public static void ClearAnonymousIdentifier()
{
if (!s_Initialized)
{
Initialize();
}
HttpContext context = HttpContext.Current;
if (context == null)
{
return;
}
// VSWhidbey 418835: When this feature is enabled, prevent infinite loop when cookieless
// mode != Cookies and there was no cookie, also we cannot clear when current user is anonymous.
if (!s_Enabled || !context.Request.IsAuthenticated)
{
throw new NotSupportedException(SR.GetString(SR.Anonymous_ClearAnonymousIdentifierNotSupported));
}
////////////////////////////////////////////////////////////
// Check if we need to clear the ticket stored in the URI
bool clearUri = false;
if (context.CookielessHelper.GetCookieValue('A') != null)
{
context.CookielessHelper.SetCookieValue('A', null); // Always clear the uri-cookie
clearUri = true;
}
////////////////////////////////////////////////////////////
// Clear cookie if cookies are supported by the browser
if (!CookielessHelperClass.UseCookieless(context, false, s_CookieMode) || context.Request.Browser.Cookies)
{ // clear cookie if required
string cookieValue = String.Empty;
if (context.Request.Browser["supportsEmptyStringInCookieValue"] == "false")
{
cookieValue = "NoCookie";
}
HttpCookie cookie = new HttpCookie(s_CookieName, cookieValue);
cookie.HttpOnly = true;
cookie.Path = s_CookiePath;
cookie.Secure = s_RequireSSL;
if (s_Domain != null)
{
cookie.Domain = s_Domain;
}
cookie.Expires = new System.DateTime(1999, 10, 12);
context.Response.Cookies.RemoveCookie(s_CookieName);
context.Response.Cookies.Add(cookie);
}
////////////////////////////////////////////////////////////
// Redirect back to this page if we removed a URI ticket
if (clearUri)
{
context.Response.Redirect(context.Request.RawUrl, false);
}
}
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
/// <devdoc>
/// Given an authenticated user, calling SignOut
/// removes the authentication ticket by doing a SetForms with an empty value. This
/// removes either durable or session cookies.
/// </devdoc>
public static void SignOut()
{
Initialize();
HttpContext context = HttpContext.Current;
bool needToRedirect = context.CookielessHelper.DoesCookieValueExistInOriginal('F');
context.CookielessHelper.SetCookieValue('F', null); // Always clear the uri-cookie
if (!CookielessHelperClass.UseCookieless(context, false, CookieMode) || context.Request.Browser.Cookies)
{ // clear cookie if required
string cookieValue = String.Empty;
if (context.Request.Browser["supportsEmptyStringInCookieValue"] == "false")
{
cookieValue = "NoCookie";
}
HttpCookie cookie = new HttpCookie(FormsCookieName, cookieValue);
cookie.HttpOnly = true;
cookie.Path = _FormsCookiePath;
cookie.Expires = new System.DateTime(1999, 10, 12);
cookie.Secure = _RequireSSL;
if (_CookieDomain != null)
{
cookie.Domain = _CookieDomain;
}
cookie.SameSite = _cookieSameSite;
context.Response.Cookies.RemoveCookie(FormsCookieName);
context.Response.Cookies.Add(cookie);
}
if (needToRedirect)
{
context.Response.Redirect(GetLoginPage(null), false);
}
}
public static void SignOut()
{
Initialize();
HttpContext current = HttpContext.Current;
bool flag = current.CookielessHelper.DoesCookieValueExistInOriginal('F');
current.CookielessHelper.SetCookieValue('F', null);
if (!CookielessHelperClass.UseCookieless(current, false, CookieMode) || current.Request.Browser.Cookies)
{
string str = string.Empty;
if (current.Request.Browser["supportsEmptyStringInCookieValue"] == "false")
{
str = "NoCookie";
}
HttpCookie cookie = new HttpCookie(FormsCookieName, str)
{
HttpOnly = true,
Path = _FormsCookiePath,
Expires = new DateTime(0x7cf, 10, 12),
Secure = _RequireSSL
};
if (_CookieDomain != null)
{
cookie.Domain = _CookieDomain;
}
current.Response.Cookies.RemoveCookie(FormsCookieName);
