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List:       poi-user
Subject:    RE: protected word doc
From:       "Sushil Khekare" <Sushil.Khekare () symphonysv ! com>
Date:       2006-05-18 6:55:07
Message-ID: DD8AEE8B34FBBF4E9135BE48418C3FB63BED40 () PUNMAIL ! symphonysv ! com
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Cool. It works and also solved my problem thanks a lot Daniel.

Sushil 

-----Original Message-----
From: Daniel Noll [mailto:daniel@nuix.com.au] 
Sent: Thursday, May 18, 2006 11:06 AM
To: POI Users List
Subject: Re: protected word doc

Sushil Khekare wrote:
> How to find out a document is encrypted using java. While using POI 
> error is thrown at constructor level only so no way to use any method 
> on the object of wordDocument or hwpfdocument.

Here's one way:

     POIFSFileSystem fileSystem = // ...

     Entry summaryEntry = fileSystem.getRoot().getEntry(
         SummaryInformation.DEFAULT_STREAM_NAME);
     if (summaryEntry instanceof DocumentEntry) {
         PropertySet ps = PropertySetFactory.create(
             new DocumentInputStream((DocumentEntry) summaryEntry));
         SummaryInformation summary = new SummaryInformation(ps);
         if ((summary.getSecurity() & PASSWORD_PROTECTED_MASK) != 0) {
             // Is encrypted
         }
     }

This is trusting the summary properties, and the summary properties
might be lying, but it works for us.

Daniel


--
Daniel Noll

Nuix Pty Ltd
Suite 79, 89 Jones St, Ultimo NSW 2007, Australia    Ph: +61 2 9280 0699
Web: http://www.nuix.com.au/                        Fax: +61 2 9212 6902

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