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  1. /*
  2.  * OIDplus 2.0
  3.  * Copyright 2019 - 2023 Daniel Marschall, ViaThinkSoft
  4.  *
  5.  * Licensed under the Apache License, Version 2.0 (the "License");
  6.  * you may not use this file except in compliance with the License.
  7.  * You may obtain a copy of the License at
  8.  *
  9.  *     http://www.apache.org/licenses/LICENSE-2.0
  10.  *
  11.  * Unless required by applicable law or agreed to in writing, software
  12.  * distributed under the License is distributed on an "AS IS" BASIS,
  13.  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14.  * See the License for the specific language governing permissions and
  15.  * limitations under the License.
  16.  */
  17.  
  18. var OIDplusObjectTypePluginAid = {
  19.  
  20.         OID: "1.3.6.1.4.1.37476.2.5.2.4.8.11",
  21.  
  22.         generateRandomAID: function(current_aid) {
  23.                 var aid_max_len = 32; // 32 nibbles = 16 bytes
  24.                 var characters  = '0123456789ABCDEF';
  25.                 var counter     = 0;
  26.  
  27.                 if (current_aid.length >= aid_max_len) {
  28.                                 alertWarning(_L("The AID has reached its maximum size."));
  29.                                 return;
  30.                 }
  31.  
  32.  
  33.                 do {
  34.                         var candidate = current_aid == "" ? "F" : current_aid; // category "F" = Unregistered Proprietary AID
  35.                         for ( var i = 0 ; i < aid_max_len - candidate.length ; i++ ) {
  36.                                 candidate += characters.charAt(Math.floor(Math.random() * characters.length));
  37.                         }
  38.  
  39.                         var isPrefixOfExistingAIDs = false;
  40.                         var currentExistingAIDs = [];
  41.                         var dummy = null;
  42.                         var element = null;
  43.                         $("#crudTable tbody a").each(function() {
  44.                             var tmp = this.href.split("?goto=aid%3A");
  45.                             if (tmp.length > 1) {
  46.                                 currentExistingAIDs.push(tmp[1].split("&")[0]);
  47.                             }
  48.                         });
  49.                         $.each(currentExistingAIDs, function(dummy, element) {
  50.                             if (candidate.startsWith(element)) {
  51.                                 isPrefixOfExistingAIDs = true;
  52.                                 return false; // breaks
  53.                             }
  54.                         });
  55.  
  56.                         if (counter++ > 1000) {
  57.                                 alertWarning(_L("Cannot find a free slot for a random AID! Please try again, or try generating a random AID in a subordinate node."));
  58.                                 return;
  59.                         }
  60.                 } while (isPrefixOfExistingAIDs || ((candidate.endsWith('FF') && (candidate.length==aid_max_len))));
  61.  
  62.                 // Note that 16 byte AIDs ending with 0xFF *were* reserved by ISO in ISO 7816-4:1994,
  63.                 // but modern versions of ISO 7816-4 and ISO 7816-4 do not mention this case anymore.
  64.                 // It can be assumed that the usage is safe, but just to be sure, we exclude 16-byte
  65.                 // AIDs ending with 0xFF, in case there are some software implementations which
  66.                 // deny such AIDs.
  67.  
  68.                 $("#id").val(candidate);
  69.         }
  70.  
  71. };
  72.