| public Delete ( int headerID ) : bool | ||
| headerID | int | The identifier of the field to delete. |
| 리턴 | bool | |
private void WriteLocalHeader(ZipEntry entry, EntryPatchData patchData)
{
CompressionMethod compressionMethod = entry.CompressionMethod;
bool flag = true;
bool flag2 = false;
this.WriteLEInt(67324752);
this.WriteLEShort(entry.Version);
this.WriteLEShort(entry.Flags);
this.WriteLEShort((int)((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) : ((int)entry.CompressedSize + 12));
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[] array = ZipConstants.ConvertToArray(entry.Flags, entry.Name);
if (array.Length > 65535)
{
throw new Exception("Entry name too long.");
}
ZipExtraData zipExtraData = new ZipExtraData(entry.ExtraData);
if (entry.LocalHeaderRequiresZip64 && (flag || flag2))
{
zipExtraData.StartNewEntry();
if (flag)
{
zipExtraData.AddLeLong(entry.Size);
zipExtraData.AddLeLong(entry.CompressedSize);
}
else
{
zipExtraData.AddLeLong(-1L);
zipExtraData.AddLeLong(-1L);
}
zipExtraData.AddNewEntry(1);
if (!zipExtraData.Find(1))
{
throw new Exception("Internal error cant find extra data");
}
if (patchData != null)
{
patchData.SizePatchOffset = (long)zipExtraData.CurrentReadIndex;
}
}
else
{
zipExtraData.Delete(1);
}
byte[] entryData = zipExtraData.GetEntryData();
this.WriteLEShort(array.Length);
this.WriteLEShort(entryData.Length);
if (array.Length > 0)
{
this.stream_.Write(array, 0, array.Length);
}
if (entry.LocalHeaderRequiresZip64 && flag2)
{
patchData.SizePatchOffset += this.stream_.Position;
}
if (entryData.Length > 0)
{
this.stream_.Write(entryData, 0, entryData.Length);
}
}
public void Deleting()
{
ZipExtraData zed = new ZipExtraData();
Assert.AreEqual(0, zed.Length);
// Tag 1 Totoal length 10
zed.AddEntry(1, new byte[] { 10, 11, 12, 13, 14, 15 });
Assert.AreEqual(10, zed.Length, "Length should be 10");
Assert.AreEqual(10, zed.GetEntryData().Length, "Data length should be 10");
// Tag 2 total length 9
zed.AddEntry(2, new byte[] { 20, 21, 22, 23, 24 });
Assert.AreEqual(19, zed.Length, "Length should be 19");
Assert.AreEqual(19, zed.GetEntryData().Length, "Data length should be 19");
// Tag 3 Total Length 6
zed.AddEntry(3, new byte[] { 30, 31 });
Assert.AreEqual(25, zed.Length, "Length should be 25");
Assert.AreEqual(25, zed.GetEntryData().Length, "Data length should be 25");
zed.Delete(2);
Assert.AreEqual(16, zed.Length, "Length should be 16");
Assert.AreEqual(16, zed.GetEntryData().Length, "Data length should be 16");
// Tag 2 total length 9
zed.AddEntry(2, new byte[] { 20, 21, 22, 23, 24 });
Assert.AreEqual(25, zed.Length, "Length should be 25");
Assert.AreEqual(25, zed.GetEntryData().Length, "Data length should be 25");
zed.AddEntry(3, null);
Assert.AreEqual(23, zed.Length, "Length should be 23");
Assert.AreEqual(23, zed.GetEntryData().Length, "Data length should be 23");
}
int WriteCentralDirectoryHeader(ZipEntry entry)
{
if ( entry.CompressedSize < 0 ) {
throw new ZipException("Attempt to write central directory entry with unknown csize");
}
if ( entry.Size < 0 ) {
throw new ZipException("Attempt to write central directory entry with unknown size");
}
if ( entry.Crc < 0 ) {
throw new ZipException("Attempt to write central directory entry with unknown crc");
}
WriteLEInt(ZipConstants.CentralHeaderSignature);
WriteLEShort(ZipConstants.VersionMadeBy);
WriteLEShort(entry.Version);
WriteLEShort(entry.Flags);
unchecked {
WriteLEShort((byte)entry.CompressionMethod);
WriteLEInt((int)entry.DosTime);
WriteLEInt((int)entry.Crc);
}
if ( (entry.IsZip64Forced()) || (entry.CompressedSize >= 0xffffffff) ) {
WriteLEInt(-1);
}
else {
WriteLEInt((int)(entry.CompressedSize & 0xffffffff));
}
if ( (entry.IsZip64Forced()) || (entry.Size >= 0xffffffff) ) {
WriteLEInt(-1);
}
else {
WriteLEInt((int)entry.Size);
}
byte[] name = ZipConstants.ConvertToArray(entry.Flags, entry.Name);
if ( name.Length > 0xFFFF ) {
throw new ZipException("Entry name is too long.");
}
WriteLEShort(name.Length);
ZipExtraData ed = new ZipExtraData(entry.ExtraData);
if ( entry.CentralHeaderRequiresZip64 ) {
ed.StartNewEntry();
if ( (entry.Size >= 0xffffffff) || (useZip64_ == UseZip64.On) )
{
ed.AddLeLong(entry.Size);
}
if ( (entry.CompressedSize >= 0xffffffff) || (useZip64_ == UseZip64.On) )
{
ed.AddLeLong(entry.CompressedSize);
}
if ( entry.Offset >= 0xffffffff ) {
ed.AddLeLong(entry.Offset);
}
ed.AddNewEntry(1);
}
else {
ed.Delete(1);
}
byte[] centralExtraData = ed.GetEntryData();
WriteLEShort(centralExtraData.Length);
WriteLEShort(entry.Comment != null ? entry.Comment.Length : 0);
WriteLEShort(0);
WriteLEShort(0);
if ( entry.ExternalFileAttributes != -1 ) {
WriteLEInt(entry.ExternalFileAttributes);
}
else {
if ( entry.IsDirectory ) {
WriteLEUint(16);
}
else {
WriteLEUint(0);
}
}
if ( entry.Offset >= 0xffffffff ) {
WriteLEUint(0xffffffff);
}
else {
WriteLEUint((uint)(int)entry.Offset);
}
if ( name.Length > 0 ) {
baseStream_.Write(name, 0, name.Length);
}
if ( centralExtraData.Length > 0 ) {
baseStream_.Write(centralExtraData, 0, centralExtraData.Length);
}
byte[] rawComment = (entry.Comment != null) ? Encoding.ASCII.GetBytes(entry.Comment) : new byte[0];
if ( rawComment.Length > 0 ) {
baseStream_.Write(rawComment, 0, rawComment.Length);
}
return ZipConstants.CentralHeaderBaseSize + name.Length + centralExtraData.Length + rawComment.Length;
}
void WriteLocalEntryHeader(ZipUpdate update)
{
ZipEntry entry = update.OutEntry;
entry.Offset = baseStream_.Position;
if (update.Command != UpdateCommand.Copy) {
if (entry.CompressionMethod == CompressionMethod.Deflated) {
if (entry.Size == 0) {
entry.CompressedSize = entry.Size;
entry.Crc = 0;
entry.CompressionMethod = CompressionMethod.Stored;
}
}
else if (entry.CompressionMethod == CompressionMethod.Stored) {
entry.Flags &= ~(int)GeneralBitFlags.Descriptor;
}
if (HaveKeys) {
entry.IsCrypted = true;
if (entry.Crc < 0) {
entry.Flags |= (int)GeneralBitFlags.Descriptor;
}
}
else {
entry.IsCrypted = false;
}
switch (useZip64_) {
case UseZip64.Dynamic:
if (entry.Size < 0) {
entry.ForceZip64();
}
break;
case UseZip64.On:
entry.ForceZip64();
break;
case UseZip64.Off:
break;
}
}
WriteLEInt(ZipConstants.LocalHeaderSignature);
WriteLEShort(entry.Version);
WriteLEShort(entry.Flags);
WriteLEShort((byte)entry.CompressionMethod);
WriteLEInt(( int )entry.DosTime);
if ( !entry.HasCrc ) {
update.CrcPatchOffset = baseStream_.Position;
WriteLEInt(( int )0);
}
else {
WriteLEInt(unchecked(( int )entry.Crc));
}
if (entry.LocalHeaderRequiresZip64) {
WriteLEInt(-1);
WriteLEInt(-1);
}
else {
if ( (entry.CompressedSize < 0) || (entry.Size < 0) ) {
update.SizePatchOffset = baseStream_.Position;
}
WriteLEInt(( int )entry.CompressedSize);
WriteLEInt(( int )entry.Size);
}
byte[] name = ZipConstants.ConvertToArray(entry.Flags, entry.Name);
if ( name.Length > 0xFFFF ) {
throw new ZipException("Entry name too long.");
}
ZipExtraData ed = new ZipExtraData(entry.ExtraData);
if ( entry.LocalHeaderRequiresZip64 ) {
ed.StartNewEntry();
ed.AddLeLong(entry.Size);
ed.AddLeLong(entry.CompressedSize);
ed.AddNewEntry(1);
}
else {
ed.Delete(1);
}
entry.ExtraData = ed.GetEntryData();
WriteLEShort(name.Length);
WriteLEShort(entry.ExtraData.Length);
if ( name.Length > 0 ) {
baseStream_.Write(name, 0, name.Length);
}
if ( entry.LocalHeaderRequiresZip64 ) {
if ( !ed.Find(1) ) {
throw new ZipException("Internal error cannot find extra data");
}
update.SizePatchOffset = baseStream_.Position + ed.CurrentReadIndex;
}
if ( entry.ExtraData.Length > 0 ) {
baseStream_.Write(entry.ExtraData, 0, entry.ExtraData.Length);
}
}
void WriteLocalEntryHeader(ZipUpdate update)
{
ZipEntry entry = update.OutEntry;
// TODO: Local offset will require adjusting for multi-disk zip files.
