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/*
* Copyright (C) 2019 KeePassXC Team <team@keepassxc.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 or (at your option)
* version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <cstdlib>
#include <stdio.h>
#include "Generate.h"
#include "cli/TextStream.h"
#include "cli/Utils.h"
const QCommandLineOption Generate::PasswordLengthOption =
QCommandLineOption(QStringList() << "L"
<< "length",
QObject::tr("Length of the generated password"),
QObject::tr("length"));
const QCommandLineOption Generate::LowerCaseOption = QCommandLineOption(QStringList() << "l"
<< "lower",
QObject::tr("Use lowercase characters"));
const QCommandLineOption Generate::UpperCaseOption = QCommandLineOption(QStringList() << "U"
<< "upper",
QObject::tr("Use uppercase characters"));
const QCommandLineOption Generate::NumbersOption = QCommandLineOption(QStringList() << "n"
<< "numeric",
QObject::tr("Use numbers"));
const QCommandLineOption Generate::SpecialCharsOption = QCommandLineOption(QStringList() << "s"
<< "special",
QObject::tr("Use special characters"));
const QCommandLineOption Generate::ExtendedAsciiOption = QCommandLineOption(QStringList() << "e"
<< "extended",
QObject::tr("Use extended ASCII"));
const QCommandLineOption Generate::ExcludeCharsOption = QCommandLineOption(QStringList() << "x"
<< "exclude",
QObject::tr("Exclude character set"),
QObject::tr("chars"));
const QCommandLineOption Generate::ExcludeSimilarCharsOption =
QCommandLineOption(QStringList() << "exclude-similar", QObject::tr("Exclude similar looking characters"));
const QCommandLineOption Generate::IncludeEveryGroupOption =
QCommandLineOption(QStringList() << "every-group", QObject::tr("Include characters from every selected group"));
Generate::Generate()
{
name = QString("generate");
description = QObject::tr("Generate a new random password.");
options.append(Generate::PasswordLengthOption);
options.append(Generate::LowerCaseOption);
options.append(Generate::UpperCaseOption);
options.append(Generate::NumbersOption);
options.append(Generate::SpecialCharsOption);
options.append(Generate::ExtendedAsciiOption);
options.append(Generate::ExcludeCharsOption);
options.append(Generate::ExcludeSimilarCharsOption);
options.append(Generate::IncludeEveryGroupOption);
}
/**
* Creates a password generator instance using the command line options
* of the parser object.
*/
QSharedPointer<PasswordGenerator> Generate::createGenerator(QSharedPointer<QCommandLineParser> parser)
{
TextStream errorTextStream(Utils::STDERR, QIODevice::WriteOnly);
QSharedPointer<PasswordGenerator> passwordGenerator = QSharedPointer<PasswordGenerator>(new PasswordGenerator());
QString passwordLength = parser->value(Generate::PasswordLengthOption);
if (passwordLength.isEmpty()) {
passwordGenerator->setLength(PasswordGenerator::DefaultLength);
} else if (passwordLength.toInt() <= 0) {
errorTextStream << QObject::tr("Invalid password length %1").arg(passwordLength) << endl;
return QSharedPointer<PasswordGenerator>(nullptr);
} else {
passwordGenerator->setLength(passwordLength.toInt());
}
PasswordGenerator::CharClasses classes = 0x0;
if (parser->isSet(Generate::LowerCaseOption)) {
classes |= PasswordGenerator::LowerLetters;
}
if (parser->isSet(Generate::UpperCaseOption)) {
classes |= PasswordGenerator::UpperLetters;
}
if (parser->isSet(Generate::NumbersOption)) {
classes |= PasswordGenerator::Numbers;
}
if (parser->isSet(Generate::SpecialCharsOption)) {
classes |= PasswordGenerator::SpecialCharacters;
}
if (parser->isSet(Generate::ExtendedAsciiOption)) {
classes |= PasswordGenerator::EASCII;
}
PasswordGenerator::GeneratorFlags flags = 0x0;
if (parser->isSet(Generate::ExcludeSimilarCharsOption)) {
flags |= PasswordGenerator::ExcludeLookAlike;
}
if (parser->isSet(Generate::IncludeEveryGroupOption)) {
flags |= PasswordGenerator::CharFromEveryGroup;
}
// The default charset will be used if no explicit class
// option was set.
passwordGenerator->setCharClasses(classes);
passwordGenerator->setFlags(flags);
passwordGenerator->setExcludedChars(parser->value(Generate::ExcludeCharsOption));
if (!passwordGenerator->isValid()) {
errorTextStream << QObject::tr("Invalid password generator after applying all options") << endl;
return QSharedPointer<PasswordGenerator>(nullptr);
}
return passwordGenerator;
}
int Generate::execute(const QStringList& arguments)
{
QSharedPointer<QCommandLineParser> parser = getCommandLineParser(arguments);
if (parser.isNull()) {
return EXIT_FAILURE;
}
QSharedPointer<PasswordGenerator> passwordGenerator = Generate::createGenerator(parser);
if (passwordGenerator.isNull()) {
return EXIT_FAILURE;
}
TextStream outputTextStream(Utils::STDOUT, QIODevice::WriteOnly);
QString password = passwordGenerator->generatePassword();
outputTextStream << password << endl;
return EXIT_SUCCESS;
}
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