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e0720eaa78
When there is no context for writing output or error messages, use the default logger.
433 lines
11 KiB
C++
433 lines
11 KiB
C++
#include <qpdf/QPDFJob.hh>
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// See "HOW TO ADD A COMMAND-LINE ARGUMENT" in README-maintainer.
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#include <cstdio>
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#include <ctype.h>
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#include <iostream>
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#include <memory>
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#include <sstream>
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#include <stdlib.h>
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#include <string.h>
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#include <qpdf/QIntC.hh>
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#include <qpdf/QPDFArgParser.hh>
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#include <qpdf/QPDFCryptoProvider.hh>
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#include <qpdf/QPDFJob.hh>
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#include <qpdf/QPDFLogger.hh>
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#include <qpdf/QTC.hh>
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#include <qpdf/QUtil.hh>
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namespace
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{
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class ArgParser
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{
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public:
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ArgParser(QPDFArgParser& ap, std::shared_ptr<QPDFJob::Config> c_main);
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void parseOptions();
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private:
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#include <qpdf/auto_job_decl.hh>
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void usage(std::string const& message);
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void initOptionTables();
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QPDFArgParser ap;
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std::shared_ptr<QPDFJob::Config> c_main;
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std::shared_ptr<QPDFJob::CopyAttConfig> c_copy_att;
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std::shared_ptr<QPDFJob::AttConfig> c_att;
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std::shared_ptr<QPDFJob::PagesConfig> c_pages;
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std::shared_ptr<QPDFJob::UOConfig> c_uo;
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std::shared_ptr<QPDFJob::EncConfig> c_enc;
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std::vector<std::string> accumulated_args;
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std::shared_ptr<char> pages_password;
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bool gave_input;
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bool gave_output;
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};
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} // namespace
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ArgParser::ArgParser(
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QPDFArgParser& ap, std::shared_ptr<QPDFJob::Config> c_main) :
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ap(ap),
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c_main(c_main),
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pages_password(nullptr),
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gave_input(false),
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gave_output(false)
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{
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initOptionTables();
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}
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#include <qpdf/auto_job_help.hh>
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void
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ArgParser::initOptionTables()
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{
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#include <qpdf/auto_job_init.hh>
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this->ap.addFinalCheck([this]() { c_main->checkConfiguration(); });
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// add_help is defined in auto_job_help.hh
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add_help(this->ap);
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// Special case: ignore -- at the top level. This undocumented
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// behavior is for backward compatibility; it was unintentionally
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// the case prior to 10.6, and some users were relying on it.
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this->ap.selectMainOptionTable();
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this->ap.addBare("--", []() {});
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}
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void
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ArgParser::argPositional(std::string const& arg)
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{
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if (!this->gave_input) {
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c_main->inputFile(arg);
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this->gave_input = true;
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} else if (!this->gave_output) {
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c_main->outputFile(arg);
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this->gave_output = true;
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} else {
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usage("unknown argument " + arg);
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}
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}
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void
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ArgParser::argEmpty()
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{
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c_main->emptyInput();
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this->gave_input = true;
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}
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void
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ArgParser::argReplaceInput()
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{
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c_main->replaceInput();
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this->gave_output = true;
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}
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void
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ArgParser::argVersion()
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{
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auto whoami = this->ap.getProgname();
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*QPDFLogger::defaultLogger()->getInfo()
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<< whoami << " version " << QPDF::QPDFVersion() << "\n"
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<< "Run " << whoami
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<< " --copyright to see copyright and license information.\n";
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}
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void
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ArgParser::argCopyright()
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{
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// clang-format off
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// Make sure the output looks right on an 80-column display.