entry.Offset = baseStream_.Position;
// TODO: Need to clear any entry flags that dont make sense or throw an exception here.
if (update.Command != UpdateCommand.Copy) {
if (entry.CompressionMethod == CompressionMethod.Deflated) {
if (entry.Size == 0) {
// No need to compress - no data.
entry.CompressedSize = entry.Size;
entry.Crc = 0;
entry.CompressionMethod = CompressionMethod.Stored;
}
}
else if (entry.CompressionMethod == CompressionMethod.Stored) {
entry.Flags &= ~(int)GeneralBitFlags.Descriptor;
}
if (HaveKeys) {
entry.IsCrypted = true;
if (entry.Crc < 0) {
entry.Flags |= (int)GeneralBitFlags.Descriptor;
}
}
else {
entry.IsCrypted = false;
}
switch (useZip64_) {
case UseZip64.Dynamic:
if (entry.Size < 0) {
entry.ForceZip64();
}
break;
case UseZip64.On:
entry.ForceZip64();
break;
case UseZip64.Off:
// Do nothing. The entry itself may be using Zip64 independantly.
break;
}
}
// Write the local file header
WriteLEInt(ZipConstants.LocalHeaderSignature);
WriteLEShort(entry.Version);
WriteLEShort(entry.Flags);
WriteLEShort((byte)entry.CompressionMethod);
WriteLEInt(( int )entry.DosTime);
if ( !entry.HasCrc ) {
// Note patch address for updating CRC later.
update.CrcPatchOffset = baseStream_.Position;
WriteLEInt(( int )0);
}
else {
WriteLEInt(unchecked(( int )entry.Crc));
}
if (entry.LocalHeaderRequiresZip64) {
WriteLEInt(-1);
WriteLEInt(-1);
}
else {
if ( (entry.CompressedSize < 0) || (entry.Size < 0) ) {
update.SizePatchOffset = baseStream_.Position;
}
WriteLEInt(( int )entry.CompressedSize);
WriteLEInt(( int )entry.Size);
}
byte[] name = ZipConstants.ConvertToArray(entry.Flags, entry.Name);
if ( name.Length > 0xFFFF ) {
throw new ZipException("Entry name too long.");
}
ZipExtraData ed = new ZipExtraData(entry.ExtraData);
if ( entry.LocalHeaderRequiresZip64 ) {
ed.StartNewEntry();
// Local entry header always includes size and compressed size.
// NOTE the order of these fields is reversed when compared to the normal headers!
ed.AddLeLong(entry.Size);
ed.AddLeLong(entry.CompressedSize);
ed.AddNewEntry(1);
}
else {
ed.Delete(1);
}
entry.ExtraData = ed.GetEntryData();
WriteLEShort(name.Length);
WriteLEShort(entry.ExtraData.Length);
if ( name.Length > 0 ) {
baseStream_.Write(name, 0, name.Length);
}
if ( entry.LocalHeaderRequiresZip64 ) {
if ( !ed.Find(1) ) {
throw new ZipException("Internal error cannot find extra data");
}
update.SizePatchOffset = baseStream_.Position + ed.CurrentReadIndex;
}
if ( entry.ExtraData.Length > 0 ) {
baseStream_.Write(entry.ExtraData, 0, entry.ExtraData.Length);
}
}
public override void Finish()
{
if (entries != null)
{
if (curEntry != null)
{
CloseEntry();
}
long noOfEntries = entries.Count;
long num = 0L;
foreach (ZipEntry entry in entries)
{
WriteLeInt(33639248);
WriteLeShort(51);
WriteLeShort(entry.Version);
WriteLeShort(entry.Flags);
WriteLeShort((short)entry.CompressionMethodForHeader);
WriteLeInt((int)entry.DosTime);
WriteLeInt((int)entry.Crc);
if (entry.IsZip64Forced() || entry.CompressedSize >= uint.MaxValue)
{
WriteLeInt(-1);
}
else
{
WriteLeInt((int)entry.CompressedSize);
}
if (entry.IsZip64Forced() || entry.Size >= uint.MaxValue)
{
WriteLeInt(-1);
}
else
{
WriteLeInt((int)entry.Size);
}
byte[] array = ZipConstants.ConvertToArray(entry.Flags, entry.Name);
if (array.Length > 65535)
{
throw new ZipException("Name too long.");
}
ZipExtraData zipExtraData = new ZipExtraData(entry.ExtraData);
if (entry.CentralHeaderRequiresZip64)
{
zipExtraData.StartNewEntry();
if (entry.IsZip64Forced() || entry.Size >= uint.MaxValue)
{
zipExtraData.AddLeLong(entry.Size);
}
if (entry.IsZip64Forced() || entry.CompressedSize >= uint.MaxValue)
{
zipExtraData.AddLeLong(entry.CompressedSize);
}
if (entry.Offset >= uint.MaxValue)
{
zipExtraData.AddLeLong(entry.Offset);
}
zipExtraData.AddNewEntry(1);
}
else
{
zipExtraData.Delete(1);
}
if (entry.AESKeySize > 0)
{
AddExtraDataAES(entry, zipExtraData);
}
byte[] entryData = zipExtraData.GetEntryData();
byte[] array2 = (entry.Comment != null) ? ZipConstants.ConvertToArray(entry.Flags, entry.Comment) : new byte[0];
if (array2.Length > 65535)
{
throw new ZipException("Comment too long.");
}
WriteLeShort(array.Length);
WriteLeShort(entryData.Length);
WriteLeShort(array2.Length);
WriteLeShort(0);
WriteLeShort(0);
if (entry.ExternalFileAttributes != -1)
{
WriteLeInt(entry.ExternalFileAttributes);
}
else if (entry.IsDirectory)
{
WriteLeInt(16);
}
else
{
WriteLeInt(0);
}
if (entry.Offset >= uint.MaxValue)
{
WriteLeInt(-1);
}
else
{
WriteLeInt((int)entry.Offset);
}
if (array.Length > 0)
{
baseOutputStream_.Write(array, 0, array.Length);
}
if (entryData.Length > 0)
{
baseOutputStream_.Write(entryData, 0, entryData.Length);
}
if (array2.Length > 0)
{
baseOutputStream_.Write(array2, 0, array2.Length);
}
num += 46 + array.Length + entryData.Length + array2.Length;
}
using (ZipHelperStream zipHelperStream = new ZipHelperStream(baseOutputStream_))
{
zipHelperStream.WriteEndOfCentralDirectory(noOfEntries, num, offset, zipComment);
}
entries = null;
}
}
private void WriteLocalEntryHeader(ZipUpdate update)
{
ZipEntry outEntry = update.OutEntry;
outEntry.Offset = this.baseStream_.Position;
if (update.Command != UpdateCommand.Copy)
{
if (outEntry.CompressionMethod == CompressionMethod.Deflated)
{
if (outEntry.Size == 0L)
{
outEntry.CompressedSize = outEntry.Size;
outEntry.Crc = 0L;
outEntry.CompressionMethod = CompressionMethod.Stored;
}
}
else if (outEntry.CompressionMethod == CompressionMethod.Stored)
{
outEntry.Flags &= -9;
}
if (this.HaveKeys)
{
outEntry.IsCrypted = true;
if (outEntry.Crc < 0L)
{
outEntry.Flags |= 8;
}
}
else
{
outEntry.IsCrypted = false;
}
switch (this.useZip64_)
{
case ICSharpCode.SharpZipLib.Zip.UseZip64.On:
outEntry.ForceZip64();
break;
case ICSharpCode.SharpZipLib.Zip.UseZip64.Dynamic:
if (outEntry.Size < 0L)
{
outEntry.ForceZip64();
}
break;
}
}
this.WriteLEInt(0x4034b50);
this.WriteLEShort(outEntry.Version);
this.WriteLEShort(outEntry.Flags);
this.WriteLEShort((byte) outEntry.CompressionMethod);
this.WriteLEInt((int) outEntry.DosTime);
if (!outEntry.HasCrc)
{
update.CrcPatchOffset = this.baseStream_.Position;
this.WriteLEInt(0);
}
else
{
this.WriteLEInt((int) outEntry.Crc);
}
if (outEntry.LocalHeaderRequiresZip64)
{
this.WriteLEInt(-1);
this.WriteLEInt(-1);
}
else
{
if ((outEntry.CompressedSize < 0L) || (outEntry.Size < 0L))
{
update.SizePatchOffset = this.baseStream_.Position;
}
this.WriteLEInt((int) outEntry.CompressedSize);
this.WriteLEInt((int) outEntry.Size);
}
byte[] buffer = ZipConstants.ConvertToArray(outEntry.Flags, outEntry.Name);
if (buffer.Length > 0xffff)
{
throw new ZipException("Entry name too long.");
}
ZipExtraData data = new ZipExtraData(outEntry.ExtraData);
if (outEntry.LocalHeaderRequiresZip64)
{
data.StartNewEntry();
data.AddLeLong(outEntry.Size);
data.AddLeLong(outEntry.CompressedSize);
data.AddNewEntry(1);
}
else
{
data.Delete(1);
}
outEntry.ExtraData = data.GetEntryData();
this.WriteLEShort(buffer.Length);
this.WriteLEShort(outEntry.ExtraData.Length);
if (buffer.Length > 0)
{
this.baseStream_.Write(buffer, 0, buffer.Length);
}
if (outEntry.LocalHeaderRequiresZip64)
{
if (!data.Find(1))
{
throw new ZipException("Internal error cannot find extra data");
}
update.SizePatchOffset = this.baseStream_.Position + data.CurrentReadIndex;
}
if (outEntry.ExtraData.Length > 0)
{
this.baseStream_.Write(outEntry.ExtraData, 0, outEntry.ExtraData.Length);
}
}
/// <summary>
/// Finishes the stream. This will write the central directory at the
/// end of the zip file and flush the stream.
