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//-----------------------------------------------------------------------
// <copyright file="Global.asax.cs" company="Andrew Arnott">
// Copyright (c) Andrew Arnott. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
namespace WebFormsRelyingParty {
using System;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.ServiceModel;
using System.Web;
public class Global : System.Web.HttpApplication {
private const string DataContextKey = "DataContext";
private const string DataContextTransactionKey = "DataContextTransaction";
/// <summary>
/// The logger for this sample to use.
/// </summary>
private static log4net.ILog logger = log4net.LogManager.GetLogger("DotNetOpenAuth.ConsumerSample");
public static log4net.ILog Logger {
get { return logger; }
}
public static User LoggedInUser {
get { return Global.DataContext.AuthenticationToken.Where(token => token.ClaimedIdentifier == HttpContext.Current.User.Identity.Name).Select(token => token.User).FirstOrDefault(); }
}
public static string ApplicationPath {
get {
string path = HttpContext.Current.Request.ApplicationPath;
if (!path.EndsWith("/")) {
path += "/";
}
return path;
}
}
/// <summary>
/// Gets the transaction-protected database connection for the current request.
/// </summary>
public static DatabaseEntities DataContext {
get {
DatabaseEntities dataContext = DataContextSimple;
if (dataContext == null) {
dataContext = new DatabaseEntities();
try {
dataContext.Connection.Open();
} catch (EntityException entityEx) {
var sqlEx = entityEx.InnerException as SqlException;
if (sqlEx != null) {
if (sqlEx.Class == 14 && sqlEx.Number == 15350) {
// Most likely the database schema hasn't been created yet.
HttpContext.Current.Response.Redirect("~/Setup.aspx");
}
}
throw;
}
DataContextTransactionSimple = dataContext.Connection.BeginTransaction();
DataContextSimple = dataContext;
}
return dataContext;
}
}
private static DatabaseEntities DataContextSimple {
get {
if (HttpContext.Current != null) {
return HttpContext.Current.Items[DataContextKey] as DatabaseEntities;
} else if (OperationContext.Current != null) {
object data;
if (OperationContext.Current.IncomingMessageProperties.TryGetValue(DataContextKey, out data)) {
return data as DatabaseEntities;
} else {
return null;
}
} else {
throw new InvalidOperationException();
}
}
set {
if (HttpContext.Current != null) {
HttpContext.Current.Items[DataContextKey] = value;
} else if (OperationContext.Current != null) {
OperationContext.Current.IncomingMessageProperties[DataContextKey] = value;
} else {
throw new InvalidOperationException();
}
}
}
private static IDbTransaction DataContextTransactionSimple {
get {
if (HttpContext.Current != null) {
return HttpContext.Current.Items[DataContextTransactionKey] as IDbTransaction;
} else if (OperationContext.Current != null) {
object data;
if (OperationContext.Current.IncomingMessageProperties.TryGetValue(DataContextTransactionKey, out data)) {
return data as IDbTransaction;
} else {
return null;
}
} else {
throw new InvalidOperationException();
}
}
set {
if (HttpContext.Current != null) {
HttpContext.Current.Items[DataContextTransactionKey] = value;
} else if (OperationContext.Current != null) {
OperationContext.Current.IncomingMessageProperties[DataContextTransactionKey] = value;
} else {
throw new InvalidOperationException();
}
}
}
protected void Application_Start(object sender, EventArgs e) {
log4net.Config.XmlConfigurator.Configure();
Logger.Info("Web application starting...");
}
protected void Session_Start(object sender, EventArgs e) {
}
protected void Application_BeginRequest(object sender, EventArgs e) {
}
protected void Application_EndRequest(object sender, EventArgs e) {
CommitAndCloseDatabaseIfNecessary();
}
protected void Application_AuthenticateRequest(object sender, EventArgs e) {
}
protected void Application_Error(object sender, EventArgs e) {
Logger.Error("An unhandled exception occurred in ASP.NET processing: " + Server.GetLastError(), Server.GetLastError());
if (DataContextTransactionSimple != null) {
DataContextTransactionSimple.Rollback();
DataContextTransactionSimple.Dispose();
}
}
protected void Session_End(object sender, EventArgs e) {
}
protected void Application_End(object sender, EventArgs e) {
Logger.Info("Web application shutting down...");
// this would be automatic, but in partial trust scenarios it is not.
log4net.LogManager.Shutdown();
}
private static void CommitAndCloseDatabaseIfNecessary() {
var dataContext = DataContextSimple;
if (dataContext != null) {
dataContext.SaveChanges();
if (DataContextTransactionSimple != null) {
DataContextTransactionSimple.Commit();
DataContextTransactionSimple.Dispose();
}
dataContext.Dispose();
DataContextSimple = null;
}
}
}
}
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