diff options
Diffstat (limited to 'core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp')
| -rw-r--r-- | core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp | 594 |
1 files changed, 130 insertions, 464 deletions
diff --git a/core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp b/core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp index 6b512949ae..813c18a4c5 100644 --- a/core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp +++ b/core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp @@ -12,382 +12,38 @@ #include "core/include/fxcrt/fx_string.h" #include "third_party/base/stl_util.h" -namespace { - -const FX_DWORD kBlockSize = 1024; - -} // namespace - void CPDF_Object::Release() { if (m_ObjNum) { return; } Destroy(); } -void CPDF_Object::Destroy() { - switch (m_Type) { - case STRING: - delete AsString(); - break; - case NAME: - delete AsName(); - break; - case ARRAY: - delete AsArray(); - break; - case DICTIONARY: - delete AsDictionary(); - break; - case STREAM: - delete AsStream(); - break; - default: - delete this; - } -} - -const CPDF_Object* CPDF_Object::GetBasicObject() const { - const CPDF_Reference* pRef = AsReference(); - if (!pRef) { - // This is not an indirect reference. - return this; - } - if (!pRef->m_pObjList) - return nullptr; - return pRef->m_pObjList->GetIndirectObject(pRef->GetRefObjNum()); -} - -CFX_ByteString CPDF_Object::GetString() const { - const CPDF_Object* obj = GetBasicObject(); - if (obj) { - switch (obj->GetType()) { - case BOOLEAN: - return obj->AsBoolean()->GetString(); - case NUMBER: - return obj->AsNumber()->GetString(); - case STRING: - return obj->AsString()->GetString(); - case NAME: - return obj->AsName()->GetString(); - default: - break; - } - } - return CFX_ByteString(); -} - -CFX_ByteStringC CPDF_Object::GetConstString() const { - const CPDF_Object* obj = GetBasicObject(); - if (obj) { - FX_DWORD type = obj->GetType(); - if (type == STRING) { - CFX_ByteString str = obj->AsString()->GetString(); - return CFX_ByteStringC(str); - } - if (type == NAME) { - CFX_ByteString name = obj->AsName()->GetString(); - return CFX_ByteStringC(name); - } - } - return CFX_ByteStringC(); -} - -FX_FLOAT CPDF_Object::GetNumber() const { - const CPDF_Object* obj = GetBasicObject(); - if (obj && obj->GetType() == NUMBER) - return obj->AsNumber()->GetNumber(); - return 0; -} - -FX_FLOAT CPDF_Object::GetNumber16() const { - return GetNumber(); -} - -int CPDF_Object::GetInteger() const { - const CPDF_Object* obj = GetBasicObject(); - if (obj) { - FX_DWORD type = obj->GetType(); - if (type == BOOLEAN) - return obj->AsBoolean()->GetValue(); - if (type == NUMBER) - return obj->AsNumber()->GetInteger(); - } - return 0; -} - -CPDF_Dictionary* CPDF_Object::GetDict() const { - const CPDF_Object* obj = GetBasicObject(); - if (obj) { - FX_DWORD type = obj->GetType(); - if (type == DICTIONARY) { - // The method should be made non-const if we want to not be const. - // See bug #234. - return const_cast<CPDF_Dictionary*>(obj->AsDictionary()); - } - if (type == STREAM) - return obj->AsStream()->GetDict(); - } - return nullptr; -} - -CPDF_Array* CPDF_Object::GetArray() const { - // The method should be made non-const if we want to not be const. - // See bug #234. - return const_cast<CPDF_Array*>(AsArray()); -} - -void CPDF_Object::SetString(const CFX_ByteString& str) { - switch (m_Type) { - case BOOLEAN: - AsBoolean()->m_bValue = (str == "true"); - return; - case NUMBER: - AsNumber()->SetString(str); - return; - case STRING: - AsString()->m_String = str; - return; - case NAME: - AsName()->m_Name = str; - return; - default: - break; - } - ASSERT(FALSE); -} -FX_BOOL CPDF_Object::IsIdentical(CPDF_Object* pOther) const { - if (this == pOther) - return TRUE; - if (!pOther) - return FALSE; - if (pOther->m_Type != m_Type) { - if (IsReference() && GetDirect()) - return GetDirect()->IsIdentical(pOther); - if (pOther->IsReference()) - return IsIdentical(pOther->GetDirect()); - return FALSE; - } - switch (m_Type) { - case BOOLEAN: - return AsBoolean()->Identical(pOther->AsBoolean()); - case NUMBER: - return AsNumber()->Identical(pOther->AsNumber()); - case STRING: - return AsString()->Identical(pOther->AsString()); - case NAME: - return AsName()->Identical(pOther->AsName()); - case ARRAY: - return AsArray()->Identical(pOther->AsArray()); - case DICTIONARY: - return AsDictionary()->Identical(pOther->AsDictionary()); - case NULLOBJ: - return TRUE; - case STREAM: - return AsStream()->Identical(pOther->AsStream()); - case REFERENCE: - return AsReference()->Identical(pOther->AsReference()); - } - return FALSE; -} - -CPDF_Object* CPDF_Object::GetDirect() const { - const CPDF_Reference* pRef = AsReference(); - if (!pRef) - return const_cast<CPDF_Object*>(this); - if (!pRef->m_pObjList) - return nullptr; - return pRef->m_pObjList->GetIndirectObject(pRef->GetRefObjNum()); -} - -CPDF_Object* CPDF_Object::Clone(FX_BOOL bDirect) const { - std::set<FX_DWORD> visited; - return CloneInternal(bDirect, &visited); -} -CPDF_Object* CPDF_Object::CloneInternal(FX_BOOL bDirect, - std::set<FX_DWORD>* visited) const { - switch (m_Type) { - case BOOLEAN: - return new CPDF_Boolean(AsBoolean()->m_bValue); - case NUMBER: { - const CPDF_Number* pThis = AsNumber(); - return new CPDF_Number(pThis->m_bInteger ? pThis->m_Integer - : pThis->m_Float); - } - case STRING: { - const CPDF_String* pString = AsString(); - return new CPDF_String(pString->m_String, pString->IsHex()); - } - case NAME: - return new CPDF_Name(AsName()->m_Name); - case ARRAY: { - CPDF_Array* pCopy = new CPDF_Array(); - const CPDF_Array* pThis = AsArray(); - int n = pThis->GetCount(); - for (int i = 0; i < n; i++) { - CPDF_Object* value = pThis->m_Objects.GetAt(i); - pCopy->m_Objects.Add(value->CloneInternal(bDirect, visited)); - } - return pCopy; - } - case DICTIONARY: { - CPDF_Dictionary* pCopy = new CPDF_Dictionary(); - const CPDF_Dictionary* pThis = AsDictionary(); - for (const auto& it : *pThis) { - pCopy->m_Map.insert(std::make_pair( - it.first, it.second->CloneInternal(bDirect, visited))); - } - return pCopy; - } - case NULLOBJ: { - return new CPDF_Null; - } - case STREAM: { - const CPDF_Stream* pThis = AsStream(); - CPDF_StreamAcc acc; - acc.LoadAllData(pThis, TRUE); - FX_DWORD streamSize = acc.GetSize(); - CPDF_Dictionary* pDict = pThis->GetDict(); - if (pDict) { - pDict = ToDictionary(pDict->CloneInternal(bDirect, visited)); - } - return new CPDF_Stream(acc.DetachData(), streamSize, pDict); - } - case REFERENCE: { - const CPDF_Reference* pRef = AsReference(); - FX_DWORD obj_num = pRef->GetRefObjNum(); - if (bDirect && !pdfium::ContainsKey(*visited, obj_num)) { - visited->insert(obj_num); - auto* pDirect = pRef->GetDirect(); - return pDirect ? pDirect->CloneInternal(TRUE, visited) : nullptr; - } - return new CPDF_Reference(pRef->m_pObjList, obj_num); - } - } - return NULL; -} -CPDF_Object* CPDF_Object::CloneRef(CPDF_IndirectObjectHolder* pDoc) const { - if (m_ObjNum) { - return new CPDF_Reference(pDoc, m_ObjNum); - } - return Clone(); -} -CFX_WideString CPDF_Object::GetUnicodeText(CFX_CharMap* pCharMap) const { - if (const CPDF_String* pString = AsString()) - return PDF_DecodeText(pString->m_String, pCharMap); - - if (const CPDF_Stream* pStream = AsStream()) { - CPDF_StreamAcc stream; - stream.LoadAllData(pStream, FALSE); - CFX_WideString result = - PDF_DecodeText(stream.GetData(), stream.GetSize(), pCharMap); - return result; - } - if (const CPDF_Name* pName = AsName()) - return PDF_DecodeText(pName->m_Name, pCharMap); - return CFX_WideString(); -} -void CPDF_Object::SetUnicodeText(const FX_WCHAR* pUnicodes, int len) { - if (CPDF_String* pString = AsString()) { - pString->m_String = PDF_EncodeText(pUnicodes, len); - } else if (CPDF_Stream* pStream = AsStream()) { - CFX_ByteString result = PDF_EncodeText(pUnicodes, len); - pStream->SetData((uint8_t*)result.c_str(), result.GetLength(), FALSE, - FALSE); - } -} - -CPDF_Array* CPDF_Object::AsArray() { - return IsArray() ? static_cast<CPDF_Array*>(this) : nullptr; -} - -const CPDF_Array* CPDF_Object::AsArray() const { - return IsArray() ? static_cast<const CPDF_Array*>(this) : nullptr; -} -CPDF_Boolean* CPDF_Object::AsBoolean() { - return IsBoolean() ? static_cast<CPDF_Boolean*>(this) : nullptr; -} - -const CPDF_Boolean* CPDF_Object::AsBoolean() const { - return IsBoolean() ? static_cast<const CPDF_Boolean*>(this) : nullptr; -} - -CPDF_Dictionary* CPDF_Object::AsDictionary() { - return IsDictionary() ? static_cast<CPDF_Dictionary*>(this) : nullptr; -} - -const CPDF_Dictionary* CPDF_Object::AsDictionary() const { - return IsDictionary() ? static_cast<const CPDF_Dictionary*>(this) : nullptr; -} - -CPDF_Name* CPDF_Object::AsName() { - return IsName() ? static_cast<CPDF_Name*>(this) : nullptr; -} - -const CPDF_Name* CPDF_Object::AsName() const { - return IsName() ? static_cast<const CPDF_Name*>(this) : nullptr; -} - -CPDF_Number* CPDF_Object::AsNumber() { - return IsNumber() ? static_cast<CPDF_Number*>(this) : nullptr; -} - -const CPDF_Number* CPDF_Object::AsNumber() const { - return IsNumber() ? static_cast<const CPDF_Number*>(this) : nullptr; -} - -CPDF_Reference* CPDF_Object::AsReference() { - return IsReference() ? static_cast<CPDF_Reference*>(this) : nullptr; -} - -const CPDF_Reference* CPDF_Object::AsReference() const { - return IsReference() ? static_cast<const CPDF_Reference*>(this) : nullptr; +CPDF_Number::CPDF_Number(const CFX_ByteStringC& str) { + FX_atonum(str, m_bInteger, &m_Integer); } -CPDF_Stream* CPDF_Object::AsStream() { - return IsStream() ? static_cast<CPDF_Stream*>(this) : nullptr; +void CPDF_Number::SetString(const CFX_ByteString& str) { + FX_atonum(str, m_bInteger, &m_Integer); } -const CPDF_Stream* CPDF_Object::AsStream() const { - return IsStream() ? static_cast<const CPDF_Stream*>(this) : nullptr; +CFX_ByteString CPDF_Number::GetString() const { + return m_bInteger ? CFX_ByteString::FormatInteger(m_Integer, FXFORMAT_SIGNED) + : CFX_ByteString::FormatFloat(m_Float); } -CPDF_String* CPDF_Object::AsString() { - return IsString() ? static_cast<CPDF_String*>(this) : nullptr; +CPDF_String::CPDF_String(const CFX_WideString& str) : m_bHex(FALSE) { + m_String = PDF_EncodeText(str); } -const CPDF_String* CPDF_Object::AsString() const { - return IsString() ? static_cast<const CPDF_String*>(this) : nullptr; +CFX_WideString CPDF_String::GetUnicodeText(CFX_CharMap* pCharMap) const { + return PDF_DecodeText(m_String, pCharMap); } -CPDF_Number::CPDF_Number(int value) - : CPDF_Object(NUMBER), m_bInteger(TRUE), m_Integer(value) {} - -CPDF_Number::CPDF_Number(FX_FLOAT value) - : CPDF_Object(NUMBER), m_bInteger(FALSE), m_Float(value) {} - -CPDF_Number::CPDF_Number(const CFX_ByteStringC& str) : CPDF_Object(NUMBER) { - FX_atonum(str, m_bInteger, &m_Integer); +CFX_WideString CPDF_Name::GetUnicodeText(CFX_CharMap* pCharMap) const { + return PDF_DecodeText(m_Name, pCharMap); } -void