| //======================================================================== |
| // |
| // pdftohtml.cc |
| // |
| // |
| // Copyright 1999-2000 G. Ovtcharov |
| //======================================================================== |
| |
| //======================================================================== |
| // |
| // Modified under the Poppler project - http://poppler.freedesktop.org |
| // |
| // All changes made under the Poppler project to this file are licensed |
| // under GPL version 2 or later |
| // |
| // Copyright (C) 2007-2008, 2010, 2012, 2015-2020, 2022 Albert Astals Cid <aacid@kde.org> |
| // Copyright (C) 2010 Hib Eris <hib@hiberis.nl> |
| // Copyright (C) 2010 Mike Slegeir <tehpola@yahoo.com> |
| // Copyright (C) 2010, 2013 Suzuki Toshiya <mpsuzuki@hiroshima-u.ac.jp> |
| // Copyright (C) 2010 OSSD CDAC Mumbai by Leena Chourey (leenac@cdacmumbai.in) and Onkar Potdar (onkar@cdacmumbai.in) |
| // Copyright (C) 2011 Steven Murdoch <Steven.Murdoch@cl.cam.ac.uk> |
| // Copyright (C) 2012 Igor Slepchin <igor.redhat@gmail.com> |
| // Copyright (C) 2012 Ihar Filipau <thephilips@gmail.com> |
| // Copyright (C) 2012 Luis Parravicini <lparravi@gmail.com> |
| // Copyright (C) 2014 Pino Toscano <pino@kde.org> |
| // Copyright (C) 2015 William Bader <williambader@hotmail.com> |
| // Copyright (C) 2017, 2021 Adrian Johnson <ajohnson@redneon.com> |
| // Copyright (C) 2018 Klarälvdalens Datakonsult AB, a KDAB Group company, <info@kdab.com>. Work sponsored by the LiMux project of the city of Munich |
| // Copyright (C) 2018 Thibaut Brard <thibaut.brard@gmail.com> |
| // Copyright (C) 2018 Adam Reichold <adam.reichold@t-online.de> |
| // Copyright (C) 2019, 2021, 2024 Oliver Sander <oliver.sander@tu-dresden.de> |
| // Copyright (C) 2021 Hubert Figuiere <hub@figuiere.net> |
| // Copyright (C) 2024 g10 Code GmbH, Author: Sune Stolborg Vuorela <sune@vuorela.dk> |
| // |
| // To see a description of the changes please see the Changelog file that |
| // came with your tarball or type make ChangeLog if you are building from git |
| // |
| //======================================================================== |
| |
| #include "config.h" |
| #include <poppler-config.h> |
| #include <cstdio> |
| #include <cstdlib> |
| #include <cstddef> |
| #include <cstring> |
| #ifdef HAVE_DIRENT_H |
| # include <dirent.h> |
| #endif |
| #include <ctime> |
| #include "parseargs.h" |
| #include "goo/GooString.h" |
| #include "goo/gbase64.h" |
| #include "goo/gbasename.h" |
| #include "goo/gmem.h" |
| #include "Object.h" |
| #include "Stream.h" |
| #include "Array.h" |
| #include "Dict.h" |
| #include "XRef.h" |
| #include "Catalog.h" |
| #include "Page.h" |
| #include "Outline.h" |
| #include "PDFDoc.h" |
| #include "PDFDocFactory.h" |
| #include "HtmlOutputDev.h" |
| #include "SplashOutputDev.h" |
| #include "splash/SplashBitmap.h" |
| #include "GlobalParams.h" |
| #include "PDFDocEncoding.h" |
| #include "Error.h" |
| #include "DateInfo.h" |
| #include "goo/gfile.h" |
| #include "Win32Console.h" |
| #include "InMemoryFile.h" |
| #include "UTF.h" |
| |
| static int firstPage = 1; |
| static int lastPage = 0; |
| static bool rawOrder = true; |
| bool printCommands = true; |
| static bool printHelp = false; |
| bool printHtml = false; |
| bool complexMode = false; |
| bool singleHtml = false; // singleHtml |
