Пример #1
0
        private int CheckSumRead(Stream inStream, FileResults fileResults, ulong totalSize, bool testcrc, bool testDeep)
        {
            if (_buffer0 == null)
            {
                _buffer0 = new byte[Buffersize];
                _buffer1 = new byte[Buffersize];
            }

            fileResults.MD5  = null;
            fileResults.SHA1 = null;
            fileResults.CRC  = null;

            ThreadReadBuffer lbuffer = null;

            ThreadCRC  tcrc32 = null;
            ThreadMD5  tmd5   = null;
            ThreadSHA1 tsha1  = null;

            ThreadCRC  altCrc32 = null;
            ThreadMD5  altMd5   = null;
            ThreadSHA1 altSha1  = null;

            try
            {
                int  maxHeaderSize = 128;
                long sizetogo      = (long)totalSize;
                int  sizenow       = maxHeaderSize < sizetogo ? maxHeaderSize : (int)sizetogo;
                if (sizenow > 0)
                {
                    inStream.Read(_buffer0, 0, sizenow);
                }

                fileResults.HeaderFileType = FileHeaderReader.GetType(_buffer0, sizenow, out int actualHeaderSize);


                // if the file has no header then just use the main hash checkers.
                if (fileResults.HeaderFileType == HeaderFileType.Nothing || actualHeaderSize == 0)
                {
                    // no header found & not reading hashes.
                    if (!(testcrc || testDeep))
                    {
                        return(0);
                    }

                    // no header found so just push the initial buffer read into the hash checkers.
                    // and then continue with the rest of the file.
                    tcrc32 = new ThreadCRC();
                    if (testDeep)
                    {
                        tmd5  = new ThreadMD5();
                        tsha1 = new ThreadSHA1();
                    }
                    tcrc32.Trigger(_buffer0, sizenow);
                    tmd5?.Trigger(_buffer0, sizenow);
                    tsha1?.Trigger(_buffer0, sizenow);
                    tcrc32.Wait();
                    tmd5?.Wait();
                    tsha1?.Wait();

                    sizetogo -= sizenow;
                }
                else
                {
                    // header found
                    fileResults.AltSize = (ulong)((long)totalSize - actualHeaderSize);
                    //setup main hash checkers
                    if (testcrc || testDeep)
                    {
                        tcrc32 = new ThreadCRC();
                    }

                    altCrc32 = new ThreadCRC();
                    if (testDeep)
                    {
                        tmd5    = new ThreadMD5();
                        tsha1   = new ThreadSHA1();
                        altMd5  = new ThreadMD5();
                        altSha1 = new ThreadSHA1();
                    }

                    if (sizenow > actualHeaderSize)
                    {
                        // Already read more than the header, so we need to split what we read into the 2 hash checkers

                        // first scan the header part from what we have already read.
                        // scan what we read so far with just the main hashers
                        tcrc32?.Trigger(_buffer0, actualHeaderSize);
                        tmd5?.Trigger(_buffer0, actualHeaderSize);
                        tsha1?.Trigger(_buffer0, actualHeaderSize);
                        tcrc32?.Wait();
                        tmd5?.Wait();
                        tsha1?.Wait();

                        // put the rest of what we read into the second buffer, and scan with all hashers
                        int restSize = sizenow - actualHeaderSize;
                        for (int i = 0; i < restSize; i++)
                        {
                            _buffer1[i] = _buffer0[actualHeaderSize + i];
                        }
                        tcrc32?.Trigger(_buffer1, restSize);
                        tmd5?.Trigger(_buffer1, restSize);
                        tsha1?.Trigger(_buffer1, restSize);
                        altCrc32.Trigger(_buffer1, restSize);
                        altMd5?.Trigger(_buffer1, restSize);
                        altSha1?.Trigger(_buffer1, restSize);

                        tcrc32?.Wait();
                        tmd5?.Wait();
                        tsha1?.Wait();
                        altCrc32.Wait();
                        altMd5?.Wait();
                        altSha1?.Wait();

                        sizetogo -= sizenow;
                    }
                    else
                    {
                        // Read less than the length of the header so read the rest of the header.
                        // then continue to reader the full rest of the file.

