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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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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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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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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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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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- 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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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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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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Commit 43f6bc80 copied over Chromium's base/debug/alias.cc, but that
confuses Windows builds and Linux jumbo builds in Chromium.
To fix this, wrap PDFium's copy in the pdfium namespace.
BUG=chromium:860850
TBR=dsinclair@chromium.org
Change-Id: I1ceec28b9ce6c2893bf030a5b6564dce6d6ec376
Reviewed-on: https://pdfium-review.googlesource.com/37430
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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Copy base::debug::Alias() from Chromium. Use it to prevent ICF from
combining FX_OutOfMemoryTerminate() with similar functions.
BUG=chromium:860850
Change-Id: Ifccb05c0218f86e44b9bb235847e01383ec36b3f
Reviewed-on: https://pdfium-review.googlesource.com/37290
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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Test-only CL. Building another container from the string in the
manner in the test is desirable.
Change-Id: I8f41aecfd82fd27f8b9af159b887b66b566f9ac7
Reviewed-on: https://pdfium-review.googlesource.com/36910
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
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This enables more complicated cleanup when an observed object
is destroyed. Use it to make documents observable and to allow
the CPDF_Avail to cleanup without the need for intermediate class.
Change-Id: I3a8e758b7ff542e0a58710eff1ac8017205cbd45
Reviewed-on: https://pdfium-review.googlesource.com/36373
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
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Kinda like reaching a commit point, makes going forward more useful.
Change-Id: I7695b6e627d4cd8ed2bccb667d0cabd7f42c7b1c
Reviewed-on: https://pdfium-review.googlesource.com/35970
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
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BUG=chromium:856054
Change-Id: Ieacb7be324f290c91623ed1bd97744150fbfa6e7
Reviewed-on: https://pdfium-review.googlesource.com/36090
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Change-Id: I5dfadcb68e640235be6e3eb7c8d57ae3b8013d26
Reviewed-on: https://pdfium-review.googlesource.com/35691
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
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We speculate that the bug that makes the comparison operator irreflexive
might be the cause of the segv on windows production code, should a
NaN sneak into the GraphicsData struct. In any event, should this
happen, the tree won't be correct with some nodes erroneously replaced.
Add a test which fails prior to the patch, but alas does not elicit
the segv.
Also move operator<() methods to .cpp file corresponding to .h file
in which they are delcared.
Bug: 852273
Change-Id: Ib7929881e7ffbed8b09f6e2c9fb7898cbde58946
Reviewed-on: https://pdfium-review.googlesource.com/35171
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
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This hasn't been a big deal, since no data is copied, but avoids
some ref-count churn in the process.
Change-Id: I53c059284aa6806793c59a0c19b3e0d7fe4191d6
Reviewed-on: https://pdfium-review.googlesource.com/35350
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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BUG=chromium:664730
Change-Id: Ie46221382ffed7a16366c484c249d2571c7be5c4
Reviewed-on: https://pdfium-review.googlesource.com/34696
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
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This reverts commit 80c6ab7b99bcbd7b940f78dc0cac52c30249f59c.
Reason for revert: (void) idiom is prevalent through out C++ code.
Original change's description:
> Convert (void) to static_cast<void> in C++ code
>
> Converting instances of old C-style void casts to suppress return
> values to use C++ style static cases. There are a few examples of
> (void) that remain, since they are in C code, and the third_party/
> instances are not touched at all.
>
> Change-Id: I72b3fc0e1d713db669b76135e03d1cf87873a2fe
> Reviewed-on: https://pdfium-review.googlesource.com/33790
> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
TBR=thestig@chromium.org,tsepez@chromium.org,dsinclair@chromium.org,hnakashima@chromium.org,rharrison@chromium.org
Change-Id: Ib6cc021c97cb1ea7c71b90346fa9b500659f565d
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://pdfium-review.googlesource.com/33890
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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Converting instances of old C-style void casts to suppress return
values to use C++ style static cases. There are a few examples of
(void) that remain, since they are in C code, and the third_party/
instances are not touched at all.
