// [ ENTRY POINT ]
// Generates an anti-XSRF token pair for the current user. The return
// value is the hidden input form element that should be rendered in
// the <form>. This method has a side effect: it may set a response
// cookie.
public TagBuilder GetFormInputElement(HttpContextBase httpContext)
{
CheckSSLConfig(httpContext);
AntiForgeryToken oldCookieToken = GetCookieTokenNoThrow(httpContext);
AntiForgeryToken newCookieToken, formToken;
GetTokens(httpContext, oldCookieToken, out newCookieToken, out formToken);
if (newCookieToken != null)
{
// If a new cookie was generated, persist it.
_tokenStore.SaveCookieToken(httpContext, newCookieToken);
}
if (!_config.SuppressXFrameOptionsHeader)
{
// Adding X-Frame-Options header to prevent ClickJacking. See
// http://tools.ietf.org/html/draft-ietf-websec-x-frame-options-10
// for more information.
httpContext.Response.AddHeader("X-Frame-Options", "SAMEORIGIN");
}
// <input type="hidden" name="__AntiForgeryToken" value="..." />
TagBuilder retVal = new TagBuilder("input");
retVal.Attributes["type"] = "hidden";
retVal.Attributes["name"] = _config.FormFieldName;
retVal.Attributes["value"] = _serializer.Serialize(formToken);
return(retVal);
}
public void SaveCookieToken(HttpContext httpContext, AntiForgeryToken token)
{
// Add the cookie to the request based context.
// This is useful if the cookie needs to be reloaded in the context of the same request.
var contextAccessor = httpContext.RequestServices.GetRequiredService <IContextAccessor <AntiForgeryContext> >();
Contract.Assert(contextAccessor.Value == null, "AntiForgeryContext should be set only once per request.");
contextAccessor.SetValue(new AntiForgeryContext()
{
CookieToken = token
});
var serializedToken = _serializer.Serialize(token);
var options = new CookieOptions()
{
HttpOnly = true
};
// Note: don't use "newCookie.Secure = _config.RequireSSL;" since the default
// value of newCookie.Secure is poulated out of band.
if (_config.RequireSSL)
{
options.Secure = true;
}
httpContext.Response.Cookies.Append(_config.CookieName, serializedToken, options);
}
// [ ENTRY POINT ]
// Generates an anti-XSRF token pair for the current user. The return
// value is the hidden input form element that should be rendered in
// the <form>. This method has a side effect: it may set a response
// cookie.
public TagBuilder GetFormInputElement(HttpContextBase httpContext)
{
CheckSSLConfig(httpContext);
AntiForgeryToken oldCookieToken = GetCookieTokenNoThrow(httpContext);
AntiForgeryToken newCookieToken, formToken;
GetTokens(httpContext, oldCookieToken, out newCookieToken, out formToken);
if (newCookieToken != null)
{
// If a new cookie was generated, persist it.
_tokenStore.SaveCookieToken(httpContext, newCookieToken);
}
// <input type="hidden" name="__AntiForgeryToken" value="..." />
TagBuilder retVal = new TagBuilder("input");
retVal.Attributes["type"] = "hidden";
retVal.Attributes["name"] = _config.FormFieldName;
retVal.Attributes["value"] = _serializer.Serialize(formToken);
return(retVal);
}
public void SaveCookieToken(HttpContext httpContext, AntiForgeryToken token)
{
var serializedToken = _serializer.Serialize(token);
var options = new CookieOptions()
{
HttpOnly = true
};
// Note: don't use "newCookie.Secure = _config.RequireSSL;" since the default
// value of newCookie.Secure is poulated out of band.
if (_config.RequireSSL)
{
options.Secure = true;
}
httpContext.Response.Cookies.Append(_config.CookieName, serializedToken, options);
}
public void SaveCookieToken(HttpContextBase httpContext, AntiForgeryToken token)
{
string serializedToken = _serializer.Serialize(token);
HttpCookie newCookie = new HttpCookie(_config.CookieName, serializedToken)
{
HttpOnly = true
};
// Note: don't use "newCookie.Secure = _config.RequireSSL;" since the default
// value of newCookie.Secure is automatically populated from the <httpCookies>
// config element.
if (_config.RequireSSL)
{
newCookie.Secure = true;
}
httpContext.Response.Cookies.Set(newCookie);
}
