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annotate src/org/eclipse/jetty/util/B64Code.java @ 808:b3176fd168bf

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replace use of jetty.util.B64Code with java.util.Base64
author Franklin Schmidt <fschmidt@gmail.com>
date Thu, 08 Sep 2016 16:13:27 -0600
parents 3428c60d7cfc
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 //
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2 // ========================================================================
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3 // Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
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4 // ------------------------------------------------------------------------
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5 // All rights reserved. This program and the accompanying materials
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6 // are made available under the terms of the Eclipse Public License v1.0
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7 // and Apache License v2.0 which accompanies this distribution.
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8 //
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9 // The Eclipse Public License is available at
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10 // http://www.eclipse.org/legal/epl-v10.html
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11 //
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12 // The Apache License v2.0 is available at
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13 // http://www.opensource.org/licenses/apache2.0.php
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14 //
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15 // You may elect to redistribute this code under either of these licenses.
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16 // ========================================================================
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17 //
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18
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19 package org.eclipse.jetty.util;
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20
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21 import java.io.ByteArrayOutputStream;
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22 import java.io.IOException;
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23 import java.io.UnsupportedEncodingException;
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24
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25
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26 /* ------------------------------------------------------------ */
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27 /** Fast B64 Encoder/Decoder as described in RFC 1421.
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28 * <p>Does not insert or interpret whitespace as described in RFC
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29 * 1521. If you require this you must pre/post process your data.
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30 * <p> Note that in a web context the usual case is to not want
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31 * linebreaks or other white space in the encoded output.
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32 *
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33 */
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34 public class B64Code
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35 {
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36 // ------------------------------------------------------------------
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37 static final char __pad='=';
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38 static final char[] __rfc1421alphabet=
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39 {
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40 'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P',
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41 'Q','R','S','T','U','V','W','X','Y','Z','a','b','c','d','e','f',
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42 'g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v',
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43 'w','x','y','z','0','1','2','3','4','5','6','7','8','9','+','/'
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44 };
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45
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46 static final byte[] __rfc1421nibbles;
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47
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48 static
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49 {
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50 __rfc1421nibbles=new byte[256];
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51 for (int i=0;i<256;i++)
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52 __rfc1421nibbles[i]=-1;
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53 for (byte b=0;b<64;b++)
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54 __rfc1421nibbles[(byte)__rfc1421alphabet[b]]=b;
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55 __rfc1421nibbles[(byte)__pad]=0;
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56 }
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57
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58 // ------------------------------------------------------------------
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59 /**
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60 * Base 64 encode as described in RFC 1421.
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61 * <p>Does not insert whitespace as described in RFC 1521.
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62 * @param s String to encode.
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63 * @return String containing the encoded form of the input.
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64 */
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65 static public String encode(String s)
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66 {
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67 try
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68 {
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69 return encode(s,null);
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70 }
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71 catch (UnsupportedEncodingException e)
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72 {
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73 throw new IllegalArgumentException(e.toString());
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74 }
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75 }
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76
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77 // ------------------------------------------------------------------
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78 /**
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79 * Base 64 encode as described in RFC 1421.
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80 * <p>Does not insert whitespace as described in RFC 1521.
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81 * @param s String to encode.
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82 * @param charEncoding String representing the name of
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83 * the character encoding of the provided input String.
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84 * @return String containing the encoded form of the input.
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85 */
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86 static public String encode(String s,String charEncoding)
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87 throws UnsupportedEncodingException
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88 {
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89 byte[] bytes;
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90 if (charEncoding==null)
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91 bytes=s.getBytes(StringUtil.__ISO_8859_1);
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92 else
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93 bytes=s.getBytes(charEncoding);
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94
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95 return new String(encode(bytes));
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96 }
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97
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98 // ------------------------------------------------------------------
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99 /**
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100 * Fast Base 64 encode as described in RFC 1421.
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101 * <p>Does not insert whitespace as described in RFC 1521.
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102 * <p> Avoids creating extra copies of the input/output.
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103 * @param b byte array to encode.
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104 * @return char array containing the encoded form of the input.
