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Precursor to converting some Format() operations to simple string
addition.
Change-Id: I3a159f5ac548ea14586d87e7d56d1ec288898b0d
Reviewed-on: https://pdfium-review.googlesource.com/39590
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
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Once upon a time, someone cut-n-pasted ~300 lines of code to avoid
creating a default rectangle and to save a couple of additions. Then
one path got one set of fixes (safe ints) and the other path got a
second set of fixes (source bounds checks). Re-unify, picking up all
the fixes, since they are identical otherwise.
Change-Id: I099e854bc8ad027efabd5c2077c4319ee8221256
Reviewed-on: https://pdfium-review.googlesource.com/39550
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
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Avoid possibility of an unterminated string or nullptr by avoiding
stringviews, since the non-view classes copy and always provide
a suitable result. Always use %ls and widestrings in wprintf()
variants, since that combination is consistent across our platforms
(%s, %S, etc. have idiosyncracies).
Bug: 870952
Change-Id: Ief62a42c3486e8298f9583b56e9333db1a74972a
Reviewed-on: https://pdfium-review.googlesource.com/39551
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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BUG=chromium:865272
Change-Id: I4606bdfd78ebd6553c36b985b4f49d07b579ac40
Reviewed-on: https://pdfium-review.googlesource.com/39438
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Art Snake <art-snake@yandex-team.ru>
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We can use the memcpy() path whenever byte aligned.
Split code into helper methods.
Add test for fast path specifically.
Change-Id: I52f6129b0e788eb2da60536cfa6fce12a0609375
Reviewed-on: https://pdfium-review.googlesource.com/39432
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
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BUG=chromium:871042
Change-Id: Id4566b29270ab738c69d46cb96fc134485d6ee2f
Reviewed-on: https://pdfium-review.googlesource.com/39510
Reviewed-by: Art Snake <art-snake@yandex-team.ru>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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- Use range for-loop to avoid needing "i" and "j".
- Avoid repeatedly calculating "startnum + j".
- Reduce levels of nested ifs.
- Remove variable that is only used once.
Change-Id: I9d08cef1082812fcfaa2699f65720165c52ebcff
Reviewed-on: https://pdfium-review.googlesource.com/39437
Reviewed-by: Art Snake <art-snake@yandex-team.ru>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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Change check to use empty instead of size <= 0. Also added a comment
to the check to make it clear what is being guarded against
BUG=chromium:863098
Change-Id: I993085c04ab66a9e2869c83d8fb48883ec0bbf71
Reviewed-on: https://pdfium-review.googlesource.com/39497
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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BUG=chromium:668762
Change-Id: Iaf3fc9bcf68b8da2c947bbd78c5d72f78195b621
Reviewed-on: https://pdfium-review.googlesource.com/35991
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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GetVarInt() returns uint32_t. So assign the results to variables of type
uint32_t. Then make sure those results get passed on as uint32_t, or use
pdfium::base::IsValueInRangeForNumericType<T>() to make sure they can be
converted to type T safely.
Change-Id: I4556f0b89b4e5cdb99ab530119c8051ec8a9411d
Reviewed-on: https://pdfium-review.googlesource.com/39436
Reviewed-by: Art Snake <art-snake@yandex-team.ru>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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Then we can mark the doc pointer as const because it never changes
again. Also move initialization to headers when possible, add missing
dtors, and fix some nits.
Change-Id: I461affc8dce14d805b935fb4d8b5aaafb058a789
Reviewed-on: https://pdfium-review.googlesource.com/39413
Reviewed-by: Nicolás Peña Moreno <npm@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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Currently the parser will accept arbitrary garbage before the first
element begins. This is causing issues with ClusterFuzz since it
generates a lot of trash inputs which take a long time to parse
inspite of being invalid.
This CL adds in a check of how deep the parse is when dealing with
text, and if it is at the top level scope, then only accept the
beginning of the root node.
BUG=chromium:863098
Change-Id: Ie45114ecf488f7e8a68a120d153033c7089d5cdc
Reviewed-on: https://pdfium-review.googlesource.com/39470
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
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Bundling the test with the accessor is a safer pattern than
performing the check externally.
Add test for CopyLine().
Change-Id: I7056bf33bdca40cb84a89e4928567a389d88ff1c
Reviewed-on: https://pdfium-review.googlesource.com/39431
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
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Change-Id: Id52bb57efea2a6a46bea645e4f3e54957982a40b
Reviewed-on: https://pdfium-review.googlesource.com/39154
Reviewed-by: Cary Clark <caryclark@google.com>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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BUG=chromium:751423
Change-Id: I2fcc46b80e89cb651e255bd1fd2d6883a05cf9c7
Reviewed-on: https://pdfium-review.googlesource.com/39153
Reviewed-by: Cary Clark <caryclark@google.com>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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Add checked/unchecked GetLine(y) methods and use them.
