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-rw-r--r--core/fpdfapi/page/cpdf_colorspace.cpp84
-rw-r--r--core/fpdfapi/page/cpdf_colorspace.h9
-rw-r--r--core/fpdfapi/page/cpdf_docpagedata.cpp21
-rw-r--r--core/fpdfapi/page/cpdf_docpagedata.h8
-rw-r--r--core/fpdfapi/page/cpdf_patterncs.cpp6
-rw-r--r--core/fpdfapi/page/cpdf_patterncs.h6
6 files changed, 94 insertions, 40 deletions
diff --git a/core/fpdfapi/page/cpdf_colorspace.cpp b/core/fpdfapi/page/cpdf_colorspace.cpp
index 0769687f34..aee7316bdf 100644
--- a/core/fpdfapi/page/cpdf_colorspace.cpp
+++ b/core/fpdfapi/page/cpdf_colorspace.cpp
@@ -75,7 +75,9 @@ class CPDF_CalGray : public CPDF_ColorSpace {
~CPDF_CalGray() override {}
// CPDF_ColorSpace:
- bool v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override;
+ bool v_Load(CPDF_Document* pDoc,
+ CPDF_Array* pArray,
+ std::set<CPDF_Object*>* pVisited) override;
bool GetRGB(float* pBuf, float* R, float* G, float* B) const override;
void TranslateImageLine(uint8_t* pDestBuf,
const uint8_t* pSrcBuf,
@@ -95,7 +97,9 @@ class CPDF_CalRGB : public CPDF_ColorSpace {
explicit CPDF_CalRGB(CPDF_Document* pDoc);
~CPDF_CalRGB() override {}
- bool v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override;
+ bool v_Load(CPDF_Document* pDoc,
+ CPDF_Array* pArray,
+ std::set<CPDF_Object*>* pVisited) override;
bool GetRGB(float* pBuf, float* R, float* G, float* B) const override;
@@ -119,7 +123,9 @@ class CPDF_LabCS : public CPDF_ColorSpace {
explicit CPDF_LabCS(CPDF_Document* pDoc);
~CPDF_LabCS() override {}
- bool v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override;
+ bool v_Load(CPDF_Document* pDoc,
+ CPDF_Array* pArray,
+ std::set<CPDF_Object*>* pVisited) override;
void GetDefaultValue(int iComponent,
float* value,
@@ -145,7 +151,9 @@ class CPDF_ICCBasedCS : public CPDF_ColorSpace {
~CPDF_ICCBasedCS() override;
// CPDF_ColorSpace:
- bool v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override;
+ bool v_Load(CPDF_Document* pDoc,
+ CPDF_Array* pArray,
+ std::set<CPDF_Object*>* pVisited) override;
bool GetRGB(float* pBuf, float* R, float* G, float* B) const override;
void EnableStdConversion(bool bEnabled) override;
void TranslateImageLine(uint8_t* pDestBuf,
@@ -159,7 +167,9 @@ class CPDF_ICCBasedCS : public CPDF_ColorSpace {
private:
// If no valid ICC profile or using sRGB, try looking for an alternate.
