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2017-08-03APIs and tests for retrieving raw/decoded data from image objectsJane Liu
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>
2017-08-03APIs and tests for extracting bitmaps from image objectsJane Liu
Added FPDFImageObj_GetBitmap() that returns the bitmap of an image object, and a FPDFBitmap_GetFormat() that returns the format of a bitmap. * Fixed a small bitmap conversion bug in cfx_dibsource.cpp. * Enabled EmbedderTest::CompareBitmap() to support different formats of bitmaps. * Added an embedder test and a test PDF file with images of many different formats. Bug=pdfium:677 Change-Id: I6a72f9d969cf5f3577db9400ca33197c213622ed Reviewed-on: https://pdfium-review.googlesource.com/9690 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Jane Liu <janeliulwq@google.com>
2017-08-03kill some stray __native_client__ definesTom Sepez
There isn't any work to NaCl PDFium at the moment, and it would take a lot more than these few changes. Change-Id: I6c4bf5f38bbfb9cf4f5a5688128c7720c38a8ce4 Reviewed-on: https://pdfium-review.googlesource.com/10050 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@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 with ostringstream in cfx_psrenderer.cpp.Henrique Nakashima
Bug: pdfium:731 Change-Id: Iac887a8d3485b5511ec7f3d809efeb8af6ea9ce7 Reviewed-on: https://pdfium-review.googlesource.com/9930 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
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>
2017-08-02Remove unused FromUnicode methodRyan Harrison
A helper method for FromUnicode existed that converted wchar_t* to CFX_WideString before calling the remaining FromUnicode. This method is not used in the code base, so it has been removed. This simplifies converting FX_STRSIZE to be unsigned, since one of parameters to this method was of type FX_STRSIZE. BUG=pdfium:828 Change-Id: I3da677b84ac3b82ba48497e26d2ac80dd14302e6 Reviewed-on: https://pdfium-review.googlesource.com/9910 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Ryan Harrison <rharrison@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 parameter from GetIDRyan Harrison
All of the call sites for this method used the default value, so it has been removed. This simplifies converting FX_STRSIZE to be unsigned, since the removed parameter was of this type. BUG=pdfium:828 Change-Id: I369285aed561731ab34ec6d30de0d21fb3431492 Reviewed-on: https://pdfium-review.googlesource.com/9891 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-08-02Remove support for out of bounds params in DeleteRyan Harrison
The existing implementation of Delete on the string classes handles some cases where the range being deleted is out of bounds by clipping it to the valid range. This behaviour can lead to programming problems in the calling code being masked by the fact the Delete method still does something. The new version of these methods does an early return if the parameters are invalid. This change also effectively removes support for negative string sizes from the Delete method, so converting FX_STRSIZE to be unsigned will be easier. BUG=pdfium:828 Change-Id: Idbb4a62f70a75eba06e7809e011b25da2d7404c4 Reviewed-on: https://pdfium-review.googlesource.com/9890 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-08-02Rewrite how string Insert() methods handle out of bound indicesRyan Harrison
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>
2017-08-02Pass a CPDF_ImageObject* into CPDF_ImageRenderer::Start().Lei Zhang
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>
2017-08-02Remove unused CPDF_FlateEncoder ctor.Lei Zhang
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>
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>
2017-08-01Encapsulate some CFX_Char members.Lei Zhang
Change-Id: Iab34de5858ae06582023be220ef7dd0d1d0a91c9 Reviewed-on: https://pdfium-review.googlesource.com/9530 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Nicolás Peña <npm@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>
2017-07-31Initialize CPDF_PathObject members on constructor.Henrique Nakashima
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>
2017-07-28Use FX_GetUnicodeProperties() in more places.chromium/3173chromium/3172chromium/3171Lei Zhang
Instead of accessing the raw kTextLayoutCodeProperties data. Change-Id: Ie39cf5c098e1564ae2f18d76b234af42f24db4ca Reviewed-on: https://pdfium-review.googlesource.com/9451 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Nicolás Peña <npm@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>
2017-07-28Convert calls to Mid() to Left() or Right() if possibleRyan Harrison
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>
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>
2017-07-27Simplify FX_GetMirrorChar() code.Lei Zhang
Change-Id: I43ec0d4a3b60d51c59ba5a540dfe24803e725089 Reviewed-on: https://pdfium-review.googlesource.com/9170 Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2017-07-27Define SIZEOF_VOIDP and other cleanup in tiffconfNicolas Pena
This CL uses sizeof to calculate sizes in tiffconf. It adds SIZEOF_VOIDP to allow LibTIFF to take codepaths reducing OOMs. Finally, it gets rid of _FX_WIN32_MOBILE_ since it's never defined. Bug: chromium:718494 Change-Id: I9e6fb2812487ccd7d08e56fd1954c716ddccd07b Reviewed-on: https://pdfium-review.googlesource.com/9410 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
2017-07-27Remove single param Mid() method from string classesRyan Harrison
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>
2017-07-27Simplify CFX_BidiLine code.Lei Zhang
