Imdsv2: Generate CSR and execute CSR request

src/client/Microsoft.Identity.Client/ManagedIdentity/CertificateRequestResponse.cs

@@ -0,0 +1,52 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+#if SUPPORTS_SYSTEM_TEXT_JSON
+    using JsonProperty = System.Text.Json.Serialization.JsonPropertyNameAttribute;
+#else
+    using Microsoft.Identity.Json;
+#endif
+
+namespace Microsoft.Identity.Client.ManagedIdentity
+{
+    /// <summary>
+    /// Represents the response for a Managed Identity CSR request.
+    /// </summary>
+    internal class CertificateRequestResponse
+    {
+        [JsonProperty("client_id")]
+        public string ClientId { get; set; }
+
+        [JsonProperty("tenant_id")]
+        public string TenantId { get; set; }
+
+        [JsonProperty("client_credential")]
+        public string ClientCredential { get; set; }
+
+        [JsonProperty("regional_token_url")]
+        public string RegionalTokenUrl { get; set; }
+
+        [JsonProperty("expires_in")]
+        public int ExpiresIn { get; set; }
+
+        [JsonProperty("refresh_in")]
+        public int RefreshIn { get; set; }
+
+        public CertificateRequestResponse() { }
+
+        public static bool IsValid(CertificateRequestResponse certificateRequestResponse)
+        {
+            if (string.IsNullOrEmpty(certificateRequestResponse.ClientId) ||
+                string.IsNullOrEmpty(certificateRequestResponse.TenantId) ||
+                string.IsNullOrEmpty(certificateRequestResponse.ClientCredential) ||
+                string.IsNullOrEmpty(certificateRequestResponse.RegionalTokenUrl) ||
+                certificateRequestResponse.ExpiresIn <= 0 ||
+                certificateRequestResponse.RefreshIn <= 0)
+            {
+                return false;
+            }
+
+            return true;
+        }
+    }
+}