106 lines
4 KiB
Plaintext
106 lines
4 KiB
Plaintext
<%@ WebHandler Language="C#" Class="fileDownloader" %>
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/*
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* (c) Copyright Ascensio System SIA 2010-2015
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*
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* This program is a free software product. You can redistribute it and/or
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* modify it under the terms of the GNU Affero General Public License (AGPL)
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* version 3 as published by the Free Software Foundation. In accordance with
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* Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
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* that Ascensio System SIA expressly excludes the warranty of non-infringement
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* of any third-party rights.
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*
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* This program is distributed WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For
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* details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
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*
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* You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia,
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* EU, LV-1021.
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*
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* The interactive user interfaces in modified source and object code versions
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* of the Program must display Appropriate Legal Notices, as required under
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* Section 5 of the GNU AGPL version 3.
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*
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* Pursuant to Section 7(b) of the License you must retain the original Product
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* logo when distributing the program. Pursuant to Section 7(e) we decline to
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* grant you any rights under trademark law for use of our trademarks.
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*
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* All the Product's GUI elements, including illustrations and icon sets, as
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* well as technical writing content are licensed under the terms of the
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* Creative Commons Attribution-ShareAlike 4.0 International. See the License
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* terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
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*
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*/
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using System;
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using System.Net;
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using System.Configuration;
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using System.Web;
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using System.IO;
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using System.Text;
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public class fileDownloader : IHttpHandler {
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public void ProcessRequest (HttpContext context) {
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try
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{
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System.IO.FileInfo file = new System.IO.FileInfo(Convert.ToString(context.Server.MapPath(context.Server.UrlDecode("~" + context.Request.QueryString[0]))));
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string sOutputFilename = null;
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if (context.Request.QueryString.Count > 1)
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sOutputFilename = context.Server.UrlDecode(context.Request.QueryString[1]);
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if (string.IsNullOrEmpty(sOutputFilename))
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sOutputFilename = file.Name;
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if (!file.Exists)
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return;
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context.Response.Clear();
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context.Response.ContentType = "application/octet-stream";
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if (context.Request.ServerVariables.Get("HTTP_USER_AGENT").Contains("MSIE"))
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context.Response.AppendHeader("Content-Disposition", "attachment; filename=\"" + context.Server.UrlEncode(sOutputFilename) + "\"");
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else
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context.Response.AppendHeader("Content-Disposition", "attachment; filename=\"" + sOutputFilename + "\"");
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context.Response.AppendHeader("Content-Length", file.Length.ToString());
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context.Response.TransmitFile(file.FullName);
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context.Response.Flush();
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context.ApplicationInstance.CompleteRequest();
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}
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catch(Exception){}
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}
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public bool IsReusable {
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get {
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return false;
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}
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}
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public static string GetIP4Address()
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{
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string IP4Address = String.Empty;
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foreach (IPAddress IPA in Dns.GetHostAddresses(HttpContext.Current.Request.UserHostAddress))
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{
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if (IPA.AddressFamily.ToString() == "InterNetwork")
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{
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IP4Address = IPA.ToString();
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break;
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}
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}
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if (IP4Address != String.Empty)
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{
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return IP4Address;
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}
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foreach (IPAddress IPA in Dns.GetHostAddresses(Dns.GetHostName()))
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{
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if (IPA.AddressFamily.ToString() == "InterNetwork")
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{
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IP4Address = IPA.ToString();
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break;
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}
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}
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return IP4Address;
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}
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} |