public RarStream(string rarPath)
{
bool oldNameFormat = true;
RarBlock block = null;
using (RarReader rdr = new RarReader(rarPath, RarReadMode.RAR))
while ((block = rdr.Read()) != null)
{
if (block is RarVolumeHeaderBlock && ((block.Flags & (ushort)RarVolumeHeaderBlock.FlagValues.Volume) != 0))
{
oldNameFormat = (block.Flags & (ushort)RarVolumeHeaderBlock.FlagValues.NewNumbering) == 0;
}
else if (block is RarPackedFileBlock)
{
if ((block.Flags & (ushort)RarPackedFileBlock.FlagValues.SplitBefore) != 0)
{
throw new InvalidDataException("You must start with the first volume from a RAR set");
}
break;
}
}
// this constructor implementation picks the first packed file encountered in the archive and sets up to read it
// an alternate constructor might have a parameter to specify the packed file to read.
string packedFileName = null;
string nextFileName = rarPath;
while (File.Exists(nextFileName))
{
using (RarReader rdr = new RarReader(nextFileName, RarReadMode.RAR))
while ((block = rdr.Read()) != null)
{
RarPackedFileBlock fblock = block as RarPackedFileBlock;
if (fblock != null)
{
if (string.IsNullOrEmpty(packedFileName))
{
packedFileName = fblock.FileName;
}
if (packedFileName == fblock.FileName)
{
if (fblock.CompressionMethod != 0x30)
{
throw new InvalidDataException("Compressed RARs are not supported");
}
currentVol = new RarVolume();
currentVol.FilePath = nextFileName;
currentVol.PackedFileRangeStart = packedFileLength;
currentVol.PackedFileRangeEnd = packedFileLength + (long)fblock.PackedSize - 1;
currentVol.PackedFileOffset = fblock.BlockPosition + fblock.RawData.LongLength;
rarVolumes.Add(currentVol);
packedFileLength += (long)fblock.PackedSize;
}
}
}
nextFileName = RarFileNameFinder.FindNextFileName(nextFileName, oldNameFormat);
}
currentVol = rarVolumes[0];
}
static int CreateReconstructionFile(List <FileInfo> inFiles, DirectoryInfo inFolder, List <string> storeFiles, string srrName, bool savePaths)
{
using (FileStream srrfs = new FileStream(srrName, FileMode.Create))
{
BinaryWriter bw = new BinaryWriter(srrfs, Encoding.ASCII);
bw.Write(new SrrHeaderBlock(appName).RawData);
// we store copies of any files included in the storeFiles list in the .srr using a "store block". any SFV files used are also included.
foreach (FileInfo fi in inFiles)
{
if (fi.Extension.ToLower() == ".sfv")
{
storeFiles.Add(fi.FullName);
}
}
SrrStoredFileBlock storeBlock = null;
foreach (string fileName in storeFiles)
{
string searchName = fileName;
if (!Path.IsPathRooted(searchName))
{
searchName = Path.Combine(inFolder.FullName, fileName);
}
DirectoryInfo searchDir = new DirectoryInfo(Path.GetDirectoryName(searchName));
if (searchDir.Exists)
{
foreach (FileInfo storeFile in searchDir.GetFiles(Path.GetFileName(searchName)))
{
string fName = savePaths ? MakePathRelative(storeFile.FullName, inFolder.FullName) : storeFile.Name;
Console.WriteLine("Storing file: {0}", fName);
storeBlock = new SrrStoredFileBlock(fName, (int)storeFile.Length);
if (savePaths)
{
storeBlock.Flags |= (ushort)SrrStoredFileBlock.FlagValues.PathsSaved;
}
using (FileStream storefs = storeFile.OpenRead())
storefs.Read(storeBlock.RawData, storeBlock.FileOffset, (int)storeFile.Length);
bw.Write(storeBlock.RawData);
}
}
}
List <string> rarFiles = new List <string>();
foreach (FileInfo inFile in inFiles)