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105 */
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106 static public char[] encode(byte[] b)
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107 {
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108 if (b==null)
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109 return null;
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110
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111 int bLen=b.length;
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112 int cLen=((bLen+2)/3)*4;
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113 char c[]=new char[cLen];
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114 int ci=0;
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115 int bi=0;
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116 byte b0, b1, b2;
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117 int stop=(bLen/3)*3;
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118 while (bi<stop)
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119 {
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120 b0=b[bi++];
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121 b1=b[bi++];
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122 b2=b[bi++];
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123 c[ci++]=__rfc1421alphabet[(b0>>>2)&0x3f];
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124 c[ci++]=__rfc1421alphabet[(b0<<4)&0x3f|(b1>>>4)&0x0f];
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125 c[ci++]=__rfc1421alphabet[(b1<<2)&0x3f|(b2>>>6)&0x03];
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126 c[ci++]=__rfc1421alphabet[b2&077];
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127 }
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128
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129 if (bLen!=bi)
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130 {
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131 switch (bLen%3)
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132 {
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133 case 2:
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134 b0=b[bi++];
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135 b1=b[bi++];
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136 c[ci++]=__rfc1421alphabet[(b0>>>2)&0x3f];
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137 c[ci++]=__rfc1421alphabet[(b0<<4)&0x3f|(b1>>>4)&0x0f];
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138 c[ci++]=__rfc1421alphabet[(b1<<2)&0x3f];
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139 c[ci++]=__pad;
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140 break;
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141
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142 case 1:
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143 b0=b[bi++];
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144 c[ci++]=__rfc1421alphabet[(b0>>>2)&0x3f];
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145 c[ci++]=__rfc1421alphabet[(b0<<4)&0x3f];
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146 c[ci++]=__pad;
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147 c[ci++]=__pad;
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148 break;
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149
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150 default:
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151 break;
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152 }
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153 }
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154
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155 return c;
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156 }
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157
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158 // ------------------------------------------------------------------
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159 /**
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160 * Fast Base 64 encode as described in RFC 1421 and RFC2045
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161 * <p>Does not insert whitespace as described in RFC 1521, unless rfc2045 is passed as true.
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162 * <p> Avoids creating extra copies of the input/output.
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163 * @param b byte array to encode.
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164 * @param rfc2045 If true, break lines at 76 characters with CRLF
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165 * @return char array containing the encoded form of the input.
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166 */
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167 static public char[] encode(byte[] b, boolean rfc2045)
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168 {
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169 if (b==null)
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170 return null;
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171 if (!rfc2045)
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172 return encode(b);
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173
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174 int bLen=b.length;
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175 int cLen=((bLen+2)/3)*4;
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176 cLen+=2+2*(cLen/76);
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177 char c[]=new char[cLen];
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178 int ci=0;
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179 int bi=0;
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180 byte b0, b1, b2;
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181 int stop=(bLen/3)*3;
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182 int l=0;
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183 while (bi<stop)
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184 {
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185 b0=b[bi++];
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186 b1=b[bi++];
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187 b2=b[bi++];
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188 c[ci++]=__rfc1421alphabet[(b0>>>2)&0x3f];
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189 c[ci++]=__rfc1421alphabet[(b0<<4)&0x3f|(b1>>>4)&0x0f];
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190 c[ci++]=__rfc1421alphabet[(b1<<2)&0x3f|(b2>>>6)&0x03];
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191 c[ci++]=__rfc1421alphabet[b2&077];
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192 l+=4;
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193 if (l%76==0)
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194 {
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195 c[ci++]=13;
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196 c[ci++]=10;
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197 }
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198 }
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199
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200 if (bLen!=bi)
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201 {
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202 switch (bLen%3)
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203 {
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204 case 2:
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205 b0=b[bi++];
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206 b1=b[bi++];
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207 c[ci++]=__rfc1421alphabet[(b0>>>2)&0x3f];
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208 c[ci++]=__rfc1421alphabet[(b0<<4)&0x3f|(b1>>>4)&0x0f];
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209 c[ci++]=__rfc1421alphabet[(b1<<2)&0x3f];
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210 c[ci++]=__pad;
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211 break;
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212
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213 case 1:
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214 b0=b[bi++];
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215 c[ci++]=__rfc1421alphabet[(b0>>>2)&0x3f];
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216 c[ci++]=__rfc1421alphabet[(b0<<4)&0x3f];
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217 c[ci++]=__pad;
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218 c[ci++]=__pad;
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219 break;
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220
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221 default:
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222 break;
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223 }
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224 }
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225
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226 c[ci++]=13;
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227 c[ci++]=10;
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228 return c;
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229 }
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230
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231 // ------------------------------------------------------------------
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232 /**
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233 * Base 64 decode as described in RFC 2045.
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234 * <p>Unlike {@link #decode(char[])}, extra whitespace is ignored.
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235 * @param encoded String to decode.
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236 * @param charEncoding String representing the character encoding
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237 * used to map the decoded bytes into a String.
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238 * @return String decoded byte array.
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239 * @throws UnsupportedEncodingException if the encoding is not supported
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240 * @throws IllegalArgumentException if the input is not a valid
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241 * B64 encoding.
