/// <summary>
/// Handles the request
/// </summary>
/// <returns>The awaitable task.</returns>
/// <param name="context">The requests context.</param>
public async Task <bool> HandleAsync(IHttpContext context)
{
var xsrf = context.Request.Headers[XSRFHeaderName] ?? context.Request.Cookies[XSRFCookieName];
var cookie = context.Request.Cookies[AuthSessionCookieName];
SessionRecord session = null;
if (!string.IsNullOrWhiteSpace(xsrf))
{
session = await ShortTermStorage.GetSessionFromXSRFAsync(xsrf);
if (Utility.IsNullOrExpired(session))
{
session = null;
}
else
{
await RefreshSessionTokensAsync(context, session);
}
}
if (session == null && !string.IsNullOrWhiteSpace(cookie))
{
session = await ShortTermStorage.GetSessionFromCookieAsync(cookie);
if (Utility.IsNullOrExpired(session))
{
session = null;
}
else
{
await RefreshSessionTokensAsync(context, session);
}
}
// Check that we have not already set the XSRF cookie
if (context.Response.Cookies.FirstOrDefault(x => x.Name == XSRFCookieName) == null)
{
if (session == null)
{
session = new SessionRecord()
{
XSRFToken = PRNG.GetRandomString(32),
Expires = DateTime.Now.AddSeconds(ShortTermExpirationSeconds)
};
await ShortTermStorage.AddSessionAsync(session);
}
// If the connection is using SSL, require SSL for the cookie
var usingssl = context.Request.SslProtocol != System.Security.Authentication.SslProtocols.None;
context.Response.AddCookie(XSRFCookieName, session.XSRFToken, expires: session.Expires, httponly: false, secure: usingssl);
}
return(false);
}
/// <summary>
/// Handles the request
/// </summary>
/// <returns>The awaitable task.</returns>
/// <param name="context">The requests context.</param>
public virtual async Task <bool> HandleAsync(IHttpContext context)
{
if (!ForceCheck && !string.IsNullOrWhiteSpace(context.Request.UserID))
{
return(false);
}
var xsrf = context.Request.Headers[XSRFHeaderName];
var cookie = context.Request.Cookies[AuthSessionCookieName];
if (UseXSRFTokens && CheckXSRFToken && string.IsNullOrWhiteSpace(xsrf))
{
return(SetXSRFError(context));
}
if (UseXSRFTokens && CheckXSRFToken)
{
var session = await ShortTermStorage.GetSessionFromXSRFAsync(xsrf);
if (Utility.IsNullOrExpired(session))
{
return(SetXSRFError(context));
}
if (string.IsNullOrWhiteSpace(cookie) || session.Cookie != cookie)
{
if (await LoginWithBasicAuth(context))
{
return(false);
}
if (await PerformLongTermLogin(context))
{
return(false);
}
// Check for a Hijack response
if (context.Response.HasSentHeaders)
{
return(true);
}
return(SetLoginError(context));
}
await RefreshSessionTokensAsync(context, session);
context.Request.UserID = session.UserID;
}
else
{
SessionRecord session = null;
if (!string.IsNullOrWhiteSpace(cookie))
{
session = await ShortTermStorage.GetSessionFromCookieAsync(cookie);
}
if (Utility.IsNullOrExpired(session))
{
if (await LoginWithBasicAuth(context))
{
return(false);
}
if (await PerformLongTermLogin(context))
{
return(false);
}
// Check for a Hijack response
if (context.Response.HasSentHeaders)
{
return(true);
}
return(SetLoginError(context));
}
await RefreshSessionTokensAsync(context, session);
context.Request.UserID = session.UserID;
}
return(false);
}
/// <summary>
/// Handles the request
/// </summary>
/// <returns>The awaitable task.</returns>
/// <param name="context">The requests context.</param>
public async Task <bool> HandleAsync(IHttpContext context)
{
var xsrf = context.Request.Headers[XSRFHeaderName] ?? context.Request.Cookies[XSRFCookieName];
