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<FONT color="green">001</FONT> /*<a name="line.1"></a>
<FONT color="green">002</FONT> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a>
<FONT color="green">003</FONT> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a>
<FONT color="green">004</FONT> * distributed with this work for additional information<a name="line.4"></a>
<FONT color="green">005</FONT> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a>
<FONT color="green">006</FONT> * to you under the Apache License, Version 2.0 (the "License");<a name="line.6"></a>
<FONT color="green">007</FONT> * you may not use this file except in compliance with the License.<a name="line.7"></a>
<FONT color="green">008</FONT> * You may obtain a copy of the License at<a name="line.8"></a>
<FONT color="green">009</FONT> *<a name="line.9"></a>
<FONT color="green">010</FONT> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a>
<FONT color="green">011</FONT> *<a name="line.11"></a>
<FONT color="green">012</FONT> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a>
<FONT color="green">013</FONT> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a>
<FONT color="green">014</FONT> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a>
<FONT color="green">015</FONT> * See the License for the specific language governing permissions and<a name="line.15"></a>
<FONT color="green">016</FONT> * limitations under the License.<a name="line.16"></a>
<FONT color="green">017</FONT> */<a name="line.17"></a>
<FONT color="green">018</FONT> /*<a name="line.18"></a>
<FONT color="green">019</FONT> * $Id: SecuritySupport.java 1225414 2011-12-29 02:38:30Z mrglavas $<a name="line.19"></a>
<FONT color="green">020</FONT> */<a name="line.20"></a>
<FONT color="green">021</FONT> <a name="line.21"></a>
<FONT color="green">022</FONT> package org.apache.xml.serializer;<a name="line.22"></a>
<FONT color="green">023</FONT> <a name="line.23"></a>
<FONT color="green">024</FONT> import java.io.File;<a name="line.24"></a>
<FONT color="green">025</FONT> import java.io.FileInputStream;<a name="line.25"></a>
<FONT color="green">026</FONT> import java.io.FileNotFoundException;<a name="line.26"></a>
<FONT color="green">027</FONT> import java.io.InputStream;<a name="line.27"></a>
<FONT color="green">028</FONT> import java.security.AccessController;<a name="line.28"></a>
<FONT color="green">029</FONT> import java.security.PrivilegedAction;<a name="line.29"></a>
<FONT color="green">030</FONT> import java.security.PrivilegedActionException;<a name="line.30"></a>
<FONT color="green">031</FONT> import java.security.PrivilegedExceptionAction;<a name="line.31"></a>
<FONT color="green">032</FONT> <a name="line.32"></a>
<FONT color="green">033</FONT> /**<a name="line.33"></a>
<FONT color="green">034</FONT> * This class is duplicated for each Xalan-Java subpackage so keep it in sync.<a name="line.34"></a>
<FONT color="green">035</FONT> * It is package private and therefore is not exposed as part of the Xalan-Java<a name="line.35"></a>
<FONT color="green">036</FONT> * API.<a name="line.36"></a>
<FONT color="green">037</FONT> *<a name="line.37"></a>
<FONT color="green">038</FONT> * Security related methods that only work on J2SE 1.2 and newer.<a name="line.38"></a>
<FONT color="green">039</FONT> */<a name="line.39"></a>
<FONT color="green">040</FONT> final class SecuritySupport {<a name="line.40"></a>
<FONT color="green">041</FONT> <a name="line.41"></a>
<FONT color="green">042</FONT> static ClassLoader getContextClassLoader() {<a name="line.42"></a>
<FONT color="green">043</FONT> return (ClassLoader)<a name="line.43"></a>
<FONT color="green">044</FONT> AccessController.doPrivileged(new PrivilegedAction() {<a name="line.44"></a>
