HttpWebClientProtocol.cs :  » 2.6.4-mono-.net-core » System.Web » System » Web » Services » Protocols » C# / CSharp Open Source

// 
// System.Web.Services.Protocols.HttpWebClientProtocol.cs
//
// Author:
//   Tim Coleman (tim@timcoleman.com)
//
// Copyright (C) Tim Coleman, 2002
//

//
// 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.ComponentModel;
using System.Net;
using System.Security.Cryptography.X509Certificates;
using System.Threading;
using System.Web.Services;
using System.Collections;

namespace System.Web.Services.Protocols{
#if NET_2_0
  [System.Runtime.InteropServices.ComVisible (true)]
#endif
  public abstract class HttpWebClientProtocol : WebClientProtocol {

    #region Fields

    bool allowAutoRedirect, enableDecompression;
    X509CertificateCollection clientCertificates;
    CookieContainer cookieContainer;
    IWebProxy proxy;
    string userAgent;
    
#if NET_1_1
    bool _unsafeAuthenticated;
#endif
    #endregion

    #region Constructors

    protected HttpWebClientProtocol () 
    {
      allowAutoRedirect = false;
      clientCertificates = null;
      cookieContainer = null;
      proxy = null; // FIXME
      userAgent = String.Format ("Mono Web Services Client Protocol {0}", Environment.Version);
    }
    
    #endregion // Constructors

    #region Properties

    [DefaultValue (false)]
    [WebServicesDescription ("Enable automatic handling of server redirects.")]
    public bool AllowAutoRedirect {
      get { return allowAutoRedirect; }
      set { allowAutoRedirect = value; }
    }

    [Browsable (false)]
    [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
    [WebServicesDescription ("The client certificates that will be sent to the server, if the server requests them.")]
    public X509CertificateCollection ClientCertificates {
      get {
        if (clientCertificates == null)
          clientCertificates = new X509CertificateCollection ();
        return clientCertificates;
      }
    }

    [DefaultValue (null)]
    [WebServicesDescription ("A container for all cookies received from servers in the current session.")]
    public CookieContainer CookieContainer {
      get { return cookieContainer; }
      set { cookieContainer = value; }
    }

#if NET_2_0
    [DefaultValue (false)]
    public bool EnableDecompression {
      get { return enableDecompression; }
      set { enableDecompression = value; }
    }
#endif

    [Browsable (false)]
    [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
    public IWebProxy Proxy {
      get { return proxy; }
      set { proxy = value; }
    }

    [WebServicesDescription ("Sets the user agent http header for the request.")]
#if NET_2_0
    [Browsable (false)]
    [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
#endif
    public string UserAgent {
      get { return userAgent; }
      set { userAgent = value; }
    }
    
#if NET_1_1
#if NET_2_0
    [Browsable (false)]
    [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
#endif
    public bool UnsafeAuthenticatedConnectionSharing
    {
      get { return _unsafeAuthenticated; }
      set { _unsafeAuthenticated = value; }
    }
#endif

    #endregion // Properties

    #region Methods

    internal virtual void CheckForCookies (HttpWebResponse response)
    {
      CookieCollection cookies = response.Cookies;
      if (cookieContainer == null || cookies.Count == 0)
        return;

      CookieCollection coll = cookieContainer.GetCookies (uri);
      foreach (Cookie c in cookies) {
        bool add = true;
        foreach (Cookie prev in coll) {
          if (c.Equals (prev)) {
            add = false;
            break;
          }
        }
        if (add)
          cookieContainer.Add (c);
      }
    }
    
    protected override WebRequest GetWebRequest (Uri uri)
    {
      WebRequest req = base.GetWebRequest (uri);
      HttpWebRequest request = req as HttpWebRequest;
      if (request == null)
        return req;
#if NET_2_0
      if (enableDecompression)
        request.AutomaticDecompression = DecompressionMethods.GZip;
#endif

      request.AllowAutoRedirect = allowAutoRedirect;
      if (clientCertificates != null)
        request.ClientCertificates.AddRange (clientCertificates);

      request.CookieContainer = cookieContainer;
      if (proxy != null)
        request.Proxy = proxy;

      request.UserAgent = userAgent;

#if NET_1_1
    //  request.UnsafeAuthenticatedConnectionSharing = _unsafeAuthenticated;
#endif

      return request;
    }

    protected override WebResponse GetWebResponse (WebRequest request)
    {
      WebResponse response = base.GetWebResponse (request);
      HttpWebResponse wr = response as HttpWebResponse;
      if (wr != null)
        CheckForCookies (wr);
        
      return response;
    }

    protected override WebResponse GetWebResponse (WebRequest request, IAsyncResult result)
    {
      WebResponse response = base.GetWebResponse (request, result);
      HttpWebResponse wr = response as HttpWebResponse;
      if (wr != null)
        CheckForCookies (wr);
        
      return response;
    }
    
#if NET_2_0
    Hashtable mappings = new Hashtable ();
    
    internal void RegisterMapping (object userState, WebClientAsyncResult result)
    {
      if (userState == null)
        userState = typeof (string);
      
      mappings [userState] = result;
    }

    internal void UnregisterMapping (object userState)
    {
      if (userState == null)
        userState = typeof (string);
      
      mappings.Remove (userState);
    }
    
    protected void CancelAsync (object userState)
    {
      WebClientAsyncResult result = (WebClientAsyncResult) mappings [userState];

      if (result == null)
        return;
      
      mappings.Remove (userState);
      result.Abort ();
    }

    [MonoTODO]
    public static bool GenerateXmlMappings (Type type, ArrayList mapping)
    {
      throw new NotImplementedException ();
    }

    [MonoTODO]
    public static Hashtable GenerateXmlMappings (Type[] types, ArrayList mapping)
    {
      throw new NotImplementedException ();
    }
#else
    internal void UnregisterMapping (object userState)
    {
    }

    internal void RegisterMapping (object userState, WebClientAsyncResult result)
    {
    }
#endif

    #endregion // Methods
  }
  
#if NET_2_0
  internal class InvokeAsyncInfo
  {
    public SynchronizationContext Context;
    public object UserState;
    public SendOrPostCallback Callback;
    
    public InvokeAsyncInfo (SendOrPostCallback callback, object userState)
    {
      Callback = callback;
      UserState = userState;
      Context = SynchronizationContext.Current;
    }
  }
#endif
}