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Commit Graph

26 Commits

Author SHA1 Message Date
Jay Berkenbilt
837dcf8fc2 Don't call assert while checking linearization data (fixes #209, #231)
Instead of calling assert for problems found during checking
linearization data, throw an exception which is later caught and
issued as an error. Ideally we would handle errors more robustly, but
this is still a significant improvement.
2019-01-04 11:55:42 -05:00
Jay Berkenbilt
a8c93bd324 Push QPDF member variables into a nested class
Pushing member variables into a nested class enables addition of new
member variables without breaking binary compatibility.
2017-08-21 21:35:11 -04:00
Jay Berkenbilt
a11549a566 Detect loops in /Pages structure
Pushing inherited objects to pages and getting all pages were both
prone to stack overflow infinite loops if there were loops in the
Pages dictionary. There is a general weakness in the code in that any
part of the code that traverses the Pages structure would be prone to
this and would have to implement its own loop detection. A more robust
fix may provide some general method for handling the Pages structure,
but it's probably not worth doing.

Note: addition of *Internal2 private functions was done rather than
changing signatures of existing methods to avoid breaking
compatibility.
2015-02-21 19:47:11 -05:00
Jay Berkenbilt
ac9c1f0d56 Security: replace operator[] with at
For std::string and std::vector, replace operator[] with at.  This was
done using an automated process.  See README.hardening for details.
2013-10-18 10:45:14 -04:00
Jay Berkenbilt
16051788ed Handle /Outlines dictionary being a direct object
Even though this case is not valid according to the spec, it has been
seen, and caused an internal error.
2013-06-14 21:36:04 -04:00
Jay Berkenbilt
96eb965115 Use QPDFObjectHandle::getObjGen() where appropriate
In internal code and examples, replace calls to getObjectID() and
getGeneration() with calls to getObjGen() where possible.
2013-06-14 14:58:09 -04:00
Jay Berkenbilt
d88231e01e Promote QPDF::ObjGen to top-level object QPDFObjGen 2013-06-14 14:58:08 -04:00
Jay Berkenbilt
30027481f7 Remove all old-style casts from C++ code 2013-03-04 16:45:16 -05:00
Jay Berkenbilt
04c203ae06 Eliminate flattenScalarReferences 2012-12-31 05:36:48 -05:00
Jay Berkenbilt
316328704b Windows compilation fixes 2012-07-21 20:51:56 -04:00
Jay Berkenbilt
e7b8f297ba Support copying objects from another QPDF object
This includes QPDF::copyForeignObject and supporting foreign objects
as arguments to addPage*.
2012-07-11 15:54:33 -04:00
Tobias Hoffmann
39bbaa86e3 Build this->all_pages while traversing with pushInheritedAttributesToPage 2012-07-07 17:45:10 -04:00
Tobias Hoffmann
abb53ac369 Limited inheritance to the attributes explicitly listed in the PDF spec
Previous versions of qpdf incorrectly passed arbitrary objects from
/Pages objects down to individual pages in direct contradition with
the PDF specification.  These are now left in /Pages.  When
intermediate /Pages nodes are being discarded as when the /Pages tree
is being flattened, a warning is issued when unknown keys are
encountered.
2012-07-04 23:04:55 -04:00
Tobias Hoffmann
7770a1b036 Added public method QPDF::pushInheritedAttributesToPage
Refactored optimizePagesTree to pushInheritedAttributesToPage and made
public
2012-07-04 16:24:03 -04:00
Jay Berkenbilt
a0768e4190 Add QPDF::emptyPDF() and pdf_from_scratch test code 2012-06-21 23:09:05 -04:00
Jay Berkenbilt
df493c352f Refactor optimizePagesTree
Split optimizePagesTree into a simpler top-level routine and a
recursive internal routine.
2012-06-21 15:01:02 -04:00
Jay Berkenbilt
3b413ca87c Fix typo in comment 2012-06-21 15:00:58 -04:00
Jay Berkenbilt
fbe68d63f0 fix doc comment 2012-06-21 10:59:33 -04:00
Jay Berkenbilt
ce8b1ba6a5 convert file to a PointerHolder<InputSource> so it could be either a file or a buffer; also fix a bug in BufferInputSource::seek
git-svn-id: svn+q:///qpdf/trunk@1030 71b93d88-0707-0410-a8cf-f5a4172ac649
2010-09-24 19:10:08 +00:00
Jay Berkenbilt
bf75e208e9 eliminate extraneous allocations by not calling makeDirect when we
know an object is already direct


git-svn-id: svn+q:///qpdf/trunk@972 71b93d88-0707-0410-a8cf-f5a4172ac649
2010-06-05 21:00:05 +00:00
Jay Berkenbilt
218900d2c3 flatten scalar references for unreferenced objects
git-svn-id: svn+q:///qpdf/trunk@946 71b93d88-0707-0410-a8cf-f5a4172ac649
2010-03-27 15:42:17 +00:00
Jay Berkenbilt
3f8c4c2736 categorize all error messages and include object information if available
git-svn-id: svn+q:///qpdf/trunk@829 71b93d88-0707-0410-a8cf-f5a4172ac649
2009-10-19 23:09:19 +00:00
Jay Berkenbilt
44cbd3d4b4 do DLL_EXPORT only in header files and only at the class or top-level function level
git-svn-id: svn+q:///qpdf/trunk@796 71b93d88-0707-0410-a8cf-f5a4172ac649
2009-10-12 01:15:55 +00:00
Jay Berkenbilt
f3d7c26de1 removed qexc; non-compatible ABI change
git-svn-id: svn+q:///qpdf/trunk@709 71b93d88-0707-0410-a8cf-f5a4172ac649
2009-09-26 18:36:04 +00:00
Jay Berkenbilt
1e74c03acd stick DLL_EXPORT in front of every public method of every public class
git-svn-id: svn+q:///qpdf/trunk@688 71b93d88-0707-0410-a8cf-f5a4172ac649
2009-08-06 19:00:25 +00:00
Jay Berkenbilt
9a0b88bf77 update release date to actual date
git-svn-id: svn+q:///qpdf/trunk@599 71b93d88-0707-0410-a8cf-f5a4172ac649
2008-04-29 12:55:25 +00:00