Support creating & editing additional user types (#1962)

* WIP

* Fix contained user password handling

* More user related bug fixes

src/Microsoft.SqlTools.ServiceLayer/Utility/DatabaseUtils.cs

@@ -14,6 +14,7 @@ using System;
 using System.Collections.Generic;
 using System.Data;
 using System.IO;
+using System.Runtime.InteropServices;
 using System.Security;
 
 namespace Microsoft.SqlTools.ServiceLayer.Utility
@@ -86,6 +87,45 @@ namespace Microsoft.SqlTools.ServiceLayer.Utility
             return ss;
         }
 
+        public static bool IsSecureStringsEqual(SecureString ss1, SecureString ss2)
+        {
+            IntPtr bstr1 = IntPtr.Zero;
+            IntPtr bstr2 = IntPtr.Zero;
+            try
+            {
+                bstr1 = Marshal.SecureStringToBSTR(ss1);
+                bstr2 = Marshal.SecureStringToBSTR(ss2);
+                int length1 = Marshal.ReadInt32(bstr1, -4);
+                int length2 = Marshal.ReadInt32(bstr2, -4);
+                if (length1 != length2)
+                {
+                    return false;
+                }
+
+                for (int x = 0; x < length1; ++x)
+                {
+                    byte b1 = Marshal.ReadByte(bstr1, x);
+                    byte b2 = Marshal.ReadByte(bstr2, x);
+                    if (b1 != b2)
+                    {
+                        return false;
+                    }
+                }
+                return true;                        
+            }
+            finally
+            {
+                if (bstr2 != IntPtr.Zero)
+                {
+                    Marshal.ZeroFreeBSTR(bstr2);
+                }
+                if (bstr1 != IntPtr.Zero)
+                {
+                    Marshal.ZeroFreeBSTR(bstr1);
+                }
+            }
+        }
+
         /// <summary>
         /// this is the main method that is called by DropAllObjects for every object
         /// in the grid

src/Microsoft.SqlTools.ServiceLayer/Utility/LanguageUtils.cs

@@ -4,13 +4,16 @@
 //
 
 using System;
+using System.Collections;
+using System.Collections.Generic;
 using Microsoft.SqlServer.Management.Common;
 using Microsoft.SqlServer.Management.Smo;
+using Microsoft.SqlTools.ServiceLayer.Management;
 
 namespace Microsoft.SqlTools.ServiceLayer.Utility
 {
     /// <summary>
-    /// Summary description for CUtils.
+    /// Utility functions for working with server languages
     /// </summary>
     internal class LanguageUtils
     {
@@ -20,8 +23,7 @@ namespace Microsoft.SqlTools.ServiceLayer.Utility
         /// <param name="connectedServer"></param>
         /// <param name="languageName"></param>
         /// <returns>Returns string.Empty in case it doesn't find a matching languageName on the server</returns>
-        public static string GetLanguageAliasFromName(Server connectedServer,
-                                                        string languageName)
+        public static string GetLanguageAliasFromName(Server connectedServer, string languageName)
         {
             string languageAlias = string.Empty;
 
@@ -45,8 +47,7 @@ namespace Microsoft.SqlTools.ServiceLayer.Utility
         /// <param name="connectedServer"></param>
         /// <param name="languageAlias"></param>
         /// <returns>Returns string.Empty in case it doesn't find a matching languageAlias on the server</returns>
-        public static string GetLanguageNameFromAlias(Server connectedServer,
-                                                        string languageAlias)
+        public static string GetLanguageNameFromAlias(Server connectedServer, string languageAlias)
         {
             string languageName = string.Empty;
 
@@ -70,8 +71,7 @@ namespace Microsoft.SqlTools.ServiceLayer.Utility
         /// <param name="connectedServer"></param>
         /// <param name="languageAlias"></param>
         /// <returns>Throws exception in case it doesn't find a matching languageId on the server</returns>
-        public static int GetLcidFromLangId(Server connectedServer,
-                                                        int langId)
+        public static int GetLcidFromLangId(Server connectedServer, int langId)
         {
             int lcid = -1; //Unacceptable Lcid.            
 
@@ -100,8 +100,7 @@ namespace Microsoft.SqlTools.ServiceLayer.Utility
         /// <param name="connectedServer"></param>
         /// <param name="languageAlias"></param>
         /// <returns>Throws exception in case it doesn't find a matching lcid on the server</returns>
-        public static int GetLangIdFromLcid(Server connectedServer,
-                                                        int lcid)
+        public static int GetLangIdFromLcid(Server connectedServer, int lcid)
         {
             int langId = -1; //Unacceptable LangId.            
 
@@ -129,8 +128,7 @@ namespace Microsoft.SqlTools.ServiceLayer.Utility
         /// </summary>
         /// <param name="langid"></param>
         /// <returns></returns>
-        public static LanguageChoice GetLanguageChoiceAlias(Server connectedServer, 
-                                                                int lcid)
+        public static LanguageChoice GetLanguageChoiceAlias(Server connectedServer, int lcid)
         {
             SetLanguageDefaultInitFieldsForDefaultLanguages(connectedServer);
 
@@ -155,17 +153,46 @@ namespace Microsoft.SqlTools.ServiceLayer.Utility
             string[] fieldsNeeded = new string[] { "Alias", "Name", "LocaleID", "LangID" };
             connectedServer.SetDefaultInitFields(typeof(Language), fieldsNeeded);
         }
+
+        public static IList<LanguageDisplay> GetDefaultLanguageOptions(CDataContainer dataContainer)
+        {
+            // sort the languages alphabetically by alias
+            SortedList sortedLanguages = new SortedList(Comparer.Default);
+
+            LanguageUtils.SetLanguageDefaultInitFieldsForDefaultLanguages(dataContainer.Server);
+            if (dataContainer.Server != null && dataContainer.Server.Languages != null)
+            {
+                foreach (Language language in dataContainer.Server.Languages)
+                {
+                    LanguageDisplay listValue = new LanguageDisplay(language);
+                    sortedLanguages.Add(language.Alias, listValue);
+                }
+            }
+
+            IList<LanguageDisplay> res = new List<LanguageDisplay>();
+            foreach (LanguageDisplay ld in sortedLanguages.Values)
+            {
+                res.Add(ld);
+            }
+
+            return res;
+        }
+
+        public static string GetLanguageAliasFromDisplayText(string? displayText)
+        {
+            string[] parts = displayText?.Split(" - ");
+            return (parts != null && parts.Length > 1) ? parts[0] : displayText;            
+        }
+
+        public static bool IsDefaultLanguageSupported(Server server)
+        {
+            //Default Language was not supported before Denali.
+            return SqlMgmtUtils.IsSql11OrLater(server.ConnectionContext.ServerVersion)
+                && server.ServerType != DatabaseEngineType.SqlAzureDatabase;
+        }
+
     }
 
-    #region interface - ILanguageLcidWithConnectionInfo - used by property editors to talk with data object
-    interface ILanguageLcidWithConnectionInfo
-    {
-        int Lcid { get; }
-        ServerConnection Connection { get; }
-    }
-    #endregion
-
-    #region class - LanguageChoice
     internal class LanguageChoice
     {
         public string alias;
@@ -181,5 +208,4 @@ namespace Microsoft.SqlTools.ServiceLayer.Utility
             return alias;
         }
     }
-    #endregion
 }