1
/**//*
2
* FCKeditor - The text editor for internet
3 * Copyright (C) 2003-2005 Frederico Caldeira Knabben
4 *
5 * Licensed under the terms of the GNU Lesser General Public License:
6 * http://www.opensource.org/licenses/lgpl-license.php
7 *
8 * For further information visit:
9 * http://www.fckeditor.net/
10 *
11 * "Support Open Source software. What about a donation today?"
12 *
13 * File Name: FileBrowserConnector.cs
14 * This is the code behind of the connector.aspx page used by the
15 * File Browser.
16 *
17 * File Authors:
18 * Frederico Caldeira Knabben (fredck@fckeditor.net)
19
*/
20
21using System;
22using System.Globalization;
23using System.Xml;
24using System.Web;
25
26namespace FredCK.FCKeditorV2
27...{
28 public class FileBrowserConnector : FileWorkerBase
29
...{
30 protected override void OnLoad(EventArgs e)
31 ...{
32 // Get the main request informaiton.
33 string sCommand = Request.QueryString["Command"];
34 if (sCommand == null) return;
35
36 string sResourceType = Request.QueryString["Type"];
37 if (sResourceType == null) return;
38
39 string sCurrentFolder = Request.QueryString["CurrentFolder"];
40 if (sCurrentFolder == null) return;
41
42 // Check the current folder syntax (must begin and start with a slash).
43 if (!sCurrentFolder.EndsWith("/"))
44 sCurrentFolder += "/";
45 if (!sCurrentFolder.StartsWith("/"))
46 sCurrentFolder = "/" + sCurrentFolder;
47
48 // File Upload doesn't have to return XML, so it must be intercepted before anything.
49 if (sCommand == "FileUpload")
50 ...{
51 this.FileUpload(sResourceType, sCurrentFolder);
52 return;
53
}
54
55 // Cleans the response buffer.
56 Response.ClearHeaders();
57 Response.Clear();
58
59 // Prevent the browser from caching the result.
60 Response.CacheControl = "no-cache";
61
62 // Set the response format.
63 Response.ContentEncoding = System.Text.UTF8Encoding.UTF8;
64 Response.ContentType = "text/xml";
65
66 XmlDocument oXML = new XmlDocument();
67 XmlNode oConnectorNode = CreateBaseXml(oXML, sCommand, sResourceType, sCurrentFolder);
68
69 // Execute the required command.
70 switch (sCommand)
71 ...{
72 case "GetFolders":
73 this.GetFolders(oConnectorNode, sResourceType, sCurrentFolder);
74 break;
75 case "GetFoldersAndFiles":
76 this.GetFolders(oConnectorNode, sResourceType, sCurrentFolder);
77 this.GetFiles(oConnectorNode, sResourceType, sCurrentFolder);
78 break;
79 case "CreateFolder":
80 this.CreateFolder(oConnectorNode, sResourceType, sCurrentFolder);
81 break;
82 }
83
84 // Output the resulting XML.
85 Response.Write(oXML.OuterXml);
86
87 Response.End();
88 }
89
90 Base XML Creation#region Base XML Creation
91
92 private XmlNode CreateBaseXml(XmlDocument xml, string command, string resourceType, string currentFolder)
93 ...{
94 // Create the XML document header.
95 xml.AppendChild(xml.CreateXmlDeclaration("1.0", "utf-8", null));
96
97 // Create the main "Connector" node.
98 XmlNode oConnectorNode = XmlUtil.AppendElement(xml, "Connector");
99 XmlUtil.SetAttribute(oConnectorNode, "command", command);
100 XmlUtil.SetAttribute(oConnectorNode, "resourceType", resourceType);
101
102 // Add the current folder node.
103 XmlNode oCurrentNode = XmlUtil.AppendElement(oConnectorNode, "CurrentFolder");
104 XmlUtil.SetAttribute(oCurrentNode, "path", currentFolder);
105 XmlUtil.SetAttribute(oCurrentNode, "url", GetUrlFromPath(resourceType, currentFolder));
106
107 return oConnectorNode;
108 }
109
110 #endregion
111
112 Command Handlers#region Command Handlers
113
114 private void GetFolders(XmlNode connectorNode, string resourceType, string currentFolder)
115 ...{
116 // Map the virtual path to the local server path.
117 string sServerDir = this.ServerMapFolder(resourceType, currentFolder);
118
119 // Create the "Folders" node.
120 XmlNode oFoldersNode = XmlUtil.AppendElement(connectorNode, "Folders");
121
122 System.IO.DirectoryInfo oDir = new System.IO.DirectoryInfo(sServerDir);
123 System.IO.DirectoryInfo[] aSubDirs = oDir.GetDirectories();
124
125 for (int i = 0; i < aSubDirs.Length; i++)
126 ...{
127 // Create the "Folders" node.
128 XmlNode oFolderNode = XmlUtil.AppendElement(oFoldersNode, "Folder");
129 XmlUtil.SetAttribute(oFolderNode, "name", aSubDirs[i].Name);
130 }
131 }
132
133 private void GetFiles(XmlNode connectorNode, string resourceType, string currentFolder)
134 ...{
135 // Map the virtual path to the local server path.
