public AuthenticationInfo extractCredentials(
HttpServletRequest request, HttpServletResponse response) {
LOGGER.debug("extractCredentials called");
AuthenticationInfo authnInfo = null;
final HttpSession session = request.getSession(false);
final Assertion assertion =
session != null ? (Assertion) session.getAttribute(CONST_CAS_ASSERTION) : null;
if (assertion != null) {
LOGGER.debug("assertion found");
authnInfo = createAuthnInfo(assertion);
} else {
final String serviceUrl = constructServiceUrl(request, response);
final String ticket = CommonUtils.safeGetParameter(request, artifactParameterName);
final boolean wasGatewayed = this.gatewayStorage.hasGatewayedAlready(request, serviceUrl);
if (CommonUtils.isNotBlank(ticket) || wasGatewayed) {
LOGGER.debug("found ticket: \"{}\" or was gatewayed", ticket);
authnInfo = getUserFromTicket(ticket, serviceUrl, request);
} else {
LOGGER.debug("no ticket and no assertion found");
}
}
return authnInfo;
}
