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2017-05-16Introduce CFX_UnownedPtr to detect lifetime inversion issues.Tom Sepez
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>
2017-05-01Remove more |new|s, part 5Tom Sepez
Many of these are already unique_ptrs. Change-Id: I3695d4ff5a8f7483ad994ac7657897fd55069cd5 Reviewed-on: https://pdfium-review.googlesource.com/4690 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-04-20Convert IFX_MemoryStream to CFX_MemoryStreamDan Sinclair
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>
2017-04-20Cleanup the fx_extension code.Dan Sinclair
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>
2017-04-19Cleanup codepage and charset definitions.Dan Sinclair
This Cl cleans up the unused defines in fx_codepage.h. The FXFONT_CHARSET_ defines are replaced with fx_codepage defines, this moves fx_codepage into core instead of xfa only. Static asserts are added to verify the public/ charsets match the fx_codepage charsets. Change-Id: Ie2f749e093de60a9a6743128a1fb087912e4cc96 Reviewed-on: https://pdfium-review.googlesource.com/4316 Commit-Queue: dsinclair <dsinclair@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org>
2017-04-19Move CFGAS_Stream to CFX_SeekableStreamProxyDan Sinclair
This CL moves the FGAS stream code into core/fxcrt and renames to CFX_SeekableStreamProxy. Change-Id: I6641fe0cca45a128ef3ec281b0b40f8d60296387 Reviewed-on: https://pdfium-review.googlesource.com/4311 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org>
2017-04-18Rename IFGAS_Stream to CFGAS_StreamDan Sinclair
This CL replaces IFGAS_Stream with the only implementation CFGAS_Stream. The CreateReadStream and CreateWriteStream methods are removed in favour of calling MakeRetain directly. Change-Id: I882a89258f642e24fc3d631587db05652bd53ded Reviewed-on: https://pdfium-review.googlesource.com/4210 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-04-18Codepage code into anonymouse namespaceDan Sinclair
This CL moves the FX_GetCodePageFromCharset method into cfgas_fontmgr anonymouse namespace. Change-Id: I1232341b8639328035f12aebfb7a65a4fc0ba08f Reviewed-on: https://pdfium-review.googlesource.com/4291 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-04-12Remove MakeSeekableReadStreamDan Sinclair
This Cl removes the MakeSeekableReadStream call and, at the one place it's used, creates an IFX_MemoryStream which is a seekable read stream. Change-Id: I6b0b23636eff47f8caca5432313ba99703e21e4d Reviewed-on: https://pdfium-review.googlesource.com/4037 Reviewed-by: Nicolás Peña <npm@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-04-03Drop FXSYS_ from mem methodsDan Sinclair
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>
2017-04-03Drop FXSYS_ from wide string methodsDan Sinclair
This Cl drops the FXSYS_ from wide string methods which are the same on all platforms. Bug: pdfium:694 Change-Id: I46a7af5913e7897f7c4ba712a76540c12105818f Reviewed-on: https://pdfium-review.googlesource.com/3611 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-03-31Pull in FreeType via DEPS instead.Lei Zhang
BUG=pdfium:688 Change-Id: I7787b29d0fedc48f1360ab041d43829d0e805462 Change-Id: I7787b29d0fedc48f1360ab041d43829d0e805462 Reviewed-on: https://pdfium-review.googlesource.com/3331 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org>
2017-03-30Remove unnecessary FreeType include.Dominik Röttsches
BUG=706824 Change-Id: I7f2138689d8e0d93fcb100c0215c8cf6bde427de Reviewed-on: https://pdfium-review.googlesource.com/3392 Commit-Queue: Dominik Röttsches <drott@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org>
2017-03-30Fix Chromium XFA buildDominik Röttsches
Remove unnecessary FreeType include. BUG=chromium:706824 Change-Id: If3006a047e9431d6bf4111da867a998994034f56 Reviewed-on: https://pdfium-review.googlesource.com/3391 Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
2017-03-30Rename fgas_stream to ifgas_streamDan Sinclair
This Cl renames the the fgas_stream files to match the internal ifgas_stream class. The majority of the code in ifgas_stream.cpp is moved into the anonymouse namespace. Change-Id: I0518103d61df077782d9ab26d0ac87485417f379 Reviewed-on: https://pdfium-review.googlesource.com/3370 Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-03-23Cleanup some xfa/fxfa code.Dan Sinclair