CPDF_Number::SetString(const CFX_ByteStringC& str) { - FX_atonum(str, m_bInteger, &m_Integer); -} -FX_BOOL CPDF_Number::Identical(CPDF_Number* pOther) const { - return m_bInteger == pOther->m_bInteger && m_Integer == pOther->m_Integer; -} -CFX_ByteString CPDF_Number::GetString() const { - return m_bInteger ? CFX_ByteString::FormatInteger(m_Integer, FXFORMAT_SIGNED) - : CFX_ByteString::FormatFloat(m_Float); -} -void CPDF_Number::SetNumber(FX_FLOAT value) { - m_bInteger = FALSE; - m_Float = value; -} -CPDF_String::CPDF_String(const CFX_WideString& str) - : CPDF_Object(STRING), m_bHex(FALSE) { - m_String = PDF_EncodeText(str); -} CPDF_Array::~CPDF_Array() { int size = m_Objects.GetSize(); CPDF_Object** pList = m_Objects.GetData(); @@ -396,6 +52,16 @@ CPDF_Array::~CPDF_Array() { pList[i]->Release(); } } + +CPDF_Object* CPDF_Array::Clone(FX_BOOL bDirect) const { + CPDF_Array* pCopy = new CPDF_Array(); + for (int i = 0; i < GetCount(); i++) { + CPDF_Object* value = m_Objects.GetAt(i); + pCopy->m_Objects.Add(value->Clone(bDirect)); + } + return pCopy; +} + CFX_FloatRect CPDF_Array::GetRect() { CFX_FloatRect rect; if (!IsArray() || m_Objects.GetSize() != 4) @@ -407,6 +73,7 @@ CFX_FloatRect CPDF_Array::GetRect() { rect.top = GetNumberAt(3); return rect; } + CFX_Matrix CPDF_Array::GetMatrix() { CFX_Matrix matrix; if (!IsArray() || m_Objects.GetSize() != 6) @@ -416,36 +83,43 @@ CFX_Matrix CPDF_Array::GetMatrix() { GetNumberAt(4), GetNumberAt(5)); return matrix; } + CPDF_Object* CPDF_Array::GetElement(FX_DWORD i) const { if (i >= (FX_DWORD)m_Objects.GetSize()) return nullptr; return m_Objects.GetAt(i); } + CPDF_Object* CPDF_Array::GetElementValue(FX_DWORD i) const { if (i >= (FX_DWORD)m_Objects.GetSize()) return nullptr; return m_Objects.GetAt(i)->GetDirect(); } + CFX_ByteString CPDF_Array::GetStringAt(FX_DWORD i) const { if (i >= (FX_DWORD)m_Objects.GetSize()) return CFX_ByteString(); return m_Objects.GetAt(i)->GetString(); } + CFX_ByteStringC CPDF_Array::GetConstStringAt(FX_DWORD i) const { if (i >= (FX_DWORD)m_Objects.GetSize()) return CFX_ByteStringC(); return m_Objects.GetAt(i)->GetConstString(); } + int CPDF_Array::GetIntegerAt(FX_DWORD i) const { if (i >= (FX_DWORD)m_Objects.GetSize()) return 0; return m_Objects.GetAt(i)->GetInteger(); } + FX_FLOAT CPDF_Array::GetNumberAt(FX_DWORD i) const { if (i >= (FX_DWORD)m_Objects.GetSize()) return 0; return m_Objects.GetAt(i)->GetNumber(); } + CPDF_Dictionary* CPDF_Array::GetDictAt(FX_DWORD i) const { CPDF_Object* p = GetElementValue(i); if (!p) @@ -456,12 +130,15 @@ CPDF_Dictionary* CPDF_Array::GetDictAt(FX_DWORD i) const { return pStream->GetDict(); return NULL; } + CPDF_Stream* CPDF_Array::GetStreamAt(FX_DWORD i) const { return ToStream(GetElementValue(i)); } + CPDF_Array* CPDF_Array::GetArrayAt(FX_DWORD i) const { return ToArray(GetElementValue(i)); } + void CPDF_Array::RemoveAt(FX_DWORD i, int nCount) { if (i >= (FX_DWORD)m_Objects.GetSize()) return; @@ -475,6 +152,7 @@ void CPDF_Array::RemoveAt(FX_DWORD i, int nCount) { } m_Objects.RemoveAt(i, nCount); } + void CPDF_Array::SetAt(FX_DWORD i, CPDF_Object* pObj, CPDF_IndirectObjectHolder* pObjs) { @@ -490,6 +168,7 @@ void CPDF_Array::SetAt(FX_DWORD i, } m_Objects.SetAt(i, pObj); } + void CPDF_Array::InsertAt(FX_DWORD index, CPDF_Object* pObj, CPDF_IndirectObjectHolder* pObjs) { @@ -499,6 +178,7 @@ void CPDF_Array::InsertAt(FX_DWORD index, } m_Objects.InsertAt(index, pObj); } + void CPDF_Array::Add(CPDF_Object* pObj, CPDF_IndirectObjectHolder* pObjs) { if (pObj->GetObjNum()) { ASSERT(pObjs); @@ -506,44 +186,47 @@ void