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<title>ExpectedOjectInputStream xref</title>
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<div id="overview"><a href="../../../../../apidocs/org/owasp/dependencycheck/utils/ExpectedOjectInputStream.html">View Javadoc</a></div><pre>
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<a class="jxr_linenumber" name="L1" href="#L1">1</a> <em class="jxr_comment">/*</em>
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<a class="jxr_linenumber" name="L2" href="#L2">2</a> <em class="jxr_comment"> * This file is part of dependency-check-core.</em>
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<a class="jxr_linenumber" name="L3" href="#L3">3</a> <em class="jxr_comment"> *</em>
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<a class="jxr_linenumber" name="L4" href="#L4">4</a> <em class="jxr_comment"> * Licensed under the Apache License, Version 2.0 (the "License");</em>
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<a class="jxr_linenumber" name="L5" href="#L5">5</a> <em class="jxr_comment"> * you may not use this file except in compliance with the License.</em>
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<a class="jxr_linenumber" name="L6" href="#L6">6</a> <em class="jxr_comment"> * You may obtain a copy of the License at</em>
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<a class="jxr_linenumber" name="L7" href="#L7">7</a> <em class="jxr_comment"> *</em>
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<a class="jxr_linenumber" name="L8" href="#L8">8</a> <em class="jxr_comment"> * <a href="http://www.apache.org/licenses/LICENSE-2." target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.</a>0</em>
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<a class="jxr_linenumber" name="L9" href="#L9">9</a> <em class="jxr_comment"> *</em>
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<a class="jxr_linenumber" name="L10" href="#L10">10</a> <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing, software</em>
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<a class="jxr_linenumber" name="L11" href="#L11">11</a> <em class="jxr_comment"> * distributed under the License is distributed on an "AS IS" BASIS,</em>
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<a class="jxr_linenumber" name="L12" href="#L12">12</a> <em class="jxr_comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
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<a class="jxr_linenumber" name="L13" href="#L13">13</a> <em class="jxr_comment"> * See the License for the specific language governing permissions and</em>
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<a class="jxr_linenumber" name="L14" href="#L14">14</a> <em class="jxr_comment"> * limitations under the License.</em>
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<a class="jxr_linenumber" name="L15" href="#L15">15</a> <em class="jxr_comment"> *</em>
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<a class="jxr_linenumber" name="L16" href="#L16">16</a> <em class="jxr_comment"> * Copyright (c) 2016 Jeremy Long. All Rights Reserved.</em>
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<a class="jxr_linenumber" name="L17" href="#L17">17</a> <em class="jxr_comment"> */</em>
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<a class="jxr_linenumber" name="L18" href="#L18">18</a> <strong class="jxr_keyword">package</strong> org.owasp.dependencycheck.utils;
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<a class="jxr_linenumber" name="L19" href="#L19">19</a>
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<a class="jxr_linenumber" name="L20" href="#L20">20</a> <strong class="jxr_keyword">import</strong> java.io.IOException;
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<a class="jxr_linenumber" name="L21" href="#L21">21</a> <strong class="jxr_keyword">import</strong> java.io.InputStream;
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<a class="jxr_linenumber" name="L22" href="#L22">22</a> <strong class="jxr_keyword">import</strong> java.io.InvalidClassException;
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<a class="jxr_linenumber" name="L23" href="#L23">23</a> <strong class="jxr_keyword">import</strong> java.io.ObjectInputStream;
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<a class="jxr_linenumber" name="L24" href="#L24">24</a> <strong class="jxr_keyword">import</strong> java.io.ObjectStreamClass;
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<a class="jxr_linenumber" name="L25" href="#L25">25</a> <strong class="jxr_keyword">import</strong> java.util.ArrayList;
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<a class="jxr_linenumber" name="L26" href="#L26">26</a> <strong class="jxr_keyword">import</strong> java.util.Arrays;
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<a class="jxr_linenumber" name="L27" href="#L27">27</a> <strong class="jxr_keyword">import</strong> java.util.List;
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<a class="jxr_linenumber" name="L28" href="#L28">28</a>
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<a class="jxr_linenumber" name="L29" href="#L29">29</a> <em class="jxr_javadoccomment">/**</em>
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<a class="jxr_linenumber" name="L30" href="#L30">30</a> <em class="jxr_javadoccomment"> * An ObjectInputStream that will only deserialize expected classes.</em>
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<a class="jxr_linenumber" name="L31" href="#L31">31</a> <em class="jxr_javadoccomment"> *</em>
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<a class="jxr_linenumber" name="L32" href="#L32">32</a> <em class="jxr_javadoccomment"> * @author Jeremy Long</em>
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<a class="jxr_linenumber" name="L33" href="#L33">33</a> <em class="jxr_javadoccomment"> */</em>
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<a class="jxr_linenumber" name="L34" href="#L34">34</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../org/owasp/dependencycheck/utils/ExpectedOjectInputStream.html">ExpectedOjectInputStream</a> <strong class="jxr_keyword">extends</strong> ObjectInputStream {
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<a class="jxr_linenumber" name="L35" href="#L35">35</a>
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<a class="jxr_linenumber" name="L36" href="#L36">36</a> <em class="jxr_javadoccomment">/**</em>
