ICSharpCode.SharpZipLib.Zip.ZipOutputStream - Coverage Report

# Summary

Class: | ICSharpCode.SharpZipLib.Zip.ZipOutputStream
Assembly: | ICSharpCode.SharpZipLib
File(s): | C:\Users\Neil\Documents\Visual Studio 2015\Projects\icsharpcode\SZL_master\ICSharpCode.SharpZipLib\Zip\ZipOutputStream.cs
Covered lines: | 285
Uncovered lines: | 48
Coverable lines: | 333
Total lines: | 816
Line coverage: | 85.5%
Branch coverage: | 78.4%

# Metrics

Method | Cyclomatic Complexity | Sequence Coverage | Branch Coverage
--- | --- | --- | ---
.ctor(...) | 1 | 100 | 100
.ctor(...) | 1 | 0 | 0
SetComment(...) | 2 | 100 | 100
SetLevel(...) | 1 | 100 | 100
GetLevel() | 1 | 100 | 100
WriteLeShort(...) | 1 | 100 | 100
WriteLeInt(...) | 1 | 100 | 100
WriteLeLong(...) | 1 | 100 | 100
PutNextEntry(...) | 40 | 88.70 | 86.30
CloseEntry() | 18 | 85.25 | 77.14
WriteEncryptionHeader(...) | 1 | 100 | 100
AddExtraDataAES(...) | 1 | 0 | 0
WriteAESHeader(...) | 1 | 0 | 0
Write(...) | 9 | 75 | 64.71
CopyAndEncrypt(...) | 4 | 100 | 80
Finish() | 26 | 90.41 | 73.33

# File(s)

## C:\Users\Neil\Documents\Visual Studio 2015\Projects\icsharpcode\SZL_master\ICSharpCode.SharpZipLib\Zip\ZipOutputStream.cs

| # | Line |  | Line coverage
--- | --- | --- | --- | ---
|  | `1` |  | `using System;`
|  | `2` |  | `using System.IO;`
|  | `3` |  | `using System.Collections;`
|  | `4` |  | `using ICSharpCode.SharpZipLib.Checksum;`
|  | `5` |  | `using ICSharpCode.SharpZipLib.Zip.Compression;`
|  | `6` |  | `using ICSharpCode.SharpZipLib.Zip.Compression.Streams;`
|  | `7` |  | ``
|  | `8` |  | `namespace ICSharpCode.SharpZipLib.Zip`
|  | `9` |  | `{`
|  | `10` |  | `/// <summary>`
|  | `11` |  | `/// This is a DeflaterOutputStream that writes the files into a zip`
|  | `12` |  | `/// archive one after another. It has a special method to start a new`
|  | `13` |  | `/// zip entry. The zip entries contains information about the file name`
|  | `14` |  | `/// size, compressed size, CRC, etc.`
|  | `15` |  | `///`
|  | `16` |  | `/// It includes support for Stored and Deflated entries.`
|  | `17` |  | `/// This class is not thread safe.`
|  | `18` |  | `/// <br/>`
|  | `19` |  | `/// <br/>Author of the original java version : Jochen Hoenicke`
|  | `20` |  | `/// </summary>`
|  | `21` |  | `/// <example> This sample shows how to create a zip file`
|  | `22` |  | `/// <code>`
|  | `23` |  | `/// using System;`
|  | `24` |  | `/// using System.IO;`
|  | `25` |  | `///`
|  | `26` |  | `/// using ICSharpCode.SharpZipLib.Core;`
|  | `27` |  | `/// using ICSharpCode.SharpZipLib.Zip;`
|  | `28` |  | `///`
|  | `29` |  | `/// class MainClass`
|  | `30` |  | `/// {`
|  | `31` |  | `/// public static void Main(string[] args)`
|  | `32` |  | `/// {`
|  | `33` |  | `/// string[] filenames = Directory.GetFiles(args[0]);`
|  | `34` |  | `/// byte[] buffer = new byte[4096];`
|  | `35` |  | `///`
|  | `36` |  | `/// using ( ZipOutputStream s = new ZipOutputStream(File.Create(args[1])) ) {`
|  | `37` |  | `///`
|  | `38` |  | `/// s.SetLevel(9); // 0 - store only to 9 - means best compression`
|  | `39` |  | `///`
|  | `40` |  | `/// foreach (string file in filenames) {`
|  | `41` |  | `/// ZipEntry entry = new ZipEntry(file);`
|  | `42` |  | `/// s.PutNextEntry(entry);`
|  | `43` |  | `///`
|  | `44` |  | `/// using (FileStream fs = File.OpenRead(file)) {`
|  | `45` |  | `/// StreamUtils.Copy(fs, s, buffer);`
|  | `46` |  | `/// }`
|  | `47` |  | `/// }`
|  | `48` |  | `/// }`
|  | `49` |  | `/// }`
|  | `50` |  | `/// }`
|  | `51` |  | `/// </code>`
|  | `52` |  | `/// </example>`
|  | `53` |  | `public class ZipOutputStream : DeflaterOutputStream`
|  | `54` |  | `{`
|  | `55` |  | `#region Constructors`
|  | `56` |  | `/// <summary>`
|  | `57` |  | `/// Creates a new Zip output stream, writing a zip archive.`
|  | `58` |  | `/// </summary>`
|  | `59` |  | `/// <param name="baseOutputStream">`
|  | `60` |  | `/// The output stream to which the archive contents are written.`
|  | `61` |  | `/// </param>`
|  | `62` |  | `public ZipOutputStream(Stream baseOutputStream)`
| 87 | `63` |  | `: base(baseOutputStream, new Deflater(Deflater.DEFAULT_COMPRESSION, true))`
|  | `64` |  | `{`
| 87 | `65` |  | `}`
|  | `66` |  | ``
|  | `67` |  | `/// <summary>`
|  | `68` |  | `/// Creates a new Zip output stream, writing a zip archive.`
|  | `69` |  | `/// </summary>`
|  | `70` |  | `/// <param name="baseOutputStream">The output stream to which the archive contents are written.</param>`
|  | `71` |  | `/// <param name="bufferSize">Size of the buffer to use.</param>`
|  | `72` |  | `public ZipOutputStream(Stream baseOutputStream, int bufferSize)`
| 0 | `73` |  | `: base(baseOutputStream, new Deflater(Deflater.DEFAULT_COMPRESSION, true), bufferSize)`