CPDF_Array::Add(CPDF_Object* pObj, CPDF_IndirectObjectHolder* pObjs) { } m_Objects.Add(pObj); } + void CPDF_Array::AddName(const CFX_ByteString& str) { ASSERT(IsArray()); Add(new CPDF_Name(str)); } + void CPDF_Array::AddString(const CFX_ByteString& str) { ASSERT(IsArray()); Add(new CPDF_String(str, FALSE)); } + void CPDF_Array::AddInteger(int i) { ASSERT(IsArray()); Add(new CPDF_Number(i)); } + void CPDF_Array::AddNumber(FX_FLOAT f) { ASSERT(IsArray()); - CPDF_Number* pNumber = new CPDF_Number; - pNumber->SetNumber(f); + CPDF_Number* pNumber = new CPDF_Number(f); Add(pNumber); } + void CPDF_Array::AddReference(CPDF_IndirectObjectHolder* pDoc, FX_DWORD objnum) { ASSERT(IsArray()); Add(new CPDF_Reference(pDoc, objnum)); } -FX_BOOL CPDF_Array::Identical(CPDF_Array* pOther) const { - if (m_Objects.GetSize() != pOther->m_Objects.GetSize()) { - return FALSE; - } - for (int i = 0; i < m_Objects.GetSize(); i++) { - if (!m_Objects[i]->IsIdentical(pOther->m_Objects[i])) - return FALSE; - } - return TRUE; -} + CPDF_Dictionary::~CPDF_Dictionary() { for (const auto& it : m_Map) { it.second->Release(); } } + +CPDF_Object* CPDF_Dictionary::Clone(FX_BOOL bDirect) const { + CPDF_Dictionary* pCopy = new CPDF_Dictionary(); + for (const auto& it : *this) + pCopy->m_Map.insert(std::make_pair(it.first, it.second->Clone(bDirect))); + return pCopy; +} + CPDF_Object* CPDF_Dictionary::GetElement(const CFX_ByteStringC& key) const { auto it = m_Map.find(key); if (it == m_Map.end()) @@ -555,6 +238,7 @@ CPDF_Object* CPDF_Dictionary::GetElementValue( CPDF_Object* p = GetElement(key); return p ? p->GetDirect() : nullptr; } + CFX_ByteString CPDF_Dictionary::GetStringBy(const CFX_ByteStringC& key) const { CPDF_Object* p = GetElement(key); if (p) { @@ -562,6 +246,7 @@ CFX_ByteString CPDF_Dictionary::GetStringBy(const CFX_ByteStringC& key) const { } return CFX_ByteString(); } + CFX_ByteStringC CPDF_Dictionary::GetConstStringBy( const CFX_ByteStringC& key) const { CPDF_Object* p = GetElement(key); @@ -570,6 +255,7 @@ CFX_ByteStringC CPDF_Dictionary::GetConstStringBy( } return CFX_ByteStringC(); } + CFX_WideString CPDF_Dictionary::GetUnicodeTextBy(const CFX_ByteStringC& key, CFX_CharMap* pCharMap) const { CPDF_Object* p = GetElement(key); @@ -577,6 +263,7 @@ CFX_WideString CPDF_Dictionary::GetUnicodeTextBy(const CFX_ByteStringC& key, p = pRef->GetDirect(); return p ? p->GetUnicodeText(pCharMap) : CFX_WideString(); } + CFX_ByteString CPDF_Dictionary::GetStringBy(const CFX_ByteStringC& key, const CFX_ByteStringC& def) const { CPDF_Object* p = GetElement(key); @@ -585,6 +272,7 @@ CFX_ByteString CPDF_Dictionary::GetStringBy(const CFX_ByteStringC& key, } return CFX_ByteString(def); } + CFX_ByteStringC CPDF_Dictionary::GetConstStringBy( const CFX_ByteStringC& key, const CFX_ByteStringC& def) const { @@ -594,6 +282,7 @@ CFX_ByteStringC CPDF_Dictionary::GetConstStringBy( } return CFX_ByteStringC(def); } + int CPDF_Dictionary::GetIntegerBy(const CFX_ByteStringC& key) const { CPDF_Object* p = GetElement(key); if (p) { @@ -601,6 +290,7 @@ int CPDF_Dictionary::GetIntegerBy(const CFX_ByteStringC& key) const { } return 0; } + int CPDF_Dictionary::GetIntegerBy(const CFX_ByteStringC& key, int def) const { CPDF_Object* p = GetElement(key); if (p) { @@ -608,6 +298,7 @@ int CPDF_Dictionary::GetIntegerBy(const CFX_ByteStringC& key, int def) const { } return def; } + FX_FLOAT CPDF_Dictionary::GetNumberBy(const CFX_ByteStringC& key) const { CPDF_Object* p = GetElement(key); if (p) { @@ -615,6 +306,7 @@ FX_FLOAT CPDF_Dictionary::GetNumberBy(const CFX_ByteStringC& key) const { } return 0; } + FX_BOOL CPDF_Dictionary::GetBooleanBy(const CFX_ByteStringC& key, FX_BOOL