/// <inheritdoc/>
public override bool Write(List <string> inputFiles, string outDir, List <BaseFile> baseFiles)
{
bool success = false;
string tempFile = Path.Combine(outDir, $"tmp{Guid.NewGuid()}");
// If either list of roms is null or empty, return
if (inputFiles == null || baseFiles == null || inputFiles.Count == 0 || baseFiles.Count == 0)
{
return(success);
}
// If the number of inputs is less than the number of available roms, return
if (inputFiles.Count < baseFiles.Count)
{
return(success);
}
// If one of the files doesn't exist, return
foreach (string file in inputFiles)
{
if (!File.Exists(file))
{
return(success);
}
}
// Get the output archive name from the first rebuild rom
string archiveFileName = Path.Combine(outDir, Utilities.RemovePathUnsafeCharacters(baseFiles[0].Parent) + (baseFiles[0].Parent.EndsWith(".7z") ? string.Empty : ".7z"));
// Set internal variables
Stream writeStream = null;
SevenZ oldZipFile = new SevenZ();
SevenZ zipFile = new SevenZ();
ZipReturn zipReturn = ZipReturn.ZipGood;
try
{
// If the full output path doesn't exist, create it
if (!Directory.Exists(Path.GetDirectoryName(archiveFileName)))
{
Directory.CreateDirectory(Path.GetDirectoryName(archiveFileName));
}
// If the archive doesn't exist, create it and put the single file
if (!File.Exists(archiveFileName))
{
zipReturn = zipFile.ZipFileCreate(tempFile);
// Map all inputs to index
Dictionary <string, int> inputIndexMap = new Dictionary <string, int>();
for (int i = 0; i < inputFiles.Count; i++)
{
inputIndexMap.Add(baseFiles[i].Filename.Replace('\\', '/'), i);
}
// Sort the keys in TZIP order
List <string> keys = inputIndexMap.Keys.ToList();
keys.Sort(ZipUtils.TrrntZipStringCompare);
// Now add all of the files in order
foreach (string key in keys)
{
// Get the index mapped to the key
int index = inputIndexMap[key];
// Open the input file for reading
Stream freadStream = File.OpenRead(inputFiles[index]);
ulong istreamSize = (ulong)(new FileInfo(inputFiles[index]).Length);
DateTime dt = DateTime.Now;
if (UseDates && !string.IsNullOrWhiteSpace(baseFiles[index].Date) && DateTime.TryParse(baseFiles[index].Date.Replace('\\', '/'), out dt))
{
long msDosDateTime = Utilities.ConvertDateTimeToMsDosTimeFormat(dt);
TimeStamps ts = new TimeStamps {
ModTime = msDosDateTime
};
zipFile.ZipFileOpenWriteStream(false, false, baseFiles[index].Filename.Replace('\\', '/'), istreamSize, 0, out writeStream, ts);
}
else
{
zipFile.ZipFileOpenWriteStream(false, true, baseFiles[index].Filename.Replace('\\', '/'), istreamSize, 0, out writeStream, null);
}
// Copy the input stream to the output
byte[] ibuffer = new byte[_bufferSize];
int ilen;
while ((ilen = freadStream.Read(ibuffer, 0, _bufferSize)) > 0)
{
writeStream.Write(ibuffer, 0, ilen);
writeStream.Flush();
}
freadStream.Dispose();
zipFile.ZipFileCloseWriteStream(baseFiles[index].CRC);
}
}
// Otherwise, sort the input files and write out in the correct order
else
{
// Open the old archive for reading
oldZipFile.ZipFileOpen(archiveFileName, -1, true);
// Map all inputs to index
Dictionary <string, int> inputIndexMap = new Dictionary <string, int>();
for (int i = 0; i < inputFiles.Count; i++)
{
var oldZipFileContents = new List <string>();
for (int j = 0; j < oldZipFile.LocalFilesCount(); j++)
{
oldZipFileContents.Add(oldZipFile.Filename(j));
}
// If the old one contains the new file, then just skip out
if (oldZipFileContents.Contains(baseFiles[i].Filename.Replace('\\', '/')))
{
continue;
}
inputIndexMap.Add(baseFiles[i].Filename.Replace('\\', '/'), -(i + 1));
}
// Then add all of the old entries to it too
for (int i = 0; i < oldZipFile.LocalFilesCount(); i++)
{
inputIndexMap.Add(oldZipFile.Filename(i), i);
}
// If the number of entries is the same as the old archive, skip out
if (inputIndexMap.Keys.Count <= oldZipFile.LocalFilesCount())
{
success = true;
return(success);
}
// Otherwise, process the old zipfile
