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Commit Graph

234 Commits

Author SHA1 Message Date
Jay Berkenbilt
caab1b0e16 Handle pages with no /Contents from getPageContents()
The spec allows /Contents to be omitted for pages that are blank, but
QPDFObjectHandle::getPageContents() was throwing an exception in this
case.
2014-11-14 13:43:34 -05:00
Jay Berkenbilt
4071db59aa Prepare 5.1.2 release 2014-06-07 17:16:52 -04:00
Jay Berkenbilt
3c5e602a1e Windows build (msvc): target Windows 5.0.1 (XP)
Without this, qpdf executables work only on Vista or newer.

Fixes #35
2014-06-07 17:16:50 -04:00
Jay Berkenbilt
0b2e9cb168 Example: fast split into single pages
This is faster than using qpdf --pages to do it.
2014-06-07 16:40:38 -04:00
Jay Berkenbilt
9f8aba1db7 Handle indirect stream filter/decode parameters
QPDFWriter was trying to make /Filter and /DecodeParms direct in all
cases, but there are some cases where /DecodeParms may refer to a
stream, which can't be direct. QPDFWriter doesn't actually need
/DecodeParms to be direct in that case because it won't be able to
filter the stream. Until we can handle this type of stream, just don't
make /Filter and /DecodeParms direct if we can't filter the stream
anyway.

Fixes #34
2014-06-07 16:31:03 -04:00
Jay Berkenbilt
b0a96ce6aa Fix calculation of xref stream stream columns
Fix problem: if the last object in the first part of a linearized file
had an offset that was below 65536 by less than the size of the hint
stream, the xref stream was invalid and the resulting file is not
usable.
2014-02-22 22:13:31 -05:00
Jay Berkenbilt
247d70efee Prepare 5.1.1 release 2014-01-14 15:45:35 -05:00
Jay Berkenbilt
c9a9fe9c2f Avoid traversing same object twice when copying objects
This is a performance fix.  The output is unchanged.

