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// Copyright 2015 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 "testing/embedder_test.h"
#include <limits.h>
#include <list>
#include <string>
#include <utility>
#include <vector>
#include "core/fdrm/crypto/fx_crypt.h"
#include "public/fpdf_dataavail.h"
#include "public/fpdf_edit.h"
#include "public/fpdf_text.h"
#include "public/fpdfview.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/test_support.h"
#include "testing/utils/path_service.h"
#include "third_party/base/ptr_util.h"
#ifdef PDF_ENABLE_V8
#include "v8/include/v8-platform.h"
#include "v8/include/v8.h"
#endif // PDF_ENABLE_V8
namespace {
const char* g_exe_path = nullptr;
#ifdef PDF_ENABLE_V8
#ifdef V8_USE_EXTERNAL_STARTUP_DATA
v8::StartupData* g_v8_natives = nullptr;
v8::StartupData* g_v8_snapshot = nullptr;
#endif // V8_USE_EXTERNAL_STARTUP_DATA
#endif // PDF_ENABLE_V8
int GetBitmapBytesPerPixel(FPDF_BITMAP bitmap) {
const int format = FPDFBitmap_GetFormat(bitmap);
switch (format) {
case FPDFBitmap_Gray:
return 1;
case FPDFBitmap_BGR:
return 3;
case FPDFBitmap_BGRx:
case FPDFBitmap_BGRA:
return 4;
default:
ASSERT(false);
return 0;
}
}
} // namespace
EmbedderTest::EmbedderTest()
: default_delegate_(new EmbedderTest::Delegate()),
document_(nullptr),
form_handle_(nullptr),
avail_(nullptr),
external_isolate_(nullptr),
loader_(nullptr),
file_length_(0),
file_contents_(nullptr) {
memset(&file_access_, 0, sizeof(file_access_));
delegate_ = default_delegate_.get();
#ifdef PDF_ENABLE_V8
#ifdef V8_USE_EXTERNAL_STARTUP_DATA
if (g_v8_natives && g_v8_snapshot) {
InitializeV8ForPDFium(g_exe_path, std::string(), nullptr, nullptr,
&platform_);
} else {
g_v8_natives = new v8::StartupData;
g_v8_snapshot = new v8::StartupData;
InitializeV8ForPDFium(g_exe_path, std::string(), g_v8_natives,
g_v8_snapshot, &platform_);
}
#else
InitializeV8ForPDFium(g_exe_path, &platform_);
#endif // V8_USE_EXTERNAL_STARTUP_DATA
#endif // FPDF_ENABLE_V8
FPDF_FILEWRITE::version = 1;
FPDF_FILEWRITE::WriteBlock = WriteBlockCallback;
}
EmbedderTest::~EmbedderTest() {
#ifdef PDF_ENABLE_V8
v8::V8::ShutdownPlatform();
delete platform_;
#endif // PDF_ENABLE_V8
}
void EmbedderTest::SetUp() {
FPDF_LIBRARY_CONFIG config;
config.version = 2;
config.m_pUserFontPaths = nullptr;
config.m_v8EmbedderSlot = 0;
config.m_pIsolate = external_isolate_;
FPDF_InitLibraryWithConfig(&config);
UNSUPPORT_INFO* info = static_cast<UNSUPPORT_INFO*>(this);
memset(info, 0, sizeof(UNSUPPORT_INFO));
info->version = 1;
info->FSDK_UnSupport_Handler = UnsupportedHandlerTrampoline;
FSDK_SetUnSpObjProcessHandler(info);
}
void EmbedderTest::TearDown() {
if (document_) {
FORM_DoDocumentAAction(form_handle_, FPDFDOC_AACTION_WC);
FPDFDOC_ExitFormFillEnvironment(form_handle_);
FPDF_CloseDocument(document_);
}
FPDFAvail_Destroy(avail_);
FPDF_DestroyLibrary();
delete loader_;
}
bool EmbedderTest::CreateEmptyDocument() {
document_ = FPDF_CreateNewDocument();
if (!document_)
return false;
form_handle_ = SetupFormFillEnvironment(document_);
return true;
}
bool EmbedderTest::OpenDocument(const std::string& filename,
const char* password,
bool must_linearize) {
std::string file_path;
if (!PathService::GetTestFilePath(filename, &file_path))
return false;
file_contents_ = GetFileContents(file_path.c_str(), &file_length_);
if (!file_contents_)
return false;
EXPECT_TRUE(!loader_);
loader_ = new TestLoader(file_contents_.get(), file_length_);
file_access_.m_FileLen = static_cast<unsigned long>(file_length_);
file_access_.m_GetBlock = TestLoader::GetBlock;
file_access_.m_Param = loader_;
