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authortsepez <tsepez@chromium.org>2016-10-10 14:31:05 -0700
committerCommit bot <commit-bot@chromium.org>2016-10-10 14:31:05 -0700
commit836f7d5d23b0951c8be86ccca54ebad43179febe (patch)
tree08225e327d16b7d12c1f68e3c5a10c4158af4809 /core/fpdfapi/parser/cpdf_parser.cpp
parent381fc833ac9e6ea58762b7e7ac8b7f2129e8477f (diff)
downloadpdfium-836f7d5d23b0951c8be86ccca54ebad43179febe.tar.xz
Land all the fixes from 5609f39c but don't enable assertchromium/2887
Split this off so that we don't keep losing this when the assert is reverted again. Review-Url: https://codereview.chromium.org/2401423005
Diffstat (limited to 'core/fpdfapi/parser/cpdf_parser.cpp')
-rw-r--r--core/fpdfapi/parser/cpdf_parser.cpp37
1 files changed, 14 insertions, 23 deletions
diff --git a/core/fpdfapi/parser/cpdf_parser.cpp b/core/fpdfapi/parser/cpdf_parser.cpp
index 17539101a1..f4cde0c198 100644
--- a/core/fpdfapi/parser/cpdf_parser.cpp
+++ b/core/fpdfapi/parser/cpdf_parser.cpp
@@ -956,36 +956,34 @@ FX_BOOL CPDF_Parser::RebuildCrossRef() {
}
FX_BOOL CPDF_Parser::LoadCrossRefV5(FX_FILESIZE* pos, FX_BOOL bMainXRef) {
- CPDF_Object* pObject = ParseIndirectObjectAt(m_pDocument, *pos, 0);
+ std::unique_ptr<CPDF_Object> pObject(
+ ParseIndirectObjectAt(m_pDocument, *pos, 0));
if (!pObject)
return FALSE;
+ CPDF_Object* pUnownedObject = pObject.get();
+
if (m_pDocument) {
CPDF_Dictionary* pRootDict = m_pDocument->GetRoot();
- if (pRootDict && pRootDict->GetObjNum() == pObject->m_ObjNum) {
- // If |pObject| has an objnum assigned then this will leak as Release()
- // will early exit.
- if (pObject->IsStream())
- pObject->Release();
+ if (pRootDict && pRootDict->GetObjNum() == pObject->m_ObjNum)
return FALSE;
- }
- if (!m_pDocument->ReplaceIndirectObjectIfHigherGeneration(pObject->m_ObjNum,
- pObject)) {
+ // Takes ownership of object (std::move someday).
+ uint32_t objnum = pObject->m_ObjNum;
+ if (!m_pDocument->ReplaceIndirectObjectIfHigherGeneration(
+ objnum, pObject.release())) {
return FALSE;
}
}
- CPDF_Stream* pStream = pObject->AsStream();
+ CPDF_Stream* pStream = pUnownedObject->AsStream();
if (!pStream)
return FALSE;
CPDF_Dictionary* pDict = pStream->GetDict();
*pos = pDict->GetIntegerFor("Prev");
int32_t size = pDict->GetIntegerFor("Size");
- if (size < 0) {
- pStream->Release();
+ if (size < 0)
return FALSE;
- }
CPDF_Dictionary* pNewTrailer = ToDictionary(pDict->Clone());
if (bMainXRef) {
@@ -1017,10 +1015,8 @@ FX_BOOL CPDF_Parser::LoadCrossRefV5(FX_FILESIZE* pos, FX_BOOL bMainXRef) {
arrIndex.push_back(std::make_pair(0, size));
pArray = pDict->GetArrayFor("W");
- if (!pArray) {
- pStream->Release();
+ if (!pArray)
return FALSE;
- }
CFX_ArrayTemplate<uint32_t> WidthArray;
FX_SAFE_UINT32 dwAccWidth = 0;
@@ -1029,10 +1025,8 @@ FX_BOOL CPDF_Parser::LoadCrossRefV5(FX_FILESIZE* pos, FX_BOOL bMainXRef) {
dwAccWidth += WidthArray[i];
}
- if (!dwAccWidth.IsValid() || WidthArray.GetSize() < 3) {
- pStream->Release();
+ if (!dwAccWidth.IsValid() || WidthArray.GetSize() < 3)
return FALSE;
- }
uint32_t totalWidth = dwAccWidth.ValueOrDie();
CPDF_StreamAcc acc;
@@ -1092,17 +1086,14 @@ FX_BOOL CPDF_Parser::LoadCrossRefV5(FX_FILESIZE* pos, FX_BOOL bMainXRef) {
if (type == 1) {
m_SortedOffset.insert(offset);
} else {
- if (offset < 0 || !IsValidObjectNumber(offset)) {
- pStream->Release();
+ if (offset < 0 || !IsValidObjectNumber(offset))
return FALSE;
- }
m_ObjectInfo[offset].type = 255;
}
}
}
segindex += count;
}
- pStream->Release();
return TRUE;
}