/**
* 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 setStatus(int sc, String sm) {
if (isCommitted()) return;
response.setStatus(sc, sm);
}
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;
}
@Override
public void write(Response response, int statusCode, Object body) throws IOException {
response.setStatus(statusCode);
response.setContentType(APPLICATION_JSON);
ObjectMapper objectMapper = new ObjectMapper();
objectMapper.writeValue(response.getWriter(), body);
}
/**
* Set the HTTP status to be returned with this response.
*
* @param status The new HTTP status
*/
@Override
public void setStatus(int status) {
setStatus(status, null);
}
/**
* Handle the specified Throwable encountered while processing the specified Request to produce
* the specified Response. Any exceptions that occur during generation of the exception report are
* logged and swallowed.
*
* @param request The request being processed
* @param response The response being generated
* @param throwable The exception that occurred (which possibly wraps a root cause exception
*/
protected void throwable(Request request, Response response, Throwable throwable) {
Context context = request.getContext();
if (context == null) return;
Throwable realError = throwable;
if (realError instanceof ServletException) {
realError = ((ServletException) realError).getRootCause();
if (realError == null) {
realError = throwable;
}
}
// If this is an aborted request from a client just log it and return
if (realError instanceof ClientAbortException) {
if (log.isDebugEnabled()) {
log.debug(sm.getString("standardHost.clientAbort", realError.getCause().getMessage()));
}
return;
}
ErrorPage errorPage = findErrorPage(context, throwable);
if ((errorPage == null) && (realError != throwable)) {
errorPage = findErrorPage(context, realError);
}
if (errorPage != null) {
if (response.setErrorReported()) {
response.setAppCommitted(false);
request.setAttribute(Globals.DISPATCHER_REQUEST_PATH_ATTR, errorPage.getLocation());
request.setAttribute(Globals.DISPATCHER_TYPE_ATTR, DispatcherType.ERROR);
request.setAttribute(
RequestDispatcher.ERROR_STATUS_CODE,
new Integer(HttpServletResponse.SC_INTERNAL_SERVER_ERROR));
request.setAttribute(RequestDispatcher.ERROR_MESSAGE, throwable.getMessage());
request.setAttribute(RequestDispatcher.ERROR_EXCEPTION, realError);
Wrapper wrapper = request.getWrapper();
if (wrapper != null)
request.setAttribute(RequestDispatcher.ERROR_SERVLET_NAME, wrapper.getName());
request.setAttribute(RequestDispatcher.ERROR_REQUEST_URI, request.getRequestURI());
request.setAttribute(RequestDispatcher.ERROR_EXCEPTION_TYPE, realError.getClass());
if (custom(request, response, errorPage)) {
try {
response.finishResponse();
} catch (IOException e) {
container.getLogger().warn("Exception Processing " + errorPage, e);
}
}
}
} else {
// A custom error-page has not been defined for the exception
// that was thrown during request processing. Check if an
// error-page for error code 500 was specified and if so,
// send that page back as the response.
response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
// The response is an error
response.setError();
status(request, response);
}
}