Fixes #28.
2013-12-26 11:51:50 -05:00
Jay Berkenbilt
0b6127558d Prepare 5.1.0 release 2013-12-17 15:26:07 -05:00
Jay Berkenbilt
235d8f28f8 Increase random data provider support
Add a method to get the current random data provider, and document and
test the method for resetting it.
2013-12-16 16:21:28 -05:00
Jay Berkenbilt
30287d2d65 Allow OS-provided secure random to be disabled 2013-12-14 15:17:36 -05:00
Jay Berkenbilt
5e3bad2f86 Refactor random data generation
Add new RandomDataProvider object and implement existing random number
generation in terms of that.  This enables end users to supply their
own random data providers.
2013-12-14 15:17:35 -05:00
Jay Berkenbilt
e9a319fb95 Allow arbitrary whitespace, not just newline, after xref
Fixes #27.
2013-12-14 15:17:23 -05:00
Jay Berkenbilt
478c05fcab Allow -DNO_GET_ENVIRONMENT to avoid GetEnvironmentVariable
If NO_GET_ENVIRONMENT is #defined at compile time on Windows, do not
call GetEnvironmentVariable.  QUtil::get_env will always return
false.  This option is not available through configure.  This was
added to support a specific user's requirements to avoid calling
GetEnvironmentVariable from the Windows API.  Nothing in qpdf outside
the test coverage system in qtest relies on QUtil::get_env.
2013-11-30 15:58:32 -05:00
Jay Berkenbilt
88c29873e5 Add /FS flag (msvc) for parallel builds 2013-11-30 15:58:32 -05:00
Jay Berkenbilt
b75b19589d Add more detail to previous ChangeLog entry 2013-11-30 15:58:32 -05:00
Jay Berkenbilt
dc9df97466 Include <algorithm> for std::min, std::max 2013-11-29 10:48:16 -05:00
Jay Berkenbilt
157c936b97 Use 8 bit per sample images in tests
In compare image tests, use the gs device tiff24nc instead of tiff12nc
since the 4 bit per sample images created by tiff12nc could sometimes
trigger a bug in tiffcmp.  Fixes #20.
2013-11-21 13:41:37 -05:00
Jay Berkenbilt
c1e39381fa Add a ChangeLog note for previous fix 2013-11-21 13:30:58 -05:00
Jay Berkenbilt
e1bd72b46c Prepare for 5.0.1 release 2013-10-18 13:51:30 -04:00
Jay Berkenbilt
a237e92445 Warn when -accessibility=n will be ignored
Also accept -accessibility=n with 256 bit keys even though it will be
ignored.
2013-10-18 10:45:15 -04:00
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
4229457068 Security: use a secure random number generator
If not available, give an error.  The user may also configure qpdf to
use an insecure random number generator.
2013-10-18 10:45:12 -04:00
Jay Berkenbilt
e19eb579b2 Replace some assertions with std::logic_error
Ideally, the library should never call assert outside of test code,
but it does in several places.  For some cases where the assertion
might conceivably fail because of a problem with the input data,
replace assertions with exceptions so that they can be trapped by the
calling application.  This commit surely misses some cases and
replaced some cases unnecessarily, but it should still be an
improvement.
2013-10-09 20:57:14 -04:00
Jay Berkenbilt
0bfe902489 Security: avoid pre-allocating vectors based on file data
In places where std::vector<T>(size_t) was used, either validate that
the size parameter is sane or refactor code to avoid the need to
pre-allocate the vector.
2013-10-09 20:57:14 -04:00
Jay Berkenbilt
10bceb552f Security: sanitize /W in xref stream
The /W array was not sanitized, possibly causing an integer overflow
in a multiplication. An analysis of the code suggests that there were
no possible exploits based on this since the problems were in checking
expected values but bounds checks were performed on actual values.
2013-10-09 20:57:07 -04:00
Jay Berkenbilt
3eb4b066ab Security: better bounds checks for linearization data
The faulty code was only used during explicit checks of linearization
data.  Those checks are not part of normal reading or writing of PDF
files.
2013-10-09 19:50:09 -04:00
Jay Berkenbilt
b097d7a81b Security: handle empty name in normalizeName 2013-10-09 19:50:09 -04:00
Jay Berkenbilt
eb1b1264b4 Security: fix potential multiplication overflow
Better sanity check inputs to bit stream reader
2013-10-09 19:50:09 -04:00
Jay Berkenbilt
c2e91d8ec3 Security: keep cur_byte pointing into bytes array 2013-10-09 19:50:07 -04:00
Jay Berkenbilt
66e63b8667 Prepare 5.0.0 release 2013-07-10 12:29:13 -04:00
Jay Berkenbilt
cee2592ed1 Change API/ABI and withdraw 4.2.0
4.2.0 was binary incompatible in spite of there being no deletions or
changes to any public methods.  As such, we have to bump the ABI and
are fixing some API breakage while we're at it.

