diff options
Diffstat (limited to 'fpdfsdk/fpdfview.cpp')
| -rw-r--r-- | fpdfsdk/fpdfview.cpp | 400 |
1 files changed, 12 insertions, 388 deletions
diff --git a/fpdfsdk/fpdfview.cpp b/fpdfsdk/fpdfview.cpp index a9078102e3..9a334d5fe6 100644 --- a/fpdfsdk/fpdfview.cpp +++ b/fpdfsdk/fpdfview.cpp @@ -6,55 +6,49 @@ #include "public/fpdfview.h" -#include <memory> #include <utility> #include <vector> #include "core/fpdfapi/cpdf_modulemgr.h" #include "core/fpdfapi/cpdf_pagerendercontext.h" -#include "core/fpdfapi/page/cpdf_contentmarkitem.h" -#include "core/fpdfapi/page/cpdf_image.h" -#include "core/fpdfapi/page/cpdf_imageobject.h" #include "core/fpdfapi/page/cpdf_page.h" -#include "core/fpdfapi/page/cpdf_pageobject.h" -#include "core/fpdfapi/page/cpdf_pathobject.h" #include "core/fpdfapi/parser/cpdf_array.h" #include "core/fpdfapi/parser/cpdf_dictionary.h" #include "core/fpdfapi/parser/cpdf_document.h" +#include "core/fpdfapi/parser/cpdf_name.h" +#include "core/fpdfapi/parser/cpdf_parser.h" #include "core/fpdfapi/parser/fpdf_parser_decode.h" #include "core/fpdfapi/render/cpdf_progressiverenderer.h" +#include "core/fpdfapi/render/cpdf_rendercontext.h" #include "core/fpdfapi/render/cpdf_renderoptions.h" #include "core/fpdfdoc/cpdf_annotlist.h" #include "core/fpdfdoc/cpdf_nametree.h" #include "core/fpdfdoc/cpdf_occontext.h" #include "core/fpdfdoc/cpdf_viewerpreferences.h" -#include "core/fxcrt/fx_memory.h" -#include "core/fxcrt/fx_safe_types.h" #include "core/fxcrt/fx_stream.h" +#include "core/fxcrt/fx_system.h" #include "core/fxge/cfx_defaultrenderdevice.h" #include "core/fxge/cfx_gemodule.h" +#include "core/fxge/cfx_renderdevice.h" +#include "fpdfsdk/cpdfsdk_customaccess.h" #include "fpdfsdk/cpdfsdk_formfillenvironment.h" +#include "fpdfsdk/cpdfsdk_memoryaccess.h" #include "fpdfsdk/cpdfsdk_pageview.h" #include "fpdfsdk/fsdk_define.h" #include "fpdfsdk/fsdk_pauseadapter.h" #include "fxjs/ijs_runtime.h" -#include "public/fpdf_edit.h" -#include "public/fpdf_ext.h" #include "public/fpdf_formfill.h" -#include "public/fpdf_progressive.h" -#include "third_party/base/allocator/partition_allocator/partition_alloc.h" -#include "third_party/base/numerics/safe_conversions_impl.h" #include "third_party/base/ptr_util.h" #ifdef PDF_ENABLE_XFA #include "fpdfsdk/fpdfxfa/cpdfxfa_context.h" #include "fpdfsdk/fpdfxfa/cpdfxfa_page.h" -#include "fpdfsdk/fpdfxfa/cxfa_fwladaptertimermgr.h" #include "fxbarcode/BC_Library.h" #endif // PDF_ENABLE_XFA #if _FX_PLATFORM_ == _FX_PLATFORM_WINDOWS_ #include "core/fxge/cfx_windowsrenderdevice.h" +#include "public/fpdf_edit.h" // These checks are here because core/ and public/ cannot depend on each other. static_assert(WindowsPrintMode::kModeEmf == FPDF_PRINTMODE_EMF, @@ -132,149 +126,6 @@ void RenderPageImpl(CPDF_PageRenderContext* pContext, pContext->m_pDevice->RestoreState(false); } -class CPDF_CustomAccess final : public