|  | `74` |  | `{`
| 0 | `75` |  | `}`
|  | `76` |  | `#endregion`
|  | `77` |  | ``
|  | `78` |  | `/// <summary>`
|  | `79` |  | `/// Gets a flag value of true if the central header has been added for this archive; false if it has not been added.`
|  | `80` |  | `/// </summary>`
|  | `81` |  | `/// <remarks>No further entries can be added once this has been done.</remarks>`
|  | `82` |  | `public bool IsFinished {`
|  | `83` |  | `get {`
| 1 | `84` |  | `return entries == null;`
|  | `85` |  | `}`
|  | `86` |  | `}`
|  | `87` |  | ``
|  | `88` |  | `/// <summary>`
|  | `89` |  | `/// Set the zip file comment.`
|  | `90` |  | `/// </summary>`
|  | `91` |  | `/// <param name="comment">`
|  | `92` |  | `/// The comment text for the entire archive.`
|  | `93` |  | `/// </param>`
|  | `94` |  | `/// <exception name ="ArgumentOutOfRangeException">`
|  | `95` |  | `/// The converted comment is longer than 0xffff bytes.`
|  | `96` |  | `/// </exception>`
|  | `97` |  | `public void SetComment(string comment)`
|  | `98` |  | `{`
|  | `99` |  | `// TODO: Its not yet clear how to handle unicode comments here.`
| 8 | `100` |  | `byte[] commentBytes = ZipConstants.ConvertToArray(comment);`
| 8 | `101` |  | `if (commentBytes.Length > 0xffff) {`
| 1 | `102` |  | `throw new ArgumentOutOfRangeException(nameof(comment));`
|  | `103` |  | `}`
| 7 | `104` |  | `zipComment = commentBytes;`
| 7 | `105` |  | `}`
|  | `106` |  | ``
|  | `107` |  | `/// <summary>`
|  | `108` |  | `/// Sets the compression level. The new level will be activated`
|  | `109` |  | `/// immediately.`
|  | `110` |  | `/// </summary>`
|  | `111` |  | `/// <param name="level">The new compression level (1 to 9).</param>`
|  | `112` |  | `/// <exception cref="ArgumentOutOfRangeException">`
|  | `113` |  | `/// Level specified is not supported.`
|  | `114` |  | `/// </exception>`
|  | `115` |  | `/// <see cref="ICSharpCode.SharpZipLib.Zip.Compression.Deflater"/>`
|  | `116` |  | `public void SetLevel(int level)`
|  | `117` |  | `{`
| 55 | `118` |  | `deflater_.SetLevel(level);`
| 55 | `119` |  | `defaultCompressionLevel = level;`
| 55 | `120` |  | `}`
|  | `121` |  | ``
|  | `122` |  | `/// <summary>`
|  | `123` |  | `/// Get the current deflater compression level`
|  | `124` |  | `/// </summary>`
|  | `125` |  | `/// <returns>The current compression level</returns>`
|  | `126` |  | `public int GetLevel()`
|  | `127` |  | `{`
| 3 | `128` |  | `return deflater_.GetLevel();`
|  | `129` |  | `}`
|  | `130` |  | ``
|  | `131` |  | `/// <summary>`
|  | `132` |  | `/// Get / set a value indicating how Zip64 Extension usage is determined when adding entries.`
|  | `133` |  | `/// </summary>`
|  | `134` |  | `/// <remarks>Older archivers may not understand Zip64 extensions.`
|  | `135` |  | `/// If backwards compatability is an issue be careful when adding <see cref="ZipEntry.Size">entries</see> to an arch`
|  | `136` |  | `/// Setting this property to off is workable but less desirable as in those circumstances adding a file`
|  | `137` |  | `/// larger then 4GB will fail.</remarks>`
|  | `138` |  | `public UseZip64 UseZip64 {`
| 0 | `139` |  | `get { return useZip64_; }`
| 14 | `140` |  | `set { useZip64_ = value; }`
|  | `141` |  | `}`
|  | `142` |  | ``
|  | `143` |  | `/// <summary>`
|  | `144` |  | `/// Write an unsigned short in little endian byte order.`
|  | `145` |  | `/// </summary>`
|  | `146` |  | `private void WriteLeShort(int value)`
|  | `147` |  | `{`
|  | `148` |  | `unchecked {`
| 6369 | `149` |  | `baseOutputStream_.WriteByte((byte)(value & 0xff));`
| 6369 | `150` |  | `baseOutputStream_.WriteByte((byte)((value >> 8) & 0xff));`
|  | `151` |  | `}`
| 6369 | `152` |  | `}`
|  | `153` |  | ``
|  | `154` |  | `/// <summary>`
|  | `155` |  | `/// Write an int in little endian byte order.`
|  | `156` |  | `/// </summary>`
|  | `157` |  | `private void WriteLeInt(int value)`
|  | `158` |  | `{`
|  | `159` |  | `unchecked {`
| 2286 | `160` |  | `WriteLeShort(value);`
| 2286 | `161` |  | `WriteLeShort(value >> 16);`
|  | `162` |  | `}`
| 2286 | `163` |  | `}`
|  | `164` |  | ``
|  | `165` |  | `/// <summary>`
|  | `166` |  | `/// Write an int in little endian byte order.`
|  | `167` |  | `/// </summary>`
|  | `168` |  | `private void WriteLeLong(long value)`
|  | `169` |  | `{`
|  | `170` |  | `unchecked {`
| 268 | `171` |  | `WriteLeInt((int)value);`
| 268 | `172` |  | `WriteLeInt((int)(value >> 32));`
|  | `173` |  | `}`
| 268 | `174` |  | `}`
|  | `175` |  | ``
|  | `176` |  | `/// <summary>`
|  | `177` |  | `/// Starts a new Zip entry. It automatically closes the previous`
|  | `178` |  | `/// entry if present.`
