feat: initial commit for G-Launcher based on Firefly with Horoyoi enhancements

pkg/constant/constant.go

@@ -0,0 +1,39 @@
+package constant
+
+const ProxyGitUrl = "https://git.kain.io.vn/api/v1/repos/Firefly-Shelter/FireflyGo_Proxy/releases"
+const ServerGitUrl = "https://git.kain.io.vn/api/v1/repos/Firefly-Shelter/FireflyGo_Local_Archive/releases"
+const LauncherGitUrl = "https://git.kain.io.vn/api/v1/repos/Firefly-Shelter/Firefly_Launcher/releases"
+const ServerStorageUrl = "./server"
+const ProxyStorageUrl = "./proxy"
+const ServerZipFile = "prebuild_win_x86.zip"
+const ProxyFile = "firefly-go-proxy.exe"
+const LauncherFile = "g-launcher.exe"
+const TempUrl = "./temp"
+
+const CurrentLauncherVersion = "1.0.0"
+
+type ToolFile string
+
+const (
+	Tool7zaExe     ToolFile = "bin/7za.exe"
+	Tool7zaDLL     ToolFile = "bin/7za.dll"
+	Tool7zxaDLL    ToolFile = "bin/7zxa.dll"
+	ToolHPatchzExe ToolFile = "bin/hpatchz.exe"
+	ToolZiftExe    ToolFile = "bin/zift.exe"
+)
+
+var RequiredFiles = map[ToolFile]string{
+	Tool7zaExe:     "assets/7za.exe",
+	Tool7zaDLL:     "assets/7za.dll",
+	Tool7zxaDLL:    "assets/7zxa.dll",
+	ToolHPatchzExe: "assets/hpatchz.exe",
+	ToolZiftExe:    "assets/zift.exe",
+}
+
+func (t ToolFile) GetEmbedPath() string {
+	return RequiredFiles[t]
+}
+
+func (t ToolFile) String() string {
+	return string(t)
+}

pkg/firefly/chunk.go

@@ -0,0 +1,73 @@
+package firefly
+
+import (
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+
+	"golang.org/x/exp/mmap"
+)
+
+type ChunkInfo struct {
+	Name   string
+	Offset int64
+	Size   int64
+}
+
+func ProcessWithBufReader(path string, chunks []ChunkInfo) {
+	file, err := os.Open(path)
+	if err != nil {
+		fmt.Printf("Error opening file %s: %v\n", path, err)
+		return
+	}
+	defer file.Close()
+
+	for _, chunk := range chunks {
+		buffer, err := ReadChunkData(file, chunk.Offset, chunk.Size)
+		if err != nil {
+			fmt.Printf("Error reading chunk %s: %v\n", chunk.Name, err)
+			continue
+		}
+
+		assetPath := filepath.Join("chunk_tmp", chunk.Name)
+		parentDir := filepath.Dir(assetPath)
+		if _, err := os.Stat(parentDir); os.IsNotExist(err) {
+			if err := os.MkdirAll(parentDir, 0o755); err != nil {
+				fmt.Printf("Error creating directory %s: %v\n", parentDir, err)
+				continue
+			}
+		}
+
+		if err := os.WriteFile(assetPath, buffer, 0o644); err != nil {
+			fmt.Printf("Error writing chunk file %s: %v\n", assetPath, err)
+		}
+	}
+}
+
+func ReadChunkData(file *os.File, offset, size int64) ([]byte, error) {
+	info, err := file.Stat()
+	if err != nil {
+		return nil, fmt.Errorf("error getting file info: %w", err)
+	}
+
+	if info.Size() > 1024*1024 && size > 1024*1024 {
+		mmapReader, err := mmap.Open(file.Name())
+		if err == nil {
+			defer mmapReader.Close()
+			buffer := make([]byte, size)
+			_, err := mmapReader.ReadAt(buffer, offset)
+			if err != nil && err != io.EOF {
+				return nil, fmt.Errorf("error reading mmap: %w", err)
+			}
+			return buffer, nil
+		}
+	}
+
+	buffer := make([]byte, size)
+	_, err = file.ReadAt(buffer, offset)
+	if err != nil && err != io.EOF {
+		return nil, fmt.Errorf("error reading buffered: %w", err)
+	}
+	return buffer, nil
+}

pkg/firefly/ldiff.go

@@ -0,0 +1,94 @@
+package firefly
+
+import (
+	"g-launcher/pkg/firefly/pb"
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"golang.org/x/exp/mmap"
+)
+
+
+func LDiffFile(data *pb.AssetManifest, assetName string, assetSize int64, ldiffsDir, outputDir string) error {
+	path := filepath.Join(ldiffsDir, data.ChunkFileName)
+
+	info, err := os.Stat(path)
+	if err != nil {
+		return fmt.Errorf("%s does not exist: %w", path, err)
+	}
+
+	fileSize := info.Size()
+	var buffer []byte
+
+	if fileSize > 10*1024*1024 && data.HdiffFileSize > 1*1024*1024 {
+		// mmap for large files using x/exp/mmap
+		reader, err := mmap.Open(path)
+		if err != nil {
+			// fallback to buffered read
+			file, err := os.Open(path)
+			if err != nil {
+				return fmt.Errorf("error opening file %s: %w", path, err)
+			}
+			defer file.Close()
+			buffer, err = ReadBuffer(file, data.HdiffFileInChunkOffset, data.HdiffFileSize)
+			if err != nil {
+				return err
+			}
+		} else {
+			defer reader.Close()
+			buffer = make([]byte, data.HdiffFileSize)
+			_, err := reader.ReadAt(buffer, data.HdiffFileInChunkOffset)
+			if err != nil {
+				return fmt.Errorf("error reading mmap data: %w", err)
+			}
+		}
+	} else {
+		// small files, buffered read
+		file, err := os.Open(path)
+		if err != nil {
+			return fmt.Errorf("error opening file %s: %w", path, err)
+		}
+		defer file.Close()
+
+		buffer, err = ReadBuffer(file, data.HdiffFileInChunkOffset, data.HdiffFileSize)
+		if err != nil {
+			return err
+		}
+	}
+
+	extension := ""
+	if data.OriginalFileSize != 0 || assetSize != data.HdiffFileSize {
+		extension = ".hdiff"
+	}
+	assetPath := filepath.Join(outputDir, assetName+extension)
+	parentDir := filepath.Dir(assetPath)
+	if _, err := os.Stat(parentDir); os.IsNotExist(err) {
+		if err := os.MkdirAll(parentDir, 0o755); err != nil {
+			return fmt.Errorf("error creating directory %s: %w", parentDir, err)
+		}
+	}
+
+	if err := os.WriteFile(assetPath, buffer, 0o644); err != nil {
+		return fmt.Errorf("error writing file %s: %w", assetPath, err)
+	}
+
+	return nil
+}
+
+
+
+func ReadBuffer(file *os.File, offset int64, size int64) ([]byte, error) {
+	buffer := make([]byte, size)
+
+	n, err := file.ReadAt(buffer, offset)
+	if err != nil {
+		return nil, fmt.Errorf("error reading data: %w", err)
+	}
+	if int64(n) != size {
+		return nil, fmt.Errorf("expected %d bytes, but read %d bytes", size, n)
+	}
+
+	return buffer, nil
+}
+

