vnfmarket/src/main/webapp/vnfmarket/node_modules/socket.io-client/lib/vendor/web-socket-js/flash-src/com/hurlant/util/der/ObjectIdentifier.as

   1 /**\r
   2  * ObjectIdentifier\r
   3  * \r
   4  * An ASN1 type for an ObjectIdentifier\r
   5  * We store the oid in an Array.\r
   6  * Copyright (c) 2007 Henri Torgemane\r
   7  * \r
   8  * See LICENSE.txt for full license information.\r
   9  */\r
  10 package com.hurlant.util.der\r
  11 {\r
  12         import flash.utils.ByteArray;\r
  13         \r
  14         public class ObjectIdentifier implements IAsn1Type\r
  15         {\r
  16                 private var type:uint;\r
  17                 private var len:uint;\r
  18                 private var oid:Array;\r
  19                 \r
  20                 public function ObjectIdentifier(type:uint, length:uint, b:*) {\r
  21                         this.type = type;\r
  22                         this.len = length;\r
  23                         if (b is ByteArray) {\r
  24                                 parse(b as ByteArray);\r
  25                         } else if (b is String) {\r
  26                                 generate(b as String);\r
  27                         } else {\r
  28                                 throw new Error("Invalid call to new ObjectIdentifier");\r
  29                         }\r
  30                 }\r
  31                 \r
  32                 private function generate(s:String):void {\r
  33                         oid = s.split(".");\r
  34                 }\r
  35                 \r
  36                 private function parse(b:ByteArray):void {\r
  37                         // parse stuff\r
  38                         // first byte = 40*value1 + value2\r
  39                         var o:uint = b.readUnsignedByte();\r
  40                         var a:Array = []\r
  41                         a.push(uint(o/40));\r
  42                         a.push(uint(o%40));\r
  43                         var v:uint = 0;\r
  44                         while (b.bytesAvailable>0) {\r
  45                                 o = b.readUnsignedByte();\r
  46                                 var last:Boolean = (o&0x80)==0;\r
  47                                 o &= 0x7f;\r
  48                                 v = v*128 + o;\r
  49                                 if (last) {\r
  50                                         a.push(v);\r
  51                                         v = 0;\r
  52                                 }\r
  53                         }\r
  54                         oid = a;\r
  55                 }\r
  56                 \r
  57                 public function getLength():uint\r
  58                 {\r
  59                         return len;\r
  60                 }\r
  61                 \r
  62                 public function getType():uint\r
  63                 {\r
  64                         return type;\r
  65                 }\r
  66                 \r
  67                 public function toDER():ByteArray {\r
  68                         var tmp:Array = [];\r
  69                         tmp[0] = oid[0]*40 + oid[1];\r
  70                         for (var i:int=2;i<oid.length;i++) {\r
  71                                 var v:int = parseInt(oid[i]);\r
  72                                 if (v<128) {\r
  73                                         tmp.push(v);\r
  74                                 } else if (v<128*128) {\r
  75                                         tmp.push( (v>>7)|0x80 );\r
  76                                         tmp.push( v&0x7f );\r
  77                                 } else if (v<128*128*128) {\r
  78                                         tmp.push( (v>>14)|0x80 );\r
  79                                         tmp.push( (v>>7)&0x7f | 0x80 );\r
  80                                         tmp.push( v&0x7f);\r
  81                                 } else if (v<128*128*128*128) {\r
  82                                         tmp.push( (v>>21)|0x80 );\r
  83                                         tmp.push( (v>>14) & 0x7f | 0x80 );\r
  84                                         tmp.push( (v>>7) & 0x7f | 0x80 );\r
  85                                         tmp.push( v & 0x7f );\r
  86                                 } else {\r
  87                                         throw new Error("OID element bigger than we thought. :(");\r
  88                                 }\r
  89                         }\r
  90                         len = tmp.length;\r
  91                         if (type==0) {\r
  92                                 type = 6;\r
  93                         }\r
  94                         tmp.unshift(len); // assume length is small enough to fit here.\r
  95                         tmp.unshift(type);\r
  96                         var b:ByteArray = new ByteArray;\r
  97                         for (i=0;i<tmp.length;i++) {\r
  98                                 b[i] = tmp[i];\r
  99                         }\r
 100                         return b;\r
 101                 }\r
 102 \r
 103                 public function toString():String {\r
 104                         return DER.indent+oid.join(".");\r
 105                 }\r
 106                 \r
 107                 public function dump():String {\r
 108                         return "OID["+type+"]["+len+"]["+toString()+"]";\r
 109                 }\r
 110                 \r
 111         }\r
 112 }