// 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 <list> #include <sstream> #include <string> #include <utility> #include <vector> #include "image_diff_png.h" #include "public/fpdf_dataavail.h" #include "public/fpdf_edit.h" #include "public/fpdf_ext.h" #include "public/fpdf_formfill.h" #include "public/fpdf_text.h" #include "public/fpdfview.h" #include "testing/test_support.h" #ifdef PDF_ENABLE_V8 #include "v8/include/libplatform/libplatform.h" #include "v8/include/v8.h" #endif // PDF_ENABLE_V8 #ifdef _WIN32 #define snprintf _snprintf #endif enum OutputFormat { OUTPUT_NONE, OUTPUT_PPM, OUTPUT_PNG, #ifdef _WIN32 OUTPUT_BMP, OUTPUT_EMF, #endif }; struct Options { Options() : show_config(false), output_format(OUTPUT_NONE) {} bool show_config; OutputFormat output_format; std::string scale_factor_as_string; std::string exe_path; std::string bin_directory; std::string font_directory; }; 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]; 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 = {}; 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 = {}; 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(nullptr, filename, nullptr, nullptr); 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 // These example JS platform callback handlers are entirely optional, // and exist here to show the flow of information from a document back // to the embedder. int ExampleAppAlert(IPDF_JSPLATFORM*, FPDF_WIDESTRING msg, FPDF_WIDESTRING title, int nType, int nIcon) { printf("%ls", GetPlatformWString(title).c_str()); if (nIcon || nType) printf("[icon=%d,type=%d]", nIcon, nType); printf(": %ls\n", GetPlatformWString(msg).c_str()); return 0; } int ExampleAppResponse(IPDF_JSPLATFORM*, FPDF_WIDESTRING question, FPDF_WIDESTRING title, FPDF_WIDESTRING defaultValue, FPDF_WIDESTRING label, FPDF_BOOL isPassword, void* response, int length) { printf("%ls: %ls, defaultValue=%ls, label=%ls, isPassword=%d, length=%d\n", GetPlatformWString(title).c_str(), GetPlatformWString(question).c_str(), GetPlatformWString(defaultValue).c_str(), GetPlatformWString(label).c_str(), isPassword, length); // UTF-16, always LE regardless of platform. uint8_t* ptr = static_cast<uint8_t*>(response); ptr[0] = 'N'; ptr[1] = 0; ptr[2] = 'o'; ptr[3] = 0; return 4; } void ExampleDocGotoPage(IPDF_JSPLATFORM*, int pageNumber) { printf("Goto Page: %d\n", pageNumber); } void ExampleDocMail(IPDF_JSPLATFORM*, void* mailData, int length, FPDF_BOOL bUI, FPDF_WIDESTRING To, FPDF_WIDESTRING Subject, FPDF_WIDESTRING CC, FPDF_WIDESTRING BCC, FPDF_WIDESTRING Msg) { printf("Mail Msg: %d, to=%ls, cc=%ls, bcc=%ls, subject=%ls, body=%ls\n", bUI, GetPlatformWString(To).c_str(), GetPlatformWString(CC).c_str(), GetPlatformWString(BCC).c_str(), GetPlatformWString(Subject).c_str(), GetPlatformWString(Msg).c_str()); } void ExampleUnsupportedHandler(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 == "--show-config") { options->show_config = true; } else 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; } else if (cur_arg.size() > 11 && cur_arg.compare(0, 11, "--font-dir=") == 0) { if (!options->font_directory.empty()) { fprintf(stderr, "Duplicate --font-dir argument\n"); return false; } options->font_directory = cur_arg.substr(11); } #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 PDF_ENABLE_V8 #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 #endif // PDF_ENABLE_V8 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 if (cur_arg.size() >= 2 && cur_arg[0] == '-' && cur_arg[1] == '-') { fprintf(stderr, "Unrecognized argument %s\n", cur_arg.c_str()); return false; } else break; } for (size_t i = cur_idx; i < args.size(); i++) { files->push_back(args[i]); } return