<FONT color="green">045</FONT> public Object run() {<a name="line.45"></a>
<FONT color="green">046</FONT> ClassLoader cl = null;<a name="line.46"></a>
<FONT color="green">047</FONT> try {<a name="line.47"></a>
<FONT color="green">048</FONT> cl = Thread.currentThread().getContextClassLoader();<a name="line.48"></a>
<FONT color="green">049</FONT> } catch (SecurityException ex) { }<a name="line.49"></a>
<FONT color="green">050</FONT> return cl;<a name="line.50"></a>
<FONT color="green">051</FONT> }<a name="line.51"></a>
<FONT color="green">052</FONT> });<a name="line.52"></a>
<FONT color="green">053</FONT> }<a name="line.53"></a>
<FONT color="green">054</FONT> <a name="line.54"></a>
<FONT color="green">055</FONT> static ClassLoader getSystemClassLoader() {<a name="line.55"></a>
<FONT color="green">056</FONT> return (ClassLoader)<a name="line.56"></a>
<FONT color="green">057</FONT> AccessController.doPrivileged(new PrivilegedAction() {<a name="line.57"></a>
<FONT color="green">058</FONT> public Object run() {<a name="line.58"></a>
<FONT color="green">059</FONT> ClassLoader cl = null;<a name="line.59"></a>
<FONT color="green">060</FONT> try {<a name="line.60"></a>
<FONT color="green">061</FONT> cl = ClassLoader.getSystemClassLoader();<a name="line.61"></a>
<FONT color="green">062</FONT> } catch (SecurityException ex) {}<a name="line.62"></a>
<FONT color="green">063</FONT> return cl;<a name="line.63"></a>
<FONT color="green">064</FONT> }<a name="line.64"></a>
<FONT color="green">065</FONT> });<a name="line.65"></a>
<FONT color="green">066</FONT> }<a name="line.66"></a>
<FONT color="green">067</FONT> <a name="line.67"></a>
<FONT color="green">068</FONT> static ClassLoader getParentClassLoader(final ClassLoader cl) {<a name="line.68"></a>
<FONT color="green">069</FONT> return (ClassLoader)<a name="line.69"></a>
<FONT color="green">070</FONT> AccessController.doPrivileged(new PrivilegedAction() {<a name="line.70"></a>
<FONT color="green">071</FONT> public Object run() {<a name="line.71"></a>
<FONT color="green">072</FONT> ClassLoader parent = null;<a name="line.72"></a>
<FONT color="green">073</FONT> try {<a name="line.73"></a>
<FONT color="green">074</FONT> parent = cl.getParent();<a name="line.74"></a>
<FONT color="green">075</FONT> } catch (SecurityException ex) {}<a name="line.75"></a>
<FONT color="green">076</FONT> <a name="line.76"></a>
<FONT color="green">077</FONT> // eliminate loops in case of the boot<a name="line.77"></a>
<FONT color="green">078</FONT> // ClassLoader returning itself as a parent<a name="line.78"></a>
<FONT color="green">079</FONT> return (parent == cl) ? null : parent;<a name="line.79"></a>
<FONT color="green">080</FONT> }<a name="line.80"></a>
<FONT color="green">081</FONT> });<a name="line.81"></a>
<FONT color="green">082</FONT> }<a name="line.82"></a>
<FONT color="green">083</FONT> <a name="line.83"></a>
<FONT color="green">084</FONT> static String getSystemProperty(final String propName) {<a name="line.84"></a>
<FONT color="green">085</FONT> return (String)<a name="line.85"></a>
<FONT color="green">086</FONT> AccessController.doPrivileged(new PrivilegedAction() {<a name="line.86"></a>
<FONT color="green">087</FONT> public Object run() {<a name="line.87"></a>
<FONT color="green">088</FONT> return System.getProperty(propName);<a name="line.88"></a>
<FONT color="green">089</FONT> }<a name="line.89"></a>
<FONT color="green">090</FONT> });<a name="line.90"></a>
<FONT color="green">091</FONT> }<a name="line.91"></a>
<FONT color="green">092</FONT> <a name="line.92"></a>
<FONT color="green">093</FONT> static FileInputStream getFileInputStream(final File file)<a name="line.93"></a>
<FONT color="green">094</FONT> throws FileNotFoundException<a name="line.94"></a>
<FONT color="green">095</FONT> {<a name="line.95"></a>
