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2018-05-24CPDF_HintTables should not try to read 0 bits.Lei Zhang
CFX_BitStream::GetBits() got refactored recently, with an assert to not read 0 bits. A fuzzer then discovered code that is trying to do that. BUG=chromium:846394 Change-Id: Ib18b47200c82aab369109b5911540db724172690 Reviewed-on: https://pdfium-review.googlesource.com/32934 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-05-22Make friend RetainPtr<T> statements consistently public.Lei Zhang
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>
2018-05-17Update third_party/base/compiler_specific.h.Lei Zhang
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>
2018-05-16Use pdfium::span<> in cpdf_crypto_handler.hTom Sepez
Remove some unused args along the way. Change-Id: I234a674d4d6cc79b33087bc850f5df36bae25870 Reviewed-on: https://pdfium-review.googlesource.com/32596 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-05-16Use pdfium::span<> in cpdf_creator.Tom Sepez
Change-Id: I959fe5dc30fcfe2176c7e5a64b07d082313a22b4 Reviewed-on: https://pdfium-review.googlesource.com/32595 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-05-09Add proper const/non-const versions of CPDF_Array methods.Lei Zhang
Instead of having const methods that return non-const pointers. BUG=pdfium:234 Change-Id: I61495543f67229500dfcf2248e93468e9a9b23cf Reviewed-on: https://pdfium-review.googlesource.com/32183 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2018-05-09Add proper const/non-const versions of CPDF_Object methods.Lei Zhang
Instead of having const methods that return non-const pointers. BUG=pdfium:234 Change-Id: I598e9b4f267f702e2e71001cfe3aa3c9e9d8c12f Reviewed-on: https://pdfium-review.googlesource.com/32182 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2018-05-09Mark numerious pointers as const.Lei Zhang
They are mostly CPDF_Object* and derived classes, but others that should be are marked const as well. Change-Id: Ib3344d7d8db90940df8edc97c0dd6c59da080541 Reviewed-on: https://pdfium-review.googlesource.com/32180 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2018-05-08Rename CPDF_Document::GetPage() to GetPageDictionary().Tom Sepez
Avoids a conflict should we wish to have the document actually track pages, with a GetPage() that returns CPDF_Page. Do the same thing to CPDF_DataAvail along the way. Add some missing consts as well. Change-Id: I2cb2213cc4c0649662fceab80407ee4a3f4cf30e Reviewed-on: https://pdfium-review.googlesource.com/32158 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-05-07Move codepage tables from cpdf_document.cpp to fx_codepage.cppTom Sepez
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>
2018-05-03Add CPDF_Page::Extension::GetDocExtension()Tom Sepez
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>
2018-05-02Add CPDF_Document::Extension::GetPageCount()Tom Sepez
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>
2018-05-01Add CPDF_Document::Extension::DeletePage()Tom Sepez
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>
2018-05-01Make FPDF_Document always be CPDF_Document.Tom Sepez
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>
2018-04-27Avoid potential duplicate unique_ptr to CPDF_Document from CPDFXA_Context.Tom Sepez
Should FPDFDocumentFromCPDFDocument() be called several times under XFA, we may WrapUnique() the document several times. So cache a pointer back from CPDF_Document to CPDFXFA_Context to avoid this. Because of layering, introduce a placeholder type CPDF_Document::Extension. This is actually the first step in some larger XFA ownership cleanup, but makes a nice standalone CL around the one particular issue. Change-Id: I4be326ddb1a5fae7339e6ed6745dd551b1374b53 Reviewed-on: https://pdfium-review.googlesource.com/31570 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-04-26Replace some c-style cast with static_cast<>Tom Sepez
Change-Id: I9dd6a36770f77f3df6c4395572785d37402eadc2 Reviewed-on: https://pdfium-review.googlesource.com/31350 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-04-25Replace reinterpret_cast with static_cast where possibleTom Sepez
