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Merge pull request #5789 from gdicristofaro/6251-isSupportedNPE

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6251 is supported NPE
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Richard Cordovano 2020-04-15 12:31:14 -04:00 committed by GitHub
commit b1e62b318a
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1 changed files with 20 additions and 2 deletions
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20
Core/src/org/sleuthkit/autopsy/textextractors/TextFileExtractor.java
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@ -25,8 +25,10 @@ import java.io.Reader;
import java.nio.charset.Charset; import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets; import java.nio.charset.StandardCharsets;
import java.util.logging.Level; import java.util.logging.Level;
import org.apache.commons.lang.StringUtils;
import org.sleuthkit.autopsy.coreutils.Logger; import org.sleuthkit.autopsy.coreutils.Logger;
import org.sleuthkit.autopsy.coreutils.textutils.EncodingUtils; import org.sleuthkit.autopsy.coreutils.textutils.EncodingUtils;
import org.sleuthkit.autopsy.modules.filetypeid.FileTypeDetector;
import org.sleuthkit.datamodel.AbstractFile; import org.sleuthkit.datamodel.AbstractFile;
import org.sleuthkit.datamodel.ReadContentInputStream; import org.sleuthkit.datamodel.ReadContentInputStream;
import org.sleuthkit.datamodel.TskCoreException; import org.sleuthkit.datamodel.TskCoreException;
@ -38,6 +40,7 @@ public final class TextFileExtractor implements TextExtractor {
private static final Logger logger = Logger.getLogger(TextFileExtractor.class.getName()); private static final Logger logger = Logger.getLogger(TextFileExtractor.class.getName());
private final AbstractFile file; private final AbstractFile file;
private static final String PLAIN_TEXT_MIME_TYPE = "text/plain";
private Charset encoding = null; private Charset encoding = null;
@ -74,6 +77,21 @@ public final class TextFileExtractor implements TextExtractor {
@Override @Override
public boolean isSupported() { public boolean isSupported() {
return file.getMIMEType().equals("text/plain"); // get the MIME type
String mimeType = file.getMIMEType();
// if it is not present, attempt to use the FileTypeDetector to determine
if (StringUtils.isEmpty(mimeType)) {
FileTypeDetector fileTypeDetector = null;
try {
fileTypeDetector = new FileTypeDetector();
} catch (FileTypeDetector.FileTypeDetectorInitException ex) {
logger.log(Level.SEVERE, "Unable to create file type detector for determining MIME type.");
return false;
}
mimeType = fileTypeDetector.getMIMEType(file);
}
return PLAIN_TEXT_MIME_TYPE.equals(mimeType);
} }
} }