Mercurial Hosting > luan
annotate src/org/eclipse/jetty/util/resource/Resource.java @ 821:292f2e31ab41
remove ErrorHandler.ErrorPageMapper
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Wed, 14 Sep 2016 00:48:03 -0600 |
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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.resource; |
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20 |
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21 import java.io.File; |
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22 import java.io.FileOutputStream; |
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23 import java.io.IOException; |
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24 import java.io.InputStream; |
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25 import java.io.OutputStream; |
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26 import java.net.MalformedURLException; |
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27 import java.net.URI; |
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28 import java.net.URL; |
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29 import java.net.URLConnection; |
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30 import java.text.DateFormat; |
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31 import java.util.Arrays; |
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32 import java.util.Date; |
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33 |
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34 import org.eclipse.jetty.util.B64Code; |
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35 import org.eclipse.jetty.util.IO; |
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36 import org.eclipse.jetty.util.Loader; |
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37 import org.eclipse.jetty.util.StringUtil; |
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38 import org.eclipse.jetty.util.URIUtil; |
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39 import org.slf4j.Logger; |
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40 import org.slf4j.LoggerFactory; |
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41 |
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42 |
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43 /* ------------------------------------------------------------ */ |
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44 /** |
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45 * Abstract resource class. |
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46 */ |
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47 public abstract class Resource implements ResourceFactory |
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48 { |
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49 private static final Logger LOG = LoggerFactory.getLogger(Resource.class); |
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50 public static boolean __defaultUseCaches = true; |
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51 volatile Object _associate; |
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52 |
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53 /* ------------------------------------------------------------ */ |
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54 /** |
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55 * Change the default setting for url connection caches. |
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56 * Subsequent URLConnections will use this default. |
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57 * @param useCaches |
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58 */ |
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59 public static void setDefaultUseCaches (boolean useCaches) |
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60 { |
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61 __defaultUseCaches=useCaches; |
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62 } |
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63 |
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64 /* ------------------------------------------------------------ */ |
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65 public static boolean getDefaultUseCaches () |
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66 { |
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67 return __defaultUseCaches; |
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68 } |
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69 |
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70 /* ------------------------------------------------------------ */ |
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71 /** Construct a resource from a uri. |
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72 * @param uri A URI. |
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73 * @return A Resource object. |
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74 * @throws IOException Problem accessing URI |
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75 */ |
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76 public static Resource newResource(URI uri) |
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77 throws IOException |
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78 { |
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79 return newResource(uri.toURL()); |
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80 } |
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81 |
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82 /* ------------------------------------------------------------ */ |
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83 /** Construct a resource from a url. |
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84 * @param url A URL. |
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85 * @return A Resource object. |
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86 * @throws IOException Problem accessing URL |
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87 */ |
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88 public static Resource newResource(URL url) |
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89 throws IOException |
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90 { |
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91 return newResource(url, __defaultUseCaches); |
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92 } |
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93 |
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94 /* ------------------------------------------------------------ */ |
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95 /** |
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96 * Construct a resource from a url. |
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97 * @param url the url for which to make the resource |
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98 * @param useCaches true enables URLConnection caching if applicable to the type of resource |
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99 * @return |
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100 */ |
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101 static Resource newResource(URL url, boolean useCaches) |
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102 { |
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103 if (url==null) |
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104 return null; |
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105 |
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106 String url_string=url.toExternalForm(); |
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107 if( url_string.startsWith( "file:")) |
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108 { |
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109 try |
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110 { |
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111 FileResource fileResource= new FileResource(url); |
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112 return fileResource; |
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113 } |
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114 catch(Exception e) |
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115 { |
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116 LOG.debug("EXCEPTION",e); |
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117 return new BadResource(url,e.toString()); |
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118 } |
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119 } |
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120 else if( url_string.startsWith( "jar:file:")) |
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121 { |
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122 return new JarFileResource(url, useCaches); |
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123 } |
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124 else if( url_string.startsWith( "jar:")) |
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125 { |
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126 return new JarResource(url, useCaches); |
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127 } |
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128 |
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129 return new URLResource(url,null,useCaches); |
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130 } |
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131 |
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132 |
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133 |
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134 /* ------------------------------------------------------------ */ |