IFX_SeekableReadStream { - public: - template <typename T, typename... Args> - friend RetainPtr<T> pdfium::MakeRetain(Args&&... args); - - // IFX_SeekableReadStream - FX_FILESIZE GetSize() override; - bool ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) override; - - private: - explicit CPDF_CustomAccess(FPDF_FILEACCESS* pFileAccess); - - FPDF_FILEACCESS m_FileAccess; -}; - -CPDF_CustomAccess::CPDF_CustomAccess(FPDF_FILEACCESS* pFileAccess) - : m_FileAccess(*pFileAccess) {} - -FX_FILESIZE CPDF_CustomAccess::GetSize() { - return m_FileAccess.m_FileLen; -} - -bool CPDF_CustomAccess::ReadBlock(void* buffer, - FX_FILESIZE offset, - size_t size) { - if (offset < 0) - return false; - - FX_SAFE_FILESIZE newPos = pdfium::base::checked_cast<FX_FILESIZE>(size); - newPos += offset; - if (!newPos.IsValid() || - newPos.ValueOrDie() > static_cast<FX_FILESIZE>(m_FileAccess.m_FileLen)) { - return false; - } - return !!m_FileAccess.m_GetBlock(m_FileAccess.m_Param, offset, - static_cast<uint8_t*>(buffer), size); -} - -#ifdef PDF_ENABLE_XFA -class FPDF_FileHandlerContext : public IFX_SeekableStream { - public: - template <typename T, typename... Args> - friend RetainPtr<T> pdfium::MakeRetain(Args&&... args); - - ~FPDF_FileHandlerContext() override; - - // IFX_SeekableStream: - FX_FILESIZE GetSize() override; - bool IsEOF() override; - FX_FILESIZE GetPosition() override; - bool ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) override; - size_t ReadBlock(void* buffer, size_t size) override; - bool WriteBlock(const void* buffer, FX_FILESIZE offset, size_t size) override; - bool Flush() override; - - void SetPosition(FX_FILESIZE pos) { m_nCurPos = pos; } - - protected: - explicit FPDF_FileHandlerContext(FPDF_FILEHANDLER* pFS); - - FPDF_FILEHANDLER* m_pFS; - FX_FILESIZE m_nCurPos; -}; - -FPDF_FileHandlerContext::FPDF_FileHandlerContext(FPDF_FILEHANDLER* pFS) { - m_pFS = pFS; - m_nCurPos = 0; -} - -FPDF_FileHandlerContext::~FPDF_FileHandlerContext() { - if (m_pFS && m_pFS->Release) - m_pFS->Release(m_pFS->clientData); -} - -FX_FILESIZE FPDF_FileHandlerContext::GetSize() { - if (m_pFS && m_pFS->GetSize) - return (FX_FILESIZE)m_pFS->GetSize(m_pFS->clientData); - return 0; -} - -bool FPDF_FileHandlerContext::IsEOF() { - return m_nCurPos >= GetSize(); -} - -FX_FILESIZE FPDF_FileHandlerContext::GetPosition() { - return m_nCurPos; -} - -bool FPDF_FileHandlerContext::ReadBlock(void* buffer, - FX_FILESIZE offset, - size_t size) { - if (!buffer || !size || !m_pFS->ReadBlock) - return false; - - if (m_pFS->ReadBlock(m_pFS->clientData, (FPDF_DWORD)offset, buffer, - (FPDF_DWORD)size) == 0) { - m_nCurPos = offset + size; - return true; - } - return false; -} - -size_t FPDF_FileHandlerContext::ReadBlock(void* buffer, size_t size) { - if (!buffer || !size || !m_pFS->ReadBlock) - return 0; - - FX_FILESIZE nSize = GetSize(); - if (m_nCurPos >= nSize) - return 0; - FX_FILESIZE dwAvail = nSize - m_nCurPos; - if (dwAvail < (FX_FILESIZE)size) - size = static_cast<size_t>(dwAvail); - if (m_pFS->ReadBlock(m_pFS->clientData, (FPDF_DWORD)m_nCurPos, buffer, - (FPDF_DWORD)size) == 0) { - m_nCurPos += size; - return size; - } - - return 0; -} - -bool FPDF_FileHandlerContext::WriteBlock(const void* buffer, - FX_FILESIZE offset, - size_t size) { - if (!m_pFS || !m_pFS->WriteBlock) - return false; - - if (m_pFS->WriteBlock(m_pFS->clientData, (FPDF_DWORD)offset, buffer, - (FPDF_DWORD)size) == 0) { - m_nCurPos = offset + size; - return true; - } - return false; -} - -bool FPDF_FileHandlerContext::Flush() { - if (!m_pFS || !m_pFS->Flush) - return true; - - return m_pFS->Flush(m_pFS->clientData) == 0; -} -#endif // PDF_ENABLE_XFA - FPDF_DOCUMENT LoadDocumentImpl( const RetainPtr<IFX_SeekableReadStream>& pFileAccess, FPDF_BYTESTRING password) { @@ -299,172 +150,6 @@ FPDF_DOCUMENT LoadDocumentImpl( } // namespace -UnderlyingDocumentType* UnderlyingFromFPDFDocument(FPDF_DOCUMENT doc) { - return static_cast<UnderlyingDocumentType*>(doc); -} - -FPDF_DOCUMENT FPDFDocumentFromUnderlying(UnderlyingDocumentType* doc) { - return static_cast<FPDF_DOCUMENT>(doc); -} - -UnderlyingPageType* UnderlyingFromFPDFPage(FPDF_PAGE page) { - return static_cast<UnderlyingPageType*>(page); -} - -CPDF_Document* CPDFDocumentFromFPDFDocument(FPDF_DOCUMENT doc) { -#ifdef PDF_ENABLE_XFA - return doc ? UnderlyingFromFPDFDocument(doc)->GetPDFDoc() : nullptr; -#else // PDF_ENABLE_XFA - return UnderlyingFromFPDFDocument(doc); -#endif // PDF_ENABLE_XFA -} - -FPDF_DOCUMENT FPDFDocumentFromCPDFDocument(CPDF_Document* doc) { -#ifdef PDF_ENABLE_XFA - return doc ? FPDFDocumentFromUnderlying( - new CPDFXFA_Context(pdfium::WrapUnique(doc))) - : nullptr; -#else // PDF_ENABLE_XFA - return FPDFDocumentFromUnderlying(doc); -#endif // PDF_ENABLE_XFA -} - -CPDF_Page* CPDFPageFromFPDFPage(FPDF_PAGE page) { -#ifdef PDF_ENABLE_XFA - return page ? UnderlyingFromFPDFPage(page)->GetPDFPage() : nullptr; -#else // PDF_ENABLE_XFA - return UnderlyingFromFPDFPage(page); -#endif // PDF_ENABLE_XFA -} - -CPDF_PathObject* CPDFPathObjectFromFPDFPageObject(FPDF_PAGEOBJECT page_object) { - auto* obj = CPDFPageObjectFromFPDFPageObject(page_object); - return obj ? obj->AsPath() : nullptr; -} - -CPDF_PageObject* CPDFPageObjectFromFPDFPageObject(FPDF_PAGEOBJECT page_object) { - return static_cast<CPDF_PageObject*>(page_object); -} - -const CPDF_ContentMarkItem* CPDFContentMarkItemFromFPDFPageObjectMark( - FPDF_PAGEOBJECTMARK mark) { - return static_cast<const CPDF_ContentMarkItem*>(mark); -} - -CPDF_Object* CPDFObjectFromFPDFAttachment(FPDF_ATTACHMENT attachment) { - return static_cast<CPDF_Object*>(attachment); -} - -ByteString CFXByteStringFromFPDFWideString(FPDF_WIDESTRING wide_string) { - return WideString::FromUTF16LE(wide_string, - WideString::WStringLength(wide_string)) - .UTF8Encode(); -} - -CFX_DIBitmap* CFXBitmapFromFPDFBitmap(FPDF_BITMAP