true; } FPDF_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) { } bool RenderPage(const std::string& name, const FPDF_DOCUMENT& doc, const FPDF_FORMHANDLE& form, const int page_index, const Options& options) { FPDF_PAGE page = FPDF_LoadPage(doc, page_index); if (!page) { return false; } FPDF_TEXTPAGE text_page = FPDFText_LoadPage(page); FORM_OnAfterLoadPage(page, form); FORM_DoPageAAction(page, form, FPDFPAGE_AACTION_OPEN); double scale = 1.0; if (!options.scale_factor_as_string.empty()) { std::stringstream(options.scale_factor_as_string) >> scale; } int width = static_cast<int>(FPDF_GetPageWidth(page) * scale); int height = static_cast<int>(FPDF_GetPageHeight(page) * scale); int alpha = FPDFPage_HasTransparency(page) ? 1 : 0; FPDF_BITMAP bitmap = FPDFBitmap_Create(width, height, alpha); if (!bitmap) { fprintf(stderr, "Page was too large to be rendered.\n"); return false; } 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, 0); 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(), page_index, buffer, stride, width, height); break; case OUTPUT_EMF: WriteEmf(page, name.c_str(), page_index); break; #endif case OUTPUT_PNG: WritePng(name.c_str(), page_index, buffer, stride, width, height); break; case OUTPUT_PPM: WritePpm(name.c_str(), page_index, 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); return true; } 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 = 3; platform_callbacks.app_alert = ExampleAppAlert; platform_callbacks.app_response = ExampleAppResponse; platform_callbacks.Doc_gotoPage = ExampleDocGotoPage; platform_callbacks.Doc_mail = ExampleDocMail; FPDF_FORMFILLINFO form_callbacks; memset(&form_callbacks, '\0', sizeof(form_callbacks)); #ifdef PDF_ENABLE_XFA form_callbacks.version = 2; #else // PDF_ENABLE_XFA form_callbacks.version = 1; #endif // PDF_ENABLE_XFA 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 = TestLoader::GetBlock; 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; int nRet = PDF_DATA_NOTAVAIL; bool bIsLinearized = false; FPDF_AVAIL pdf_avail = FPDFAvail_Create(&file_avail, &file_access); if (FPDFAvail_IsLinearized(pdf_avail) == PDF_LINEARIZED) { fprintf(stderr, "Linearized path...\n"); doc = FPDFAvail_GetDocument(pdf_avail, nullptr); if (doc) { while (nRet == PDF_DATA_NOTAVAIL) { nRet = FPDFAvail_IsDocAvail(pdf_avail, &hints); } if (nRet == PDF_DATA_ERROR) { fprintf(stderr, "Unknown error in checking if doc was available.\n"); return; } nRet = FPDFAvail_IsFormAvail(pdf_avail, &hints); if (nRet == PDF_FORM_ERROR || nRet == PDF_FORM_NOTAVAIL) { fprintf(stderr, "Error %d was returned in checking if form was available.\n", nRet); return; } bIsLinearized = true; } } else { fprintf(stderr, "Non-linearized path...\n"); doc = FPDF_LoadCustomDocument(&file_access, nullptr); } if (!doc) { unsigned long err = FPDF_GetLastError(); fprintf(stderr, "Load pdf docs unsuccessful: "); switch (err) { case FPDF_ERR_SUCCESS: fprintf(stderr, "Success"); break; case FPDF_ERR_UNKNOWN: fprintf(stderr, "Unknown error"); break; case FPDF_ERR_FILE: fprintf(stderr, "File not found or could not be opened"); break; case FPDF_ERR_FORMAT: fprintf(stderr, "File not in PDF format or corrupted"); break; case FPDF_ERR_PASSWORD: fprintf(stderr, "Password required or incorrect password"); break; case FPDF_ERR_SECURITY: fprintf(stderr, "Unsupported security scheme"); break; case FPDF_ERR_PAGE: fprintf(stderr, "Page not found or content error"); break; default: fprintf(stderr, "Unknown error %ld", err); } fprintf(stderr, ".\n"); FPDFAvail_Destroy(pdf_avail); return; } (void)FPDF_GetDocPermissions(doc); FPDF_FORMHANDLE form = FPDFDOC_InitFormFillEnvironment(doc, &form_callbacks); #ifdef PDF_ENABLE_XFA int docType = DOCTYPE_PDF; if (FPDF_HasXFAField(doc, &docType) && docType != DOCTYPE_PDF && !FPDF_LoadXFA(doc)) { fprintf(stderr, "LoadXFA unsuccessful, continuing anyway.