pkg/firefly/loader.go

@@ -0,0 +1,66 @@
+package firefly
+
+import (
+	"bufio"
+	"g-launcher/pkg/firefly/pb"
+	"io"
+	"os"
+
+	"github.com/klauspost/compress/zstd"
+	"google.golang.org/protobuf/proto"
+)
+
+func LoadChunkProto(path string) (*pb.ChunkProto, error) {
+	file, err := os.Open(path)
+	if err != nil {
+		return nil, err
+	}
+	defer file.Close()
+
+	reader := bufio.NewReader(file)
+	decoder, err := zstd.NewReader(reader)
+	if err != nil {
+		return nil, err
+	}
+	defer decoder.Close()
+
+	data, err := io.ReadAll(decoder)
+	if err != nil {
+		return nil, err
+	}
+
+	var chunk pb.ChunkProto
+	if err := proto.Unmarshal(data, &chunk); err != nil {
+		return nil, err
+	}
+
+	return &chunk, nil
+}
+
+// Load ManifestProto từ file Zstd + Protobuf
+func LoadManifestProto(path string) (*pb.ManifestProto, error) {
+	file, err := os.Open(path)
+	if err != nil {
+		return nil, err
+	}
+	defer file.Close()
+
+	reader := bufio.NewReader(file)
+	decoder, err := zstd.NewReader(reader)
+	if err != nil {
+		return nil, err
+	}
+	defer decoder.Close()
+
+	data, err := io.ReadAll(decoder)
+	if err != nil {
+		return nil, err
+	}
+
+	var manifest pb.ManifestProto
+	if err := proto.Unmarshal(data, &manifest); err != nil {
+		return nil, err
+	}
+
+	return &manifest, nil
+}

