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587 Commits

Author SHA1 Message Date
Jay Berkenbilt
feafcc4e88 C API: add several stream functions (fixes #596) 2021-12-17 13:28:11 -05:00
Jay Berkenbilt
c40f8b5329 Make object types available to C API 2021-12-17 12:38:52 -05:00
Jay Berkenbilt
fee7489ee4 Add Pl_Buffer::getMallocBuffer 2021-12-17 12:38:52 -05:00
Jay Berkenbilt
9bb6f570ec C API: add functions for working with pages (fixes #594) 2021-12-16 15:07:48 -05:00
Jay Berkenbilt
3f9d50b526 Change name of formal parameters from data to qpdf 2021-12-16 11:51:15 -05:00
Jay Berkenbilt
1c62c2a342 C API: expose functions for indirect objects (fixes #588) 2021-12-10 14:57:35 -05:00
Jay Berkenbilt
8e0b153332 Expose QPDFObjectHandle::addTokenFilter (fixes #580) 2021-12-10 13:37:07 -05:00
Jay Berkenbilt
72c10d8617 C API: overhaul error handling 
* Handle error conditions that occur when using the object handle
  interfaces. In the past, some exceptions were not correctly
  converted to errors or warnings.
* Add more detailed information to qpdf-c.h
* Make it possible to work more explicitly with uninitialized objects
 2021-12-10 12:16:02 -05:00
Jay Berkenbilt
3340dbe976 Use a specific error code for type warnings and clarify docs 2021-12-10 11:15:49 -05:00
Jay Berkenbilt
e3cc171d02 C API: qpdf_oh_is_initialized 2021-12-09 10:33:31 -05:00
Jay Berkenbilt
bef2c2222a C API: qpdf_get_last_string_length 2021-12-09 10:33:31 -05:00
Jay Berkenbilt
73d70902e0 Typos in comments 2021-12-09 10:33:31 -05:00
m-holger
0c705a882b Minor documentation updates 2021-12-09 10:24:14 -05:00
m-holger
b4fc9eb700 C-API expose new_object as qpdf_oh_new_object 2021-12-02 13:59:58 -05:00
Jay Berkenbilt
720ce9e8f3 Improve testing and error handling around operating before processing 2021-11-29 07:42:36 -05:00
m-holger
4630b8567c Ensure qpdf_oh handles returned by C-API functions are unique. 
Return new qpdf_oh from qpdf_oh_wrap_in_array when input is already an array.
Update some doc comments in qpdf-c.h.
 2021-11-19 13:31:59 +00:00
Jay Berkenbilt
750aca5b94 First increment of improving handling of weak crypto (fixes #358) 2021-11-11 12:24:15 -05:00
Jay Berkenbilt
ec09b91443 Add QIntC::range_check_subtract 2021-11-04 13:53:46 -04:00
Jay Berkenbilt
9b28933647 Check object ownership when adding 
When adding a QPDFObjectHandle to an array or dictionary, if possible,
check if the new object belongs to the same QPDF. This makes it much
easier to find incorrect code than waiting for the situation to be
detected when the file is written.
 2021-11-04 12:29:42 -04:00
Jay Berkenbilt
33a47d5c3c Make QPDF::findPage public (fixes #516) 
This was originally not public because I wanted to get rid fo the
pages cache, but I recently realized there were deep reasons not to do
that, and the author of pikepdf wanted this, so I decided to make it
public.
