public HttpRequestModel(HttpOperation owner, HttpProviderAttribute httpClient, HttpPathAttribute httpPath, HttpMethodAttribute httpVerb, HttpTimeoutAttribute httpTimeout, HttpHeaderAttribute[] httpClassHeaders)
{
_owner = owner;
_owner.Log("HttpRequestModel Initializing", LogSeverity.VERBOSE);
_httpClient = httpClient;
_httpPath = httpPath;
_httpVerb = httpVerb;
_httpTimeout = httpTimeout;
_uriTemplates = new Hashtable();
_formFields = new Hashtable();
_binaryFormFields = new Dictionary <string, HttpBinaryFormField>();
_httpHeaders = new Dictionary <string, string>();
_queryStrings = new List <DictionaryEntry>();
_stringBody = null;
_binaryBody = null;
_owner.Log("Processing class level maps.", LogSeverity.VERBOSE);
foreach (HttpHeaderAttribute httpHeaderAttribute in httpClassHeaders)
{
if (httpHeaderAttribute.MapOnRequest())
{
_owner.Log("Processing map '" + httpHeaderAttribute.GetType().FullName + "'.", LogSeverity.VERBOSE);
httpHeaderAttribute.Initialize();
string text = httpHeaderAttribute.OnRequestResolveName(_owner, null);
object value = httpHeaderAttribute.OnRequestResolveValue(text, _owner, null);
value = httpHeaderAttribute.OnRequestApplyConverters(value, _owner, null);
if (!string.IsNullOrEmpty(text))
{
AddHttpHeader(text, (value != null) ? value.ToString() : "");
}
}
}
}
private MethodInfo GetRunMethod()
{
var httpMethodAttribute = HttpMethodAttribute.Get(_type.GetInterfaces().Single(HttpMethodAttribute.IsAppliedTo));
var method = _type.GetMethod(httpMethodAttribute.Method);
return(method);
}
/// <summary>
/// Gets the Http method and the template from a <see cref="HttpMethodAttribute"/>.
/// </summary>
/// <param name="attr">The <see cref="HttpMethodAttribute"/> instance.</param>
/// <param name="httpMethod">A variable to receive the <see cref="HttpMethod"/>.</param>
/// <returns>The attribute template.</returns>
private static string GetMethodAndTemplateFromAttribute(
this HttpMethodAttribute attr,
out HttpMethod httpMethod)
{
httpMethod = null;
if (attr is HttpGetAttribute)
{
httpMethod = HttpMethod.Get;
}
else if (attr is HttpPostAttribute)
{
httpMethod = HttpMethod.Post;
}
else if (attr is HttpPutAttribute)
{
httpMethod = HttpMethod.Put;
}
else if (attr is HttpPatchAttribute)
{
httpMethod = new HttpMethod("Patch");
}
else if (attr is HttpDeleteAttribute)
{
httpMethod = HttpMethod.Delete;
}
return(((HttpMethodAttribute)attr).Template);
}
private static MethodInfo GetMethodInfo(IInvocation invocation, HttpMethodAttribute requestAttribute)
{
Type type = null;
switch (requestAttribute)
{
case GetAttribute _:
type = invocation.Method.ReturnType.GetGenericArguments()[0];
break;
case PostAttribute _:
case PutAttribute _:
case DeleteAttribute _:
var bodyAttribute = ParamAttribute <BodyAttribute>(invocation);
if (bodyAttribute != (null, null))
{
type = bodyAttribute.Value.GetType();
}
break;
default:
throw new ArgumentOutOfRangeException(nameof(requestAttribute));
}
var methodName = GetMethodName(requestAttribute);
var method = type == null?GetMethodInfo(methodName) : GetGenericMethodInfo(methodName, type);
return(method);
}
private MethodInfo GetRunMethod(string httpMethod)
{
return(_handlerType.GetInterfaces()
.Where(HttpMethodAttribute.IsAppliedTo)
.Select(t => HttpMethodAttribute.GetMethod(t, httpMethod))
.Single(a => a != null));
}
public static bool MatchRouteTemplate(this HttpMethodAttribute httpMethodAttribute, HttpContext context, IRouteMatcher routeMatcher)
{
if (string.IsNullOrEmpty(httpMethodAttribute.Template))
{
return(false);
}
var match = routeMatcher.Match(httpMethodAttribute.Template, context.Request.Path);
if (match == null)
{
// path doesn't match route template
return(false);
}
// write route data
var routeData = context.GetRouteData();
foreach (var item in match)
