Viewing filter 957: Removal of article lead

Filter parameters

Filter ID:	957
Description: (publicly viewable)
Filter hits:	200,834 hits
Statistics:	Of the last 186,755 actions, this filter has matched 53 (0.03%). On average, its run time is 0.2 ms, and it consumes 1.1 conditions of the condition limit.
Conditions: (documentation)	!"confirmed" in user_groups & page_namespace == 0 & ( bold := "'''"; bold in removed_lines & !( bold in added_lines ) & ( ( '==' in substr( new_wikitext, 0, 50 ) & !( '==' in substr( old_wikitext, 0, 50 ) ) ) \| ( "{{infobox" in lcase(removed_lines) & !( "{{" in lcase(added_lines) ) & ( length(string(added_lines)) < 250 ) & new_size > 500 & /* exclude blankings, which are covered by filter 3 / substr (old_wikitext, 0, length(string(removed_lines))) == string(removed_lines) / make sure it is the lead that is being removed / ) ) ) !"confirmed" in user_groups & page_namespace == 0 & ( bold := "'''"; bold in removed_lines & !( bold in added_lines ) & ( ( '==' in substr( new_wikitext, 0, 50 ) & !( '==' in substr( old_wikitext, 0, 50 ) ) ) \| ( "{{infobox" in lcase(removed_lines) & !( "{{" in lcase(added_lines) ) & ( length(string(added_lines)) < 250 ) & new_size > 500 & / exclude blankings, which are covered by filter 3 / substr (old_wikitext, 0, length(string(removed_lines))) == string(removed_lines) / make sure it is the lead that is being removed */ ) ) )
Notes:	Tested on filter 953. Quit a bit of vandalism that just involves removing the lead of an article, including the infobox. There's overlap with other filters but a reasonable proportion of edits get through that needs to be disallowed and wouldn't be catcheable by other filters I know of. Currently just logging and if there are no false positives will post on EFN about setting to disallow. -Galo Increase new_size exclusion limit, so that there should be no conversions to redirects and the like caught. -Galo 2019.01.14 Set to disallow per [[Special:PermaLink/879231787#Setting_filter_957_to_disallow?]] -Galo 2019.01.20 Log-only while seeing if can reduce FPs. Exclude cases where added_lines contains templates or is long - solely focus on blankings of the lead and replacements of the lead with things like "ur mom" and "hi". -Galo 2019.01.21 Add "substr (old_wikitext, 0, length(string(removed_lines))) == string(removed_lines)" per FP Special:AbuseLog/23052500. -Galo 2019.01.22 Add second method, which checks the position of the first header to determine lead length. -G 2019-03-02
Flags:	Hide details of this filter from public view Enable this filter Enable the use of [https://www.mediawiki.org/wiki/Special:MyLanguage/Extension:AbuseFilter/Rules_format#Protected_variables protected variables] in this filter Mark as deleted
Filter last modified:	08:44, 2 March 2019 by Galobtter (talk \| contribs)
History:	View this filter's history
Tools:	Export this filter to another wiki {"data":{"rules":"!\"confirmed\" in user_groups \u0026\r\npage_namespace == 0 \u0026 (\r\n bold := \"'''\";\r\n bold in removed_lines \u0026\r\n !( bold in added_lines ) \u0026\r\n (\r\n (\r\n '==' in substr( new_wikitext, 0, 50 ) \u0026\r\n !( '==' in substr( old_wikitext, 0, 50 ) )\r\n ) \|\r\n (\r\n \"{{infobox\" in lcase(removed_lines) \u0026\r\n !( \"{{\" in lcase(added_lines) ) \u0026\r\n ( length(string(added_lines)) \u003C 250 ) \u0026\r\n new_size \u003E 500 \u0026 /* exclude blankings, which are covered by filter 3 /\r\n substr (old_wikitext, 0, length(string(removed_lines))) == string(removed_lines) / make sure it is the lead that is being removed */\r\n )\r\n )\r\n)","name":"Removal of article lead","comments":"Tested on filter 953. Quit a bit of vandalism that just involves removing the lead of an article, including the infobox. There's overlap with other filters but a reasonable proportion of edits get through that needs to be disallowed and wouldn't be catcheable by other filters I know of. Currently just logging and if there are no false positives will post on EFN about setting to disallow. -Galo\r\n\r\nIncrease new_size exclusion limit, so that there should be no conversions to redirects and the like caught. -Galo 2019.01.14\r\n\r\nSet to disallow per [[Special:PermaLink/879231787#Setting_filter_957_to_disallow?]] -Galo 2019.01.20\r\n\r\nLog-only while seeing if can reduce FPs. Exclude cases where added_lines contains templates or is long - solely focus on blankings of the lead and replacements of the lead with things like \"ur mom\" and \"hi\". -Galo 2019.01.21\r\n\r\nAdd \"substr (old_wikitext, 0, length(string(removed_lines))) == string(removed_lines)\" per FP Special:AbuseLog/23052500. -Galo 2019.01.22\r\n\r\nAdd second method, which checks the position of the first header to determine lead length. -G 2019-03-02","group":"default","actions":{"disallow":["abusefilter-disallowed-article-lead-removed"]},"enabled":true,"deleted":false,"privacylevel":0,"global":false},"actions":{"disallow":["abusefilter-disallowed-article-lead-removed"]}}

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