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spring security進(jìn)級(jí)篇VI JCaptcha驗(yàn)證編碼的使用

 WindySky 2017-08-01

在spring security中，可以結(jié)合jcaptcha進(jìn)行使用，具體方法如下：

1.java類如下：

Java代碼  收藏代碼
  1. package com.spring.security.jcaptcha;  
  2.   
  3. import java.awt.Color;  
  4. import java.awt.Font;  
  5. import java.awt.image.ImageFilter;  
  6.   
  7. import com.octo.captcha.component.image.backgroundgenerator.BackgroundGenerator;  
  8. import com.octo.captcha.component.image.backgroundgenerator.UniColorBackgroundGenerator;  
  9. import com.octo.captcha.component.image.color.RandomListColorGenerator;  
  10. import com.octo.captcha.component.image.deformation.ImageDeformation;  
  11. import com.octo.captcha.component.image.deformation.ImageDeformationByFilters;  
  12. import com.octo.captcha.component.image.fontgenerator.FontGenerator;  
  13. import com.octo.captcha.component.image.fontgenerator.RandomFontGenerator;  
  14. import com.octo.captcha.component.image.textpaster.DecoratedRandomTextPaster;  
  15. import com.octo.captcha.component.image.textpaster.TextPaster;  
  16. import com.octo.captcha.component.image.textpaster.textdecorator.TextDecorator;  
  17. import com.octo.captcha.component.image.wordtoimage.DeformedComposedWordToImage;  
  18. import com.octo.captcha.component.image.wordtoimage.WordToImage;  
  19. import com.octo.captcha.component.word.FileDictionary;  
  20. import com.octo.captcha.component.word.wordgenerator.ComposeDictionaryWordGenerator;  
  21. import com.octo.captcha.component.word.wordgenerator.WordGenerator;  
  22. import com.octo.captcha.engine.image.ListImageCaptchaEngine;  
  23. import com.octo.captcha.image.gimpy.GimpyFactory;  
  24.   
  25. /** 
  26.  * JCaptcha驗(yàn)證碼圖片生成引擎, 仿照J(rèn)Captcha2.0編寫類似GMail驗(yàn)證碼的樣式. 
  27.  */  
  28. public class GMailEngine extends ListImageCaptchaEngine {  
  29.   
  30.     @Override  
  31.     protected void buildInitialFactories() {  
  32.   
  33.         // 圖片和字體大小設(shè)置  
  34.         int minWordLength = 4;  
  35.         int maxWordLength = 5;  
  36.         int fontSize = 20;  
  37.         int imageWidth = 100;  
  38.         int imageHeight = 36;  
  39.   
  40.         WordGenerator dictionnaryWords = new ComposeDictionaryWordGenerator(  
  41.                 new FileDictionary("toddlist"));  
  42.   
  43.         // word2image components  
  44.         TextPaster randomPaster = new DecoratedRandomTextPaster(minWordLength,  
  45.                 maxWordLength, new RandomListColorGenerator(new Color[] {  
  46.                         new Color(23, 170, 27), new Color(220, 34, 11),  
  47.                         new Color(23, 67, 172) }), new TextDecorator[] {});  
  48.         BackgroundGenerator background = new UniColorBackgroundGenerator(  
  49.                 imageWidth, imageHeight, Color.white);  
  50.         FontGenerator font = new RandomFontGenerator(fontSize, fontSize,  
  51.                 new Font[] { new Font("nyala", Font.BOLD, fontSize),  
  52.                         new Font("Bell MT", Font.PLAIN, fontSize),  
  53.                         new Font("Credit valley", Font.BOLD, fontSize) });  
  54.           
  55.         ImageDeformation postDef = new ImageDeformationByFilters(  
  56.                 new ImageFilter[] {});  
  57.         ImageDeformation backDef = new ImageDeformationByFilters(  
  58.                 new ImageFilter[] {});  
  59.         ImageDeformation textDef = new ImageDeformationByFilters(  
  60.                 new ImageFilter[] {});  
  61.   
  62.         WordToImage word2image = new DeformedComposedWordToImage(font,  
  63.                 background, randomPaster, backDef, textDef, postDef);  
  64.           
  65.         addFactory(new GimpyFactory(dictionnaryWords, word2image));  
  66.     }  
  67.   
  68. }  

