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290: Extracted some methods to reduce average method size, and eliminate some duplicate code.

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This commit is contained in:
Dale Visser
2015-08-05 15:21:14 -04:00
parent d529e88242
commit 56424924bb
1 changed files with 63 additions and 64 deletions
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127
dependency-check-core/src/main/java/org/owasp/dependencycheck/analyzer/ArchiveAnalyzer.java
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@@ -17,22 +17,6 @@
*/
package org.owasp.dependencycheck.analyzer;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileFilter;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Enumeration;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.apache.commons.compress.archivers.ArchiveEntry;
import org.apache.commons.compress.archivers.ArchiveInputStream;
import org.apache.commons.compress.archivers.tar.TarArchiveInputStream;
@@ -52,6 +36,9 @@ import org.owasp.dependencycheck.utils.Settings;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.*;
import java.util.*;
/**
* <p>
* An analyzer that extracts files from archives and ensures any supported files contained within the archive are added to the
@@ -113,7 +100,7 @@ public class ArchiveAnalyzer extends AbstractFileTypeAnalyzer {
static {
final String additionalZipExt = Settings.getString(Settings.KEYS.ADDITIONAL_ZIP_EXTENSIONS);
if (additionalZipExt != null) {
final Set<String> ext = new HashSet<String>(Arrays.asList(additionalZipExt));
final Set<String> ext = new HashSet<String>(Collections.singletonList(additionalZipExt));
ZIPPABLES.addAll(ext);
}
EXTENSIONS.addAll(ZIPPABLES);
@@ -205,7 +192,7 @@ public class ArchiveAnalyzer extends AbstractFileTypeAnalyzer {
* and added to the list of dependencies within the engine.
*
* @param dependency the dependency to analyze
* @param engine the engine scanning
* @param engine the engine scanning
* @throws AnalysisException thrown if there is an analysis exception
*/
@Override
@@ -215,15 +202,8 @@ public class ArchiveAnalyzer extends AbstractFileTypeAnalyzer {
extractFiles(f, tmpDir, engine);
//make a copy
List<Dependency> dependencies = new ArrayList<Dependency>(engine.getDependencies());
engine.scan(tmpDir);
List<Dependency> newDependencies = engine.getDependencies();
if (dependencies.size() != newDependencies.size()) {
//get the new dependencies
final Set<Dependency> dependencySet = new HashSet<Dependency>();
dependencySet.addAll(newDependencies);
dependencySet.removeAll(dependencies);
final Set<Dependency> dependencySet = findMoreDependencies(engine, tmpDir);
if (!dependencySet.isEmpty()) {
for (Dependency d : dependencySet) {
//fix the dependency's display name and path
final String displayPath = String.format("%s%s",
@@ -245,41 +225,60 @@ public class ArchiveAnalyzer extends AbstractFileTypeAnalyzer {
}
}
if (REMOVE_FROM_ANALYSIS.accept(dependency.getActualFile())) {
if (ZIP_FILTER.accept(dependency.getActualFile()) && isZipFileActuallyJarFile(dependency)) {
final File tdir = getNextTempDirectory();
final String fileName = dependency.getFileName();
LOGGER.info(String.format("The zip file '%s' appears to be a JAR file, making a copy and analyzing it as a JAR.", fileName));
final File tmpLoc = new File(tdir, fileName.substring(0, fileName.length() - 3) + "jar");
try {
org.apache.commons.io.FileUtils.copyFile(tdir, tmpLoc);
dependencies = new ArrayList<Dependency>(engine.getDependencies());
engine.scan(tmpLoc);
newDependencies = engine.getDependencies();
if (dependencies.size() != newDependencies.size()) {
//get the new dependencies
final Set<Dependency> dependencySet = new HashSet<Dependency>();
dependencySet.addAll(newDependencies);
dependencySet.removeAll(dependencies);
if (dependencySet.size() != 1) {
LOGGER.info("Deep copy of ZIP to JAR file resulted in more then one dependency?");
}
for (Dependency d : dependencySet) {
//fix the dependency's display name and path
d.setFilePath(dependency.getFilePath());
d.setDisplayFileName(dependency.getFileName());
}
}
} catch (IOException ex) {
LOGGER.debug("Unable to perform deep copy on '{}'", dependency.getActualFile().getPath(), ex);
