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This CL removes m_pTrailer in favor of having them all in a vector, and
having an index that points to the position of the previous m_pTrailer
in the vector.
Bug: pdfium:787
Change-Id: Ieebbf4849f7ea78f8f74d188e3adb3446a53482e
Reviewed-on: https://pdfium-review.googlesource.com/7040
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Nicolás Peña <npm@chromium.org>
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This still won't work if the info dict is not on the first page
without first calling FPDFAvail_IsFormAvail or FPDFAvail_IsPageAvail,
as these are the methods that trigger parsing the rest of the data.
Bug: pdfium:664
Change-Id: I0b0193e415a1153dcfb8bfba0e0482da6b6ba53c
Reviewed-on: https://pdfium-review.googlesource.com/6610
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
Reviewed-by: Nicolás Peña <npm@chromium.org>
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CPDF_Parser::StartParse should release the current encrypt dict
before trashing it by calling RebuildCrossRef() at cpdf_parser.cpp:195.
This gives rise to the pattern that calls to ReleaseEncryptHandler()
are followed by SetEncryptDict(nullptr), so just move the later into
the former.
Bug: 726503
Change-Id: I38bc81f0c0416812035a8a2541c09e875f1fb49a
Reviewed-on: https://pdfium-review.googlesource.com/6030
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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Remove an explicit clear to re-order the member
destruction order.
Change-Id: I33da3f3de4b8e8e0cfbdceaf5140e98f5d6f904a
Reviewed-on: https://pdfium-review.googlesource.com/5791
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
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There are places where an object "child" has a raw pointer
back to object "owner" with the understanding that owner will
always outlive child.
Violating this constraint can lead to use after free, but this
requires finding two paths: one that frees the objects in the
wrong order, and one that uses the object after the free. The
purpose of this patch is to detect the constraint violation
even when the second path is not hit.
We create a template that is used in place of TYPE*. It's dtor,
when a memory tool is present, goes out and probes the first
byte of the object to which it points. Used in "child", this
allows the memory tool to prove that the "owner" is still alive
at the time the child is destroyed, and hence the constraint is
never violated.
Change-Id: I2a6d696d51dda4a79ee2f00a6752965e058a6417
Reviewed-on: https://pdfium-review.googlesource.com/5475
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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- FXSYS_toDecimalDigit() becomes FXSYS_DecimalCharToInt().
- FXSYS_toHexDigit() becomes FXSYS_HexCharToInt().
Change-Id: If4683e8f85f05124b92ff075056cbc295442087d
Reviewed-on: https://pdfium-review.googlesource.com/4930
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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Change-Id: Ic31d9cda5e919a754162e14e69cb63671a3fe8b9
Reviewed-on: https://pdfium-review.googlesource.com/4794
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
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This CL prevents arbitrary position setting which may cause integer overflows.
In the bug in question, the PDF says the xrefs are located in a huge position.
This then causes problems when calling CPDF_SyntaxParser methods.
Bug: chromium:603545
Change-Id: I5f94c38f46a0217e9f12f1bf8b2f3bee3b03cb35
Reviewed-on: https://pdfium-review.googlesource.com/4813
Commit-Queue: Nicolás Peña <npm@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
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The CFX_MemoryStream is the only implementation of IFX_MemoryStream.
This CL removes the interfaces and uses CFX_MemoryStream directly.
Change-Id: I2f43fa39e82dafa7673517d214ae15fd2d0df331
Reviewed-on: https://pdfium-review.googlesource.com/4391
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
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This CL cleans up the fx_extension file. The stream code was moved to
fx_stream. IFX_FileAccess was removed and CFX_CRTFileAccess split to its
own file. Code shuffled from header to cpp file.
Change-Id: I700fdfcc9797cf4e8050cd9ba010ad8854feefbf
Reviewed-on: https://pdfium-review.googlesource.com/4371
Reviewed-by: Nicolás Peña <npm@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
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Avoid tracking ownership via m_bLocalCryptoHandler.
Also remove m_bEncryptCloned, as it is always false.
Replace some methods with direct calls to underlying code.
Change-Id: Ifa9d6f721c59d07e3b8e258f76832ca9f2ea0fc9
Reviewed-on: https://pdfium-review.googlesource.com/4111
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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Combine some common CCodec_Jbig2Module code.
Change-Id: I9a046314bc0e9dddc9a8c1a06b37764e9f3cc4b6
Reviewed-on: https://pdfium-review.googlesource.com/3713
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Nicolás Peña <npm@chromium.org>
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Pass stream argument to constructor; it feels like a
stream accessor should always be made from a stream rather
than passing one in after the fact.
Change-Id: Iaa46cb37677b81f0170f5d39bab76ad38ea4af44
Reviewed-on: https://pdfium-review.googlesource.com/3620
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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This Cl drops the FXSYS_ from mem methods which are the same on all
platforms.
Bug: pdfium:694
Change-Id: I9d5ae905997dbaaec5aa0b2ae4c07358ed9c6236
Reviewed-on: https://pdfium-review.googlesource.com/3613
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
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Change-Id: I96e0a20d66b9184d22f64d8e4ce0dadd5a78c1e8
Reviewed-on: https://pdfium-review.googlesource.com/2967
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
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Also use unique_ptr in one spot while we're at it.
Review-Url: https://codereview.chromium.org/2625483002
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Be suspicious of |new|. This removes some of the
easy cases.
Review-Url: https://codereview.chromium.org/2571913002
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We can remove a lot of "bOwnsStream" logic in the process.
Always pass these by const reference, in case the called method
wants to hang on to the stream (one exception is where we stick
a raw pointer into a void* slot in a context from another layer).
