www-apps/pmwiki/cookbook/AesCrypt/attic/aescrypt.00.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 $RecipeInfo['AesCrypt']['Version'] = '2012-12-17-DEV';
  14
  15 SDV($AesCryptKDF, 'sha256_dup');
  16 SDV($AesCryptPlainToken, '(:encrypt ');
  17 SDV($AesCryptCipherToken, '(:aes ');
  18 SDV($AesCryptEndToken, ':)');
  19 SDV($AesCryptPadding, 8);
  20 SDV($AesCryptSelectionMode, true);
  21
  22 SDV($HTMLStylesFmt['aescrypt'], "
  23 .aescrypt_overlay {
  24      visibility: hidden;
  25      position: absolute;
  26      left: 0px;
  27      top: 0px;
  28      width:100%;
  29      height:100%;
  30      text-align:center;
  31      z-index: 1000;
  32 }
  33
  34 .aescrypt_overlay div {
  35      width:300px;
  36      margin: 100px auto;
  37      background-color: #ffffff;
  38      border:1px solid #000000;
  39      padding:15px;
  40      text-align:center;
  41 }
  42 ");
  43
  44
  45 $HTMLHeaderFmt['aescrypt_common'] = "
  46 <script type=\"text/javascript\" src=\"\$PubDirUrl/aescrypt/aescrypt.js\"></script>
  47 <script type=\"text/javascript\">
  48 // <![CDATA[
  49
  50 function aescryptOverlay(id, state) {
  51   var el = document.getElementById('aescrypt_o_'+id);
  52   el.style.visibility = state ? 'visible' : 'hidden';
  53   if (state) {
  54     var pw = document.getElementById('aescrypt_p_'+id);
  55     pw.focus();
  56   }
  57 }
  58
  59 function aescryptDecSubmit(id)
  60 {
  61  aescryptOverlay(id, false);
  62  var pwel = document.getElementById('aescrypt_p_'+id);
  63  var pw = pwel.value;
  64  var pwel = document.getElementById('aescrypt_c_'+id);
  65
  66  var contentel = document.getElementById('aescrypt_c_'+id);
  67  var cipher = contentel.childNodes[0].nodeValue;
  68  var plain = AesCtr.decrypt(cipher,pw,256);
  69  contentel.childNodes[0].nodeValue = plain;
  70  contentel.style.display='block';
  71
  72  var linkel = document.getElementById('aescrypt_a_'+id);
  73  linkel.style.visibility='hidden';
  74  linkel.style.display='none';
  75 }
  76
  77
  78
  79 AesCtr.kdf = function(password, nBits, nonce) {
  80     return AesCtr.kdf_$AesCryptKDF (password, nBits, nonce);
  81 }
  82
  83 function aescryptDecClick(elem) {
  84     var node = elem.childNodes[0];
  85     var nodeDec = elem.childNodes[1];
  86     if (nodeDec.style.visibility=='hidden') {
  87         return;
  88     }
  89     var aesDecrypt = node.childNodes[0].nodeValue;
  90     var res = AesCtr.decrypt(aesDecrypt,prompt('Decrypt key','TopSecret'),256);
  91     res = res.replace(/^\\s\\s*/, '').replace(/\\s\\s*\$/, '');
  92     node.childNodes[0].nodeValue = res;
  93     node.style.display='block';
  94     nodeDec.style.visibility='hidden';
  95     nodeDec.style.display='none';
  96 }
  97
  98 function aescryptOverlayDecClick(elem) {
  99     aescryptOverlay();
 100     var node = elem.childNodes[0];
 101     var crypted = node.childNodes[0].nodeValue;
 102     var aesDecrypt = getElementById('aescryptLabel').nodevalue = crypted;
 103 }
 104
 105
 106 // ]]>
 107 </script>
 108 ";
 109
 110 if ($action == 'edit') {
 111 $HTMLHeaderFmt['aescrypt_edit'] = "
 112 <script type=\"text/javascript\">
 113 // <![CDATA[
 114
 115 function aescryptEncSubmit() {
 116
 117     var pwel = document.getElementById('aescrypt_p_0');
 118     var pw = pwel.value;
 119
 120     aescryptOverlay(0, false);
 121
 122   // find selection
 123   var textarea = document.getElementById('text');
 124
 125   if (document.selection) { // IE variant
 126     textarea.focus();
 127     var sel = document.selection.createRange();
 128     // alert the selected text in textarea
 129     // alert(sel.text);
 130     // Finally replace the value of the selected text with this new replacement one