pkg/firefly/pb/firefly.pb.go

@@ -0,0 +1,651 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.36.5
+// 	protoc        v4.25.6
+// source: proto/firefly.proto
+
+package pb
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+	unsafe "unsafe"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type ChunkProto struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Assets        []*AssetChunkProperty  `protobuf:"bytes,1,rep,name=assets,proto3" json:"assets,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *ChunkProto) Reset() {
+	*x = ChunkProto{}
+	mi := &file_proto_firefly_proto_msgTypes[0]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *ChunkProto) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ChunkProto) ProtoMessage() {}
+
+func (x *ChunkProto) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_firefly_proto_msgTypes[0]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ChunkProto.ProtoReflect.Descriptor instead.
+func (*ChunkProto) Descriptor() ([]byte, []int) {
+	return file_proto_firefly_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *ChunkProto) GetAssets() []*AssetChunkProperty {
+	if x != nil {
+		return x.Assets
+	}
+	return nil
+}
+
+type AssetChunkProperty struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	AssetName     string                 `protobuf:"bytes,1,opt,name=asset_name,json=assetName,proto3" json:"asset_name,omitempty"`
+	AssetChunks   []*AssetChunk          `protobuf:"bytes,2,rep,name=asset_chunks,json=assetChunks,proto3" json:"asset_chunks,omitempty"`
+	AssetType     int32                  `protobuf:"varint,3,opt,name=asset_type,json=assetType,proto3" json:"asset_type,omitempty"`
+	AssetSize     int64                  `protobuf:"varint,4,opt,name=asset_size,json=assetSize,proto3" json:"asset_size,omitempty"`
+	AssetHashMd5  string                 `protobuf:"bytes,5,opt,name=asset_hash_md5,json=assetHashMd5,proto3" json:"asset_hash_md5,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *AssetChunkProperty) Reset() {
+	*x = AssetChunkProperty{}
+	mi := &file_proto_firefly_proto_msgTypes[1]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *AssetChunkProperty) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*AssetChunkProperty) ProtoMessage() {}
+
+func (x *AssetChunkProperty) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_firefly_proto_msgTypes[1]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use AssetChunkProperty.ProtoReflect.Descriptor instead.
+func (*AssetChunkProperty) Descriptor() ([]byte, []int) {
+	return file_proto_firefly_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *AssetChunkProperty) GetAssetName() string {
+	if x != nil {
+		return x.AssetName
+	}
+	return ""
+}
+
+func (x *AssetChunkProperty) GetAssetChunks() []*AssetChunk {
+	if x != nil {
+		return x.AssetChunks
+	}
+	return nil
+}
+
+func (x *AssetChunkProperty) GetAssetType() int32 {
+	if x != nil {
+		return x.AssetType
+	}
+	return 0
+}
+
+func (x *AssetChunkProperty) GetAssetSize() int64 {
+	if x != nil {
+		return x.AssetSize
+	}
+	return 0
+}
+
+func (x *AssetChunkProperty) GetAssetHashMd5() string {
+	if x != nil {
+		return x.AssetHashMd5
+	}
+	return ""
+}
+
+type AssetChunk struct {
+	state                    protoimpl.MessageState `protogen:"open.v1"`
+	ChunkName                string                 `protobuf:"bytes,1,opt,name=chunk_name,json=chunkName,proto3" json:"chunk_name,omitempty"`
+	ChunkDecompressedHashMd5 string                 `protobuf:"bytes,2,opt,name=chunk_decompressed_hash_md5,json=chunkDecompressedHashMd5,proto3" json:"chunk_decompressed_hash_md5,omitempty"`
+	ChunkOnFileOffset        int64                  `protobuf:"varint,3,opt,name=chunk_on_file_offset,json=chunkOnFileOffset,proto3" json:"chunk_on_file_offset,omitempty"`
+	ChunkSize                int64                  `protobuf:"varint,4,opt,name=chunk_size,json=chunkSize,proto3" json:"chunk_size,omitempty"`
+	ChunkSizeDecompressed    int64                  `protobuf:"varint,5,opt,name=chunk_size_decompressed,json=chunkSizeDecompressed,proto3" json:"chunk_size_decompressed,omitempty"`
+	unknownFields            protoimpl.UnknownFields
+	sizeCache                protoimpl.SizeCache
+}
+
+func (x *AssetChunk) Reset() {
+	*x = AssetChunk{}
+	mi := &file_proto_firefly_proto_msgTypes[2]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *AssetChunk) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*AssetChunk) ProtoMessage() {}
+
+func (x *AssetChunk) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_firefly_proto_msgTypes[2]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use AssetChunk.ProtoReflect.Descriptor instead.
+func (*AssetChunk) Descriptor() ([]byte, []int) {
+	return file_proto_firefly_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *AssetChunk) GetChunkName() string {
+	if x != nil {
+		return x.ChunkName
+	}
+	return ""
+}
+
+func (x *AssetChunk) GetChunkDecompressedHashMd5() string {
+	if x != nil {
+		return x.ChunkDecompressedHashMd5
+	}
+	return ""
+}
+
+func (x *AssetChunk) GetChunkOnFileOffset() int64 {
+	if x != nil {
+		return x.ChunkOnFileOffset
+	}
+	return 0
+}
+
+func (x *AssetChunk) GetChunkSize() int64 {
+	if x != nil {
+		return x.ChunkSize
+	}
+	return 0
+}
+
+func (x *AssetChunk) GetChunkSizeDecompressed() int64 {
+	if x != nil {
+		return x.ChunkSizeDecompressed
+	}
+	return 0
+}
+
+type ManifestProto struct {
+	state         protoimpl.MessageState   `protogen:"open.v1"`
+	Assets        []*AssetManifestProperty `protobuf:"bytes,1,rep,name=assets,proto3" json:"assets,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *ManifestProto) Reset() {
+	*x = ManifestProto{}
+	mi := &file_proto_firefly_proto_msgTypes[3]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *ManifestProto) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ManifestProto) ProtoMessage() {}
+
+func (x *ManifestProto) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_firefly_proto_msgTypes[3]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ManifestProto.ProtoReflect.Descriptor instead.
+func (*ManifestProto) Descriptor() ([]byte, []int) {
+	return file_proto_firefly_proto_rawDescGZIP(), []int{3}
+}
+
+func (x *ManifestProto) GetAssets() []*AssetManifestProperty {
+	if x != nil {
+		return x.Assets
+	}
+	return nil
+}
+
+type AssetManifestProperty struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	AssetName     string                 `protobuf:"bytes,1,opt,name=asset_name,json=assetName,proto3" json:"asset_name,omitempty"`
+	AssetSize     int64                  `protobuf:"varint,2,opt,name=asset_size,json=assetSize,proto3" json:"asset_size,omitempty"`
+	AssetHashMd5  string                 `protobuf:"bytes,3,opt,name=asset_hash_md5,json=assetHashMd5,proto3" json:"asset_hash_md5,omitempty"`
+	AssetData     *AssetManifestChunk    `protobuf:"bytes,4,opt,name=asset_data,json=assetData,proto3" json:"asset_data,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *AssetManifestProperty) Reset() {
+	*x = AssetManifestProperty{}
+	mi := &file_proto_firefly_proto_msgTypes[4]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *AssetManifestProperty) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*AssetManifestProperty) ProtoMessage() {}
+
+func (x *AssetManifestProperty) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_firefly_proto_msgTypes[4]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use AssetManifestProperty.ProtoReflect.Descriptor instead.
+func (*AssetManifestProperty) Descriptor() ([]byte, []int) {
+	return file_proto_firefly_proto_rawDescGZIP(), []int{4}
+}
+
+func (x *AssetManifestProperty) GetAssetName() string {
+	if x != nil {
+		return x.AssetName
+	}
+	return ""
+}
+
+func (x *AssetManifestProperty) GetAssetSize() int64 {
+	if x != nil {
+		return x.AssetSize
+	}
+	return 0
+}
+
+func (x *AssetManifestProperty) GetAssetHashMd5() string {
+	if x != nil {
+		return x.AssetHashMd5
+	}
+	return ""
+}
+
+func (x *AssetManifestProperty) GetAssetData() *AssetManifestChunk {
+	if x != nil {
+		return x.AssetData
+	}
+	return nil
+}
+
+type AssetManifestChunk struct {
+	state              protoimpl.MessageState `protogen:"open.v1"`
+	LatestAssetVersion string                 `protobuf:"bytes,1,opt,name=latest_asset_version,json=latestAssetVersion,proto3" json:"latest_asset_version,omitempty"`
+	Assets             []*AssetManifest       `protobuf:"bytes,2,rep,name=assets,proto3" json:"assets,omitempty"`
+	unknownFields      protoimpl.UnknownFields
+	sizeCache          protoimpl.SizeCache
+}
+
+func (x *AssetManifestChunk) Reset() {
+	*x = AssetManifestChunk{}
+	mi := &file_proto_firefly_proto_msgTypes[5]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *AssetManifestChunk) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*AssetManifestChunk) ProtoMessage() {}
+
+func (x *AssetManifestChunk) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_firefly_proto_msgTypes[5]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use AssetManifestChunk.ProtoReflect.Descriptor instead.
+func (*AssetManifestChunk) Descriptor() ([]byte, []int) {
+	return file_proto_firefly_proto_rawDescGZIP(), []int{5}
+}
+
+func (x *AssetManifestChunk) GetLatestAssetVersion() string {
+	if x != nil {
+		return x.LatestAssetVersion
+	}
+	return ""
+}
+
+func (x *AssetManifestChunk) GetAssets() []*AssetManifest {
+	if x != nil {
+		return x.Assets
+	}
+	return nil
+}
+
+type AssetManifest struct {
+	state                  protoimpl.MessageState `protogen:"open.v1"`
+	ChunkFileName          string                 `protobuf:"bytes,1,opt,name=chunk_file_name,json=chunkFileName,proto3" json:"chunk_file_name,omitempty"`
+	ChunkFileVersion       string                 `protobuf:"bytes,2,opt,name=chunk_file_version,json=chunkFileVersion,proto3" json:"chunk_file_version,omitempty"`
+	ChunkFileNode          string                 `protobuf:"bytes,3,opt,name=chunk_file_node,json=chunkFileNode,proto3" json:"chunk_file_node,omitempty"`
+	ChunkFileSize          int64                  `protobuf:"varint,4,opt,name=chunk_file_size,json=chunkFileSize,proto3" json:"chunk_file_size,omitempty"`
+	ChunkFileMd5           string                 `protobuf:"bytes,5,opt,name=chunk_file_md5,json=chunkFileMd5,proto3" json:"chunk_file_md5,omitempty"`
+	HdiffFileInChunkOffset int64                  `protobuf:"varint,6,opt,name=hdiff_file_in_chunk_offset,json=hdiffFileInChunkOffset,proto3" json:"hdiff_file_in_chunk_offset,omitempty"`
+	HdiffFileSize          int64                  `protobuf:"varint,7,opt,name=hdiff_file_size,json=hdiffFileSize,proto3" json:"hdiff_file_size,omitempty"`
+	OriginalFilePath       string                 `protobuf:"bytes,8,opt,name=original_file_path,json=originalFilePath,proto3" json:"original_file_path,omitempty"`
+	OriginalFileSize       int64                  `protobuf:"varint,9,opt,name=original_file_size,json=originalFileSize,proto3" json:"original_file_size,omitempty"`
+	OriginalFileMd5        string                 `protobuf:"bytes,10,opt,name=original_file_md5,json=originalFileMd5,proto3" json:"original_file_md5,omitempty"`
+	unknownFields          protoimpl.UnknownFields
+	sizeCache              protoimpl.SizeCache
+}
+
+func (x *AssetManifest) Reset() {
+	*x = AssetManifest{}
+	mi := &file_proto_firefly_proto_msgTypes[6]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *AssetManifest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*AssetManifest) ProtoMessage() {}
+
+func (x *AssetManifest) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_firefly_proto_msgTypes[6]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use AssetManifest.ProtoReflect.Descriptor instead.
+func (*AssetManifest) Descriptor() ([]byte, []int) {
+	return file_proto_firefly_proto_rawDescGZIP(), []int{6}
+}
+
+func (x *AssetManifest) GetChunkFileName() string {
+	if x != nil {
+		return x.ChunkFileName
+	}
+	return ""
+}
+
+func (x *AssetManifest) GetChunkFileVersion() string {
+	if x != nil {
+		return x.ChunkFileVersion
+	}
+	return ""
+}
+
+func (x *AssetManifest) GetChunkFileNode() string {
+	if x != nil {
+		return x.ChunkFileNode
+	}
+	return ""
+}
+
+func (x *AssetManifest) GetChunkFileSize() int64 {
+	if x != nil {
+		return x.ChunkFileSize
+	}
+	return 0
+}
+
+func (x *AssetManifest) GetChunkFileMd5() string {
+	if x != nil {
+		return x.ChunkFileMd5
+	}
+	return ""
+}
+
+func (x *AssetManifest) GetHdiffFileInChunkOffset() int64 {
+	if x != nil {
+		return x.HdiffFileInChunkOffset
+	}
+	return 0
+}
+
+func (x *AssetManifest) GetHdiffFileSize() int64 {
+	if x != nil {
+		return x.HdiffFileSize
+	}
+	return 0
+}
+
+func (x *AssetManifest) GetOriginalFilePath() string {
+	if x != nil {
+		return x.OriginalFilePath
+	}
+	return ""
+}
+
+func (x *AssetManifest) GetOriginalFileSize() int64 {
+	if x != nil {
+		return x.OriginalFileSize
+	}
+	return 0
+}
+
+func (x *AssetManifest) GetOriginalFileMd5() string {
+	if x != nil {
+		return x.OriginalFileMd5
+	}
+	return ""
+}
+
+var File_proto_firefly_proto protoreflect.FileDescriptor
+
+var file_proto_firefly_proto_rawDesc = string([]byte{
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+	0x72, 0x6f, 0x74, 0x6f, 0x33,
+})
+
+var (
+	file_proto_firefly_proto_rawDescOnce sync.Once
+	file_proto_firefly_proto_rawDescData []byte
+)
+
+func file_proto_firefly_proto_rawDescGZIP() []byte {
+	file_proto_firefly_proto_rawDescOnce.Do(func() {
+		file_proto_firefly_proto_rawDescData = protoimpl.X.CompressGZIP(unsafe.Slice(unsafe.StringData(file_proto_firefly_proto_rawDesc), len(file_proto_firefly_proto_rawDesc)))
+	})
+	return file_proto_firefly_proto_rawDescData
+}
+
+var file_proto_firefly_proto_msgTypes = make([]protoimpl.MessageInfo, 7)
+var file_proto_firefly_proto_goTypes = []any{
+	(*ChunkProto)(nil),            // 0: firefly.ChunkProto
+	(*AssetChunkProperty)(nil),    // 1: firefly.AssetChunkProperty
+	(*AssetChunk)(nil),            // 2: firefly.AssetChunk
+	(*ManifestProto)(nil),         // 3: firefly.ManifestProto
+	(*AssetManifestProperty)(nil), // 4: firefly.AssetManifestProperty
+	(*AssetManifestChunk)(nil),    // 5: firefly.AssetManifestChunk
+	(*AssetManifest)(nil),         // 6: firefly.AssetManifest
+}
+var file_proto_firefly_proto_depIdxs = []int32{
+	1, // 0: firefly.ChunkProto.assets:type_name -> firefly.AssetChunkProperty
+	2, // 1: firefly.AssetChunkProperty.asset_chunks:type_name -> firefly.AssetChunk
+	4, // 2: firefly.ManifestProto.assets:type_name -> firefly.AssetManifestProperty
+	5, // 3: firefly.AssetManifestProperty.asset_data:type_name -> firefly.AssetManifestChunk
+	6, // 4: firefly.AssetManifestChunk.assets:type_name -> firefly.AssetManifest
+	5, // [5:5] is the sub-list for method output_type
+	5, // [5:5] is the sub-list for method input_type
+	5, // [5:5] is the sub-list for extension type_name
+	5, // [5:5] is the sub-list for extension extendee
+	0, // [0:5] is the sub-list for field type_name
+}
+
+func init() { file_proto_firefly_proto_init() }
+func file_proto_firefly_proto_init() {
+	if File_proto_firefly_proto != nil {
+		return
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: unsafe.Slice(unsafe.StringData(file_proto_firefly_proto_rawDesc), len(file_proto_firefly_proto_rawDesc)),
+			NumEnums:      0,
+			NumMessages:   7,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_proto_firefly_proto_goTypes,
+		DependencyIndexes: file_proto_firefly_proto_depIdxs,
+		MessageInfos:      file_proto_firefly_proto_msgTypes,
+	}.Build()
+	File_proto_firefly_proto = out.File
+	file_proto_firefly_proto_goTypes = nil
+	file_proto_firefly_proto_depIdxs = nil
+}

