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strawberry-audio-player-win.../src/core/utilities.cpp

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/*
* Strawberry Music Player
* This file was part of Clementine.
* Copyright 2010, David Sansome <me@davidsansome.com>
* Copyright 2018, Jonas Kvinge <jonas@jkvinge.net>
*
* Strawberry 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 3 of the License, or
* (at your option) any later version.
*
* Strawberry 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 Strawberry. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "config.h"
#include <memory>
#include <stdlib.h>
#include <QtGlobal>
#include <QApplication>
#include <QCoreApplication>
#include <QWidget>
#include <QObject>
#include <QIODevice>
#include <QByteArray>
#include <QMetaObject>
#include <QChar>
#include <QCryptographicHash>
#include <QDate>
#include <QDateTime>
#include <QDesktopServices>
#include <QDir>
#include <QFile>
#include <QFileInfo>
#include <QHostAddress>
#include <QPoint>
#include <QRect>
#include <QSize>
#include <QMap>
#include <QList>
#include <QSet>
#include <QString>
#include <QStringList>
#include <QRegExp>
#include <QTcpServer>
#include <QTemporaryFile>
#include <QUrl>
#include <QMetaEnum>
#include <QXmlStreamReader>
#include <QSettings>
#include <QtEvents>
#include <QtDebug>
#ifdef HAVE_TRANSLATIONS
# include <QTranslator>
#endif
#ifdef Q_OS_LINUX
# include <unistd.h>
# include <sys/syscall.h>
#endif
#ifdef Q_OS_MACOS
# include <sys/resource.h>
# include <sys/sysctl.h>
# include <sys/param.h>
#endif
#if defined(Q_OS_UNIX)
# include <sys/statvfs.h>
#elif defined(Q_OS_WIN)
# include <windows.h>
#endif
#ifdef Q_OS_MACOS
# include <QProcess>
# include "CoreServices/CoreServices.h"
# include "IOKit/ps/IOPSKeys.h"
# include "IOKit/ps/IOPowerSources.h"
#elif defined(Q_OS_WIN)
#include <QProcess>
#endif
#include "core/logging.h"
#include "utilities.h"
#include "timeconstants.h"
#include "application.h"
#ifdef Q_OS_MACOS
# include "mac_startup.h"
# include "mac_utilities.h"
# include "scoped_cftyperef.h"
#endif
#ifdef HAVE_TRANSLATIONS
# include "potranslator.h"
#endif
namespace Utilities {
static QString tr(const char *str) {
return QCoreApplication::translate("", str);
}
QString PrettyTimeDelta(int seconds) {
return (seconds >= 0 ? "+" : "-") + PrettyTime(seconds);
}
QString PrettyTime(int seconds) {
// last.fm sometimes gets the track length wrong, so you end up with negative times.
seconds = qAbs(seconds);
int hours = seconds / (60 * 60);
int minutes = (seconds / 60) % 60;
seconds %= 60;
QString ret;
if (hours) ret.sprintf("%d:%02d:%02d", hours, minutes, seconds);
else ret.sprintf("%d:%02d", minutes, seconds);
return ret;
}
QString PrettyTimeNanosec(qint64 nanoseconds) {
return PrettyTime(nanoseconds / kNsecPerSec);
}
QString WordyTime(quint64 seconds) {
quint64 days = seconds / (60 * 60 * 24);
// TODO: Make the plural rules translatable
QStringList parts;
if (days) parts << (days == 1 ? tr("1 day") : tr("%1 days").arg(days));
parts << PrettyTime(seconds - days * 60 * 60 * 24);
return parts.join(" ");
}
QString WordyTimeNanosec(qint64 nanoseconds) {
return WordyTime(nanoseconds / kNsecPerSec);
}
QString Ago(int seconds_since_epoch, const QLocale &locale) {
const QDateTime now = QDateTime::currentDateTime();
const QDateTime then = QDateTime::fromTime_t(seconds_since_epoch);
