/// <summary>
///
/// </summary>
/// <param name="urlNodes"></param>
/// <param name="urlParts"></param>
/// <param name="methodInfo"></param>
/// <param name="url">The uriginal url - this is needed to get the real parameter before splitting. Due to the split we lost the seperator char</param>
/// <param name="posInUrl">The current pos in the url - this is needed to get the real parameter before splitting. Due to the split we lost the seperator char</param>
private void AddNode(Dictionary <String, UrlNode> urlNodes, IEnumerable <String> urlParts, MethodInfo methodInfo, String url, Int32 posInUrl, Boolean?needsExplicitAuthentication)
{
var val = urlParts.FirstOrDefault();
if (val == null)
{
throw new ArgumentNullException("urlParts.First");
}
#region SpeedUp by removing all between {...}
if (val.StartsWith("{") && val.EndsWith("}")) // something like /{....} or .{....} or ?{.....} will be changed to /{} .{} ?{}
{
val = "{}";
}
#endregion
UrlNode curUrlNode = null;
#region Use an existing node or add a new one
if (urlNodes.ContainsKey(val))
{
curUrlNode = urlNodes[val];
}
else
{
curUrlNode = new UrlNode();
curUrlNode.NeedsExplicitAuthentication = needsExplicitAuthentication;
urlNodes.Add(val, curUrlNode);
}
#endregion
#region If there are some more parts proceed or set the methodInfo for the last part
if (urlParts.CountIsGreater(1))
{
// there are still some more parts of the URL
AddNode(curUrlNode.ChildNodes, urlParts.Skip(1), methodInfo, url, posInUrl, needsExplicitAuthentication);
}
else
{
// this was the last one - take the methodInfo
curUrlNode.Callback = methodInfo;
}
#endregion
}
/// <summary>
/// This will check
/// </summary>
/// <param name="urlNodes"></param>
/// <param name="urlParts">the splittet</param>
/// <param name="parameters">The parameters, parsed from the url</param>
/// <param name="url">The uriginal url - this is needed to get the real parameter before splitting. Due to the split we lost the seperator char</param>
/// <param name="posInUrl">The current pos in the url - this is needed to get the real parameter before splitting. Due to the split we lost the seperator char</param>
/// <returns></returns>
private Tuple <UrlNode, List <Object> > GetCallback(Dictionary <String, UrlNode> urlNodes, IEnumerable <String> urlParts, List <Object> parameters, String url, Int32 posInUrl)
{
var val = urlParts.FirstOrDefault();
if (val == null)
{
throw new ArgumentNullException("urlParts.First");
}
val = val.ToLower();
UrlNode curUrlNode = null;
if (urlNodes.ContainsKey(val))
{
#region The current url node has this part of the URL
curUrlNode = urlNodes[val];
posInUrl += (val.Length == 0) ? 1 : val.Length + 1; // for just a / (which is now a empty string because of the split)
#endregion
}
else if (urlNodes.ContainsKey("{}"))
{
#region If there is a wildcard in this node, use this
curUrlNode = urlNodes["{}"];
if (curUrlNode.ChildNodes.IsNullOrEmpty())
{
// this is the last parameter - so add the rest of the url as well
parameters.Add(url.Substring(posInUrl));
posInUrl = url.Length;
return(new Tuple <UrlNode, List <object> >(curUrlNode, parameters));
}
else
{
// just add this part and proceed
if (url.Length > posInUrl)
{
//parameters.Add(url.Substring(posInUrl, (val.Length == 0) ? 1 : val.Length));
parameters.Add(url.Substring(posInUrl, val.Length));
posInUrl += val.Length + 1; // add 1 for the missing seperator char
}
else
{
parameters.Add("");
}
}
#endregion
}
else
{
#region The node does not have this part and a wildcard neither
return(null);
#endregion
}
if (urlParts.CountIsGreater(1) && !curUrlNode.ChildNodes.IsNullOrEmpty())
{
#region There are more url parts AND childs in the current node
// we have some more childs defined
Tuple <UrlNode, List <object> > retval = null;
var newParams = new List <Object>();
do
{
#region As long as we can go deeper lets do it
retval = GetCallback(curUrlNode.ChildNodes, urlParts.Skip(1), newParams, url, posInUrl);
if (retval == null)
{