136 string sServerDir = this.ServerMapFolder(resourceType, currentFolder);
137
138 // Create the "Files" node.
139 XmlNode oFilesNode = XmlUtil.AppendElement(connectorNode, "Files");
140
141 System.IO.DirectoryInfo oDir = new System.IO.DirectoryInfo(sServerDir);
142 System.IO.FileInfo[] aFiles = oDir.GetFiles();
143
144 for (int i = 0; i < aFiles.Length; i++)
145 ...{
146 Decimal iFileSize = Math.Round((Decimal)aFiles[i].Length / 1024);
147 if (iFileSize < 1 && aFiles[i].Length != 0) iFileSize = 1;
148
149 // Create the "File" node.
150 XmlNode oFileNode = XmlUtil.AppendElement(oFilesNode, "File");
151 XmlUtil.SetAttribute(oFileNode, "name", aFiles[i].Name);
152 XmlUtil.SetAttribute(oFileNode, "size", iFileSize.ToString(CultureInfo.InvariantCulture));
153 }
154 }
155
156 private void CreateFolder(XmlNode connectorNode, string resourceType, string currentFolder)
157 ...{
158 string sErrorNumber = "0";
159
160 string sNewFolderName = Request.QueryString["NewFolderName"];
161
162 if (sNewFolderName == null || sNewFolderName.Length == 0)
163 sErrorNumber = "102";
164 else
165 ...{
166 // Map the virtual path to the local server path of the current folder.
167 string sServerDir = this.ServerMapFolder(resourceType, currentFolder);
168
169 try
170 ...{
171 Util.CreateDirectory(System.IO.Path.Combine(sServerDir, sNewFolderName));
172 }
173 catch (ArgumentException)
174 ...{
175 sErrorNumber = "102";
176 }
177 catch (System.IO.PathTooLongException)
178 ...{
179 sErrorNumber = "102";
180 }
181 catch (System.IO.IOException)
182 ...{
183 sErrorNumber = "101";
184 }
185 catch (System.Security.SecurityException)
186 ...{
187 sErrorNumber = "103";
188 }
189 catch (Exception)
190 ...{
191 sErrorNumber = "110";
192 }
193 }
194
195 // Create the "Error" node.
196 XmlNode oErrorNode = XmlUtil.AppendElement(connectorNode, "Error");
197 XmlUtil.SetAttribute(oErrorNode, "number", sErrorNumber);
198 }
199
200 private void FileUpload(string resourceType, string currentFolder)
201 ...{
202 HttpPostedFile oFile = Request.Files["NewFile"];
203
204 string sErrorNumber = "0";
205 string sFileName = "";
206
207 if (oFile != null)
208 ...{
209 // Map the virtual path to the local server path.
210 string sServerDir = this.ServerMapFolder(resourceType, currentFolder);
211
212 // Get the uploaded file name.
213 sFileName = System.IO.Path.GetFileName(oFile.FileName);
214
215 int iCounter = 0;
216
217 while (true)
218 ...{
219 string sFilePath = System.IO.Path.Combine(sServerDir, sFileName);
220 //判断文件是否可以上传
221 if (CheckUploadFileExtension(sFileName))
222 ...{
223 if (System.IO.File.Exists(sFilePath))
224 ...{
225 iCounter++;
226 sFileName =
227 System.IO.Path.GetFileNameWithoutExtension(oFile.FileName) +
228 "(" + iCounter + ")" +
229 System.IO.Path.GetExtension(oFile.FileName);
230
231 sErrorNumber = "201";
232 }
233 else
234 ...{
235 oFile.SaveAs(sFilePath);
236 break;
237 }
238 }
239 else
240 ...{
241 //不允许上传
242 sErrorNumber = "202";
243 break;
244 }
245 }
246 }
247 else
248 sErrorNumber = "202";
249
250 Response.Clear();
251
252 Response.Write("<script type=\"text/javascript\">");
253 Response.Write("window.parent.frames['frmUpload'].OnUploadCompleted(" + sErrorNumber + ",'" + sFileName.Replace("'", "\\'") + "') ;");
254 Response.Write("</script>");
255
256 Response.End();
257 }
258
259 #endregion
260
261 Directory Mapping#region Directory Mapping
262
263 private string ServerMapFolder(string resourceType, string folderPath)
264 ...{
265 // Get the resource type directory.
266 string sResourceTypePath = System.IO.Path.Combine(this.UserFilesDirectory, resourceType);
267
268 // Ensure that the directory exists.
269 Util.CreateDirectory(sResourceTypePath);
270
271 // Return the resource type directory combined with the required path.
272 return System.IO.Path.Combine(sResourceTypePath, folderPath.TrimStart('/'));
273 }
274
275 private string GetUrlFromPath(string resourceType, string folderPath)
276 ...{
277 if (resourceType == null || resourceType.Length == 0)
278 return this.UserFilesPath.TrimEnd('/') + folderPath;
279 else
280 return this.UserFilesPath + resourceType + folderPath;
281 }
282
283 #endregion
284 }
285}
286
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