pkg/hpatchz/hpatchz.go

@@ -0,0 +1,34 @@
+package hpatchz
+
+import (
+	"g-launcher/pkg/constant"
+	"fmt"
+	"os/exec"
+	"syscall"
+)
+
+func ApplyPatch(oldFile, diffFile, newFile string) error {
+	cmd := exec.Command(constant.ToolHPatchzExe.String(), "-f", oldFile, diffFile, newFile)
+	cmd.SysProcAttr = &syscall.SysProcAttr{HideWindow: true}
+	output, err := cmd.CombinedOutput()
+	if err != nil {
+		return fmt.Errorf("failed to execute hpatchz: %w", err)
+	}
+	if cmd.ProcessState.ExitCode() != 0 {
+		return fmt.Errorf("hpatchz failed: %s", string(output))
+	}
+	return nil
+}
+
+func ApplyPatchEmpty(diffFile, newFile string) error {
+	cmd := exec.Command(constant.ToolHPatchzExe.String(), "-f", "", diffFile, newFile)
+	cmd.SysProcAttr = &syscall.SysProcAttr{HideWindow: true}
+	output, err := cmd.CombinedOutput()
+	if err != nil {
+		return fmt.Errorf("failed to execute hpatchz: %w", err)
+	}
+	if cmd.ProcessState.ExitCode() != 0 {
+		return fmt.Errorf("hpatchz failed: %s", string(output))
+	}
+	return nil
+}