|  | `179` |  | `/// All entry elements bar name are optional, but must be correct if present.`
|  | `180` |  | `/// If the compression method is stored and the output is not patchable`
|  | `181` |  | `/// the compression for that entry is automatically changed to deflate level 0`
|  | `182` |  | `/// </summary>`
|  | `183` |  | `/// <param name="entry">`
|  | `184` |  | `/// the entry.`
|  | `185` |  | `/// </param>`
|  | `186` |  | `/// <exception cref="System.ArgumentNullException">`
|  | `187` |  | `/// if entry passed is null.`
|  | `188` |  | `/// </exception>`
|  | `189` |  | `/// <exception cref="System.IO.IOException">`
|  | `190` |  | `/// if an I/O error occured.`
|  | `191` |  | `/// </exception>`
|  | `192` |  | `/// <exception cref="System.InvalidOperationException">`
|  | `193` |  | `/// if stream was finished`
|  | `194` |  | `/// </exception>`
|  | `195` |  | `/// <exception cref="ZipException">`
|  | `196` |  | `/// Too many entries in the Zip file<br/>`
|  | `197` |  | `/// Entry name is too long<br/>`
|  | `198` |  | `/// Finish has already been called<br/>`
|  | `199` |  | `/// </exception>`
|  | `200` |  | `public void PutNextEntry(ZipEntry entry)`
|  | `201` |  | `{`
| 130 | `202` |  | `if (entry == null) {`
| 0 | `203` |  | `throw new ArgumentNullException(nameof(entry));`
|  | `204` |  | `}`
|  | `205` |  | ``
| 130 | `206` |  | `if (entries == null) {`
| 1 | `207` |  | `throw new InvalidOperationException("ZipOutputStream was finished");`
|  | `208` |  | `}`
|  | `209` |  | ``
| 129 | `210` |  | `if (curEntry != null) {`
| 48 | `211` |  | `CloseEntry();`
|  | `212` |  | `}`
|  | `213` |  | ``
| 129 | `214` |  | `if (entries.Count == int.MaxValue) {`
| 0 | `215` |  | `throw new ZipException("Too many entries for Zip file");`
|  | `216` |  | `}`
|  | `217` |  | ``
| 129 | `218` |  | `CompressionMethod method = entry.CompressionMethod;`
| 129 | `219` |  | `int compressionLevel = defaultCompressionLevel;`
|  | `220` |  | ``
|  | `221` |  | `// Clear flags that the library manages internally`
| 129 | `222` |  | `entry.Flags &= (int)GeneralBitFlags.UnicodeText;`
| 129 | `223` |  | `patchEntryHeader = false;`
|  | `224` |  | ``
|  | `225` |  | `bool headerInfoAvailable;`
|  | `226` |  | ``
|  | `227` |  | `// No need to compress - definitely no data.`
| 129 | `228` |  | `if (entry.Size == 0) {`
| 1 | `229` |  | `entry.CompressedSize = entry.Size;`
| 1 | `230` |  | `entry.Crc = 0;`
| 1 | `231` |  | `method = CompressionMethod.Stored;`
| 1 | `232` |  | `headerInfoAvailable = true;`
| 1 | `233` |  | `} else {`
| 128 | `234` |  | `headerInfoAvailable = (entry.Size >= 0) && entry.HasCrc && entry.CompressedSize >= 0;`
|  | `235` |  | ``
|  | `236` |  | `// Switch to deflation if storing isnt possible.`
| 128 | `237` |  | `if (method == CompressionMethod.Stored) {`
| 13 | `238` |  | `if (!headerInfoAvailable) {`
| 13 | `239` |  | `if (!CanPatchEntries) {`
|  | `240` |  | `// Can't patch entries so storing is not possible.`
| 5 | `241` |  | `method = CompressionMethod.Deflated;`
| 5 | `242` |  | `compressionLevel = 0;`
|  | `243` |  | `}`
| 5 | `244` |  | `} else // entry.size must be > 0`
|  | `245` |  | `{`
| 0 | `246` |  | `entry.CompressedSize = entry.Size;`
| 0 | `247` |  | `headerInfoAvailable = entry.HasCrc;`
|  | `248` |  | `}`
|  | `249` |  | `}`
|  | `250` |  | `}`
|  | `251` |  | ``
| 129 | `252` |  | `if (headerInfoAvailable == false) {`
| 128 | `253` |  | `if (CanPatchEntries == false) {`
|  | `254` |  | `// Only way to record size and compressed size is to append a data descriptor`
|  | `255` |  | `// after compressed data.`
|  | `256` |  | ``
|  | `257` |  | `// Stored entries of this form have already been converted to deflating.`
| 32 | `258` |  | `entry.Flags |= 8;`
| 32 | `259` |  | `} else {`
| 96 | `260` |  | `patchEntryHeader = true;`
|  | `261` |  | `}`
|  | `262` |  | `}`
|  | `263` |  | ``
| 129 | `264` |  | `if (Password != null) {`
| 33 | `265` |  | `entry.IsCrypted = true;`
| 33 | `266` |  | `if (entry.Crc < 0) {`
|  | `267` |  | `// Need to append a data descriptor as the crc isnt available for use`
|  | `268` |  | `// with encryption, the date is used instead. Setting the flag`
|  | `269` |  | `// indicates this to the decompressor.`
| 29 | `270` |  | `entry.Flags |= 8;`
|  | `271` |  | `}`
|  | `272` |  | `}`
|  | `273` |  | ``
| 129 | `274` |  | `entry.Offset = offset;`
| 129 | `275` |  | `entry.CompressionMethod = (CompressionMethod)method;`
|  | `276` |  | ``
| 129 | `277` |  | `curMethod = method;`
| 129 | `278` |  | `sizePatchPos = -1;`
|  | `279` |  | ``
| 129 | `280` |  | `if ((useZip64_ == UseZip64.On) || ((entry.Size < 0) && (useZip64_ == UseZip64.Dynamic))) {`
| 121 | `281` |  | `entry.ForceZip64();`