Change-Id: Ic62f1def8e043494c9fa6c08a937d7d872513567 Reviewed-on: https://pdfium-review.googlesource.com/31314 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-04-25Introduce ScopedFPDF types in public/cpp/fpdf_scopers.hTom Sepez
Applies std::remove_ptr to the public API types so that we can deduce a correct unique ptr type no matter how that API might change away from void* usage. Creates shorter names for std::unique_ptr<std::remove_pointer<>, ...> Change-Id: I04a0ff43cb7d5a4d3867939a53a54c9cef00db86 Reviewed-on: https://pdfium-review.googlesource.com/31292 Reviewed-by: Lei Zhang <thestig@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-04-25Remove unused PNGEncode() code.Lei Zhang
BUG=pdfium:41 Change-Id: I98070a5a6c88a0769f2b571eae4fe62092f7dfcd Reviewed-on: https://pdfium-review.googlesource.com/31232 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-04-23Disable JavaScript entirely if no JSPlatform passed by embedder.Tom Sepez
Allows run-time selection of whether to permit JS inside PDF. Previously, this was a link-time decision only. This requires a little more caution before we decide that we have the CJS_Runtime, and not the CJS_RuntimeStub in a few casts. Adds a kDisableJavaScript option to the form fill embeddertests. Adds a --disable-javascript flag to the pdfium_test executable. Also adds a --disable-xfa flag while we're at it. Change-Id: I8d8ac95f6474459cadba9a60572fbb342e984646 Reviewed-on: https://pdfium-review.googlesource.com/31090 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-04-17Re-land "Return pdfium::span<char> from ByteString::GetBuffer().""Tom Sepez
This reverts commit 3d523e3cf89440e2ffc6571b1c687ad5e3f0318f. Fixes bounding errors now caught by tests. Change-Id: I4d0f1791bdcc45a10615a62abf7a4d20e7e538f2 Reviewed-on: https://pdfium-review.googlesource.com/30799 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-04-17Add constants for PDF 1.7 spec, table 3.4.Lei Zhang
Add constants/stream_dict_common.h. The header lists all the constants in the table in the same order. Constants that are not used at all are commented out. BUG=pdfium:1049 Change-Id: I6539090e0ad56319ea628883e388aeacef044e52 Reviewed-on: https://pdfium-review.googlesource.com/29090 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-04-17Reland "Return pdfium::span<wchar_t> from WideString::GetBuffer().""Tom Sepez
This reverts commit 0d32b8fda53e02c1036d39f7290d4f59f2b58ca4. Restore behaviour on trunk. TBR: dsinclair@chromium.org Change-Id: Ia867f09ae9d2885595c4d9b300a058431dfd84f2 Reviewed-on: https://pdfium-review.googlesource.com/30811 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-04-16Revert "Return pdfium::span<wchar_t> from WideString::GetBuffer()."Tom Sepez
This reverts commit 154e18f9a862975abecebe77b8f5fb418418d14c. Reason for revert: Generate CL to merge to beta branch Original change's description: > Return pdfium::span<wchar_t> from WideString::GetBuffer(). > > Adds bounds checking "for free", but beware of span outliving > a ReleaseBuffer() call. Scoping as such avoids the possibility > of using an invalid span (and it is flagged as a lifetime issue). > > Change-Id: Ica63f4b1429823d0254ec6951aeaeb08160cb93c > Reviewed-on: https://pdfium-review.googlesource.com/30310 > Reviewed-by: dsinclair <dsinclair@chromium.org> > Commit-Queue: Tom Sepez <tsepez@chromium.org> TBR=tsepez@chromium.org,dsinclair@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. Change-Id: Ie1ec9434215584a024538ca8edeb59dea555af48 Reviewed-on: https://pdfium-review.googlesource.com/30830 Reviewed-by: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-04-16Put prototypes of PDF_NameEncode/Decode in fpdf_parser_utility.hTom Sepez
Because the implementations are in fpdf_parser_utility.cpp Add unit test for both. Change-Id: Ibae90ecbe625a035c450614ddbe7f5969f9f92aa Reviewed-on: https://pdfium-review.googlesource.com/30793 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-04-16Revert "Return pdfium::span<char> from ByteString::GetBuffer()."Tom Sepez