                        // scan what we read so far
                        tcrc32?.Trigger(_buffer0, sizenow);
                        tmd5?.Trigger(_buffer0, sizenow);
                        tsha1?.Trigger(_buffer0, sizenow);
                        tcrc32?.Wait();
                        tmd5?.Wait();
                        tsha1?.Wait();

                        sizetogo -= sizenow;

                        // now read the rest of the header.
                        sizenow = actualHeaderSize - sizenow;
                        inStream.Read(_buffer0, 0, sizenow);

                        // scan the rest of the header
                        tcrc32?.Trigger(_buffer0, sizenow);
                        tmd5?.Trigger(_buffer0, sizenow);
                        tsha1?.Trigger(_buffer0, sizenow);
                        tcrc32?.Wait();
                        tmd5?.Wait();
                        tsha1?.Wait();

                        sizetogo -= sizenow;
                    }
                }

                lbuffer = new ThreadReadBuffer(inStream);

                // Pre load the first buffer0
                int sizeNext = sizetogo > Buffersize ? Buffersize : (int)sizetogo;
                if (sizeNext > 0)
                {
                    inStream.Read(_buffer0, 0, sizeNext);
                }

                int sizebuffer = sizeNext;
                sizetogo -= sizeNext;
                bool whichBuffer = true;

                while (sizebuffer > 0 && !lbuffer.errorState)
                {
                    sizeNext = sizetogo > Buffersize ? Buffersize : (int)sizetogo;

                    if (sizeNext > 0)
                    {
                        lbuffer.Trigger(whichBuffer ? _buffer1 : _buffer0, sizeNext);
                    }

                    byte[] buffer = whichBuffer ? _buffer0 : _buffer1;
                    tcrc32?.Trigger(buffer, sizebuffer);
                    tmd5?.Trigger(buffer, sizebuffer);
                    tsha1?.Trigger(buffer, sizebuffer);

                    altCrc32?.Trigger(buffer, sizebuffer);
                    altMd5?.Trigger(buffer, sizebuffer);
                    altSha1?.Trigger(buffer, sizebuffer);


                    if (sizeNext > 0)
                    {
                        lbuffer.Wait();
                    }
                    tcrc32?.Wait();
                    tmd5?.Wait();
                    tsha1?.Wait();
                    altCrc32?.Wait();
                    altMd5?.Wait();
                    altSha1?.Wait();

                    sizebuffer  = sizeNext;
                    sizetogo   -= sizeNext;
                    whichBuffer = !whichBuffer;
                }

                lbuffer.Finish();
                tcrc32?.Finish();
                tmd5?.Finish();
                tsha1?.Finish();
                altCrc32?.Finish();
                altMd5?.Finish();
                altSha1?.Finish();
            }
            catch
            {
                lbuffer?.Dispose();
                tcrc32?.Dispose();
                tmd5?.Dispose();
                tsha1?.Dispose();
                altCrc32?.Dispose();
                altMd5?.Dispose();
                altSha1?.Dispose();

                return(0x17); // need to remember what this number is for
            }

            if (lbuffer.errorState)
            {
                lbuffer.Dispose();
                tcrc32?.Dispose();
                tmd5?.Dispose();
                tsha1?.Dispose();
                altCrc32?.Dispose();
                altMd5?.Dispose();
                altSha1?.Dispose();

                return(0x17); // need to remember what this number is for
            }

            fileResults.CRC     = tcrc32?.Hash;
            fileResults.SHA1    = tsha1?.Hash;
            fileResults.MD5     = tmd5?.Hash;
            fileResults.AltCRC  = altCrc32?.Hash;
            fileResults.AltSHA1 = altSha1?.Hash;
            fileResults.AltMD5  = altMd5?.Hash;

            lbuffer.Dispose();
            tcrc32?.Dispose();
            tmd5?.Dispose();
            tsha1?.Dispose();
            altCrc32?.Dispose();
            altMd5?.Dispose();
            altSha1?.Dispose();

            return(0);
        }
Пример #2
0
        private ZipReturn ReadBody(bool deepScan)
        {
            using (BinaryReader zipBr = new BinaryReader(_zipFs, Encoding.UTF8, true))
            {
                byte ID1 = zipBr.ReadByte();
                byte ID2 = zipBr.ReadByte();

                if ((ID1 != 0x1f) || (ID2 != 0x8b))
                {
                    _zipFs.Close();
                    return(ZipReturn.ZipSignatureError);
                }

                byte CM = zipBr.ReadByte();
                if (CM != 8)
                {
                    _zipFs.Close();
                    return(ZipReturn.ZipUnsupportedCompression);
                }

                byte FLG = zipBr.ReadByte();


                uint MTime = zipBr.ReadUInt32();
                byte XFL   = zipBr.ReadByte();
                byte OS    = zipBr.ReadByte();