pkg/language-patch/asset-meta/bytehash16.go

@@ -0,0 +1,30 @@
+package assetMeta
+
+import (
+	"fmt"
+	"io"
+)
+
+type ByteHash16 []byte
+
+func ByteHash16FromBytes(r io.ReadSeeker) (ByteHash16, error) {
+	fullHash := make([]byte, 16)
+	buf := make([]byte, 4)
+	for i := 0; i < 4; i++ {
+		if _, err := io.ReadFull(r, buf); err != nil {
+			return nil, err
+		}
+		for j := 0; j < 4; j++ {
+			fullHash[i*4+j] = buf[3-j]
+		}
+	}
+	return ByteHash16(fullHash), nil
+}
+
+func (b ByteHash16) String() string {
+	s := ""
+	for _, v := range b {
+		s += fmt.Sprintf("%02x", v)
+	}
+	return s
+}

pkg/language-patch/asset-meta/dataEntry.go

@@ -0,0 +1,28 @@
+package assetMeta
+
+import (
+	"encoding/binary"
+	"io"
+)
+
+type DataEntry struct {
+	NameHash int32
+	Size     uint32
+	Offset   uint32
+}
+
+func DataEntryFromBytes(r io.Reader) (*DataEntry, error) {
+	var d DataEntry
+
+	if err := binary.Read(r, binary.BigEndian, &d.NameHash); err != nil {
+		return nil, err
+	}
+	if err := binary.Read(r, binary.BigEndian, &d.Size); err != nil {
+		return nil, err
+	}
+	if err := binary.Read(r, binary.BigEndian, &d.Offset); err != nil {
+		return nil, err
+	}
+
+	return &d, nil
+}

pkg/language-patch/asset-meta/designIndex.go

@@ -0,0 +1,98 @@
+package assetMeta
+
+import (
+	"bytes"
+	"encoding/binary"
+	"encoding/hex"
+	"errors"
+	"fmt"
+	"os"
+	"path/filepath"
+)
+
+
+type DesignIndex struct {
+	UnkI64          int64
+	FileCount       int32
+	DesignDataCount int32
+	FileList        []FileEntry
+}
+
+
+
+func (d *DesignIndex) FindDataAndFileByTarget(target int32) (DataEntry, FileEntry, error) {
+	for _, file := range d.FileList {
+		for _, entry := range file.DataEntries {
+			if entry.NameHash == target {
+				return entry, file, nil
+			}
+		}
+	}
+	return DataEntry{}, FileEntry{}, errors.New("not found")
+}
+
+
+func DesignIndexFromBytes(assetFolder string, indexHash string) (*DesignIndex, error) {
+	path := filepath.Join(assetFolder, fmt.Sprintf("DesignV_%s.bytes", indexHash))
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return nil, err
+	}
+	r := bytes.NewReader(data)
+
+	var d DesignIndex
+
+	if err := binary.Read(r, binary.BigEndian, &d.UnkI64); err != nil {
+		return nil, err
+	}
+	if err := binary.Read(r, binary.BigEndian, &d.FileCount); err != nil {
+		return nil, err
+	}
+	if err := binary.Read(r, binary.BigEndian, &d.DesignDataCount); err != nil {
+		return nil, err
+	}
+
+	d.FileList = make([]FileEntry, 0, d.FileCount)
+	for i := int32(0); i < d.FileCount; i++ {
+		entry, err := FileEntryFromBytes(r)
+		if err != nil {
+			return nil, err
+		}
+		d.FileList = append(d.FileList, *entry)
+	}
+
+	return &d, nil
+}
+
+
+func GetIndexHash(assetFolder string) (string, error) {
+	path := filepath.Join(assetFolder, "M_DesignV.bytes")
+
+	f, err := os.Open(path)
+	if err != nil {
+		return "", err
+	}
+	defer f.Close()
+
+	_, err = f.Seek(0x1C, 0)
+	if err != nil {
+		return "", err
+	}
+
+	hash := make([]byte, 0x10)
+	index := 0
+	for i := 0; i < 4; i++ {
+		chunk := make([]byte, 4)
+		_, err := f.Read(chunk)
+		if err != nil {
+			return "", err
+		}
+
+		for bytePos := 3; bytePos >= 0; bytePos-- {
+			hash[index] = chunk[bytePos]
+			index++
+		}
+	}
+
+	return hex.EncodeToString(hash), nil
+}

pkg/language-patch/asset-meta/fileEntry.go

@@ -0,0 +1,63 @@
+package assetMeta
+
+import (
+	"encoding/binary"
+	"fmt"
+	"io"
+)
+
+type FileEntry struct {
+	NameHash       int32
+	FileByteName   string
+	Size           int64
+	DataCount      int32
+	DataEntries    []DataEntry
+	Unk            uint8
+}
+
+func FileEntryFromBytes(r io.Reader) (*FileEntry, error) {
+	var f FileEntry
+
+	if err := binary.Read(r, binary.BigEndian, &f.NameHash); err != nil {
+		return nil, err
+	}
+
+	buf := make([]byte, 16)
+	if _, err := io.ReadFull(r, buf); err != nil {
+		return nil, err
+	}
+	f.FileByteName = toHex(buf)
+
+	if err := binary.Read(r, binary.BigEndian, &f.Size); err != nil {
+		return nil, err
+	}
+	if err := binary.Read(r, binary.BigEndian, &f.DataCount); err != nil {
+		return nil, err
+	}
+
+	f.DataEntries = make([]DataEntry, 0, f.DataCount)
+	for i := int32(0); i < f.DataCount; i++ {
+		entry, err := DataEntryFromBytes(r)
+		if err != nil {
+			return nil, err
+		}
+		f.DataEntries = append(f.DataEntries, *entry)
+	}
+
+	// read 1 byte
+	b := make([]byte, 1)
+	if _, err := r.Read(b); err != nil {
+		return nil, err
+	}
+	f.Unk = b[0]
+
+	return &f, nil
+}
+
+func toHex(buf []byte) string {
+	s := ""
+	for _, b := range buf {
+		s += fmt.Sprintf("%02x", b)
+	}
+	return s
+}

