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2017-08-23Convert string Find methods to return an OptionalRyan Harrison
The Find and ReverseFind methods for WideString, WideStringC, ByteString, and ByteStringC have been converted from returning a raw FX_STRSIZE, to returning Optional<FX_STRSIZE>, so that success/failure can be indicated without using FX_STRNPOS. This allows for removing FX_STRNPOS and by association makes the conversion of FX_STRSIZE to size_t easier, since it forces checking the return value of Find to be explictly done as well as taking the error value out of the range of FX_STRSIZE. New Contains methods have been added for cases where the success or failure is all the call site to Find cared about, and the actual position was ignored. BUG=pdfium:828 Change-Id: Id827e508c8660affa68cc08a13d96121369364b7 Reviewed-on: https://pdfium-review.googlesource.com/11350 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-08-23Remove useless code.Artem Strygin
Change-Id: Ie1fa04cdcdd426cf76413e7e5fe714ba7922458c Reviewed-on: https://pdfium-review.googlesource.com/11713 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-08-23Unify CPDF_DataAvail::CheckEnd.Artem Strygin
Use read validator to check "startxref" availability. Change-Id: I258a707e4269fe768898d74db0955302b34ccf34 Reviewed-on: https://pdfium-review.googlesource.com/11711 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-08-23Unify CPDF_DataAvail::CheckHeader.Artem Strygin
Use read validator to check header availability. Change-Id: Ib482347cb2f112e27a6bcc4e8da865d0ecf1a630 Reviewed-on: https://pdfium-review.googlesource.com/11710 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-08-23Simplify Trailers usage in CPDF_Parser.Artem Strygin
Do not store non main trailers in memory. Improve readability. Change-Id: I2eab5d31a5be056871e7e5953e4b38662b91f5ae Reviewed-on: https://pdfium-review.googlesource.com/10750 Commit-Queue: Art Snake <art-snake@yandex-team.ru> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-08-21Unify cross ref item check.chromium/3193Artem Strygin
Change-Id: I7c68d0f5a668019d23bbeebc66373f9b245f91a2 Reviewed-on: https://pdfium-review.googlesource.com/9551 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Art Snake <art-snake@yandex-team.ru>
2017-08-21Remove useless code.Artem Strygin
Change-Id: Idd656dcf372c0b8ed515a4e0635b5098c0781d76 Reviewed-on: https://pdfium-review.googlesource.com/10991 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-08-16Fix potential OOM / integer overflow in CPDF_Parser.Lei Zhang
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>
2017-08-15Remove useless code.Artem Strygin
Change-Id: I2c5ea6a0c4487c0200229f4709214bda1f287de8 Reviewed-on: https://pdfium-review.googlesource.com/10990 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-08-14Refactoring of CPDF_DataAvail::GetObject.Artem Strygin
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>
2017-08-14Add CPDF_ObjectWalker.Artem Strygin
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>
2017-08-14Refactoring of CPDF_DataAvail::AreObjectsAvailable.chromium/3186Artem Strygin
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>
2017-08-09Add a FPDF_GetFileVersion() test for a linearized document.Lei Zhang
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>
2017-08-09Remove useless code.Artem Strygin
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>
2017-08-09Unify initialization of CPDF_Parser.Artem Strygin
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>
2017-08-09Unify of saving documents.chromium/3181Artem Strygin
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>
2017-08-09Unify CPDF_Parser::ParseIndirectObjectAtXXX methods.Artem Strygin
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>
2017-08-08Add validator into CPDF_SyntaxParser.Artem Strygin
Change-Id: I7fe8dcd8854e2f08b7b0ee53bde6c864108142ff Reviewed-on: https://pdfium-review.googlesource.com/9571 Reviewed-by: Lei Zhang <thestig@chromium.org>
2017-08-04Remove CFX_ByteTextBuf from cpdfsdk_interform.cpp and others.chromium/3177Henrique Nakashima
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>
2017-08-04Revert "Remove CFX_ByteTextBuf from cpdfsdk_interform.cpp and others."Henrique Nakashima
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>
2017-08-03Remove CPDF_Array::Truncate().chromium/3176Lei Zhang
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>
2017-08-03Do not truncate the filter array in PDF_DataDecode().Lei Zhang
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>
2017-08-03Avoid a redundant header offset check in CPDF_Parser.Lei Zhang
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>
2017-08-02Replace CFX_ByteTextBuf from cpdf_security_handler.cpp with std::vectorHenrique Nakashima
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>
2017-08-02Unify parsing of cross refs v4Artem Strygin
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>
2017-08-02Remove CFX_ByteTextBuf from cpdfsdk_interform.cpp and others.Henrique Nakashima
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>