                //if FLG.FEXTRA set
                if ((FLG & 0x4) == 0x4)
                {
                    int    XLen  = zipBr.ReadInt16();
                    byte[] bytes = zipBr.ReadBytes(XLen);

                    if (XLen == 28)
                    {
                        md5Hash = new byte[16];
                        Array.Copy(bytes, 0, md5Hash, 0, 16);
                        crc = new byte[4];
                        Array.Copy(bytes, 16, crc, 0, 4);
                        uncompressedSize = BitConverter.ToUInt64(bytes, 20);
                    }

                    if (XLen == 77)
                    {
                        md5Hash = new byte[16];
                        Array.Copy(bytes, 0, md5Hash, 0, 16);
                        crc = new byte[4];
                        Array.Copy(bytes, 16, crc, 0, 4);
                        uncompressedSize = BitConverter.ToUInt64(bytes, 20);
                        altType          = (HeaderFileType)bytes[28];
                        altmd5Hash       = new byte[16];
                        Array.Copy(bytes, 29, altmd5Hash, 0, 16);
                        altsha1Hash = new byte[20];
                        Array.Copy(bytes, 45, altsha1Hash, 0, 20);
                        altcrc = new byte[4];
                        Array.Copy(bytes, 65, altcrc, 0, 4);
                        uncompressedAltSize = BitConverter.ToUInt64(bytes, 69);
                    }
                }

                //if FLG.FNAME set
                if ((FLG & 0x8) == 0x8)
                {
                    int    XLen  = zipBr.ReadInt16();
                    byte[] bytes = zipBr.ReadBytes(XLen);
                }

                //if FLG.FComment set
                if ((FLG & 0x10) == 0x10)
                {
                    int    XLen  = zipBr.ReadInt16();
                    byte[] bytes = zipBr.ReadBytes(XLen);
                }

                //if FLG.FHCRC set
                if ((FLG & 0x2) == 0x2)
                {
                    uint crc16 = zipBr.ReadUInt16();
                }
            }

            compressedSize = (ulong)(_zipFs.Length - _zipFs.Position) - 8;

            datapos = _zipFs.Position;
            if (deepScan)
            {
                if (Buffer0 == null)
                {
                    Buffer0 = new byte[Buffersize];
                }

                if (Buffer1 == null)
                {
                    Buffer1 = new byte[Buffersize];
                }

                Stream ds = new ZlibBaseStream(_zipFs, CompressionMode.Decompress, CompressionLevel.Default, ZlibStreamFlavor.DEFLATE, true);

                ThreadLoadBuffer lbuffer = new ThreadLoadBuffer(ds);

                ThreadCRC  crc32 = new ThreadCRC();
                ThreadMD5  md5   = new ThreadMD5();
                ThreadSHA1 sha1  = new ThreadSHA1();

                ulong uncompressedRead = 0;
                int   bufferRead       = ds.Read(Buffer0, 0, Buffersize);
                uncompressedRead += (ulong)bufferRead;
                bool whichBuffer = true;

                while (bufferRead > 0)
                {
                    // trigger the buffer loading worker
                    lbuffer.Trigger(whichBuffer ? Buffer1 : Buffer0, Buffersize);

                    byte[] buffer = whichBuffer ? Buffer0 : Buffer1;

                    // trigger the hashing workers
                    crc32.Trigger(buffer, bufferRead);
                    md5.Trigger(buffer, bufferRead);
                    sha1.Trigger(buffer, bufferRead);

                    lbuffer.Wait();
                    crc32.Wait();
                    md5.Wait();
                    sha1.Wait();

                    // setup next loop around
                    bufferRead        = lbuffer.SizeRead;
                    uncompressedRead += (ulong)bufferRead;
                    whichBuffer       = !whichBuffer;
                }

                // tell all the workers we are finished
                lbuffer.Finish();
                crc32.Finish();
                md5.Finish();
                sha1.Finish();

                // get the results
                byte[] testcrc  = crc32.Hash;
                byte[] testmd5  = md5.Hash;
                byte[] testsha1 = sha1.Hash;

