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//
// ZipFile.cs
//
// Author:
// João Matos <joao.matos@xamarin.com>
// Martin Baulig <martin.baulig@xamarin.com>
//
// Copyright (c) 2013 Xamarin Inc. (http://www.xamarin.com)
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;
using System.Text;
namespace System.IO.Compression
{
public static class ZipFile
{
public static void CreateFromDirectory (
string sourceDirectoryName, string destinationArchiveFileName)
{
CreateFromDirectory (sourceDirectoryName, destinationArchiveFileName,
CompressionLevel.Fastest, includeBaseDirectory: false);
}
public static void CreateFromDirectory (
string sourceDirectoryName, string destinationArchiveFileName,
CompressionLevel compressionLevel, bool includeBaseDirectory)
{
CreateFromDirectory (sourceDirectoryName, destinationArchiveFileName,
CompressionLevel.Fastest, includeBaseDirectory, Encoding.UTF8);
}
public static void CreateFromDirectory (
string sourceDirectoryName,
string destinationArchiveFileName,
CompressionLevel compressionLevel,
bool includeBaseDirectory,
Encoding entryNameEncoding)
{
if (sourceDirectoryName == null)
throw new ArgumentNullException ("sourceDirectoryName");
if (destinationArchiveFileName == null)
throw new ArgumentNullException ("destinationArchiveFileName");
if (string.IsNullOrWhiteSpace (sourceDirectoryName))
throw new ArgumentException ("sourceDirectoryName");
if (string.IsNullOrWhiteSpace (destinationArchiveFileName))
throw new ArgumentException ("destinationArchiveFileName");
if (entryNameEncoding == Encoding.Unicode ||
entryNameEncoding == Encoding.UTF32 ||
entryNameEncoding == Encoding.UTF7)
throw new ArgumentException ("entryNameEncoding");
if (entryNameEncoding == null)
entryNameEncoding = Encoding.UTF8;
if (!Directory.Exists (sourceDirectoryName))
throw new DirectoryNotFoundException ("sourceDirectoryName is invalid or does not exist");
var sourceDir = new DirectoryInfo (Path.GetFullPath (sourceDirectoryName));
string fullBaseName = sourceDir.FullName;
if (includeBaseDirectory && sourceDir.Parent != null)
fullBaseName = sourceDir.Parent.FullName;
bool hasEntries = false;
char[] separators = new char[] {
Path.DirectorySeparatorChar,
Path.AltDirectorySeparatorChar
};
using (var zipFile = ZipFile.Open (destinationArchiveFileName, ZipArchiveMode.Create,
entryNameEncoding)) {
var entries = sourceDir.EnumerateFileSystemInfos ("*", SearchOption.AllDirectories);
foreach (var entry in entries) {
hasEntries = true;
int length = entry.FullName.Length - fullBaseName.Length;
string entryName = entry.FullName.Substring(fullBaseName.Length, length);
entryName = entryName.TrimStart(separators);
if (entry is FileInfo)
zipFile.CreateEntryFromFile (entry.FullName, entryName, compressionLevel);
else
zipFile.CreateEntry (entryName + Path.DirectorySeparatorChar);
}
// Create the base directory even if we had no entries
if (includeBaseDirectory && !hasEntries)
zipFile.CreateEntry(sourceDir.Name + Path.DirectorySeparatorChar);
}
}
public static void ExtractToDirectory (
string sourceArchiveFileName, string destinationDirectoryName)
{
ExtractToDirectory (sourceArchiveFileName, destinationDirectoryName,
Encoding.UTF8);
}
public static void ExtractToDirectory (
string sourceArchiveFileName, string destinationDirectoryName,
Encoding entryNameEncoding)
{
if (sourceArchiveFileName == null)
throw new ArgumentNullException ("sourceArchiveFileName");
using (ZipArchive zipArchive = ZipFile.Open(sourceArchiveFileName,
ZipArchiveMode.Read, entryNameEncoding))
{
zipArchive.ExtractToDirectory(destinationDirectoryName);
}
}
public static ZipArchive Open (
string archiveFileName, ZipArchiveMode mode)
{
return Open (archiveFileName, mode);
}
public static ZipArchive Open (
string archiveFileName, ZipArchiveMode mode,
Encoding entryNameEncoding)
{
if (archiveFileName == null)
throw new ArgumentNullException ("archiveFileName");
if (string.IsNullOrWhiteSpace (archiveFileName))
throw new ArgumentException ("archiveFileName");
FileStream stream;
switch (mode) {
case ZipArchiveMode.Read:
if (!File.Exists (archiveFileName))
throw new FileNotFoundException ();
stream = new FileStream (archiveFileName, FileMode.Open, FileAccess.Read,
FileShare.Read);
break;
case ZipArchiveMode.Create:
if (File.Exists (archiveFileName))
throw new IOException ("mode is set to Create but the file already exists");
stream = new FileStream (archiveFileName, FileMode.CreateNew, FileAccess.Write);
break;
case ZipArchiveMode.Update:
stream = new FileStream (archiveFileName, FileMode.OpenOrCreate,
FileAccess.ReadWrite);
break;
default:
throw new ArgumentOutOfRangeException ();
}
return new ZipArchive (stream, mode, false, entryNameEncoding);
}
public static ZipArchive OpenRead (string archiveFileName)
{
return ZipFile.Open (archiveFileName, ZipArchiveMode.Read);
}
}
}
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