// Copyright (c) 2010 The Chromium 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 <limits.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <wchar.h> #include <list> #include <sstream> #include <string> #include <utility> #include <vector> #include "../fpdfsdk/include/fpdf_dataavail.h" #include "../fpdfsdk/include/fpdf_ext.h" #include "../fpdfsdk/include/fpdfformfill.h" #include "../fpdfsdk/include/fpdftext.h" #include "../fpdfsdk/include/fpdfview.h" #include "../core/include/fxcrt/fx_system.h" #include "image_diff_png.h" #include "v8/include/v8.h" #include "v8/include/libplatform/libplatform.h" #ifdef _WIN32 #define snprintf _snprintf #define PATH_SEPARATOR '\\' #else #define PATH_SEPARATOR '/' #endif enum OutputFormat { OUTPUT_NONE, OUTPUT_PPM, OUTPUT_PNG, #ifdef _WIN32 OUTPUT_BMP, OUTPUT_EMF, #endif }; struct Options { Options() : output_format(OUTPUT_NONE) { } OutputFormat output_format; std::string scale_factor_as_string; std::string exe_path; std::string bin_directory; }; // Reads the entire contents of a file into a newly malloc'd buffer. static char* GetFileContents(const char* filename, size_t* retlen) { FILE* file = fopen(filename, "rb"); if (!file) { fprintf(stderr, "Failed to open: %s\n", filename); return NULL; } (void) fseek(file, 0, SEEK_END); size_t file_length = ftell(file); if (!file_length) { return NULL; } (void) fseek(file, 0, SEEK_SET); char* buffer = (char*) malloc(file_length); if (!buffer) { return NULL; } size_t bytes_read = fread(buffer, 1, file_length, file); (void) fclose(file); if (bytes_read != file_length) { fprintf(stderr, "Failed to read: %s\n", filename); free(buffer); return NULL; } *retlen = bytes_read; return buffer; } #ifdef V8_USE_EXTERNAL_STARTUP_DATA // Returns the full path for an external V8 data file based on either // the currect exectuable path or an explicit override. static std::string GetFullPathForSnapshotFile(const Options& options, const std::string& filename) { std::string result; if (!options.bin_directory.empty()) { result = options.bin_directory; if (*options.bin_directory.rbegin() != PATH_SEPARATOR) { result += PATH_SEPARATOR; } } else if (!options.exe_path.empty()) { size_t last_separator = options.exe_path.rfind(PATH_SEPARATOR); if (last_separator != std::string::npos) { result = options.exe_path.substr(0, last_separator + 1); } } result += filename; return result; } // Reads an extenal V8 data file from the |options|-indicated location, // returing true on success and false on error. static bool GetExternalData(const Options& options, const std::string& bin_filename, v8::StartupData* result_data) { std::string full_path = GetFullPathForSnapshotFile(options, bin_filename); size_t data_length = 0; char* data_buffer = GetFileContents(full_path.c_str(), &data_length); if (!data_buffer) { return false; } result_data->data = const_cast<const char*>(data_buffer); result_data->raw_size = data_length; return true; } #endif // V8_USE_EXTERNAL_STARTUP_DATA static bool CheckDimensions(int stride, int width, int height) { if (stride < 0 || width < 0 || height < 0) return false; if (height > 0 && width > INT_MAX / height) return false; return true; } static void WritePpm(const char* pdf_name, int num, const void* buffer_void, int stride, int width, int height) { const char* buffer = reinterpret_cast<const char*>(buffer_void); if (!CheckDimensions(stride, width, height)) return; int out_len = width * height; if (out_len > INT_MAX / 3) return; out_len *= 3; char filename[256]; snprintf(filename, sizeof(filename), "%s.