pdfium_test.cc revision 33357cad1fd1321a2b38d2963e2585f27ce980a2 
1// Copyright (c) 2010 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include <limits.h>
6#include <stdio.h>
7#include <stdlib.h>
8#include <string.h>
9
10#include <map>
11#include <sstream>
12#include <string>
13#include <utility>
14#include <vector>
15
16#if defined PDF_ENABLE_SKIA && !defined _SKIA_SUPPORT_
17#define _SKIA_SUPPORT_
18#endif
19
20#include "core/fdrm/crypto/fx_crypt.h"
21#include "public/fpdf_dataavail.h"
22#include "public/fpdf_edit.h"
23#include "public/fpdf_ext.h"
24#include "public/fpdf_formfill.h"
25#include "public/fpdf_text.h"
26#include "public/fpdfview.h"
27#include "samples/image_diff_png.h"
28#include "testing/test_support.h"
29
30#ifdef _WIN32
31#include <io.h>
32#else
33#include <unistd.h>
34#endif
35
36#ifdef PDF_ENABLE_V8
37#include "v8/include/libplatform/libplatform.h"
38#include "v8/include/v8.h"
39#endif  // PDF_ENABLE_V8
40
41#ifdef PDF_ENABLE_SKIA
42#include "third_party/skia/include/core/SkPictureRecorder.h"
43#include "third_party/skia/include/core/SkStream.h"
44#endif
45
46#ifdef _WIN32
47#define access _access
48#define snprintf _snprintf
49#define R_OK 4
50#endif
51
52enum OutputFormat {
53  OUTPUT_NONE,
54  OUTPUT_TEXT,
55  OUTPUT_PPM,
56  OUTPUT_PNG,
57#ifdef _WIN32
58  OUTPUT_BMP,
59  OUTPUT_EMF,
60#endif
61#ifdef PDF_ENABLE_SKIA
62  OUTPUT_SKP,
63#endif
64};
65
66struct Options {
67  Options()
68      : show_config(false),
69        send_events(false),
70        pages(false),
71        md5(false),
72        output_format(OUTPUT_NONE) {}
73
74  bool show_config;
75  bool send_events;
76  bool pages;
77  bool md5;
78  OutputFormat output_format;
79  std::string scale_factor_as_string;
80  std::string exe_path;
81  std::string bin_directory;
82  std::string font_directory;
83  // 0-based page numbers to be rendered.
84  int first_page;
85  int last_page;
86};
87
88struct FPDF_FORMFILLINFO_PDFiumTest : public FPDF_FORMFILLINFO {
89  // Hold a map of the currently loaded pages in order to avoid them
90  // to get loaded twice.
91  std::map<int, FPDF_PAGE> loaded_pages;
92
93  // Hold a pointer of FPDF_FORMHANDLE so that PDFium app hooks can
94  // make use of it.
95  FPDF_FORMHANDLE form_handle;
96};
97
98struct AvailDeleter {
99  inline void operator()(FPDF_AVAIL avail) const { FPDFAvail_Destroy(avail); }
100};
101
102static FPDF_FORMFILLINFO_PDFiumTest* ToPDFiumTestFormFillInfo(
103    FPDF_FORMFILLINFO* form_fill_info) {
104  return static_cast<FPDF_FORMFILLINFO_PDFiumTest*>(form_fill_info);
105}
106
107static bool CheckDimensions(int stride, int width, int height) {
108  if (stride < 0 || width < 0 || height < 0)
109    return false;
110  if (height > 0 && width > INT_MAX / height)
111    return false;
112  return true;
113}
114
115static void OutputMD5Hash(const char* file_name, const char* buffer, int len) {
116  // Get the MD5 hash and write it to stdout.
117  uint8_t digest[16];
118  CRYPT_MD5Generate(reinterpret_cast<const uint8_t*>(buffer), len, digest);
119  printf("MD5:%s:", file_name);
120  for (int i = 0; i < 16; i++)
121    printf("%02x", digest[i]);
122  printf("\n");
123}
124
125static std::string WritePpm(const char* pdf_name,
126                            int num,
127                            const void* buffer_void,
128                            int stride,
129                            int width,
130                            int height) {
131  const char* buffer = reinterpret_cast<const char*>(buffer_void);
132
133  if (!CheckDimensions(stride, width, height))
134    return "";
135
136  int out_len = width * height;
137  if (out_len > INT_MAX / 3)
138    return "";
139  out_len *= 3;
140
141  char filename[256];
142  snprintf(filename, sizeof(filename), "%s.%d.ppm", pdf_name, num);
143  FILE* fp = fopen(filename, "wb");
144  if (!fp)
145    return "";
146  fprintf(fp, "P6\n# PDF test render\n%d %d\n255\n", width, height);
147  // Source data is B, G, R, unused.
148  // Dest data is R, G, B.