zipFile.ZipFileCreate(tempFile);
// Get the order for the entries with the new file
List <string> keys = inputIndexMap.Keys.ToList();
keys.Sort(ZipUtils.TrrntZipStringCompare);
// Copy over all files to the new archive
foreach (string key in keys)
{
// Get the index mapped to the key
int index = inputIndexMap[key];
// If we have the input file, add it now
if (index < 0)
{
// Open the input file for reading
Stream freadStream = File.OpenRead(inputFiles[-index - 1]);
ulong istreamSize = (ulong)(new FileInfo(inputFiles[-index - 1]).Length);
DateTime dt = DateTime.Now;
if (UseDates && !string.IsNullOrWhiteSpace(baseFiles[-index - 1].Date) && DateTime.TryParse(baseFiles[-index - 1].Date.Replace('\\', '/'), out dt))
{
long msDosDateTime = Utilities.ConvertDateTimeToMsDosTimeFormat(dt);
TimeStamps ts = new TimeStamps {
ModTime = msDosDateTime
};
zipFile.ZipFileOpenWriteStream(false, false, baseFiles[-index - 1].Filename.Replace('\\', '/'), istreamSize, 0, out writeStream, ts);
}
else
{
zipFile.ZipFileOpenWriteStream(false, true, baseFiles[-index - 1].Filename.Replace('\\', '/'), istreamSize, 0, out writeStream, null);
}
// Copy the input stream to the output
byte[] ibuffer = new byte[_bufferSize];
int ilen;
while ((ilen = freadStream.Read(ibuffer, 0, _bufferSize)) > 0)
{
writeStream.Write(ibuffer, 0, ilen);
writeStream.Flush();
}
freadStream.Dispose();
zipFile.ZipFileCloseWriteStream(baseFiles[-index - 1].CRC);
}
// Otherwise, copy the file from the old archive
else
{
// Instantiate the streams
oldZipFile.ZipFileOpenReadStream(index, out Stream zreadStream, out ulong istreamSize);
zipFile.ZipFileOpenWriteStream(false, true, oldZipFile.Filename(index), istreamSize, 0, out writeStream, null);
// Copy the input stream to the output
byte[] ibuffer = new byte[_bufferSize];
int ilen;
while ((ilen = zreadStream.Read(ibuffer, 0, _bufferSize)) > 0)
{
writeStream.Write(ibuffer, 0, ilen);
writeStream.Flush();
}
zipFile.ZipFileCloseWriteStream(oldZipFile.CRC32(index));
}
}
}
// Close the output zip file
zipFile.ZipFileClose();
oldZipFile.ZipFileClose();
success = true;
}
catch (Exception ex)
{
logger.Error(ex);
success = false;
}
// If the old file exists, delete it and replace
if (File.Exists(archiveFileName))
{
File.Delete(archiveFileName);
}
File.Move(tempFile, archiveFileName);
return(true);
}
/// <summary>
/// Write an input file to a torrent7z archive
/// </summary>
/// <param name="inputStream">Input stream to be moved</param>
/// <param name="outDir">Output directory to build to</param>
/// <param name="rom">DatItem representing the new information</param>
/// <returns>True if the archive was written properly, false otherwise</returns>
public override bool Write(Stream inputStream, string outDir, Rom rom)
{
bool success = false;
string tempFile = Path.Combine(outDir, $"tmp{Guid.NewGuid()}");
// If either input is null or empty, return
if (inputStream == null || rom == null || rom.Name == null)
{
return(success);
}
// If the stream is not readable, return
if (!inputStream.CanRead)
{
return(success);
}
// Seek to the beginning of the stream
inputStream.Seek(0, SeekOrigin.Begin);
// Get the output archive name from the first rebuild rom
string archiveFileName = Path.Combine(outDir, Sanitizer.RemovePathUnsafeCharacters(rom.Machine.Name) + (rom.Machine.Name.EndsWith(".7z") ? string.Empty : ".7z"));
// Set internal variables
Stream writeStream = null;
SevenZ oldZipFile = new SevenZ();
SevenZ zipFile = new SevenZ();
ZipReturn zipReturn = ZipReturn.ZipGood;
try
{
// If the full output path doesn't exist, create it
if (!Directory.Exists(Path.GetDirectoryName(archiveFileName)))
{
Directory.CreateDirectory(Path.GetDirectoryName(archiveFileName));
}
// If the archive doesn't exist, create it and put the single file
if (!File.Exists(archiveFileName))
{
inputStream.Seek(0, SeekOrigin.Begin);
zipReturn = zipFile.ZipFileCreate(tempFile);
// Open the input file for reading