#region There is no hit for the current nodes childs and the next url parts
if (curUrlNode.ChildNodes.ContainsKey("{}"))
{
#region But the childs contains a wildcard we could use
curUrlNode = curUrlNode.ChildNodes["{}"];
if (curUrlNode.ChildNodes.IsNullOrEmpty())
{
#region The wildcard child has no more childs to verify, so lets take it
parameters.Add(url.Substring(posInUrl));
retval = new Tuple <UrlNode, List <object> >(curUrlNode, newParams);//parameters);
#endregion
}
else
{
#region The wildcard child have mor childs which needs to be verified
urlParts = urlParts.Skip(1);
if (GetCallback(curUrlNode.ChildNodes, urlParts.Skip(1), newParams, url, posInUrl) == null)
{
#region The next parts do not leed into a successfull mapping, lets use this wildcard
parameters.Add(url.Substring(posInUrl));
retval = new Tuple <UrlNode, List <object> >(curUrlNode, parameters);
parameters = null;
#endregion
}
else
{
#region Take this wildcard as parameter and proceed
val = urlParts.First();
newParams.Add(url.Substring(posInUrl, (val.Length == 0) ? 1 : val.Length));
posInUrl += (val.Length == 0) ? 1 : val.Length + 1;
#endregion
}
#endregion
}
#endregion
}
else
{
#region This part is still not valid, return null to proceed with the predecessor level
return(null);
#endregion
}
#endregion
}
#endregion
} while (retval == null);
#region Are there any parameters to add to the result?
if (!parameters.IsNullOrEmpty())
{
#region We need to swap the parameters due to recursive call
parameters.AddRange(retval.Item2);
retval = new Tuple <UrlNode, List <object> >(retval.Item1, parameters);
#endregion
}
#endregion
return(retval);
#endregion
}
else if (curUrlNode.Callback == null && !curUrlNode.ChildNodes.IsNullOrEmpty() && curUrlNode.ChildNodes.ContainsKey("{}"))
{
#region The current callback is null AND this is the last part of the url
parameters.Add(url.Substring(posInUrl));
curUrlNode = curUrlNode.ChildNodes["{}"];
#endregion
}
else if (urlParts.CountIsGreater(1) && curUrlNode.ChildNodes.IsNullOrEmpty())
{
#region No childs but still some url parts
return(null);
#endregion
}
else if (curUrlNode.Callback == null && !curUrlNode.ChildNodes.IsNullOrEmpty() && !curUrlNode.ChildNodes.ContainsKey("{}"))
{
#region There are childs but they have no placeholders ({}), so we have no valid definition
return(null);
#endregion
}
return(new Tuple <UrlNode, List <object> >(curUrlNode, parameters));
}
/// <summary>
///
/// </summary>
/// <param name="urlNodes"></param>
/// <param name="urlParts"></param>
/// <param name="methodInfo"></param>
/// <param name="url">The uriginal url - this is needed to get the real parameter before splitting. Due to the split we lost the seperator char</param>
/// <param name="posInUrl">The current pos in the url - this is needed to get the real parameter before splitting. Due to the split we lost the seperator char</param>
private void AddNode(Dictionary<String, UrlNode> urlNodes, IEnumerable<String> urlParts, MethodInfo methodInfo, String url, Int32 posInUrl, Boolean? needsExplicitAuthentication)
{
var val = urlParts.FirstOrDefault();
if (val == null)
{
throw new ArgumentNullException("urlParts.First");
}
#region SpeedUp by removing all between {...}
if (val.StartsWith("{") && val.EndsWith("}")) // something like /{....} or .{....} or ?{.....} will be changed to /{} .{} ?{}
{
val = "{}";
}
#endregion
UrlNode curUrlNode = null;
#region Use an existing node or add a new one
if (urlNodes.ContainsKey(val))
{
curUrlNode = urlNodes[val];
}
else
{
curUrlNode = new UrlNode();
curUrlNode.NeedsExplicitAuthentication = needsExplicitAuthentication;
urlNodes.Add(val, curUrlNode);
}
#endregion
#region If there are some more parts proceed or set the methodInfo for the last part
if (urlParts.CountIsGreater(1))
{
// there are still some more parts of the URL
AddNode(curUrlNode.ChildNodes, urlParts.Skip(1), methodInfo, url, posInUrl, needsExplicitAuthentication);
}
else
{
// this was the last one - take the methodInfo
curUrlNode.Callback = methodInfo;
}
#endregion
}