                // cleanup
                lbuffer.Dispose();
                crc32.Dispose();
                md5.Dispose();
                sha1.Dispose();

                ds.Close();
                ds.Dispose();

                if (uncompressedSize != 0)
                {
                    if (uncompressedSize != uncompressedRead)
                    {
                        _zipFs.Close();
                        return(ZipReturn.ZipDecodeError);
                    }
                }
                else
                {
                    uncompressedSize = uncompressedRead;
                }

                if (crc != null)
                {
                    for (int i = 0; i < 4; i++)
                    {
                        if (crc[i] == testcrc[i])
                        {
                            continue;
                        }

                        _zipFs.Close();
                        return(ZipReturn.ZipDecodeError);
                    }
                }
                else
                {
                    crc = testcrc;
                }

                if (md5Hash != null)
                {
                    for (int i = 0; i < 16; i++)
                    {
                        if (md5Hash[i] == testmd5[i])
                        {
                            continue;
                        }

                        _zipFs.Close();
                        return(ZipReturn.ZipDecodeError);
                    }
                }
                else
                {
                    md5Hash = testmd5;
                }

                if (sha1Hash != null)
                {
                    for (int i = 0; i < 20; i++)
                    {
                        if (sha1Hash[i] == testsha1[i])
                        {
                            continue;
                        }

                        _zipFs.Close();
                        return(ZipReturn.ZipDecodeError);
                    }
                }
                else
                {
                    sha1Hash = testsha1;
                }
            }

            _zipFs.Position = _zipFs.Length - 8;
            byte[] gzcrc;
            uint   gzLength;

            using (BinaryReader zipBr = new BinaryReader(_zipFs, Encoding.UTF8, true))
            {
                gzcrc    = zipBr.ReadBytes(4);
                gzLength = zipBr.ReadUInt32();
            }

            if (crc != null)
            {
                for (int i = 0; i < 4; i++)
                {
                    if (gzcrc[3 - i] == crc[i])
                    {
                        continue;
                    }

                    _zipFs.Close();
                    return(ZipReturn.ZipDecodeError);
                }
            }
            else
            {
                crc = new[] { gzcrc[3], gzcrc[2], gzcrc[1], gzcrc[0] };
            }

            if (uncompressedSize != 0)
            {
                if (gzLength != (uncompressedSize & 0xffffffff))
                {
                    _zipFs.Close();
                    return(ZipReturn.ZipDecodeError);
                }
            }

            return(ZipReturn.ZipGood);
        }
Пример #3
0
        public static int CheckSumRead(string filename, bool testDeep, out byte[] crc, out byte[] bMD5, out byte[] bSHA1)
        {
            bMD5  = null;
            bSHA1 = null;
            crc   = null;

            Stream           ds      = null;
            ThreadLoadBuffer lbuffer = null;
            ThreadCRC        tcrc32  = null;
            ThreadMD5        tmd5    = null;
            ThreadSHA1       tsha1   = null;

            try
            {
                int errorCode = FileStream.OpenFileRead(filename, out ds);
                if (errorCode != 0)
                {
                    return(errorCode);
                }

                lbuffer = new ThreadLoadBuffer(ds);
                tcrc32  = new ThreadCRC();
                if (testDeep)
                {
                    tmd5  = new ThreadMD5();
                    tsha1 = new ThreadSHA1();
                }

                long sizetogo = ds.Length;

                // Pre load the first buffer0
                int sizeNext = sizetogo > Buffersize ? Buffersize : (int)sizetogo;
                ds.Read(Buffer0, 0, sizeNext);
                int sizebuffer = sizeNext;
                sizetogo -= sizeNext;
                bool whichBuffer = true;

                while ((sizebuffer > 0) && !lbuffer.errorState)
                {
                    sizeNext = sizetogo > Buffersize ? Buffersize : (int)sizetogo;

                    if (sizeNext > 0)
                    {
                        lbuffer.Trigger(whichBuffer ? Buffer1 : Buffer0, sizeNext);
                    }

                    byte[] buffer = whichBuffer ? Buffer0 : Buffer1;
                    tcrc32.Trigger(buffer, sizebuffer);
                    tmd5?.Trigger(buffer, sizebuffer);
                    tsha1?.Trigger(buffer, sizebuffer);

                    if (sizeNext > 0)
                    {
                        lbuffer.Wait();
                    }
                    tcrc32.Wait();
                    tmd5?.Wait();
                    tsha1?.Wait();

