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2018-04-12Add AsSpan() convenience method to fxcrt strings.Tom Sepez
Make consistent with StringView methods. Change-Id: Idf336895053a327262de924b6a525052e22a25da Reviewed-on: https://pdfium-review.googlesource.com/30491 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-04-12Rename one CPDF_Color::SetValue() variant.Lei Zhang
Rename it to SetValueForPattern() and combine the components parameters into a std::vector. Fix the callers to use std::vector as well. Change-Id: Ib3426e0ffdb164f0fbb10d462ad251bf91165925 Reviewed-on: https://pdfium-review.googlesource.com/30450 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2018-04-12Add index parameter to quadpoints getter and setter.Ralf Sippl
This is needed for working with multiline text markup annotations. Based on https://pdfium-review.googlesource.com/12012. Bug: pdfium:1045 Change-Id: Ifb105996b8b950bb2d5fceaf754b4f571155aef4 Reviewed-on: https://pdfium-review.googlesource.com/29150 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2018-04-12Make some CPDF_StreamContentParser methods const.Lei Zhang
Change-Id: Idd1d865741bb487647fa823846ea5751245ed86a Reviewed-on: https://pdfium-review.googlesource.com/30453 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2018-04-12More CPDF_Color improvements.Lei Zhang
Make Copy() take a const-ref parameter. As is, the parameter is a pointer and it is dereferenced without any checks, and there are no crash reports as a result of that. Also mention GetPattern() should only be called when IsPattern() returns true. Change-Id: Ice3b7c941532d5a312fdd8f0c032e08d1ee1c6b5 Reviewed-on: https://pdfium-review.googlesource.com/30430 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-04-12Slightly simplify CPDF_Color::SetColorSpace().Lei Zhang
All the callers pass in a valid colorspace. SetColorSpace() is the only caller to CPDF_ColorSpace::GetDefaultColor(). Also adjust that method to make it harder to use incorrectly. Change-Id: I5cf7b6d2abef630e1b9443043b13d1c2b5bed18a Reviewed-on: https://pdfium-review.googlesource.com/30351 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Lei Zhang <thestig@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>
2018-04-12Fail decode if continuing to get insufficient size errorRyan Harrison
In the case that the low level LZW decoder has indicated insufficient destination size, if another call to decode returns this status after adjusting the destination size, consider it an error. Subsequent iterations will not return a larger destination size, since the expected row size doesn't change, so the code will just loop infinitely, trying to decode a too large row. BUG=pdfium:1059 Change-Id: I14c8cee721fa77d8aab5e99deff9406490f01468 Reviewed-on: https://pdfium-review.googlesource.com/30452 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2018-04-12Make the input data to CPDF_ColorSpace::GetRGB() const.Lei Zhang
Make a copy of the input data when clamping it in CPDF_Function::Call(). Change-Id: I1d2b3d080977f0f9a4c3ccaf111780867668991a Reviewed-on: https://pdfium-review.googlesource.com/30350 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-04-12Change CPDF{XFA}_Page::PageToDevice() to take a CFX_PointF.Lei Zhang
Instead of taking two doubles. The doubles get casted to floats anyway. Change-Id: Ie16dc60fa5d6412026a5fda08c8c64d4fa2d56c4 Reviewed-on: https://pdfium-review.googlesource.com/30410 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2018-04-12Add return value to FPDF_DeviceToPage().Lei Zhang
Do the same for FPDF_PageToDevice(). Clean up the internal implementation as well. Change-Id: Ia207bfa779d144cb9f0310e768750ab10e603b8f Reviewed-on: https://pdfium-review.googlesource.com/17370 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-04-12Add CPDF_Page::DeviceToPage() / PageToDevice().Lei Zhang
Just like CPDFXFA_Page. Also mark the methods const. Change-Id: I6717b4b61a29663780f45bf872f76fe8e671df75 Reviewed-on: https://pdfium-review.googlesource.com/30132 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-04-12Change GetDisplayMatrix methods to take FX_RECT.Lei Zhang
