public boolean checkCorsPreflight(Request request, Response response) {
log.finer("checkCorsPreflight " + request.getRequestURI());
if (!request.getMethod().equalsIgnoreCase("OPTIONS")) {
log.finer("checkCorsPreflight: not options ");
return false;
}
if (request.getHeader("Origin") == null) {
log.finer("checkCorsPreflight: no origin header");
return false;
}
log.finer("Preflight request returning");
response.setStatus(HttpServletResponse.SC_OK);
String origin = request.getHeader("Origin");
response.setHeader("Access-Control-Allow-Origin", origin);
response.setHeader("Access-Control-Allow-Credentials", "true");
String requestMethods = request.getHeader("Access-Control-Request-Method");
if (requestMethods != null) {
if (deployment.getCorsAllowedMethods() != null) {
requestMethods = deployment.getCorsAllowedMethods();
}
response.setHeader("Access-Control-Allow-Methods", requestMethods);
}
String allowHeaders = request.getHeader("Access-Control-Request-Headers");
if (allowHeaders != null) {
if (deployment.getCorsAllowedHeaders() != null) {
allowHeaders = deployment.getCorsAllowedHeaders();
}
response.setHeader("Access-Control-Allow-Headers", allowHeaders);
}
if (deployment.getCorsMaxAge() > -1) {
response.setHeader("Access-Control-Max-Age", Integer.toString(deployment.getCorsMaxAge()));
}
return true;
}
/**
* Internal method that allows a redirect to be sent with a status other than {@link
* HttpServletResponse#SC_FOUND} (302). No attempt is made to validate the status code.
*/
public void sendRedirect(String location, int status) throws IOException {
if (isCommitted()) {
throw new IllegalStateException(sm.getString("coyoteResponse.sendRedirect.ise"));
}
// Ignore any call from an included servlet
if (included) {
return;
}
// Clear any data content that has been buffered
resetBuffer(true);
// Generate a temporary redirect to the specified location
try {
String absolute = toAbsolute(location);
setStatus(status);
setHeader("Location", absolute);
if (getContext().getSendRedirectBody()) {
PrintWriter writer = getWriter();
writer.print(
sm.getString("coyoteResponse.sendRedirect.note", RequestUtil.filter(absolute)));
flushBuffer();
}
} catch (IllegalArgumentException e) {
setStatus(SC_NOT_FOUND);
}
// Cause the response to be finished (from the application perspective)
setSuspended(true);
}
@Override
public void setHeader(String name, String value) {
if (isCommitted()) return;
response.setHeader(name, value);
}
/**
* Set the specified integer header to the specified value.
*
* @param name Name of the header to set
* @param value Integer value to be set
*/
@Override
public void setIntHeader(String name, int value) {
if (name == null || name.length() == 0) {
return;
}
if (isCommitted()) {
return;
}
// Ignore any call from an included servlet
if (included) {
return;
}
setHeader(name, "" + value);
}
/**
* Set the specified date header to the specified value.
*
* @param name Name of the header to set
* @param value Date value to be set
*/
@Override
public void setDateHeader(String name, long value) {
if (name == null || name.length() == 0) {
return;
}
if (isCommitted()) {
return;
}
// Ignore any call from an included servlet
if (included) {
return;
}
if (format == null) {
format = new SimpleDateFormat(FastHttpDateFormat.RFC1123_DATE, Locale.US);
format.setTimeZone(TimeZone.getTimeZone("GMT"));
}
setHeader(name, FastHttpDateFormat.formatDate(value, format));
}