blob: d0097269b944af8f0eef143ea1123dbb14d2a260 [file] [log] [blame]
// Copyright 2019 The PDFium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "testing/fuzzers/pdf_fuzzer_init_public.h"
#include <string.h> // For memset()
#include <string>
#include "testing/fuzzers/pdfium_fuzzer_util.h"
#ifdef PDF_ENABLE_V8
#include "testing/free_deleter.h"
#include "testing/v8_initializer.h"
#include "v8/include/v8-platform.h"
#ifdef PDF_ENABLE_XFA
#include "testing/fuzzers/xfa_process_state.h"
#include "v8/include/v8-array-buffer.h"
#include "v8/include/v8-isolate.h"
#endif // PDF_ENABLE_XFA
#endif // PDF_ENABLE_V8
#ifdef _WIN32
#include <windows.h>
#elif defined(__APPLE__)
#include <mach-o/dyld.h>
#else // Linux
#include <linux/limits.h>
#include <unistd.h>
#endif // _WIN32
namespace {
// pdf_fuzzer_init.cc and pdf_fuzzer_init_public.cc are mutually exclusive
// and should not be built together. Static initializers and destructors
// avoid problems with fuzzer initialization and termination.
PDFFuzzerInitPublic g_instance;
#ifdef PDF_ENABLE_V8
std::string ProgramPath() {
std::string result;
#ifdef _WIN32
char path[MAX_PATH];
DWORD len = GetModuleFileNameA(nullptr, path, MAX_PATH);
if (len != 0)
result = std::string(path, len);
#elif defined(__APPLE__)
char path[PATH_MAX];
unsigned int len = PATH_MAX;
if (!_NSGetExecutablePath(path, &len)) {
std::unique_ptr<char, pdfium::FreeDeleter> resolved_path(
realpath(path, nullptr));
if (resolved_path.get())
result = std::string(resolved_path.get());
}
#else // Linux
char path[PATH_MAX];
ssize_t len = readlink("/proc/self/exe", path, PATH_MAX);
if (len > 0)
result = std::string(path, len);
#endif
return result;
}
#endif // PDF_ENABLE_V8
} // namespace
PDFFuzzerInitPublic::PDFFuzzerInitPublic() {
#ifdef PDF_ENABLE_V8
#ifdef V8_USE_EXTERNAL_STARTUP_DATA
platform_ = InitializeV8ForPDFiumWithStartupData(
ProgramPath(), std::string(), std::string(), &snapshot_blob_);
#else // V8_USE_EXTERNAL_STARTUP_DATA
platform_ = InitializeV8ForPDFium(ProgramPath(), std::string());
#endif // V8_USE_EXTERNAL_STARTUP_DATA
#ifdef PDF_ENABLE_XFA
allocator_.reset(v8::ArrayBuffer::Allocator::NewDefaultAllocator());
v8::Isolate::CreateParams create_params;
create_params.array_buffer_allocator = allocator_.get();
isolate_.reset(v8::Isolate::New(create_params));
#endif // PDF_ENABLE_XFA
#endif // PDF_ENABLE_V8
memset(&config_, '\0', sizeof(config_));
config_.version = 4;
config_.m_pUserFontPaths = nullptr;
config_.m_pPlatform = nullptr;
config_.m_pIsolate = nullptr;
config_.m_v8EmbedderSlot = 0;
#ifdef PDF_ENABLE_V8
config_.m_pPlatform = platform_.get();
config_.m_pIsolate = isolate_.get();
#endif // PDF_ENABLE_V8
#if defined(PDF_USE_SKIA)
config_.m_RendererType = FPDF_RENDERERTYPE_SKIA;
#else
config_.m_RendererType = FPDF_RENDERERTYPE_AGG;
#endif
FPDF_InitLibraryWithConfig(&config_);
memset(&unsupport_info_, '\0', sizeof(unsupport_info_));
unsupport_info_.version = 1;
unsupport_info_.FSDK_UnSupport_Handler = [](UNSUPPORT_INFO*, int) {};
FSDK_SetUnSpObjProcessHandler(&unsupport_info_);
#ifdef PDF_ENABLE_XFA
xfa_process_state_ =
std::make_unique<XFAProcessState>(platform_.get(), isolate_.get());
FPDF_SetFuzzerPerProcessState(xfa_process_state_.get());
#endif
}
PDFFuzzerInitPublic::~PDFFuzzerInitPublic() {
FPDF_SetFuzzerPerProcessState(nullptr);
}