/** * \file Converter.cpp * This file is part of LyX, the document processor. * Licence details can be found in the file COPYING. * * \author Dekel Tsur * * Full author contact details are available in file CREDITS. */ #include #include "Converter.h" #include "Buffer.h" #include "buffer_funcs.h" #include "BufferParams.h" #include "ConverterCache.h" #include "Encoding.h" #include "ErrorList.h" #include "Format.h" #include "Language.h" #include "LaTeX.h" #include "LyXRC.h" #include "Mover.h" #include "Session.h" #include "frontends/alert.h" #include "support/debug.h" #include "support/FileNameList.h" #include "support/filetools.h" #include "support/gettext.h" #include "support/lassert.h" #include "support/lstrings.h" #include "support/os.h" #include "support/Package.h" #include "support/PathChanger.h" #include "support/Systemcall.h" using namespace std; using namespace lyx::support; namespace lyx { namespace Alert = lyx::frontend::Alert; namespace { string const token_from("$$i"); string const token_base("$$b"); string const token_to("$$o"); string const token_path("$$p"); string const token_orig_path("$$r"); string const token_orig_from("$$f"); string const token_encoding("$$e"); string const token_latex_encoding("$$E"); string const add_options(string const & command, string const & options) { string head; string const tail = split(command, head, ' '); return head + ' ' + options + ' ' + tail; } string const dvipdfm_options(BufferParams const & bp) { string result; if (bp.papersize != PAPER_CUSTOM) { string const paper_size = bp.paperSizeName(BufferParams::DVIPDFM); if (!paper_size.empty()) result = "-p "+ paper_size; if (bp.orientation == ORIENTATION_LANDSCAPE) result += " -l"; } return result; } class ConverterEqual { public: ConverterEqual(string const & from, string const & to) : from_(from), to_(to) {} bool operator()(Converter const & c) const { return c.from() == from_ && c.to() == to_; } private: string const from_; string const to_; }; } // namespace anon Converter::Converter(string const & f, string const & t, string const & c, string const & l) : from_(f), to_(t), command_(c), flags_(l), From_(0), To_(0), latex_(false), xml_(false), need_aux_(false), nice_(false), need_auth_(false) {} void Converter::readFlags() { string flag_list(flags_); while (!flag_list.empty()) { string flag_name, flag_value; flag_list = split(flag_list, flag_value, ','); flag_value = split(flag_value, flag_name, '='); if (flag_name == "latex") { latex_ = true; latex_flavor_ = flag_value.empty() ? "latex" : flag_value; } else if (flag_name == "xml") xml_ = true; else if (flag_name == "needaux") need_aux_ = true; else if (flag_name == "resultdir") result_dir_ = (flag_value.empty()) ? token_base : flag_value; else if (flag_name == "resultfile") result_file_ = flag_value; else if (flag_name == "parselog") parselog_ = flag_value; else if (flag_name == "nice") nice_ = true; else if (flag_name == "needauth") need_auth_ = true; } if (!result_dir_.empty() && result_file_.empty()) result_file_ = "index." + formats.extension(to_); //if (!contains(command, token_from)) // latex = true; } Converter const * Converters::getConverter(string const & from, string const & to) const { ConverterList::const_iterator const cit = find_if(converterlist_.begin(), converterlist_.end(), ConverterEqual(from, to)); if (cit != converterlist_.end()) return &(*cit); else return 0; } int Converters::getNumber(string const & from, string const & to) const { ConverterList::const_iterator const cit = find_if(converterlist_.begin(), converterlist_.end(), ConverterEqual(from, to)); if (cit != converterlist_.end()) return