diff options
Diffstat (limited to 'core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp')
| -rw-r--r-- | core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp | 83 |
1 files changed, 35 insertions, 48 deletions
diff --git a/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp b/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp index 8b822a8b9c..12e2a3946c 100644 --- a/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp +++ b/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp @@ -784,29 +784,20 @@ FX_BOOL CPDF_Parser::RebuildCrossRef() { FX_FILESIZE obj_end = 0; CPDF_Object* pObject = ParseIndirectObjectAtByStrict( m_pDocument, obj_pos, objnum, NULL, &obj_end); - if (pObject) { - int iType = pObject->GetType(); - if (iType == PDFOBJ_STREAM) { - CPDF_Stream* pStream = (CPDF_Stream*)pObject; - CPDF_Dictionary* pDict = pStream->GetDict(); - if (pDict) { - if (pDict->KeyExist(FX_BSTRC("Type"))) { - CFX_ByteString bsValue = - pDict->GetString(FX_BSTRC("Type")); - if (bsValue == FX_BSTRC("XRef") && - pDict->KeyExist(FX_BSTRC("Size"))) { - CPDF_Object* pRoot = - pDict->GetElement(FX_BSTRC("Root")); - if (pRoot && pRoot->GetDict() && - pRoot->GetDict()->GetElement(FX_BSTRC("Pages"))) { - if (m_pTrailer) { - m_pTrailer->Release(); - } - m_pTrailer = ToDictionary(pDict->Clone()); - } + if (CPDF_Stream* pStream = ToStream(pObject)) { + if (CPDF_Dictionary* pDict = pStream->GetDict()) { + if ((pDict->KeyExist(FX_BSTRC("Type"))) && + (pDict->GetString(FX_BSTRC("Type")) == + FX_BSTRC("XRef") && + pDict->KeyExist(FX_BSTRC("Size")))) { + CPDF_Object* pRoot = pDict->GetElement(FX_BSTRC("Root")); + if (pRoot && pRoot->GetDict() && + pRoot->GetDict()->GetElement(FX_BSTRC("Pages"))) { + if (m_pTrailer) + m_pTrailer->Release(); + m_pTrailer = ToDictionary(pDict->Clone()); } } - } } } FX_FILESIZE offset = 0; @@ -855,16 +846,12 @@ FX_BOOL CPDF_Parser::RebuildCrossRef() { m_Syntax.RestorePos(pos + i - m_Syntax.m_HeaderOffset); CPDF_Object* pObj = m_Syntax.GetObject(m_pDocument, 0, 0, 0); if (pObj) { - if (!pObj->IsDictionary() && pObj->GetType() != PDFOBJ_STREAM) { + if (!pObj->IsDictionary() && !pObj->AsStream()) { pObj->Release(); } else { - CPDF_Dictionary* pTrailer = NULL; - if (pObj->GetType() == PDFOBJ_STREAM) { - pTrailer = ((CPDF_Stream*)pObj)->GetDict(); - } else { - pTrailer = pObj->AsDictionary(); - } - if (pTrailer) { + CPDF_Stream* pStream = pObj->AsStream(); + if (CPDF_Dictionary* pTrailer = + pStream ? pStream->GetDict() : pObj->AsDictionary()) { if (m_pTrailer) { CPDF_Object* pRoot = pTrailer->GetElement(FX_BSTRC("Root")); @@ -886,7 +873,7 @@ FX_BOOL CPDF_Parser::RebuildCrossRef() { pObj->Release(); } } else { - if (pObj->GetType() == PDFOBJ_STREAM) { + if (pObj->IsStream()) { m_pTrailer = ToDictionary(pTrailer->Clone()); pObj->Release(); } else { @@ -1005,25 +992,25 @@ FX_BOOL CPDF_Parser::RebuildCrossRef() { FX_BOOL CPDF_Parser::LoadCrossRefV5(FX_FILESIZE pos, FX_FILESIZE& prev, FX_BOOL bMainXRef) { - CPDF_Stream* pStream = - (CPDF_Stream*)ParseIndirectObjectAt(m_pDocument, pos, 0, NULL); - if (!pStream) { + CPDF_Object* pObject = ParseIndirectObjectAt(m_pDocument, pos, 0, nullptr); + if (!pObject) return FALSE; - } + if (m_pDocument) { CPDF_Dictionary* pDict = m_pDocument->GetRoot(); - if (!pDict || pDict->GetObjNum() != pStream->m_ObjNum) { - m_pDocument->InsertIndirectObject(pStream->m_ObjNum, pStream); + if (!pDict || pDict->GetObjNum() != pObject->m_ObjNum) { + m_pDocument->InsertIndirectObject(pObject->m_ObjNum, pObject); } else { - if (pStream->GetType() == PDFOBJ_STREAM) { - pStream->Release(); - } + if (pObject->IsStream()) + pObject->Release(); return FALSE; } } - if (pStream->GetType() != PDFOBJ_STREAM) { + + CPDF_Stream* pStream = pObject->AsStream(); + if (!pStream) return FALSE; - } + prev = pStream->GetDict()->GetInteger(FX_BSTRC("Prev")); int32_t size = pStream->GetDict()->GetInteger(FX_BSTRC("Size")); if (size < 0) { @@ -1245,15 +1232,15 @@ CPDF_Object* CPDF_Parser::ParseIndirectObject(CPDF_IndirectObjects* pObjList, } CPDF_StreamAcc* CPDF_Parser::GetObjectStream(FX_DWORD objnum) { - CPDF_StreamAcc* pStreamAcc = NULL; - if (m_ObjectStreamMap.Lookup((void*)(uintptr_t)objnum, (void*&)pStreamAcc)) { + CPDF_StreamAcc* pStreamAcc = nullptr; + if (m_ObjectStreamMap.Lookup((void*)(uintptr_t)objnum, (void*&)pStreamAcc)) return pStreamAcc; - } + const CPDF_Stream* pStream = - m_pDocument ? (CPDF_Stream*)m_pDocument->GetIndirectObject(objnum) : NULL; - if (pStream == NULL || pStream->GetType() != PDFOBJ_STREAM) { - return NULL; - } + ToStream(m_pDocument ? m_pDocument->GetIndirectObject(objnum) : nullptr); + if (!pStream) + return nullptr; + pStreamAcc = new CPDF_StreamAcc; pStreamAcc->LoadAllData(pStream); m_ObjectStreamMap.SetAt((void*)(uintptr_t)objnum, pStreamAcc); |