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// 1 2 3 4 5 6 7 8
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// 12345678901234567890123456789012345678901234567890123456789012345678901234567890
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*QPDFLogger::defaultLogger()->getInfo()
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<< this->ap.getProgname()
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<< " version " << QPDF::QPDFVersion() << "\n"
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<< "\n"
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<< "Copyright (c) 2005-2022 Jay Berkenbilt\n"
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<< "QPDF is licensed under the Apache License, Version 2.0 (the \"License\");\n"
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<< "you may not use this file except in compliance with the License.\n"
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<< "You may obtain a copy of the License at\n"
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<< "\n"
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<< " http://www.apache.org/licenses/LICENSE-2.0\n"
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<< "\n"
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<< "Unless required by applicable law or agreed to in writing, software\n"
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<< "distributed under the License is distributed on an \"AS IS\" BASIS,\n"
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<< "WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n"
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<< "See the License for the specific language governing permissions and\n"
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<< "limitations under the License.\n"
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<< "\n"
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<< "Versions of qpdf prior to version 7 were released under the terms\n"
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<< "of version 2.0 of the Artistic License. At your option, you may\n"
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<< "continue to consider qpdf to be licensed under those terms. Please\n"
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<< "see the manual for additional information.\n";
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// clang-format on
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}
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void
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ArgParser::argJsonHelp()
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{
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*QPDFLogger::defaultLogger()->getInfo()
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<< QPDFJob::json_out_schema_v1() << "\n";
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}
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void
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ArgParser::argShowCrypto()
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{
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auto crypto = QPDFCryptoProvider::getRegisteredImpls();
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std::string default_crypto = QPDFCryptoProvider::getDefaultProvider();
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*QPDFLogger::defaultLogger()->getInfo() << default_crypto << "\n";
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for (auto const& iter: crypto) {
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if (iter != default_crypto) {
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*QPDFLogger::defaultLogger()->getInfo() << iter << "\n";
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}
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}
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}
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void
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ArgParser::argEncrypt()
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{
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this->accumulated_args.clear();
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if (this->ap.isCompleting() && this->ap.argsLeft() == 0) {
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this->ap.insertCompletion("user-password");
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}
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this->ap.selectOptionTable(O_ENCRYPTION);
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}
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void
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ArgParser::argEncPositional(std::string const& arg)
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{
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this->accumulated_args.push_back(arg);
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size_t n_args = this->accumulated_args.size();
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if (n_args < 3) {
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if (this->ap.isCompleting() && (this->ap.argsLeft() == 0)) {
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if (n_args == 1) {
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this->ap.insertCompletion("owner-password");
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} else if (n_args == 2) {
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this->ap.insertCompletion("40");
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this->ap.insertCompletion("128");
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this->ap.insertCompletion("256");
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}
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}
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return;
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}
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std::string user_password = this->accumulated_args.at(0);
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std::string owner_password = this->accumulated_args.at(1);
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std::string len_str = this->accumulated_args.at(2);
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int keylen = 0;
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if (len_str == "40") {
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keylen = 40;
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this->ap.selectOptionTable(O_40_BIT_ENCRYPTION);
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} else if (len_str == "128") {
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keylen = 128;
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this->ap.selectOptionTable(O_128_BIT_ENCRYPTION);
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} else if (len_str == "256") {
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keylen = 256;
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this->ap.selectOptionTable(O_256_BIT_ENCRYPTION);
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} else {
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usage("encryption key length must be 40, 128, or 256");
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}
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this->c_enc = c_main->encrypt(keylen, user_password, owner_password);
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}
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void
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ArgParser::argPages()
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{
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this->accumulated_args.clear();
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this->c_pages = c_main->pages();
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this->ap.selectOptionTable(O_PAGES);
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}
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void
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ArgParser::argPagesPassword(std::string const& parameter)
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{
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if (this->pages_password) {
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QTC::TC("qpdf", "QPDFJob duplicated pages password");
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usage("--password already specified for this file");
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}
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if (this->accumulated_args.size() != 1) {
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QTC::TC("qpdf", "QPDFJob misplaced pages password");
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usage("in --pages, --password must immediately follow a file name");
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}
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this->pages_password = QUtil::make_shared_cstr(parameter);
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}
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void
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ArgParser::argPagesPositional(std::string const& arg)
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{
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if (arg.empty()) {
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if (this->accumulated_args.empty()) {
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return;
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}
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} else {
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this->accumulated_args.push_back(arg);
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}
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std::string file = this->accumulated_args.at(0);
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char const* range_p = nullptr;
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size_t n_args = this->accumulated_args.size();
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if (n_args >= 2) {
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// will be copied before accumulated_args is cleared
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range_p = this->accumulated_args.at(1).c_str();
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}
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// See if the user omitted the range entirely, in which case we
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// assume "1-z".
