Adding FMI source to MI app #5299
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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@@ -16,34 +16,79 @@ internal class ServiceFabricManagedIdentitySource : AbstractManagedIdentity | |
| private const string ServiceFabricMsiApiVersion = "2019-07-01-preview"; | ||
| private readonly Uri _endpoint; | ||
| private readonly string _identityHeaderValue; | ||
| private readonly bool _isFederated; | ||
| private static string _mitsEndpointFmiPath => "/metadata/identity/oauth2/fmi/credential"; | ||
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|
||
| public static AbstractManagedIdentity Create(RequestContext requestContext, bool isFmiServiceFabric = false) | ||
| { | ||
| Uri endpointUri; | ||
| string identityEndpoint = EnvironmentVariables.IdentityEndpoint; | ||
|
|
||
| if (isFmiServiceFabric) | ||
| { | ||
| VerifyFederatedEnvVariablesAreAvailable(); | ||
| requestContext.Logger.Info(() => "[Managed Identity] Service fabric federated managed identity is available."); | ||
| identityEndpoint = EnvironmentVariables.FmiServiceFabricEndpoint; | ||
| requestContext.Logger.Info(() => "[Managed Identity] Using FMI Service fabric endpoint."); | ||
|
|
||
| if (!Uri.TryCreate(identityEndpoint + _mitsEndpointFmiPath, UriKind.Absolute, out endpointUri)) | ||
| { | ||
| string errorMessage = string.Format(CultureInfo.InvariantCulture, MsalErrorMessage.ManagedIdentityEndpointInvalidUriError, | ||
| "APP_IDENTITY_ENDPOINT", identityEndpoint, "FMI Service Fabric"); | ||
|
|
||
| throw MsalServiceExceptionFactory.CreateManagedIdentityException( | ||
| MsalError.InvalidManagedIdentityEndpoint, | ||
| errorMessage, | ||
| null, | ||
| ManagedIdentitySource.ServiceFabric, | ||
| null); | ||
| } | ||
| } | ||
| else | ||
| { | ||
| requestContext.Logger.Info(() => "[Managed Identity] Service fabric managed identity is available."); | ||
|
|
||
| if (!Uri.TryCreate(identityEndpoint, UriKind.Absolute, out endpointUri)) | ||
| { | ||
| string errorMessage = string.Format(CultureInfo.InvariantCulture, MsalErrorMessage.ManagedIdentityEndpointInvalidUriError, | ||
| "IDENTITY_ENDPOINT", identityEndpoint, "Service Fabric"); | ||
|
|
||
| throw MsalServiceExceptionFactory.CreateManagedIdentityException( | ||
| MsalError.InvalidManagedIdentityEndpoint, | ||
| errorMessage, | ||
| null, | ||
| ManagedIdentitySource.ServiceFabric, | ||
| null); | ||
| } | ||
| } | ||
|
|
||
| requestContext.Logger.Verbose(() => $"[Managed Identity] Creating Service Fabric {(isFmiServiceFabric ? "federated" : "")} managed identity. Endpoint URI: {identityEndpoint}"); | ||
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|
||
| return new ServiceFabricManagedIdentitySource(requestContext, endpointUri, EnvironmentVariables.IdentityHeader, isFmiServiceFabric); | ||
| } | ||
|
|
||
| private static void VerifyFederatedEnvVariablesAreAvailable() | ||
| { | ||
| if (string.IsNullOrEmpty(EnvironmentVariables.IdentityServerThumbprint)) | ||
| { | ||
| throw new ArgumentException(string.Format(CultureInfo.InvariantCulture, MsalErrorMessage.ManagedIdentityFmiInvalidEnvVariableError, | ||
| "IDENTITY_SERVER_THUMBPRINT")); | ||
| } | ||
| if (string.IsNullOrEmpty(EnvironmentVariables.FmiServiceFabricEndpoint)) | ||
| { | ||
| throw new ArgumentException(string.Format(CultureInfo.InvariantCulture, MsalErrorMessage.ManagedIdentityFmiInvalidEnvVariableError, | ||
| "APP_IDENTITY_ENDPOINT")); | ||
| } | ||
| if (string.IsNullOrEmpty(EnvironmentVariables.IdentityHeader)) | ||
| { | ||
| throw new ArgumentException(string.Format(CultureInfo.InvariantCulture, MsalErrorMessage.ManagedIdentityFmiInvalidEnvVariableError, | ||
| "IDENTITY_HEADER")); | ||
| } | ||
| if (string.IsNullOrEmpty(EnvironmentVariables.FmiServiceFabricApiVersion)) | ||
| { | ||
| throw new ArgumentException(string.Format(CultureInfo.InvariantCulture, MsalErrorMessage.ManagedIdentityFmiInvalidEnvVariableError, | ||
| "IDENTITY_API_VERSION", "FMI Service Fabric")); | ||
| } | ||
| } | ||
|
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||
| internal override Func<HttpRequestMessage, X509Certificate2, X509Chain, SslPolicyErrors, bool> GetValidationCallback() | ||
|
|