This reverts commit 80a6cbe0a427e155de8555bc867af745d10f9777. Reason for revert: too many abrts in beta branch. TBR: dsinclair@chromium.org Bug: 832557, 832978, 832992, 833062, 833097 Change-Id: I7d511dbb224ddc644be96ea2f3770ad6f73debf5 Reviewed-on: https://pdfium-review.googlesource.com/30792 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-04-12Return pdfium::span<char> from ByteString::GetBuffer().Tom Sepez
Get bounds checking "for free". Change-Id: I7b14cacbc7130ced7b5cb1869b82c96ccff8e642 Reviewed-on: https://pdfium-review.googlesource.com/30451 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-04-12Return pdfium::span<wchar_t> from WideString::GetBuffer().Tom Sepez
Adds bounds checking "for free", but beware of span outliving a ReleaseBuffer() call. Scoping as such avoids the possibility of using an invalid span (and it is flagged as a lifetime issue). Change-Id: Ica63f4b1429823d0254ec6951aeaeb08160cb93c Reviewed-on: https://pdfium-review.googlesource.com/30310 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-04-12Make CFX_Font take FX_RECT out params by pointer.Lei Zhang
Change-Id: I6643aaf66bf3e9d53d5afab5c99a5cb7deab3661 Reviewed-on: https://pdfium-review.googlesource.com/30054 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-04-09Use pdfium::span<> in CFX_BitStream, CPDF_SimpleParser.Tom Sepez
Get bounds checks in parsers automatically when using spans. Change-Id: I71fbe7b838435d455376db2f89817d807a9cdcfd Reviewed-on: https://pdfium-review.googlesource.com/29830 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-04-05Ignore bad data in the shared object hint table.Lei Zhang
Currently this is being treated as a case of "data not available" which leads to an infinite loop. BUG=pdfium:1055 Change-Id: I2722a5b364d56a4ad5b7cca2a4b42e6b13a933f4 Reviewed-on: https://pdfium-review.googlesource.com/29831 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-04-03Re-arrange so inline vectors come last in structs.Tom Sepez
This might make the memory tools more effective in finding OOBs. Change-Id: Id093bb0a88c37954c80d612ac00b5a168e75bdbf Reviewed-on: https://pdfium-review.googlesource.com/29550 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-04-03Off-by-one in CPDF_StreamParser::ParseNextElement()Tom Sepez
Limit the token to 255 bytes + NUL. Also, shuffle fields in cpdf_streamparser to allow memory tools to better check this inline array. Bug: 828049 Change-Id: I444f2b4c6958167577d9cd76c06805baf7d5c26c Reviewed-on: https://pdfium-review.googlesource.com/29530 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2018-03-28Use CPDF_DefaultAppearance instead of custom parsingDan Sinclair
This CL moves code over to using CPDF_DefaultAppearance instead of calling the CPDF_SimpleParser directly. This means the code for finding a specific tag start can move into CPDF_DefaultAppearance directly. Change-Id: I1dc64e54aedd03d059b963121d466f3eb75c17db Reviewed-on: https://pdfium-review.googlesource.com/28410 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2018-03-28Use ByteStringView in parsersDan Sinclair
This CL converts the CPDF_SimpleParser to accept a ByteStringView. Several of the callers of SimpleParser are also updated to use a ByteStringView instead of <char*,size>. Change-Id: Ic2df3a06f92e77b53745a0419b44368142f9d8e6 Reviewed-on: https://pdfium-review.googlesource.com/29351 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2018-03-28Remove ByteString PDF_NameDecodeDan Sinclair
This CL removes the ByteString version of PDF_NameDecode and forces the callers to use the ByteStringView variant. Change-Id: I5a955d8e909e2045ee45843af54b23e98abe00ed Reviewed-on: https://pdfium-review.googlesource.com/29350 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2018-03-08Remove unused constructordan sinclair
Unused. Removed. Change-Id: I493a98b22c343d44834d3648e4ef2fe9978f88b1 Reviewed-on: https://pdfium-review.googlesource.com/28250 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-03-08Cleanup CPDF_SimpleParserdan sinclair
