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//
// System.Net.FileWebResponse
//
// Author:
// Lawrence Pit (loz@cable.a2000.nl)
//
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.IO;
using System.Runtime.Serialization;
namespace System.Net
{
[Serializable]
public class FileWebResponse : WebResponse, ISerializable, IDisposable
{
private Uri responseUri;
private FileStream fileStream;
private long contentLength;
private WebHeaderCollection webHeaders;
private bool disposed;
Exception exception;
// Constructors
internal FileWebResponse (Uri responseUri, FileStream fileStream)
{
try {
this.responseUri = responseUri;
this.fileStream = fileStream;
this.contentLength = fileStream.Length;
this.webHeaders = new WebHeaderCollection ();
this.webHeaders.Add ("Content-Length", Convert.ToString (contentLength));
this.webHeaders.Add ("Content-Type", "application/octet-stream");
} catch (Exception e) {
throw new WebException (e.Message, e);
}
}
internal FileWebResponse (Uri responseUri, WebException exception)
{
this.responseUri = responseUri;
this.exception = exception;
}
[Obsolete ("Serialization is obsoleted for this type", false)]
protected FileWebResponse (SerializationInfo serializationInfo, StreamingContext streamingContext)
{
SerializationInfo info = serializationInfo;
responseUri = (Uri) info.GetValue ("responseUri", typeof (Uri));
contentLength = info.GetInt64 ("contentLength");
webHeaders = (WebHeaderCollection) info.GetValue ("webHeaders", typeof (WebHeaderCollection));
}
// Properties
internal bool HasError {
get { return exception != null; }
}
internal Exception Error {
get { return exception; }
}
public override long ContentLength {
get {
CheckDisposed ();
return this.contentLength;
}
}
public override string ContentType {
get {
CheckDisposed ();
return "application/octet-stream";
}
}
public override WebHeaderCollection Headers {
get {
CheckDisposed ();
return this.webHeaders;
}
}
public override Uri ResponseUri {
get {
CheckDisposed ();
return this.responseUri;
}
}
// Methods
void ISerializable.GetObjectData (SerializationInfo serializationInfo, StreamingContext streamingContext)
{
GetObjectData (serializationInfo, streamingContext);
}
protected override void GetObjectData (SerializationInfo serializationInfo, StreamingContext streamingContext)
{
SerializationInfo info = serializationInfo;
info.AddValue ("responseUri", responseUri, typeof (Uri));
info.AddValue ("contentLength", contentLength);
info.AddValue ("webHeaders", webHeaders, typeof (WebHeaderCollection));
}
public override Stream GetResponseStream()
{
CheckDisposed ();
return this.fileStream;
}
// Cleaning up stuff
~FileWebResponse ()
{
Dispose (false);
}
public override void Close()
{
((IDisposable) this).Dispose ();
}
void IDisposable.Dispose()
{
Dispose (true);
// see spec, suppress finalization of this object.
GC.SuppressFinalize (this);
}
#if NET_4_0
protected override
#endif
void Dispose (bool disposing)
{
if (this.disposed)
return;
this.disposed = true;
if (disposing) {
// release managed resources
this.responseUri = null;
this.webHeaders = null;
}
// release unmanaged resources
FileStream stream = fileStream;
fileStream = null;
if (stream != null)
stream.Close (); // also closes webRequest
#if NET_4_0
base.Dispose (disposing);
#endif
}
private void CheckDisposed ()
{
if (disposed)
throw new ObjectDisposedException (GetType ().FullName);
}
}
}
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