Files
Umbraco-CMS/src/Umbraco.Core/DatabaseContext.cs

779 lines
38 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 Semver;
using Umbraco.Core.Configuration;
using Umbraco.Core.IO;
using Umbraco.Core.Logging;
using Umbraco.Core.Persistence;
using Umbraco.Core.Persistence.Migrations;
using Umbraco.Core.Persistence.Migrations.Initial;
using Umbraco.Core.Persistence.SqlSyntax;
using Umbraco.Core.Services;
namespace Umbraco.Core
{
/// <summary>
/// The Umbraco Database context
/// </summary>
/// <remarks>
/// One per AppDomain, represents the Umbraco database
/// </remarks>
public class DatabaseContext
{
private readonly IDatabaseFactory _factory;
private readonly ILogger _logger;
private readonly SqlSyntaxProviders _syntaxProviders;
private bool _configured;
private readonly object _locker = new object();
private string _connectionString;
private string _providerName;
private DatabaseSchemaResult _result;
private DateTime? _connectionLastChecked = null;
/// <summary>
/// The number of minutes to throttle the checks to CanConnect
/// </summary>
private const int ConnectionCheckMinutes = 1;
[Obsolete("Use the constructor specifying all dependencies instead")]
public DatabaseContext(IDatabaseFactory factory)
: this(factory, LoggerResolver.Current.Logger, new SqlSyntaxProviders(new ISqlSyntaxProvider[]
{
new MySqlSyntaxProvider(LoggerResolver.Current.Logger),
new SqlCeSyntaxProvider(),
new SqlServerSyntaxProvider()
}))
{
}
/// <summary>
/// Default constructor
/// </summary>
/// <param name="factory"></param>
/// <param name="logger"></param>
/// <param name="syntaxProviders"></param>
public DatabaseContext(IDatabaseFactory factory, ILogger logger, SqlSyntaxProviders syntaxProviders)
{
if (factory == null) throw new ArgumentNullException("factory");
if (logger == null) throw new ArgumentNullException("logger");
if (syntaxProviders == null) throw new ArgumentNullException("syntaxProviders");
_factory = factory;
_logger = logger;
_syntaxProviders = syntaxProviders;
}
/// <summary>
/// Create a configured DatabaseContext
/// </summary>
/// <param name="factory"></param>
/// <param name="logger"></param>
/// <param name="sqlSyntax"></param>
/// <param name="providerName"></param>
public DatabaseContext(IDatabaseFactory factory, ILogger logger, ISqlSyntaxProvider sqlSyntax, string providerName)
{
_providerName = providerName;
SqlSyntax = sqlSyntax;
SqlSyntaxContext.SqlSyntaxProvider = SqlSyntax;
_factory = factory;
_logger = logger;
_configured = true;
}
public ISqlSyntaxProvider SqlSyntax { get; private set; }
/// <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 virtual UmbracoDatabase Database
{
get { return _factory.CreateDatabase(); }
}
/// <summary>
/// Boolean indicating whether the database has been configured
/// </summary>
public virtual bool IsDatabaseConfigured
{
get { return _configured; }
}
/// <summary>
/// Determines if the db can be connected to
/// </summary>
public virtual bool CanConnect
{
get
{
if (IsDatabaseConfigured == false)
return false;
//Don't check again if the timeout period hasn't elapsed
//this ensures we don't keep checking the connection too many times in a row like during startup.
//Do check if the _connectionLastChecked is null which means we're just initializing or it could
//not connect last time it was checked.
if ((_connectionLastChecked.HasValue && (DateTime.Now - _connectionLastChecked.Value).TotalMinutes > ConnectionCheckMinutes)
|| _connectionLastChecked.HasValue == false)
{
var canConnect = DbConnectionExtensions.IsConnectionAvailable(ConnectionString, DatabaseProvider);
LogHelper.Info<DatabaseContext>("CanConnect = " + canConnect);
_connectionLastChecked = canConnect == false ? null : (DateTime?) DateTime.Now;
return canConnect;
}
return _connectionLastChecked.HasValue;
}
}
/// <summary>
/// Gets the configured umbraco db connection string.
