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// Copyright 2016 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "public/fpdf_doc.h"
#include <memory>
#include <vector>
#include "core/fpdfapi/cpdf_modulemgr.h"
#include "core/fpdfapi/parser/cpdf_array.h"
#include "core/fpdfapi/parser/cpdf_document.h"
#include "core/fpdfapi/parser/cpdf_name.h"
#include "core/fpdfapi/parser/cpdf_null.h"
#include "core/fpdfapi/parser/cpdf_number.h"
#include "core/fpdfapi/parser/cpdf_parser.h"
#include "core/fpdfapi/parser/cpdf_reference.h"
#include "core/fpdfapi/parser/cpdf_string.h"
#include "core/fpdfdoc/cpdf_dest.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "testing/test_support.h"
#include "third_party/base/ptr_util.h"
#ifdef PDF_ENABLE_XFA
#include "fpdfsdk/fpdfxfa/cpdfxfa_context.h"
#endif // PDF_ENABLE_XFA
class CPDF_TestDocument : public CPDF_Document {
public:
CPDF_TestDocument() : CPDF_Document(nullptr) {}
void SetRoot(CPDF_Dictionary* root) { m_pRootDict = root; }
CPDF_IndirectObjectHolder* GetHolder() { return this; }
};
#ifdef PDF_ENABLE_XFA
class CPDF_TestXFAContext : public CPDFXFA_Context {
public:
CPDF_TestXFAContext()
: CPDFXFA_Context(pdfium::MakeUnique<CPDF_TestDocument>()) {}
void SetRoot(CPDF_Dictionary* root) {
reinterpret_cast<CPDF_TestDocument*>(GetPDFDoc())->SetRoot(root);
}
CPDF_IndirectObjectHolder* GetHolder() { return GetPDFDoc(); }
};
using CPDF_TestPdfDocument = CPDF_TestXFAContext;
#else // PDF_ENABLE_XFA
using CPDF_TestPdfDocument = CPDF_TestDocument;
#endif // PDF_ENABLE_XFA
class PDFDocTest : public testing::Test {
public:
struct DictObjInfo {
uint32_t num;
CPDF_Dictionary* obj;
};
void SetUp() override {
CPDF_ModuleMgr::Get()->Init();
m_pDoc = pdfium::MakeUnique<CPDF_TestPdfDocument>();
m_pIndirectObjs = m_pDoc->GetHolder();
// Setup the root directory.
m_pRootObj = pdfium::MakeUnique<CPDF_Dictionary>();
m_pDoc->SetRoot(m_pRootObj.get());
}
void TearDown() override {
m_pRootObj.reset();
m_pIndirectObjs = nullptr;
m_pDoc.reset();
CPDF_ModuleMgr::Destroy();
}
std::vector<DictObjInfo> CreateDictObjs(int num) {
std::vector<DictObjInfo> info;
for (int i = 0; i < num; ++i) {
// Objects created will be released by the document.
CPDF_Dictionary* obj = m_pIndirectObjs->NewIndirect<CPDF_Dictionary>();
info.push_back({obj->GetObjNum(), obj});
}
return info;
}
protected:
std::unique_ptr<CPDF_TestPdfDocument> m_pDoc;
UnownedPtr<CPDF_IndirectObjectHolder> m_pIndirectObjs;
std::unique_ptr<CPDF_Dictionary> m_pRootObj;
};
TEST_F(PDFDocTest, FindBookmark) {
{
// No bookmark information.
std::unique_ptr<unsigned short, pdfium::FreeDeleter> title =
GetFPDFWideString(L"");
EXPECT_EQ(nullptr, FPDFBookmark_Find(m_pDoc.get(), title.get()));
title = GetFPDFWideString(L"Preface");
EXPECT_EQ(nullptr, FPDFBookmark_Find(m_pDoc.get(), title.get()));
}
{
// Empty bookmark tree.
m_pRootObj->SetNewFor<CPDF_Dictionary>("Outlines");
std::unique_ptr<unsigned short, pdfium::FreeDeleter> title =
GetFPDFWideString(L"");
EXPECT_EQ(nullptr, FPDFBookmark_Find(m_pDoc.get(), title.get()));
title = GetFPDFWideString(L"Preface");
EXPECT_EQ(nullptr, FPDFBookmark_Find(m_pDoc.get(), title.get()));
}
{
// Check on a regular bookmark tree.
