annotate src/org/eclipse/jetty/util/URIUtil.java @ 1036:b87f97f6418a

minor
author Franklin Schmidt <fschmidt@gmail.com>
date Thu, 03 Nov 2016 21:42:41 -0600
parents 6939226e0ac4
children
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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.UnsupportedEncodingException;
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22 import java.net.URI;
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23 import java.net.URLEncoder;
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24
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25
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26
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27 /* ------------------------------------------------------------ */
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28 /** URI Holder.
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29 * This class assists with the decoding and encoding or HTTP URI's.
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30 * It differs from the java.net.URL class as it does not provide
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31 * communications ability, but it does assist with query string
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32 * formatting.
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33 * <P>UTF-8 encoding is used by default for % encoded characters. This
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34 * may be overridden with the org.eclipse.jetty.util.URI.charset system property.
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35 * @see UrlEncoded
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36 *
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37 */
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38 public final class URIUtil {
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39 // Use UTF-8 as per http://www.w3.org/TR/html40/appendix/notes.html#non-ascii-chars
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40 public static final String __CHARSET = StringUtil.__UTF8;
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41
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42 private URIUtil()
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43 {}
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44
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45 /* ------------------------------------------------------------ */
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46 /** Encode a URI path.
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47 * This is the same encoding offered by URLEncoder, except that
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48 * the '/' character is not encoded.
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49 * @param path The path the encode
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50 * @return The encoded path
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51 */
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52 public static String encodePath(String path)
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53 {
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54 if (path==null || path.length()==0)
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55 return path;
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56
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57 StringBuilder buf = encodePath(null,path);
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58 return buf==null?path:buf.toString();
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59 }
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60
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61 /* ------------------------------------------------------------ */
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62 /** Encode a URI path.
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63 * @param path The path the encode
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64 * @param buf StringBuilder to encode path into (or null)
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65 * @return The StringBuilder or null if no substitutions required.
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66 */
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67 public static StringBuilder encodePath(StringBuilder buf, String path)
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68 {
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69 byte[] bytes=null;
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70 if (buf==null)
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71 {
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72 loop:
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73 for (int i=0;i<path.length();i++)
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74 {
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75 char c=path.charAt(i);
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76 switch(c)
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77 {
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78 case '%':
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79 case '?':
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80 case ';':
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81 case '#':
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82 case '\'':
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83 case '"':
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84 case '<':
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85 case '>':
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86 case ' ':
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87 buf=new StringBuilder(path.length()*2);
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88 break loop;
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89 default:
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90 if (c>127)
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91 {
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92 try
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93 {
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94 bytes=path.getBytes(URIUtil.__CHARSET);
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95 }
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96 catch (UnsupportedEncodingException e)
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97 {
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98 throw new IllegalStateException(e);
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99 }
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100 buf=new StringBuilder(path.length()*2);
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101 break loop;
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102 }
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103
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104 }
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105 }
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106 if (buf==null)
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107 return null;
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108 }
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109
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110 synchronized(buf)
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111 {
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112 if (bytes!=null)
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113 {
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114 for (int i=0;i<bytes.length;i++)
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115 {
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116 byte c=bytes[i];
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117 switch(c)
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118 {
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119 case '%':
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120 buf.append("%25");
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121 continue;
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122 case '?':
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123 buf.append("%3F");
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124 continue;
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125 case ';':
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126 buf.append("%3B");
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127 continue;
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128 case '#':
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129 buf.append("%23");
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130 continue;
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131 case '"':
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132 buf.append("%22");
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133 continue;
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134 case '\'':
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135 buf.append("%27");
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136 continue;
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137 case '<':
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138 buf.append("%3C");
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139 continue;
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140 case '>':
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141 buf.append("%3E");
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142 continue;
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143 case ' ':
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144 buf.append("%20");
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145 continue;
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146 default:
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147 if (c<0)
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148 {
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149 buf.append('%');
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150 TypeUtil.toHex(c,buf);
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151 }
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152 else
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153 buf.append((char)c);
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154 continue;
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155 }
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156 }
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157
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158 }