|  | `282` |  | `}`
|  | `283` |  | ``
|  | `284` |  | `// Write the local file header`
| 129 | `285` |  | `WriteLeInt(ZipConstants.LocalHeaderSignature);`
|  | `286` |  | ``
| 129 | `287` |  | `WriteLeShort(entry.Version);`
| 129 | `288` |  | `WriteLeShort(entry.Flags);`
| 129 | `289` |  | `WriteLeShort((byte)entry.CompressionMethodForHeader);`
| 129 | `290` |  | `WriteLeInt((int)entry.DosTime);`
|  | `291` |  | ``
|  | `292` |  | `// TODO: Refactor header writing. Its done in several places.`
| 129 | `293` |  | `if (headerInfoAvailable) {`
| 1 | `294` |  | `WriteLeInt((int)entry.Crc);`
| 1 | `295` |  | `if (entry.LocalHeaderRequiresZip64) {`
| 1 | `296` |  | `WriteLeInt(-1);`
| 1 | `297` |  | `WriteLeInt(-1);`
| 1 | `298` |  | `} else {`
| 0 | `299` |  | `WriteLeInt(entry.IsCrypted ? (int)entry.CompressedSize + ZipConstants.CryptoHeaderSize : (int)entry.Compressed`
| 0 | `300` |  | `WriteLeInt((int)entry.Size);`
|  | `301` |  | `}`
| 0 | `302` |  | `} else {`
| 128 | `303` |  | `if (patchEntryHeader) {`
| 96 | `304` |  | `crcPatchPos = baseOutputStream_.Position;`
|  | `305` |  | `}`
| 128 | `306` |  | `WriteLeInt(0); // Crc`
|  | `307` |  | ``
| 128 | `308` |  | `if (patchEntryHeader) {`
| 96 | `309` |  | `sizePatchPos = baseOutputStream_.Position;`
|  | `310` |  | `}`
|  | `311` |  | ``
|  | `312` |  | `// For local header both sizes appear in Zip64 Extended Information`
| 128 | `313` |  | `if (entry.LocalHeaderRequiresZip64 || patchEntryHeader) {`
| 125 | `314` |  | `WriteLeInt(-1);`
| 125 | `315` |  | `WriteLeInt(-1);`
| 125 | `316` |  | `} else {`
| 3 | `317` |  | `WriteLeInt(0); // Compressed size`
| 3 | `318` |  | `WriteLeInt(0); // Uncompressed size`
|  | `319` |  | `}`
|  | `320` |  | `}`
|  | `321` |  | ``
| 129 | `322` |  | `byte[] name = ZipConstants.ConvertToArray(entry.Flags, entry.Name);`
|  | `323` |  | ``
| 129 | `324` |  | `if (name.Length > 0xFFFF) {`
| 0 | `325` |  | `throw new ZipException("Entry name too long.");`
|  | `326` |  | `}`
|  | `327` |  | ``
| 129 | `328` |  | `var ed = new ZipExtraData(entry.ExtraData);`
|  | `329` |  | ``
| 129 | `330` |  | `if (entry.LocalHeaderRequiresZip64) {`
| 122 | `331` |  | `ed.StartNewEntry();`
| 122 | `332` |  | `if (headerInfoAvailable) {`
| 1 | `333` |  | `ed.AddLeLong(entry.Size);`
| 1 | `334` |  | `ed.AddLeLong(entry.CompressedSize);`
| 1 | `335` |  | `} else {`
| 121 | `336` |  | `ed.AddLeLong(-1);`
| 121 | `337` |  | `ed.AddLeLong(-1);`
|  | `338` |  | `}`
| 122 | `339` |  | `ed.AddNewEntry(1);`
|  | `340` |  | ``
| 122 | `341` |  | `if (!ed.Find(1)) {`
| 0 | `342` |  | `throw new ZipException("Internal error cant find extra data");`
|  | `343` |  | `}`
|  | `344` |  | ``
| 122 | `345` |  | `if (patchEntryHeader) {`
| 92 | `346` |  | `sizePatchPos = ed.CurrentReadIndex;`
|  | `347` |  | `}`
| 92 | `348` |  | `} else {`
| 7 | `349` |  | `ed.Delete(1);`
|  | `350` |  | `}`
|  | `351` |  | ``
| 129 | `352` |  | `if (entry.AESKeySize > 0) {`
| 0 | `353` |  | `AddExtraDataAES(entry, ed);`
|  | `354` |  | `}`
| 129 | `355` |  | `byte[] extra = ed.GetEntryData();`
|  | `356` |  | ``
| 129 | `357` |  | `WriteLeShort(name.Length);`
| 129 | `358` |  | `WriteLeShort(extra.Length);`
|  | `359` |  | ``
| 129 | `360` |  | `if (name.Length > 0) {`
| 129 | `361` |  | `baseOutputStream_.Write(name, 0, name.Length);`
|  | `362` |  | `}`
|  | `363` |  | ``
| 128 | `364` |  | `if (entry.LocalHeaderRequiresZip64 && patchEntryHeader) {`
| 91 | `365` |  | `sizePatchPos += baseOutputStream_.Position;`
|  | `366` |  | `}`
|  | `367` |  | ``
| 128 | `368` |  | `if (extra.Length > 0) {`
| 121 | `369` |  | `baseOutputStream_.Write(extra, 0, extra.Length);`
|  | `370` |  | `}`
|  | `371` |  | ``
| 128 | `372` |  | `offset += ZipConstants.LocalHeaderBaseSize + name.Length + extra.Length;`
|  | `373` |  | `// Fix offsetOfCentraldir for AES`
| 128 | `374` |  | `if (entry.AESKeySize > 0)`
| 0 | `375` |  | `offset += entry.AESOverheadSize;`
|  | `376` |  | ``
|  | `377` |  | `// Activate the entry.`
| 128 | `378` |  | `curEntry = entry;`
| 128 | `379` |  | `crc.Reset();`
| 128 | `380` |  | `if (method == CompressionMethod.Deflated) {`
| 119 | `381` |  | `deflater_.Reset();`
| 119 | `382` |  | `deflater_.SetLevel(compressionLevel);`
|  | `383` |  | `}`
| 128 | `384` |  | `size = 0;`
|  | `385` |  | ``
| 128 | `386` |  | `if (entry.IsCrypted) {`
| 33 | `387` |  | `if (entry.AESKeySize > 0) {`
| 0 | `388` |  | `WriteAESHeader(entry);`
| 0 | `389` |  | `} else {`
| 33 | `390` |  | `if (entry.Crc < 0) { // so testing Zip will says its ok`
| 29 | `391` |  | `WriteEncryptionHeader(entry.DosTime << 16);`
| 29 | `392` |  | `} else {`
| 4 | `393` |  | `WriteEncryptionHeader(entry.Crc);`