auto bookmarks = CreateDictObjs(3);
bookmarks[1].obj->SetNewFor<CPDF_String>("Title", L"Chapter 1");
bookmarks[1].obj->SetNewFor<CPDF_Reference>("Parent", m_pIndirectObjs.Get(),
bookmarks[0].num);
bookmarks[1].obj->SetNewFor<CPDF_Reference>("Next", m_pIndirectObjs.Get(),
bookmarks[2].num);
bookmarks[2].obj->SetNewFor<CPDF_String>("Title", L"Chapter 2");
bookmarks[2].obj->SetNewFor<CPDF_Reference>("Parent", m_pIndirectObjs.Get(),
bookmarks[0].num);
bookmarks[2].obj->SetNewFor<CPDF_Reference>("Prev", m_pIndirectObjs.Get(),
bookmarks[1].num);
bookmarks[0].obj->SetNewFor<CPDF_Name>("Type", "Outlines");
bookmarks[0].obj->SetNewFor<CPDF_Number>("Count", 2);
bookmarks[0].obj->SetNewFor<CPDF_Reference>("First", m_pIndirectObjs.Get(),
bookmarks[1].num);
bookmarks[0].obj->SetNewFor<CPDF_Reference>("Last", m_pIndirectObjs.Get(),
bookmarks[2].num);
m_pRootObj->SetNewFor<CPDF_Reference>("Outlines", m_pIndirectObjs.Get(),
bookmarks[0].num);
// Title with no match.
std::unique_ptr<unsigned short, pdfium::FreeDeleter> title =
GetFPDFWideString(L"Chapter 3");
EXPECT_EQ(nullptr, FPDFBookmark_Find(m_pDoc.get(), title.get()));
// Title with partial match only.
title = GetFPDFWideString(L"Chapter");
EXPECT_EQ(nullptr, FPDFBookmark_Find(m_pDoc.get(), title.get()));
// Title with a match.
title = GetFPDFWideString(L"Chapter 2");
EXPECT_EQ(bookmarks[2].obj, FPDFBookmark_Find(m_pDoc.get(), title.get()));
// Title match is case insensitive.
title = GetFPDFWideString(L"cHaPter 2");
EXPECT_EQ(bookmarks[2].obj, FPDFBookmark_Find(m_pDoc.get(), title.get()));
}
{
// Circular bookmarks in depth.
auto bookmarks = CreateDictObjs(3);
bookmarks[1].obj->SetNewFor<CPDF_String>("Title", L"Chapter 1");
bookmarks[1].obj->SetNewFor<CPDF_Reference>("Parent", m_pIndirectObjs.Get(),
bookmarks[0].num);
bookmarks[1].obj->SetNewFor<CPDF_Reference>("First", m_pIndirectObjs.Get(),
bookmarks[2].num);
bookmarks[2].obj->SetNewFor<CPDF_String>("Title", L"Chapter 2");
bookmarks[2].obj->SetNewFor<CPDF_Reference>("Parent", m_pIndirectObjs.Get(),
bookmarks[1].num);
bookmarks[2].obj->SetNewFor<CPDF_Reference>("First", m_pIndirectObjs.Get(),
bookmarks[1].num);
bookmarks[0].obj->SetNewFor<CPDF_Name>("Type", "Outlines");
bookmarks[0].obj->SetNewFor<CPDF_Number>("Count", 2);
bookmarks[0].obj->SetNewFor<CPDF_Reference>("First", m_pIndirectObjs.Get(),
bookmarks[1].num);
bookmarks[0].obj->SetNewFor<CPDF_Reference>("Last", m_pIndirectObjs.Get(),
bookmarks[2].num);
m_pRootObj->SetNewFor<CPDF_Reference>("Outlines", m_pIndirectObjs.Get(),
bookmarks[0].num);
// Title with no match.
std::unique_ptr<unsigned short, pdfium::FreeDeleter> title =
GetFPDFWideString(L"Chapter 3");
EXPECT_EQ(nullptr, FPDFBookmark_Find(m_pDoc.get(), title.get()));
// Title with a match.