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135 /** Construct a resource from a string. |
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136 * @param resource A URL or filename. |
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137 * @return A Resource object. |
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138 */ |
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139 public static Resource newResource(String resource) |
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140 throws MalformedURLException, IOException |
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141 { |
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142 return newResource(resource, __defaultUseCaches); |
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143 } |
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144 |
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145 /* ------------------------------------------------------------ */ |
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146 /** Construct a resource from a string. |
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147 * @param resource A URL or filename. |
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148 * @param useCaches controls URLConnection caching |
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149 * @return A Resource object. |
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150 */ |
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151 public static Resource newResource (String resource, boolean useCaches) |
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152 throws MalformedURLException, IOException |
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153 { |
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154 URL url=null; |
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155 try |
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156 { |
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157 // Try to format as a URL? |
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158 url = new URL(resource); |
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159 } |
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160 catch(MalformedURLException e) |
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161 { |
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162 if(!resource.startsWith("ftp:") && |
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163 !resource.startsWith("file:") && |
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164 !resource.startsWith("jar:")) |
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165 { |
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166 try |
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167 { |
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168 // It's a file. |
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169 if (resource.startsWith("./")) |
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170 resource=resource.substring(2); |
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171 |
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172 File file=new File(resource).getCanonicalFile(); |
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173 url=Resource.toURL(file); |
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174 |
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175 URLConnection connection=url.openConnection(); |
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176 connection.setUseCaches(useCaches); |
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177 return new FileResource(url,connection,file); |
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178 } |
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179 catch(Exception e2) |
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180 { |
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181 LOG.debug("EXCEPTION",e2); |
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182 throw e; |
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183 } |
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184 } |
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185 else |
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186 { |
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187 LOG.warn("Bad Resource: "+resource); |
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188 throw e; |
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189 } |
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190 } |
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191 |
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192 return newResource(url); |
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193 } |
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194 |
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195 /* ------------------------------------------------------------ */ |
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196 public static Resource newResource (File file) |
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197 throws MalformedURLException, IOException |
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198 { |
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199 file = file.getCanonicalFile(); |
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200 URL url = Resource.toURL(file); |
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201 |
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202 URLConnection connection = url.openConnection(); |
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203 FileResource fileResource = new FileResource(url, connection, file); |
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204 return fileResource; |
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205 } |
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206 |
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207 /* ------------------------------------------------------------ */ |
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208 /** Construct a system resource from a string. |
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209 * The resource is tried as classloader resource before being |
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210 * treated as a normal resource. |
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211 * @param resource Resource as string representation |
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212 * @return The new Resource |
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213 * @throws IOException Problem accessing resource. |
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214 */ |
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215 public static Resource newSystemResource(String resource) |
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216 throws IOException |
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217 { |
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218 URL url=null; |
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219 // Try to format as a URL? |
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220 ClassLoader loader=Thread.currentThread().getContextClassLoader(); |
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221 if (loader!=null) |
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222 { |
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223 try |
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224 { |
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225 url = loader.getResource(resource); |
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226 if (url == null && resource.startsWith("/")) |
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227 url = loader.getResource(resource.substring(1)); |
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228 } |
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229 catch (IllegalArgumentException e) |
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230 { |
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231 // Catches scenario where a bad Windows path like "C:\dev" is |
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232 // improperly escaped, which various downstream classloaders |
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233 // tend to have a problem with |
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234 url = null; |
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235 } |
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236 } |
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237 if (url==null) |
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238 { |
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239 loader=Resource.class.getClassLoader(); |
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240 if (loader!=null) |
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241 { |
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242 url=loader.getResource(resource); |
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243 if (url==null && resource.startsWith("/")) |
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244 url=loader.getResource(resource.substring(1)); |
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245 } |
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246 } |
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247 |
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248 if (url==null) |
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249 { |
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250 url=ClassLoader.getSystemResource(resource); |
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251 if (url==null && resource.startsWith("/")) |
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252 url=ClassLoader.getSystemResource(resource.substring(1)); |
