ListContactsRequestMarshaller incorrectly builds content byte array

[franhoey]

Description

Calling ListContactsAsync always errors with the message "The request signature we calculated does not match the signature you provided. Check your AWS Secret Access Key and signing method. Consult the service documentation for details."

The signature seems to be throw by the Request.Content object build in the ListContactsRequestMarshaller. By building my code against the source project and setting request.Content to null the call succeeds.

Reproduction Steps

Setup a Contact List
Add a Contact to the list
Call ListContactsAsync to retrieve contacts

Logs

N/A

Environment

• SDK Version: AWSSDK.SimpleEmailV2
• Package Version: 3.5.2.2
• OS Info: Windows 10
• Build Environment Visual Studio
• Targeted .NET Platform: Core 2.1.1

Resolution

Sorry, I'm can see any obvious issue with the content. For example even just "{}" causes a problem

---

This is a 🐛 bug-report

[franhoey]

Forgot to add, there is a forum post open about this - https://forums.aws.amazon.com/thread.jspa?messageID=971818

[ashishdhingra]

Hi @franhoey,

Good afternoon.

Could you please share the following to reproduce the issue:

• Sample code along with detailed steps
• Region in client config
• How your credentials are configured. Although I'm not sure if it is related, I have seen issues where credential resolution in CLI is different from .NET SDK (where if using Visual Studio, there is SDK store as well).

Not sure if this is related to SigV4 signing, following posts might be helpful:

• https://docs.aws.amazon.com/general/latest/gr/signature-v4-troubleshooting.html
• https://forums.aws.amazon.com/thread.jspa?threadID=234825

As 2nd link mentions, it might also occur if you set UseHttp as true in client config.

Thanks,
Ashish

[franhoey]

Reduced class attached. The CreateContactAsync function works, but the GetJobSubscribersAsync doesn't work.

I have tried setting UseHttp to false, but it didn't make a difference.

Commenting out this section of ListContactsRequestMarshaller fixes the issue

using (StringWriter stringWriter = new StringWriter(CultureInfo.InvariantCulture))
            {
                JsonWriter writer = new JsonWriter(stringWriter);
                writer.WriteObjectStart();
                var context = new JsonMarshallerContext(request, writer);
                if (publicRequest.IsSetFilter())
                {
                    context.Writer.WritePropertyName("Filter");
                    context.Writer.WriteObjectStart();
                    var marshaller = ListContactsFilterMarshaller.Instance;
                    marshaller.Marshall(publicRequest.Filter, context);
                    context.Writer.WriteObjectEnd();
                }
                writer.WriteObjectEnd();
                string snippet = stringWriter.ToString();
                request.Content = System.Text.Encoding.UTF8.GetBytes(snippet);
            }

[ashishdhingra]

Easily reproducible using the following code (used AWSSDK.SimpleEmailV2 version 3.5.2.6):

using System;
using System.Threading;
using System.Threading.Tasks;
using Amazon;
using Amazon.Runtime;
using Amazon.Runtime.CredentialManagement;
using Amazon.SimpleEmailV2;
using Amazon.SimpleEmailV2.Model;


namespace SimpleEmailService_Issue1793
{
    class Program
    {
        private const string CONTACT_LIST_NAME = "ChesterDevJobs";
        private const string INSTANT_ALERT_TOPIC = "InstantJobAlerts";
        private static readonly AWSCredentials _credentials;
        private static readonly AmazonSimpleEmailServiceV2Config _config;

        static Program()
        {
            var chain = new CredentialProfileStoreChain();
            if (!chain.TryGetAWSCredentials("default", out _credentials))
            {
                throw new ArgumentNullException("Unable to load credentials in default profile chain");
            }

            _config = new AmazonSimpleEmailServiceV2Config()
            {
                RegionEndpoint = RegionEndpoint.EUWest2,
            };
        }

        static void Main(string[] args)
        {
            //var createContactListResult = CreateContactListAsync(CONTACT_LIST_NAME).Result;
            //var createContactResult = CreateContactAsync("[email protected]", new CancellationToken()).Result;
            var result = GetJobSubscribersAsync(null, new CancellationToken()).Result;
        }

        public static async Task<CreateContactListResponse> CreateContactListAsync(string listName)
        {
            using (var client = new AmazonSimpleEmailServiceV2Client(_credentials, _config))
            {
                return await client.CreateContactListAsync(
                    new CreateContactListRequest()
                    {
                         ContactListName = CONTACT_LIST_NAME,
                         Topics = new System.Collections.Generic.List<Topic> (){ new Topic() { TopicName = INSTANT_ALERT_TOPIC, DisplayName = INSTANT_ALERT_TOPIC, DefaultSubscriptionStatus = SubscriptionStatus.OPT_IN } }
                    });
            }
        }

        public static async Task<CreateContactResponse> CreateContactAsync(string emailAddress, CancellationToken cancellationToken)
        {
            using (var client = new AmazonSimpleEmailServiceV2Client(_credentials, _config))
            {
                return await client.CreateContactAsync(
                    new CreateContactRequest()
                    {
                        ContactListName = CONTACT_LIST_NAME,
                        EmailAddress = emailAddress
                    },
                    cancellationToken);
            }
        }

        public static async Task<ListContactsResponse> GetJobSubscribersAsync(string nextToken, CancellationToken cancellationToken)
        {
            using (var client = new AmazonSimpleEmailServiceV2Client(_credentials, _config))
            {
                return await client.ListContactsAsync(
                    new ListContactsRequest()
                    {
                        ContactListName = CONTACT_LIST_NAME,
                        PageSize = 1,
                        Filter = new ListContactsFilter()
                        {
                            TopicFilter = new TopicFilter()
                            { TopicName = INSTANT_ALERT_TOPIC, UseDefaultIfPreferenceUnavailable = true },
                            FilteredStatus = SubscriptionStatus.OPT_IN
                        }
                    },
                    cancellationToken);
            }
        }
    }
}

NOTE: The ContentType of Response (Amazon.Runtime.Internal.Transform.HttpClientResponseData) in the innermost exception is application/x-amz-json-1.1.

The below AWS CLI command works fine:

aws sesv2 list-contacts --contact-list-name "ChesterDevJobs" --region eu-west-2 --page-size 1 --filter '{"FilteredStatus": "OPT_IN", "TopicFilter": {"TopicName": "InstantJobAlerts", "UseDefaultIfPreferenceUnavailable": true}}'

[github-actions]

We have noticed this issue has not received attention in 1 year. We will close this issue for now. If you think this is in error, please feel free to comment and reopen the issue.

[ashishdhingra]

No auto-close.

[ashishdhingra]

This is a cross SDK service issue tracked via aws/aws-sdk#307.

[ashishdhingra]

Closing this in favor of aws/aws-sdk#307. The related issue has a feature request item in service team backlog.

[github-actions]

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