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886 Commits

Author SHA1 Message Date
Jay Berkenbilt d7ffdfa994 Add optional conflict detection to mergeResources 
Also improve behavior around direct vs. indirect resources.
 2021-03-04 15:08:36 -05:00
Jay Berkenbilt e17585c2d2 Remove unreferenced: ignore names that are not Fonts or XObjects 
Converted ResourceFinder to ParserCallbacks so we can better detect
the name that precedes various operators and use the operators to sort
the names into resource types. This enables us to be smarter about
detecting unreferenced resources in pages and also sets the stage for
reconciling differences in /DR across documents.
 2021-03-03 17:05:49 -05:00
Jay Berkenbilt a15ec6967d Enhancements to ParserCallbacks 2021-03-03 17:05:49 -05:00
Jay Berkenbilt 1bb209a9bf Add QPDF::numWarnings 2021-03-03 17:05:49 -05:00
Jay Berkenbilt 37fcc5ff71 Create ResourceFinder from NameWatcher in QPDFPageObjectHelper 2021-03-03 17:05:49 -05:00
Jay Berkenbilt b444ab3352 Fix typos in coverage cases 2021-03-03 17:05:49 -05:00
Jay Berkenbilt fa2516df71 Fix behavior for finding /Q, /DA, and /DR for form fields 
If not found in the field hierarchy, /Q and /DA are supposed to be
looked up in the document-level form dictionary. /DR is supposed to
only come from the document dictionary.
 2021-03-03 17:05:19 -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 ec6719fd25 Always call dereference() before querying obj pointer 2021-02-25 07:31:26 -05:00
Jay Berkenbilt b5e937397c Prepare 10.2.0 release 2021-02-23 10:41:58 -05:00
Jay Berkenbilt 1886673d7e Spell check 2021-02-23 10:38:05 -05:00
Jay Berkenbilt 9e00be7ffa Remove warning that gives false positives in some normal cases 2021-02-23 08:26:21 -05:00
Jay Berkenbilt be3a8c0e7a Keep only referenced form fields in --pages 2021-02-23 08:26:21 -05:00
Jay Berkenbilt 83216e640c Preserve form fields when splitting pages (fixes #340) 2021-02-22 18:42:06 -05:00
Jay Berkenbilt 1f35ec9988 Add methods for copying form fields 2021-02-22 18:42:06 -05:00
Jay Berkenbilt 8e8c0d8290 Add new placeFormXObject that takes a matrix reference 2021-02-22 18:42:06 -05:00
Jay Berkenbilt 61d41e2e88 Add copyAnnotations, use with overlay/underlay (fixes #395) 2021-02-22 18:42:06 -05:00
Jay Berkenbilt 7b3cbacf5d Change from QPDF{Array,Dict}Items to aitems() and ditems() 2021-02-22 11:05:39 -05:00
Jay Berkenbilt a9ae8cadc6 Add transformAnnotations and fix flattenRotations to use it 2021-02-21 17:13:09 -05:00
Jay Berkenbilt a76decd2d5 Add QPDFObjGen::unparse 2021-02-21 16:21:52 -05:00
Jay Berkenbilt 7540d2082a Explicitly override inherited rotate in flattenRotations 2021-02-21 14:58:45 -05:00
Jay Berkenbilt e899926e0d Use QPDFMatrix inside flattenRotations 2021-02-21 14:58:45 -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 15269f36d8 addFormField: update cache rather than invalidating 2021-02-21 06:36:30 -05:00
Jay Berkenbilt 901f1a788c Enhance QPDFMatrix API 2021-02-21 06:36:30 -05:00
Jay Berkenbilt 05eb5826d8 Fix isPagesObject and isPageObject 
There are lots of things with /Kids that are not pages. Repair the
pages tree, then do a reliable check.
 2021-02-20 19:42:41 -05:00
Jay Berkenbilt 35dd11f356 Allow --rotate=0 2021-02-20 16:29:34 -05:00
Jay Berkenbilt 71e8627285 Add const versions of QPDFMatrix::transform* 2021-02-19 18:35:19 -05:00
Jay Berkenbilt de8929a41c Add QPDFAcroFormDocumentHelper::addFormField 2021-02-18 12:25:48 -05:00
Jay Berkenbilt 5cec6b4c3d Add QPDFPageObjectHelper::getMatrixForFormXObjectPlacement 2021-02-18 12:25:48 -05:00
Jay Berkenbilt 0765872295 Form field for non-widget just returns null 2021-02-18 10:25:07 -05:00
Jay Berkenbilt 0b1623d07d Add QUtil::path_basename 2021-02-18 09:59:03 -05:00
Jay Berkenbilt a773f4c71d Add QPDFObjectHandle::parse for strings with context 2021-02-15 11:33:03 -05:00
Jay Berkenbilt 7eb903d9aa Use functional replaceStreamData 2021-02-14 14:42:24 -05:00
Jay Berkenbilt efbb21673c Add functional versions of QPDFObjectHandle::replaceStreamData 
Also fix a bug in checking consistency of length for stream data
providers. Length should not be checked or recorded if the provider
says it failed to generate the data.
