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//
// System.Net.HttpWebResponse
//
// Authors:
// Lawrence Pit (loz@cable.a2000.nl)
// Gonzalo Paniagua Javier (gonzalo@ximian.com)
//
// (c) 2002 Lawrence Pit
// (c) 2003 Ximian, Inc. (http://www.ximian.com)
//
//
// 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.Net.Sockets;
using System.Runtime.Serialization;
using System.Text;
namespace System.Net
{
[Serializable]
public class HttpWebResponse : WebResponse, ISerializable, IDisposable
{
Uri uri;
WebHeaderCollection webHeaders;
CookieCollection cookieCollection;
string method;
Version version;
HttpStatusCode statusCode;
string statusDescription;
long contentLength = -1;
string contentType;
bool disposed = false;
Stream stream;
// Constructors
internal HttpWebResponse (Uri uri, string method, WebConnectionData data, bool cookiesSet)
{
this.uri = uri;
this.method = method;
webHeaders = data.Headers;
version = data.Version;
statusCode = (HttpStatusCode) data.StatusCode;
statusDescription = data.StatusDescription;
stream = data.stream;
if (cookiesSet) {
FillCookies ();
} else if (webHeaders != null) {
webHeaders.RemoveInternal ("Set-Cookie");
webHeaders.RemoveInternal ("Set-Cookie2");
}
}
protected HttpWebResponse (SerializationInfo serializationInfo, StreamingContext streamingContext)
{
SerializationInfo info = serializationInfo;
uri = (Uri) info.GetValue ("uri", typeof (Uri));
contentLength = info.GetInt64 ("contentLength");
contentType = info.GetString ("contentType");
method = info.GetString ("method");
statusDescription = info.GetString ("statusDescription");
cookieCollection = (CookieCollection) info.GetValue ("cookieCollection", typeof (CookieCollection));
version = (Version) info.GetValue ("version", typeof (Version));
statusCode = (HttpStatusCode) info.GetValue ("statusCode", typeof (HttpStatusCode));
}
// Properties
public string CharacterSet {
// Content-Type = "Content-Type" ":" media-type
// media-type = type "/" subtype *( ";" parameter )
// parameter = attribute "=" value
// 3.7.1. default is ISO-8859-1
get {
CheckDisposed ();
string contentType = ContentType;
if (contentType == null)
return "ISO-8859-1";
string val = contentType.ToLower ();
int pos = val.IndexOf ("charset=");
if (pos == -1)
return "ISO-8859-1";
pos += 8;
int pos2 = val.IndexOf (';', pos);
return (pos2 == -1)
? contentType.Substring (pos)
: contentType.Substring (pos, pos2 - pos);
}
}
public string ContentEncoding {
get {
CheckDisposed ();
return webHeaders ["Content-Encoding"];
}
}
public override long ContentLength {
get {
CheckDisposed ();
if (contentLength != -1)
return contentLength;
try {
contentLength = (long) UInt64.Parse (webHeaders ["Content-Length"]);
} catch (Exception) {
return -1;
}
return contentLength;
}
}
public override string ContentType {
get {
CheckDisposed ();
if (contentType == null)
contentType = webHeaders ["Content-Type"];
return contentType;
}
}
public CookieCollection Cookies {
get {
CheckDisposed ();
if (cookieCollection == null)
cookieCollection = new CookieCollection ();
return cookieCollection;
}
set {
CheckDisposed ();
cookieCollection = value;
}
}
public override WebHeaderCollection Headers {
get {
CheckDisposed ();
return webHeaders;
}
}
public DateTime LastModified {
get {
CheckDisposed ();
try {
string dtStr = webHeaders ["Last-Modified"];
return MonoHttpDate.Parse (dtStr);
} catch (Exception) {
return DateTime.Now;
}
}
}
public string Method {
get {
CheckDisposed ();
return method;
}
}
public Version ProtocolVersion {
get {
CheckDisposed ();
return version;
}
}
public override Uri ResponseUri {
get {
CheckDisposed ();
return uri;
}
}
public string Server {
get {
CheckDisposed ();
return webHeaders ["Server"];
}
}
public HttpStatusCode StatusCode {
get {
CheckDisposed ();
return statusCode;
}
}
public string StatusDescription {
get {
CheckDisposed ();
return statusDescription;
}
}
// Methods
public override int GetHashCode ()