|  | `394` |  | `}`
|  | `395` |  | `}`
|  | `396` |  | `}`
| 99 | `397` |  | `}`
|  | `398` |  | ``
|  | `399` |  | `/// <summary>`
|  | `400` |  | `/// Closes the current entry, updating header and footer information as required`
|  | `401` |  | `/// </summary>`
|  | `402` |  | `/// <exception cref="System.IO.IOException">`
|  | `403` |  | `/// An I/O error occurs.`
|  | `404` |  | `/// </exception>`
|  | `405` |  | `/// <exception cref="System.InvalidOperationException">`
|  | `406` |  | `/// No entry is active.`
|  | `407` |  | `/// </exception>`
|  | `408` |  | `public void CloseEntry()`
|  | `409` |  | `{`
| 128 | `410` |  | `if (curEntry == null) {`
| 0 | `411` |  | `throw new InvalidOperationException("No open entry");`
|  | `412` |  | `}`
|  | `413` |  | ``
| 128 | `414` |  | `long csize = size;`
|  | `415` |  | ``
|  | `416` |  | `// First finish the deflater, if appropriate`
| 128 | `417` |  | `if (curMethod == CompressionMethod.Deflated) {`
| 119 | `418` |  | `if (size >= 0) {`
| 119 | `419` |  | `base.Finish();`
| 119 | `420` |  | `csize = deflater_.TotalOut;`
| 119 | `421` |  | `} else {`
| 0 | `422` |  | `deflater_.Reset();`
|  | `423` |  | `}`
|  | `424` |  | `}`
|  | `425` |  | ``
|  | `426` |  | `// Write the AES Authentication Code (a hash of the compressed and encrypted data)`
| 128 | `427` |  | `if (curEntry.AESKeySize > 0) {`
| 0 | `428` |  | `baseOutputStream_.Write(AESAuthCode, 0, 10);`
|  | `429` |  | `}`
|  | `430` |  | ``
| 128 | `431` |  | `if (curEntry.Size < 0) {`
| 121 | `432` |  | `curEntry.Size = size;`
| 128 | `433` |  | `} else if (curEntry.Size != size) {`
| 0 | `434` |  | `throw new ZipException("size was " + size + ", but I expected " + curEntry.Size);`
|  | `435` |  | `}`
|  | `436` |  | ``
| 128 | `437` |  | `if (curEntry.CompressedSize < 0) {`
| 127 | `438` |  | `curEntry.CompressedSize = csize;`
| 128 | `439` |  | `} else if (curEntry.CompressedSize != csize) {`
| 0 | `440` |  | `throw new ZipException("compressed size was " + csize + ", but I expected " + curEntry.CompressedSize);`
|  | `441` |  | `}`
|  | `442` |  | ``
| 128 | `443` |  | `if (curEntry.Crc < 0) {`
| 114 | `444` |  | `curEntry.Crc = crc.Value;`
| 128 | `445` |  | `} else if (curEntry.Crc != crc.Value) {`
| 0 | `446` |  | `throw new ZipException("crc was " + crc.Value + ", but I expected " + curEntry.Crc);`
|  | `447` |  | `}`
|  | `448` |  | ``
| 128 | `449` |  | `offset += csize;`
|  | `450` |  | ``
| 128 | `451` |  | `if (curEntry.IsCrypted) {`
| 33 | `452` |  | `if (curEntry.AESKeySize > 0) {`
| 0 | `453` |  | `curEntry.CompressedSize += curEntry.AESOverheadSize;`
|  | `454` |  | ``
| 0 | `455` |  | `} else {`
| 33 | `456` |  | `curEntry.CompressedSize += ZipConstants.CryptoHeaderSize;`
|  | `457` |  | `}`
|  | `458` |  | `}`
|  | `459` |  | ``
|  | `460` |  | `// Patch the header if possible`
| 128 | `461` |  | `if (patchEntryHeader) {`
| 95 | `462` |  | `patchEntryHeader = false;`
|  | `463` |  | ``
| 95 | `464` |  | `long curPos = baseOutputStream_.Position;`
| 95 | `465` |  | `baseOutputStream_.Seek(crcPatchPos, SeekOrigin.Begin);`
| 95 | `466` |  | `WriteLeInt((int)curEntry.Crc);`
|  | `467` |  | ``
| 95 | `468` |  | `if (curEntry.LocalHeaderRequiresZip64) {`
|  | `469` |  | ``
| 91 | `470` |  | `if (sizePatchPos == -1) {`
| 0 | `471` |  | `throw new ZipException("Entry requires zip64 but this has been turned off");`
|  | `472` |  | `}`
|  | `473` |  | ``
| 91 | `474` |  | `baseOutputStream_.Seek(sizePatchPos, SeekOrigin.Begin);`
| 91 | `475` |  | `WriteLeLong(curEntry.Size);`
| 91 | `476` |  | `WriteLeLong(curEntry.CompressedSize);`
| 91 | `477` |  | `} else {`
| 4 | `478` |  | `WriteLeInt((int)curEntry.CompressedSize);`
| 4 | `479` |  | `WriteLeInt((int)curEntry.Size);`
|  | `480` |  | `}`
| 95 | `481` |  | `baseOutputStream_.Seek(curPos, SeekOrigin.Begin);`
|  | `482` |  | `}`
|  | `483` |  | ``
|  | `484` |  | `// Add data descriptor if flagged as required`
| 128 | `485` |  | `if ((curEntry.Flags & 8) != 0) {`
| 48 | `486` |  | `WriteLeInt(ZipConstants.DataDescriptorSignature);`
| 48 | `487` |  | `WriteLeInt(unchecked((int)curEntry.Crc));`
|  | `488` |  | ``
| 48 | `489` |  | `if (curEntry.LocalHeaderRequiresZip64) {`
| 43 | `490` |  | `WriteLeLong(curEntry.CompressedSize);`
| 43 | `491` |  | `WriteLeLong(curEntry.Size);`
| 43 | `492` |  | `offset += ZipConstants.Zip64DataDescriptorSize;`
| 43 | `493` |  | `} else {`
| 5 | `494` |  | `WriteLeInt((int)curEntry.CompressedSize);`
| 5 | `495` |  | `WriteLeInt((int)curEntry.Size);`
| 5 | `496` |  | `offset += ZipConstants.DataDescriptorSize;`
|  | `497` |  | `}`
|  | `498` |  | `}`
|  | `499` |  | ``
| 128 | `500` |  | `entries.Add(curEntry);`
| 128 | `501` |  | `curEntry = null;`