distance(converterlist_.begin(), cit); else return -1; } void Converters::add(string const & from, string const & to, string const & command, string const & flags) { formats.add(from); formats.add(to); ConverterList::iterator it = find_if(converterlist_.begin(), converterlist_.end(), ConverterEqual(from , to)); Converter converter(from, to, command, flags); if (it != converterlist_.end() && !flags.empty() && flags[0] == '*') { converter = *it; converter.setCommand(command); converter.setFlags(flags); } converter.readFlags(); // The latex_command is used to update the .aux file when running // a converter that uses it. if (converter.latex()) { if (latex_command_.empty() || converter.latex_flavor() == "latex") latex_command_ = subst(command, token_from, ""); if (dvilualatex_command_.empty() || converter.latex_flavor() == "dvilualatex") dvilualatex_command_ = subst(command, token_from, ""); if (lualatex_command_.empty() || converter.latex_flavor() == "lualatex") lualatex_command_ = subst(command, token_from, ""); if (pdflatex_command_.empty() || converter.latex_flavor() == "pdflatex") pdflatex_command_ = subst(command, token_from, ""); if (xelatex_command_.empty() || converter.latex_flavor() == "xelatex") xelatex_command_ = subst(command, token_from, ""); } if (it == converterlist_.end()) { converterlist_.push_back(converter); } else { converter.setFrom(it->From()); converter.setTo(it->To()); *it = converter; } } void Converters::erase(string const & from, string const & to) { ConverterList::iterator const it = find_if(converterlist_.begin(), converterlist_.end(), ConverterEqual(from, to)); if (it != converterlist_.end()) converterlist_.erase(it); } // This method updates the pointers From and To in all the converters. // The code is not very efficient, but it doesn't matter as the number // of formats and converters is small. // Furthermore, this method is called only on startup, or after // adding/deleting a format in FormPreferences (the latter calls can be // eliminated if the formats in the Formats class are stored using a map or // a list (instead of a vector), but this will cause other problems). void Converters::update(Formats const & formats) { ConverterList::iterator it = converterlist_.begin(); ConverterList::iterator end = converterlist_.end(); for (; it != end; ++it) { it->setFrom(formats.getFormat(it->from())); it->setTo(formats.getFormat(it->to())); } } // This method updates the pointers From and To in the last converter. // It is called when adding a new converter in FormPreferences void Converters::updateLast(Formats const & formats) { if (converterlist_.begin() != converterlist_.end()) { ConverterList::iterator it = converterlist_.end() - 1; it->setFrom(formats.getFormat(it->from())); it->setTo(formats.getFormat(it->to())); } } OutputParams::FLAVOR Converters::getFlavor(Graph::EdgePath const & path, Buffer const * buffer) { for (Graph::EdgePath::const_iterator cit = path.begin(); cit != path.end(); ++cit) { Converter const & conv = converterlist_[*cit]; if (conv.latex()) { if (conv.latex_flavor() == "latex") return OutputParams::LATEX; if (conv.latex_flavor() == "xelatex") return OutputParams::XETEX; if (conv.latex_flavor() == "lualatex") return OutputParams::LUATEX; if (conv.latex_flavor() == "dvilualatex") return OutputParams::DVILUATEX; if (conv.latex_flavor() == "pdflatex") return OutputParams::PDFLATEX; } if (conv.xml()) return OutputParams::XML; } return buffer ? buffer->params().getOutputFlavor() : OutputParams::LATEX; } bool Converters::checkAuth(Converter const & conv, string const & doc_fname) { if (!conv.need_auth()) return true; const docstring security_warning = bformat( _("

