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The count passed into ParseAndAppendCrossRefSubsectionData() may be
invalid.
BUG=chromium:752796
Change-Id: Ic7bbfd16761d1df0855e6c77e4abc68823b12395
Reviewed-on: https://pdfium-review.googlesource.com/11130
Reviewed-by: Art Snake <art-snake@yandex-team.ru>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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Added FPDFImageObj_GetImageMetadata() for retriving the image metadata
of image objects, including its dimension, DPI, bits per pixel, and
colorspace.
* Added a corresponding embedder test.
Bug=pdfium:677
Change-Id: I4229334d1ac2125b21a46e2e44ea937ea2e94b51
Reviewed-on: https://pdfium-review.googlesource.com/10110
Reviewed-by: Lei Zhang <thestig@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Jane Liu <janeliulwq@google.com>
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Change-Id: I2c5ea6a0c4487c0200229f4709214bda1f287de8
Reviewed-on: https://pdfium-review.googlesource.com/10990
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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This method duplicates the behaviour of the const [] operator and
doesn't offer any additional safety. Folding them into one
implementation.
SetAt is retained, since implementing the non-const [] operator to
replace SetAt has potential performance concerns. Specifically many
non-obvious cases of reading an element using [] will cause a realloc
& copy.
BUG=pdfium:860
Change-Id: I3ef5e5e5a15376f040256b646eb0d90636e24b67
Reviewed-on: https://pdfium-review.googlesource.com/10870
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
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Use ReadValidator to request exact data on object read.
Change-Id: I1d1863097fa2b037e1bb2e4e89b93d26c5d8e066
Reviewed-on: https://pdfium-review.googlesource.com/10510
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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It is allow us to walk on all non-null sub-objects
in an object in depth, include itself,
Change-Id: Ia23051073984411668112422b47cf7a4460aa078
Reviewed-on: https://pdfium-review.googlesource.com/8910
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Use ReadValidator to request exact data on object read.
Change-Id: Ie6c3f452e119fa3514e77f1824473c33bb6b855a
Reviewed-on: https://pdfium-review.googlesource.com/10491
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Specifically the index parameter passed in to GetAt(), SetAt() and
operator[] are now being tested to be in bounds.
BUG=chromium:752480, pdfium:828
Change-Id: I9e94d58c98a8eaaaae53cd0e3ffe2123ea17d8c4
Reviewed-on: https://pdfium-review.googlesource.com/10651
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
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Bug: pdfium:857
Change-Id: Ic1fb12459cad79b45466df10a24fe6743377ae14
Reviewed-on: https://pdfium-review.googlesource.com/10612
Reviewed-by: Nicolás Peña <npm@chromium.org>
Commit-Queue: Nicolás Peña <npm@chromium.org>
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Change the CPDFParserEmbeddertest.Feature_Linearized_Loading test case
into FPDFViewEmbeddertest.LinearizedDocument, and add a call to
FPDF_GetFileVersion().
Change-Id: I0272c1e71c6f61393838bd3db41b154c4f5620ba
Reviewed-on: https://pdfium-review.googlesource.com/10450
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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The CPDF_Parser::IsVersionUpdated is not used anymore.
Change-Id: I896c42daca3c5bed7b9d700eaea6ced686ab5acb
Reviewed-on: https://pdfium-review.googlesource.com/10490
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Move syntax parser initialization in separate method.
Change-Id: I701284b1fee26a474c24ca68948a3462cc68faec
Reviewed-on: https://pdfium-review.googlesource.com/10291
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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In the original code the method of writing of objects depends on a much unpredictable factors:
as:
1) Is there an updated version of the at least one object in the document.
2) The password is changed.
3) Was this object loaded earlier.
4) The Object is compressed and document have a password.
With these factors it is difficult to predict what will be the final file.
To reduce volatility use only one method that works in all cases mentioned.
This method is parse then serialize.
Change-Id: I3d7dcadd10abffbad68d1f993f2dd60b039ed989
Reviewed-on: https://pdfium-review.googlesource.com/9572
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Change-Id: I9ee1da4d0a9751dae8d595b610cf77c074c22cdc
Reviewed-on: https://pdfium-review.googlesource.com/10350
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
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Change-Id: I7fe8dcd8854e2f08b7b0ee53bde6c864108142ff
Reviewed-on: https://pdfium-review.googlesource.com/9571
Reviewed-by: Lei Zhang <thestig@chromium.org>
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New version of the CL that include fpdf_parser_utility.cpp where
there is an overload for CFX_ByteTextBuf << CPDF_Object* used by
CFDF_Document.