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159 else
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160 {
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161 for (int i=0;i<path.length();i++)
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162 {
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163 char c=path.charAt(i);
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164 switch(c)
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165 {
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166 case '%':
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167 buf.append("%25");
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168 continue;
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169 case '?':
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170 buf.append("%3F");
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171 continue;
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172 case ';':
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173 buf.append("%3B");
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174 continue;
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175 case '#':
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176 buf.append("%23");
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177 continue;
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178 case '"':
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179 buf.append("%22");
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180 continue;
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181 case '\'':
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182 buf.append("%27");
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183 continue;
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184 case '<':
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185 buf.append("%3C");
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186 continue;
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187 case '>':
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188 buf.append("%3E");
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189 continue;
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190 case ' ':
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diff changeset
191 buf.append("%20");
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192 continue;
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193 default:
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194 buf.append(c);
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195 continue;
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196 }
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197 }
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198 }
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199 }
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200
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201 return buf;
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202 }
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203
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204 /* ------------------------------------------------------------ */
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205 /* Decode a URI path and strip parameters
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206 * @param path The path the encode
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207 * @param buf StringBuilder to encode path into
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208 */
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209 public static String decodePath(String path)
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210 {
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211 if (path==null)
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212 return null;
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213 // Array to hold all converted characters
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214 char[] chars=null;
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215 int n=0;
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216 // Array to hold a sequence of %encodings
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217 byte[] bytes=null;
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218 int b=0;
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219
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220 int len=path.length();
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221
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222 for (int i=0;i<len;i++)
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223 {
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224 char c = path.charAt(i);
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225
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226 if (c=='%' && (i+2)<len)
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227 {
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228 if (chars==null)
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229 {
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230 chars=new char[len];
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231 bytes=new byte[len];
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232 path.getChars(0,i,chars,0);
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233 }
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234 bytes[b++]=(byte)(0xff&TypeUtil.parseInt(path,i+1,2,16));
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235 i+=2;
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236 continue;
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237 }
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238 else if (c==';')
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239 {
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240 if (chars==null)
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241 {
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242 chars=new char[len];
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243 path.getChars(0,i,chars,0);
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244 n=i;
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245 }
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diff changeset
246 break;
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247 }
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248 else if (bytes==null)
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249 {
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250 n++;
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diff changeset
251 continue;
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diff changeset
252 }
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diff changeset
253
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diff changeset
254 // Do we have some bytes to convert?
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255 if (b>0)
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256 {
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257 // convert series of bytes and add to chars
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diff changeset
258 String s;
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diff changeset
259 try
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diff changeset
260 {
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diff changeset
261 s=new String(bytes,0,b,__CHARSET);
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262 }
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diff changeset
263 catch (UnsupportedEncodingException e)
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diff changeset
264 {
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265 s=new String(bytes,0,b);
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diff changeset
266 }
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267 s.getChars(0,s.length(),chars,n);
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268 n+=s.length();
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269 b=0;
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270 }
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271
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diff changeset
272 chars[n++]=c;
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273 }
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274
1013
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275 if (chars==null)
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276 return path;
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277
1013
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278 // if we have a remaining sequence of bytes
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279 if (b>0)
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280 {
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281 // convert series of bytes and add to chars
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diff changeset
282 String s;
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diff changeset
283 try
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diff changeset
284 {
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diff changeset
285 s=new String(bytes,0,b,__CHARSET);
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diff changeset
286 }
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diff changeset
287 catch (UnsupportedEncodingException e)
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diff changeset
288 {
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289 s=new String(bytes,0,b);
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diff changeset
290 }
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diff changeset
291 s.getChars(0,s.length(),chars,n);
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292 n+=s.length();
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diff changeset
293 }
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diff changeset
294
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diff changeset
295 return new String(chars,0,n);
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diff changeset
296 }
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diff changeset
297
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diff changeset
298 /* ------------------------------------------------------------ */
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diff changeset
299 /* Decode a URI path and strip parameters.