The requested operation requires the use of a converter from " "%2$s to %3$s:

" "

%1$s

" "

This external program can execute arbitrary commands on your " "system, including dangerous ones, if instructed to do so by a " "maliciously crafted .lyx document.

"), from_utf8(conv.command()), from_utf8(conv.from()), from_utf8(conv.to())); if (lyxrc.use_converter_needauth_forbidden) { frontend::Alert::warning( _("An external converter is disabled for security reasons"), security_warning + _( "

Your current settings forbid its execution.

" "

(To change this setting, go to Preferences ▹ File " "Handling ▹ Converters and uncheck Security ▹ " "Forbid needauth converters.)"), false); return false; } if (!lyxrc.use_converter_needauth) return true; static const docstring security_title = _("An external converter requires your authorization"); int choice; const docstring security_warning2 = security_warning + _("

Would you like to run this converter?

" "

Only run if you trust the origin/sender of the LyX " "document!

"); if (!doc_fname.empty()) { LYXERR(Debug::FILES, "looking up: " << doc_fname); std::set & auth_files = theSession().authFiles().authFiles(); if (auth_files.find(doc_fname) == auth_files.end()) { choice = frontend::Alert::prompt(security_title, security_warning2, 0, 0, _("Do ¬ run"), _("&Run"), _("&Always run for this document")); if (choice == 2) auth_files.insert(doc_fname); } else { choice = 1; } } else { choice = frontend::Alert::prompt(security_title, security_warning2, 0, 0, _("Do ¬ run"), _("&Run")); } return choice != 0; } bool Converters::convert(Buffer const * buffer, FileName const & from_file, FileName const & to_file, FileName const & orig_from, string const & from_format, string const & to_format, ErrorList & errorList, int conversionflags) { if (from_format == to_format) return move(from_format, from_file, to_file, false); if ((conversionflags & try_cache) && ConverterCache::get().inCache(orig_from, to_format)) return ConverterCache::get().copy(orig_from, to_format, to_file); Graph::EdgePath edgepath = getPath(from_format, to_format); if (edgepath.empty()) { if (conversionflags & try_default) { // if no special converter defined, then we take the // default one from ImageMagic. string const from_ext = from_format.empty() ? getExtension(from_file.absFileName()) : formats.extension(from_format); string const to_ext = formats.extension(to_format); string const command = os::python() + ' ' + quoteName(libFileSearch("scripts", "convertDefault.py").toFilesystemEncoding()) + ' ' + from_ext + ' ' + quoteName(from_file.toFilesystemEncoding()) + ' ' + to_ext + ' ' + quoteName(to_file.toFilesystemEncoding()); LYXERR(Debug::FILES, "No converter defined! " "I use convertDefault.py:\n\t" << command); Systemcall one; one.startscript(Systemcall::Wait, command, buffer ? buffer->filePath() : string(), buffer ? buffer->layoutPos() : string()); if (to_file.isReadableFile()) { if (conversionflags & try_cache) ConverterCache::get().add(orig_from, to_format, to_file); return true; } } // only warn once per session and per file type static std::map warned; if (warned.find(from_format) != warned.end() && warned.find(from_format)->second == to_format) { return false; } warned.insert(make_pair(from_format, to_format)); Alert::error(_("Cannot convert file"), bformat(_("No information for converting %1$s " "format files to %2$s.\n" "Define a converter in the preferences."), from_ascii(from_format), from_ascii(to_format))); return false; } // buffer is only invalid for importing, and then runparams is not // used anyway. OutputParams runparams(buffer ? &buffer->params().encoding() : 0); runparams.flavor = getFlavor(edgepath, buffer); if (buffer) { runparams.use_japanese = buffer->params().bufferFormat() == "latex" && buffer->params().encoding().package() == Encoding::japanese; runparams.use_indices = buffer->params().use_indices; runparams.bibtex_command = (buffer->params().bibtex_command == "default") ? string() : buffer->params().bibtex_command; runparams.index_command = (buffer->params().index_command == "default") ? string() : buffer->params().index_command; runparams.document_language = buffer->params().language->babel(); } // Some converters (e.g. lilypond) can only output files to the // current directory, so we need to change the current directory. // This has the added benefit