Bug: pdfium:731
Change-Id: I54f4e9ee7e10e94388f6f6584f3999f43689e84c
Reviewed-on: https://pdfium-review.googlesource.com/10170
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
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This reverts commit aea80dcc0abc0c310316fa502f91a359bc684758.
Reason for revert: WriteBuf's behavior was altered
Original change's description:
> Remove CFX_ByteTextBuf from cpdfsdk_interform.cpp and others.
>
> Bug: pdfium:731
> Change-Id: I61d38ab3f2b0ac68b8479ade25bab50f3a73c27b
> Reviewed-on: https://pdfium-review.googlesource.com/9770
> Reviewed-by: Tom Sepez <tsepez@chromium.org>
> Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
TBR=tsepez@chromium.org,hnakashima@chromium.org,rharrison@chromium.org
# Not skipping CQ checks because original CL landed > 1 day ago.
Bug: pdfium:731
Change-Id: Ic66a2641c259173fb3792f7a4206e19ee4707fc9
Reviewed-on: https://pdfium-review.googlesource.com/10150
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
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Added FPDFImageObj_GetImageDataDecoded() for retrieving the uncompressed
data of an image, and FPDFImageObj_GetImageDataRaw() for retrieving the
raw data of an image.
* Refactored out DecodeStreamMaybeCopyAndReturnLength(), which is
used to decode both attachment data and image data.
* Within DecodeStreamMaybeCopyAndReturnLength(), used a different
decoder function which takes care of multiple filters if exist. As
a result, CPDF_StreamParser::DecodeInlineStream() which was made
static previously is now moved back into namespace.
Bug=pdfium:677
Change-Id: I22a22c99acaca98ef8c15f88911f2646a2c854d5
Reviewed-on: https://pdfium-review.googlesource.com/9811
Commit-Queue: Jane Liu <janeliulwq@google.com>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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The only non-test caller is gone.
Change-Id: I261bc6d97c3047b2935d7b663c1a5f7d15670714
Reviewed-on: https://pdfium-review.googlesource.com/10010
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
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It is not needed to fix https://crbug.com/552046 and it causes different
bug.
BUG=chromium:750993
Change-Id: I11627045bd3e73fb439884c3362ab1c26eb95fe3
Reviewed-on: https://pdfium-review.googlesource.com/9990
Reviewed-by: Oliver Chang <ochang@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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CPDF_Parser::StartLinearizedParse() calls StartParse(), but already
knows the PDF header offset. Refactor StartParse() so it does not have
to look for the header again.
Change-Id: Id8cc39301ae72da868dafc53921622d5b28ce26e
Reviewed-on: https://pdfium-review.googlesource.com/9830
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Art Snake <art-snake@yandex-team.ru>
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Bug: pdfium:731
Change-Id: I63532e06aa2c135f34a6adda24ae1cfbc5922ac9
Reviewed-on: https://pdfium-review.googlesource.com/9871
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
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Change-Id: I7e3d45263a0bae61fd86fd4c3710de7fc0b9347d
Reviewed-on: https://pdfium-review.googlesource.com/9290
Reviewed-by: Wei Li <weili@chromium.org>
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
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The existing behaviour was to clamp the provided index to the valid
bounds. This would lead to programming errors being hidden, since
inserting would still do something even if the index calculation was
wrong. The behaviour of these methods has been changed to instead
early return when this occurs, returning the old length value. The
caller can check if the call to Insert actually did anything by
comparing the returned value to the length before calling insert.
All of the existing calls to Insert have been tested by running all of
the tests with asserts in the Insert method to check the index is in
bounds. Additionally the call sites have been manually inspected. The
majority of them are of the form Insert(0, foo) and the rest tend to
be in a loop advancing from 0 to length.
Convenience methods InsertAtFront/InsertAtBack have been added to
handle calling Insert when the intent is for the character to be added
to the beginning or end of the string. Existing call sites to Insert
that do this have been converted.
This work was originally being performed to check if there would be
any issues in these methods with making FX_STRSIZE unsigned.