 131     if (sel != null && sel.text != null && sel.text != '' ) {
 132         sel.text = aesPrompt(pw, sel.text);
 133     } else {
 134         alert('Please select text to encrypt');
 135     }
 136   } else {
 137     var len = textarea.value.length;
 138     var start = textarea.selectionStart;
 139     var end = textarea.selectionEnd;
 140     var sel = textarea.value.substring(start, end);
 141
 142     if (start  < end) {
 143         var replace =  aesOverlayPrompt(pw, sel);
 144         // Here we are replacing the selected text with this one
 145         textarea.value =  textarea.value.substring(0,start) + replace + textarea.value.substring(end,len);
 146     }
 147     else {
 148         alert('Please select text to encrypt');
 149         return;
 150     }
 151   }
 152 }
 153
 154
 155 function aesOverlayPrompt(pass, tpart) {
 156     var padding = $AesCryptPadding;
 157     var tarr = '$AesCryptCipherToken';
 158     var markup_end = '$AesCryptEndToken';
 159
 160     while ((tpart.length % padding) > 0) {
 161        tpart = tpart.concat(' ');
 162     }
 163
 164     tarr +=AesCtr.encrypt(tpart,pass,256);
 165     tarr += ' ';
 166     tarr += markup_end;
 167     return tarr;
 168 }
 169
 170 function aesPrompt(tmark, tpart) {
 171     var padding = $AesCryptPadding;
 172     var tarr = '$AesCryptCipherToken';
 173     var markup_end = '$AesCryptEndToken';
 174
 175     var tpass = prompt('Encrypt key for text starting at position '+tmark,'TopSecret');
 176
 177     while ((tpart.length % padding) > 0) {
 178        tpart = tpart.concat(' ');
 179     }
 180
 181     tarr +=AesCtr.encrypt(tpart,tpass,256);
 182     tarr += ' ';
 183     tarr += markup_end;
 184     return tarr;
 185 }
 186
 187 function aesSelectionClick() {
 188
 189   var textarea = document.getElementById('text');
 190
 191   if (document.selection) { // IE variant
 192     textarea.focus();
 193     var sel = document.selection.createRange();
 194     // alert the selected text in textarea
 195     // alert(sel.text);
 196     // Finally replace the value of the selected text with this new replacement one
 197     if (sel != null && sel.text != null && sel.text != '' ) {
 198         sel.text = aesPrompt('[selection]', sel.text);
 199     } else {
 200         alert('Please select text to encrypt');
 201     }
 202   } else {
 203     var len = textarea.value.length;
 204     var start = textarea.selectionStart;
 205     var end = textarea.selectionEnd;
 206     var sel = textarea.value.substring(start, end);
 207
 208     if (start  < end) {
 209         var replace =  aesPrompt(start, sel);
 210         // Here we are replacing the selected text with this one
 211         textarea.value =  textarea.value.substring(0,start) + replace + textarea.value.substring(end,len);
 212     }
 213     else {
 214         alert('Please select text to encrypt');
 215         return;
 216     }
 217   }
 218
 219 }
 220
 221 function aescryptDecSubmit($id)
 222 {
 223     aescryptOverlay(false);
 224     var textField = document.getElementById('aescrypt_c_$id');
 225     var enc = elem.childNodes[0];
 226     alert (enc);
 227 }
 228
 229 function aesClick() {
 230
 231   var textField = document.getElementById('text');
 232
 233   var markup1 = '$AesCryptPlainToken';
 234   var markup2 = '$AesCryptCipherToken';
 235   var markup_end = '$AesCryptEndToken';
 236   var padding = $AesCryptPadding;
 237
 238   var testt = textField.value;
 239   var tmark2 = 0;
 240   var tarr = new String;
 241   var tmark = testt.indexOf(markup1);
 242
 243   while(tmark >= 0) {
 244    tarr += testt.substring(tmark2,tmark);
 245    tmark2 = testt.indexOf(markup_end,tmark);
 246    var tpart = testt.substring(tmark+markup1.length,tmark2);
