跨服務器登錄驗證(單點登錄SSO)的過程和Java實現(xiàn)

1、跨服務器登錄驗證(單點登錄SSO的過 程和Java實現(xiàn)收藏如果我們的網(wǎng)站需要和另一個域名做統(tǒng)一認證，也就是在我們網(wǎng)站登錄，但真正 的功能卻在另一個網(wǎng)站來提供。許多都以passport的方式。整個認證可以分三步完成 第一步：本地驗證這個很簡單，輸入本地的用戶名和密碼，然后服務器認證通過，并返回正確的Cookie;第二步：做遠程認證，并返回遠程連接通過本地Cookie,確認用戶合法性，然后服務器端調用遠程的登錄程序，返回一個遠程認證號的URL這個URL里面包含了一個唯一的認證碼，使用Location的方式第三步：遠程登錄客戶端使用前一步的URL,訪問遠程的服務器，服務器確認認證碼的正確性，再返回正

2、確的遠程Cookie.至此，本地認證，通過一個 URL,實現(xiàn)了遠程認證。以下是示范代碼，是Verycd的武林英雄的認證過程，其登錄服務是verycd提供 的，而真實服務時9wee提供的package org.javare n.hero;import java.io.BufferedReader;import java.io .In putStream;import java.i o.ln putStreamReader;import java.io.OutputStream;import java .n et.Socket;import java .n et.URLE ncoder;impor

3、t java.util.Sca nner;/*跨服務器登錄驗證(單點登錄SSO的過程和Java實現(xiàn)* author JAVA 世紀網(wǎng)(, )*/public class Logi n public static String getCookie() System.out.print(”輸入用戶名:");Scanner in = new Scann er(System.i n);Stri ng user name = in.n ext();System.out.print("輸入密碼:");Stri ng password = in.n ext();try / 本地

4、認證String cookie = postLog in( user name, password);if (cookie = n ull) return n ull;/服務器遠程認證String url = getLog in 2(cookie);if (url = n ull) return n ull;/遠程訪問認證String cookie2 =getLog in 3(url.substri ng(”" .len gth();/ System.out.pri ntl n( cookie2);retur n cookie2; catch (Excepti on ex) ex.p

5、ri ntStackTrace();return nu II;private static String postLogi n( Stri nguser name, String password) throwsExcepti on Socket socket = new Socket("", 80);try Stri ngBuilder sb = new Stri ngBuilder();sb.appe nd("POST /sig nin? f=out HTTP/1.1rn");sb.appe nd("Host: r n");sb.

6、appe nd("User-Age nt: Mozilla/5.0 (Wi ndows; U; Win dows NT 5.1;zh-CN; rv:) Gecko/20090824 Firefox/3.5.3rn");sb.appe nd("Accept:text/html,applicati on /xhtml+xml,applicatio n/xml;q=0.9,*/*;q=0.8rn");sb.appe nd("Accept-La nguage: zh-c n, zh;q=0.5r n");sb.appe nd(&

7、quot;Accept-E ncodi ng: gzip,deflater n");sb.append("Accept-Charset: GB2312,utf-8;q=0.7,*;q=0.7rn");sb.appe nd("Referer: n”)；sb.appe nd("C onten t-Type: application/x-www-form-urlencodedrn");String data = "ru=http%3A%2F%2F%2F3rdServices%2F50hero&login_submi t=%

8、E7%99%BB%E5%BD%95&username="+ URLEncoder.encode(username, "UTF-8") + "&password=" + URLEncoder.encode(password, "UTF-8");sb.append("Content-Length: " + data.getBytes("UTF-8").length + "rn");sb.append("rn");sb.append(d

9、ata);OutputStream os = socket.getOutputStream();os.write(sb.toString().getBytes("UTF-8");os.flush();InputStream is = socket.getInputStream();BufferedReader reader = new BufferedReader(newInputStreamReader(is, "UTF-8"); / 讀取結果String line;StringBuilder cookieSb = new StringBuilder(

10、);int index;while (line = reader.readLine() != null) if (line.startsWith("Set-Cookie:") if (!line.contains("=deleted;") index = line.indexOf("");if (index > 12) cookieSb.append(line.substring(12, index + 1); else if (line.startsWith("location:") if (line.co

11、ntains("error_code") return null;is.close();reader.close();return cookieSb.toString(); finally socket.close();private static String getLogin2(String cookie) throws Exception Socket socket = new Socket("", 80);try StringBuilder sb = new StringBuilder();sb.appe nd("GET/sig nin

12、 ?ak=50hero&ru=http%3A%2F%2F%2Fpassport.php HTTP/1.1rn");sb.appe nd("Host: r n");sb.appe nd("User-Age nt: Mozilla/5.0 (Wi ndows; U; Win dows NT 5.1;zh-CN; rv:) Gecko/20090824 Firefox/3.5.3rn");sb.appe nd("Accept:text/html,applicati on /xhtml+xml,applicatio n/

13、xml;q=0.9,*/*;q=0.8rn");sb.appe nd("Accept-La nguage: zh-c n, zh;q=0.5r n");sb.appe nd("Accept-E ncodi ng: gzip,deflater n");sb.append("Accept-Charset: GB2312,utf-8;q=0.7,*;q=0.7rn");sb.appe nd("Referer: n”)；sb.ap pe nd("Cookie: " + cookie + "rn

14、");sb.appe nd("r n");OutputStream os = socket.getOutputStream();os.write(sb.toStri ng().getBytes("UTF-8");os.flush();In putStream is = socket.getI nputStream();BufferedReader reader = new BufferedReader( newIn putStreamReader(is, "UTF-8"); /讀取結果Stri ng line;while (

15、line = reader.readLine() != null) if (li ne.startsWith("locatio n:") retur n lin e.substri ng(10);is.close();reader.close();return nu II; fin ally socket.close();private static String getLogin3(String url) throws Exception Socket socket = new Socket("", 80);try Stri ngBuilder sb

16、= new Stri ngBuilder();sb.appe nd("GET " + url + " HTTP/1.1rn");sb.appe nd("Host: r n");sb.appe nd("User-Age nt: Mozilla/5.0 (Wi ndows; U; Win dows NT 5.1;zh-CN; rv:) Gecko/20090824 Firefox/3.5.3rn");sb.appe nd("Accept:text/html,applicati on /xhtml

17、+xml,applicatio n/xml;q=0.9,*/*;q=0.8r n");sb.appe nd("Accept-La nguage: zh-c n, zh;q=0.5r n");sb.appe nd("Accept-E ncodi ng: gzip,deflater n");sb.append("Accept-Charset: GB2312,utf-8;q=0.7,*;q=0.7rn");sb.appe nd("Referer: n”)；sb.appe nd("r nrn");Out

18、putstream os = socket.getOutputStream();os.write(sb.toStri ng().getBytes("UTF-8");os.flush();In putStream is = socket.getI nputStream();BufferedReader reader = new BufferedReader( newIn putStreamReader(is, "UTF-8"); /讀取結果Stri ng line;Stri ngBuilder cookieSb = new Stri ngBuilder();int in dex;while (line = reade