fake_file_access_ = pdfium::MakeUnique<FakeFileAccess>(&file_access_);
return OpenDocumentHelper(password, must_linearize, fake_file_access_.get(),
&document_, &avail_, &form_handle_);
}
bool EmbedderTest::OpenDocumentHelper(const char* password,
bool must_linearize,
FakeFileAccess* network_simulator,
FPDF_DOCUMENT* document,
FPDF_AVAIL* avail,
FPDF_FORMHANDLE* form_handle) {
network_simulator->AddSegment(0, 1024);
network_simulator->SetRequestedDataAvailable();
*avail = FPDFAvail_Create(network_simulator->GetFileAvail(),
network_simulator->GetFileAccess());
if (FPDFAvail_IsLinearized(*avail) == PDF_LINEARIZED) {
int32_t nRet = PDF_DATA_NOTAVAIL;
while (nRet == PDF_DATA_NOTAVAIL) {
network_simulator->SetRequestedDataAvailable();
nRet =
FPDFAvail_IsDocAvail(*avail, network_simulator->GetDownloadHints());
}
if (nRet == PDF_DATA_ERROR)
return false;
*document = FPDFAvail_GetDocument(*avail, password);
if (!*document)
return false;
nRet = PDF_DATA_NOTAVAIL;
while (nRet == PDF_DATA_NOTAVAIL) {
network_simulator->SetRequestedDataAvailable();
nRet =
FPDFAvail_IsFormAvail(*avail, network_simulator->GetDownloadHints());
}
if (nRet == PDF_FORM_ERROR)
return false;
int page_count = FPDF_GetPageCount(*document);
for (int i = 0; i < page_count; ++i) {
nRet = PDF_DATA_NOTAVAIL;
while (nRet == PDF_DATA_NOTAVAIL) {
network_simulator->SetRequestedDataAvailable();
nRet = FPDFAvail_IsPageAvail(*avail, i,
network_simulator->GetDownloadHints());
}
if (nRet == PDF_DATA_ERROR)
return false;
}
} else {
if (must_linearize)
return false;
network_simulator->SetWholeFileAvailable();
*document =
FPDF_LoadCustomDocument(network_simulator->GetFileAccess(), password);
if (!*document)
return false;
}
*form_handle = SetupFormFillEnvironment(*document);
#ifdef PDF_ENABLE_XFA
int doc_type = FPDF_GetFormType(*document);
if (doc_type == FORMTYPE_XFA_FULL || doc_type == FORMTYPE_XFA_FOREGROUND)
FPDF_LoadXFA(*document);
#endif // PDF_ENABLE_XFA
(void)FPDF_GetDocPermissions(*document);
return true;
}
FPDF_FORMHANDLE EmbedderTest::SetupFormFillEnvironment(FPDF_DOCUMENT doc) {
IPDF_JSPLATFORM* platform = static_cast<IPDF_JSPLATFORM*>(this);
memset(platform, '\0', sizeof(IPDF_JSPLATFORM));
platform->version = 2;
platform->app_alert = AlertTrampoline;
platform->m_isolate = external_isolate_;
FPDF_FORMFILLINFO* formfillinfo = static_cast<FPDF_FORMFILLINFO*>(this);
memset(formfillinfo, 0, sizeof(FPDF_FORMFILLINFO));
#ifdef PDF_ENABLE_XFA
formfillinfo->version = 2;
#else // PDF_ENABLE_XFA
formfillinfo->version = 1;
#endif // PDF_ENABLE_XFA
formfillinfo->FFI_SetTimer = SetTimerTrampoline;
formfillinfo->FFI_KillTimer = KillTimerTrampoline;
formfillinfo->FFI_GetPage = GetPageTrampoline;
formfillinfo->m_pJsPlatform = platform;
FPDF_FORMHANDLE form_handle =
FPDFDOC_InitFormFillEnvironment(doc, formfillinfo);
FPDF_SetFormFieldHighlightColor(form_handle, 0, 0xFFE4DD);
FPDF_SetFormFieldHighlightAlpha(form_handle, 100);
return form_handle;
}
void EmbedderTest::DoOpenActions() {
ASSERT(form_handle_);
FORM_DoDocumentJSAction(form_handle_);
FORM_DoDocumentOpenAction(form_handle_);
}
int EmbedderTest::GetFirstPageNum() {
int first_page = FPDFAvail_GetFirstPageNum(document_);
(void)FPDFAvail_IsPageAvail(avail_, first_page,
fake_file_access_->GetDownloadHints());
return first_page;
}
int EmbedderTest::GetPageCount() {
int page_count = FPDF_GetPageCount(document_);
for (int i = 0; i < page_count; ++i)
(void)FPDFAvail_IsPageAvail(avail_, i,
fake_file_access_->GetDownloadHints());
return page_count;
}
FPDF_PAGE EmbedderTest::LoadPage(int page_number) {
ASSERT(form_handle_);
// First check whether it is loaded already.