/// </summary>
public virtual 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 = Constants.DatabaseProviders.SqlServer;
if (ConfigurationManager.ConnectionStrings[GlobalSettings.UmbracoConnectionName] != null)
{
if (string.IsNullOrEmpty(ConfigurationManager.ConnectionStrings[GlobalSettings.UmbracoConnectionName].ProviderName) == false)
_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 virtual 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 ConfigureEmbeddedDatabaseConnection()
{
const string providerName = Constants.DatabaseProviders.SqlCe;
var connectionString = GetEmbeddedDatabaseConnectionString();
SaveConnectionString(connectionString, providerName);
var path = Path.Combine(GlobalSettings.FullpathToRoot, "App_Data", "Umbraco.sdf");
if (File.Exists(path) == false)
{
var engine = new SqlCeEngine(connectionString);
engine.CreateDatabase();
// SD: Pretty sure this should be in a using clause but i don't want to cause unknown side-effects here
// since it's been like this for quite some time
//using (var engine = new SqlCeEngine(connectionString))
//{
// engine.CreateDatabase();
//}
}
Initialize(providerName);
}
public string GetEmbeddedDatabaseConnectionString()
{
return @"Data Source=|DataDirectory|\Umbraco.sdf;Flush Interval=1;";
}
/// <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)
{
var provider = DbConnectionExtensions.DetectProviderFromConnectionString(connectionString);
var databaseProvider = provider.ToString();
var providerName = Constants.DatabaseProviders.SqlServer;
if (databaseProvider.ToLower().Contains("mysql"))
{
providerName = Constants.DatabaseProviders.MySql;
}
SaveConnectionString(connectionString, providerName);
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 providerName;
var connectionString = GetDatabaseConnectionString(server, databaseName, user, password, databaseProvider, out providerName);
SaveConnectionString(connectionString, providerName);
Initialize(providerName);
}
public string GetDatabaseConnectionString(string server, string databaseName, string user, string password, string databaseProvider, out string providerName)
{
providerName = Constants.DatabaseProviders.SqlServer;
if (databaseProvider.ToLower().Contains("mysql"))
{
providerName = Constants.DatabaseProviders.MySql;
return string.Format("Server={0}; Database={1};Uid={2};Pwd={3}", server, databaseName, user, password);
}
if (databaseProvider.ToLower().Contains("azure"))
{
return BuildAzureConnectionString(server, databaseName, user, password);
}
return string.Format("server={0};database={1};user id={2};password={3}", server, databaseName, user, password);
}
/// <summary>
/// Configures a ConnectionString for the Umbraco database that uses Microsoft SQL Server integrated security.
/// </summary>
/// <param name="server">Name or address of the database server</param>
/// <param name="databaseName">Name of the database</param>
public void ConfigureIntegratedSecurityDatabaseConnection(string server, string databaseName)
{
const string providerName = Constants.DatabaseProviders.SqlServer;
var connectionString = GetIntegratedSecurityDatabaseConnectionString(server, databaseName);
SaveConnectionString(connectionString, providerName);
Initialize(providerName);
}
public string GetIntegratedSecurityDatabaseConnectionString(string server, string databaseName)
{
return String.Format("Server={0};Database={1};Integrated Security=true", server, databaseName);
}
internal string BuildAzureConnectionString(string server, string databaseName, string user, string password)
{
if (server.Contains(".") && ServerStartsWithTcp(server) == false)
server = string.Format("tcp:{0}", server);
if (server.Contains(".") == false && ServerStartsWithTcp(server))
{
string serverName = server.Contains(",")
? server.Substring(0, server.IndexOf(",", StringComparison.Ordinal))
: server;
var portAddition = string.Empty;
if (server.Contains(","))
portAddition = server.Substring(server.IndexOf(",", StringComparison.Ordinal));
server = string.Format("{0}.database.windows.net{1}", serverName, portAddition);
}
if (ServerStartsWithTcp(server) == false)
server = string.Format("tcp:{0}.database.windows.net", server);
if (server.Contains(",") == false)
server = string.Format("{0},1433", server);
if (user.Contains("@") == false)
{
var userDomain = server;
if (ServerStartsWithTcp(server))
userDomain = userDomain.Substring(userDomain.IndexOf(":", StringComparison.Ordinal) + 1);
if (userDomain.Contains("."))
