internal static ZipArchiveFile ReadHeader(FileStream stream)
{
BinaryReader binaryReader = new BinaryReader(stream);
uint num = binaryReader.ReadUInt32();
if (num != 67324752u)
{
return null;
}
ZipArchiveFile zipArchiveFile = new ZipArchiveFile();
binaryReader.ReadUInt16();
binaryReader.ReadUInt16();
zipArchiveFile.compressMethod = binaryReader.ReadUInt16();
binaryReader.ReadUInt16();
binaryReader.ReadUInt16();
binaryReader.ReadUInt32();
uint num2 = binaryReader.ReadUInt32();
binaryReader.ReadUInt32();
ushort num3 = binaryReader.ReadUInt16();
ushort count = binaryReader.ReadUInt16();
byte[] array = new byte[(int)num3];
binaryReader.Read(array, 0, (int)num3);
zipArchiveFile.Name = Encoding.UTF8.GetString(array);
binaryReader.ReadBytes((int)count);
zipArchiveFile.dataPosition = binaryReader.BaseStream.Position;
binaryReader.BaseStream.Seek((long)((ulong)num2), SeekOrigin.Current);
return zipArchiveFile;
}
/// <summary>
/// Copyies 'sourceFilePath from the textStream system to the archive as 'targetArchivePath'
/// It will overwrite any existing textStream.
/// </summary>
public void CopyFromFile(string sourceFilePath, string targetArchivePath)
{
using (Stream inFile = new FileStream(sourceFilePath, FileMode.Open, FileAccess.Read))
using (Stream outFile = Create(targetArchivePath))
ZipArchiveFile.CopyStream(inFile, outFile);
this[targetArchivePath].LastWriteTime = File.GetLastWriteTime(sourceFilePath);
}
/// <summary>
/// Fetch a archiveFile by name. 'archivePath' is the full path name of the archiveFile in the archive.
/// It returns null if the name does not exist (and e
/// </summary>
public ZipArchiveFile this[string archivePath]
{
get
{
ZipArchiveFile ret = null;
entries.TryGetValue(archivePath, out ret);
return(ret);
}
}
/// <summary>
/// Overwrites the archive textStream 'archivePath' with the text in 'data'
/// </summary>
public void WriteAllText(string archivePath, string data)
{
ZipArchiveFile newEntry;
if (!entries.TryGetValue(archivePath, out newEntry))
{
newEntry = new ZipArchiveFile(this, archivePath);
}
newEntry.WriteAllText(data);
}
/// <summary>
/// Opens a textStream in the archive for writing as a text textStream. Returns the resulting TextWriter.
/// </summary>
public TextWriter CreateText(string archivePath)
{
ZipArchiveFile newEntry;
if (!entries.TryGetValue(archivePath, out newEntry))
{
newEntry = new ZipArchiveFile(this, archivePath);
}
return(newEntry.CreateText());
}
private void Read(Stream archiveStream)
{
// TODO for seekable streams, seek to the end of the stream, and use the archive directory there
// to avoid reading most of the file.
for (; ;)
{
ZipArchiveFile entry = ZipArchiveFile.Read(this);
if (entry == null)
{
break;
}
}
}
/// <summary>
/// Opens a textStream in the archive for writing as a text textStream. Returns the resulting TextWriter.
/// </summary>
public TextWriter CreateText(string archivePath)
{
ZipArchiveFile newEntry;
if (!entries.TryGetValue(archivePath, out newEntry))
newEntry = new ZipArchiveFile(this, archivePath);
return newEntry.CreateText();
}
/// <summary>
/// Opens the archive textStream 'archivePath' for writing and returns the resulting Stream. If the textStream
/// already exists, it is truncated to be an empty textStream.
/// </summary>
public Stream Create(string archivePath)
{
ZipArchiveFile newEntry;
if (!entries.TryGetValue(archivePath, out newEntry))
newEntry = new ZipArchiveFile(this, archivePath);
return newEntry.Create();
}
/// <summary>
/// Reads a single archiveFile from a Zip Archive. Should only be used by ZipArchive.
