User:Splarka/ajaxbatchundelete.js

/* Ajax batch undelete thingy, version [0.0.1] Originally from: http://en.wikipedia.org/wiki/User:Splarka/ajaxbatchundelete.js

Notes:
 * It is a bit verbose, after debugging perhaps some output should be removed.
 * It waits 1 second after every undelete before starting the next.
 * Can be aborted by simply deleting the contents of the textarea, or leaving the page.
 * Stops when it hits a blank line.
 * Nonfatal errors (skip to next line):
 * Bad character or malformed line
 * Bad token
 * Unexpected response
 * Pauses in execution can be added with a blank line.

To do:
 * Cache the token if two the same?
 * Please note the delete token is not guaranteed to be static, but currently it always is.

addOnloadHook(function { mw.util.addPortletLink('p-tb','/wiki/Special:BlankPage?blankspecial=ajaxbu','Batch Undelete'); });

if(mw.config.get('wgCanonicalSpecialPageName') && mw.config.get('wgCanonicalSpecialPageName').toLowerCase == 'blankpage' && queryString('blankspecial') == 'ajaxbu') { document.title = 'Ajax Batch Undeletion'; addOnloadHook(abuForm); }

function abuForm { mw.util.addPortletLink('p-tb','/wiki/Special:Log/delete?user=' + encodeURIComponent(mw.config.get('wgUserName')),'My delete log');

//subvert this Special: page to our own needs. var con = document.getElementById('content') || document.getElementById('mw_content'); var bcon = document.getElementById('bodyContent') || document.getElementById('mw_contentholder'); var fh = getElementsByClassName(con,'h1','firstHeading')[0]; while(fh.firstChild) fh.removeChild(fh.firstChild) fh.appendChild(document.createTextNode('Ajax Batch Undeletion')); for(var i=0;i<bcon.childNodes.length;i++) { bcur = bcon.childNodes[i]; if(bcur.id != 'siteSub' && bcur.id != 'contentSub' && bcur.className != 'visualClear') { while(bcur.firstChild) bcur.removeChild(bcur.firstChild) if(bcur.nodeType == 3) bcur.nodeValue = ''; } }

//generate content var form = document.createElement('form'); form.appendChild(document.createTextNode('List of pages to undelete:')); form.appendChild(document.createElement('p')); form.setAttribute('action','javascript:void(0);'); var txt = document.createElement('textarea'); txt.style.height = '20em'; txt.style.width = '50%'; txt.setAttribute('id','abu-textarea'); form.appendChild(txt); form.appendChild(document.createElement('p')); var lab1 = document.createElement('label'); lab1.setAttribute('for','abu-reason') lab1.appendChild(document.createTextNode('Restore reason: ')); form.appendChild(lab1); var inp1 = document.createElement('input'); inp1.style.width = '20em'; inp1.setAttribute('type','text'); inp1.setAttribute('id','abu-reason'); form.appendChild(inp1); form.appendChild(document.createElement('p')); var sub1 = document.createElement('input'); sub1.setAttribute('type','button'); sub1.setAttribute('id','abu-startbutton'); sub1.setAttribute('value','start'); sub1.setAttribute('onclick','abuStart'); form.appendChild(sub1); bcon.appendChild(form); var pre = document.createElement('pre'); pre.setAttribute('id','abu-output'); bcon.appendChild(pre); }

function abuStart { document.getElementById('abu-startbutton').setAttribute('disabled','disabled'); var out = document.getElementById('abu-output'); var txt = document.getElementById('abu-textarea'); var undeletes = txt.value.split('\n'); var page = undeletes[0]; if(page == '') { out.appendChild(document.createTextNode('* Done! Nothing left to do, or next line is blank.\n')); document.getElementById('abu-startbutton').removeAttribute('disabled'); } else { var badchars = /(\#|\<|\>|\[|\]|\{|\}|\|)/; if(badchars.test(page)) { out.appendChild(document.createTextNode('! Illegal characters detected, skipping:' + page + '\n')); setTimeout('abuStart',1000); } else { out.appendChild(document.createTextNode('> Attempting to undelete ' + page + '\n')); abuGetToken(page); } }  undeletes = undeletes.slice(1,undeletes.length); txt.value = undeletes.join('\n'); }

function abuGetToken(page) { var out = document.getElementById('abu-output'); out.appendChild(document.createTextNode(' > Fetching undelete token for ' + page + '\n')); var url = mw.config.get('wgScriptPath') + '/api.php?action=query&list=deletedrevs&drprop=token&drlimit=1&format=json&titles=' + encodeURIComponent(page); var req = sajax_init_object; req.open('GET', url, true); req.onreadystatechange = function { if(req.readyState == 4 && req.status == 200) { eval("abuUndelete(" + req.responseText + ",'" + req.responseText.replace(/\'/g,"`") + "','" + page + "')"); } }  req.send(null); }

function abuUndelete(obj,txt,page) { var out = document.getElementById('abu-output'); if(obj['error']) { out.appendChild(document.createTextNode(' ! Api error: ' + obj['error']['code'] + ' - ' + obj['error']['info'] + '\n')); return; } if(!obj['query'] || !obj['query']['deletedrevs'] || !obj['query']['deletedrevs'][0]  || !obj['query']['deletedrevs'][0]['token']) { out.appendChild(document.createTextNode(' ? Unexpected response: ' + txt + '\n')); return; } var token = obj['query']['deletedrevs'][0]['token']; out.appendChild(document.createTextNode(' > Token found, attempting undelete\n')); var reason = document.getElementById('abu-reason').value;

var params = 'action=undelete&format=json&token=' + encodeURIComponent(token) + '&title=' + encodeURIComponent(page) + '&reason=' + encodeURIComponent(reason); var url = mw.config.get('wgScriptPath') + '/api.php';

var req = sajax_init_object; req.open('POST', url, true); req.setRequestHeader('Content-type', 'application/x-www-form-urlencoded'); req.setRequestHeader('Content-length', params.length); req.setRequestHeader('Connection', 'close'); req.onreadystatechange = function { if(req.readyState == 4 && req.status == 200) { eval("abuUndeleteAftermath(" + req.responseText + ",'" + req.responseText.replace(/\'/g,"`") + "')"); } }  req.send(params); }

function abuUndeleteAftermath(obj,txt) { var out = document.getElementById('abu-output');

//{"undelete":{"title":"Test 6","revisions":3,"fileversions":0,"reason":3}} if(obj['error']) { out.appendChild(document.createTextNode('  ! Api error: ' + obj['error']['code'] + ' - ' + obj['error']['info'] + '\n')); } else if(obj['undelete'] && obj['undelete']['title']) { var details = ''; if(obj['undelete']['revisions']) details += ', ' + obj['undelete']['revisions'] + ' revisions restored' if(obj['undelete']['fileversions']) details += ', ' + obj['undelete']['fileversions'] + ' file versions restored' out.appendChild(document.createTextNode('  > Page ' + obj['undelete']['title'] + ' undeleted' + details + '\n')); } else { out.appendChild(document.createTextNode('  ? Unexpected response: ' + txt + '\n')); return; } setTimeout('abuStart',1000); }

function queryString(p) { var re = RegExp('[&?]' + p + '=([^&]*)'); var matches; if (matches = re.exec(document.location)) { try { return decodeURI(matches[1]); } catch (e) { } }  return null; }