User:Splarka/ajaxbatchdelete.js

/* Ajax batch delete thingy, version [0.0.1a]
Originally from: http://en.wikipedia.org/wiki/User:Splarka/ajaxbatchdelete.js
 
To do:
* Better checking on deletion, currently just checks if the response contains the deletion form
* Better XML error reporting?
* Better list handling (lazily stores list in the textarea currently)
* Possibly could recycle delete tokens (have to verify)
* MORE TESTING
*/
 
addOnloadHook(function() {
  addPortletLink('p-tb','/wiki/Special:AjaxBatchDelete','Batch Delete');
});
 
if(wgPageName == 'Special:AjaxBatchDelete') {
  document.title = 'Ajax Batch Deletion';
  addOnloadHook(abdForm);
}
 
function abdForm() {
  //subvert this Special: page to our own needs.
  var con = (document.getElementById('content')) ? document.getElementById('content') : document.getElementById('mw_content')
  var bcon = (document.getElementById('bodyContent')) ? 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 Deletion'));
  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 delete:'));
   form.appendChild(document.createElement('p'));
   var txt = document.createElement('textarea');
    txt.style.height = '20em';
    txt.style.width = '50%';
    txt.setAttribute('id','adb-textarea');
   form.appendChild(txt);
   form.appendChild(document.createElement('p'));
   var lab1 = document.createElement('label');
    lab1.setAttribute('for','adb-reason')
    lab1.appendChild(document.createTextNode('Deletion reason: '));
   form.appendChild(lab1);
   var inp1 = document.createElement('input');
    inp1.style.width = '20em';
    inp1.setAttribute('type','text');
    inp1.setAttribute('id','adb-reason');
   form.appendChild(inp1);
   form.appendChild(document.createElement('p'));
   var sub1 = document.createElement('input');
    sub1.setAttribute('type','button');
    sub1.setAttribute('id','adb-button1');
    sub1.setAttribute('value','start');
    sub1.setAttribute('onclick','abdStart()');
   form.appendChild(sub1);
  bcon.appendChild(form);
  var pre = document.createElement('pre');
   pre.setAttribute('id','adb-output');
  bcon.appendChild(pre);
}
 
function abdStart(previousResult) {
  var txt = document.getElementById('adb-textarea');
  txt.setAttribute('disabled','disabled');
  if(previousResult) {
    txt.value = txt.value.replace(/.*(\n|$)/,'');
    var pre = document.getElementById('adb-output');
    pre.appendChild(document.createTextNode('* ' + previousResult + '\n'));
  }
  if(txt.value == '') {
    txt.removeAttribute('disabled');
  } else {
    var list = txt.value.split('\n');
    getDeleteToken(list[0]);
  }
}
 
function adbDelete(page,token) {
  var url = wgServer + wgScriptPath + '/index.php?title=' + page + '&action=delete'
  var data = 'wpReason=' + encodeURIComponent(document.getElementById('adb-reason').value) + '&wpEditToken=' + encodeURIComponent(token)
  postXML(url,data,page);
}
 
function getDeleteToken(page) {
  var url = wgServer + wgScriptPath + '/api.php?action=query&format=xml&prop=info&intoken=delete&titles=' + encodeURIComponent(page);
  if (window.XMLHttpRequest) { // Non-IE browsers
    var req = new XMLHttpRequest();
    if(req.overrideMimeType) req.overrideMimeType('text/html')
  } else if (window.ActiveXObject) { // IE
    var req = new ActiveXObject('Microsoft.XMLHTTP');
  }
  if(req) {
    req.onreadystatechange = function() {
      if(req.readyState == 4) {
        if(req.status == 200) {
          var txt = req.responseText;
          var token = txt.match(/deletetoken\=\"[0-9a-f]{32}\+\\\"/)[0];
          token = token.match(/[0-9a-f]{32}\+\\/)[0];
          adbDelete(page,token);
         } else {
          alert('Error fetching token: ' + req.statusText);
        }
      }
    }
    try {
      req.open('GET', url, true);
      req.send('');
    } catch (e) {
      alert('Error:' + e);
    }
  } else {
    alert('XMLHTTPRequest not supported');
  }
}
 
function postXML(url,data,page) {
  if (window.XMLHttpRequest) { // Non-IE browsers
    var req = new XMLHttpRequest();
  } else if (window.ActiveXObject) { // IE
    var req = new ActiveXObject('Microsoft.XMLHTTP');
  }
  if(req) {
    req.onreadystatechange = function() {
      if(req.readyState == 4) {
        if(req.status == 200) {
          var result = decodeURIComponent(page) + ' - '
          result += (req.responseText.search(/id\=\"deleteconfirm\"/) == -1) ? 'probably deleted' : 'not deleted'
          abdStart(result);
        } else {
          abdStart('Error: ' + req.statusText);
        }
      }
    }
    try {
      req.open('POST', url, true);
      req.setRequestHeader('Method', 'POST ' + url + ' HTTP/1.1');
      req.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
      req.setRequestHeader('Content-length', data.length);
      req.setRequestHeader('Connection', 'close');
      req.send(data);
    } catch (e) {
      abdStart('Error: ' + e);
    }
  } else {
    alert('XMLHTTPRequest not supported');
  }
}