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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_document.h"
#include "core/fpdfapi/parser/cpdf_name.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 "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_app.h"
#include "fpdfsdk/fpdfxfa/cpdfxfa_document.h"
#endif // PDF_ENABLE_XFA
class CPDF_TestDocument : public CPDF_Document {
public:
CPDF_TestDocument() : CPDF_Document(std::unique_ptr<CPDF_Parser>()) {}
void SetRoot(CPDF_Dictionary* root) { m_pRootDict = root; }
CPDF_IndirectObjectHolder* GetHolder() { return this; }
};
#ifdef PDF_ENABLE_XFA
class CPDF_TestXFADocument : public CPDFXFA_Document {
public:
CPDF_TestXFADocument()
: CPDFXFA_Document(pdfium::MakeUnique<CPDF_TestDocument>(),
CPDFXFA_App::GetInstance()) {}
void SetRoot(CPDF_Dictionary* root) {
reinterpret_cast<CPDF_TestDocument*>(GetPDFDoc())->SetRoot(root);
}
CPDF_IndirectObjectHolder* GetHolder() { return GetPDFDoc(); }
};
using CPDF_TestPdfDocument = CPDF_TestXFADocument;
#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 {
// We don't need page module or render module, but
// initialize them to keep the code sane.
CPDF_ModuleMgr* module_mgr = CPDF_ModuleMgr::Get();
module_mgr->InitPageModule();
m_pDoc = pdfium::MakeUnique<CPDF_TestPdfDocument>();
m_pIndirectObjs = m_pDoc->GetHolder();
// Setup the root directory.
m_pRootObj.reset(new 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->AddIndirectDictionary();
info.push_back({obj->GetObjNum(), obj});
}
return info;
}
protected:
std::unique_ptr<CPDF_TestPdfDocument> m_pDoc;
CPDF_IndirectObjectHolder* m_pIndirectObjs;
std::unique_ptr<CPDF_Dictionary, ReleaseDeleter<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->SetFor("Outlines", new CPDF_Dictionary());
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->SetFor("Title", new CPDF_String(L"Chapter 1"));
bookmarks[1].obj->SetFor(
"Parent", new CPDF_Reference(m_pIndirectObjs, bookmarks[0].num));
bookmarks[1].obj->SetFor(
"Next", new CPDF_Reference(m_pIndirectObjs, bookmarks[2].num));
bookmarks[2].obj->SetFor("Title", new CPDF_String(L"Chapter 2"));
bookmarks[2].obj->SetFor(
"Parent", new CPDF_Reference(m_pIndirectObjs, bookmarks[0].num));
bookmarks[2].obj->SetFor(
"Prev", new CPDF_Reference(m_pIndirectObjs, bookmarks[1].num));
bookmarks[0].obj->SetFor("Type", new CPDF_Name("Outlines"));
bookmarks[0].obj->SetFor("Count", new CPDF_Number(2));
bookmarks[0].obj->SetFor(
"First", new CPDF_Reference(m_pIndirectObjs, bookmarks[1].num));
bookmarks[0].obj->SetFor(
"Last", new CPDF_Reference(m_pIndirectObjs, bookmarks[2].num));
m_pRootObj->SetFor("Outlines",
new CPDF_Reference(m_pIndirectObjs, 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->SetFor("Title", new CPDF_String(L"Chapter 1"));
bookmarks[1].obj->SetFor(
"Parent", new CPDF_Reference(m_pIndirectObjs, bookmarks[0].num));
bookmarks[1].obj->SetFor(
"First", new CPDF_Reference(m_pIndirectObjs, bookmarks[2].num));
bookmarks[2].obj->SetFor("Title", new CPDF_String(L"Chapter 2"));
bookmarks[2].obj->SetFor(
"Parent", new CPDF_Reference(m_pIndirectObjs, bookmarks[1].num));
bookmarks[2].obj->SetFor(
"First", new CPDF_Reference(m_pIndirectObjs, bookmarks[1].num));
bookmarks[0].obj->SetFor("Type", new CPDF_Name("Outlines"));
bookmarks[0].obj->SetFor("Count", new CPDF_Number(2));
bookmarks[0].obj->SetFor(
"First", new CPDF_Reference(m_pIndirectObjs, bookmarks[1].num));
bookmarks[0].obj->SetFor(
"Last", new CPDF_Reference(m_pIndirectObjs, bookmarks[2].num));
m_pRootObj->SetFor("Outlines",
new CPDF_Reference(m_pIndirectObjs, 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->SetFor("Title", new CPDF_String(L"Chapter 1"));
bookmarks[1].obj->SetFor(
"Parent", new CPDF_Reference(m_pIndirectObjs, bookmarks[0].num));
bookmarks[1].obj->SetFor(
"Next", new CPDF_Reference(m_pIndirectObjs, bookmarks[2].num));
bookmarks[2].obj->SetFor("Title", new CPDF_String(L"Chapter 2"));
bookmarks[2].obj->SetFor(
"Parent", new CPDF_Reference(m_pIndirectObjs, bookmarks[0].num));
bookmarks[2].obj->SetFor(
"Next", new CPDF_Reference(m_pIndirectObjs, bookmarks[3].num));
bookmarks[3].obj->SetFor("Title", new CPDF_String(L"Chapter 3"));
bookmarks[3].obj->SetFor(
"Parent", new CPDF_Reference(m_pIndirectObjs, bookmarks[0].num));
bookmarks[3].obj->SetFor(
"Next", new CPDF_Reference(m_pIndirectObjs, bookmarks[1].num));
bookmarks[0].obj->SetFor("Type", new CPDF_Name("Outlines"));
bookmarks[0].obj->SetFor("Count", new CPDF_Number(2));
bookmarks[0].obj->SetFor(
"First", new CPDF_Reference(m_pIndirectObjs, bookmarks[1].num));
bookmarks[0].obj->SetFor(
"Last", new CPDF_Reference(m_pIndirectObjs, bookmarks[2].num));
m_pRootObj->SetFor("Outlines",
new CPDF_Reference(m_pIndirectObjs, 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()));
}
}
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