149  std::vector<char> result(out_len);
150  for (int h = 0; h < height; ++h) {
151    const char* src_line = buffer + (stride * h);
152    char* dest_line = result.data() + (width * h * 3);
153    for (int w = 0; w < width; ++w) {
154      // R
155      dest_line[w * 3] = src_line[(w * 4) + 2];
156      // G
157      dest_line[(w * 3) + 1] = src_line[(w * 4) + 1];
158      // B
159      dest_line[(w * 3) + 2] = src_line[w * 4];
160    }
161  }
162  fwrite(result.data(), out_len, 1, fp);
163  fclose(fp);
164  return std::string(filename);
165}
166
167void WriteText(FPDF_PAGE page, const char* pdf_name, int num) {
168  char filename[256];
169  int chars_formatted =
170      snprintf(filename, sizeof(filename), "%s.%d.txt", pdf_name, num);
171  if (chars_formatted < 0 ||
172      static_cast<size_t>(chars_formatted) >= sizeof(filename)) {
173    fprintf(stderr, "Filename %s is too long\n", filename);
174    return;
175  }
176
177  FILE* fp = fopen(filename, "w");
178  if (!fp) {
179    fprintf(stderr, "Failed to open %s for output\n", filename);
180    return;
181  }
182
183  // Output in UTF32-LE.
184  uint32_t bom = 0x0000FEFF;
185  fwrite(&bom, sizeof(bom), 1, fp);
186
187  FPDF_TEXTPAGE textpage = FPDFText_LoadPage(page);
188  for (int i = 0; i < FPDFText_CountChars(textpage); i++) {
189    uint32_t c = FPDFText_GetUnicode(textpage, i);
190    fwrite(&c, sizeof(c), 1, fp);
191  }
192
193  FPDFText_ClosePage(textpage);
194
195  (void)fclose(fp);
196}
197
198static std::string WritePng(const char* pdf_name,
199                            int num,
200                            const void* buffer_void,
201                            int stride,
202                            int width,
203                            int height) {
204  if (!CheckDimensions(stride, width, height))
205    return "";
206
207  std::vector<unsigned char> png_encoding;
208  const unsigned char* buffer = static_cast<const unsigned char*>(buffer_void);
209  if (!image_diff_png::EncodeBGRAPNG(
210          buffer, width, height, stride, false, &png_encoding)) {
211    fprintf(stderr, "Failed to convert bitmap to PNG\n");
212    return "";
213  }
214
215  char filename[256];
216  int chars_formatted = snprintf(
217      filename, sizeof(filename), "%s.%d.png", pdf_name, num);
218  if (chars_formatted < 0 ||
219      static_cast<size_t>(chars_formatted) >= sizeof(filename)) {
220    fprintf(stderr, "Filename %s is too long\n", filename);
221    return "";
222  }
223
224  FILE* fp = fopen(filename, "wb");
225  if (!fp) {
226    fprintf(stderr, "Failed to open %s for output\n", filename);
227    return "";
228  }
229
230  size_t bytes_written = fwrite(
231      &png_encoding.front(), 1, png_encoding.size(), fp);
232  if (bytes_written != png_encoding.size())
233    fprintf(stderr, "Failed to write to  %s\n", filename);
234
235  (void)fclose(fp);
236  return std::string(filename);
237}
238
239#ifdef _WIN32
240static std::string WriteBmp(const char* pdf_name,
241                            int num,
242                            const void* buffer,
243                            int stride,
244                            int width,
245                            int height) {
246  if (!CheckDimensions(stride, width, height))
247    return "";
248
249  int out_len = stride * height;
250  if (out_len > INT_MAX / 3)
251    return "";
252
253  char filename[256];
254  snprintf(filename, sizeof(filename), "%s.%d.bmp", pdf_name, num);
255  FILE* fp = fopen(filename, "wb");
256  if (!fp)
257    return "";
258
259  BITMAPINFO bmi = {};
260  bmi.bmiHeader.biSize = sizeof(bmi) - sizeof(RGBQUAD);
261  bmi.bmiHeader.biWidth = width;
262  bmi.bmiHeader.biHeight = -height;  // top-down image
263  bmi.bmiHeader.biPlanes = 1;
264  bmi.bmiHeader.biBitCount = 32;
265  bmi.bmiHeader.biCompression = BI_RGB;
266  bmi.bmiHeader.biSizeImage = 0;
267
268  BITMAPFILEHEADER file_header = {};
269  file_header.bfType = 0x4d42;
270  file_header.bfSize = sizeof(file_header) + bmi.bmiHeader.biSize + out_len;
271  file_header.bfOffBits = file_header.bfSize - out_len;
272
273  fwrite(&file_header, sizeof(file_header), 1, fp);
274  fwrite(&bmi, bmi.bmiHeader.biSize, 1, fp);
275  fwrite(buffer, out_len, 1, fp);
276  fclose(fp);
277  return std::string(filename);
278}
279
280void WriteEmf(FPDF_PAGE page, const char* pdf_name, int num) {
281  int width = static_cast<int>(FPDF_GetPageWidth(page));
282  int height = static_cast<int>(FPDF_GetPageHeight(page));
283
284  char filename[256];
285  snprintf(filename, sizeof(filename), "%s.%d.emf", pdf_name, num);
286
287  HDC dc = CreateEnhMetaFileA(nullptr, filename, nullptr, nullptr);
288
289  HRGN rgn = CreateRectRgn(0, 0, width, height);
290  SelectClipRgn(dc, rgn);
291  DeleteObject(rgn);
292
293  SelectObject(dc, GetStockObject(NULL_PEN));
294  SelectObject(dc, GetStockObject(WHITE_BRUSH));
295  // If a PS_NULL pen is used, the dimensions of the rectangle are 1 pixel less.