Change-Id: I72b3fc0e1d713db669b76135e03d1cf87873a2fe
Reviewed-on: https://pdfium-review.googlesource.com/33790
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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This fixes the libstdc++ build after 656eb84f8 ("Move codepage/charset
methods into related places"):
../../third_party/pdfium/core/fxcrt/fx_codepage.cpp: In function ‘uint16_t FX_GetCodePageFromCharset(uint8_t)’:
../../third_party/pdfium/core/fxcrt/fx_codepage.cpp:212:60: error: no matching function for call to ‘begin(const {anonymous}::FX_CHARSET_MAP [31])’
std::lower_bound(std::begin(g_FXCharset2CodePageTable),
^
In file included from /usr/include/c++/7/utility:76:0,
from /usr/include/c++/7/algorithm:60,
from ../../third_party/pdfium/core/fxcrt/fx_codepage.cpp:9:
/usr/include/c++/7/initializer_list:89:5: note: candidate: template<class _Tp> constexpr const _Tp* std::begin(std::initializer_list<_Tp>)
begin(initializer_list<_Tp> __ils) noexcept
^~~~~
/usr/include/c++/7/initializer_list:89:5: note: template argument deduction/substitution failed:
../../third_party/pdfium/core/fxcrt/fx_codepage.cpp:212:60: note: mismatched types ‘std::initializer_list<_Tp>’ and ‘const {anonymous}::FX_CHARSET_MAP*’
std::lower_bound(std::begin(g_FXCharset2CodePageTable),
^
Bug: chromium:819294
Change-Id: I3c0368af81ae274d62bf51eb6dc17d9bd71951eb
Reviewed-on: https://pdfium-review.googlesource.com/33490
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
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In the case of ByteStringView and WideStringView, non official
build fails to link in GCC 6.3 or older. But it works in GCC 7.2.
A workaround for this problem is avoiding declaring in same file
extern and explicit class template for them.
It seems to be related to https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57728
though that bug is supposed to be already fixed in 6.3.0.
Change-Id: Ia6323f23138c0c11e59ce7aa31da1f6c11bc4a5a
Reviewed-on: https://pdfium-review.googlesource.com/33270
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
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These guards are using #if, when they should be using #ifdef. Caught
using Clang's static analyzer.
Change-Id: I86e99c5e4142cf84fff5f2365ad534f09ae40511
Reviewed-on: https://pdfium-review.googlesource.com/33510
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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Change-Id: I71417cc5b1bd00f77d42740198cc17487ebd686e
Reviewed-on: https://pdfium-review.googlesource.com/33330
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
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Also, EstimateSize() is similarly unused.
Change-Id: Idbbb5a4a1105448731d3541365c30ba37ff7eb29
Reviewed-on: https://pdfium-review.googlesource.com/33314
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Most of them can be marked const. A couple are marked non-const because
eventually something inside gets modified.
Change-Id: I5415ca8d1efdac451cde340272436cd1e6ec433f
Reviewed-on: https://pdfium-review.googlesource.com/32184
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
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Replace it with CFX_BitStream.
Change-Id: Ib74657f888b8dec8b6fdad7b49e28d250991c590
Reviewed-on: https://pdfium-review.googlesource.com/32852
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Change-Id: Icfb7c6933625436b9fcf6a9fdfd0e5f655108eca
Reviewed-on: https://pdfium-review.googlesource.com/32851
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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Change-Id: I764196b9cc1d437313aac18ee9d5dbed642c7119
Reviewed-on: https://pdfium-review.googlesource.com/32850
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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Also make destructors private for RetainPtr sub-classes, and add missing
destructors.
Change-Id: I451bf0aae2dae943b1f450d0aa4ca5124dc578fd
Reviewed-on: https://pdfium-review.googlesource.com/32853
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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Import Chromium's base/compiler_specific.h from r537069.
Now that FALLTHROUGH is available via compiler_specific.h, remove
FX_FALLTHROUGH.
Change-Id: I8b9631a4f007673e10e0c26951dfd61e9dcada30
Reviewed-on: https://pdfium-review.googlesource.com/32639
Reviewed-by: Nico Weber <thakis@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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Currently the PartitionRealloc code path will only exit, with no
option to return nullptr on failure, unlike PartitionAlloc code path.
This CL refactors the realloc code path to be similar to alloc code
path, following the upstream patch:
https://chromium-review.googlesource.com/c/chromium/src/+/1044971
This also changes the version of realloc exposed to third party C libs
to have the nullptr behaviour, like the exposed version of alloc.
This CL is a redo of
https://pdfium-review.googlesource.com/c/pdfium/+/31990
BUG=chromium:783022
Change-Id: Ib1b659079585dfd0423d683b8a2c7b6758a22a01
Reviewed-on: https://pdfium-review.googlesource.com/32613
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Chris Palmer <palmer@chromium.org>
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Use the system ICU header when USE_SYSTEM_ICUUC is defined.
Change-Id: Ieeb0e4a11ae86da871644dd0fd84de07e9917fde
Reviewed-on: https://pdfium-review.googlesource.com/32490
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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The CFX_BidiLine class is just a thin wrapper to hold a set of methods.
This CL moves the methods into the anonymous namespace and calls them
directly from FX_BidiLine.
Change-Id: Iea2ba178fb08339445702c9af4251f3c8ba2beb6
Reviewed-on: https://pdfium-review.googlesource.com/32617
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
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This CL verifies that the provided BidiPos is within the acceptable size
for the vector before accessing.
Bug: chromium:843100
Change-Id: I2955a3ca628b19ee51dd4233726b859729c125af
Reviewed-on: https://pdfium-review.googlesource.com/32593
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
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When detecting the exponent on a floating point number, cap the maximum
amount we'll multiply by otherwise we can get excessivly large numbers.
