in src/main/java/org/apache/sling/auth/core/AuthUtil.java [174:190]
public static String setLoginResourceAttribute(
final HttpServletRequest request, final String defaultValue) {
String resourceAttr = getAttributeString(request,
Authenticator.LOGIN_RESOURCE);
if (resourceAttr == null) {
final String resourcePar = request.getParameter(Authenticator.LOGIN_RESOURCE);
if (resourcePar != null && resourcePar.length() > 0) {
resourceAttr = resourcePar;
} else if (defaultValue != null && defaultValue.length() > 0) {
resourceAttr = defaultValue;
} else {
resourceAttr = "/";
}
request.setAttribute(Authenticator.LOGIN_RESOURCE, resourceAttr);
}
return resourceAttr;
}