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2017-08-30Split CFX_FixedBufGrow out of fx_basicchromium/3201Dan Sinclair
This CL moves CFX_FixedBufGrow to its own files and updates includes as needed. Change-Id: Ia0cb70569b30acdb3ba9f23d8937ab8f9c17d6e6 Reviewed-on: https://pdfium-review.googlesource.com/12490 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-08-30Move CFX_WideTextBuf out of fx_basicDan Sinclair
This CL moves CFX_WideTextBuf to its own files and updates includes as needed. Change-Id: Ibe66ecf3e66f8f01dd8e9eaf6b467588be86ad4f Reviewed-on: https://pdfium-review.googlesource.com/12413 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-08-30Move CFX_BinaryBuf out of fx_basicDan Sinclair
This CL splits the CFX_BinaryBuf out of fx_basic into its own files. The various includes have been updated. Change-Id: I0fa616eeb4df6dd229c02dc3a0597b3dced59425 Reviewed-on: https://pdfium-review.googlesource.com/12412 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-08-30Move CFX_UTF8Decoder out of fx_basicDan Sinclair
This CL moves CFX_UTF8Decoder out of fx_basic and includes where needed. Change-Id: I1a093a8a77bbefcc90fbb2f81b1da65bfc0512bf Reviewed-on: https://pdfium-review.googlesource.com/12411 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-08-30Move CFX_UTF8Encoder out of fx_basicDan Sinclair
The CFX_UTF8Encoder is only used in FX_UTF8Encode(). This CL moves the class to the anonymous namespace with that method. The unused AppendStr method has been removed. Change-Id: Ie514686c4b4489bb0b0df83b7eeec14bb1876fcd Reviewed-on: https://pdfium-review.googlesource.com/12410 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-08-30Split auto restorer from fx_basicDan Sinclair
This CL moves CFX_AutoRestorer into its own file, separate from fx_basic.h. Change-Id: I415cb9207416bd4744b8ac8e2d7466852db53f0a Reviewed-on: https://pdfium-review.googlesource.com/12390 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-08-30Move CFX_BitStream to its own fileDan Sinclair
This CL moves the CFX_BitStream code out of fx_basic and into cfx_bitstream. Bug: pdfium:867 Change-Id: I5b7e6190a7db1fe1d24feb6bd676035a5c73ee92 Reviewed-on: https://pdfium-review.googlesource.com/12350 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-08-30Convert int* references to FX_STRSIZERyan Harrison
Through out the code base there are numerous places where variables are declared using a signed integer type when interacting with the string classes, since they assume that FX_STRSIZE is 'int'. As part of changing the underling type of FX_STRSIZE to be unsigned, these locations are being changed to use FX_STRSIZE. This is necessary as part of converting the type, but has been broken off into a separate CL, since it should be low risk. Some related cleanups that are low risk are included as part of this CL. BUG=pdfium:828 Change-Id: Ifaae54ad195ccde0fe8672f71271d29a6ebd65fd Reviewed-on: https://pdfium-review.googlesource.com/12210 Reviewed-by: Tom Sepez <tsepez@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-08-30Cleanup CFX_SeekableStreamProxyRyan Harrison
Clean up being done in preperation for removal of negative length strings. This means that FX_STRSIZE will become unsigned so the return methods cannot return -1. Other cleanup suggested by reviewers is included. BUG=pdfium:828 Change-Id: I2cfb78c8ab7738516e0c9f8a99caec6f6cb12cde Reviewed-on: https://pdfium-review.googlesource.com/12170 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-08-28Remove unused / rarely used CFX_PTemplate methods.Lei Zhang
CFX_Point and CFX_PointF are derived from CFX_PTemplate. Add a helper function to replace the rarely used method where its used. Change-Id: I28448d44bbae9aa6773d1ad5fd7daf342b67c84c Reviewed-on: https://pdfium-review.googlesource.com/12071 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2017-08-25Add help IsValid* methods to string classeschromium/3198chromium/3197Ryan Harrison
