public ZipEntry(ZipEntry entry)
{
this.externalFileAttributes = -1;
this.method = Maticsoft.ZipLib.Zip.CompressionMethod.Deflated;
this.zipFileIndex = -1L;
if (entry == null)
{
throw new ArgumentNullException("entry");
}
this.known = entry.known;
this.name = entry.name;
this.size = entry.size;
this.compressedSize = entry.compressedSize;
this.crc = entry.crc;
this.dosTime = entry.dosTime;
this.method = entry.method;
this.comment = entry.comment;
this.versionToExtract = entry.versionToExtract;
this.versionMadeBy = entry.versionMadeBy;
this.externalFileAttributes = entry.externalFileAttributes;
this.flags = entry.flags;
this.zipFileIndex = entry.zipFileIndex;
this.offset = entry.offset;
this.forceZip64_ = entry.forceZip64_;
if (entry.extra != null)
{
this.extra = new byte[entry.extra.Length];
Array.Copy(entry.extra, 0, this.extra, 0, entry.extra.Length);
}
}
public ZipEntry MakeDirectoryEntry(string directoryName, bool useFileSystem)
{
ZipEntry entry = new ZipEntry(this.nameTransform_.TransformDirectory(directoryName)) {
IsUnicodeText = this.isUnicodeText_,
Size = 0L
};
int num = 0;
DirectoryInfo info = null;
if (useFileSystem)
{
info = new DirectoryInfo(directoryName);
}
if ((info == null) || !info.Exists)
{
if (this.timeSetting_ == TimeSetting.Fixed)
{
entry.DateTime = this.fixedDateTime_;
}
}
else
{
switch (this.timeSetting_)
{
case TimeSetting.LastWriteTime:
entry.DateTime = info.LastWriteTime;
break;
case TimeSetting.LastWriteTimeUtc:
entry.DateTime = info.LastWriteTimeUtc;
break;
case TimeSetting.CreateTime:
entry.DateTime = info.CreationTime;
break;
case TimeSetting.CreateTimeUtc:
entry.DateTime = info.CreationTimeUtc;
break;
case TimeSetting.LastAccessTime:
entry.DateTime = info.LastAccessTime;
break;
case TimeSetting.LastAccessTimeUtc:
entry.DateTime = info.LastAccessTimeUtc;
break;
case TimeSetting.Fixed:
entry.DateTime = this.fixedDateTime_;
break;
default:
throw new ZipException("Unhandled time setting in MakeDirectoryEntry");
}
num = ((int) info.Attributes) & this.getAttributes_;
}
num |= this.setAttributes_ | 0x10;
entry.ExternalFileAttributes = num;
return entry;
}
public Stream GetSource(ZipEntry entry, string name)
{
Stream stream = null;
if (name != null)
{
stream = File.Open(name, FileMode.Open, FileAccess.Read, FileShare.Read);
}
return stream;
}
public static void ZipFile(string fileToZip, string zipedFile, int compressionLevel, int blockSize)
{
if (!File.Exists(fileToZip))
{
throw new FileNotFoundException("指定要压缩的文件: " + fileToZip + " 不存在!");
}
using (FileStream stream = File.Create(zipedFile))
{
using (ZipOutputStream stream2 = new ZipOutputStream(stream))
{
using (FileStream stream3 = new FileStream(fileToZip, FileMode.Open, FileAccess.Read))
{
ZipEntry entry = new ZipEntry(fileToZip.Substring(fileToZip.LastIndexOf(@"\") + 1));
stream2.PutNextEntry(entry);
stream2.SetLevel(compressionLevel);
byte[] buffer = new byte[blockSize];
int count = 0;
try
{
do
{
count = stream3.Read(buffer, 0, buffer.Length);
stream2.Write(buffer, 0, count);
}
while (count > 0);
}
catch (Exception exception)
{
throw exception;
}
stream3.Close();
}
stream2.Finish();
stream2.Close();
}
stream.Close();
}
}
private static void ZipSetp(string strDirectory, ZipOutputStream s, string parentPath)
{
if (strDirectory[strDirectory.Length - 1] != Path.DirectorySeparatorChar)
{
strDirectory = strDirectory + Path.DirectorySeparatorChar;
}
Crc32 crc = new Crc32();
string[] fileSystemEntries = Directory.GetFileSystemEntries(strDirectory);
foreach (string str in fileSystemEntries)
{
if (Directory.Exists(str))
{
string str2 = parentPath;
