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List encrypted archive entries, if available, in SevenZipParser (#1574) #1575

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List encrypted archive entries, if available, in SevenZipParser (#1574) #1575

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46 changes: 45 additions & 1 deletion iped-parsers/iped-parsers-impl/src/main/java/iped/parsers/compress/SevenZipParser.java
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Original file line number Diff line number Diff line change
Expand Up @@ -8,9 +8,11 @@
import java.io.RandomAccessFile;
import java.nio.file.Files;
import java.nio.file.StandardOpenOption;
import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Random;
import java.util.Set;
import java.util.TreeMap;
Expand All @@ -37,11 +39,13 @@
import iped.parsers.util.Util;
import iped.properties.ExtraProperties;
import iped.utils.IOUtil;
import iped.utils.LocalizedFormat;
import net.sf.sevenzipjbinding.ExtractAskMode;
import net.sf.sevenzipjbinding.ExtractOperationResult;
import net.sf.sevenzipjbinding.IArchiveExtractCallback;
import net.sf.sevenzipjbinding.IInArchive;
import net.sf.sevenzipjbinding.ISequentialOutStream;
import net.sf.sevenzipjbinding.PropID;
import net.sf.sevenzipjbinding.SevenZip;
import net.sf.sevenzipjbinding.SevenZipException;
import net.sf.sevenzipjbinding.impl.RandomAccessFileInStream;
Expand Down Expand Up @@ -141,8 +145,10 @@ public void parse(InputStream stream, ContentHandler handler, Metadata metadata,
ArrayList<Integer> itemsToExtract = new ArrayList<Integer>();
for (int i = 0; i < simpleInArchive.getNumberOfItems(); i++) {
ISimpleInArchiveItem item = simpleInArchive.getArchiveItem(i);
if (item.isEncrypted())
if (item.isEncrypted()) {
listArchiveContent(inArchive, xhtml);
throw new EncryptedDocumentException();
}
if (item.isFolder())
folderMap.put(item.getPath(), i);
else
Expand Down Expand Up @@ -174,6 +180,44 @@ public void parse(InputStream stream, ContentHandler handler, Metadata metadata,
}

}

private void listArchiveContent(IInArchive inArchive, XHTMLContentHandler xhtml) {
int maxNumEntries = 1 << 24;
List<String> entries = new ArrayList<String>();
try {
int numEntries = Math.min(maxNumEntries, inArchive.getNumberOfItems());
DecimalFormat nf = LocalizedFormat.getDecimalInstance("#,##0");
StringBuilder sb = new StringBuilder();
for (int i = 0; i < numEntries; i++) {
sb.append((String) inArchive.getProperty(i, PropID.PATH));
Boolean isFolder = (Boolean) inArchive.getProperty(i, PropID.IS_FOLDER);
if (isFolder != null && isFolder.booleanValue()) {
sb.append(" [FOLDER]");
} else {
Long size = (Long) inArchive.getProperty(i, PropID.SIZE);
if (size != null && size > 0) {
sb.append(" [").append(nf.format(size)).append(" bytes]");
}
}
entries.add(sb.toString());
sb.delete(0, sb.length());
}
} catch (Exception e) {
} finally {
try {
if (!entries.isEmpty()) {
Collections.sort(entries);
xhtml.startElement("pre");
for (String entry : entries) {
xhtml.characters(entry);
xhtml.newline();
}
xhtml.endElement("pre");
}
} catch (Exception e) {
}
}
}

public class MyExtractCallback implements IArchiveExtractCallback {

Expand Down