/**
* 从msg的[pathArr]中定位子Action的actName
*
* @param msg
* @param pathNum
* @param defaultStr
* @return subact 子Action的actName
*/
public static final String actPath(ActionMsg msg, int pathNum, String defaultStr) {
// FIXME 测试时多计算了Servlet
pathNum = pathNum + rootNum;
String[] pathArr = (String[]) msg.getData("[pathArr]");
String subact = (pathArr.length <= pathNum) ? defaultStr : pathArr[pathNum];
return subact;
}
/** @see Filter#doFilter(ServletRequest, ServletResponse, FilterChain) */
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException {
HttpServletRequest req = (HttpServletRequest) request;
HttpServletResponse resp = (HttpServletResponse) response;
// 全程使用utf-8
setCharset("utf-8", req, resp);
String requrl = req.getRequestURI();
// requrl = (requrl == null) ? "" : requrl.substring(1);
String[] pathArr = requrl.split("\\/");
int rn = rootNum + 1;
// [root]为默认Action
String actName = (pathArr.length <= rn) ? "[root]" : pathArr[rn];
// TODO 过滤静态请求,此处如果配合前端的web server过滤可省去
if (staticPath.containsKey(actName)) {
// String encoding = req.getHeader("Accept-Encoding");
// if (encoding != null && encoding.indexOf("gzip") != -1){
// HttpServletResponseWrapper wrapper = new GZIPServletResponseWrapper(resp);
// chain.doFilter(req, wrapper);
// wrapper.getOutputStream().close();
// }else{
// chain.doFilter(request, response);
// }
chain.doFilter(request, response);
return;
}
if (isStop) {
// FIXME 穿透控制,注意这里一定要加ip控制
if (req.getParameter("keelcontrolsall") == null) {
resp.setStatus(500);
resp.getWriter().print("System under maintenance, please come back later.");
return;
}
}
// chain.doFilter(request, response);
try {
// pathArr[0]为域名，pathArr[1]为第一个路径,后面继续为路径,最后面为参数
// String[] pathArr = requrl.substring(requrl.indexOf("//")+2).split("\\/");
// int rn = 1+rootNum;
// String actName = (pathArr.length <= rn) ? "" : pathArr[rn];
ActionMsg msg = new HttpActionMsg(actName, req, resp);
Action action = ActionManager.findAction(actName);
if (action == null) {
// 如果存在以*为name的Action，则此Action为默认Action,可匹配所有未匹配到的Action请求
if (hasDefaultAction) {
// 加入actName,以便defaultAction使用
msg.addData("[actName]", actName);
action = this.defaultAction;
} else {
resp.setStatus(404);
resp.getWriter().print("404 - 2");
return;
}
}
msg.addData("[pathArr]", pathArr);
// msg.addData("[prefix]", staticPrefix);
// 执行action
msg = action.act(msg);
// 不处理
if (msg.getData("[none]") != null) {
return;
}
// 是否打印
else if (msg.getData("[print]") != null) {
resp.getWriter().print(msg.getData("[print]"));
return;
}
// 是否发向JSP
else if (msg.getData("[jsp]") != null) {
String to = (String) msg.getData("[jsp]");
// Object o = msg.getData("[jspAttr]");
// if (o != null) {
// req.setAttribute("[jspAttr]", o);
// }
req.setAttribute("[jspAttr]", msg);
RequestDispatcher rd = req.getRequestDispatcher(to);
rd.forward(req, resp);
return;
}
// 是否本地跳转
else if (msg.getData("[redirect]") != null) {
String redirect = KFilter.getPrefix() + (String) msg.getData("[redirect]");
resp.sendRedirect(redirect);
return;
}
// 是否直接跳转
else if (msg.getData("[goto]") != null) {
String link = (String) msg.getData("[goto]");
resp.sendRedirect(link);
return;
}
// 继续走chain
// else if(msg.getData("[chain]") != null){
// chain.doFilter(request, response);
// return;
// }
else {
resp.setStatus(404);
// resp.getWriter().print("404 - 3");
return;
}
} catch (Exception e) {
log.error("KFilter error!", e);
resp.setStatus(404);
resp.getWriter().print("500 - Error! please contact [email protected] ");
return;
}
}