User:Glaisher/setGlobalPrefs.js

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/**
 * This can be used to change preferences across all the CentralAuth wikis where you have an attached account.
 * It will fail on the wiki where it's run (but you can change that manually).
 * To execute this, go Special:BlankPage and run this script on your browser console
 * after changing "change" parameter in changePrefs() function's API request.
 * See https://meta.wikimedia.org/w/api.php?action=query&meta=userinfo&uiprop=options
 * for an (incomplete) list of available options.
 * Options API help: https://meta.wikimedia.org/w/api.php?action=help&modules=options
 */

mw.loader.using( 'mediawiki.ForeignApi', function() {
	function getAttachedWikis() {
		return new mw.Api().get( {
	       action: 'query',
	       meta: 'globaluserinfo',
	       guiprop: 'merged',
	     } ).then( function( result ) {
	       return result.query.globaluserinfo.merged;
	     }, function() {
	       return null;
	     } );
	}

	function changePrefs( wikiInfo ) {
		var api = new mw.ForeignApi( wikiInfo.url + '/w/api.php' );
		api.postWithToken( 'csrf', {
			action: 'options',
			change: 'gender=unknown'
		} ).done( function ( data ) {
			if ( data.warnings ) {
				onError( data, wikiInfo.wiki );
				return;
			}
			$( '#mw-content-text' ).append( 'Done at ' + wikiInfo.wiki + '<br/>');
		} ).fail( function( data ) {
			onError( data, wikiInfo.wiki );
		} );
	}

	function onError( data, wikiName ) {
		console.log( wikiName, data );
		$( '#mw-content-text' ).append( 'Failed at ' + wikiName + ' <br/>');
	}

	function init() {
		getAttachedWikis().done( function( mergedWikis ) {
			$.each( mergedWikis, function( i, data ) {
				// Requests rate is throttled 
				setTimeout( function() {
					changePrefs( data ) }, i * 500 );
			} );
		} );
	}

	init();
} );