We try to avoid throwing ClassCastException, but it was possible
to trigger one here with a specially crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61400

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911618 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing NullPointerException, but it was possible
to trigger one here with a specially crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61390

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911615 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing NullPointerException, but it was possible
to trigger one here with a specially crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61372

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911603 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing ClassCastException, but it was possible
to trigger one here with a specially crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61330

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911586 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid causing StackOverflow, but it was possible
to trigger one here with a specially crafted input-file.

This puts a limit on the number of nested children in place
and logs a warning when the Stream is not fully parsed.

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61256

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911577 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing ClassCastException, but it was possible
to trigger one here with a specially crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61306

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911573 13f79535-47bb-0310-9956-ffa450edef68

Some CI runs seem to throw the exception with an empty message instead of 
the expected text.

I could not reproduce this consistently and so we only can disable a
check in this case.

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911572 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing ClassCastException, but it was possible
to trigger one here with a specially crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61317

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911565 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid causing StackOverflow, but it was possible
to trigger one here with a specially crafted input-file.

This puts a limit on the number of nested properties in place
and logs a warning when the StyleSheet is not fully parsed.

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61252

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911563 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing ClassCastException, but it was possible
to trigger one here with a specially crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61276

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911536 13f79535-47bb-0310-9956-ffa450edef68

We try to generally avoid overly large allocations in places
where arrays are allocated. 

We add one more such check for pictures in HSLF.

We might need to increase the used value of 10MB if users report 
larger files being used frequently. 

Overriding this check via IOUtils is possible.

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911525 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing NullPointerException, but it was possible
to trigger one here with a specially crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61266

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911523 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing ClassCastException, but it was possible
to trigger one here with a specially crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61259

Also fix handling of NullPointerException

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911517 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing ClassCastException, but it was possible
to trigger one here with a specially crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61242

Also enhance output of some test-failures and allow an empty exception message

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911515 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing AssertionError to be triggered by input data, but it was possible
to trigger one here with a specially crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61251

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911514 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing ClassCastException, but it was possible
to trigger one here with a specially crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61243

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911507 13f79535-47bb-0310-9956-ffa450edef68

Add exception details and fix expected exceptions to make tests run again

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911503 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing ClassCastException, but it was possible
to trigger one here with a specially crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61249

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911501 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911495 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing ClassCastException, but it was possible
to trigger one here with a specially crafted input-file

Also rework test a bit to use try-with-resources and proper formatting

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61221

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911494 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing ClassCastException but it was possible
to trigger one here with a specially crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61162

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911459 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1901996 13f79535-47bb-0310-9956-ffa450edef68

Add a sample document from fuzzing which contains invalid/oversized values

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1899749 13f79535-47bb-0310-9956-ffa450edef68

This changes the expected exception of some test-files

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1897319 13f79535-47bb-0310-9956-ffa450edef68

Use large allocation-detection here as well,
otherwise some documents can try to allocate too much memory.

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1896744 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1891729 13f79535-47bb-0310-9956-ffa450edef68

To adhere to the JavaDoc of the POITextExtractor interface which does not document a
possible null return.

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1889205 13f79535-47bb-0310-9956-ffa450edef68

Pictures can now be edited by calling HSLFPictureData#setData(byte[]). The byte[] should contain the image data as an image viewer might read it.

To enable this functionality, a tighter coupling between the EscherBSERecords of the slideshow and the HSLFPictureData was required. This ensures that changes in image data size are accurately recorded in the records.

In the course of coupling the records and the HSLFPictureData, various scenarios arose where a mapping of records to pictures was non-trivial. Accordingly, the HSLFSlideShowImpl#matchPicturesAndRecords(...) function was added to perform a more sophisticated matching pass. This function is heavily exercised by org.apache.poi.hslf.usermodel.TestBugs.testFile[5] and PPTX2PNG.render[2], as well as the new TestPictures#testSlideshowWithIncorrectOffsets().

Closes #225

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1887017 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1885625 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1885603 13f79535-47bb-0310-9956-ffa450edef68

Refactor TestAllFiles to provide an API for mass testing

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1885576 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1885549 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1885538 13f79535-47bb-0310-9956-ffa450edef68