Re: [xwiki-users] about to give in...

Well, its great that someone, somewhere has got it to work!!! You wrote this "But as you can see, RegisterAction do not verify captcha, so we cannot use captcha for validating registrations. But this is very easy to be added, needs a small patch." Where does this patch go? ---Original Message----- From: Asiri Rathnayake [mailto:asiri.rathnayake@gmail.com] Sent: 15 July 2009 11:09 To: edward(a)eldon.gotadsl.co.uk Cc: XWiki Users Subject: Re: [xwiki-users] about to give in... Hi, Ok, I got captcha to work for commenting. I will explain how I did it: * I could not find any helpful documentation so I went and looked at the CaptchaPlugin.java class (http://svn.xwiki.org/svnroot/xwiki/platform/core/trunk/xwiki-core/src/main/ java/com/xpn/xwiki/plugin/captcha/CaptchaPlugin.java) * Here I found that you need to have a preference parameter named like <action>_registered or <action>_anonymous in your XWiki.XWikiPreference object that defines the captcha mode to be used for validation. Possible values are "image" and "text" * Out of curiosity I fired up my local XE, navigated to http://localhost:8080/xwiki/bin/admin/XWiki/XWikiPreferences and selected edit->class. I looked for fields that looked like above and found the following ones: registration_anonymous : Captcha mode for new registrations registration_registered: This is weired edit_anonymous: Captcha mode for unregistered user edits edit_registered: Captcha mode for registered user edits comment_anonymous: Captcha mode for unregistered user comments comment_registered: Captcha mode for registered user comments These fields have pretty names that doesn't make much sense. * Then I switched back to object edit mode and inside the XWiki.XWikiPreferences object I found these fields and set them to "image" * I don't know how I ended up looking at XWiki::hasCaptcha() method but anyway I was looking at it after some time. Here I learnt that you need the "xwiki.plugin.captcha" flag to be set to 1 if your captacha validations to work. * Then inside eclipse I did a search for all the references of XWiki.hasCaptcha() method and leant following actions support captcha: - CommentAddAction - EditAction - PreviewAction - SaveAction All of these actions only verify if captcha is enabled and if it validates correctly. They do not display the captcha images, without that displaying all of them validates to "true". So this means we need to edit the templates and display captcha if these actions are to be restricted. But as you can see, RegisterAction do not verify captcha, so we cannot use captcha for validating registrations. But this is very easy to be added, needs a small patch. * Then I went and located commentsinline.vm and found the section which displays the comment box: <code> #macro(displayCommentForm) #if($xwiki.hasAccessLevel('comment')) <form action="$doc.getURL('commentadd')" method="post" id="AddComment"> <fieldset class="expanded" id="commentform"> <legend>$msg.get('core.viewers.comments.add.title')</legend> <input type="hidden" name="xredirect" value="${doc.getURL('view')}#Comments" /> #if($context.user != 'XWiki.XWikiGuest') <label>$msg.get('core.viewers.comments.add.guestName.prompt') $xwiki.getUserName($context.user)</label> <input type="hidden" name="${xCommentClass}_author" value="$context.user"/> #else <label>$msg.get('core.viewers.comments.add.guestName.prompt') <input type="text" name="${xCommentClass}_author" value="$msg.get('core.viewers.comments.add.guestName.default')"/></label> #end <input type="hidden" name="${xCommentClass}_date" value=""/> <input type="hidden" name="${xCommentClass}_replyto" value="$!{request.replyto}"/> <div class="commentcontainer"> <label>$msg.get('core.viewers.comments.add.comment.label')</lab el> <textarea id='${xCommentClass}_comment' rows='5' cols="80" name='${xCommentClass}_comment'></textarea> </div> <div> <span class="buttonwrapper"><input type="submit" value="$msg.get('core.viewers.comments.add.submit')" class="button"/></span> <span class="buttonwrapper"><input #if("$!