{
CheckDisposed ();
return base.GetHashCode ();
}
public string GetResponseHeader (string headerName)
{
CheckDisposed ();
string value = webHeaders [headerName];
return (value != null) ? value : "";
}
public override Stream GetResponseStream ()
{
CheckDisposed ();
if (stream == null)
return Stream.Null;
if (0 == String.Compare (method, "HEAD", true)) // see par 4.3 & 9.4
return Stream.Null;
return stream;
}
void ISerializable.GetObjectData (SerializationInfo serializationInfo,
StreamingContext streamingContext)
{
SerializationInfo info = serializationInfo;
info.AddValue ("uri", uri);
info.AddValue ("contentLength", contentLength);
info.AddValue ("contentType", contentType);
info.AddValue ("method", method);
info.AddValue ("statusDescription", statusDescription);
info.AddValue ("cookieCollection", cookieCollection);
info.AddValue ("version", version);
info.AddValue ("statusCode", statusCode);
}
// Cleaning up stuff
public override void Close ()
{
((IDisposable) this).Dispose ();
}
void IDisposable.Dispose ()
{
Dispose (true);
GC.SuppressFinalize (this);
}
protected virtual void Dispose (bool disposing)
{
if (this.disposed)
return;
this.disposed = true;
if (disposing) {
// release managed resources
uri = null;
webHeaders = null;
cookieCollection = null;
method = null;
version = null;
statusDescription = null;
}
// release unmanaged resources
Stream st = stream;
stream = null;
if (st != null) {
WebConnectionStream wce = st as WebConnectionStream;
if (wce != null) {
try {
wce.ReadAll ();
} catch {}
}
st.Close ();
}
}
private void CheckDisposed ()
{
if (disposed)
throw new ObjectDisposedException (GetType ().FullName);
}
void FillCookies ()
{
if (webHeaders == null)
return;
string val = webHeaders ["Set-Cookie"];
if (val != null && val.Trim () != "")
SetCookie (val);
val = webHeaders ["Set-Cookie2"];
if (val != null && val.Trim () != "")
SetCookie2 (val);
}
static string [] SplitValue (string input)
{
string [] result = new string [2];
int eq = input.IndexOf ('=');
if (eq == -1) {
result [0] = "invalid";
} else {
result [0] = input.Substring (0, eq).Trim ().ToUpper ();
result [1] = input.Substring (eq + 1);
}
return result;
}
[MonoTODO ("Parse dates")]
void SetCookie (string cookie_str)
{
string[] parts = null;
Collections.Queue options = null;
Cookie cookie = null;
options = new Collections.Queue (cookie_str.Split (';'));
parts = SplitValue ((string) options.Dequeue()); // NAME=VALUE must be first
cookie = new Cookie (parts[0], parts[1]);
while (options.Count > 0) {
parts = SplitValue ((string) options.Dequeue());
switch (parts [0]) {
case "COMMENT":
if (cookie.Comment == null)
cookie.Comment = parts[1];
break;
case "COMMENTURL":
if (cookie.CommentUri == null)
cookie.CommentUri = new Uri(parts[1]);
break;
case "DISCARD":
cookie.Discard = true;
break;
case "DOMAIN":
if (cookie.Domain == "")
cookie.Domain = parts[1];
break;
case "MAX-AGE": // RFC Style Set-Cookie2
if (cookie.Expires == DateTime.MinValue)
cookie.Expires = cookie.TimeStamp.AddSeconds (Int32.Parse (parts[1]));
break;
case "EXPIRES": // Netscape Style Set-Cookie
if (cookie.Expires == DateTime.MinValue) {
//FIXME: Does DateTime parse something like: "Sun, 17-Jan-2038 19:14:07 GMT"?
//cookie.Expires = DateTime.ParseExact (parts[1]);
cookie.Expires = DateTime.Now.AddDays (1);
}
break;
case "PATH":
cookie.Path = parts[1];
break;
case "PORT":
if (cookie.Port == null)
cookie.Port = parts[1];
break;
case "SECURE":
cookie.Secure = true;
break;
case "VERSION":
cookie.Version = Int32.Parse (parts[1]);
break;
} // switch
} // while
if (cookieCollection == null)
cookieCollection = new CookieCollection();
if (cookie.Domain == "")
cookie.Domain = uri.Host;
cookieCollection.Add (cookie);
}
void SetCookie2 (string cookies_str)
{
string [] cookies = cookies_str.Split (',');
foreach (string cookie_str in cookies)
SetCookie (cookie_str);
}
}
}
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