const int days_ago = then.date().daysTo(now.date());
const QString time = then.time().toString(locale.timeFormat(QLocale::ShortFormat));
if (days_ago == 0) return tr("Today") + " " + time;
if (days_ago == 1) return tr("Yesterday") + " " + time;
if (days_ago <= 7) return tr("%1 days ago").arg(days_ago);
return then.date().toString(locale.dateFormat(QLocale::ShortFormat));
}
QString PrettyFutureDate(const QDate &date) {
const QDate now = QDate::currentDate();
const int delta_days = now.daysTo(date);
if (delta_days < 0) return QString();
if (delta_days == 0) return tr("Today");
if (delta_days == 1) return tr("Tomorrow");
if (delta_days <= 7) return tr("In %1 days").arg(delta_days);
if (delta_days <= 14) return tr("Next week");
return tr("In %1 weeks").arg(delta_days / 7);
}
QString PrettySize(quint64 bytes) {
QString ret;
if (bytes > 0) {
if (bytes <= 1000)
ret = QString::number(bytes) + " bytes";
else if (bytes <= 1000 * 1000)
ret.sprintf("%.1f KB", float(bytes) / 1000);
else if (bytes <= 1000 * 1000 * 1000)
ret.sprintf("%.1f MB", float(bytes) / (1000 * 1000));
else
ret.sprintf("%.1f GB", float(bytes) / (1000 * 1000 * 1000));
}
return ret;
}
quint64 FileSystemCapacity(const QString &path) {
#if defined(Q_OS_UNIX)
struct statvfs fs_info;
if (statvfs(path.toLocal8Bit().constData(), &fs_info) == 0)
return quint64(fs_info.f_blocks) * quint64(fs_info.f_bsize);
#elif defined(Q_OS_WIN32)
_ULARGE_INTEGER ret;
if (GetDiskFreeSpaceEx(QDir::toNativeSeparators(path).toLocal8Bit().constData(), nullptr,&ret, nullptr) != 0)
return ret.QuadPart;
#endif
return 0;
}
quint64 FileSystemFreeSpace(const QString &path) {
#if defined(Q_OS_UNIX)
struct statvfs fs_info;
if (statvfs(path.toLocal8Bit().constData(), &fs_info) == 0)
return quint64(fs_info.f_bavail) * quint64(fs_info.f_bsize);
#elif defined(Q_OS_WIN32)
_ULARGE_INTEGER ret;
if (GetDiskFreeSpaceEx(QDir::toNativeSeparators(path).toLocal8Bit().constData(), &ret, nullptr, nullptr) != 0)
return ret.QuadPart;
#endif
return 0;
}
QString MakeTempDir(const QString template_name) {
QString path;
{
QTemporaryFile tempfile;
if (!template_name.isEmpty()) tempfile.setFileTemplate(template_name);
tempfile.open();
path = tempfile.fileName();
}
QDir d;
d.mkdir(path);
return path;
}
bool RemoveRecursive(const QString &path) {
QDir dir(path);
for (const QString &child : dir.entryList(QDir::NoDotAndDotDot | QDir::Dirs | QDir::Hidden)) {
if (!RemoveRecursive(path + "/" + child))
return false;
}
for (const QString &child : dir.entryList(QDir::NoDotAndDotDot | QDir::Files | QDir::Hidden)) {
if (!QFile::remove(path + "/" + child))
return false;
}
if (!dir.rmdir(path)) return false;
return true;
}
bool CopyRecursive(const QString &source, const QString &destination) {
// Make the destination directory
QString dir_name = source.section('/', -1, -1);
QString dest_path = destination + "/" + dir_name;
QDir().mkpath(dest_path);
QDir dir(source);
for (const QString &child : dir.entryList(QDir::NoDotAndDotDot | QDir::Dirs)) {
if (!CopyRecursive(source + "/" + child, dest_path)) {
qLog(Warning) << "Failed to copy dir" << source + "/" + child << "to" << dest_path;
return false;
}
}
for (const QString &child : dir.entryList(QDir::NoDotAndDotDot | QDir::Files)) {
if (!QFile::copy(source + "/" + child, dest_path + "/" + child)) {
qLog(Warning) << "Failed to copy file" << source + "/" + child << "to" << dest_path;
