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77198d5310
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112 Commits

Author SHA1 Message Date
Jay Berkenbilt
77198d5310 Delegate random number generation to crypto provider (fixes #418) 2020-04-06 11:23:02 -04:00
Dean Scarff
0f2507234f Add OpenSSL/BoringSSL crypto provider 
Fixes qpdf/qpdf#417
 2020-04-06 09:01:55 -04:00
Jay Berkenbilt
893d38b87e Allow propagation of errors and retry through StreamDataProvider 
StreamDataProvider::provideStreamData now has a rich enough API for it
to effectively proxy to pipeStreamData.
 2020-04-05 20:07:13 -04:00
Jay Berkenbilt
bfda941519 Use an unordered map for SparseOHArray for efficiency 
This was added in C++11.
 2020-04-03 12:16:24 -04:00
Jay Berkenbilt
88bedb41fe Implement gnutls crypto provider (fixes #218) 
Thanks to Zdenek Dohnal <zdohnal@redhat.com> for contributing the code
used for the gnutls crypto provider.
 2019-11-09 09:53:38 -05:00
Jay Berkenbilt
cc14523440 Update autoconf to support crypto selection 2019-11-09 08:18:02 -05:00
Jay Berkenbilt
d0a53cd3ea Fix typos in configure.ac 2019-11-09 08:18:02 -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
eadc222ff9 Rename SHA2 implementation (non-bisectable) 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
0cdcd10228 Rename RC4 implementation (non-bisectable) 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
5c3e856e9f Rename MD5 implementation (non-bisectable) 
Just rename MD5 -> MD5_native in place so that git annotate will show
the lines as having originated there.
 2019-11-09 08:18:02 -05:00
Jay Berkenbilt
2de41856a0 QPDFCryptoProvider: initial implementation 2019-11-09 08:18:02 -05:00
Jay Berkenbilt
700f5b961e Remove int type checks -- subsumed by C++-11 2019-11-09 08:18:02 -05:00
Jay Berkenbilt
653ce3550d Require C++-11 
Includes updates to m4/ax_cxx_compile_stdcxx.m4 to make it work with
msvc, which supports C++-11 with no flags but doesn't set __cplusplus
to a recent value.
 2019-11-09 08:18:02 -05:00
Jay Berkenbilt
456c285b02 Fix fuzz issue 16172 (overflow checking in OffsetInputSource) 2019-08-27 13:08:07 -04:00
Jay Berkenbilt
522d2b2227 Improve efficiency of fixDanglingReferences 2019-08-18 09:00:40 -04:00
Jay Berkenbilt
5187a3ec85 Shallow copy arrays without removing sparseness 2019-08-17 23:02:41 -04:00
Jay Berkenbilt
e5f504b6c5 Use SparseOHArray in QPDF_Array 2019-08-17 23:02:41 -04:00
Jay Berkenbilt
a89d8a0677 Refactor QPDF_Array in preparation for using SparseOHArray 2019-08-17 23:02:41 -04:00
Jay Berkenbilt
e83f3308fb SparseOHArray 2019-08-17 23:02:41 -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
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
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
Jay Berkenbilt
2155815234 configure: determine wordsize automatically 
Based on sizeof(size_t). Assumes 64 if not 32.
 2019-06-21 13:17:21 -04:00
Jay Berkenbilt
68ccd87c9e Move rectangle transformation into QPDFMatrix 2019-01-27 07:50:30 -05:00
Jay Berkenbilt
4ecd1df6f2 Add configure option AVOID_WINDOWS_HANDLE 
If set, we avoid using Windows I/O HANDLE, which is disallowed in some
versions of the Windows SDK, such as for Windows phones.
QUtil::same_file will always return false in this case. Only applies
to Windows builds.
 2019-01-10 22:35:08 -05:00
Jay Berkenbilt
fddbcab0e7 Mostly don't require original QPDF for copyForeignObject (fixes #219) 
The original QPDF is only required now when the source
QPDFObjectHandle is a stream that gets its stream data from a
QPDFObjectHandle::StreamDataProvider.
 2019-01-07 00:11:15 -05:00
Jay Berkenbilt
5059ec0d35 Add Matrix class under QPDFObjectHandle 2018-12-31 23:02:43 -05:00
Jay Berkenbilt
daeb5a85b6 Transformation matrix 2018-12-31 18:23:47 -05:00
Jay Berkenbilt
30a0c070e4 Add QPDFObjectHandle::getJSON() 2018-12-21 18:34:56 -05:00
Jay Berkenbilt
d1368a3851 Commit automatically generated files 2018-10-11 17:27:54 -04:00
Jay Berkenbilt
60fe8061cb Fix one more identifier (fixes #236) 2018-08-12 22:01:51 -04:00
Jay Berkenbilt
3873f5fd9b Protect headers with compliant identifiers (fixes #233) 2018-08-12 14:10:32 -04:00
Jay Berkenbilt
952a665a4e Better support for creating Unicode strings 2018-06-21 15:57:13 -04:00
Jay Berkenbilt
d0e99f195a More robust handling of type errors 
Give objects descriptions and context so it is possible to issue
warnings instead of fatal errors for attempts to access objects of the
wrong type.
 2018-02-18 21:06:27 -05:00
Jay Berkenbilt
e410b0fe0d Simplify TokenFilter interface 
Expose Pl_QPDFTokenizer, and have it do more of the work of managing
the token filter's pipeline.
 2018-02-18 21:05:47 -05:00
Jay Berkenbilt
1fdd86a049 Move Pl_QPDFTokenizer to public interface 2018-02-18 21:05:47 -05:00
Jay Berkenbilt
fd02944e19 Clean up comment 2018-02-18 21:05:47 -05:00
Jay Berkenbilt
5136238f2a Detect and report bad tokens in content normalization 2018-02-18 21:05:47 -05:00
Jay Berkenbilt
9910104442 Implement TokenFilter and refactor Pl_QPDFTokenizer 
Implement a TokenFilter class and refactor Pl_QPDFTokenizer to use a
TokenFilter class called ContentNormalizer. Pl_QPDFTokenizer is now a
general filter that passes data through a TokenFilter.
 2018-02-18 21:05:46 -05:00
Jay Berkenbilt
ba453ba4ff Use space tokens in tokenizer filter 2018-02-18 21:05:46 -05:00
Jay Berkenbilt
ec538792fa Use inline image token type in tokenizer filter 2018-02-18 21:05:46 -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 
Fix comment, remove restriction that doesn't actually matter.
 2018-01-13 19:49:42 -05:00
Jay Berkenbilt
a3a55be9cd Correct errors in PNG filters and make use from library 2017-12-25 14:24:48 -05:00