{
routeData.Values.Add(item.Key, item.Value);
}
return(true);
}
private static HttpMethodAttribute CreateHttpMethodAttribute(HttpMethodAttribute httpMethodAttribute, String controllerTemplate)
{
if (httpMethodAttribute is HttpDeleteAttribute)
{
return(new HttpDeleteAttribute(controllerTemplate));
}
if (httpMethodAttribute is HttpGetAttribute)
{
return(new HttpGetAttribute(controllerTemplate));
}
if (httpMethodAttribute is HttpHeadAttribute)
{
return(new HttpHeadAttribute(controllerTemplate));
}
if (httpMethodAttribute is HttpOptionsAttribute)
{
return(new HttpOptionsAttribute(controllerTemplate));
}
if (httpMethodAttribute is HttpPatchAttribute)
{
return(new HttpPatchAttribute(controllerTemplate));
}
if (httpMethodAttribute is HttpPostAttribute)
{
return(new HttpPostAttribute(controllerTemplate));
}
if (httpMethodAttribute is HttpPutAttribute)
{
return(new HttpPutAttribute(controllerTemplate));
}
throw new InvalidOperationException("Unknown HttpMethodAttribute " + httpMethodAttribute.GetType().FullName);
}
private static string GetMethodName(HttpMethodAttribute requestAttribute)
{
string methodName;
switch (requestAttribute)
{
case GetAttribute _:
methodName = nameof(HttpExtensions.GetAsync);
break;
case PostAttribute _:
methodName = nameof(HttpExtensions.PostAsync);
break;
case PutAttribute _:
methodName = nameof(HttpExtensions.PutAsync);
break;
case DeleteAttribute _:
methodName = nameof(HttpExtensions.DeleteAsync);
break;
default:
throw new ArgumentOutOfRangeException(nameof(requestAttribute));
}
return(methodName);
}
private static MethodInfo FindMethod(Type controllerType, string actionName, HttpRequestMethod requestMethod)
{
MethodInfo[] methods = controllerType.GetMethods(BindingFlags.Public | BindingFlags.Instance)
.Where(method => method.Name == actionName)
.ToArray();
foreach (MethodInfo method in methods)
{
HttpMethodAttribute httpMethodAttribute = method.GetCustomAttribute <HttpMethodAttribute>();
if (httpMethodAttribute == null)
{
if (requestMethod == HttpRequestMethod.GET)
{
return(method);
}
}
else if (httpMethodAttribute.Accepts(requestMethod))
{
return(method);
}
}
return(null);
}
private static void AssertAttributeHasName(HttpMethodAttribute hypermediaAttribute)
{
if (string.IsNullOrEmpty(hypermediaAttribute.Name))
{
throw new RouteRegisterException($"{hypermediaAttribute.GetType().Name} must have a name.");
}
}
protected virtual async Task InvokeGetAsync(MethodInfo method, HttpMethodAttribute httpMethod, object[] args)
{
string uri = BuildGetRequestUri(method, httpMethod, args);
HttpResponseMessage response = await _httpClient.GetAsync(uri);
ProcessResponseAsync(response, method);
}
protected virtual async Task <T> InvokeDeleteAsync <T>(MethodInfo method, HttpMethodAttribute httpMethod, object[] args)
{
string uri = BuildDeleteRequestUri(method, httpMethod, args);
HttpResponseMessage response = await _httpClient.DeleteAsync(uri);
return(await ProcessResponseAsync <T>(response, method));
}
private static RoutingTable BuildRoutingTable(string httpMethod)
{
var handlerTypes = ExportedTypeHelper.FromCurrentAppDomain(IsHttpMethodHandler)
.Where(i => HttpMethodAttribute.Get(i).HttpMethod.Equals(httpMethod, StringComparison.OrdinalIgnoreCase))
.ToArray();
return(new RoutingTableBuilder(handlerTypes).BuildRoutingTable());
}
protected virtual async Task <T> InvokePutAsync <T>(MethodInfo method, HttpMethodAttribute httpMethod, object[] args)
{
string uri = GetPutRequestUri(method, httpMethod, args);
var content = GetPutRequestContent(method, args);
HttpResponseMessage response = await _httpClient.PutAsync(uri, content);
return(await ProcessResponseAsync <T>(response, method));
}
private bool ValidateMethod(string requestMethod)
{
HttpMethodAttribute attr = (HttpMethodAttribute)_info.GetCustomAttributes(