2017-08-01Add public access for read stream into CPDF_SyntaxParserArtem Strygin
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>
2017-08-01Improve readability in CPDF_Parser::ObjectInfo.Artem Strygin
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>
2017-08-01Implement read Session.Artem Strygin
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>
2017-08-01Change CPDF_Parser::GetIndirectBinary() to return a std::vector.Lei Zhang
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>
2017-08-01Remove support for negative params to ReleaseBuffer()Ryan Harrison
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>
2017-08-01Replace raw value for constant error value in string operationsRyan Harrison
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>
2017-08-01Prevent use of null pFileRead in CPDF_DataAvail.chromium/3174Artem Strygin
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>
2017-07-28Add CPDF_Stream::ReplaceData method.chromium/3170Artem Strygin
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>
2017-07-28Return removed value from dictionary.Artem Strygin
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>
2017-07-28Implement read validator.Artem Strygin
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>
2017-07-26Remove recursion from CPDF_DataAvail::HaveResourceXXX.Artem Strygin
Change-Id: Iacac67bce99b4b4bcc303fb388aaf03f2f99e4f3 Reviewed-on: https://pdfium-review.googlesource.com/9070 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-07-26Remove useless code.Artem Strygin
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>
2017-07-20Use enum for pdf object typeArtem Strygin
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>
2017-07-19Rename StringCs c_str() to unterminated_c_str().Tom Sepez
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>
2017-07-19Use CFX_WideString in CPDF_NameTree functions to strip BOMchromium/3162Jane Liu
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>
2017-07-13Add Embeddertest for password after savingchromium/3157Nicolas Pena
This CL allows TestSaved to open password-protected and linearized documents properly. It also adds a test with one such document. BUG= pdfium:787 Change-Id: Ie0da7f290711505fb208794afdc737c36e84dd3c Reviewed-on: https://pdfium-review.googlesource.com/7034 Commit-Queue: Nicolás Peña <npm@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-07-10Roll FreeType to c56d8851ea987023cc73981a70d261b3f6427545chromium/3156chromium/3155chromium/3154Nicolas Pena
Bug: chromium:738919 Change-Id: I2ea99a47f45e2e68650bd1fa9ad7554d8df79874 Reviewed-on: https://pdfium-review.googlesource.com/7351 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
2017-07-07core: fix -Wshadow warningschromium/3153Miklos Vajna
Found with this patch: diff --git a/BUILD.gn b/BUILD.gn index 83bad1b13..444685f04 100644 --- a/BUILD.gn +++ b/BUILD.gn @@ -89,6 +89,8 @@ config("pdfium_core_config") { "/wd4324", "/wd4577", ] + } else { + cflags += [ "-Wshadow" ] } } But renaming the conflicting names is tricky, so done with clang-rename. Change-Id: Ie959b86e9e82b11b211761b0c73e439e51044de7 Reviewed-on: https://pdfium-review.googlesource.com/7410 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2017-06-28Keep all trailers in CPDF_Parser in m_TrailersNicolas Pena
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>
2017-06-27Add overload for CPDF_Stream.SetData() that takes an ostringstream.Henrique Nakashima
Bug: pdfium:731 Change-Id: Ie65bafc644cff076b0d7aadcc5d0b0e33e2c199b Reviewed-on: https://pdfium-review.googlesource.com/7035 Commit-Queue: Henrique Nakashima <hnakashima@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-06-23Cleaning up fx_string_testhelpers.Henrique Nakashima
This is unused except for being a pathway for indirect deps. Change-Id: I717290235ccbc59429ad24231033382958e2a086 Reviewed-on: https://pdfium-review.googlesource.com/6910 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
2017-06-20Cleanup fpdf_parser_decodeNicolas Pena
This CL fixes some nits in fpdf_parser_decode, especially avoiding non-const reference parameters. Change-Id: Ibb914850afd924bb398f886ac862f7589519ef7e Reviewed-on: https://pdfium-review.googlesource.com/6750 Commit-Queue: Nicolás Peña <npm@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-06-19Fixing metadata not read from linearized file.chromium/3136Henrique Nakashima
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>
2017-06-13Allow zero length streams when parsing.chromium/3130Dan Sinclair
It's possible to create a stream of length 0 in a PDF document. Currently the code will early exit and return a nullptr. This causes issues when you want to print the given PDF as the FPDF_ImportPages code ends up only generating up to the zero length object. This CL allows creating streams with length 0 and updates the PDF saving code to output a blank stream. Bug: chromium:732380 Change-Id: I44182ba4aaac7c51284b002ba01bbc34b6bcf9e0 Reviewed-on: https://pdfium-review.googlesource.com/6490 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
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