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-rw-r--r--core/include/fpdfapi/fpdf_objects.h35
-rw-r--r--core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp135
2 files changed, 59 insertions, 111 deletions
diff --git a/core/include/fpdfapi/fpdf_objects.h b/core/include/fpdfapi/fpdf_objects.h
index 92ce0b922f..fdf11720f4 100644
--- a/core/include/fpdfapi/fpdf_objects.h
+++ b/core/include/fpdfapi/fpdf_objects.h
@@ -45,44 +45,31 @@ struct PARSE_CONTEXT;
class CPDF_Object {
public:
int GetType() const { return m_Type; }
-
FX_DWORD GetObjNum() const { return m_ObjNum; }
-
FX_DWORD GetGenNum() const { return m_GenNum; }
FX_BOOL IsIdentical(CPDF_Object* pObj) const;
-
CPDF_Object* Clone(FX_BOOL bDirect = FALSE) const;
-
CPDF_Object* CloneRef(CPDF_IndirectObjectHolder* pObjs) const;
CPDF_Object* GetDirect() const;
+ int GetDirectType() const;
+ FX_BOOL IsModified() const { return FALSE; }
void Release();
CFX_ByteString GetString() const;
-
CFX_ByteStringC GetConstString() const;
-
CFX_WideString GetUnicodeText(CFX_CharMap* pCharMap = NULL) const;
FX_FLOAT GetNumber() const;
-
FX_FLOAT GetNumber16() const;
-
int GetInteger() const;
-
CPDF_Dictionary* GetDict() const;
-
CPDF_Array* GetArray() const;
void SetString(const CFX_ByteString& str);
-
void SetUnicodeText(const FX_WCHAR* pUnicodes, int len = -1);
- int GetDirectType() const;
-
- FX_BOOL IsModified() const { return FALSE; }
-
bool IsArray() const { return m_Type == PDFOBJ_ARRAY; }
bool IsBoolean() const { return m_Type == PDFOBJ_BOOLEAN; }
bool IsDictionary() const { return m_Type == PDFOBJ_DICTIONARY; }
@@ -94,25 +81,18 @@ class CPDF_Object {
CPDF_Array* AsArray();
const CPDF_Array* AsArray() const;
-
CPDF_Boolean* AsBoolean();
const CPDF_Boolean* AsBoolean() const;
-
CPDF_Dictionary* AsDictionary();
const CPDF_Dictionary* AsDictionary() const;
-
CPDF_Name* AsName();
const CPDF_Name* AsName() const;
-
CPDF_Number* AsNumber();
const CPDF_Number* AsNumber() const;
-
CPDF_Reference* AsReference();
const CPDF_Reference* AsReference() const;
-
CPDF_Stream* AsStream();
const CPDF_Stream* AsStream() const;
-
CPDF_String* AsString();
const CPDF_String* AsString() const;
@@ -122,8 +102,8 @@ class CPDF_Object {
~CPDF_Object() {}
void Destroy();
- static const int kObjectRefMaxDepth = 128;
- static int s_nCurRefDepth;
+ const CPDF_Object* const GetBasicObject() const;
+
FX_DWORD m_Type;
FX_DWORD m_ObjNum;
FX_DWORD m_GenNum;
@@ -147,6 +127,9 @@ class CPDF_Boolean : public CPDF_Object {
return m_bValue == pOther->m_bValue;
}
+ CFX_ByteString GetString() const { return m_bValue ? "true" : "false"; }
+ FX_BOOL GetValue() const { return m_bValue; }
+
protected:
FX_BOOL m_bValue;
friend class CPDF_Object;
@@ -216,7 +199,7 @@ class CPDF_String : public CPDF_Object {
explicit CPDF_String(const CFX_WideString& str);
- CFX_ByteString& GetString() { return m_String; }
+ CFX_ByteString GetString() const { return m_String; }
FX_BOOL Identical(CPDF_String* pOther) const {
return m_String == pOther->m_String;
@@ -246,7 +229,7 @@ class CPDF_Name : public CPDF_Object {
explicit CPDF_Name(const FX_CHAR* str)
: CPDF_Object(PDFOBJ_NAME), m_Name(str) {}
- CFX_ByteString& GetString() { return m_Name; }
+ CFX_ByteString GetString() const { return m_Name; }
FX_BOOL Identical(CPDF_Name* pOther) const {
return m_Name == pOther->m_Name;
diff --git a/core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp b/core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp
index cad8d7701d..a3b0568931 100644
--- a/core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp
+++ b/core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp
@@ -18,9 +18,6 @@ const FX_DWORD kBlockSize = 1024;
} // namespace
-// static
-int CPDF_Object::s_nCurRefDepth = 0;
-
void CPDF_Object::Release() {
if (m_ObjNum) {
return;
@@ -48,65 +45,55 @@ void CPDF_Object::Destroy() {
delete this;
}
}
-CFX_ByteString CPDF_Object::GetString() const {
- switch (m_Type) {
- case PDFOBJ_BOOLEAN:
- return AsBoolean()->m_bValue ? "true" : "false";
- case PDFOBJ_NUMBER:
- return AsNumber()->GetString();
- case PDFOBJ_STRING:
- return AsString()->m_String;
- case PDFOBJ_NAME:
