【发布时间】：2018-05-09 03:47:28
【问题描述】：
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。我创建了两个 java web 服务buyerservice 和sellerservice。里面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。到目前为止，我已经为上述每个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“授权”标签下的 cookie 中。因此，每次在过滤器类中，它都会获取 cookie 并对其进行验证。
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 {
}
}
这是我的买家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;
}
}
卖家身份验证服务同上，只是用户名和密码等变化。
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我的用户名和密码。
上述过滤器类的问题是即使我登录到sellerservice，并尝试访问buyerservice uris，我也能够访问它。
但我希望他们被重定向到未经授权的 html 页面。当我被困在这里时，请提供建议和帮助。由于我不熟悉身份验证，因此任何适当的指导对我也有帮助。提前致谢！
【问题讨论】：
标签： java rest authentication cookies