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Clementine-audio-player-Mac.../src/core/utilities.cpp

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/* This file is part of Clementine.
Copyright 2010-2014, David Sansome <me@davidsansome.com>
Copyright 2010-2012, 2014, John Maguire <john.maguire@gmail.com>
Copyright 2011, 2014, Arnaud Bienner <arnaud.bienner@gmail.com>
Copyright 2012, Alan Briolat <alan.briolat@gmail.com>
Copyright 2012, Veniamin Gvozdikov <G.Veniamin@gmail.com>
Copyright 2013-2014, Andreas <asfa194@gmail.com>
Copyright 2013, Glad Olus <gladolus@gmx.com>
Copyright 2013, graehl <graehl@gmail.com>
Copyright 2014, vkrishtal <krishtalhost@gmail.com>
Copyright 2014, Krzysztof Sobiecki <sobkas@gmail.com>
Clementine 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.
Clementine 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 Clementine. If not, see <http://www.gnu.org/licenses/>.
*/
#include "utilities.h"
#include <stdlib.h>
#include <QApplication>
#include <QDateTime>
#include <QDesktopServices>
#include <QDir>
#include <QFile>
#include <QIODevice>
#include <QMetaEnum>
#include <QMouseEvent>
#include <QStringList>
#include <QTcpServer>
#include <QTemporaryFile>
#include <QUrl>
#include <QUrlQuery>
#include <QWidget>
#include <QXmlStreamReader>
#include <QtDebug>
#include <QtGlobal>
#include <memory>
#include "config.h"
#include "core/application.h"
#include "core/logging.h"
#include "core/timeconstants.h"
#if (QT_VERSION >= QT_VERSION_CHECK(5, 10, 0))
#include <QRandomGenerator>
#endif
#if defined(Q_OS_UNIX)
#include <sys/statvfs.h>
#elif defined(Q_OS_WIN32)
#include <windows.h>
#include <QProcess>
#endif
#ifdef Q_OS_LINUX
#include <sys/syscall.h>
#include <unistd.h>
#endif
#ifdef Q_OS_DARWIN
#include <sys/resource.h>
#endif
#ifdef Q_OS_DARWIN
#include <QProcess>
#include "CoreServices/CoreServices.h"
#include "IOKit/ps/IOPSKeys.h"
#include "IOKit/ps/IOPowerSources.h"
#include "core/mac_startup.h"
#include "core/mac_utilities.h"
#include "core/scoped_cftyperef.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, bool always_show_hours) {
// 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 || always_show_hours)
ret = QString::asprintf("%d:%02d:%02d", hours, minutes,
seconds); // NOLINT(runtime/printf)
else
ret = QString::asprintf("%d:%02d", minutes,
seconds); // NOLINT(runtime/printf)
return ret;
}
QString PrettyTimeNanosec(qint64 nanoseconds, bool always_show_hours) {
return PrettyTime(nanoseconds / kNsecPerSec, always_show_hours);
}
QString WordyTime(quint64 seconds) {
quint64 days = seconds / (kSecsPerDay);
quint64 remaining_hours = (seconds - days * kSecsPerDay) / (60 * 60);
// TODO(David Sansome): Make the plural rules translatable
QStringList parts;
if (days) parts << (days == 1 ? tr("1 day") : tr("%1 days").arg(days));
// Since PrettyTime does not return the hour if it is 0, we need to add it
// explicitly for durations longer than 1 day.