}
}
addDisguisedJarsToDependencies(dependency, engine);
engine.getDependencies().remove(dependency);
}
Collections.sort(engine.getDependencies());
}
private void addDisguisedJarsToDependencies(Dependency dependency, Engine engine) throws AnalysisException {
if (ZIP_FILTER.accept(dependency.getActualFile()) && isZipFileActuallyJarFile(dependency)) {
final File tdir = getNextTempDirectory();
final String fileName = dependency.getFileName();
LOGGER.info(String.format("The zip file '%s' appears to be a JAR file, making a copy and analyzing it as a JAR.", fileName));
final File tmpLoc = new File(tdir, fileName.substring(0, fileName.length() - 3) + "jar");
try {
org.apache.commons.io.FileUtils.copyFile(tdir, tmpLoc);
final Set<Dependency> dependencySet = findMoreDependencies(engine, tmpLoc);
if (!dependencySet.isEmpty()) {
if (dependencySet.size() != 1) {
LOGGER.info("Deep copy of ZIP to JAR file resulted in more than one dependency?");
}
for (Dependency d : dependencySet) {
//fix the dependency's display name and path
d.setFilePath(dependency.getFilePath());
d.setDisplayFileName(dependency.getFileName());
}
}
} catch (IOException ex) {
LOGGER.debug("Unable to perform deep copy on '{}'", dependency.getActualFile().getPath(), ex);
}
}
}
private static final Set<Dependency> EMPTY_DEPENDENCY_SET = Collections.emptySet();
private Set<Dependency> findMoreDependencies(Engine engine, File tmpDir) {
//make a copy
List<Dependency> dependencies = new ArrayList<Dependency>(engine.getDependencies());
engine.scan(tmpDir);
List<Dependency> newDependencies = engine.getDependencies();
final boolean sizeChanged = dependencies.size() != newDependencies.size();
final Set<Dependency> dependencySet;
if (sizeChanged) {
//get the new dependencies
dependencySet = new HashSet<Dependency>();
dependencySet.addAll(newDependencies);
dependencySet.removeAll(dependencies);
} else {
dependencySet = EMPTY_DEPENDENCY_SET;
}
return dependencySet;
}
/**
* Retrieves the next temporary directory to extract an archive too.
*
@@ -303,9 +302,9 @@ public class ArchiveAnalyzer extends AbstractFileTypeAnalyzer {
/**
* Extracts the contents of an archive into the specified directory.
*
* @param archive an archive file such as a WAR or EAR
* @param archive an archive file such as a WAR or EAR
* @param destination a directory to extract the contents to
* @param engine the scanning engine
* @param engine the scanning engine
* @throws AnalysisException thrown if the archive is not found
*/
private void extractFiles(File archive, File destination, Engine engine) throws AnalysisException {
@@ -313,7 +312,7 @@ public class ArchiveAnalyzer extends AbstractFileTypeAnalyzer {
return;
}
FileInputStream fis = null;
FileInputStream fis;
try {
fis = new FileInputStream(archive);
} catch (FileNotFoundException ex) {
@@ -351,9 +350,9 @@ public class ArchiveAnalyzer extends AbstractFileTypeAnalyzer {
/**
* Extracts files from an archive.
*
* @param input the archive to extract files from
* @param input the archive to extract files from
* @param destination the location to write the files too
* @param engine the dependency-check engine
* @param engine the dependency-check engine
* @throws ArchiveExtractionException thrown if there is an exception extracting files from the archive
*/
private void extractArchive(ArchiveInputStream input, File destination, Engine engine) throws ArchiveExtractionException {
@@ -436,7 +435,7 @@ public class ArchiveAnalyzer extends AbstractFileTypeAnalyzer {
* Decompresses a file.
*
* @param inputStream the compressed file
* @param outputFile the location to write the decompressed file
* @param outputFile the location to write the decompressed file
* @throws ArchiveExtractionException thrown if there is an exception decompressing the file
*/
private void decompressFile(CompressorInputStream inputStream, File outputFile) throws ArchiveExtractionException {
@@ -445,7 +444,7 @@ public class ArchiveAnalyzer extends AbstractFileTypeAnalyzer {
try {
out = new FileOutputStream(outputFile);
final byte[] buffer = new byte[BUFFER_SIZE];
int n = 0;
int n; // = 0
while (-1 != (n = inputStream.read(buffer))) {
out.write(buffer, 0, n);
}