/// </summary>
/// <remarks>
/// This is automatically called when the stream is closed.
/// </remarks>
/// <exception cref="System.IO.IOException">
/// An I/O error occurs.
/// </exception>
/// <exception cref="ZipException">
/// Comment exceeds the maximum length<br/>
/// Entry name exceeds the maximum length
/// </exception>
public override void Finish()
{
if (entries == null)
{
return;
}
if (curEntry != null)
{
CloseEntry();
}
long numEntries = entries.Count;
long sizeEntries = 0;
foreach (ZipEntry entry in entries)
{
WriteLeInt(ZipConstants.CentralHeaderSignature);
WriteLeShort(ZipConstants.VersionMadeBy);
WriteLeShort(entry.Version);
WriteLeShort(entry.Flags);
WriteLeShort((short) entry.CompressionMethodForHeader);
WriteLeInt((int) entry.DosTime);
WriteLeInt((int) entry.Crc);
if (entry.IsZip64Forced() ||
(entry.CompressedSize >= uint.MaxValue))
{
WriteLeInt(-1);
}
else
{
WriteLeInt((int) entry.CompressedSize);
}
if (entry.IsZip64Forced() ||
(entry.Size >= uint.MaxValue))
{
WriteLeInt(-1);
}
else
{
WriteLeInt((int) entry.Size);
}
byte[] name = ZipConstants.ConvertToArray(entry.Flags, entry.Name);
if (name.Length > 0xffff)
{
throw new ZipException("Name too long.");
}
var ed = new ZipExtraData(entry.ExtraData);
if (entry.CentralHeaderRequiresZip64)
{
ed.StartNewEntry();
if (entry.IsZip64Forced() ||
(entry.Size >= 0xffffffff))
{
ed.AddLeLong(entry.Size);
}
if (entry.IsZip64Forced() ||
(entry.CompressedSize >= 0xffffffff))
{
ed.AddLeLong(entry.CompressedSize);
}
if (entry.Offset >= 0xffffffff)
{
ed.AddLeLong(entry.Offset);
}
ed.AddNewEntry(1);
}
else
{
ed.Delete(1);
}
#if !NET_1_1 && !NETCF_2_0
if (entry.AESKeySize > 0)
{
AddExtraDataAES(entry, ed);
}
#endif
byte[] extra = ed.GetEntryData();
byte[] entryComment =
(entry.Comment != null)
? ZipConstants.ConvertToArray(entry.Flags, entry.Comment)
: new byte[0];
if (entryComment.Length > 0xffff)
{
throw new ZipException("Comment too long.");
}
WriteLeShort(name.Length);
WriteLeShort(extra.Length);
WriteLeShort(entryComment.Length);
WriteLeShort(0); // disk number
WriteLeShort(0); // internal file attributes
// external file attributes
if (entry.ExternalFileAttributes != -1)
{
WriteLeInt(entry.ExternalFileAttributes);
}
else
{
if (entry.IsDirectory)
{
// mark entry as directory (from nikolam.AT.perfectinfo.com)
WriteLeInt(16);
}
else
{
WriteLeInt(0);
}
}
if (entry.Offset >= uint.MaxValue)
{
WriteLeInt(-1);
}
else
{
WriteLeInt((int) entry.Offset);
}
if (name.Length > 0)
{
baseOutputStream_.Write(name, 0, name.Length);
}
if (extra.Length > 0)
{
baseOutputStream_.Write(extra, 0, extra.Length);
}
if (entryComment.Length > 0)
{
baseOutputStream_.Write(entryComment, 0, entryComment.Length);
}
sizeEntries += ZipConstants.CentralHeaderBaseSize + name.Length + extra.Length + entryComment.Length;
}
using (var zhs = new ZipHelperStream(baseOutputStream_))
{
zhs.WriteEndOfCentralDirectory(numEntries, sizeEntries, offset, zipComment);
}
entries = null;
}
// Write the local file header
// TODO: ZipHelperStream.WriteLocalHeader is not yet used and needs checking for ZipFile and ZipOuptutStream usage
void WriteLocalHeader(ZipEntry entry, EntryPatchData patchData)
{
CompressionMethod method = entry.CompressionMethod;
bool headerInfoAvailable = true; // How to get this?
bool patchEntryHeader = false;
WriteLEInt(ZipConstants.LocalHeaderSignature);
WriteLEShort(entry.Version);
WriteLEShort(entry.Flags);
WriteLEShort((byte)method);
WriteLEInt((int)entry.DosTime);
if (headerInfoAvailable == true)
{
WriteLEInt((int)entry.Crc);
if (entry.LocalHeaderRequiresZip64)
{
WriteLEInt(-1);
WriteLEInt(-1);
}
else
{
WriteLEInt(entry.IsCrypted ? (int)entry.CompressedSize + ZipConstants.CryptoHeaderSize : (int)entry.CompressedSize);
WriteLEInt((int)entry.Size);
}
}
else
{
if (patchData != null)
{
patchData.CrcPatchOffset = stream_.Position;
}
WriteLEInt(0); // Crc
if (patchData != null)
{
patchData.SizePatchOffset = stream_.Position;
}
// For local header both sizes appear in Zip64 Extended Information
if (entry.LocalHeaderRequiresZip64 && patchEntryHeader)
{
WriteLEInt(-1);
WriteLEInt(-1);
}
else
{
WriteLEInt(0); // Compressed size
WriteLEInt(0); // Uncompressed size
}
}
byte[] name = ZipConstants.ConvertToArray(entry.Flags, entry.Name);
if (name.Length > 0xFFFF)
{
throw new ZipException("Entry name too long.");
}
var ed = new ZipExtraData(entry.ExtraData);
if (entry.LocalHeaderRequiresZip64 && (headerInfoAvailable || patchEntryHeader))
{
ed.StartNewEntry();
if (headerInfoAvailable)
{
ed.AddLeLong(entry.Size);
ed.AddLeLong(entry.CompressedSize);
}
else
{
ed.AddLeLong(-1);
ed.AddLeLong(-1);
}
ed.AddNewEntry(1);
if (!ed.Find(1))
{
throw new ZipException("Internal error cant find extra data");
}
if (patchData != null)
{
patchData.SizePatchOffset = ed.CurrentReadIndex;
}
}
else
{
ed.Delete(1);
}
byte[] extra = ed.GetEntryData();
WriteLEShort(name.Length);
WriteLEShort(extra.Length);
if (name.Length > 0)
{
stream_.Write(name, 0, name.Length);
}
if (entry.LocalHeaderRequiresZip64 && patchEntryHeader)
{
patchData.SizePatchOffset += stream_.Position;
}
if (extra.Length > 0)
{
stream_.Write(extra, 0, extra.Length);
}
}
private int WriteCentralDirectoryHeader(ZipEntry entry)
{
if (entry.CompressedSize < 0L)
{
throw new ZipException("Attempt to write central directory entry with unknown csize");
}
if (entry.Size < 0L)
{
throw new ZipException("Attempt to write central directory entry with unknown size");
}
if (entry.Crc < 0L)
{
throw new ZipException("Attempt to write central directory entry with unknown crc");
}
this.WriteLEInt(0x2014b50);
this.WriteLEShort(0x33);
this.WriteLEShort(entry.Version);
this.WriteLEShort(entry.Flags);
this.WriteLEShort((byte) entry.CompressionMethod);
this.WriteLEInt((int) entry.DosTime);
this.WriteLEInt((int) entry.Crc);
if (entry.IsZip64Forced() || (entry.CompressedSize >= 0xffffffffL))
{
this.WriteLEInt(-1);
}
else
{
this.WriteLEInt((int) (((ulong) entry.CompressedSize) & 0xffffffffL));
}
if (entry.IsZip64Forced() || (entry.Size >= 0xffffffffL))
{
this.WriteLEInt(-1);
}
else
{
this.WriteLEInt((int) entry.Size);
}
byte[] buffer = ZipConstants.ConvertToArray(entry.Flags, entry.Name);
if (buffer.Length > 0xffff)
{
throw new ZipException("Entry name is too long.");
}
this.WriteLEShort(buffer.Length);
ZipExtraData data = new ZipExtraData(entry.ExtraData);
if (entry.CentralHeaderRequiresZip64)
{
data.StartNewEntry();
if ((entry.Size >= 0xffffffffL) || (this.useZip64_ == ICSharpCode.SharpZipLib.Zip.UseZip64.On))
{
data.AddLeLong(entry.Size);
}
if ((entry.CompressedSize >= 0xffffffffL) || (this.useZip64_ == ICSharpCode.SharpZipLib.Zip.UseZip64.On))
{
data.AddLeLong(entry.CompressedSize);
}
if (entry.Offset >= 0xffffffffL)
{
data.AddLeLong(entry.Offset);
}
data.AddNewEntry(1);
}
else
{
data.Delete(1);
}
byte[] entryData = data.GetEntryData();
this.WriteLEShort(entryData.Length);
this.WriteLEShort((entry.Comment != null) ? entry.Comment.Length : 0);
this.WriteLEShort(0);
this.WriteLEShort(0);
if (entry.ExternalFileAttributes != -1)
{
this.WriteLEInt(entry.ExternalFileAttributes);
}
else if (entry.IsDirectory)
{
this.WriteLEUint(0x10);
