398 lines
9.2 KiB
C#
398 lines
9.2 KiB
C#
//
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// System.Net.HttpWebResponse
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//
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// Authors:
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// Lawrence Pit (loz@cable.a2000.nl)
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// Gonzalo Paniagua Javier (gonzalo@ximian.com)
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// Daniel Nauck (dna(at)mono-project(dot)de)
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//
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// (c) 2002 Lawrence Pit
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// (c) 2003 Ximian, Inc. (http://www.ximian.com)
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// (c) 2008 Daniel Nauck
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//
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Collections;
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using System.Globalization;
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using System.IO;
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using System.IO.Compression;
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using System.Net.Sockets;
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using System.Runtime.Serialization;
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using System.Text;
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namespace System.Net
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{
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[Serializable]
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public class HttpWebResponse : WebResponse, ISerializable, IDisposable {
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Uri uri;
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WebHeaderCollection webHeaders;
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CookieCollection cookieCollection;
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string method;
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Version version;
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HttpStatusCode statusCode;
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string statusDescription;
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long contentLength;
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string contentType;
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CookieContainer cookie_container;
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bool disposed;
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Stream stream;
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// Constructors
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internal HttpWebResponse (Uri uri, string method, WebConnectionData data, CookieContainer container)
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{
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this.uri = uri;
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this.method = method;
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webHeaders = data.Headers;
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version = data.Version;
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statusCode = (HttpStatusCode) data.StatusCode;
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statusDescription = data.StatusDescription;
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stream = data.stream;
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contentLength = -1;
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try {
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string cl = webHeaders ["Content-Length"];
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if (String.IsNullOrEmpty (cl) || !Int64.TryParse (cl, out contentLength))
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contentLength = -1;
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} catch (Exception) {
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contentLength = -1;
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}
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if (container != null) {
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this.cookie_container = container;
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FillCookies ();
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}
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string content_encoding = webHeaders ["Content-Encoding"];
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if (content_encoding == "gzip" && (data.request.AutomaticDecompression & DecompressionMethods.GZip) != 0)
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stream = new GZipStream (stream, CompressionMode.Decompress);
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else if (content_encoding == "deflate" && (data.request.AutomaticDecompression & DecompressionMethods.Deflate) != 0)
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stream = new DeflateStream (stream, CompressionMode.Decompress);
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}
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[Obsolete ("Serialization is obsoleted for this type", false)]
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protected HttpWebResponse (SerializationInfo serializationInfo, StreamingContext streamingContext)
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{
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SerializationInfo info = serializationInfo;
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uri = (Uri) info.GetValue ("uri", typeof (Uri));
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contentLength = info.GetInt64 ("contentLength");
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contentType = info.GetString ("contentType");
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method = info.GetString ("method");
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statusDescription = info.GetString ("statusDescription");
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cookieCollection = (CookieCollection) info.GetValue ("cookieCollection", typeof (CookieCollection));
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version = (Version) info.GetValue ("version", typeof (Version));
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statusCode = (HttpStatusCode) info.GetValue ("statusCode", typeof (HttpStatusCode));
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}
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// Properties
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public string CharacterSet {
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// Content-Type = "Content-Type" ":" media-type
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// media-type = type "/" subtype *( ";" parameter )
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// parameter = attribute "=" value
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// 3.7.1. default is ISO-8859-1
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get {
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string contentType = ContentType;
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if (contentType == null)
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return "ISO-8859-1";
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string val = contentType.ToLower ();
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int pos = val.IndexOf ("charset=", StringComparison.Ordinal);
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if (pos == -1)
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return "ISO-8859-1";
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pos += 8;
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int pos2 = val.IndexOf (';', pos);
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return (pos2 == -1)
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? contentType.Substring (pos)
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: contentType.Substring (pos, pos2 - pos);
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}
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}
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public string ContentEncoding {
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get {
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CheckDisposed ();
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string h = webHeaders ["Content-Encoding"];
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return h != null ? h : "";
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}
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}
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public override long ContentLength {
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get {
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return contentLength;
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}
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}
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public override string ContentType {
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get {
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CheckDisposed ();
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if (contentType == null)
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contentType = webHeaders ["Content-Type"];
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return contentType;
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}
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}
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#if NET_4_5
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virtual
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#endif
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public CookieCollection Cookies {
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get {
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CheckDisposed ();
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if (cookieCollection == null)
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cookieCollection = new CookieCollection ();
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return cookieCollection;
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}
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set {
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CheckDisposed ();
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cookieCollection = value;
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}
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}
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public override WebHeaderCollection Headers {
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get {
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return webHeaders;
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}
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}
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static Exception GetMustImplement ()
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{
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return new NotImplementedException ();
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}
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[MonoTODO]
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public override bool IsMutuallyAuthenticated
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{
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get {
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throw GetMustImplement ();
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}
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}
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public DateTime LastModified {
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get {
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CheckDisposed ();
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try {
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string dtStr = webHeaders ["Last-Modified"];
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return MonoHttpDate.Parse (dtStr);
