private void ExtractAssetsFromApkToExternalStorage(string apkFilename, List <string> excludePaths = null, bool fromBakFiles = false)
{
UpdateStatus("Extracting assets files from the APK to external storage...");
using (var apk = new ZipFileProvider(apkFilename, FileCacheMode.None, false, QuestomAssets.Utils.FileUtils.GetTempDirectory()))
{
foreach (var assetFilename in apk.FindFiles(APK_ASSETS_PATH + "*"))
{
string relativeFilename = assetFilename.Substring(APK_ASSETS_PATH.Length);
if (excludePaths != null)
{
if (excludePaths.Any(x => relativeFilename.StartsWith(x)))
{
Log.LogMsg($"The asset file {assetFilename} ({relativeFilename}) is not included in assets that should be extracted, skipping.");
continue;
}
}
Log.LogMsg($"Extracting {assetFilename}...");
string targetFile = Path.Combine(Constants.ASSETS_RELOC_PATH, relativeFilename);
string dirName = Path.GetDirectoryName(targetFile);
try
{
if (!Directory.Exists(dirName))
{
Log.LogMsg($"Assets target directory doesn't exist, creating {dirName}");
Directory.CreateDirectory(dirName);
}
}
catch (Exception ex)
{
Log.LogErr($"Unable to create directory {dirName}!", ex);
UpdateStatus("Failed to create assets directory in external storage!");
throw new ModException($"Unable to create directory {dirName}!", ex);
}
try
{
using (var readStream = apk.GetReadStream(assetFilename, true))
{
if (targetFile.EndsWith(".bobak"))
{
targetFile = targetFile.Substring(0, targetFile.Length - 6);
}
using (var fs = File.Open(targetFile, FileMode.Create, FileAccess.Write))
{
readStream.CopyTo(fs);
}
}
if (!assetFilename.EndsWith(".bobak"))
{
apk.Rename(assetFilename, assetFilename + ".bobak");
}
}
catch (Exception ex)
{
Log.LogErr($"Failed to extract {assetFilename} to {targetFile}", ex);
UpdateStatus("Failed extracting an asset from the APK to external storage!");
throw new ModException($"Failed to extract {assetFilename} to {targetFile}", ex);
}
}
apk.Save();
}
}
/// <summary>
/// Checks if the backup exists, or creates a very unideal backup of the modded APK for the sake of uninstalling mods
/// </summary>
public void CheckCreateModdedBackup()
{
try
{
if (File.Exists(Constants.BEATSABER_APK_BACKUP_FILE))
{
return;
}
Log.LogErr("WARNING: backup of original Beat Saber APK does not exist. Will attempt to fall back to a post-mod backup.");
if (File.Exists(Constants.BEATSABER_APK_MODDED_BACKUP_FILE))
{
return;
}
Log.LogErr("Post-modded backup of Beat Saber APK does not exist, will attempt to create one.");
if (!IsBeatSaberInstalled)
{
Log.LogErr("Beat saber isn't even installed. Can't make any sort of backup.");
return;
}
var apkPath = FindBeatSaberApk();
if (apkPath == null)
{
Log.LogErr("Unable to find the installed Beat Saber APK path. Cannot make a post-mod backup.");
return;
}
Log.LogErr("Copying APK for unideal backup...");
try
{
File.Copy(apkPath, Constants.BEATSABER_APK_MODDED_BACKUP_FILE, true);
}
catch (Exception ex)
{
Log.LogErr("Exception trying to copy APK for half assed backup.", ex);
return;
}
try
{
Log.LogErr("Restoring names of modded APK asset files so they can serve as a backup...");
using (var apk = new ZipFileProvider(Constants.BEATSABER_APK_MODDED_BACKUP_FILE, FileCacheMode.None, false, QuestomAssets.Utils.FileUtils.GetTempDirectory()))
{
foreach (var assetFilename in apk.FindFiles(APK_ASSETS_PATH + "*"))
{
if (assetFilename.EndsWith(".bobak"))
{
apk.Rename(assetFilename, assetFilename.Substring(0, assetFilename.Length - 6));
}
}
apk.Save();
}
}
catch (Exception ex)
{
Log.LogErr("Exception trying to make a half assed, post-mod backup while renaming files within the APK", ex);
}
}
catch (Exception ex)
{
Log.LogErr($"Exception trying to check/create backups", ex);
}
}