feat: add shaderpack validation

Signed-off-by: Rachel Powers <508861+Ryex@users.noreply.github.com>

launcher/minecraft/mod/ShaderPack.cpp

@@ -0,0 +1,39 @@
+
+// SPDX-FileCopyrightText: 2022 Rachel Powers <508861+Ryex@users.noreply.github.com>
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (C) 2022 Rachel Powers <508861+Ryex@users.noreply.github.com>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "ShaderPack.h"
+
+#include "minecraft/mod/tasks/LocalShaderPackParseTask.h"
+
+
+void ShaderPack::setPackFormat(ShaderPackFormat new_format)
+{
+    QMutexLocker locker(&m_data_lock);
+
+
+    m_pack_format = new_format;
+}
+
+bool ShaderPack::valid() const
+{
+    return m_pack_format != ShaderPackFormat::INVALID;
+}

launcher/minecraft/mod/ShaderPack.h

@@ -0,0 +1,63 @@
+// SPDX-FileCopyrightText: 2022 Rachel Powers <508861+Ryex@users.noreply.github.com>
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (C) 2022 Rachel Powers <508861+Ryex@users.noreply.github.com>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "Resource.h"
+
+/* Info:
+ * Currently For Optifine / Iris shader packs, 
+ * could be expanded to support others should they exsist?
+ *
+ * This class and enum are mostly here as placeholders for validating 
+ * that a shaderpack exsists and is in the right format,
+ * namely that they contain a folder named 'shaders'.
+ *
+ * In the technical sense it would be possible to parse files like `shaders/shaders.properties` 
+ * to get information like the availble profiles but this is not all that usefull without more knoledge of the 
+ * shader mod used to be able to change settings
+ *
+ */
+
+#include <QMutex>
+
+enum ShaderPackFormat {
+	VALID,
+	INVALID
+};
+
+class ShaderPack : public Resource {
+    Q_OBJECT
+   public:
+    using Ptr = shared_qobject_ptr<Resource>;
+
+    ShaderPack(QObject* parent = nullptr) : Resource(parent) {}
+    ShaderPack(QFileInfo file_info) : Resource(file_info) {}
+
+    void setPackFormat(ShaderPackFormat new_format);
+
+    bool valid() const override;
+
+   protected:
+    mutable QMutex m_data_lock;
+
+		ShaderPackFormat m_pack_format = ShaderPackFormat::INVALID;
+};

launcher/minecraft/mod/tasks/LocalResourcePackParseTask.cpp

@@ -75,15 +75,15 @@ bool processFolder(ResourcePack& pack, ProcessingLevel level)
 
     QFileInfo image_file_info(FS::PathCombine(pack.fileinfo().filePath(), "pack.png"));
     if (image_file_info.exists() && image_file_info.isFile()) {
-        QFile mcmeta_file(image_file_info.filePath());
-        if (!mcmeta_file.open(QIODevice::ReadOnly))
+        QFile pack_png_file(image_file_info.filePath());
+        if (!pack_png_file.open(QIODevice::ReadOnly))
             return false; // can't open pack.png file
 
-        auto data = mcmeta_file.readAll();
+        auto data = pack_png_file.readAll();
 
         bool pack_png_result = ResourcePackUtils::processPackPNG(pack, std::move(data));
 
-        mcmeta_file.close();
+        pack_png_file.close();
         if (!pack_png_result) {
             return false; // pack.png invalid
         }

