public void doFilter(ServletRequest request, ServletResponse response, FilterChain filterChain)
throws IOException, ServletException {
HttpServletRequest httpRequest;
HttpServletResponse httpResponse;
try {
httpRequest = (HttpServletRequest) request;
httpResponse = (HttpServletResponse) response;
IAmFilter filter = getAmFilterInstance(httpRequest);
AmFilterResult result = filter.isAccessAllowed(httpRequest, httpResponse);
switch (result.getStatus().getIntValue()) {
case AmFilterResultStatus.INT_STATUS_CONTINUE:
allowRequestToContinue(
httpRequest, httpResponse,
filterChain, result);
break;
case AmFilterResultStatus.INT_STATUS_FORBIDDEN:
httpResponse.sendError(HttpServletResponse.SC_FORBIDDEN);
break;
case AmFilterResultStatus.INT_STATUS_REDIRECT:
httpResponse.sendRedirect(result.getRedirectURL());
break;
case AmFilterResultStatus.INT_STATUS_SERVE_DATA:
sendData(httpResponse, result);
break;
case AmFilterResultStatus.INT_STATUS_SERVER_ERROR:
httpResponse.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
break;
case AmFilterResultStatus.INT_STATUS_UNAUTHORIZED:
httpResponse.sendError(HttpServletResponse.SC_UNAUTHORIZED);
break;
default:
throw new AgentException(
"Unknown filter result status: "
+ result.getStatus()
+ ":"
+ result.getStatus().getIntValue());
}
} catch (Exception ex) {
throw new ServletException("AmAgentFilter: An exception has occured", ex);
}
}
public void allowRequestToContinue(
HttpServletRequest request,
HttpServletResponse response,
FilterChain filterChain,
AmFilterResult result)
throws IOException, ServletException {
IHttpServletRequestHelper helper = result.getRequestHelper();
HttpServletRequest outgoingRequest = null;
if (helper != null) {
outgoingRequest = new AmAgentServletRequest(request, helper);
} else {
outgoingRequest = request;
}
boolean needProcessResponse = result.getProcessResponseFlag();
if (needProcessResponse) {
OpenSSOHttpServletResponse outgoingResponse =
new OpenSSOHttpServletResponse((HttpServletResponse) response);
filterChain.doFilter(outgoingRequest, outgoingResponse);
processResponse(outgoingRequest, outgoingResponse);
} else {
filterChain.doFilter(outgoingRequest, response);
}
}
protected void sendData(HttpServletResponse response, AmFilterResult result) throws IOException {
PrintWriter out = null;
try {
response.setContentType("text/html");
out = response.getWriter();
String respContent = result.getDataToServe();
boolean needProcessResponse = result.getProcessResponseFlag();
if (needProcessResponse) {
String processedRespContent =
getWsResponseProcessor().process(result.getRequestURL(), respContent);
out.print(processedRespContent);
} else {
out.print(respContent);
}
out.flush();
out.close();
} catch (IOException ex) {
throw ex;
} finally {
if (out != null) {
out.close();
}
}
}