296  Rectangle(dc, 0, 0, width + 1, height + 1);
297
298  FPDF_RenderPage(dc, page, 0, 0, width, height, 0,
299                  FPDF_ANNOT | FPDF_PRINTING | FPDF_NO_CATCH);
300
301  DeleteEnhMetaFile(CloseEnhMetaFile(dc));
302}
303#endif
304
305#ifdef PDF_ENABLE_SKIA
306static std::string WriteSkp(const char* pdf_name,
307                            int num,
308                            SkPictureRecorder* recorder) {
309  char filename[256];
310  int chars_formatted =
311      snprintf(filename, sizeof(filename), "%s.%d.skp", pdf_name, num);
312
313  if (chars_formatted < 0 ||
314      static_cast<size_t>(chars_formatted) >= sizeof(filename)) {
315    fprintf(stderr, "Filename %s is too long\n", filename);
316    return "";
317  }
318
319  sk_sp<SkPicture> picture(recorder->finishRecordingAsPicture());
320  SkFILEWStream wStream(filename);
321  picture->serialize(&wStream);
322  return std::string(filename);
323}
324#endif
325
326// These example JS platform callback handlers are entirely optional,
327// and exist here to show the flow of information from a document back
328// to the embedder.
329int ExampleAppAlert(IPDF_JSPLATFORM*,
330                    FPDF_WIDESTRING msg,
331                    FPDF_WIDESTRING title,
332                    int type,
333                    int icon) {
334  printf("%ls", GetPlatformWString(title).c_str());
335  if (icon || type)
336    printf("[icon=%d,type=%d]", icon, type);
337  printf(": %ls\n", GetPlatformWString(msg).c_str());
338  return 0;
339}
340
341int ExampleAppResponse(IPDF_JSPLATFORM*,
342                       FPDF_WIDESTRING question,
343                       FPDF_WIDESTRING title,
344                       FPDF_WIDESTRING default_value,
345                       FPDF_WIDESTRING label,
346                       FPDF_BOOL is_password,
347                       void* response,
348                       int length) {
349  printf("%ls: %ls, defaultValue=%ls, label=%ls, isPassword=%d, length=%d\n",
350         GetPlatformWString(title).c_str(),
351         GetPlatformWString(question).c_str(),
352         GetPlatformWString(default_value).c_str(),
353         GetPlatformWString(label).c_str(), is_password, length);
354
355  // UTF-16, always LE regardless of platform.
356  uint8_t* ptr = static_cast<uint8_t*>(response);
357  ptr[0] = 'N';
358  ptr[1] = 0;
359  ptr[2] = 'o';
360  ptr[3] = 0;
361  return 4;
362}
363
364void ExampleDocGotoPage(IPDF_JSPLATFORM*, int page_number) {
365  printf("Goto Page: %d\n", page_number);
366}
367
368void ExampleDocMail(IPDF_JSPLATFORM*,
369                    void* mailData,
370                    int length,
371                    FPDF_BOOL UI,
372                    FPDF_WIDESTRING To,
373                    FPDF_WIDESTRING Subject,
374                    FPDF_WIDESTRING CC,
375                    FPDF_WIDESTRING BCC,
376                    FPDF_WIDESTRING Msg) {
377  printf("Mail Msg: %d, to=%ls, cc=%ls, bcc=%ls, subject=%ls, body=%ls\n", UI,
378         GetPlatformWString(To).c_str(), GetPlatformWString(CC).c_str(),
379         GetPlatformWString(BCC).c_str(), GetPlatformWString(Subject).c_str(),
380         GetPlatformWString(Msg).c_str());
381}
382
383void ExampleUnsupportedHandler(UNSUPPORT_INFO*, int type) {
384  std::string feature = "Unknown";
385  switch (type) {
386    case FPDF_UNSP_DOC_XFAFORM:
387      feature = "XFA";
388      break;
389    case FPDF_UNSP_DOC_PORTABLECOLLECTION:
390      feature = "Portfolios_Packages";
391      break;
392    case FPDF_UNSP_DOC_ATTACHMENT:
393    case FPDF_UNSP_ANNOT_ATTACHMENT:
394      feature = "Attachment";
395      break;
396    case FPDF_UNSP_DOC_SECURITY:
397      feature = "Rights_Management";
398      break;
399    case FPDF_UNSP_DOC_SHAREDREVIEW:
400      feature = "Shared_Review";
401      break;
402    case FPDF_UNSP_DOC_SHAREDFORM_ACROBAT:
403    case FPDF_UNSP_DOC_SHAREDFORM_FILESYSTEM:
404    case FPDF_UNSP_DOC_SHAREDFORM_EMAIL:
405      feature = "Shared_Form";
406      break;
407    case FPDF_UNSP_ANNOT_3DANNOT:
408      feature = "3D";
409      break;
410    case FPDF_UNSP_ANNOT_MOVIE:
411      feature = "Movie";
412      break;
413    case FPDF_UNSP_ANNOT_SOUND:
414      feature = "Sound";
415      break;
416    case FPDF_UNSP_ANNOT_SCREEN_MEDIA:
