpMetaCache::staleEntry(QString base, QString resource_path) -> MetaEntryPtr
 {
     auto foo = new MetaEntry();
-    foo->baseId = base;
-    foo->basePath = getBasePath(base);
-    foo->relativePath = resource_path;
-    foo->stale = true;
+    foo->m_baseId = base;
+    foo->m_basePath = getBasePath(base);
+    foo->m_relativePath = resource_path;
+    foo->m_stale = true;
 
     return MetaEntryPtr(foo);
 }
@@ -235,23 +235,23 @@ void HttpMetaCache::Load()
         auto& entrymap = m_entries[base];
 
         auto foo = new MetaEntry();
-        foo->baseId = base;
-        foo->relativePath = Json::ensureString(element_obj, "path");
-        foo->md5sum = Json::ensureString(element_obj, "md5sum");
-        foo->etag = Json::ensureString(element_obj, "etag");
-        foo->local_changed_timestamp = Json::ensureDouble(element_obj, "last_changed_timestamp");
-        foo->remote_changed_timestamp = Json::ensureString(element_obj, "remote_changed_timestamp");
+        foo->m_baseId = base;
+        foo->m_relativePath = Json::ensureString(element_obj, "path");
+        foo->m_md5sum = Json::ensureString(element_obj, "md5sum");
+        foo->m_etag = Json::ensureString(element_obj, "etag");
+        foo->m_local_changed_timestamp = Json::ensureDouble(element_obj, "last_changed_timestamp");
+        foo->m_remote_changed_timestamp = Json::ensureString(element_obj, "remote_changed_timestamp");
 
         foo->makeEternal(Json::ensureBoolean(element_obj, (const QString)QStringLiteral("eternal"), false));
         if (!foo->isEternal()) {
-            foo->current_age = Json::ensureDouble(element_obj, "current_age");
-            foo->max_age = Json::ensureDouble(element_obj, "max_age");
+            foo->m_current_age = Json::ensureDouble(element_obj, "current_age");
+            foo->m_max_age = Json::ensureDouble(element_obj, "max_age");
         }
 
         // presumed innocent until closer examination
-        foo->stale = false;
+        foo->m_stale = false;
 
-        entrymap.entry_list[foo->relativePath] = MetaEntryPtr(foo);
+        entrymap.entry_list[foo->m_relativePath] = MetaEntryPtr(foo);
     }
 }
 
@@ -276,23 +276,23 @@ void HttpMetaCache::SaveNow()
     for (auto group : m_entries) {
         for (auto entry : group.entry_list) {
             // do not save stale entries. they are dead.
-            if (entry->stale) {
+            if (entry->m_stale) {
                 continue;
             }
 
             QJsonObject entryObj;
-            Json::writeString(entryObj, "base", entry->baseId);
-            Json::writeString(entryObj, "path", entry->relativePath);
-            Json::writeString(entryObj, "md5sum", entry->md5sum);
-            Json::writeString(entryObj, "etag", entry->etag);
-            entryObj.insert("last_changed_timestamp", QJsonValue(double(entry->local_changed_timestamp)));
-            if (!entry->remote_changed_timestamp.isEmpty())
-                entryObj.insert("remote_changed_timestamp", QJsonValue(entry->remote_changed_timestamp));
+            Json::writeString(entryObj, "base", entry->m_baseId);
+            Json::writeString(entryObj, "path", entry->m_relativePath);
+            Json::writeString(entryObj, "md5sum", entry->m_md5sum);
+            Json::writeString(entryObj, "etag", entry->m_etag);
+            entryObj.insert("last_changed_timestamp", QJsonValue(double(entry->m_local_changed_timestamp)));
+            if (!entry->m_remote_changed_timestamp.isEmpty())
+                entryObj.insert("remote_changed_timestamp", QJsonValue(entry->m_remote_changed_timestamp));
             if (entry->isEternal()) {
                 entryObj.insert("eternal", true);
             } else {
-                entryObj.insert("current_age", QJsonValue(double(entry->current_age)));
-                entryObj.insert("max_age", QJsonValue(double(entry->max_age)));
+                entryObj.insert("current_age", QJsonValue(double(entry->m_current_age)));
+                entryObj.insert("max_age", QJsonValue(double(entry->m_max_age)));
             }
             entriesArr.append(entryObj);
         }

launcher/net/HttpMetaCache.h

@@ -49,47 +49,47 @@ class MetaEntry {
     MetaEntry() = default;
 
    public:
-    auto isStale() -> bool { return stale; }
-    void setStale(bool stale) { this->stale = stale; }
+    auto isStale() -> bool { return m_stale; }
+    void setStale(bool stale) { m_stale = stale; }
 
     auto getFullPath() -> QString;
 
-    auto getRemoteChangedTimestamp() -> QString { return remote_changed_timestamp; }
-    void setRemoteChangedTimestamp(QString remote_changed_timestamp) { this->remote_changed_timestamp = remote_changed_timestamp; }
-    void setLocalChangedTimestamp(qint64 timestamp) { local_changed_timestamp = timestamp; }
+    auto getRemoteChangedTimestamp() -> QString { return m_remote_changed_timestamp; }
+    void setRemoteChangedTimestamp(QString remote_changed_timestamp) { m_remote_changed_timestamp = remote_changed_timestamp; }
+    void setLocalChangedTimestamp(qint64 timestamp) { m_local_changed_timestamp = timestamp; }
 