str2 = str2 + str.Substring(str.LastIndexOf(@"\") + 1) + @"\";
ZipSetp(str, s, str2);
}
else
{
using (FileStream stream = File.OpenRead(str))
{
byte[] buffer = new byte[stream.Length];
stream.Read(buffer, 0, buffer.Length);
ZipEntry entry = new ZipEntry(parentPath + str.Substring(str.LastIndexOf(@"\") + 1)) {
DateTime = DateTime.Now,
Size = stream.Length
};
stream.Close();
crc.Reset();
crc.Update(buffer);
entry.Crc = crc.Value;
s.PutNextEntry(entry);
s.Write(buffer, 0, buffer.Length);
}
}
}
}
public ZipUpdate(ZipFile.UpdateCommand command, ZipEntry entry)
{
this.sizePatchOffset_ = -1L;
this.crcPatchOffset_ = -1L;
this._offsetBasedSize = -1L;
this.command_ = command;
this.entry_ = (ZipEntry) entry.Clone();
}
public ZipUpdate(ZipEntry entry) : this(ZipFile.UpdateCommand.Copy, entry)
{
}
private void CompleteCloseEntry(bool testCrc)
{
base.StopDecrypting();
if ((this.flags & 8) != 0)
{
this.ReadDataDescriptor();
}
this.size = 0L;
if ((testCrc && ((((ulong) this.crc.Value) & 0xffffffffL) != this.entry.Crc)) && (this.entry.Crc != -1L))
{
throw new ZipException("CRC mismatch");
}
this.crc.Reset();
if (this.method == 8)
{
base.inf.Reset();
}
this.entry = null;
}
internal void SetEntry(ZipEntry entry)
{
this.entry_ = entry;
this.entryValid_ = true;
this.bytesTested_ = 0L;
}
private Stream CreateAndInitEncryptionStream(Stream baseStream, ZipEntry entry)
{
CryptoStream stream = null;
if ((entry.Version < 50) || ((entry.Flags & 0x40) == 0))
{
PkzipClassicManaged managed = new PkzipClassicManaged();
this.OnKeysRequired(entry.Name);
if (!this.HaveKeys)
{
throw new ZipException("No password available for encrypted stream");
}
stream = new CryptoStream(new UncompressedStream(baseStream), managed.CreateEncryptor(this.key, null), CryptoStreamMode.Write);
if ((entry.Crc < 0L) || ((entry.Flags & 8) != 0))
{
WriteEncryptionHeader(stream, entry.DosTime << 0x10);
return stream;
}
WriteEncryptionHeader(stream, entry.Crc);
}
return stream;
}
protected void InitializeAESPassword(ZipEntry entry, string rawPassword, out byte[] salt, out byte[] pwdVerifier)
{
salt = new byte[entry.AESSaltLen];
if (_aesRnd == null)
{
_aesRnd = new RNGCryptoServiceProvider();
}
_aesRnd.GetBytes(salt);
int blockSize = entry.AESKeySize / 8;
this.cryptoTransform_ = new ZipAESTransform(rawPassword, salt, blockSize, true);
pwdVerifier = ((ZipAESTransform) this.cryptoTransform_).PwdVerifier;
}
private static void CheckClassicPassword(CryptoStream classicCryptoStream, ZipEntry entry)
{
byte[] buffer = new byte[12];
StreamUtils.ReadFully(classicCryptoStream, buffer);
if (buffer[11] != entry.CryptoCheckValue)
{
throw new ZipException("Invalid password");
}
}
private Stream CreateAndInitDecryptionStream(Stream baseStream, ZipEntry entry)
{
CryptoStream classicCryptoStream = null;
if ((entry.Version < 50) || ((entry.Flags & 0x40) == 0))
{
PkzipClassicManaged managed = new PkzipClassicManaged();
this.OnKeysRequired(entry.Name);
if (!this.HaveKeys)
{
throw new ZipException("No password available for encrypted stream");
}
classicCryptoStream = new CryptoStream(baseStream, managed.CreateDecryptor(this.key, null), CryptoStreamMode.Read);
CheckClassicPassword(classicCryptoStream, entry);
return classicCryptoStream;
}
if (entry.Version != 0x33)
{
throw new ZipException("Decryption method not supported");
}
this.OnKeysRequired(entry.Name);
if (!this.HaveKeys)
{
throw new ZipException("No password available for AES encrypted stream");
}
int aESSaltLen = entry.AESSaltLen;
byte[] buffer = new byte[aESSaltLen];
int num2 = baseStream.Read(buffer, 0, aESSaltLen);
if (num2 != aESSaltLen)
{
