From 110194c3a5fe1e889b1a3f9ebcc21e5f52dde456 Mon Sep 17 00:00:00 2001
From: Yvan Duhamel <yvandev@outlook.fr>
Date: Tue, 7 May 2024 10:02:36 +0200
Subject: [PATCH] Add helper methods to get/delete a tenant in the
 configuration

---
 CHANGELOG.md                                  |  1 +
 .../EntraIDProviderConfiguration.cs           | 37 ++++++++++++++++++-
 2 files changed, 36 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index f38b850..7e69bf9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 ## Unreleased
 
 * Fix an NullReferenceException in a very rare scenario where ClaimsPrincipal.Identity is null
+* Add helper methods to get/delete a tenant in the configuration
 
 ## EntraCP v25.0.20240503.33 enhancements & bug-fixes - Published in May 3, 2024
 
diff --git a/Yvand.EntraCP/Yvand.EntraClaimsProvider/Configuration/EntraIDProviderConfiguration.cs b/Yvand.EntraCP/Yvand.EntraClaimsProvider/Configuration/EntraIDProviderConfiguration.cs
index 7537328..006fd3a 100644
--- a/Yvand.EntraCP/Yvand.EntraClaimsProvider/Configuration/EntraIDProviderConfiguration.cs
+++ b/Yvand.EntraCP/Yvand.EntraClaimsProvider/Configuration/EntraIDProviderConfiguration.cs
@@ -404,7 +404,7 @@ public bool UpdateTenantCredentials(string tenantName, string newClientSecret, s
                 throw new ArgumentNullException(nameof(newClientSecret));
             }
 
-            EntraIDTenant tenant = this.EntraIDTenants.FirstOrDefault(x => x.Name.Equals(tenantName, StringComparison.InvariantCultureIgnoreCase));
+            EntraIDTenant tenant = GetTenantConfiguration(tenantName);
             if (tenant == null) { return false; }
             string clientId = String.IsNullOrWhiteSpace(newClientId) ? tenant.ClientId : newClientId;
             return tenant.SetCredentials(clientId, newClientSecret);
@@ -426,13 +426,46 @@ public bool UpdateTenantCredentials(string tenantName, string newClientCertifica
                 throw new ArgumentNullException(nameof(tenantName));
             }
 
-            EntraIDTenant tenant = this.EntraIDTenants.FirstOrDefault(x => x.Name.Equals(tenantName, StringComparison.InvariantCultureIgnoreCase));
+            EntraIDTenant tenant = GetTenantConfiguration(tenantName);
             if (tenant == null) { return false; }
 
             string clientId = String.IsNullOrWhiteSpace(newClientId) ? tenant.ClientId : newClientId;
             return tenant.SetCredentials(clientId, newClientCertificatePfxFilePath, newClientCertificatePfxPassword);
         }
 
+        /// <summary>
+        /// Gets the tenant configuration
+        /// </summary>
+        /// <param name="tenantName">Name of the tenant</param>
+        /// <returns></returns>
+        /// <exception cref="ArgumentNullException"></exception>
+        public EntraIDTenant GetTenantConfiguration(string tenantName)
+        {
+            if (String.IsNullOrWhiteSpace(tenantName))
+            {
+                throw new ArgumentNullException(nameof(tenantName));
+            }
+            return this.EntraIDTenants.FirstOrDefault(x => x.Name.Equals(tenantName, StringComparison.OrdinalIgnoreCase));
+        }
+
+        /// <summary>
+        /// Deletes the tenant configuration
+        /// </summary>
+        /// <param name="tenantName">Name of the tenant</param>
+        /// <returns></returns>
+        /// <exception cref="ArgumentNullException"></exception>
+        public bool DeleteTenantConfiguration(string tenantName)
+        {
+            if (String.IsNullOrWhiteSpace(tenantName))
+            {
+                throw new ArgumentNullException(nameof(tenantName));
+            }
+
+            EntraIDTenant tenant = GetTenantConfiguration(tenantName);
+            if (tenant == null) { return false; }
+            return this.EntraIDTenants.Remove(tenant);
+        }
+
         /// <summary>
         /// If it is valid, commits the current settings to the SharePoint settings database
         /// </summary>