%d.ppm", pdf_name, num); FILE* fp = fopen(filename, "wb"); if (!fp) return; fprintf(fp, "P6\n# PDF test render\n%d %d\n255\n", width, height); // Source data is B, G, R, unused. // Dest data is R, G, B. char* result = new char[out_len]; if (result) { for (int h = 0; h < height; ++h) { const char* src_line = buffer + (stride * h); char* dest_line = result + (width * h * 3); for (int w = 0; w < width; ++w) { // R dest_line[w * 3] = src_line[(w * 4) + 2]; // G dest_line[(w * 3) + 1] = src_line[(w * 4) + 1]; // B dest_line[(w * 3) + 2] = src_line[w * 4]; } } fwrite(result, out_len, 1, fp); delete [] result; } fclose(fp); } static void WritePng(const char* pdf_name, int num, const void* buffer_void, int stride, int width, int height) { if (!CheckDimensions(stride, width, height)) return; std::vector<unsigned char> png_encoding; const unsigned char* buffer = static_cast<const unsigned char*>(buffer_void); if (!image_diff_png::EncodeBGRAPNG( buffer, width, height, stride, false, &png_encoding)) { fprintf(stderr, "Failed to convert bitmap to PNG\n"); return; } char filename[256]; int chars_formatted = snprintf( filename, sizeof(filename), "%s.%d.png", pdf_name, num); if (chars_formatted < 0 || static_cast<size_t>(chars_formatted) >= sizeof(filename)) { fprintf(stderr, "Filname %s is too long\n", filename); return; } FILE* fp = fopen(filename, "wb"); if (!fp) { fprintf(stderr, "Failed to open %s for output\n", filename); return; } size_t bytes_written = fwrite( &png_encoding.front(), 1, png_encoding.size(), fp); if (bytes_written != png_encoding.size()) fprintf(stderr, "Failed to write to %s\n", filename); (void) fclose(fp); } #ifdef _WIN32 static void WriteBmp(const char* pdf_name, int num, const void* buffer, int stride, int width, int height) { if (!CheckDimensions(stride, width, height)) return; int out_len = stride * height; if (out_len > INT_MAX / 3) return; char filename[256]; snprintf(filename, sizeof(filename), "%s.%d.bmp", pdf_name, num); FILE* fp = fopen(filename, "wb"); if (!fp) return; BITMAPINFO bmi = {0}; bmi.bmiHeader.biSize = sizeof(bmi) - sizeof(RGBQUAD); bmi.bmiHeader.biWidth = width; bmi.bmiHeader.biHeight = -height; // top-down image bmi.bmiHeader.biPlanes = 1; bmi.bmiHeader.biBitCount = 32; bmi.bmiHeader.biCompression = BI_RGB; bmi.bmiHeader.biSizeImage = 0; BITMAPFILEHEADER file_header = {0}; file_header.bfType = 0x4d42; file_header.bfSize = sizeof(file_header) + bmi.bmiHeader.biSize + out_len; file_header.bfOffBits = file_header.bfSize - out_len; fwrite(&file_header, sizeof(file_header), 1, fp); fwrite(&bmi, bmi.bmiHeader.biSize, 1, fp); fwrite(buffer, out_len, 1, fp); fclose(fp); } void WriteEmf(FPDF_PAGE page, const char* pdf_name, int num) { int width = static_cast<int>(FPDF_GetPageWidth(page)); int height = static_cast<int>(FPDF_GetPageHeight(page)); char filename[256]; snprintf(filename, sizeof(filename), "%s.