current.Response.Cookies.Add(cookie);
}
if (flag)
{
current.Response.Redirect(GetLoginPage(null), false);
}
}
private void OnLeave(object source, EventArgs eventArgs)
{
if (this._fOnEnterCalled)
{
this._fOnEnterCalled = false;
}
else
{
return;
}
HttpApplication application = (HttpApplication)source;
HttpContext context = application.Context;
if (context.Response.Cookies.GetNoCreate(FormsAuthentication.FormsCookieName) != null)
{
context.Response.Cache.SetCacheability(HttpCacheability.NoCache, "Set-Cookie");
}
if (context.Response.StatusCode == 0x191)
{
string rawUrl = context.Request.RawUrl;
if ((rawUrl.IndexOf("?ReturnUrl=", StringComparison.Ordinal) == -1) && (rawUrl.IndexOf("&ReturnUrl=", StringComparison.Ordinal) == -1))
{
string str3;
string strUrl = null;
if (!string.IsNullOrEmpty(FormsAuthentication.LoginUrl))
{
strUrl = AuthenticationConfig.GetCompleteLoginUrl(context, FormsAuthentication.LoginUrl);
}
if ((strUrl == null) || (strUrl.Length <= 0))
{
throw new HttpException(System.Web.SR.GetString("Auth_Invalid_Login_Url"));
}
CookielessHelperClass cookielessHelper = context.CookielessHelper;
if (strUrl.IndexOf('?') >= 0)
{
str3 = FormsAuthentication.RemoveQueryStringVariableFromUrl(strUrl, "ReturnUrl") + "&ReturnUrl=" + HttpUtility.UrlEncode(rawUrl, context.Request.ContentEncoding);
}
else
{
str3 = strUrl + "?ReturnUrl=" + HttpUtility.UrlEncode(rawUrl, context.Request.ContentEncoding);
}
int index = rawUrl.IndexOf('?');
if ((index >= 0) && (index < (rawUrl.Length - 1)))
{
str3 = str3 + "&" + rawUrl.Substring(index + 1);
}
cookielessHelper.SetCookieValue('F', null);
cookielessHelper.RedirectWithDetectionIfRequired(str3, FormsAuthentication.CookieMode);
context.Response.Redirect(str3, false);
}
}
}
public static void ClearAnonymousIdentifier()
{
if (!s_Initialized)
{
Initialize();
}
HttpContext current = HttpContext.Current;
if (current != null)
{
if (!s_Enabled || !current.Request.IsAuthenticated)
{
throw new NotSupportedException(System.Web.SR.GetString("Anonymous_ClearAnonymousIdentifierNotSupported"));
}
bool flag = false;
if (current.CookielessHelper.GetCookieValue('A') != null)
{
current.CookielessHelper.SetCookieValue('A', null);
flag = true;
}
if (!CookielessHelperClass.UseCookieless(current, false, s_CookieMode) || current.Request.Browser.Cookies)
{
string str = string.Empty;
if (current.Request.Browser["supportsEmptyStringInCookieValue"] == "false")
{
str = "NoCookie";
}
HttpCookie cookie = new HttpCookie(s_CookieName, str)
{
HttpOnly = true,
Path = s_CookiePath,
Secure = s_RequireSSL
};
if (s_Domain != null)
{
cookie.Domain = s_Domain;
}
cookie.Expires = new DateTime(0x7cf, 10, 12);
current.Response.Cookies.RemoveCookie(s_CookieName);
current.Response.Cookies.Add(cookie);
}
if (flag)
{
current.Response.Redirect(current.Request.RawUrl, false);
}
}
}
private void OnEnter(object source, EventArgs eventArgs)
{
this._fOnEnterCalled = true;
HttpApplication application = (HttpApplication)source;
HttpContext context = application.Context;
this.OnAuthenticate(new FormsAuthenticationEventArgs(context));
CookielessHelperClass cookielessHelper = context.CookielessHelper;
if (AuthenticationConfig.AccessingLoginPage(context, FormsAuthentication.LoginUrl))
{
context.SetSkipAuthorizationNoDemand(true, false);
cookielessHelper.RedirectWithDetectionIfRequired(null, FormsAuthentication.CookieMode);
}
if (!context.SkipAuthorization)
{
context.SetSkipAuthorizationNoDemand(AssemblyResourceLoader.IsValidWebResourceRequest(context), false);
}
}
/// <devdoc>
/// This method creates an authentication ticket
/// for the given userName and attaches it to the cookies collection of the outgoing
/// response. It does not perform a redirect.