                    sizebuffer  = sizeNext;
                    sizetogo   -= sizeNext;
                    whichBuffer = !whichBuffer;
                }

                lbuffer.Finish();
                tcrc32.Finish();
                tmd5?.Finish();
                tsha1?.Finish();

                ds.Close();
            }
            catch
            {
                ds?.Close();
                lbuffer?.Dispose();
                tcrc32?.Dispose();
                tmd5?.Dispose();
                tsha1?.Dispose();

                return(0x17); // need to remember what this number is for
            }

            if (lbuffer.errorState)
            {
                ds?.Close();
                lbuffer?.Dispose();
                tcrc32?.Dispose();
                tmd5?.Dispose();
                tsha1?.Dispose();

                return(0x17); // need to remember what this number is for
            }

            crc = tcrc32.Hash;
            if (testDeep)
            {
                bMD5  = tmd5.Hash;
                bSHA1 = tsha1.Hash;
            }

            lbuffer.Dispose();
            tcrc32.Dispose();
            tmd5?.Dispose();
            tsha1?.Dispose();

            return(0);
        }
Пример #4
0
        public static ReturnCode DecompressSource7ZipFile(RvFile zZipFileIn, bool includeGood, out string error)
        {
            byte[] buffer = new byte[BufferSize];

            RvFile cacheDir = DB.RvFileCache();

            string fileNameIn = zZipFileIn.FullName;

            SevenZ    zipFileIn = new SevenZ();
            ZipReturn zr1       = zipFileIn.ZipFileOpen(fileNameIn, zZipFileIn.TimeStamp, true);

            if (zr1 != ZipReturn.ZipGood)
            {
                error = "Error opening 7zip file for caching";
                return(ReturnCode.RescanNeeded);
            }

            RvFile outDir = new RvFile(FileType.Dir)
            {
                Name      = zZipFileIn.Name + ".cache",
                Parent    = cacheDir,
                DatStatus = DatStatus.InToSort,
                GotStatus = GotStatus.Got
            };

            int nameDirIndex = 0;

            while (cacheDir.ChildNameSearch(outDir, out int index) == 0)
            {
                nameDirIndex++;
                outDir.Name = zZipFileIn.Name + ".cache (" + nameDirIndex + ")";
            }
            cacheDir.ChildAdd(outDir);
            Directory.CreateDirectory(outDir.FullName);

            for (int i = 0; i < zipFileIn.LocalFilesCount(); i++)
            {
                if (zZipFileIn.Child(i).IsDir)
                {
                    continue;
                }
                RvFile thisFile = null;
                for (int j = 0; j < zZipFileIn.ChildCount; j++)
                {
                    if (zZipFileIn.Child(j).ZipFileIndex != i)
                    {
                        continue;
                    }
                    thisFile = zZipFileIn.Child(j);
                    break;
                }

                if (thisFile == null)
                {
                    error = "Error opening 7zip file for caching";
                    return(ReturnCode.RescanNeeded);
                }

                bool extract = true;

                // first check to see if we have a file  version of this compressed file somewhere else.
                foreach (RvFile f in thisFile.FileGroup.Files)
                {
                    if (f.FileType == FileType.File && f.GotStatus == GotStatus.Got)
                    {
                        extract = false;
                    }
                }
                if (!extract)
                {
                    continue;
                }


                extract = false;
                if (includeGood)
                {
                    // if this is the file we are fixing then pull out the correct files.
                    if (thisFile.RepStatus == RepStatus.Correct)
                    {
                        extract = true;
                    }
                }

                // next check to see if we need this extracted to fix another file
                foreach (RvFile f in thisFile.FileGroup.Files)
                {
                    if (f.RepStatus == RepStatus.CanBeFixed)
                    {
                        extract = true;
                        break;
                    }
                }

                if (!extract)
                {
                    continue;
                }

                string cleanedName = thisFile.Name;
                cleanedName = cleanedName.Replace("/", "-");
                cleanedName = cleanedName.Replace("\\", "-");