return false;
}
}
return true;
}
bool Copy(QIODevice *source, QIODevice *destination) {
if (!source->open(QIODevice::ReadOnly)) return false;
if (!destination->open(QIODevice::WriteOnly)) return false;
const qint64 bytes = source->size();
std::unique_ptr<char[]> data(new char[bytes]);
qint64 pos = 0;
qint64 bytes_read;
do {
bytes_read = source->read(data.get() + pos, bytes - pos);
if (bytes_read == -1) return false;
pos += bytes_read;
} while (bytes_read > 0 && pos != bytes);
pos = 0;
qint64 bytes_written;
do {
bytes_written = destination->write(data.get() + pos, bytes - pos);
if (bytes_written == -1) return false;
pos += bytes_written;
} while (bytes_written > 0 && pos != bytes);
return true;
}
QString ColorToRgba(const QColor &c) {
return QString("rgba(%1, %2, %3, %4)")
.arg(c.red())
.arg(c.green())
.arg(c.blue())
.arg(c.alpha());
}
#ifdef Q_OS_MACOS
qint32 GetMacOsVersion() {
SInt32 minor_version;
Gestalt(gestaltSystemVersionMinor, &minor_version);
return minor_version;
}
// Better than openUrl(dirname(path)) - also highlights file at path
void RevealFileInFinder(QString const &path) {
QProcess::execute("/usr/bin/open", QStringList() << "-R" << path);
}
#endif // Q_OS_MACOS
#ifdef Q_OS_WIN
void ShowFileInExplorer(QString const &path) {
QProcess::execute("explorer.exe", QStringList() << "/select," << QDir::toNativeSeparators(path));
}
#endif
void OpenInFileBrowser(const QList<QUrl> &urls) {
QSet<QString> dirs;
for (const QUrl &url : urls) {
if (url.scheme() != "file") {
continue;
}
QString path = url.toLocalFile();
if (!QFile::exists(path)) continue;
const QString directory = QFileInfo(path).dir().path();
if (dirs.contains(directory)) continue;
dirs.insert(directory);
qLog(Debug) << path;
#ifdef Q_OS_MACOS
// Revealing multiple files in the finder only opens one window, so it also makes sense to reveal at most one per directory
RevealFileInFinder(path);
#elif defined(Q_OS_WIN32)
ShowFileInExplorer(path);
#else
QDesktopServices::openUrl(QUrl::fromLocalFile(directory));
#endif
}
}
QByteArray Hmac(const QByteArray &key, const QByteArray &data, HashFunction method) {
const int kBlockSize = 64; // bytes
Q_ASSERT(key.length() <= kBlockSize);
QByteArray inner_padding(kBlockSize, char(0x36));
QByteArray outer_padding(kBlockSize, char(0x5c));
for (int i = 0; i < key.length(); ++i) {
inner_padding[i] = inner_padding[i] ^ key[i];
outer_padding[i] = outer_padding[i] ^ key[i];
}
if (Md5_Algo == method) {
return QCryptographicHash::hash(outer_padding + QCryptographicHash::hash(inner_padding + data, QCryptographicHash::Md5), QCryptographicHash::Md5);
}
else if (Sha1_Algo == method) {
return QCryptographicHash::hash(outer_padding + QCryptographicHash::hash(inner_padding + data, QCryptographicHash::Sha1), QCryptographicHash::Sha1);
}
else { // Sha256_Algo, currently default
return QCryptographicHash::hash(outer_padding + QCryptographicHash::hash(inner_padding + data, QCryptographicHash::Sha256), QCryptographicHash::Sha256);
}
}
QByteArray HmacSha256(const QByteArray &key, const QByteArray &data) {
return Hmac(key, data, Sha256_Algo);
}
QByteArray HmacMd5(const QByteArray &key, const QByteArray &data) {
return Hmac(key, data, Md5_Algo);
}
QByteArray HmacSha1(const QByteArray &key, const QByteArray &data) {
return Hmac(key, data, Sha1_Algo);
}
// File must not be open and will be closed afterwards!