 2021-11-03 09:43:17 -04:00
Jay Berkenbilt
532a4f3d60 Detect recoverable but invalid zlib data streams (fixes #562) 2021-11-03 09:43:17 -04:00
Jay Berkenbilt
8971443e46 QPDF::addPage*: handle duplicate pages more robustly 2021-04-05 10:58:10 -04:00
Jay Berkenbilt
cb6e53136f QPDFAcroFormDocumentHelper: add missing analyze calls 2021-03-04 18:11:44 -05:00
Jay Berkenbilt
0b77f2cf26 Revert non-binary-compatible handleWarning change -- see TODO (ABI) 2021-03-04 15:59:46 -05:00
Jay Berkenbilt
9fb174b9e9 Major rework of handling form fields when copying pages (fixes #509) 2021-03-04 15:08:37 -05:00
Jay Berkenbilt
a2124f992c Add QPDFMatrix::operator== 2021-03-04 15:08:36 -05:00
Jay Berkenbilt
c9c711a351 Add string to deprecation warning 2021-03-04 15:08:36 -05:00
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
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
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
1886673d7e Spell check 2021-02-23 10:38:05 -05:00
Jay Berkenbilt
be3a8c0e7a Keep only referenced form fields in --pages 2021-02-23 08:26:21 -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
aa848126cb Comment about QPDFMatrix and QPDFObjectHandle::Matrix 2021-02-21 08:06:19 -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
901f1a788c Enhance QPDFMatrix API 2021-02-21 06:36:30 -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
8873466a5d Remove outdated comment from QPDFAnnotationObjectHelper.hh 2021-02-17 20:14:20 -05:00
Jay Berkenbilt
a773f4c71d Add QPDFObjectHandle::parse for strings with context 2021-02-15 11:33:03 -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
2538d84413 Explicitly deprecate old name/number tree constructors 
Use C++14 [[deprecated]] tag
 2021-02-10 16:28:00 -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
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
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
4ae93a73c5 Improve memory safety of dict/array iterators 2021-01-31 07:16:03 -05:00
Jay Berkenbilt
1fec40454e Add example of name/number trees and dictionary/array iteration 2021-01-30 15:52:16 -05:00
Jay Berkenbilt
de0b11fc47 Add C++ iterator API around array and dictionary objects 2021-01-30 15:15:23 -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
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
9ad6cfd45b Clarify qpdf_register_progress_reporter's comment 2021-01-19 08:55:23 -05:00
Jay Berkenbilt
6226b69dba Add warn() to QPDF's public API 2021-01-16 18:41:53 -05:00
Jay Berkenbilt
18340b8835 Spell check 2021-01-04 16:26:58 -05:00
Jay Berkenbilt
bf8fd41fee Update copyright to 2021 2021-01-04 16:26:58 -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
afb48d23a9 QPDFPageObjectHelper::removeUnreferencedResources works with form XObjects 2021-01-02 11:33:36 -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
4cbf32bfdb Fix typo in comment 2020-12-30 13:20:42 -05:00
Jay Berkenbilt
c9271335fa Add QPDFPageObjectHelper::flattenRotation and --flatten-rotation 2020-12-30 13:03:55 -05:00
Jay Berkenbilt
d4d7630cf5 Add pdf-custom-filter example 2020-12-28 13:03:04 -05:00
Jay Berkenbilt
ac042d16cf Add Pipeline::getNext() to DLL 2020-12-28 13:03:04 -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
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
1fb26f08ad Fix typo in comment and whitespace issue 2020-12-28 12:57:59 -05:00
Jay Berkenbilt
0675a3f61a Decide not to allow stream data providers to modify dictionary 2020-12-26 08:48:20 -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
9d64481571 Handle negative numbers in QIntC::range_check (fuzz issue 26994) 2020-11-21 13:43:04 -05:00
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
fd13fe74ef TODO and comments item for pipeContentStreams 2020-10-23 16:53:58 -04:00
Jay Berkenbilt
802de87c30 Fix outdated comment in QPDFTokenizer.hh 2020-10-23 06:39:42 -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
7f4a4df919 Add range_check method to QIntC 2020-10-22 05:48:40 -04:00
Jay Berkenbilt
24196c08cb Fix loop detection error (fuzz issue 23172) 2020-10-22 05:48:35 -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
Jay Berkenbilt
18b34a5649 InputSource::unreadCh -- only unread most recently read character 
This is all that ever worked. The test suite was trying to do
something different from ClosedFileInputSource.
 2020-10-16 17:15:39 -04:00
Jay Berkenbilt
496aacd34a Add missing QPDF_DLL_CLASS for QPDFObject (fixes #424) 
This is needed for some compilers on some platforms, notably current
versions of clang.
 2020-04-07 10:35:03 -04:00
Jay Berkenbilt
77198d5310 Delegate random number generation to crypto provider (fixes #418) 2020-04-06 11:23:02 -04:00
Jay Berkenbilt
619d294e9d Remove QUtil::srandom 2020-04-06 09:49:02 -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
Jay Berkenbilt
2100b4ce15 Allow qpdf to be built on systems without wchar_t (fixes #406) 2020-04-03 21:39:44 -04:00
Jay Berkenbilt
4f3b89991b placeFormXObject: allow control of shrink/expand (fixes #409) 2020-04-03 21:39:17 -04:00
Jay Berkenbilt
54726930df Remove redundant methods in QUtil 
This was being saved until we had to break ABI.