%d.emf", pdf_name, num); HDC dc = CreateEnhMetaFileA(NULL, filename, NULL, NULL); HRGN rgn = CreateRectRgn(0, 0, width, height); SelectClipRgn(dc, rgn); DeleteObject(rgn); SelectObject(dc, GetStockObject(NULL_PEN)); SelectObject(dc, GetStockObject(WHITE_BRUSH)); // If a PS_NULL pen is used, the dimensions of the rectangle are 1 pixel less. Rectangle(dc, 0, 0, width + 1, height + 1); FPDF_RenderPage(dc, page, 0, 0, width, height, 0, FPDF_ANNOT | FPDF_PRINTING | FPDF_NO_CATCH); DeleteEnhMetaFile(CloseEnhMetaFile(dc)); } #endif int Form_Alert(IPDF_JSPLATFORM*, FPDF_WIDESTRING msg, FPDF_WIDESTRING, int, int) { // Deal with differences between UTF16LE and wchar_t on this platform. size_t characters = 0; while (msg[characters]) { ++characters; } wchar_t* platform_string = (wchar_t*)malloc((characters + 1) * sizeof(wchar_t)); for (size_t i = 0; i < characters + 1; ++i) { unsigned char* ptr = (unsigned char*)&msg[i]; platform_string[i] = ptr[0] + 256 * ptr[1]; } printf("Alert: %ls\n", platform_string); free(platform_string); return 0; } void Unsupported_Handler(UNSUPPORT_INFO*, int type) { std::string feature = "Unknown"; switch (type) { case FPDF_UNSP_DOC_XFAFORM: feature = "XFA"; break; case FPDF_UNSP_DOC_PORTABLECOLLECTION: feature = "Portfolios_Packages"; break; case FPDF_UNSP_DOC_ATTACHMENT: case FPDF_UNSP_ANNOT_ATTACHMENT: feature = "Attachment"; break; case FPDF_UNSP_DOC_SECURITY: feature = "Rights_Management"; break; case FPDF_UNSP_DOC_SHAREDREVIEW: feature = "Shared_Review"; break; case FPDF_UNSP_DOC_SHAREDFORM_ACROBAT: case FPDF_UNSP_DOC_SHAREDFORM_FILESYSTEM: case FPDF_UNSP_DOC_SHAREDFORM_EMAIL: feature = "Shared_Form"; break; case FPDF_UNSP_ANNOT_3DANNOT: feature = "3D"; break; case FPDF_UNSP_ANNOT_MOVIE: feature = "Movie"; break; case FPDF_UNSP_ANNOT_SOUND: feature = "Sound"; break; case FPDF_UNSP_ANNOT_SCREEN_MEDIA: case FPDF_UNSP_ANNOT_SCREEN_RICHMEDIA: feature = "Screen"; break; case FPDF_UNSP_ANNOT_SIG: feature = "Digital_Signature"; break; } printf("Unsupported feature: %s.\n", feature.c_str()); } bool ParseCommandLine(const std::vector<std::string>& args, Options* options, std::list<std::string>* files) { if (args.empty()) { return false; } options->exe_path = args[0]; size_t cur_idx = 1; for (; cur_idx < args.size(); ++cur_idx) { const std::string& cur_arg = args[cur_idx]; if (cur_arg == "--ppm") { if (options->output_format != OUTPUT_NONE) { fprintf(stderr, "Duplicate or conflicting --ppm argument\n"); return false; } options->output_format = OUTPUT_PPM; } else if (cur_arg == "--png") { if (options->output_format != OUTPUT_NONE) { fprintf(stderr, "Duplicate or conflicting --png argument\n"); return false; } options->output_format = OUTPUT_PNG; } #ifdef _WIN32 else if (cur_arg == "--emf") { if (options->output_format != OUTPUT_NONE) { fprintf(stderr, "Duplicate or conflicting --emf argument\n"); return false; } options->output_format = OUTPUT_EMF; } else if (cur_arg == "--bmp") { if (options->output_format != OUTPUT_NONE) { fprintf(stderr, "Duplicate or conflicting --bmp argument\n"); return false; } options->output_format = OUTPUT_BMP; } #endif // _WIN32 #ifdef V8_USE_EXTERNAL_STARTUP_DATA else if (cur_arg.size() > 10 && cur_arg.compare(0, 10, "--bin-dir=") == 0) { if (!options->bin_directory.empty()) { fprintf(stderr, "Duplicate --bin-dir argument\n"); return false; } options->bin_directory = cur_arg.substr(10); } #endif // V8_USE_EXTERNAL_STARTUP_DATA else if (cur_arg.size() > 8 && cur_arg.compare(0, 8, "--scale=") == 0) { if (!options->scale_factor_as_string.empty()) { fprintf(stderr, "Duplicate --scale argument\n"); return false; } options->scale_factor_as_string = cur_arg.substr(8); } else break; } if (cur_idx >= args.size()) { fprintf(stderr, "No input files.