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300 * @param path The path the encode
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diff changeset
301 * @param buf StringBuilder to encode path into
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diff changeset
302 */
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diff changeset
303 public static String decodePath(byte[] buf, int offset, int length)
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304 {
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diff changeset
305 byte[] bytes=null;
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diff changeset
306 int n=0;
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diff changeset
307
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diff changeset
308 for (int i=0;i<length;i++)
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diff changeset
309 {
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diff changeset
310 byte b = buf[i + offset];
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diff changeset
311
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diff changeset
312 if (b=='%' && (i+2)<length)
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diff changeset
313 {
6939226e0ac4 simplify URIUtil
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diff changeset
314 b=(byte)(0xff&TypeUtil.parseInt(buf,i+offset+1,2,16));
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diff changeset
315 i+=2;
6939226e0ac4 simplify URIUtil
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diff changeset
316 }
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diff changeset
317 else if (b==';')
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diff changeset
318 {
6939226e0ac4 simplify URIUtil
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diff changeset
319 length=i;
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diff changeset
320 break;
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diff changeset
321 }
6939226e0ac4 simplify URIUtil
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diff changeset
322 else if (bytes==null)
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diff changeset
323 {
6939226e0ac4 simplify URIUtil
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diff changeset
324 n++;
6939226e0ac4 simplify URIUtil
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diff changeset
325 continue;
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diff changeset
326 }
6939226e0ac4 simplify URIUtil
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diff changeset
327
6939226e0ac4 simplify URIUtil
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diff changeset
328 if (bytes==null)
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diff changeset
329 {
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diff changeset
330 bytes=new byte[length];
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diff changeset
331 for (int j=0;j<n;j++)
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diff changeset
332 bytes[j]=buf[j + offset];
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diff changeset
333 }
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diff changeset
334
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diff changeset
335 bytes[n++]=b;
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diff changeset
336 }
802
3428c60d7cfc replace jetty jars with source
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337
1013
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diff changeset
338 if (bytes==null)
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diff changeset
339 return StringUtil.toString(buf,offset,length,__CHARSET);
6939226e0ac4 simplify URIUtil
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diff changeset
340 return StringUtil.toString(bytes,0,n,__CHARSET);
6939226e0ac4 simplify URIUtil
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diff changeset
341 }
802
3428c60d7cfc replace jetty jars with source
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342
1013
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diff changeset
343
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diff changeset
344 /* ------------------------------------------------------------ */
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diff changeset
345 /** Add two URI path segments.
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diff changeset
346 * Handles null and empty paths, path and query params (eg ?a=b or
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diff changeset
347 * ;JSESSIONID=xxx) and avoids duplicate '/'
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diff changeset
348 * @param p1 URI path segment (should be encoded)
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diff changeset
349 * @param p2 URI path segment (should be encoded)
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350 * @return Legally combined path segments.
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diff changeset
351 */
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diff changeset
352 public static String addPaths(String p1, String p2)
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diff changeset
353 {
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diff changeset
354 if (p1==null || p1.length()==0)
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diff changeset
355 {
6939226e0ac4 simplify URIUtil
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diff changeset
356 if (p1!=null && p2==null)
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diff changeset
357 return p1;
6939226e0ac4 simplify URIUtil
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diff changeset
358 return p2;
6939226e0ac4 simplify URIUtil
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diff changeset
359 }
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diff changeset
360 if (p2==null || p2.length()==0)
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diff changeset
361 return p1;
6939226e0ac4 simplify URIUtil
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diff changeset
362
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diff changeset
363 int split=p1.indexOf(';');
6939226e0ac4 simplify URIUtil
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diff changeset
364 if (split<0)
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
365 split=p1.indexOf('?');
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
366 if (split==0)
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
367 return p2+p1;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
368 if (split<0)
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
369 split=p1.length();
802
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
370
1013
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
371 StringBuilder buf = new StringBuilder(p1.length()+p2.length()+2);
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
372 buf.append(p1);
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
373
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
374 if (buf.charAt(split-1)=='/')
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
375 {
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
376 if (p2.startsWith("/"))
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
377 {
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
378 buf.deleteCharAt(split-1);
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
379 buf.insert(split-1,p2);
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
380 }
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
381 else
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
382 buf.insert(split,p2);
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
383 }
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
384 else
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
385 {
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
386 if (p2.startsWith("/"))
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
387 buf.insert(split,p2);
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
388 else
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
389 {
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
390 buf.insert(split,'/');
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
391 buf.insert(split+1,p2);
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
392 }
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
393 }
802
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
394
1013
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
395 return buf.toString();
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
396 }
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
397
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
398 /* ------------------------------------------------------------ */
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
399 /** Return the parent Path.
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
400 * Treat a URI like a directory path and return the parent directory.
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
401 */
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
402 public static String parentPath(String p)
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
403 {
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
404 if (p==null || "/".equals(p))
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
405 return null;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
406 int slash=p.lastIndexOf('/',p.length()-2);
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
407 if (slash>=0)
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
408 return p.substring(0,slash+1);
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
409 return null;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
410 }
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
411
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
412 /* ------------------------------------------------------------ */
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
413 /** Convert a path to a cananonical form.
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
414 * All instances of "." and ".." are factored out. Null is returned
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
415 * if the path tries to .. above its root.
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
416 * @param path
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
417 * @return path or null.
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
418 */
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
419 public static String canonicalPath(String path)
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
420 {
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
421 if (path==null || path.length()==0)
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
422 return path;
802
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
423
1013
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
424 int end=path.length();
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
425 int start = path.lastIndexOf('/', end);
802
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
426
1013
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
427 search:
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
428 while (end>0)
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
429 {
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
430 switch(end-start)
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
431 {
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
432 case 2: // possible single dot
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
433 if (path.charAt(start+1)!='.')
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
434 break;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
435 break search;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
436 case 3: // possible double dot
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
437 if (path.charAt(start+1)!='.' || path.charAt(start+2)!='.')
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
438 break;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
439 break search;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
440 }
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
441
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
442 end=start;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
443 start=path.lastIndexOf('/',end-1);
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
444 }
802
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
445
1013
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
446 // If we have checked the entire string
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
447 if (start>=end)
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
448 return path;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
449
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
450 StringBuilder buf = new StringBuilder(path);
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
451 int delStart=-1;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
452 int delEnd=-1;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
453 int skip=0;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
454
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
455 while (end>0)
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
456 {
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
457 switch(end-start)
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
458 {
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
459 case 2: // possible single dot
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
460 if (buf.charAt(start+1)!='.')
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
461 {
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
462 if (skip>0 && --skip==0)
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
463 {
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
464 delStart=start>=0?start:0;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
465 if(delStart>0 && delEnd==buf.length() && buf.charAt(delEnd-1)=='.')
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
466 delStart++;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
467 }
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
468 break;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
469 }
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
470
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
471 if(start<0 && buf.length()>2 && buf.charAt(1)=='/' && buf.charAt(2)=='/')
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
472 break;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
473
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
474 if(delEnd<0)
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
475 delEnd=end;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
476 delStart=start;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
477 if (delStart<0 || delStart==0&&buf.charAt(delStart)=='/')
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
478 {
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
479 delStart++;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
480 if (delEnd<buf.length() && buf.charAt(delEnd)=='/')
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
481 delEnd++;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
482 break;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
483 }
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
484 if (end==buf.length())
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
485 delStart++;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
486
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
487 end=start--;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
488 while (start>=0 && buf.charAt(start)!='/')
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
489 start--;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
490 continue;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
491
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
492 case 3: // possible double dot
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
493 if (buf.charAt(start+1)!='.' || buf.charAt(start+2)!='.')
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
494 {
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
495 if (skip>0 && --skip==0)
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
496 { delStart=start>=0?start:0;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
497 if(delStart>0 && delEnd==buf.length() && buf.charAt(delEnd-1)=='.')
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
498 delStart++;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
499 }
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
500 break;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
501 }
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
502
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
503 delStart=start;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
504 if (delEnd<0)
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
505 delEnd=end;
802
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
506
1013
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
507 skip++;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
508 end=start--;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
509 while (start>=0 && buf.charAt(start)!='/')
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
510 start--;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
511 continue;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
512
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
513 default:
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
514 if (skip>0 && --skip==0)
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
515 {
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
516 delStart=start>=0?start:0;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
517 if(delEnd==buf.length() && buf.charAt(delEnd-1)=='.')
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
518 delStart++;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
519 }
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
520 }
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
521
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
522 // Do the delete
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
523 if (skip<=0 && delStart>=0 && delEnd>=delStart)
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
524 {
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
525 buf.delete(delStart,delEnd);
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
526 delStart=delEnd=-1;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
527 if (skip>0)
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
528 delEnd=end;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
529 }
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
530
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
531 end=start--;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
532 while (start>=0 && buf.charAt(start)!='/')
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
533 start--;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
534 }
802
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
535
1013
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
536 // Too many ..
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
537 if (skip>0)
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
538 return null;
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
539
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
540 // Do the delete
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
541 if (delEnd>=0)
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
542 buf.delete(delStart,delEnd);
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
543
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
544 return buf.toString();
6939226e0ac4 simplify URIUtil
Franklin Schmidt <fschmidt@gmail.com>
parents: 820
diff changeset
545 }
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546
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547 /* ------------------------------------------------------------ */
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548 /**
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549 * @param uri URI
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550 * @return True if the uri has a scheme
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551 */
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552 public static boolean hasScheme(String uri)
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553 {
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554 for (int i=0;i<uri.length();i++)
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555 {
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556 char c=uri.charAt(i);
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557 if (c==':')
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558 return true;
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559 if (!(c>='a'&&c<='z' ||
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560 c>='A'&&c<='Z' ||
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561 (i>0 &&(c>='0'&&c<='9' ||
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562 c=='.' ||
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563 c=='+' ||
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564 c=='-'))
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565 ))
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566 break;
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567 }
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568 return false;
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569 }
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570
802
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571 }
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572
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573
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574