251 lines
8.4 KiB
Go
251 lines
8.4 KiB
Go
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package languageService
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import (
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"bytes"
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"encoding/binary"
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"encoding/hex"
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"errors"
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"fmt"
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"io"
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"os"
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"path/filepath"
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"sort"
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"strings"
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)
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const (
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betaPersistentContainer = "79568e2a754e3eab8afe4b5bf96c27ab.bytes"
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betaPersistentContainerCopy = "e303f4dc6c21f043021bb5b3b875b6c3.bytes"
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betaStreamingContainer = "4703a1942cfa452f451ba0a2f826b764.bytes"
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betaStreamingContainerCopy = "44b594f1fab938d6ed95d6a1154e03c0.bytes"
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betaPersistentDesignV = "878d1fefee5f49221b003050cb4a2d2f"
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betaPersistentDesignVCopy = "74b62fb914b36cccaa10d93ace9af2c0"
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betaStreamingDesignV = "b5eefe4a429b498a8f5003f28a4b21c6"
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betaStreamingDesignVCopy = "3ada95b84a1e0d96404ea5e7414ab353"
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betaPersistentContainerLimit = 26240102
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betaStreamingContainerLimit = 73631
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)
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func (l *LanguageService) InstallThaiPatch(gameRoot, packageRoot string) (bool, string) {
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gameRoot, err := filepath.Abs(filepath.Clean(gameRoot))
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if err != nil {
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return false, fmt.Errorf("resolve game folder: %w", err).Error()
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}
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packageRoot, err = filepath.Abs(filepath.Clean(packageRoot))
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if err != nil {
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return false, fmt.Errorf("resolve patch package folder: %w", err).Error()
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}
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if _, err := os.Stat(filepath.Join(gameRoot, "StarRail.exe")); err != nil {
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return false, "selected folder does not contain StarRail.exe"
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}
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streamingAssets := filepath.Join(gameRoot, "StarRail_Data", "StreamingAssets")
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binaryVersion, err := os.ReadFile(filepath.Join(streamingAssets, "BinaryVersion.bytes"))
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if err != nil {
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return false, fmt.Errorf("read game version: %w", err).Error()
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}
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if !bytes.Contains(binaryVersion, []byte("BETAWin")) {
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return false, "this Thai patch package only supports Honkai: Star Rail Beta"
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}
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assets := filepath.Join(packageRoot, "assets")
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readAsset := func(relative string) ([]byte, error) {
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data, err := os.ReadFile(filepath.Join(assets, filepath.FromSlash(relative)))
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if err != nil {
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return nil, fmt.Errorf("read patch asset %s: %w", relative, err)
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}
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return data, nil
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}
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requireAsset := func(relative string) ([]byte, error) {
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data, err := readAsset(relative)
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if err != nil {
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return nil, err
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}
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if len(data) == 0 {
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return nil, fmt.Errorf("patch asset %s is empty", relative)
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}
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return data, nil
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}
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textMap, err := requireAsset("1_TextMap_th/1fb7b1dce8d66efe8e111bb07a3eef44.bytes")
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if err != nil {
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return false, err.Error()
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}
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persistentUI, err := requireAsset("2_UI_Persistent/fd5227547d65b8bb1238feb3e5820fa3.bytes")
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if err != nil {
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return false, err.Error()
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}
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streamingUI, err := requireAsset("3_UI_StreamingAssets/2ea44f7fabf315d35de1d7f3b4c07d89.bytes")
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if err != nil {
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return false, err.Error()
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}
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localePack, err := requireAsset("4_Locale_Pak/th.pak")
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if err != nil {
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return false, err.Error()
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}
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allowedLanguages, err := requireAsset("5_AllowedLanguage/allowed_language_140bytes.bin")
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if err != nil {
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return false, err.Error()
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}
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persistentDesign, err := requireAsset("prebuilt_designv/DesignV_" + betaPersistentDesignV + ".bytes")
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if err != nil {
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return false, err.Error()
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}
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streamingDesign, err := requireAsset("prebuilt_designv/DesignV_" + betaStreamingDesignV + ".bytes")
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if err != nil {
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return false, err.Error()
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}
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dataRoot := filepath.Join(gameRoot, "StarRail_Data")
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persistentDesignDir := filepath.Join(dataRoot, "Persistent", "DesignData", "Windows")
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streamingDesignDir := filepath.Join(dataRoot, "StreamingAssets", "DesignData", "Windows")
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for _, dir := range []string{
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filepath.Join(dataRoot, "Persistent", "Asb", "Windows"),
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filepath.Join(dataRoot, "Persistent", "Audio", "AudioPackage", "Windows"),
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persistentDesignDir,
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filepath.Join(dataRoot, "StreamingAssets", "Asb", "Windows"),
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streamingDesignDir,
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} {
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if err := os.MkdirAll(dir, 0755); err != nil {
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return false, fmt.Errorf("create patch folder %s: %w", dir, err).Error()
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}
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}
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type fileWrite struct {
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path string
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data []byte
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}
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writes := []fileWrite{
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{filepath.Join(dataRoot, "Persistent", "Asb", "Windows", "1fb7b1dce8d66efe8e111bb07a3eef44.bytes"), textMap},
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{filepath.Join(dataRoot, "Persistent", "Asb", "Windows", "fd5227547d65b8bb1238feb3e5820fa3.bytes"), persistentUI},
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{filepath.Join(dataRoot, "StreamingAssets", "Asb", "Windows", "2ea44f7fabf315d35de1d7f3b4c07d89.bytes"), streamingUI},
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{filepath.Join(dataRoot, "Persistent", "Audio", "AudioPackage", "Windows", "th.pak"), localePack},