/// </devdoc>
public static void SetAuthCookie(String userName, bool createPersistentCookie, String strCookiePath)
{
Initialize();
HttpContext context = HttpContext.Current;
if (!context.Request.IsSecureConnection && RequireSSL)
{
throw new HttpException(SR.GetString(SR.Connection_not_secure_creating_secure_cookie));
}
bool cookieless = CookielessHelperClass.UseCookieless(context, false, CookieMode);
HttpCookie cookie = GetAuthCookie(userName, createPersistentCookie, cookieless ? "/" : strCookiePath, !cookieless);
if (!cookieless)
{
HttpContext.Current.Response.Cookies.Add(cookie);
context.CookielessHelper.SetCookieValue('F', null);
}
else
{
context.CookielessHelper.SetCookieValue('F', cookie.Value);
}
}
////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
private void OnEnter(Object source, EventArgs eventArgs)
{
_fOnEnterCalled = true;
HttpApplication app;
HttpContext context;
app = (HttpApplication)source;
context = app.Context;
#if DBG
Trace("*******************Request path: " + context.Request.RawUrl);
#endif
////////////////////////////////////////////////////////
// Step 2: Call OnAuthenticate virtual method to create
// an IPrincipal for this request
OnAuthenticate(new FormsAuthenticationEventArgs(context));
////////////////////////////////////////////////////////
// Skip AuthZ if accessing the login page
// We do this here to force the cookieless helper to fish out and
// remove the token from the URL if it's present there.
CookielessHelperClass cookielessHelper = context.CookielessHelper;
if (AuthenticationConfig.AccessingLoginPage(context, FormsAuthentication.LoginUrl))
{
context.SetSkipAuthorizationNoDemand(true, false /*managedOnly*/);
cookielessHelper.RedirectWithDetectionIfRequired(null, FormsAuthentication.CookieMode);
}
if (!context.SkipAuthorization)
{
context.SetSkipAuthorizationNoDemand(AssemblyResourceLoader.IsValidWebResourceRequest(context), false /*managedOnly*/);
}
}
////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
private void OnEnter(Object source, EventArgs eventArgs)
{
if (!s_Initialized)
{
Initialize();
}
if (!s_Enabled)
{
return;
}
HttpApplication app;
HttpContext context;
HttpCookie cookie = null;
bool createCookie = false;
AnonymousIdData decodedValue = null;
bool cookieLess;
string encValue = null;
bool isAuthenticated = false;
app = (HttpApplication)source;
context = app.Context;
isAuthenticated = context.Request.IsAuthenticated;
if (isAuthenticated)
{
cookieLess = CookielessHelperClass.UseCookieless(context, false /* no redirect */, s_CookieMode);
}
else
{
cookieLess = CookielessHelperClass.UseCookieless(context, true /* do redirect */, s_CookieMode);
//if (!cookieLess && s_RequireSSL && !context.Request.IsSecureConnection)
// throw new HttpException(SR.GetString(SR.Connection_not_secure_creating_secure_cookie));
}
////////////////////////////////////////////////////////////////////////
// Handle secure-cookies over non SSL
if (s_RequireSSL && !context.Request.IsSecureConnection)
{
if (!cookieLess)
{
cookie = context.Request.Cookies[s_CookieName];
if (cookie != null)
{
cookie = new HttpCookie(s_CookieName, String.Empty);
cookie.HttpOnly = true;
cookie.Path = s_CookiePath;
cookie.Secure = s_RequireSSL;
if (s_Domain != null)
{
cookie.Domain = s_Domain;
}
cookie.Expires = new System.DateTime(1999, 10, 12);
if (context.Request.Browser["supportsEmptyStringInCookieValue"] == "false")
{
cookie.Value = "NoCookie";
}
context.Response.Cookies.Add(cookie);
}
return;
}
}
////////////////////////////////////////////////////////////