 2021-02-14 14:42:24 -05:00
Jay Berkenbilt e2593e2efe Move QPDFMatrix into the public API 2021-02-13 02:30:00 -05:00
Jay Berkenbilt 07f40bd254 QUtil::double_to_string: trim trailing zeroes with option to disable 2021-02-13 02:30:00 -05:00
Jay Berkenbilt 8fbc8579f2 Allow zone information to be omitted from timestamp strings 2021-02-11 14:26:55 -05:00
Jay Berkenbilt df067c9ab6 Add autoconf test for localtime_r 2021-02-11 14:26:55 -05:00
Jay Berkenbilt 1b3f84f967 Require C++14 instead of C++11 2021-02-10 16:27:58 -05:00
Jay Berkenbilt 9fcf61b2f6 Fix loop in QPDFOutlineDocumentHelper (fuzz issue 30507) 2021-02-10 16:27:44 -05:00
Jay Berkenbilt 4d1f2fdcac Update to new name/number tree API 2021-02-10 15:46:20 -05:00
Jay Berkenbilt 1f4771cd0d Minor clean up of Windows headers 2021-02-10 07:36:18 -05:00
Jay Berkenbilt ad34b9c278 Implement helpers for file attachments 2021-02-10 06:57:37 -05:00
Jay Berkenbilt bf0e6eb302 Add QUtil methods for dealing with PDF timestamp strings 2021-02-09 17:50:24 -05:00
Jay Berkenbilt bfbeec5497 Make newly created name/number trees indirect objects 2021-02-08 06:49:56 -05:00
Jay Berkenbilt 553ac7f353 Add QUtil::pipe_file and QUtil::file_provider 2021-02-07 19:41:34 -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 faa2e3ddfd Handle older PDFs whose form XObjects inherit resources (fixes #494) 
When removing unreferenced resources, notice if a page (recursively)
contains a form XObject with unreferenced resources, and count any
such resources as referenced by the page.
 2021-02-02 18:06:05 -05:00
Jay Berkenbilt 81025e4998 Refactor removal of unreferenced resources 
Refactor in preparation for resolving unresolved resources in form
xobjects from page.
 2021-02-02 18:06:05 -05:00
Jay Berkenbilt 9c9ce64eec Handle strings in inline image dictionaries 
We need to use token.getRawValue, not token.getValue
 2021-01-31 07:50:03 -05:00
Jay Berkenbilt 178f995fc2 Recover from exceptions during filtering for inline images 2021-01-31 07:49:08 -05:00
Jay Berkenbilt 4ae93a73c5 Improve memory safety of dict/array iterators 2021-01-31 07:16:03 -05:00
Jay Berkenbilt de0b11fc47 Add C++ iterator API around array and dictionary objects 2021-01-30 15:15:23 -05:00
Jay Berkenbilt 35e7859bc7 Make QPDFObjectHandle::is* return false for uninitialized objects 2021-01-29 15:46:54 -05:00
Jay Berkenbilt 50decc9bb8 name/number tree: explicitly declare default destructors 2021-01-29 15:46:54 -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 e7e20772ed name/number trees: remove 2021-01-26 09:12:23 -05:00
Jay Berkenbilt 5816fb44b8 name/number trees: insertAfter 2021-01-25 15:39:10 -05:00
Jay Berkenbilt 16a9bb3f6f name/number trees: newEmpty, increment/decrement end() 2021-01-25 15:39:10 -05:00
Jay Berkenbilt b5614f611d Implement repair and insert for name/number trees 2021-01-24 19:31:45 -05:00
Jay Berkenbilt 04edfe9fad QPDFObjectHandle::newUnicodeString to uses UTF-16 only when needed 
Use the first of ASCII, PDFDocEncoding, or UTF-16 that is capable of
encoding the string.
 2021-01-24 03:27:28 -05:00
Jay Berkenbilt 63e5cb533d Use new QPDF{Name,Number}TreeObjectHelper API 2021-01-24 03:27:28 -05:00
Jay Berkenbilt d61ffb65d0 Add new constructors for name/number tree helpers 
Add constructors that take a QPDF object so we can issue warnings and
create new indirect objects.
