//
// System.Web.Configuration.HttpHandlerAction
//
// Authors:
// Chris Toshok (toshok@ximian.com)
// Daniel Nauck (dna(at)mono-project(dot)de)
//
// (C) 2005 Novell, Inc (http://www.novell.com)
// (C) 2008 Daniel Nauck
//
//
// 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.
//
#if NET_2_0
using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Configuration;
using System.Reflection;
using System.Text.RegularExpressions;
using System.Threading;
using System.Web;
using System.Web.Util;
namespace System.Web.Configuration{
public sealed class HttpHandlerAction: ConfigurationElement
{
static ConfigurationPropertyCollection _properties;
static ConfigurationProperty pathProp;
static ConfigurationProperty typeProp;
static ConfigurationProperty validateProp;
static ConfigurationProperty verbProp;
static HttpHandlerAction ()
{
pathProp = new ConfigurationProperty ("path", typeof (string), null,
TypeDescriptor.GetConverter (typeof (string)),
PropertyHelper.NonEmptyStringValidator,
ConfigurationPropertyOptions.IsRequired | ConfigurationPropertyOptions.IsKey);
typeProp = new ConfigurationProperty ("type", typeof (string), null,
TypeDescriptor.GetConverter (typeof (string)),
PropertyHelper.NonEmptyStringValidator,
ConfigurationPropertyOptions.IsRequired);
validateProp = new ConfigurationProperty ("validate", typeof (bool), true);
verbProp = new ConfigurationProperty ("verb", typeof (string), null,
TypeDescriptor.GetConverter (typeof (string)),
PropertyHelper.NonEmptyStringValidator,
ConfigurationPropertyOptions.IsRequired | ConfigurationPropertyOptions.IsKey);
_properties = new ConfigurationPropertyCollection ();
_properties.Add (pathProp);
_properties.Add (typeProp);
_properties.Add (validateProp);
_properties.Add (verbProp);
}
internal HttpHandlerAction ()
{ }
public HttpHandlerAction (string path, string type, string verb)
: this (path, type, verb, true)
{ }
public HttpHandlerAction (string path, string type, string verb, bool validate)
{
Path = path;
Type = type;
Verb = verb;
Validate = validate;
}
[ConfigurationProperty ("path", Options = ConfigurationPropertyOptions.IsRequired | ConfigurationPropertyOptions.IsKey)]
// LAMESPEC: MS lists no validator here but provides one in Properties.
public string Path {
get { return (string) base[pathProp]; }
set { base[pathProp] = value; }
}
[ConfigurationProperty ("type", Options = ConfigurationPropertyOptions.IsRequired)]
// LAMESPEC: MS lists no validator here but provides one in Properties.
public string Type {
get { return (string) base[typeProp]; }
set { base[typeProp] = value; }
}
[ConfigurationProperty ("validate", DefaultValue = true)]
public bool Validate {
get { return (bool) base[validateProp]; }
set { base[validateProp] = value; }
}
[ConfigurationProperty ("verb", Options = ConfigurationPropertyOptions.IsRequired | ConfigurationPropertyOptions.IsKey)]
// LAMESPEC: MS lists no validator here but provides one in Properties.
public string Verb {
get { return (string) base[verbProp]; }
set { base[verbProp] = value; }
}
protected override ConfigurationPropertyCollection Properties {
get { return _properties; }
}
#region CompatabilityCode
object instance;
Type type;
string cached_verb = null;
string[] cached_verbs;
string[] SplitVerbs ()
{
if (Verb == "*")
cached_verbs = null;
else
cached_verbs = Verb.Split (',');
return cached_verbs;
}
internal string[] Verbs {
get {
if (cached_verb != Verb) {
cached_verbs = SplitVerbs();
cached_verb = Verb;
}
return cached_verbs;
}
}
//
// Loads the a type by name and verifies that it implements
// IHttpHandler or IHttpHandlerFactory
//
internal static Type LoadType (string type_name)
{
Type t = null;
t = HttpApplication.LoadType (type_name, false);
if (t == null)
throw new HttpException (String.Format ("Failed to load httpHandler type `{0}'", type_name));
if (typeof (IHttpHandler).IsAssignableFrom (t) ||
typeof (IHttpHandlerFactory).IsAssignableFrom (t))
return t;
throw new HttpException (String.Format ("Type {0} does not implement IHttpHandler or IHttpHandlerFactory", type_name));
}
internal bool PathMatches (string pathToMatch)
{
if (String.IsNullOrEmpty (pathToMatch))
return false;
bool result = false;
string[] handlerPaths = Path.Split (',');
int slash = pathToMatch.LastIndexOf ('/');
string origPathToMatch = pathToMatch;
string noLeadingSlashPathToMatch = null;
if (slash != -1)
pathToMatch = pathToMatch.Substring (slash);
SearchPattern sp = null;
foreach (string handlerPath in handlerPaths)
{
if (handlerPath.Length == 0)
continue;
if (handlerPath == "*") {
result = true;
break;
}
string matchExact = null;
string endsWith = null;
if (handlerPath.Length > 0)
{
if (handlerPath [0] == '*' && (handlerPath.IndexOf ('*', 1) == -1))
endsWith = handlerPath.Substring (1);
if (handlerPath.IndexOf ('*') == -1)
if (handlerPath [0] != '/')
{
HttpContext ctx = HttpContext.Current;
HttpRequest req = ctx != null ? ctx.Request : null;
string vpath = req != null ? req.BaseVirtualDir : HttpRuntime.AppDomainAppVirtualPath;
if (vpath == "/")
vpath = String.Empty;
matchExact = String.Concat (vpath, "/", handlerPath);
}
}
if (matchExact != null)
{
result = matchExact.Length == origPathToMatch.Length && StrUtils.EndsWith (origPathToMatch, matchExact, true);
if (result == true)
break;
else
continue;
}
else if (endsWith != null)
{
result = StrUtils.EndsWith (pathToMatch, endsWith, true);
if (result == true)
break;
else
continue;
}
string pattern;
if (handlerPath [0] == '/')
pattern = handlerPath.Substring (1);
else
pattern = handlerPath;
if (sp == null)
sp = new SearchPattern (pattern, true);
else
sp.SetPattern (pattern, true);
if (noLeadingSlashPathToMatch == null) {
if (origPathToMatch [0] == '/')
noLeadingSlashPathToMatch = origPathToMatch.Substring (1);
else
noLeadingSlashPathToMatch = origPathToMatch;
}
if (pattern.IndexOf ('/') >= 0)
noLeadingSlashPathToMatch = AdjustPath (pattern, noLeadingSlashPathToMatch);
if (sp.IsMatch (noLeadingSlashPathToMatch)) {
result = true;
break;
}
}
return result;
}
static string AdjustPath (string pattern, string path)
{
int nslashes = 0;
foreach (char c in pattern)
if (c == '/')
nslashes++;
int i;
for (i = path.Length - 1; i >= 0; i--) {
if (path [i] == '/') {
nslashes--;
if (nslashes == -1)
break;
}
}
if (nslashes >= 0 || i == 0)
return path;
return path.Substring (i + 1);
}
// Loads the handler, possibly delay-loaded.
internal object GetHandlerInstance ()
{
IHttpHandler ihh = instance as IHttpHandler;
if (instance == null || (ihh != null && !ihh.IsReusable)){
if (type == null)
type = LoadType (Type);
instance = Activator.CreateInstance (type,
BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance,
null, null, null);
}
return instance;
}
#endregion
}
}
#endif
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