- bool FindAlternateProfile(CPDF_Document* pDoc, CPDF_Dictionary* pDict);
+ bool FindAlternateProfile(CPDF_Document* pDoc,
+ CPDF_Dictionary* pDict,
+ std::set<CPDF_Object*>* pVisited);
void UseStockAlternateProfile();
bool IsValidComponents(int32_t nComps) const;
@@ -176,7 +186,9 @@ class CPDF_IndexedCS : public CPDF_ColorSpace {
explicit CPDF_IndexedCS(CPDF_Document* pDoc);
~CPDF_IndexedCS() override;
- bool v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override;
+ bool v_Load(CPDF_Document* pDoc,
+ CPDF_Array* pArray,
+ std::set<CPDF_Object*>* pVisited) override;
bool GetRGB(float* pBuf, float* R, float* G, float* B) const override;
@@ -200,7 +212,9 @@ class CPDF_SeparationCS : public CPDF_ColorSpace {
float* value,
float* min,
float* max) const override;
- bool v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override;
+ bool v_Load(CPDF_Document* pDoc,
+ CPDF_Array* pArray,
+ std::set<CPDF_Object*>* pVisited) override;
bool GetRGB(float* pBuf, float* R, float* G, float* B) const override;
void EnableStdConversion(bool bEnabled) override;
@@ -219,7 +233,9 @@ class CPDF_DeviceNCS : public CPDF_ColorSpace {
float* value,
float* min,
float* max) const override;
- bool v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override;
+ bool v_Load(CPDF_Document* pDoc,
+ CPDF_Array* pArray,
+ std::set<CPDF_Object*>* pVisited) override;
bool GetRGB(float* pBuf, float* R, float* G, float* B) const override;
void EnableStdConversion(bool bEnabled) override;
@@ -367,6 +383,14 @@ CPDF_ColorSpace* CPDF_ColorSpace::GetStockCS(int family) {
std::unique_ptr<CPDF_ColorSpace> CPDF_ColorSpace::Load(CPDF_Document* pDoc,
CPDF_Object* pObj) {
+ std::set<CPDF_Object*> visited;
+ return Load(pDoc, pObj, &visited);
+}
+
+std::unique_ptr<CPDF_ColorSpace> CPDF_ColorSpace::Load(
+ CPDF_Document* pDoc,
+ CPDF_Object* pObj,
+ std::set<CPDF_Object*>* pVisited) {
if (!pObj)
return nullptr;
@@ -433,7 +457,7 @@ std::unique_ptr<CPDF_ColorSpace> CPDF_ColorSpace::Load(CPDF_Document* pDoc,
return nullptr;
}
pCS->m_pArray = pArray;
- if (!pCS->v_Load(pDoc, pArray))
+ if (!pCS->v_Load(pDoc, pArray, pVisited))
return nullptr;
return pCS;
@@ -525,14 +549,18 @@ CPDF_ColorSpace::CPDF_ColorSpace(CPDF_Document* pDoc,
CPDF_ColorSpace::~CPDF_ColorSpace() {}
-bool CPDF_ColorSpace::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
+bool CPDF_ColorSpace::v_Load(CPDF_Document* pDoc,
+ CPDF_Array* pArray,
+ std::set<CPDF_Object*>* pVisited) {
return true;
}
CPDF_CalGray::CPDF_CalGray(CPDF_Document* pDoc)
: CPDF_ColorSpace(pDoc, PDFCS_CALGRAY, 1) {}
-bool CPDF_CalGray::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
+bool CPDF_CalGray::v_Load(CPDF_Document* pDoc,
+ CPDF_Array* pArray,
+ std::set<CPDF_Object*>* pVisited) {
CPDF_Dictionary* pDict = pArray->GetDictAt(1);
if (!pDict)
return false;
@@ -575,7 +603,9 @@ void CPDF_CalGray::TranslateImageLine(uint8_t* pDestBuf,
CPDF_CalRGB::CPDF_CalRGB(CPDF_Document* pDoc)
: CPDF_ColorSpace(pDoc, PDFCS_CALRGB, 3) {}
-bool CPDF_CalRGB::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
+bool CPDF_CalRGB::v_Load(CPDF_Document* pDoc,
+ CPDF_Array* pArray,
+ std::set<CPDF_Object*>* pVisited) {
CPDF_Dictionary* pDict = pArray->GetDictAt(1);
if (!pDict)
return false;
@@ -682,7 +712,9 @@ void CPDF_LabCS::GetDefaultValue(int iComponent,
*value = pdfium::clamp(0.0f, *min, *max);
}
-bool CPDF_LabCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
+bool CPDF_LabCS::v_Load(CPDF_Document* pDoc,
+ CPDF_Array* pArray,
+ std::set<CPDF_Object*>* pVisited) {
CPDF_Dictionary* pDict = pArray->GetDictAt(1);
if (!pDict)
return false;
@@ -774,7 +806,9 @@ CPDF_ICCBasedCS::~CPDF_ICCBasedCS() {
}
}
-bool CPDF_ICCBasedCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
+bool CPDF_ICCBasedCS::v_Load(CPDF_Document* pDoc,
+ CPDF_Array* pArray,
+ std::set<CPDF_Object*>* pVisited) {
CPDF_Stream* pStream = pArray->GetStreamAt(1);
if (!pStream)
return false;
@@ -802,7 +836,8 @@ bool CPDF_ICCBasedCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
// If PDFium does not understand the ICC profile format at all, or if it's
// SRGB, a profile PDFium recognizes but does not support well, then try the
// alternate profile.
