Jay Berkenbilt
633fb414af
Pl_QPDFTokenizer: Use unsigned_char_pointer instead of copy
2018-01-28 18:34:43 -05:00
Jay Berkenbilt
13d9756a45
Minor fixes to tokenizer
2018-01-28 18:34:43 -05:00
Jay Berkenbilt
2e4ca7ecf4
Update version numbers for 7.1.0
2018-01-14 20:09:20 -05:00
Jay Berkenbilt
04e47deaf9
Fixes for clang
2018-01-14 19:18:04 -05:00
Jay Berkenbilt
569d74d36b
Allow raw encryption key to be specified
...
Add options to enable the raw encryption key to be directly shown or
specified. Thanks to Didier Stevens <didier.stevens@gmail.com> for the
idea and contribution of one implementation of this idea.
2018-01-14 10:21:05 -05:00
Jay Berkenbilt
3e306ae64c
Add QUtil::hex_decode
2018-01-14 09:04:13 -05:00
Jay Berkenbilt
791e0db762
Allow trailing . in numeric token ( fixes #165 )
2018-01-13 20:05:40 -05:00
Jay Berkenbilt
ec0087e3ce
Support TIFF Predictor ( fixes #171 )
2018-01-13 19:49:42 -05:00
Jay Berkenbilt
53971d50be
Add Pl_TIFFPredictor
2018-01-13 19:49:42 -05:00
Jay Berkenbilt
d9c9049708
Add signed support to BitStream and BitWriter
2018-01-13 19:49:42 -05:00
Jay Berkenbilt
661ed1d28e
Minor fixes to Pl_PNGFilter
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Fix comment, remove restriction that doesn't actually matter.
2018-01-13 19:49:42 -05:00
Jay Berkenbilt
be27d47bdc
Use better error for getStreamData failure
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If the stream isn't filterable but we call getStreamData, throw a
regular exception instead of a logic error so that normal error
handling and reporting mechanisms will be used.
2018-01-13 19:49:42 -05:00
Jay Berkenbilt
4edfe1f41d
Add tests for new PNG filters
2017-12-25 18:20:52 -05:00
Jay Berkenbilt
a3a55be9cd
Correct errors in PNG filters and make use from library
2017-12-25 14:24:48 -05:00
Casey Rojas
9a48720246
Initial implementation of other PNG decode filters
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Initial implementation provided by Casey Rojas <crojas@infotechfl.com>
Some problems are fixed in a subsequent commit.
2017-12-24 22:59:51 -05:00
Jay Berkenbilt
0f1ce8e646
Prepare 7.0.0 release
2017-09-16 13:22:15 -04:00
Jay Berkenbilt
249e95f608
Fix test failure on MSVC
2017-09-15 23:09:04 -04:00
Jay Berkenbilt
6898bc8d98
Spell check
2017-09-15 23:09:04 -04:00
Jay Berkenbilt
f2ffb6968a
Fix Windows compilation errors
2017-09-15 21:44:57 -04:00
Jay Berkenbilt
d31a7b76e7
Improve message for stream decoding error
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Tweak the message so that we inform the user that we are mitigating
data loss.
2017-09-12 16:03:48 -04:00
Jay Berkenbilt
eaacf94005
Update C API with new QPDFWriter methods
2017-09-12 14:30:39 -04:00
Jay Berkenbilt
40ecba4172
Pl_DCT: Use custom source and destination managers ( fixes #153 )
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Avoid calling jpeg_mem_src and jpeg_mem_dest. The custom destination
manager writes to the pipeline in smaller chunks to avoid having the
whole image in memory at once. The source manager works directly with
the Buffer object. Using customer managers avoids use of memory source
and destination managers, which are not present in older versions of
libjpeg still in use by some Linux distributions.
2017-09-07 22:59:11 -04:00
Jay Berkenbilt
3ef1be9783
PNGFilter: Better range checking for columns
2017-08-31 07:26:58 -04:00
Jay Berkenbilt
1868a10f8b
Replace all atoi calls with QUtil::string_to_int
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The latter catches underflow/overflow.
