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/*
* 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 "TextStream.h"
#include <QProcessEnvironment>
#include <QTextCodec>
#ifdef Q_OS_WIN
#include <windows.h>
#endif
TextStream::TextStream()
{
detectCodec();
}
TextStream::TextStream(QIODevice* device)
: QTextStream(device)
{
detectCodec();
}
TextStream::TextStream(FILE* fileHandle, QIODevice::OpenMode openMode)
: QTextStream(fileHandle, openMode)
{
detectCodec();
}
TextStream::TextStream(QString* string, QIODevice::OpenMode openMode)
: QTextStream(string, openMode)
{
detectCodec();
}
TextStream::TextStream(QByteArray* array, QIODevice::OpenMode openMode)
: QTextStream(array, openMode)
{
detectCodec();
}
TextStream::TextStream(const QByteArray& array, QIODevice::OpenMode openMode)
: QTextStream(array, openMode)
{
detectCodec();
}
void TextStream::detectCodec()
{
QString codecName = "UTF-8";
auto env = QProcessEnvironment::systemEnvironment();
#ifdef Q_OS_WIN
WINBOOL success = false;
#ifdef CP_UTF8
success = SetConsoleOutputCP(CP_UTF8);
#endif
if (!success && !env.contains("SHELL")) {
// Fall back to cp850 if this is Windows without CP_UTF8 and we
// are running in a native shell (i.e., no Msys or Cygwin).
codecName = "Windows-850";
}
#else
if (env.contains("LANG") && !env.value("LANG").isEmpty() && env.value("LANG") != "C") {
// Only override codec if LANG is set, otherwise Qt will assume
// US-ASCII, which is almost always wrong and results in
// Unicode passwords being displayed as question marks.
codecName = QTextCodec::codecForLocale()->name();
}
#endif
codecName = env.value("ENCODING_OVERRIDE", codecName);
auto* codec = QTextCodec::codecForName(codecName.toLatin1());
if (codec) {
setCodec(codec);
}
}
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