- if (!m_pProfile->IsSupported() && !FindAlternateProfile(pDoc, pDict)) {
+ if (!m_pProfile->IsSupported() &&
+ !FindAlternateProfile(pDoc, pDict, pVisited)) {
// If there is no alternate profile, use a stock profile as mentioned in
// the PDF 1.7 spec in table 4.16 in the "Alternate" key description.
UseStockAlternateProfile();
@@ -899,12 +934,13 @@ void CPDF_ICCBasedCS::TranslateImageLine(uint8_t* pDestBuf,
}
bool CPDF_ICCBasedCS::FindAlternateProfile(CPDF_Document* pDoc,
- CPDF_Dictionary* pDict) {
+ CPDF_Dictionary* pDict,
+ std::set<CPDF_Object*>* pVisited) {
CPDF_Object* pAlterCSObj = pDict->GetDirectObjectFor("Alternate");
if (!pAlterCSObj)
return false;
- auto pAlterCS = CPDF_ColorSpace::Load(pDoc, pAlterCSObj);
+ auto pAlterCS = CPDF_ColorSpace::Load(pDoc, pAlterCSObj, pVisited);
if (!pAlterCS)
return false;
@@ -958,7 +994,9 @@ CPDF_IndexedCS::~CPDF_IndexedCS() {
}
}
-bool CPDF_IndexedCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
+bool CPDF_IndexedCS::v_Load(CPDF_Document* pDoc,
+ CPDF_Array* pArray,
+ std::set<CPDF_Object*>* pVisited) {
if (pArray->GetCount() < 4)
return false;
@@ -967,7 +1005,7 @@ bool CPDF_IndexedCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
return false;
CPDF_DocPageData* pDocPageData = pDoc->GetPageData();
- m_pBaseCS = pDocPageData->GetColorSpace(pBaseObj, nullptr);
+ m_pBaseCS = pDocPageData->GetColorSpaceGuarded(pBaseObj, nullptr, pVisited);
if (!m_pBaseCS)
return false;
@@ -1039,7 +1077,9 @@ void CPDF_SeparationCS::GetDefaultValue(int iComponent,
*max = 1.0f;
}
-bool CPDF_SeparationCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
+bool CPDF_SeparationCS::v_Load(CPDF_Document* pDoc,
+ CPDF_Array* pArray,
+ std::set<CPDF_Object*>* pVisited) {
CFX_ByteString name = pArray->GetStringAt(1);
if (name == "None") {
m_Type = None;
@@ -1117,7 +1157,9 @@ void CPDF_DeviceNCS::GetDefaultValue(int iComponent,
*max = 1.0f;
}
-bool CPDF_DeviceNCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
+bool CPDF_DeviceNCS::v_Load(CPDF_Document* pDoc,
+ CPDF_Array* pArray,
+ std::set<CPDF_Object*>* pVisited) {
CPDF_Array* pObj = ToArray(pArray->GetDirectObjectAt(1));
if (!pObj)
return false;
diff --git a/core/fpdfapi/page/cpdf_colorspace.h b/core/fpdfapi/page/cpdf_colorspace.h
index a518689ded..31dd32629b 100644
--- a/core/fpdfapi/page/cpdf_colorspace.h
+++ b/core/fpdfapi/page/cpdf_colorspace.h
@@ -8,6 +8,7 @@
#define CORE_FPDFAPI_PAGE_CPDF_COLORSPACE_H_
#include <memory>
+#include <set>
#include "core/fpdfapi/page/cpdf_pattern.h"
#include "core/fxcrt/cfx_unowned_ptr.h"
@@ -44,6 +45,10 @@ class CPDF_ColorSpace {
static CPDF_ColorSpace* ColorspaceFromName(const CFX_ByteString& name);
static std::unique_ptr<CPDF_ColorSpace> Load(CPDF_Document* pDoc,
CPDF_Object* pCSObj);
