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Commit Graph

31 Commits

Author SHA1 Message Date
m-holger
d8d73679e7 Split qpdf_fuzzer into six separate fuzzers 2024-09-03 14:21:06 +01:00
m-holger
8ed10d71ea In qpdf_fuzzer and dct_fuzzer add a scan limit for Pl_DCT 2024-08-25 17:03:26 +01:00
m-holger
5edb548148 Reduce Pl_DCT and Pl_Flate memory limits during fuzzing
Also, add additional qpdf_fuzzer test case.
2024-08-03 14:09:31 +01:00
m-holger
2bb9e06d1e In qpdf_fuzzer add a memory limit for Pl_Flate 2024-07-28 19:54:38 +01:00
m-holger
f8518d3677 Adjust qpdf_fuzzer warnings limit 2024-07-27 21:18:06 +01:00
m-holger
4f694cdfde In qpdf_fuzzer reduce Pl_PNGFilter and Pl_TIFFPredictor memory limits 2024-07-22 13:25:21 +01:00
m-holger
34729e37e0 Limit memory used by Pl_PNGFilter and Pl_TIFFPredictor during fuzzing 2024-07-18 16:50:30 +01:00
m-holger
fe1fffe8db Change QPDF max_warnings into a hard limit
Throw damagedFile if max_warnings is exceeded. Change qpdf_fuzzer warnings limit to
limit to 500.
2024-07-18 16:50:08 +01:00
Jay Berkenbilt
598268f6ad Add setMaxWarnings rather than using conditional compilation 2024-07-03 15:44:44 +01:00
Jay Berkenbilt
65bd8bc57d Add DCT decompression config methods in favor of compile-time changes
As a rule, we should avoid conditional compilation is it always causes
code paths that are sometimes not even seen lexically by the compiler.
Also, we want the actual code being fuzzed to be as close as possible
to the real code. Conditional compilation is suitable to handle
underlying system differences.

Instead, favor configuration using callbacks or other methods that can
be triggered in the places where they need to be exercised.
2024-07-03 15:43:38 +01:00
m-holger
42c511198b Suppress excessive warnings while fuzzing
Add extra fuzz test case and amend memory limit for Pl_DCT.
2024-07-02 01:16:23 +01:00
m-holger
0a081e1f09 In QPDFOutlineObjectHelper detect loops in direct children
Also, add diagnostic messages in qpdf_fuzzer and additional fuzz test case.
2024-06-29 12:38:07 +01:00
Jay Berkenbilt
60965d5f4d Rerun clang-format 2023-05-21 13:35:09 -04:00
m-holger
e6577a1323 Replace 'virtual' specifier with 'override' 2023-05-20 15:41:56 +01:00
Jay Berkenbilt
a59e7ac7ec Disable copying/assigning to QPDF objects, add QPDF::create() 2022-09-02 08:53:27 -04:00
m-holger
6c69a747b9 Code clean up: use range-style for loops wherever possible
Remove variables obsoleted by commit 4f24617.
2022-05-21 16:06:29 -04:00
Jay Berkenbilt
16f4f94cd9 Prepare code for JSON v2
Update getJSON() methods and calls to them
2022-05-07 11:12:01 -04:00
Jay Berkenbilt
8ccd3a8a89 Mark weak encryption with API changes (fixes #576) 2022-04-30 17:24:15 -04:00
Jay Berkenbilt
4f24617e1e Code clean up: use range-style for loops wherever possible
Where not possible, use "auto" to get the iterator type.

Editorial note: I have avoid this change for a long time because of
not wanting to make gratuitous changes to version history, which can
obscure when certain changes were made, but with having recently
touched every single file to apply automatic code formatting and with
making several broad changes to the API, I decided it was time to take
the plunge and get rid of the older (pre-C++11) verbose iterator
syntax. The new code is just easier to read and understand, and in
many cases, it will be more effecient as fewer temporary copies are
being made.

m-holger, if you're reading, you can see that I've finally come
around. :-)
2022-04-30 13:27:18 -04:00
Jay Berkenbilt
cdd0b4fb7d Use = default and = delete where possible in classes 2022-04-16 11:39:14 -04:00
Jay Berkenbilt
ba0ef7a124 Replace PointerHolder with std::shared_ptr in the rest of the code
Increase to POINTERHOLDER_TRANSITION=3

patrepl s/PointerHolder/std::shared_ptr/g **/*.cc **/*.hh
patrepl s/make_pointer_holder/std::make_shared/g **/*.cc
patrepl s/make_array_pointer_holder/QUtil::make_shared_array/g **/*.cc
patrepl s,qpdf/std::shared_ptr,qpdf/PointerHolder, **/*.cc **/*.hh
git restore include/qpdf/PointerHolder.hh
git restore libtests/pointer_holder.cc
cleanpatch
./format-code
2022-04-09 17:33:29 -04:00
Jay Berkenbilt
12f1eb15ca Programmatically apply new formatting to code
Run this:

for i in  **/*.cc **/*.c **/*.h **/*.hh; do
  clang-format < $i >| $i.new && mv $i.new $i
done
2022-04-04 08:10:40 -04:00
Jay Berkenbilt
cb769c62e5 WHITESPACE ONLY -- expand tabs in source code
This comment expands all tabs using an 8-character tab-width. You
should ignore this commit when using git blame or use git blame -w.

In the early days, I used to use tabs where possible for indentation,
since emacs did this automatically. In recent years, I have switched
to only using spaces, which means qpdf source code has been a mixture
of spaces and tabs. I have avoided cleaning this up because of not
wanting gratuitous whitespaces change to cloud the output of git
blame, but I changed my mind after discussing with users who view qpdf
source code in editors/IDEs that have other tab widths by default and
in light of the fact that I am planning to start applying automatic
code formatting soon.
2022-02-08 11:51:15 -05:00
Jay Berkenbilt
c62e8e2b28 Update for clean compile with POINTERHOLDER_TRANSITION=2 2022-02-07 17:38:22 -05:00
Jay Berkenbilt
750aca5b94 First increment of improving handling of weak crypto (fixes #358) 2021-11-11 12:24:15 -05:00
Jay Berkenbilt
3be58f49e5 Make more QPDFPageObjectHelper methods work with form XObject 2021-01-02 14:08:53 -05:00
Jay Berkenbilt
63ea46193d QPDFPageObjectHelper: getPageImages -> getImages 2021-01-02 11:33:36 -05:00
Jay Berkenbilt
232f5fc9f3 Handle jpeg library fuzz false positives
The jpeg library has some assembly code that is missed by the compiler
instrumentation used by memory sanitization. There is a runtime
environment variable that is used to work around this issue.
2020-10-22 06:31:52 -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
793d987b5f Update qpdf_fuzzer to increase coverage 2019-06-21 17:56:24 -04:00
Jay Berkenbilt
f561a5df32 Implement fuzzer with good coverage 2019-06-15 17:24:24 -04:00