                RvFile outFile = new RvFile(FileType.File)
                {
                    Name           = cleanedName,
                    Size           = thisFile.Size,
                    CRC            = thisFile.CRC,
                    SHA1           = thisFile.SHA1,
                    MD5            = thisFile.MD5,
                    HeaderFileType = thisFile.HeaderFileType,
                    AltSize        = thisFile.AltSize,
                    AltCRC         = thisFile.AltCRC,
                    AltSHA1        = thisFile.AltSHA1,
                    AltMD5         = thisFile.AltMD5,
                    FileGroup      = thisFile.FileGroup
                };

                outFile.SetStatus(DatStatus.InToSort, GotStatus.Got);
                outFile.FileStatusSet(
                    FileStatus.HeaderFileTypeFromHeader |
                    FileStatus.SizeFromHeader | FileStatus.SizeVerified |
                    FileStatus.CRCFromHeader | FileStatus.CRCVerified |
                    FileStatus.SHA1FromHeader | FileStatus.SHA1Verified |
                    FileStatus.MD5FromHeader | FileStatus.MD5Verified |
                    FileStatus.AltSizeFromHeader | FileStatus.AltSizeVerified |
                    FileStatus.AltCRCFromHeader | FileStatus.AltCRCVerified |
                    FileStatus.AltSHA1FromHeader | FileStatus.AltSHA1Verified |
                    FileStatus.AltMD5FromHeader | FileStatus.AltMD5Verified
                    , thisFile);
                outFile.RepStatus = RepStatus.NeededForFix;

                zipFileIn.ZipFileOpenReadStream(i, out Stream readStream, out ulong unCompressedSize);

                string filenameOut = Path.Combine(outDir.FullName, outFile.Name);

                ThreadMD5  tmd5  = null;
                ThreadSHA1 tsha1 = null;

                ThreadCRC tcrc32 = new ThreadCRC();
                if (Settings.rvSettings.FixLevel != EFixLevel.Level1 && Settings.rvSettings.FixLevel != EFixLevel.TrrntZipLevel1)
                {
                    tmd5  = new ThreadMD5();
                    tsha1 = new ThreadSHA1();
                }

                int errorCode = FileStream.OpenFileWrite(filenameOut, out Stream writeStream);

                ulong sizetogo = unCompressedSize;
                while (sizetogo > 0)
                {
                    int sizenow = sizetogo > BufferSize ? BufferSize : (int)sizetogo;

                    try
                    {
                        readStream.Read(buffer, 0, sizenow);
                    }
                    catch (Exception ex)
                    {
                        if (ex is ZlibException || ex is DataErrorException)
                        {
                            ZipReturn zr = zipFileIn.ZipFileCloseReadStream();
                            if (zr != ZipReturn.ZipGood)
                            {
                                error = "Error Closing " + zr + " Stream :" + zipFileIn.ZipFilename;
                                return(ReturnCode.FileSystemError);
                            }

                            zipFileIn.ZipFileClose();
                            writeStream.Flush();
                            writeStream.Close();
                            if (filenameOut != null)
                            {
                                File.Delete(filenameOut);
                            }

                            thisFile.GotStatus = GotStatus.Corrupt;
                            error = "Unexpected corrupt archive file found:\n" + zZipFileIn.FullName +
                                    "\nRun Find Fixes, and Fix to continue fixing correctly.";
                            return(ReturnCode.SourceDataStreamCorrupt);
                        }

                        error = "Error reading Source File " + ex.Message;
                        return(ReturnCode.FileSystemError);
                    }

                    tcrc32.Trigger(buffer, sizenow);
                    tmd5?.Trigger(buffer, sizenow);
                    tsha1?.Trigger(buffer, sizenow);

                    tcrc32.Wait();
                    tmd5?.Wait();
                    tsha1?.Wait();

                    try
                    {
                        writeStream.Write(buffer, 0, sizenow);
                    }
                    catch (Exception e)
                    {
                        error = "Error writing out file. " + Environment.NewLine + e.Message;
                        return(ReturnCode.FileSystemError);
                    }
                    sizetogo = sizetogo - (ulong)sizenow;
                }
                writeStream.Flush();
                writeStream.Close();
                writeStream.Dispose();

                tcrc32.Finish();
                tmd5?.Finish();
                tsha1?.Finish();

                byte[] bCRC  = tcrc32.Hash;
                byte[] bMD5  = tmd5?.Hash;
                byte[] bSHA1 = tsha1?.Hash;

                tcrc32.Dispose();
                tmd5?.Dispose();
                tsha1?.Dispose();

