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【Java】 cas sso跨域登录实例

作者:惉惉自喜 / 发布于2014/11/13/ 1159

用的cas得原生api，已在现网使用，此处传递密码并未加密，可以自行定义


	import static org.springframework.util.StringUtils.*;
	
	import java.util.Map;
	import java.util.Map.Entry;
	
	import javax.servlet.http.HttpServletRequest;
	import javax.servlet.http.HttpServletResponse;
	
	import org.jasig.cas.CentralAuthenticationService;
	import org.jasig.cas.authentication.AuthenticationException;
	import org.jasig.cas.authentication.UsernamePasswordCredential;
	import org.jasig.cas.authentication.principal.Service;
	import org.jasig.cas.authentication.principal.SimpleWebApplicationServiceImpl;
	import org.jasig.cas.ticket.Ticket;
	import org.jasig.cas.ticket.TicketException;
	import org.jasig.cas.ticket.TicketGrantingTicket;
	import org.jasig.cas.ticket.registry.TicketRegistry;
	import org.jasig.cas.web.support.CookieRetrievingCookieGenerator;
	import org.slf4j.Logger;
	import org.slf4j.LoggerFactory;
	import org.springframework.beans.factory.annotation.Autowired;
	import org.springframework.beans.factory.annotation.Qualifier;
	import org.springframework.beans.factory.annotation.Value;
	import org.springframework.web.bind.annotation.RequestMapping;
	import org.springframework.web.bind.annotation.RequestMethod;
	import org.springframework.web.bind.annotation.RestController;
	
	import com.google.common.collect.Maps;
	
	@RestController
	@RequestMapping(value = "/rest/login")
	public class RestLoginController {
	 private final Logger logger = LoggerFactory.getLogger(this.getClass());
	 @Autowired
	 @Qualifier("ticketGrantingTicketCookieGenerator")
	 private CookieRetrievingCookieGenerator tgtCookieGenerator;
	 @Autowired
	 private TicketRegistry ticketRegistry;
	 @Autowired
	 private CentralAuthenticationService centralAuthenticationService;
	 @Value("applicationProperties['cas.client.callback']")
	 private String DEFAULT_SERVICE;
	
	 @RequestMapping(method = RequestMethod.GET)
	 public String login(HttpServletRequest request, HttpServletResponse response, final String username, final String password, String service){
	 String tgtId = tgtCookieGenerator.retrieveCookieValue(request);
	 final Map<String,Object> result = Maps.newHashMap();
	 Ticket ticket = null;
	 if(hasText(tgtId)) {
	 ticket = ticketRegistry.getTicket(tgtId);
	 }
	 try {
	 if(ticket != null && !ticket.isExpired() && ticket instanceof TicketGrantingTicket) {
	 result.put("result", true);
	 result.put("st", centralAuthenticationService.grantServiceTicket(tgtId, getService(service)));
	 result.put("message", "TGT还未失效，授权service成功");
	 tgtCookieGenerator.addCookie(request, response, tgtId);
	 }else if(hasText(username) && hasText(password)) {
	 tgtId = centralAuthenticationService.createTicketGrantingTicket(new UsernamePasswordCredential(username, password));
	 result.put("result", true);
	 result.put("st", centralAuthenticationService.grantServiceTicket(tgtId, getService(service)));
	 result.put("message", "authentication success");
	 tgtCookieGenerator.addCookie(request, response, tgtId);
	 }else {
	 //验证出现异常，用户名密码错误
	 result.put("result", false);
	 result.put("message", "验证失败");
	 }
	 } catch (TicketException | AuthenticationException e) {
	 logger.error("tgt {} user {} 验证失败,{}", tgtId, username, e);
	 result.put("result", false);
	 result.put("message", "验证失败");
	 }
	 return constructResult(result);
	 }
	
	 private static String constructResult(Map<String, Object> result) {
	 //"success({'result':'failure'})"
	 StringBuilder sb = new StringBuilder("success({");
	 int i = 0;
	 for(Entry<String,Object> e:result.entrySet()) {
	 sb.append("'" + e.getKey() + "'" + ":" + "'" +e.getValue() + "'");
	 i++;
	 if(i != result.size()) {
	 sb.append(",");
	 }
	 }
	 sb.append("})");
	 return sb.toString();
	 }
	
	 public static void main(String[] s) {
	 final Map<String,Object> result = Maps.newHashMap();
	 result.put("result", true);
	 result.put("message", "TGT还未失效，授权service成功");
	 System.out.println(constructResult(result));
	 }
	
	 private Service getService(String service) {
	 if(isEmpty(service)) {
	 service = DEFAULT_SERVICE;
	 }
	 return new SimpleWebApplicationServiceImpl(service);
	 }
	}

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