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74 Commits

Author SHA1 Message Date
Jay Berkenbilt fee7489ee4 Add Pl_Buffer::getMallocBuffer 2021-12-17 12:38:52 -05:00
Jay Berkenbilt af2a71aa2c Handle bitstream overflow errors more gracefully (fixes #581) 
* Make it a runtime error, not a logic error
* Include additional information
* Capture it properly in checkLinearization
 2021-12-10 15:37:35 -05:00
Jay Berkenbilt ec09b91443 Add QIntC::range_check_subtract 2021-11-04 13:53:46 -04:00
Jay Berkenbilt 0b1623d07d Add QUtil::path_basename 2021-02-18 09:59:03 -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 bf0e6eb302 Add QUtil methods for dealing with PDF timestamp strings 2021-02-09 17:50:24 -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 9d64481571 Handle negative numbers in QIntC::range_check (fuzz issue 26994) 2020-11-21 13:43:04 -05:00
Jay Berkenbilt 77198d5310 Delegate random number generation to crypto provider (fixes #418) 2020-04-06 11:23:02 -04:00
Jay Berkenbilt 7246404177 JSON: implement pattern keys in schema 2020-04-04 18:06:32 -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 a44b5a34a0 Pull wmain -> main code from qpdf.cc into QUtil.cc 2020-01-14 11:40:51 -05:00
Jay Berkenbilt c4478e5249 Allow odd/even modifiers in numeric range (fixes #364) 2019-11-09 13:23:12 -05:00
Jay Berkenbilt 1639d972ea Run libtests for crypto with all available providers 
If QPDF_CRYPTO_PROVIDER is set, just run the tests for the given
provider. This is to support cases of running the entire test suite
for each provider. If QPDF_CRYPTO_PROVIDER is not set, run the tests
that exercise the cyrpto provider for each available provider.
 2019-11-09 09:53:42 -05:00
Jay Berkenbilt fb4c6c1503 Increase coverage for RC4 testing 2019-11-09 09:53:42 -05:00
Jay Berkenbilt 30c1f856d4 See if C++11 features work 2019-11-09 08:18:02 -05:00
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 4fa7b1eb60 Add remove_file and rename_file to QUtil 2019-08-31 15:51:04 -04:00
Jay Berkenbilt 8c69f8495d Add getRefcount to PointerHolder test 2019-08-30 11:58:33 -04:00
Jay Berkenbilt e83f3308fb SparseOHArray 2019-08-17 23:02:41 -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 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 a35d4ce9cc Fix bounds error in utf16_to_utf8 conversion 2019-06-21 17:40:24 -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 42306e2ff8 QUtil: add unsigned int/string functions 2019-06-21 13:17:21 -04:00
Jay Berkenbilt a66828caff New safe type converters in QIntC 2019-06-21 13:17:21 -04:00
Jay Berkenbilt 623f5b664e Convert pages to form XObjects 
Support conversion of pages to form XObjects and placement of form
XObjects on pages.
 2019-01-27 07:50:30 -05:00
Jay Berkenbilt e87d149918 Add QUtil::possible_repaired_encodings 2019-01-17 11:43:56 -05:00
Jay Berkenbilt 8f389f14c0 QUtil::analyze_encoding 2019-01-17 11:43:56 -05:00
Jay Berkenbilt 6817ca585a Bidirectional transcoding for win, mac, pdf, utf8, utf16 2019-01-17 11:43:56 -05:00
Jay Berkenbilt b341d742db Add WinAnsi and MacRoman encoding 2019-01-05 23:01:44 -05:00
Jay Berkenbilt 3ef1b77304 Refactor QUtil::utf8_to_ascii 2019-01-05 22:59:29 -05:00
Jay Berkenbilt 02281632cc Add QUtil::utf8_to_ascii 2019-01-03 23:18:13 -05:00
Jay Berkenbilt fa3664357b Move numrange code from qpdf.cc to QUtil.cc 
Also move tests to libtests.
 2018-12-21 19:11:57 -05:00
Jay Berkenbilt 651179b5da Add simple JSON serializer 2018-12-21 18:34:56 -05:00
Jay Berkenbilt 4f4c627b77 ClosedFileInputSource: add method to keep file open 
During periods of intensive operation on a specific file, this method
can reduce the overhead of repeated open/close operations.
 2018-08-04 19:52:46 -04:00
Jay Berkenbilt 4ccc8b1a44 Add ClosedFileInputSource 
ClosedFileInputSource is an input source that keeps the file closed
when not reading it.
 2018-06-22 12:52:45 -04:00
Jay Berkenbilt e44c395c51 QUtil::toUTF16 2018-06-21 15:57:13 -04:00
Jay Berkenbilt 44674a3e58 Label qutil test output 2018-06-21 15:57:13 -04:00
Jay Berkenbilt 1a4dcb4aaf Pl_Buffer starts in a ready state 2018-03-06 11:31:03 -05:00
Jay Berkenbilt 3e306ae64c Add QUtil::hex_decode 2018-01-14 09:04:13 -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 bf2fb239d7 Rename png_filter -> predictors 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 38bdbc0719 PNG filter test images 2017-12-25 14:24:48 -05:00
Jay Berkenbilt 40ecba4172 Pl_DCT: Use custom source and destination managers (fixes #153) 
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 6d46346eb9 Detect integer overflow/underflow 2017-08-29 12:28:32 -04:00
Jay Berkenbilt ae90d2c485 Implement Pl_DCT pipeline 
Additional testing is added in later commits to be supported by
additional changes in the library.
 2017-08-21 17:44:02 -04:00