public RouteMethodRecord(RouteAttribute routeProperties, string prefix, MethodInfo routeMethod)
{
string routePath = routeProperties.RoutePath.Trim().TrimEnd('/');
var matches = regexRoutePathParser.Matches(routePath);
{
this.RouteProperties = routeProperties;
this.RouteMethod = routeMethod;
}
{
List <string> regexFragments = new List <string>();
int index = 0;
foreach (Match match in matches)
{
regexFragments.Add(Regex.Escape(routePath.Substring(index, match.Index - index)));
regexFragments.Add(string.Format(@"(?<{0}>[^/]*?)", match.Groups["name"].Value));
index = match.Index + match.Length;
}
regexFragments.Add(Regex.Escape(routePath.Substring(index, routePath.Length - index)));
string regex = regexFragments.Aggregate((a, b) => a + b);
this.RoutePathRegex = new Regex(string.Format("^{0}{1}$", Regex.Escape(prefix), regex));
}
{
this.Parameters = matches
.Cast <Match>()
.Select(m => m.Groups["name"].Value)
.ToArray();
}
{
var parameterInfoNames = this.RouteMethod
.GetParameters()
.Select(p => p.Name)
.ToArray();
var parameterIndices = Enumerable
.Range(0, parameterInfoNames.Length)
.ToDictionary(i => parameterInfoNames[i], i => i);
this.ParameterIndexMapping = this.Parameters
.Select(p => parameterIndices[p])
.ToArray();
}
}
public static void BuildRouter(string baseRoute, MethodInfo method, ref RouteInfo routeInfo, RouteAttribute attribute = null)
{
routeInfo = new RouteInfo();
string restPart = attribute != null && !string.IsNullOrWhiteSpace(attribute.Route)
? attribute.Route
: method.Name;
string absoluteUrl = Regex.Replace($"/{baseRoute}/{restPart}", "(/)+", "/");
string[] segmentUrl = absoluteUrl.Split('/', StringSplitOptions.RemoveEmptyEntries);
MatchCollection matches = Regex.Matches(absoluteUrl,
@"(?<={)(?<name>[a-zA-Z0-9_-]+)(?=})",
RegexOptions.IgnoreCase | RegexOptions.Multiline);
if (matches.Count > 0)
{
absoluteUrl = $"{Regex.Replace(absoluteUrl, @"{(?<name>[a-zA-Z0-9_-]+)}", @"([a-zA-Z0-9_-]+)")}";
//var data = Regex.Matches("/api/param1/param2", absoluteUrl);
var param = method.GetParameters()
.Select(x => x.Name)
.ToArray();
routeInfo.ParamSegments = segmentUrl.Select(x => Array.FindIndex(param, p => $"{{{p}}}" == x)).ToArray();
}
routeInfo.AbsoluteUrl = $"^{absoluteUrl}$";
routeInfo.Action = method.DeclaringType;
routeInfo.Method = method;
ParameterInfo[] parameters = method.GetParameters();
routeInfo.ParamNames = parameters.Select(x => x.Name.ToLower()).ToArray();
routeInfo.BodyParametter = parameters.FirstOrDefault(x => x.ParameterType != typeof(string))?.ParameterType.FullName;
routeInfo.HttpVers = attribute != null
? attribute.HttpVerb
: HttpMethod.GET;
}
private static bool ExecuteAbsoluteMethod(List <Type> types, HttpListenerRequest request, HttpListenerResponse response)
{
string[] segmentQuery = request.Url.Query.TrimStart('?')
.Split('&', StringSplitOptions.RemoveEmptyEntries);
string url = request.Url.AbsolutePath.TrimEnd('/');
MethodInfo[] methods = types.SelectMany(x => x.GetMethods()
.Where(y => y.DeclaringType.Name == x.Name))
.ToArray();
RouteAttribute[] absoluteRoutes = methods
.SelectMany(x => x.GetCustomAttributes <RouteAttribute>())
.ToList()
.Where(y => y.Route.StartsWith('/'))
.ToArray();
if (absoluteRoutes.Length > 0)
{
RouteAttribute route = absoluteRoutes.FirstOrDefault(x => x.Route.TrimEnd('/') == url);
if (route != null)
{
MethodInfo method = methods.ToList().Find(x => x.GetCustomAttribute <RouteAttribute>()?.Route == route.Route);
string[] queries = request.Url.Query.TrimStart('?')
.Split('&', StringSplitOptions.RemoveEmptyEntries);
object[] parametters = new object[method.GetParameters().Length];
parametters = ObtainParametters(method, queries, parametters);
object actionValue = ExecuteMethod(method, parametters);
OutputResponse(actionValue, request, response);
return(true);
}
else
{
foreach (RouteAttribute routeAttr in absoluteRoutes)
{
string attrUrl = routeAttr.Route;
string regexAbsolute = $"{Regex.Replace(attrUrl, @"{(?<name>[a-zA-Z0-9_-]+)}", @"([a-zA-Z0-9_-]+)")}";
Match match = Regex.Match(url, regexAbsolute, RegexOptions.IgnoreCase);
if (match.Success)
{
MethodInfo method = methods.ToList().Find(x => x.GetCustomAttribute <RouteAttribute>()?.Route == routeAttr.Route);
string[] parameterInfos = method.GetParameters().Select(x => x.Name).ToArray();
object[] parametters = new object[parameterInfos.Length];
string[] split = routeAttr.Route.Split('/', StringSplitOptions.RemoveEmptyEntries);
int i = 1;
foreach (var param in split)
{
int index = Array.FindIndex(parameterInfos, x => $"{{{x}}}" == param);
if (index >= 0)
{
parametters[index] = request.Url.Segments[i];
}
i++;
}
string[] queries = request.Url.Query.TrimStart('?')
.Split('&', StringSplitOptions.RemoveEmptyEntries);
parametters = ObtainParametters(method, queries, parametters);
object actionValue = ExecuteMethod(method, parametters);
OutputResponse(actionValue, request, response);
return(true);
}
}
}
}
return(false);
}