| 128 | `502` |  | `}`
|  | `503` |  | ``
|  | `504` |  | `void WriteEncryptionHeader(long crcValue)`
|  | `505` |  | `{`
| 33 | `506` |  | `offset += ZipConstants.CryptoHeaderSize;`
|  | `507` |  | ``
| 33 | `508` |  | `InitializePassword(Password);`
|  | `509` |  | ``
| 33 | `510` |  | `byte[] cryptBuffer = new byte[ZipConstants.CryptoHeaderSize];`
| 33 | `511` |  | `var rnd = new Random();`
| 33 | `512` |  | `rnd.NextBytes(cryptBuffer);`
| 33 | `513` |  | `cryptBuffer[11] = (byte)(crcValue >> 24);`
|  | `514` |  | ``
| 33 | `515` |  | `EncryptBlock(cryptBuffer, 0, cryptBuffer.Length);`
| 33 | `516` |  | `baseOutputStream_.Write(cryptBuffer, 0, cryptBuffer.Length);`
| 33 | `517` |  | `}`
|  | `518` |  | ``
|  | `519` |  | `private static void AddExtraDataAES(ZipEntry entry, ZipExtraData extraData)`
|  | `520` |  | `{`
|  | `521` |  | ``
|  | `522` |  | `// Vendor Version: AE-1 IS 1. AE-2 is 2. With AE-2 no CRC is required and 0 is stored.`
|  | `523` |  | `const int VENDOR_VERSION = 2;`
|  | `524` |  | `// Vendor ID is the two ASCII characters "AE".`
|  | `525` |  | `const int VENDOR_ID = 0x4541; //not 6965;`
| 0 | `526` |  | `extraData.StartNewEntry();`
|  | `527` |  | `// Pack AES extra data field see http://www.winzip.com/aes_info.htm`
|  | `528` |  | `//extraData.AddLeShort(7); // Data size (currently 7)`
| 0 | `529` |  | `extraData.AddLeShort(VENDOR_VERSION); // 2 = AE-2`
| 0 | `530` |  | `extraData.AddLeShort(VENDOR_ID); // "AE"`
| 0 | `531` |  | `extraData.AddData(entry.AESEncryptionStrength); // 1 = 128, 2 = 192, 3 = 256`
| 0 | `532` |  | `extraData.AddLeShort((int)entry.CompressionMethod); // The actual compression method used to compress the file`
| 0 | `533` |  | `extraData.AddNewEntry(0x9901);`
| 0 | `534` |  | `}`
|  | `535` |  | ``
|  | `536` |  | `// Replaces WriteEncryptionHeader for AES`
|  | `537` |  | `//`
|  | `538` |  | `private void WriteAESHeader(ZipEntry entry)`
|  | `539` |  | `{`
|  | `540` |  | `byte[] salt;`
|  | `541` |  | `byte[] pwdVerifier;`
| 0 | `542` |  | `InitializeAESPassword(entry, Password, out salt, out pwdVerifier);`
|  | `543` |  | `// File format for AES:`
|  | `544` |  | `// Size (bytes) Content`
|  | `545` |  | `// ------------ -------`
|  | `546` |  | `// Variable Salt value`
|  | `547` |  | `// 2 Password verification value`
|  | `548` |  | `// Variable Encrypted file data`
|  | `549` |  | `// 10 Authentication code`
|  | `550` |  | `//`
|  | `551` |  | `// Value in the "compressed size" fields of the local file header and the central directory entry`
|  | `552` |  | `// is the total size of all the items listed above. In other words, it is the total size of the`
|  | `553` |  | `// salt value, password verification value, encrypted data, and authentication code.`
| 0 | `554` |  | `baseOutputStream_.Write(salt, 0, salt.Length);`
| 0 | `555` |  | `baseOutputStream_.Write(pwdVerifier, 0, pwdVerifier.Length);`
| 0 | `556` |  | `}`
|  | `557` |  | ``
|  | `558` |  | `/// <summary>`
|  | `559` |  | `/// Writes the given buffer to the current entry.`
|  | `560` |  | `/// </summary>`
|  | `561` |  | `/// <param name="buffer">The buffer containing data to write.</param>`
|  | `562` |  | `/// <param name="offset">The offset of the first byte to write.</param>`
|  | `563` |  | `/// <param name="count">The number of bytes to write.</param>`
|  | `564` |  | `/// <exception cref="ZipException">Archive size is invalid</exception>`
|  | `565` |  | `/// <exception cref="System.InvalidOperationException">No entry is active.</exception>`
|  | `566` |  | `public override void Write(byte[] buffer, int offset, int count)`
|  | `567` |  | `{`
| 4503 | `568` |  | `if (curEntry == null) {`
| 0 | `569` |  | `throw new InvalidOperationException("No open entry.");`
|  | `570` |  | `}`
|  | `571` |  | ``
| 4503 | `572` |  | `if (buffer == null) {`
| 0 | `573` |  | `throw new ArgumentNullException(nameof(buffer));`
|  | `574` |  | `}`
|  | `575` |  | ``
| 4503 | `576` |  | `if (offset < 0) {`
| 0 | `577` |  | `throw new ArgumentOutOfRangeException(nameof(offset), "Cannot be negative");`
|  | `578` |  | `}`
|  | `579` |  | ``
| 4503 | `580` |  | `if (count < 0) {`
| 0 | `581` |  | `throw new ArgumentOutOfRangeException(nameof(count), "Cannot be negative");`
|  | `582` |  | `}`
|  | `583` |  | ``
| 4503 | `584` |  | `if ((buffer.Length - offset) < count) {`
| 0 | `585` |  | `throw new ArgumentException("Invalid offset/count combination");`
|  | `586` |  | `}`
|  | `587` |  | ``
| 4503 | `588` |  | `crc.Update(buffer, offset, count);`
| 4502 | `589` |  | `size += count;`
|  | `590` |  | ``
| 4502 | `591` |  | `switch (curMethod) {`
|  | `592` |  | `case CompressionMethod.Deflated:`
