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Normalize Path for plugin data

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Added normalize path to fileSet and moved check code from plugin to normalize path.  Added check if file length is 0 to skip checking for file, bad data causes this.
This commit is contained in:
Mark McKinnon 2018-03-06 11:41:46 -08:00
parent 20aeaef2ee
commit a60742df33
1 changed files with 17 additions and 64 deletions
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81
Core/src/org/sleuthkit/autopsy/datasourceprocessors/VolatilityProcessor.java
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@ -225,7 +225,11 @@ class VolatilityProcessor implements Runnable{
File volfile = new File(file);
String fileName = volfile.getName().trim();
// if there is no extension, add a wildcard to the end
// File does not have any data in it based on bad data
if (fileName.length() < 1) {
continue;
}
// if there is no extension, add a wildcard to the end
if (fileName.contains(".") == false) {
// if there is already the same entry with ".exe" in the set, just use that one
if (fileSet.contains(file + ".exe"))
@ -317,6 +321,7 @@ class VolatilityProcessor implements Runnable{
}
private String normalizePath(String filePath) {
filePath = filePath.trim();
if (filePath == null)
return "";
@ -329,6 +334,8 @@ class VolatilityProcessor implements Runnable{
filePath = filePath.replaceAll("\\\\", "/");
filePath = filePath.toLowerCase();
filePath = filePath.replaceAll("/systemroot/", "/windows/");
filePath = filePath.replaceAll("device/","");
filePath = filePath.replaceAll("harddiskvolume[0-9]/", "");
return filePath;
}
@ -344,15 +351,13 @@ class VolatilityProcessor implements Runnable{
String file_path = null;
if (line.contains(TAG)) {
file_path = line.substring(82);
file_path = file_path.replaceAll("Device\\\\","");
file_path = file_path.replaceAll("HarddiskVolume[0-9]\\\\", "");
if (file_path.contains("\"")) {
file_path = file_path.substring(0, file_path.indexOf("\""));
}
else {
// ERROR
}
fileSet.add(file_path.toLowerCase());
fileSet.add(normalizePath(file_path));
}
}
br.close();
@ -422,9 +427,7 @@ class VolatilityProcessor implements Runnable{
try {
String file_path;
file_path = line.substring(41);
file_path = file_path.replaceAll("Device\\\\","");
file_path = file_path.replaceAll("HarddiskVolume[0-9]\\\\", "");
fileSet.add(file_path.toLowerCase());
fileSet.add(normalizePath(file_path));
} catch (StringIndexOutOfBoundsException ex) {
// TO DO Catch exception
}
@ -493,8 +496,8 @@ class VolatilityProcessor implements Runnable{
else {
// ERROR
}
fileSet.add(file_path.toLowerCase());
}
fileSet.add(normalizePath(file_path));
}
}
br.close();
} catch (IOException ex) {
@ -513,7 +516,7 @@ class VolatilityProcessor implements Runnable{
String file_path;
file_path = line.substring(19, 37);
if (!file_path.startsWith("System")) {
fileSet.add(file_path.toLowerCase());
fileSet.add(normalizePath(file_path));
}
}
br.close();
@ -533,7 +536,7 @@ class VolatilityProcessor implements Runnable{
String file_path;
file_path = line.substring(19, 41);
if (!file_path.startsWith("System")) {
fileSet.add(file_path.toLowerCase());
fileSet.add(normalizePath(file_path));
}
}
br.close();
@ -554,7 +557,7 @@ class VolatilityProcessor implements Runnable{
file_path = line.substring(19, 41);
if (!file_path.startsWith("System ")) {
if (file_path.trim().length() > 0) {;
fileSet.add(file_path.toLowerCase().trim());
fileSet.add(normalizePath(file_path));
}
}
}
@ -577,7 +580,7 @@ class VolatilityProcessor implements Runnable{
if (line.contains(TAG)) {
file_path = line.substring(line.indexOf(":") + 1, 52);
if (!file_path.startsWith("System")) {
fileSet.add(file_path.toLowerCase());
fileSet.add(normalizePath(file_path));
}
}
}
@ -615,7 +618,7 @@ class VolatilityProcessor implements Runnable{
file_path = file_path.substring(0, file_path.indexOf(" "));
}
}
fileSet.add(file_path.toLowerCase());
fileSet.add(normalizePath(file_path));
}
}
br.close();
@ -625,56 +628,6 @@ class VolatilityProcessor implements Runnable{
return fileSet;
}
private Map<String, String> dedupeFileList(Map<String, Map> fileList) {
Map<String, String> fileMap = new HashMap<>();
Map<String, String> newFileMap = new HashMap<>();
Set<String> keySet = fileList.keySet();
Iterator<String> keySetIterator = keySet.iterator();
while (keySetIterator.hasNext()) {
String key = keySetIterator.next();
fileMap = fileList.get(key);
for ( String key1 : fileMap.keySet() ) {
newFileMap.put(key1,fileMap.get(key1));
}
}
return newFileMap;
}
private List<String> parsePluginOutput(File pluginFile) throws FileNotFoundException {
// create a Buffered Reader object instance with a FileReader
List<String> fileNames = new ArrayList<>();
String line;
Pattern filePathPattern = Pattern.compile("(\\\\[.-\\\\\\w\\\\s]+)+");
Pattern fileName1Pattern = Pattern.compile("(\\s)([^!()\\,:][\\w-._]+)([^\\s()!:\\]]+)");
Pattern fileName2Pattern = Pattern.compile("([^!()\\,:][\\w-._]+)([^\\s()!:\\]]+)");
try {
BufferedReader br = new BufferedReader(new FileReader(pluginFile));
// read the first line from the text file
while ((line = br.readLine()) != null) {
Matcher matcher = filePathPattern.matcher(line);
if (matcher.find()) {
fileNames.add(matcher.group());
} else {
Matcher matcher1 = fileName1Pattern.matcher(line);
if (matcher1.find()) {
fileNames.add(matcher1.group());
} else {
Matcher matcher2 = fileName2Pattern.matcher(line);
if (matcher2.find()) {
fileNames.add(matcher2.group());
}
}
}
}
br.close();
} catch (IOException ex) {
// @@@ NEed to log or rethrow
Exceptions.printStackTrace(ex);
}
return fileNames;
}
void cancel() {
isCancelled = true;
}