ulong istreamSize = (ulong)(inputStream.Length);
DateTime dt = DateTime.Now;
if (UseDates && !string.IsNullOrWhiteSpace(rom.Date) && DateTime.TryParse(rom.Date.Replace('\\', '/'), out dt))
{
uint msDosDateTime = Utilities.ConvertDateTimeToMsDosTimeFormat(dt);
zipFile.ZipFileOpenWriteStream(false, false, rom.Name.Replace('\\', '/'), istreamSize, 0, msDosDateTime, out writeStream);
}
else
{
zipFile.ZipFileOpenWriteStream(false, true, rom.Name.Replace('\\', '/'), istreamSize, 0, null, out writeStream);
}
// Copy the input stream to the output
byte[] ibuffer = new byte[_bufferSize];
int ilen;
while ((ilen = inputStream.Read(ibuffer, 0, _bufferSize)) > 0)
{
writeStream.Write(ibuffer, 0, ilen);
writeStream.Flush();
}
zipFile.ZipFileCloseWriteStream(Utilities.StringToByteArray(rom.CRC));
}
// Otherwise, sort the input files and write out in the correct order
else
{
// Open the old archive for reading
oldZipFile.ZipFileOpen(archiveFileName, -1, true);
// Map all inputs to index
Dictionary <string, int> inputIndexMap = new Dictionary <string, int>();
var oldZipFileContents = new List <string>();
for (int i = 0; i < oldZipFile.LocalFilesCount(); i++)
{
oldZipFileContents.Add(oldZipFile.Filename(i));
}
// If the old one doesn't contain the new file, then add it
if (!oldZipFileContents.Contains(rom.Name.Replace('\\', '/')))
{
inputIndexMap.Add(rom.Name.Replace('\\', '/'), -1);
}
// Then add all of the old entries to it too
for (int i = 0; i < oldZipFile.LocalFilesCount(); i++)
{
inputIndexMap.Add(oldZipFile.Filename(i), i);
}
// If the number of entries is the same as the old archive, skip out
if (inputIndexMap.Keys.Count <= oldZipFile.LocalFilesCount())
{
success = true;
return(success);
}
// Otherwise, process the old zipfile
zipFile.ZipFileCreate(tempFile);
// Get the order for the entries with the new file
List <string> keys = inputIndexMap.Keys.ToList();
keys.Sort(ZipFile.TrrntZipStringCompare);
// Copy over all files to the new archive
foreach (string key in keys)
{
// Get the index mapped to the key
int index = inputIndexMap[key];
// If we have the input file, add it now
if (index < 0)
{
// Open the input file for reading
ulong istreamSize = (ulong)(inputStream.Length);
DateTime dt = DateTime.Now;
if (UseDates && !string.IsNullOrWhiteSpace(rom.Date) && DateTime.TryParse(rom.Date.Replace('\\', '/'), out dt))
{
uint msDosDateTime = Utilities.ConvertDateTimeToMsDosTimeFormat(dt);
zipFile.ZipFileOpenWriteStream(false, false, rom.Name.Replace('\\', '/'), istreamSize, 0, msDosDateTime, out writeStream);
}
else
{
zipFile.ZipFileOpenWriteStream(false, true, rom.Name.Replace('\\', '/'), istreamSize, 0, null, out writeStream);
}
// Copy the input stream to the output
byte[] ibuffer = new byte[_bufferSize];
int ilen;
while ((ilen = inputStream.Read(ibuffer, 0, _bufferSize)) > 0)
{
writeStream.Write(ibuffer, 0, ilen);
writeStream.Flush();
}
zipFile.ZipFileCloseWriteStream(Utilities.StringToByteArray(rom.CRC));
}
// Otherwise, copy the file from the old archive
else
{
// Instantiate the streams
oldZipFile.ZipFileOpenReadStream(index, out Stream zreadStream, out ulong istreamSize);
zipFile.ZipFileOpenWriteStream(false, true, oldZipFile.Filename(index), istreamSize, 0, null, out writeStream);
// Copy the input stream to the output
byte[] ibuffer = new byte[_bufferSize];
int ilen;
while ((ilen = zreadStream.Read(ibuffer, 0, _bufferSize)) > 0)
{
writeStream.Write(ibuffer, 0, ilen);
writeStream.Flush();
}
oldZipFile.ZipFileCloseReadStream();
zipFile.ZipFileCloseWriteStream(oldZipFile.CRC32(index));
}
}
}
// Close the output zip file
zipFile.ZipFileClose();
oldZipFile.ZipFileClose();
success = true;
}
catch (Exception ex)
{
logger.Error(ex);
success = false;
}
finally
{
}
// If the old file exists, delete it and replace
if (File.Exists(archiveFileName))
{
FileExtensions.TryDelete(archiveFileName);
}
File.Move(tempFile, archiveFileName);
return(true);
}