-    auto getETag() -> QString { return etag; }
-    void setETag(QString etag) { this->etag = etag; }
+    auto getETag() -> QString { return m_etag; }
+    void setETag(QString etag) { m_etag = etag; }
 
-    auto getMD5Sum() -> QString { return md5sum; }
-    void setMD5Sum(QString md5sum) { this->md5sum = md5sum; }
+    auto getMD5Sum() -> QString { return m_md5sum; }
+    void setMD5Sum(QString md5sum) { m_md5sum = md5sum; }
 
     /* Whether the entry expires after some time (false) or not (true). */
-    void makeEternal(bool eternal) { is_eternal = eternal; }
-    [[nodiscard]] bool isEternal() const { return is_eternal; }
+    void makeEternal(bool eternal) { m_is_eternal = eternal; }
+    [[nodiscard]] bool isEternal() const { return m_is_eternal; }
 
-    auto getCurrentAge() -> qint64 { return current_age; }
-    void setCurrentAge(qint64 age) { current_age = age; }
+    auto getCurrentAge() -> qint64 { return m_current_age; }
+    void setCurrentAge(qint64 age) { m_current_age = age; }
 
-    auto getMaximumAge() -> qint64 { return max_age; }
-    void setMaximumAge(qint64 age) { max_age = age; }
+    auto getMaximumAge() -> qint64 { return m_max_age; }
+    void setMaximumAge(qint64 age) { m_max_age = age; }
 
-    bool isExpired(qint64 offset) { return !is_eternal && (current_age >= max_age - offset); };
+    bool isExpired(qint64 offset) { return !m_is_eternal && (m_current_age >= m_max_age - offset); };
 
    protected:
-    QString baseId;
-    QString basePath;
-    QString relativePath;
-    QString md5sum;
-    QString etag;
+    QString m_baseId;
+    QString m_basePath;
+    QString m_relativePath;
+    QString m_md5sum;
+    QString m_etag;
 
-    qint64 local_changed_timestamp = 0;
-    QString remote_changed_timestamp;  // QString for now, RFC 2822 encoded time
-    qint64 current_age = 0;
-    qint64 max_age = 0;
-    bool is_eternal = false;
+    qint64 m_local_changed_timestamp = 0;
+    QString m_remote_changed_timestamp;  // QString for now, RFC 2822 encoded time
+    qint64 m_current_age = 0;
+    qint64 m_max_age = 0;
+    bool m_is_eternal = false;
 
-    bool stale = true;
+    bool m_stale = true;
 };
 
 using MetaEntryPtr = std::shared_ptr<MetaEntry>;

launcher/ui/MainWindow.cpp

@@ -61,6 +61,7 @@
 #include <QMenu>
 #include <QMenuBar>
 #include <QMessageBox>
+#include <QFileDialog>
 #include <QInputDialog>
 #include <QLabel>
 #include <QToolButton>
@@ -253,6 +254,9 @@ public:
     QMenu * helpMenu = nullptr;
     TranslatedToolButton helpMenuButton;
     TranslatedAction actionClearMetadata;
+    #ifdef Q_OS_MAC
+    TranslatedAction actionAddToPATH;
+    #endif
     TranslatedAction actionReportBug;
     TranslatedAction actionDISCORD;
     TranslatedAction actionMATRIX;
@@ -350,6 +354,14 @@ public:
         actionClearMetadata.setTooltipId(QT_TRANSLATE_NOOP("MainWindow", "Clear cached metadata"));
         all_actions.append(&actionClearMetadata);
 
+        #ifdef Q_OS_MAC
+        actionAddToPATH = TranslatedAction(MainWindow);
+        actionAddToPATH->setObjectName(QStringLiteral("actionAddToPATH"));
+        actionAddToPATH.setTextId(QT_TRANSLATE_NOOP("MainWindow", "Install to &PATH"));
+        actionAddToPATH.setTooltipId(QT_TRANSLATE_NOOP("MainWindow", "Install a prismlauncher symlink to /usr/local/bin"));
+        all_actions.append(&actionAddToPATH);
+        #endif
+
         if (!BuildConfig.BUG_TRACKER_URL.isEmpty()) {
             actionReportBug = TranslatedAction(MainWindow);
             actionReportBug->setObjectName(QStringLiteral("actionReportBug"));
@@ -455,6 +467,10 @@ public:
 
         helpMenu->addAction(actionClearMetadata);
 
+        #ifdef Q_OS_MAC
+        helpMenu->addAction(actionAddToPATH);
+        #endif
+
         if (!BuildConfig.BUG_TRACKER_URL.isEmpty()) {
             helpMenu->addAction(actionReportBug);
         }
@@ -542,6 +558,9 @@ public:
         helpMenu = menuBar->addMenu(tr("&Help"));
         helpMenu->setSeparatorsCollapsible(false);
         helpMenu->addAction(actionClearMetadata);
+        #ifdef Q_OS_MAC
+        helpMenu->addAction(actionAddToPATH);
+        #endif
         helpMenu->addSeparator();
         helpMenu->addAction(actionAbout);
         helpMenu->addAction(actionOpenWiki);
@@ -1929,6 +1948,29 @@ void MainWindow::on_actionClearMetadata_triggered()
     APPLICATION->metacache()->SaveNow();
 }
 