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253 } |
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254 |
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255 if (url==null) |
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256 return null; |
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257 |
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258 return newResource(url); |
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259 } |
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260 |
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261 /* ------------------------------------------------------------ */ |
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262 /** Find a classpath resource. |
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263 */ |
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264 public static Resource newClassPathResource(String resource) |
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265 { |
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266 return newClassPathResource(resource,true,false); |
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267 } |
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268 |
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269 /* ------------------------------------------------------------ */ |
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270 /** Find a classpath resource. |
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271 * The {@link java.lang.Class#getResource(String)} method is used to lookup the resource. If it is not |
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272 * found, then the {@link Loader#getResource(Class, String, boolean)} method is used. |
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273 * If it is still not found, then {@link ClassLoader#getSystemResource(String)} is used. |
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274 * Unlike {@link ClassLoader#getSystemResource(String)} this method does not check for normal resources. |
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275 * @param name The relative name of the resource |
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276 * @param useCaches True if URL caches are to be used. |
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277 * @param checkParents True if forced searching of parent Classloaders is performed to work around |
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278 * loaders with inverted priorities |
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279 * @return Resource or null |
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280 */ |
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281 public static Resource newClassPathResource(String name,boolean useCaches,boolean checkParents) |
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282 { |
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283 URL url=Resource.class.getResource(name); |
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284 |
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285 if (url==null) |
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286 url=Loader.getResource(Resource.class,name,checkParents); |
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287 if (url==null) |
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288 return null; |
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289 return newResource(url,useCaches); |
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290 } |
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291 |
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292 /* ------------------------------------------------------------ */ |
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293 public static boolean isContainedIn (Resource r, Resource containingResource) throws MalformedURLException |
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294 { |
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295 return r.isContainedIn(containingResource); |
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296 } |
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297 |
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298 /* ------------------------------------------------------------ */ |
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299 @Override |
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300 protected void finalize() |
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301 { |
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302 release(); |
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303 } |
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304 |
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305 /* ------------------------------------------------------------ */ |
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306 public abstract boolean isContainedIn (Resource r) throws MalformedURLException; |
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307 |
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308 |
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309 /* ------------------------------------------------------------ */ |
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310 /** Release any temporary resources held by the resource. |
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311 */ |
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312 public abstract void release(); |
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313 |
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314 |
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315 /* ------------------------------------------------------------ */ |
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316 /** |
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317 * Returns true if the respresened resource exists. |
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318 */ |
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319 public abstract boolean exists(); |
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320 |
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321 |
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322 /* ------------------------------------------------------------ */ |
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323 /** |
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324 * Returns true if the respresenetd resource is a container/directory. |
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325 * If the resource is not a file, resources ending with "/" are |
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326 * considered directories. |
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327 */ |
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328 public abstract boolean isDirectory(); |
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329 |
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330 /* ------------------------------------------------------------ */ |
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331 /** |
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332 * Returns the last modified time |
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333 */ |
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334 public abstract long lastModified(); |
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335 |
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336 |
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337 /* ------------------------------------------------------------ */ |
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338 /** |
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339 * Return the length of the resource |
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340 */ |
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341 public abstract long length(); |
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342 |
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343 |
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344 /* ------------------------------------------------------------ */ |
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345 /** |
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346 * Returns an URL representing the given resource |
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347 */ |
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348 public abstract URL getURL(); |
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349 |
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350 /* ------------------------------------------------------------ */ |
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351 /** |
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352 * Returns an URI representing the given resource |
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353 */ |
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354 public URI getURI() |
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355 { |
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356 try |
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357 { |
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358 return getURL().toURI(); |
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359 } |
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360 catch(Exception e) |
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361 { |
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362 throw new RuntimeException(e); |
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363 } |
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364 } |
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365 |
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366 |
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367 /* ------------------------------------------------------------ */ |