throw new ZipException(string.Concat(new object[] { "AES Salt expected ", aESSaltLen, " got ", num2 }));
}
byte[] buffer2 = new byte[2];
baseStream.Read(buffer2, 0, 2);
int blockSize = entry.AESKeySize / 8;
ZipAESTransform transform = new ZipAESTransform(this.rawPassword_, buffer, blockSize, false);
byte[] pwdVerifier = transform.PwdVerifier;
if ((pwdVerifier[0] != buffer2[0]) || (pwdVerifier[1] != buffer2[1]))
{
throw new Exception("Invalid password for AES");
}
return new ZipAESStream(baseStream, transform, CryptoStreamMode.Read);
}
public ZipUpdate(string fileName, string entryName, CompressionMethod compressionMethod)
{
this.sizePatchOffset_ = -1L;
this.crcPatchOffset_ = -1L;
this._offsetBasedSize = -1L;
this.command_ = ZipFile.UpdateCommand.Add;
this.entry_ = new ZipEntry(entryName);
this.entry_.CompressionMethod = compressionMethod;
this.filename_ = fileName;
}
public ZipUpdate(IStaticDataSource dataSource, string entryName, CompressionMethod compressionMethod)
{
this.sizePatchOffset_ = -1L;
this.crcPatchOffset_ = -1L;
this._offsetBasedSize = -1L;
this.command_ = ZipFile.UpdateCommand.Add;
this.entry_ = new ZipEntry(entryName);
this.entry_.CompressionMethod = compressionMethod;
this.dataSource_ = dataSource;
}
public ZipUpdate(string fileName, ZipEntry entry)
{
this.sizePatchOffset_ = -1L;
this.crcPatchOffset_ = -1L;
this._offsetBasedSize = -1L;
this.command_ = ZipFile.UpdateCommand.Add;
this.entry_ = entry;
this.filename_ = fileName;
}
public static void ZipFile(string fileToZip, string zipedFile)
{
if (!File.Exists(fileToZip))
{
throw new FileNotFoundException("指定要压缩的文件: " + fileToZip + " 不存在!");
}
using (FileStream stream = File.OpenRead(fileToZip))
{
byte[] buffer = new byte[stream.Length];
stream.Read(buffer, 0, buffer.Length);
stream.Close();
using (FileStream stream2 = File.Create(zipedFile))
{
using (ZipOutputStream stream3 = new ZipOutputStream(stream2))
{
ZipEntry entry = new ZipEntry(fileToZip.Substring(fileToZip.LastIndexOf(@"\") + 1));
stream3.PutNextEntry(entry);
stream3.SetLevel(5);
stream3.Write(buffer, 0, buffer.Length);
stream3.Finish();
stream3.Close();
}
}
}
}
public void Delete(ZipEntry entry)
{
if (entry == null)
{
throw new ArgumentNullException("entry");
}
this.CheckUpdating();
int num = this.FindExistingUpdate(entry);
if (num < 0)
{
throw new ZipException("Cannot find entry to delete");
}
this.contentsEdited_ = true;
this.updates_[num] = null;
this.updateCount_ -= 1L;
}
public ZipUpdate(IStaticDataSource dataSource, ZipEntry entry)
{
this.sizePatchOffset_ = -1L;
this.crcPatchOffset_ = -1L;
this._offsetBasedSize = -1L;
this.command_ = ZipFile.UpdateCommand.Add;
this.entry_ = entry;
this.dataSource_ = dataSource;
}
private int FindExistingUpdate(ZipEntry entry)
{
int num = -1;
string transformedFileName = this.GetTransformedFileName(entry.Name);
if (this.updateIndex_.ContainsKey(transformedFileName))
{
num = (int) this.updateIndex_[transformedFileName];
}
return num;
}
public override void Close()
{
this.internalReader = new ReadDataHandler(this.ReadingNotAvailable);
this.crc = null;
this.entry = null;
base.Close();
}
public ZipEntry MakeFileEntry(string fileName, bool useFileSystem)
{
ZipEntry entry = new ZipEntry(this.nameTransform_.TransformFile(fileName)) {
IsUnicodeText = this.isUnicodeText_
};
int num = 0;
bool flag = this.setAttributes_ != 0;
FileInfo info = null;
if (useFileSystem)
{
info = new FileInfo(fileName);
}
if ((info == null) || !info.Exists)
{
if (this.timeSetting_ == TimeSetting.Fixed)
{
entry.DateTime = this.fixedDateTime_;
}
}
else
{
switch (this.timeSetting_)
{
case TimeSetting.LastWriteTime:
entry.DateTime = info.LastWriteTime;
