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Change-Id: I667a3cd696d44692fa3d73bdee7c2f48d3039255
Reviewed-on: https://pdfium-review.googlesource.com/32152
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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The PDF page may be blank, un-numbered, or untracked by CPDF, but
this provides a place for all XFA pages to "extend" from down the
road.
Change-Id: If1003be0f261154e61e9793ccba7e1f43cd73104
Reviewed-on: https://pdfium-review.googlesource.com/31771
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Shows that under non-XFA, we hand out a new FPDF_PAGE on each call,
but under XFA we hand out the same FPDF_PAGE and ref-count it
under the covers.
Change-Id: I47cd28c65faed90cf425bbc920e1b56b1e4676a8
Reviewed-on: https://pdfium-review.googlesource.com/32057
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@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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Also change Initial() to Initialize().
Change-Id: Ic63ee1cace0012ad570db25447ced752bddd7f86
Reviewed-on: https://pdfium-review.googlesource.com/28150
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@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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Skip a lot of work that will all fail anyway.
BUG=chromium:838347
Change-Id: Iba45120e436b5547e106feb27dadea92cc948258
Reviewed-on: https://pdfium-review.googlesource.com/32053
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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The current implementation of the GIF codec does not handle the file
cursor moving backwards correctly. Specifically the input buffer that
the data is being read into is not invalidated, so if the entirity of
the buffer hasn't been consumed, a chunk of it will be moved to the
front before reading in more data, which is just
incorrect. Additionally, depending on the specific series of
operations, it is possible that the buffer was allocated for more
space then had been read into it and the uninitialized portion at the
end is being copied to the beginning.
The file cursor may move backwards when dealing with an animated gif
or other image with multiple frames, since all of the control data is
read in on load, and future calls specify what frame to fetch. The
code has been changed to treat the input buffer as invalid when moving
the cursor to a frame location, which will bypass any of the
problematic unused saving behaviour. A call to std::min has been added
to prevent allocation of an input buffer larger then the file size.
Additionally this CL refactors GifReadMoreData to be clearer about
what calculations are occuring, since the existing code reuses a
number of vaguely named variables, making it difficult to follow.
BUG=chromium:839348, chromium:839361
Change-Id: I2865658187bdf30bcad13ef4cac4f51a8966db11
Reviewed-on: https://pdfium-review.googlesource.com/32054
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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Diagnostic for the associated bug, not a bugfix. Helps rule out one
possible scenario.
Bug: chromium:838886
Change-Id: Ia56fda779407daf8e52a8b754800154fd7491ae7
Reviewed-on: https://pdfium-review.googlesource.com/32055
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
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Change-Id: Iaca5983f080d8a05d2d4e9f79c335c4ebcdc6899
Reviewed-on: https://pdfium-review.googlesource.com/31994
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
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When setting up an XFA document we need to create a font manager. That
font manager requires the CFGAS_FontMgr to be provided, and ASSERTs to
that fact. It's possible for the CFGAS_FontMgr to be nullptr if we fail
to enumerate the system fonts.
This CL verifys we can get the needed manager and fails out of the XFA
OpenDoc method if we have no font manager.
Bug: chromium:835693
Change-Id: I806f265075dcc355e0a7aeb4b3ae8eb950aa5eee
Reviewed-on: https://pdfium-review.googlesource.com/32052
Commit-Queue: dsinclair <dsinclair@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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When processing items for layout it's possible for the iBlockIndex*3
value could be larger then the field split count. If this is the case
we'll walk off the end of the split array.
This CL verifys that we have enough data before attempting to walk the
splits and returns early if we don't have enough data.
Bug: chromium:837585
Change-Id: I534298b4ee354ce079442d893202f811431155a0
Reviewed-on: https://pdfium-review.googlesource.com/32051
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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Rather than messing with actual inheritence, add type-checking wrappers
and just blatantly cast to incomplete types. Along the way, this points
out places where we would downcast without checking, which I fix.