Change-Id: I079bc3bf1242fd28fdd51930d9deb6efa34d7509 Reviewed-on: https://pdfium-review.googlesource.com/30055 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Lei Zhang <thestig@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>
2018-04-12Clean up some CFX_RenderDevice code.Lei Zhang
- Pass matrices by const-ref instead of by pointers. - Mark one SetClip_Rect() variant as XFA-only. - Pass std::vector into DrawFillArea(). - Simplify the only DrawFillArea() caller. Change-Id: I8f7497e4d46345d50ac4cc8f3e7eef135644e7a7 Reviewed-on: https://pdfium-review.googlesource.com/30131 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-04-12Bounds check in CPDF_CMap::GetNextChar.Tom Sepez
These were kicked loose when we converted to span<>, and there isn't any reason to believe that the remaining string is long enough to complete a multibyte sequence. Bug: 831100 Change-Id: Iae4363f72b4d7ff088a73994d0fe5dab4077ee9e Reviewed-on: https://pdfium-review.googlesource.com/30291 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2018-04-12Fixup CFX_XMLParser::GetStatus returnDan Sinclair
This CL fixes the return type of CFX_XMLParser::GetStatus to correctly return bool instead of int32_t. Change-Id: Ifa0d24b8aad55c4cf63ddf7cfc8eee48bf8431bf Reviewed-on: https://pdfium-review.googlesource.com/30290 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2018-04-12Remove CFX_XMLDoc and call the parser directlyDan Sinclair
This CL removes the CFX_XMLDoc and calls the CFX_XMLParser directly from CXFA_DocumentParser. Change-Id: I4d715cca90cd15b5e1d79827e0bb2781e873e371 Reviewed-on: https://pdfium-review.googlesource.com/30251 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2018-04-12Allow retrieving the XML tree from the CFX_XMLDocDan Sinclair
This CL allows the CXFA_SimpleParser to retrieve the XML tree from the CFX_XMLDoc. This way, we don't have to keep the doc around and can store the pointer to the tree in the CXFA_SimpleParser. Change-Id: I5b478acbe61e6f1ca5fa04d03133a2b327a0cb1c Reviewed-on: https://pdfium-review.googlesource.com/30210 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2018-04-12Merge CFX_XMLParser and CFX_XMLSyntaxParserDan Sinclair
The CFX_XMLParser was a wrapper around the CFX_XMLSyntaxParser. This CL merges the SyntaxParser into protected/private methods if the XMLParser. Change-Id: If1519b5de55866ed14359dffd64dc12c36ee0244 Reviewed-on: https://pdfium-review.googlesource.com/30171 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2018-04-12Cleanup some CFX_XMLParser codeDan Sinclair
This CL cleans up minor nits in the CFX_XMLParser code. Change-Id: Ie19d12d3dcce16c9ce6088160ecdec3d9855c11f Reviewed-on: https://pdfium-review.googlesource.com/30170 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2018-04-12[xfa] Remove form checksum abilitiesDan Sinclair
This CL removes the code for verifying and creating checksums associated with form elements in XFA documents. This was the only code requiring the SAXReader which has also been removed. According to the XFA spec and application can decide which parts of the signatures are supported. This feature is being removed until we determine if/when it is needed. Bug: pdfium:1063 Change-Id: Iec2261282340f8fc72a1225d2e0d3e6ddf05edcb Reviewed-on: https://pdfium-review.googlesource.com/30150 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2018-04-11Remove CFX_DIBAttribute::m_strAuthorTom Sepez
It is set in a couple of places, but the value is never used for any purpose. Change-Id: I6fc0839bc14b21ee8217fcb3eadf6c252ad67aa7 Reviewed-on: https://pdfium-review.googlesource.com/30330 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-04-11Fix crash when ColorSpace references itself directly.Henrique Nakashima
Also fixes any problems with cycles between colorspaces. Past fixes have solved problems with CPDF_DocPageData::GetColorSpace() calling itself and CPDF_DocPageData::GetColorSpace() calling CPDF_ColorSpace::Load() and vice versa. They have not solved CPDF_ColorSpace::Load() calling itself. This CL repurposes the |pVisited| set to ensure CPDF_ColorSpace::Load() does not try to load a colorspace as a dependency of itself and creates |pVisitedLocal| to ensure CPDF_DocPageData::GetColorSpace() does not create a similar circular dependency not involving CPDF_ColorSpace::Load(). Bug: chromium:828206 Change-Id: Ib2d0ec494be169135607f3651e0f70627b26ebd7 Reviewed-on: https://pdfium-review.googlesource.com/29810 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