 2021-01-24 03:27:26 -05:00
Jay Berkenbilt ba814703fb Use QPDFNameTreeObjectHelper's iterator directly 2021-01-24 03:25:11 -05:00
Jay Berkenbilt 5f0708418a Add iterators to name/number tree helpers 2021-01-24 03:22:59 -05:00
Jay Berkenbilt 4a1cce0a47 Reimplement name and number tree object helpers 
Create a computationally and memory efficient implementation of name
and number trees that does binary searches as intended by the data
structure rather than loading into a map, which can use a great deal
of memory and can be very slow.
 2021-01-24 03:22:51 -05:00
Jay Berkenbilt 6226b69dba Add warn() to QPDF's public API 2021-01-16 18:41:53 -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 18340b8835 Spell check 2021-01-04 16:26:58 -05:00
Jay Berkenbilt dc92574c10 Fix some pipelines to be safe if downstream write fails (fuzz issue 28262) 2021-01-04 15:17:35 -05:00
Jay Berkenbilt ba6b6aacf1 Fix outdated comment 2021-01-03 15:59:49 -05:00
Jay Berkenbilt 3be58f49e5 Make more QPDFPageObjectHelper methods work with form XObject 2021-01-02 14:08:53 -05:00
Jay Berkenbilt 98da4fd835 Externalize inline images now includes form XObjects 2021-01-02 14:08:17 -05:00
Jay Berkenbilt bedf35d6a5 Bug fix: avoid extraneous pipeline finish calls with multiple contents 
Avoid calling finish() multiple times on the pipeline passed to
pipeContentStreams. This commit also fixes a bug in which qpdf was not
exiting with the proper exit status if warnings found while splitting
pages; this was exposed by a test case that changed.
 2021-01-02 14:08:17 -05:00
Jay Berkenbilt a139d2b36d Add several methods for working with form XObjects (fixes #436) 
Make some more methods in QPDFPageObjectHelper work with form
XObjects, provide forEach methods to walk through nested form
XObjects, possibly recursively. This should make it easier to work
with form XObjects from user code.
 2021-01-02 12:29:31 -05:00
Jay Berkenbilt 6154221edb QPDFPageObjectHelper: filterPageContents -> filterContents + form XObject 2021-01-02 11:33:36 -05:00
Jay Berkenbilt 63ea46193d QPDFPageObjectHelper: getPageImages -> getImages 2021-01-02 11:33:36 -05:00
Jay Berkenbilt e7a8554563 QPDFPageObjectHelper::getPageImages: support form XObjects 2021-01-02 11:33:36 -05:00
Jay Berkenbilt 1562d34c09 Add QPDFObjectHandle::isFormXObject 2021-01-01 07:36:10 -05:00
Jay Berkenbilt c9271335fa Add QPDFPageObjectHelper::flattenRotation and --flatten-rotation 2020-12-30 13:03:55 -05:00
Jay Berkenbilt 12ecd2019a Add QPDFObjectHandle::setFilterOnWrite 2020-12-28 12:58:19 -05:00
Jay Berkenbilt 3f9191a344 Add ostream << for QPDFObjGen 2020-12-28 12:58:19 -05:00
Jay Berkenbilt 858c7b89bc Let optimize filter stream parameters instead of making them direct 
Also removes preclusion of stream references in stream parameters of
filterable streams and reduces write times by about 8% by eliminating
an extra traversal of the objects.
 2020-12-28 12:58:19 -05:00
Jay Berkenbilt 1a62cce940 Restructure optimize to allow skipping parameters of filtered streams 2020-12-28 12:58:19 -05:00
Jay Berkenbilt 09027344b9 Refactor: separate code that determines whether to filter a stream 2020-12-28 12:58:19 -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 cc8895078a Add QPDFObjectHandle::makeDirect(bool allow_streams) 2020-12-26 08:48:18 -05:00
Jay Berkenbilt 573b6eb8b1 Provide qpdf write progress reporting from C API (fixes #487) 2020-12-20 14:43:24 -05:00
Jay Berkenbilt 2050977099 Add QPDFObjectHandle manipulation to C API 2020-11-28 19:48:07 -05:00
Jay Berkenbilt 78b9d6bfd4 Prepare 10.0.4 release 2020-11-21 13:50:02 -05:00
Jay Berkenbilt bd79138c84 Treat direct page as runtime rather than logic error (fuzz issue 27393) 2020-11-11 09:50:43 -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 6971f78ff6 Fix stack overflow on direct root (fuzz issue 26761) 2020-10-31 13:10:39 -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