auto it = page_map_.find(page_number);
if (it != page_map_.end())
return it->second;
FPDF_PAGE page = FPDF_LoadPage(document_, page_number);
if (!page)
return nullptr;
FORM_OnAfterLoadPage(page, form_handle_);
FORM_DoPageAAction(page, form_handle_, FPDFPAGE_AACTION_OPEN);
// Cache the page.
page_map_[page_number] = page;
page_reverse_map_[page] = page_number;
return page;
}
FPDF_BITMAP EmbedderTest::RenderPage(FPDF_PAGE page) {
return RenderPageWithFlags(page, form_handle_, 0);
}
FPDF_BITMAP EmbedderTest::RenderPageWithFlags(FPDF_PAGE page,
FPDF_FORMHANDLE handle,
int flags) {
int width = static_cast<int>(FPDF_GetPageWidth(page));
int height = static_cast<int>(FPDF_GetPageHeight(page));
int alpha = FPDFPage_HasTransparency(page) ? 1 : 0;
FPDF_BITMAP bitmap = FPDFBitmap_Create(width, height, alpha);
FPDF_DWORD fill_color = alpha ? 0x00000000 : 0xFFFFFFFF;
FPDFBitmap_FillRect(bitmap, 0, 0, width, height, fill_color);
FPDF_RenderPageBitmap(bitmap, page, 0, 0, width, height, 0, flags);
FPDF_FFLDraw(handle, bitmap, page, 0, 0, width, height, 0, flags);
return bitmap;
}
void EmbedderTest::UnloadPage(FPDF_PAGE page) {
ASSERT(form_handle_);
FORM_DoPageAAction(page, form_handle_, FPDFPAGE_AACTION_CLOSE);
FORM_OnBeforeClosePage(page, form_handle_);
FPDF_ClosePage(page);
auto it = page_reverse_map_.find(page);
if (it == page_reverse_map_.end())
return;
page_map_.erase(it->second);
page_reverse_map_.erase(it);
}
FPDF_DOCUMENT EmbedderTest::OpenSavedDocument(const char* password) {
memset(&saved_file_access_, 0, sizeof(saved_file_access_));
saved_file_access_.m_FileLen = m_String.size();
saved_file_access_.m_GetBlock = GetBlockFromString;
saved_file_access_.m_Param = &m_String;
saved_fake_file_access_ =
pdfium::MakeUnique<FakeFileAccess>(&saved_file_access_);
EXPECT_TRUE(OpenDocumentHelper(password, false, saved_fake_file_access_.get(),
&m_SavedDocument, &m_SavedAvail,
&m_SavedForm));
return m_SavedDocument;
}
void EmbedderTest::CloseSavedDocument() {
ASSERT(!m_SavedPage);
ASSERT(m_SavedDocument);
FPDFDOC_ExitFormFillEnvironment(m_SavedForm);
FPDF_CloseDocument(m_SavedDocument);
FPDFAvail_Destroy(m_SavedAvail);
m_SavedForm = nullptr;
m_SavedDocument = nullptr;
m_SavedAvail = nullptr;
}
FPDF_PAGE EmbedderTest::LoadSavedPage() {
ASSERT(m_SavedDocument);
EXPECT_EQ(1, FPDF_GetPageCount(m_SavedDocument));
m_SavedPage = FPDF_LoadPage(m_SavedDocument, 0);
ASSERT(m_SavedPage);
return m_SavedPage;
}
void EmbedderTest::CloseSavedPage() {
ASSERT(m_SavedPage);
FPDF_ClosePage(m_SavedPage);
m_SavedPage = nullptr;
}
void EmbedderTest::VerifySavedRendering(int width,
int height,
const char* md5) {
ASSERT(m_SavedDocument);
ASSERT(m_SavedPage);
FPDF_BITMAP new_bitmap =
RenderPageWithFlags(m_SavedPage, m_SavedForm, FPDF_ANNOT);
CompareBitmap(new_bitmap, width, height, md5);
FPDFBitmap_Destroy(new_bitmap);
}
void EmbedderTest::VerifySavedDocument(int width, int height, const char* md5) {
OpenSavedDocument();
LoadSavedPage();
VerifySavedRendering(width, height, md5);
CloseSavedPage();
CloseSavedDocument();
}
void EmbedderTest::SetWholeFileAvailable() {
ASSERT(fake_file_access_);
fake_file_access_->SetWholeFileAvailable();
}
FPDF_PAGE EmbedderTest::Delegate::GetPage(FPDF_FORMFILLINFO* info,
FPDF_DOCUMENT document,
int page_index) {
EmbedderTest* test = static_cast<EmbedderTest*>(info);
