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

   1 <?php if (!defined('PmWiki')) exit();
   2
   3 /*
   4     AesCrypt
   5
   6     Copyright 2011-2013 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 $RecipeInfo['AesCrypt']['Version'] = '2013-01-11';
  14
  15 SDV($AesCryptKDF, 'sha256_dup');
  16 SDV($AesCryptKDFJSCode, "
  17 AesCtr.kdf_custom = function(password, nBits, nonce) {
  18     return '';
  19 }
  20 ");
  21 SDV($AesCryptCipherToken, '(:aes ');
  22 SDV($AesCryptEndToken, ':)');
  23 SDV($AesCryptPadding, 6);
  24
  25 SDV($HTMLStylesFmt['aescrypt'], "
  26 #aescrypt_m {
  27         position: absolute;
  28         z-index: 200;
  29         top: 0px;
  30         left: 0px;
  31         width: 100%;
  32         height: 100%;
  33         opacity: .4;
  34         filter: alpha(opacity=40);
  35         /* this hack is so it works in IE
  36          * I find setting the color in the css gives me more flexibility
  37          * than the PNG solution.
  38          */
  39         background-color:transparent !important;
  40         background-color: #333333;
  41         /* this hack is for opera support
  42          * you can uncomment the background-image if you don't care about opera.
  43          * this gives you the flexibility to use any bg color that you want, instead of the png
  44          */
  45         background-image/**/: url('$PubDirUrl/aescrypt/maskbg.png') !important; // For browsers Moz, Opera, etc.
  46         background-image:none;
  47         background-color:#cccccc;
  48         background-repeat: repeat;
  49         visibility: hidden;
  50 }
  51
  52 .aescrypt_overlay {
  53      visibility: hidden;
  54      position: absolute;
  55      left: 0px;
  56      top: 0px;
  57      width:100%;
  58      height:100%;
  59      text-align:center;
  60      z-index: 1000;
  61 }
  62
  63 .aescrypt_overlay div {
  64      width:300px;
  65      margin: 100px auto;
  66      background-color: #ffffff;
  67      border:1px solid #000000;
  68      padding:15px;
  69      text-align:center;
  70 }
  71
  72 #aescrypt_i {
  73     float:right;
  74 }
  75
  76 ");
  77
  78
  79 $HTMLHeaderFmt['aescrypt_common'] = "
  80 <script type=\"text/javascript\" src=\"\$PubDirUrl/aescrypt/aescrypt.js\"></script>
  81 <script type=\"text/javascript\" src=\"\$PubDirUrl/aescrypt/main.js\"></script>
  82 <script type=\"text/javascript\">
  83 // <![CDATA[
  84
  85 $AesCryptKDFJSCode
  86
  87 /**
  88  * Key derivation function selected by AesCryptKDF variable.
  89  */
  90 AesCtr.kdf = function(password, nBits, nonce) {
  91     return AesCtr.kdf_$AesCryptKDF (password, nBits, nonce);
  92 }
  93
  94 AesCrypt.AesCryptCipherToken = '$AesCryptCipherToken';
  95 AesCrypt.AesCryptEndToken = '$AesCryptEndToken';
  96 AesCrypt.AesCryptPadding = $AesCryptPadding;
  97 AesCrypt.PubDirUrl = '$PubDirUrl/aescrypt';
  98
  99 // ]]>
 100 </script>
 101 ";
 102
 103 /* generate decryption code */
 104 function aescryptMarkup($ciphertext)
 105 {
 106     static $id = 0;
 107     $id++;
 108     $res = "\n";
 109     $res .= "<div id=\"aescrypt_c_$id\" style=\"white-space:pre;display:none;\">$ciphertext</div>";
 110     $res .= "<div id=\"aescrypt_d_$id\">";
 111     $res .= "<a id=\"aescrypt_a_$id\" href=\"javascript:void (0);\" onClick=\"AesCrypt.decPopup($id);\">";
 112     $res .= "[Decrypt]";
 113     $res .= "</a>";
 114     $res .= "</div>";
 115     return $res;
 116 }
 117
 118 Markup('aescrypt',
 119        "<[=",
 120        "/\\Q$AesCryptCipherToken\\E\\s*(.*?)\\s*\\Q$AesCryptEndToken\\E/se",
 121        "aescryptMarkup('$1')");
 122
 123 if ($action == 'edit') {
 124
 125  if (IsEnabled($EnableGUIButtons)) {
 126   $GUIButtons['aescrypt'] = array(750, '', '', '',
 127    "<a href='#' onclick='AesCrypt.encPopup();'><img src='\$GUIButtonDirUrlFmt/aescrypt.png' title='Encrypt' /></a>");
 128  } else {
 129   $MessagesFmt[] = "<input type='button' name='aesButton' value='Encrypt' onClick='AesCrypt.encPopup();'/>";
 130  }
 131 }
 132
 133