- return AsName()->m_Name;
- case PDFOBJ_REFERENCE: {
- const CPDF_Reference* pRef = AsReference();
- if (!pRef->m_pObjList)
- break;
- CPDF_Object* pObj =
- pRef->m_pObjList->GetIndirectObject(pRef->GetRefObjNum(), nullptr);
- return pObj ? pObj->GetString() : CFX_ByteString();
+const CPDF_Object* const 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(), nullptr);
+}
+
+CFX_ByteString CPDF_Object::GetString() const {
+ const CPDF_Object* obj = GetBasicObject();
+ if (obj) {
+ switch (obj->GetType()) {
+ case PDFOBJ_BOOLEAN:
+ return obj->AsBoolean()->GetString();
+ case PDFOBJ_NUMBER:
+ return obj->AsNumber()->GetString();
+ case PDFOBJ_STRING:
+ return obj->AsString()->GetString();
+ case PDFOBJ_NAME:
+ return obj->AsName()->GetString();
}
}
return CFX_ByteString();
}
+
CFX_ByteStringC CPDF_Object::GetConstString() const {
- switch (m_Type) {
- case PDFOBJ_STRING: {
- CFX_ByteString str = AsString()->m_String;
- return CFX_ByteStringC((const uint8_t*)str, str.GetLength());
- }
- case PDFOBJ_NAME: {
- CFX_ByteString name = AsName()->m_Name;
- return CFX_ByteStringC((const uint8_t*)name, name.GetLength());
+ const CPDF_Object* obj = GetBasicObject();
+ if (obj) {
+ FX_DWORD type = obj->GetType();
+ if (type == PDFOBJ_STRING) {
+ CFX_ByteString str = obj->AsString()->GetString();
+ return CFX_ByteStringC(str);
}
- case PDFOBJ_REFERENCE: {
- const CPDF_Reference* pRef = AsReference();
- if (!pRef->m_pObjList)
- break;
-
- CPDF_Object* pObj =
- pRef->m_pObjList->GetIndirectObject(pRef->GetRefObjNum(), nullptr);
- return pObj ? pObj->GetConstString() : CFX_ByteStringC();
+ if (type == PDFOBJ_NAME) {
+ CFX_ByteString name = obj->AsName()->GetString();
+ return CFX_ByteStringC(name);
}
}
return CFX_ByteStringC();
}
FX_FLOAT CPDF_Object::GetNumber() const {
- switch (m_Type) {
- case PDFOBJ_NUMBER:
- return AsNumber()->GetNumber();
- case PDFOBJ_REFERENCE: {
- const CPDF_Reference* pRef = AsReference();
- if (!pRef->m_pObjList)
- break;
-
- CPDF_Object* pObj =
- pRef->m_pObjList->GetIndirectObject(pRef->GetRefObjNum(), nullptr);
- return pObj ? pObj->GetNumber() : 0;
- }
- }
+ const CPDF_Object* obj = GetBasicObject();
+ if (obj && obj->GetType() == PDFOBJ_NUMBER)
+ return AsNumber()->GetNumber();
return 0;
}
@@ -115,52 +102,30 @@ FX_FLOAT CPDF_Object::GetNumber16() const {
}
int CPDF_Object::GetInteger() const {
- CFX_AutoRestorer<int> restorer(&s_nCurRefDepth);
- if (++s_nCurRefDepth > kObjectRefMaxDepth)
- return 0;
-
- switch (m_Type) {
- case PDFOBJ_BOOLEAN:
- return AsBoolean()->m_bValue;
- case PDFOBJ_NUMBER:
- return AsNumber()->GetInteger();
- case PDFOBJ_REFERENCE: {
- const CPDF_Reference* pRef = AsReference();
- PARSE_CONTEXT context;
- FXSYS_memset(&context, 0, sizeof(PARSE_CONTEXT));
- if (!pRef->m_pObjList)
- return 0;
-
- CPDF_Object* pObj =
- pRef->m_pObjList->GetIndirectObject(pRef->GetRefObjNum(), &context);
- return pObj ? pObj->GetInteger() : 0;
- }
+ const CPDF_Object* obj = GetBasicObject();
+ if (obj) {
+ FX_DWORD type = obj->GetType();
+ if (type == PDFOBJ_BOOLEAN)
+ return obj->AsBoolean()->GetValue();
+ if (type == PDFOBJ_NUMBER)
+ return obj->AsNumber()->GetInteger();
}
return 0;
}
CPDF_Dictionary* CPDF_Object::GetDict() const {
- switch (m_Type) {
- case PDFOBJ_DICTIONARY:
+ const CPDF_Object* obj = GetBasicObject();
+ if (obj) {
+ FX_DWORD type = obj->GetType();
+ if (type == PDFOBJ_DICTIONARY) {
// The method should be made non-const if we want to not be const.
// See bug #234.
return const_cast<CPDF_Dictionary*>(AsDictionary());
- case PDFOBJ_STREAM:
- return AsStream()->GetDict();
- case PDFOBJ_REFERENCE: {
- const CPDF_Reference* pRef = AsReference();
- CPDF_IndirectObjectHolder* pIndirect = pRef->GetObjList();
- if (!pIndirect)
- return nullptr;
- CPDF_Object* pObj =
- pIndirect->GetIndirectObject(pRef->GetRefObjNum(), nullptr);
- if (!pObj || (pObj == this))
- return nullptr;
- return pObj->GetDict();
}
- default:
- return nullptr;
+ if (type == PDFOBJ_STREAM)
+ return AsStream()->GetDict();
}
+ return nullptr;
}
CPDF_Array* CPDF_Object::GetArray() const {
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 08:11:56 +0000