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242 */
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243 static public String decode(String encoded,String charEncoding)
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244 throws UnsupportedEncodingException
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245 {
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246 byte[] decoded=decode(encoded);
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247 if (charEncoding==null)
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248 return new String(decoded);
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249 return new String(decoded,charEncoding);
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250 }
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251
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diff changeset
252 /* ------------------------------------------------------------ */
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diff changeset
253 /**
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254 * Fast Base 64 decode as described in RFC 1421.
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diff changeset
255 *
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diff changeset
256 * <p>Unlike other decode methods, this does not attempt to
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diff changeset
257 * cope with extra whitespace as described in RFC 1521/2045.
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diff changeset
258 * <p> Avoids creating extra copies of the input/output.
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diff changeset
259 * <p> Note this code has been flattened for performance.
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260 * @param b char array to decode.
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261 * @return byte array containing the decoded form of the input.
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262 * @throws IllegalArgumentException if the input is not a valid
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263 * B64 encoding.
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264 */
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265 static public byte[] decode(char[] b)
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266 {
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diff changeset
267 if (b==null)
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268 return null;
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269
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diff changeset
270 int bLen=b.length;
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diff changeset
271 if (bLen%4!=0)
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272 throw new IllegalArgumentException("Input block size is not 4");
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diff changeset
273
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diff changeset
274 int li=bLen-1;
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diff changeset
275 while (li>=0 && b[li]==(byte)__pad)
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276 li--;
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277
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diff changeset
278 if (li<0)
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279 return new byte[0];
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280
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diff changeset
281 // Create result array of exact required size.
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282 int rLen=((li+1)*3)/4;
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283 byte r[]=new byte[rLen];
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diff changeset
284 int ri=0;
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diff changeset
285 int bi=0;
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diff changeset
286 int stop=(rLen/3)*3;
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diff changeset
287 byte b0,b1,b2,b3;
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diff changeset
288 try
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diff changeset
289 {
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diff changeset
290 while (ri<stop)
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291 {
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diff changeset
292 b0=__rfc1421nibbles[b[bi++]];
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293 b1=__rfc1421nibbles[b[bi++]];
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diff changeset
294 b2=__rfc1421nibbles[b[bi++]];
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295 b3=__rfc1421nibbles[b[bi++]];
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diff changeset
296 if (b0<0 || b1<0 || b2<0 || b3<0)
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297 throw new IllegalArgumentException("Not B64 encoded");
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diff changeset
298
3428c60d7cfc replace jetty jars with source
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299 r[ri++]=(byte)(b0<<2|b1>>>4);
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300 r[ri++]=(byte)(b1<<4|b2>>>2);
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diff changeset
301 r[ri++]=(byte)(b2<<6|b3);
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diff changeset
302 }
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diff changeset
303
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diff changeset
304 if (rLen!=ri)
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diff changeset
305 {
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diff changeset
306 switch (rLen%3)
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diff changeset
307 {
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diff changeset
308 case 2:
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diff changeset
309 b0=__rfc1421nibbles[b[bi++]];
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diff changeset
310 b1=__rfc1421nibbles[b[bi++]];
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diff changeset
311 b2=__rfc1421nibbles[b[bi++]];
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diff changeset
312 if (b0<0 || b1<0 || b2<0)
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diff changeset
313 throw new IllegalArgumentException("Not B64 encoded");
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diff changeset
314 r[ri++]=(byte)(b0<<2|b1>>>4);
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diff changeset
315 r[ri++]=(byte)(b1<<4|b2>>>2);
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diff changeset
316 break;
3428c60d7cfc replace jetty jars with source
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diff changeset
317
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
318 case 1:
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diff changeset
319 b0=__rfc1421nibbles[b[bi++]];
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diff changeset
320 b1=__rfc1421nibbles[b[bi++]];
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diff changeset
321 if (b0<0 || b1<0)
3428c60d7cfc replace jetty jars with source
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diff changeset
322 throw new IllegalArgumentException("Not B64 encoded");
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
323 r[ri++]=(byte)(b0<<2|b1>>>4);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
324 break;
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
325
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
326 default:
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parents:
diff changeset
327 break;
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parents:
diff changeset
328 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
329 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
330 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
331 catch (IndexOutOfBoundsException e)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
332 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
333 throw new IllegalArgumentException("char "+bi
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
334 +" was not B64 encoded");
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parents:
diff changeset
335 }
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parents:
diff changeset
336
3428c60d7cfc replace jetty jars with source
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337 return r;
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
338 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
339
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
340 /* ------------------------------------------------------------ */
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parents:
diff changeset
341 /**
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parents:
diff changeset
342 * Base 64 decode as described in RFC 2045.
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parents:
diff changeset
343 * <p>Unlike {@link #decode(char[])}, extra whitespace is ignored.
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diff changeset
344 * @param encoded String to decode.
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parents:
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345 * @return byte array containing the decoded form of the input.