title = GetFPDFWideString(L"Chapter 2");
EXPECT_EQ(bookmarks[2].obj, FPDFBookmark_Find(m_pDoc.get(), title.get()));
}
{
// Circular bookmarks in breadth.
auto bookmarks = CreateDictObjs(4);
bookmarks[1].obj->SetNewFor<CPDF_String>("Title", L"Chapter 1");
bookmarks[1].obj->SetNewFor<CPDF_Reference>("Parent", m_pIndirectObjs.Get(),
bookmarks[0].num);
bookmarks[1].obj->SetNewFor<CPDF_Reference>("Next", m_pIndirectObjs.Get(),
bookmarks[2].num);
bookmarks[2].obj->SetNewFor<CPDF_String>("Title", L"Chapter 2");
bookmarks[2].obj->SetNewFor<CPDF_Reference>("Parent", m_pIndirectObjs.Get(),
bookmarks[0].num);
bookmarks[2].obj->SetNewFor<CPDF_Reference>("Next", m_pIndirectObjs.Get(),
bookmarks[3].num);
bookmarks[3].obj->SetNewFor<CPDF_String>("Title", L"Chapter 3");
bookmarks[3].obj->SetNewFor<CPDF_Reference>("Parent", m_pIndirectObjs.Get(),
bookmarks[0].num);
bookmarks[3].obj->SetNewFor<CPDF_Reference>("Next", m_pIndirectObjs.Get(),
bookmarks[1].num);
bookmarks[0].obj->SetNewFor<CPDF_Name>("Type", "Outlines");
bookmarks[0].obj->SetNewFor<CPDF_Number>("Count", 2);
bookmarks[0].obj->SetNewFor<CPDF_Reference>("First", m_pIndirectObjs.Get(),
bookmarks[1].num);
bookmarks[0].obj->SetNewFor<CPDF_Reference>("Last", m_pIndirectObjs.Get(),
bookmarks[2].num);
m_pRootObj->SetNewFor<CPDF_Reference>("Outlines", m_pIndirectObjs.Get(),
bookmarks[0].num);
// Title with no match.
std::unique_ptr<unsigned short, pdfium::FreeDeleter> title =
GetFPDFWideString(L"Chapter 8");
EXPECT_EQ(nullptr, FPDFBookmark_Find(m_pDoc.get(), title.get()));
// Title with a match.
title = GetFPDFWideString(L"Chapter 3");
EXPECT_EQ(bookmarks[3].obj, FPDFBookmark_Find(m_pDoc.get(), title.get()));
}
}
TEST_F(PDFDocTest, GetLocationInPage) {
auto array = pdfium::MakeUnique<CPDF_Array>();
array->AddNew<CPDF_Number>(0); // Page Index.
array->AddNew<CPDF_Name>("XYZ");
array->AddNew<CPDF_Number>(4); // X
array->AddNew<CPDF_Number>(5); // Y
array->AddNew<CPDF_Number>(6); // Zoom.
FPDF_BOOL hasX;
FPDF_BOOL hasY;
FPDF_BOOL hasZoom;
FS_FLOAT x;
FS_FLOAT y;
FS_FLOAT zoom;
EXPECT_TRUE(FPDFDest_GetLocationInPage(array.get(), &hasX, &hasY, &hasZoom,
&x, &y, &zoom));
EXPECT_TRUE(hasX);
EXPECT_TRUE(hasY);
EXPECT_TRUE(hasZoom);
EXPECT_EQ(4, x);
EXPECT_EQ(5, y);
EXPECT_EQ(6, zoom);
array->SetNewAt<CPDF_Null>(2);
array->SetNewAt<CPDF_Null>(3);
array->SetNewAt<CPDF_Null>(4);
EXPECT_TRUE(FPDFDest_GetLocationInPage(array.get(), &hasX, &hasY, &hasZoom,
&x, &y, &zoom));
EXPECT_FALSE(hasX);
EXPECT_FALSE(hasY);
EXPECT_FALSE(hasZoom);
array = pdfium::MakeUnique<CPDF_Array>();
EXPECT_FALSE(FPDFDest_GetLocationInPage(array.get(), &hasX, &hasY, &hasZoom,
&x, &y, &zoom));
}
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