                FileInfo fi = new FileInfo(filenameOut);
                outFile.TimeStamp = fi.LastWriteTime;

                if (bCRC != null && thisFile.CRC != null && !ArrByte.BCompare(bCRC, thisFile.CRC))
                {
                    // error in file.
                }
                if (bMD5 != null && thisFile.MD5 != null && !ArrByte.BCompare(bMD5, thisFile.MD5))
                {
                    // error in file.
                }
                if (bSHA1 != null && thisFile.SHA1 != null && !ArrByte.BCompare(bSHA1, thisFile.SHA1))
                {
                    // error in file.
                }

                thisFile.FileGroup.Files.Add(outFile);

                outDir.ChildAdd(outFile);
            }

            zipFileIn.ZipFileClose();

            error = "";
            return(ReturnCode.Good);
        }
Пример #5
0
        public void DeepScan()
        {
            if (_buffer0 == null)
            {
                _buffer0 = new byte[Buffersize];
                _buffer1 = new byte[Buffersize];
            }

            for (int index = 0; index < _localFiles.Count; index++)
            {
                if (_localFiles[index].isDirectory || (_localFiles[index].UncompressedSize == 0))
                {
                    _localFiles[index].md5 = new byte[]
                    { 0xd4, 0x1d, 0x8c, 0xd9, 0x8f, 0x00, 0xb2, 0x04, 0xe9, 0x80, 0x09, 0x98, 0xec, 0xf8, 0x42, 0x7e };
                    _localFiles[index].sha1 = new byte[]
                    {
                        0xda, 0x39, 0xa3, 0xee, 0x5e, 0x6b, 0x4b, 0x0d, 0x32, 0x55, 0xbf, 0xef, 0x95, 0x60, 0x18, 0x90,
                        0xaf, 0xd8, 0x07, 0x09
                    };
                    _localFiles[index].FileStatus = ZipReturn.ZipGood;

                    continue;
                }

                ulong     sizetogo;
                Stream    inStream;
                ZipReturn zr = ZipFileOpenReadStream(index, out inStream, out sizetogo);
                if (zr != ZipReturn.ZipGood)
                {
                    continue;
                }

                if (inStream == null)
                {
                    continue;
                }


                ThreadLoadBuffer lbuffer = new ThreadLoadBuffer(inStream);
                ThreadCRC        tcrc32  = new ThreadCRC();
                ThreadMD5        tmd5    = new ThreadMD5();
                ThreadSHA1       tsha1   = new ThreadSHA1();

                // Pre load the first buffer0
                int sizeNext = sizetogo > Buffersize ? Buffersize : (int)sizetogo;
                inStream.Read(_buffer0, 0, sizeNext);
                int sizebuffer = sizeNext;
                sizetogo -= (ulong)sizeNext;
                bool whichBuffer = true;

                while ((sizebuffer > 0) && !lbuffer.errorState)
                {
                    sizeNext = sizetogo > Buffersize ? Buffersize : (int)sizetogo;

                    if (sizeNext > 0)
                    {
                        lbuffer.Trigger(whichBuffer ? _buffer1 : _buffer0, sizeNext);
                    }

                    byte[] buffer = whichBuffer ? _buffer0 : _buffer1;
                    tcrc32.Trigger(buffer, sizebuffer);
                    tmd5.Trigger(buffer, sizebuffer);
                    tsha1.Trigger(buffer, sizebuffer);

                    if (sizeNext > 0)
                    {
                        lbuffer.Wait();
                    }
                    tcrc32.Wait();
                    tmd5.Wait();
                    tsha1.Wait();

                    sizebuffer  = sizeNext;
                    sizetogo   -= (ulong)sizeNext;
                    whichBuffer = !whichBuffer;
                }

                if (lbuffer.errorState)
                {
                    lbuffer.Dispose();
                    tcrc32.Dispose();
                    tmd5.Dispose();
                    tsha1.Dispose();
                    _localFiles[index].FileStatus = ZipReturn.ZipDecodeError;
                    continue;
                }

                lbuffer.Finish();
                tcrc32.Finish();
                tmd5.Finish();
                tsha1.Finish();

                byte[] testcrc = tcrc32.Hash;
                _localFiles[index].md5  = tmd5.Hash;
                _localFiles[index].sha1 = tsha1.Hash;

                lbuffer.Dispose();
                tcrc32.Dispose();
                tmd5.Dispose();
                tsha1.Dispose();

                _localFiles[index].FileStatus = Util.ByteArrCompare(_localFiles[index].crc, testcrc)
                    ? ZipReturn.ZipGood
                    : ZipReturn.ZipCRCDecodeError;
            }
        }