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} catch (Exception) {
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return DateTime.Now;
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}
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}
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}
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#if NET_4_5
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virtual
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#endif
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public string Method {
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get {
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CheckDisposed ();
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return method;
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}
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}
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public Version ProtocolVersion {
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get {
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CheckDisposed ();
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return version;
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}
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}
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public override Uri ResponseUri {
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get {
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CheckDisposed ();
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return uri;
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}
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}
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public string Server {
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get {
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CheckDisposed ();
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return webHeaders ["Server"];
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}
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}
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#if NET_4_5
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virtual
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#endif
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public HttpStatusCode StatusCode {
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get {
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return statusCode;
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}
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}
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#if NET_4_5
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virtual
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#endif
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public string StatusDescription {
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get {
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CheckDisposed ();
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return statusDescription;
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}
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}
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// Methods
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public string GetResponseHeader (string headerName)
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{
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CheckDisposed ();
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string value = webHeaders [headerName];
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return (value != null) ? value : "";
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}
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internal void ReadAll ()
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{
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WebConnectionStream wce = stream as WebConnectionStream;
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if (wce == null)
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return;
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try {
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wce.ReadAll ();
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} catch {}
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}
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public override Stream GetResponseStream ()
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{
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CheckDisposed ();
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if (stream == null)
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return Stream.Null;
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if (string.Equals (method, "HEAD", StringComparison.OrdinalIgnoreCase)) // see par 4.3 & 9.4
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return Stream.Null;
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return stream;
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}
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void ISerializable.GetObjectData (SerializationInfo serializationInfo,
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StreamingContext streamingContext)
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{
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GetObjectData (serializationInfo, streamingContext);
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}
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protected override void GetObjectData (SerializationInfo serializationInfo,
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StreamingContext streamingContext)
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{
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SerializationInfo info = serializationInfo;
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info.AddValue ("uri", uri);
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info.AddValue ("contentLength", contentLength);
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info.AddValue ("contentType", contentType);
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info.AddValue ("method", method);
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info.AddValue ("statusDescription", statusDescription);
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info.AddValue ("cookieCollection", cookieCollection);
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info.AddValue ("version", version);
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info.AddValue ("statusCode", statusCode);
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}
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// Cleaning up stuff
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public override void Close ()
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{
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if (stream != null) {
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Stream st = stream;
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stream = null;
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if (st != null)
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st.Close ();
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}
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}
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void IDisposable.Dispose ()
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{
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Dispose (true);
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}
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#if NET_4_0
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protected override void Dispose (bool disposing)
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{
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this.disposed = true;
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base.Dispose (true);
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}
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#else
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void Dispose (bool disposing)
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{
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this.disposed = true;
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if (disposing)
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Close ();
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}
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#endif
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private void CheckDisposed ()
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{
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if (disposed)
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throw new ObjectDisposedException (GetType ().FullName);
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}
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void FillCookies ()
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{
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if (webHeaders == null)
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return;
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//
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// Don't terminate response reading on bad cookie value
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//
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string value;
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try {
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value = webHeaders.Get ("Set-Cookie");
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if (value != null && SetCookie (value))
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return;
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} catch {
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}
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try {
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value = webHeaders.Get ("Set-Cookie2");
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if (value != null)
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SetCookie (value);
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} catch {
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}
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}
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bool SetCookie (string header)
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{
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if (cookieCollection == null)
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cookieCollection = new CookieCollection ();
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bool at_least_one_set = false;
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var parser = new CookieParser (header);
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foreach (var cookie in parser.Parse ()) {
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if (cookie.Domain == "") {
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cookie.Domain = uri.Host;
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cookie.HasDomain = false;
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}
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if (cookie.HasDomain &&
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!CookieContainer.CheckSameOrigin (uri, cookie.Domain))
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continue;
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cookieCollection.Add (cookie);
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if (cookie_container != null) {
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cookie_container.Add (uri, cookie);
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at_least_one_set = true;
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}
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}
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return at_least_one_set;
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}
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}
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}
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