417    case FPDF_UNSP_ANNOT_SCREEN_RICHMEDIA:
418      feature = "Screen";
419      break;
420    case FPDF_UNSP_ANNOT_SIG:
421      feature = "Digital_Signature";
422      break;
423  }
424  printf("Unsupported feature: %s.\n", feature.c_str());
425}
426
427bool ParseCommandLine(const std::vector<std::string>& args,
428                      Options* options,
429                      std::vector<std::string>* files) {
430  if (args.empty())
431    return false;
432
433  options->exe_path = args[0];
434  size_t cur_idx = 1;
435  for (; cur_idx < args.size(); ++cur_idx) {
436    const std::string& cur_arg = args[cur_idx];
437    if (cur_arg == "--show-config") {
438      options->show_config = true;
439    } else if (cur_arg == "--send-events") {
440      options->send_events = true;
441    } else if (cur_arg == "--ppm") {
442      if (options->output_format != OUTPUT_NONE) {
443        fprintf(stderr, "Duplicate or conflicting --ppm argument\n");
444        return false;
445      }
446      options->output_format = OUTPUT_PPM;
447    } else if (cur_arg == "--png") {
448      if (options->output_format != OUTPUT_NONE) {
449        fprintf(stderr, "Duplicate or conflicting --png argument\n");
450        return false;
451      }
452      options->output_format = OUTPUT_PNG;
453    } else if (cur_arg == "--txt") {
454      if (options->output_format != OUTPUT_NONE) {
455        fprintf(stderr, "Duplicate or conflicting --txt argument\n");
456        return false;
457      }
458      options->output_format = OUTPUT_TEXT;
459#ifdef PDF_ENABLE_SKIA
460    } else if (cur_arg == "--skp") {
461      if (options->output_format != OUTPUT_NONE) {
462        fprintf(stderr, "Duplicate or conflicting --skp argument\n");
463        return false;
464      }
465      options->output_format = OUTPUT_SKP;
466#endif
467    } else if (cur_arg.size() > 11 &&
468               cur_arg.compare(0, 11, "--font-dir=") == 0) {
469      if (!options->font_directory.empty()) {
470        fprintf(stderr, "Duplicate --font-dir argument\n");
471        return false;
472      }
473      options->font_directory = cur_arg.substr(11);
474#ifdef _WIN32
475    } else if (cur_arg == "--emf") {
476      if (options->output_format != OUTPUT_NONE) {
477        fprintf(stderr, "Duplicate or conflicting --emf argument\n");
478        return false;
479      }
480      options->output_format = OUTPUT_EMF;
481    } else if (cur_arg == "--bmp") {
482      if (options->output_format != OUTPUT_NONE) {
483        fprintf(stderr, "Duplicate or conflicting --bmp argument\n");
484        return false;
485      }
486      options->output_format = OUTPUT_BMP;
487#endif  // _WIN32
488
489#ifdef PDF_ENABLE_V8
490#ifdef V8_USE_EXTERNAL_STARTUP_DATA
491    } else if (cur_arg.size() > 10 &&
492               cur_arg.compare(0, 10, "--bin-dir=") == 0) {
493      if (!options->bin_directory.empty()) {
494        fprintf(stderr, "Duplicate --bin-dir argument\n");
495        return false;
496      }
497      options->bin_directory = cur_arg.substr(10);
498#endif  // V8_USE_EXTERNAL_STARTUP_DATA
499#endif  // PDF_ENABLE_V8
500
501    } else if (cur_arg.size() > 8 && cur_arg.compare(0, 8, "--scale=") == 0) {
502      if (!options->scale_factor_as_string.empty()) {
503        fprintf(stderr, "Duplicate --scale argument\n");
504        return false;
505      }
506      options->scale_factor_as_string = cur_arg.substr(8);
507    } else if (cur_arg.size() > 8 && cur_arg.compare(0, 8, "--pages=") == 0) {
508      if (options->pages) {
509        fprintf(stderr, "Duplicate --pages argument\n");
510        return false;
511      }
512      options->pages = true;
513      const std::string pages_string = cur_arg.substr(8);
514      size_t first_dash = pages_string.find("-");
515      if (first_dash == std::string::npos) {
516        std::stringstream(pages_string) >> options->first_page;
517        options->last_page = options->first_page;
518      } else {
519        std::stringstream(pages_string.substr(0, first_dash)) >>
520            options->first_page;
521        std::stringstream(pages_string.substr(first_dash + 1)) >>
522            options->last_page;
523      }
524    } else if (cur_arg == "--md5") {
525      options->md5 = true;
526    } else if (cur_arg.size() >= 2 && cur_arg[0] == '-' && cur_arg[1] == '-') {
