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Commit Graph

361 Commits

Author SHA1 Message Date
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
Jay Berkenbilt
ad8081daf5 Fix fuzz issue 15442 (overflow checking in BufferInputSource) 2019-08-27 11:26:25 -04:00
Jay Berkenbilt
5da146c8b5 Track separately whether password was user/owner (fixes #159) 2019-08-24 11:01:19 -04:00
Jay Berkenbilt
2794bfb1a6 Add flags to control zlib compression level (fixes #113) 2019-08-23 20:34:21 -04:00
Jay Berkenbilt
dac0598b94 Add ability to set zlib compression level globally 2019-08-23 20:34:21 -04:00
Jay Berkenbilt
3f1ab64066 Pass offset and length to ParserCallbacks::handleObject 2019-08-22 22:54:29 -04:00
Jay Berkenbilt
4b2e72c4cd Test for direct, rather than resolved nulls in parser
Just because we know an indirect reference is null, doesn't mean we
shouldn't keep it indirect.
2019-08-22 17:55:16 -04:00
Jay Berkenbilt
4b674b42e4 Mention name tokens in TokenFilter comments 2019-08-22 17:55:16 -04:00
Jay Berkenbilt
225cd9dac2 Protect against coding error of re-entrant parsing 2019-08-22 17:55:16 -04:00
Jay Berkenbilt
42d396f1dd Handle invalid name tokens symmetrically for PDF < 1.2 (fixes #332) 2019-08-19 19:48:27 -04:00
Jay Berkenbilt
e5f504b6c5 Use SparseOHArray in QPDF_Array 2019-08-17 23:02:41 -04:00
Jay Berkenbilt
e83f3308fb SparseOHArray 2019-08-17 23:02:41 -04:00
Jay Berkenbilt
88c1956705 Update comment in PointerHolder 2019-07-13 21:34:46 -04:00
Thorsten Schöning
8f06da7534 Change list to vector for outline helpers (fixes #297)
This change works around STL problems with Embarcadero C++ Builder
version 10.2, but std::vector is more common than std::list in qpdf,
and this is a relatively new API, so an API change is tolerable.

Thanks to Thorsten Schöning <6223655+ams-tschoening@users.noreply.github.com>
for the fix.
2019-07-03 20:08:47 -04:00
Jay Berkenbilt
04f45cf652 Treat all linearization errors as warnings
This also reverts the addition of a new checkLinearization that
distinguishes errors from warnings. There's no practical distinction
between what was considered an error and what was considered a
warning.
2019-06-23 13:45:45 -04:00
Jay Berkenbilt
6c39aa8763 In shippable code, favor smart pointers (fixes #235)
Use PointerHolder in several places where manually memory allocation
and deallocation were being used. This helps to protect against memory
leaks when exceptions are thrown in surprising places.
2019-06-22 16:57:52 -04:00
Jay Berkenbilt
85a3f95a89 qpdf: exit 3 for linearization warnings without errors (fixes #50) 2019-06-22 16:57:51 -04:00
Jay Berkenbilt
1bde5c68a3 Add QUtil::read_file_into_memory
This code was essentially duplicated between test_driver and
standalone_fuzz_target_runner.
2019-06-22 10:14:25 -04:00
Jay Berkenbilt
658b5bb3be QPDFWriter: clean up overloaded functions
In a small number of cases, it makes sense to replace an overloaded
function with a function that takes a default argument. We can do this
now because we've already broken binary compatibility since the last
release.
2019-06-22 10:13:27 -04:00
Jay Berkenbilt
79f6b4823b Convert remaining public classes to use Members pattern
Have classes contain only a single private member of type
PointerHolder<Members>. This makes it safe to change the structure of
the Members class without breaking binary compatibility. Many of the
classes already follow this pattern quite successfully. This brings in
the rest of the class that are part of the public API.
2019-06-22 10:13:27 -04:00
Jay Berkenbilt
864a546af6 Build with -fvisibility=hidden when supported 2019-06-21 22:29:31 -04:00
Jay Berkenbilt
45dac410b5 Remove broken QPDFTokenizer::expectInlineImage 2019-06-21 22:29:31 -04:00
Jay Berkenbilt
25dd3c6750 Remove QPDF::copyForeignObject with unused parameter 2019-06-21 22:29:31 -04:00
Jay Berkenbilt
c6cfd64503 Rename QUtil::strcasecmp to QUtil::str_compare_nocase (fixes #242) 2019-06-21 22:29:31 -04:00
Jay Berkenbilt
d71f05ca07 Fix sign and conversion warnings (major)
This makes all integer type conversions that have potential data loss
explicit with calls that do range checks and raise an exception. After
this commit, qpdf builds with no warnings when -Wsign-conversion
-Wconversion is used with gcc or clang or when -W3 -Wd4800 is used
with MSVC. This significantly reduces the likelihood of potential
crashes from bogus integer values.

There are some parts of the code that take int when they should take
size_t or an offset. Such places would make qpdf not support files
with more than 2^31 of something that usually wouldn't be so large. In
the event that such a file shows up and is valid, at least qpdf would
raise an error in the right spot so the issue could be legitimately
addressed rather than failing in some weird way because of a silent
overflow condition.
2019-06-21 13:17:21 -04:00
Jay Berkenbilt
f40ffc9d63 Pl_Flate: constructor's out_bufsize is now unsigned int
This is the type we need for the underlying zlib implementation.
2019-06-21 13:17:21 -04:00
Jay Berkenbilt
da30764bce Change QPDFObjectHandle::pipeStreamData's encode_flags type
Change from unsigned long to int since we pass enumerated type values
to this field.
2019-06-21 13:17:21 -04:00