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using Duplicati.Library.IO;
using System;
using System.Collections.Generic;
using System.Linq;
namespace Duplicati.Library.Snapshots
{
public class MSSQLDB : IEquatable<MSSQLDB>
{
public string Name { get; }
public string ID { get; }
public List<string> DataPaths { get; }
public MSSQLDB(string Name, string ID, List<string> DataPaths)
{
this.Name = Name;
this.ID = ID;
this.DataPaths = DataPaths;
}
bool IEquatable<MSSQLDB>.Equals(MSSQLDB other)
{
return ID.Equals(other.ID);
}
public override int GetHashCode()
{
return ID.GetHashCode();
}
public override bool Equals(object obj)
{
MSSQLDB db = obj as MSSQLDB;
if (db != null)
{
return Equals(db);
}
else
{
return false;
}
}
public static bool operator ==(MSSQLDB db1, MSSQLDB db2)
{
if (object.ReferenceEquals(db1, db2)) return true;
if (object.ReferenceEquals(db1, null)) return false;
if (object.ReferenceEquals(db2, null)) return false;
return db1.Equals(db2);
}
public static bool operator !=(MSSQLDB db1, MSSQLDB db2)
{
if (object.ReferenceEquals(db1, db2)) return false;
if (object.ReferenceEquals(db1, null)) return true;
if (object.ReferenceEquals(db2, null)) return true;
return !db1.Equals(db2);
}
}
public class MSSQLUtility
{
/// <summary>
/// The tag used for logging
/// </summary>
private static readonly string LOGTAG = Logging.Log.LogTagFromType<MSSQLUtility>();
/// <summary>
/// The MS SQL VSS Writer Guid
/// </summary>
public static readonly Guid MSSQLWriterGuid = new Guid("a65faa63-5ea8-4ebc-9dbd-a0c4db26912a");
/// <summary>
/// MS SQL is supported only on Windows platform
/// </summary>
public bool IsMSSQLInstalled { get; }
/// <summary>
/// Enumerated MS SQL DBs
/// </summary>
public List<MSSQLDB> DBs { get { return m_DBs; } }
private readonly List<MSSQLDB> m_DBs;
public MSSQLUtility()
{
m_DBs = new List<MSSQLDB>();
if (!Utility.Utility.IsClientWindows)
{
IsMSSQLInstalled = false;
return;
}
string[] arrInstalledInstances = null;
var installed = Microsoft.Win32.Registry.GetValue(@"HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server", "InstalledInstances", "");
if (installed is string)
{
if (!string.IsNullOrWhiteSpace(installed as string))
arrInstalledInstances = new string[] { installed as string };
}
else if (installed is string[])
arrInstalledInstances = (string[])installed;
else if (installed != null)
try { arrInstalledInstances = (string[])installed; }
catch { }
if(Environment.Is64BitOperatingSystem && arrInstalledInstances == null)
{
var installed32on64 = Microsoft.Win32.Registry.GetValue(@"HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Microsoft SQL Server", "InstalledInstances", "");
if (installed32on64 is string)
{
if (!string.IsNullOrWhiteSpace(installed32on64 as string))
arrInstalledInstances = new string[] { installed32on64 as string };
}
else if (installed32on64 is string[])
arrInstalledInstances = (string[])installed32on64;
else if (installed32on64 != null)
try { arrInstalledInstances = (string[])installed32on64; }
catch { }
}
IsMSSQLInstalled = arrInstalledInstances != null && arrInstalledInstances.Length > 0;
if (!IsMSSQLInstalled)
Logging.Log.WriteInformationMessage(LOGTAG, "NoMSSQLInstance", "Cannot find any MS SQL Server instance. MS SQL Server is probably not installed.");
}
/// <summary>
/// For all MS SQL databases it enumerate all associated paths using VSS data
/// </summary>
/// <returns>A collection of DBs and paths</returns>
public void QueryDBsInfo()
{
if (!IsMSSQLInstalled)
return;
m_DBs.Clear();
using (var vssBackupComponents = new VssBackupComponents())
{
var writerGUIDS = new [] { MSSQLWriterGuid };
try
{
vssBackupComponents.SetupWriters(writerGUIDS, null);
}
catch (Exception)
{
throw new Interface.UserInformationException("Microsoft SQL Server VSS Writer not found - cannot backup SQL databases.", "NoMsSqlVssWriter");
}
foreach (var o in vssBackupComponents.ParseWriterMetaData(writerGUIDS))
{
m_DBs.Add(new MSSQLDB(o.Name, o.LogicalPath + "\\" + o.Name, o.Paths.ConvertAll(m => m[0].ToString().ToUpperInvariant() + m.Substring(1))
.Distinct(Utility.Utility.ClientFilenameStringComparer)
.OrderBy(a => a).ToList()));
}
}
}
}
}
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