}
else
{
this.WriteLEUint(0);
}
if (entry.Offset >= 0xffffffffL)
{
this.WriteLEUint(uint.MaxValue);
}
else
{
this.WriteLEUint((uint) ((int) entry.Offset));
}
if (buffer.Length > 0)
{
this.baseStream_.Write(buffer, 0, buffer.Length);
}
if (entryData.Length > 0)
{
this.baseStream_.Write(entryData, 0, entryData.Length);
}
byte[] buffer3 = (entry.Comment != null) ? Encoding.ASCII.GetBytes(entry.Comment) : new byte[0];
if (buffer3.Length > 0)
{
this.baseStream_.Write(buffer3, 0, buffer3.Length);
}
return (((0x2e + buffer.Length) + entryData.Length) + buffer3.Length);
}
private void WriteLocalHeader(ZipEntry entry, EntryPatchData patchData)
{
CompressionMethod compressionMethod = entry.CompressionMethod;
bool flag = true;
bool flag2 = false;
this.WriteLEInt(67324752);
this.WriteLEShort(entry.Version);
this.WriteLEShort(entry.Flags);
this.WriteLEShort((int)((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) : ((int)entry.CompressedSize + 12));
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[] array = ZipConstants.ConvertToArray(entry.Flags, entry.Name);
if (array.Length > 65535)
{
throw new Exception("Entry name too long.");
}
ZipExtraData zipExtraData = new ZipExtraData(entry.ExtraData);
if (entry.LocalHeaderRequiresZip64 && (flag || flag2))
{
zipExtraData.StartNewEntry();
if (flag)
{
zipExtraData.AddLeLong(entry.Size);
zipExtraData.AddLeLong(entry.CompressedSize);
}
else
{
zipExtraData.AddLeLong(-1L);
zipExtraData.AddLeLong(-1L);
}
zipExtraData.AddNewEntry(1);
if (!zipExtraData.Find(1))
{
throw new Exception("Internal error cant find extra data");
}
if (patchData != null)
{
patchData.SizePatchOffset = (long)zipExtraData.CurrentReadIndex;
}
}
else
{
zipExtraData.Delete(1);
}
byte[] entryData = zipExtraData.GetEntryData();
this.WriteLEShort(array.Length);
this.WriteLEShort(entryData.Length);
if (array.Length > 0)
{
this.stream_.Write(array, 0, array.Length);
}
if (entry.LocalHeaderRequiresZip64 && flag2)
{
patchData.SizePatchOffset += this.stream_.Position;
}
if (entryData.Length > 0)
{
this.stream_.Write(entryData, 0, entryData.Length);
}
}
public void PutNextEntry(ZipEntry entry)
{
bool hasCrc;
if (entry == null)
{
throw new ArgumentNullException("entry");
}
if (this.entries == null)
{
throw new InvalidOperationException("ZipOutputStream was finished");
}
if (this.curEntry != null)
{
this.CloseEntry();
}
if (this.entries.Count == 0x7fffffff)
{
throw new ZipException("Too many entries for Zip file");
}
CompressionMethod compressionMethod = entry.CompressionMethod;
int defaultCompressionLevel = this.defaultCompressionLevel;
entry.Flags &= 0x800;
this.patchEntryHeader = false;
if (entry.Size == 0L)
{
entry.CompressedSize = entry.Size;
entry.Crc = 0L;
compressionMethod = CompressionMethod.Stored;
hasCrc = true;
}
else
{
hasCrc = ((entry.Size >= 0L) && entry.HasCrc) && (entry.CompressedSize >= 0L);
if (compressionMethod == CompressionMethod.Stored)
{
if (!hasCrc)
{
if (!base.CanPatchEntries)
{
compressionMethod = CompressionMethod.Deflated;
defaultCompressionLevel = 0;
}
}
else
{
entry.CompressedSize = entry.Size;
hasCrc = entry.HasCrc;
}
}
}
if (!hasCrc)
{
if (!base.CanPatchEntries)
{
entry.Flags |= 8;
}
else
{
this.patchEntryHeader = true;
}
}
if (base.Password != null)
{
entry.IsCrypted = true;
if (entry.Crc < 0L)
{
entry.Flags |= 8;
}
}
entry.Offset = this.offset;
entry.CompressionMethod = compressionMethod;
this.curMethod = compressionMethod;
this.sizePatchPos = -1L;
if ((this.useZip64_ == ICSharpCode.SharpZipLib.Zip.UseZip64.On) || ((entry.Size < 0L) && (this.useZip64_ == ICSharpCode.SharpZipLib.Zip.UseZip64.Dynamic)))
{
entry.ForceZip64();
}
this.WriteLeInt(0x4034b50);
this.WriteLeShort(entry.Version);
this.WriteLeShort(entry.Flags);
this.WriteLeShort((byte) entry.CompressionMethodForHeader);
this.WriteLeInt((int) entry.DosTime);
if (hasCrc)
{
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 (this.patchEntryHeader)
{
this.crcPatchPos = base.baseOutputStream_.Position;
}
this.WriteLeInt(0);
if (this.patchEntryHeader)
{
this.sizePatchPos = base.baseOutputStream_.Position;
}
if (entry.LocalHeaderRequiresZip64 || this.patchEntryHeader)
{
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 extraData = new ZipExtraData(entry.ExtraData);
if (entry.LocalHeaderRequiresZip64)
{
extraData.StartNewEntry();
if (hasCrc)
{
extraData.AddLeLong(entry.Size);
extraData.AddLeLong(entry.CompressedSize);
}
else
{
extraData.AddLeLong(-1L);
extraData.AddLeLong(-1L);
}
extraData.AddNewEntry(1);
if (!extraData.Find(1))
{
throw new ZipException("Internal error cant find extra data");
}
if (this.patchEntryHeader)
{
this.sizePatchPos = extraData.CurrentReadIndex;
}
}
else
{
extraData.Delete(1);
}
if (entry.AESKeySize > 0)
{
AddExtraDataAES(entry, extraData);
}
byte[] entryData = extraData.GetEntryData();
this.WriteLeShort(buffer.Length);
this.WriteLeShort(entryData.Length);
if (buffer.Length > 0)
{
base.baseOutputStream_.Write(buffer, 0, buffer.Length);
}
if (entry.LocalHeaderRequiresZip64 && this.patchEntryHeader)
{
this.sizePatchPos += base.baseOutputStream_.Position;
}
if (entryData.Length > 0)
{
base.baseOutputStream_.Write(entryData, 0, entryData.Length);
}
this.offset += (30 + buffer.Length) + entryData.Length;
if (entry.AESKeySize > 0)
{
this.offset += entry.AESOverheadSize;
}
this.curEntry = entry;
this.crc.Reset();
if (compressionMethod == CompressionMethod.Deflated)
{
base.deflater_.Reset();
base.deflater_.SetLevel(defaultCompressionLevel);
}
this.size = 0L;
if (entry.IsCrypted)
{
if (entry.AESKeySize > 0)
{
this.WriteAESHeader(entry);
}
else if (entry.Crc < 0L)
{
this.WriteEncryptionHeader(entry.DosTime << 0x10);
}
else
{
this.WriteEncryptionHeader(entry.Crc);
}
}
}
public override void Finish()
{
if (this.entries != null)
{
if (this.curEntry != null)
{
this.CloseEntry();
}
long count = this.entries.Count;
long sizeEntries = 0L;
foreach (ZipEntry entry in this.entries)
{
this.WriteLeInt(0x2014b50);
this.WriteLeShort(0x33);
this.WriteLeShort(entry.Version);
this.WriteLeShort(entry.Flags);
this.WriteLeShort((short) entry.CompressionMethodForHeader);
this.WriteLeInt((int) entry.DosTime);
this.WriteLeInt((int) entry.Crc);
if (entry.IsZip64Forced() || (entry.CompressedSize >= 0xffffffffL))
{
this.WriteLeInt(-1);
}
else
{
this.WriteLeInt((int) entry.CompressedSize);
}
if (entry.IsZip64Forced() || (entry.Size >= 0xffffffffL))
{
this.WriteLeInt(-1);
}
else
{
this.WriteLeInt((int) entry.Size);
}
byte[] buffer = ZipConstants.ConvertToArray(entry.Flags, entry.Name);
if (buffer.Length > 0xffff)
{
throw new ZipException("Name too long.");
}
ZipExtraData extraData = new ZipExtraData(entry.ExtraData);
if (entry.CentralHeaderRequiresZip64)
{
extraData.StartNewEntry();
if (entry.IsZip64Forced() || (entry.Size >= 0xffffffffL))
{
extraData.AddLeLong(entry.Size);
}
if (entry.IsZip64Forced() || (entry.CompressedSize >= 0xffffffffL))
{
extraData.AddLeLong(entry.CompressedSize);
}
if (entry.Offset >= 0xffffffffL)
{
extraData.AddLeLong(entry.Offset);
}
extraData.AddNewEntry(1);
}
else
{
extraData.Delete(1);
}
if (entry.AESKeySize > 0)
{
AddExtraDataAES(entry, extraData);
}