// Step 2: See if cookie, or cookie-header has the value
if (!cookieLess)
{
cookie = context.Request.Cookies[s_CookieName];
if (cookie != null)
{
encValue = cookie.Value;
cookie.Path = s_CookiePath;
if (s_Domain != null)
{
cookie.Domain = s_Domain;
}
}
}
else
{
encValue = context.CookielessHelper.GetCookieValue('A');
}
decodedValue = GetDecodedValue(encValue);
if (decodedValue != null && decodedValue.AnonymousId != null)
{
// Copy existing value in Request
context.Request.AnonymousID = decodedValue.AnonymousId;
}
if (isAuthenticated) // For the authenticated case, we are done
{
return;
}
if (context.Request.AnonymousID == null)
{
////////////////////////////////////////////////////////////
// Step 3: Create new Identity
// Raise event
if (_CreateNewIdEventHandler != null)
{
AnonymousIdentificationEventArgs e = new AnonymousIdentificationEventArgs(context);
_CreateNewIdEventHandler(this, e);
context.Request.AnonymousID = e.AnonymousID;
}
// Create from GUID
if (string.IsNullOrEmpty(context.Request.AnonymousID))
{
context.Request.AnonymousID = Guid.NewGuid().ToString("D", CultureInfo.InvariantCulture);
}
else
{
if (context.Request.AnonymousID.Length > MAX_ID_LENGTH)
{
throw new HttpException(SR.GetString(SR.Anonymous_id_too_long));
}
}
if (s_RequireSSL && !context.Request.IsSecureConnection && !cookieLess)
{
return; // Don't create secure-cookie in un-secured connection
}
createCookie = true;
}
////////////////////////////////////////////////////////////
// Step 4: Check if cookie has to be created
DateTime dtNow = DateTime.UtcNow;
if (!createCookie)
{
if (s_SlidingExpiration)
{
if (decodedValue == null || decodedValue.ExpireDate < dtNow)
{
createCookie = true;
}
else
{
double secondsLeft = (decodedValue.ExpireDate - dtNow).TotalSeconds;
if (secondsLeft < (double)((s_CookieTimeout * 60) / 2))
{
createCookie = true;
}
}
}
}
////////////////////////////////////////////////////////////
// Step 4: Create new cookie or cookieless header
if (createCookie)
{
DateTime dtExpireTime = dtNow.AddMinutes(s_CookieTimeout);
encValue = GetEncodedValue(new AnonymousIdData(context.Request.AnonymousID, dtExpireTime));
if (encValue.Length > MAX_ENCODED_COOKIE_STRING)
{
throw new HttpException(SR.GetString(SR.Anonymous_id_too_long_2));
}
if (!cookieLess)
{
cookie = new HttpCookie(s_CookieName, encValue);
cookie.HttpOnly = true;
cookie.Expires = dtExpireTime;
cookie.Path = s_CookiePath;
cookie.Secure = s_RequireSSL;
if (s_Domain != null)
{
cookie.Domain = s_Domain;
}
context.Response.Cookies.Add(cookie);
}
else
{
context.CookielessHelper.SetCookieValue('A', encValue);
context.Response.Redirect(context.Request.RawUrl);
}
}
}
private void OnEnter(object source, EventArgs eventArgs)
{
if (!s_Initialized)
{
Initialize();
}
if (s_Enabled)
{
bool flag2;
HttpCookie cookie = null;
bool flag = false;
AnonymousIdData decodedValue = null;
string cookieValue = null;
bool isAuthenticated = false;
HttpApplication application = (HttpApplication)source;
HttpContext context = application.Context;
isAuthenticated = context.Request.IsAuthenticated;
if (isAuthenticated)
{
flag2 = CookielessHelperClass.UseCookieless(context, false, s_CookieMode);
}
else
{
flag2 = CookielessHelperClass.UseCookieless(context, true, s_CookieMode);
}
if ((s_RequireSSL && !context.Request.IsSecureConnection) && !flag2)
{
if (context.Request.Cookies[s_CookieName] != null)
{
cookie = new HttpCookie(s_CookieName, string.Empty)
{
HttpOnly = true,
Path = s_CookiePath,
Secure = s_RequireSSL