/// </summary>
/// <returns>A ZipArchiveFile representing the archiveFile read from the archive.</returns>
internal static ZipArchiveFile Read(ZipArchive archive)
{
Stream reader = archive.fromStream;
ByteBuffer header = new ByteBuffer(30);
int count = header.ReadContentsFrom(reader);
if (count == 0)
return null;
//Local file header:
//
//local file header signature 4 bytes (0x04034b50)
//version needed to extract 2 bytes
//general purpose bit flag 2 bytes
//compression method 2 bytes
//last mod file time 2 bytes
//last mod file date 2 bytes
//crc-32 4 bytes
//compressed size 4 bytes
//uncompressed size 4 bytes
//file name length 2 bytes
//extra field length 2 bytes
//
//file name (variable size)
//extra field (variable size)
uint fileSignature = header.ReadUInt32();
if (fileSignature != SignatureFileEntry) {
if (fileSignature != SignatureArchiveDirectory)
throw new ApplicationException("Bad ZipFile Header");
return null;
}
ushort versionNeededToExtract = header.ReadUInt16();
if (versionNeededToExtract > MaximumVersionExtractable)
throw new ApplicationException("Zip file requires unsupported features");
header.SkipBytes(2); // general purpose bit flag
ZipArchiveFile newEntry = new ZipArchiveFile(archive, null);
newEntry.compressionMethod = (CompressionMethod)header.ReadUInt16();
newEntry.lastWriteTime = DosTimeToDateTime(header.ReadUInt32());
newEntry.crc32 = header.ReadUInt32();
newEntry.compressedLength = checked((int)header.ReadUInt32());
newEntry.length = header.ReadUInt32();
int fileNameLength = checked((int)header.ReadUInt16());
byte[] fileNameBuffer = new byte[fileNameLength];
int fileNameCount = reader.Read(fileNameBuffer, 0, fileNameLength);
newEntry.name = Encoding.UTF8.GetString(fileNameBuffer).Replace('/', Path.DirectorySeparatorChar);
archive.entries[newEntry.name] = newEntry;
if (count != header.Length || fileNameCount != fileNameLength || fileNameLength == 0 || newEntry.LastWriteTime.Ticks == 0)
throw new ApplicationException("Bad Zip File Header");
if (newEntry.Name.IndexOfAny(invalidPathChars) >= 0)
throw new ApplicationException("Invalid File Name");
if (newEntry.compressionMethod != CompressionMethod.None && newEntry.compressionMethod != CompressionMethod.Deflate)
throw new ApplicationException("Unsupported compression mode " + newEntry.compressionMethod);
if (archive.IsReadOnly && reader.CanSeek) {
// Optimization: we can defer reading in the data in the common case of a read-only archive.
// by simply remembering where the data is and fetching it on demand. This is nice because
// we only hold on to memory of data we are actually operating on. (instead of the whole archive)
//
// Because uncompresseData is null, we know that we fetch it from the archive 'fromStream'.
newEntry.positionOfCompressedDataInArchive = archive.fromStream.Position;
reader.Seek(newEntry.compressedLength, SeekOrigin.Current);
} else {
// We may be updating the archive in place, so we need to copy the data out.
newEntry.compressedData = new byte[newEntry.compressedLength];
reader.Read(newEntry.compressedData, 0, (int)newEntry.compressedLength);
}
#if DEBUG
newEntry.Validate();
#endif
return newEntry;
}
/// <summary>
/// Overwrites the archive textStream 'archivePath' with the text in 'data'
/// </summary>
public void WriteAllText(string archivePath, string data)
{
ZipArchiveFile newEntry;
if (!entries.TryGetValue(archivePath, out newEntry))
newEntry = new ZipArchiveFile(this, archivePath);
newEntry.WriteAllText(data);
}
/// <summary>
/// Reads a single archiveFile from a Zip Archive. Should only be used by ZipArchive.