break;
case TimeSetting.LastWriteTimeUtc:
entry.DateTime = info.LastWriteTimeUtc;
break;
case TimeSetting.CreateTime:
entry.DateTime = info.CreationTime;
break;
case TimeSetting.CreateTimeUtc:
entry.DateTime = info.CreationTimeUtc;
break;
case TimeSetting.LastAccessTime:
entry.DateTime = info.LastAccessTime;
break;
case TimeSetting.LastAccessTimeUtc:
entry.DateTime = info.LastAccessTimeUtc;
break;
case TimeSetting.Fixed:
entry.DateTime = this.fixedDateTime_;
break;
default:
throw new ZipException("Unhandled time setting in MakeFileEntry");
}
entry.Size = info.Length;
flag = true;
num = ((int) info.Attributes) & this.getAttributes_;
}
if (flag)
{
num |= this.setAttributes_;
entry.ExternalFileAttributes = num;
}
return entry;
}
public ZipEntry GetNextEntry()
{
if (this.crc == null)
{
throw new InvalidOperationException("Closed.");
}
if (this.entry != null)
{
this.CloseEntry();
}
int num = base.inputBuffer.ReadLeInt();
switch (num)
{
case 0x2014b50:
case 0x6054b50:
case 0x5054b50:
case 0x7064b50:
case 0x6064b50:
this.Close();
return null;
case 0x30304b50:
case 0x8074b50:
num = base.inputBuffer.ReadLeInt();
break;
}
if (num != 0x4034b50)
{
throw new ZipException("Wrong Local header signature: 0x" + string.Format("{0:X}", num));
}
short versionRequiredToExtract = (short) base.inputBuffer.ReadLeShort();
this.flags = base.inputBuffer.ReadLeShort();
this.method = base.inputBuffer.ReadLeShort();
uint num3 = (uint) base.inputBuffer.ReadLeInt();
int num4 = base.inputBuffer.ReadLeInt();
base.csize = base.inputBuffer.ReadLeInt();
this.size = base.inputBuffer.ReadLeInt();
int num5 = base.inputBuffer.ReadLeShort();
int num6 = base.inputBuffer.ReadLeShort();
bool flag = (this.flags & 1) == 1;
byte[] buffer = new byte[num5];
base.inputBuffer.ReadRawBuffer(buffer);
string name = ZipConstants.ConvertToStringExt(this.flags, buffer);
this.entry = new ZipEntry(name, versionRequiredToExtract);
this.entry.Flags = this.flags;
this.entry.CompressionMethod = (CompressionMethod) this.method;
if ((this.flags & 8) == 0)
{
this.entry.Crc = num4 & ((long) 0xffffffffL);
this.entry.Size = this.size & ((long) 0xffffffffL);
this.entry.CompressedSize = base.csize & ((long) 0xffffffffL);
this.entry.CryptoCheckValue = (byte) ((num4 >> 0x18) & 0xff);
}
else
{
if (num4 != 0)
{
this.entry.Crc = num4 & ((long) 0xffffffffL);
}
if (this.size != 0L)
{
this.entry.Size = this.size & ((long) 0xffffffffL);
}
if (base.csize != 0L)
{
this.entry.CompressedSize = base.csize & ((long) 0xffffffffL);
}
this.entry.CryptoCheckValue = (byte) ((num3 >> 8) & 0xff);
}
this.entry.DosTime = num3;
if (num6 > 0)
{
byte[] buffer2 = new byte[num6];
base.inputBuffer.ReadRawBuffer(buffer2);
this.entry.ExtraData = buffer2;
}
this.entry.ProcessExtraData(true);
if (this.entry.CompressedSize >= 0L)
{
base.csize = this.entry.CompressedSize;
}
if (this.entry.Size >= 0L)
{
this.size = this.entry.Size;
}
if ((this.method == 0) && ((!flag && (base.csize != this.size)) || (flag && ((base.csize - 12L) != this.size))))
{
throw new ZipException("Stored, but compressed != uncompressed");
}
if (this.entry.IsCompressionMethodSupported())
{
this.internalReader = new ReadDataHandler(this.InitialRead);
}
else
{
this.internalReader = new ReadDataHandler(this.ReadingNotSupported);
}
return this.entry;
}
public int WriteDataDescriptor(ZipEntry entry)
{
if (entry == null)
{
throw new ArgumentNullException("entry");
}
int num = 0;
if ((entry.Flags & 8) == 0)
{
return num;
}
this.WriteLEInt(0x8074b50);
this.WriteLEInt((int) entry.Crc);
num += 8;
if (entry.LocalHeaderRequiresZip64)
{
this.WriteLELong(entry.CompressedSize);