+ static std::unique_ptr<CPDF_ColorSpace> Load(
+ CPDF_Document* pDoc,
+ CPDF_Object* pCSObj,
+ std::set<CPDF_Object*>* pVisited);
void Release();
@@ -74,7 +79,9 @@ class CPDF_ColorSpace {
CPDF_ColorSpace(CPDF_Document* pDoc, int family, uint32_t nComponents);
virtual ~CPDF_ColorSpace();
- virtual bool v_Load(CPDF_Document* pDoc, CPDF_Array* pArray);
+ virtual bool v_Load(CPDF_Document* pDoc,
+ CPDF_Array* pArray,
+ std::set<CPDF_Object*>* pVisited);
CFX_UnownedPtr<CPDF_Document> const m_pDocument;
int m_Family;
diff --git a/core/fpdfapi/page/cpdf_docpagedata.cpp b/core/fpdfapi/page/cpdf_docpagedata.cpp
index 71143d0b6c..1af9d6ee22 100644
--- a/core/fpdfapi/page/cpdf_docpagedata.cpp
+++ b/core/fpdfapi/page/cpdf_docpagedata.cpp
@@ -212,10 +212,10 @@ CPDF_ColorSpace* CPDF_DocPageData::GetColorSpace(
CPDF_Object* pCSObj,
const CPDF_Dictionary* pResources) {
std::set<CPDF_Object*> visited;
- return GetColorSpaceImpl(pCSObj, pResources, &visited);
+ return GetColorSpaceGuarded(pCSObj, pResources, &visited);
}
-CPDF_ColorSpace* CPDF_DocPageData::GetColorSpaceImpl(
+CPDF_ColorSpace* CPDF_DocPageData::GetColorSpaceGuarded(
CPDF_Object* pCSObj,
const CPDF_Dictionary* pResources,
std::set<CPDF_Object*>* pVisited) {
@@ -225,15 +225,16 @@ CPDF_ColorSpace* CPDF_DocPageData::GetColorSpaceImpl(
if (pdfium::ContainsKey(*pVisited, pCSObj))
return nullptr;
+ pdfium::ScopedSetInsertion<CPDF_Object*> insertion(pVisited, pCSObj);
+
if (pCSObj->IsName()) {
CFX_ByteString name = pCSObj->GetString();
CPDF_ColorSpace* pCS = CPDF_ColorSpace::ColorspaceFromName(name);
if (!pCS && pResources) {
CPDF_Dictionary* pList = pResources->GetDictFor("ColorSpace");
if (pList) {
- pdfium::ScopedSetInsertion<CPDF_Object*> insertion(pVisited, pCSObj);
- return GetColorSpaceImpl(pList->GetDirectObjectFor(name), nullptr,
- pVisited);
+ return GetColorSpaceGuarded(pList->GetDirectObjectFor(name), nullptr,
+ pVisited);
}
}
if (!pCS || !pResources)
@@ -258,8 +259,7 @@ CPDF_ColorSpace* CPDF_DocPageData::GetColorSpaceImpl(
if (!pDefaultCS)
return pCS;
- pdfium::ScopedSetInsertion<CPDF_Object*> insertion(pVisited, pCSObj);
- return GetColorSpaceImpl(pDefaultCS, nullptr, pVisited);
+ return GetColorSpaceGuarded(pDefaultCS, nullptr, pVisited);
}
CPDF_Array* pArray = pCSObj->AsArray();
@@ -267,9 +267,8 @@ CPDF_ColorSpace* CPDF_DocPageData::GetColorSpaceImpl(
return nullptr;
if (pArray->GetCount() == 1) {
- pdfium::ScopedSetInsertion<CPDF_Object*> insertion(pVisited, pCSObj);
- return GetColorSpaceImpl(pArray->GetDirectObjectAt(0), pResources,
- pVisited);
+ return GetColorSpaceGuarded(pArray->GetDirectObjectAt(0), pResources,
+ pVisited);
}
CPDF_CountedColorSpace* csData = nullptr;
@@ -282,7 +281,7 @@ CPDF_ColorSpace* CPDF_DocPageData::GetColorSpaceImpl(
}
