/// <summary>
/// Decompresses a compressed crash report.
/// </summary>
unsafe private bool DecompressReport(string CompressedReportPath, FCompressedCrashInformation Meta)
{
string ReportPath = Path.GetDirectoryName(CompressedReportPath);
using (FileStream FileStream = File.OpenRead(CompressedReportPath))
{
Int32 UncompressedSize = Meta.GetUncompressedSize();
Int32 CompressedSize = Meta.GetCompressedSize();
if (FileStream.Length != CompressedSize)
{
return(false);
}
byte[] UncompressedBufferArray = new byte[UncompressedSize];
byte[] CompressedBufferArray = new byte[CompressedSize];
FileStream.Read(CompressedBufferArray, 0, CompressedSize);
fixed(byte *UncompressedBufferPtr = UncompressedBufferArray, CompressedBufferPtr = CompressedBufferArray)
{
bool bResult = UE4UncompressMemoryZLIB((IntPtr)UncompressedBufferPtr, UncompressedSize, (IntPtr)CompressedBufferPtr, CompressedSize);
if (!bResult)
{
CrashReporterProcessServicer.WriteFailure("! ZLibFail: Path=" + ReportPath);
return(false);
}
}
MemoryStream MemoryStream = new MemoryStream(UncompressedBufferArray, false);
BinaryReader BinaryData = new BinaryReader(MemoryStream);
for (int FileIndex = 0; FileIndex < Meta.GetNumberOfFiles(); FileIndex++)
{
Int32 CurrentFileIndex = BinaryData.ReadInt32();
if (CurrentFileIndex != FileIndex)
{
CrashReporterProcessServicer.WriteFailure("! ReadFail: Required=" + FileIndex + " Read=" + CurrentFileIndex);
return(false);
}
string Filename = FBinaryReaderHelper.ReadFixedSizeString(BinaryData);
Int32 FiledataLength = BinaryData.ReadInt32();
byte[] Filedata = BinaryData.ReadBytes(FiledataLength);
File.WriteAllBytes(Path.Combine(ReportPath, Filename), Filedata);
}
}
return(true);
}
/// <summary>
/// Decompresses a compressed crash report.
/// </summary>
unsafe static protected bool DecompressReport(string CompressedReportPath, FCompressedCrashInformation Meta)
{
string ReportPath = Path.GetDirectoryName(CompressedReportPath);
using (FileStream FileStream = File.OpenRead(CompressedReportPath))
{
Int32 UncompressedSize = Meta.GetUncompressedSize();
Int32 CompressedSize = Meta.GetCompressedSize();
if (FileStream.Length != CompressedSize)
{
return(false);
}
byte[] UncompressedBufferArray = new byte[UncompressedSize];
byte[] CompressedBufferArray = new byte[CompressedSize];
FileStream.Read(CompressedBufferArray, 0, CompressedSize);
fixed(byte *UncompressedBufferPtr = UncompressedBufferArray, CompressedBufferPtr = CompressedBufferArray)
{
Int32 UncompressResult = NativeMethods.UE4UncompressMemoryZLIB((IntPtr)UncompressedBufferPtr, UncompressedSize, (IntPtr)CompressedBufferPtr, CompressedSize);
if (UncompressResult < 0)
{
CrashReporterProcessServicer.WriteFailure("! DecompressReport() failed in UE4UncompressMemoryZLIB() with " + NativeMethods.GetUncompressError(UncompressResult));
CrashReporterProcessServicer.WriteFailure("! ZLibFail in DecompressReport(): Path=" + ReportPath);
return(false);
}
}
using (BinaryReader BinaryData = new BinaryReader(new MemoryStream(UncompressedBufferArray, false)))
{
for (int FileIndex = 0; FileIndex < Meta.GetNumberOfFiles(); FileIndex++)
{
if (!WriteIncomingFile(BinaryData, FileIndex, ReportPath))
{
CrashReporterProcessServicer.WriteFailure("! DecompressReport() failed to write file index " + FileIndex + " Path=" + ReportPath);
return(false);
}
}
}
}
return(true);
}