527      fprintf(stderr, "Unrecognized argument %s\n", cur_arg.c_str());
528      return false;
529    } else {
530      break;
531    }
532  }
533  for (size_t i = cur_idx; i < args.size(); i++)
534    files->push_back(args[i]);
535
536  return true;
537}
538
539FPDF_BOOL Is_Data_Avail(FX_FILEAVAIL* avail, size_t offset, size_t size) {
540  return true;
541}
542
543void Add_Segment(FX_DOWNLOADHINTS* hints, size_t offset, size_t size) {}
544
545void SendPageEvents(const FPDF_FORMHANDLE& form,
546                    const FPDF_PAGE& page,
547                    const std::string& events) {
548  auto lines = StringSplit(events, '\n');
549  for (auto line : lines) {
550    auto command = StringSplit(line, '#');
551    if (command[0].empty())
552      continue;
553    auto tokens = StringSplit(command[0], ',');
554    if (tokens[0] == "keycode") {
555      if (tokens.size() == 2) {
556        int keycode = atoi(tokens[1].c_str());
557        FORM_OnKeyDown(form, page, keycode, 0);
558        FORM_OnKeyUp(form, page, keycode, 0);
559      } else {
560        fprintf(stderr, "keycode: bad args\n");
561      }
562    } else if (tokens[0] == "mousedown") {
563      if (tokens.size() == 4) {
564        int x = atoi(tokens[2].c_str());
565        int y = atoi(tokens[3].c_str());
566        if (tokens[1] == "left")
567          FORM_OnLButtonDown(form, page, 0, x, y);
568#ifdef PDF_ENABLE_XFA
569        else if (tokens[1] == "right")
570          FORM_OnRButtonDown(form, page, 0, x, y);
571#endif
572        else
573          fprintf(stderr, "mousedown: bad button name\n");
574      } else {
575        fprintf(stderr, "mousedown: bad args\n");
576      }
577    } else if (tokens[0] == "mouseup") {
578      if (tokens.size() == 4) {
579        int x = atoi(tokens[2].c_str());
580        int y = atoi(tokens[3].c_str());
581        if (tokens[1] == "left")
582          FORM_OnLButtonUp(form, page, 0, x, y);
583#ifdef PDF_ENABLE_XFA
584        else if (tokens[1] == "right")
585          FORM_OnRButtonUp(form, page, 0, x, y);
586#endif
587        else
588          fprintf(stderr, "mouseup: bad button name\n");
589      } else {
590        fprintf(stderr, "mouseup: bad args\n");
591      }
592    } else if (tokens[0] == "mousemove") {
593      if (tokens.size() == 3) {
594        int x = atoi(tokens[1].c_str());
595        int y = atoi(tokens[2].c_str());
596        FORM_OnMouseMove(form, page, 0, x, y);
597      } else {
598        fprintf(stderr, "mousemove: bad args\n");
599      }
600    } else {
601      fprintf(stderr, "Unrecognized event: %s\n", tokens[0].c_str());
602    }
603  }
604}
605
606FPDF_PAGE GetPageForIndex(FPDF_FORMFILLINFO* param,
607                          FPDF_DOCUMENT doc,
608                          int index) {
609  FPDF_FORMFILLINFO_PDFiumTest* form_fill_info =
610      ToPDFiumTestFormFillInfo(param);
611  auto& loaded_pages = form_fill_info->loaded_pages;
612
613  auto iter = loaded_pages.find(index);
614  if (iter != loaded_pages.end())
615    return iter->second;
616
617  FPDF_PAGE page = FPDF_LoadPage(doc, index);
618  if (!page)
619    return nullptr;
620
621  FPDF_FORMHANDLE& form_handle = form_fill_info->form_handle;
622
623  FORM_OnAfterLoadPage(page, form_handle);
624  FORM_DoPageAAction(page, form_handle, FPDFPAGE_AACTION_OPEN);
625
626  loaded_pages[index] = page;
627  return page;
628}
629
630bool RenderPage(const std::string& name,
631                FPDF_DOCUMENT doc,
632                FPDF_FORMHANDLE& form,
633                FPDF_FORMFILLINFO_PDFiumTest& form_fill_info,
634                const int page_index,
635                const Options& options,
636                const std::string& events) {
637  FPDF_PAGE page = GetPageForIndex(&form_fill_info, doc, page_index);
638  if (!page)
639    return false;
640
641  FPDF_TEXTPAGE text_page = FPDFText_LoadPage(page);
642
643  if (options.send_events)
644    SendPageEvents(form, page, events);
645
646  double scale = 1.0;
647  if (!options.scale_factor_as_string.empty())
648    std::stringstream(options.scale_factor_as_string) >> scale;
649
650  int width = static_cast<int>(FPDF_GetPageWidth(page) * scale);
651  int height = static_cast<int>(FPDF_GetPageHeight(page) * scale);
652  int alpha = FPDFPage_HasTransparency(page) ? 1 : 0;
