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namespace OAuthServiceProvider.Code {
using System;
using System.Linq;
using System.ServiceModel;
using System.Text;
using System.Web;
using DotNetOpenAuth.OAuth.Messages;
/// <summary>
/// The web application global events and properties.
/// </summary>
public class Global : HttpApplication {
/// <summary>
/// An application memory cache of recent log messages.
/// </summary>
public static StringBuilder LogMessages = new StringBuilder();
/// <summary>
/// The logger for this sample to use.
/// </summary>
public static log4net.ILog Logger = log4net.LogManager.GetLogger("DotNetOpenAuth.OAuthServiceProvider");
/// <summary>
/// Gets the transaction-protected database connection for the current request.
/// </summary>
public static DataClassesDataContext DataContext {
get {
DataClassesDataContext dataContext = dataContextSimple;
if (dataContext == null) {
dataContext = new DataClassesDataContext();
dataContext.Connection.Open();
dataContext.Transaction = dataContext.Connection.BeginTransaction();
dataContextSimple = dataContext;
}
return dataContext;
}
}
public static DatabaseTokenManager TokenManager { get; set; }
public static DatabaseNonceStore NonceStore { get; set; }
public static User LoggedInUser {
get { return Global.DataContext.Users.SingleOrDefault(user => user.OpenIDClaimedIdentifier == HttpContext.Current.User.Identity.Name); }
}
public static UserAuthorizationRequest PendingOAuthAuthorization {
get { return HttpContext.Current.Session["authrequest"] as UserAuthorizationRequest; }
set { HttpContext.Current.Session["authrequest"] = value; }
}
private static DataClassesDataContext dataContextSimple {
get {
if (HttpContext.Current != null) {
return HttpContext.Current.Items["DataContext"] as DataClassesDataContext;
} else if (OperationContext.Current != null) {
object data;
if (OperationContext.Current.IncomingMessageProperties.TryGetValue("DataContext", out data)) {
return data as DataClassesDataContext;
} else {
return null;
}
} else {
throw new InvalidOperationException();
}
}
set {
if (HttpContext.Current != null) {
HttpContext.Current.Items["DataContext"] = value;
} else if (OperationContext.Current != null) {
OperationContext.Current.IncomingMessageProperties["DataContext"] = value;
} else {
throw new InvalidOperationException();
}
}
}
public static void AuthorizePendingRequestToken() {
ITokenContainingMessage tokenMessage = PendingOAuthAuthorization;
TokenManager.AuthorizeRequestToken(tokenMessage.Token, LoggedInUser);
PendingOAuthAuthorization = null;
}
private static void CommitAndCloseDatabaseIfNecessary() {
var dataContext = dataContextSimple;
if (dataContext != null) {
dataContext.SubmitChanges();
dataContext.Transaction.Commit();
dataContext.Connection.Close();
}
}
private void Application_Start(object sender, EventArgs e) {
log4net.Config.XmlConfigurator.Configure();
Logger.Info("Sample starting...");
string appPath = HttpContext.Current.Request.ApplicationPath;
if (!appPath.EndsWith("/")) {
appPath += "/";
}
// This will break in IIS Integrated Pipeline mode, since applications
// start before the first incoming request context is available.
// TODO: fix this.
Constants.WebRootUrl = new Uri(HttpContext.Current.Request.Url, appPath);
Global.TokenManager = new DatabaseTokenManager();
Global.NonceStore = new DatabaseNonceStore();
}
private void Application_End(object sender, EventArgs e) {
Logger.Info("Sample shutting down...");
// this would be automatic, but in partial trust scenarios it is not.
log4net.LogManager.Shutdown();
}
private void Application_Error(object sender, EventArgs e) {
Logger.Error("An unhandled exception occurred in ASP.NET processing: " + Server.GetLastError(), Server.GetLastError());
}
private void Application_EndRequest(object sender, EventArgs e) {
CommitAndCloseDatabaseIfNecessary();
}
}
}
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