public virtual IHttpRouteData GetRouteData(
string virtualPathRoot,
HttpRequestMessage request
)
{
if (virtualPathRoot == null)
{
throw Error.ArgumentNull("virtualPathRoot");
}
if (request == null)
{
throw Error.ArgumentNull("request");
}
RoutingContext context = GetOrCreateRoutingContext(virtualPathRoot, request);
if (!context.IsValid)
{
return(null);
}
HttpRouteValueDictionary values = ParsedRoute.Match(context, _defaults);
if (values == null)
{
// If we got back a null value set, that means the URI did not match
return(null);
}
// Validate the values
if (!ProcessConstraints(request, values, HttpRouteDirection.UriResolution))
{
return(null);
}
return(new HttpRouteData(this, values));
}
public HttpRouteValueDictionary Match(RoutingContext context, HttpRouteValueDictionary defaultValues)
{
List<string> requestPathSegments = context.PathSegments;
if (defaultValues == null)
{
defaultValues = new HttpRouteValueDictionary();
}
HttpRouteValueDictionary matchedValues = new HttpRouteValueDictionary();
// This flag gets set once all the data in the URI has been parsed through, but
// the route we're trying to match against still has more parts. At this point
// we'll only continue matching separator characters and parameters that have
// default values.
bool ranOutOfStuffToParse = false;
// This value gets set once we start processing a catchall parameter (if there is one
// at all). Once we set this value we consume all remaining parts of the URI into its
// parameter value.
bool usedCatchAllParameter = false;
for (int i = 0; i < PathSegments.Count; i++)
{
PathSegment pathSegment = PathSegments[i];
if (requestPathSegments.Count <= i)
{
ranOutOfStuffToParse = true;
}
string requestPathSegment = ranOutOfStuffToParse ? null : requestPathSegments[i];
if (pathSegment is PathSeparatorSegment)
{
if (ranOutOfStuffToParse)
{
// If we're trying to match a separator in the route but there's no more content, that's OK
}
else
{
if (!String.Equals(requestPathSegment, "/", StringComparison.Ordinal))
{
return null;
}
}
}
else
{
PathContentSegment contentPathSegment = pathSegment as PathContentSegment;
if (contentPathSegment != null)
{
if (contentPathSegment.IsCatchAll)
{
Contract.Assert(i == (PathSegments.Count - 1), "If we're processing a catch-all, we should be on the last route segment.");
MatchCatchAll(contentPathSegment, requestPathSegments.Skip(i), defaultValues, matchedValues);
usedCatchAllParameter = true;
}
else
{
if (!MatchContentPathSegment(contentPathSegment, requestPathSegment, defaultValues, matchedValues))
{
return null;
}
}
}
else
{
Contract.Assert(false, "Invalid path segment type");
}
}
}
if (!usedCatchAllParameter)
{
if (PathSegments.Count < requestPathSegments.Count)
{
// If we've already gone through all the parts defined in the route but the URI
// still contains more content, check that the remaining content is all separators.
for (int i = PathSegments.Count; i < requestPathSegments.Count; i++)
{
if (!RouteParser.IsSeparator(requestPathSegments[i]))
{
return null;
}
}
}
}
// Copy all remaining default values to the route data
if (defaultValues != null)
{
foreach (var defaultValue in defaultValues)
{
if (!matchedValues.ContainsKey(defaultValue.Key))
{
matchedValues.Add(defaultValue.Key, defaultValue.Value);
}
}
}
return matchedValues;
}
public HttpRouteValueDictionary Match(RoutingContext context, HttpRouteValueDictionary defaultValues)
{
List <string> requestPathSegments = context.PathSegments;
if (defaultValues == null)
{
defaultValues = new HttpRouteValueDictionary();
}
HttpRouteValueDictionary matchedValues = new HttpRouteValueDictionary();
// This flag gets set once all the data in the URI has been parsed through, but
// the route we're trying to match against still has more parts. At this point
// we'll only continue matching separator characters and parameters that have
// default values.
bool ranOutOfStuffToParse = false;
// This value gets set once we start processing a catchall parameter (if there is one
// at all). Once we set this value we consume all remaining parts of the URI into its
// parameter value.
bool usedCatchAllParameter = false;
for (int i = 0; i < PathSegments.Count; i++)
{
PathSegment pathSegment = PathSegments[i];
if (requestPathSegments.Count <= i)
{
ranOutOfStuffToParse = true;
}
string requestPathSegment = ranOutOfStuffToParse ? null : requestPathSegments[i];
if (pathSegment is PathSeparatorSegment)
{
if (ranOutOfStuffToParse)
{
// If we're trying to match a separator in the route but there's no more content, that's OK
}
else
{
if (!String.Equals(requestPathSegment, "/", StringComparison.Ordinal))
{
return(null);
}
}
}
else
{
PathContentSegment contentPathSegment = pathSegment as PathContentSegment;
if (contentPathSegment != null)
{
if (contentPathSegment.IsCatchAll)
{
Contract.Assert(i == (PathSegments.Count - 1), "If we're processing a catch-all, we should be on the last route segment.");
MatchCatchAll(contentPathSegment, requestPathSegments.Skip(i), defaultValues, matchedValues);
usedCatchAllParameter = true;
}
else
{
if (!MatchContentPathSegment(contentPathSegment, requestPathSegment, defaultValues, matchedValues))
{
return(null);
}
}
}
else
{
Contract.Assert(false, "Invalid path segment type");
}
}
}
if (!usedCatchAllParameter)
{
if (PathSegments.Count < requestPathSegments.Count)
{
// If we've already gone through all the parts defined in the route but the URI
// still contains more content, check that the remaining content is all separators.
for (int i = PathSegments.Count; i < requestPathSegments.Count; i++)
{
if (!RouteParser.IsSeparator(requestPathSegments[i]))
{
return(null);
}
}
}
}
// Copy all remaining default values to the route data
if (defaultValues != null)
{
foreach (var defaultValue in defaultValues)
{
if (!matchedValues.ContainsKey(defaultValue.Key))
{
matchedValues.Add(defaultValue.Key, defaultValue.Value);
}
}
}
return(matchedValues);
}