653  FPDF_BITMAP bitmap = FPDFBitmap_Create(width, height, alpha);
654  if (bitmap) {
655    FPDF_DWORD fill_color = alpha ? 0x00000000 : 0xFFFFFFFF;
656    FPDFBitmap_FillRect(bitmap, 0, 0, width, height, fill_color);
657    FPDF_RenderPageBitmap(bitmap, page, 0, 0, width, height, 0, FPDF_ANNOT);
658
659    FPDF_FFLDraw(form, bitmap, page, 0, 0, width, height, 0, FPDF_ANNOT);
660    int stride = FPDFBitmap_GetStride(bitmap);
661    const char* buffer =
662        reinterpret_cast<const char*>(FPDFBitmap_GetBuffer(bitmap));
663
664    std::string&& image_file_name = "";
665    switch (options.output_format) {
666#ifdef _WIN32
667      case OUTPUT_BMP:
668        image_file_name =
669            WriteBmp(name.c_str(), page_index, buffer, stride, width, height);
670        break;
671
672      case OUTPUT_EMF:
673        WriteEmf(page, name.c_str(), page_index);
674        break;
675#endif
676      case OUTPUT_TEXT:
677        WriteText(page, name.c_str(), page_index);
678        break;
679
680      case OUTPUT_PNG:
681        image_file_name =
682            WritePng(name.c_str(), page_index, buffer, stride, width, height);
683        break;
684
685      case OUTPUT_PPM:
686        image_file_name =
687            WritePpm(name.c_str(), page_index, buffer, stride, width, height);
688        break;
689
690#ifdef PDF_ENABLE_SKIA
691      case OUTPUT_SKP: {
692        std::unique_ptr<SkPictureRecorder> recorder(
693            reinterpret_cast<SkPictureRecorder*>(
694                FPDF_RenderPageSkp(page, width, height)));
695        FPDF_FFLRecord(form, recorder.get(), page, 0, 0, width, height, 0, 0);
696        image_file_name = WriteSkp(name.c_str(), page_index, recorder.get());
697      } break;
698#endif
699      default:
700        break;
701    }
702
703    // Write the filename and the MD5 of the buffer to stdout if we wrote a
704    // file.
705    if (options.md5 && image_file_name != "")
706      OutputMD5Hash(image_file_name.c_str(), buffer, stride * height);
707
708    FPDFBitmap_Destroy(bitmap);
709  } else {
710    fprintf(stderr, "Page was too large to be rendered.\n");
711  }
712
713  form_fill_info.loaded_pages.erase(page_index);
714
715  FORM_DoPageAAction(page, form, FPDFPAGE_AACTION_CLOSE);
716  FORM_OnBeforeClosePage(page, form);
717  FPDFText_ClosePage(text_page);
718  FPDF_ClosePage(page);
719  return !!bitmap;
720}
721
722void RenderPdf(const std::string& name,
723               const char* pBuf,
724               size_t len,
725               const Options& options,
726               const std::string& events) {
727  IPDF_JSPLATFORM platform_callbacks;
728  memset(&platform_callbacks, '\0', sizeof(platform_callbacks));
729  platform_callbacks.version = 3;
730  platform_callbacks.app_alert = ExampleAppAlert;
731  platform_callbacks.app_response = ExampleAppResponse;
732  platform_callbacks.Doc_gotoPage = ExampleDocGotoPage;
733  platform_callbacks.Doc_mail = ExampleDocMail;
734
735  FPDF_FORMFILLINFO_PDFiumTest form_callbacks = {};
736#ifdef PDF_ENABLE_XFA
737  form_callbacks.version = 2;
738#else   // PDF_ENABLE_XFA
739  form_callbacks.version = 1;
740#endif  // PDF_ENABLE_XFA
741  form_callbacks.FFI_GetPage = GetPageForIndex;
742  form_callbacks.m_pJsPlatform = &platform_callbacks;
743
744  TestLoader loader(pBuf, len);
745  FPDF_FILEACCESS file_access;
746  memset(&file_access, '\0', sizeof(file_access));
747  file_access.m_FileLen = static_cast<unsigned long>(len);
748  file_access.m_GetBlock = TestLoader::GetBlock;
749  file_access.m_Param = &loader;
750
751  FX_FILEAVAIL file_avail;
752  memset(&file_avail, '\0', sizeof(file_avail));
753  file_avail.version = 1;
754  file_avail.IsDataAvail = Is_Data_Avail;
755
756  FX_DOWNLOADHINTS hints;
757  memset(&hints, '\0', sizeof(hints));
758  hints.version = 1;
759  hints.AddSegment = Add_Segment;
760
761  FPDF_DOCUMENT doc;
762  int nRet = PDF_DATA_NOTAVAIL;
763  bool bIsLinearized = false;
764  FPDF_AVAIL pdf_avail = FPDFAvail_Create(&file_avail, &file_access);
765  std::unique_ptr<void, AvailDeleter> scoped_pdf_avail_deleter(pdf_avail);
766
767  if (FPDFAvail_IsLinearized(pdf_avail) == PDF_LINEARIZED) {
768    doc = FPDFAvail_GetDocument(pdf_avail, nullptr);
769    if (doc) {
770      while (nRet == PDF_DATA_NOTAVAIL)