\n"); return false; } for (size_t i = cur_idx; i < args.size(); i++) { files->push_back(args[i]); } return true; } class TestLoader { public: TestLoader(const char* pBuf, size_t len); const char* m_pBuf; size_t m_Len; }; TestLoader::TestLoader(const char* pBuf, size_t len) : m_pBuf(pBuf), m_Len(len) { } int Get_Block(void* param, unsigned long pos, unsigned char* pBuf, unsigned long size) { TestLoader* pLoader = (TestLoader*) param; if (pos + size < pos || pos + size > pLoader->m_Len) return 0; memcpy(pBuf, pLoader->m_pBuf + pos, size); return 1; } bool Is_Data_Avail(FX_FILEAVAIL* pThis, size_t offset, size_t size) { return true; } void Add_Segment(FX_DOWNLOADHINTS* pThis, size_t offset, size_t size) { } void RenderPdf(const std::string& name, const char* pBuf, size_t len, const Options& options) { fprintf(stderr, "Rendering PDF file %s.\n", name.c_str()); IPDF_JSPLATFORM platform_callbacks; memset(&platform_callbacks, '\0', sizeof(platform_callbacks)); platform_callbacks.version = 1; platform_callbacks.app_alert = Form_Alert; FPDF_FORMFILLINFO form_callbacks; memset(&form_callbacks, '\0', sizeof(form_callbacks)); form_callbacks.version = 2; form_callbacks.m_pJsPlatform = &platform_callbacks; TestLoader loader(pBuf, len); FPDF_FILEACCESS file_access; memset(&file_access, '\0', sizeof(file_access)); file_access.m_FileLen = static_cast<unsigned long>(len); file_access.m_GetBlock = Get_Block; file_access.m_Param = &loader; FX_FILEAVAIL file_avail; memset(&file_avail, '\0', sizeof(file_avail)); file_avail.version = 1; file_avail.IsDataAvail = Is_Data_Avail; FX_DOWNLOADHINTS hints; memset(&hints, '\0', sizeof(hints)); hints.version = 1; hints.AddSegment = Add_Segment; FPDF_DOCUMENT doc; FPDF_AVAIL pdf_avail = FPDFAvail_Create(&file_avail, &file_access); (void) FPDFAvail_IsDocAvail(pdf_avail, &hints); if (!FPDFAvail_IsLinearized(pdf_avail)) { fprintf(stderr, "Non-linearized path...\n"); doc = FPDF_LoadCustomDocument(&file_access, NULL); } else { fprintf(stderr, "Linearized path...\n"); doc = FPDFAvail_GetDocument(pdf_avail, NULL); } (void) FPDF_GetDocPermissions(doc); (void) FPDFAvail_IsFormAvail(pdf_avail, &hints); FPDF_FORMHANDLE form = FPDFDOC_InitFormFillEnvironment(doc, &form_callbacks); if (!FPDF_LoadXFA(doc)) { printf("LoadXFA unsuccessful, continuing anyway.\n"); } FPDF_SetFormFieldHighlightColor(form, 0, 0xFFE4DD); FPDF_SetFormFieldHighlightAlpha(form, 100); int first_page = FPDFAvail_GetFirstPageNum(doc); (void) FPDFAvail_IsPageAvail(pdf_avail, first_page, &hints); int page_count = FPDF_GetPageCount(doc); for (int i = 0; i < page_count; ++i) { (void) FPDFAvail_IsPageAvail(pdf_avail, i, &hints); } FORM_DoDocumentJSAction(form); FORM_DoDocumentOpenAction(form); size_t rendered_pages = 0; size_t bad_pages = 0; for (int i = 0; i < page_count; ++i) { FPDF_PAGE page = FPDF_LoadPage(doc, i); if (!page) { bad_pages ++; continue; } FPDF_TEXTPAGE text_page = FPDFText_LoadPage(page); FORM_OnAfterLoadPage(page, form); FORM_DoPageAAction(page, form, FPDFPAGE_AACTION_OPEN); int