Introduce BIT_INDEX_TO_ALIGNED_BYTE() to de-mystify some shifting.
Move local declarations to spot of use.
Remove spurious Fill(), as we initialize to 0s.
Initialize members in header where possible.
Add unit tests.
Change-Id: I41ccb91b57320dbc790fd0f680f6d98571280343
Reviewed-on: https://pdfium-review.googlesource.com/39370
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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Move HintTables parsing logic into CPDF_HintTables.
Change-Id: I9748179fe9fc3ac44f88c19c347e30c0e7e3ac67
Reviewed-on: https://pdfium-review.googlesource.com/38771
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
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Provide symmetry with JBIG2_GETDWORD().
Avoid potential illegal undefined signed shift in JBIG2_GETDWORD().
Get better column alignment under cl-format via pointless shift by
zeros for consistency.
Change-Id: I13d46fe7976074e26df72b58a055788390191364
Reviewed-on: https://pdfium-review.googlesource.com/39430
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
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One check can never fail. The other check can be done earlier, before
creating the CPDF_LinearizedHeader.
Change-Id: I0bccb2a9e19e0d5517daf96684adba6bb3a203bf
Reviewed-on: https://pdfium-review.googlesource.com/39412
Reviewed-by: Art Snake <art-snake@yandex-team.ru>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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Change-Id: I0481774858a9d9823580e1207807e35be8a9eea9
Reviewed-on: https://pdfium-review.googlesource.com/36270
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
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No matter how the dimensions might be determined, we know the
hard end of the source line, and can use it for a bounds check.
We expect the size is quantized to a multiple of m_stride, so
as long as each block operates within an m_stride, the initial
check should be sufficient.
Bug: 867501
Change-Id: Iaf9936557b856f3eb09fef522f3e6738aa4f38f0
Reviewed-on: https://pdfium-review.googlesource.com/39310
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
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Bug: chromium:868477
Change-Id: I5957c5ef051bc4fa8eb51efa6a7fc142996742c5
Reviewed-on: https://pdfium-review.googlesource.com/39130
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
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All usages were previously checked correctly, but this consolidates
some code as well.
Change-Id: I63711748b31b698a3f21f98fdb536db1e9e0b1cf
Reviewed-on: https://pdfium-review.googlesource.com/39010
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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BUG=chromium:828177
NOTRY=true
Change-Id: I30123087bbe11aaaa6175b5f729b7ab55107a975
Reviewed-on: https://pdfium-review.googlesource.com/38902
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
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This CL merges DecodeArithTemplateXUnopt for X=0,1,2. This is similar to
how three methods were merged into DecodeArithOpt3.
Change-Id: Ib0d4f14de6a8c924517d82eaec7577961503a325
Reviewed-on: https://pdfium-review.googlesource.com/38935
Commit-Queue: Nicolás Peña Moreno <npm@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
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Change-Id: Ib22db6c57d2066ef70c0ef12e44d1e5eee6611a5
Reviewed-on: https://pdfium-review.googlesource.com/36410
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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Introduces checks in a few new places, but mainly just consolidates
checking/casting logic.
Change-Id: I634a03060d254db099972c6978249992367e146c
Reviewed-on: https://pdfium-review.googlesource.com/38900
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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Because it is a stronger pattern at runtime.
These were found by essentially: grep -ni '\bassert\b.*type'
Change-Id: I913d77139053e8980528597a6633e1859e5204c4
Reviewed-on: https://pdfium-review.googlesource.com/38890
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
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Allows killing off static_cast<> in two places.
Change-Id: I467b69d92e8cbda5c2916b6ed2e97c173d8b4f2f
Reviewed-on: https://pdfium-review.googlesource.com/38897
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
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Remove |kInvalidHeaderOffset|.
Change-Id: I5978e745e97aa4e13299dd21028721725ac0c996
Reviewed-on: https://pdfium-review.googlesource.com/38853
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Art Snake <art-snake@yandex-team.ru>
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The subtypes are listed in "PDF Reference 1.7", page 617.
Bug: chromium:856331
Change-Id: I41d6094949ff22007a72ef7c1493c413c5af5f7b
Reviewed-on: https://pdfium-review.googlesource.com/38790
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
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Replace with CFX_BufferSeekableReadStream, which allows for spans and
const inputs.
Change CXFA_DocumentParser to take IFX_SeekableReadStream instead of
IFX_SeekableStream in the process.
Change-Id: I0168451350c9fc250231f0414c38738a4d86ca42
Reviewed-on: https://pdfium-review.googlesource.com/38852
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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Clearer that just using indexing off of raw pointers, and makes the
code more closely resemble other functions.