\n"); } #endif // PDF_ENABLE_XFA FPDF_SetFormFieldHighlightColor(form, 0, 0xFFE4DD); FPDF_SetFormFieldHighlightAlpha(form, 100); FORM_DoDocumentJSAction(form); FORM_DoDocumentOpenAction(form); int page_count = FPDF_GetPageCount(doc); int rendered_pages = 0; int bad_pages = 0; for (int i = 0; i < page_count; ++i) { if (bIsLinearized) { nRet = PDF_DATA_NOTAVAIL; while (nRet == PDF_DATA_NOTAVAIL) { nRet = FPDFAvail_IsPageAvail(pdf_avail, i, &hints); } if (nRet == PDF_DATA_ERROR) { fprintf(stderr, "Unknown error in checking if page %d is available.\n", i); return; } } if (RenderPage(name, doc, form, i, options)) { ++rendered_pages; } else { ++bad_pages; } } FORM_DoDocumentAAction(form, FPDFDOC_AACTION_WC); #ifdef PDF_ENABLE_XFA // Note: The shut down order here is the reverse of the non-XFA branch order. // Need to work out if this is required, and if it is, the lifetimes of // objects owned by |doc| that |form| reference. FPDF_CloseDocument(doc); FPDFDOC_ExitFormFillEnvironment(form); #else // PDF_ENABLE_XFA FPDFDOC_ExitFormFillEnvironment(form); FPDF_CloseDocument(doc); #endif // PDF_ENABLE_XFA FPDFAvail_Destroy(pdf_avail); fprintf(stderr, "Rendered %d pages.\n", rendered_pages); fprintf(stderr, "Skipped %d bad pages.\n", bad_pages); } static void ShowConfig() { std::string config; std::string maybe_comma; #if PDF_ENABLE_V8 config.append(maybe_comma); config.append("V8"); maybe_comma = ","; #endif // PDF_ENABLE_V8 #ifdef V8_USE_EXTERNAL_STARTUP_DATA config.append(maybe_comma); config.append("V8_EXTERNAL"); maybe_comma = ","; #endif // V8_USE_EXTERNAL_STARTUP_DATA #ifdef PDF_ENABLE_XFA config.append(maybe_comma); config.append("XFA"); maybe_comma = ","; #endif // PDF_ENABLE_XFA printf("%s\n", config.c_str()); } static const char usage_string[] = "Usage: pdfium_test [OPTION] [FILE]...\n" " --show-config - print build options and exit\n" " --bin-dir=<path> - override path to v8 external data\n" " --font-dir=<path> - override path to external fonts\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 // _WIN32 " --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; } if (options.show_config) { ShowConfig(); return 0; } if (files.empty()) { fprintf(stderr, "No input files.\n"); return 1; } #ifdef PDF_ENABLE_V8 v8::Platform* platform; #ifdef V8_USE_EXTERNAL_STARTUP_DATA v8::StartupData natives; v8::StartupData snapshot; InitializeV8ForPDFium(options.exe_path, options.bin_directory, &natives, &snapshot, &platform); #else // V8_USE_EXTERNAL_STARTUP_DATA InitializeV8ForPDFium(&platform); #endif // V8_USE_EXTERNAL_STARTUP_DATA #endif // PDF_ENABLE_V8 FPDF_LIBRARY_CONFIG config; config.version = 2; config.m_pUserFontPaths = nullptr; config.m_pIsolate = nullptr; config.m_v8EmbedderSlot = 0; const char* path_array[2]; if (!options.font_directory.empty()) { path_array[0] = options.font_directory.c_str(); path_array[1] = nullptr; config.m_pUserFontPaths = path_array; } FPDF_InitLibraryWithConfig(&config); UNSUPPORT_INFO unsuppored_info; memset(&unsuppored_info, '\0', sizeof(unsuppored_info)); unsuppored_info.version = 1; unsuppored_info.FSDK_UnSupport_Handler = ExampleUnsupportedHandler; FSDK_SetUnSpObjProcessHandler(&unsuppored_info); while (!files.empty()) { std::string filename = files.front(); files.pop_front(); size_t file_length = 0; std::unique_ptr<char, pdfium::FreeDeleter> file_contents = GetFileContents(filename.c_str(), &file_length); if (file_contents) RenderPdf(filename, file_contents.get(), file_length, options); } FPDF_DestroyLibrary(); #ifdef PDF_ENABLE_V8 v8::V8::ShutdownPlatform(); delete platform; #endif // PDF_ENABLE_V8 return 0; }