Change-Id: Ieb303eb46ad8522dfe082454f1f10f247ffd52d5
Reviewed-on: https://pdfium-review.googlesource.com/32030
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
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In turn, add CPDF_Document::Extension::GetPDFDoc() so that we can
use the abstract return type in more places.
Mark an internal-only cpdfxfa_context method as private while we're
at it.
Change-Id: I08e64f4b9438bf2f731c3a37cf2a41152bbbd8fa
Reviewed-on: https://pdfium-review.googlesource.com/31916
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Small oversight. Gets type safety.
Change-Id: I669c2c990fdf9013f4bc4835738132ed76e734b8
Reviewed-on: https://pdfium-review.googlesource.com/31991
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Removed many null checks since XFA_RectWithoutMargin already checks
if the margin is null internally.
Change-Id: I21f5101fe38559eb02f4c3aaf081ff29ce293e47
Reviewed-on: https://pdfium-review.googlesource.com/31993
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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Change-Id: I1bfada610b8bf2e1f8e0f79a9421db9ebedc7311
Reviewed-on: https://pdfium-review.googlesource.com/32010
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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Change-Id: Ic19b91f91f08b1867437b22de04a2c54045ce8ae
Reviewed-on: https://pdfium-review.googlesource.com/31992
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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BUG=pdfium:1007
Change-Id: Ib8aecf2e4833f22a4288f6e1381edc11d114c865
Reviewed-on: https://pdfium-review.googlesource.com/31952
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
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Remove some default parameters while we're at it.
Change-Id: Ifa51f580d9773ca9cf8d08016361a0283b2d4794
Reviewed-on: https://pdfium-review.googlesource.com/31953
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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Change-Id: I192f2d0f5e0d61ff09d2e32bafa4e7518573e14e
Reviewed-on: https://pdfium-review.googlesource.com/31951
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: 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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All usages were prepending the "Today" string, so move it inside
GetTodayText().
Change-Id: I454fb683c9507e76b61bf69ca29a0ee9b49f1a58
Reviewed-on: https://pdfium-review.googlesource.com/31970
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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Change-Id: Ifbcb727402c1c28a6e8abe02511d6da6828c02f7
Reviewed-on: https://pdfium-review.googlesource.com/31915
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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When we fail to parse an XFA document we would free the XML document
that is created immediately. This causes issues because the XML nodes
may have been set into the CXFA_Document already. This CL changes
ParseDoc to always save the XMLDocument and then triggers the CloseDoc()
logic if the ParseDoc method fails.
This should properly cleanup any resources on a failed document load.
Bug: chromium:837578
Change-Id: I8af7e6e34e3b756455c58ea50b22af414ffa6cbf
Reviewed-on: https://pdfium-review.googlesource.com/31710
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@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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Change-Id: I1088abd4ce8f6276043213218867c4d6fb0a46a9
Reviewed-on: https://pdfium-review.googlesource.com/31914
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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Return a CFX_Size instead.
Change-Id: I3bef1093fbc887237aa69dc942f878af27b4e8e9
Reviewed-on: https://pdfium-review.googlesource.com/31911
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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BUG=chromium:837972
Change-Id: I6cfa28bff38870419e4b1e2bced427cfcbf843cd
Reviewed-on: https://pdfium-review.googlesource.com/31912
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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A previous CL removed the need to these inclusions.
Change-Id: Idedbb1905317e90a94935884d12dbec8245e1122
Reviewed-on: https://pdfium-review.googlesource.com/31913
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
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Another virtual API at the CPDF layer, to avoid a compile time
ifdef XFA.
Change-Id: Ia95c4d3b3d3b773aaf45c49ebcadff6b16ca18c6
Reviewed-on: https://pdfium-review.googlesource.com/31910
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Change-Id: I4039917c5342f6a4c6568029a293066901bb5db4
Reviewed-on: https://pdfium-review.googlesource.com/31870
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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Replaces one compile-time #ifdef XFA with a dynamic check and
a call through a virtual API that prevents the CPDF code from
knowing anything about the XFA code.