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368 /** |
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369 * Returns an File representing the given resource or NULL if this |
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370 * is not possible. |
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371 */ |
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372 public abstract File getFile() |
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373 throws IOException; |
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374 |
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375 |
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376 /* ------------------------------------------------------------ */ |
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377 /** |
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378 * Returns the name of the resource |
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379 */ |
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380 public abstract String getName(); |
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381 |
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382 |
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383 /* ------------------------------------------------------------ */ |
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384 /** |
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385 * Returns an input stream to the resource |
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386 */ |
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387 public abstract InputStream getInputStream() |
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388 throws java.io.IOException; |
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389 |
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390 /* ------------------------------------------------------------ */ |
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391 /** |
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392 * Returns an output stream to the resource |
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393 */ |
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394 public abstract OutputStream getOutputStream() |
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395 throws java.io.IOException, SecurityException; |
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396 |
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397 /* ------------------------------------------------------------ */ |
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398 /** |
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399 * Deletes the given resource |
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400 */ |
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401 public abstract boolean delete() |
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402 throws SecurityException; |
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403 |
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404 /* ------------------------------------------------------------ */ |
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405 /** |
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406 * Rename the given resource |
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407 */ |
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408 public abstract boolean renameTo( Resource dest) |
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409 throws SecurityException; |
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410 |
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411 /* ------------------------------------------------------------ */ |
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412 /** |
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413 * Returns a list of resource names contained in the given resource |
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414 * The resource names are not URL encoded. |
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415 */ |
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416 public abstract String[] list(); |
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417 |
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418 /* ------------------------------------------------------------ */ |
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419 /** |
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420 * Returns the resource contained inside the current resource with the |
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421 * given name. |
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422 * @param path The path segment to add, which should be encoded by the |
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423 * encode method. |
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424 */ |
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425 public abstract Resource addPath(String path) |
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426 throws IOException,MalformedURLException; |
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427 |
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428 /* ------------------------------------------------------------ */ |
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429 /** Get a resource from withing this resource. |
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430 * <p> |
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431 * This method is essentially an alias for {@link #addPath(String)}, but without checked exceptions. |
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432 * This method satisfied the {@link ResourceFactory} interface. |
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433 * @see org.eclipse.jetty.util.resource.ResourceFactory#getResource(java.lang.String) |
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434 */ |
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435 public Resource getResource(String path) |
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436 { |
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437 try |
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438 { |
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439 return addPath(path); |
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440 } |
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441 catch(Exception e) |
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442 { |
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443 LOG.debug("",e); |
802
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444 return null; |
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445 } |
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446 } |
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447 |
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448 /* ------------------------------------------------------------ */ |
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449 /** Encode according to this resource type. |
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450 * The default implementation calls URI.encodePath(uri) |
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451 * @param uri |
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452 * @return String encoded for this resource type. |
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453 */ |
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454 public String encode(String uri) |
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455 { |
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456 return URIUtil.encodePath(uri); |
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457 } |
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458 |
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459 /* ------------------------------------------------------------ */ |
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460 public Object getAssociate() |
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461 { |
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462 return _associate; |
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463 } |
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464 |
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465 /* ------------------------------------------------------------ */ |
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466 public void setAssociate(Object o) |
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467 { |
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468 _associate=o; |
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469 } |
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470 |
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471 /* ------------------------------------------------------------ */ |
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472 /** |
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473 * @return The canonical Alias of this resource or null if none. |
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474 */ |
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475 public URL getAlias() |
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476 { |
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477 return null; |
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478 } |
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479 |
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480 /* ------------------------------------------------------------ */ |
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481 /** Get the resource list as a HTML directory listing. |
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482 * @param base The base URL |
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483 * @param parent True if the parent directory should be included |
