Transmission.Options.UseSink

src/SparkPost.Tests/DataMapperTests.cs

@@ -209,6 +209,85 @@ public void It_should_set_the_recipients()
                     ["email"].ShouldEqual(recipient2.Address.Email);
             }
 
+            [TestCaseSource("SinkifyCases")]
+            public void It_should_sinkify_addresses(string email, string headerTo,
+                    string expectedEmail, string expectedHeaderTo)
+            {
+                var address = new Address() { Email = email, HeaderTo = headerTo };
+                transmission.Recipients.Add(new Recipient() { Address = address });
+                transmission.Options.Sink = true;
+
+                var result = mapper.ToDictionary(transmission)["recipients"] as IEnumerable<IDictionary<string, object>>;
+
+                result.Count().ShouldEqual(1);
+                var resultAddress = result.Single()["address"].CastAs<IDictionary<string, object>>();
+
+                foreach (var fieldToTest in new Dictionary<string, string>() {
+                        { "email", expectedEmail }, { "header_to", expectedHeaderTo} })
+                {
+                    if (fieldToTest.Value == null)
+                        resultAddress.ContainsKey(fieldToTest.Key).ShouldBeFalse();
+                    else
+                        resultAddress[fieldToTest.Key].ShouldEqual(fieldToTest.Value);
+                }
+            }
+
+            static object[] SinkifyCases =
+            {
+                new string[]
+                {
+                    "[email protected]",
+                    "[email protected]",
+                    "[email protected]",
+                    "[email protected]"
+                },
+                new string[]
+                {
+                    "[email protected]",
+                    null,
+                    "[email protected]",
+                    null
+                },
+                new string[]
+                {
+                    "[email protected]",
+                    "[email protected]",
+                    "[email protected]",
+                    "[email protected]"
+                },
+                new string[]
+                {
+                    "[email protected]",
+                    "[email protected]",
+                    "[email protected]",
+                    "[email protected]"
+                },
+                new string[]
+                {
+                    null, null, null, null
+                },
+            };
+
+            [TestCase(true, true, true)]
+            [TestCase(true, false, true)]
+            [TestCase(false, true, true)]
+            [TestCase(false, false, false)]
+            public void Client_sink_setting_should_override_transmission(bool clientUseSink, 
+                    bool transmissionUseSink, bool shouldSinkify)
+            {
+                var address = new Address() { Email = Guid.NewGuid().ToString() };
+                transmission.Recipients.Add(new Recipient() { Address = address });
+                transmission.Options.Sink = transmissionUseSink;
+
+                var result = mapper.ToDictionary(transmission, clientUseSink)["recipients"] as IEnumerable<IDictionary<string, object>>;
+                var resultAddress = result.Single()["address"].CastAs<IDictionary<string, object>>();
+
+                resultAddress["email"]
+                    .CastAs<string>()
+                    .EndsWith(".sink.sparkpostmail.com")
+                    .ShouldEqual(shouldSinkify);
+            }
+
             [Test]
             public void It_should_set_the_recipients_to_a_list_id_if_a_list_id_is_provided()
             {

src/SparkPost/Client.cs

@@ -82,6 +82,7 @@ public Settings()
             }
 
             public SendingModes SendingMode { get; set; }
+            public bool SinkAllTransmissions { get; set; }
 
             public HttpClient CreateANewHttpClient()
             {

src/SparkPost/DataMapper.cs

@@ -16,6 +16,7 @@ public interface IDataMapper
         IDictionary<string, object> ToDictionary(SendingDomainStatus sendingDomainStatus);
         IDictionary<string, object> ToDictionary(VerifySendingDomain verifySendingDomain);
         IDictionary<string, object> ToDictionary(Transmission transmission);
+        IDictionary<string, object> ToDictionary(Transmission transmission, bool useSink);
         IDictionary<string, object> ToDictionary(Recipient recipient);
         IDictionary<string, object> ToDictionary(Address address);
         IDictionary<string, object> ToDictionary(Options options);
@@ -81,6 +82,11 @@ public virtual IDictionary<string, object> ToDictionary(VerifySendingDomain veri
         }
 
         public virtual IDictionary<string, object> ToDictionary(Transmission transmission)
+        {
+            return ToDictionary(transmission, false);
+        }
+
+        public virtual IDictionary<string, object> ToDictionary(Transmission transmission, bool sink)
         {
             var data = new Dictionary<string, object>
             {
@@ -95,6 +101,8 @@ public virtual IDictionary<string, object> ToDictionary(Transmission transmissio
 
             var result = WithCommonConventions(transmission, data);
 
