Merge from booking branch

booking/Admin/DataManager.cs

@@ -0,0 +1,157 @@
+using System;
+using System.Diagnostics;
+using System.IO;
+using Yavsc.Model.Admin;
+using Npgsql.Web.Blog;
+using System.Resources;
+using System.Reflection;
+
+namespace Yavsc.Admin
+{
+	/// <summary>
+	/// Data manager.
+	/// </summary>
+	public class DataManager
+	{
+		DataAccess da; 
+		/// <summary>
+		/// Initializes a new instance of the <see cref="Yavsc.Admin.DataManager"/> class.
+		/// </summary>
+		/// <param name="datac">Datac.</param>
+		public DataManager (DataAccess datac)
+		{
+			da = datac;
+		}
+		/// <summary>
+		/// Creates the backup.
+		/// </summary>
+		/// <returns>The backup.</returns>
+		public Export CreateBackup ()
+		{
+			Environment.SetEnvironmentVariable("PGPASSWORD", da.Password);
+			string fileName = da.BackupPrefix + "-" + DateTime.Now.ToString ("yyyyMMddhhmmss")+".tar";
+			FileInfo ofi = new FileInfo (fileName);
+			Export e = new Export ();
+			e.FileName = ofi.FullName;
+			/*
+			Exec ("pg_dump", string.Format (
+				"-wb -Z3 -f {0} -Ft -h {1} -U {2} -p {3} {4}",
+				fileName, da.Host, da.Dbuser, da.Port, da.Dbname ),e);
+				*/
+			Exec ("pg_dump", string.Format (
+				"-f {0} -Ft -h {1} -U {2} -p {3} {4}",
+				fileName, da.Host, da.DbUser, da.Port, da.DbName ),e);
+			return e;
+		} 
+
+		private void Exec(string name, string args, TaskOutput output)
+		{
+			ProcessStartInfo Pinfo = 
+				new ProcessStartInfo (name,args);
+			Pinfo.RedirectStandardError = true;
+			Pinfo.RedirectStandardOutput = true;
+			Pinfo.CreateNoWindow = true;
+			Pinfo.UseShellExecute = false;
+			using (Process p = new Process ()) {
+				p.EnableRaisingEvents = true;
+				p.StartInfo = Pinfo;
+				p.Start ();
+				p.WaitForExit ();
+				output.Error = p.StandardError.ReadToEnd ();
+				output.Message = p.StandardOutput.ReadToEnd ();
+				output.ExitCode = p.ExitCode;
+				p.Close ();
+			}
+		}
+		/// <summary>
+		/// Restore the specified fileName and dataOnly.
+		/// </summary>
+		/// <param name="fileName">File name.</param>
+		/// <param name="dataOnly">If set to <c>true</c> data only.</param>
+		public TaskOutput Restore (string fileName, bool dataOnly)
+		{
+			Environment.SetEnvironmentVariable("PGPASSWORD", da.Password);
+			var t = new TaskOutput ();
+			Exec ("pg_restore", (dataOnly?"-a ":"")+string.Format ( 
+				"-1 -Ft -O -h {0} -U {1} -p {2} -d {3} {4}",
+				da.Host, da.DbUser, da.Port, da.DbName, fileName ),t);
+			/*
+			Exec ("pg_restore", (dataOnly?"-a ":"")+string.Format ( 
+				"-1 -w -Fd -O -h {0} -U {1} -p {2} -d {3} {4}",
+				da.Host, da.Dbuser, da.Port, da.Dbname, fileName ),t);
+			*/
+			return t;
+		}
+		/// <summary>
+		/// Creates the db.
+		/// </summary>
+		/// <returns>The db.</returns>
+		public TaskOutput CreateDb ()
+		{
+			TaskOutput res = new TaskOutput ();
+
+			string sql;
+			try {
+				Assembly a =  System.Reflection.Assembly.GetExecutingAssembly();
+				using (Stream sqlStream = a.GetManifestResourceStream("Yavsc.instdbws.sql"))
+				{
+					try { using (StreamReader srdr = new StreamReader (sqlStream)) {
+						sql  = srdr.ReadToEnd ();
+						using (var cnx = new Npgsql.NpgsqlConnection (da.ConnectionString)) {
+							using (var cmd = cnx.CreateCommand ()) {
+								cmd.CommandText = sql;
+								cnx.Open();
+								cmd.ExecuteNonQuery();
+								cnx.Close();
+								}
+						}
+						} } catch (Exception exg) {
+						res.ExitCode = 1;
+						res.Error = 
+							string.Format ("Exception of type {0} occred retrieving the script",
+								exg.GetType ().Name);
+						res.Message = exg.Message;
+					}
+				}
+			}
+			catch (Exception ex) {
+				res.ExitCode = 1;
+				res.Error = 
+					string.Format ("Exception of type {0} occured during the script execution",
+					ex.GetType ().Name);
+				res.Message = ex.Message;
+			}
+
+			return res;
+		}
+		/// <summary>
+		/// Tags the backup.
+		/// </summary>
+		/// <returns>The backup.</returns>
+		/// <param name="filename">Filename.</param>
+		/// <param name="tags">Tags.</param>
+		public Export TagBackup (string filename, string [] tags)
+		{
+			/* FileInfo fi = new FileInfo (filename);
+			using (FileStream s = fi.OpenWrite ()) {
+
+			} */
+				throw new NotImplementedException ();
+		}
+		/// <summary>
+		/// Tags the restore.
+		/// </summary>
+		/// <returns>The restore.</returns>
+		/// <param name="fileName">File name.</param>
+		public TaskOutput TagRestore (string fileName)
+		{
+			Environment.SetEnvironmentVariable ("PGPASSWORD", da.Password);
+			var t = new TaskOutput ();
+			Exec ("pg_restore", string.Format ( 
+				"-a -w -Fd -O -h {0} -U {1} -p {2} -d {3} {4}",
+				da.Host, da.DbUser, da.Port, da.DbName, fileName ),t);
+			return t;
+		}
+	}
+}
+

booking/Admin/Export.cs

@@ -0,0 +1,24 @@
+using System;
+using System.ComponentModel;
+
+namespace Yavsc.Model.Admin
+{
+	/// <summary>
+	/// Export.
+	/// </summary>
+	public class Export: TaskOutput
+	{
+		/// <summary>
+		/// Initializes a new instance of the <see cref="Yavsc.Model.Admin.Export"/> class.
+		/// </summary>
+		public Export ()
+		{
+		}
+		/// <summary>
+		/// Gets or sets the name of the file.
+		/// </summary>
+		/// <value>The name of the file.</value>
+		public string FileName { get; set; }
+	}
+}
+