bDefault) const { CPDF_Object* p = GetElement(key); @@ -622,6 +314,7 @@ FX_BOOL CPDF_Dictionary::GetBooleanBy(const CFX_ByteStringC& key, return p->GetInteger(); return bDefault; } + CPDF_Dictionary* CPDF_Dictionary::GetDictBy(const CFX_ByteStringC& key) const { CPDF_Object* p = GetElementValue(key); if (!p) @@ -632,12 +325,15 @@ CPDF_Dictionary* CPDF_Dictionary::GetDictBy(const CFX_ByteStringC& key) const { return pStream->GetDict(); return nullptr; } + CPDF_Array* CPDF_Dictionary::GetArrayBy(const CFX_ByteStringC& key) const { return ToArray(GetElementValue(key)); } + CPDF_Stream* CPDF_Dictionary::GetStreamBy(const CFX_ByteStringC& key) const { return ToStream(GetElementValue(key)); } + CFX_FloatRect CPDF_Dictionary::GetRectBy(const CFX_ByteStringC& key) const { CFX_FloatRect rect; CPDF_Array* pArray = GetArrayBy(key); @@ -645,6 +341,7 @@ CFX_FloatRect CPDF_Dictionary::GetRectBy(const CFX_ByteStringC& key) const { rect = pArray->GetRect(); return rect; } + CFX_Matrix CPDF_Dictionary::GetMatrixBy(const CFX_ByteStringC& key) const { CFX_Matrix matrix; CPDF_Array* pArray = GetArrayBy(key); @@ -652,6 +349,7 @@ CFX_Matrix CPDF_Dictionary::GetMatrixBy(const CFX_ByteStringC& key) const { matrix = pArray->GetMatrix(); return matrix; } + FX_BOOL CPDF_Dictionary::KeyExist(const CFX_ByteStringC& key) const { return pdfium::ContainsKey(m_Map, key); } @@ -677,8 +375,8 @@ void CPDF_Dictionary::SetAt(const CFX_ByteStringC& key, CPDF_Object* pObj) { else m_Map.erase(it); } + void CPDF_Dictionary::RemoveAt(const CFX_ByteStringC& key) { - ASSERT(m_Type == DICTIONARY); auto it = m_Map.find(key); if (it == m_Map.end()) return; @@ -686,9 +384,9 @@ void CPDF_Dictionary::RemoveAt(const CFX_ByteStringC& key) { it->second->Release(); m_Map.erase(it); } + void CPDF_Dictionary::ReplaceKey(const CFX_ByteStringC& oldkey, const CFX_ByteStringC& newkey) { - ASSERT(m_Type == DICTIONARY); auto old_it = m_Map.find(oldkey); if (old_it == m_Map.end()) return; @@ -707,49 +405,42 @@ void CPDF_Dictionary::ReplaceKey(const CFX_ByteStringC& oldkey, } m_Map.erase(old_it); } -FX_BOOL CPDF_Dictionary::Identical(CPDF_Dictionary* pOther) const { - if (!pOther) { - return FALSE; - } - if (m_Map.size() != pOther->m_Map.size()) { - return FALSE; - } - for (const auto& it : m_Map) { - const CFX_ByteString& key = it.first; - if (!it.second->IsIdentical(pOther->GetElement(key))) - return FALSE; - } - return TRUE; -} + void CPDF_Dictionary::SetAtInteger(const CFX_ByteStringC& key, int i) { SetAt(key, new CPDF_Number(i)); } + void CPDF_Dictionary::SetAtName(const CFX_ByteStringC& key, const CFX_ByteString& name) { SetAt(key, new CPDF_Name(name)); } + void CPDF_Dictionary::SetAtString(const CFX_ByteStringC& key, const CFX_ByteString& str) { SetAt(key, new CPDF_String(str, FALSE)); } + void CPDF_Dictionary::SetAtReference(const CFX_ByteStringC& key, CPDF_IndirectObjectHolder* pDoc, FX_DWORD objnum) { SetAt(key, new CPDF_Reference(pDoc, objnum)); } + void CPDF_Dictionary::AddReference(const CFX_ByteStringC& key, CPDF_IndirectObjectHolder* pDoc, FX_DWORD objnum) { SetAt(key, new CPDF_Reference(pDoc, objnum)); } + void CPDF_Dictionary::SetAtNumber(const CFX_ByteStringC& key, FX_FLOAT f) { - CPDF_Number* pNumber = new CPDF_Number; - pNumber->SetNumber(f); + CPDF_Number* pNumber = new CPDF_Number(f); SetAt(key, pNumber); } + void CPDF_Dictionary::SetAtBoolean(const CFX_ByteStringC& key, FX_BOOL bValue) { SetAt(key, new CPDF_Boolean(bValue)); } + void CPDF_Dictionary::SetAtRect(const CFX_ByteStringC& key, const CFX_FloatRect& rect) { CPDF_Array* pArray = new CPDF_Array; @@ -759,6 +450,7 @@ void CPDF_Dictionary::SetAtRect(const