com.github.quartzwebui.http.ResourceServlet Maven / Gradle / Ivy
The newest version!
/**
* Licensed under the Apache License, Version 2.0 (the "License");
*/
package com.github.quartzwebui.http;
import com.github.quartzwebui.utils.IOUtils;
import com.github.quartzwebui.utils.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
/**
* 负责处理资源转发servlet
*
* @author quxiucheng [[email protected]]
*/
abstract class ResourceServlet extends HttpServlet {
private static final Logger logger = LoggerFactory.getLogger(ResourceServlet.class);
/**
* 静态资源路径
*/
private String resourcePath = "html";
/**
* 业务处理路径前缀
*/
private String servicePathPrefix = "/api/";
public static final String SESSION_USER_KEY = "quartz-webui-user";
public static final String INIT_NAME_USER = "quartWebUIUser";
public static final String PARAM_NAME_USERNAME = "loginUsername";
public static final String PARAM_NAME_PASSWORD = "loginPassword";
public static final String PARAM_NAME_ALLOW = "allow";
public static final String PARAM_NAME_DENY = "deny";
public static final String PARAM_REMOTE_ADDR = "remoteAddress";
/**
* 用户信息
*/
protected Map userInfo = new HashMap();
public void init() throws ServletException {
super.init();
initAuth();
}
/**
* 初始化权限信息
*/
private void initAuth() {
// 获取用户配置信息
String quartWebUIUser = getInitParameter(INIT_NAME_USER);
if (!StringUtils.isEmpty(quartWebUIUser)) {
String[] quartWebUIUsers = quartWebUIUser.split(";");
if (quartWebUIUsers.length > 0) {
for (String webUIUser : quartWebUIUsers) {
String[] webUIUserInfo = webUIUser.split(":");
if (webUIUserInfo.length != 2) {
throw new IllegalArgumentException("quartWebUIUser format exception.form username:password;username:password");
}
userInfo.put(webUIUserInfo[0], webUIUserInfo[1]);
}
}
}
}
/**
* 复写父类service方法，进行请求转发
*
* @param request 请求
* @param response 应答
* @throws ServletException 异常
* @throws IOException 异常
*/
public void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 项目根路径
String contextPath = request.getContextPath();
// servlet访问路径
String servletPath = request.getServletPath();
// 访问全路径
String requestURI = request.getRequestURI();
// 设置编码
response.setCharacterEncoding("utf-8");
// 根目录为空的情况为，root context
if (contextPath == null) {
contextPath = "";
}
String uri = contextPath + servletPath;
String path = requestURI.substring(contextPath.length() + servletPath.length());
if ("/submitLogin".equals(path)) {
String usernameParam = request.getParameter(PARAM_NAME_USERNAME);
String passwordParam = request.getParameter(PARAM_NAME_PASSWORD);
if (this.userInfo.containsKey(usernameParam) && this.userInfo.get(usernameParam).equals(passwordParam)) {
request.getSession().setAttribute(SESSION_USER_KEY, usernameParam);
response.getWriter().print("success");
} else {
response.getWriter().print("error");
}
return;
}
if (isRequireAuth() //
&& !containsUser(request)//
&& !checkLoginParam(request)//
&& !("/login.html".equals(path) //
|| path.startsWith("/css")//
|| path.startsWith("/js") //
|| path.startsWith("/img"))) {
if (contextPath.equals("") || contextPath.equals("/")) {
response.sendRedirect(servletPath + "/login.html");
return;
} else {
if (uri.endsWith("/")) {
response.sendRedirect(uri + "login.html");
} else {
response.sendRedirect(uri + "/login.html");
}
return;
}
}
if ("".equals(path)) {
if (contextPath.equals("") || contextPath.equals("/")) {
response.sendRedirect(servletPath + "/index.html");
} else {
response.sendRedirect(requestURI + "/index.html");
}
return;
}
if ("/".equals(path)) {
response.sendRedirect("index.html");
return;
}
if (path.startsWith(servicePathPrefix)) {
//String fullUrl = path;
/*if (request.getQueryString() != null && request.getQueryString().length() > 0) {
fullUrl += "?" + request.getQueryString();
}*/
response.getWriter().print(this.process(path, request, response));
return;
}
// 其他
this.returnResourceFile(path, uri, response);
}
/**
* 返回资源文件
*
* @param fileName 文件名
* @param uri uri
* @param response 应答
* @throws ServletException etException 异常
* @throws IOException 异常
*/
protected void returnResourceFile(String fileName, String uri, HttpServletResponse response)
throws ServletException, IOException {
String filePath = getFilePath(fileName);
// HTML文件
if (filePath.endsWith(".html")) {
response.setContentType("text/html; charset=utf-8");
}
// 获取资源文件
String text = IOUtils.readFromResource(filePath);
if (text == null) {
// 没有资源直接返回到主页，结束以下代码，提高效率
response.sendRedirect(uri + "/index.html");
return;
}
// css文件
if (fileName.endsWith(".css")) {
response.setContentType("text/css;charset=utf-8");
}
// js文件
if (fileName.endsWith(".js")) {
response.setContentType("text/javascript;charset=utf-8");
}
// jsp文件
if (fileName.endsWith(".jpg")) {
byte[] bytes = IOUtils.readByteArrayFromResource(filePath);
if (bytes != null) {
response.getOutputStream().write(bytes);
}
return;
}
if (fileName.endsWith(".eot") || fileName.endsWith(".svg") || fileName.endsWith(".ttf")
|| fileName.endsWith(".woff") || fileName.endsWith(".woff2")) {
byte[] bytes = IOUtils.readByteArrayFromResource(filePath);
if (bytes != null) {
response.getOutputStream().write(bytes);
}
return;
}
response.getWriter().write(text);
}
public boolean containsUser(HttpServletRequest request) {
HttpSession session = request.getSession(false);
return session != null && session.getAttribute(SESSION_USER_KEY) != null;
}
public boolean checkLoginParam(HttpServletRequest request) {
String usernameParam = request.getParameter(PARAM_NAME_USERNAME);
String passwordParam = request.getParameter(PARAM_NAME_PASSWORD);
if(null == this.userInfo.get(usernameParam)){
return false;
} else if (this.userInfo.containsKey(usernameParam) && this.userInfo.get(usernameParam).equals(passwordParam)) {
return true;
}
return false;
}
public boolean isRequireAuth() {
return this.userInfo.size() != 0;
}
/**
* 获取某个文件的资源路径
*
* @param fileName 文件名
* @return 资源路径 + 文件名
*/
protected String getFilePath(String fileName) {
return getResourcePath() + fileName;
}
/**
* 获取资源路径
*
* @return 资源路径
*/
public String getResourcePath() {
return resourcePath;
}
/**
* 设置资源路径
*
* @param resourcePath 资源路径
*/
public void setResourcePath(String resourcePath) {
this.resourcePath = resourcePath;
}
/**
* 获取业务处理路径前缀
*
* @return 业务处理路径前缀
*/
public String getServicePathPrefix() {
return servicePathPrefix;
}
/**
* 设置业务处理路径前缀
*
* @param servicePathPrefix 业务处理路径前缀
*/
public void setServicePathPrefix(String servicePathPrefix) {
this.servicePathPrefix = servicePathPrefix;
}
/**
* 实际处理业务详情
*/
protected abstract String process(String fullUrl, HttpServletRequest request, HttpServletResponse response);
}
© 2015 - 2025 Weber Informatics LLC | Privacy Policy