Change-Id: I7cc8363b505e66120bc1c686bb23b2bdf8fc401f
Reviewed-on: https://pdfium-review.googlesource.com/38894
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
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Change-Id: Ib9e20fdfc637b2ba0358586e23ad72454b0b8ad1
Reviewed-on: https://pdfium-review.googlesource.com/38851
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
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- Remove #if guards in the .cpp file and flip the #if guard in the
header to produce an error when incorrectly included.
- Do the same for cfx_fileaccess_posix.cpp.
- Also remove forward declarations for win32 APIs.
Change-Id: I81056ea6198d342e62744bd3240b3a28ac53d5c0
Reviewed-on: https://pdfium-review.googlesource.com/38410
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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- CPDF_SyntaxParser can no longer be initialized multiple times.
- Make the file length and header offset const.
- Make the header offset type FX_FILESIZE consistently.
- Simplify for the common case where the header offset is 0.
Change-Id: I7138db1fbcec3b7578b0239b92fc1154fa4dc4ce
Reviewed-on: https://pdfium-review.googlesource.com/38850
Reviewed-by: Art Snake <art-snake@yandex-team.ru>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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And use it in place of ASSERT() that the type was correct. Since we
can check it, doing so at runtime may help avoid type confusion, and
we'll get a nice safe SEGV if the asserted condition ever fails.
Change-Id: I46b65a4b70e819a670d7cad7966e0d100f0d9a63
Reviewed-on: https://pdfium-review.googlesource.com/38810
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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Sample PDF:
https://yadi.sk/d/oWLtAEfy3YbEb3
For offsets, equal to the hint stream offset, added hint stream
length to determine the actual offset, because linearization
inserted the hint stream at the original location of the object.
Also the number of bits needed to represent the numerator of
the fractional position for each shared object reference may be
zero, if each shared group contains only one object with obj num,
incremented on 1.
Change-Id: I4754d603f388354821e8d0cac97ad99a7578fe4b
Reviewed-on: https://pdfium-review.googlesource.com/36610
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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We should use document size instead of File size,
because all offsets and sizes was read from document should
take into account of header offset.
Added some tests of parsing of documents with header offset.
Also drop friendship of CPDF_SyntaxParser with CPDF_Parser.
Change-Id: Iebec75ab2ee07fb644a6c653b4ef5c2e09af09fe
Reviewed-on: https://pdfium-review.googlesource.com/35830
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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Return encryption dictionary as const reference
from CPDF_Parser.
Create a copy in CPDF_Creator if needed.
Change-Id: I270f71d307d818fba7f65ebe379f5942ae816934
Reviewed-on: https://pdfium-review.googlesource.com/38390
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
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Move writing logic into implementation of related clases.
Change-Id: If70dc418b352b562ee681ea34fa6595d6f52eee3
Reviewed-on: https://pdfium-review.googlesource.com/36350
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
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Change-Id: I0743c34f0206f85828570430edb9f62b6b0cdbb5
Reviewed-on: https://pdfium-review.googlesource.com/37315
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
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Use CPDF_SyntaxParser logic to rebuild crossref.
Change-Id: I394f64e76294b97c6a7c2b8984a880712fd193a7
Reviewed-on: https://pdfium-review.googlesource.com/37314
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
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Makes the generic fx_streams.h header pull in lots less OS-specific
cluter. Combine and de-virtualize the windows struct.
Change-Id: I836b9efb00b25dbd1b8f814645dd31a0f04bb4f4
Reviewed-on: https://pdfium-review.googlesource.com/38330
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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Picks up some enhancements from base/span.h. In turn, also adds
the size_bytes() helper. Differs from base version in that it
works around C++14 enable_if_t<>, and avoids the dynamic_extent
template specialization tricks.
Use it in a few places where appropriate.
Change-Id: I86f72cf0023f2d4317a7afa351fddee601c8f86c
Reviewed-on: https://pdfium-review.googlesource.com/38251
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
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Change-Id: Ia5a4e89bff8a1dbc46246f5a734170765b7ee74e
Reviewed-on: https://pdfium-review.googlesource.com/38250
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
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The SkColorSetARGBInline alias was removed, use simply SkColorSetARGB
instead.
Bug: pdfium:11
Change-Id: I8636e305cf938df9427d01a6ca63b3d492a087f3
Reviewed-on: https://pdfium-review.googlesource.com/38252
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
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BUG=chromium:851994
Change-Id: I2e14401271c70afa204221e0f3d469f0b82ce8cf
Reviewed-on: https://pdfium-review.googlesource.com/37871
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Art Snake <art-snake@yandex-team.ru>
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Use const_cast for the non-const version to call the const version.
Change-Id: Ibdf5fe53255ee6e983555080336f5d63e683afd1
Reviewed-on: https://pdfium-review.googlesource.com/37490
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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Change-Id: I354e8bed12606abdc67427bbc7928e3b1f11e243
Reviewed-on: https://pdfium-review.googlesource.com/35433
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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