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240 Commits

Author SHA1 Message Date
Jay Berkenbilt 04745320d6 Prepare 10.5.0 release 2021-12-20 14:51:46 -05:00
Jay Berkenbilt 720ce9e8f3 Improve testing and error handling around operating before processing 2021-11-29 07:42:36 -05:00
Jay Berkenbilt ac17308cf6 Initialize QPDF::Members::file (fixes #584) 2021-11-29 07:16:34 -05:00
Jay Berkenbilt ce7db05d22 Prepare 10.4.0 release 2021-11-16 15:44:09 -05:00
Jay Berkenbilt f45dacf4cb Make recovery logic flexible about where objects end (fixes #573) 
Don't assume endobj is at the beginning of the line. This means we are
looking at tokens for every line, but the odds of n n obj appearing in
the middle of the object are likely much lower than endobj not being
at the beginning of the line or missing entirely. This will probably
have a negative impact on recovery time for very large files.
Hopefully it will be worth it.
 2021-11-07 15:27:22 -05:00
Jay Berkenbilt bddebdb0ea Prepare 10.3.2 release 2021-05-08 10:41:14 -04:00
Jay Berkenbilt 3f05429cc5 Prepare 10.3.1 release 2021-03-11 12:59:41 -05:00
Jay Berkenbilt dc65b88457 Prepare 10.3.0 release 2021-03-05 06:15:48 -05:00
Jay Berkenbilt 1bb209a9bf Add QPDF::numWarnings 2021-03-03 17:05:49 -05:00
Jay Berkenbilt a4d6589ff2 Have QPDFObjectHandle notice when replaceObject was called 
This results in a performance penalty of 1% to 2% when replaceObject
and swapObjects are never called and a somewhat larger penalty if they
are called, but it's worth it to avoid very confusing behavior as
discussed in depth in qpdf#507.
 2021-02-25 07:32:46 -05:00
Jay Berkenbilt b5e937397c Prepare 10.2.0 release 2021-02-23 10:41:58 -05:00
Jay Berkenbilt 92fbc6fdf5 QPDFObjectHandle::copyStream 2021-02-21 06:36:30 -05:00
Jay Berkenbilt 60afe4142e Refactor: separate copyStreamData from replaceForeignIndirectObjects 2021-02-21 06:36:30 -05:00
Jay Berkenbilt e076c9bf08 Remove erroneous handling of /EFF for stream decryption 
I thought /EFF was supposed to be used as a default for decrypting
embedded file streams, but actually it's supposed to be advice to a
conforming writer about handling new ones. This makes sense since the
findAttachmentStreams code, which is not actually needed, was never
right.
 2021-02-06 17:08:41 -05:00
Jay Berkenbilt ac2b3b96e1 Make wrong object stream type a warning 2021-02-06 14:29:11 -05:00
Jay Berkenbilt 8ed3e8c79b NNTree: rework iterators to be more memory efficient 
Keep a std::pair internal to the iterators so that operator* can
return a reference and operator-> can work, and each can work without
copying pairs of objects around.
 2021-01-26 09:12:23 -05:00
Jay Berkenbilt 63e5cb533d Use new QPDF{Name,Number}TreeObjectHelper API 2021-01-24 03:27:28 -05:00
Jay Berkenbilt ba814703fb Use QPDFNameTreeObjectHelper's iterator directly 2021-01-24 03:25:11 -05:00
Jay Berkenbilt fc88837d4b Treat /EmbeddedFiles as a proper name tree 
If we ever had an encrypted file with different filters for
attachments and either the /EmbeddedFiles name tree was deep or some
of the file specs didn't have /Type, we would have overlooked those as
attachment streams. The code now properly handles /EmbeddedFiles as a
name tree.
 2021-01-11 10:50:44 -05:00
Jay Berkenbilt 6fe7b704c7 Warn rather than segv on access after closing input source (fixes #495) 2021-01-06 10:11:34 -05:00
Jay Berkenbilt 0fed040392 Prepare version 10.1.0 2021-01-04 16:59:55 -05:00
Jay Berkenbilt 39bfa01307 Implement user-provided stream filters 
Refactor QPDF_Stream to use stream filter classes to handle supported
stream filters as well.
 2020-12-28 12:58:19 -05:00
Jay Berkenbilt 78b9d6bfd4 Prepare 10.0.4 release 2020-11-21 13:50:02 -05:00
Jay Berkenbilt 47f4ebcdac Ignore unused field in xref entry, avoiding range error (fixes #482) 2020-11-04 07:46:46 -05:00
Jay Berkenbilt fbe40b800d Prepare 10.0.3 release 2020-10-31 13:47:03 -04:00
