Webhook (#591)

Webhook

src/WireMock.Net/Http/HttpClientBuilder.cs

@@ -7,7 +7,7 @@ namespace WireMock.Http
 {
     internal static class HttpClientBuilder
     {
-        public static HttpClient Build(IProxyAndRecordSettings settings)
+        public static HttpClient Build(IHttpClientSettings settings)
         {
 #if NETSTANDARD || NETCOREAPP3_1 || NET5_0
             var handler = new HttpClientHandler

src/WireMock.Net/Http/WebhookSender.cs

@@ -0,0 +1,85 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net.Http;
+using System.Threading.Tasks;
+using JetBrains.Annotations;
+using WireMock.Models;
+using WireMock.Settings;
+using WireMock.Transformers;
+using WireMock.Transformers.Handlebars;
+using WireMock.Transformers.Scriban;
+using WireMock.Types;
+using WireMock.Util;
+using WireMock.Validation;
+
+namespace WireMock.Http
+{
+    internal class WebhookSender
+    {
+        private const string ClientIp = "::1";
+
+        private readonly IWireMockServerSettings _settings;
+
+        public WebhookSender(IWireMockServerSettings settings)
+        {
+            _settings = settings ?? throw new ArgumentNullException(nameof(settings));
+        }
+
+        public Task<HttpResponseMessage> SendAsync([NotNull] HttpClient client, [NotNull] IWebhookRequest request, [NotNull] RequestMessage originalRequestMessage, [NotNull] ResponseMessage originalResponseMessage)
+        {
+            Check.NotNull(client, nameof(client));
+            Check.NotNull(request, nameof(request));
+            Check.NotNull(originalRequestMessage, nameof(originalRequestMessage));
+            Check.NotNull(originalResponseMessage, nameof(originalResponseMessage));
+
+            IBodyData bodyData;
+            IDictionary<string, WireMockList<string>> headers;
+            if (request.UseTransformer == true)
+            {
+                ITransformer responseMessageTransformer;
+                switch (request.TransformerType)
+                {
+                    case TransformerType.Handlebars:
+                        var factoryHandlebars = new HandlebarsContextFactory(_settings.FileSystemHandler, _settings.HandlebarsRegistrationCallback);
+                        responseMessageTransformer = new Transformer(factoryHandlebars);
+                        break;
+
+                    case TransformerType.Scriban:
+                    case TransformerType.ScribanDotLiquid:
+                        var factoryDotLiquid = new ScribanContextFactory(_settings.FileSystemHandler, request.TransformerType);
+                        responseMessageTransformer = new Transformer(factoryDotLiquid);
+                        break;
+
+                    default:
+                        throw new NotImplementedException($"TransformerType '{request.TransformerType}' is not supported.");
+                }
+
+                (bodyData, headers) = responseMessageTransformer.Transform(originalRequestMessage, originalResponseMessage, request.BodyData, request.Headers);
+            }
+            else
+            {
+                bodyData = request.BodyData;
+                headers = request.Headers;
+            }
+
+            // Create RequestMessage
+            var requestMessage = new RequestMessage(
+                new UrlDetails(request.Url),
+                request.Method,
+                ClientIp,
+                bodyData,
+                headers?.ToDictionary(x => x.Key, x => x.Value.ToArray())
+            )
+            {
+                DateTime = DateTime.UtcNow
+            };
+
+            // Create HttpRequestMessage
+            var httpRequestMessage = HttpRequestMessageHelper.Create(requestMessage, request.Url);
+
+            // Call the URL
+            return client.SendAsync(httpRequestMessage);
+        }
+    }
+}