/// </summary>
/// <returns>A ZipArchiveFile representing the archiveFile read from the archive.</returns>
internal static ZipArchiveFile Read(ZipArchive archive)
{
Stream reader = archive.fromStream;
ByteBuffer header = new ByteBuffer(30);
int count = header.ReadContentsFrom(reader);
if (count == 0)
{
return(null);
}
//Local file header:
//
//local file header signature 4 bytes (0x04034b50)
//version needed to extract 2 bytes
//general purpose bit flag 2 bytes
//compression method 2 bytes
//last mod file time 2 bytes
//last mod file date 2 bytes
//crc-32 4 bytes
//compressed size 4 bytes
//uncompressed size 4 bytes
//file name length 2 bytes
//extra field length 2 bytes
//
//file name (variable size)
//extra field (variable size)
uint fileSignature = header.ReadUInt32();
if (fileSignature != SignatureFileEntry)
{
if (fileSignature != SignatureArchiveDirectory)
{
throw new ApplicationException("Bad ZipFile Header");
}
return(null);
}
ushort versionNeededToExtract = header.ReadUInt16();
if (versionNeededToExtract > MaximumVersionExtractable)
{
throw new ApplicationException("Zip file requires unsupported features");
}
header.SkipBytes(2); // general purpose bit flag
ZipArchiveFile newEntry = new ZipArchiveFile(archive, null);
newEntry.compressionMethod = (CompressionMethod)header.ReadUInt16();
newEntry.lastWriteTime = DosTimeToDateTime(header.ReadUInt32());
newEntry.crc32 = header.ReadUInt32();
newEntry.compressedLength = checked ((int)header.ReadUInt32());
newEntry.length = header.ReadUInt32();
int fileNameLength = checked ((int)header.ReadUInt16());
byte[] fileNameBuffer = new byte[fileNameLength];
int fileNameCount = reader.Read(fileNameBuffer, 0, fileNameLength);
newEntry.name = Encoding.UTF8.GetString(fileNameBuffer);
archive.entries[newEntry.name] = newEntry;
if (count != header.Length || fileNameCount != fileNameLength || fileNameLength == 0 || newEntry.LastWriteTime.Ticks == 0)
{
throw new ApplicationException("Bad Zip File Header");
}
if (newEntry.Name.IndexOfAny(invalidPathChars) >= 0)
{
throw new ApplicationException("Invalid File Name");
}
if (newEntry.compressionMethod != CompressionMethod.None && newEntry.compressionMethod != CompressionMethod.Deflate)
{
throw new ApplicationException("Unsupported compression mode " + newEntry.compressionMethod);
}
if (archive.IsReadOnly && reader.CanSeek)
{
// Optimization: we can defer reading in the data in the common case of a read-only archive.
// by simply remembering where the data is and fetching it on demand. This is nice because
// we only hold on to memory of data we are actually operating on. (instead of the whole archive)
//
// Because uncompresseData is null, we know that we fetch it from the archive 'fromStream'.
newEntry.positionOfCompressedDataInArchive = archive.fromStream.Position;
reader.Seek(newEntry.compressedLength, SeekOrigin.Current);
}
else
{
// We may be updating the archive in place, so we need to copy the data out.
newEntry.compressedData = new byte[newEntry.compressedLength];
reader.Read(newEntry.compressedData, 0, (int)newEntry.compressedLength);
}
#if DEBUG
newEntry.Validate();
#endif
return(newEntry);
}
public override bool Execute()
{
// There's nothing to do if we have no files or not Xap name given
if (XapFile == null || Files == null || Files.Length == 0)
{
return(true);
}
string xapPath = XapFile.ItemSpec;
if (!File.Exists(xapPath))
{
Log.LogError("The Xap file {0} could not be found.", xapPath);
return(false);
}
bool succeeded = true;
try
{
ZipArchive xap = new ZipArchive(xapPath, FileAccess.ReadWrite);
// Process the files
for (int i = 0; i < Files.Length; i++)
{
string sourcePath = Files[i].ItemSpec;
FileInfo sourceInfo = new FileInfo(sourcePath);
string saveFileAs = sourceInfo.Name;
if (!string.IsNullOrEmpty(FileReplacementToken))
{
saveFileAs = saveFileAs.Replace(FileReplacementToken, string.Empty);
}
// Make sure they didn't pass a directory as an item
if (Directory.Exists(sourcePath))
{
Log.LogError("Cannot process item \"{0}\" because it is a directory!", sourcePath);
succeeded = false;
continue;
}
// Make sure the source exists
if (!sourceInfo.Exists)
{
Log.LogError("Cannot process file \"{0}\" that does not exist!", sourcePath);
succeeded = false;
continue;
}
ZipArchiveFile zaf = xap[saveFileAs];
if (zaf == null)
{
Log.LogError(
"The file \"{0}\" was not found inside the Xap file \"{1}\"",
saveFileAs,
xapPath);
succeeded = false;
}
else
{
zaf.Delete();
// Overwrite the contents inside the Xap
using (Stream fileInsideXap = xap.Create(saveFileAs))
{
using (Stream newFile = sourceInfo.OpenRead())
{
ZipArchiveFile.CopyStream(newFile, fileInsideXap);
}
}
Log.LogMessage(
MessageImportance.High,
"File \"{0}\" inside the Xap file \"{1}\" was replaced with the contents of \"{2}\"",
saveFileAs,
xapPath,
sourcePath);
}
}
// Close the Xap file, saving any changes
xap.Close();
Log.LogMessage("Xap file \"{0}\" saved.", xapPath);
}
catch (Exception ex)
{
Log.LogErrorFromException(ex);
succeeded = false;
}
return(succeeded);
}