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
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Daniel Noll
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