| bool dataUrls = false; |
| bool ignore = false; |
| static char extension[5] = "png"; |
| static double scale = 1.5; |
| bool noframes = false; |
| bool stout = false; |
| bool xml = false; |
| bool noRoundedCoordinates = false; |
| static bool errQuiet = false; |
| static bool noDrm = false; |
| double wordBreakThreshold = 10; // 10%, below converted into a coefficient - 0.1 |
| |
| bool showHidden = false; |
| bool noMerge = false; |
| bool fontFullName = false; |
| static char ownerPassword[33] = ""; |
| static char userPassword[33] = ""; |
| static bool printVersion = false; |
| |
| static std::unique_ptr<GooString> getInfoString(Dict *infoDict, const char *key); |
| static GooString *getInfoDate(Dict *infoDict, const char *key); |
| |
| static char textEncName[128] = ""; |
| |
| static const ArgDesc argDesc[] = { { "-f", argInt, &firstPage, 0, "first page to convert" }, |
| { "-l", argInt, &lastPage, 0, "last page to convert" }, |
| /*{"-raw", argFlag, &rawOrder, 0, |
| "keep strings in content stream order"},*/ |
| { "-q", argFlag, &errQuiet, 0, "don't print any messages or errors" }, |
| { "-h", argFlag, &printHelp, 0, "print usage information" }, |
| { "-?", argFlag, &printHelp, 0, "print usage information" }, |
| { "-help", argFlag, &printHelp, 0, "print usage information" }, |
| { "--help", argFlag, &printHelp, 0, "print usage information" }, |
| { "-p", argFlag, &printHtml, 0, "exchange .pdf links by .html" }, |
| { "-c", argFlag, &complexMode, 0, "generate complex document" }, |
| { "-s", argFlag, &singleHtml, 0, "generate single document that includes all pages" }, |
| #ifdef HAVE_IN_MEMORY_FILE |
| { "-dataurls", argFlag, &dataUrls, 0, "use data URLs instead of external images in HTML" }, |
| #endif |
| { "-i", argFlag, &ignore, 0, "ignore images" }, |
| { "-noframes", argFlag, &noframes, 0, "generate no frames" }, |
| { "-stdout", argFlag, &stout, 0, "use standard output" }, |
| { "-zoom", argFP, &scale, 0, "zoom the pdf document (default 1.5)" }, |
| { "-xml", argFlag, &xml, 0, "output for XML post-processing" }, |
| { "-noroundcoord", argFlag, &noRoundedCoordinates, 0, "do not round coordinates (with XML output only)" }, |
| { "-hidden", argFlag, &showHidden, 0, "output hidden text" }, |
| { "-nomerge", argFlag, &noMerge, 0, "do not merge paragraphs" }, |
| { "-enc", argString, textEncName, sizeof(textEncName), "output text encoding name" }, |
| { "-fmt", argString, extension, sizeof(extension), "image file format for Splash output (png or jpg)" }, |
| { "-v", argFlag, &printVersion, 0, "print copyright and version info" }, |
| { "-opw", argString, ownerPassword, sizeof(ownerPassword), "owner password (for encrypted files)" }, |
| { "-upw", argString, userPassword, sizeof(userPassword), "user password (for encrypted files)" }, |
| { "-nodrm", argFlag, &noDrm, 0, "override document DRM settings" }, |
| { "-wbt", argFP, &wordBreakThreshold, 0, "word break threshold (default 10 percent)" }, |
| { "-fontfullname", argFlag, &fontFullName, 0, "outputs font full name" }, |
| {} }; |
| |
| class SplashOutputDevNoText : public SplashOutputDev |
| { |
| public: |
| SplashOutputDevNoText(SplashColorMode colorModeA, int bitmapRowPadA, bool reverseVideoA, SplashColorPtr paperColorA, bool bitmapTopDownA = true) |
| : SplashOutputDev(colorModeA, bitmapRowPadA, reverseVideoA, paperColorA, bitmapTopDownA) { } |