};
if (s_Domain != null)
{
cookie.Domain = s_Domain;
}
cookie.Expires = new DateTime(0x7cf, 10, 12);
if (context.Request.Browser["supportsEmptyStringInCookieValue"] == "false")
{
cookie.Value = "NoCookie";
}
context.Response.Cookies.Add(cookie);
}
}
else
{
if (!flag2)
{
cookie = context.Request.Cookies[s_CookieName];
if (cookie != null)
{
cookieValue = cookie.Value;
cookie.Path = s_CookiePath;
if (s_Domain != null)
{
cookie.Domain = s_Domain;
}
}
}
else
{
cookieValue = context.CookielessHelper.GetCookieValue('A');
}
decodedValue = GetDecodedValue(cookieValue);
if ((decodedValue != null) && (decodedValue.AnonymousId != null))
{
context.Request._AnonymousId = decodedValue.AnonymousId;
}
if (!isAuthenticated)
{
if (context.Request._AnonymousId == null)
{
if (this._CreateNewIdEventHandler != null)
{
AnonymousIdentificationEventArgs e = new AnonymousIdentificationEventArgs(context);
this._CreateNewIdEventHandler(this, e);
context.Request._AnonymousId = e.AnonymousID;
}
if (string.IsNullOrEmpty(context.Request._AnonymousId))
{
context.Request._AnonymousId = Guid.NewGuid().ToString("D", CultureInfo.InvariantCulture);
}
else if (context.Request._AnonymousId.Length > 0x80)
{
throw new HttpException(System.Web.SR.GetString("Anonymous_id_too_long"));
}
if ((s_RequireSSL && !context.Request.IsSecureConnection) && !flag2)
{
return;
}
flag = true;
}
DateTime utcNow = DateTime.UtcNow;
if (!flag && s_SlidingExpiration)
{
if ((decodedValue == null) || (decodedValue.ExpireDate < utcNow))
{
flag = true;
}
else
{
TimeSpan span = (TimeSpan)(decodedValue.ExpireDate - utcNow);
if (span.TotalSeconds < ((s_CookieTimeout * 60) / 2))
{
flag = true;
}
}
}
if (flag)
{
DateTime dt = utcNow.AddMinutes((double)s_CookieTimeout);
cookieValue = GetEncodedValue(new AnonymousIdData(context.Request.AnonymousID, dt));
if (cookieValue.Length > 0x200)
{
throw new HttpException(System.Web.SR.GetString("Anonymous_id_too_long_2"));
}
if (!flag2)
{
cookie = new HttpCookie(s_CookieName, cookieValue)
{
HttpOnly = true,
Expires = dt,
Path = s_CookiePath,
Secure = s_RequireSSL
};
if (s_Domain != null)
{
cookie.Domain = s_Domain;
}
context.Response.Cookies.Add(cookie);
}
else
{
context.CookielessHelper.SetCookieValue('A', cookieValue);
context.Response.Redirect(context.Request.RawUrl);
}
}
}
}
}
}
////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////
// Private method for decrypting a cookie
private static FormsAuthenticationTicket ExtractTicketFromCookie(HttpContext context, String name, out bool cookielessTicket)
{
FormsAuthenticationTicket ticket = null;
string encValue = null;
bool ticketExpired = false;
bool badTicket = false;
try {
try {
////////////////////////////////////////////////////////////
// Step 0: Check if we should use cookieless
cookielessTicket = CookielessHelperClass.UseCookieless(context, false, FormsAuthentication.CookieMode);
////////////////////////////////////////////////////////////
// Step 1: Check URI/cookie for ticket
if (cookielessTicket)
{
encValue = context.CookielessHelper.GetCookieValue('F');
}
else
{
HttpCookie cookie = context.Request.Cookies[name];
if (cookie != null)
{
encValue = cookie.Value;
}
}
////////////////////////////////////////////////////////////
// Step 2: Decrypt encrypted ticket
if (encValue != null && encValue.Length > 1)
{
try {
ticket = FormsAuthentication.Decrypt(encValue);
} catch {
if (cookielessTicket)
{
context.CookielessHelper.SetCookieValue('F', null);
}
else
{
context.Request.Cookies.Remove(name);
}
badTicket = true;
