Description

CAPTCHA are needed to make it easy to use and deploy XWiki in a public setting. CAPTCHAs allow testing whether the user trying to perform a given action is a bot or an actual human being. Using captchas helps in preventing spam.

CAPTCHAs will be displayed only for unauthenticated users (XWiki.XWikiGuest), for other users the rights system + identification is enough.

Where are captcha needed?

• When creating an user account -> add a captcha at the bottom of the list of fields to fill
• When leaving a comment on a wiki page -> add a captcha before the post comment button
• When editing a wiki page -> add a captcha before the "Save & Continue" and "Save & View" buttons

Configuration

In the xwiki.properties file:

• captchaOnRegister=true/false
• captchaOnComment=true/false
• captchaOnEdit=true/false