| ~SplashOutputDevNoText() override; |
| |
| void drawChar(GfxState *state, double x, double y, double dx, double dy, double originX, double originY, CharCode code, int nBytes, const Unicode *u, int uLen) override { } |
| bool beginType3Char(GfxState *state, double x, double y, double dx, double dy, CharCode code, const Unicode *u, int uLen) override { return false; } |
| void endType3Char(GfxState *state) override { } |
| void beginTextObject(GfxState *state) override { } |
| void endTextObject(GfxState *state) override { } |
| bool interpretType3Chars() override { return false; } |
| }; |
| |
| SplashOutputDevNoText::~SplashOutputDevNoText() = default; |
| |
| int main(int argc, char *argv[]) |
| { |
| std::unique_ptr<PDFDoc> doc; |
| GooString *fileName = nullptr; |
| std::unique_ptr<GooString> docTitle; |
| std::unique_ptr<GooString> author; |
| std::unique_ptr<GooString> keywords; |
| std::unique_ptr<GooString> subject; |
| GooString *date = nullptr; |
| GooString *htmlFileName = nullptr; |
| HtmlOutputDev *htmlOut = nullptr; |
| SplashOutputDev *splashOut = nullptr; |
| bool doOutline; |
| bool ok; |
| std::optional<GooString> ownerPW, userPW; |
| Object info; |
| int exit_status = EXIT_FAILURE; |
| |
| Win32Console win32Console(&argc, &argv); |
| // parse args |
| ok = parseArgs(argDesc, &argc, argv); |
| if (!ok || argc < 2 || argc > 3 || printHelp || printVersion) { |
| fprintf(stderr, "pdftohtml version %s\n", PACKAGE_VERSION); |
| fprintf(stderr, "%s\n", popplerCopyright); |
| fprintf(stderr, "%s\n", "Copyright 1999-2003 Gueorgui Ovtcharov and Rainer Dorsch"); |
| fprintf(stderr, "%s\n\n", xpdfCopyright); |
| if (!printVersion) { |
| printUsage("pdftohtml", "<PDF-file> [<html-file> <xml-file>]", argDesc); |
| } |
| exit(printHelp || printVersion ? 0 : 1); |
| } |
| |
| // init error file |
| // errorInit(); |
| |
| // read config file |
| globalParams = std::make_unique<GlobalParams>(); |
| |
| if (errQuiet) { |
| globalParams->setErrQuiet(errQuiet); |
| printCommands = false; // I'm not 100% what is the difference between them |
| } |
| |
| if (textEncName[0]) { |
| globalParams->setTextEncoding(textEncName); |
| if (!globalParams->getTextEncoding()) { |
| goto error; |
| } |
| } |
| |
| // convert from user-friendly percents into a coefficient |
| wordBreakThreshold /= 100.0; |
| |
| // open PDF file |
| if (ownerPassword[0]) { |
| ownerPW = GooString(ownerPassword); |
| } |
| if (userPassword[0]) { |
| userPW = GooString(userPassword); |
| } |
| |
| fileName = new GooString(argv[1]); |
| |
| if (fileName->cmp("-") == 0) { |
| delete fileName; |
| fileName = new GooString("fd://0"); |
| } |
| |
| doc = PDFDocFactory().createPDFDoc(*fileName, ownerPW, userPW); |
| |
| if (!doc->isOk()) { |
| goto error; |
| } |
| |
| // check for copy permission |
| if (!doc->okToCopy()) { |
| if (!noDrm) { |
| error(errNotAllowed, -1, "Copying of text from this document is not allowed."); |
| goto error; |
| } |
| fprintf(stderr, "Document has copy-protection bit set.\n"); |
| } |
| |
| // construct text file name |
| if (argc == 3) { |
| GooString *tmp = new GooString(argv[2]); |
| if (!xml) { |
| if (tmp->getLength() >= 5) { |
| const char *p = tmp->c_str() + tmp->getLength() - 5; |
| if (!strcmp(p, ".html") || !strcmp(p, ".HTML")) { |
| htmlFileName = new GooString(tmp->c_str(), tmp->getLength() - 5); |
