www-apps/pmwiki/cookbook/AesCrypt/aescrypt.php

   1 <?php if (!defined('PmWiki')) exit();
   2
   3 /*
   4     AesCrypt
   5
   6     Copyright 2011 Anomen (ludek_h@seznam.cz)
   7     This program is free software; you can redistribute it and/or modify
   8     it under the terms of the GNU General Public License as published
   9     by the Free Software Foundation; either version 2 of the License, or
  10     (at your option) any later version.
  11 */
  12
  13 $RecipeInfo['AesCrypt']['Version'] = '2011-10-12';
  14
  15 SDV($AesCryptKDF, 'sha256');
  16 SDV($AesCryptPlainToken, '(:encrypt ');
  17 SDV($AesCryptCipherToken, '(:aes ');
  18 SDV($AesCryptEndToken, ':)');
  19 SDV($AesCryptPadding, 8);
  20
  21
  22 $HTMLHeaderFmt['aescrypt_common'] = "
  23 <script type=\"text/javascript\" src=\"\$PubDirUrl/aescrypt/aescrypt.js\"></script>
  24 <script type=\"text/javascript\">
  25 // <![CDATA[
  26
  27 AesCtr.kdf = AesCtr.kdf_$AesCryptKDF;
  28
  29 function decAesClick(elem) {
  30     var node = elem.childNodes[0];
  31     var nodeDec = elem.childNodes[1];
  32     if (nodeDec.style.visibility=='hidden') {
  33         return;
  34     }
  35     var aesDecrypt = node.childNodes[0].nodeValue;
  36     var res = AesCtr.decrypt(aesDecrypt,prompt('Decrypt key','TopSecret'),256);
  37     res = res.replace(/^\\s\\s*/, '').replace(/\\s\\s*\$/, '');
  38     node.childNodes[0].nodeValue = res;
  39     node.style.display='inline';
  40     nodeDec.style.visibility='hidden';
  41     nodeDec.style.display='none';
  42 }
  43 // ]]>
  44 </script>
  45 ";
  46
  47 if ($action == 'edit') {
  48 $HTMLHeaderFmt['aescrypt_edit'] = "
  49 <script type=\"text/javascript\">
  50 // <![CDATA[
  51
  52 function aesClick() {
  53
  54   var textField = document.getElementById('text');
  55
  56   var markup1 = '$AesCryptPlainToken';
  57   var markup2 = '$AesCryptCipherToken';
  58   var markup_end = '$AesCryptEndToken';
  59   var padding = $AesCryptPadding;
  60
  61   var testt = textField.value;
  62   var tmark2 = 0;
  63   var tarr = new String;
  64   var tmark = testt.indexOf(markup1);
  65
  66   while(tmark >= 0) {
  67    tarr += testt.substring(tmark2,tmark);
  68    tmark2 = testt.indexOf(markup_end,tmark);
  69    var tpart = testt.substring(tmark+markup1.length,tmark2);
  70
  71    tarr += markup2;
  72    var tpass = prompt('Encrypt key for text starting at position '+tmark,'TopSecret');
  73
  74    while ((tpart.length % padding) > 0) {
  75        tpart = tpart.concat(' ');
  76    }
  77
  78    tarr +=AesCtr.encrypt(tpart,tpass,256);
  79    tarr += ' ';
  80    tarr += markup_end;
  81
  82    tmark2 += markup_end.length;
  83    tmark = testt.indexOf(markup1,tmark2);
  84   }
  85
  86   tarr += testt.substr(tmark2);
  87
  88   textField.value = tarr;
  89 }
  90
  91 function registerAesEvent()
  92 {
  93   // TODO: add protection handler to save buttons
  94 /*
  95   var formElement = document.getElementById('text').parentNode;
  96   //alert(formElement.nodeValue);
  97
  98   var inputs = document.getElementsByTagName('input');
  99   var button;
 100   for (var i=0; i < inputs.length; i++)
 101   {
 102      if ((inputs[i].getAttribute('type') == 'submit') && (inputs[i].getAttribute('name') == name))
 103      {
 104         button = inputs[i];
 105      }
 106   }
 107   */
 108
 109 }
 110
 111 if ( document.addEventListener ) {
 112   window.addEventListener( 'load', registerAesEvent, false );
 113 } else if ( document.attachEvent ) {
 114   window.attachEvent( 'onload', registerAesEvent );
 115 }
 116
 117 // ]]>
 118 </script>
 119 ";
 120 }
 121
 122 Markup('aescrypt',
 123        '_begin',
 124        "/\\Q$AesCryptCipherToken\\E\\s*(.*?)\\s*\\Q$AesCryptEndToken\\E/se",
 125        "'\n'.'<a href=\"javascript:void (0);\" onClick=\"decAesClick(this);\"><span style=\"white-space:pre;display:none;\">$1</span><span>[Decrypt]</span></a>'");
 126
 127 if ($action == 'edit') {
 128
 129  if (IsEnabled($EnableGUIButtons)) {
 130   $GUIButtons['aescrypt'] = array(750, '', '', '',
 131    '<a href=\"#\" onclick=\"aesClick(0);\"><img src=\"$GUIButtonDirUrlFmt/aescrypt.png\" title=\"Encrypt\" /></a>');
 132  } else {
 133   $MessagesFmt[] = "<input type='button' name='aesButton' value='Encrypt' onClick='aesClick(0);'/>";
 134  }
 135 }
 136
 137  // DEV
 138 // $GUIButtons['aescryptDebug'] = array(1750, '', '', '',
 139 //  '<a href=\"#\" onclick=\"registerAesEvent();\"><img src=\"$GUIButtonDirUrlFmt/aescrypt.png\" title=\"dev\" /></a>');
 140