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<a class="jxr_linenumber" name="L37" href="#L37">37</a> <em class="jxr_javadoccomment"> * The list of fully qualified class names that are able to be deserialized.</em>
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<a class="jxr_linenumber" name="L38" href="#L38">38</a> <em class="jxr_javadoccomment"> */</em>
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<a class="jxr_linenumber" name="L39" href="#L39">39</a> <strong class="jxr_keyword">private</strong> List<String> expected = <strong class="jxr_keyword">new</strong> ArrayList<String>();
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<a class="jxr_linenumber" name="L40" href="#L40">40</a>
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<a class="jxr_linenumber" name="L41" href="#L41">41</a> <em class="jxr_javadoccomment">/**</em>
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<a class="jxr_linenumber" name="L42" href="#L42">42</a> <em class="jxr_javadoccomment"> * Constructs a new ExpectedOjectInputStream that can be used to securely deserialize an object by restricting the classes</em>
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<a class="jxr_linenumber" name="L43" href="#L43">43</a> <em class="jxr_javadoccomment"> * that can deserialized to a known set of expected classes.</em>
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<a class="jxr_linenumber" name="L44" href="#L44">44</a> <em class="jxr_javadoccomment"> *</em>
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<a class="jxr_linenumber" name="L45" href="#L45">45</a> <em class="jxr_javadoccomment"> * @param inputStream the input stream that contains the object to deserialize</em>
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<a class="jxr_linenumber" name="L46" href="#L46">46</a> <em class="jxr_javadoccomment"> * @param expected the fully qualified class names of the classes that can be deserialized</em>
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<a class="jxr_linenumber" name="L47" href="#L47">47</a> <em class="jxr_javadoccomment"> * @throws IOException thrown if there is an error reading from the stream</em>
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<a class="jxr_linenumber" name="L48" href="#L48">48</a> <em class="jxr_javadoccomment"> */</em>
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<a class="jxr_linenumber" name="L49" href="#L49">49</a> <strong class="jxr_keyword">public</strong> <a href="../../../../org/owasp/dependencycheck/utils/ExpectedOjectInputStream.html">ExpectedOjectInputStream</a>(InputStream inputStream, String... expected) <strong class="jxr_keyword">throws</strong> IOException {
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<a class="jxr_linenumber" name="L50" href="#L50">50</a> <strong class="jxr_keyword">super</strong>(inputStream);
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<a class="jxr_linenumber" name="L51" href="#L51">51</a> <strong class="jxr_keyword">this</strong>.expected.addAll(Arrays.asList(expected));
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<a class="jxr_linenumber" name="L52" href="#L52">52</a> }
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<a class="jxr_linenumber" name="L53" href="#L53">53</a>
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<a class="jxr_linenumber" name="L54" href="#L54">54</a> <em class="jxr_javadoccomment">/**</em>
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<a class="jxr_linenumber" name="L55" href="#L55">55</a> <em class="jxr_javadoccomment"> * Only deserialize instances of expected classes by validating the class name prior to deserialization.</em>
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<a class="jxr_linenumber" name="L56" href="#L56">56</a> <em class="jxr_javadoccomment"> *</em>
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<a class="jxr_linenumber" name="L57" href="#L57">57</a> <em class="jxr_javadoccomment"> * @param desc the class from the object stream to validate</em>
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<a class="jxr_linenumber" name="L58" href="#L58">58</a> <em class="jxr_javadoccomment"> * @return the resolved class</em>
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<a class="jxr_linenumber" name="L59" href="#L59">59</a> <em class="jxr_javadoccomment"> * @throws java.io.IOException thrown if the class being read is not one of the expected classes or if there is an error</em>
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<a class="jxr_linenumber" name="L60" href="#L60">60</a> <em class="jxr_javadoccomment"> * reading from the stream</em>
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<a class="jxr_linenumber" name="L61" href="#L61">61</a> <em class="jxr_javadoccomment"> * @throws java.lang.ClassNotFoundException thrown if there is an error finding the class to deserialize</em>
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<a class="jxr_linenumber" name="L62" href="#L62">62</a> <em class="jxr_javadoccomment"> */</em>
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<a class="jxr_linenumber" name="L63" href="#L63">63</a> @Override
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<a class="jxr_linenumber" name="L64" href="#L64">64</a> <strong class="jxr_keyword">protected</strong> Class<?> resolveClass(ObjectStreamClass desc) <strong class="jxr_keyword">throws</strong> IOException, ClassNotFoundException {
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<a class="jxr_linenumber" name="L65" href="#L65">65</a> <strong class="jxr_keyword">if</strong> (!<strong class="jxr_keyword">this</strong>.expected.contains(desc.getName())) {
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<a class="jxr_linenumber" name="L66" href="#L66">66</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> InvalidClassException(<span class="jxr_string">"Unexpected deserialization "</span>, desc.getName());
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<a class="jxr_linenumber" name="L67" href="#L67">67</a> }
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<a class="jxr_linenumber" name="L68" href="#L68">68</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">super</strong>.resolveClass(desc);
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<a class="jxr_linenumber" name="L69" href="#L69">69</a> }
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<a class="jxr_linenumber" name="L70" href="#L70">70</a> }
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</pre>
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