1 files changed, 113 insertions, 0 deletions
diff --git a/launcher/minecraft/mod/tasks/LocalShaderPackParseTask.cpp b/launcher/minecraft/mod/tasks/LocalShaderPackParseTask.cpp
new file mode 100644
index 00000000..a9949735
--- /dev/null
+++ b/launcher/minecraft/mod/tasks/LocalShaderPackParseTask.cpp
@@ -0,0 +1,113 @@
+// 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/quazipdir.h>
+#include <quazip/quazipfile.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 shaders_dir_info(FS::PathCombine(pack.fileinfo().filePath(), "shaders"));
+    if (!shaders_dir_info.exists() || !shaders_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 sp{ file };
+    return ShaderPackUtils::process(sp, ProcessingLevel::BasicInfoOnly) && sp.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();
+}