+#ifdef Q_OS_MAC
+void MainWindow::on_actionAddToPATH_triggered()
+{
+    auto binaryPath = APPLICATION->applicationFilePath();
+    auto targetPath = QString("/usr/local/bin/%1").arg(BuildConfig.LAUNCHER_APP_BINARY_NAME);
+    qDebug() << "Symlinking" << binaryPath << "to" << targetPath;
+
+    QStringList args;
+    args << "-e";
+    args << QString("do shell script \"mkdir -p /usr/local/bin && ln -sf '%1' '%2'\" with administrator privileges")
+                .arg(binaryPath, targetPath);
+    auto outcome = QProcess::execute("/usr/bin/osascript", args);
+    if (!outcome) {
+        QMessageBox::information(this, tr("Successfully added %1 to PATH").arg(BuildConfig.LAUNCHER_DISPLAYNAME),
+                                 tr("%1 was successfully added to your PATH. You can now start it by running `%2`.")
+                                     .arg(BuildConfig.LAUNCHER_DISPLAYNAME, BuildConfig.LAUNCHER_APP_BINARY_NAME));
+    } else {
+        QMessageBox::critical(this, tr("Failed to add %1 to PATH").arg(BuildConfig.LAUNCHER_DISPLAYNAME),
+                              tr("An error occurred while trying to add %1 to PATH").arg(BuildConfig.LAUNCHER_DISPLAYNAME));
+    }
+}
+#endif
+
 void MainWindow::on_actionOpenWiki_triggered()
 {
     DesktopServices::openUrl(QUrl(BuildConfig.HELP_URL.arg("")));

launcher/ui/MainWindow.h

@@ -128,6 +128,10 @@ private slots:
 
     void on_actionClearMetadata_triggered();
 
+    #ifdef Q_OS_MAC
+    void on_actionAddToPATH_triggered();
+    #endif
+
     void on_actionOpenWiki_triggered();
 
     void on_actionMoreNews_triggered();

launcher/ui/dialogs/BlockedModsDialog.cpp

@@ -1,28 +1,186 @@
 #include "BlockedModsDialog.h"
-#include "ui_BlockedModsDialog.h"
-#include <QPushButton>
-#include <QDialogButtonBox>
 #include <QDesktopServices>
+#include <QDialogButtonBox>
+#include <QPushButton>
+#include "Application.h"
+#include "ui_BlockedModsDialog.h"
 
+#include <QDebug>
+#include <QStandardPaths>
 
-BlockedModsDialog::BlockedModsDialog(QWidget *parent, const QString &title, const QString &text, const QString &body, const QList<QUrl> &urls) :
-        QDialog(parent), ui(new Ui::BlockedModsDialog), urls(urls) {
+BlockedModsDialog::BlockedModsDialog(QWidget* parent, const QString& title, const QString& text, QList<BlockedMod>& mods)
+    : QDialog(parent), ui(new Ui::BlockedModsDialog), mods(mods)
+{
     ui->setupUi(this);
 
     auto openAllButton = ui->buttonBox->addButton(tr("Open All"), QDialogButtonBox::ActionRole);
     connect(openAllButton, &QPushButton::clicked, this, &BlockedModsDialog::openAll);
 
+    connect(&watcher, &QFileSystemWatcher::directoryChanged, this, &BlockedModsDialog::directoryChanged);
+
+    hashing_task = shared_qobject_ptr<ConcurrentTask>(new ConcurrentTask(this, "MakeHashesTask", 10));
+
+    qDebug() << "Mods List: " << mods;
+
+    setupWatch();
+    scanPaths();
+
     this->setWindowTitle(title);
     ui->label->setText(text);
-    ui->textBrowser->setText(body);
+    ui->labelModsFound->setText(tr("Please download the missing mods."));
+    update();
 }
 
-BlockedModsDialog::~BlockedModsDialog() {
+BlockedModsDialog::~BlockedModsDialog()
+{
     delete ui;
 }
 