userDomain = userDomain.Substring(0, userDomain.IndexOf(".", StringComparison.Ordinal));
user = string.Format("{0}@{1}", user, userDomain);
}
return string.Format("Server={0};Database={1};User ID={2};Password={3}", server, databaseName, user, password);
}
private static bool ServerStartsWithTcp(string server)
{
return server.ToLower().StartsWith("tcp:".ToLower());
}
/// <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="providerName"></param>
private void SaveConnectionString(string connectionString, 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;
var fileName = IOHelper.MapPath(string.Format("{0}/web.config", SystemDirectories.Root));
var xml = XDocument.Load(fileName, LoadOptions.PreserveWhitespace);
var connectionstrings = xml.Root.DescendantsAndSelf("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;
setting.Attribute("providerName").Value = providerName;
}
xml.Save(fileName, SaveOptions.DisableFormatting);
_logger.Info<DatabaseContext>("Configured a new ConnectionString using the '" + providerName + "' provider.");
}
/// <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()
{
var databaseSettings = ConfigurationManager.ConnectionStrings[GlobalSettings.UmbracoConnectionName];
if (databaseSettings != null && string.IsNullOrWhiteSpace(databaseSettings.ConnectionString) == false && string.IsNullOrWhiteSpace(databaseSettings.ProviderName) == false)
{
var providerName = Constants.DatabaseProviders.SqlServer;
string connString = null;
if (!string.IsNullOrEmpty(ConfigurationManager.ConnectionStrings[GlobalSettings.UmbracoConnectionName].ProviderName))
{
providerName = ConfigurationManager.ConnectionStrings[GlobalSettings.UmbracoConnectionName].ProviderName;
connString = ConfigurationManager.ConnectionStrings[GlobalSettings.UmbracoConnectionName].ConnectionString;
}
Initialize(providerName, connString);
}
else if (ConfigurationManager.AppSettings.ContainsKey(GlobalSettings.UmbracoConnectionName) && string.IsNullOrEmpty(ConfigurationManager.AppSettings[GlobalSettings.UmbracoConnectionName]) == false)
{
//A valid connectionstring does not exist, but the legacy appSettings key was found, so we'll reconfigure the conn.string.
var legacyConnString = ConfigurationManager.AppSettings[GlobalSettings.UmbracoConnectionName];
if (legacyConnString.ToLowerInvariant().Contains("sqlce4umbraco"))
{
ConfigureEmbeddedDatabaseConnection();
}
else if (legacyConnString.ToLowerInvariant().Contains("tcp:"))
{
//Must be sql azure
SaveConnectionString(legacyConnString, Constants.DatabaseProviders.SqlServer);
Initialize(Constants.DatabaseProviders.SqlServer);
}
else if (legacyConnString.ToLowerInvariant().Contains("datalayer=mysql"))
{
//Must be MySql
//Need to strip the datalayer part off
var connectionStringWithoutDatalayer = string.Empty;
foreach (var variable in legacyConnString.Split(';').Where(x => x.ToLowerInvariant().StartsWith("datalayer") == false))
connectionStringWithoutDatalayer = string.Format("{0}{1};", connectionStringWithoutDatalayer, variable);
SaveConnectionString(connectionStringWithoutDatalayer, Constants.DatabaseProviders.MySql);
Initialize(Constants.DatabaseProviders.MySql);
}
else
{
//Must be sql
SaveConnectionString(legacyConnString, Constants.DatabaseProviders.SqlServer);
Initialize(Constants.DatabaseProviders.SqlServer);
}
//Remove the legacy connection string, so we don't end up in a loop if something goes wrong.