Minor code cleanup. Change-Id: Ibc3ea17d270de517058c41e9b466bc8fb042ecd7 Reviewed-on: https://pdfium-review.googlesource.com/28230 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-02-10Renable -Wimplicit-fallthrough for PDFium.Nico Weber
Didn't find any bugs, but also doesn't require much boilerplate. Bug: TODO Change-Id: I5f30183c55216f1333c79fcb46476d281720873e Reviewed-on: https://pdfium-review.googlesource.com/26210 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Nico Weber <thakis@chromium.org>
2018-02-09Get rid of EmbedderTest::RenderPageDeprecated().Lei Zhang
Change-Id: I8c6d813e488b2612a85fb1973382f979728df563 Reviewed-on: https://pdfium-review.googlesource.com/25571 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-02-07Remove some deprecated RenderPage method usage.Lei Zhang
Do some additional checks in test cases where pages were rendered but the resulting bitmap was immediately destroyed. Change-Id: I2f4678140cdc672ab4ced70f748135464447ff59 Reviewed-on: https://pdfium-review.googlesource.com/25510 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-02-07Clean up RenderPage methods in EmbedderTest.Lei Zhang
Add replacement methods that make themselves clear as to what they are rendering, and return unique_ptrs to help prevent leakage. Mark existing methods deprecated. Change-Id: I9055407e614dfbe765428fb32a7da64df3418d1d Reviewed-on: https://pdfium-review.googlesource.com/25470 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-02-05Make EmbedderTest class member style consistent.Lei Zhang
The class started with |foo_bar_| but now has a mixture of |foo_bar_| and |m_FooBar|. Change them all to |foo_bar_|. While making this change, also initialize the members in the header when possible. Change-Id: I202ff5dc5e945175ad4da2f3245724f3493aa8aa Reviewed-on: https://pdfium-review.googlesource.com/25390 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-01-30Guard usages of tellp(). It may return -1 in error cases.Henrique Nakashima
Change-Id: I064ddcad8671b9ade2c02142a6c2c2983846e3a9 Reviewed-on: https://pdfium-review.googlesource.com/24650 Commit-Queue: Henrique Nakashima <hnakashima@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-01-24Fix some nits in CPDF_Parser.Lei Zhang
Change-Id: Ib4c6589a63761e8993e8cd33ed9459ba3d1e206c Reviewed-on: https://pdfium-review.googlesource.com/23911 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2017-12-20Avoid default arguments in EmbedderTest::OpenDocument().chromium/3300Lei Zhang
Default arguments are banned on virtual functions. Remove default arguments and rename OpenDocument() to OpenDocumentWithOptions(). Add wrappers for OpenDocumentWithOptions() to call it with sensible options. Change-Id: I4955d88cf77a7eab1771692ea3d6a18260b52900 Reviewed-on: https://pdfium-review.googlesource.com/21891 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2017-12-19Remove some dead code.Lei Zhang
Change-Id: I8edb14c024860c66b5e6c014136393e71e38387d Reviewed-on: https://pdfium-review.googlesource.com/21570 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2017-12-12Use early returns in pdf_parser_decode.cpp.Lei Zhang
Also add a GetUnicodeFromBytes() helper function and use FX_INVALID_OFFSET more often. Change-Id: I3b0954e0cad31a600b0a990360ab370186c792d6 Reviewed-on: https://pdfium-review.googlesource.com/20850 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2017-12-11Remove default arguments to CPDF_StreamAcc::LoadAllData().Lei Zhang
Add LoadAllDataFiltered() and LoadAllDataRaw() and update callers. Change-Id: I9b80ee34a358db204968acdc8b1adc9db0b6b83f Reviewed-on: https://pdfium-review.googlesource.com/20810 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2017-12-11Slightly simplify CPDF_StreamAcc::LoadAllData().Lei Zhang
Also initialize members in the header. Change-Id: Ic1cda7f9ef4c69e26604c706678aed24bf4e8ee3 Reviewed-on: https://pdfium-review.googlesource.com/20790 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>