-void BlockedModsDialog::openAll() {
-    for(auto &url : urls) {
-        QDesktopServices::openUrl(url);
+void BlockedModsDialog::openAll()
+{
+    for (auto& mod : mods) {
+        QDesktopServices::openUrl(mod.websiteUrl);
     }
 }
+
+/// @brief update UI with current status of the blocked mod detection
+void BlockedModsDialog::update()
+{
+    QString text;
+    QString span;
+
+    for (auto& mod : mods) {
+        if (mod.matched) {
+            // &#x2714; -> html for HEAVY CHECK MARK : ✔
+            span = QString(tr("<span style=\"color:green\"> &#x2714; Found at %1 </span>")).arg(mod.localPath);
+        } else {
+            // &#x2718; -> html for HEAVY BALLOT X : ✘
+            span = QString(tr("<span style=\"color:red\"> &#x2718; Not Found </span>"));
+        }
+        text += QString(tr("%1: <a href='%2'>%2</a> <p>Hash: %3 %4</p> <br/>")).arg(mod.name, mod.websiteUrl, mod.hash, span);
+    }
+
+    ui->textBrowser->setText(text);
+
+    if (allModsMatched()) {
+        ui->labelModsFound->setText(tr("All mods found ✔"));
+    } else {
+        ui->labelModsFound->setText(tr("Please download the missing mods."));
+    }
+}
+
+/// @brief Signal fired when a watched direcotry has changed
+/// @param path the path to the changed directory
+void BlockedModsDialog::directoryChanged(QString path)
+{
+    qDebug() << "Directory changed: " << path;
+    scanPath(path);
+}
+
+/// @brief add the user downloads folder and the global mods folder to the filesystem watcher
+void BlockedModsDialog::setupWatch()
+{
+    const QString downloadsFolder = QStandardPaths::writableLocation(QStandardPaths::DownloadLocation);
+    const QString modsFolder = APPLICATION->settings()->get("CentralModsDir").toString();
+    watcher.addPath(downloadsFolder);
+    watcher.addPath(modsFolder);
+}
+
+/// @brief scan all watched folder
+void BlockedModsDialog::scanPaths()
+{
+    for (auto& dir : watcher.directories()) {
+        scanPath(dir);
+    }
+}
+
+/// @brief Scan the directory at path, skip paths that do not contain a file name
+///        of a blocked mod we are looking for
+/// @param path the directory to scan
+void BlockedModsDialog::scanPath(QString path)
+{
+    QDir scan_dir(path);
+    QDirIterator scan_it(path, QDir::Filter::Files | QDir::Filter::Hidden, QDirIterator::NoIteratorFlags);
+    while (scan_it.hasNext()) {
+        QString file = scan_it.next();
+
+        if (!checkValidPath(file)) {
+            continue;
+        }
+
+        auto hash_task = Hashing::createBlockedModHasher(file, ModPlatform::Provider::FLAME, "sha1");
+
+        qDebug() << "Creating Hash task for path: " << file;
+
+        connect(hash_task.get(), &Task::succeeded, [this, hash_task, file] { checkMatchHash(hash_task->getResult(), file); });
+        connect(hash_task.get(), &Task::failed, [file] { qDebug() << "Failed to hash path: " << file; });
+
+        hashing_task->addTask(hash_task);
+    }
+
+    hashing_task->start();
+}
+
+/// @brief check if the computed hash for the provided path matches a blocked
+///        mod we are looking for
+/// @param hash the computed hash for the provided path
+/// @param path the path to the local file being compared
+void BlockedModsDialog::checkMatchHash(QString hash, QString path)
+{
+    bool match = false;
+
+    qDebug() << "Checking for match on hash: " << hash << "| From path:" << path;
+
+    for (auto& mod : mods) {
+        if (mod.matched) {
+            continue;
+        }
+        if (mod.hash.compare(hash, Qt::CaseInsensitive) == 0) {
+            mod.matched = true;
+            mod.localPath = path;
+            match = true;
+
+            qDebug() << "Hash match found:" << mod.name << hash << "| From path:" << path;
+
+            break;
+        }
+    }
+
+    if (match) {
+        update();
+    }
+}
+
+/// @brief Check if the name of the file at path matches the name of a blocked mod we are searching for
+/// @param path the path to check
+/// @return boolean: did the path match the name of a blocked mod?
+bool BlockedModsDialog::checkValidPath(QString path)
+{
+    QFileInfo file = QFileInfo(path);
+    QString filename = file.fileName();
+
+    for (auto& mod : mods) {
+        if (mod.name.compare(filename, Qt::CaseInsensitive) == 0) {
+            qDebug() << "Name match found:" << mod.name << "| From path:" << path;
+            return true;
+        }
+    }
+
+    return false;
+}
+
+bool BlockedModsDialog::allModsMatched()
+{
+    return std::all_of(mods.begin(), mods.end(), [](auto const& mod) { return mod.matched; });
+}
+
+/// qDebug print support for the BlockedMod struct
+QDebug operator<<(QDebug debug, const BlockedMod& m)
+{
+    QDebugStateSaver saver(debug);
+
+    debug.nospace() << "{ name: " << m.name << ", websiteUrl: " << m.websiteUrl << ", hash: " << m.hash << ", matched: " << m.matched
+                    << ", localPath: " << m.localPath << "}";
+
+    return debug;
+}

launcher/ui/dialogs/BlockedModsDialog.h

@@ -1,7 +1,23 @@
 #pragma once
 
 #include <QDialog>
+#include <QString>
+#include <QList>
 
+#include <QFileSystemWatcher>
+
+#include "modplatform/helpers/HashUtils.h"
+
+#include "tasks/ConcurrentTask.h"
+
+struct BlockedMod {
+    QString name;
+    QString websiteUrl;
+    QString hash;
+    bool matched;
+    QString localPath;
+
+};
 
 QT_BEGIN_NAMESPACE
 namespace Ui { class BlockedModsDialog; }
@@ -11,12 +27,27 @@ class BlockedModsDialog : public QDialog {
 Q_OBJECT
 
 public:
-    BlockedModsDialog(QWidget *parent, const QString &title, const QString &text, const QString &body, const QList<QUrl> &urls);
+    BlockedModsDialog(QWidget *parent, const QString &title, const QString &text, QList<BlockedMod> &mods);
 
     ~BlockedModsDialog() override;
 