//throw;
}
if (ticket == null)
{
badTicket = true;
}
if (ticket != null && !ticket.Expired)
{
if (cookielessTicket || !FormsAuthentication.RequireSSL || context.Request.IsSecureConnection) // Make sure it is NOT a secure cookie over an in-secure connection
{
return(ticket); // Found valid ticket
}
}
if (ticket != null && ticket.Expired)
{
ticketExpired = true;
}
// Step 2b: Remove expired/bad ticket
ticket = null;
if (cookielessTicket)
{
context.CookielessHelper.SetCookieValue('F', null);
}
else
{
context.Request.Cookies.Remove(name);
}
}
////////////////////////////////////////////////////////////
// Step 3: Look in QueryString
if (FormsAuthentication.EnableCrossAppRedirects)
{
encValue = context.Request.QueryString[name];
if (encValue != null && encValue.Length > 1)
{
if (!cookielessTicket && FormsAuthentication.CookieMode == HttpCookieMode.AutoDetect)
{
cookielessTicket = CookielessHelperClass.UseCookieless(context, true, FormsAuthentication.CookieMode); // find out for sure
}
try {
ticket = FormsAuthentication.Decrypt(encValue);
} catch {
badTicket = true;
//throw;
}
if (ticket == null)
{
badTicket = true;
}
}
// Step 3b: Look elsewhere in the request (i.e. posted body)
if (ticket == null || ticket.Expired)
{
encValue = context.Request.Form[name];
if (encValue != null && encValue.Length > 1)
{
if (!cookielessTicket && FormsAuthentication.CookieMode == HttpCookieMode.AutoDetect)
{
cookielessTicket = CookielessHelperClass.UseCookieless(context, true, FormsAuthentication.CookieMode); // find out for sure
}
try {
ticket = FormsAuthentication.Decrypt(encValue);
} catch {
badTicket = true;
//throw;
}
if (ticket == null)
{
badTicket = true;
}
}
}
}
if (ticket == null || ticket.Expired)
{
if (ticket != null && ticket.Expired)
{
ticketExpired = true;
}
return(null); // not found! Exit with null
}
if (FormsAuthentication.RequireSSL && !context.Request.IsSecureConnection) // Bad scenario: valid ticket over non-SSL
{
throw new HttpException(SR.GetString(SR.Connection_not_secure_creating_secure_cookie));
}
////////////////////////////////////////////////////////////
// Step 4: Create the cookie/URI value
if (cookielessTicket)
{
if (ticket.CookiePath != "/")
{
FormsAuthenticationTicket tempTicket = FormsAuthenticationTicket.FromUtc(ticket.Version, ticket.Name, ticket.IssueDateUtc,
ticket.ExpirationUtc, ticket.IsPersistent, ticket.UserData,
"/");
ticket = tempTicket;
encValue = FormsAuthentication.Encrypt(ticket);
}
context.CookielessHelper.SetCookieValue('F', encValue);
string strUrl = FormsAuthentication.RemoveQueryStringVariableFromUrl(context.Request.RawUrl, name);
context.Response.Redirect(strUrl);
}
else
{
HttpCookie cookie = new HttpCookie(name, encValue);
cookie.HttpOnly = true;
cookie.Path = ticket.CookiePath;
if (ticket.IsPersistent)
{
cookie.Expires = ticket.Expiration;
}
cookie.Secure = FormsAuthentication.RequireSSL;
if (FormsAuthentication.CookieDomain != null)
{
cookie.Domain = FormsAuthentication.CookieDomain;
}
context.Response.Cookies.Remove(cookie.Name);
context.Response.Cookies.Add(cookie);
}
return(ticket);
} finally {
if (badTicket)
{
WebBaseEvent.RaiseSystemEvent(null, WebEventCodes.AuditFormsAuthenticationFailure,
WebEventCodes.InvalidTicketFailure);
}
else if (ticketExpired)
{
WebBaseEvent.RaiseSystemEvent(null, WebEventCodes.AuditFormsAuthenticationFailure,
WebEventCodes.ExpiredTicketFailure);
}
}
} catch {
throw;
}
}
private static FormsAuthenticationTicket ExtractTicketFromCookie(HttpContext context, string name, out bool cookielessTicket)