Change-Id: If0ff9b6918b908b3eac824fe1d525c6d4f7316e7
Reviewed-on: https://pdfium-review.googlesource.com/31890
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
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This is an obstacle to introducing dummy CPDF_Pages to underly all
CPDFXFA_Pages, since we would then have a parserless CPDF_Page, whose
parse could never succeed or fail. The m_ParseState would never change,
and if the caller dutifully recalls us until that changes, we hang.
Small separate CL since it might impact non-XFA cases unexpectedly.
Change-Id: I002064e5d4caa44935f50bde0f3b00e3b8cb0bfe
Reviewed-on: https://pdfium-review.googlesource.com/31850
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
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Change-Id: I3ed6cbadeb9da756b30634b48ffdd1026a70b8a0
Reviewed-on: https://pdfium-review.googlesource.com/31853
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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Change-Id: Ib5f8b8754bca8198d9122700d7d876b45d1428da
Reviewed-on: https://pdfium-review.googlesource.com/31852
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
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Bug: pdfium:751
Change-Id: I125fbb0dd8ff4a382c4cec33a29c52a97e67de23
Reviewed-on: https://pdfium-review.googlesource.com/31851
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Henrique Nakashima <hnakashima@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 was a bug introduced in a refactor a long, long time ago.
A line was removed (probably unintentionally).
https://chromiumcodereview.appspot.com/2435603003/diff/40001/xfa/fxfa/app/xfa_fwltheme.cpp
Bug: pdfium:751
Change-Id: I0e3d094a543bd0e31010a8093387906d62c0a5dc
Reviewed-on: https://pdfium-review.googlesource.com/31830
Reviewed-by: dsinclair <dsinclair@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
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Use strict typing for FPDF_Page to ensure we don't fall into
code that expects the other page type when continuing from null
context case.
Change-Id: I7f028ef3e3d733f5557620030a87e22997da00d5
Reviewed-on: https://pdfium-review.googlesource.com/31770
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Greatly minimize the impact between going back and forth from
XFA being on/off, so that XFA case is just an extension beyond
the non-XFA data structures we've shipped for years, instead of
being a complete replacement of them.
Change-Id: I6c98206e0ec99ea443547a4931eba912b1764d54
Reviewed-on: https://pdfium-review.googlesource.com/31690
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
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Similar tp CPDF_Document::Extension, this is a base type for fpdfsdk/
to use to improve layering.
While we're at it, make pages point to documents to prove they don't
outlive them.
Another small step towards not passing XFA objects across FPDF.
Change-Id: Idcee9da3a18c06331fa56f3d6c188e4ce27d34f2
Reviewed-on: https://pdfium-review.googlesource.com/31631
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Tom Sepez <tsepez@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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Bug: chromium:838095
Change-Id: I21de7cf88c995446049faa3d688a286faa117868
Reviewed-on: https://pdfium-review.googlesource.com/31754
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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Track the decode state in one data structure. Also grab pointers to data
structure members before tight loops when decoding. It turns out
referring to this->foo in tight loops can actually slow down decoding.
Change-Id: I6a09b08ca06ef05968966055b5ad20f8c89896af
Reviewed-on: https://pdfium-review.googlesource.com/31790
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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- Mark them private when possible.
- Disambiguate method names.
- Make method names match the style guide.
- Pass in rects by reference.
Change-Id: I0bf848756e81a92d20e46a81cd6260b660eaf482
Reviewed-on: https://pdfium-review.googlesource.com/31772
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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Change-Id: I183a53d08f5da73d788c92b53382e3fac3b823e2
Reviewed-on: https://pdfium-review.googlesource.com/31671
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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Change-Id: Ie5bea82757682390b274ad2da77d1686cc597046
Reviewed-on: https://pdfium-review.googlesource.com/31657
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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