The various string classes, CFX_ByteString, CFX_ByteStringC, CFX_WideString, and CFX_WideStringC, have many conditionals that are effectively determining if a value is a valid index or length. This CL refactors the logic into one place per class, so it only needs to be changed once if its behaviour needs to change. It also make the some of the methods stricter on the inputs they will accept. BUG=pdfium:828 Change-Id: Iadcdaa34a6d862a2804485770027179c89dc6956 Reviewed-on: https://pdfium-review.googlesource.com/12030 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
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>
2017-08-22Bypass asserts in string [] operator for empty stringschromium/3194Ryan Harrison
The previous behaviour of [] on an empty string was to return 0 regardless of the index. We wanted to make this more strict, hence the current behaviour. This has led to a number of crashes due to code depending on the old behaviour. Reverting to the old behaviour until we have time to correct the call sites using empty strings. Bug=chromium:752480, pdfium:828 Change-Id: I511eea4148de85bf7f4694351e7a030b1a37f0de Reviewed-on: https://pdfium-review.googlesource.com/11630 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-08-22Converted CFX_Matrix::TransformRect() to take in constsJane Liu
Currently, all three of CFX_Matrix::TransformRect() take in rect values and modify them in place. This CL converts them to take in constant values and return the transformed values instead, and fixes all the call sites. Bug=pdfium:874 Change-Id: I9c274df3b14e9d88c100ba0530068e06e8fec32b Reviewed-on: https://pdfium-review.googlesource.com/11550 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Jane Liu <janeliulwq@google.com>
2017-08-22Avoid an ASSERT failure in CFX_SeekableStreamProxy.Lei Zhang
BUG=chromium:718503 Change-Id: I6ff332c2ab5320d1b5f39a9aa1564e7e3e243cbe Reviewed-on: https://pdfium-review.googlesource.com/11570 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-08-21Converted CFX_FloatRect::{Init|Update}Rect() to take point objectsJane Liu
Converted CFX_FloatRect::Init() and CFX_FloatRect::UpdateRect() to take in a CFX_PointF object instead of two coordinates. Bug=pdfium:770 Change-Id: Ibcb620f192d6c086158c39f23c411777286005d0 Reviewed-on: https://pdfium-review.googlesource.com/11450 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-08-15Remove CFX_ByteTextBuf.Henrique Nakashima
Bug: pdfium:731 Change-Id: I00d2097bca369aa4d1743716c4b2615e37a8444d Reviewed-on: https://pdfium-review.googlesource.com/10910 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
2017-08-15Make GetChar & Clone const for IFX_CharIterRyan Harrison
BUG=pdfium:864 Change-Id: Iab03e1977c859f150452825650afed3520024cca Reviewed-on: https://pdfium-review.googlesource.com/11030 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-08-15Remove GetAt from string classesRyan Harrison
This method duplicates the behaviour of the const [] operator and doesn't offer any additional safety. Folding them into one implementation. SetAt is retained, since implementing the non-const [] operator to replace SetAt has potential performance concerns. Specifically many non-obvious cases of reading an element using [] will cause a realloc & copy. BUG=pdfium:860 Change-Id: I3ef5e5e5a15376f040256b646eb0d90636e24b67 Reviewed-on: https://pdfium-review.googlesource.com/10870 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-08-11Add checks of index operations on string classesRyan Harrison
Specifically the index parameter passed in to GetAt(), SetAt() and operator[] are now being tested to be in bounds. BUG=chromium:752480, pdfium:828 Change-Id: I9e94d58c98a8eaaaae53cd0e3ffe2123ea17d8c4 Reviewed-on: https://pdfium-review.googlesource.com/10651 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-08-10Rename CFX_UTF8Decoder::AppendChar to AppendCodePoint.Henrique Nakashima
Change-Id: Iec5523492eac3910f5ed105370e9092fd992b1b9 Reviewed-on: https://pdfium-review.googlesource.com/10471 Commit-Queue: Henrique Nakashima <hnakashima@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-08-10Make CFX_ByteString(ostringstream) const.Henrique Nakashima