The base level is always 0 in much of the code. Change-Id: I70b8342e0f6cf1dc366ff9f1d5d734d6f55ead0e Reviewed-on: https://pdfium-review.googlesource.com/9254 Reviewed-by: (OOO Jul 28 - Aug 8) dsinclair <dsinclair@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2017-07-27Added CPDF_NameTree::DeleteValueAndName()Jane Liu
1. Added CPDF_NameTree::DeleteValueAndName() for deleting new name and value pairs from a nametree. This function will be used for the API for deleting embedded files. * Added an anonymous helper function for updating the tree nodes and limits upon deletion. * Added a unit test. Bug=pdfium:174 Change-Id: I3ee4c27af637f721ee0ccda26fbae3d3a5e58f5e Reviewed-on: https://pdfium-review.googlesource.com/8931 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-07-27Text Driver: add CLRF characters for new linesrbpotter
CLRF characters seem to still work with label printer drivers, and some users want to preserve these characters when printing. We cannot distinguish new lines due to CLRF characters in the original text from new lines created during layout, so just add the characters to all new lines. Bug: chromium:734850 Change-Id: I4d032a311c33e20a27b2cc1d5d0ba3eb9ef2fd41 Reviewed-on: https://pdfium-review.googlesource.com/9110 Commit-Queue: Rebekah Potter <rbpotter@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2017-07-26Allow CFX_RTemplate to work with CFX_FloatRectDan Sinclair
This CL adds a CFX_RTemplate constuctor which accepts a CFX_FloatRect and converts to the correct type. It also adds a ToFloatRect() method which returns a CFX_FloatRect. The CFX_FloatRect::FromCFXRect is removed. Change-Id: I6827345300c6c4dee02c4e5dfa5590f3c8088748 Reviewed-on: https://pdfium-review.googlesource.com/9114 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-07-26Use std::min/max in fx_coordinates.hDan Sinclair
This CL updates some of the fx_coordinates methods to use std::min/max as appropriate. Change-Id: I12af519bfcbf97969da6fcc9e1bf978beb2d00e8 Reviewed-on: https://pdfium-review.googlesource.com/9113 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-07-26Make comment match codeDan Sinclair
The CFX_FloatRect params are Left,Bottom,Right,Top. Update comment to match. Change-Id: If4d8559e1f2693cfe0f7fcbe649add4c9a5bc303 Reviewed-on: https://pdfium-review.googlesource.com/9112 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: 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>
2017-07-25flush but do not release skia driverCary Clark
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>
2017-07-24Basic APIs and tests for adding attachmentsJane Liu
1. Added APIs for adding attachments, setting attachment files, and modifying attachment dictionary entries. * Added two embedder tests covering all new APIs. Bug=pdfium:174 Change-Id: I65f43cd6ca4887b71f9f7bcee64a87ba6b7e2706 Reviewed-on: https://pdfium-review.googlesource.com/8671 Commit-Queue: Jane Liu <janeliulwq@google.com> Reviewed-by: Lei Zhang <thestig@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-07-24Added CPDF_NameTree::AddValueAndName()Jane Liu
1. Added CPDF_NameTree::AddValueAndName() for inserting new name and values pairs into a nametree while following nametree order rules. This function will be used for the API for adding embedded files. * Added anonymous helper functions. * Added two unit tests. Bug=pdfium:174 Change-Id: Ic3e2f32f7147ef5c164cf5c2a28e0a652ffed74a Reviewed-on: https://pdfium-review.googlesource.com/8271 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Jane Liu <janeliulwq@google.com>
2017-07-24Deprecated FPDF_RENDER_READER in favour of FPDF_RENDER_READYDan Sinclair
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>
2017-07-21Fix nits from commit 67ccef7.chromium/3164Lei Zhang
Change-Id: I24b191ecfe8b65a7d0ddc4958dc117de9ed9ae83 Reviewed-on: https://pdfium-review.googlesource.com/8630 Reviewed-by: Jane Liu <janeliulwq@google.com> Commit-Queue: Lei Zhang <thestig@chromium.org>
2017-07-20Convert CFX_ListItem to use CFX_FloatRectDan Sinclair
The CFX_ListItem never calls the Height() method so doesn't need to use CLST_Rect. This CL removes unused methods from CLST_Rect and CPVT_FloatRect. Change-Id: I82d4f07ec104345e9275ccd838e3c8eed1de7a50 Reviewed-on: https://pdfium-review.googlesource.com/8431 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-07-20Change length calculation in CFX_StringCTemplate constructorRyan Harrison
Originally this would only calculate the length of the passed in string if the passed in length was -1. This causes issues, since other negative values will be passed straight through and break the post-condition on the constructor of the length being non-negative. This leads to undefined and hard to debug behaviour later, in cases where the root cause is a mistake in calculating the proper length. The other related classes, CFX_WideString & CFX_ByteString, test for all negative length values and calculating the length when they occur. This CL changes the FooC versions to use this logic. This implicitly assumes the string is null terminated, so in the incase of an incorrect negative length and a non-null terminated string there will still be a crash, but it will now occur at construction time, instead of at some random later time. BUG=pdfium:827 Change-Id: I4d1fed746ada67c496d8e6ab10861b9332555023 Reviewed-on: https://pdfium-review.googlesource.com/8450 Reviewed-by: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Ryan Harrison <rharrison@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>
2017-07-20Create helper method in CJBig2_HTRDProcNicolas Pena
This CL creates CJBig2_HTRDProc::decode_image to reduce duplicated code in the class. Change-Id: Ie348179c96ff534f95cba401c4b9bd46e1c4e6ac Reviewed-on: https://pdfium-review.googlesource.com/8410 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
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