Files
Umbraco-CMS/src/Umbraco.Core/DatabaseContext.cs
2012-11-30 17:56:02 -01:00

325 lines
13 KiB
C#

using System;
using System.Configuration;
using System.Data.SqlServerCe;
using System.IO;
using System.Linq;
using System.Web;
using System.Web.Configuration;
using System.Xml.Linq;
using Umbraco.Core.Configuration;
using Umbraco.Core.Logging;
using Umbraco.Core.Persistence;
using Umbraco.Core.Persistence.SqlSyntax;
namespace Umbraco.Core
{
/// <summary>
/// The Umbraco Database context
/// </summary>
/// <remarks>
/// One per AppDomain, represents the Umbraco database
/// </remarks>
public class DatabaseContext
{
private bool _configured;
private string _connectionString;
private string _providerName;
#region Singleton
private static readonly Lazy<DatabaseContext> lazy = new Lazy<DatabaseContext>(() => new DatabaseContext());
/// <summary>
/// Gets the current Database Context.
/// </summary>
public static DatabaseContext Current { get { return lazy.Value; } }
private DatabaseContext()
{
}
#endregion
/// <summary>
/// Gets the <see cref="Database"/> object for doing CRUD operations
/// against custom tables that resides in the Umbraco database.
/// </summary>
/// <remarks>
/// This should not be used for CRUD operations or queries against the
/// standard Umbraco tables! Use the Public services for that.
/// </remarks>
public Database Database
{
get { return DatabaseFactory.Current.Database; }
}
/// <summary>
/// Boolean indicating whether the database has been configured
/// </summary>
public bool IsDatabaseConfigured
{
get { return _configured; }
}
/// <summary>
/// Gets the configured umbraco db connection string.
/// </summary>
public string ConnectionString
{
get { return _connectionString; }
}
/// <summary>
/// Returns the name of the dataprovider from the connectionstring setting in config
/// </summary>
internal string ProviderName
{
get
{
if (string.IsNullOrEmpty(_providerName) == false)
return _providerName;
_providerName = "System.Data.SqlClient";
if (ConfigurationManager.ConnectionStrings[GlobalSettings.UmbracoConnectionName] != null)
{
if (!string.IsNullOrEmpty(ConfigurationManager.ConnectionStrings[GlobalSettings.UmbracoConnectionName].ProviderName))
_providerName = ConfigurationManager.ConnectionStrings[GlobalSettings.UmbracoConnectionName].ProviderName;
}
else
{
throw new InvalidOperationException("Can't find a connection string with the name '" + GlobalSettings.UmbracoConnectionName + "'");
}
return _providerName;
}
}
/// <summary>
/// Returns the Type of DatabaseProvider used
/// </summary>
public DatabaseProviders DatabaseProvider
{
get
{
string dbtype = Database.Connection == null ? ProviderName : Database.Connection.GetType().Name;
if (dbtype.StartsWith("MySql")) return DatabaseProviders.MySql;
if (dbtype.StartsWith("SqlCe") || dbtype.Contains("SqlServerCe")) return DatabaseProviders.SqlServerCE;
if (dbtype.StartsWith("Npgsql")) return DatabaseProviders.PostgreSQL;
if (dbtype.StartsWith("Oracle") || dbtype.Contains("OracleClient")) return DatabaseProviders.Oracle;
if (dbtype.StartsWith("SQLite")) return DatabaseProviders.SQLite;
if (dbtype.Contains("Azure")) return DatabaseProviders.SqlAzure;
return DatabaseProviders.SqlServer;
}
}
/// <summary>
/// Configure a ConnectionString for the embedded database.
/// </summary>
public void ConfigureDatabaseConnection()
{
var providerName = "System.Data.SqlServerCe.4.0";
var connectionString = "Datasource=|DataDirectory|Umbraco.sdf";
var appSettingsConnection = @"datalayer=SQLCE4Umbraco.SqlCEHelper,SQLCE4Umbraco;data source=|DataDirectory|\Umbraco.sdf";
SaveConnectionString(connectionString, appSettingsConnection, providerName);
var path = Path.Combine(GlobalSettings.FullpathToRoot, "App_Data", "Umbraco.sdf");
if (File.Exists(path) == false)
{
var engine = new SqlCeEngine(connectionString);
engine.CreateDatabase();
}
Initialize(providerName);
}
/// <summary>
/// Configure a ConnectionString that has been entered manually.
/// </summary>
/// <remarks>
/// Please note that we currently assume that the 'System.Data.SqlClient' provider can be used.
/// </remarks>
/// <param name="connectionString"></param>
public void ConfigureDatabaseConnection(string connectionString)
{
SaveConnectionString(connectionString, connectionString, string.Empty);
Initialize(string.Empty);
}
/// <summary>
/// Configures a ConnectionString for the Umbraco database based on the passed in properties from the installer.
