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-rw-r--r--core/fpdfapi/parser/cpdf_object_unittest.cpp24
-rw-r--r--core/fpdfapi/parser/cpdf_object_walker_unittest.cpp11
-rw-r--r--core/fpdfapi/parser/cpdf_stream.cpp28
-rw-r--r--core/fpdfapi/parser/cpdf_stream.h1
4 files changed, 48 insertions, 16 deletions
diff --git a/core/fpdfapi/parser/cpdf_object_unittest.cpp b/core/fpdfapi/parser/cpdf_object_unittest.cpp
index dd170ba90e..169e0f1e56 100644
--- a/core/fpdfapi/parser/cpdf_object_unittest.cpp
+++ b/core/fpdfapi/parser/cpdf_object_unittest.cpp
@@ -828,6 +828,30 @@ TEST(PDFStreamTest, SetDataAndRemoveFilter) {
EXPECT_FALSE(stream->GetDict()->KeyExist("DecodeParms"));
}
+TEST(PDFStreamTest, LengthInDictionaryOnCreate) {
+ static constexpr uint32_t kBufSize = 100;
+ // The length field should be created on stream create.
+ {
+ std::unique_ptr<uint8_t, FxFreeDeleter> data;
+ data.reset(FX_Alloc(uint8_t, kBufSize));
+ auto stream = pdfium::MakeUnique<CPDF_Stream>(
+ std::move(data), kBufSize, pdfium::MakeUnique<CPDF_Dictionary>());
+ EXPECT_EQ(static_cast<int>(kBufSize),
+ stream->GetDict()->GetIntegerFor("Length"));
+ }
+ // The length field should be corrected on stream create.
+ {
+ std::unique_ptr<uint8_t, FxFreeDeleter> data;
+ data.reset(FX_Alloc(uint8_t, kBufSize));
+ auto dict = pdfium::MakeUnique<CPDF_Dictionary>();
+ dict->SetNewFor<CPDF_Number>("Length", 30000);
+ auto stream = pdfium::MakeUnique<CPDF_Stream>(std::move(data), kBufSize,
+ std::move(dict));
+ EXPECT_EQ(static_cast<int>(kBufSize),
+ stream->GetDict()->GetIntegerFor("Length"));
+ }
+}
+
TEST(PDFDictionaryTest, CloneDirectObject) {
CPDF_IndirectObjectHolder objects_holder;
auto dict = pdfium::MakeUnique<CPDF_Dictionary>();
diff --git a/core/fpdfapi/parser/cpdf_object_walker_unittest.cpp b/core/fpdfapi/parser/cpdf_object_walker_unittest.cpp
index 66c559d3ca..c5ffe844ad 100644
--- a/core/fpdfapi/parser/cpdf_object_walker_unittest.cpp
+++ b/core/fpdfapi/parser/cpdf_object_walker_unittest.cpp
@@ -38,6 +38,8 @@ std::string Walk(CPDF_Object* object) {
result << " Stream";
else if (obj->IsReference())
result << " Ref";
+ else if (obj->IsNumber())
+ result << " Num";
else if (obj->IsNull())
result << " Null";
else
@@ -72,13 +74,14 @@ TEST(CPDF_ObjectWalkerTest, CombinedObject) {
array->Add(pdfium::MakeUnique<CPDF_Stream>(
nullptr, 0, pdfium::MakeUnique<CPDF_Dictionary>()));
dict->SetFor("3", std::move(array));
- EXPECT_EQ(Walk(dict.get()), "Dict Str Bool Arr Ref Null Stream Dict");
+ // The last number for stream length.
+ EXPECT_EQ(Walk(dict.get()), "Dict Str Bool Arr Ref Null Stream Dict Num");
}
TEST(CPDF_ObjectWalkerTest, GetParent) {
- auto level_4 = pdfium::MakeUnique<CPDF_Null>();
+ auto level_4 = pdfium::MakeUnique<CPDF_Number>(0);
auto level_3 = pdfium::MakeUnique<CPDF_Dictionary>();
- level_3->SetFor("AnyObj", std::move(level_4));
+ level_3->SetFor("Length", std::move(level_4));
auto level_2 =
pdfium::MakeUnique<CPDF_Stream>(nullptr, 0, std::move(level_3));
auto level_1 = pdfium::MakeUnique<CPDF_Array>();
@@ -86,7 +89,7 @@ TEST(CPDF_ObjectWalkerTest, GetParent) {
auto level_0 = pdfium::MakeUnique<CPDF_Dictionary>();
level_0->SetFor("Array", std::move(level_1));
- // We have <</Array [ stream( << /AnyObj null >>) ]>>
+ // We have <</Array [ stream( << /Length 0 >>) ]>>
// In this case each step will increase depth.
