package com.yxt;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import sun.misc.BASE64Decoder;
@WebServlet("/BasicAuth")
public class HTTPAuthServlet extends HttpServlet {
/**
*
*/
private static final long serialVersionUID = 4299756236906696361L;
public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
String sessionAuth = (String) request.getSession().getAttribute("auth");
if (sessionAuth != null) {
System.out.println("this is next step");
nextStep(request, response);
} else {
if(!checkHeaderAuth(request, response)){
response.setStatus(401);
response.setHeader("Cache-Control", "no-store");
response.setDateHeader("Expires", 0);
response.setHeader("WWW-authenticate", "Basic Realm=\"test\"");
}
}
}
private boolean checkHeaderAuth(HttpServletRequest request, HttpServletResponse response) throws IOException {
String auth = request.getHeader("Authorization");
// String auth = "aaa";
System.out.println("auth encoded in base64 is " + getFromBASE64(auth));
if ((auth != null) && (auth.length() > 6)) {
auth = auth.substring(6, auth.length());
String decodedAuth = getFromBASE64(auth);
System.out.println("auth decoded from base64 is " + decodedAuth);
request.getSession().setAttribute("auth", decodedAuth);
return true;
}else{
return false;
}
}
private String getFromBASE64(String s) {
if (s == null)
return null;
BASE64Decoder decoder = new BASE64Decoder();
try {
byte[] b = decoder.decodeBuffer(s);
return new String(b);
} catch (Exception e) {
return null;
}
}
public void nextStep(HttpServletRequest request, HttpServletResponse response) throws IOException {
PrintWriter pw = response.getWriter();
pw.println("<html> next step, authentication is : " + request.getSession().getAttribute("auth") + "<br>");
pw.println("<br></html>");
}
public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException {
doGet(request, response);
}
}
basicAuthTest-server.zip （11个子文件） 
src com yxt 
HTTPAuthServlet.java 3KB .classpath 820B build classes com yxt HTTPAuthServlet.class 3KB .settings org.eclipse.wst.jsdt.ui.superType.container 49B org.eclipse.wst.common.project.facet.core.xml 305B org.eclipse.wst.jsdt.ui.superType.name 6B org.eclipse.wst.common.component 512B .jsdtscope 567B org.eclipse.jdt.core.prefs 364B WebContent META-INF MANIFEST.MF 39B WEB-INF lib .project 920B资源评论