 

過(guò)濾器如下：

Java代碼  收藏代碼
  1. package com.spring.security.jcaptcha;  
  2.   
  3. import java.awt.image.BufferedImage;  
  4. import java.io.IOException;  
  5.   
  6. import javax.imageio.ImageIO;  
  7. import javax.servlet.Filter;  
  8. import javax.servlet.FilterChain;  
  9. import javax.servlet.FilterConfig;  
  10. import javax.servlet.ServletException;  
  11. import javax.servlet.ServletOutputStream;  
  12. import javax.servlet.ServletRequest;  
  13. import javax.servlet.ServletResponse;  
  14. import javax.servlet.http.HttpServletRequest;  
  15. import javax.servlet.http.HttpServletResponse;  
  16.   
  17. import org.apache.commons.lang.StringUtils;  
  18. import org.apache.log4j.Logger;  
  19. import org.springframework.context.ApplicationContext;  
  20. import org.springframework.web.context.support.WebApplicationContextUtils;  
  21.   
  22. import com.octo.captcha.service.CaptchaService;  
  23. import com.octo.captcha.service.CaptchaServiceException;  
  24.   
  25. /** 
  26.  * 針對(duì) JCaptcha 專門的過(guò)濾器(Filter) 
  27.  *  
  28.  */  
  29. public class JCaptchaFilter implements Filter {  
  30.   
  31.     // web.xml中的參數(shù)名定義  
  32.     public static final String PARAM_CAPTCHA_PARAMTER_NAME = "captchaParamterName";  
  33.     public static final String PARAM_CAPTCHA_SERVICE_ID = "captchaServiceId";  
  34.     public static final String PARAM_FILTER_PROCESSES_URL = "filterProcessesUrl";  
  35.     public static final String PARAM_FAILURE_URL = "failureUrl";  
  36.     public static final String PARAM_AUTO_PASS_VALUE = "autoPassValue";  
  37.   
  38.     // 默認(rèn)值定義  
  39.     public static final String DEFAULT_FILTER_PROCESSES_URL = "/j_spring_security_check";  
  40.     public static final String DEFAULT_CAPTCHA_SERVICE_ID = "captchaService";  
  41.     public static final String DEFAULT_CAPTCHA_PARAMTER_NAME = "j_captcha";  
  42.   
  43.     protected static Logger logger = Logger.getLogger("service");  
  44.   
  45.     private String failureUrl;  
  46.     private String filterProcessesUrl = DEFAULT_FILTER_PROCESSES_URL;  
  47.     private String captchaServiceId = DEFAULT_CAPTCHA_SERVICE_ID;  
  48.     private String captchaParamterName = DEFAULT_CAPTCHA_PARAMTER_NAME;  
  49.     private String autoPassValue;  
  50.   
  51.     private CaptchaService captchaService;  
  52.   
  53.     /** 
  54.      * Filter回調(diào)初始化函數(shù). 
  55.      */  
  56.     public void init(FilterConfig filterConfig) throws ServletException {  
  57.         // TODO Auto-generated method stub  
  58.           
  59.         initParameters(filterConfig);  
  60.         initCaptchaService(filterConfig);  
  61.     }  
  62.   
  63.     public void doFilter(ServletRequest theRequest,ServletResponse theResponse, FilterChain chain) throws IOException,  
  64.             ServletException {  
  65.           
  66.         HttpServletRequest request = (HttpServletRequest) theRequest;  
  67.         HttpServletResponse response = (HttpServletResponse) theResponse;  
  68.         String servletPath = request.getServletPath();  
  69.           
  70.         // 符合filterProcessesUrl為驗(yàn)證處理請(qǐng)求,其余為生成驗(yàn)證圖片請(qǐng)求.  
  71.         if (StringUtils.startsWith(servletPath, filterProcessesUrl)) {  
  72.             boolean validated = validateCaptchaChallenge(request);  
  73.             if (validated) {  
  74.                 chain.doFilter(request, response);  
  75.             } else {  
  76.                 redirectFailureUrl(request, response);  
  77.             }  
  78.         } else {  
  79.             genernateCaptchaImage(request, response);  
  80.         }  
  81.     }  
  82.   
  83.     /** 
  84.      * Filter回調(diào)退出函數(shù). 
  85.      */  
  86.     public void destroy() {  
  87.         // TODO Auto-generated method stub  
  88.     }  
  89.   
  90.     /** 
  91.      * 初始化web.xml中定義的filter init-param. 
  92.      */  
  93.     protected void initParameters(final FilterConfig fConfig) {  
  94.           
  95.         if (StringUtils.isBlank(fConfig.getInitParameter(PARAM_FAILURE_URL))) {  
  96.             throw new IllegalArgumentException("CaptchaFilter缺少failureUrl參數(shù)");  
  97.         }  
  98.   
  99.         failureUrl = fConfig.getInitParameter(PARAM_FAILURE_URL);  
  100.   
  101.         if (StringUtils.isNotBlank(fConfig  
