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-rw-r--r--core/include/fpdfapi/fpdf_objects.h50
-rw-r--r--core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp7
2 files changed, 32 insertions, 25 deletions
diff --git a/core/include/fpdfapi/fpdf_objects.h b/core/include/fpdfapi/fpdf_objects.h
index 0315465367..b3980a4f0f 100644
--- a/core/include/fpdfapi/fpdf_objects.h
+++ b/core/include/fpdfapi/fpdf_objects.h
@@ -39,12 +39,12 @@ class CPDF_Object
{
public:
- int GetType() const
+ int GetType() const
{
return m_Type;
}
- FX_DWORD GetObjNum() const
+ FX_DWORD GetObjNum() const
{
return m_ObjNum;
}
@@ -54,51 +54,51 @@ public:
return m_GenNum;
}
- FX_BOOL IsIdentical(CPDF_Object* pObj) const;
+ FX_BOOL IsIdentical(CPDF_Object* pObj) const;
- CPDF_Object* Clone(FX_BOOL bDirect = FALSE) const;
+ CPDF_Object* Clone(FX_BOOL bDirect = FALSE) const;
- CPDF_Object* CloneRef(CPDF_IndirectObjects* pObjs) const;
+ CPDF_Object* CloneRef(CPDF_IndirectObjects* pObjs) const;
- CPDF_Object* GetDirect() const;
+ CPDF_Object* GetDirect() const;
- void Release();
+ void Release();
- CFX_ByteString GetString() const;
-
- CFX_ByteStringC GetConstString() const;
+ CFX_ByteString GetString() const;
- CFX_WideString GetUnicodeText(CFX_CharMap* pCharMap = NULL) const;
+ CFX_ByteStringC GetConstString() const;
- FX_FLOAT GetNumber() const;
+ CFX_WideString GetUnicodeText(CFX_CharMap* pCharMap = NULL) const;
+ FX_FLOAT GetNumber() const;
- FX_FLOAT GetNumber16() const;
+ FX_FLOAT GetNumber16() const;
- int GetInteger() const;
+ int GetInteger() const;
- CPDF_Dictionary* GetDict() const;
+ CPDF_Dictionary* GetDict() const;
- CPDF_Array* GetArray() const;
+ CPDF_Array* GetArray() const;
- void SetString(const CFX_ByteString& str);
+ void SetString(const CFX_ByteString& str);
- void SetUnicodeText(FX_LPCWSTR pUnicodes, int len = -1);
+ void SetUnicodeText(FX_LPCWSTR pUnicodes, int len = -1);
- int GetDirectType() const;
+ int GetDirectType() const;
- FX_BOOL IsModified() const
+ FX_BOOL IsModified() const
{
return FALSE;
}
protected:
CPDF_Object(FX_DWORD type) : m_Type(type), m_ObjNum(0), m_GenNum(0) { }
~CPDF_Object() { }
+ void Destroy();
- void Destroy();
-
- FX_DWORD m_Type;
- FX_DWORD m_ObjNum;
- FX_DWORD m_GenNum;
+ static const int OBJECT_REF_MAX_DEPTH = 128;
+ static int s_nCurRefDepth;
+ FX_DWORD m_Type;
+ FX_DWORD m_ObjNum;
+ FX_DWORD m_GenNum;
friend class CPDF_IndirectObjects;
friend class CPDF_Parser;
diff --git a/core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp b/core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp
index db3d382a1f..912af297f5 100644
--- a/core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp
+++ b/core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp
@@ -7,6 +7,9 @@
#include "../../../include/fpdfapi/fpdf_parser.h"
#include "../../../include/fxcrt/fx_string.h"
+//static
+int CPDF_Object::s_nCurRefDepth = 0;
+
void CPDF_Object::Release()
{
if (m_ObjNum) {
@@ -107,6 +110,10 @@ FX_FLOAT CPDF_Object::GetNumber16() const
}
int CPDF_Object::GetInteger() const
{
+ CFX_AutoRestorer<int> restorer(&s_nCurRefDepth);
+ if (++s_nCurRefDepth > OBJECT_REF_MAX_DEPTH) {
+ return 0;
+ }
switch (m_Type) {
case PDFOBJ_BOOLEAN:
return ((CPDF_Boolean*)this)->m_bValue;