diff options
| author | Jun Fang <jun_fang@foxitsoftware.com> | 2015-09-25 20:32:46 -0700 |
|---|---|---|
| committer | Jun Fang <jun_fang@foxitsoftware.com> | 2015-09-25 20:32:46 -0700 |
| commit | 9bd18183ba8210c91d71c3060146235750a4c71c (patch) | |
| tree | e1950c29e9e295dd247a0edc5ed8d490e18800d8 /core/src/fpdfapi/fpdf_page/fpdf_page_parser_old.cpp | |
| parent | 163f59b9a0b019539e9a463ec183c964e7317d5b (diff) | |
| download | pdfium-9bd18183ba8210c91d71c3060146235750a4c71c.tar.xz | |
Fix the issue that pdfium swallows 'fi' or 'ff' in some pdf files
Pdfium swallows 'fi' or 'ff' in some tested files because it doesn't load the embedded font file correctly. The root cause is that there is incorrect keyword like 'ngendstream' in the stream of the embedded font file. Pdfium tries to find another correct keyword but uses wrong offset rather than accumulated offset.
BUG=524043
R=thestig@chromium.org, tsepez@chromium.org
Review URL: https://codereview.chromium.org/1307353005 .
Diffstat (limited to 'core/src/fpdfapi/fpdf_page/fpdf_page_parser_old.cpp')
| -rw-r--r-- | core/src/fpdfapi/fpdf_page/fpdf_page_parser_old.cpp | 34 |
1 files changed, 2 insertions, 32 deletions
diff --git a/core/src/fpdfapi/fpdf_page/fpdf_page_parser_old.cpp b/core/src/fpdfapi/fpdf_page/fpdf_page_parser_old.cpp index 48e9b98d3a..c9bcff6db6 100644 --- a/core/src/fpdfapi/fpdf_page/fpdf_page_parser_old.cpp +++ b/core/src/fpdfapi/fpdf_page/fpdf_page_parser_old.cpp @@ -9,27 +9,7 @@ #include "../../../include/fxcodec/fx_codec.h" #include "pageint.h" #include <limits.h> -const FX_CHAR* const _PDF_OpCharType = - "IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII" - "IIVIIIIVIIVIIIIIVVIIIIIIIIIIIIII" - "IIVVVVVVIVVVVVVIVVVVVIIVVIIIIIII" - "IIVVVVVVVVVVVVVVIVVVIIVVIVVIIIII" - "IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII" - "IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII" - "IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII" - "IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII"; -FX_BOOL _PDF_HasInvalidOpChar(const FX_CHAR* op) { - if (!op) { - return FALSE; - } - uint8_t ch; - while ((ch = *op++)) { - if (_PDF_OpCharType[ch] == 'I') { - return TRUE; - } - } - return FALSE; -} + class CPDF_StreamParserAutoClearer { public: CPDF_StreamParserAutoClearer(CPDF_StreamParser** scoped_variable, @@ -61,13 +41,7 @@ FX_DWORD CPDF_StreamContentParser::Parse(const uint8_t* pData, case CPDF_StreamParser::EndOfData: return m_pSyntax->GetPos(); case CPDF_StreamParser::Keyword: - if (!OnOperator((char*)syntax.GetWordBuf()) && - _PDF_HasInvalidOpChar((char*)syntax.GetWordBuf())) { - m_bAbort = TRUE; - } - if (m_bAbort) { - return m_pSyntax->GetPos(); - } + OnOperator((char*)syntax.GetWordBuf()); ClearAllParams(); break; case CPDF_StreamParser::Number: @@ -1126,10 +1100,6 @@ void CPDF_ContentParser::Continue(IFX_Pause* pPause) { m_CurrentOffset += m_pParser->Parse(m_pData + m_CurrentOffset, m_Size - m_CurrentOffset, PARSE_STEP_LIMIT); - if (m_pParser->ShouldAbort()) { - m_InternalStage = PAGEPARSE_STAGE_CHECKCLIP; - continue; - } } } if (m_InternalStage == PAGEPARSE_STAGE_CHECKCLIP) { |