byte[] entryData = extraData.GetEntryData();
byte[] buffer3 = (entry.Comment != null) ? ZipConstants.ConvertToArray(entry.Flags, entry.Comment) : new byte[0];
if (buffer3.Length > 0xffff)
{
throw new ZipException("Comment too long.");
}
this.WriteLeShort(buffer.Length);
this.WriteLeShort(entryData.Length);
this.WriteLeShort(buffer3.Length);
this.WriteLeShort(0);
this.WriteLeShort(0);
if (entry.ExternalFileAttributes != -1)
{
this.WriteLeInt(entry.ExternalFileAttributes);
}
else if (entry.IsDirectory)
{
this.WriteLeInt(0x10);
}
else
{
this.WriteLeInt(0);
}
if (entry.Offset >= 0xffffffffL)
{
this.WriteLeInt(-1);
}
else
{
this.WriteLeInt((int) entry.Offset);
}
if (buffer.Length > 0)
{
base.baseOutputStream_.Write(buffer, 0, buffer.Length);
}
if (entryData.Length > 0)
{
base.baseOutputStream_.Write(entryData, 0, entryData.Length);
}
if (buffer3.Length > 0)
{
base.baseOutputStream_.Write(buffer3, 0, buffer3.Length);
}
sizeEntries += ((0x2e + buffer.Length) + entryData.Length) + buffer3.Length;
}
using (ZipHelperStream stream = new ZipHelperStream(base.baseOutputStream_))
{
stream.WriteEndOfCentralDirectory(count, sizeEntries, this.offset, this.zipComment);
}
this.entries = null;
}
}
public void ExceedSize()
{
ZipExtraData zed = new ZipExtraData();
byte[] buffer = new byte[65506];
zed.AddEntry(1, buffer);
Assert.AreEqual(65510, zed.Length);
zed.AddEntry(2, new byte[21]);
Assert.AreEqual(65535, zed.Length);
bool caught = false;
try {
zed.AddEntry(3, null);
}
catch {
caught = true;
}
Assert.IsTrue(caught, "Expected an exception when max size exceeded");
Assert.AreEqual(65535, zed.Length);
zed.Delete(2);
Assert.AreEqual(65510, zed.Length);
caught = false;
try {
zed.AddEntry(2, new byte[22]);
}
catch {
caught = true;
}
Assert.IsTrue(caught, "Expected an exception when max size exceeded");
Assert.AreEqual(65510, zed.Length);
}
/// <summary>
/// Starts a new Zip entry. It automatically closes the previous
/// entry if present.
/// All entry elements bar name are optional, but must be correct if present.
/// If the compression method is stored and the output is not patchable
/// the compression for that entry is automatically changed to deflate level 0
/// </summary>
/// <param name="entry">
/// the entry.
/// </param>
/// <exception cref="System.ArgumentNullException">
/// if entry passed is null.
/// </exception>
/// <exception cref="System.IO.IOException">
/// if an I/O error occured.
/// </exception>
/// <exception cref="System.InvalidOperationException">
/// if stream was finished
/// </exception>
/// <exception cref="ZipException">
/// Too many entries in the Zip file<br/>
/// Entry name is too long<br/>
/// Finish has already been called<br/>
/// </exception>
public void PutNextEntry(ZipEntry entry)
{
if (entry == null)
{
throw new ArgumentNullException("entry");
}
if (entries == null)
{
throw new InvalidOperationException("ZipOutputStream was finished");
}
if (curEntry != null)
{
CloseEntry();
}
if (entries.Count == int.MaxValue)
{
throw new ZipException("Too many entries for Zip file");
}
CompressionMethod method = entry.CompressionMethod;
int compressionLevel = defaultCompressionLevel;
// Clear flags that the library manages internally
entry.Flags &= (int)GeneralBitFlags.UnicodeText;
patchEntryHeader = false;
bool headerInfoAvailable;
// No need to compress - definitely no data.
if (entry.Size == 0)
{
entry.CompressedSize = entry.Size;
entry.Crc = 0;
method = CompressionMethod.Stored;
headerInfoAvailable = true;
}
else
{
headerInfoAvailable = (entry.Size >= 0) && entry.HasCrc;
// Switch to deflation if storing isnt possible.
if (method == CompressionMethod.Stored)
{
if (!headerInfoAvailable)
{
if (!CanPatchEntries)
{
// Can't patch entries so storing is not possible.
method = CompressionMethod.Deflated;
compressionLevel = 0;
}
}
else // entry.size must be > 0
{
entry.CompressedSize = entry.Size;
headerInfoAvailable = entry.HasCrc;
}
}
}
if (headerInfoAvailable == false)
{
if (CanPatchEntries == false)
{
// Only way to record size and compressed size is to append a data descriptor
// after compressed data.
// Stored entries of this form have already been converted to deflating.
entry.Flags |= 8;
}
else
{
patchEntryHeader = true;
}
}
if (Password != null)
{
entry.IsCrypted = true;
if (entry.Crc < 0)
{
// Need to append a data descriptor as the crc isnt available for use
// with encryption, the date is used instead. Setting the flag
// indicates this to the decompressor.
entry.Flags |= 8;
}
}
entry.Offset = offset;
entry.CompressionMethod = (CompressionMethod)method;
curMethod = method;
sizePatchPos = -1;
if ((useZip64_ == UseZip64.On) || ((entry.Size < 0) && (useZip64_ == UseZip64.Dynamic)))
{
entry.ForceZip64();
}
// Write the local file header
WriteLeInt(ZipConstants.LocalHeaderSignature);
WriteLeShort(entry.Version);
WriteLeShort(entry.Flags);
WriteLeShort((byte)method);
WriteLeInt((int)entry.DosTime);
// TODO: Refactor header writing. Its done in several places.
if (headerInfoAvailable == true)
{
WriteLeInt((int)entry.Crc);
if (entry.LocalHeaderRequiresZip64)
{
WriteLeInt(-1);
WriteLeInt(-1);
}
else
{
WriteLeInt(entry.IsCrypted ? (int)entry.CompressedSize + ZipConstants.CryptoHeaderSize : (int)entry.CompressedSize);
WriteLeInt((int)entry.Size);
}
}
else
{
if (patchEntryHeader == true)
{
crcPatchPos = baseOutputStream_.Position;
}
WriteLeInt(0); // Crc
if (patchEntryHeader)
{
sizePatchPos = baseOutputStream_.Position;
}
// For local header both sizes appear in Zip64 Extended Information
if (entry.LocalHeaderRequiresZip64 || patchEntryHeader)
{
WriteLeInt(-1);
WriteLeInt(-1);
}
else
{
WriteLeInt(0); // Compressed size
WriteLeInt(0); // Uncompressed size
}
}
byte[] name = ZipConstants.ConvertToArray(entry.Flags, entry.Name);
if (name.Length > 0xFFFF)
{
throw new ZipException("Entry name too long.");
}
ZipExtraData ed = new ZipExtraData(entry.ExtraData);
if (entry.LocalHeaderRequiresZip64)
{
ed.StartNewEntry();
if (headerInfoAvailable)
{
ed.AddLeLong(entry.Size);
ed.AddLeLong(entry.CompressedSize);
}
else
{
ed.AddLeLong(-1);
ed.AddLeLong(-1);
}
ed.AddNewEntry(1);
if (!ed.Find(1))
{
throw new ZipException("Internal error cant find extra data");
}
if (patchEntryHeader)
{
sizePatchPos = ed.CurrentReadIndex;
}
}
else
{
ed.Delete(1);
}
byte[] extra = ed.GetEntryData();
WriteLeShort(name.Length);
WriteLeShort(extra.Length);
if (name.Length > 0)
{
baseOutputStream_.Write(name, 0, name.Length);
}
if (entry.LocalHeaderRequiresZip64 && patchEntryHeader)
{
sizePatchPos += baseOutputStream_.Position;
}
if (extra.Length > 0)
{
baseOutputStream_.Write(extra, 0, extra.Length);
}
offset += ZipConstants.LocalHeaderBaseSize + name.Length + extra.Length;
// Activate the entry.
curEntry = entry;
crc.Reset();
if (method == CompressionMethod.Deflated)
{
deflater_.Reset();
deflater_.SetLevel(compressionLevel);
}
size = 0;
if (entry.IsCrypted == true)
{
if (entry.Crc < 0) // so testing Zip will says its ok
{
WriteEncryptionHeader(entry.DosTime << 16);
}
else
{
WriteEncryptionHeader(entry.Crc);
}
}
}
/// <summary>
/// Starts a new Zip entry. It automatically closes the previous
/// entry if present.
