5 // Atsushi Enomoto <atsushi@ximian.com>
7 // Copyright (C) 2008 Novell Inc. http://novell.com
11 // Permission is hereby granted, free of charge, to any person obtaining
12 // a copy of this software and associated documentation files (the
13 // "Software"), to deal in the Software without restriction, including
14 // without limitation the rights to use, copy, modify, merge, publish,
15 // distribute, sublicense, and/or sell copies of the Software, and to
16 // permit persons to whom the Software is furnished to do so, subject to
17 // the following conditions:
19 // The above copyright notice and this permission notice shall be
20 // included in all copies or substantial portions of the Software.
22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
31 using System.Security.Permissions;
32 using System.Text.RegularExpressions;
35 namespace System.Web.Routing
37 [AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
38 [AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
39 public class Route : RouteBase
43 public RouteValueDictionary Constraints { get; set; }
45 public RouteValueDictionary DataTokens { get; set; }
47 public RouteValueDictionary Defaults { get; set; }
49 public IRouteHandler RouteHandler { get; set; }
52 get { return url != null ? url.Url : String.Empty; }
53 set { url = value != null ? new PatternParser (value) : null; }
56 public Route (string url, IRouteHandler routeHandler)
57 : this (url, null, routeHandler)
61 public Route (string url, RouteValueDictionary defaults, IRouteHandler routeHandler)
62 : this (url, defaults, null, routeHandler)
66 public Route (string url, RouteValueDictionary defaults, RouteValueDictionary constraints, IRouteHandler routeHandler)
67 : this (url, defaults, constraints, null, routeHandler)
71 public Route (string url, RouteValueDictionary defaults, RouteValueDictionary constraints, RouteValueDictionary dataTokens, IRouteHandler routeHandler)
75 Constraints = constraints;
76 DataTokens = dataTokens;
77 RouteHandler = routeHandler;
80 public override RouteData GetRouteData (HttpContextBase httpContext)
82 var path = httpContext.Request.AppRelativeCurrentExecutionFilePath;
83 var pathInfo = httpContext.Request.PathInfo;
85 if (pathInfo != String.Empty)
86 throw new NotImplementedException ();
88 // probably code like this causes ArgumentOutOfRangeException under .NET.
89 // It somehow allows such path that is completely equivalent to the Url. Dunno why.
90 if (Url != path && path.Substring (0, 2) != "~/")
92 path = path.Substring (2);
94 var values = url.Match (path, Defaults);
98 if (Constraints != null)
99 foreach (var p in Constraints)
100 if (!ProcessConstraint (httpContext, p.Value, p.Key, values, RouteDirection.IncomingRequest))
103 var rd = new RouteData (this, RouteHandler);
104 RouteValueDictionary rdValues = rd.Values;
106 foreach (var p in values)
107 rdValues.Add (p.Key, p.Value);
112 public override VirtualPathData GetVirtualPath (RequestContext requestContext, RouteValueDictionary values)
114 if (requestContext == null)
115 throw new ArgumentNullException ("requestContext");
117 return new VirtualPathData (this, String.Empty);
119 // null values is allowed.
120 // if (values == null)
121 // values = requestContext.RouteData.Values;
124 if (!url.BuildUrl (this, requestContext, values, out s))
127 return new VirtualPathData (this, s);
130 internal static bool ProcessConstraintInternal (HttpContextBase httpContext, Route route, object constraint, string parameterName,
131 RouteValueDictionary values, RouteDirection routeDirection, out bool invalidConstraint)
133 invalidConstraint = false;
134 IRouteConstraint irc = constraint as IRouteConstraint;
136 return irc.Match (httpContext, route, parameterName, values, routeDirection);
138 string s = constraint as string;
140 string v = values [parameterName] as string;
141 if (!String.IsNullOrEmpty (v))
142 return Regex.Match (v, s).Success;
146 invalidConstraint = true;
150 protected virtual bool ProcessConstraint (HttpContextBase httpContext, object constraint, string parameterName, RouteValueDictionary values, RouteDirection routeDirection)
152 if (parameterName == null)
153 throw new ArgumentNullException ("parameterName");
155 // .NET "compatibility"
157 throw new NullReferenceException ();
159 bool invalidConstraint;
160 bool ret = ProcessConstraintInternal (httpContext, this, constraint, parameterName, values, routeDirection, out invalidConstraint);
162 if (invalidConstraint)
163 throw new InvalidOperationException (String.Format ("Constraint parameter '{0}' must be either a string or an IRouteConstraint instance", parameterName));