+
 private:
     Ui::BlockedModsDialog *ui;
-    const QList<QUrl> &urls;
+    QList<BlockedMod> &mods;
+    QFileSystemWatcher watcher;
+    shared_qobject_ptr<ConcurrentTask> hashing_task;
+
     void openAll();
+    void update();
+    void directoryChanged(QString path);
+    void setupWatch();
+    void scanPaths();
+    void scanPath(QString path);
+    void checkMatchHash(QString hash, QString path);
+
+    bool checkValidPath(QString path);
+    bool allModsMatched();
 };
+
+QDebug operator<<(QDebug debug, const BlockedMod &m);

launcher/ui/dialogs/BlockedModsDialog.ui

@@ -13,8 +13,8 @@
   <property name="windowTitle">
    <string notr="true">BlockedModsDialog</string>
   </property>
-  <layout class="QGridLayout" name="gridLayout">
-   <item row="0" column="0">
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
     <widget class="QLabel" name="label">
      <property name="text">
       <string notr="true"/>
@@ -24,17 +24,7 @@
      </property>
     </widget>
    </item>
-   <item row="2" column="0">
-    <widget class="QDialogButtonBox" name="buttonBox">
-     <property name="orientation">
-      <enum>Qt::Horizontal</enum>
-     </property>
-     <property name="standardButtons">
-      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
-     </property>
-    </widget>
-   </item>
-   <item row="1" column="0">
+   <item>
     <widget class="QTextBrowser" name="textBrowser">
      <property name="acceptRichText">
       <bool>true</bool>
@@ -44,6 +34,27 @@
      </property>
     </widget>
    </item>
+   <item>
+    <layout class="QHBoxLayout" name="bottomBoxH">
+     <item>
+      <widget class="QLabel" name="labelModsFound">
+       <property name="text">
+        <string/>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QDialogButtonBox" name="buttonBox">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="standardButtons">
+        <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
   </layout>
  </widget>
  <resources/>

launcher/ui/pages/instance/ExternalResourcesPage.ui

@@ -27,11 +27,7 @@
     <item row="4" column="1" colspan="3">
      <layout class="QGridLayout" name="gridLayout_2">
       <item row="0" column="1">
-       <widget class="QLineEdit" name="filterEdit">
-        <property name="clearButtonEnabled">
-         <bool>true</bool>
-        </property>
-       </widget>
+       <widget class="QLineEdit" name="filterEdit"/>
       </item>
       <item row="0" column="0">
        <widget class="QLabel" name="filterLabel">

launcher/ui/pages/instance/ServersPage.cpp

@@ -400,11 +400,11 @@ public:
 
     virtual int rowCount(const QModelIndex &parent = QModelIndex()) const override
     {
-        return m_servers.size();
+        return parent.isValid() ? 0 : m_servers.size();
     }
     int columnCount(const QModelIndex & parent) const override
     {
-        return COLUMN_COUNT;
+        return parent.isValid() ? 0 : COLUMN_COUNT;
     }
 
     Server * at(int index)

launcher/ui/pages/instance/VersionPage.ui

@@ -48,11 +48,7 @@
       <item>
        <layout class="QGridLayout" name="gridLayout_2">
         <item row="0" column="1">
-         <widget class="QLineEdit" name="filterEdit">
-          <property name="clearButtonEnabled">
-           <bool>true</bool>
-          </property>
-         </widget>
+         <widget class="QLineEdit" name="filterEdit"/>
         </item>
         <item row="0" column="0">
          <widget class="QLabel" name="filterLabel">

launcher/ui/pages/modplatform/ModModel.h

@@ -20,8 +20,8 @@ class ListModel : public QAbstractListModel {
     ListModel(ModPage* parent);
     ~ListModel() override;
 
-    inline auto rowCount(const QModelIndex& parent) const -> int override { return modpacks.size(); };
-    inline auto columnCount(const QModelIndex& parent) const -> int override { return 1; };
+    inline auto rowCount(const QModelIndex& parent) const -> int override { return parent.isValid() ? 0 : modpacks.size(); };
+    inline auto columnCount(const QModelIndex& parent) const -> int override { return parent.isValid() ? 0 : 1; };
     inline auto flags(const QModelIndex& index) const -> Qt::ItemFlags override { return QAbstractListModel::flags(index); };
 
     auto debugName() const -> QString;
@@ -41,12 +41,12 @@ class ListModel : public QAbstractListModel {
     void requestModVersions(const ModPlatform::IndexedPack& current, QModelIndex index);
 
     virtual void loadIndexedPack(ModPlatform::IndexedPack& m, QJsonObject& obj) = 0;
-    virtual void loadExtraPackInfo(ModPlatform::IndexedPack& m, QJsonObject& obj) {};
+    virtual void loadExtraPackInfo(ModPlatform::IndexedPack& m, QJsonObject& obj) = 0;
     virtual void loadIndexedPackVersions(ModPlatform::IndexedPack& m, QJsonArray& arr) = 0;
 
     void getLogo(const QString& logo, const QString& logoUrl, LogoCallback callback);
 
-    inline auto canFetchMore(const QModelIndex& parent) const -> bool override { return searchState == CanPossiblyFetchMore; };
+    inline auto canFetchMore(const QModelIndex& parent) const -> bool override { return parent.isValid() ? false : searchState == CanPossiblyFetchMore; };
 
    public slots:
     void searchRequestFinished(QJsonDocument& doc);

launcher/ui/pages/modplatform/ModPage.cpp

@@ -262,7 +262,7 @@ void ModPage::openUrl(const QUrl& url)
 
     const QString address = url.host() + url.path();
     QRegularExpressionMatch match;
-    const char* page;
+    QString page;
 
     match = modrinth.match(address);
     if (match.hasMatch())
@@ -276,7 +276,7 @@ void ModPage::openUrl(const QUrl& url)
             page = "curseforge";
     }
 
-    if (match.hasMatch()) {
+    if (!page.isNull()) {
         const QString slug = match.captured(1);
 