typeof(HttpMethodAttribute), true).FirstOrDefault();
string method = attr?.HttpMethods.FirstOrDefault() ?? "POST";
return(string.Compare(method, requestMethod, true) == 0);
}
// InvokeGet builds out the URI with route parameters and querystring,
// then calls GetAsync and processes the HttpResponseMessage
#region InvokeGet, InvokeGetAsync, InvokeGetAsync<T>
protected virtual object InvokeGet(MethodInfo method, HttpMethodAttribute httpMethod, object[] args)
{
string uri = BuildGetRequestUri(method, httpMethod, args);
HttpResponseMessage response = _httpClient.GetAsync(uri)
.GetAwaiter().GetResult(); //synchronous, blocking call.
return(ProcessResponse(response, method));
}
// InvokeDelete builds out the URI with route parameters (does not permit querystrings),
// then calls DeleteAsync and processes the HttpResponseMessage
#region InvokeDelete, InvokeDeleteAsync, InvokeDeleteAsync<T>
protected virtual object InvokeDelete(MethodInfo method, HttpMethodAttribute httpMethod, object[] args)
{
string uri = BuildDeleteRequestUri(method, httpMethod, args);
HttpResponseMessage response = _httpClient.DeleteAsync(uri)
.GetAwaiter().GetResult();
return(ProcessResponse(response, method));
}
internal static RoutingTable BuildRoutingTable(string httpMethod)
{
var types = ExportedTypeHelper.FromCurrentAppDomain(IsHttpMethodHandler).ToList();
var handlerTypes = types
.Where(i => HttpMethodAttribute.Matches(i, httpMethod))
.ToArray();
return(new RoutingTableBuilder(handlerTypes).BuildRoutingTable());
}
private static bool IsExtensionAttribute(HttpMethodAttribute a)
{
var attributeType = a.GetType();
return(attributeType == typeof(HttpGetHypermediaObject) ||
attributeType == typeof(HttpPostHypermediaAction) ||
attributeType == typeof(HttpDeleteHypermediaAction) ||
attributeType == typeof(HttpPatchHypermediaAction) ||
attributeType == typeof(HttpGetHypermediaActionParameterInfo));
}
private void ExecuteHttpRequest(IInvocation invocation, HttpMethodAttribute requestAttribute)
{
var routePath = GetRoutePath(invocation, Path, requestAttribute.Path);
var method = GetMethodInfo(invocation, requestAttribute);
var result = InvokeHttpRequest(invocation, routePath, method);
invocation.ReturnValue = result;
}
public static HttpMethodAttribute GetHttpMethodAttribute(this ActionDescriptor action)
{
HttpMethodAttribute attr =
action
.EndpointMetadata
.OfType <HttpMethodAttribute>()
.First();
return(attr);
}
// InvokePut builds out the URI with route parameters (no querystring),
// then generates the HttpContent payload (if there is one).
// then calls PutAsync and processes the HttpResponseMessage.
// It is identical to InvokePost in every way except for calling PutAsync.
#region InvokePut, InvokePutAsync, InvokePutAsync<T>
protected virtual object InvokePut(MethodInfo method, HttpMethodAttribute httpMethod, object[] args)
{
string uri = GetPutRequestUri(method, httpMethod, args);
var content = GetPutRequestContent(method, args);
HttpResponseMessage response = _httpClient.PutAsync(uri, content)
.GetAwaiter().GetResult();
return(ProcessResponse(response, method));
}
private string GetPutRequestUri(MethodInfo method, HttpMethodAttribute httpMethod, object[] args)
{
StringBuilder sb = new StringBuilder();
sb.Append(method.Name);
BindRouteParameters(sb, method, httpMethod, args);
return(sb.ToString());
}
public RouteActionMatch(Type controller, MethodInfo action, HttpMethodAttribute httpMethod)
{
Assert.NotNull(controller, nameof(controller));
Assert.NotNull(action, nameof(action));
Assert.NotNull(httpMethod, nameof(httpMethod));
Controller = controller;
Action = action;
HttpMethod = httpMethod;
}
/// <summary>
/// Assert that the HTTP method template matches the specified 'template'.