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std::string next_file;
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if (range_p == nullptr) {
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if (arg.empty()) {
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// The filename or password was the last argument
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QTC::TC(
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"qpdf",
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"QPDFJob pages range omitted at end",
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this->pages_password ? 0 : 1);
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} else {
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// We need to accumulate some more arguments
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return;
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}
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} else {
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try {
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QUtil::parse_numrange(range_p, 0);
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} catch (std::runtime_error& e1) {
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// The range is invalid. Let's see if it's a file.
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if (strcmp(range_p, ".") == 0) {
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// "." means the input file.
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QTC::TC("qpdf", "QPDFJob pages range omitted with .");
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} else if (QUtil::file_can_be_opened(range_p)) {
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QTC::TC("qpdf", "QPDFJob pages range omitted in middle");
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// Yup, it's a file.
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} else {
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// Give the range error
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usage(e1.what());
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}
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next_file = range_p;
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range_p = nullptr;
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}
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}
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std::string range(range_p ? range_p : "1-z");
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this->c_pages->pageSpec(file, range, this->pages_password.get());
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this->accumulated_args.clear();
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this->pages_password = nullptr;
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if (!next_file.empty()) {
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this->accumulated_args.push_back(next_file);
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}
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}
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void
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ArgParser::argEndPages()
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{
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argPagesPositional("");
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c_pages->endPages();
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c_pages = nullptr;
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}
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void
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ArgParser::argUnderlay()
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{
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this->c_uo = c_main->underlay();
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this->ap.selectOptionTable(O_UNDERLAY_OVERLAY);
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}
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void
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ArgParser::argOverlay()
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{
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this->c_uo = c_main->overlay();
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this->ap.selectOptionTable(O_UNDERLAY_OVERLAY);
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}
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void
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ArgParser::argAddAttachment()
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{
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this->c_att = c_main->addAttachment();
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this->ap.selectOptionTable(O_ATTACHMENT);
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}
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void
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ArgParser::argCopyAttachmentsFrom()
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{
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this->c_copy_att = c_main->copyAttachmentsFrom();
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this->ap.selectOptionTable(O_COPY_ATTACHMENT);
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}
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void
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ArgParser::argEndEncryption()
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{
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c_enc->endEncrypt();
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c_enc = nullptr;
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}
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void
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ArgParser::argEnd40BitEncryption()
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{
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argEndEncryption();
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}
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void
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ArgParser::argEnd128BitEncryption()
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{
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argEndEncryption();
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}
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void
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ArgParser::argEnd256BitEncryption()
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{
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argEndEncryption();
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}
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void
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ArgParser::argUOPositional(std::string const& arg)
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{
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c_uo->file(arg);
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}
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void
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ArgParser::argEndUnderlayOverlay()
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{
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c_uo->endUnderlayOverlay();
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c_uo = nullptr;
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}
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void
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ArgParser::argAttPositional(std::string const& arg)
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{
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c_att->file(arg);
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}
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void
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ArgParser::argEndAttachment()
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{
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c_att->endAddAttachment();
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c_att = nullptr;
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}
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void
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ArgParser::argCopyAttPositional(std::string const& arg)
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{
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c_copy_att->file(arg);
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}
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void
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ArgParser::argEndCopyAttachment()
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{
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c_copy_att->endCopyAttachmentsFrom();
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c_copy_att = nullptr;
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}
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void
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ArgParser::argJobJsonHelp()
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{
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*QPDFLogger::defaultLogger()->getInfo()
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<< QPDFJob::job_json_schema_v1() << "\n";
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}
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void
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ArgParser::usage(std::string const& message)
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{
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this->ap.usage(message);
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}
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void
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ArgParser::parseOptions()
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{
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try {
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this->ap.parseArgs();
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} catch (std::runtime_error& e) {
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usage(e.what());
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}
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}
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void
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QPDFJob::initializeFromArgv(char const* const argv[], char const* progname_env)
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{
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if (progname_env == nullptr) {
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progname_env = "QPDF_EXECUTABLE";
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}
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int argc = 0;
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for (auto k = argv; *k; ++k) {
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++argc;
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}
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QPDFArgParser qap(argc, argv, progname_env);
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setMessagePrefix(qap.getProgname());
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ArgParser ap(qap, config());
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ap.parseOptions();
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}
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