  102.                 .getInitParameter(PARAM_FILTER_PROCESSES_URL))) {  
  103.             filterProcessesUrl = fConfig  
  104.                     .getInitParameter(PARAM_FILTER_PROCESSES_URL);  
  105.         }  
  106.   
  107.         if (StringUtils.isNotBlank(fConfig  
  108.                 .getInitParameter(PARAM_CAPTCHA_SERVICE_ID))) {  
  109.             captchaServiceId = fConfig  
  110.                     .getInitParameter(PARAM_CAPTCHA_SERVICE_ID);  
  111.         }  
  112.   
  113.         if (StringUtils.isNotBlank(fConfig  
  114.                 .getInitParameter(PARAM_CAPTCHA_PARAMTER_NAME))) {  
  115.             captchaParamterName = fConfig  
  116.                     .getInitParameter(PARAM_CAPTCHA_PARAMTER_NAME);  
  117.         }  
  118.   
  119.         if (StringUtils.isNotBlank(fConfig  
  120.                 .getInitParameter(PARAM_AUTO_PASS_VALUE))) {  
  121.             autoPassValue = fConfig.getInitParameter(PARAM_AUTO_PASS_VALUE);  
  122.         }  
  123.     }  
  124.   
  125.     /** 
  126.      * 從ApplicatonContext獲取CaptchaService實(shí)例. 
  127.      */  
  128.     protected void initCaptchaService(final FilterConfig fConfig) {  
  129.           
  130.         ApplicationContext context = WebApplicationContextUtils  
  131.                 .getWebApplicationContext(fConfig.getServletContext());  
  132.         captchaService = (CaptchaService) context.getBean(captchaServiceId);  
  133.     }  
  134.   
  135.     /** 
  136.      * 生成驗(yàn)證碼圖片. 
  137.      */  
  138.     protected void genernateCaptchaImage(final HttpServletRequest request,  
  139.             final HttpServletResponse response) throws IOException {  
  140.   
  141.         setDisableCacheHeader(response);  
  142.         response.setContentType("image/jpeg");  
  143.   
  144.         ServletOutputStream out = response.getOutputStream();  
  145.         try {  
  146.             String captchaId = request.getSession(true).getId();  
  147.             BufferedImage challenge = (BufferedImage) captchaService  
  148.                     .getChallengeForID(captchaId, request.getLocale());  
  149.             ImageIO.write(challenge, "jpg", out);  
  150.             out.flush();  
  151.         } catch (CaptchaServiceException e) {  
  152.             logger.error(e.getMessage(), e);  
  153.         } finally {  
  154.             if(out!=null){  
  155.                 out.close();  
  156.             }  
  157.         }  
  158.     }  
  159.   
  160.     /** 
  161.      * 驗(yàn)證驗(yàn)證碼. 
  162.      */  
  163.     protected boolean validateCaptchaChallenge(final HttpServletRequest request) {  
  164.           
  165.         try {  
  166.               
  167.             String captchaID = request.getSession().getId();  
  168.             String challengeResponse = request  
  169.                     .getParameter(captchaParamterName);  
  170.             // 自動(dòng)通過(guò)值存在時(shí),檢驗(yàn)輸入值是否等于自動(dòng)通過(guò)值  
  171.             if (StringUtils.isNotBlank(autoPassValue)&& autoPassValue.equals(challengeResponse)) {  
  172.                   
  173.                 return true;  
  174.             }  
  175.               
  176.             return captchaService.validateResponseForID(captchaID,challengeResponse);  
  177.         } catch (CaptchaServiceException e) {  
  178.             logger.error(e.getMessage(), e);  
  179.             return false;  
  180.         }  
  181.     }  
  182.   
  183.     /** 
  184.      * 跳轉(zhuǎn)到失敗頁(yè)面. 
  185.      *  
  186.      * 可在子類進(jìn)行擴(kuò)展, 比如在session中放入SpringSecurity的Exception. 
  187.      */  
  188.     protected void redirectFailureUrl(final HttpServletRequest request,final HttpServletResponse response) throws IOException {  
  189.           
  190.         response.sendRedirect(request.getContextPath() + failureUrl);  
  191.     }  
  192.   
  193.     /** 
  194.      * 設(shè)置禁止客戶端緩存的Header. 
  195.      */  
  196.     public static void setDisableCacheHeader(HttpServletResponse response) {  
  197.         // Http 1.0 header  
  198.         response.setDateHeader("Expires", 1L);  
  199.         response.addHeader("Pragma", "no-cache");  
  200.         // Http 1.1 header  
  201.         response.setHeader("Cache-Control", "no-cache, no-store, max-age=0");  
  202.     }  
  203. }  