pkg/language-patch/asset-meta/miniAsset.go

@@ -0,0 +1,32 @@
+package assetMeta
+
+import (
+	"encoding/binary"
+	"io"
+)
+
+type MiniAsset struct {
+	RevisionID      uint32
+	DesignIndexHash ByteHash16
+}
+
+func MiniAssetFromBytes(r io.ReadSeeker) (*MiniAsset, error) {
+	if _, err := r.Seek(6*4, io.SeekCurrent); err != nil {
+		return nil, err
+	}
+
+	var revID uint32
+	if err := binary.Read(r, binary.LittleEndian, &revID); err != nil {
+		return nil, err
+	}
+
+	hash, err := ByteHash16FromBytes(r)
+	if err != nil {
+		return nil, err
+	}
+
+	return &MiniAsset{
+		RevisionID:      revID,
+		DesignIndexHash: hash,
+	}, nil
+}

pkg/language-patch/excel-language/patch.go

@@ -0,0 +1,114 @@
+package excelLanguage
+
+import (
+	"bytes"
+	assetMeta "g-launcher/pkg/language-patch/asset-meta"
+	"io"
+	"os"
+	"path/filepath"
+)
+
+type ExcelLanguage struct {
+	AssetFolder    string
+	ExcelDataEntry *assetMeta.DataEntry
+	ExcelFileEntry *assetMeta.FileEntry
+}
+
+func NewExcelLanguage(assetFolder string, dataEntry *assetMeta.DataEntry, fileEntry *assetMeta.FileEntry) *ExcelLanguage {
+	return &ExcelLanguage{
+		AssetFolder:    assetFolder,
+		ExcelDataEntry: dataEntry,
+		ExcelFileEntry: fileEntry,
+	}
+}
+
+func (a *ExcelLanguage) Unmarshal(rows []LanguageRow) ([]byte, error) {
+	buf := new(bytes.Buffer)
+
+	buf.WriteByte(0)
+	if err := writeI8Varint(buf, int8(len(rows))); err != nil {
+		return nil, err
+	}
+
+	for _, row := range rows {
+		rowData, err := row.Unmarshal()
+		if err != nil {
+			return nil, err
+		}
+		if _, err := buf.Write(rowData); err != nil {
+			return nil, err
+		}
+	}
+
+	return buf.Bytes(), nil
+}
+
+func (a *ExcelLanguage) Parse() ([]LanguageRow, error) {
+	excelPath := filepath.Join(a.AssetFolder, a.ExcelFileEntry.FileByteName+".bytes")
+
+	f, err := os.Open(excelPath)
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+
+	if _, err := f.Seek(int64(a.ExcelDataEntry.Offset), io.SeekStart); err != nil {
+		return nil, err
+	}
+
+	buffer := make([]byte, a.ExcelDataEntry.Size)
+	if _, err := io.ReadFull(f, buffer); err != nil {
+		return nil, err
+	}
+
+	reader := bytes.NewReader(buffer)
+
+	_, _ = reader.ReadByte() // skip first byte
+	count, err := readI8Varint(reader)
+	if err != nil {
+		return nil, err
+	}
+
+	rows := make([]LanguageRow, 0, count)
+	for i := 0; i < count; i++ {
+		bitmask, err := reader.ReadByte()
+		if err != nil {
+			return nil, err
+		}
+
+		row := LanguageRow{}
+
+		if bitmask&(1<<0) != 0 {
+			s, err := readString(reader)
+			if err != nil {
+				return nil, err
+			}
+			row.Area = &s
+		}
+		if bitmask&(1<<1) != 0 {
+			t, err := reader.ReadByte()
+			if err != nil {
+				return nil, err
+			}
+			row.Type = &t
+		}
+		if bitmask&(1<<2) != 0 {
+			arr, err := readStringArray(reader)
+			if err != nil {
+				return nil, err
+			}
+			row.LanguageList = arr
+		}
+		if bitmask&(1<<3) != 0 {
+			s, err := readString(reader)
+			if err != nil {
+				return nil, err
+			}
+			row.DefaultLanguage = &s
+		}
+
+		rows = append(rows, row)
+	}
+
+	return rows, nil
+}

pkg/language-patch/excel-language/row.go

@@ -0,0 +1,81 @@
+package excelLanguage
+
+import (
+	"bytes"
+	"errors"
+)
+
+type LanguageRow struct {
+	Area            *string
+	Type            *uint8
+	LanguageList    []string
+	DefaultLanguage *string
+}
+
+func (r *LanguageRow) Unmarshal() ([]byte, error) {
+	buf := new(bytes.Buffer)
+
+	var bitmask uint8
+	if r.Area != nil {
+		bitmask |= 1 << 0
+	}
+	if r.Type != nil {
+		bitmask |= 1 << 1
+	}
+	if len(r.LanguageList) > 0 {
+		bitmask |= 1 << 2
+	}
+	if r.DefaultLanguage != nil {
+		bitmask |= 1 << 3
+	}
+
+	if err := buf.WriteByte(bitmask); err != nil {
+		return nil, err
+	}
+
+	if r.Area != nil {
+		if err := writeString(buf, *r.Area); err != nil {
+			return nil, err
+		}
+	}
+	if r.Type != nil {
+		if err := buf.WriteByte(*r.Type); err != nil {
+			return nil, err
+		}
+	}
+	if len(r.LanguageList) > 0 {
+		if err := writeStringArray(buf, r.LanguageList); err != nil {
+			return nil, err
+		}
+	}
+	if r.DefaultLanguage != nil {
+		if err := writeString(buf, *r.DefaultLanguage); err != nil {
+			return nil, err
+		}
+	}
+
+	return buf.Bytes(), nil
+}
+
+func writeString(buf *bytes.Buffer, s string) error {
+	if len(s) > 255 {
+		return errors.New("string too long")
+	}
+	if err := buf.WriteByte(uint8(len(s))); err != nil {
+		return err
+	}
+	_, err := buf.Write([]byte(s))
+	return err
+}
+
+func writeStringArray(buf *bytes.Buffer, arr []string) error {
+	if err := writeI8Varint(buf, int8(len(arr))); err != nil {
+		return err
+	}
+	for _, s := range arr {
+		if err := writeString(buf, s); err != nil {
+			return err
+		}
+	}
+	return nil
+}