{
if (inFile.Extension.ToLower() == ".sfv")
{
using (SfvReader sfvReader = new SfvReader(inFile.FullName))
{
List <string> sfvRarFiles = new List <string>();
SfvEntry sfvEntry;
while ((sfvEntry = sfvReader.Read()) != null)
{
if (RarFileNameComparer.IsRarFile(sfvEntry.FileName))
{
sfvRarFiles.Add(Path.Combine(inFile.DirectoryName, sfvEntry.FileName));
}
else
{
ReportError(string.Format("Warning: Non-RAR file referenced in SFV: {0}\n\tThis file cannot be recreated unless it is stored using -s", sfvEntry.FileName));
continue;
}
}
sfvRarFiles.Sort(new RarFileNameComparer());
rarFiles.AddRange(sfvRarFiles);
}
}
else
{
bool oldNameFormat = false;
RarBlock block = null;
using (RarReader rdr = new RarReader(inFile.FullName, RarReadMode.RAR))
while ((block = rdr.Read()) != null)
{
if (block is RarVolumeHeaderBlock && ((block.Flags & (ushort)RarVolumeHeaderBlock.FlagValues.Volume) != 0))
{
if ((block.Flags & (ushort)RarVolumeHeaderBlock.FlagValues.FirstVolume) == 0)
{
throw new InvalidDataException("You must start with the first volume from a RAR set");
}
oldNameFormat = (block.Flags & (ushort)RarVolumeHeaderBlock.FlagValues.NewNumbering) == 0;
}
}
string nextFileName = inFile.FullName;
while (File.Exists(nextFileName))
{
rarFiles.Add(Path.Combine(inFile.DirectoryName, nextFileName));
nextFileName = RarFileNameFinder.FindNextFileName(nextFileName, oldNameFormat);
}
}
}
foreach (string fileName in rarFiles)
{
if (!File.Exists(fileName))
{
ReportError(string.Format("Referenced file not found: {0}", fileName));
srrfs.Close();
File.Delete(srrName);
return(2);
}
string fName = savePaths ? MakePathRelative(fileName, inFolder.FullName) : Path.GetFileName(fileName);
Console.WriteLine("Processing file: {0}", fName);
SrrRarFileBlock rarBlock = new SrrRarFileBlock(fName);
if (savePaths)
{
rarBlock.Flags |= (ushort)SrrRarFileBlock.FlagValues.PathsSaved;
}
bw.Write(rarBlock.RawData);
using (RarReader rarReader = new RarReader(fileName, RarReadMode.RAR))
{
RarBlock block;
while ((block = rarReader.Read()) != null)
{
if (verbose)
{
Console.WriteLine("\tBlock Type: 0x{0:x2}", block.RawType);
Console.WriteLine("\tBlock Size: {0}", block.RawData.Length);
}
if (block is RarPackedFileBlock)
{
RarPackedFileBlock fileData = (RarPackedFileBlock)block;
if (verbose)
{
Console.WriteLine("\t\tCompression Type: 0x{0:x2}", fileData.CompressionMethod);
Console.WriteLine("\t\tPacked Data Size: {0:n0}", fileData.PackedSize);
Console.WriteLine("\t\tFile Size: {0:n0}", fileData.UnpackedSize);
Console.WriteLine("\t\tFile Name: {0}", fileData.FileName);
}
if (fileData.CompressionMethod != 0x30)
{
ReportError(string.Format("Archive uses unsupported compression method: {0}", fileName));
srrfs.Close();
File.Delete(srrName);
return(3);
}
}
else if (block is RarRecoveryBlock)
{
RarRecoveryBlock subData = (RarRecoveryBlock)block;
if (verbose & subData.RecoverySectors > 0)
{
Console.WriteLine("\t\tRecovery Record Size: {0:n0}", subData.PackedSize);
Console.WriteLine("\t\tRecovery Sectors: {0:n0}", subData.RecoverySectors);
Console.WriteLine("\t\tProtected Sectors: {0:n0}", subData.DataSectors);
}
}
// store the raw data for any blocks found
bw.Write(block.RawData);
}
}
}
}
Console.WriteLine("\nReconstruction file successfully created: {0}", srrName);
return(0);
}
