public void setHeader(HttpHeader name, String value) {
if (HttpHeader.CONTENT_TYPE == name) setContentType(value);
else {
if (isIncluding()) return;
_fields.put(name, value);
if (HttpHeader.CONTENT_LENGTH == name) {
if (value == null) _contentLength = -1l;
else _contentLength = Long.parseLong(value);
}
}
}
@Override
public void setHeader(String name, String value) {
if (HttpHeader.CONTENT_TYPE.is(name)) setContentType(value);
else {
if (isIncluding()) {
if (name.startsWith(SET_INCLUDE_HEADER_PREFIX))
name = name.substring(SET_INCLUDE_HEADER_PREFIX.length());
else return;
}
_fields.put(name, value);
if (HttpHeader.CONTENT_LENGTH.is(name)) {
if (value == null) _contentLength = -1l;
else _contentLength = Long.parseLong(value);
}
}
}
@Override
public void sendError(int code, String message) throws IOException {
if (isIncluding()) return;
if (isCommitted()) LOG.warn("Committed before " + code + " " + message);
resetBuffer();
_characterEncoding = null;
setHeader(HttpHeader.EXPIRES, null);
setHeader(HttpHeader.LAST_MODIFIED, null);
setHeader(HttpHeader.CACHE_CONTROL, null);
setHeader(HttpHeader.CONTENT_TYPE, null);
setHeader(HttpHeader.CONTENT_LENGTH, null);
_outputType = OutputType.NONE;
setStatus(code);
_reason = message;
Request request = _channel.getRequest();
Throwable cause = (Throwable) request.getAttribute(Dispatcher.ERROR_EXCEPTION);
if (message == null) message = cause == null ? HttpStatus.getMessage(code) : cause.toString();
// If we are allowed to have a body
if (code != SC_NO_CONTENT
&& code != SC_NOT_MODIFIED
&& code != SC_PARTIAL_CONTENT
&& code >= SC_OK) {
ErrorHandler error_handler = null;
ContextHandler.Context context = request.getContext();
if (context != null) error_handler = context.getContextHandler().getErrorHandler();
if (error_handler == null) error_handler = _channel.getServer().getBean(ErrorHandler.class);
if (error_handler != null) {
request.setAttribute(RequestDispatcher.ERROR_STATUS_CODE, new Integer(code));
request.setAttribute(RequestDispatcher.ERROR_MESSAGE, message);
request.setAttribute(RequestDispatcher.ERROR_REQUEST_URI, request.getRequestURI());
request.setAttribute(RequestDispatcher.ERROR_SERVLET_NAME, request.getServletName());
error_handler.handle(null, _channel.getRequest(), _channel.getRequest(), this);
} else {
setHeader(HttpHeader.CACHE_CONTROL, "must-revalidate,no-cache,no-store");
setContentType(MimeTypes.Type.TEXT_HTML_8859_1.toString());
ByteArrayISO8859Writer writer = new ByteArrayISO8859Writer(2048);
if (message != null) {
message = StringUtil.replace(message, "&", "&");
message = StringUtil.replace(message, "<", "<");
message = StringUtil.replace(message, ">", ">");
}
String uri = request.getRequestURI();
if (uri != null) {
uri = StringUtil.replace(uri, "&", "&");
uri = StringUtil.replace(uri, "<", "<");
uri = StringUtil.replace(uri, ">", ">");
}
writer.write(
"<html>\n<head>\n<meta http-equiv=\"Content-Type\" content=\"text/html;charset=ISO-8859-1\"/>\n");
writer.write("<title>Error ");
writer.write(Integer.toString(code));
writer.write(' ');
if (message == null) writer.write(message);
writer.write("</title>\n</head>\n<body>\n<h2>HTTP ERROR: ");
writer.write(Integer.toString(code));
writer.write("</h2>\n<p>Problem accessing ");
writer.write(uri);
writer.write(". Reason:\n<pre> ");
writer.write(message);
writer.write("</pre>");
writer.write("</p>\n<hr /><i><small>Powered by Jetty://</small></i>");
writer.write("\n</body>\n</html>\n");
writer.flush();
setContentLength(writer.size());
writer.writeTo(getOutputStream());
writer.destroy();
}
} else if (code != SC_PARTIAL_CONTENT) {
// TODO work out why this is required?
_channel.getRequest().getHttpFields().remove(HttpHeader.CONTENT_TYPE);
_channel.getRequest().getHttpFields().remove(HttpHeader.CONTENT_LENGTH);
_characterEncoding = null;
_mimeType = null;
}
complete();
}