that all other files that may be // generated by the converter are deleted when LyX closes and do not // clutter the real working directory. // FIXME: This does not work if path is an UNC path on windows // (bug 6127). string const path(onlyPath(from_file.absFileName())); // Prevent the compiler from optimizing away p FileName pp(path); PathChanger p(pp); // empty the error list before any new conversion takes place. errorList.clear(); bool run_latex = false; string from_base = changeExtension(from_file.absFileName(), ""); string to_base = changeExtension(to_file.absFileName(), ""); FileName infile; FileName outfile = from_file; for (Graph::EdgePath::const_iterator cit = edgepath.begin(); cit != edgepath.end(); ++cit) { Converter const & conv = converterlist_[*cit]; bool dummy = conv.To()->dummy() && conv.to() != "program"; if (!dummy) { LYXERR(Debug::FILES, "Converting from " << conv.from() << " to " << conv.to()); } infile = outfile; outfile = FileName(conv.result_file().empty() ? changeExtension(from_file.absFileName(), conv.To()->extension()) : addName(subst(conv.result_dir(), token_base, from_base), subst(conv.result_file(), token_base, onlyFileName(from_base)))); // if input and output files are equal, we use a // temporary file as intermediary (JMarc) FileName real_outfile; if (!conv.result_file().empty()) real_outfile = FileName(changeExtension(from_file.absFileName(), conv.To()->extension())); if (outfile == infile) { real_outfile = infile; // when importing, a buffer does not necessarily exist if (buffer) outfile = FileName(addName(buffer->temppath(), "tmpfile.out")); else outfile = FileName(addName(package().temp_dir().absFileName(), "tmpfile.out")); } if (!checkAuth(conv, buffer ? buffer->absFileName() : string())) return false; if (conv.latex()) { run_latex = true; string command = conv.command(); command = subst(command, token_from, ""); command = subst(command, token_latex_encoding, buffer ? buffer->params().encoding().latexName() : string()); LYXERR(Debug::FILES, "Running " << command); if (!runLaTeX(*buffer, command, runparams, errorList)) return false; } else { if (conv.need_aux() && !run_latex) { string command; switch (runparams.flavor) { case OutputParams::DVILUATEX: command = dvilualatex_command_; break; case OutputParams::LUATEX: command = lualatex_command_; break; case OutputParams::PDFLATEX: command = pdflatex_command_; break; case OutputParams::XETEX: command = xelatex_command_; break; default: command = latex_command_; break; } if (!command.empty()) { LYXERR(Debug::FILES, "Running " << command << " to update aux file"); if (!runLaTeX(*buffer, command, runparams, errorList)) return false; } } // FIXME UNICODE string const infile2 = to_utf8(makeRelPath(from_utf8(infile.absFileName()), from_utf8(path))); string const outfile2 = to_utf8(makeRelPath(from_utf8(outfile.absFileName()), from_utf8(path))); string command = conv.command(); command = subst(command, token_from, quoteName(infile2)); command = subst(command, token_base, quoteName(from_base)); command = subst(command, token_to, quoteName(outfile2)); command = subst(command, token_path, quoteName(onlyPath(infile.absFileName()))); command = subst(command, token_orig_path, quoteName(onlyPath(orig_from.absFileName()))); command = subst(command, token_orig_from, quoteName(onlyFileName(orig_from.absFileName()))); command = subst(command, token_encoding, buffer ? buffer->params().encoding().iconvName() : string()); if (!conv.parselog().empty()) command += " 2> " + quoteName(infile2 + ".out"); // it is not actually not necessary to test for buffer here, // but it pleases coverity. if (buffer && conv.from() == "dvi" && conv.to() == "ps") command = add_options(command, buffer->params().dvips_options()); else if (buffer && conv.from() == "dvi" && prefixIs(conv.to(), "pdf")) command = add_options(command, dvipdfm_options(buffer->params())); LYXERR(Debug::FILES, "Calling " << command); if (buffer) buffer->message(_("Executing command: ") + from_utf8(command)); Systemcall one; int res; if (dummy) { res = one.startscript(Systemcall::DontWait, to_filesystem8bit(from_utf8(command)), buffer ? buffer->filePath() : string(), buffer ? buffer->layoutPos() : string()); // We're not waiting for the result, so we can't do anything // else here. } else { res = one.startscript(Systemcall::Wait, to_filesystem8bit(from_utf8(command)), buffer ? buffer->filePath() : string(), buffer ? buffer->layoutPos() : string()); if (!real_outfile.empty()) { Mover const & mover = getMover(conv.to()); if (!mover.rename(outfile, real_outfile)) res = -1; else LYXERR(Debug::FILES, "renaming file " << outfile << " to " << real_outfile); // Finally, don't forget to tell any future // converters to use the renamed file... outfile = real_outfile; } if (!conv.parselog().empty()) { string const logfile = infile2 + ".log"; string const command2 = conv.parselog() + " < " + quoteName(infile2 + ".out") + " > " + quoteName(logfile); one.startscript(Systemcall::Wait, to_filesystem8bit(from_utf8(command2)), buffer->filePath(), buffer->layoutPos()); if (!scanLog(*buffer, command, makeAbsPath(logfile, path), errorList)) return false; } } if (res) { if (conv.to() == "program") { Alert::error(_("Build errors"), _("There were errors during the build process.")); } else { // FIXME: this should go out of here. For example, here we cannot say if // it is a document (.lyx) or something else. Same goes for elsewhere. Alert::error(_("Cannot convert file"), bformat(_("An error occurred while running:\n%1$s"), wrapParas(from_utf8(command)))); } return false; } } } Converter const & conv = converterlist_[edgepath.back()]; if (conv.To()->dummy()) return true; if (!conv.result_dir().empty()) { // The converter has put the file(s) in a directory. // In this case we ignore the given to_file. if (from_base != to_base) { string const from = subst(conv.result_dir(), token_base, from_base); string const to = subst(conv.result_dir(), token_base, to_base); Mover const & mover = getMover(conv.from()); if (!mover.rename(FileName(from), FileName(to))) { Alert::error(_("Cannot convert file"), bformat(_("Could not move a temporary directory from %1$s to %2$s."), from_utf8(from), from_utf8(to))); return false; } } return true; } else { if (conversionflags & try_cache) ConverterCache::get().add(orig_from, to_format, outfile); return move(conv.to(), outfile, to_file, conv.latex()); } } bool Converters::move(string const & fmt, FileName const & from, FileName const & to, bool copy) { if (from == to) return true; bool no_errors = true; string const path = onlyPath(from.absFileName()); string const base = onlyFileName(removeExtension(from.absFileName())); string const to_base = removeExtension(to.absFileName()); string const to_extension = getExtension(to.absFileName()); support::FileNameList const files = FileName(path).dirList(getExtension(from.absFileName())); for (support::FileNameList::const_iterator it = files.begin(); it != files.end(); ++it) { string const from2 = it->absFileName(); string const file2 = onlyFileName(from2); if (prefixIs(file2, base)) { string const to2 = changeExtension( to_base + file2.substr(base.length()), to_extension); LYXERR(Debug::FILES, "moving " << from2 << " to " << to2); Mover const & mover = getMover(fmt); bool const moved = copy ? mover.copy(*it, FileName(to2)) : mover.rename(*it, FileName(to2)); if (!moved && no_errors) { Alert::error(_("Cannot convert file"), bformat(copy ? _("Could not copy a temporary file from %1$s to %2$s.") : _("Could not move a temporary file from %1$s to %2$s."), from_utf8(from2), from_utf8(to2))); no_errors = false; } } } return no_errors; } bool Converters::formatIsUsed(string const & format) { ConverterList::const_iterator cit = converterlist_.begin(); ConverterList::const_iterator end = converterlist_.end(); for (; cit != end; ++cit) { if (cit->from() == format || cit->to() == format) return true; } return false; } bool Converters::scanLog(Buffer const & buffer, string const & /*command*/, FileName const & filename, ErrorList & errorList) { OutputParams runparams(0); runparams.flavor = OutputParams::LATEX; LaTeX latex("", runparams, filename); TeXErrors terr; int const result = latex.scanLogFile(terr); if (result & LaTeX::ERRORS) buffer.bufferErrors(terr, errorList); return true; } namespace { class ShowMessage : public boost::signals2::trackable { public: ShowMessage(Buffer const & b) : buffer_(b) {} void operator()(docstring const & msg) const { buffer_.message(msg); } private: Buffer const & buffer_; }; } bool Converters::runLaTeX(Buffer const & buffer, string const & command, OutputParams const & runparams, ErrorList & errorList) { buffer.setBusy(true); buffer.message(_("Running LaTeX...")); // do