This CL moves the .h files to have names corresponding to the contained classes. The .cpp files are moved alongside the .h files. Any extra classes in the .h files have been split into their own files. Change-Id: I14b4efc02417f0df946500e87b6c502e77020db8 Reviewed-on: https://pdfium-review.googlesource.com/3160 Reviewed-by: Tom Sepez <tsepez@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-03-15Remove unused methods and data from fgas_codepageDan Sinclair
The methods are not called, so the data is not used. Removed. Change-Id: I29e904da2a000fd5173d2f5240ad377613db200a Reviewed-on: https://pdfium-review.googlesource.com/3050 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-03-15Replace FX_POSITION in GFGAS_FontMgr with boolDan Sinclair
Change-Id: Iddd99312aee6447c05be5633eead023a004e65e1 Reviewed-on: https://pdfium-review.googlesource.com/3034 Reviewed-by: Nicolás Peña <npm@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-03-14Replace FX_CHAR and FX_WCHAR with underlying types.Dan Sinclair
Change-Id: I96e0a20d66b9184d22f64d8e4ce0dadd5a78c1e8 Reviewed-on: https://pdfium-review.googlesource.com/2967 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-03-13Replace discrete array with a map.dan sinclair
There is one use of the discrete array, GFGAS_GEFont. This CL replaces that usage with a std::map and removes the fgas_util classes. Change-Id: Ic45812168e9487ebac08abaa131c58080a949d69 Reviewed-on: https://pdfium-review.googlesource.com/2953 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-03-02Use std::deque for CFX_FontDescriptorsTom Sepez
Change-Id: Ic6edc7740513075c2a738cc8897460af17bb0103 Reviewed-on: https://pdfium-review.googlesource.com/2895 Commit-Queue: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-03-02Remove CFX_MassArrayTemplate<CFX_Rect> backing array.Tom Sepez
The map is one-to-one, so no need for a pointer to an externally stored rect. Change-Id: I4cd6f728cdadeb4c7b25b6f34f5d50bb5db89623 Reviewed-on: https://pdfium-review.googlesource.com/2896 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-03-01Fix font manager negation issueDan Sinclair
In https://codereview.chromium.org/2559903002 we refactored the font manager in XFA but got part of the negation wrong. Fixup logic. Change-Id: Idd51ff846fe64a56908ec26bf2798c1df8433611 Reviewed-on: https://pdfium-review.googlesource.com/2891 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-02-13Simplify FX_UTF8Encode variants.chromium/3012Tom Sepez
Doing so reveals places where there are needless copies and conversions. Change-Id: I24a868d40aa63836f4167eaf4541964049df7916 Reviewed-on: https://pdfium-review.googlesource.com/2555 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-02-08Update to use CFX_Rect{F} and CFX_Matrix constructors.Dan Sinclair
This Cl updates the code to use the constructors instead of creating an empty object and calling Set(). It also removes the various memsets of the CFX_Rect{F} classes. Change-Id: I6e20cec00866a38372858dcba5a30d31103172e4 Reviewed-on: https://pdfium-review.googlesource.com/2550 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-01-17Avoid endless loop deleting CFGAS_GEFont.tsepez
It's a ref-counted class, so if we're in the destructor, the ref count has hit zero. We can't make a new ref pointer to itself here, as it will re-invoke the destructor when it goes out of scope. This should have been an obvious anti-pattern in hindsight. The object in question can't be in the m_pFontManager, since the font manager retains a reference, and we wouldn't get to this destructor while that is present. So the cleanup isn't required. Fixing this revealed a free-delete mismatch in cxfa_textlayout.cpp. I also converted to use unique_ptrs in a few places near this issue. Fixing this revealed a UAF in CFGAS_GEFont, memcpy'ing a RetainPtr is not a good idea as it doesn't bump the ref count. Also protect and friend the CFGAS_GEFont destructor, to make sure random deletes don't happen. Also kill off a const cast, and remove unnecessary conversion to retain_ptr when we already have one. TEST=look for absence of -11 in XFA corpus test logs, bots not currently noticing the segv. Argh. Review-Url: https://codereview.chromium.org/2631703003
