User:Animum/moveRV.js

importScript('User:Animum/urlparameters.js');
importScript('User:Animum/formatresponse.js');

function zeroPad(str) {
    return ("0" + str).slice(-2);
}
 
var isSysop = /sysop/.test(wgUserGroups);
 
function revertmoves() { //A _HEAVILY_ modified version of Voice of All's move-reversion script.
    document.getElementById("contentSub").innerHTML += "<br /><b>Working<span style=\"text-decoration:blink\">...</span> (this may take a while)</b>";
    var l = document.getElementById('bodyContent').getElementsByTagName('li');
    var NEXT_INDEX = 0;
    var completedMoves = 0;
    var completedDeletions = 0;
    for (var i=NEXT_INDEX;i<l.length;i++) {
            var li_a = l[i].getElementsByTagName('a');
            for(k=0;k<li_a.length;k++) { //Here to look good.
                    var article  = li_a[(isSysop ? 4 : 3)].href.split("title=")[1].split("&")[0];
                    var article2 = li_a[(isSysop ? 5 : 4)].href.replace(/.*?(\/wiki\/|\/index\.php\?title\=)/g, "").split("&")[0];
                    var req = sajax_init_object();
                    req.open("GET", wgScriptPath + "/api.php?format=json&action=query&prop=revisions&titles=" + article + "&rvprop=comment&limit=1", false);
                    req.send(null);
                    var pageInfo = formatResponse(eval("(" + req.responseText + ")"));
                    if(pageInfo.revisions != undefined) {
                      if(pageInfo.revisions[0].comment) {
                        if(pageInfo.revisions[0].comment.indexOf("moved [[" + article2.replace(/_/g, " ") + "]] to [[" + article.replace(/_/g, " ") + "]]") != -1) {
                            var shouldAbort = true; //Has already been reverted.
                        } else {
                            shouldAbort = false;
                        }
                      } else {
                        shouldAbort = false; //No comment means no move has been made.
                      }
                    } else {
                        shouldAbort = false; //If page doesn't exist, we don't want to move it.
                    }
                        var req = sajax_init_object();
                        req.open("GET", wgScriptPath + "/api.php?format=json&action=query&prop=revisions&titles=" + article2 + "&rvprop=comment&limit=1", false);
                        req.send(null);
                            var pageInfo = formatResponse(eval("(" + req.responseText + ")"));
                            if(pageInfo.revisions == undefined) {
                                 shouldAbort = true; //Page to move doesn't exist.
                            }
                        var req = sajax_init_object();
                        req.open("GET", wgScriptPath + "/api.php?format=json&action=query&prop=info&intoken=move|delete&titles=" + article2, false);
                        req.send(null);
                            var summary = "Script-assisted page-move revert.";
                            var info = formatResponse(eval("(" + req.responseText + ")"));
                            var edittoken = info.movetoken;
                            var deletetoken = info.deletetoken;
              	            var postdata = "wpOldTitle=" + article2
                                         + "&wpNewTitle=" + article
                                         + "&wpReason=" + encodeURIComponent(summary)
                                         + "&wpMovetalk=0"
                                         + "&wpEditToken=" + encodeURIComponent(edittoken)
                                         + "&wpMove=Move+page"
                                         + "&wpConfirm=1";
                        var req = sajax_init_object();
                        req.open("POST", wgScriptPath + "/index.php?title=Special:MovePage&action=submit", false);
                        req.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
                        req.setRequestHeader("Content-length", postdata.length);     
                        if(shouldAbort == false) { //If nobody else has already reverted, we do                   
                            req.send(postdata);
 
                            var dt = new Date();
                            var timestamp = dt.getUTCFullYear() + zeroPad(dt.getUTCMonth() + 1) + zeroPad(dt.getUTCDate()) + zeroPad(dt.getUTCHours()) + zeroPad(dt.getUTCMinutes()) + zeroPad(dt.getUTCSeconds());
 
                            var div = document.createElement("div");
                            div.id = "completedMoveCount";
                            document.getElementById("contentSub").appendChild(div);
 
                            var req = sajax_init_object();
                            req.open("GET", wgScriptPath + "/api.php?format=json&action=query&list=logevents&letype=move&leuser=" + wgUserName + "&letitle=" + unescape(article2) + "&lelimit=1&ledir=newer&lestart=" + timestamp, false);
                            req.send(null);
                            if(eval("(" + req.responseText + ")").query.logevents[0]) {
                                if(eval("(" + req.responseText + ")").query.logevents[0].user == wgUserName && eval("(" + req.responseText + ")").query.logevents[0].comment == summary) {
 
                                    if(isSysop) {
                                        var delsummary = "Automated deletion of redirects created from the reversion of moves (in some cases, this could be covered by [[Wikipedia:Criteria for speedy deletion#G3|criterion G3]])";
                                        var postdata = "wpReason=" + encodeURIComponent(delsummary)
                                                     + "&wpEditToken=" + encodeURIComponent(deletetoken);
                                        var req = sajax_init_object();
                                        req.open("POST", wgScript + "?title=" + article2 + "&action=delete", false);
                                        req.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
                                        req.setRequestHeader("Content-length", postdata.length);
                                        req.send(postdata);
                                    }
                                    completedMoves = completedMoves+1;
                                    document.getElementById("completedMoveCount").innerHTML = "<b>" + completedMoves + (completedMoves == 1 ? " move " + (isSysop ? "and deletion has" : "has") : " moves " + (isSysop ? "and deletions have" : "have")) + " been completed.</b>";
                                }
                            }
                        }
                NEXT_INDEX = NEXT_INDEX+1;
                break;
            }
    }
    document.getElementById("contentSub").getElementsByTagName("span")[0].style.textDecoration = "none";
    document.getElementById("contentSub").innerHTML += "<br /><b>Cleanup finished.</b>"; //Done.
}
 
function doMoveRV() {
    var domove = confirm("All of the moves listed on this page will be reverted, and the resulting redirects will be deleted.\n\nClick \"OK\" to proceed or \"Cancel\" to abort.");
    if(domove) {
        revertmoves();
    } else {
        return;
    }
}
 
$(function() {
    if(wgNamespaceNumber == -1 && wgCanonicalSpecialPageName == "Log" && (UrlParameters["type"] == "move" || location.href.substring(location.href.indexOf("title=") + 6).split("/")[1] == "move" || location.href.substring(location.href.indexOf("/wiki/") + 6).split("?")[0].split("/")[1] == "move") && (UrlParameters["user"] || location.href.substring(location.href.indexOf("user=") + 5))) {
        mw.util.addPortletLink("p-cactions", "javascript:doMoveRV()", "pagemove", "ca-pagemove");
    }
});