BUG=pdfium:828
Change-Id: I60cee5ad45338aa8ed46569de7bcc78a76db18f7
Reviewed-on: https://pdfium-review.googlesource.com/9870
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
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Instead of passing in a CPDF_PageObject* and then converting it to an
image, which is always what it is.
Change-Id: I146a476147f4b344417982b5ace002b9bd7b3d80
Reviewed-on: https://pdfium-review.googlesource.com/9810
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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Callers removed in commit 4b78b18.
Change-Id: I6eec6ba18712040180b12d56b59c6a8379de4379
Reviewed-on: https://pdfium-review.googlesource.com/9750
Reviewed-by: Nicolás Peña <npm@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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Bug: pdfium:731
Change-Id: I61d38ab3f2b0ac68b8479ade25bab50f3a73c27b
Reviewed-on: https://pdfium-review.googlesource.com/9770
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
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Change-Id: I5deb6049db41387ac030a6ba5296ee6187120190
Reviewed-on: https://pdfium-review.googlesource.com/9470
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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Make CPDF_Parser::ObjectInfo::pos a union, since the data is used as an
object number when the object is compressed.
Change-Id: Id7c32759f7411cc80285bb7f3088b5aa6ff5bf05
Reviewed-on: https://pdfium-review.googlesource.com/9570
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
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Helper for validate read problems locally,
Change-Id: I2bfbbaab8a67c0fd0cee3dadcd0f9cad5953101c
Reviewed-on: https://pdfium-review.googlesource.com/9552
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
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Fixes potential leaks in CPDF_Creator::WriteOldIndirectObject(), the
only caller.
Change-Id: I8a20da8a555c8d28f3bcd467a193a6a81c9f91d9
Reviewed-on: https://pdfium-review.googlesource.com/9751
Reviewed-by: Art Snake <art-snake@yandex-team.ru>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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This CL removes the default param value for this method, which was
negative. It also adds in a method to get buffer lengths, so that the
callsites can explictly passing in the length of the buffer if they
were using the default value previously.
BUG=pdfium:828
Change-Id: I0170771ee81970b8b601631015ab3e6e39fea8ea
Reviewed-on: https://pdfium-review.googlesource.com/9790
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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Currently Find() and other methods that return a FX_STRSIZE return -1
to indicate error/failure. This means that there is a lot of magic
numbers and magic checks floating around. The standard library for
similar operations uses a npos constant. This CL implements
FX_STRNPOS, and replaces usages of magic number checking. It also does
some type cleanup along the way where it was obvious that FX_STRSIZE
should be being used.
Removing the magic numbers should make eventually changing FX_STRSIZE
to be unsigned easier in the future.
BUG=pdfium:828
Change-Id: I67e481e44cf2f75a1698afa8fbee4f375a74c490
Reviewed-on: https://pdfium-review.googlesource.com/9651
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
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Change-Id: I52e668ca410a0c6b96a789ecc18c993152047ead
Reviewed-on: https://pdfium-review.googlesource.com/9550
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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Bug: pdfium:839
Change-Id: I3a069bf7d8a75f32cf9bcc9e9926ad19aa006795
Reviewed-on: https://pdfium-review.googlesource.com/9650
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
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Change-Id: I94b2e8f6fd522b97c917037e32fb3bcbeea0cbeb
Reviewed-on: https://pdfium-review.googlesource.com/8911
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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The various string/byte classes support Mid(), Left(), and Right() for
extracting substrings. Mid() can handle all possible cases, but Left()
and Right() are useful for common cases and more explicit about what
is going on.
Calls like Mid(offset, length - offset) can be converted to
Right(length - offset). Calls like Mid(0, length) can be converted to
Left(length).
If the substring being extracted does not extend all the way to one of
the edges of the string, then Mid() still needs to be used.
BUG=pdfium:828
Change-Id: I2ec46ad3d71aac0f7b513e103c69cbe8c854cf62
Reviewed-on: https://pdfium-review.googlesource.com/9510
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
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Change-Id: I218179565cd991b71fd9c909b94f967bbf80c74d
Reviewed-on: https://pdfium-review.googlesource.com/8912
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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The wrapper for IFX_SeekableReadStream.
Which allow us to check data availability on read request
and request downloading of non available data on fly.