CFX_ByteStringC& key, pArray->AddNumber(rect.top); SetAt(key, pArray); } + void CPDF_Dictionary::SetAtMatrix(const CFX_ByteStringC& key, const CFX_Matrix& matrix) { CPDF_Array* pArray = new CPDF_Array; @@ -770,9 +462,9 @@ void CPDF_Dictionary::SetAtMatrix(const CFX_ByteStringC& key, pArray->AddNumber(matrix.f); SetAt(key, pArray); } + CPDF_Stream::CPDF_Stream(uint8_t* pData, FX_DWORD size, CPDF_Dictionary* pDict) - : CPDF_Object(STREAM), - m_pDict(pDict), + : m_pDict(pDict), m_dwSize(size), m_GenNum(kMemoryBasedGenNum), m_pDataBuf(pData) {} @@ -812,6 +504,18 @@ void CPDF_Stream::InitStream(uint8_t* pData, m_pDict->SetAtInteger("Length", size); } } + +CPDF_Object* CPDF_Stream::Clone(FX_BOOL bDirect) const { + CPDF_StreamAcc acc; + acc.LoadAllData(this, TRUE); + FX_DWORD streamSize = acc.GetSize(); + CPDF_Dictionary* pDict = GetDict(); + if (pDict) { + pDict = ToDictionary(pDict->Clone(bDirect)); + } + return new CPDF_Stream(acc.DetachData(), streamSize, pDict); +} + void CPDF_Stream::SetData(const uint8_t* pData, FX_DWORD size, FX_BOOL bCompressed, @@ -821,7 +525,7 @@ void CPDF_Stream::SetData(const uint8_t* pData, m_GenNum = kMemoryBasedGenNum; if (bKeepBuf) { - m_pDataBuf = (uint8_t*)pData; + m_pDataBuf = const_cast<uint8_t*>(pData); } else { m_pDataBuf = FX_Alloc(uint8_t, size); if (pData) { @@ -837,6 +541,7 @@ void CPDF_Stream::SetData(const uint8_t* pData, m_pDict->RemoveAt("DecodeParms"); } } + FX_BOOL CPDF_Stream::ReadRawData(FX_FILESIZE offset, uint8_t* buf, FX_DWORD size) const { @@ -857,72 +562,10 @@ void CPDF_Stream::InitStreamFromFile(IFX_FileRead* pFile, } } -FX_BOOL CPDF_Stream::Identical(CPDF_Stream* pOther) const { - if (!m_pDict) - return !pOther->m_pDict; - - if (!m_pDict->Identical(pOther->m_pDict)) - return FALSE; - - if (m_dwSize != pOther->m_dwSize) - return FALSE; - - if (!IsMemoryBased() && !pOther->IsMemoryBased()) { - if (m_pFile == pOther->m_pFile && !m_pFile) - return TRUE; - - if (!m_pFile || !pOther->m_pFile) - return FALSE; - - uint8_t srcBuf[kBlockSize]; - uint8_t destBuf[kBlockSize]; - FX_DWORD size = m_dwSize; - if (m_pFile == pOther->m_pFile) - return TRUE; - - FX_DWORD offset = 0; - while (size > 0) { - FX_DWORD actualSize = std::min(size, kBlockSize); - m_pFile->ReadBlock(srcBuf, offset, actualSize); - pOther->m_pFile->ReadBlock(destBuf, offset, actualSize); - if (FXSYS_memcmp(srcBuf, destBuf, actualSize) != 0) - return FALSE; - - size -= actualSize; - offset += actualSize; - } - return TRUE; - } - - if (!IsMemoryBased() || !pOther->IsMemoryBased()) { - IFX_FileRead* pFile = nullptr; - uint8_t* pBuf = nullptr; - if (!pOther->IsMemoryBased()) { - pFile = pOther->m_pFile; - pBuf = m_pDataBuf; - } else if (!IsMemoryBased()) { - pFile = m_pFile; - pBuf = pOther->m_pDataBuf; - } - if (!pBuf) - return FALSE; - - uint8_t srcBuf[kBlockSize]; - FX_DWORD size = m_dwSize; - FX_DWORD offset = 0; - while (size > 0) { - FX_DWORD actualSize = std::min(size, kBlockSize); - pFile->ReadBlock(srcBuf, offset, actualSize); - if (FXSYS_memcmp(srcBuf, pBuf, actualSize) != 0) - return FALSE; - - pBuf += actualSize; - size -= actualSize; - offset += actualSize; - } - return TRUE; - } - return FXSYS_memcmp(m_pDataBuf, pOther->m_pDataBuf, m_dwSize) == 0; +CFX_WideString CPDF_Stream::GetUnicodeText(CFX_CharMap* pCharMap) const { + CPDF_StreamAcc stream; + stream.LoadAllData(this, FALSE); + return PDF_DecodeText(stream.GetData(), stream.GetSize(), pCharMap); } CPDF_StreamAcc::CPDF_StreamAcc() { @@ -943,12 +586,12 @@ void CPDF_StreamAcc::LoadAllData(const CPDF_Stream* pStream, m_pStream = pStream; if (pStream->IsMemoryBased() && (!pStream->GetDict()->KeyExist("Filter") || bRawAccess)) { - m_dwSize = pStream->m_dwSize; - m_pData = (uint8_t*)pStream->m_pDataBuf; + m_dwSize = pStream->GetRawSize(); + m_pData = pStream->GetRawData(); return; } uint8_t* pSrcData; - FX_DWORD dwSrcSize = pStream->m_dwSize; + FX_DWORD dwSrcSize = pStream->GetRawSize(); if (dwSrcSize == 0) return; @@ -957,7 +600,7 @@ void CPDF_StreamAcc::LoadAllData(const CPDF_Stream* pStream, if (!pStream->ReadRawData(0, pSrcData, dwSrcSize)) return; } else { - pSrcData = pStream->m_pDataBuf; + pSrcData = pStream->GetRawData(); } uint8_t* pDecryptedData = pSrcData; FX_DWORD dwDecryptedSize = dwSrcSize; @@ -973,21 +616,23 @@ void CPDF_StreamAcc::LoadAllData(const CPDF_Stream* pStream, m_dwSize = dwDecryptedSize; } } - if (pSrcData != pStream->m_pDataBuf && pSrcData != m_pData) { + if (pSrcData != pStream->GetRawData() && pSrcData != m_pData) { FX_Free(pSrcData); } if (pDecryptedData != pSrcData && pDecryptedData != m_pData) { FX_Free(pDecryptedData); } m_pSrcData = NULL; - m_bNewBuf = m_pData != pStream->m_pDataBuf; + m_bNewBuf = m_pData != pStream->GetRawData(); } + CPDF_StreamAcc::~CPDF_StreamAcc() { if (m_bNewBuf) { FX_Free(m_pData); } FX_Free(m_pSrcData); } + const uint8_t* CPDF_StreamAcc::GetData() const { if (m_bNewBuf) { return m_pData; @@ -995,8 +640,9 @@ const uint8_t* CPDF_StreamAcc::GetData() const { if (!m_pStream) { return NULL; } - return m_pStream->m_pDataBuf; + return m_pStream->GetRawData(); } + FX_DWORD CPDF_StreamAcc::GetSize() const { if (m_bNewBuf) { return m_dwSize; @@ -1004,8 +650,9 @@ FX_DWORD CPDF_StreamAcc::GetSize() const { if (!m_pStream) { return 0; } - return m_pStream->m_dwSize; + return m_pStream->GetRawSize(); } + uint8_t* CPDF_StreamAcc::DetachData() { if (m_bNewBuf) { uint8_t* p = m_pData; @@ -1017,20 +664,36 @@ uint8_t* CPDF_StreamAcc::DetachData() { FXSYS_memcpy(p, m_pData, m_dwSize); return p; } + +CPDF_Object* CPDF_Reference::Clone(FX_BOOL bDirect) const { + if (bDirect) { + auto* pDirect = GetDirect(); + return pDirect ? pDirect->Clone(TRUE) : nullptr; + } + return new CPDF_Reference(m_pObjList, m_RefObjNum); +} + void CPDF_Reference::SetRef(CPDF_IndirectObjectHolder* pDoc, FX_DWORD objnum) { m_pObjList = pDoc; m_RefObjNum = objnum; } + +CPDF_Object* CPDF_Reference::GetDirect() const { + return m_pObjList ? m_pObjList->GetIndirectObject(m_RefObjNum) : nullptr; +} + CPDF_IndirectObjectHolder::CPDF_IndirectObjectHolder(CPDF_Parser* pParser) : m_pParser(pParser), m_LastObjNum(0) { if (pParser) m_LastObjNum = m_pParser->GetLastObjNum(); } + CPDF_IndirectObjectHolder::~CPDF_IndirectObjectHolder() { for (const auto& pair : m_IndirectObjs) { pair.second->Destroy(); } } + CPDF_Object* CPDF_IndirectObjectHolder::GetIndirectObject(FX_DWORD objnum) { if (objnum == 0) return nullptr; @@ -1054,6 +717,7 @@ CPDF_Object* CPDF_IndirectObjectHolder::GetIndirectObject(FX_DWORD objnum) { m_IndirectObjs[objnum] = pObj; return pObj; } + FX_DWORD CPDF_IndirectObjectHolder::AddIndirectObject(CPDF_Object* pObj) { if (pObj->m_ObjNum) { return pObj->m_ObjNum; @@ -1063,6 +727,7 @@ FX_DWORD CPDF_IndirectObjectHolder::AddIndirectObject(CPDF_Object* pObj) { pObj->m_ObjNum = m_LastObjNum; return m_LastObjNum; } + void CPDF_IndirectObjectHolder::ReleaseIndirectObject(FX_DWORD objnum) { auto it = m_IndirectObjs.find(objnum); if (it == m_IndirectObjs.end() || it->second->GetObjNum() == -1) @@ -1070,6 +735,7 @@ void CPDF_IndirectObjectHolder::ReleaseIndirectObject(FX_DWORD objnum) { it->second->Destroy(); m_IndirectObjs.erase(it); } + FX_BOOL CPDF_IndirectObjectHolder::InsertIndirectObject(FX_DWORD objnum, CPDF_Object* pObj) { if (!objnum || !pObj) |