| } |
| } |
| } else { |
| if (tmp->getLength() >= 4) { |
| const char *p = tmp->c_str() + tmp->getLength() - 4; |
| if (!strcmp(p, ".xml") || !strcmp(p, ".XML")) { |
| htmlFileName = new GooString(tmp->c_str(), tmp->getLength() - 4); |
| } |
| } |
| } |
| if (!htmlFileName) { |
| htmlFileName = new GooString(tmp); |
| } |
| delete tmp; |
| } else if (fileName->cmp("fd://0") == 0) { |
| error(errCommandLine, -1, "You have to provide an output filename when reading from stdin."); |
| goto error; |
| } else { |
| const char *p = fileName->c_str() + fileName->getLength() - 4; |
| if (!strcmp(p, ".pdf") || !strcmp(p, ".PDF")) { |
| htmlFileName = new GooString(fileName->c_str(), fileName->getLength() - 4); |
| } else { |
| htmlFileName = fileName->copy(); |
| } |
| // htmlFileName->append(".html"); |
| } |
| |
| if (scale > 3.0) { |
| scale = 3.0; |
| } |
| if (scale < 0.5) { |
| scale = 0.5; |
| } |
| |
| if (complexMode) { |
| // noframes=false; |
| stout = false; |
| } |
| |
| if (stout) { |
| noframes = true; |
| complexMode = false; |
| } |
| |
| if (xml) { |
| complexMode = true; |
| singleHtml = false; |
| noframes = true; |
| noMerge = true; |
| } |
| |
| // get page range |
| if (firstPage < 1) { |
| firstPage = 1; |
| } |
| if (lastPage < 1 || lastPage > doc->getNumPages()) { |
| lastPage = doc->getNumPages(); |
| } |
| if (lastPage < firstPage) { |
| error(errCommandLine, -1, "Wrong page range given: the first page ({0:d}) can not be after the last page ({1:d}).", firstPage, lastPage); |
| goto error; |
| } |
| |
| info = doc->getDocInfo(); |
| if (info.isDict()) { |
| docTitle = getInfoString(info.getDict(), "Title"); |
| author = getInfoString(info.getDict(), "Author"); |
| keywords = getInfoString(info.getDict(), "Keywords"); |
| subject = getInfoString(info.getDict(), "Subject"); |
| date = getInfoDate(info.getDict(), "ModDate"); |
| if (!date) { |
| date = getInfoDate(info.getDict(), "CreationDate"); |
| } |
| } |
| if (!docTitle) { |
| docTitle = std::make_unique<GooString>(htmlFileName); |
| } |
| |
| if (!singleHtml) { |
| rawOrder = complexMode; // todo: figure out what exactly rawOrder do :) |
| } else { |
| rawOrder = singleHtml; |
| } |
| |
| doOutline = doc->getOutline()->getItems() != nullptr; |
| // write text file |
| htmlOut = new HtmlOutputDev(doc->getCatalog(), htmlFileName->c_str(), docTitle->c_str(), author ? author->c_str() : nullptr, keywords ? keywords->c_str() : nullptr, subject ? subject->c_str() : nullptr, date ? date->c_str() : nullptr, |
| rawOrder, firstPage, doOutline); |
| if (date) { |
| delete date; |
| } |
| |
| if ((complexMode || singleHtml) && !xml && !ignore) { |
| // White paper color |
| SplashColor color; |
| color[0] = color[1] = color[2] = 255; |
| // If the user specified "jpg" use JPEG, otherwise PNG |
| SplashImageFileFormat format = strcmp(extension, "jpg") ? splashFormatPng : splashFormatJpeg; |
| |
| splashOut = new SplashOutputDevNoText(splashModeRGB8, 4, false, color); |
| splashOut->startDoc(doc.get()); |
| |
| for (int pg = firstPage; pg <= lastPage; ++pg) { |
| InMemoryFile imf; |
| doc->displayPage(splashOut, pg, 72 * scale, 72 * scale, 0, true, false, false); |
| SplashBitmap *bitmap = splashOut->getBitmap(); |
| |
| const std::unique_ptr<GooString> imgFileName = GooString::format("{0:s}{1:03d}.{2:s}", htmlFileName->c_str(), pg, extension); |
