add diceware and passgen to the cli interface

src/cli/Diceware.cpp

@@ -0,0 +1,79 @@
+/*
+ *  Copyright (C) 2018 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 "Diceware.h"
+
+#include <QCommandLineParser>
+#include <QTextStream>
+
+#include "core/PassphraseGenerator.h"
+
+Diceware::Diceware()
+{
+    this->name = QString("diceware");
+    this->description = QObject::tr("Generate a new random password.");
+}
+
+Diceware::~Diceware()
+{
+}
+
+int Diceware::execute(QStringList arguments)
+{
+    QTextStream inputTextStream(stdin, QIODevice::ReadOnly);
+    QTextStream outputTextStream(stdout, QIODevice::WriteOnly);
+
+    QCommandLineParser parser;
+    parser.setApplicationDescription(this->description);
+    QCommandLineOption wordlistFile(QStringList() << "w"
+                                             << "wordlist",
+                               QObject::tr("Wordlist fot the diceware generator.\n[Default: EFF English]"),
+                               QObject::tr("path"));
+    parser.addOption(wordlistFile);
+    parser.addPositionalArgument("words", QObject::tr("Word count for the diceware generator."));
+    parser.process(arguments);
+
+    const QStringList args = parser.positionalArguments();
+    if (args.size() != 1) {
+        outputTextStream << parser.helpText().replace("keepassxc-cli", "keepassxc-cli diceware");
+        return EXIT_FAILURE;
+    }
+
+    PassphraseGenerator dicewareGenerator;
+
+    int words = args.at(0).toInt();
+    dicewareGenerator.setWordCount(words);
+
+    if (!parser.value(wordlistFile).isEmpty()) {
+        dicewareGenerator.setWordList(parser.value(wordlistFile));
+    } else {
+        dicewareGenerator.setDefaultWordList();
+    }
+
+    if (!dicewareGenerator.isValid()) {
+        outputTextStream << parser.helpText().replace("keepassxc-cli", "keepassxc-cli passgen");
+        return EXIT_FAILURE;
+    }
+    
+    QString password = dicewareGenerator.generatePassphrase();
+    outputTextStream << password << endl;
+
+    return EXIT_SUCCESS;
+}