Previous 4.3.0 target is now 5.1.0.
2013-07-10 11:30:13 -04:00
Jay Berkenbilt
f31e526d67 Prepare 4.2.0 release 2013-07-07 19:43:16 -04:00
Jay Berkenbilt
b84f57e56d Ignore broken DecodeParms for stream with no filters 2013-07-07 19:43:16 -04:00
Jay Berkenbilt
91367239fd Add --show-npages option to qpdf 2013-07-07 19:43:16 -04:00
Jay Berkenbilt
adccedc02f Allow numeric range to be omitted qpdf --pages
Detect a missing page range and assume 1-z.
2013-07-07 19:43:16 -04:00
Jay Berkenbilt
a85007cb0d Handle more broken files
Space rather than newline after xref, missing /ID in trailer for
encrypted file.  This enables qpdf to handle some files that xpdf can
handle.  Adobe reader can't necessarily handle them.
2013-06-15 12:40:01 -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
eae8370cd9 Add optional /Length key in crypt filter dictionary 2013-06-14 20:42:39 -04:00
Jay Berkenbilt
a3576a7359 Bug fix: handle generation > 0 when generating object streams
Rework QPDFWriter to always track old object IDs and QPDFObjGen
instead of int, thus not discarding the generation number.  Switch to
QPDF::getCompressibleObjGen() to properly handle the case of an old
object eligible for compression that has a generation of other than
zero.
2013-06-14 14:58:09 -04:00
Jay Berkenbilt
5039da0b91 Add QPDFObjectHandle::getObjGen()
This is safer than getObjectID() and getGeneration() for many uses.
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
f02c5f5e12 Final preparation for 4.1.0 release 2013-04-14 15:03:51 -04:00
Jay Berkenbilt
e8ddac8950 Document casting policy 2013-03-25 14:37:25 -04:00
Jay Berkenbilt
49c7681c58 Windows install: check DLL type
When copying dlls, make sure to only consider DLLs whose type matches
the type of what is loading them.
2013-03-11 14:10:37 -04:00
Jay Berkenbilt
197af341de Use ./install-sh instead of install -c 2013-03-07 11:29:56 -05:00
Jay Berkenbilt
119f2a4b68 Add method to terminate content stream parsing 2013-03-05 13:35:46 -05:00
Jay Berkenbilt
fd64959398 Favor strerror_s and fopen_s on MSVC
Make remaining calls to fopen and strerror use strerror_s and fopen_s
on MSVC.
2013-03-05 13:35:46 -05:00
Jay Berkenbilt
ac4deac187 Call QUtil::safe_fopen in place of fopen
fopen was previuosly called wrapped by QUtil::fopen_wrapper, but
QUtil::safe_fopen does this itself, which is less cumbersome.
2013-03-05 13:35:46 -05:00
Jay Berkenbilt
a51ae10b8d Remove all calls to sprintf 2013-03-05 13:35:46 -05:00
Jay Berkenbilt
8be8277613 Rewrite QUtil::int_to_string and QUtil::double_to_string
Make them safer by avoiding any internal limits and replacing sprintf
with std::ostringstream.
2013-03-04 16:45:16 -05:00
Jay Berkenbilt
a11081085b Handle warning flags better
Make --enable-werror work properly on msvc, handle extra warnings
flags for msvc in configure.ac instead of hardcoding into
make/msvc.mk, separate warnings flags into WFLAGS in autoconf.mk to
avoid duplication and to make it easier to override.
2013-03-04 16:45:15 -05:00
Jay Berkenbilt
32b62035ce Replace many calls to sprintf with QUtil::hex_encode
Add QUtil::hex_encode to encode binary data has a hexadecimal string,
and use it in place of sprintf where possible.
2013-03-04 16:45:15 -05:00
Jay Berkenbilt
6c7bf114dc Bug fix: properly handle overridden compressed objects
When caching objects in an object stream, only cache objects that
still resolve to that stream.  See Changelog mod from this commit for
details.
2013-02-23 17:51:17 -05:00
Jay Berkenbilt
7e7c93951f Do not remove libqpdf.la
Some distributions (like debian) don't want .la files to be installed,
but the responsibility for doing this should like in the packaging,
not in qpdf itself.
2013-01-31 16:16:45 -05:00
Jay Berkenbilt
a5d8783f67 Improve qpdf --check
Fix exit status for case of errors without warnings, continue after
errors when possible, add test case for parsing a file with content
stream errors on some but not all pages.
2013-01-25 11:08:50 -05:00
Jay Berkenbilt
a7e8b8c789 Have qpdf --check parse content streams
Also move writing to null and parsing of content streams out of the
wrong if block.
2013-01-24 11:47:36 -05:00
Jay Berkenbilt
bfda717749 Cosmetic changes to be closer to Adobe terminology
Change object type Keyword to Operator, and place the order of the
object types in object_type_e in the same order as they are mentioned
in the PDF specification.