 

web.xml 配置如下：

Xml代碼  收藏代碼
  1. <?xml version="1.0" encoding="UTF-8"?>  
  2. <web-app xmlns:xsi="http://www./2001/XMLSchema-instance" xmlns="http://java./xml/ns/javaee" xmlns:web="http://java./xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java./xml/ns/javaee http://java./xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">  
  3.   <display-name>springSecurityIII</display-name>  
  4.     
  5.     <!--******************************** -->  
  6.     <!--*******log4j日志信息的配置****** -->  
  7.     <!--******************************* -->  
  8.     <context-param>  
  9.         <param-name>log4jConfigLocation</param-name>  
  10.         <param-value>classpath:log4j.xml</param-value>  
  11.     </context-param>  
  12.     <!--Spring默認(rèn)刷新Log4j配置文件的間隔,單位為millisecond，可以不設(shè)置 -->  
  13.     <context-param>  
  14.         <param-name>log4jRefreshInterval</param-name>  
  15.         <param-value>60000</param-value>  
  16.     </context-param>  
  17.   
  18.     <!--******************************** -->  
  19.     <!--*******spring bean的配置******** -->  
  20.     <!--******************************* -->  
  21.     <context-param>  
  22.         <param-name>contextConfigLocation</param-name>  
  23.         <param-value>classpath:applicationContext.xml</param-value>  
  24.     </context-param>  
  25.       
  26.     <listener>  
  27.         <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>  
  28.     </listener>  
  29.     <listener>  
  30.         <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  
  31.     </listener>  
  32.     <listener>  
  33.         <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>  
  34.     </listener>  
  35.       
  36.     <!--******************************** -->  
  37.     <!--*******字符集 過(guò)濾器************ -->  
  38.     <!--******************************* -->  
  39.     <filter>  
  40.         <filter-name>CharacterEncodingFilter</filter-name>  
  41.         <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>  
  42.         <init-param>  
  43.             <param-name>encoding</param-name>  
  44.             <param-value>UTF-8</param-value>  
  45.         </init-param>  
  46.         <init-param>  
  47.             <param-name>forceEncoding</param-name>  
  48.             <param-value>true</param-value>  
  49.         </init-param>  
  50.     </filter>  
  51.     <filter-mapping>  
  52.         <filter-name>CharacterEncodingFilter</filter-name>  
  53.         <url-pattern>/*</url-pattern>  
  54.     </filter-mapping>  
  55.   
  56.     <!--******************************** -->  
  57.     <!--*******session的配置************ -->  
  58.     <!--******************************* -->  
  59.     <session-config>  
  60.         <session-timeout>30</session-timeout>  
  61.     </session-config>  
  62.       
  63.   <filter>  
  64.     <filter-name>jcaptchaFilter</filter-name>  
  65.     <filter-class>com.spring.security.jcaptcha.JCaptchaFilter</filter-class>  
  66.     <init-param>  
  67.       <param-name>failureUrl</param-name>  
  68.       <param-value>/login.jsp</param-value>  
  69.     </init-param>  
  70.   </filter>  
  71.   <filter-mapping>  
  72.     <filter-name>jcaptchaFilter</filter-name>  
  73.     <url-pattern>/jcaptcha.jpg</url-pattern>  
  74.   </filter-mapping>  
  75.   <filter-mapping>  
  76.     <filter-name>jcaptchaFilter</filter-name>  
  77.     <url-pattern>/j_spring_security_check</url-pattern>  
  78.   </filter-mapping>  
  79.   <filter>  
  80.     <filter-name>springSecurityFilterChain</filter-name>  
  81.     <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>  
  82.   </filter>  
  83.     
  84.   <filter-mapping>  
  85.     <filter-name>springSecurityFilterChain</filter-name>  
  86.     <url-pattern>/*</url-pattern>  
  87.   </filter-mapping>  
  88.   <listener>  
  89.     <listener-class>org.springframework.security.web.session.HttpSessionEventPublisher</listener-class>  
  90.   </listener>  
  91.     
  92.   <welcome-file-list>  
  93.     <welcome-file>index.jsp</welcome-file>  
  94.   </welcome-file-list>  
  95. </web-app>  

