User:Magnus Manske/me too.js

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/**
 Tool to change between multiple Wiki user names
 Include in the [[Special:MyPage/common.js]] of ALL your users on a wiki, like so:
 
 importScript("User:Magnus Manske/me too.js");
*/

addOnloadHook ( function() {
	var store_password_in_cookie = true ; // EDIT THIS : true if your password should be stored for 1h in a cookie, false otherwise
	var users = [ 'Magnus Manske' , 'The other Magnus Manske' ] ; // EDIT THIS : A comma-separated list of all your user names

// ----------------------------------------------------------------------
// DO NOT EDIT BELOW THIS LINE UNLESS YOU KNOW WHAT YOU ARE DOING!
// ----------------------------------------------------------------------

	$.each ( users , function ( k , user ) {
		if ( mw.config.get('wgUserName') == user ) return ;
		var portletLink = mw.util.addPortletLink( 'p-tb', 'javascript:;', 'Become '+user,'t-wd_me_too'+k);
		$(portletLink).click ( function () {
			me_too_change_user ( user , store_password_in_cookie ) ;
			return false ;
		} ) ;
	}) ;
} ) ;


function me_too_change_user ( new_user , store_password_in_cookie ) {

	var hours_for_password_in_cookie = 1 ;

	function readCookie(name) {
		var nameEQ = name + "=";
		var ca = document.cookie.split(';');
		for(var i=0;i < ca.length;i++) {
			var c = ca[i];
			while (c.charAt(0)==' ') c = c.substring(1,c.length);
			if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
		}
		return null;
	}

	var cookie_name = 'mee_too_'+new_user ;
	var pass = readCookie(cookie_name);
	if ( pass == null || pass == 'null' ) pass = prompt("Enter password for user "+new_user, "") ;
	if ( pass == '' ) return ; // No password
	
	if ( store_password_in_cookie ) {
		var date = new Date();
		date.setTime(date.getTime()+(hours_for_password_in_cookie*60*60*1000));
		var expires = "; expires="+date.toGMTString();
		document.cookie = cookie_name+"="+pass+expires+"; path=/";
	}
	

	// Logout
	$.post('/w/api.php?action=logout&format=json',function(d0){
	
		// Get token
		var o = { action:'login',lgname:new_user,lgpassword:pass,format:'json' } ;
		$.post('/w/api.php',o,function(d){
				o.lgtoken = d.login.token ;
	
				// Log in
				$.post('/w/api.php',o,function(d2){
						if ( d2.login.result == "Success" ) {
							$('body').html ( "<h1>Welcome, " + new_user+"!</h1>") ;
							location.reload() ;
						} else {
							alert ( "Something went wrong: "+d2.login.result);
						}
						
					},'json')
	
			},'json')
		
	},'json') ;
}