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484 * @return String of HTML |
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485 */ |
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486 public String getListHTML(String base,boolean parent) |
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487 throws IOException |
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488 { |
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489 base=URIUtil.canonicalPath(base); |
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490 if (base==null || !isDirectory()) |
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491 return null; |
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|
492 |
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493 String[] ls = list(); |
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494 if (ls==null) |
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495 return null; |
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496 Arrays.sort(ls); |
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497 |
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498 String decodedBase = URIUtil.decodePath(base); |
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499 String title = "Directory: "+deTag(decodedBase); |
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|
500 |
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501 StringBuilder buf=new StringBuilder(4096); |
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502 buf.append("<HTML><HEAD>"); |
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503 buf.append("<LINK HREF=\"").append("jetty-dir.css").append("\" REL=\"stylesheet\" TYPE=\"text/css\"/><TITLE>"); |
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504 buf.append(title); |
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505 buf.append("</TITLE></HEAD><BODY>\n<H1>"); |
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506 buf.append(title); |
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507 buf.append("</H1>\n<TABLE BORDER=0>\n"); |
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508 |
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509 if (parent) |
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510 { |
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511 buf.append("<TR><TD><A HREF=\""); |
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512 buf.append(URIUtil.addPaths(base,"../")); |
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513 buf.append("\">Parent Directory</A></TD><TD></TD><TD></TD></TR>\n"); |
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|
514 } |
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515 |
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516 String encodedBase = hrefEncodeURI(base); |
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517 |
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|
518 DateFormat dfmt=DateFormat.getDateTimeInstance(DateFormat.MEDIUM, |
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519 DateFormat.MEDIUM); |
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520 for (int i=0 ; i< ls.length ; i++) |
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521 { |
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522 Resource item = addPath(ls[i]); |
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|
523 |
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|
524 buf.append("\n<TR><TD><A HREF=\""); |
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parents:
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|
525 String path=URIUtil.addPaths(encodedBase,URIUtil.encodePath(ls[i])); |
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|
526 |
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parents:
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527 buf.append(path); |
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|
528 |
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parents:
diff
changeset
|
529 if (item.isDirectory() && !path.endsWith("/")) |
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parents:
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|
530 buf.append(URIUtil.SLASH); |
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parents:
diff
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|
531 |
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parents:
diff
changeset
|
532 // URIUtil.encodePath(buf,path); |
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parents:
diff
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|
533 buf.append("\">"); |
3428c60d7cfc
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parents:
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|
534 buf.append(deTag(ls[i])); |
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parents:
diff
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|
535 buf.append(" "); |
3428c60d7cfc
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parents:
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changeset
|
536 buf.append("</A></TD><TD ALIGN=right>"); |
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parents:
diff
changeset
|
537 buf.append(item.length()); |
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
538 buf.append(" bytes </TD><TD>"); |
3428c60d7cfc
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parents:
diff
changeset
|
539 buf.append(dfmt.format(new Date(item.lastModified()))); |
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
540 buf.append("</TD></TR>"); |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
541 } |
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
542 buf.append("</TABLE>\n"); |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
543 buf.append("</BODY></HTML>\n"); |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
544 |
3428c60d7cfc
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parents:
diff
changeset
|
545 return buf.toString(); |
3428c60d7cfc
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parents:
diff
changeset
|
546 } |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
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diff
changeset
|
547 |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
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|
548 /** |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
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|
549 * Encode any characters that could break the URI string in an HREF. |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
550 * Such as <a href="/path/to;<script>Window.alert("XSS"+'%20'+"here");</script>">Link</a> |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
551 * |
3428c60d7cfc
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parents:
diff
changeset
|
552 * The above example would parse incorrectly on various browsers as the "<" or '"' characters |
3428c60d7cfc
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parents:
diff
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|
553 * would end the href attribute value string prematurely. |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
554 * |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
555 * @param raw the raw text to encode. |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
556 * @return the defanged text. |
3428c60d7cfc
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parents:
diff
changeset
|
557 */ |
3428c60d7cfc
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parents:
diff
changeset
|
558 private static String hrefEncodeURI(String raw) |
3428c60d7cfc
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parents:
diff
changeset
|
559 { |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
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changeset
|
560 StringBuffer buf = null; |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
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diff
changeset
|
561 |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
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|
562 loop: |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
563 for (int i=0;i<raw.length();i++) |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
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|
564 { |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
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|
565 char c=raw.charAt(i); |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
566 switch(c) |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
567 { |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
568 case '\'': |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
569 case '"': |
3428c60d7cfc
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parents:
diff
changeset
|
570 case '<': |
3428c60d7cfc
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parents:
diff
changeset
|
571 case '>': |
3428c60d7cfc
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parents:
diff
changeset
|
572 buf=new StringBuffer(raw.length()<<1); |
3428c60d7cfc
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parents:
diff
changeset
|
573 break loop; |
3428c60d7cfc
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parents:
diff
changeset
|
574 } |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
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|
575 } |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
576 if (buf==null) |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
577 return raw; |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
578 |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
579 for (int i=0;i<raw.length();i++) |
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replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
580 { |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