GlobalSettings.RemoveSetting(GlobalSettings.UmbracoConnectionName);
}
else
{
_configured = false;
}
}
internal void Initialize(string providerName)
{
//only configure once!
if (_configured == true) return;
_providerName = providerName;
try
{
if (_syntaxProviders != null)
{
SqlSyntax = _syntaxProviders.GetByProviderNameOrDefault(providerName);
}
else if (SqlSyntax == null)
{
throw new InvalidOperationException("No " + typeof(ISqlSyntaxProvider) + " specified or no " + typeof(SqlSyntaxProviders) + " instance specified");
}
SqlSyntaxContext.SqlSyntaxProvider = SqlSyntax;
_configured = true;
}
catch (Exception e)
{
_configured = false;
_logger.Info<DatabaseContext>("Initialization of the DatabaseContext failed with following error: " + e.Message);
_logger.Info<DatabaseContext>(e.StackTrace);
}
}
internal void Initialize(string providerName, string connectionString)
{
_connectionString = connectionString;
Initialize(providerName);
}
internal DatabaseSchemaResult ValidateDatabaseSchema()
{
if (_configured == false || (string.IsNullOrEmpty(_connectionString) || string.IsNullOrEmpty(ProviderName)))
return new DatabaseSchemaResult();
if (_result == null)
{
if (SystemUtilities.GetCurrentTrustLevel() != AspNetHostingPermissionLevel.Unrestricted
&& ProviderName == Constants.DatabaseProviders.MySql)
{
throw new InvalidOperationException("Cannot use MySql in Medium Trust configuration");
}
var database = new UmbracoDatabase(_connectionString, ProviderName, _logger);
var dbSchema = new DatabaseSchemaCreation(database, _logger, SqlSyntax);
_result = dbSchema.ValidateSchema();
}
return _result;
}
internal Result CreateDatabaseSchemaAndData(ApplicationContext applicationContext)
{
try
{
var readyForInstall = CheckReadyForInstall();
if (readyForInstall.Success == false)
{
return readyForInstall.Result;
}
_logger.Info<DatabaseContext>("Database configuration status: Started");
string message;
var database = new UmbracoDatabase(_connectionString, ProviderName, _logger);
// If MySQL, we're going to ensure that database calls are maintaining proper casing as to remove the necessity for checks
// for case insensitive queries. In an ideal situation (which is what we're striving for), all calls would be case sensitive.
/*
var supportsCaseInsensitiveQueries = SqlSyntax.SupportsCaseInsensitiveQueries(database);
if (supportsCaseInsensitiveQueries == false)
{
message = "<p>&nbsp;</p><p>The database you're trying to use does not support case insensitive queries. <br />We currently do not support these types of databases.</p>" +
"<p>You can fix this by changing the following setting in your my.ini file in your MySQL installation directory:</p>" +
"<pre>lower_case_table_names=1</pre><br />" +
"<p>Note: Make sure to check with your hosting provider if they support case insensitive queries as well.</p>" +
"<p>For more technical information on case sensitivity in MySQL, have a look at " +
"<a href='http://dev.mysql.com/doc/refman/5.0/en/identifier-case-sensitivity.html'>the documentation on the subject</a></p>";
return new Result { Message = message, Success = false, Percentage = "15" };
}
*/
message = GetResultMessageForMySql();
var schemaResult = ValidateDatabaseSchema();
var installedSchemaVersion = schemaResult.DetermineInstalledVersion();
//If Configuration Status is empty and the determined version is "empty" its a new install - otherwise upgrade the existing
if (string.IsNullOrEmpty(GlobalSettings.ConfigurationStatus) && installedSchemaVersion.Equals(new Version(0, 0, 0)))
{
var helper = new DatabaseSchemaHelper(database, _logger, SqlSyntax);
helper.CreateDatabaseSchema(true, applicationContext);
message = message + "<p>Installation completed!</p>";
//now that everything is done, we need to determine the version of SQL server that is executing
_logger.Info<DatabaseContext>("Database configuration status: " + message);
return new Result { Message = message, Success = true, Percentage = "100" };
}
//we need to do an upgrade so return a new status message and it will need to be done during the next step
_logger.Info<DatabaseContext>("Database requires upgrade");
message = "<p>Upgrading database, this may take some time...</p>";
return new Result
{
RequiresUpgrade = true,
Message = message,
Success = true,
Percentage = "30"
};
}
catch (Exception ex)
{
return HandleInstallException(ex);
}
}
/// <summary>
/// This assumes all of the previous checks are done!