 2020-04-03 12:17:57 -04:00
Jay Berkenbilt
8a87a2fbee Use C++11 features to simplify QIntC 2020-04-03 12:17:57 -04:00
Jay Berkenbilt
a6f1f829db Use deleted copy/assignment (C++11) 2020-04-03 12:17:57 -04:00
Jay Berkenbilt
5806e5c60c QPDFPageObjectHelper::placeFormXObject: use std::string const& (fixes #374) 2020-04-03 12:17:57 -04:00
Jay Berkenbilt
97de12343b Performance: remove Members indirection for Pipeline 2020-04-03 12:17:57 -04:00
Jay Berkenbilt
e9eac2a245 Remove extraneous set of braces 2020-04-03 12:16:24 -04:00
Jay Berkenbilt
38afdcea7b Add QPDFObjectHandle::unsafeShallowCopy 2020-04-03 12:16:24 -04:00
Jay Berkenbilt
07afb668b1 Performance: remove indirection through Members for QPDFObject 2020-04-03 12:16:24 -04:00
Jay Berkenbilt
89f19b7099 Performance: remove Members indirection for QPDFObjectHandle 2020-04-03 12:16:24 -04:00
Jay Berkenbilt
278710fbe8 Refactor QPDFPageObjectHelper::removeUnreferencedResources() 
Refactor removeUnreferencedResources to prepare for filtering form
XObjects.
 2020-03-31 17:39:20 -04:00
Jay Berkenbilt
e5cc065598 Update copyright to 2020 2020-01-26 16:57:27 -05:00
Jay Berkenbilt
a44b5a34a0 Pull wmain -> main code from qpdf.cc into QUtil.cc 2020-01-14 11:40:51 -05:00
Jay Berkenbilt
9a398504ca Refactor QUtil::read_lines_from_file 
This commit adds the preserve_eol flags but doesn't implement EOL
preservation yet.
 2020-01-13 09:19:53 -05:00
Jay Berkenbilt
127a957aee Allow runtime inspection/override of crypto provider 2019-11-09 09:53:42 -05:00
Jay Berkenbilt
d1ffe46c04 AES_PDF: move CBC logic from pipeline to AES_PDF implementation 2019-11-09 08:18:02 -05:00
Jay Berkenbilt
c8cda4f965 AES_PDF: switch to pluggable crypto 2019-11-09 08:18:02 -05:00
Jay Berkenbilt
bb427bd117 SHA2: switch to pluggable crypto 2019-11-09 08:18:02 -05:00
Jay Berkenbilt
4287fcc002 RC4: switch to pluggable crypto 2019-11-09 08:18:02 -05:00
Jay Berkenbilt
ce8f9b6608 MD5: switch to pluggable crypto 2019-11-09 08:18:02 -05:00
Jay Berkenbilt
2de41856a0 QPDFCryptoProvider: initial implementation 2019-11-09 08:18:02 -05:00
Masamichi Hosoda
5a842792b6 Parse Contents in signature dictionary without encryption 
Various PDF digital signing tools do not encrypt /Contents value in
signature dictionary. Adobe Acrobat Reader DC can handle a PDF with
the /Contents value not encrypted.

Write Contents in signature dictionary without encryption

Tests ensure that string /Contents are not handled specially when not
found in sig dicts.
 2019-10-22 16:20:21 -04:00
Masamichi Hosoda
cdc46d78f4 Add QPDFObject::getParsedOffset() 2019-10-22 16:19:06 -04:00
Masamichi Hosoda
50b329ee9f Add QPDFWriter::getWrittenXRefTable() 2019-10-22 16:16:16 -04:00
Masamichi Hosoda
5cf4090aee Add QPDFWriter::getRenumberedObjGen() 2019-10-22 16:16:16 -04:00
Masamichi Hosoda
46ac3e21b3 Add QPDF::getXRefTable() 2019-10-22 16:16:16 -04:00
Masamichi Hosoda
5e0ba12687 Fix /Contents value representation in a signature dictionary 
Table 8.93 "Entries in a signature dictionary" in PDF 1.5 reference
describes that the value of Contents entry is a hexadecimal string
representation when ByteRange is specified.

This commit makes QPDF always uses hexadecimal strings representation
instead of literal strings for it.
 2019-10-22 16:16:16 -04:00
Jay Berkenbilt
6d81f01476 Don't assume char is signed in int conversion tests (fixes #361) 2019-09-17 12:18:09 -04:00
Jay Berkenbilt
babd12c9b2 Add methods QPDF::anyWarnings and QPDF::closeInputSource 2019-08-31 15:51:20 -04:00
Jay Berkenbilt
4fa7b1eb60 Add remove_file and rename_file to QUtil 2019-08-31 15:51:04 -04:00
Jay Berkenbilt
0787ec9620 spell check 2019-08-31 08:43:18 -04:00
Jay Berkenbilt
ba5fb69164 Make popping pipeline stack safer 
Use destructors to pop the pipeline stack, and ensure that code that
pops the stack is actually popping the intended thing.
 2019-08-27 22:27:47 -04:00