/// </summary>
/// <param name="attribute"></param>
/// <param name="template"></param>
public static void HasTemplate(this HttpMethodAttribute attribute, string template = null)
{
if (template == null)
{
Assert.Null(attribute.Template);
}
else
{
Assert.Equal(template, attribute.Template);
}
}
private const int trimLength = 10; // "Controller".Length;
public HttpActionInformation(Type controller, MethodInfo method, HttpMethodAttribute action, RouteAttribute route = null)
{
var template = (route?.Template.TrimEnd('/') + '/' + action.Template).Replace("[controller]", controller.Name.Substring(0, controller.Name.Length - trimLength));
this.HttpMappings = new ReadOnlyDictionary <string, MethodInfo>(action.HttpMethods.ToDictionary(h => h, h => method));
this.Name = action.Name;
this.Order = action.Order;
this.Segments = template.Split('/', StringSplitOptions.RemoveEmptyEntries).Select(s => new Segment(s)).ToArray();
this.Template = template;
this.AnyRepeating = this.Segments.Any(s => s.IsRepeating);
}
public void SettingMethod(PathItem pathItem, HttpMethodAttribute method, Operation operation)
{
if (method == null)
{
if (pathItem.Get == null)
{
pathItem.Get = operation;
}
return;
}
switch (method.HttpMethods.First().ToLower())
{
case "get":
if (pathItem.Get == null)
{
pathItem.Get = operation;
}
break;
case "put":
if (pathItem.Put == null)
{
pathItem.Put = operation;
}
break;
case "post":
if (pathItem.Post == null)
{
pathItem.Post = operation;
}
break;
case "delete":
if (pathItem.Delete == null)
{
pathItem.Delete = operation;
}
break;
case "patch":
case "merge":
if (pathItem.Patch == null)
{
pathItem.Patch = operation;
}
break;
default:
throw new InvalidOperationException($"HttpMethod {method.Name} is not supported.");
}
}
public static string GetMethod(this HttpMethodAttribute attribute)
{
if (attribute is HttpPatchAttribute)
{
return("GetPatchMethod()");
}
else
{
string text = attribute.HttpMethods.First();
return($"HttpMethod.{text.Substring(0, 1)}{text.Substring(1).ToLower()}");
}
}
public static OperationType ToOperationType(this HttpMethodAttribute httpMethod)
{
return(httpMethod.HttpMethod switch
{
"POST" => OperationType.Post,
"GET" => OperationType.Get,
"PUT" => OperationType.Put,
"HEAD" => OperationType.Head,
"OPTIONS" => OperationType.Options,
"PATCH" => OperationType.Patch,
"DELETE" => OperationType.Delete,
_ => throw new ArgumentOutOfRangeException(nameof(httpMethod))
});
/// <summary>
/// Assert the specified 'endpoint' has the specified method 'template'.
/// </summary>
/// <param name="endpoint"></param>
/// <param name="template"></param>
public static void HasMethod(this MethodInfo endpoint, HttpMethod method, string template)
{
HttpMethodAttribute attribute = method switch
{
HttpMethod.Post => endpoint.GetCustomAttribute <HttpPostAttribute>(),
HttpMethod.Put => endpoint.GetCustomAttribute <HttpPutAttribute>(),
HttpMethod.Delete => endpoint.GetCustomAttribute <HttpDeleteAttribute>(),
HttpMethod.Get => endpoint.GetCustomAttribute <HttpGetAttribute>(),
_ => endpoint.GetCustomAttribute <HttpGetAttribute>()
};
Assert.NotNull(attribute);
attribute.HasTemplate(template);
}
