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  1. PDFBox
  2. PDFBOX-2823

StringIndexOutOfBoundsException when doing DateConverter.parseDate()

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 1.8.9, 1.8.10
    • Fix Version/s: 1.8.10
    • Component/s: Parsing
    • Labels:
      None

      Description

      From Kevin J. in the user mailing list:

      We are currently using Apache Solr / Tika to index documents for searching. The exact version that is being used is version 1.8.8 of PDFBox.

      We can across a document that produced this stack trace (trimmed to the relevant part of PDFBox):

      Caused by: java.lang.StringIndexOutOfBoundsException: String index out of range: 1
              at java.lang.String.charAt(String.java:658)
              at org.apache.pdfbox.util.DateConverter.parseDate(DateConverter.java:679)
              at org.apache.pdfbox.util.DateConverter.toCalendar(DateConverter.java:808)
              at org.apache.pdfbox.util.DateConverter.toCalendar(DateConverter.java:780)
              at org.apache.pdfbox.util.DateConverter.toCalendar(DateConverter.java:753)
              at org.apache.pdfbox.cos.COSDictionary.getDate(COSDictionary.java:849)
              at org.apache.pdfbox.pdmodel.PDDocumentInformation.getCreationDate(PDDocumentInformation.java:212)
      

      Inspection of the document's binary revealed that it contained a creationDate consisting of a single white space (ASCII 0x20), which is probably illegal. I managed to create a small reproduction of the error using like so:

      File file = new File("/path/to/document/bad.pdf");
      InputStream stream = new FileInputStream(file);
      PDFParser parser = new PDFParser(stream);
      parser.parse();
      PDDocumentInformation info = parser.getPDDocument().getDocumentInformation();
      Calendar creationDate = info.getCreationDate();
      System.out.println(creationDate.toString());
      

      Which produces the same stack trace. I verified this against the latest build from the site on 1.8.9, and the behavior remains. This looks very similar to PDFBOX-1803, however that issue is marked as resolved in 1.8.5. So, my questions:

      • Is the exception an expected behavior? Ideally Tika would just index the document anyway, the creation date isn't important to us. Tika had an issue for this, TIKA-1233, that marks it as fixed by swallowing the exception, but looking at the comments for it, they removed the try/catch in r1593983 since it is marked as fixed here.
      • Is this a regression, or slightly different somehow from 1803? Shall I create a new issue or get the existing 1803 re-opened?
      • The PDF that reproduces the issue can be downloaded here: https://www.dropbox.com/s/tll5rscrlt95xuc/bad.pdf?dl=0

        Attachments

        1. PDFBOX-2823.pdf
          42 kB
          Tilman Hausherr

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              • Assignee:
                tilman Tilman Hausherr
                Reporter:
                tilman Tilman Hausherr
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                • Created:
                  Updated:
                  Resolved: