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2015-01-05Get rid of g_timeMap global object.Bruce Dawson
g_timeMap is a global variable with a constructor and destructor so it must be removed. BUG=441899 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/832703003
2015-01-05Remove run-time calculation of hash constants in pdfium.Bruce Dawson
PDFium static initializers must go. Static initializers are prohibited by the style guide. They have negative consequences including increased startup time (from pulling in additional code pages) and reduced sharing of data pages (since the variables can't go in the read-only data segment). This change uses a template struct and typed enums to reproduce JS_CalcHash at run-time. An unsigned long long constant and masking with 0xFFFFFFFF are used to avoid compile errors due to integer overflow of compile-time constants. The HashVerify class is used to check the results, necessary since none of the functions in global.cpp are called when pdfium_test.exe runs. const_expr would be a much cleaner way to implement this change but it is not yet widely supported. On the Windows release build this reduces the code size (.text virtual size) by 0x240 (576) bytes, the .data section by 0x20 bytes (for eight unsigned globals), and the .rdata section by 0x20 bytes (the unneeded string savings, minus the eight unsigned globals now being there). BUG=441899 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/792043005
2015-01-05Get rid of fifteen copies of m_sTimeMap and their initializers.Bruce Dawson
m_sTimeMap is a global variable with a constructor and destructor, which is not allowed. This change moves it to a function with a static pointer so that it is constructed on demand and then leaked, thus avoiding having startup and shutdown code. This also fixes a worrisome bug caused by having m_sTimeMap defined in a header file. Because m_sTimeMap was defined (and marked as static) in a header file there were fifteen separate copies of it, one for each source file which included the header file. This could easily lead to bugs because a timer that was added from one source file would be invisible to other source files. Each instance of m_sTimeMap added four entries to the dump-static-initializers.py report, for a total of sixty, so this fix significantly cleans up that report. BUG=441899 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/831903002
2015-01-05Clean up bookmark related codes.Bo Xu
Remove CPDF_Dictionary*() operator in CPDF_Bookmark class. Unify naming conventions and coding styles. Change some functions to const. Change the name of function argument to |pDict| for FPDF_xxx type variable. This makes the code more clear and gives better variable naming R=tsepez@chromium.org Review URL: https://codereview.chromium.org/828203002
2015-01-05In windows printing, convert src bitmap to dest bitmap using CompositeBitmap.Bo Xu
When dealing with transparency, the printing procedure will generate a bitmap first, then draw this bitmap in windows DC. The format of source bitmap is argb, but the destination bitmap is rgb. Simply doing memcpy will lose the alpha channel information, so CompositeBitmap function is needed. BUG=412908 R=vitalybuka@chromium.org Review URL: https://codereview.chromium.org/826633002
2015-01-02Remove g_NaN global variable and its constructor.Bruce Dawson
Doing the type conversion on demand is just as efficient as doing it at startup time, and makes for more efficient startup. Also mark g_nan as const, to reduce .data section size and enforce desired semantics. BUG=441899 R=bo_xu@foxitsoftware.com Review URL: https://codereview.chromium.org/788143009
2014-12-30Get rid of FX_LPCSTR cast.Bo Xu
Follow up on https://codereview.chromium.org/733693003 R=brucedawson@chromium.org, tsepez@chromium.org Review URL: https://codereview.chromium.org/809993004
2014-12-12Avoid duplicate definitions of JSCONST_n*Hash and QeTable variables.Bruce Dawson
QeTable is a 752 byte array that was defined in a header file. This caused it to be instantiated by the VC++ compiler 12 times, wasting 8,272 bytes of space in the data segment. Because 'const' implies 'static' this did not cause any duplicate symbol errors. JSCONST_n*HASH are a set of eight variables that are defined in a header file. This causes them to be replicated 15 times. The variables themselves are tiny but they are dynamically initialized and this dynamic initialization code is replicated 15 times. When tested on pdfium_test.exe the effect of this change is to: Reduce the .text (code) segment by 3,616 bytes. Reduce the .rdata section by 8,656 bytes. Reduce the total binary file size by 13312 bytes. These are the worst offenders for pdf.dll as shown in: https://drive.google.com/open?id=1BvubxoA2SU_2e4T5cq7jHTjc1TlT0qOndpIfX3DMeA8&authuser=0 This will also drastically simplify the list of work to be done for bug 441899 (getting rid of initializers). BUG=441988 R=bo_xu@foxitsoftware.com Review URL: https://codereview.chromium.org/802013002
2014-12-12Simplify PDFium by removing code that's not used in the open source repo.John Abd-El-Malek
-remove parameter from FPDF_InitLibrary -remove a bunch of ifdefs that are unused R=tsepez@chromium.org Review URL: https://codereview.chromium.org/801913002
2014-12-08Replace manual/error-prone/hard-to-verify arraysize calculations with safe ↵Bruce Dawson
FX_ArraySize macro. pdfium has numerous places where the number of elements in an array is calculated with expressions like: sizeof(cFormats)/sizeof(FX_LPCWSTR) This is suboptimal because it is verbose, it is easy to get wrong, and it cannot be determined through casual inspection whether the code is correct. It will give incorrect results if cFormats is a pointer instead of an array and it will give incorrect results if FX_LPCWSTR is not the type of the array elements. The FX_WSTRC macro in fx_string.h which I fixed was particularly scary because it would silently misbehave if passed a pointer. The FX_ArraySize macro which I have added and started using (taken from arraysize in v8's macros.h) is easier to use and will always give correct results. If passed a pointer it will fail to compile. For this change I only fixed instances of sizeof(FX_LPCWSTR). There appear to be about 150 other places in the pdfium code that could benefit from using FX_ArraySize. R=bo_xu@foxitsoftware.com, tsepez@chromium.org Review URL: https://codereview.chromium.org/729293003
2014-12-08Getting rid of more (FX_LPCWSTR) casts and fixing two bugs revealed by this.Bruce Dawson
Since casts to FX_LPCWSTR have been shown to hide bugs I tried removing more of them, targeting those places where a cast was used to force a conversion from CFX_WideString to FX_LPCWSTR, replacing these casts with calls to the newly added .c_str() function. This revealed two places where the cast was hiding a bug -- where ->c_str() was required instead! This removes ~33 FX_LPCWSTR casts and there are ~31 left, many of which will go away in some future change. Also includes this change: Removing unnecessary casts from wchar_t* to wchar_t*, by various names. Original patch from Bruce Dawson(brucedawson@chromium.org) R=bo_xu@foxitsoftware.com, tsepez@chromium.org Review URL: https://codereview.chromium.org/733693003
2014-11-17Removing unnecessary casts from wchar_t* to wchar_t*, by various names.Bruce Dawson
Remove casts that merely cast from wchar_t* to wchar_t*. Sometimes the types or casts are FX_LPCWSTR but the idea is the same. Excess casts can (and have) hidden bugs so removing these may prevent future problems. Original patch from Bruce Dawson(brucedawson@chromium.org) R=bo_xu@foxitsoftware.com, tsepez@chromium.org Review URL: https://codereview.chromium.org/730993002
2014-11-14Correct typo in form fill environment functionsBo Xu
Complementary patch in chromium is in https://codereview.chromium.org/711553003 R=thestig@chromium.org Review URL: https://codereview.chromium.org/700373006
2014-11-14Remove FX_LPCWSTR cast to wchar_t* literalsBo Xu
BUG=https://code.google.com/p/pdfium/issues/detail?id=78 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/726143002
2014-11-14Change from 'this' to L'this' and remove the cast that was hiding this mismatch.Bo Xu
Found by VC++'s /analyze. Warning was: fpdfsdk\src\javascript\js_runtime.cpp(352) : warning C6276: Cast between semantically different string types: char * to wchar_t *. Use of invalid string can lead to undefined behavior. This mismatch has been there as far back as the history goes (to May of this year). It looks like a real bug to me. However I don't know the implications of this bug and why it would not have been noticed at run-time. The code has been this way as far back as the git history goes, but that is only to May 2014. Original patch from Bruce Dawson(brucedawson@chromium.org) BUG=427616 R=bo_xu@foxitsoftware.com Review URL: https://codereview.chromium.org/705503004
2014-11-06Adding constructor to _FX_SYSTEMTIME to resolve uninitialized read bugs ↵Tom Sepez
found by /analyze on some error paths Warning from /analyze was: src\third_party\pdfium\fpdfsdk\include\fsdk_mgr.h(96) : warning C6001: Using uninitialized memory 'fxtime'. Other error paths can also lead to reading from an uninitialized _FX_SYSTEMTIME object. Code-gen for the constructor is small enough (four writes of zeroed EAX with VC++, less with gcc) to make putting the constructor in a .cc file unnecessary. Approval of in-class member initialization would make this fix simpler but that has not quite been approved yet. BUG=https://code.google.com/p/pdfium/issues/detail?id=70 BUG=427616 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/692533005
2014-10-30For v8 Global Object, do not copy in CJS_Value constructor.Tom Sepez
BUG=425129 R=bo_xu@foxitsoftware.com Review URL: https://codereview.chromium.org/688303003
2014-10-03Enable C linkage in fpdfppo.hBo Xu
BUG=pdfium-52 R=jun_fang@foxitsoftware.com Review URL: https://codereview.chromium.org/623893003
2014-09-24Lock page in LoadFXAnnot to prevent unintended page closingBo Xu
BUG=410326 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/594403003
2014-09-22Invoke V8::Initialize() explicitly during V8 setupchromium/2168chromium/2167Jochen Eisinger
BUG=none R=jam@chromium.org Review URL: https://codereview.chromium.org/581413002
2014-09-19Add FPDF_GetSecurityHandlerRevisionBo Xu
Security handler revision number is needed to interpret file permission. BUG=None R=thestig@chromium.org Review URL: https://codereview.chromium.org/589813002
2014-09-08The cause of this issue is that there is an indirect object like '112 0 R' ↵Jun Fang
but no its direct object '112 0 object' in the test pdf file. Without checking the validity, it causes a null pointer when trying to get the direct object by an indirect object. BUG=390781 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/553613003
2014-08-22Fix confusion between length in bytes and length in characters in ↵Tom Sepez
app::response(). I also clean up the code while we are here, rewriting a strange switch statement and tidying whitespace. BUG=406142 R=jun_fang@foxitsoftware.com Review URL: https://codereview.chromium.org/498773004
2014-08-18Fix a double-free issue in CFX_PathData::~CFX_PathDataJun Fang
In CPDFSDK_InterForm::SubmitFields, the buffer pointed by m_pBuffer is returned and released by the caller. However, it will be released again in the destructor. BUG=401580 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/481733002
2014-08-18Check path point count overflow in DrawThisAppearanceBo Xu
BUG=387969 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/461343003
2014-08-18Fix tzHour usage on systems where char is unsigned.chromium/2137chromium/2136chromium/2135chromium/2133chromium/2132chromium/2131chromium/2130chromium/2129chromium/2128Nico Weber
BUG=chromium:395832 R=bo_xu@foxitsoftware.com Review URL: https://codereview.chromium.org/478353002
2014-08-13Add FX_OVERRIDE and use it for virtual functions of FX_FINAL classes.Tom Sepez
Should there be cases where this fails to compile, it indicates a mistake, either an incorrectly declared overrriden virtual method, or a method that should be declared non-virtual. The only issues were with CPDF_CustomAccess::GetBlock(), CPDF_CustomAccess::GetByte(), and CPDF_CustomAccess::GetFullPath(). These don't appear to be used anywhere, and are removed. Two members are removed that are no longer needed once those methods are removed. R=jam@chromium.org, jun_fang@foxitsoftware.com Review URL: https://codereview.chromium.org/454983003
2014-08-13Remove try/catch blockBo Xu
BUG=pdfium:28 R=thakis@chromium.org Review URL: https://codereview.chromium.org/472563002
2014-08-12Treat null Parent as no Parent for dictionary objectsBo Xu
To be complient with PDF reference chapter 7.3.7 BUG=402437 R=vitalybuka@chromium.org Review URL: https://codereview.chromium.org/469573002
2014-08-12Fix missing or broken include guard macros in pdfium headers.Tom Sepez
This has no ill-effect at present, but may be distracting when viewing the file since it just looks wrong. R=jun_fang@foxitsoftware.com Review URL: https://codereview.chromium.org/461933003
2014-08-07Change '>=' back to '>' in extension.h due to bad fixchromium/2122chromium/2121chromium/2120chromium/2119chromium/2118Jun Fang
BUG=400662 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/445303002
2014-08-06Clean up meaningless branch on commented-out code.Chris Palmer
BUG=https://code.google.com/p/pdfium/issues/detail?id=35 R=bo_xu@foxitsoftware.com Review URL: https://codereview.chromium.org/451483003
2014-08-04Remove unused |m_pEvi| field.Chris Palmer
Edge closer to the goal of building PDFium with the chromium_code configuration. BUG=https://code.google.com/p/pdfium/issues/detail?id=29 R=bo_xu@foxitsoftware.com, thakis@chromium.org Review URL: https://codereview.chromium.org/441763002
2014-08-02Fix buffer size boundary check offset by 1chromium/2117chromium/2116chromium/2115chromium/2114chromium/2113Bo Xu
When newPos == file size, the current block will not be read or Get. If this block is a crucial part of the document (like m_pTrailer), the program will exit with parse error and the document will not be rendered. BUG=None R=jun_fang@foxitsoftware.com Review URL: https://codereview.chromium.org/440563003
2014-07-31Fix a few more -Wreorder warnings.Nico Weber
No intended behavior change. BUG=pdfium:29 R=bo_xu@foxitsoftware.com Review URL: https://codereview.chromium.org/436483002
2014-07-31Remove CPDFSDK_Annot::ResetAppearance().Nico Weber
It's unused, and it caused a warning about CPDFSDK_Widget::ResetAppearance() failing to override it (since these two unrelated methods had the same name). No intended behavior change. BUG=pdfium:29 R=bo_xu@foxitsoftware.com Review URL: https://codereview.chromium.org/429483004
2014-07-30Remove a few unused variables, functions, and member variables.Nico Weber
No intended behavior change. BUG=pdfium:29 R=bo_xu@foxitsoftware.com Review URL: https://codereview.chromium.org/426763003
2014-07-30Fix a few -Wreorder warnings.Nico Weber
BUG=pdfium:29 R=bo_xu@foxitsoftware.com Review URL: https://codereview.chromium.org/427353003
2014-07-30Add missing braces for aggregate initializers.Nico Weber
No intended behavior change. BUG=pdfium:29 R=bo_xu@foxitsoftware.com Review URL: https://codereview.chromium.org/426763004
2014-07-30Attempt to fix some -Woverloaded-virtual warnings.Nico Weber
There are many warnings that look like: error: 'CPWL_RadioButton::OnChar' hides overloaded virtual function [-Werror,-Woverloaded-virtual] virtual FX_BOOL OnChar(FX_WORD nChar); ^ note: hidden overloaded virtual function 'CPWL_Wnd::OnChar' declared here: different number of parameters (2 vs 1) virtual FX_BOOL OnChar(FX_WORD nChar, FX_DWORD nFlag); ^ It looks like someone added the nFlag parameter to the methods in CPWL_Wnd at some point and missed to update all overloads This patch attempts to fix this: It adds the parameter to all methods that look like they're trying to overload the base class method, and renames the method in one case where it fairly clearly looks like that it's not supposed to be an overload. BUG=pdfium:29 R=bo_xu@foxitsoftware.com Review URL: https://codereview.chromium.org/416383004
2014-07-30Fix incorrect override of GetLayoutOrder().Nico Weber
fsdk_baseform.h:63:19: error: 'CPDFSDK_Widget::GetLayoutOrder' hides overloaded virtual function [-Werror,-Woverloaded-virtual] virtual int GetLayoutOrder() {return 2;} ^ fsdk_baseannot.h:70:18: note: hidden overloaded virtual function 'CPDFSDK_Annot::GetLayoutOrder' declared here: different qualifiers (const vs none) virtual int GetLayoutOrder() const { return 5; } ^ On Windows, I believe MSVS treats these as override since it's such a common and easy mistake, but clang and gcc do what the standard specifies. Add a "const" to the function in the subclass so that this is actually an override, as intended. BUG=pdfium:29 R=bo_xu@foxitsoftware.com Review URL: https://codereview.chromium.org/427173002
2014-07-30Fix the potential integer overflow from 'offset+size' in extension.h and ↵JUN FANG
fpdfview.cpp BUG=397258 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/419063002
2014-07-30Speculative fix for uninitialized value in CFX_ByteString().Tom Sepez
If somehow different length values could be obtained by two successive calls to Doc_getFilePath() (and FieldBrowse() for that matter), and the method is true to the API documentation that says "The return value always indicated number of bytes required for the buffer, even when there is no buffer specified, or the buffer size is less then required", then it is possible to get a returned length describing memory beyond the current buffer. We can make the corresponding JS_docGetFilePath() method more robust against this case by applying better checks to the returned value. This probably is unrelated since ASAN seems to be flagging the corresponding bug as UAF, but doesn't hurt to make things more robust. BUG=392956 R=jun_fang@foxitsoftware.com Review URL: https://codereview.chromium.org/423233002
2014-07-29Tidy up app::response().Tom Sepez
Follow-up from https://codereview.chromium.org/424883002/ - Remove some stray whitespace. - Fix "else after return". - Remove unused swResponse local. - Treat unexpectedly large responses as errors. BUG= R=jun_fang@foxitsoftware.com Review URL: https://codereview.chromium.org/423953002
2014-07-29Fix a few more warnings in chromium_code mode.Nico Weber
No intended behavior change. - Remove more unused variables, functions, member variables. - Put a few constructor initializers in the order they execute in. - Add braces for subobject initializers. - Fix a handful of signed / unsigned comparisons. BUG=pdfium:29 R=bo_xu@foxitsoftware.com Review URL: https://codereview.chromium.org/429593005
2014-07-29Remove a few unused variables, functions, and tables.Nico Weber
Found by clang's -Wunused-variable, -Wunused-function, -Wunused-const-variable. BUG=none R=bo_xu@foxitsoftware.com Review URL: https://codereview.chromium.org/404653005
2014-07-23Fix potential memory violation in CJS_PublicMethods::StrRTrim()Tom Sepez
BUG=395266 R=jun_fang@foxitsoftware.com Review URL: https://codereview.chromium.org/411713003
2014-07-23Fix lookahead beyond bounds in CJS_PublicMethods::MakeFormatDate().Tom Sepez
BUG=396255 R=jun_fang@foxitsoftware.com Review URL: https://codereview.chromium.org/407243003
2014-07-23Fix FPDF_RenderPage 2x zoom in when bBackgroundAlphaNeeded is trueBo Xu
BUG=179413 R=thestig@chromium.org Review URL: https://codereview.chromium.org/410073002
2014-07-18Fix bounds checking in CJS_PublicMethods::MakeRegularDate().Tom Sepez
The function is looking ahead N characters at both its "format" and "value" strings without validating that accesses are in bounds. Add those validations. There are also duplicate checks in the else-branches which re-test the inverse of the if-branch. These are removed for simplicity. I also tidied some stray whitespace in the function while I was at it. BUG=393831 R=jun_fang@foxitsoftware.com Review URL: https://codereview.chromium.org/395303004
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