2017-01-10Strip out custom allocator codeDan Sinclair
This Cl replaces the custom IFX_MemoryAllocator code with new/delete as needed. Change-Id: Ie786f607c9e0b3035ffd87733bc3e29a4b6426d9 Reviewed-on: https://pdfium-review.googlesource.com/2164 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-01-10Remove more _LP* typedefs.tsepez
Code is much clearer when we use the actual types rather than this convention. Review-Url: https://codereview.chromium.org/2618993002
2017-01-09Tidy cfgas_fontmgr, remove custom sorting code.tsepez
Review-Url: https://codereview.chromium.org/2610813010
2017-01-06Remove CFX_MapPtrToPtr in xfa/fgas, part 2tsepez
Review-Url: https://codereview.chromium.org/2616623005
2017-01-05Properly ref-count CFGAS_GEFont with CFX_RetainPtr.tsepez
We worry about cyclical references, but no leaks found. Review-Url: https://codereview.chromium.org/2609423003
2016-12-08Replace CFX_WideStringArray with std::vectortsepez
Minimalist changes with the tidying of the code to use better loop iterators as a follow-up. Review-Url: https://codereview.chromium.org/2556963004
2016-12-07Replace CFX_ByteStringArray with std::vector.tsepez
Also convernt one nearby array to vector as well. Review-Url: https://codereview.chromium.org/2559903002
2016-12-07Properly ref count IFX_FileAccess.tsepez
Review-Url: https://codereview.chromium.org/2562563002
2016-12-07Refcount IFGAS_ streams all the time, tootsepez
IFGAS_Streams are not part of the IFX_Stream hierarchy, but can be made from such. Review-Url: https://codereview.chromium.org/2559763002
2016-12-07Refcount all the IFX_ stream classes all the time.tsepez
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
2016-12-02Rename IFX_Stream to IFGAS_Stream.tsepez
It's a separate hierarchy unrelated to the IFX_*Stream classes. Also rename CFX_Stream to CFGAS_Stream, and so forth. Review-Url: https://codereview.chromium.org/2535723010
2016-12-02Tidy fx_stream.htsepez
Group related IFX_ classes. Move #defines to .cpp file that uses them. Replace loose function with static method. Review-Url: https://codereview.chromium.org/2548583004
2016-11-30Convert loose FX_Create* functions into static methodstsepez
Also remove a bool that is always false. Review-Url: https://codereview.chromium.org/2539203002
2016-11-21Clean up CFGAS_GEFontnpm
Removed some unused method, named files properly, cleaned up a bit. Review-Url: https://codereview.chromium.org/2524493002
2016-11-21Fixup lint flags.Dan Sinclair
The -build/include setting was masking out build/include_what_you_use. This CL restores them, fixes any build errors, and adds NOLINT as needed. As well, the runtime/explicit and runtime/printf flags are aslo enabled and NOLINT'd. lint cleanups Change-Id: Ib013b3eb29c8d0e48cad74c5df9028684130719f Reviewed-on: https://pdfium-review.googlesource.com/2030 Reviewed-by: Tom Sepez <tsepez@chromium.org>
2016-11-18Clean up CFGAS_FontMgrchromium/2925npm
Review-Url: https://codereview.chromium.org/2512213002
2016-11-11Remove IFGAS_FontMgr and clean up (the renamed) CFGAS_FontMgr a little.npm
IFGAS_FontMgr is an interface only for a class only defined on Windows, plus a class only defined for non-Windows. I'm removing the interface, renaming the class to have the same name in both cases, and cleaning up a bit of unused methods. Review-Url: https://codereview.chromium.org/2494883002
2016-11-02Remove FX_BOOL from xfa.tsepez
Review-Url: https://codereview.chromium.org/2467203003
2016-10-24Rename IFX_ stream nameschromium/2900tsepez
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
2016-10-13Clean up fx_basic_util a littlenpm
- Nit fixes. - Remove unused methods. - Replace FX_BOOL with bool. Review-Url: https://codereview.chromium.org/2419433004
2016-09-29Move xfa/fxfa/include to xfa/fxfadsinclair
BUG=pdfium:611 Review-Url: https://codereview.chromium.org/2383593002
2016-09-29Move core/fxge/include to core/fxgedsinclair
BUG=pdfium:611 Review-Url: https://codereview.chromium.org/2377393002
2016-09-29Move core/fxcrt/include to core/fxcrtdsinclair
BUG=pdfium:611 Review-Url: https://codereview.chromium.org/2382723003
2016-09-26Clean up xfa_fontmgr.cpp.thestig
Review-Url: https://codereview.chromium.org/2362063003
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