//
// System.Web.HttpVaryByParams.cs
//
// Author:
// Chris Toshok (toshok@novell.com)
//
//
// Copyright (C) 2005-2009 Novell, Inc (http://www.novell.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.Collections;
using System.Security.Permissions;
using System.Text;
namespace System.Web{
// CAS - no InheritanceDemand here as the class is sealed
[AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
public sealed class HttpCacheVaryByParams
{
bool ignore_parms;
Hashtable parms;
#if NET_4_0
public
#else
internal
#endif
HttpCacheVaryByParams ()
{
/* the parameter names are meant to be case insensitive */
parms = new Hashtable (StringComparer.InvariantCultureIgnoreCase);
}
internal string[] GetParamNames ()
{
string[] names;
names = new string [parms.Count];
parms.Keys.CopyTo (names, 0);
return names;
}
internal string GetResponseHeaderValue ()
{
StringBuilder builder = new StringBuilder ();
foreach (string parm in parms.Keys) {
builder.Append (parm);
builder.Append ("; ");
}
if (builder.Length == 0)
return null;
return builder.ToString();
}
public bool IgnoreParams {
get {
return ignore_parms;
}
set {
ignore_parms = value;
}
}
public bool this [ string param ] {
get {
if (param == null)
throw new ArgumentNullException ();
return parms.Contains (param);
}
set {
if (param == null)
throw new ArgumentNullException ();
ignore_parms = false;
if (value)
if (!parms.Contains (param))
parms.Add (param, true);
else
parms.Remove (param);
}
}
}
}
|