581 char c=raw.charAt(i); |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
582 switch(c) |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
583 { |
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584 case '"': |
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585 buf.append("%22"); |
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586 continue; |
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587 case '\'': |
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588 buf.append("%27"); |
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589 continue; |
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590 case '<': |
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591 buf.append("%3C"); |
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592 continue; |
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593 case '>': |
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594 buf.append("%3E"); |
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595 continue; |
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596 default: |
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597 buf.append(c); |
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598 continue; |
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599 } |
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600 } |
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601 |
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602 return buf.toString(); |
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603 } |
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|
604 |
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605 private static String deTag(String raw) |
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parents:
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606 { |
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607 return StringUtil.replace( StringUtil.replace(raw,"<","<"), ">", ">"); |
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parents:
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|
608 } |
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diff
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|
609 |
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|
610 /* ------------------------------------------------------------ */ |
3428c60d7cfc
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611 /** |
3428c60d7cfc
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parents:
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612 * @param out |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
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613 * @param start First byte to write |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
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changeset
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614 * @param count Bytes to write or -1 for all of them. |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
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|
615 */ |
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Franklin Schmidt <fschmidt@gmail.com>
parents:
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616 public void writeTo(OutputStream out,long start,long count) |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
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617 throws IOException |
3428c60d7cfc
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parents:
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|
618 { |
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
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619 InputStream in = getInputStream(); |
3428c60d7cfc
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parents:
diff
changeset
|
620 try |
3428c60d7cfc
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parents:
diff
changeset
|
621 { |
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parents:
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|
622 in.skip(start); |
3428c60d7cfc
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parents:
diff
changeset
|
623 if (count<0) |
3428c60d7cfc
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parents:
diff
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|
624 IO.copy(in,out); |
3428c60d7cfc
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parents:
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|
625 else |
3428c60d7cfc
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parents:
diff
changeset
|
626 IO.copy(in,out,count); |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
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|
627 } |
3428c60d7cfc
replace jetty jars with source
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parents:
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|
628 finally |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
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|
629 { |
3428c60d7cfc
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parents:
diff
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|
630 in.close(); |
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parents:
diff
changeset
|
631 } |
3428c60d7cfc
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parents:
diff
changeset
|
632 } |
3428c60d7cfc
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parents:
diff
changeset
|
633 |
3428c60d7cfc
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parents:
diff
changeset
|
634 /* ------------------------------------------------------------ */ |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
635 public void copyTo(File destination) |
3428c60d7cfc
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parents:
diff
changeset
|
636 throws IOException |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
637 { |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
638 if (destination.exists()) |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
639 throw new IllegalArgumentException(destination+" exists"); |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
640 writeTo(new FileOutputStream(destination),0,-1); |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
641 } |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
642 |
3428c60d7cfc
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parents:
diff
changeset
|
643 /* ------------------------------------------------------------ */ |
3428c60d7cfc
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parents:
diff
changeset
|
644 public String getWeakETag() |
3428c60d7cfc
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parents:
diff
changeset
|
645 { |
3428c60d7cfc
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parents:
diff
changeset
|
646 try |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
647 { |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
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changeset
|
648 StringBuilder b = new StringBuilder(32); |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
649 b.append("W/\""); |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
650 |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
651 String name=getName(); |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
652 int length=name.length(); |
3428c60d7cfc
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parents:
diff
changeset
|
653 long lhash=0; |
3428c60d7cfc
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parents:
diff
changeset
|
654 for (int i=0; i<length;i++) |
3428c60d7cfc
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parents:
diff
changeset
|
655 lhash=31*lhash+name.charAt(i); |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
656 |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
657 B64Code.encode(lastModified()^lhash,b); |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
658 B64Code.encode(length()^lhash,b); |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
659 b.append('"'); |
3428c60d7cfc
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parents:
diff
changeset
|
660 return b.toString(); |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
661 } |
3428c60d7cfc
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parents:
diff
changeset
|
662 catch (IOException e) |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
663 { |
3428c60d7cfc
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parents:
diff
changeset
|
664 throw new RuntimeException(e); |
3428c60d7cfc
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parents:
diff
changeset
|
665 } |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
666 } |
3428c60d7cfc
replace jetty jars with source
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parents:
diff
changeset
|
667 |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
668 /* ------------------------------------------------------------ */ |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
669 /** Generate a properly encoded URL from a {@link File} instance. |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
670 * @param file Target file. |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
671 * @return URL of the target file. |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
672 * @throws MalformedURLException |
3428c60d7cfc
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parents:
diff
changeset
|
673 */ |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
674 public static URL toURL(File file) throws MalformedURLException |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
675 { |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
676 return file.toURI().toURL(); |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
677 } |
3428c60d7cfc
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parents:
diff
changeset
|
678 } |