/*
 This file has been modified from Onur Yalazi's original distribution
 by Brandon Goldsworthy.

 Changes:
   Added a preview. The preview shows all of bugmenot's results,
     though execute will still only insert the highest rated one.
   Use current window location as default url for both preview and execute
   Add error callback to jQuery call to bugmenot's page.
   If not in editable field, opens bugmenot in new tab

 Onur's original attribution info is left in-tact below.
 You can get his original file there.
*/

CmdUtils.CreateCommand({
  name: "bugmenot",

  homepage: "http://www.yalazi.org/ubiquity",
  author: { name: "Onur YALAZI", email: "yalazi@gen3.com.tr"},
  license: "MPL",
  description: "modified by Brandon Goldsworthy. Get password for current page or entry from bugmenot.com",
  help: "If you're in an editable text area, inserts <username:password> double",

  _decodeIt: function(data,key) {
    var b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
    var o11 = "";var o21 = ""; var o31 = "";
    var h11 = "";var h21 = ""; var h31 = "";var h41 = "";
    var bits1 = ""; var i1 = 0; var enc1 = "";

    do {
      h11 = b64.indexOf(data.charAt(i1++));
      h21 = b64.indexOf(data.charAt(i1++));
      h31 = b64.indexOf(data.charAt(i1++));
      h41 = b64.indexOf(data.charAt(i1++));
      bits1 = h11 << 18 | h21 << 12 | h31 << 6 | h41;
      o11 = bits1 >> 16 & 255;
      o21 = bits1 >> 8 & 255;
      o31 = bits1 & 255;
      if (h31 == 64) {
        enc1 += String.fromCharCode(o11);
      } else if (h41 == 64) {
        enc1 += String.fromCharCode(o11, o21);
      } else {
        enc1 += String.fromCharCode(o11, o21, o31);
      }
    } while (i1 < data.length);


    strInput = enc1;
    strOutput = "";
    intOffset = (key + 112) / 12;
    for (i1 = 4; i1 < strInput.length; i1++) {
      thisLetter = strInput.charAt(i1);
      thisCharCode = strInput.charCodeAt(i1);
      newCharCode = thisCharCode - intOffset;
      strOutput += String.fromCharCode(newCharCode);
    }
    return strOutput;
  },
  _inField: function(){
      //gleaned from CmdUtils.setSelection
      return context.focusedWindow.document.designMode == "on" ||
             (context.focusedElement && context.focusedElement.selectionStart >= 0);
  },
  _getPassword: function(urlAddress, parent, pblock) {

    var baseUrl = "http://www.bugmenot.com/view/" + urlAddress.text;

    if (!pblock && !this._inField()){
        Utils.openUrlInBrowser(baseUrl);

    }else{
      jQuery.ajax({
        url:baseUrl,
        error:function(){
          if (pblock){
            pblock.innerHTML += "Passwords not found.<br />";
          }else{
            displayMessage("Passwords not found.");
            CmdUtils.setSelection("Passwords not found.");
          }
        },
        success:function( passwords ) {
          key = parseInt(passwords.match(/key.=.([0-9]*)/)[1]);
          var result = "";

          arrayToWork = passwords.split("<div class=\"account\"");
          if (arrayToWork.length && arrayToWork.length > 1) {
            o_password = "";
            o_username = "";
            o_rate = 0;

            for (i=0;i<arrayToWork.length; i++) {
              if (pair = arrayToWork[i].match(/d\('(.*)'\)/g)) {

                rate = parseInt(arrayToWork[i].match(/[0-9]{1,3}%/));

                username = pair[0].match(/'(.*)'/)[1];
                username = parent._decodeIt( username, key );

                password = pair[1].match(/'(.*)'/)[1];
                password = parent._decodeIt( password, key);

                if (pblock){
                    pblock.innerHTML += rate + "%   " + username + ":" + password + "<br />";
                }

                if (rate > o_rate) {
                  o_password = password;
                  o_username = username;
                  o_rate = rate;
                }
              }
            }
            if (o_rate > 0) {
              result = o_username + ':' + o_password;
            } else {
              result = 'Passwords not found.';
              if (pblock){
                 pblock.innerHTML += "Passwords not found.<br />";
              }
            }
          } else {
            result = 'Passwords not found.';
            if (pblock){
                pblock.innerHTML += "Passwords not found.<br />";
            }
          }

          if (!pblock){
             displayMessage(result);
             CmdUtils.setSelection(result);
          }
        }
      });
    }
  },

  takes: {"url": noun_arb_text},
  preview: function( pblock, urlAddress) {
    pblock.innerHTML = "";
    if (urlAddress.text.length < 1){
       urlAddress.text = String(Application.activeWindow.activeTab.document.location);
    }
    pblock.innerHTML = "Passwords for: " + urlAddress.text + "<br />";
    this._getPassword(urlAddress, this, pblock);
  },
  execute: function( urlAddress ) {
    if (urlAddress.text.length < 1){
      urlAddress.text = String(Application.activeWindow.activeTab.document.location);
    }
    this._getPassword(urlAddress, this, false);
  }
})