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{filepath.Join(persistentDesignDir, "DesignV_"+betaPersistentDesignV+".bytes"), persistentDesign},
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{filepath.Join(persistentDesignDir, "DesignV_"+betaPersistentDesignVCopy+".bytes"), persistentDesign},
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{filepath.Join(streamingDesignDir, "DesignV_"+betaStreamingDesignV+".bytes"), streamingDesign},
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{filepath.Join(streamingDesignDir, "DesignV_"+betaStreamingDesignVCopy+".bytes"), streamingDesign},
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}
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for _, write := range writes {
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if err := os.WriteFile(write.path, write.data, 0644); err != nil {
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return false, fmt.Errorf("save patch file %s: %w", write.path, err).Error()
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}
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}
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if err := patchContainerFile(filepath.Join(persistentDesignDir, betaPersistentContainer), persistentDesign, betaPersistentContainerLimit); err != nil {
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return false, err.Error()
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}
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if err := patchContainerFile(filepath.Join(persistentDesignDir, betaPersistentContainerCopy), persistentDesign, betaPersistentContainerLimit); err != nil {
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return false, err.Error()
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}
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if err := patchContainerFile(filepath.Join(streamingDesignDir, betaStreamingContainer), streamingDesign, betaStreamingContainerLimit); err != nil {
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return false, err.Error()
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}
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if err := patchContainerFile(filepath.Join(streamingDesignDir, betaStreamingContainerCopy), streamingDesign, betaStreamingContainerLimit); err != nil {
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return false, err.Error()
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}
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if err := patchAllowedLanguages(filepath.Join(dataRoot, "Persistent", "AllowedLanguage.bytes"), allowedLanguages); err != nil {
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return false, err.Error()
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}
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return true, ""
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}
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func patchContainerFile(path string, targetPayload []byte, sizeLimit int64) error {
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data, err := os.ReadFile(path)
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if errors.Is(err, os.ErrNotExist) {
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return nil
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}
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if err != nil {
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return fmt.Errorf("read container %s: %w", path, err)
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}
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if int64(len(data)) > sizeLimit {
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return fmt.Errorf("container file is unexpectedly large: %s", path)
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}
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entries, err := parseDesignVContainer(data)
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if err != nil {
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return fmt.Errorf("parse container %s: %w", path, err)
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}
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for i := range entries {
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entries[i].payload = append([]byte(nil), targetPayload...)
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}
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rebuilt, err := buildDesignVContainer(entries)
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if err != nil {
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return fmt.Errorf("rebuild container %s: %w", path, err)
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}
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if err := os.WriteFile(path, rebuilt, 0644); err != nil {
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return fmt.Errorf("save container %s: %w", path, err)
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}
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return nil
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}
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type containerEntry struct {
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hash string
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payload []byte
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}
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func parseDesignVContainer(data []byte) ([]containerEntry, error) {
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if len(data) < 4 {
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return nil, fmt.Errorf("container is too short")
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}
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reader := bytes.NewReader(data)
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var count uint32
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if err := binary.Read(reader, binary.LittleEndian, &count); err != nil {
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return nil, err
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}
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entries := make([]containerEntry, 0, count)
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for i := uint32(0); i < count; i++ {
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var hashBytes [16]byte
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if _, err := io.ReadFull(reader, hashBytes[:]); err != nil {
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return nil, err
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}
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var length uint32
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if err := binary.Read(reader, binary.LittleEndian, &length); err != nil {
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return nil, err
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}
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payload := make([]byte, length)
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if _, err := io.ReadFull(reader, payload); err != nil {
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return nil, err
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}
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entries = append(entries, containerEntry{
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hash: hex.EncodeToString(hashBytes[:]),
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payload: payload,
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})
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}
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return entries, nil
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}
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func buildDesignVContainer(entries []containerEntry) ([]byte, error) {
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sort.Slice(entries, func(i, j int) bool {
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return strings.ToLower(entries[i].hash) < strings.ToLower(entries[j].hash)
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})
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var buffer bytes.Buffer
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if err := binary.Write(&buffer, binary.LittleEndian, uint32(len(entries))); err != nil {
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return nil, err
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}
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for _, entry := range entries {
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rawHash, err := hex.DecodeString(entry.hash)
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if err != nil || len(rawHash) != 16 {
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return nil, fmt.Errorf("invalid hash in container entry: %s", entry.hash)
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}
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if _, err := buffer.Write(rawHash); err != nil {
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return nil, err
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}
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if err := binary.Write(&buffer, binary.LittleEndian, uint32(len(entry.payload))); err != nil {
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return nil, err
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}
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if _, err := buffer.Write(entry.payload); err != nil {
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return nil, err
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}
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}
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return buffer.Bytes(), nil
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}
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func patchAllowedLanguages(path string, payload []byte) error {
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return os.WriteFile(path, payload, 0644)
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}
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