/// </summary>
/// <returns></returns>
internal Result UpgradeSchemaAndData(IMigrationEntryService migrationEntryService)
{
try
{
var readyForInstall = CheckReadyForInstall();
if (readyForInstall.Success == false)
{
return readyForInstall.Result;
}
_logger.Info<DatabaseContext>("Database upgrade started");
var database = new UmbracoDatabase(_connectionString, ProviderName, _logger);
//var supportsCaseInsensitiveQueries = SqlSyntax.SupportsCaseInsensitiveQueries(database);
var message = GetResultMessageForMySql();
var schemaResult = ValidateDatabaseSchema();
var installedSchemaVersion = new SemVersion(schemaResult.DetermineInstalledVersion());
var installedMigrationVersion = schemaResult.DetermineInstalledVersionByMigrations(migrationEntryService);
var targetVersion = UmbracoVersion.Current;
//In some cases - like upgrading from 7.2.6 -> 7.3, there will be no migration information in the database and therefore it will
// return a version of 0.0.0 and we don't necessarily want to run all migrations from 0 -> 7.3, so we'll just ensure that the
// migrations are run for the target version
if (installedMigrationVersion == new SemVersion(new Version(0, 0, 0)) && installedSchemaVersion > new SemVersion(new Version(0, 0, 0)))
{
//set the installedMigrationVersion to be one less than the target so the latest migrations are guaranteed to execute
installedMigrationVersion = new SemVersion(targetVersion.SubtractRevision());
}
//Figure out what our current installed version is. If the web.config doesn't have a version listed, then we'll use the minimum
// version detected between the schema installed and the migrations listed in the migration table.
// If there is a version in the web.config, we'll take the minimum between the listed migration in the db and what
// is declared in the web.config.
var currentInstalledVersion = string.IsNullOrEmpty(GlobalSettings.ConfigurationStatus)
//Take the minimum version between the detected schema version and the installed migration version
? new[] {installedSchemaVersion, installedMigrationVersion}.Min()
//Take the minimum version between the installed migration version and the version specified in the config
: new[] { SemVersion.Parse(GlobalSettings.ConfigurationStatus), installedMigrationVersion }.Min();
//Ok, another edge case here. If the current version is a pre-release,
// then we want to ensure all migrations for the current release are executed.
if (currentInstalledVersion.Prerelease.IsNullOrWhiteSpace() == false)
{
currentInstalledVersion = new SemVersion(currentInstalledVersion.GetVersion().SubtractRevision());
}
//DO the upgrade!
var runner = new MigrationRunner(migrationEntryService, _logger, currentInstalledVersion, UmbracoVersion.GetSemanticVersion(), GlobalSettings.UmbracoMigrationName);
var upgraded = runner.Execute(database, true);
if (upgraded == false)
{
throw new ApplicationException("Upgrading failed, either an error occurred during the upgrade process or an event canceled the upgrade process, see log for full details");
}
message = message + "<p>Upgrade completed!</p>";
//now that everything is done, we need to determine the version of SQL server that is executing
_logger.Info<DatabaseContext>("Database configuration status: " + message);
return new Result { Message = message, Success = true, Percentage = "100" };
}
catch (Exception ex)
{
return HandleInstallException(ex);
}
}
private string GetResultMessageForMySql()
{
if (SqlSyntax.GetType() == typeof(MySqlSyntaxProvider))
{
return "<p>&nbsp;</p><p>Congratulations, the database step ran successfully!</p>" +
"<p>Note: You're using MySQL and the database instance you're connecting to seems to support case insensitive queries.</p>" +
"<p>However, your hosting provider may not support this option. Umbraco does not currently support MySQL installs that do not support case insensitive queries</p>" +
"<p>Make sure to check with your hosting provider if they support case insensitive queries as well.</p>" +
"<p>They can check this by looking for the following setting in the my.ini file in their MySQL installation directory:</p>" +
"<pre>lower_case_table_names=1</pre><br />" +
"<p>For more technical information on case sensitivity in MySQL, have a look at " +
"<a href='http://dev.mysql.com/doc/refman/5.0/en/identifier-case-sensitivity.html'>the documentation on the subject</a></p>";
