private string GetFromApkToFile(string apkFileName, string getFilename, string destinationFile = null)
{
string tempFile;
if (destinationFile != null)
{
tempFile = destinationFile;
}
else
{
tempFile = Java.IO.File.CreateTempFile(getFilename, "", _context.ExternalCacheDir).AbsolutePath;
}
using (var apk = new ZipFileProvider(apkFileName, FileCacheMode.None, false, QuestomAssets.Utils.FileUtils.GetTempDirectory()))
{
using (var fs = File.Open(tempFile, FileMode.Create, FileAccess.ReadWrite))
{
using (var readStream = apk.GetReadStream(getFilename, true))
readStream.CopyTo(fs);
}
}
return(tempFile);
}
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();
}
}