| 4303 | `593` |  | `base.Write(buffer, offset, count);`
| 4303 | `594` |  | `break;`
|  | `595` |  | ``
|  | `596` |  | `case CompressionMethod.Stored:`
| 199 | `597` |  | `if (Password != null) {`
| 99 | `598` |  | `CopyAndEncrypt(buffer, offset, count);`
| 99 | `599` |  | `} else {`
| 100 | `600` |  | `baseOutputStream_.Write(buffer, offset, count);`
|  | `601` |  | `}`
|  | `602` |  | `break;`
|  | `603` |  | `}`
| 100 | `604` |  | `}`
|  | `605` |  | ``
|  | `606` |  | `void CopyAndEncrypt(byte[] buffer, int offset, int count)`
|  | `607` |  | `{`
|  | `608` |  | `const int CopyBufferSize = 4096;`
| 99 | `609` |  | `byte[] localBuffer = new byte[CopyBufferSize];`
| 198 | `610` |  | `while (count > 0) {`
| 99 | `611` |  | `int bufferCount = (count < CopyBufferSize) ? count : CopyBufferSize;`
|  | `612` |  | ``
| 99 | `613` |  | `Array.Copy(buffer, offset, localBuffer, 0, bufferCount);`
| 99 | `614` |  | `EncryptBlock(localBuffer, 0, bufferCount);`
| 99 | `615` |  | `baseOutputStream_.Write(localBuffer, 0, bufferCount);`
| 99 | `616` |  | `count -= bufferCount;`
| 99 | `617` |  | `offset += bufferCount;`
|  | `618` |  | `}`
| 99 | `619` |  | `}`
|  | `620` |  | ``
|  | `621` |  | `/// <summary>`
|  | `622` |  | `/// Finishes the stream. This will write the central directory at the`
|  | `623` |  | `/// end of the zip file and flush the stream.`
|  | `624` |  | `/// </summary>`
|  | `625` |  | `/// <remarks>`
|  | `626` |  | `/// This is automatically called when the stream is closed.`
|  | `627` |  | `/// </remarks>`
|  | `628` |  | `/// <exception cref="System.IO.IOException">`
|  | `629` |  | `/// An I/O error occurs.`
|  | `630` |  | `/// </exception>`
|  | `631` |  | `/// <exception cref="ZipException">`
|  | `632` |  | `/// Comment exceeds the maximum length<br/>`
|  | `633` |  | `/// Entry name exceeds the maximum length`
|  | `634` |  | `/// </exception>`
|  | `635` |  | `public override void Finish()`
|  | `636` |  | `{`
| 88 | `637` |  | `if (entries == null) {`
| 2 | `638` |  | `return;`
|  | `639` |  | `}`
|  | `640` |  | ``
| 86 | `641` |  | `if (curEntry != null) {`
| 77 | `642` |  | `CloseEntry();`
|  | `643` |  | `}`
|  | `644` |  | ``
| 86 | `645` |  | `long numEntries = entries.Count;`
| 86 | `646` |  | `long sizeEntries = 0;`
|  | `647` |  | ``
| 428 | `648` |  | `foreach (ZipEntry entry in entries) {`
| 128 | `649` |  | `WriteLeInt(ZipConstants.CentralHeaderSignature);`
| 128 | `650` |  | `WriteLeShort(ZipConstants.VersionMadeBy);`
| 128 | `651` |  | `WriteLeShort(entry.Version);`
| 128 | `652` |  | `WriteLeShort(entry.Flags);`
| 128 | `653` |  | `WriteLeShort((short)entry.CompressionMethodForHeader);`
| 128 | `654` |  | `WriteLeInt((int)entry.DosTime);`
| 128 | `655` |  | `WriteLeInt((int)entry.Crc);`
|  | `656` |  | ``
| 128 | `657` |  | `if (entry.IsZip64Forced() ||`
| 128 | `658` |  | `(entry.CompressedSize >= uint.MaxValue)) {`
| 121 | `659` |  | `WriteLeInt(-1);`
| 121 | `660` |  | `} else {`
| 7 | `661` |  | `WriteLeInt((int)entry.CompressedSize);`
|  | `662` |  | `}`
|  | `663` |  | ``
| 128 | `664` |  | `if (entry.IsZip64Forced() ||`
| 128 | `665` |  | `(entry.Size >= uint.MaxValue)) {`
| 121 | `666` |  | `WriteLeInt(-1);`
| 121 | `667` |  | `} else {`
| 7 | `668` |  | `WriteLeInt((int)entry.Size);`
|  | `669` |  | `}`
|  | `670` |  | ``
| 128 | `671` |  | `byte[] name = ZipConstants.ConvertToArray(entry.Flags, entry.Name);`
|  | `672` |  | ``
| 128 | `673` |  | `if (name.Length > 0xffff) {`
| 0 | `674` |  | `throw new ZipException("Name too long.");`
|  | `675` |  | `}`
|  | `676` |  | ``
| 128 | `677` |  | `var ed = new ZipExtraData(entry.ExtraData);`
|  | `678` |  | ``
| 128 | `679` |  | `if (entry.CentralHeaderRequiresZip64) {`
| 121 | `680` |  | `ed.StartNewEntry();`
| 121 | `681` |  | `if (entry.IsZip64Forced() ||`
| 121 | `682` |  | `(entry.Size >= 0xffffffff)) {`
| 121 | `683` |  | `ed.AddLeLong(entry.Size);`
|  | `684` |  | `}`
|  | `685` |  | ``
| 121 | `686` |  | `if (entry.IsZip64Forced() ||`
| 121 | `687` |  | `(entry.CompressedSize >= 0xffffffff)) {`
| 121 | `688` |  | `ed.AddLeLong(entry.CompressedSize);`
|  | `689` |  | `}`
|  | `690` |  | ``
| 121 | `691` |  | `if (entry.Offset >= 0xffffffff) {`
| 0 | `692` |  | `ed.AddLeLong(entry.Offset);`
|  | `693` |  | `}`
|  | `694` |  | ``
| 121 | `695` |  | `ed.AddNewEntry(1);`
| 121 | `696` |  | `} else {`
| 7 | `697` |  | `ed.Delete(1);`
|  | `698` |  | `}`
|  | `699` |  | ``
| 128 | `700` |  | `if (entry.AESKeySize > 0) {`
| 0 | `701` |  | `AddExtraDataAES(entry, ed);`
|  | `702` |  | `}`
| 128 | `703` |  | `byte[] extra = ed.GetEntryData();`
|  | `704` |  | ``
| 128 | `705` |  | `byte[] entryComment =`
| 128 | `706` |  | `(entry.Comment != null) ?`
