public HttpController(HttpWebRequest request)
{
if (request.PreAuthenticate)
{
this.http = HttpAuthState.Trying;
}
else
{
this.http = HttpAuthState.NoAuth;
}
this.proxy = HttpAuthState.NoAuth;
redirections = 0;
}
/* returns this WebRequest or a new one.
* If nothing can be done, it will return the same 'ol
* request.
* Note: will change substantially soon*/
public WebRequest Recurse(HttpWebRequest request,HttpWebResponse response)
{
HttpStatusCode code=response.StatusCode;
switch(code)
{
case HttpStatusCode.OK:
{
if(http==HttpAuthState.Trying) http=HttpAuthState.OK;
if(proxy==HttpAuthState.Trying) proxy=HttpAuthState.OK;
return request;
}
break; /* never reached */
case HttpStatusCode.ProxyAuthenticationRequired:
{
String challenge=null;
if(proxy==HttpAuthState.Trying || proxy==HttpAuthState.Failed)
{
proxy=HttpAuthState.Failed;
return request;
}
challenge=response.Headers["Proxy-Authenticate"];
request.ResetRequest(false);
if(request.AddProxyAuthHeaders(challenge))
{
request.ResetRequest(true);
proxy=HttpAuthState.Trying;
return request;
}
else
{
proxy=HttpAuthState.Failed;
return request;
}
}
break;
case HttpStatusCode.Forbidden:
{
String challenge=null;
if(http==HttpAuthState.Trying || http==HttpAuthState.Failed)
{
http=HttpAuthState.Failed;
return request;
}
challenge=response.Headers["WWW-Authenticate"];
request.ResetRequest(false);
if(request.AddHttpAuthHeaders(challenge))
{
request.ResetRequest(true);
http=HttpAuthState.Trying;
return request;
}
else
{
http=HttpAuthState.Failed;
return request;
}
}
break;
case HttpStatusCode.Redirect:
case HttpStatusCode.Moved :
case HttpStatusCode.MultipleChoices :
case HttpStatusCode.SeeOther :
case HttpStatusCode.TemporaryRedirect:
/* case HttpStatusCode.Found : // Duplicate */
/* case HttpStatusCode.MovedPermanently : // Duplicate */
{
Uri newUri=response.ResponseUri;
if(request.allowAutoRedirect && newUri!=null &&
redirections<request.MaximumAutomaticRedirections &&
(request.Method=="GET" || request.Method=="HEAD"))
{
/* ok redirect it */
request.ResetRequest(true);
request.SetAddress(newUri);
redirections++;
return request;
}
}
break;
}
return request;
}
public HttpController(HttpWebRequest request)
{
if(request.PreAuthenticate)
{
this.http=HttpAuthState.Trying;
}
else
{
this.http=HttpAuthState.NoAuth;
}
this.proxy=HttpAuthState.NoAuth;
redirections=0;
}
/* returns this WebRequest or a new one.
* If nothing can be done, it will return the same 'ol
* request.
* Note: will change substantially soon*/
public WebRequest Recurse(HttpWebRequest request, HttpWebResponse response)
{
HttpStatusCode code = response.StatusCode;
switch (code)
{
case HttpStatusCode.Continue:
{
// Drop this response so that real one can be read.
request.response = null;
return(request);
}
case HttpStatusCode.OK:
{
if (http == HttpAuthState.Trying)
{
http = HttpAuthState.OK;
}
if (proxy == HttpAuthState.Trying)
{
proxy = HttpAuthState.OK;
}
return(request);
}
break; /* never reached */
case HttpStatusCode.ProxyAuthenticationRequired:
{
String challenge = null;
if (proxy == HttpAuthState.Trying || proxy == HttpAuthState.Failed)
{
proxy = HttpAuthState.Failed;
return(request);
}
challenge = response.Headers["Proxy-Authenticate"];
request.ResetRequest(false);
if (request.AddProxyAuthHeaders(challenge))
{
request.ResetRequest(true);
proxy = HttpAuthState.Trying;
return(request);
}
else
{
proxy = HttpAuthState.Failed;
return(request);
}
}
break;
case HttpStatusCode.Forbidden:
{
String challenge = null;
if (http == HttpAuthState.Trying || http == HttpAuthState.Failed)
{
http = HttpAuthState.Failed;
return(request);
}
challenge = response.Headers["WWW-Authenticate"];
request.ResetRequest(false);
if (request.AddHttpAuthHeaders(challenge))
{
request.ResetRequest(true);
http = HttpAuthState.Trying;
return(request);
}
else
{
http = HttpAuthState.Failed;
return(request);
}
}
break;
case HttpStatusCode.Redirect:
case HttpStatusCode.Moved:
case HttpStatusCode.MultipleChoices:
case HttpStatusCode.SeeOther:
case HttpStatusCode.TemporaryRedirect:
/* case HttpStatusCode.Found : // Duplicate */
/* case HttpStatusCode.MovedPermanently : // Duplicate */
{
Uri newUri = response.ResponseUri;
if (request.allowAutoRedirect && newUri != null &&
redirections < request.MaximumAutomaticRedirections &&
(request.Method == "GET" || request.Method == "HEAD"))
{
/* ok redirect it */
request.ResetRequest(true);
request.SetAddress(newUri);
redirections++;
return(request);
}
}
break;
}
return(request);
}