/// All entry elements bar name are optional, but must be correct if present.
/// If the compression method is stored and the output is not patchable
/// the compression for that entry is automatically changed to deflate level 0
/// </summary>
/// <param name="entry">
/// the entry.
/// </param>
/// <exception cref="System.ArgumentNullException">
/// if entry passed is null.
/// </exception>
/// <exception cref="System.IO.IOException">
/// if an I/O error occured.
/// </exception>
/// <exception cref="System.InvalidOperationException">
/// if stream was finished
/// </exception>
/// <exception cref="ZipException">
/// Too many entries in the Zip file<br/>
/// Entry name is too long<br/>
/// Finish has already been called<br/>
/// </exception>
public void PutNextEntry(ZipEntry entry)
{
if (entry == null)
{
throw new ArgumentNullException("entry");
}
if (entries == null)
{
throw new InvalidOperationException("ZipOutputStream was finished");
}
if (curEntry != null)
{
CloseEntry();
}
if (entries.Count == int.MaxValue)
{
throw new ZipException("Too many entries for Zip file");
}
CompressionMethod method = entry.CompressionMethod;
int compressionLevel = defaultCompressionLevel;
// Clear flags that the library manages internally
entry.Flags &= (int) GeneralBitFlags.UnicodeText;
patchEntryHeader = false;
bool headerInfoAvailable;
// No need to compress - definitely no data.
if (entry.Size == 0)
{
entry.CompressedSize = entry.Size;
entry.Crc = 0;
method = CompressionMethod.Stored;
headerInfoAvailable = true;
}
else
{
headerInfoAvailable = (entry.Size >= 0) && entry.HasCrc;
// Switch to deflation if storing isnt possible.
if (method == CompressionMethod.Stored)
{
if (!headerInfoAvailable)
{
if (!CanPatchEntries)
{
// Can't patch entries so storing is not possible.
method = CompressionMethod.Deflated;
compressionLevel = 0;
}
}
else // entry.size must be > 0
{
entry.CompressedSize = entry.Size;
headerInfoAvailable = entry.HasCrc;
}
}
}
if (headerInfoAvailable == false)
{
if (CanPatchEntries == false)
{
// Only way to record size and compressed size is to append a data descriptor
// after compressed data.
// Stored entries of this form have already been converted to deflating.
entry.Flags |= 8;
}
else
{
patchEntryHeader = true;
}
}
if (Password != null)
{
entry.IsCrypted = true;
if (entry.Crc < 0)
{
// Need to append a data descriptor as the crc isnt available for use
// with encryption, the date is used instead. Setting the flag
// indicates this to the decompressor.
entry.Flags |= 8;
}
}
entry.Offset = offset;
entry.CompressionMethod = method;
curMethod = method;
sizePatchPos = -1;
if ((useZip64_ == UseZip64.On) || ((entry.Size < 0) && (useZip64_ == UseZip64.Dynamic)))
{
entry.ForceZip64();
}
// Write the local file header
WriteLeInt(ZipConstants.LocalHeaderSignature);
WriteLeShort(entry.Version);
WriteLeShort(entry.Flags);
WriteLeShort((byte) entry.CompressionMethodForHeader);
WriteLeInt((int) entry.DosTime);
// TODO: Refactor header writing. Its done in several places.
if (headerInfoAvailable)
{
WriteLeInt((int) entry.Crc);
if (entry.LocalHeaderRequiresZip64)
{
WriteLeInt(-1);
WriteLeInt(-1);
}
else
{
WriteLeInt(entry.IsCrypted
? (int) entry.CompressedSize + ZipConstants.CryptoHeaderSize
: (int) entry.CompressedSize);
WriteLeInt((int) entry.Size);
}
}
else
{
if (patchEntryHeader)
{
crcPatchPos = baseOutputStream_.Position;
}
WriteLeInt(0); // Crc
if (patchEntryHeader)
{
sizePatchPos = baseOutputStream_.Position;
}
// For local header both sizes appear in Zip64 Extended Information
if (entry.LocalHeaderRequiresZip64 || patchEntryHeader)
{
WriteLeInt(-1);
WriteLeInt(-1);
}
else
{
WriteLeInt(0); // Compressed size
WriteLeInt(0); // Uncompressed size
}
}
byte[] name = ZipConstants.ConvertToArray(entry.Flags, entry.Name);
if (name.Length > 0xFFFF)
{
throw new ZipException("Entry name too long.");
}
var ed = new ZipExtraData(entry.ExtraData);
if (entry.LocalHeaderRequiresZip64)
{
ed.StartNewEntry();
if (headerInfoAvailable)
{
ed.AddLeLong(entry.Size);
ed.AddLeLong(entry.CompressedSize);
}
else
{
ed.AddLeLong(-1);
ed.AddLeLong(-1);
}
ed.AddNewEntry(1);
if (!ed.Find(1))
{
throw new ZipException("Internal error cant find extra data");
}
if (patchEntryHeader)
{
sizePatchPos = ed.CurrentReadIndex;
}
}
else
{
ed.Delete(1);
}
#if !NET_1_1 && !NETCF_2_0
if (entry.AESKeySize > 0)
{
AddExtraDataAES(entry, ed);
}
#endif
byte[] extra = ed.GetEntryData();
WriteLeShort(name.Length);
WriteLeShort(extra.Length);
if (name.Length > 0)
{
baseOutputStream_.Write(name, 0, name.Length);
}
if (entry.LocalHeaderRequiresZip64 && patchEntryHeader)
{
sizePatchPos += baseOutputStream_.Position;
}
if (extra.Length > 0)
{
baseOutputStream_.Write(extra, 0, extra.Length);
}
offset += ZipConstants.LocalHeaderBaseSize + name.Length + extra.Length;
// Fix offsetOfCentraldir for AES
if (entry.AESKeySize > 0)
offset += entry.AESOverheadSize;
// Activate the entry.
curEntry = entry;
crc.Reset();
if (method == CompressionMethod.Deflated)
{
deflater_.Reset();
deflater_.SetLevel(compressionLevel);
}
size = 0;
if (entry.IsCrypted)
{
#if !NET_1_1 && !NETCF_2_0
if (entry.AESKeySize > 0)
{
WriteAESHeader(entry);
}
else
#endif
{
if (entry.Crc < 0)
{
// so testing Zip will says its ok
WriteEncryptionHeader(entry.DosTime << 16);
}
else
{
WriteEncryptionHeader(entry.Crc);
}
}
}
}
/// <summary>
/// Finishes the stream. This will write the central directory at the
/// end of the zip file and flush the stream.
/// </summary>
/// <remarks>
/// This is automatically called when the stream is closed.
/// </remarks>
/// <exception cref="System.IO.IOException">
/// An I/O error occurs.
/// </exception>
/// <exception cref="ZipException">
/// Comment exceeds the maximum length<br/>
/// Entry name exceeds the maximum length
/// </exception>
public override void Finish()
{
if (entries == null)
{
return;
}
if (curEntry != null)
{
CloseEntry();
}
long numEntries = entries.Count;
long sizeEntries = 0;
foreach (ZipEntry entry in entries)
{
WriteLeInt(ZipConstants.CentralHeaderSignature);
WriteLeShort(ZipConstants.VersionMadeBy);
WriteLeShort(entry.Version);
WriteLeShort(entry.Flags);
WriteLeShort((short)entry.CompressionMethod);
WriteLeInt((int)entry.DosTime);
WriteLeInt((int)entry.Crc);
if (entry.IsZip64Forced() ||
(entry.CompressedSize >= uint.MaxValue))
{
WriteLeInt(-1);
}
else
{
WriteLeInt((int)entry.CompressedSize);
}
if (entry.IsZip64Forced() ||
(entry.Size >= uint.MaxValue))
{
WriteLeInt(-1);
}
else
{
WriteLeInt((int)entry.Size);
}
byte[] name = ZipConstants.ConvertToArray(entry.Flags, entry.Name);
if (name.Length > 0xffff)
{
throw new ZipException("Name too long.");
}
ZipExtraData ed = new ZipExtraData(entry.ExtraData);
if (entry.CentralHeaderRequiresZip64)
{
ed.StartNewEntry();
if (entry.IsZip64Forced() ||
(entry.Size >= 0xffffffff))
{
ed.AddLeLong(entry.Size);
}
if (entry.IsZip64Forced() ||
(entry.CompressedSize >= 0xffffffff))
{
ed.AddLeLong(entry.CompressedSize);
}
if (entry.Offset >= 0xffffffff)
{
ed.AddLeLong(entry.Offset);
}
ed.AddNewEntry(1);
}
else
{
ed.Delete(1);
}
byte[] extra = ed.GetEntryData();
byte[] entryComment =
(entry.Comment != null) ?