771        nRet = FPDFAvail_IsDocAvail(pdf_avail, &hints);
772
773      if (nRet == PDF_DATA_ERROR) {
774        fprintf(stderr, "Unknown error in checking if doc was available.\n");
775        FPDF_CloseDocument(doc);
776        return;
777      }
778      nRet = FPDFAvail_IsFormAvail(pdf_avail, &hints);
779      if (nRet == PDF_FORM_ERROR || nRet == PDF_FORM_NOTAVAIL) {
780        fprintf(stderr,
781                "Error %d was returned in checking if form was available.\n",
782                nRet);
783        FPDF_CloseDocument(doc);
784        return;
785      }
786      bIsLinearized = true;
787    }
788  } else {
789    doc = FPDF_LoadCustomDocument(&file_access, nullptr);
790  }
791
792  if (!doc) {
793    unsigned long err = FPDF_GetLastError();
794    fprintf(stderr, "Load pdf docs unsuccessful: ");
795    switch (err) {
796      case FPDF_ERR_SUCCESS:
797        fprintf(stderr, "Success");
798        break;
799      case FPDF_ERR_UNKNOWN:
800        fprintf(stderr, "Unknown error");
801        break;
802      case FPDF_ERR_FILE:
803        fprintf(stderr, "File not found or could not be opened");
804        break;
805      case FPDF_ERR_FORMAT:
806        fprintf(stderr, "File not in PDF format or corrupted");
807        break;
808      case FPDF_ERR_PASSWORD:
809        fprintf(stderr, "Password required or incorrect password");
810        break;
811      case FPDF_ERR_SECURITY:
812        fprintf(stderr, "Unsupported security scheme");
813        break;
814      case FPDF_ERR_PAGE:
815        fprintf(stderr, "Page not found or content error");
816        break;
817      default:
818        fprintf(stderr, "Unknown error %ld", err);
819    }
820    fprintf(stderr, ".\n");
821
822    return;
823  }
824
825  (void)FPDF_GetDocPermissions(doc);
826
827  FPDF_FORMHANDLE form = FPDFDOC_InitFormFillEnvironment(doc, &form_callbacks);
828  form_callbacks.form_handle = form;
829
830#ifdef PDF_ENABLE_XFA
831  int doc_type = DOCTYPE_PDF;
832  if (FPDF_HasXFAField(doc, &doc_type) && doc_type != DOCTYPE_PDF &&
833      !FPDF_LoadXFA(doc)) {
834    fprintf(stderr, "LoadXFA unsuccessful, continuing anyway.\n");
835  }
836#endif  // PDF_ENABLE_XFA
837  FPDF_SetFormFieldHighlightColor(form, 0, 0xFFE4DD);
838  FPDF_SetFormFieldHighlightAlpha(form, 100);
839
840  FORM_DoDocumentJSAction(form);
841  FORM_DoDocumentOpenAction(form);
842
843  int page_count = FPDF_GetPageCount(doc);
844  int rendered_pages = 0;
845  int bad_pages = 0;
846  int first_page = options.pages ? options.first_page : 0;
847  int last_page = options.pages ? options.last_page + 1 : page_count;
848  for (int i = first_page; i < last_page; ++i) {
849    if (bIsLinearized) {
850      nRet = PDF_DATA_NOTAVAIL;
851      while (nRet == PDF_DATA_NOTAVAIL)
852        nRet = FPDFAvail_IsPageAvail(pdf_avail, i, &hints);
853
854      if (nRet == PDF_DATA_ERROR) {
855        fprintf(stderr, "Unknown error in checking if page %d is available.\n",
856                i);
857        FPDFDOC_ExitFormFillEnvironment(form);
858        FPDF_CloseDocument(doc);
859        return;
860      }
861    }
862    if (RenderPage(name, doc, form, form_callbacks, i, options, events))
863      ++rendered_pages;
864    else
865      ++bad_pages;
866  }
867
868  FORM_DoDocumentAAction(form, FPDFDOC_AACTION_WC);
869
870  FPDFDOC_ExitFormFillEnvironment(form);
871  FPDF_CloseDocument(doc);
872
873  fprintf(stderr, "Rendered %d pages.\n", rendered_pages);
874  if (bad_pages)
875    fprintf(stderr, "Skipped %d bad pages.\n", bad_pages);
876}
877
878static void ShowConfig() {
879  std::string config;
880  std::string maybe_comma;
881#if PDF_ENABLE_V8
882  config.append(maybe_comma);
883  config.append("V8");
884  maybe_comma = ",";
885#endif  // PDF_ENABLE_V8
886#ifdef V8_USE_EXTERNAL_STARTUP_DATA
887  config.append(maybe_comma);
888  config.append("V8_EXTERNAL");
889  maybe_comma = ",";
890#endif  // V8_USE_EXTERNAL_STARTUP_DATA
891#ifdef PDF_ENABLE_XFA
892  config.append(maybe_comma);
893  config.append("XFA");
894  maybe_comma = ",";
895#endif  // PDF_ENABLE_XFA
896#ifdef PDF_ENABLE_ASAN
897  config.append(maybe_comma);
898  config.append("ASAN");
899  maybe_comma = ",";
900#endif  // PDF_ENABLE_ASAN
901  printf("%s\n", config.c_str());
902}
903
904static const char kUsageString[] =