         // ensure the user isn't opening the same mod

launcher/ui/pages/modplatform/atlauncher/AtlListModel.cpp

@@ -32,12 +32,12 @@ ListModel::~ListModel()
 
 int ListModel::rowCount(const QModelIndex &parent) const
 {
-    return modpacks.size();
+    return parent.isValid() ? 0 : modpacks.size();
 }
 
 int ListModel::columnCount(const QModelIndex &parent) const
 {
-    return 1;
+    return parent.isValid() ? 0 : 1;
 }
 
 QVariant ListModel::data(const QModelIndex &index, int role) const

launcher/ui/pages/modplatform/atlauncher/AtlOptionalModDialog.cpp

@@ -75,12 +75,12 @@ QVector<QString> AtlOptionalModListModel::getResult() {
 }
 
 int AtlOptionalModListModel::rowCount(const QModelIndex &parent) const {
-    return m_mods.size();
+    return parent.isValid() ? 0 : m_mods.size();
 }
 
 int AtlOptionalModListModel::columnCount(const QModelIndex &parent) const {
     // Enabled, Name, Description
-    return 3;
+    return parent.isValid() ? 0 : 3;
 }
 
 QVariant AtlOptionalModListModel::data(const QModelIndex &index, int role) const {

launcher/ui/pages/modplatform/flame/FlameModel.cpp

@@ -15,12 +15,12 @@ ListModel::~ListModel() {}
 
 int ListModel::rowCount(const QModelIndex& parent) const
 {
-    return modpacks.size();
+    return parent.isValid() ? 0 : modpacks.size();
 }
 
 int ListModel::columnCount(const QModelIndex& parent) const
 {
-    return 1;
+    return parent.isValid() ? 0 : 1;
 }
 
 QVariant ListModel::data(const QModelIndex& index, int role) const

launcher/ui/pages/modplatform/ftb/FtbListModel.cpp

@@ -34,12 +34,12 @@ ListModel::~ListModel()
 
 int ListModel::rowCount(const QModelIndex &parent) const
 {
-    return modpacks.size();
+    return parent.isValid() ? 0 : modpacks.size();
 }
 
 int ListModel::columnCount(const QModelIndex &parent) const
 {
-    return 1;
+    return parent.isValid() ? 0 : 1;
 }
 
 QVariant ListModel::data(const QModelIndex &index, int role) const

launcher/ui/pages/modplatform/legacy_ftb/ListModel.cpp

@@ -125,12 +125,12 @@ QString ListModel::translatePackType(PackType type) const
 
 int ListModel::rowCount(const QModelIndex &parent) const
 {
-    return modpacks.size();
+    return parent.isValid() ? 0 : modpacks.size();
 }
 
 int ListModel::columnCount(const QModelIndex &parent) const
 {
-    return 1;
+    return parent.isValid() ? 0 : 1;
 }
 
 QVariant ListModel::data(const QModelIndex &index, int role) const

launcher/ui/pages/modplatform/modrinth/ModrinthModel.h

@@ -55,8 +55,8 @@ class ModpackListModel : public QAbstractListModel {
     ModpackListModel(ModrinthPage* parent);
     ~ModpackListModel() override = default;
 
-    inline auto rowCount(const QModelIndex& parent) const -> int override { return modpacks.size(); };
-    inline auto columnCount(const QModelIndex& parent) const -> int override { return 1; };
+    inline auto rowCount(const QModelIndex& parent) const -> int override { return parent.isValid() ? 0 : modpacks.size(); };
+    inline auto columnCount(const QModelIndex& parent) const -> int override { return parent.isValid() ? 0 : 1; };
     inline auto flags(const QModelIndex& index) const -> Qt::ItemFlags override { return QAbstractListModel::flags(index); };
 
     auto debugName() const -> QString;
@@ -74,7 +74,7 @@ class ModpackListModel : public QAbstractListModel {
 
     void getLogo(const QString& logo, const QString& logoUrl, LogoCallback callback);
 
-    inline auto canFetchMore(const QModelIndex& parent) const -> bool override { return searchState == CanPossiblyFetchMore; };
+    inline auto canFetchMore(const QModelIndex& parent) const -> bool override { return parent.isValid() ? false : searchState == CanPossiblyFetchMore; };
 
    public slots:
     void searchRequestFinished(QJsonDocument& doc_all);

launcher/ui/pages/modplatform/technic/TechnicModel.cpp

@@ -80,14 +80,14 @@ QVariant Technic::ListModel::data(const QModelIndex& index, int role) const
     return QVariant();
 }
 
-int Technic::ListModel::columnCount(const QModelIndex&) const
+int Technic::ListModel::columnCount(const QModelIndex& parent) const
 {
-    return 1;
+    return parent.isValid() ? 0 : 1;
 }
 
-int Technic::ListModel::rowCount(const QModelIndex&) const
+int Technic::ListModel::rowCount(const QModelIndex& parent) const
 {
-    return modpacks.size();
+    return parent.isValid() ? 0 : modpacks.size();
 }
 
 void Technic::ListModel::searchWithTerm(const QString& term)

program_info/win_install.nsi.in

@@ -110,6 +110,142 @@ VIAddVersionKey /LANG=${LANG_ENGLISH} "LegalCopyright" "@Launcher_Copyright@"
 VIAddVersionKey /LANG=${LANG_ENGLISH} "FileVersion" "@Launcher_VERSION_NAME4@"
 VIAddVersionKey /LANG=${LANG_ENGLISH} "ProductVersion" "@Launcher_VERSION_NAME4@"
 