2017-08-29 12:28:32 -04:00
Jay Berkenbilt
742190bd98
Pl_PNGFilter: disallow columns = 0
2017-08-29 12:28:32 -04:00
Jay Berkenbilt
6d46346eb9
Detect integer overflow/underflow
2017-08-29 12:28:32 -04:00
Jay Berkenbilt
e999bbae43
Fix memory leak with bad jpeg data
2017-08-28 22:16:45 -04:00
Jay Berkenbilt
c6872d2c70
Clean up circular references in QPDF_Stream
2017-08-28 22:16:31 -04:00
Jay Berkenbilt
728dc9e6d8
Fix error caught by clang
2017-08-26 21:51:17 -04:00
Jay Berkenbilt
dea704f0ab
Pad keys to avoid memory errors ( fixes #147 )
2017-08-26 21:35:59 -04:00
Jay Berkenbilt
021c229331
Fix Pl_Flate memory leak on error ( fixes #148 )
2017-08-25 22:26:53 -04:00
Jay Berkenbilt
ad527a64f9
Parse iteratively to avoid stack overflow ( fixes #146 )
2017-08-25 21:56:45 -04:00
Jay Berkenbilt
85f05cc57f
Detect xref pointer infinite loop ( fixes #149 )
2017-08-25 19:58:31 -04:00
Jay Berkenbilt
1e52d33822
Bump soname to 18 and version to 7.0.b1
2017-08-22 16:50:48 -04:00
Jay Berkenbilt
e452d9dca6
Spell check
2017-08-22 14:22:20 -04:00
Jay Berkenbilt
6219111ed7
Update references to README files
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Most of the README files have been renamed. Refer to the new names.
2017-08-22 14:13:10 -04:00
Jay Berkenbilt
83ec09f66c
Do memory checks
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Slightly improve memory cleanup in Pl_DCT
Make it easier to test with valgrind
2017-08-22 14:13:10 -04:00
Jay Berkenbilt
fabff0f3ec
Limit token length during xref recovery
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While scanning the file looking for objects, limit the length of
tokens we allow. This prevents us from getting caught up in reading a
file character by character while digging through large streams.
2017-08-22 14:13:10 -04:00
Jay Berkenbilt
caf5e39c2e
Fix compiler warnings for clang/mac OS X
2017-08-22 14:13:10 -04:00
Jay Berkenbilt
6884ad2ead
Fix logic error in recovery
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A stray semicolon caused a condition to be incorrectly applied during
stream length recovery.
2017-08-22 07:19:41 -04:00
Jay Berkenbilt
ce435222b2
Push QPDFWriter member variables into a nested class
2017-08-21 22:04:07 -04:00
Jay Berkenbilt
a8c93bd324
Push QPDF member variables into a nested class
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Pushing member variables into a nested class enables addition of new
member variables without breaking binary compatibility.
2017-08-21 21:35:11 -04:00
Jay Berkenbilt
198856a825
Improve pclm parameter settings
2017-08-21 21:05:48 -04:00
Jay Berkenbilt
8ab52fa558
Combine writePCLm with writeStandard
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Reduce code duplication
2017-08-21 21:05:48 -04:00
Jay Berkenbilt
9f60a864a0
Combine PCLm header into writeHeader
2017-08-21 21:05:47 -04:00
Jay Berkenbilt
adbcfcff2d
Remove duplicated coverage cases
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Remove duplicated coverage cases from Sahil's code so existing test
suite passes.
2017-08-21 18:55:02 -04:00
Sahil Arora
b19210fa7d
QPDFWriter: Add setPCLm() and writePCLm() methods
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* Add support for PCLm using setPCLm() and writePCLm() methods in
QPDFWriter.hh and QPDFWriter.cc
* Add a function writePCLmHeader() for PCLm header in QPDFWriter
2017-08-21 18:55:02 -04:00
Jay Berkenbilt
ddc6cf0cf6
Precheck streams by default
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There is no need for a --precheck-streams option. We can do the
precheck without imposing any penalty, only re-encoding the stream if
it fails the first time.
2017-08-21 17:44:22 -04:00
Jay Berkenbilt
9744414c66
Enable finer grained control of stream decoding
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This commit adds several API methods that enable control over which
types of filters QPDF will attempt to decode. It also adds support for
/RunLengthDecode and /DCTDecode filters for both encoding and
decoding.
2017-08-21 17:44:22 -04:00
Jay Berkenbilt
ae90d2c485
Implement Pl_DCT pipeline
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Additional testing is added in later commits to be supported by
additional changes in the library.
2017-08-21 17:44:02 -04:00