905    "Usage: pdfium_test [OPTION] [FILE]...\n"
906    "  --show-config     - print build options and exit\n"
907    "  --send-events     - send input described by .evt file\n"
908    "  --bin-dir=<path>  - override path to v8 external data\n"
909    "  --font-dir=<path> - override path to external fonts\n"
910    "  --scale=<number>  - scale output size by number (e.g. 0.5)\n"
911    "  --pages=<number>(-<number>) - only render the given 0-based page(s)\n"
912#ifdef _WIN32
913    "  --bmp - write page images <pdf-name>.<page-number>.bmp\n"
914    "  --emf - write page meta files <pdf-name>.<page-number>.emf\n"
915#endif  // _WIN32
916    "  --txt - write page text in UTF32-LE <pdf-name>.<page-number>.txt\n"
917    "  --png - write page images <pdf-name>.<page-number>.png\n"
918    "  --ppm - write page images <pdf-name>.<page-number>.ppm\n"
919#ifdef PDF_ENABLE_SKIA
920    "  --skp - write page images <pdf-name>.<page-number>.skp\n"
921#endif
922    "  --md5 - write output image paths and their md5 hashes to stdout.\n"
923    "";
924
925int main(int argc, const char* argv[]) {
926  std::vector<std::string> args(argv, argv + argc);
927  Options options;
928  std::vector<std::string> files;
929  if (!ParseCommandLine(args, &options, &files)) {
930    fprintf(stderr, "%s", kUsageString);
931    return 1;
932  }
933
934  if (options.show_config) {
935    ShowConfig();
936    return 0;
937  }
938
939  if (files.empty()) {
940    fprintf(stderr, "No input files.\n");
941    return 1;
942  }
943
944#ifdef PDF_ENABLE_V8
945  v8::Platform* platform;
946#ifdef V8_USE_EXTERNAL_STARTUP_DATA
947  v8::StartupData natives;
948  v8::StartupData snapshot;
949  InitializeV8ForPDFium(options.exe_path, options.bin_directory, &natives,
950                        &snapshot, &platform);
951#else   // V8_USE_EXTERNAL_STARTUP_DATA
952  InitializeV8ForPDFium(options.exe_path, &platform);
953#endif  // V8_USE_EXTERNAL_STARTUP_DATA
954#endif  // PDF_ENABLE_V8
955
956  FPDF_LIBRARY_CONFIG config;
957  config.version = 2;
958  config.m_pUserFontPaths = nullptr;
959  config.m_pIsolate = nullptr;
960  config.m_v8EmbedderSlot = 0;
961
962  const char* path_array[2];
963  if (!options.font_directory.empty()) {
964    path_array[0] = options.font_directory.c_str();
965    path_array[1] = nullptr;
966    config.m_pUserFontPaths = path_array;
967  }
968  FPDF_InitLibraryWithConfig(&config);
969
970  UNSUPPORT_INFO unsupported_info;
971  memset(&unsupported_info, '\0', sizeof(unsupported_info));
972  unsupported_info.version = 1;
973  unsupported_info.FSDK_UnSupport_Handler = ExampleUnsupportedHandler;
974
975  FSDK_SetUnSpObjProcessHandler(&unsupported_info);
976
977  for (const std::string& filename : files) {
978    size_t file_length = 0;
979    std::unique_ptr<char, pdfium::FreeDeleter> file_contents =
980        GetFileContents(filename.c_str(), &file_length);
981    if (!file_contents)
982      continue;
983    fprintf(stderr, "Rendering PDF file %s.\n", filename.c_str());
984    std::string events;
985    if (options.send_events) {
986      std::string event_filename = filename;
987      size_t event_length = 0;
988      size_t extension_pos = event_filename.find(".pdf");
989      if (extension_pos != std::string::npos) {
990        event_filename.replace(extension_pos, 4, ".evt");
991        if (access(event_filename.c_str(), R_OK) == 0) {
992          fprintf(stderr, "Using event file %s.\n", event_filename.c_str());
993          std::unique_ptr<char, pdfium::FreeDeleter> event_contents =
994              GetFileContents(event_filename.c_str(), &event_length);
995          if (event_contents) {
996            fprintf(stderr, "Sending events from: %s\n",
997                    event_filename.c_str());
998            events = std::string(event_contents.get(), event_length);
999          }
1000        }
1001      }
1002    }
1003    RenderPdf(filename, file_contents.get(), file_length, options, events);
1004  }
1005
1006  FPDF_DestroyLibrary();
1007#ifdef PDF_ENABLE_V8
1008  v8::V8::ShutdownPlatform();
1009  delete platform;
1010
1011#ifdef V8_USE_EXTERNAL_STARTUP_DATA
1012  free(const_cast<char*>(natives.data));
1013  free(const_cast<char*>(snapshot.data));
1014#endif  // V8_USE_EXTERNAL_STARTUP_DATA
1015#endif  // PDF_ENABLE_V8
1016
1017  return 0;
1018}
1019