+
+;--------------------------------
+; Shell Associate Macros
+
+!macro APP_SETUP DESCRIPTION ICON APP_ID APP_NAME APP_EXE COMMANDTEXT COMMAND ; VERB APP_COMPANY
+  ; setup APP_ID
+  WriteRegStr ShCtx "Software\Classes\${APP_ID}" "" `${DESCRIPTION}`
+  WriteRegStr ShCtx "Software\Classes\${APP_ID}\DefaultIcon" "" `${ICON}`
+  ; default open verb
+  WriteRegStr ShCtx "Software\Classes\${APP_ID}\shell" "" "open"                  
+  WriteRegStr ShCtx "Software\Classes\${APP_ID}\shell\open" "" `${COMMANDTEXT}`
+  WriteRegStr ShCtx "Software\Classes\${APP_ID}\shell\open\command" "" `${COMMAND}`
+
+  ; if you want the app to use it's own implementation of a verb
+  ;WriteRegStr ShCtx "Software\Classes\${APP_ID}\shell\${VERB}" "" "${DESCRIPTION}"
+  ;WriteRegStr ShCtx "Software\Classes\${APP_ID}\shell\${VERB}\command" "" `${COMMAND}`
+
+  WriteRegStr ShCtx "Software\Classes\Applications\${APP_EXE}\shell\open\command" "" `${COMMAND}`
+  WriteRegStr ShCtx "Software\Classes\Applications\${APP_EXE}" "FriendlyAppName" `${APP_NAME}` ; [Optional]
+  ;WriteRegStr ShCtx "Software\Classes\Applications\${APP_EXE}" "ApplicationCompany" `${APP_COMPANY}` ; [Optional]
+  ;WriteRegNone ShCtx "Software\Classes\Applications\${APP_EXE}\SupportedTypes" ".${EXT}" ; [Optional] Only allow "Open With" with specific extension(s) on WinXP+
+
+  # Register "Default Programs" [Optional]
+  !ifdef REGISTER_DEFAULTPROGRAMS
+  WriteRegStr ShCtx "Software\Classes\Applications\${APP_EXE}\Capabilities" "ApplicationDescription" `${DESCRIPTION}`
+  WriteRegStr ShCtx "Software\RegisteredApplications" `${APP_NAME}` "Software\Classes\Applications\${APP_EXE}\Capabilities"
+  !endif
+
+!macroend
+
+!macro APP_ASSOCIATE EXT APP_ID APP_EXE OVERWIRTE
+  ; Backup the previously associated file class
+  ${If} ${OVERWIRTE} == true
+  ReadRegStr $R0 ShCtx "Software\Classes\${EXT}" ""
+  WriteRegStr ShCtx "Software\Classes\${EXT}" "${APP_ID}_backup" "$R0"
+  WriteRegStr ShCtx "Software\Classes\${EXT}" "" "${APP_ID}"
+  ${EndIf}
+
+  WriteRegNone ShCtx "Software\Classes\${EXT}\OpenWithList" "${APP_EXE}" ; Win2000+
+  WriteRegNone ShCtx "Software\Classes\${EXT}\OpenWithProgids" "${APP_ID}" ; WinXP+
+
+  # Register "Default Programs" [Optional]
+  !ifdef REGISTER_DEFAULTPROGRAMS
+  WriteRegStr ShCtx "Software\Classes\Applications\${APP_EXE}\Capabilities\FileAssociations" "${EXT}" "${APP_ID}"
+  !endif
+
+!macroend
+
+!macro APP_UNASSOCIATE EXT APP_ID
+
+  # Unregister file type
+  ClearErrors
+  ; restore backup
+  ReadRegStr $R1 ShCtx "Software\Classes\${EXT}" ""
+  ${If} $R1 == "${APP_ID}"
+    ReadRegStr $R0 ShCtx "Software\Classes\${EXT}" `${APP_ID}_backup`
+    WriteRegStr ShCtx "Software\Classes\${EXT}" "" "$R0"
+  ${Else}
+    ReadRegStr $R0 ShCtx "Software\Classes\${EXT}" ""
+  ${EndIf}
+
+  DeleteRegKey /IfEmpty ShCtx "Software\Classes\${APP_ID}"
+  ${IfNot} ${Errors}
+  ${AndIf} $R0 == "${APP_ID}"
+    DeleteRegValue ShCtx "Software\Classes\${EXT}" ""
+    DeleteRegKey /IfEmpty ShCtx "Software\Classes\${EXT}"
+  ${EndIf}
+
+  DeleteRegValue ShCtx "Software\Classes\${EXT}\OpenWithList" "${APP_EXE}"
+  DeleteRegKey /IfEmpty ShCtx "Software\Classes\${EXT}\OpenWithList"
+  DeleteRegValue ShCtx "Software\Classes\${EXT}\OpenWithProgids" "${APP_ID}"
+  DeleteRegKey /IfEmpty ShCtx "Software\Classes\${EXT}\OpenWithProgids"
+  DeleteRegKey /IfEmpty  ShCtx "Software\Classes\${EXT}"
+
+  # Attempt to clean up junk left behind by the Windows shell
+  DeleteRegValue HKCU "Software\Microsoft\Windows\CurrentVersion\ApplicationAssociationToasts" "${APP_ID}_${EXT}"
+  DeleteRegValue HKCU "Software\Microsoft\Windows\CurrentVersion\ApplicationAssociationToasts" "Applications\${APP_EXE}_${EXT}"
+  DeleteRegValue HKCU "Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\${EXT}\OpenWithProgids" "${APP_ID}"
+  DeleteRegKey /IfEmpty HKCU "Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\${EXT}\OpenWithProgids"
+  DeleteRegKey /IfEmpty HKCU "Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\${EXT}\OpenWithList"
+  DeleteRegKey /IfEmpty HKCU "Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\${EXT}"
+  ;DeleteRegKey HKCU "Software\Microsoft\Windows\Roaming\OpenWith\FileExts\.${EXT}"
+  ;DeleteRegKey HKCU "Software\Microsoft\Windows\CurrentVersion\Explorer\RecentDocs\.${EXT}"
+
+!macroend
+
+!macro APP_TEARDOWN APP_ID APP_NAME APP_EXE
+
+  # Unregister file type
+  ClearErrors
+  DeleteRegKey /IfEmpty ShCtx "Software\Classes\${APP_ID}\shell"
+  ${IfNot} ${Errors}
+    DeleteRegKey ShCtx "Software\Classes\${APP_ID}\DefaultIcon"
+  ${EndIf}
+  
+  # Unregister "Open With"
+  DeleteRegKey ShCtx "Software\Classes\Applications\${APP_EXE}"
+
+  # Unregister "Default Programs"
+  !ifdef REGISTER_DEFAULTPROGRAMS
+  DeleteRegValue ShCtx "Software\RegisteredApplications" `${APP_NAME}`
+  DeleteRegKey ShCtx "Software\Classes\Applications\${APP_EXE}\Capabilities"
+  DeleteRegKey /IfEmpty ShCtx "Software\Classes\Applications\${APP_EXE}"
+  !endif
+
+  DeleteRegKey ShCtx `Software\Classes\${APP_ID}`
+  DeleteRegKey ShCtx "Software\Classes\Applications\${APP_EXE}"
+
+  # Attempt to clean up junk left behind by the Windows shell
+  DeleteRegValue HKCU "Software\Microsoft\Windows\CurrentVersion\Search\JumplistData" "$INSTDIR\${APP_EXE}"
+  DeleteRegValue HKCU "Software\Classes\Local Settings\Software\Microsoft\Windows\Shell\MuiCache" "$INSTDIR\${APP_EXE}.FriendlyAppName"
+  DeleteRegValue HKCU "Software\Classes\Local Settings\Software\Microsoft\Windows\Shell\MuiCache" "$INSTDIR\${APP_EXE}.ApplicationCompany"
+  DeleteRegValue HKCU "Software\Microsoft\Windows\ShellNoRoam\MUICache" "$INSTDIR\${APP_EXE}" ; WinXP
+  DeleteRegValue HKCU "Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Compatibility Assistant\Store" "$INSTDIR\${APP_EXE}"
+
+!macroend
+
+; !defines for use with SHChangeNotify
+!ifdef SHCNE_ASSOCCHANGED
+!undef SHCNE_ASSOCCHANGED
+!endif
+!define SHCNE_ASSOCCHANGED 0x08000000
+!ifdef SHCNF_FLUSH
+!undef SHCNF_FLUSH
+!endif
+!define SHCNF_FLUSH        0x1000
+
+
+# ensure this is called at the end of any section that changes shell keys
+!macro NotifyShell_AssocChanged
+; Using the system.dll plugin to call the SHChangeNotify Win32 API function so we
+; can update the shell.
+  System::Call "shell32::SHChangeNotify(i,i,i,i) (${SHCNE_ASSOCCHANGED}, ${SHCNF_FLUSH}, 0, 0)"
+!macroend
+
+
 ;--------------------------------
 