Note that this change only breaks backward compatibility with code
that has not yet been released.
2013-01-23 09:38:05 -05:00
Jay Berkenbilt
913eb5ac35 Add getTypeCode() and getTypeName()
Add virtual methods to QPDFObject, wrappers to QPDFObjectHandle, and
implementations to all the QPDF_Object types.
2013-01-22 10:01:45 -05:00
Jay Berkenbilt
f81152311e Add QPDFObjectHandle::parseContentStream method
This method allows parsing of the PDF objects in a content stream or
array of content streams.
2013-01-20 15:35:39 -05:00
Jay Berkenbilt
1d88955fa6 Added new QPDFObjectHandle types Keyword and InlineImage
These object types are to facilitate content stream parsing.
2013-01-20 15:35:39 -05:00
Jay Berkenbilt
8708fd373d Prepare 4.0.1 release 2013-01-17 09:51:04 -05:00
Jay Berkenbilt
0e9949afde Update versions for 4.0.0 release 2012-12-31 11:43:27 -05:00
Jay Berkenbilt
f8306913ba Update "C" API with functions for new features 2012-12-31 10:32:32 -05:00
Jay Berkenbilt
ae1385cd8a Update ChangeLog with recent changes 2012-12-31 10:32:32 -05:00
Jay Berkenbilt
04c203ae06 Eliminate flattenScalarReferences 2012-12-31 05:36:48 -05:00
Jay Berkenbilt
7f84239cad Find PDF header anywhere in the first 1024 bytes 2012-12-25 14:43:37 -05:00
Jay Berkenbilt
739a78e200 Add Requires.private to libqpdf.pc for static linking 2012-11-20 13:57:37 -05:00
Jay Berkenbilt
f256670eba Ignore objects with offset 0 2012-11-20 13:57:37 -05:00
Jay Berkenbilt
041397fdab Allow reading from InputSource and writing to Pipeline
Allowing users to subclass InputSource and Pipeline to read and write
from/to arbitrary sources provides the maximum flexibility for users
who want to read and write from other than files or memory.
2012-09-23 17:42:26 -04:00
Jay Berkenbilt
b4dc0f072a Prepare 3.0.2 release 2012-09-06 15:47:58 -04:00
Jay Berkenbilt
c1627d0438 Add QPDFWriter::setExtraHeaderText 2012-09-06 15:31:12 -04:00
Jay Berkenbilt
fc4c82a950 Reset state in QPDF::calculateLinearizationData
This makes it possible to use two different writers to write
linearized files from the same QPDF object.
2012-09-06 15:28:16 -04:00
Jay Berkenbilt
8d2b29ef98 Fix segmentation fault with use of QPDFWriter::setOutputMemory 2012-09-06 14:39:06 -04:00
Jay Berkenbilt
59432b5c70 Prepare 3.0.1 release 2012-08-11 13:41:18 -04:00
Jay Berkenbilt
29e9c34fe3 Bug fix: let EOF resolve literal token
Previously only whitespace and comments did it.  This fix is needed
for object streams whose last object is a literal (name, integer,
real, string) not terminated by space or newline.
2012-08-11 09:29:04 -04:00
Jay Berkenbilt
511e68758c Update version to 3.0.0 2012-08-02 06:52:33 -04:00
Jay Berkenbilt
4efc915fc1 Make release entry in ChangeLog 2012-07-29 14:44:12 -04:00
Jay Berkenbilt
f689324214 Restore coverage case
Previous commit lost coverage case for buffer-based replaceStreamData.
2012-07-25 22:32:14 -04:00
Jay Berkenbilt
31efe701ae Image comparison tests are off by default 2012-07-21 20:35:00 -04:00
Jay Berkenbilt
5a02471bb1 Command-line page merging and splitting
Implement --pages ... -- option for qpdf.  Update TODO with remaining
things to document.
2012-07-21 20:33:33 -04:00
Jay Berkenbilt
6bbea4baa0 Implement QPDFObjectHandle::parse
Move object parsing code from QPDF to QPDFObjectHandle and
parameterize the parts of it that are specific to a QPDF object.
Provide a version that can't handle indirect objects and that can be
called on an arbitrary string.

