Implementierung von DirectorySearchService für Active Directory-Suchen. Unterstützt Caching und Konfiguration für Suchfunktionalität.

DigitalData.Core.Application/DirectorySearchService.cs

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+using DigitalData.Core.Contracts.Application;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Logging;
+using System.Configuration;
+using System.Diagnostics.CodeAnalysis;
+using System.DirectoryServices;
+using Microsoft.Extensions.Caching.Memory;
+
+namespace DigitalData.Core.Application
+{
+    [SuppressMessage("Interoperability", "CA1416:Validate platform compatibility", Justification = "<Pending>")]
+    public class DirectorySearchService : ServiceBase, IDirectorySearchService
+    {
+        private readonly IMemoryCache _memoryCache;
+        public readonly string SearchRootPath;
+
+        public DirectorySearchService(IConfiguration configuration, ILogger<DirectoryService> logger, IMemoryCache memoryCache)
+        {
+            SearchRootPath = configuration["DirectorySearch:SearchRootPath"] ?? throw new ConfigurationErrorsException("SearchRootPath configuration is missing.");
+            _memoryCache = memoryCache;
+        }
+
+        public IServiceResult<IEnumerable<ResultPropertyCollection>> FindAll(DirectoryEntry searchRoot, string filter, SearchScope searchScope = SearchScope.Subtree, int sizeLimit = 5000)
+        {
+            List<ResultPropertyCollection> list = new();
+
+            var searcher = new DirectorySearcher()
+            {
+                Filter = filter,
+                SearchScope = searchScope,
+                SizeLimit = sizeLimit,
+                SearchRoot = searchRoot
+            };
+
+            foreach (SearchResult result in searcher.FindAll())
+            {
+                ResultPropertyCollection rpc = result.Properties;
+                list.Add(rpc);
+            }
+
+            return Successful<IEnumerable<ResultPropertyCollection>>(list);
+        }
+
+        public IServiceResult<IEnumerable<ResultPropertyCollection>> FindAllByUserCache(string username, string filter, SearchScope searchScope = SearchScope.Subtree, int sizeLimit = 5000)
+        {
+            List<ResultPropertyCollection> list = new();
+
+            _memoryCache.TryGetValue(username, out DirectoryEntry? searchRoot);
+
+            if (searchRoot is null)
+                return Failed<IEnumerable<ResultPropertyCollection>>(MessageKey.DirSearcherDisconnected.ToString());
+
+            return FindAll(searchRoot, filter, searchScope, sizeLimit);
+        }
+    }
+}