2018-04-11Fix issues with PDFium third_party/base/span.hTom Sepez
Remove stray const in operator[] that was introduced when downgrading from C++14 to C++11 syntax. Add missing Get() in first() that was introduced when converting to UnownedPtr. Prevent ASAN from flagging spans where the UnownedPtr points to byte N+1 of a N byte object, and the span is empty. This is legal in C for ordinary pointers so long as the pointer isn't de-referenced, but is not allowed per the rules for UnownedPtr. Change-Id: Ic143c5ef4e37c1cf86f0a3e5408be6e2076a85e2 Reviewed-on: https://pdfium-review.googlesource.com/30212 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-04-11Fix trailing whitespace handling in CPDF_StreamParser::ReadInlineStream()Tom Sepez
After advancing past whitespace, the buffer may become empty. We were checking too early. Bug: 831498 Test: covered by fuzzers Change-Id: I6796b4723a05c2bcafe495dc7bc648213aa9cc22 Reviewed-on: https://pdfium-review.googlesource.com/30191 Commit-Queue: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-04-11Avoid stack overflow when loading CPDF_Function.chromium/3395Henrique Nakashima
CPDF_StitchFuncs that reference each other create a Load() loop. Maintaining a set of the visited CPDF_Objects during a Load() call tree prevents that. Bug: chromium:830221 Change-Id: I6f494da16c6d79f05870ff85cff38ff8fe69ecfe Reviewed-on: https://pdfium-review.googlesource.com/30050 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-04-10Add static_asserts for FX_RECT and FX_COLORREF.Lei Zhang
Make sure they match their win32 equivalent data types. Change-Id: I395054ce5c5ae110c78dbae30dd985fc498045fb Reviewed-on: https://pdfium-review.googlesource.com/30070 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-04-10Load CIDToGIDMap stream for CID fonts if it exists.Lei Zhang
BUG=chromium:813705 Change-Id: I57265aad11d8f717f6ce33cc09241f4bef6381db Reviewed-on: https://pdfium-review.googlesource.com/29710 Reviewed-by: Nicolás Peña Moreno <npm@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-04-10Remove CFX_Rect.Lei Zhang
It is rarely used and FX_RECT is the more common integer rect type. Change-Id: I7c5b875321c2d587becedcd058bb3a57fd1f0b61 Reviewed-on: https://pdfium-review.googlesource.com/30053 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-04-10Change CFX_RenderDevice::FillRect() to take FX_RECT by const-ref.Lei Zhang
It currently takes const FX_RECT*, but the pointer is never nullptr. Change-Id: I571e9e8dd04756bc4daa25a61a5af8d1f902914b Reviewed-on: https://pdfium-review.googlesource.com/30052 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-04-10Change FillRectWithBlend methods to take FX_RECT by const-ref.Lei Zhang
They currently take const FX_RECT*, but the pointer is never nullptr. Also add a comment to explain why FX_RECT is the way it is. It has the same layout as a win32 RECT. Change-Id: Icf0e4c3eb25fe03317590a736578e053b9dccf7a Reviewed-on: https://pdfium-review.googlesource.com/30051 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-04-09Use ByteStringView / pdfium::span in CPDF font as appropriate.chromium/3393Tom Sepez
Change-Id: I92c7ba605bf95a9023ad046b8dddebe0a0592802 Reviewed-on: https://pdfium-review.googlesource.com/29992 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-04-09Pass FX_RECT by const-ref in rendering code.Lei Zhang
Change-Id: I1232e6c61cbe696d90d87f461ebed0a7aea40893 Reviewed-on: https://pdfium-review.googlesource.com/29973 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-04-09Remove RenderDeviceDriverIface::GetCTM().Lei Zhang
It has no overrides and always returns the identity matrix. Many callers that use the returned value can be simplified, because they are scaling by 1 or concatenating an identity matrix. Change-Id: I7afb7214be210d02638644dfb9b58404420c2ef2 Reviewed-on: https://pdfium-review.googlesource.com/29972 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-04-09Cleanup CPDF_RenderStatus::GetObjectClippedRect().Lei Zhang