var cookie = context.Request.Cookies[AuthSessionCookieName];
var longterm = context.Request.Cookies[AuthCookieName];
var droppedxsrf = false;
if (!string.IsNullOrWhiteSpace(xsrf))
{
var session = await ShortTermStorage.GetSessionFromXSRFAsync(xsrf);
if (session != null)
{
await ShortTermStorage.DropSessionAsync(session);
droppedxsrf = true;
}
context.Response.AddCookie(XSRFCookieName, "", path: CookiePath, expires: new DateTime(1970, 1, 1), maxage: 0);
}
if (!string.IsNullOrWhiteSpace(cookie))
{
var session = await ShortTermStorage.GetSessionFromCookieAsync(cookie);
if (session != null)
{
await ShortTermStorage.DropSessionAsync(session);
}
if (session != null || droppedxsrf)
{
context.Response.AddCookie(AuthSessionCookieName, "", path: CookiePath, expires: new DateTime(1970, 1, 1), maxage: 0);
}
}
if (!string.IsNullOrWhiteSpace(longterm))
{
if (LongTermStorage != null)
{
var pbkdf2 = new LongTermCookie(longterm);
if (pbkdf2.IsValid)
{
var lts = await LongTermStorage.GetLongTermLoginAsync(pbkdf2.Series);
if (lts != null)
{
await LongTermStorage.DropLongTermLoginAsync(lts);
}
}
}
context.Response.AddCookie(AuthCookieName, "", path: CookiePath, expires: new DateTime(1970, 1, 1), maxage: 0);
}
context.Response.StatusCode = (HttpStatusCode)ResultStatusCode;
context.Response.StatusMessage = ResultStatusMessage;
if (!string.IsNullOrWhiteSpace(RedirectUrl))
{
context.Response.Headers["Location"] = RedirectUrl;
}
return(true);
}
/// <summary>
/// Handles the request
/// </summary>
/// <returns>The awaitable task.</returns>
/// <param name="context">The requests context.</param>
public async Task <bool> HandleAsync(IHttpContext context)
{
var xsrf = context.Request.Headers[XSRFHeaderName] ?? context.Request.Cookies[XSRFCookieName];
var cookie = context.Request.Cookies[AuthSessionCookieName];
var longterm = context.Request.Cookies[AuthCookieName];
var droppedxsrf = false;
if (!string.IsNullOrWhiteSpace(xsrf))
{
var session = await ShortTermStorage.GetSessionFromXSRFAsync(xsrf);
if (session != null)
{
// Kill the existing record
await ShortTermStorage.DropSessionAsync(session);
droppedxsrf = true;
// Register a new one on the same XSRF token,
// but without any user attached
await ShortTermStorage.AddSessionAsync(new SessionRecord()
{
UserID = null,
Cookie = null,
XSRFToken = session.XSRFToken,
Expires = DateTime.Now.AddSeconds(ShortTermExpirationSeconds)
});
}
//context.Response.AddCookie(XSRFCookieName, "", path: CookiePath, expires: new DateTime(1970, 1, 1), maxage: 0);
}
if (!string.IsNullOrWhiteSpace(cookie))
{
var session = await ShortTermStorage.GetSessionFromCookieAsync(cookie);
if (session != null)
{
await ShortTermStorage.DropSessionAsync(session);
}
if (session != null || droppedxsrf)
{
context.Response.AddCookie(AuthSessionCookieName, "", path: CookiePath, expires: new DateTime(1970, 1, 1), maxage: 0);
}
}
if (!string.IsNullOrWhiteSpace(longterm))
{
if (LongTermStorage != null)
{
var pbkdf2 = new LongTermCookie(longterm);
if (pbkdf2.IsValid)
{
var lts = await LongTermStorage.GetLongTermLoginAsync(pbkdf2.Series);
if (lts != null)
{
await LongTermStorage.DropLongTermLoginAsync(lts);
}
}
}
context.Response.AddCookie(AuthCookieName, "", path: CookiePath, expires: new DateTime(1970, 1, 1), maxage: 0);
}
context.Response.StatusCode = (HttpStatusCode)ResultStatusCode;
context.Response.StatusMessage = ResultStatusMessage;
if (!string.IsNullOrWhiteSpace(RedirectUrl))
{
context.Response.Headers["Location"] = RedirectUrl;
}
return(true);
}