Review-Url: https://codereview.chromium.org/2451493002
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Also remove a bool that is always false.
Review-Url: https://codereview.chromium.org/2539203002
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Return these from underlying methods as appropriate.
Review-Url: https://codereview.chromium.org/2520133002
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Some changes were required to match underlying ctors
as invoked by the templated methods.
Many release() calls go away, a few WrapUniques() are
introduced to avoid going deeper into other code.
Review-Url: https://codereview.chromium.org/2510223002
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For the first page in linearized PDFs, it is not necessary to load the
main xref table, because it have separate special xref table in the file
header.
This decreasing the time to show first page in PDF plugin.
Review-Url: https://codereview.chromium.org/2483633002
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Because that's what clone does. There are numerous
release() calls that will go away as more code is
converted.
Review-Url: https://codereview.chromium.org/2484033002
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Otherwise, we might be silently doing an unsafe cast before
applying the check if the actual argument doesn't match the
exact src type.
Review-Url: https://codereview.chromium.org/2484953003
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Follow-up from ParseIndirectObject() CL. This will get
cleaner once CPDF_Object::Clone itself returns unique_ptrs.
Pack some bools together while we're at it.
Review-Url: https://codereview.chromium.org/2479353002
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In turn, propgate to callers. This introduces a few
release() calls that will go away as more code is converted.
It also removes a couple of WrapUnique calls that are no
longer needed as ownership of the object flows along.
Review-Url: https://codereview.chromium.org/2479303002
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My OCD insists that classes be named after nouns, and "linearized"
feels like an adjective.
Remove a redundant "if" while at it.
Review-Url: https://codereview.chromium.org/2482973002
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Unify some code
Move parsing of linearized header into separate CPDF_Linearized class.
Original review:
https://codereview.chromium.org/2466023002/
Revert review:
https://codereview.chromium.org/2474283005/
Revert reason was:
Breaking the chrome roll.
See https://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_rel_ng/builds/331856
___
Added Fix for fuzzers.
Review-Url: https://codereview.chromium.org/2477213003
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https://codereview.chromium.org/2466023002/ )
Reason for revert:
Breaking the chrome roll. See https://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_rel_ng/builds/331856
Original issue's description:
> Unify some code
>
> Move parsing of linearized header into separate CPDF_Linearized class.
>
> Committed: https://pdfium.googlesource.com/pdfium/+/71333dc57ac7e4cf7963c83333730b3882ab371f
TBR=thestig@chromium.org,brucedawson@chromium.org,art-snake@yandex-team.ru
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
Review-Url: https://codereview.chromium.org/2474283005
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Move parsing of linearized header into separate CPDF_Linearized class.
Review-Url: https://codereview.chromium.org/2466023002
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Review-Url: https://codereview.chromium.org/2477003002
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This reverts commit f0d5b6c35fa343108a3ab7a25bc2cc2b3cf105b3.
Review-Url: https://codereview.chromium.org/2478303002
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Removes a path where it might not have taken ownership of an object,
at the expense of making callers check first. This eases making
the second argument an unique_ptr someday.
Review-Url: https://codereview.chromium.org/2475823002
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#11 id:200001 of https://codereview.chromium.org/2384883003/ )
Reason for revert:
Looks like it's blocking the roll.
https://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_compile_dbg_ng/builds/186619
Original issue's description:
> Remove CPDF_Object::Release() in favor of direct delete
>
> Follow-on once we prove Release always deletes in previous CL.
>
> Committed: https://pdfium.googlesource.com/pdfium/+/4de3d095c9d9e961f93750cf1ebd489fd515be12
TBR=thestig@chromium.org,tsepez@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
Review-Url: https://codereview.chromium.org/2478253002
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Follow-on once we prove Release always deletes in previous CL.
Review-Url: https://codereview.chromium.org/2384883003
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Review-Url: https://codereview.chromium.org/2477443002
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It's been troubling for some time that an IFX_FileStream might
actually be an in-memory buffer with no backing file.
Review-Url: https://codereview.chromium.org/2443723002
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This reverts commit 1d023881cd53485303c0fcc0b5878e700dc470fd.
Reason for revert -- fuzzers hit issues.
TBR=thestig@chromium.org
Review-Url: https://codereview.chromium.org/2425783002
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This reverts commit 3ba098595ae56b64eacc0c25ab76b89a4d78d920.
TBR=thestig@chromium.org,weili@chromium.org
Review URL: https://codereview.chromium.org/2424533003 .
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Doing so highlights a few places where ownership is dubious.
Add convenience functions to return an unowned reference to
a newly-created indirect object.
Review-Url: https://codereview.chromium.org/2419173002
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This tweaks the implementation while leaving the API the
same. The API change is more disruptive, so break this
part off first.
Review-Url: https://codereview.chromium.org/2385293002
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They won't work with std::unique_ptr down the road, so replace
with std::vector.
Review-Url: https://codereview.chromium.org/2411703003
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Split this off so that we don't keep losing this when
the assert is reverted again.
Review-Url: https://codereview.chromium.org/2401423005
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This reverts commit b69a98cf50537130f88ce3a799117f2ca8353ac5.
Reason for revert: crashes on mac.
BUG=654387
TBR=thestig@chromium.org
Review-Url: https://codereview.chromium.org/2410483002
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This reverts commit b73c99335bfbd158ad16dd59c9c52396ffd2b54b.
TBR=thestig@chromium.org
Review-Url: https://codereview.chromium.org/2393783004
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BUG=pdfium:603
Review-Url: https://codereview.chromium.org/2392603004
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