| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| FileNameAnalyzer |
|
| 2.0;2 |
| 1 | /* | |
| 2 | * This file is part of dependency-check-core. | |
| 3 | * | |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
| 5 | * you may not use this file except in compliance with the License. | |
| 6 | * You may obtain a copy of the License at | |
| 7 | * | |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 9 | * | |
| 10 | * Unless required by applicable law or agreed to in writing, software | |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, | |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 13 | * See the License for the specific language governing permissions and | |
| 14 | * limitations under the License. | |
| 15 | * | |
| 16 | * Copyright (c) 2012 Jeremy Long. All Rights Reserved. | |
| 17 | */ | |
| 18 | package org.owasp.dependencycheck.analyzer; | |
| 19 | ||
| 20 | import org.owasp.dependencycheck.analyzer.exception.AnalysisException; | |
| 21 | import java.io.File; | |
| 22 | import java.util.Set; | |
| 23 | import org.owasp.dependencycheck.Engine; | |
| 24 | import org.owasp.dependencycheck.dependency.Confidence; | |
| 25 | import org.owasp.dependencycheck.dependency.Dependency; | |
| 26 | import org.owasp.dependencycheck.utils.DependencyVersion; | |
| 27 | import org.owasp.dependencycheck.utils.DependencyVersionUtil; | |
| 28 | ||
| 29 | /** | |
| 30 | * | |
| 31 | * Takes a dependency and analyzes the filename and determines the hashes. | |
| 32 | * | |
| 33 | * @author Jeremy Long <jeremy.long@owasp.org> | |
| 34 | */ | |
| 35 | public class FileNameAnalyzer extends AbstractAnalyzer implements Analyzer { | |
| 36 | ||
| 37 | //<editor-fold defaultstate="collapsed" desc="All standard implmentation details of Analyzer"> | |
| 38 | /** | |
| 39 | * The name of the analyzer. | |
| 40 | */ | |
| 41 | private static final String ANALYZER_NAME = "File Name Analyzer"; | |
| 42 | /** | |
| 43 | * The phase that this analyzer is intended to run in. | |
| 44 | */ | |
| 45 | 1 | private static final AnalysisPhase ANALYSIS_PHASE = AnalysisPhase.INFORMATION_COLLECTION; |
| 46 | /** | |
| 47 | * The set of file extensions supported by this analyzer. | |
| 48 | */ | |
| 49 | 1 | private static final Set<String> EXTENSIONS = null; |
| 50 | ||
| 51 | /** | |
| 52 | * Returns a list of file EXTENSIONS supported by this analyzer. | |
| 53 | * | |
| 54 | * @return a list of file EXTENSIONS supported by this analyzer. | |
| 55 | */ | |
| 56 | public Set<String> getSupportedExtensions() { | |
| 57 | 149 | return EXTENSIONS; |
| 58 | } | |
| 59 | ||
| 60 | /** | |
| 61 | * Returns the name of the analyzer. | |
| 62 | * | |
| 63 | * @return the name of the analyzer. | |
| 64 | */ | |
| 65 | public String getName() { | |
| 66 | 10 | return ANALYZER_NAME; |
| 67 | } | |
| 68 | ||
| 69 | /** | |
| 70 | * Returns whether or not this analyzer can process the given extension. | |
| 71 | * | |
| 72 | * @param extension the file extension to test for support. | |
| 73 | * @return whether or not the specified file extension is supported by this analyzer. | |
| 74 | */ | |
| 75 | public boolean supportsExtension(String extension) { | |
| 76 | 10 | return true; |
| 77 | } | |
| 78 | ||
| 79 | /** | |
| 80 | * Returns the phase that the analyzer is intended to run in. | |
| 81 | * | |
| 82 | * @return the phase that the analyzer is intended to run in. | |
| 83 | */ | |
| 84 | public AnalysisPhase getAnalysisPhase() { | |
| 85 | 7 | return ANALYSIS_PHASE; |
| 86 | } | |
| 87 | //</editor-fold> | |
| 88 | ||
| 89 | /** | |
| 90 | * Collects information about the file name. | |
| 91 | * | |
| 92 | * @param dependency the dependency to analyze. | |
| 93 | * @param engine the engine that is scanning the dependencies | |
| 94 | * @throws AnalysisException is thrown if there is an error reading the JAR file. | |
| 95 | */ | |
| 96 | @Override | |
| 97 | public void analyze(Dependency dependency, Engine engine) throws AnalysisException { | |
| 98 | ||
| 99 | //strip any path information that may get added by ArchiveAnalyzer, etc. | |
| 100 | 18 | final File f = new File(dependency.getFileName()); |
| 101 | 18 | String fileName = f.getName(); |
| 102 | ||
| 103 | //remove file extension | |
| 104 | 18 | final int pos = fileName.lastIndexOf("."); |
| 105 | 18 | if (pos > 0) { |
| 106 | 18 | fileName = fileName.substring(0, pos); |
| 107 | } | |
| 108 | ||
| 109 | //add version evidence | |
| 110 | 18 | final DependencyVersion version = DependencyVersionUtil.parseVersion(fileName); |
| 111 | 18 | if (version != null) { |
| 112 | // If the version number is just a number like 2 or 23, reduce the confidence | |
| 113 | // a shade. This should hopefully correct for cases like log4j.jar or | |
| 114 | // struts2-core.jar | |
| 115 | 10 | if (version.getVersionParts() == null || version.getVersionParts().size() < 2) { |
| 116 | 0 | dependency.getVersionEvidence().addEvidence("file", "name", |
| 117 | version.toString(), Confidence.MEDIUM); | |
| 118 | } else { | |
| 119 | 10 | dependency.getVersionEvidence().addEvidence("file", "name", |
| 120 | version.toString(), Confidence.HIGHEST); | |
| 121 | } | |
| 122 | 10 | dependency.getVersionEvidence().addEvidence("file", "name", |
| 123 | fileName, Confidence.MEDIUM); | |
| 124 | } | |
| 125 | ||
| 126 | //add as vendor and product evidence | |
| 127 | 18 | if (fileName.contains("-")) { |
| 128 | 10 | dependency.getProductEvidence().addEvidence("file", "name", |
| 129 | fileName, Confidence.HIGHEST); | |
| 130 | 10 | dependency.getVendorEvidence().addEvidence("file", "name", |
| 131 | fileName, Confidence.HIGHEST); | |
| 132 | } else { | |
| 133 | 8 | dependency.getProductEvidence().addEvidence("file", "name", |
| 134 | fileName, Confidence.HIGH); | |
| 135 | 8 | dependency.getVendorEvidence().addEvidence("file", "name", |
| 136 | fileName, Confidence.HIGH); | |
| 137 | } | |
| 138 | 18 | } |
| 139 | } |