QByteArray Sha1File(QFile &file) {
file.open(QIODevice::ReadOnly);
QCryptographicHash hash(QCryptographicHash::Sha1);
QByteArray data;
while (!file.atEnd()) {
data = file.read(1000000); // 1 mib
hash.addData(data.data(), data.length());
data.clear();
}
file.close();
return hash.result();
}
QByteArray Sha1CoverHash(const QString &artist, const QString &album) {
QCryptographicHash hash(QCryptographicHash::Sha1);
hash.addData(artist.toLower().toUtf8().constData());
hash.addData(album.toLower().toUtf8().constData());
//qLog(Debug) << artist << album << hash.result();
return hash.result();
}
QString PrettySize(const QSize &size) {
return QString::number(size.width()) + "x" + QString::number(size.height());
}
void ForwardMouseEvent(const QMouseEvent *e, QWidget *target) {
QMouseEvent c(e->type(), target->mapFromGlobal(e->globalPos()), e->globalPos(), e->button(), e->buttons(), e->modifiers());
QApplication::sendEvent(target, &c);
}
bool IsMouseEventInWidget(const QMouseEvent *e, const QWidget *widget) {
return widget->rect().contains(widget->mapFromGlobal(e->globalPos()));
}
quint16 PickUnusedPort() {
forever {
const quint16 port = 49152 + qrand() % 16384;
QTcpServer server;
if (server.listen(QHostAddress::Any, port)) {
return port;
}
}
}
void ConsumeCurrentElement(QXmlStreamReader *reader) {
int level = 1;
while (level != 0 && !reader->atEnd()) {
switch (reader->readNext()) {
case QXmlStreamReader::StartElement: ++level; break;
case QXmlStreamReader::EndElement: --level; break;
default: break;
}
}
}
bool ParseUntilElement(QXmlStreamReader *reader, const QString &name) {
while (!reader->atEnd()) {
QXmlStreamReader::TokenType type = reader->readNext();
switch (type) {
case QXmlStreamReader::StartElement:
if (reader->name() == name) {
return true;
}
break;
default:
break;
}
}
return false;
}
QDateTime ParseRFC822DateTime(const QString &text) {
QRegExp regexp("(\\d{1,2}) (\\w{3,12}) (\\d+) (\\d{1,2}):(\\d{1,2}):(\\d{1,2})");
if (regexp.indexIn(text) == -1) {
return QDateTime();
}
enum class MatchNames { DAYS = 1, MONTHS, YEARS, HOURS, MINUTES, SECONDS };
QMap<QString, int> monthmap;
monthmap["Jan"] = 1;
monthmap["Feb"] = 2;
monthmap["Mar"] = 3;
monthmap["Apr"] = 4;
monthmap["May"] = 5;
monthmap["Jun"] = 6;
monthmap["Jul"] = 7;
monthmap["Aug"] = 8;
monthmap["Sep"] = 9;
monthmap["Oct"] = 10;
monthmap["Nov"] = 11;
monthmap["Dec"] = 12;
monthmap["January"] = 1;
monthmap["February"] = 2;
monthmap["March"] = 3;
monthmap["April"] = 4;
monthmap["May"] = 5;
monthmap["June"] = 6;
monthmap["July"] = 7;
monthmap["August"] = 8;
monthmap["September"] = 9;
monthmap["October"] = 10;
monthmap["November"] = 11;
monthmap["December"] = 12;
const QDate date(regexp.cap(static_cast<int>(MatchNames::YEARS)).toInt(), monthmap[regexp.cap(static_cast<int>(MatchNames::MONTHS))], regexp.cap(static_cast<int>(MatchNames::DAYS)).toInt());
const QTime time(regexp.cap(static_cast<int>(MatchNames::HOURS)).toInt(), regexp.cap(static_cast<int>(MatchNames::MINUTES)).toInt(), regexp.cap(static_cast<int>(MatchNames::SECONDS)).toInt());
return QDateTime(date, time);
}
const char *EnumToString(const QMetaObject &meta, const char *name, int value) {
int index = meta.indexOfEnumerator(name);
if (index == -1) return "[UnknownEnum]";