ZipConstants.ConvertToArray(entry.Flags, entry.Comment) :
new byte[0];
if (entryComment.Length > 0xffff)
{
throw new ZipException("Comment too long.");
}
WriteLeShort(name.Length);
WriteLeShort(extra.Length);
WriteLeShort(entryComment.Length);
WriteLeShort(0); // disk number
WriteLeShort(0); // internal file attributes
// external file attributes
if (entry.ExternalFileAttributes != -1)
{
WriteLeInt(entry.ExternalFileAttributes);
}
else
{
if (entry.IsDirectory) // mark entry as directory (from nikolam.AT.perfectinfo.com)
{
WriteLeInt(16);
}
else
{
WriteLeInt(0);
}
}
if (entry.Offset >= uint.MaxValue)
{
WriteLeInt(-1);
}
else
{
WriteLeInt((int)entry.Offset);
}
if (name.Length > 0)
{
baseOutputStream_.Write(name, 0, name.Length);
}
if (extra.Length > 0)
{
baseOutputStream_.Write(extra, 0, extra.Length);
}
if (entryComment.Length > 0)
{
baseOutputStream_.Write(entryComment, 0, entryComment.Length);
}
sizeEntries += ZipConstants.CentralHeaderBaseSize + name.Length + extra.Length + entryComment.Length;
}
using (ZipHelperStream zhs = new ZipHelperStream(baseOutputStream_)) {
zhs.WriteEndOfCentralDirectory(numEntries, sizeEntries, offset, zipComment);
}
entries = null;
}
// Write the local file header
// TODO: ZipHelperStream.WriteLocalHeader is not yet used and needs checking for ZipFile and ZipOuptutStream usage
void WriteLocalHeader(ZipEntry entry, EntryPatchData patchData)
{
CompressionMethod method = entry.CompressionMethod;
bool headerInfoAvailable = true; // How to get this?
bool patchEntryHeader = false;
WriteLEInt(ZipConstants.LocalHeaderSignature);
WriteLEShort(entry.Version);
WriteLEShort(entry.Flags);
WriteLEShort((byte)method);
WriteLEInt((int)entry.DosTime);
if (headerInfoAvailable) {
WriteLEInt((int)entry.Crc);
if ( entry.LocalHeaderRequiresZip64 ) {
WriteLEInt(-1);
WriteLEInt(-1);
}
else {
WriteLEInt(entry.IsCrypted ? (int)entry.CompressedSize + ZipConstants.CryptoHeaderSize : (int)entry.CompressedSize);
WriteLEInt((int)entry.Size);
}
} else {
if (patchData != null) {
patchData.CrcPatchOffset = stream_.Position;
}
WriteLEInt(0); // Crc
if ( patchData != null ) {
patchData.SizePatchOffset = stream_.Position;
}
// For local header both sizes appear in Zip64 Extended Information
if ( entry.LocalHeaderRequiresZip64 && patchEntryHeader ) {
WriteLEInt(-1);
WriteLEInt(-1);
}
else {
WriteLEInt(0); // Compressed size
WriteLEInt(0); // Uncompressed size
}
}
byte[] name = ZipConstants.ConvertToArray(entry.Flags, entry.Name);
if (name.Length > 0xFFFF) {
throw new ZipException("Entry name too long.");
}
ZipExtraData ed = new ZipExtraData(entry.ExtraData);
if (entry.LocalHeaderRequiresZip64 && (headerInfoAvailable || patchEntryHeader)) {
ed.StartNewEntry();
if (headerInfoAvailable) {
ed.AddLeLong(entry.Size);
ed.AddLeLong(entry.CompressedSize);
}
else {
ed.AddLeLong(-1);
ed.AddLeLong(-1);
}
ed.AddNewEntry(1);
if ( !ed.Find(1) ) {
throw new ZipException("Internal error cant find extra data");
}
if ( patchData != null ) {
patchData.SizePatchOffset = ed.CurrentReadIndex;
}
}
else {
ed.Delete(1);
}
byte[] extra = ed.GetEntryData();
WriteLEShort(name.Length);
WriteLEShort(extra.Length);
if ( name.Length > 0 ) {
stream_.Write(name, 0, name.Length);
}
if ( entry.LocalHeaderRequiresZip64 && patchEntryHeader ) {
patchData.SizePatchOffset += stream_.Position;
}
if ( extra.Length > 0 ) {
stream_.Write(extra, 0, extra.Length);
}
}
public void PutNextEntry(ZipEntry entry)
{
if ( entry == null ) {
throw new ArgumentNullException("entry");
}
if (entries == null) {
throw new InvalidOperationException("ZipOutputStream was finished");
}
if (curEntry != null) {
CloseEntry();
}
if (entries.Count == int.MaxValue) {
throw new ZipException("Too many entries for Zip file");
}
CompressionMethod method = entry.CompressionMethod;
int compressionLevel = defaultCompressionLevel;
entry.Flags &= (int)GeneralBitFlags.UnicodeText;
patchEntryHeader = false;
bool headerInfoAvailable;
if (entry.Size == 0)
{
entry.CompressedSize = entry.Size;
entry.Crc = 0;
method = CompressionMethod.Stored;
headerInfoAvailable = true;
}
else
{
headerInfoAvailable = (entry.Size >= 0) && entry.HasCrc;
if (method == CompressionMethod.Stored)
{
if (!headerInfoAvailable)
{
if (!CanPatchEntries)
{
method = CompressionMethod.Deflated;
compressionLevel = 0;
}
}
else
{
entry.CompressedSize = entry.Size;
headerInfoAvailable = entry.HasCrc;
}
}
}
if (headerInfoAvailable == false) {
if (CanPatchEntries == false) {
entry.Flags |= 8;
} else {
patchEntryHeader = true;
}
}
if (Password != null) {
entry.IsCrypted = true;
if (entry.Crc < 0) {
entry.Flags |= 8;
}
}
entry.Offset = offset;
entry.CompressionMethod = (CompressionMethod)method;
curMethod = method;
sizePatchPos = -1;
if ( (useZip64_ == UseZip64.On) || ((entry.Size < 0) && (useZip64_ == UseZip64.Dynamic)) ) {
entry.ForceZip64();
}
WriteLeInt(ZipConstants.LocalHeaderSignature);
WriteLeShort(entry.Version);
WriteLeShort(entry.Flags);
WriteLeShort((byte)method);
WriteLeInt((int)entry.DosTime);
if (headerInfoAvailable == true) {
WriteLeInt((int)entry.Crc);
if ( entry.LocalHeaderRequiresZip64 ) {
WriteLeInt(-1);
WriteLeInt(-1);
}
else {
WriteLeInt(entry.IsCrypted ? (int)entry.CompressedSize + ZipConstants.CryptoHeaderSize : (int)entry.CompressedSize);
WriteLeInt((int)entry.Size);
}
} else {
if (patchEntryHeader == true) {
crcPatchPos = baseOutputStream_.Position;
}
WriteLeInt(0);
if ( patchEntryHeader ) {
sizePatchPos = baseOutputStream_.Position;
}
if ( entry.LocalHeaderRequiresZip64 || patchEntryHeader ) {
WriteLeInt(-1);
WriteLeInt(-1);
}
else {
WriteLeInt(0);
WriteLeInt(0);
}
}
byte[] name = ZipConstants.ConvertToArray(entry.Flags, entry.Name);
if (name.Length > 0xFFFF) {
throw new ZipException("Entry name too long.");
}
ZipExtraData ed = new ZipExtraData(entry.ExtraData);
if (entry.LocalHeaderRequiresZip64) {
ed.StartNewEntry();
if (headerInfoAvailable) {
ed.AddLeLong(entry.Size);
ed.AddLeLong(entry.CompressedSize);
}
else {
ed.AddLeLong(-1);
ed.AddLeLong(-1);
}
ed.AddNewEntry(1);
if ( !ed.Find(1) ) {
throw new ZipException("Internal error cant find extra data");
}
if ( patchEntryHeader ) {
sizePatchPos = ed.CurrentReadIndex;
}
}
else {
ed.Delete(1);
}
byte[] extra = ed.GetEntryData();
WriteLeShort(name.Length);
WriteLeShort(extra.Length);
if ( name.Length > 0 ) {
baseOutputStream_.Write(name, 0, name.Length);
}
if ( entry.LocalHeaderRequiresZip64 && patchEntryHeader ) {
sizePatchPos += baseOutputStream_.Position;
}
if ( extra.Length > 0 ) {
baseOutputStream_.Write(extra, 0, extra.Length);
}
offset += ZipConstants.LocalHeaderBaseSize + name.Length + extra.Length;
curEntry = entry;
crc.Reset();
if (method == CompressionMethod.Deflated) {
deflater_.Reset();
deflater_.SetLevel(compressionLevel);
}
size = 0;
if (entry.IsCrypted == true) {
if (entry.Crc < 0) {
WriteEncryptionHeader(entry.DosTime << 16);
} else {
WriteEncryptionHeader(entry.Crc);
}
}
}
int WriteCentralDirectoryHeader(ZipEntry entry)
{
if ( entry.CompressedSize < 0 ) {
throw new ZipException("Attempt to write central directory entry with unknown csize");
}
if ( entry.Size < 0 ) {
throw new ZipException("Attempt to write central directory entry with unknown size");
}
if ( entry.Crc < 0 ) {
throw new ZipException("Attempt to write central directory entry with unknown crc");
}
// Write the central file header
WriteLEInt(ZipConstants.CentralHeaderSignature);
// Version made by
WriteLEShort(ZipConstants.VersionMadeBy);
// Version required to extract
WriteLEShort(entry.Version);
WriteLEShort(entry.Flags);
unchecked {
WriteLEShort((byte)entry.CompressionMethod);
WriteLEInt((int)entry.DosTime);
WriteLEInt((int)entry.Crc);
}
if ( (entry.IsZip64Forced()) || (entry.CompressedSize >= 0xffffffff) ) {
WriteLEInt(-1);
}
else {
WriteLEInt((int)(entry.CompressedSize & 0xffffffff));
}
if ( (entry.IsZip64Forced()) || (entry.Size >= 0xffffffff) ) {
WriteLEInt(-1);
}
else {
WriteLEInt((int)entry.Size);
}
byte[] name = ZipConstants.ConvertToArray(entry.Flags, entry.Name);
if ( name.Length > 0xFFFF ) {
throw new ZipException("Entry name is too long.");
}
WriteLEShort(name.Length);
// Central header extra data is different to local header version so regenerate.