+            if (sink || transmission.Options.Sink)
+                SinkHandling.AddSinkDomainToAddresses(result);
             CcHandling.Process(transmission, result);
 
             return result;
@@ -129,7 +137,12 @@ public virtual IDictionary<string, object> ToDictionary(Address address)
 
         public virtual IDictionary<string, object> ToDictionary(Options options)
         {
-            return AnyValuesWereSetOn(options) ? WithCommonConventions(options) : null;
+            var result = WithCommonConventions(options, new Dictionary<string, object>()
+            {
+                ["sink"] = null,
+            });
+
+            return result.Any() ? result : null;
         }
 
         public virtual IDictionary<string, object> ToDictionary(Content content)

src/SparkPost/Options.cs

@@ -12,5 +12,6 @@ public class Options
         public bool? SkipSuppression { get; set; }
         public bool? InlineCss { get; set; }
         public string IpPool { get; set; }
+        public bool Sink { get; set; }
     }
 }

src/SparkPost/SinkHandling.cs

@@ -0,0 +1,39 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace SparkPost
+{
+    internal static class SinkHandling
+    {
+        private static readonly string SINK_DOMAIN = ".sink.sparkpostmail.com";
+
+        internal static void AddSinkDomainToAddresses(IDictionary<string, object> result)
+        {
+            if (result.ContainsKey("recipients"))
+            {
+                var recipients = (result["recipients"] as IEnumerable<IDictionary<string, object>>).ToList();
+                foreach (var address in recipients
+                        .Where(r => r.ContainsKey("address"))
+                        .Select(r => r["address"])
+                        .Cast<IDictionary<string, object>>())
+                {
+                    AddSinkDomainToAddress(address, "email");
+                    AddSinkDomainToAddress(address, "header_to");                                        
+                }
+                result["recipients"] = recipients;
+            }
+        }
+
+        private static void AddSinkDomainToAddress(IDictionary<string, object> address, string fieldName)
+        {            
+            if (address.ContainsKey(fieldName))
+            {
+                var currentAddress = (string)address[fieldName];
+                if (!String.IsNullOrWhiteSpace(currentAddress) && !currentAddress.EndsWith(SINK_DOMAIN, true, null))
+                    address[fieldName] = currentAddress + SINK_DOMAIN;
+
+            }            
+        }
+    }
+}

src/SparkPost/SparkPost.csproj

@@ -93,6 +93,7 @@
     <Compile Include="SendingDomains.cs" />
     <Compile Include="SendingDomainStatus.cs" />
     <Compile Include="SendRecipientListsResponse.cs" />
+    <Compile Include="SinkHandling.cs" />
     <Compile Include="UpdateRecipientListResponse.cs" />
     <Compile Include="UpdateSendingDomainResponse.cs" />
     <Compile Include="Utilities\Jsonification.cs" />

src/SparkPost/Transmissions.cs

@@ -21,12 +21,12 @@ public Transmissions(Client client, IRequestSender requestSender, DataMapper dat
         }
 
         public async Task<SendTransmissionResponse> Send(Transmission transmission)
-        {
+        {            
             var request = new Request
             {
                 Url = $"api/{client.Version}/transmissions",
                 Method = "POST",
-                Data = dataMapper.ToDictionary(transmission)
+                Data = dataMapper.ToDictionary(transmission, client.CustomSettings.SinkAllTransmissions)
             };
 
             var response = await requestSender.Send(request);