width = static_cast<int>(FPDF_GetPageWidth(page)); int height = static_cast<int>(FPDF_GetPageHeight(page)); if (!options.scale_factor_as_string.empty()) { double scale = 1.0; std::stringstream(options.scale_factor_as_string) >> scale; width *= scale; height *= scale; } FPDF_BITMAP bitmap = FPDFBitmap_Create(width, height, 0); FPDFBitmap_FillRect(bitmap, 0, 0, width, height, 0xFFFFFFFF); FPDF_RenderPageBitmap(bitmap, page, 0, 0, width, height, 0, 0); rendered_pages ++; FPDF_FFLDraw(form, bitmap, page, 0, 0, width, height, 0, 0); int stride = FPDFBitmap_GetStride(bitmap); const char* buffer = reinterpret_cast<const char*>(FPDFBitmap_GetBuffer(bitmap)); switch (options.output_format) { #ifdef _WIN32 case OUTPUT_BMP: WriteBmp(name.c_str(), i, buffer, stride, width, height); break; case OUTPUT_EMF: WriteEmf(page, name.c_str(), i); break; #endif case OUTPUT_PPM: WritePpm(name.c_str(), i, buffer, stride, width, height); break; case OUTPUT_PNG: WritePng(name.c_str(), i, buffer, stride, width, height); break; default: break; } FPDFBitmap_Destroy(bitmap); FORM_DoPageAAction(page, form, FPDFPAGE_AACTION_CLOSE); FORM_OnBeforeClosePage(page, form); FPDFText_ClosePage(text_page); FPDF_ClosePage(page); } FORM_DoDocumentAAction(form, FPDFDOC_AACTION_WC); FPDF_CloseDocument(doc); FPDFDOC_ExitFormFillEnvironment(form); FPDFAvail_Destroy(pdf_avail); fprintf(stderr, "Rendered %" PRIuS " pages.\n", rendered_pages); fprintf(stderr, "Skipped %" PRIuS " bad pages.\n", bad_pages); } static const char usage_string[] = "Usage: pdfium_test [OPTION] [FILE]...\n" " --bin-dir=<path> - override path to v8 external data\n" " --scale=<number> - scale output size by number (e.g. 0.5)\n" #ifdef _WIN32 " --bmp - write page images <pdf-name>.<page-number>.bmp\n" " --emf - write page meta files <pdf-name>.<page-number>.emf\n" #endif " --png - write page images <pdf-name>.<page-number>.png\n" " --ppm - write page images <pdf-name>.<page-number>.ppm\n"; int main(int argc, const char* argv[]) { std::vector<std::string> args(argv, argv + argc); Options options; std::list<std::string> files; if (!ParseCommandLine(args, &options, &files)) { fprintf(stderr, "%s", usage_string); return 1; } v8::V8::InitializeICU(); v8::Platform* platform = v8::platform::CreateDefaultPlatform(); v8::V8::InitializePlatform(platform); v8::V8::Initialize(); #ifdef V8_USE_EXTERNAL_STARTUP_DATA v8::StartupData natives; v8::StartupData snapshot; if (!GetExternalData(options, "natives_blob.bin", &natives) || !GetExternalData(options, "snapshot_blob.bin", &snapshot)) { return 1; } v8::V8::SetNativesDataBlob(&natives); v8::V8::SetSnapshotDataBlob(&snapshot); #endif // V8_USE_EXTERNAL_STARTUP_DATA FPDF_InitLibrary(); UNSUPPORT_INFO unsuppored_info; memset(&unsuppored_info, '\0', sizeof(unsuppored_info)); unsuppored_info.version = 1; unsuppored_info.FSDK_UnSupport_Handler = Unsupported_Handler; FSDK_SetUnSpObjProcessHandler(&unsuppored_info); while (!files.empty()) { std::string filename = files.front(); files.pop_front(); size_t file_length = 0; char* file_contents = GetFileContents(filename.c_str(), &file_length); if (!file_contents) continue; RenderPdf(filename, file_contents, file_length, options); free(file_contents); } FPDF_DestroyLibrary(); v8::V8::ShutdownPlatform(); delete platform; return 0; }