bitmap) { - return static_cast<CFX_DIBitmap*>(bitmap); -} - -CFX_FloatRect CFXFloatRectFromFSRECTF(const FS_RECTF& rect) { - return CFX_FloatRect(rect.left, rect.bottom, rect.right, rect.top); -} - -void FSRECTFFromCFXFloatRect(const CFX_FloatRect& rect, FS_RECTF* out_rect) { - out_rect->left = rect.left; - out_rect->top = rect.top; - out_rect->right = rect.right; - out_rect->bottom = rect.bottom; -} - -const FX_PATHPOINT* FXPathPointFromFPDFPathSegment(FPDF_PATHSEGMENT segment) { - return static_cast<const FX_PATHPOINT*>(segment); -} - -unsigned long Utf16EncodeMaybeCopyAndReturnLength(const WideString& text, - void* buffer, - unsigned long buflen) { - ByteString encoded_text = text.UTF16LE_Encode(); - unsigned long len = encoded_text.GetLength(); - if (buffer && len <= buflen) - memcpy(buffer, encoded_text.c_str(), len); - return len; -} - -unsigned long DecodeStreamMaybeCopyAndReturnLength(const CPDF_Stream* stream, - void* buffer, - unsigned long buflen) { - ASSERT(stream); - uint8_t* data = stream->GetRawData(); - uint32_t len = stream->GetRawSize(); - CPDF_Dictionary* dict = stream->GetDict(); - CPDF_Object* decoder = dict ? dict->GetDirectObjectFor("Filter") : nullptr; - if (decoder && (decoder->IsArray() || decoder->IsName())) { - // Decode the stream if one or more stream filters are specified. - uint8_t* decoded_data = nullptr; - uint32_t decoded_len = 0; - ByteString dummy_last_decoder; - CPDF_Dictionary* dummy_last_param; - if (PDF_DataDecode(data, len, dict, dict->GetIntegerFor("DL"), false, - &decoded_data, &decoded_len, &dummy_last_decoder, - &dummy_last_param)) { - if (buffer && buflen >= decoded_len) - memcpy(buffer, decoded_data, decoded_len); - - // Free the buffer for the decoded data if it was allocated by - // PDF_DataDecode(). Note that for images with a single image-specific - // filter, |decoded_data| is directly assigned to be |data|, so - // |decoded_data| does not need to be freed. - if (decoded_data != data) - FX_Free(decoded_data); - - return decoded_len; - } - } - // Copy the raw data and return its length if there is no valid filter - // specified or if decoding failed. - if (buffer && buflen >= len) - memcpy(buffer, data, len); - - return len; -} - -RetainPtr<IFX_SeekableReadStream> MakeSeekableReadStream( - FPDF_FILEACCESS* pFileAccess) { - return pdfium::MakeRetain<CPDF_CustomAccess>(pFileAccess); -} - -#ifdef PDF_ENABLE_XFA -RetainPtr<IFX_SeekableStream> MakeSeekableStream( - FPDF_FILEHANDLER* pFilehandler) { - return pdfium::MakeRetain<FPDF_FileHandlerContext>(pFilehandler); -} -#endif // PDF_ENABLE_XFA - -// 0 bit: FPDF_POLICY_MACHINETIME_ACCESS -static uint32_t foxit_sandbox_policy = 0xFFFFFFFF; - -void FSDK_SetSandBoxPolicy(FPDF_DWORD policy, FPDF_BOOL enable) { - switch (policy) { - case FPDF_POLICY_MACHINETIME_ACCESS: { - if (enable) - foxit_sandbox_policy |= 0x01; - else - foxit_sandbox_policy &= 0xFFFFFFFE; - } break; - default: - break; - } -} - -FPDF_BOOL FSDK_IsSandBoxPolicyEnabled(FPDF_DWORD policy) { - switch (policy) { - case FPDF_POLICY_MACHINETIME_ACCESS: - return !!