Change-Id: I27c66cd58f43f8432f73104cc3f4c980515a9b56
Reviewed-on: https://pdfium-review.googlesource.com/9050
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
Reviewed-by: (OOO Jul 28 - Aug 8) dsinclair <dsinclair@chromium.org>
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This support is being removed from CFX_ByteString, CFX_ByteStringC,
CFX_WideString, and CFX_WideStringC. This standardizes all of these
classes to only have one Mid method that takes in 2 params, offset and
count. Count now must be positive. The old behaviour of calculating
the length for the user if -1 is passed in for the count has been
removed. This work is in preperation for converting these classes to
not accept negative lengths anywhere and thus make the underlying size
type unsigned.
BUG=pdfium:828
Change-Id: I5f15e7b7b00b264231817f143e2da88ee6f69e7b
Reviewed-on: https://pdfium-review.googlesource.com/9430
Reviewed-by: (OOO Jul 28 - Aug 8) dsinclair <dsinclair@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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Change-Id: Iacac67bce99b4b4bcc303fb388aaf03f2f99e4f3
Reviewed-on: https://pdfium-review.googlesource.com/9070
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Change-Id: Ibb7e33dddd79d6266961ebdf56600fc5a091dcb8
Reviewed-on: https://pdfium-review.googlesource.com/9071
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Most calls to the Skia Driver combine flushing
the draw cache with deleting the driver itself.
Progressive drawing needs to flush the cache to
keep drawing in order, but the driver must remain
for the next progressive draw.
R=dsinclair@chromium.org, hnakashima@chromium.org
Bug: pdfium:833
Change-Id: I311f80b2dc0ef6e4df9a3a0f082ae076cb7a591f
Reviewed-on: https://pdfium-review.googlesource.com/8890
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
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The use of Ready makes more sense then Reader for the constants. Rename
and deprecate the old one.
Bug: pdfium:830
Change-Id: I80b970f29a21068b41993c1880d81d406c3108e0
Reviewed-on: https://pdfium-review.googlesource.com/8790
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
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Replace uint8_t type to enum for ObjectType variables
Change-Id: Ie33c8c9413c5082397a2c6fbf73e03f08b7d8658
Reviewed-on: https://pdfium-review.googlesource.com/8470
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Since there is no guarantee of termination if the StringC was
extracted from a snippet of another string. Make it more obvious
that things like
strlen(str.unterminated_c_str())
might be a bad idea.
Change-Id: I7832248ed89ebbddf5c0bcd402aac7d40ec2adc2
Reviewed-on: https://pdfium-review.googlesource.com/8170
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
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PDFium doesn't strip BOMs during parsing, but we should strip BOMs when
retrieving parsed strings in CPDF_NameTree to ensure consistency and
appropriate function behavior. See the bug for more info.
As outlined in Bug=pdfium:593, the solution is to call GetUnicodeText()
instead of GetString(). I added a GetUnicodeTextAt() function in
CPDF_Array, which is symmetrical to GetUnicodeTextFor() in
CPDF_Dictionary.
I then changed the input variable types to CPDF_NameTree functions to
be CFX_WideString instead of CFX_ByteString, and modified all the
calls to them.
I also added a unit test for nametree, which would fail prior to this
change. Nametrees with non-unicode names are already tested by embedder
tests.
Bug=pdfium:820
Change-Id: Id69d7343632f83d1f5180348c0eea290f478183f
Reviewed-on: https://pdfium-review.googlesource.com/8091
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Jane Liu <janeliulwq@google.com>
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1. Added API for extracting attachment properties and data.
* Expanded the embedder test to cover all the new APIs.
Bug=pdfium:174
Change-Id: I09bffd412410e9aea45faca442d2b72eefafef4e
Reviewed-on: https://pdfium-review.googlesource.com/7790
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
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This CL adds a FPDF_RENDER_TOBECONTINUED and marks
FPDF_RENDER_TOBECOUNTINUED as deprecated.
Change-Id: Ie08dbb2715d1d7959fbae17d9f23d7fcec410600
Reviewed-on: https://pdfium-review.googlesource.com/8070
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
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In this CL, CPDF_MeshStream::ReadVertexRow returns a vector. The vector
size is not allocated in advance to prevent OOM attacks, since the size
is given as an input to the PDF.
Bug: chromium:735248
Change-Id: I3e2b020896f24715af5dfd9aa18768e6d64d6f76
Reviewed-on: https://pdfium-review.googlesource.com/7950
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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