我正在使用JAVA学习Rest api，除了身份验证之外，我已经完成了大部分工作。我创建了两个java Web服务buyerservice和sellerservice。在内部有许多具有特定路径的子服务。
我想为上述服务创建单独的身份验证，以便卖家可以访问卖家服务，买家可以访问买家服务。截至目前，我已为上述每项服务创建了一个过滤器类和两个身份验证服务类BuyerAuthService和SellerAuthService。在身份验证后的登录servlet中，我将用户名和密码的编码base64值添加到＆＃34;授权＆＃34;下的cookie中。标签。因此，每次在过滤器类中，它都会获取cookie并验证它们。
这是过滤器类：
package com.shopping.client;
import java.io.IOException;
import java.util.Base64;
import java.util.StringTokenizer;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class RestAuthenticationFilter implements javax.servlet.Filter {
public static final String AUTHENTICATION_HEADER = "Authorization";
@Override
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain filter) throws IOException, ServletException {
if (request instanceof HttpServletRequest) {
HttpServletRequest httpServletRequest = (HttpServletRequest) request;
Cookie[] cookies = httpServletRequest.getCookies();
String authCredentials = "";
for (int i = 0; i < cookies.length; i++) {
String name = cookies[i].getName();
String value = cookies[i].getValue();
if(name.equals(AUTHENTICATION_HEADER)){
authCredentials = value;
}
}
//System.out.println(authCredentials);
// better injected
final String encodedUserPassword = authCredentials.replaceFirst("Basic"
+ " ", "");
String usernameAndPassword = null;
try {
byte[] decodedBytes = Base64.getDecoder().decode(
encodedUserPassword);
usernameAndPassword = new String(decodedBytes, "UTF-8");
} catch (IOException e) {
e.printStackTrace();
}
final StringTokenizer tokenizer = new StringTokenizer(
usernameAndPassword, ":");
final String username = tokenizer.nextToken();
final String password = tokenizer.nextToken();
boolean authenticationStatus = false;
if(username.equals("buyerservice")){
BuyerAuthService buyAuth = new BuyerAuthService();
authenticationStatus = buyAuth.authenticate(username, password);
}
else if(username.equals("sellerservice"))
{
SellerAuthService sellAuth = new SellerAuthService();
authenticationStatus = sellAuth.authenticate(username, password);
}
if (authenticationStatus) {
filter.doFilter(request, response);
} else {
if (response instanceof HttpServletResponse) {
HttpServletResponse httpServletResponse = (HttpServletResponse) response;
httpServletResponse
.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
}
}
}
}
@Override
public void destroy() {
}
@Override
public void init(FilterConfig arg0) throws ServletException {
}
}
这是我的买方身份验证服务类方法：
public class BuyerAuthService {
public boolean authenticate(String username, String password) {
if (null == username)
return false;
boolean authenticationStatus = "buyerservice".equals(username)
&& "buyerservice".equals(password);
return authenticationStatus;
}
}
卖家身份验证服务与上述相同，但更改了用户名和密码。
我的loginservlet是：
String authStringEnc = Base64.getEncoder().encodeToString(authString.getBytes("utf-8"));
System.out.println("Base64 encoded auth string: " + authStringEnc);
if(username.equals("sellerservice")){
SellerAuthService sellAuth = new SellerAuthService();
if(sellAuth.authenticate(username, password)){
Cookie cookie = new Cookie("Authorization", authStringEnc);
response.addCookie(cookie);
System.out.println("HeaderSet");
response.sendRedirect(URL);
}
else{
response.sendError(404, "Wrong username password combination");
}
}
else if(username.equals("buyerservice")){
BuyerAuthService buyAuth = new BuyerAuthService();
if(buyAuth.authenticate(username, password)){
Cookie cookie = new Cookie("Authorization", authStringEnc);
response.addCookie(cookie);
System.out.println("HeaderSet");
response.sendRedirect(URL);
}
else{
response.sendError(404, "Wrong username password combination");
}
}
else{
response.sendError(404, "Username doesn't exists");
}
我从登录表单中获取了用户名和密码。
上述过滤器类的问题是即使我已登录sellerservice，并尝试访问buyerservice uris，我也可以访问它。
但我希望将它们重定向到未经授权的html页面。因为我被困在这里，请给出建议和帮助。由于我是认证新手，任何适当的指导对我都有帮助。在此先感谢。！
答案 0 :(得分：0)
我为每个服务添加了单独的过滤器，并在web.xml文件中添加了相同的过滤器信息。
我的web.xml文件是
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>ElectronicsShopping</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>LoginServlet.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>Electronic Shopping</servlet-name>
<servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>jersey.config.server.provider.packages</param-name>
<param-value>com.shopping.client,com.jersey.jaxb,com.fasterxml.jackson.jaxrs.json</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Electronic Shopping</servlet-name>
<url-pattern>/rest/*</url-pattern>
</servlet-mapping>
<filter>
<filter-name>SellerAuthenticationFilter</filter-name>
<filter-class>com.shopping.client.SellerAuthenticationFilter</filter-class>
</filter>
<filter>
<filter-name>BuyerAuthenticationFilter</filter-name>
<filter-class>com.shopping.client.BuyerAuthenticationFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>SellerAuthenticationFilter</filter-name>
<url-pattern>/rest/sellerservice/*</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>BuyerAuthenticationFilter</filter-name>
<url-pattern>/rest/buyerservice/*</url-pattern>
</filter-mapping>
</web-app>