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//
// System.Web.Caching.CachedVaryBy
//
// Author(s):
// Jackson Harper (jackson@ximian.com)
//
// (C) 2003 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;
using System.Globalization;
using System.Text;
using System.Collections;
namespace System.Web.Caching {
internal class CachedVaryBy {
private string[] prms;
private string[] headers;
private string custom;
private string key;
private ArrayList item_list;
private bool wildCardParams;
internal CachedVaryBy (HttpCachePolicy policy, string key)
{
prms = policy.VaryByParams.GetParamNames ();
headers = policy.VaryByHeaders.GetHeaderNames (policy.OmitVaryStar);
custom = policy.GetVaryByCustom ();
this.key = key;
item_list = new ArrayList ();
wildCardParams = policy.VaryByParams ["*"];
}
internal ArrayList ItemList {
get { return item_list; }
}
internal string Key {
get { return key; }
}
internal string CreateKey (string file_path, HttpContext context)
{
StringBuilder builder = new StringBuilder ();
HttpApplication app = context.ApplicationInstance;
HttpRequest request = context.Request;
builder.Append ("CachedRawResponse\n");
builder.Append (file_path);
builder.Append ('\n');
builder.Append ("METHOD:" + request.HttpMethod);
builder.Append ('\n');
if (wildCardParams) {
foreach (string p in request.QueryString) {
// FIXME: QueryString might contain a null key if a page gets called like this: page.aspx?arg (w/out the "=")
if (p == null) continue;
builder.Append ("VPQ:");
builder.Append (p.ToLower (CultureInfo.InvariantCulture));
builder.Append ('=');
builder.Append (request.QueryString [p]);
builder.Append ('\n');
}
foreach (string p in request.Form) {
// FIXME: can this be null, too?
if (p == null) continue;
builder.Append ("VPF:");
builder.Append (p.ToLower (CultureInfo.InvariantCulture));
builder.Append ('=');
builder.Append (request.Form [p]);
builder.Append ('\n');
}
} else if (prms != null) {
for (int i=0; i<prms.Length; i++) {
if (request.QueryString [prms [i]] != null) {
builder.Append ("VPQ:");
builder.Append (prms [i].ToLower (CultureInfo.InvariantCulture));
builder.Append ('=');
builder.Append (request.QueryString [prms [i]]);
builder.Append ('\n');
}
if (request.Form [prms [i]] != null) {
builder.Append ("VPF:");
builder.Append (prms [i].ToLower (CultureInfo.InvariantCulture));
builder.Append ('=');
builder.Append (request.Form [prms [i]]);
builder.Append ('\n');
}
}
}
if (headers != null) {
for (int i=0; i<headers.Length; i++) {
builder.Append ("VH:");
builder.Append (headers [i].ToLower (CultureInfo.InvariantCulture));
builder.Append ('=');
builder.Append (request.Headers [headers [i]]);
builder.Append ('\n');
}
}
if (custom != null) {
string s = app.GetVaryByCustomString (context, custom);
builder.Append ("VC:");
builder.Append (custom);
builder.Append ('=');
builder.Append (s != null ? s : "__null__");
builder.Append ('\n');
}
return builder.ToString ();
}
}
}
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