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parents:
diff changeset
346 * @throws IllegalArgumentException if the input is not a valid
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diff changeset
347 * B64 encoding.
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diff changeset
348 */
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diff changeset
349 static public byte[] decode(String encoded)
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diff changeset
350 {
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parents:
diff changeset
351 if (encoded==null)
3428c60d7cfc replace jetty jars with source
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parents:
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352 return null;
3428c60d7cfc replace jetty jars with source
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diff changeset
353
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
354 ByteArrayOutputStream bout = new ByteArrayOutputStream(4*encoded.length()/3);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
355 decode(encoded, bout);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
356 return bout.toByteArray();
3428c60d7cfc replace jetty jars with source
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diff changeset
357 }
3428c60d7cfc replace jetty jars with source
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diff changeset
358
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
359 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
360 /**
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
361 * Base 64 decode as described in RFC 2045.
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
362 * <p>Unlike {@link #decode(char[])}, extra whitespace is ignored.
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
363 * @param encoded String to decode.
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
364 * @param output stream for decoded bytes
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
365 * @return byte array containing the decoded form of the input.
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
366 * @throws IllegalArgumentException if the input is not a valid
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
367 * B64 encoding.
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
368 */
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
369 static public void decode (String encoded, ByteArrayOutputStream bout)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
370 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
371 if (encoded==null)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
372 return;
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
373
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
374 if (bout == null)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
375 throw new IllegalArgumentException("No outputstream for decoded bytes");
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
376
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
377 int ci=0;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
378 byte nibbles[] = new byte[4];
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
379 int s=0;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
380
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
381 while (ci<encoded.length())
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
382 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
383 char c=encoded.charAt(ci++);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
384
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
385 if (c==__pad)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
386 break;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
387
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
388 if (Character.isWhitespace(c))
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
389 continue;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
390
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
391 byte nibble=__rfc1421nibbles[c];
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
392 if (nibble<0)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
393 throw new IllegalArgumentException("Not B64 encoded");
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
394
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
395 nibbles[s++]=__rfc1421nibbles[c];
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
396
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
397 switch(s)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
398 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
399 case 1:
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
400 break;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
401 case 2:
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
402 bout.write(nibbles[0]<<2|nibbles[1]>>>4);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
403 break;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
404 case 3:
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
405 bout.write(nibbles[1]<<4|nibbles[2]>>>2);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
406 break;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
407 case 4:
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
408 bout.write(nibbles[2]<<6|nibbles[3]);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
409 s=0;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
410 break;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
411 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
412
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
413 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
414
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
415 return;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
416 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
417
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
418
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
419 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
420 public static void encode(int value,Appendable buf) throws IOException
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
421 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
422 buf.append(__rfc1421alphabet[0x3f&((0xFC000000&value)>>26)]);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
423 buf.append(__rfc1421alphabet[0x3f&((0x03F00000&value)>>20)]);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
424 buf.append(__rfc1421alphabet[0x3f&((0x000FC000&value)>>14)]);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
425 buf.append(__rfc1421alphabet[0x3f&((0x00003F00&value)>>8)]);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
426 buf.append(__rfc1421alphabet[0x3f&((0x000000FC&value)>>2)]);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
427 buf.append(__rfc1421alphabet[0x3f&((0x00000003&value)<<4)]);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
428 buf.append('=');
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
429 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
430
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
431 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
432 public static void encode(long lvalue,Appendable buf) throws IOException
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
433 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
434 int value=(int)(0xFFFFFFFC&(lvalue>>32));
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
435 buf.append(__rfc1421alphabet[0x3f&((0xFC000000&value)>>26)]);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
436 buf.append(__rfc1421alphabet[0x3f&((0x03F00000&value)>>20)]);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
437 buf.append(__rfc1421alphabet[0x3f&((0x000FC000&value)>>14)]);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
438 buf.append(__rfc1421alphabet[0x3f&((0x00003F00&value)>>8)]);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
439 buf.append(__rfc1421alphabet[0x3f&((0x000000FC&value)>>2)]);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
440
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
441 buf.append(__rfc1421alphabet[0x3f&((0x00000003&value)<<4) + (0xf&(int)(lvalue>>28))]);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
442
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
443 value=0x0FFFFFFF&(int)lvalue;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
444 buf.append(__rfc1421alphabet[0x3f&((0x0FC00000&value)>>22)]);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
445 buf.append(__rfc1421alphabet[0x3f&((0x003F0000&value)>>16)]);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
446 buf.append(__rfc1421alphabet[0x3f&((0x0000FC00&value)>>10)]);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
447 buf.append(__rfc1421alphabet[0x3f&((0x000003F0&value)>>4)]);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
448 buf.append(__rfc1421alphabet[0x3f&((0x0000000F&value)<<2)]);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
449 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
450 }