- Just return the rect directly and let the caller check for emptiness. - Get rid of a boolean parameter with always false argument. Change-Id: Ia33587db34c0a628047e59b7faa390c3ac57ec8a Reviewed-on: https://pdfium-review.googlesource.com/29971 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Ryan Harrison <rharrison@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>
2018-04-09Make StringViewTemplate be based on pdfium::span<>.Tom Sepez
Change-Id: I13d3e462c86d035bbb992696aab523df5642533b Reviewed-on: https://pdfium-review.googlesource.com/29811 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-04-09Make pdfium::span<> be based off of UnownedPtr<>.Tom Sepez
Because we can get the lifetime check for free if we do this. This requires adding some "constexpr/noexcept" to UnownedPtr to make the types line up with what span.h requires. Change-Id: I45918f8723122082036eed959f769644ab4c509f Reviewed-on: https://pdfium-review.googlesource.com/29672 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-04-09Move the CFX_XMLParser out of CXFA_SimpleParserDan Sinclair
This CL removes the CFX_XMLParser from CXFA_SimpleParser and constructs it in the CFX_XMLDoc. Change-Id: Id69b396f091892170a4c4654ac1d0fd65d1efbb6 Reviewed-on: https://pdfium-review.googlesource.com/29970 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2018-04-06Add span.h from chromium base.chromium/3392Tom Sepez
Allows indexing with better bounds-checking to occur. Some small modifications are required to deal with PDFium being intentionally held at C++11 compliance, not C++14. Use in one place as check on correctness. Change-Id: Id2875cf0a93980112bc536a93c4f9ec5306c0dac Reviewed-on: https://pdfium-review.googlesource.com/29671 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Chris Palmer <palmer@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-04-05Combine if/else blocks in CPDF_DIBSource::TranslateScanline24bpp().Lei Zhang
The two branches are very similar. Change-Id: I2a9502858e9ce997f28b17bc1051b71fa058c2c4 Reviewed-on: https://pdfium-review.googlesource.com/24350 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2018-04-05Split CPDF_DIBSource::TranslateScanline24bpp().Lei Zhang
Move some code into TranslateScanline24bppDefaultDecode(). Change-Id: I7e985c2abb9b2f9e41214531321f8f3846dd3a94 Reviewed-on: https://pdfium-review.googlesource.com/29857 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-04-05Fix const casts in CPDF_Encryptor.Lei Zhang
Change-Id: I4d7661716116969ae80fdac52f6b400a5ff68e50 Reviewed-on: https://pdfium-review.googlesource.com/29855 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-04-05Get rid of a const_cast in CPDF_FlateEncoder.Lei Zhang
Change-Id: I3ee8f8e9eb33d251dc00336bcd31e578e7ce5143 Reviewed-on: https://pdfium-review.googlesource.com/29854 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-04-05Remove some const_casts in CPDF_Creator.Lei Zhang
Change-Id: I7c639655c003527417255c134a4393d68cda3ef1 Reviewed-on: https://pdfium-review.googlesource.com/29852 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Ryan Harrison <rharrison@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>
2018-04-04Decrease XML parser buffer sizeDan Sinclair
This CL decreases the m_iXMLPlaneSize in the CFX_XMLSyntaxParser from 32*1024 to 1024 bytes. This plane size is the size of the chunks we read the XML file in. The issue with having a large plane size is inside the CFX_SeekableStreamProxy::ReadString we allocate a vector of the min(planeSize, remaining_bytes). This means, we could potentially be allocating 32*1024 bytes to read in a single character. For the test in the attached bug the runtime went from 12s to 25ms. Bug: chromium:813195 Change-Id: Id57e619b7a118d45e3fed491ad81e86a4b1cacb8 Reviewed-on: https://pdfium-review.googlesource.com/29750 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2018-04-03Remove DefaultAppearance HasColor and return an optional insteadDan Sinclair
This CL converts CPDF_DefaultAppearance to return Optional<CFX_Color:Type> items instead of having a HasColor. This saves the double parse of the appearance stream. Change-Id: Ib3c136da6e2adfb559e495de1d299cce0b4ad25f Reviewed-on: https://pdfium-review.googlesource.com/29630 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
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