From a26bdbe212c3a17628b2d6e5bda32e9d5a2bc24d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=BCrgen=20Rosenthal-Buroh?=
 <22403655+JuergenRB@users.noreply.github.com>
Date: Fri, 20 Sep 2024 15:36:07 +0200
Subject: [PATCH] Add GetUserInformationList by language

---
 .../Extensions/ListExtensions.cs              | 50 +++++++++++++++----
 1 file changed, 40 insertions(+), 10 deletions(-)

diff --git a/src/lib/PnP.Framework/Extensions/ListExtensions.cs b/src/lib/PnP.Framework/Extensions/ListExtensions.cs
index 98f54e041..b600ee72e 100644
--- a/src/lib/PnP.Framework/Extensions/ListExtensions.cs
+++ b/src/lib/PnP.Framework/Extensions/ListExtensions.cs
@@ -1292,32 +1292,62 @@ public static List GetListByUrl(this Web web, string webRelativeUrl, params Expr
         }
 
         /// <summary>
-        /// Gets the publishing pages library of the web based on site language
+        /// Gets the list of the web based on site language
         /// </summary>
         /// <param name="web">The web.</param>
-        /// <returns>The publishing pages library. Returns null if library was not found.</returns>
+        /// <param name="source">The source.</param>
+        /// <param name="defaultResourceFile">The defaultResourceFile.</param>
+        /// <returns>The list. Returns null if list was not found.</returns>
         /// <exception cref="System.InvalidOperationException">
-        /// Could not load pages library URL name from 'cmscore' resources file.
+        /// Could not load list URL name from 'defaultResourceFile' resources file.
         /// </exception>
-        public static List GetPagesLibrary(this Web web)
+        private static List GetListByLanguage(this Web web, string source, string defaultResourceFile)
         {
             if (web == null) throw new ArgumentNullException(nameof(web));
 
             var context = web.Context;
             int language = (int)web.EnsureProperty(w => w.Language);
 
-            var result = Utilities.Utility.GetLocalizedString(context, "$Resources:List_Pages_UrlName", "osrvcore", language);
+            var result = Utilities.Utility.GetLocalizedString(context, source, defaultResourceFile, language);
             context.ExecuteQueryRetry();
-            string pagesLibraryName = new Regex(@"['´`]").Replace(result.Value, "");
+            string listName = new Regex(@"['´`]").Replace(result.Value, "");
 
-            if (string.IsNullOrEmpty(pagesLibraryName))
+            if (string.IsNullOrEmpty(listName))
             {
-                throw new InvalidOperationException("Could not load pages library URL name from 'cmscore' resources file.");
+                throw new InvalidOperationException($"Could not load list URL name from '{defaultResourceFile}' resources file.");
             }
 
-            return web.GetListByUrl(pagesLibraryName) ?? web.GetListByTitle(pagesLibraryName);
+            return web.GetListByUrl(listName) ?? web.GetListByTitle(listName);
+        }
+
+        /// <summary>
+        /// Gets the user information list of the web based on site language
+        /// </summary>
+        /// <param name="web">The web.</param>
+        /// <returns>The user information list. Returns null if library was not found.</returns>
+        /// <exception cref="System.InvalidOperationException">
+        /// Could not load pages library URL name from 'core' resources file.
+        /// </exception>
+        public static List GetUserInformationList(this Web web)
+        {
+            return web.GetListByLanguage("$Resources:userinfo_schema_listtitle", "core");
+        }
+
+        /// <summary>
+        /// Gets the publishing pages library of the web based on site language
+        /// </summary>
+        /// <param name="web">The web.</param>
+        /// <returns>The publishing pages library. Returns null if library was not found.</returns>
+        /// <exception cref="System.InvalidOperationException">
+        /// Could not load pages library URL name from 'cmscore' resources file.
+        /// </exception>
+        public static List GetPagesLibrary(this Web web)
+        {
+            return web.GetListByLanguage("$Resources:List_Pages_UrlName", "osrvcore");
         }
 
+        
+
         /// <summary>
         /// Gets the web relative URL.
         /// Allow users to get the web relative URL of a list.  
@@ -2332,7 +2362,7 @@ public static void EnableModernAudienceTargeting(this List list)
                 Field firstField = list.Fields.AddFieldAsXml(firstModernTargetingFieldXml, false, addOptions);
                 list.Context.Load(firstField);
 
-                var userInformationList = web.Lists.GetByTitle("User Information List");
+                var userInformationList = web.GetUserInformationList();
                 list.Context.Load(userInformationList, l => l.Id);
                 list.Context.ExecuteQueryRetry();