Bug: chromium:843074
Change-Id: I6a8d1b4c20b66e305d2727f464119b1e74beb699
Reviewed-on: https://pdfium-review.googlesource.com/32570
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
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This CL switches the usage of wcstod to use the FXSYS_wcstof to
determine if a given string is a valid floating point number.
Using the internal method makes linux slightly slower (10's of ms)
makes mac a lot faster 900ms to 60ms for the test case in the bug.
The FXSYS_wcstof method has been extended to handle the parsing of
float exponents. Unittests were added for FXSYS_wcstof.
Bug: chromium:813646
Change-Id: Ie68287a336e3b95a0c0b845d5bf39db6fc82b39c
Reviewed-on: https://pdfium-review.googlesource.com/32510
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
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This CL converts several asserts in the FX_Bidi code to continue instead
of asserting in the face of unexpected input.
A BIDI fuzzer has been added as well.
Bug: chromium:839695
Change-Id: If61f822bde7442c008d50be58f7cecffb6e5d658
Reviewed-on: https://pdfium-review.googlesource.com/32191
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
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This CL modifies the formcalc transpiler to create less CFX_WideTextBuf
classes as we convert to JavaScript. This can take some pathalogical
formcal from 20sec to convert to .5sec.
Bug: chromium:834575
Change-Id: I428883297bbc3a6a325a4ab0ad51834f2f02ab82
Reviewed-on: https://pdfium-review.googlesource.com/32154
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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Avoids scrolling past this noise when looking at document code.
No functional changes.
Change-Id: I4684a8cf4d8894c699cd1c980bc5fc41b2179ad1
Reviewed-on: https://pdfium-review.googlesource.com/32156
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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This existing code has the potential for an integer overflow in it.
When overflow occurs in this function scaling may partially succeed.
This is due to how out of range values are being clamped, which
implicitly swallows the overflow.
This CL changes the calculation to be performed in a 64-bit space and
then attempts to down cast it back to 32-bit space at the end. Because
there are multiple steps it is possible for an intermediate value to
cause an overflow in 32 bit space, but the final value to be valid. If
the downcast is not possible then the stretch operation is failed.
An existing test case has been updated, since it encoded an incorrect
result.
BUG=chromium:839245
Change-Id: I637cc1e2d6c6c2d5394599104f76352c20ead021
Reviewed-on: https://pdfium-review.googlesource.com/32056
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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This CL moves several of the member variables to
CFX_XMLParser::DoSyntaxParse as they are only used in that method. The
names of the members have been updated to make their usage clearer.
Change-Id: I460f2bad0181ece278752bd8d93d6bf63dc6d70a
Reviewed-on: https://pdfium-review.googlesource.com/32050
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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This CL moves the switch from CFX_XMLParse::Parse into
CFX_XMLParser::DoSyntaxParse. This means all the work to build the tree
is now done in one place instead of spread between the two methods.
Change-Id: Ie9c6cd67795c3fcbd3e305187a06cd727d386a7c
Reviewed-on: https://pdfium-review.googlesource.com/31950
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
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This CL renames ParseTextChar to ProcessTextChar to make the usage
clearer. The method does not do any parsing, it just decides if the char
is part of an entity or not.
Change-Id: I9b70a82a421b02e2352cd07bd88b1e581d8578b7
Reviewed-on: https://pdfium-review.googlesource.com/31930
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
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This CL adds a CFX_XMLDocument to act as the XML node container. All
nodes are now owned by the document and the document is returned by the
CFX_XMLParser.
Classes which parse XML files now store the document instead of the root
node.
BUG: chromium:835636
Change-Id: I1e07d6115cf14714911d6fd4c3fa920c94fd5faf
Reviewed-on: https://pdfium-review.googlesource.com/31313
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
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- Refer to the string in CFX_BidiString by const-ref.
- Remove useless CharAt() method.
- Turn a member variable into a local variable.
Change-Id: I30f221b7350150c839a793129789d8ea7cc1f331
Reviewed-on: https://pdfium-review.googlesource.com/31670
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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This CL fixes issues with handling XML instructions in CXFA_DocumentParser.
Unittests were added to verify the behaviour.
Change-Id: Iff8d51d0e6d411419473c9b2c32c700d4bbf86f5
Reviewed-on: https://pdfium-review.googlesource.com/31810
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
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This CL fixes several issues in the CFX_XML class and
adds unit tests.
Change-Id: I05270690de8f3c45dceb866e17ef899ae6d23389
Reviewed-on: https://pdfium-review.googlesource.com/31753
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
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When we extract the text data we need to make sure we clear any
entity start positions, otherwise our entity extraction will go badly.
Bug: chromium:836661
Change-Id: Icbafdef912b1f5b495eafef426961c5df66cd3fd
Reviewed-on: https://pdfium-review.googlesource.com/31450
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
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