std::unique_ptr<CPDF_ColorSpace> pCS =
- CPDF_ColorSpace::Load(m_pPDFDoc.Get(), pArray);
+ CPDF_ColorSpace::Load(m_pPDFDoc.Get(), pArray, pVisited);
if (!pCS)
return nullptr;
diff --git a/core/fpdfapi/page/cpdf_docpagedata.h b/core/fpdfapi/page/cpdf_docpagedata.h
index 0fda16911d..40647bc9a6 100644
--- a/core/fpdfapi/page/cpdf_docpagedata.h
+++ b/core/fpdfapi/page/cpdf_docpagedata.h
@@ -41,6 +41,10 @@ class CPDF_DocPageData {
CPDF_ColorSpace* GetColorSpace(CPDF_Object* pCSObj,
const CPDF_Dictionary* pResources);
+ CPDF_ColorSpace* GetColorSpaceGuarded(CPDF_Object* pCSObj,
+ const CPDF_Dictionary* pResources,
+ std::set<CPDF_Object*>* pVisited);
+
CPDF_ColorSpace* GetCopiedColorSpace(CPDF_Object* pCSObj);
void ReleaseColorSpace(const CPDF_Object* pColorSpace);
@@ -64,10 +68,6 @@ class CPDF_DocPageData {
private:
using CPDF_CountedFont = CPDF_CountedObject<CPDF_Font>;
- CPDF_ColorSpace* GetColorSpaceImpl(CPDF_Object* pCSObj,
- const CPDF_Dictionary* pResources,
- std::set<CPDF_Object*>* pVisited);
-
bool m_bForceClear;
CFX_UnownedPtr<CPDF_Document> const m_pPDFDoc;
std::map<CFX_ByteString, CPDF_Stream*> m_HashProfileMap;
diff --git a/core/fpdfapi/page/cpdf_patterncs.cpp b/core/fpdfapi/page/cpdf_patterncs.cpp
index 46b975ab67..d1b7bf8e10 100644
--- a/core/fpdfapi/page/cpdf_patterncs.cpp
+++ b/core/fpdfapi/page/cpdf_patterncs.cpp
@@ -24,13 +24,15 @@ CPDF_PatternCS::~CPDF_PatternCS() {
}
}
-bool CPDF_PatternCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
+bool CPDF_PatternCS::v_Load(CPDF_Document* pDoc,
+ CPDF_Array* pArray,
+ std::set<CPDF_Object*>* pVisited) {
CPDF_Object* pBaseCS = pArray->GetDirectObjectAt(1);
if (pBaseCS == m_pArray)
return false;
CPDF_DocPageData* pDocPageData = pDoc->GetPageData();
- m_pBaseCS = pDocPageData->GetColorSpace(pBaseCS, nullptr);
+ m_pBaseCS = pDocPageData->GetColorSpaceGuarded(pBaseCS, nullptr, pVisited);
if (!m_pBaseCS) {
m_nComponents = 1;
return true;
diff --git a/core/fpdfapi/page/cpdf_patterncs.h b/core/fpdfapi/page/cpdf_patterncs.h
index ff5ad827cc..288c6f6d96 100644
--- a/core/fpdfapi/page/cpdf_patterncs.h
+++ b/core/fpdfapi/page/cpdf_patterncs.h
@@ -7,6 +7,8 @@
#ifndef CORE_FPDFAPI_PAGE_CPDF_PATTERNCS_H_
#define CORE_FPDFAPI_PAGE_CPDF_PATTERNCS_H_
+#include <set>
+
#include "core/fpdfapi/page/cpdf_colorspace.h"
class CPDF_Document;
@@ -17,7 +19,9 @@ class CPDF_PatternCS : public CPDF_ColorSpace {
~CPDF_PatternCS() override;
// CPDF_ColorSpace:
- bool v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override;
+ bool v_Load(CPDF_Document* pDoc,
+ CPDF_Array* pArray,
+ std::set<CPDF_Object*>* pVisited) override;
bool GetRGB(float* pBuf, float* R, float* G, float* B) const override;
private:
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-27 18:13:39 +0000