 247
 248    tarr += aesPrompt(tmark, tpart);
 249
 250    tmark2 += markup_end.length;
 251    tmark = testt.indexOf(markup1,tmark2);
 252   }
 253
 254   tarr += testt.substr(tmark2);
 255
 256   textField.value = tarr;
 257 }
 258
 259 function registerAesEvent()
 260 {
 261   // TODO: add protection handler to save buttons
 262 /*
 263   var formElement = document.getElementById('text').parentNode;
 264   //alert(formElement.nodeValue);
 265
 266   var inputs = document.getElementsByTagName('input');
 267   var button;
 268   for (var i=0; i < inputs.length; i++)
 269   {
 270      if ((inputs[i].getAttribute('type') == 'submit') && (inputs[i].getAttribute('name') == name))
 271      {
 272         button = inputs[i];
 273      }
 274   }
 275   */
 276
 277 }
 278
 279 if ( document.addEventListener ) {
 280   window.addEventListener( 'load', registerAesEvent, false );
 281 } else if ( document.attachEvent ) {
 282   window.attachEvent( 'onload', registerAesEvent );
 283 }
 284
 285 // ]]>
 286 </script>
 287 ";
 288 }
 289
 290
 291 function aescryptMarkup($ciphertext)
 292 {
 293     static $id = 0;
 294     $id++;
 295     $res = "\n";
 296     $res .= "<div id=\"aescrypt_c_$id\" style=\"white-space:pre;display:none;\">$ciphertext</div>";
 297     $res .= "<div id=\"aescrypt_d_$id\">";
 298     $res .= "<a id=\"aescrypt_a_$id\" href=\"javascript:void (0);\" onClick=\"aescryptOverlay($id, true);\">";
 299     $res .= "[Decrypt]";
 300     $res .= "</a>";
 301     $res .= "</div>";
 302     $c = $ciphertext;
 303     if (strlen($c) > 30) {
 304       $c = substr($c, 0, 27) . "...";
 305     }
 306     $res .= "<div id=\"aescrypt_o_$id\" class=\"aescrypt_overlay\">
 307      <div>
 308           <p id=\"aescrypt_l_$id\">Decrypting \"$c\".</p>
 309           <form id=\"aescrypt_f_$id\" onsubmit=\"aescryptDecSubmit($id);return false;\">
 310            <label for=\"aescrypt_p_$id\">Password </label>
 311            <input type=\"password\" name=\"aescrypt_p_$id\" id=\"aescrypt_p_$id\" />
 312            <input type=\"submit\"  />
 313           </form>
 314         </div>
 315     </div>";
 316
 317     return $res;
 318 }
 319
 320 Markup('aescrypt',
 321        'directives',
 322        "/\\Q$AesCryptCipherToken\\E\\s*(.*?)\\s*\\Q$AesCryptEndToken\\E/se",
 323        "aescryptMarkup('$1')");
 324
 325 if ($action == 'edit') {
 326
 327  if (IsEnabled($EnableGUIButtons)) {
 328   $GUIButtons['aescrypt'] = array(750, '', '', '',
 329   // TODO:  add overlay DIV here & test browsers
 330    "<a href='#' onclick=\"aescryptOverlay(0, true);\"><img src='\$GUIButtonDirUrlFmt/aescrypt.png' title='Encrypt' /></a>
 331      <div id=\"aescrypt_o_0\" class=\"aescrypt_overlay\">
 332      <div>
 333           <p id=\"aescrypt_l_0\">Encrypt selected text:</p>
 334           <form id=\"aescrypt_f_0\" onsubmit=\"aescryptEncSubmit();return false;\">
 335            <input type=\"password\" name=\"aescrypt_p_0\" id=\"aescrypt_p_0\" />
 336            <input type=\"submit\"  />
 337           </form>
 338         </div>
 339     </div>");
 340
 341  } else {
 342   // TODO: simply add overlay DIV here
 343   $MessagesFmt[] = "<input type='button' name='aesButton' value='Encrypt' onClick=\"aescryptOverlay(0, true);\"/>
 344      <div id=\"aescrypt_o_0\" class=\"aescrypt_overlay\">
 345      <div>
 346           <p id=\"aescrypt_l_0\">Encrypt selected text:</p>
 347           <form id=\"aescrypt_f_0\" onsubmit=\"aescryptEncSubmit();return false;\">
 348            <input type=\"password\" name=\"aescrypt_p_0\" id=\"aescrypt_p_0\" />
 349            <input type=\"submit\"  />
 350           </form>
 351         </div>
 352     </div>";
 353
 354  }
 355 }
 356
 357