/// </summary>
/// <param name="server">Name or address of the database server</param>
/// <param name="databaseName">Name of the database</param>
/// <param name="user">Database Username</param>
/// <param name="password">Database Password</param>
/// <param name="databaseProvider">Type of the provider to be used (Sql, Sql Azure, Sql Ce, MySql)</param>
public void ConfigureDatabaseConnection(string server, string databaseName, string user, string password, string databaseProvider)
{
string connectionString;
string appSettingsConnection;
string providerName = "System.Data.SqlClient";
if(databaseProvider.ToLower().Contains("mysql"))
{
providerName = "MySql.Data.MySqlClient";
connectionString = string.Format("Server={0}; Database={1};Uid={2};Pwd={3}", server, databaseName, user, password);
appSettingsConnection = connectionString;
}
else if(databaseProvider.ToLower().Contains("azure"))
{
connectionString = string.Format("Server=tcp:{0}.database.windows.net;Database={1};User ID={2}@{0};Password={3}", server, databaseName, user, password);
appSettingsConnection = connectionString;
}
else
{
connectionString = string.Format("server={0};database={1};user id={2};password={3}", server, databaseName, user, password);
appSettingsConnection = connectionString;
}
SaveConnectionString(connectionString, appSettingsConnection, providerName);
Initialize(providerName);
}
/// <summary>
/// Saves the connection string as a proper .net ConnectionString and the legacy AppSettings key/value.
/// </summary>
/// <remarks>
/// Saves the ConnectionString in the very nasty 'medium trust'-supportive way.
/// </remarks>
/// <param name="connectionString"></param>
/// <param name="appSettingsConnection"></param>
/// <param name="providerName"></param>
private void SaveConnectionString(string connectionString, string appSettingsConnection, string providerName)
{
//Set the connection string for the new datalayer
var connectionStringSettings = string.IsNullOrEmpty(providerName)
? new ConnectionStringSettings(GlobalSettings.UmbracoConnectionName,
connectionString)
: new ConnectionStringSettings(GlobalSettings.UmbracoConnectionName,
connectionString, providerName);
_connectionString = connectionString;
_providerName = providerName;
//Set the connection string in appsettings used in the legacy datalayer
GlobalSettings.DbDsn = appSettingsConnection;
var webConfig = new WebConfigurationFileMap();
var vDir = GlobalSettings.FullpathToRoot;
foreach (VirtualDirectoryMapping v in webConfig.VirtualDirectories)
{
if (v.IsAppRoot)
{
vDir = v.PhysicalDirectory;
}
}
string fileName = String.Concat(vDir, "web.config");
var xml = XDocument.Load(fileName);
var connectionstrings = xml.Root.Descendants("connectionStrings").Single();
// Update connectionString if it exists, or else create a new appSetting for the given key and value
var setting = connectionstrings.Descendants("add").FirstOrDefault(s => s.Attribute("name").Value == GlobalSettings.UmbracoConnectionName);
if (setting == null)
connectionstrings.Add(new XElement("add",
new XAttribute("name", GlobalSettings.UmbracoConnectionName),
new XAttribute("connectionString", connectionStringSettings),
new XAttribute("providerName", providerName)));
else
{
setting.Attribute("connectionString").Value = connectionString;
}
xml.Save(fileName);
LogHelper.Info<DatabaseContext>("Configured new ConnectionString: " + connectionString);
}
/// <summary>
/// Internal method to initialize the database configuration.
/// </summary>
/// <remarks>
/// If an Umbraco connectionstring exists the database can be configured on app startup,
/// but if its a new install the entry doesn't exist and the db cannot be configured.
/// So for new installs the Initialize() method should be called after the connectionstring
/// has been added to the web.config.
/// </remarks>
internal void Initialize()
{
if (ConfigurationManager.ConnectionStrings[GlobalSettings.UmbracoConnectionName] != null)
{
var providerName = "System.Data.SqlClient";
if (!string.IsNullOrEmpty(ConfigurationManager.ConnectionStrings[GlobalSettings.UmbracoConnectionName].ProviderName))
{
providerName = ConfigurationManager.ConnectionStrings[GlobalSettings.UmbracoConnectionName].ProviderName;
_connectionString =
ConfigurationManager.ConnectionStrings[GlobalSettings.UmbracoConnectionName].ConnectionString;
}
if (providerName.StartsWith("MySql"))
{
SyntaxConfig.SqlSyntaxProvider = MySqlSyntax.Provider;
}
else if (providerName.Contains("SqlServerCe"))
{
SyntaxConfig.SqlSyntaxProvider = SqlCeSyntax.Provider;
}
else
{
SyntaxConfig.SqlSyntaxProvider = SqlServerSyntax.Provider;
}
_configured = true;
}
else
{
_configured = false;
}
}
internal void Initialize(string providerName)
{
if (providerName.StartsWith("MySql"))
{
SyntaxConfig.SqlSyntaxProvider = MySqlSyntax.Provider;
}
else if (providerName.Contains("SqlServerCe"))
{
SyntaxConfig.SqlSyntaxProvider = SqlCeSyntax.Provider;
}
else
{
SyntaxConfig.SqlSyntaxProvider = SqlServerSyntax.Provider;
}
_configured = true;
}
internal Result CreateDatabaseSchemaAndData()
{
if (_configured == false || (string.IsNullOrEmpty(_connectionString) || string.IsNullOrEmpty(ProviderName)))
{
return new Result{Message = "Database configuration is invalid", Success = false, Percentage = "10"};
}
try
{
var database = new Database(_connectionString, ProviderName);
database.CreateDatabaseSchema();
return new Result { Message = "Installation completed!", Success = true, Percentage = "100" };
}
catch (Exception ex)
{
return new Result { Message = ex.Message, Success = false, Percentage = "90" };
}
}
internal class Result
{
public string Message { get; set; }
public bool Success { get; set; }
public string Percentage { get; set; }
}
}
}