pkg/language-patch/excel-language/utils.go

@@ -0,0 +1,53 @@
+package excelLanguage
+
+import (
+	"bytes"
+	"encoding/binary"
+	"io"
+)
+
+func writeI8Varint(buf *bytes.Buffer, v int8) error {
+	uv := uint64((uint32(v) << 1) ^ uint32(v>>7)) // zigzag encode
+	b := make([]byte, binary.MaxVarintLen64)
+	n := binary.PutUvarint(b, uv)
+	_, err := buf.Write(b[:n])
+	return err
+}
+
+func readI8Varint(r *bytes.Reader) (int, error) {
+	uv, err := binary.ReadUvarint(r)
+	if err != nil {
+		return 0, err
+	}
+	// zigzag decode
+	v := int((uv >> 1) ^ uint64((int64(uv&1)<<63)>>63))
+	return v, nil
+}
+
+func readString(r *bytes.Reader) (string, error) {
+	l, err := r.ReadByte()
+	if err != nil {
+		return "", err
+	}
+	buf := make([]byte, l)
+	if _, err := io.ReadFull(r, buf); err != nil {
+		return "", err
+	}
+	return string(buf), nil
+}
+
+func readStringArray(r *bytes.Reader) ([]string, error) {
+	length, err := readI8Varint(r)
+	if err != nil {
+		return nil, err
+	}
+	arr := make([]string, 0, length)
+	for i := 0; i < length; i++ {
+		s, err := readString(r)
+		if err != nil {
+			return nil, err
+		}
+		arr = append(arr, s)
+	}
+	return arr, nil
+}

pkg/models/binary-version.go

@@ -0,0 +1,61 @@
+package models
+
+import (
+	"errors"
+	"fmt"
+	"os"
+	"regexp"
+	"strconv"
+)
+
+type BinaryVersion struct {
+	Name  string
+	Major int
+	Minor int
+	Patch int
+	Data  []byte
+}
+
+func ParseBinaryVersion(path string) (*BinaryVersion, error) {
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return nil, err
+	}
+
+	content := string(data)
+	fmt.Println(content)
+
+	re := regexp.MustCompile(`([A-Za-z]+)(\d+)(?:\.(\d+))?(?:\.(\d+))?`)
+	matches := re.FindStringSubmatch(content)
+	if len(matches) < 2 {
+		return nil, errors.New("invalid version format")
+	}
+
+	binaryVersion := BinaryVersion{
+		Name: matches[1],
+	}
+	if matches[2] != "" {
+		binaryVersion.Major, _ = strconv.Atoi(matches[2])
+	}
+	if len(matches) > 3 && matches[3] != "" {
+		binaryVersion.Minor, _ = strconv.Atoi(matches[3])
+	}
+	if len(matches) > 4 && matches[4] != "" {
+		binaryVersion.Patch, _ = strconv.Atoi(matches[4])
+	}
+
+	binaryVersion.Data = data
+	return &binaryVersion, nil
+}
+
+func (v *BinaryVersion) String() string {
+	return fmt.Sprintf("%s-%d.%d.%d", v.Name, v.Major, v.Minor, v.Patch)
+}
+
+func (v BinaryVersion) ToInt() int {
+	return v.Major*100 + v.Minor*10 + v.Patch
+}
+
+func (v BinaryVersion) Subtract(other *BinaryVersion) int {
+	return v.ToInt() - other.ToInt()
+}

pkg/models/hdiffFiles.go

@@ -0,0 +1,43 @@
+package models
+
+import (
+	"bufio"
+	"encoding/json"
+	"fmt"
+	"os"
+)
+
+type HDiffFiles struct {
+	RemoteFile string `json:"remoteName"`
+}
+func (h *HDiffFiles) ToHDiffData() *HDiffData {
+	return &HDiffData{
+		SourceFileName: h.RemoteFile,
+		TargetFileName: h.RemoteFile,
+		PatchFileName:  fmt.Sprintf("%s.hdiff", h.RemoteFile),
+	}
+}
+
+func LoadHDiffFiles(path string) ([]*HDiffFiles, error) {
+	file, err := os.Open(path)
+	if err != nil {
+		return nil, err
+	}
+	defer file.Close()
+
+	var results []*HDiffFiles
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		line := scanner.Text()
+		var item HDiffFiles
+		if err := json.Unmarshal([]byte(line), &item); err == nil {
+			results = append(results, &item)
+		}
+	}
+
+	if err := scanner.Err(); err != nil {
+		return nil, err
+	}
+
+	return results, nil
+}

pkg/models/hdiffmap.go

@@ -0,0 +1,29 @@
+package models
+
+type DiffMapType struct {
+	SourceFileName string `json:"source_file_name"`
+	SourceFileMD5  string `json:"source_file_md5"`
+	SourceFileSize int64  `json:"source_file_size"`
+
+	TargetFileName string `json:"target_file_name"`
+	TargetFileMD5  string `json:"target_file_md5"`
+	TargetFileSize int64  `json:"target_file_size"`
+
+	PatchFileName string `json:"patch_file_name"`
+	PatchFileMD5  string `json:"patch_file_md5"`
+	PatchFileSize int64  `json:"patch_file_size"`
+}
+
+type HDiffData struct {
+	SourceFileName string `json:"source_file_name"`
+	TargetFileName string `json:"target_file_name"`
+	PatchFileName  string `json:"patch_file_name"`
+}
+
+func (d *DiffMapType) ToHDiffData() *HDiffData {
+	return &HDiffData{
+		SourceFileName: d.SourceFileName,
+		TargetFileName: d.TargetFileName,
+		PatchFileName:  d.PatchFileName,
+	}
+}

pkg/models/pkgVersion.go

@@ -0,0 +1,36 @@
+package models
+
+import (
+	"bufio"
+	"encoding/json"
+	"os"
+)
+
+type PkgVersion struct {
+	RemoteFile string `json:"remoteName"`
+	MD5        string `json:"md5"`
+}
+
+func LoadPkgVersion(path string) ([]*PkgVersion, error) {
+	file, err := os.Open(path)
+	if err != nil {
+		return nil, err
+	}
+	defer file.Close()
+
+	var results []*PkgVersion
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		line := scanner.Text()
+		var item PkgVersion
+		if err := json.Unmarshal([]byte(line), &item); err == nil {
+			results = append(results, &item)
+		}
+	}
+
+	if err := scanner.Err(); err != nil {
+		return nil, err
+	}
+
+	return results, nil
+}

