@Override
protected int beforeHandle(Request request, Response response) {
if (Method.OPTIONS.equals(request.getMethod())) {
Series<Header> requestHeaders =
(Series<Header>) request.getAttributes().get(HeaderConstants.ATTRIBUTE_HEADERS);
String origin = requestHeaders.getFirstValue("Origin", false, "*");
String rh = requestHeaders.getFirstValue("Access-Control-Request-Headers", false, "*");
Series<Header> responseHeaders =
(Series<Header>) response.getAttributes().get(HeaderConstants.ATTRIBUTE_HEADERS);
if (responseHeaders == null) {
responseHeaders = new Series<Header>(Header.class);
}
responseHeaders.add("Access-Control-Allow-Origin", origin);
responseHeaders.set("Access-Control-Expose-Headers", "Authorization, Link");
responseHeaders.add("Access-Control-Allow-Methods", "GET,POST,PUT,DELETE,OPTIONS");
responseHeaders.add("Access-Control-Allow-Headers", rh);
responseHeaders.add("Access-Control-Allow-Credentials", "true");
responseHeaders.add("Access-Control-Max-Age", "60");
response.getAttributes().put(HeaderConstants.ATTRIBUTE_HEADERS, responseHeaders);
response.setEntity(new EmptyRepresentation());
return SKIP;
}
return super.beforeHandle(request, response);
}