A side effect of this change is that the offset used when reporting
invalid stream length has changed, but since the new value seems like
a better value than the old one, the test suite has been updated
rather than making the code backward compatible.  This only effects
the offset reported for invalid streams that lack /Length or have an
invalid /Length key.

Updated some test code and exmaples to use QPDFObjectHandle::parse.

Supporting changes include adding a BufferInputSource constructor that
takes a string.
2012-07-21 09:06:10 -04:00
Jay Berkenbilt
a101533e0a Add command line option to copy encryption from other file
Add --copy-encryption and --encryption-file-password options to qpdf.
Also strengthen test suite for copying encryption.  The strengthened
test suite would have caught the failure to preserve AES and the
failure to update the file version, which was invalidating the
encrypted data.
2012-07-15 21:15:24 -04:00
Jay Berkenbilt
db95960ac1 Bug fix: preserve AES when copying encryption parameters 2012-07-15 19:07:59 -04:00
Jay Berkenbilt
0575d77d77 Add public QPDFWriter::copyEncryptionParameters
Method to copy encryption parameters from another file.  Adapted from
existing code to copy encryption parameters from the original file.
2012-07-14 09:14:41 -04:00
Jay Berkenbilt
1c944e4c89 Have QPDFWriter detect foreign objects while writing
Throw an exception that directs the user to QPDF::copyForeignObject.
2012-07-14 08:07:23 -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
Jay Berkenbilt
8a217eb3a2 Add concept of reserved objects
QPDFObjectHandle::{new,is,assert}Reserved, QPDF::replaceReserved
provide a mechanism to add objects to a PDF file when there are
circular references.  This is a prerequisite to copying objects from
one PDF to another.
2012-07-10 23:34:32 -04:00
Jay Berkenbilt
e2dedde4bd Don't require stream data provider to know length in advance
Breaking API change: length parameter has disappeared from the
StreamDataProvider version of QPDFObjectHandle::replaceStreamData
since it is no longer necessary to compute it in advance.  This
breaking change is justified by the fact that removing the length
parameter provides the caller an opportunity to simplify the calling
code.
2012-07-07 17:33:45 -04:00
Jay Berkenbilt
8705e2e8fc Add QPDFWriter method to output to FILE* 2012-07-05 21:24:04 -04:00
Jay Berkenbilt
c227249ef1 Added test code for Tobias's changes 2012-07-04 23:19:32 -04:00
Jay Berkenbilt
a167ce8120 Update ChangeLog and TODO 2012-06-27 10:20:50 -04:00
Jay Berkenbilt
5c8d5b1a6c Update ChangeLog for previous fixes 2012-06-24 15:56:59 -04:00
Jay Berkenbilt
ffb96ee17e Add pdf-from-scratch example 2012-06-23 09:05:06 -04:00
Jay Berkenbilt
b6bdc0f595 Add factory methods for creating empty arrays and dictionaries.
Also updated pdf_from_scratch test driver to use the new factories,
and made some cosmetic improvements and documentation updates for the
emptyPDF() method.
2012-06-22 09:46:33 -04:00
Jay Berkenbilt
a0768e4190 Add QPDF::emptyPDF() and pdf_from_scratch test code 2012-06-21 23:09:05 -04:00
Jay Berkenbilt
30dbf94f53 Fix order of build flags.
Place user-specified CPPFLAGS and LDFLAGS later so that user-specified
non-standard paths that have old versions of qpdf don't cause the
build to fail.
2012-06-21 21:24:06 -04:00
Jay Berkenbilt
81e8752362 Use qpdf_offset_t in place of off_t in public APIs.
off_t is used internally only when needed to talk to standard
libraries.  This requires that the "long long" type be supported by
the compiler.
2012-06-21 21:23:24 -04:00
Jay Berkenbilt
c2e5ca48e0 ChangeLog entry for pkg-config files 2012-06-21 16:40:31 -04:00
Jay Berkenbilt
d1ebe30ff6 Add QPDFObjectHandle::shallowCopy() 2012-06-21 16:15:09 -04:00