{request.replyto}" == '') type="reset" #else type="submit" #end value="$msg.get('core.viewers.comments.add.cancel')" class="button" name="action_cancel"/></span> </div> </fieldset> </form> #end #end </code> I added the captcha display code as bellow: <code> #macro(displayCommentForm) #if($xwiki.hasAccessLevel('comment')) <form action="$doc.getURL('commentadd')" method="post" id="AddComment"> <fieldset class="expanded" id="commentform"> <legend>$msg.get('core.viewers.comments.add.title')</legend> <input type="hidden" name="xredirect" value="${doc.getURL('view')}#Comments" /> #if($context.user != 'XWiki.XWikiGuest') <label>$msg.get('core.viewers.comments.add.guestName.prompt') $xwiki.getUserName($context.user)</label> <input type="hidden" name="${xCommentClass}_author" value="$context.user"/> #else <label>$msg.get('core.viewers.comments.add.guestName.prompt') <input type="text" name="${xCommentClass}_author" value="$msg.get('core.viewers.comments.add.guestName.default')"/></label> #end <input type="hidden" name="${xCommentClass}_date" value=""/> <input type="hidden" name="${xCommentClass}_replyto" value="$!{request.replyto}"/> <div class="commentcontainer"> <label>$msg.get('core.viewers.comments.add.comment.label')</lab el> <textarea id='${xCommentClass}_comment' rows='5' cols="80" name='${xCommentClass}_comment'></textarea> </div> $xwiki.jcaptcha.displayCaptcha("comment", "myclass") ## Here <div> <span class="buttonwrapper"><input type="submit" value="$msg.get('core.viewers.comments.add.submit')" class="button"/></span> <span class="buttonwrapper"><input #if("$!{request.replyto}" == '') type="reset" #else type="submit" #end value="$msg.get('core.viewers.comments.add.cancel')" class="button" name="action_cancel"/></span> </div> </fieldset> </form> #end #end </code> * Restarted xwiki and logged in as a normal user (Admin user does not get captcha anyway) and voila, I saw captcha display near the comment box. I tried to post a comment with an invalid captcha input and it failed, but the failiure was not that visible. Then I tried to post a comment with the correct captcha input and it worked!!! This is my experience but I'm not sure when captcha support will be fixed on xwiki completely. Thanks. - Asiri On Wed, Jul 15, 2009 at 3:02 PM, Edward Laptop &lt;edward(a)eldon.gotadsl.co.uk&gt; wrote: Thanks for the reply! I have been on this for ages and ages and ages. I looked at the links below, and I think I see what you mean. To be honest, its beyond my understanding. I have been working with registerinline.vm - I can get the captcha field to veryify fine. In my page there is variable $reg which appears to be the key. Please keep in touch - and I will too. Maybe one of us will crack it Incidentally I used http://n2.nabble.com/CAPTCHA-for-comments-and-registration-tp507976p5079 89.html as a basis and it seemed to work. Trouble was, its not a full solution. I contact some people from the thread - but nobody seemed to be able to solve it fully. Perhaps there is a bug??? Has anyone got captcha to work on a registration page???????? -----Original Message----- From: Asiri Rathnayake [mailto:asiri.rathnayake@gmail.com] Sent: 15 July 2009 10:17 To: edward(a)eldon.gotadsl.co.uk; XWiki Users Subject: Re: [xwiki-users] about to give in... Hi Edward, On Wed, Jul 15, 2009 at 12:35 PM, Edward Eldon &lt;edward(a)eldon.gotadsl.co.uk&gt; wrote: Hi I have noticed that there has been more activity in the last couple of days ... so, here's one last attempt. I have got to the stage where a captcha field is shown, and the page (registerinline.vm) displays the correct errors if it isn't filled in (some simple if statements) However, the user is STILL registered even if the captcha is filled in wrongly. I think I found the problem. Still, I'm not a captcha expert so please bear with me. If you consider the CommentAction (http://svn.xwiki.org/svnroot/xwiki/platform/core/trunk/xwiki-core/src/main/ java/com/xpn/xwiki/web/CommentAddAction.java) you will see that there is a check for captcha. That is, if you have displayed captcha somewhere in the comment section, user will _HAVE_ to provide the correct input otherwise the action will not complete. On the other hand take the RegisterAction (http://svn.xwiki.org/svnroot/xwiki/platform/core/trunk/xwiki-core/src/main/ java/com/xpn/xwiki/web/RegisterAction.java) There is no captcha verification here at all :) My guess is this is a bug of xwiki, not you doing something wrong. Still, don't take my word, try to put captcha somehow into comment area and see if it works... if it does, we cam make sure that no captcha is supported for log-in action of xwiki, which needs fixing. I'm trying to get captcha to work for comment action, I will inform you if i succeed. Thanks. - Asiri I have searched this news group, experimented and given up ... but if anyone can suggest how to stop this my xwiki user would really appreciate it. Happy to post code if anyone's interested! thanks - hopefully Edward _______________________________________________ users mailing list users(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/users