}
return string.Empty;
}
/*
private string GetResultMessageForMySql(bool? supportsCaseInsensitiveQueries)
{
if (supportsCaseInsensitiveQueries == null)
{
return "<p>&nbsp;</p><p>Warning! Could not check if your database type supports case insensitive queries. <br />We currently do not support these databases that do not support case insensitive queries.</p>" +
"<p>You can check this by looking for the following setting in your my.ini file in your MySQL installation directory:</p>" +
"<pre>lower_case_table_names=1</pre><br />" +
"<p>Note: Make sure to check with your hosting provider if they support case insensitive queries as well.</p>" +
"<p>For more technical information on case sensitivity in MySQL, have a look at " +
"<a href='http://dev.mysql.com/doc/refman/5.0/en/identifier-case-sensitivity.html'>the documentation on the subject</a></p>";
}
if (SqlSyntax.GetType() == typeof(MySqlSyntaxProvider))
{
return "<p>&nbsp;</p><p>Congratulations, the database step ran successfully!</p>" +
"<p>Note: You're using MySQL and the database instance you're connecting to seems to support case insensitive queries.</p>" +
"<p>However, your hosting provider may not support this option. Umbraco does not currently support MySQL installs that do not support case insensitive queries</p>" +
"<p>Make sure to check with your hosting provider if they support case insensitive queries as well.</p>" +
"<p>They can check this by looking for the following setting in the my.ini file in their MySQL installation directory:</p>" +
"<pre>lower_case_table_names=1</pre><br />" +
"<p>For more technical information on case sensitivity in MySQL, have a look at " +
"<a href='http://dev.mysql.com/doc/refman/5.0/en/identifier-case-sensitivity.html'>the documentation on the subject</a></p>";
}
return string.Empty;
}*/
private Attempt<Result> CheckReadyForInstall()
{
if (SystemUtilities.GetCurrentTrustLevel() != AspNetHostingPermissionLevel.Unrestricted
&& ProviderName == Constants.DatabaseProviders.MySql)
{
throw new InvalidOperationException("Cannot use MySql in Medium Trust configuration");
}
if (_configured == false || (string.IsNullOrEmpty(_connectionString) || string.IsNullOrEmpty(ProviderName)))
{
return Attempt.Fail(new Result
{
Message =
"Database configuration is invalid. Please check that the entered database exists and that the provided username and password has write access to the database.",
Success = false,
Percentage = "10"
});
}
return Attempt<Result>.Succeed();
}
private Result HandleInstallException(Exception ex)
{
_logger.Error<DatabaseContext>("Database configuration failed", ex);
if (_result != null)
{
_logger.Info<DatabaseContext>("The database schema validation produced the following summary: \n" + _result.GetSummary());
}
return new Result
{
Message =
"The database configuration failed with the following message: " + ex.Message +
"\n Please check log file for additional information (can be found in '/App_Data/Logs/UmbracoTraceLog.txt')",
Success = false,
Percentage = "90"
};
}
internal class Result
{
public bool RequiresUpgrade { get; set; }
public string Message { get; set; }
public bool Success { get; set; }
public string Percentage { get; set; }
}
internal bool IsConnectionStringConfigured(ConnectionStringSettings databaseSettings)
{
var dbIsSqlCe = false;
if (databaseSettings != null && databaseSettings.ProviderName != null)
dbIsSqlCe = databaseSettings.ProviderName == Constants.DatabaseProviders.SqlCe;
var sqlCeDatabaseExists = false;
if (dbIsSqlCe)
{
var parts = databaseSettings.ConnectionString.Split(new[] { ';' }, StringSplitOptions.RemoveEmptyEntries);
var dataSourcePart = parts.FirstOrDefault(x => x.InvariantStartsWith("Data Source="));
if (dataSourcePart != null)
{
var datasource = dataSourcePart.Replace("|DataDirectory|", AppDomain.CurrentDomain.GetData("DataDirectory").ToString());
var filePath = datasource.Replace("Data Source=", string.Empty);
sqlCeDatabaseExists = File.Exists(filePath);
}
}
// Either the connection details are not fully specified or it's a SQL CE database that doesn't exist yet
if (databaseSettings == null
|| string.IsNullOrWhiteSpace(databaseSettings.ConnectionString) || string.IsNullOrWhiteSpace(databaseSettings.ProviderName)
|| (dbIsSqlCe && sqlCeDatabaseExists == false))
{
return false;
}
return true;
}
}
}