(foxit_sandbox_policy & 0x01); - default: - return false; - } -} - FPDF_EXPORT void FPDF_CALLCONV FPDF_InitLibrary() { FPDF_InitLibraryWithConfig(nullptr); } @@ -507,40 +192,6 @@ FPDF_EXPORT void FPDF_CALLCONV FPDF_DestroyLibrary() { g_bLibraryInitialized = false; } -#ifndef _WIN32 -int g_LastError; -void SetLastError(int err) { - g_LastError = err; -} - -int GetLastError() { - return g_LastError; -} -#endif // _WIN32 - -void ProcessParseError(CPDF_Parser::Error err) { - uint32_t err_code = FPDF_ERR_SUCCESS; - // Translate FPDFAPI error code to FPDFVIEW error code - switch (err) { - case CPDF_Parser::SUCCESS: - err_code = FPDF_ERR_SUCCESS; - break; - case CPDF_Parser::FILE_ERROR: - err_code = FPDF_ERR_FILE; - break; - case CPDF_Parser::FORMAT_ERROR: - err_code = FPDF_ERR_FORMAT; - break; - case CPDF_Parser::PASSWORD_ERROR: - err_code = FPDF_ERR_PASSWORD; - break; - case CPDF_Parser::HANDLER_ERROR: - err_code = FPDF_ERR_SECURITY; - break; - } - SetLastError(err_code); -} - FPDF_EXPORT void FPDF_CALLCONV FPDF_SetSandBoxPolicy(FPDF_DWORD policy, FPDF_BOOL enable) { return FSDK_SetSandBoxPolicy(policy, enable); @@ -606,44 +257,17 @@ FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDF_LoadXFA(FPDF_DOCUMENT document) { } #endif // PDF_ENABLE_XFA -class CMemFile final : public IFX_SeekableReadStream { - public: - static RetainPtr<CMemFile> Create(const uint8_t* pBuf, FX_FILESIZE size) { - return RetainPtr<CMemFile>(new CMemFile(pBuf, size)); - } - - FX_FILESIZE GetSize() override { return m_size; } - bool ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) override { - if (offset < 0) - return false; - - FX_SAFE_FILESIZE newPos = pdfium::base::checked_cast<FX_FILESIZE>(size); - newPos += offset; - if (!newPos.IsValid() || newPos.ValueOrDie() > m_size) - return false; - - memcpy(buffer, m_pBuf + offset, size); - return true; - } - - private: - CMemFile(const uint8_t* pBuf, FX_FILESIZE size) - : m_pBuf(pBuf), m_size(size) {} - - const uint8_t* const m_pBuf; - const FX_FILESIZE m_size; -}; - FPDF_EXPORT FPDF_DOCUMENT FPDF_CALLCONV FPDF_LoadMemDocument(const void* data_buf, int size, FPDF_BYTESTRING password) { - return LoadDocumentImpl( - CMemFile::Create(static_cast<const uint8_t*>(data_buf), size), password); + return LoadDocumentImpl(pdfium::MakeRetain<CPDFSDK_MemoryAccess>( + static_cast<const uint8_t*>(data_buf), size), + password); } FPDF_EXPORT FPDF_DOCUMENT FPDF_CALLCONV FPDF_LoadCustomDocument(FPDF_FILEACCESS* pFileAccess, FPDF_BYTESTRING password) { - return LoadDocumentImpl(pdfium::MakeRetain<CPDF_CustomAccess>(pFileAccess), + return LoadDocumentImpl(pdfium::MakeRetain<CPDFSDK_CustomAccess>(pFileAccess), password); } |