@@ -62,11 +107,12 @@ private bool ValidateServerCertificateCallback(HttpRequestMessage message, X509C | |
| return string.Equals(certificate.GetCertHashString(), EnvironmentVariables.IdentityServerThumbprint, StringComparison.OrdinalIgnoreCase); | ||
| } | ||
|
|
||
| private ServiceFabricManagedIdentitySource(RequestContext requestContext, Uri endpoint, string identityHeaderValue, bool isFmi) : | ||
| base(requestContext, ManagedIdentitySource.ServiceFabric) | ||
| { | ||
| _endpoint = endpoint; | ||
| _identityHeaderValue = identityHeaderValue; | ||
| _isFederated = isFmi; | ||
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||
| if (requestContext.ServiceBundle.Config.ManagedIdentityId.IsUserAssigned) | ||
| { | ||
|
|
@@ -77,31 +123,43 @@ private ServiceFabricManagedIdentitySource(RequestContext requestContext, Uri en | |
| protected override ManagedIdentityRequest CreateRequest(string resource) | ||
| { | ||
| ManagedIdentityRequest request = new ManagedIdentityRequest(HttpMethod.Get, _endpoint); | ||
| request.Headers["secret"] = _identityHeaderValue; | ||
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||
| if (_isFederated) | ||
| { | ||
| _requestContext.Logger.Info("[Managed Identity] Request is for FMI, no ids or resource will be added to the request."); | ||
| request.QueryParameters["api-version"] = EnvironmentVariables.FmiServiceFabricApiVersion; | ||
| } | ||
| else | ||
| { | ||
| request.QueryParameters["api-version"] = ServiceFabricMsiApiVersion; | ||
| request.QueryParameters["resource"] = resource; | ||
|
|
||
| switch (_requestContext.ServiceBundle.Config.ManagedIdentityId.IdType) | ||
|
There was a problem hiding this comment. Shouldnt there be a default case? We could log the unexpected, that could give us additional information when troubleshooting. There was a problem hiding this comment. Technically yes, but this ID is a required parameter for the managed identity application. So it will always be set to something unless there is a catastrophic failure. There was a problem hiding this comment. It's still a good practice to throw an exception @trwalke on default. It will protect against a case where a new enum parameter is added. |
||
| { | ||
| case AppConfig.ManagedIdentityIdType.ClientId: | ||
| _requestContext.Logger.Info("[Managed Identity] Adding user assigned client id to the request."); | ||
| request.QueryParameters[Constants.ManagedIdentityClientId] = _requestContext.ServiceBundle.Config.ManagedIdentityId.UserAssignedId; | ||
| break; | ||
|
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||
| case AppConfig.ManagedIdentityIdType.ResourceId: | ||
| _requestContext.Logger.Info("[Managed Identity] Adding user assigned resource id to the request."); | ||
| request.QueryParameters[Constants.ManagedIdentityResourceId] = _requestContext.ServiceBundle.Config.ManagedIdentityId.UserAssignedId; | ||
| break; | ||
|
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||
| case AppConfig.ManagedIdentityIdType.ObjectId: | ||
| _requestContext.Logger.Info("[Managed Identity] Adding user assigned object id to the request."); | ||
| request.QueryParameters[Constants.ManagedIdentityObjectId] = _requestContext.ServiceBundle.Config.ManagedIdentityId.UserAssignedId; | ||
| break; | ||
| } | ||
| } | ||
|
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||
| return request; | ||
| } | ||
|
|
||
| internal string GetEndpointForTesting() | ||
| { | ||
| return _endpoint.ToString(); | ||
| } | ||
| } | ||
| } | ||
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I don't think this is right. The source detection should not interfere with
isFmiflag. The MSI source should be expected to be cached (statically, in memory) by MSAL.In other words, each MSI request can either go to the normal endpoint or to the fmi endpoint.
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I dont think this is the case. The source detection is effectively turned off if
IsFmiis enabled and only the FMI source will be used.See ManagedIdentityClient
This parameter specifically is to change this source to only do FMI.
Also, when you say cached (statically, in memory), can more that one of these source objects be cached? meaning, can there be one for regular SF and one for FMI?