Manual:Combating spam/AbuseFilter examples/en

Introduction
The following examples for have proven useful in combating automated spam. Please change "your phrase or wiki markup" to something you see fit. The reason for not providing a standard phrase is to make it impossible for bot-creators to adapt to this filter (if a large number of wikis use the same filter, spammers can program their bots accordingly).

Examples
!("autoconfirmed" in user_groups) & action == "edit" & (page_id == 0|length(added_links) >= 1) & !("your phrase" in summary | "your phrase or wiki markup" in new_wikitext) This example will block anonymous edits (and those from user without the "autoconfirmed" status) if they are trying to create a new page or add a new link, but dont provide "your phrase" in the edit-summary or "your phrase or wiki markup" in the text they try to save.

!("autoconfirmed" in user_groups) & action == "edit" & page_id == 0 & length(added_links) >= 1 & (contains_any( page_title, "Http", "@@@", "0" , "1" , "2" , "3" , "4" , "5" , "6" , "7" , "8" , "9" ) | length(page_title) > 50 ) This example will not allow users without "autoconfirmed" status to create a new article with a name that either contains a number or "http", or is longer than 50 characters.

!("autoconfirmed" in user_groups) & action == "edit" & ( "REDIRECT" in removed_lines | "redirect" in removed_lines ) & edit_delta >= 100 In this example users without "autoconfirmed" status will be unable to change redirect-pages into articles.

!("autoconfirmed" in user_groups) & action == "edit" & removed_lines irlike "redirect" & !(added_lines irlike "redirect") In this example users without "autoconfirmed" status will be unable to remove the phrase "redirect" from a page.