{
FormsAuthenticationTicket ticket = null;
string encryptedTicket = null;
FormsAuthenticationTicket ticket2;
bool flag = false;
bool flag2 = false;
try
{
try
{
cookielessTicket = CookielessHelperClass.UseCookieless(context, false, FormsAuthentication.CookieMode);
if (cookielessTicket)
{
encryptedTicket = context.CookielessHelper.GetCookieValue('F');
}
else
{
HttpCookie cookie = context.Request.Cookies[name];
if (cookie != null)
{
encryptedTicket = cookie.Value;
}
}
if ((encryptedTicket != null) && (encryptedTicket.Length > 1))
{
try
{
ticket = FormsAuthentication.Decrypt(encryptedTicket);
}
catch
{
if (cookielessTicket)
{
context.CookielessHelper.SetCookieValue('F', null);
}
else
{
context.Request.Cookies.Remove(name);
}
flag2 = true;
}
if (ticket == null)
{
flag2 = true;
}
if (((ticket != null) && !ticket.Expired) && ((cookielessTicket || !FormsAuthentication.RequireSSL) || context.Request.IsSecureConnection))
{
return(ticket);
}
if ((ticket != null) && ticket.Expired)
{
flag = true;
}
ticket = null;
if (cookielessTicket)
{
context.CookielessHelper.SetCookieValue('F', null);
}
else
{
context.Request.Cookies.Remove(name);
}
}
if (FormsAuthentication.EnableCrossAppRedirects)
{
encryptedTicket = context.Request.QueryString[name];
if ((encryptedTicket != null) && (encryptedTicket.Length > 1))
{
if (!cookielessTicket && (FormsAuthentication.CookieMode == HttpCookieMode.AutoDetect))
{
cookielessTicket = CookielessHelperClass.UseCookieless(context, true, FormsAuthentication.CookieMode);
}
try
{
ticket = FormsAuthentication.Decrypt(encryptedTicket);
}
catch
{
flag2 = true;
}
if (ticket == null)
{
flag2 = true;
}
}
if ((ticket == null) || ticket.Expired)
{
encryptedTicket = context.Request.Form[name];
if ((encryptedTicket != null) && (encryptedTicket.Length > 1))
{
if (!cookielessTicket && (FormsAuthentication.CookieMode == HttpCookieMode.AutoDetect))
{
cookielessTicket = CookielessHelperClass.UseCookieless(context, true, FormsAuthentication.CookieMode);
}
try
{
ticket = FormsAuthentication.Decrypt(encryptedTicket);
}
catch
{
flag2 = true;
}
if (ticket == null)
{
flag2 = true;
}
}
}
}
if ((ticket == null) || ticket.Expired)
{
if ((ticket != null) && ticket.Expired)
{
flag = true;
}
return(null);
}
if (FormsAuthentication.RequireSSL && !context.Request.IsSecureConnection)
{
throw new HttpException(System.Web.SR.GetString("Connection_not_secure_creating_secure_cookie"));
}
if (cookielessTicket)
{
if (ticket.CookiePath != "/")
{
ticket = FormsAuthenticationTicket.FromUtc(ticket.Version, ticket.Name, ticket.IssueDateUtc, ticket.ExpirationUtc, ticket.IsPersistent, ticket.UserData, "/");
encryptedTicket = FormsAuthentication.Encrypt(ticket);
}
context.CookielessHelper.SetCookieValue('F', encryptedTicket);
string url = FormsAuthentication.RemoveQueryStringVariableFromUrl(context.Request.RawUrl, name);
context.Response.Redirect(url);
}
else
{
HttpCookie cookie2 = new HttpCookie(name, encryptedTicket)
{
HttpOnly = true,
Path = ticket.CookiePath
};
if (ticket.IsPersistent)
{
cookie2.Expires = ticket.Expiration;
}
cookie2.Secure = FormsAuthentication.RequireSSL;
if (FormsAuthentication.CookieDomain != null)
{
cookie2.Domain = FormsAuthentication.CookieDomain;
}
context.Response.Cookies.Remove(cookie2.Name);
context.Response.Cookies.Add(cookie2);
}
ticket2 = ticket;
}
finally
{
if (flag2)
{
WebBaseEvent.RaiseSystemEvent(null, 0xfa5, 0xc419);
}
else if (flag)
{
WebBaseEvent.RaiseSystemEvent(null, 0xfa5, 0xc41a);
}
}
}
catch
{
throw;
}
return(ticket2);
}