the LaTeX run(s) string const name = buffer.latexName(); LaTeX latex(command, runparams, FileName(makeAbsPath(name)), buffer.filePath(), buffer.layoutPos(), buffer.lastPreviewError()); TeXErrors terr; ShowMessage show(buffer); latex.message.connect(show); int const result = latex.run(terr); if (result & LaTeX::ERRORS) buffer.bufferErrors(terr, errorList); if (!errorList.empty()) { // We will show the LaTeX Errors GUI later which contains // specific error messages so it would be repetitive to give // e.g. the "finished with an error" dialog in addition. } else if (result & LaTeX::NO_LOGFILE) { docstring const str = bformat(_("LaTeX did not run successfully. " "Additionally, LyX could not locate " "the LaTeX log %1$s."), from_utf8(name)); Alert::error(_("LaTeX failed"), str); } else if (result & LaTeX::NONZERO_ERROR) { docstring const str = bformat(_( "The external program\n%1$s\n" "finished with an error. " "It is recommended you fix the cause of the external " "program's error (check the logs). "), from_utf8(command)); Alert::error(_("LaTeX failed"), str); } else if (result & LaTeX::NO_OUTPUT) { Alert::warning(_("Output is empty"), _("No output file was generated.")); } buffer.setBusy(false); int const ERROR_MASK = LaTeX::NO_LOGFILE | LaTeX::ERRORS | LaTeX::NO_OUTPUT; return (result & ERROR_MASK) == 0; } void Converters::buildGraph() { // clear graph's data structures G_.init(formats.size()); // each of the converters knows how to convert one format to another // so, for each of them, we create an arrow on the graph, going from // the one to the other ConverterList::iterator it = converterlist_.begin(); ConverterList::iterator const end = converterlist_.end(); for (; it != end ; ++it) { int const from = formats.getNumber(it->from()); int const to = formats.getNumber(it->to()); LASSERT(from >= 0, continue); LASSERT(to >= 0, continue); G_.addEdge(from, to); } } FormatList const Converters::intToFormat(vector const & input) { FormatList result(input.size()); vector::const_iterator it = input.begin(); vector::const_iterator const end = input.end(); FormatList::iterator rit = result.begin(); for ( ; it != end; ++it, ++rit) { *rit = &formats.get(*it); } return result; } FormatList const Converters::getReachableTo(string const & target, bool const clear_visited) { vector const & reachablesto = G_.getReachableTo(formats.getNumber(target), clear_visited); return intToFormat(reachablesto); } FormatList const Converters::getReachable(string const & from, bool const only_viewable, bool const clear_visited, set const & excludes) { set excluded_numbers; set::const_iterator sit = excludes.begin(); set::const_iterator const end = excludes.end(); for (; sit != end; ++sit) excluded_numbers.insert(formats.getNumber(*sit)); vector const & reachables = G_.getReachable(formats.getNumber(from), only_viewable, clear_visited, excluded_numbers); return intToFormat(reachables); } bool Converters::isReachable(string const & from, string const & to) { return G_.isReachable(formats.getNumber(from), formats.getNumber(to)); } Graph::EdgePath Converters::getPath(string const & from, string const & to) { return G_.getPath(formats.getNumber(from), formats.getNumber(to)); } FormatList Converters::importableFormats() { vector l = loaders(); FormatList result = getReachableTo(l[0], true); vector::const_iterator it = l.begin() + 1; vector::const_iterator en = l.end(); for (; it != en; ++it) { FormatList r = getReachableTo(*it, false); result.insert(result.end(), r.begin(), r.end()); } return result; } FormatList Converters::exportableFormats(bool only_viewable) { vector s = savers(); FormatList result = getReachable(s[0], only_viewable, true); vector::const_iterator it = s.begin() + 1; vector::const_iterator en = s.end(); for (; it != en; ++it) { FormatList r = getReachable(*it, only_viewable, false); result.insert(result.end(), r.begin(), r.end()); } return result; } vector Converters::loaders() const { vector v; v.push_back("lyx"); v.push_back("text"); v.push_back("textparagraph"); return v; } vector Converters::savers() const { vector v; v.push_back("docbook"); v.push_back("latex"); v.push_back("literate"); v.push_back("luatex"); v.push_back("dviluatex"); v.push_back("lyx"); v.push_back("xhtml"); v.push_back("pdflatex"); v.push_back("platex"); v.push_back("text"); v.push_back("xetex"); return v; } } // namespace lyx