ZipExtraData ed = new ZipExtraData(entry.ExtraData);
if ( entry.CentralHeaderRequiresZip64 ) {
ed.StartNewEntry();
if ( (entry.Size >= 0xffffffff) || (useZip64_ == UseZip64.On) )
{
ed.AddLeLong(entry.Size);
}
if ( (entry.CompressedSize >= 0xffffffff) || (useZip64_ == UseZip64.On) )
{
ed.AddLeLong(entry.CompressedSize);
}
if ( entry.Offset >= 0xffffffff ) {
ed.AddLeLong(entry.Offset);
}
// Number of disk on which this file starts isnt supported and is never written here.
ed.AddNewEntry(1);
}
else {
// Should have already be done when local header was added.
ed.Delete(1);
}
byte[] centralExtraData = ed.GetEntryData();
WriteLEShort(centralExtraData.Length);
WriteLEShort(entry.Comment != null ? entry.Comment.Length : 0);
WriteLEShort(0); // disk number
WriteLEShort(0); // internal file attributes
// External file attributes...
if ( entry.ExternalFileAttributes != -1 ) {
WriteLEInt(entry.ExternalFileAttributes);
}
else {
if ( entry.IsDirectory ) {
WriteLEUint(16);
}
else {
WriteLEUint(0);
}
}
if ( entry.Offset >= 0xffffffff ) {
WriteLEUint(0xffffffff);
}
else {
WriteLEUint((uint)(int)entry.Offset);
}
if ( name.Length > 0 ) {
baseStream_.Write(name, 0, name.Length);
}
if ( centralExtraData.Length > 0 ) {
baseStream_.Write(centralExtraData, 0, centralExtraData.Length);
}
byte[] rawComment = (entry.Comment != null) ? Encoding.ASCII.GetBytes(entry.Comment) : new byte[0];
if ( rawComment.Length > 0 ) {
baseStream_.Write(rawComment, 0, rawComment.Length);
}
return ZipConstants.CentralHeaderBaseSize + name.Length + centralExtraData.Length + rawComment.Length;
}
public void PutNextEntry(ZipEntry entry)
{
if (entry == null)
{
throw new ArgumentNullException("entry");
}
if (entries == null)
{
throw new InvalidOperationException("ZipOutputStream was finished");
}
if (curEntry != null)
{
CloseEntry();
}
if (entries.Count == int.MaxValue)
{
throw new ZipException("Too many entries for Zip file");
}
CompressionMethod compressionMethod = entry.CompressionMethod;
int level = defaultCompressionLevel;
entry.Flags &= 2048;
patchEntryHeader = false;
bool flag;
if (entry.Size == 0)
{
entry.CompressedSize = entry.Size;
entry.Crc = 0L;
compressionMethod = CompressionMethod.Stored;
flag = true;
}
else
{
flag = (entry.Size >= 0 && entry.HasCrc);
if (compressionMethod == CompressionMethod.Stored)
{
if (!flag)
{
if (!base.CanPatchEntries)
{
compressionMethod = CompressionMethod.Deflated;
level = 0;
}
}
else
{
entry.CompressedSize = entry.Size;
flag = entry.HasCrc;
}
}
}
if (!flag)
{
if (!base.CanPatchEntries)
{
entry.Flags |= 8;
}
else
{
patchEntryHeader = true;
}
}
if (base.Password != null)
{
entry.IsCrypted = true;
if (entry.Crc < 0)
{
entry.Flags |= 8;
}
}
entry.Offset = offset;
entry.CompressionMethod = compressionMethod;
curMethod = compressionMethod;
sizePatchPos = -1L;
if (useZip64_ == UseZip64.On || (entry.Size < 0 && useZip64_ == UseZip64.Dynamic))
{
entry.ForceZip64();
}
WriteLeInt(67324752);
WriteLeShort(entry.Version);
WriteLeShort(entry.Flags);
WriteLeShort((byte)entry.CompressionMethodForHeader);
WriteLeInt((int)entry.DosTime);
if (flag)
{
WriteLeInt((int)entry.Crc);
if (entry.LocalHeaderRequiresZip64)
{
WriteLeInt(-1);
WriteLeInt(-1);
}
else
{
WriteLeInt((int)(entry.IsCrypted ? ((int)entry.CompressedSize + 12) : entry.CompressedSize));
WriteLeInt((int)entry.Size);
}
}
else
{
if (patchEntryHeader)
{
crcPatchPos = baseOutputStream_.Position;
}
WriteLeInt(0);
if (patchEntryHeader)
{
sizePatchPos = baseOutputStream_.Position;
}
if (entry.LocalHeaderRequiresZip64 || patchEntryHeader)
{
WriteLeInt(-1);
WriteLeInt(-1);
}
else
{
WriteLeInt(0);
WriteLeInt(0);
}
}
byte[] array = ZipConstants.ConvertToArray(entry.Flags, entry.Name);
if (array.Length > 65535)
{
throw new ZipException("Entry name too long.");
}
ZipExtraData zipExtraData = new ZipExtraData(entry.ExtraData);
if (entry.LocalHeaderRequiresZip64)
{
zipExtraData.StartNewEntry();
if (flag)
{
zipExtraData.AddLeLong(entry.Size);
zipExtraData.AddLeLong(entry.CompressedSize);
}
else
{
zipExtraData.AddLeLong(-1L);
zipExtraData.AddLeLong(-1L);
}
zipExtraData.AddNewEntry(1);
if (!zipExtraData.Find(1))
{
throw new ZipException("Internal error cant find extra data");
}
if (patchEntryHeader)
{
sizePatchPos = zipExtraData.CurrentReadIndex;
}
}
else
{
zipExtraData.Delete(1);
}
if (entry.AESKeySize > 0)
{
AddExtraDataAES(entry, zipExtraData);
}
byte[] entryData = zipExtraData.GetEntryData();
WriteLeShort(array.Length);
WriteLeShort(entryData.Length);
if (array.Length > 0)
{
baseOutputStream_.Write(array, 0, array.Length);
}
if (entry.LocalHeaderRequiresZip64 && patchEntryHeader)
{
sizePatchPos += baseOutputStream_.Position;
}
if (entryData.Length > 0)
{
baseOutputStream_.Write(entryData, 0, entryData.Length);
}
offset += 30 + array.Length + entryData.Length;
if (entry.AESKeySize > 0)
{
offset += entry.AESOverheadSize;
}
curEntry = entry;
crc.Reset();
if (compressionMethod == CompressionMethod.Deflated)
{
deflater_.Reset();
deflater_.SetLevel(level);
}
size = 0L;
if (entry.IsCrypted)
{
if (entry.AESKeySize > 0)
{
WriteAESHeader(entry);
}
else if (entry.Crc < 0)
{
WriteEncryptionHeader(entry.DosTime << 16);
}
else
{
WriteEncryptionHeader(entry.Crc);
}
}
}