// And on each step the prev object should be parent for current.
const CPDF_Object* cur_parent = nullptr;
diff --git a/core/fpdfapi/parser/cpdf_stream.cpp b/core/fpdfapi/parser/cpdf_stream.cpp
index 1c8660efb0..fadaec1b7e 100644
--- a/core/fpdfapi/parser/cpdf_stream.cpp
+++ b/core/fpdfapi/parser/cpdf_stream.cpp
@@ -22,7 +22,9 @@ CPDF_Stream::CPDF_Stream() {}
CPDF_Stream::CPDF_Stream(std::unique_ptr<uint8_t, FxFreeDeleter> pData,
uint32_t size,
std::unique_ptr<CPDF_Dictionary> pDict)
- : m_dwSize(size), m_pDict(std::move(pDict)), m_pDataBuf(std::move(pData)) {}
+ : m_pDict(std::move(pDict)) {
+ SetData(std::move(pData), size);
+}
CPDF_Stream::~CPDF_Stream() {
m_ObjNum = kInvalidObjNum;
@@ -54,14 +56,7 @@ void CPDF_Stream::InitStream(const uint8_t* pData,
uint32_t size,
std::unique_ptr<CPDF_Dictionary> pDict) {
m_pDict = std::move(pDict);
- m_bMemoryBased = true;
- m_pFile = nullptr;
- m_pDataBuf.reset(FX_Alloc(uint8_t, size));
- if (pData)
- memcpy(m_pDataBuf.get(), pData, size);
- m_dwSize = size;
- if (m_pDict)
- m_pDict->SetNewFor<CPDF_Number>("Length", static_cast<int>(m_dwSize));
+ SetData(pData, size);
}
void CPDF_Stream::InitStreamFromFile(
@@ -110,10 +105,19 @@ void CPDF_Stream::SetDataAndRemoveFilter(std::ostringstream* stream) {
}
void CPDF_Stream::SetData(const uint8_t* pData, uint32_t size) {
+ std::unique_ptr<uint8_t, FxFreeDeleter> data_copy;
+ if (pData) {
+ data_copy.reset(FX_Alloc(uint8_t, size));
+ memcpy(data_copy.get(), pData, size);
+ }
+ SetData(std::move(data_copy), size);
+}
+
+void CPDF_Stream::SetData(std::unique_ptr<uint8_t, FxFreeDeleter> pData,
+ uint32_t size) {
m_bMemoryBased = true;
- m_pDataBuf.reset(FX_Alloc(uint8_t, size));
- if (pData)
- memcpy(m_pDataBuf.get(), pData, size);
+ m_pFile = nullptr;
+ m_pDataBuf = std::move(pData);
m_dwSize = size;
if (!m_pDict)
m_pDict = pdfium::MakeUnique<CPDF_Dictionary>();
diff --git a/core/fpdfapi/parser/cpdf_stream.h b/core/fpdfapi/parser/cpdf_stream.h
index 1dbbd0343e..3c3b674a48 100644
--- a/core/fpdfapi/parser/cpdf_stream.h
+++ b/core/fpdfapi/parser/cpdf_stream.h
@@ -41,6 +41,7 @@ class CPDF_Stream : public CPDF_Object {
// Does not takes ownership of |pData|, copies into internally-owned buffer.
void SetData(const uint8_t* pData, uint32_t size);
+ void SetData(std::unique_ptr<uint8_t, FxFreeDeleter> pData, uint32_t size);
void SetData(std::ostringstream* stream);
// Set data and remove "Filter" and "DecodeParms" fields from stream
// dictionary.
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-20 02:57:40 +0000