1: /*
2: Copyright (c) 2011 <a href="http://www.gutgames.com">James Craig</a>
3:
4: Permission is hereby granted, free of charge, to any person obtaining a copy
5: of this software and associated documentation files (the "Software"), to deal
6: in the Software without restriction, including without limitation the rights
7: to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8: copies of the Software, and to permit persons to whom the Software is
9: furnished to do so, subject to the following conditions:
10:
11: The above copyright notice and this permission notice shall be included in
12: all copies or substantial portions of the Software.
13:
14: THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15: IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16: FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17: AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18: LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19: OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
20: THE SOFTWARE.*/
21:
22: #region Usings
23: using System;
24: using System.Collections.Generic;
25: using System.Linq;
26: using System.Text;
27: using System.IO.Packaging;
28: using System.IO;
29: #endregion
30:
31: namespace Utilities.FileFormats.Zip
32: { 33: /// <summary>
34: /// Helper class for dealing with zip files
35: /// </summary>
36: public class ZipFile : IDisposable
37: { 38: #region Constructor
39:
40: /// <summary>
41: /// Constructor
42: /// </summary>
43: /// <param name="FilePath">Path to the zip file</param>
44: /// <param name="Overwrite">Should the zip file be overwritten?</param>
45: public ZipFile(string FilePath, bool Overwrite)
46: { 47: if (string.IsNullOrEmpty(FilePath))
48: throw new ArgumentNullException("FilePath"); 49: ZipFileStream = new FileStream(FilePath, Overwrite ? FileMode.Create : FileMode.OpenOrCreate);
50: }
51:
52: #endregion
53:
54: #region Properties
55:
56: /// <summary>
57: /// Zip file's FileStream
58: /// </summary>
59: protected virtual FileStream ZipFileStream { get; set; } 60:
61: #endregion
62:
63: #region Functions
64:
65: /// <summary>
66: /// Adds a folder to the zip file
67: /// </summary>
68: /// <param name="Folder">Folder to add</param>
69: public virtual void AddFolder(string Folder)
70: { 71: if (string.IsNullOrEmpty(Folder))
72: throw new ArgumentNullException("Folder"); 73: if (Folder.EndsWith(@"\"))
74: Folder = Folder.Remove(Folder.Length - 1);
75: using (Package Package = ZipPackage.Open(ZipFileStream, FileMode.OpenOrCreate))
76: { 77: List<FileInfo> Files = Utilities.IO.FileManager.FileList(Folder, true);
78: foreach (FileInfo File in Files)
79: { 80: string FilePath = File.FullName.Replace(Folder, "");
81: AddFile(FilePath, File, Package);
82: }
83: }
84: }
85:
86: /// <summary>
87: /// Adds a file to the zip file
88: /// </summary>
89: /// <param name="File">File to add</param>
90: public virtual void AddFile(string File)
91: { 92: if (string.IsNullOrEmpty(File))
93: throw new ArgumentNullException("File"); 94: if (!Utilities.IO.FileManager.FileExists(File))
95: throw new ArgumentException("File"); 96: using (Package Package = ZipPackage.Open(ZipFileStream))
97: { 98: AddFile(File, new FileInfo(File), Package);
99: }
100: }
101:
102: /// <summary>
103: /// Uncompresses the zip file to the specified folder
104: /// </summary>
105: /// <param name="Folder">Folder to uncompress the file in</param>
106: public virtual void UncompressFile(string Folder)
107: { 108: if (string.IsNullOrEmpty(Folder))
109: throw new ArgumentNullException(Folder);
110: Utilities.IO.FileManager.CreateDirectory(Folder);
111: using (Package Package = ZipPackage.Open(ZipFileStream, FileMode.Open, FileAccess.Read))
112: { 113: foreach (PackageRelationship Relationship in Package.GetRelationshipsByType("http://schemas.microsoft.com/opc/2006/sample/document")) 114: { 115: Uri UriTarget = PackUriHelper.ResolvePartUri(new Uri("/", UriKind.Relative), Relationship.TargetUri); 116: PackagePart Document = Package.GetPart(UriTarget);
117: Extract(Document, Folder);
118: }
119: if (File.Exists(Folder + @"\[Content_Types].xml"))
120: File.Delete(Folder + @"\[Content_Types].xml");
121: }
122: }
123:
124: /// <summary>
125: /// Extracts an individual file
126: /// </summary>
127: /// <param name="Document">Document to extract</param>
128: /// <param name="Folder">Folder to extract it into</param>
129: protected virtual void Extract(PackagePart Document, string Folder)
130: { 131: if (string.IsNullOrEmpty(Folder))
132: throw new ArgumentNullException(Folder);
133: string Location = Folder + System.Web.HttpUtility.UrlDecode(Document.Uri.ToString()).Replace('\\', '/'); 134: Utilities.IO.FileManager.CreateDirectory(Path.GetDirectoryName(Location));
135: byte[] Data = new byte[1024];
136: using (FileStream FileStream = new FileStream(Location, FileMode.Create))
137: { 138: Stream DocumentStream = Document.GetStream();
139: while (true)
140: { 141: int Size = DocumentStream.Read(Data, 0, 1024);
142: FileStream.Write(Data, 0, Size);
143: if (Size != 1024)
144: break;
145: }
146: FileStream.Close();
147: }
148: }
149:
150: /// <summary>
151: /// Adds a file to the zip file
152: /// </summary>
153: /// <param name="File">File to add</param>
154: /// <param name="FileInfo">File information</param>
155: /// <param name="Package">Package to add the file to</param>
156: protected virtual void AddFile(string File, FileInfo FileInfo, Package Package)
157: { 158: if (string.IsNullOrEmpty(File))
159: throw new ArgumentNullException("File"); 160: if (!Utilities.IO.FileManager.FileExists(FileInfo.FullName))
161: throw new ArgumentException("File"); 162: Uri UriPath = PackUriHelper.CreatePartUri(new Uri(File, UriKind.Relative));
163: PackagePart PackagePart = Package.CreatePart(UriPath, System.Net.Mime.MediaTypeNames.Text.Xml, CompressionOption.Maximum);
164: byte[] Data = null;
165: Utilities.IO.FileManager.GetFileContents(FileInfo.FullName, out Data);
166: PackagePart.GetStream().Write(Data, 0, Data.Count());
167: Package.CreateRelationship(PackagePart.Uri, TargetMode.Internal, "http://schemas.microsoft.com/opc/2006/sample/document");
168: }
169:
170: #endregion
171:
172: #region IDisposable Members
173:
174: public void Dispose()
175: { 176: if (ZipFileStream != null)
177: { 178: ZipFileStream.Close();
179: ZipFileStream.Dispose();
180: ZipFileStream = null;
181: }
182: }
183:
184: #endregion
185: }
186: }
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