Jay Berkenbilt ffe6af6f77 Add comments explaining the foreign object copying code 
These are the comments I would have liked to have been able to read
while fixing #449 and #478.
 2020-10-31 12:14:26 -04:00
Jay Berkenbilt 96767fb104 Fix foreign stream copying bug (fixes #478) 
This reverts an incorrect fix to #449 and codes it properly. The real
problem was that we were looking at the local dictionaries rather than
the foreign dictionaries when saving the foreign stream data. In the
case of direct objects, these happened to be the same, but in the case
of indirect objects, the object references could be pointing anywhere
since object numbers don't match up between the old and new files.
 2020-10-31 12:14:26 -04:00
Jay Berkenbilt da7540794a Prepare 10.0.2 release 2020-10-27 11:57:48 -04:00
Jay Berkenbilt bcea54fcaa Revert removal of unreadCh change for performance 
Turns out unreadCh is much more efficient than seek(-1, SEEK_CUR).
Update comments and code to reflect this.
 2020-10-27 11:57:48 -04:00
Jay Berkenbilt 8a11feacc3 Avoid leak by resolving object streams more than once (fuzz issue 23642) 2020-10-22 15:39:36 -04:00
Jay Berkenbilt 30bb4c64ee Minor code cleanup 
* Return rather than exiting from realmain in qpdf.cc
* Remove extraneous blank line
* Don't assign temporary to const reference
 2020-10-22 15:39:36 -04:00
Jay Berkenbilt 956c8f6432 Obscure bug fix copying foreign streams in special cases (fixes #449) 
Specifically, if a stream had its stream data replaced and had
indirect /Filter or /DecodeParms, it would result in non-silent loss
of data and/or internal error.
 2020-10-21 19:23:23 -04:00
Jay Berkenbilt 98f6c00dad Protect numeric conversion against user's locale (fixes #459) 2020-10-21 16:42:51 -04:00
Jay Berkenbilt bed165c9fc Stop using InputSource::unreadCh 2020-10-18 07:43:05 -04:00
Dean Scarff 153060a0c5 Check integer overflow in resolveObjectsInStream 
Fixes a crash found by fuzzing.
 2020-10-16 20:09:24 -04:00
Jay Berkenbilt 821a701851 Prepare 10.0.1 release 2020-04-09 11:48:26 -04:00
Jay Berkenbilt 1e629c278a Prepare 10.0.0 release 2020-04-06 11:30:15 -04:00
Jay Berkenbilt 893d38b87e Allow propagation of errors and retry through StreamDataProvider 
StreamDataProvider::provideStreamData now has a rich enough API for it
to effectively proxy to pipeStreamData.
 2020-04-05 20:07:13 -04:00
Dean Scarff c5c1a028cd Use deterministic assignments for unique_id 
Fixes qpdf/qpdf#419
 2020-04-04 08:29:28 -04:00
Jay Berkenbilt 52a2e95dd5 Prepare 9.1.1 release 2020-01-26 18:49:04 -05:00
Jay Berkenbilt 9b0c6022d7 Prepare 9.1.0 release 2019-11-16 22:29:54 -05:00
Jay Berkenbilt 5e6dfc938e Prepare 9.1.rc1 release 2019-11-09 22:00:53 -05:00
Jay Berkenbilt 9094fb1f8e Fix two additional fuzz test cases 2019-11-03 18:59:12 -05:00
Masamichi Hosoda 46ac3e21b3 Add QPDF::getXRefTable() 2019-10-22 16:16:16 -04:00
Masamichi Hosoda 06b818dcd3 Exclude signature dictionary from compressible objects 
It seems better not to compress signature dictionaries. Various PDF
digital signing tools, including Adobe Acrobat Reader DC, do not
compress signature dictionaries.

Table 8.93 "Entries in a signature dictionary" in PDF 1.5 reference
describes that /ByteRange in the signature dictionary shall be used to
describe a digest that does not include the signature value
(/Contents) itself.

The byte ranges cannot be determined if the dictionary is compressed.
 2019-10-22 16:16:16 -04:00
Jay Berkenbilt 3094955dee Prepare 9.0.2 release 2019-10-12 19:37:40 -04:00
Jay Berkenbilt 4ea940b03c Prepare 9.0.1 release 2019-09-20 07:38:18 -04:00
Jay Berkenbilt bb83e65193 Fix fuzz issue 16953 (overflow checking in xref stream index) 2019-09-17 19:48:47 -04:00
Jay Berkenbilt 5462dfce31 Prepare 9.0.0 release 2019-08-31 20:07:36 -04:00
Jay Berkenbilt babd12c9b2 Add methods QPDF::anyWarnings and QPDF::closeInputSource 2019-08-31 15:51:20 -04:00