 

login.jsp

 

Java代碼  收藏代碼
  1. <%@ include file="/common/taglibs.jsp"%>  
  2. <%@ page language="java" contentType="text/html; charset=UTF-8"  
  3.     pageEncoding="UTF-8"%>  
  4. <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www./TR/html4/loose.dtd">  
  5. <html>  
  6. <head>  
  7. <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">  
  8. <title>登 錄</title>  
  9. <script type="text/javascript">  
  10.   
  11. /*============================================== 
  12. *   refreash the captcha to general new picture 
  13. *==============================================*/  
  14. function refreshCaptcha() {     
  15.     $('#captchaImg').hide().attr(     
  16.     'src',     
  17.     '<c:url value="/jcaptcha.jpg"/>' + '?' + Math.floor(Math.random() * 100)).fadeIn();     
  18. }  
  19. </script>  
  20. </head>  
  21. <body>  
  22.     <center>  
  23.         <div class="login-error">  
  24.             ${sessionScope.SPRING_SECURITY_LAST_EXCEPTION.message}  
  25.         </div>  
  26.         <form action="${pageContext.request.contextPath}/j_spring_security_check" method="post">  
  27.             <table style="width: 60%">  
  28.                 <tr>  
  29.                     <td>用戶名:</td>  
  30.                     <td>  
  31.                         <input class = "login-smallInput" type='text' name='j_username'/>  
  32.                     </td>  
  33.                 </tr>  
  34.                 <tr>  
  35.                     <td>密   碼:</td>  
  36.                     <td>  
  37.                         <input class = "login-smallInput" type='password' name='j_password' />  
  38.                     </td>  
  39.                 </tr>  
  40.                 <tr>  
  41.                     <td>驗(yàn)證碼:</td>  
  42.                     <td>  
  43.                         <input type='text' name='j_captcha' size="5"/>   
  44.                         <img id="captchaImg" style="vertical-align:middle" src="<c:url value="/jcaptcha.jpg"/>" />   
  45.                         <a href="javascript:refreshCaptcha()">看不清楚換一張</a>  
  46.                     </td>  
  47.                 </tr>  
  48.                 <tr>  
  49.                     <td>  
  50.                         <input id="_spring_security_remember_me" name="_spring_security_remember_me" type="checkbox"/>  
  51.                     </td>  
  52.                     <td>  
  53.                         <label for="_spring_security_remember_me">Remember Me?</label>  
  54.                     </td>  
  55.                 </tr>  
  56.                 <tr>  
  57.                     <td colspan="2">  
  58.                         <input type="submit" name="submit" value="登錄" />  
  59.                     </td>  
  60.                 </tr>  
  61.             </table>  
  62.         </form>  
  63.     </center>  
  64. </body>  
  65. </html>  

 

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