Change-Id: I782379cc7f93b93ed34a5d0a39ee2f198c650465 Reviewed-on: https://pdfium-review.googlesource.com/10430 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
2017-08-09Remove CFX_ByteTextBuf from CFX_UTF8EncoderHenrique Nakashima
Also making CFX_ByteString(ostringstream) const. Bug: pdfium:731 Change-Id: Iaee610248a5634e8731eaf05944c32d52c4e8015 Reviewed-on: https://pdfium-review.googlesource.com/10151 Commit-Queue: Henrique Nakashima <hnakashima@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-08-09Move CSS data tables only used in one fileDan Sinclair
This CL moves the cfx_cssdatatable tables and methods which are only used in cfx_cssdeclaration to an anonymous namespace. Change-Id: Ib5dc71cc85c348e2ae7feaab8d6495fc2aa88642 Reviewed-on: https://pdfium-review.googlesource.com/9253 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-08-09Fold CFX_IsOnlyValue define into only usageDan Sinclair
Change-Id: I2cb20fd00436858f035f984fc104bae2c2d01057 Reviewed-on: https://pdfium-review.googlesource.com/9252 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-08-08Move CSS code to coreDan Sinclair
The xfa/fde/css code has no other links into xfa/. This CL moves the css code to core/fxcrt/css and sets to only build when pdf_enable_xfa is enabled. Change-Id: Iefd208e1f83a28b80b567c574e841e87bce310be Reviewed-on: https://pdfium-review.googlesource.com/9251 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-08-04Enforce recent VC++ version (2015 or later).Tom Sepez
Remove ifdef'd code for versions we know will no longer work. Change-Id: I036c80168f846df1b98e9df4972f84655e8418fb Reviewed-on: https://pdfium-review.googlesource.com/10051 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
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>
2017-08-02Remove 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>
2017-08-02Remove 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>
2017-08-01Encapsulate 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>
2017-07-28Use 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>
2017-07-28Convert 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>
2017-07-27Simplify 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>
2017-07-26Allow 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>
2017-07-24Basic 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>
2017-07-20Change 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>
2017-07-19Rename 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>
2017-07-19Converting CFX_ByteTextBuf to ostringstream in SAX.Henrique Nakashima
Respin of https://pdfium-review.googlesource.com/c/6592 with fixes that avoid invalid reads. Bug: pdfium:731 Change-Id: I9395063505ba1a5c610e21b089ab8aa1a0a5b86f Reviewed-on: https://pdfium-review.googlesource.com/8290 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
2017-07-19Revert "Converting CFX_ByteTextBuf to ostringstream in SAX."Henrique Nakashima
This reverts commit 7ca47d55c9cbbec7e0a0b0beffffe348ae655086. Reason for revert: Caused pdfium:821 Original change's description: > Converting CFX_ByteTextBuf to ostringstream in SAX. > > Bug: pdfium:731 > Change-Id: Ic492e8900c4a69082ff9c2384006a4e6bfa3313e > Reviewed-on: https://pdfium-review.googlesource.com/6592 > Reviewed-by: Lei Zhang <thestig@chromium.org> > Reviewed-by: dsinclair <dsinclair@chromium.org> > Commit-Queue: Henrique Nakashima <hnakashima@chromium.org> TBR=thestig@chromium.org,dsinclair@chromium.org,hnakashima@chromium.org Bug: pdfium:731 Change-Id: Ic7390c3f53d67d6eecf7f669e329702daa16f339 Reviewed-on: https://pdfium-review.googlesource.com/8230 Commit-Queue: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-07-19Avoid unterminated string segment in cfx_saxreaderhandler.cppTom Sepez
Use the overloaded << operator, which takes length into account for StringC types, rather than a raw ptr (which gets promoted into a std::string resulting in a length call that overflows since StringCs aren't necessarily nul-terminated). Bug: 746073 Change-Id: Iffbbff53e12da8741acc7ce54000232cc66d83bc Reviewed-on: https://pdfium-review.googlesource.com/8150 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 03:29:20 +0000