<FONT color="green">096</FONT> try {<a name="line.96"></a>
<FONT color="green">097</FONT> return (FileInputStream)<a name="line.97"></a>
<FONT color="green">098</FONT> AccessController.doPrivileged(new PrivilegedExceptionAction() {<a name="line.98"></a>
<FONT color="green">099</FONT> public Object run() throws FileNotFoundException {<a name="line.99"></a>
<FONT color="green">100</FONT> return new FileInputStream(file);<a name="line.100"></a>
<FONT color="green">101</FONT> }<a name="line.101"></a>
<FONT color="green">102</FONT> });<a name="line.102"></a>
<FONT color="green">103</FONT> } catch (PrivilegedActionException e) {<a name="line.103"></a>
<FONT color="green">104</FONT> throw (FileNotFoundException)e.getException();<a name="line.104"></a>
<FONT color="green">105</FONT> }<a name="line.105"></a>
<FONT color="green">106</FONT> }<a name="line.106"></a>
<FONT color="green">107</FONT> <a name="line.107"></a>
<FONT color="green">108</FONT> static InputStream getResourceAsStream(final ClassLoader cl,<a name="line.108"></a>
<FONT color="green">109</FONT> final String name)<a name="line.109"></a>
<FONT color="green">110</FONT> {<a name="line.110"></a>
<FONT color="green">111</FONT> return (InputStream)<a name="line.111"></a>
<FONT color="green">112</FONT> AccessController.doPrivileged(new PrivilegedAction() {<a name="line.112"></a>
<FONT color="green">113</FONT> public Object run() {<a name="line.113"></a>
<FONT color="green">114</FONT> InputStream ris;<a name="line.114"></a>
<FONT color="green">115</FONT> if (cl == null) {<a name="line.115"></a>
<FONT color="green">116</FONT> ris = ClassLoader.getSystemResourceAsStream(name);<a name="line.116"></a>
<FONT color="green">117</FONT> } else {<a name="line.117"></a>
<FONT color="green">118</FONT> ris = cl.getResourceAsStream(name);<a name="line.118"></a>
<FONT color="green">119</FONT> }<a name="line.119"></a>
<FONT color="green">120</FONT> return ris;<a name="line.120"></a>
<FONT color="green">121</FONT> }<a name="line.121"></a>
<FONT color="green">122</FONT> });<a name="line.122"></a>
<FONT color="green">123</FONT> }<a name="line.123"></a>
<FONT color="green">124</FONT> <a name="line.124"></a>
<FONT color="green">125</FONT> static boolean getFileExists(final File f) {<a name="line.125"></a>
<FONT color="green">126</FONT> return ((Boolean)<a name="line.126"></a>
<FONT color="green">127</FONT> AccessController.doPrivileged(new PrivilegedAction() {<a name="line.127"></a>
<FONT color="green">128</FONT> public Object run() {<a name="line.128"></a>
<FONT color="green">129</FONT> return f.exists() ? Boolean.TRUE : Boolean.FALSE;<a name="line.129"></a>
<FONT color="green">130</FONT> }<a name="line.130"></a>
<FONT color="green">131</FONT> })).booleanValue();<a name="line.131"></a>
<FONT color="green">132</FONT> }<a name="line.132"></a>
<FONT color="green">133</FONT> <a name="line.133"></a>
<FONT color="green">134</FONT> static long getLastModified(final File f) {<a name="line.134"></a>
<FONT color="green">135</FONT> return ((Long)<a name="line.135"></a>
<FONT color="green">136</FONT> AccessController.doPrivileged(new PrivilegedAction() {<a name="line.136"></a>
<FONT color="green">137</FONT> public Object run() {<a name="line.137"></a>
<FONT color="green">138</FONT> return new Long(f.lastModified());<a name="line.138"></a>
<FONT color="green">139</FONT> }<a name="line.139"></a>
<FONT color="green">140</FONT> })).longValue();<a name="line.140"></a>
<FONT color="green">141</FONT> }<a name="line.141"></a>
<FONT color="green">142</FONT> <a name="line.142"></a>
<FONT color="green">143</FONT> private SecuritySupport () {}<a name="line.143"></a>
<FONT color="green">144</FONT> }<a name="line.144"></a>
</PRE>
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