QMetaEnum metaenum = meta.enumerator(index);
const char *result = metaenum.valueToKey(value);
if (result == 0) return "[UnknownEnumValue]";
return result;
}
QStringList Prepend(const QString &text, const QStringList &list) {
QStringList ret(list);
for (int i = 0; i < ret.count(); ++i) ret[i].prepend(text);
return ret;
}
QStringList Updateify(const QStringList &list) {
QStringList ret(list);
for (int i = 0; i < ret.count(); ++i) ret[i].prepend(ret[i] + " = :");
return ret;
}
QString DecodeHtmlEntities(const QString &text) {
QString copy(text);
copy.replace("&amp;", "&");
copy.replace("&quot;", "\"");
copy.replace("&apos;", "'");
copy.replace("&lt;", "<");
copy.replace("&gt;", ">");
return copy;
}
int SetThreadIOPriority(IoPriority priority) {
#ifdef Q_OS_LINUX
return syscall(SYS_ioprio_set, IOPRIO_WHO_PROCESS, GetThreadId(), 4 | priority << IOPRIO_CLASS_SHIFT);
#elif defined(Q_OS_MACOS)
return setpriority(PRIO_DARWIN_THREAD, 0, priority == IOPRIO_CLASS_IDLE ? PRIO_DARWIN_BG : 0);
#else
return 0;
#endif
}
int GetThreadId() {
#ifdef Q_OS_LINUX
return syscall(SYS_gettid);
#else
return 0;
#endif
}
bool IsLaptop() {
#ifdef Q_OS_WIN
SYSTEM_POWER_STATUS status;
if (!GetSystemPowerStatus(&status)) {
return false;
}
return !(status.BatteryFlag & 128); // 128 = no system battery
#elif defined(Q_OS_LINUX)
return !QDir("/proc/acpi/battery").entryList(QDir::Dirs | QDir::NoDotAndDotDot).isEmpty();
#elif defined(Q_OS_MACOS)
ScopedCFTypeRef<CFTypeRef> power_sources(IOPSCopyPowerSourcesInfo());
ScopedCFTypeRef<CFArrayRef> power_source_list(IOPSCopyPowerSourcesList(power_sources.get()));
for (CFIndex i = 0; i < CFArrayGetCount(power_source_list.get()); ++i) {
CFTypeRef ps = CFArrayGetValueAtIndex(power_source_list.get(), i);
CFDictionaryRef description = IOPSGetPowerSourceDescription(power_sources.get(), ps);
if (CFDictionaryContainsKey(description, CFSTR(kIOPSBatteryHealthKey))) {
return true;
}
}
return false;
#else
return false;
#endif
}
bool UrlOnSameDriveAsStrawberry(const QUrl &url) {
if (url.scheme() != "file") return false;
#ifdef Q_OS_WIN
QUrl appUrl = QUrl::fromLocalFile(QCoreApplication::applicationDirPath());
if (url.toLocalFile().left(1) == appUrl.toLocalFile().left(1))
return true;
else
return false;
#else
// Non windows systems have always a / in the path
return true;
#endif
}
QUrl GetRelativePathToStrawberryBin(const QUrl &url) {
QDir appPath(QCoreApplication::applicationDirPath());
return QUrl::fromLocalFile(appPath.relativeFilePath(url.toLocalFile()));
}
QString PathWithoutFilenameExtension(const QString &filename) {
if (filename.section('/', -1, -1).contains('.')) return filename.section('.', 0, -2);
return filename;
}
QString FiddleFileExtension(const QString &filename, const QString &new_extension) {
return PathWithoutFilenameExtension(filename) + "." + new_extension;
}
QString GetEnv(const QString &key) {
return QString::fromLocal8Bit(qgetenv(key.toLocal8Bit()));
}
void SetEnv(const char *key, const QString &value) {
#ifdef Q_OS_WIN32
putenv(QString("%1=%2").arg(key, value).toLocal8Bit().constData());
#else
setenv(key, value.toLocal8Bit().constData(), 1);
#endif
}
void IncreaseFDLimit() {
#ifdef Q_OS_MACOS
// Bump the soft limit for the number of file descriptors from the default of 256 to the maximum (usually 10240).
