init repo

DocService/fileDownloader.ashx

@@ -0,0 +1,106 @@
+<%@ WebHandler Language="C#" Class="fileDownloader" %>
+/*
+ * (c) Copyright Ascensio System SIA 2010-2014
+ *
+ * This program is a free software product. You can redistribute it and/or 
+ * modify it under the terms of the GNU Affero General Public License (AGPL) 
+ * version 3 as published by the Free Software Foundation. In accordance with 
+ * Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect 
+ * that Ascensio System SIA expressly excludes the warranty of non-infringement
+ * of any third-party rights.
+ *
+ * This program is distributed WITHOUT ANY WARRANTY; without even the implied 
+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR  PURPOSE. For 
+ * details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
+ *
+ * You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia,
+ * EU, LV-1021.
+ *
+ * The  interactive user interfaces in modified source and object code versions
+ * of the Program must display Appropriate Legal Notices, as required under 
+ * Section 5 of the GNU AGPL version 3.
+ *
+ * Pursuant to Section 7(b) of the License you must retain the original Product
+ * logo when distributing the program. Pursuant to Section 7(e) we decline to
+ * grant you any rights under trademark law for use of our trademarks.
+ *
+ * All the Product's GUI elements, including illustrations and icon sets, as
+ * well as technical writing content are licensed under the terms of the
+ * Creative Commons Attribution-ShareAlike 4.0 International. See the License
+ * terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
+ *
+ */
+ 
+
+
+using System;
+using System.Net;
+using System.Configuration;
+using System.Web;
+using System.IO;
+using System.Text;
+
+public class fileDownloader : IHttpHandler {
+    
+    public void ProcessRequest (HttpContext context) {
+        try
+        {
+
+            System.IO.FileInfo file = new System.IO.FileInfo(Convert.ToString(context.Server.MapPath(context.Server.UrlDecode("~" + context.Request.Params[0]))));
+            string sOutputFilename = null;
+            if (context.Request.Params.Count > 1)
+                sOutputFilename = context.Server.UrlDecode(context.Request.Params[1]);
+            if (string.IsNullOrEmpty(sOutputFilename))
+                sOutputFilename = file.Name;
+            if (!file.Exists)
+                return;
+            context.Response.Clear();
+            context.Response.ContentType = "application/octet-stream";
+            if (context.Request.ServerVariables.Get("HTTP_USER_AGENT").Contains("MSIE"))
+                context.Response.AppendHeader("Content-Disposition", "attachment; filename=\"" + context.Server.UrlEncode(sOutputFilename) + "\"");
+            else
+                context.Response.AppendHeader("Content-Disposition", "attachment; filename=\"" + sOutputFilename + "\"");
+            context.Response.AddHeader("Content-Length", file.Length.ToString());
+            context.Response.TransmitFile(file.FullName);
+            context.Response.Flush();
+            context.Response.End();
+        }
+        catch(Exception){}
+    }
+ 
+    public bool IsReusable {
+        get {
+            return false;
+        }
+    }
+    
+    public static string GetIP4Address()
+    {
+        string IP4Address = String.Empty;
+
+        foreach (IPAddress IPA in Dns.GetHostAddresses(HttpContext.Current.Request.UserHostAddress))
+        {
+            if (IPA.AddressFamily.ToString() == "InterNetwork")
+            {
+                IP4Address = IPA.ToString();
+                break;
+            }
+        }
+
+        if (IP4Address != String.Empty)
+        {
+            return IP4Address;
+        }
+
+        foreach (IPAddress IPA in Dns.GetHostAddresses(Dns.GetHostName()))
+        {
+            if (IPA.AddressFamily.ToString() == "InterNetwork")
+            {
+                IP4Address = IPA.ToString();
+                break;
+            }
+        }
+
+        return IP4Address;
+    }
+}