parts << (days && !remaining_hours ? QString("0:") : QString()) +
PrettyTime(seconds - days * kSecsPerDay);
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 = QString::asprintf(
"%.1f KB",
static_cast<float>(bytes) / 1000); // NOLINT(runtime/printf)
else if (bytes <= 1000 * 1000 * 1000)
ret = QString::asprintf(
"%.1f MB",
static_cast<float>(bytes) / (1000 * 1000)); // NOLINT(runtime/printf)
else
ret = QString::asprintf(
"%.1f GB",
static_cast<float>(bytes) /
(1000 * 1000 * 1000)); // NOLINT(runtime/printf)
}
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;
}
QString GetTemporaryFileName() {
QString file;
{
QTemporaryFile tempfile;
// Do not delete the file, we want to do something with it
tempfile.setAutoRemove(false);
tempfile.open();
file = tempfile.fileName();
}
return file;
}
QString SaveToTemporaryFile(const QByteArray& data) {
QTemporaryFile tempfile;
tempfile.setAutoRemove(false);
if (!tempfile.open()) {
return QString();
}
if (tempfile.write(data) != data.size()) {
tempfile.remove();
return QString();
}
tempfile.close();
return tempfile.fileName();
}
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;
}
return dir.rmdir(path);
}
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());
}
QString GetConfigPath(ConfigPath config) {
switch (config) {
case Path_Root: {
if (Application::IsPortable()) {
QDir d(QCoreApplication::applicationDirPath());
return d.filePath(Application::kPortableDataDir);
}
#ifdef Q_OS_DARWIN
return mac::GetApplicationSupportPath() + "/" +
QCoreApplication::organizationName();
#else
return QString("%1/%2").arg(
QStandardPaths::writableLocation(QStandardPaths::ConfigLocation),
QCoreApplication::organizationName());
#endif
} break;
case Path_CacheRoot: {
if (Application::kIsPortable) {
return GetConfigPath(Path_Root) + "/cache";
}
#if defined(Q_OS_UNIX) && !defined(Q_OS_DARWIN)
return QString("%1/%2").arg(QStandardPaths::writableLocation(
QStandardPaths::GenericCacheLocation),
QCoreApplication::organizationName());
#else
return GetConfigPath(Path_Root);
#endif
} break;
case Path_Icons:
return GetConfigPath(Path_Root) + "/customiconset";
case Path_AlbumCovers:
return GetConfigPath(Path_Root) + "/albumcovers";
case Path_NetworkCache:
return GetConfigPath(Path_CacheRoot) + "/networkcache";
case Path_MoodbarCache:
return GetConfigPath(Path_CacheRoot) + "/moodbarcache";
case Path_PixmapCache:
return GetConfigPath(Path_CacheRoot) + "/pixmapcache";
case Path_GstreamerRegistry:
return GetConfigPath(Path_Root) +
QString("/gst-registry-%1-bin")
.arg(QCoreApplication::applicationVersion());
case Path_DefaultMusicLibrary:
#ifdef Q_OS_DARWIN
return mac::GetMusicDirectory();
#else
return QDir::homePath();
#endif
case Path_LocalSpotifyBlob:
return GetConfigPath(Path_Root) + "/spotifyblob";
default:
qFatal("%s", Q_FUNC_INFO);
return QString();
}
}
#ifdef Q_OS_DARWIN
// 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_DARWIN
#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_DARWIN
// 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, static_cast<char>(0x36));
QByteArray outer_padding(kBlockSize, static_cast<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());
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 {
#if (QT_VERSION < QT_VERSION_CHECK(5, 10, 0))
const quint16 port = 49152 + qrand() % 16384;
#else
const quint16 port = QRandomGenerator::global()->bounded(49152, 65536);
#endif
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_DARWIN)
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_MAC)
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
}
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;
}
bool UrlOnSameDriveAsClementine(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 GetRelativePathToClementineBin(const QUrl& url) {
QString relPath = GetRelativePathToClementineBin(url.toLocalFile());
QUrl rel_url = QUrl::fromLocalFile(relPath);
// QUrl considers a URL relative if the schema is omitted.
rel_url.setScheme(QString());
return rel_url;
}
QString GetRelativePathToClementineBin(const QString& abspath) {
QDir appPath(QCoreApplication::applicationDirPath());
return appPath.relativeFilePath(abspath);
}
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;
}
QByteArray GetUriForGstreamer(const QUrl& url) {
if (url.scheme() == "file") {
QString local_file = url.toLocalFile();
if (local_file.indexOf("//") == 0) {
// Exclude / from encoding.
return QByteArray("file://") + QUrl::toPercentEncoding(local_file, "/");
}
}
return url.toEncoded();
}
QString ScrubUrlQueries(const QString& str) {
// If the URL isn't followed by whitespace, this will eat extra characters.
QRegExp rx("((?:http|https)://\\S*\\?)\\S*");
// QString::replace is non const, so operate on a copy.
return QString(str).replace(rx, "\\1 (query removed)");
}
QString MakeBugReportUrl(const QString& title) {
// Example:
// https://github.com/clementine-player/Clementine/issues/new?title=New%20bug
QUrl url("https://github.com/clementine-player/Clementine/issues/new");
QUrlQuery query;
query.addQueryItem("title", title);
url.setQuery(query);
return url.toString(QUrl::FullyEncoded);
}
} // 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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