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Viewing changes to src/webservices/.svn/text-base/Download.ashx.cs.svn-base

  • Committer: Jorge O. Castro
  • Date: 2007-12-03 06:56:46 UTC
  • Revision ID: jorge@ubuntu.com-20071203065646-mupcnjcwgm5mnhyt
* Remove a bunch of .svn directories we no longer need.

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src/webservices/.svn/text-base/Download.ashx.cs.svn-base
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/****************************************************************************
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|
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| Copyright (c) 2007 Novell, Inc.
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| All Rights Reserved.
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|
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| This program is free software; you can redistribute it and/or
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| modify it under the terms of version 2 of the GNU General Public License as
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| published by the Free Software Foundation.
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|
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| This program is distributed in the hope that it will be useful,
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| but WITHOUT ANY WARRANTY; without even the implied warranty of
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| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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| GNU General Public License for more details.
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|
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| You should have received a copy of the GNU General Public License
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| along with this program; if not, contact Novell, Inc.
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|
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| To contact Novell about this file by physical or electronic mail,
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| you may find current contact information at www.novell.com 
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|
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| Author: Rob
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|***************************************************************************/
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using System;
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using System.IO;
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using System.Web;
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using System.Net;
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using Simias.Client;
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using Simias.Storage;
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namespace iFolder.WebService
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{
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        /// <summary>
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        /// File Download Handler
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        /// </summary>
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        public class DownloadHandler : FileHandler
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        {
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                const int BUFFERSIZE = (64 * 1024);
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                /// <summary>
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                /// Constructor
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                /// </summary>
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                public DownloadHandler() : base()
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                {
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                }
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                #region IHttpHandler Members
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                /// <summary>
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                /// Process the Request
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                /// </summary>
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                /// <param name="context">The HttpContext object.</param>
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                public override void ProcessRequest(HttpContext context)
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                {
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                        try
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                        {
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                                // initialize
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                                Initialize(context);
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                                // does node exist
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                                if (node == null)
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                                {
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                                        string id = ((entryID != null) && (entryID.Length != 0)) ? entryID : entryPath;
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                                        throw new EntryDoesNotExistException(id);
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                                }
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                                // lock the file
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                                FileStream stream = File.Open(filePath, FileMode.Open, FileAccess.Read, FileShare.Read);
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                                try
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                                {
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                                        // response
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                                        context.Response.Clear();
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                                        context.Response.AddHeader("Content-Disposition",
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                                                String.Format("attachment; filename=\"{0}\"",
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                                                HttpUtility.UrlEncode(filename, System.Text.Encoding.UTF8).Replace("+", "%20")));
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                                        context.Response.AddHeader("Content-Length", stream.Length.ToString());
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                                        context.Response.ContentType = "application/octet-stream";
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                                        context.Response.BufferOutput = false;
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                                        Stream output = context.Response.OutputStream;
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                                        byte[] buffer = new byte[BUFFERSIZE];
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                                        int count = 0;
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                                        while((count = stream.Read(buffer, 0, BUFFERSIZE)) > 0)
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                                        {
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                                                output.Write(buffer, 0, count);
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                                                output.Flush();
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                                        }
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                                        // log
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                                        log.LogAccess("Download", node.GetRelativePath(), node.ID, "Success");
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                                }
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                                catch
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                                {
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                                        // log
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                                        log.LogAccess("Download", node.GetRelativePath(), node.ID, "Failed");
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                                        throw;
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                                }
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                                finally
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                                {
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                                        // release the file
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                                        stream.Close();
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                                }
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                        }
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                        catch(Exception e)
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                        {
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                                context.Response.StatusCode = (int)HttpStatusCode.InternalServerError;
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                                context.Response.StatusDescription = e.GetType().Name;
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                        }
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                }
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                #endregion
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        }
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}