auto it = test->page_map_.find(page_index);
return it != test->page_map_.end() ? it->second : nullptr;
}
// static
void EmbedderTest::UnsupportedHandlerTrampoline(UNSUPPORT_INFO* info,
int type) {
EmbedderTest* test = static_cast<EmbedderTest*>(info);
test->delegate_->UnsupportedHandler(type);
}
// static
int EmbedderTest::AlertTrampoline(IPDF_JSPLATFORM* platform,
FPDF_WIDESTRING message,
FPDF_WIDESTRING title,
int type,
int icon) {
EmbedderTest* test = static_cast<EmbedderTest*>(platform);
return test->delegate_->Alert(message, title, type, icon);
}
// static
int EmbedderTest::SetTimerTrampoline(FPDF_FORMFILLINFO* info,
int msecs,
TimerCallback fn) {
EmbedderTest* test = static_cast<EmbedderTest*>(info);
return test->delegate_->SetTimer(msecs, fn);
}
// static
void EmbedderTest::KillTimerTrampoline(FPDF_FORMFILLINFO* info, int id) {
EmbedderTest* test = static_cast<EmbedderTest*>(info);
return test->delegate_->KillTimer(id);
}
// static
FPDF_PAGE EmbedderTest::GetPageTrampoline(FPDF_FORMFILLINFO* info,
FPDF_DOCUMENT document,
int page_index) {
return static_cast<EmbedderTest*>(info)->delegate_->GetPage(info, document,
page_index);
}
std::string EmbedderTest::HashBitmap(FPDF_BITMAP bitmap,
int expected_width,
int expected_height) {
uint8_t digest[16];
CRYPT_MD5Generate(
static_cast<uint8_t*>(FPDFBitmap_GetBuffer(bitmap)),
expected_width * GetBitmapBytesPerPixel(bitmap) * expected_height,
digest);
return CryptToBase16(digest);
}
// static
void EmbedderTest::CompareBitmap(FPDF_BITMAP bitmap,
int expected_width,
int expected_height,
const char* expected_md5sum) {
ASSERT_EQ(expected_width, FPDFBitmap_GetWidth(bitmap));
ASSERT_EQ(expected_height, FPDFBitmap_GetHeight(bitmap));
// The expected stride is calculated using the same formula as in
// CFX_DIBitmap::CalculatePitchAndSize(), which sets the bitmap stride.
const int expected_stride =
(expected_width * GetBitmapBytesPerPixel(bitmap) * 8 + 31) / 32 * 4;
ASSERT_EQ(expected_stride, FPDFBitmap_GetStride(bitmap));
if (!expected_md5sum)
return;
EXPECT_EQ(expected_md5sum,
HashBitmap(bitmap, expected_width, expected_height));
}
// static
int EmbedderTest::WriteBlockCallback(FPDF_FILEWRITE* pFileWrite,
const void* data,
unsigned long size) {
EmbedderTest* pThis = static_cast<EmbedderTest*>(pFileWrite);
pThis->m_String.append(static_cast<const char*>(data), size);
return 1;
}
// static
int EmbedderTest::GetBlockFromString(void* param,
unsigned long pos,
unsigned char* buf,
unsigned long size) {
std::string* new_file = static_cast<std::string*>(param);
if (!new_file || pos + size < pos)
return 0;
unsigned long file_size = new_file->size();
if (pos + size > file_size)
return 0;
memcpy(buf, new_file->data() + pos, size);
return 1;
}
// Can't use gtest-provided main since we need to stash the path to the
// executable in order to find the external V8 binary data files.
int main(int argc, char** argv) {
g_exe_path = argv[0];
testing::InitGoogleTest(&argc, argv);
testing::InitGoogleMock(&argc, argv);
int ret_val = RUN_ALL_TESTS();
#ifdef PDF_ENABLE_V8
#ifdef V8_USE_EXTERNAL_STARTUP_DATA
if (g_v8_natives)
free(const_cast<char*>(g_v8_natives->data));
if (g_v8_snapshot)
free(const_cast<char*>(g_v8_snapshot->data));
#endif // V8_USE_EXTERNAL_STARTUP_DATA
#endif // PDF_ENABLE_V8
return ret_val;
}