diff options
Diffstat (limited to 'xpdf/pdftohtml.cc')
| -rw-r--r-- | xpdf/pdftohtml.cc | 300 |
1 files changed, 300 insertions, 0 deletions
diff --git a/xpdf/pdftohtml.cc b/xpdf/pdftohtml.cc new file mode 100644 index 0000000..4c98afe --- /dev/null +++ b/xpdf/pdftohtml.cc @@ -0,0 +1,300 @@ +//======================================================================== +// +// pdftohtml.cc +// +// Copyright 2005 Glyph & Cog, LLC +// +//======================================================================== + +#include <aconf.h> +#include <stdio.h> +#include <stdlib.h> +#include "gmem.h" +#include "gmempp.h" +#include "parseargs.h" +#include "gfile.h" +#include "GString.h" +#include "GlobalParams.h" +#include "PDFDoc.h" +#include "HTMLGen.h" +#include "Error.h" +#include "ErrorCodes.h" +#include "config.h" + +//------------------------------------------------------------------------ + +static GBool createIndex(char *htmlDir); + +//------------------------------------------------------------------------ + +static int firstPage = 1; +static int lastPage = 0; +static double zoom = 1; +static int resolution = 150; +static double vStretch = 1; +static GBool embedBackground = gFalse; +static GBool noFonts = gFalse; +static GBool embedFonts = gFalse; +static GBool skipInvisible = gFalse; +static GBool allInvisible = gFalse; +static GBool formFields = gFalse; +static GBool tableMode = gFalse; +static char ownerPassword[33] = "\001"; +static char userPassword[33] = "\001"; +static GBool verbose = gFalse; +static GBool quiet = gFalse; +static char cfgFileName[256] = ""; +static GBool printVersion = gFalse; +static GBool printHelp = gFalse; + +static ArgDesc argDesc[] = { + {"-f", argInt, &firstPage, 0, + "first page to convert"}, + {"-l", argInt, &lastPage, 0, + "last page to convert"}, + {"-z", argFP, &zoom, 0, + "initial zoom level (1.0 means 72dpi)"}, + {"-r", argInt, &resolution, 0, + "resolution, in DPI (default is 150)"}, + {"-vstretch", argFP, &vStretch, 0, + "vertical stretch factor (1.0 means no stretching)"}, + {"-embedbackground", argFlag, &embedBackground, 0, + "embed the background image as base64-encoded data" }, + {"-nofonts", argFlag, &noFonts, 0, + "do not extract embedded fonts"}, + {"-embedfonts", argFlag, &embedFonts, 0, + "embed the fonts as base64-encoded data" }, + {"-skipinvisible", argFlag, &skipInvisible, 0, + "do not draw invisible text"}, + {"-allinvisible", argFlag, &allInvisible, 0, + "treat all text as invisible"}, + {"-formfields", argFlag, &formFields, 0, + "convert form fields to HTML"}, + {"-table", argFlag, &tableMode, 0, + "use table mode for text extraction"}, + {"-opw", argString, ownerPassword, sizeof(ownerPassword), + "owner password (for encrypted files)"}, + {"-upw", argString, userPassword, sizeof(userPassword), + "user password (for encrypted files)"}, + {"-verbose", argFlag, &verbose, 0, + "print per-page status information"}, + {"-q", argFlag, &quiet, 0, + "don't print any messages or errors"}, + {"-cfg", argString, cfgFileName, sizeof(cfgFileName), + "configuration file to use in place of .xpdfrc"}, + {"-v", argFlag, &printVersion, 0, + "print copyright and version info"}, + {"-h", argFlag, &printHelp, 0, + "print usage information"}, + {"-help", argFlag, &printHelp, 0, + "print usage information"}, + {"--help", argFlag, &printHelp, 0, + "print usage information"}, + {"-?", argFlag, &printHelp, 0, + "print usage information"}, + {NULL} +}; + +//------------------------------------------------------------------------ + +static int writeToFile(void *file, const char *data, int size) { + return (int)fwrite(data, 1, size, (FILE *)file); +} + +int main(int argc, char *argv[]) { + PDFDoc *doc; + char *fileName; + char *htmlDir; + GString *ownerPW, *userPW; + HTMLGen *htmlGen; + GString *htmlFileName, *pngFileName, *pngURL; + FILE *htmlFile, *pngFile; + int pg, err, exitCode; + GBool ok; + + exitCode = 99; + + // parse args + fixCommandLine(&argc, &argv); + ok = parseArgs(argDesc, &argc, argv); + if (!ok || argc != 3 || printVersion || printHelp) { + fprintf(stderr, "pdftohtml version %s [www.xpdfreader.com]\n", xpdfVersion); + fprintf(stderr, "%s\n", xpdfCopyright); + if (!printVersion) { + printUsage("pdftohtml", "<PDF-file> <html-dir>", argDesc); + } + goto err0; + } + fileName = argv[1]; + htmlDir = argv[2]; + + // read config file + if (cfgFileName[0] && !pathIsFile(cfgFileName)) { + error(errConfig, -1, "Config file '{0:s}' doesn't exist or isn't a file", + cfgFileName); + } + globalParams = new GlobalParams(cfgFileName); + if (verbose) { + globalParams->setPrintStatusInfo(verbose); + } + if (quiet) { + globalParams->setErrQuiet(quiet); + } + globalParams->setupBaseFonts(NULL); + globalParams->setTextEncoding("UTF-8"); + + // open PDF file + if (ownerPassword[0] != '\001') { + ownerPW = new GString(ownerPassword); + } else { + ownerPW = NULL; + } + if (userPassword[0] != '\001') { + userPW = new GString(userPassword); + } else { + userPW = NULL; + } + doc = new PDFDoc(fileName, ownerPW, userPW); + if (userPW) { + delete userPW; + } + if (ownerPW) { + delete ownerPW; + } + if (!doc->isOk()) { + exitCode = 1; + goto err1; + } + + // check for copy permission + if (!doc->okToCopy()) { + error(errNotAllowed, -1, + "Copying of text from this document is not allowed."); + exitCode = 3; + goto err1; + } + + // get page range + if (firstPage < 1) { + firstPage = 1; + } + if (lastPage < 1 || lastPage > doc->getNumPages()) { + lastPage = doc->getNumPages(); + } + + // create HTML directory + if (makeDir(htmlDir, 0755)) { + error(errIO, -1, "Couldn't create HTML output directory '{0:s}'", + htmlDir); + exitCode = 2; + goto err1; + } + + // set up the HTMLGen object + htmlGen = new HTMLGen(resolution, tableMode); + if (!htmlGen->isOk()) { + exitCode = 99; + goto err1; + } + htmlGen->setZoom(zoom); + htmlGen->setVStretch(vStretch); + htmlGen->setDrawInvisibleText(!skipInvisible); + htmlGen->setAllTextInvisible(allInvisible); + htmlGen->setEmbedBackgroundImage(embedBackground); + htmlGen->setExtractFontFiles(!noFonts); + htmlGen->setEmbedFonts(embedFonts); + htmlGen->setConvertFormFields(formFields); + htmlGen->startDoc(doc); + + // convert the pages + for (pg = firstPage; pg <= lastPage; ++pg) { + if (globalParams->getPrintStatusInfo()) { + fflush(stderr); + printf("[processing page %d]\n", pg); + fflush(stdout); + } + htmlFileName = GString::format("{0:s}/page{1:d}.html", htmlDir, pg); + pngFileName = GString::format("{0:s}/page{1:d}.png", htmlDir, pg); + if (!(htmlFile = openFile(htmlFileName->getCString(), "wb"))) { + error(errIO, -1, "Couldn't open HTML file '{0:t}'", htmlFileName); + delete htmlFileName; + delete pngFileName; + goto err2; + } + if (embedBackground) { + pngFile = NULL; + } else { + if (!(pngFile = openFile(pngFileName->getCString(), "wb"))) { + error(errIO, -1, "Couldn't open PNG file '{0:t}'", pngFileName); + fclose(htmlFile); + delete htmlFileName; + delete pngFileName; + goto err2; + } + } + pngURL = GString::format("page{0:d}.png", pg); + err = htmlGen->convertPage(pg, pngURL->getCString(), htmlDir, + &writeToFile, htmlFile, + &writeToFile, pngFile); + delete pngURL; + fclose(htmlFile); + if (!embedBackground) { + fclose(pngFile); + } + delete htmlFileName; + delete pngFileName; + if (err != errNone) { + error(errIO, -1, "Error converting page {0:d}", pg); + exitCode = 2; + goto err2; + } + } + + // create the master index + if (!createIndex(htmlDir)) { + exitCode = 2; + goto err2; + } + + exitCode = 0; + + // clean up + err2: + delete htmlGen; + err1: + delete doc; + delete globalParams; + err0: + + // check for memory leaks + Object::memCheck(stderr); + gMemReport(stderr); + + return exitCode; +} + +static GBool createIndex(char *htmlDir) { + GString *htmlFileName; + FILE *html; + int pg; + + htmlFileName = GString::format("{0:s}/index.html", htmlDir); + html = openFile(htmlFileName->getCString(), "w"); + delete htmlFileName; + if (!html) { + error(errIO, -1, "Couldn't open HTML file '{0:t}'", htmlFileName); + return gFalse; + } + + fprintf(html, "<html>\n"); + fprintf(html, "<body>\n"); + for (pg = firstPage; pg <= lastPage; ++pg) { + fprintf(html, "<a href=\"page%d.html\">page %d</a><br>\n", pg, pg); + } + fprintf(html, "</body>\n"); + fprintf(html, "</html>\n"); + + fclose(html); + + return gTrue; +} |