Kaptcha not working in OpenCMS, session.getattribute returns null
GoogleCodeExporter opened this issue · 5 comments
GoogleCodeExporter commented
Below is the web.xml of opencms
<web-app>
<display-name>OpenCms</display-name>
<description>
OpenCms is an open source content management solution.
See details on http://www.opencms.org/
</description>
<servlet>
<servlet-name>OpenCmsServlet</servlet-name>
<description>
The main servlet that handles all requests to the OpenCms VFS.
</description>
<servlet-class>com.opencms.core.OpenCmsHttpServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>OpenCmsServlet</servlet-name>
<url-pattern>/en/*</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>Kaptcha</servlet-name>
<servlet-class>com.google.code.kaptcha.servlet.KaptchaServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Kaptcha</servlet-name>
<url-pattern>/kaptcha/Kaptcha.jpg</url-pattern>
</servlet-mapping>
<session-config>
<session-timeout>30</session-timeout> <!-- 30 minutes -->
</session-config>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
</welcome-file-list>
<taglib>
<taglib-uri>http://www.opencms.org/taglib/cms</taglib-uri>
<taglib-location>/WEB-INF/opencms.tld</taglib-location>
</taglib>
<security-constraint>
<web-resource-collection>
<web-resource-name>Redirect http</web-resource-name>
<url-pattern>/en/system/login/*</url-pattern>
</web-resource-collection>
<user-data-constraint>
<transport-guarantee>CONFIDENTIAL</transport-guarantee>
</user-data-constraint>
</security-constraint>
</web-app>
JSP is exactly same as KaptchaExample.jsp
Using OpenCMS 5
kaptcha-2.3-jdk14.jar deployed in web-inf/lib
Running on j2sdk1.4.2_15
Image is showing up and randomly generating, session.getAttribute
constantly returning null.
Desperately needed help, thanks!
Original issue reported on code.google.com by henry.c...@gmail.com on 19 Nov 2008 at 9:09
GoogleCodeExporter commented
Let's see your session.getAttribute code.
Also, this isn't a problem with Kaptcha, it is a problem with your code.
Original comment by latch...@gmail.com on 19 Nov 2008 at 4:40
- Added labels: Type-Other
- Removed labels: Type-Defect
GoogleCodeExporter commented
Code is exactly as the same as KaptchaExample.jsp thats comes with the kaptcha
bundle.
<%@ page session="true" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<%@ page language="java" contentType="text/html; charset=UTF-8" %>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Kaptcha Example</title>
</head>
<body>
Enter in the <a href="http://code.google.com/p/kaptcha/">Kaptcha</a> to see if it
matches what is stored in the session attributes.
<table>
<tr>
<td><img src="/kaptcha/Kaptcha.jpg"></td>
<td valign="top">
<form method="POST">
<br>sec code:<input type="text" name="kaptchafield"><br />
<input type="submit" name="submit">
</form>
</td>
</tr>
</table>
<br /><br /><br /><br />
<%
String id = request.getSession().getId();
String c =
(String)session.getAttribute(com.google.code.kaptcha.Constants.KAPTCHA_SESSION_K
EY);
String parm = (String) request.getParameter("kaptchafield");
out.println("Parameter: " + parm + " ? Session Key: " + c + " : " + id);
if (c != null && parm != null) {
if (c.equals(parm)) {
out.println("true");
} else {
out.println("false");
}
}
%>
</body>
</html>
Attached is a screen capture of the jsp.
Session.getAttribute(com.google.code.kaptcha.Constants.KAPTCHA_SESSION_KEY)
keeps
returning a null value.
Thanks!
Original comment by henry.c...@gmail.com on 20 Nov 2008 at 1:47
Attachments:
- [ScreenHunter_01 Nov. 20 09.46.gif](https://storage.googleapis.com/google-code-attachments/kaptcha/issue-29/comment-2/ScreenHunter_01 Nov. 20 09.46.gif)
GoogleCodeExporter commented
What do you see in the tomcat server logs?
Regardless, if you can load up the .war file that comes with the bundle and
that works for you, then that is all the
help I have time to give you. You need to figure out how to do development on
your own. Sorry.
Original comment by latch...@gmail.com on 20 Nov 2008 at 1:53
- Changed state: Invalid
GoogleCodeExporter commented
As I said on the first page of this project:
"Please note that if you are new to web programming, never used Java before or
just generally clueless as to the
workings of the internets, I'm probably not going to respond to your email.
I've made it as easy as possible to
integrate kaptcha with your project, however this really is a product for
people who know what they are doing."
Original comment by latch...@gmail.com on 20 Nov 2008 at 1:54
GoogleCodeExporter commented
Hi latchkey,
I found the exception thrown in the log.
2008-11-20 10:12:16 StandardWrapper[:jcaptcha]: Marking servlet jcaptcha as
unavailable
2008-11-20 10:12:16 StandardContext[]: Servlet threw load() exception
javax.servlet.ServletException: Wrapper cannot find servlet class
ImageCaptchaServlet
or a class it depends on
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:891)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:823)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3427)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:3628)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:821)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:807)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:595)
at org.apache.catalina.core.StandardHostDeployer.install(StandardHostDeployer.java:307)
at org.apache.catalina.core.StandardHost.install(StandardHost.java:788)
at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:492)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:400)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:718)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:358)
at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.ja
va:166)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1196)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:754)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1188)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:363)
at org.apache.catalina.core.StandardService.start(StandardService.java:497)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:2190)
at org.apache.catalina.startup.Catalina.start(Catalina.java:512)
at org.apache.catalina.startup.Catalina.execute(Catalina.java:400)
at org.apache.catalina.startup.Catalina.process(Catalina.java:180)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:203)
----- Root Cause -----
java.lang.ClassNotFoundException: ImageCaptchaServlet
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1443)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1289)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:885)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:823)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3427)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:3628)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:821)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:807)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:595)
at org.apache.catalina.core.StandardHostDeployer.install(StandardHostDeployer.java:307)
at org.apache.catalina.core.StandardHost.install(StandardHost.java:788)
at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:492)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:400)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:718)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:358)
at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.ja
va:166)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1196)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:754)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1188)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:363)
at org.apache.catalina.core.StandardService.start(StandardService.java:497)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:2190)
at org.apache.catalina.startup.Catalina.start(Catalina.java:512)
at org.apache.catalina.startup.Catalina.execute(Catalina.java:400)
at org.apache.catalina.startup.Catalina.process(Catalina.java:180)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:203)
Sorry I have not touched java for almost 2 years and have forgetten a lot about
it. I
have min knowledge on J2EE architecture too...Hope you won't mind...
Original comment by henry.c...@gmail.com on 20 Nov 2008 at 2:20