pkg/models/release.go

@@ -0,0 +1,56 @@
+package models
+
+type ReleaseType struct {
+	ID              int         `json:"id"`
+	TagName         string      `json:"tag_name"`
+	TargetCommitish string      `json:"target_commitish"`
+	Name            string      `json:"name"`
+	Body            string      `json:"body"`
+	URL             string      `json:"url"`
+	HTMLURL         string      `json:"html_url"`
+	TarballURL      string      `json:"tarball_url"`
+	ZipballURL      string      `json:"zipball_url"`
+	UploadURL       string      `json:"upload_url"`
+	Draft           bool        `json:"draft"`
+	Prerelease      bool        `json:"prerelease"`
+	CreatedAt       string      `json:"created_at"`
+	PublishedAt     string      `json:"published_at"`
+	Author          AuthorType  `json:"author"`
+	Assets          []AssetType `json:"assets"`
+}
+
+type AuthorType struct {
+	ID                int    `json:"id"`
+	Login             string `json:"login"`
+	LoginName         string `json:"login_name"`
+	SourceID          int    `json:"source_id"`
+	FullName          string `json:"full_name"`
+	Email             string `json:"email"`
+	AvatarURL         string `json:"avatar_url"`
+	HTMLURL           string `json:"html_url"`
+	Language          string `json:"language"`
+	IsAdmin           bool   `json:"is_admin"`
+	LastLogin         string `json:"last_login"`
+	Created           string `json:"created"`
+	Restricted        bool   `json:"restricted"`
+	Active            bool   `json:"active"`
+	ProhibitLogin     bool   `json:"prohibit_login"`
+	Location          string `json:"location"`
+	Website           string `json:"website"`
+	Description       string `json:"description"`
+	Visibility        string `json:"visibility"`
+	FollowersCount    int    `json:"followers_count"`
+	FollowingCount    int    `json:"following_count"`
+	StarredReposCount int    `json:"starred_repos_count"`
+	Username          string `json:"username"`
+}
+
+type AssetType struct {
+	ID                 int    `json:"id"`
+	Name               string `json:"name"`
+	Size               int    `json:"size"`
+	DownloadCount      int    `json:"download_count"`
+	CreatedAt          string `json:"created_at"`
+	UUID               string `json:"uuid"`
+	BrowserDownloadURL string `json:"browser_download_url"`
+}

pkg/sevenzip/sevenzip.go

@@ -0,0 +1,88 @@
+package sevenzip
+
+import (
+	"bytes"
+	"g-launcher/pkg/constant"
+	"fmt"
+	"os"
+	"os/exec"
+	"strings"
+)
+
+func IsFileIn7z(archivePath, fileInside string) (bool, error) {
+	cmd := exec.Command(constant.Tool7zaExe.String(), "l", archivePath)
+	var out bytes.Buffer
+	cmd.Stdout = &out
+	cmd.Stderr = &out
+
+	if err := cmd.Run(); err != nil {
+		return false, fmt.Errorf("7za list failed: %v\nOutput: %s", err, out.String())
+	}
+
+	lines := strings.Split(out.String(), "\n")
+	for _, line := range lines {
+		line = strings.TrimSpace(line)
+		if line == "" {
+			continue
+		}
+		parts := strings.Fields(line)
+		if len(parts) > 0 {
+			path := parts[len(parts)-1]
+			if path == fileInside {
+				return true, nil
+			}
+		}
+
+	}
+
+	return false, fmt.Errorf("%s not found in %s", fileInside, archivePath)
+}
+
+func ListFilesInZip(archivePath string) ([]string, error) {
+	cmd := exec.Command(constant.Tool7zaExe.String(), "l", archivePath)
+	var out bytes.Buffer
+	cmd.Stdout = &out
+	cmd.Stderr = &out
+
+	if err := cmd.Run(); err != nil {
+		return nil, fmt.Errorf("7za list failed: %v\nOutput: %s", err, out.String())
+	}
+
+	lines := strings.Split(out.String(), "\n")
+	var files []string
+	foundTable := false
+
+	for _, line := range lines {
+		if strings.HasPrefix(line, "----------") {
+			if foundTable {
+				break 
+			}
+			foundTable = true
+			continue
+		}
+
+		if foundTable {
+			fields := strings.Fields(line)
+			if len(fields) >= 6 {
+				fileName := strings.Join(fields[5:], " ")
+				files = append(files, fileName)
+			}
+		}
+	}
+
+	return files, nil
+}
+
+func ExtractAFileFromZip(archivePath, fileInside, outDir string) error {
+	cmd := exec.Command(constant.Tool7zaExe.String(), "e", archivePath, fileInside, "-o"+outDir, "-y")
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+	return cmd.Run()
+}
+
+func ExtractAllFilesFromZip(archivePath, outDir string) error {
+	cmd := exec.Command(constant.Tool7zaExe.String(), "x", archivePath, "-o"+outDir, "-y")
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+	return cmd.Run()
+}

pkg/verifier/verifier.go

@@ -0,0 +1,96 @@
+package verifier
+
+import (
+	"crypto/md5"
+	"encoding/hex"
+	"encoding/json"
+	"g-launcher/pkg/models"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+
+	"github.com/wailsapp/wails/v3/pkg/application"
+)
+
+type Verifier struct {
+	GamePath       string
+	HdiffPath      string
+	DiffMapEntries []*models.DiffMapType
+}
+
+func NewVerifier(gamePath, hdiffPath string) (*Verifier, error) {
+	data, err := os.ReadFile(hdiffPath + "/hdiffmap.json")
+	if err != nil {
+		return nil, err
+	}
+
+	var jsonData struct {
+		DiffMap []*models.DiffMapType `json:"diff_map"`
+	}
+	if err := json.Unmarshal(data, &jsonData); err != nil {
+		return nil, err
+	}
+
+	return &Verifier{
+		GamePath:       gamePath,
+		HdiffPath:      hdiffPath,
+		DiffMapEntries: jsonData.DiffMap,
+	}, nil
+}
+
+func (v *Verifier) VerifyAll() error {
+	for i, entry := range v.DiffMapEntries {
+		application.Get().Event.Emit(
+			"hdiffz:progress", map[string]int{
+				"progress":    i,
+				"maxProgress": len(v.DiffMapEntries),
+			})
+		if err := check(entry.SourceFileName, entry.SourceFileSize, entry.SourceFileMD5, v.GamePath); err != nil {
+			application.Get().Event.Emit("hdiffz:error", err.Error())
+			continue
+		}
+	}
+	return nil
+}
+
+func check(relPath string, expectedSize int64, expectedMD5, base string) error {
+	fullPath := filepath.Join(base, relPath)
+
+	info, err := os.Stat(fullPath)
+	if err != nil {
+		return fmt.Errorf("file not found: %s", fullPath)
+	}
+
+	if info.Size() != expectedSize {
+		return fmt.Errorf("file size mismatch for %s: expected %d, got %d",
+			fullPath, expectedSize, info.Size())
+	}
+
+	md5Hash, err := FileMD5(fullPath)
+	if err != nil {
+		return fmt.Errorf("error reading %s: %w", fullPath, err)
+	}
+
+	if md5Hash != expectedMD5 {
+		return fmt.Errorf("md5 mismatch for %s: expected %s, got %s",
+			fullPath, expectedMD5, md5Hash)
+	}
+
+	return nil
+}
+
+func FileMD5(path string) (string, error) {
+	f, err := os.Open(path)
+	if err != nil {
+		return "", err
+	}
+	defer f.Close()
+
+	h := md5.New()
+	if _, err := io.Copy(h, f); err != nil {
+		return "", err
+	}
+
+	return hex.EncodeToString(h.Sum(nil)), nil
+}