launcher/minecraft/mod/tasks/LocalShaderPackParseTask.cpp

@@ -0,0 +1,116 @@
+// SPDX-FileCopyrightText: 2022 Rachel Powers <508861+Ryex@users.noreply.github.com>
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (C) 2022 Rachel Powers <508861+Ryex@users.noreply.github.com>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "LocalShaderPackParseTask.h"
+
+#include "FileSystem.h"
+
+#include <quazip/quazip.h>
+#include <quazip/quazipfile.h>
+#include <quazip/quazipdir.h>
+
+namespace ShaderPackUtils {
+
+bool process(ShaderPack& pack, ProcessingLevel level)
+{
+    switch (pack.type()) {
+        case ResourceType::FOLDER:
+            return ShaderPackUtils::processFolder(pack, level);
+        case ResourceType::ZIPFILE:
+            return ShaderPackUtils::processZIP(pack, level);
+        default:
+            qWarning() << "Invalid type for shader pack parse task!";
+            return false;
+    }
+}
+
+bool processFolder(ShaderPack& pack, ProcessingLevel level)
+{
+    Q_ASSERT(pack.type() == ResourceType::FOLDER);
+
+    QFileInfo assets_dir_info(FS::PathCombine(pack.fileinfo().filePath(), "shaders"));
+    if (!assets_dir_info.exists() || !assets_dir_info.isDir()) {
+        return false; // assets dir does not exists or isn't valid
+    }
+    pack.setPackFormat(ShaderPackFormat::VALID);
+
+    if (level == ProcessingLevel::BasicInfoOnly) {
+        return true; // only need basic info already checked
+    }
+
+    return true; // all tests passed
+}
+
+bool processZIP(ShaderPack& pack, ProcessingLevel level)
+{
+    Q_ASSERT(pack.type() == ResourceType::ZIPFILE);
+
+    QuaZip zip(pack.fileinfo().filePath());
+    if (!zip.open(QuaZip::mdUnzip))
+        return false; // can't open zip file
+
+    QuaZipFile file(&zip);
+
+    QuaZipDir zipDir(&zip);
+    if (!zipDir.exists("/shaders")) {
+        return false; // assets dir does not exists at zip root
+    }
+    pack.setPackFormat(ShaderPackFormat::VALID);
+
+    if (level == ProcessingLevel::BasicInfoOnly) {
+        zip.close();
+        return true; // only need basic info already checked
+    }
+
+    zip.close();
+
+    return true;
+}
+
+
+bool validate(QFileInfo file)
+{
+    ShaderPack rp{ file };
+    return ShaderPackUtils::process(rp, ProcessingLevel::BasicInfoOnly) && rp.valid();
+}
+
+}  // namespace ShaderPackUtils
+
+LocalShaderPackParseTask::LocalShaderPackParseTask(int token, ShaderPack& sp)
+    : Task(nullptr, false), m_token(token), m_shader_pack(sp)
+{}
+
+bool LocalShaderPackParseTask::abort()
+{
+    m_aborted = true;
+    return true;
+}
+
+void LocalShaderPackParseTask::executeTask()
+{
+    if (!ShaderPackUtils::process(m_shader_pack))
+        return;
+
+    if (m_aborted)
+        emitAborted();
+    else
+        emitSucceeded();
+}

launcher/minecraft/mod/tasks/LocalShaderPackParseTask.h

@@ -0,0 +1,63 @@
+// SPDX-FileCopyrightText: 2022 Rachel Powers <508861+Ryex@users.noreply.github.com>
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (C) 2022 Rachel Powers <508861+Ryex@users.noreply.github.com>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+
+#pragma once
+
+#include <QDebug>
+#include <QObject>
+
+#include "minecraft/mod/ShaderPack.h"
+
+#include "tasks/Task.h"
+
+namespace ShaderPackUtils {
+
+enum class ProcessingLevel { Full, BasicInfoOnly };
+
+bool process(ShaderPack& pack, ProcessingLevel level = ProcessingLevel::Full);
+
+bool processZIP(ShaderPack& pack, ProcessingLevel level = ProcessingLevel::Full);
+bool processFolder(ShaderPack& pack, ProcessingLevel level = ProcessingLevel::Full);
+
+/** Checks whether a file is valid as a resource pack or not. */
+bool validate(QFileInfo file);
+}  // namespace ShaderPackUtils
+
+class LocalShaderPackParseTask : public Task {
+    Q_OBJECT
+   public:
+    LocalShaderPackParseTask(int token, ShaderPack& rp);
+
+    [[nodiscard]] bool canAbort() const override { return true; }
+    bool abort() override;
+
+    void executeTask() override;
+
+    [[nodiscard]] int token() const { return m_token; }
+
+   private:
+    int m_token;
+
+    ShaderPack& m_shader_pack;
+
+    bool m_aborted = false;
+};