| auto f1 = dataUrls ? imf.open("wb") : fopen(imgFileName->c_str(), "wb"); |
| if (!f1) { |
| fprintf(stderr, "Could not open %s\n", imgFileName->c_str()); |
| continue; |
| } |
| bitmap->writeImgFile(format, f1, 72 * scale, 72 * scale); |
| fclose(f1); |
| if (dataUrls) { |
| htmlOut->addBackgroundImage(std::string((format == splashFormatJpeg) ? "data:image/jpeg;base64," : "data:image/png;base64,") + gbase64Encode(imf.getBuffer())); |
| } else { |
| htmlOut->addBackgroundImage(gbasename(imgFileName->c_str())); |
| } |
| } |
| |
| delete splashOut; |
| } |
| |
| if (htmlOut->isOk()) { |
| doc->displayPages(htmlOut, firstPage, lastPage, 72 * scale, 72 * scale, 0, true, false, false); |
| htmlOut->dumpDocOutline(doc.get()); |
| } |
| |
| delete htmlOut; |
| |
| exit_status = EXIT_SUCCESS; |
| |
| // clean up |
| error: |
| delete fileName; |
| |
| if (htmlFileName) { |
| delete htmlFileName; |
| } |
| |
| return exit_status; |
| } |
| |
| static std::unique_ptr<GooString> getInfoString(Dict *infoDict, const char *key) |
| { |
| Object obj; |
| // Raw value as read from PDF (may be in pdfDocEncoding or UCS2) |
| const GooString *rawString; |
| // Value converted to unicode |
| Unicode *unicodeString; |
| int unicodeLength; |
| // Value HTML escaped and converted to desired encoding |
| std::unique_ptr<GooString> encodedString; |
| // Is rawString UCS2 (as opposed to pdfDocEncoding) |
| bool isUnicode; |
| |
| obj = infoDict->lookup(key); |
| if (obj.isString()) { |
| rawString = obj.getString(); |
| |
| // Convert rawString to unicode |
| if (hasUnicodeByteOrderMark(rawString->toStr())) { |
| isUnicode = true; |
| unicodeLength = (obj.getString()->getLength() - 2) / 2; |
| } else { |
| isUnicode = false; |
| unicodeLength = obj.getString()->getLength(); |
| } |
| unicodeString = new Unicode[unicodeLength]; |
| |
| for (int i = 0; i < unicodeLength; i++) { |
| if (isUnicode) { |
| unicodeString[i] = ((rawString->getChar((i + 1) * 2) & 0xff) << 8) | (rawString->getChar(((i + 1) * 2) + 1) & 0xff); |
| } else { |
| unicodeString[i] = pdfDocEncoding[rawString->getChar(i) & 0xff]; |
| } |
| } |
| |
| // HTML escape and encode unicode |
| encodedString = HtmlFont::HtmlFilter(unicodeString, unicodeLength); |
| delete[] unicodeString; |
| } |
| |
| return encodedString; |
| } |
| |
| static GooString *getInfoDate(Dict *infoDict, const char *key) |
| { |
| Object obj; |
| int year, mon, day, hour, min, sec, tz_hour, tz_minute; |
| char tz; |
| struct tm tmStruct; |
| GooString *result = nullptr; |
| char buf[256]; |
| |
| obj = infoDict->lookup(key); |
| if (obj.isString()) { |
| const GooString *s = obj.getString(); |
| // TODO do something with the timezone info |
| if (parseDateString(s, &year, &mon, &day, &hour, &min, &sec, &tz, &tz_hour, &tz_minute)) { |
| tmStruct.tm_year = year - 1900; |
| tmStruct.tm_mon = mon - 1; |
| tmStruct.tm_mday = day; |
| tmStruct.tm_hour = hour; |
| tmStruct.tm_min = min; |
| tmStruct.tm_sec = sec; |
| tmStruct.tm_wday = -1; |
| tmStruct.tm_yday = -1; |
| tmStruct.tm_isdst = -1; |
| mktime(&tmStruct); // compute the tm_wday and tm_yday fields |
| if (strftime(buf, sizeof(buf), "%Y-%m-%dT%H:%M:%S+00:00", &tmStruct)) { |
| result = new GooString(buf); |
| } else { |
| result = new GooString(s); |
| } |
| } else { |
| result = new GooString(s); |
| } |
| } |
| return result; |
| } |