 ; The stuff to install
@@ -171,6 +307,27 @@ Section /o "Desktop Shortcut" DESKTOP_SHORTCUTS
 
 SectionEnd
 
+
+!define APP_ID "@Launcher_CommonName@.App"
+!define APP_EXE "@Launcher_APP_BINARY_NAME@.exe"
+!define APP_ICON "$INSTDIR\${APP_EXE},0"
+!define APP_DESCRIPTION "@Launcher_DisplayName@"
+!define APP_NAME "@Launcher_DisplayName@"
+!define APP_CMD_TEXT "Minecraft Modpack"
+
+!define REGISTER_DEFAULTPROGRAMS ; value doesn't matter
+
+Section -ShellAssoc
+
+  !insertmacro APP_SETUP `${APP_DESCRIPTION}` `${APP_ICON}` `${APP_ID}` `${APP_CMD_TEXT}` `${APP_EXE}` `${APP_CMD_TEXT}` '$INSTDIR\${APP_EXE} -I "%1"'
+  
+  !insertmacro APP_ASSOCIATE ".zip" `${APP_ID}` `${APP_EXE}` false
+  !insertmacro APP_ASSOCIATE ".mrpack" `${APP_ID}` `${APP_EXE}` true
+
+  !insertmacro NotifyShell_AssocChanged
+SectionEnd
+
+
 ;--------------------------------
 
 ; Uninstaller
@@ -202,6 +359,16 @@ Section "Uninstall"
 
 SectionEnd
 
+Section -un.ShellAssoc
+  
+  !insertmacro APP_TEARDOWN `${APP_ID}` `${APP_NAME}` `${APP_EXE}`
+
+  !insertmacro APP_UNASSOCIATE ".zip" `${APP_ID}`
+  !insertmacro APP_UNASSOCIATE ".mrpack" `${APP_ID}`
+
+  !insertmacro NotifyShell_AssocChanged
+SectionEnd
+
 ;--------------------------------
 
 ; Extra command line parameters