struct rlimit limit;
getrlimit(RLIMIT_NOFILE, &limit);
// getrlimit() lies about the hard limit so we have to check sysctl.
int max_fd = 0;
size_t len = sizeof(max_fd);
sysctlbyname("kern.maxfilesperproc", &max_fd, &len, nullptr, 0);
limit.rlim_cur = max_fd;
int ret = setrlimit(RLIMIT_NOFILE, &limit);
if (ret == 0) {
qLog(Debug) << "Max fd:" << max_fd;
}
#endif
}
void CheckPortable() {
QFile f(QApplication::applicationDirPath() + QDir::separator() + "data");
if (f.exists()) {
// We are portable. Set the bool and change the qsettings path
Application::kIsPortable = true;
QSettings::setDefaultFormat(QSettings::IniFormat);
QSettings::setPath(QSettings::IniFormat, QSettings::UserScope, f.fileName());
}
}
QString GetRandomStringWithChars(const int len) {
const QString UseCharacters("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz");
return GetRandomString(len, UseCharacters);
}
QString GetRandomStringWithCharsAndNumbers(const int len) {
const QString UseCharacters("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789");
return GetRandomString(len, UseCharacters);
}
QString GetRandomString(const int len, const QString &UseCharacters) {
QString randstr;
for(int i=0 ; i < len ; ++i) {
int index = qrand() % UseCharacters.length();
QChar nextchar = UseCharacters.at(index);
randstr.append(nextchar);
}
return randstr;
}
QString DesktopEnvironment() {
const QString de = GetEnv("XDG_CURRENT_DESKTOP");
if (!de.isEmpty()) return de;
if (!qEnvironmentVariableIsEmpty("KDE_FULL_SESSION")) return "KDE";
if (!qEnvironmentVariableIsEmpty("GNOME_DESKTOP_SESSION_ID")) return "Gnome";
QString session = GetEnv("DESKTOP_SESSION");
int slash = session.lastIndexOf('/');
if (slash != -1) {
QSettings desktop_file(QString(session + ".desktop"), QSettings::IniFormat);
desktop_file.beginGroup("Desktop Entry");
QString name = desktop_file.value("DesktopNames").toString();
desktop_file.endGroup();
if (!name.isEmpty()) return name;
session = session.mid(slash + 1);
}
if (session == "kde") return "KDE";
else if (session == "gnome") return "Gnome";
else if (session == "xfce") return "XFCE";
return "Unknown";
}
#ifdef HAVE_TRANSLATIONS
QString SystemLanguageName() {
QString system_language = QLocale::system().uiLanguages().empty() ? QLocale::system().name() : QLocale::system().uiLanguages().first();
// uiLanguages returns strings with "-" as separators for language/region; however QTranslator needs "_" separators
system_language.replace("-", "_");
return system_language;
}
void LoadTranslation(const QString &prefix, const QString &path, const QString &language) {
QTranslator *t = new PoTranslator;
if (t->load(prefix + "_" + language, path))
QCoreApplication::installTranslator(t);
else
delete t;
}
#endif
} // namespace Utilities
ScopedWCharArray::ScopedWCharArray(const QString &str)
: chars_(str.length()), data_(new wchar_t[chars_ + 1]) {
str.toWCharArray(data_.get());
data_[chars_] = '\0';
}
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