this.WriteLELong(entry.Size);
return (num + 0x10);
}
this.WriteLEInt((int) entry.CompressedSize);
this.WriteLEInt((int) entry.Size);
return (num + 8);
}
public Stream GetInputStream(ZipEntry entry)
{
if (entry == null)
{
throw new ArgumentNullException("entry");
}
if (this.isDisposed_)
{
throw new ObjectDisposedException("ZipFile");
}
long zipFileIndex = entry.ZipFileIndex;
if (((zipFileIndex < 0L) || (zipFileIndex >= this.entries_.Length)) || (this.entries_[(int) ((IntPtr) zipFileIndex)].Name != entry.Name))
{
zipFileIndex = this.FindEntry(entry.Name, true);
if (zipFileIndex < 0L)
{
throw new ZipException("Entry cannot be found");
}
}
return this.GetInputStream(zipFileIndex);
}
public ZipUpdate(ZipEntry original, ZipEntry updated)
{
this.sizePatchOffset_ = -1L;
this.crcPatchOffset_ = -1L;
this._offsetBasedSize = -1L;
throw new ZipException("Modify not currently supported");
}
private Stream GetOutputStream(ZipEntry entry)
{
Stream baseStream = this.baseStream_;
if (entry.IsCrypted)
{
baseStream = this.CreateAndInitEncryptionStream(baseStream, entry);
}
CompressionMethod compressionMethod = entry.CompressionMethod;
if (compressionMethod != CompressionMethod.Stored)
{
if (compressionMethod != CompressionMethod.Deflated)
{
throw new ZipException("Unknown compression method " + entry.CompressionMethod);
}
}
else
{
return new UncompressedStream(baseStream);
}
return new DeflaterOutputStream(baseStream, new Deflater(9, true)) { IsStreamOwner = false };
}
private long LocateEntry(ZipEntry entry)
{
return this.TestLocalHeader(entry, HeaderTest.Extract);
}
private void WriteLocalHeader(ZipEntry entry, EntryPatchData patchData)
{
CompressionMethod compressionMethod = entry.CompressionMethod;
bool flag = true;
bool flag2 = false;
this.WriteLEInt(0x4034b50);
this.WriteLEShort(entry.Version);
this.WriteLEShort(entry.Flags);
this.WriteLEShort((byte) compressionMethod);
this.WriteLEInt((int) entry.DosTime);
if (flag)
{
this.WriteLEInt((int) entry.Crc);
if (entry.LocalHeaderRequiresZip64)
{
this.WriteLEInt(-1);
this.WriteLEInt(-1);
}
else
{
this.WriteLEInt(entry.IsCrypted ? (((int) entry.CompressedSize) + 12) : ((int) entry.CompressedSize));
this.WriteLEInt((int) entry.Size);
}
}
else
{
if (patchData != null)
{
patchData.CrcPatchOffset = this.stream_.Position;
}
this.WriteLEInt(0);
if (patchData != null)
{
patchData.SizePatchOffset = this.stream_.Position;
}
if (entry.LocalHeaderRequiresZip64 && flag2)
{
this.WriteLEInt(-1);
this.WriteLEInt(-1);
}
else
{
this.WriteLEInt(0);
this.WriteLEInt(0);
}
}
byte[] buffer = ZipConstants.ConvertToArray(entry.Flags, entry.Name);
if (buffer.Length > 0xffff)
{
throw new ZipException("Entry name too long.");
}
ZipExtraData data = new ZipExtraData(entry.ExtraData);
if (entry.LocalHeaderRequiresZip64 && (flag || flag2))
{
data.StartNewEntry();
if (flag)
{
data.AddLeLong(entry.Size);
data.AddLeLong(entry.CompressedSize);
}
else
{
data.AddLeLong(-1L);
data.AddLeLong(-1L);
}
data.AddNewEntry(1);
if (!data.Find(1))
{
throw new ZipException("Internal error cant find extra data");
}
if (patchData != null)
{
patchData.SizePatchOffset = data.CurrentReadIndex;
}
}
else
{
data.Delete(1);
}
byte[] entryData = data.GetEntryData();
this.WriteLEShort(buffer.Length);
this.WriteLEShort(entryData.Length);
if (buffer.Length > 0)
{
this.stream_.Write(buffer, 0, buffer.Length);
}
if (entry.LocalHeaderRequiresZip64 && flag2)
{
patchData.SizePatchOffset += this.stream_.Position;
}
if (entryData.Length > 0)
{
this.stream_.Write(entryData, 0, entryData.Length);
}
}
public ZipEntryEnumerator(ZipEntry[] entries)
{
this.array = entries;
}