| 128 | `707` |  | `ZipConstants.ConvertToArray(entry.Flags, entry.Comment) :`
| 128 | `708` |  | `new byte[0];`
|  | `709` |  | ``
| 128 | `710` |  | `if (entryComment.Length > 0xffff) {`
| 0 | `711` |  | `throw new ZipException("Comment too long.");`
|  | `712` |  | `}`
|  | `713` |  | ``
| 128 | `714` |  | `WriteLeShort(name.Length);`
| 128 | `715` |  | `WriteLeShort(extra.Length);`
| 128 | `716` |  | `WriteLeShort(entryComment.Length);`
| 128 | `717` |  | `WriteLeShort(0); // disk number`
| 128 | `718` |  | `WriteLeShort(0); // internal file attributes`
|  | `719` |  | `// external file attributes`
|  | `720` |  | ``
| 128 | `721` |  | `if (entry.ExternalFileAttributes != -1) {`
| 4 | `722` |  | `WriteLeInt(entry.ExternalFileAttributes);`
| 4 | `723` |  | `} else {`
| 124 | `724` |  | `if (entry.IsDirectory) { // mark entry as directory (from nikolam.AT.perfectinfo.com)`
| 8 | `725` |  | `WriteLeInt(16);`
| 8 | `726` |  | `} else {`
| 116 | `727` |  | `WriteLeInt(0);`
|  | `728` |  | `}`
|  | `729` |  | `}`
|  | `730` |  | ``
| 128 | `731` |  | `if (entry.Offset >= uint.MaxValue) {`
| 0 | `732` |  | `WriteLeInt(-1);`
| 0 | `733` |  | `} else {`
| 128 | `734` |  | `WriteLeInt((int)entry.Offset);`
|  | `735` |  | `}`
|  | `736` |  | ``
| 128 | `737` |  | `if (name.Length > 0) {`
| 128 | `738` |  | `baseOutputStream_.Write(name, 0, name.Length);`
|  | `739` |  | `}`
|  | `740` |  | ``
| 128 | `741` |  | `if (extra.Length > 0) {`
| 121 | `742` |  | `baseOutputStream_.Write(extra, 0, extra.Length);`
|  | `743` |  | `}`
|  | `744` |  | ``
| 128 | `745` |  | `if (entryComment.Length > 0) {`
| 0 | `746` |  | `baseOutputStream_.Write(entryComment, 0, entryComment.Length);`
|  | `747` |  | `}`
|  | `748` |  | ``
| 128 | `749` |  | `sizeEntries += ZipConstants.CentralHeaderBaseSize + name.Length + extra.Length + entryComment.Length;`
|  | `750` |  | `}`
|  | `751` |  | ``
| 86 | `752` |  | `using (ZipHelperStream zhs = new ZipHelperStream(baseOutputStream_)) {`
| 86 | `753` |  | `zhs.WriteEndOfCentralDirectory(numEntries, sizeEntries, offset, zipComment);`
| 85 | `754` |  | `}`
|  | `755` |  | ``
| 85 | `756` |  | `entries = null;`
| 85 | `757` |  | `}`
|  | `758` |  | ``
|  | `759` |  | `#region Instance Fields`
|  | `760` |  | `/// <summary>`
|  | `761` |  | `/// The entries for the archive.`
|  | `762` |  | `/// </summary>`
| 87 | `763` |  | `ArrayList entries = new ArrayList();`
|  | `764` |  | ``
|  | `765` |  | `/// <summary>`
|  | `766` |  | `/// Used to track the crc of data added to entries.`
|  | `767` |  | `/// </summary>`
| 87 | `768` |  | `Crc32 crc = new Crc32();`
|  | `769` |  | ``
|  | `770` |  | `/// <summary>`
|  | `771` |  | `/// The current entry being added.`
|  | `772` |  | `/// </summary>`
|  | `773` |  | `ZipEntry curEntry;`
|  | `774` |  | ``
| 87 | `775` |  | `int defaultCompressionLevel = Deflater.DEFAULT_COMPRESSION;`
|  | `776` |  | ``
| 87 | `777` |  | `CompressionMethod curMethod = CompressionMethod.Deflated;`
|  | `778` |  | ``
|  | `779` |  | `/// <summary>`
|  | `780` |  | `/// Used to track the size of data for an entry during writing.`
|  | `781` |  | `/// </summary>`
|  | `782` |  | `long size;`
|  | `783` |  | ``
|  | `784` |  | `/// <summary>`
|  | `785` |  | `/// Offset to be recorded for each entry in the central header.`
|  | `786` |  | `/// </summary>`
|  | `787` |  | `long offset;`
|  | `788` |  | ``
|  | `789` |  | `/// <summary>`
|  | `790` |  | `/// Comment for the entire archive recorded in central header.`
|  | `791` |  | `/// </summary>`
| 87 | `792` |  | `byte[] zipComment = new byte[0];`
|  | `793` |  | ``
|  | `794` |  | `/// <summary>`
|  | `795` |  | `/// Flag indicating that header patching is required for the current entry.`
|  | `796` |  | `/// </summary>`
|  | `797` |  | `bool patchEntryHeader;`
|  | `798` |  | ``
|  | `799` |  | `/// <summary>`
|  | `800` |  | `/// Position to patch crc`
|  | `801` |  | `/// </summary>`
| 87 | `802` |  | `long crcPatchPos = -1;`
|  | `803` |  | ``
|  | `804` |  | `/// <summary>`
|  | `805` |  | `/// Position to patch size.`
|  | `806` |  | `/// </summary>`
| 87 | `807` |  | `long sizePatchPos = -1;`
|  | `808` |  | ``
|  | `809` |  | `// Default is dynamic which is not backwards compatible and can cause problems`
|  | `810` |  | `// with XP's built in compression which cant read Zip64 archives.`
|  | `811` |  | `// However it does avoid the situation were a large file is added and cannot be completed correctly.`
|  | `812` |  | `// NOTE: Setting the size for entries before they are added is the best solution!`
| 87 | `813` |  | `UseZip64 useZip64_ = UseZip64.Dynamic;`
|  | `814` |  | `#endregion`
|  | `815` |  | `}`
|  | `816` |  | `}`