/***************************************************************************
- * Copyright (C) 2005-08 by the Quassel Project *
+ * Copyright (C) 2005-2019 by the Quassel Project *
* devel@quassel-irc.org *
* *
* This program is free software; you can redistribute it and/or modify *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#include "util.h"
+#include <algorithm>
+#include <array>
+#include <utility>
+
#include <QCoreApplication>
+#include <QDateTime>
#include <QDebug>
#include <QTextCodec>
-#include <QTranslator>
+#include <QVector>
#include "quassel.h"
-class QMetaMethod;
+// MIBenum values from http://www.iana.org/assignments/character-sets/character-sets.xml#table-character-sets-1
+static QList<int> utf8DetectionBlacklist = QList<int>() << 39 /* ISO-2022-JP */;
-QString nickFromMask(QString mask) {
- return mask.section('!', 0, 0);
+QString nickFromMask(const QString& mask)
+{
+ return mask.left(mask.indexOf('!'));
}
-QString userFromMask(QString mask) {
- QString userhost = mask.section('!', 1);
- if(userhost.isEmpty()) return QString();
- return userhost.section('@', 0, 0);
+QString userFromMask(const QString& mask)
+{
+ const int offset = mask.indexOf('!') + 1;
+ if (offset <= 0)
+ return {};
+ const int length = mask.indexOf('@', offset) - offset;
+ return mask.mid(offset, length >= 0 ? length : -1);
}
-QString hostFromMask(QString mask) {
- QString userhost = mask.section('!', 1);
- if(userhost.isEmpty()) return QString();
- return userhost.section('@', 1);
+QString hostFromMask(const QString& mask)
+{
+ const int excl = mask.indexOf('!');
+ if (excl < 0)
+ return {};
+ const int offset = mask.indexOf('@', excl + 1) + 1;
+ return offset > 0 && offset < mask.size() ? mask.mid(offset) : QString{};
}
-bool isChannelName(QString str) {
- return QString("#&!+").contains(str[0]);
+bool isChannelName(const QString& str)
+{
+ if (str.isEmpty())
+ return false;
+ static constexpr std::array<quint8, 4> prefixes{{'#', '&', '!', '+'}};
+ return std::any_of(prefixes.cbegin(), prefixes.cend(), [&str](quint8 c) { return c == str[0]; });
}
-QString stripFormatCodes(QString str) {
- str.remove(QRegExp("\x03(\\d\\d?(,\\d\\d?)?)?"));
- str.remove('\x02');
- str.remove('\x0f');
- str.remove('\x12');
- str.remove('\x16');
- str.remove('\x1d');
- str.remove('\x1f');
- return str;
+QString stripFormatCodes(QString message)
+{
+ static QRegExp regEx{"\x03(\\d\\d?(,\\d\\d?)?)?|\x04([\\da-fA-F]{6}(,[\\da-fA-F]{6})?)?|[\x02\x0f\x11\x12\x16\x1d\x1e\x1f]"};
+ return message.remove(regEx);
}
-QString decodeString(const QByteArray &input, QTextCodec *codec) {
- // First, we check if it's utf8. It is very improbable to encounter a string that looks like
- // valid utf8, but in fact is not. This means that if the input string passes as valid utf8, it
- // is safe to assume that it is.
- // Q_ASSERT(sizeof(const char) == sizeof(quint8)); // In God we trust...
- bool isUtf8 = true;
- int cnt = 0;
- for(int i = 0; i < input.size(); i++) {
- if(cnt) {
- // We check a part of a multibyte char. These need to be of the form 10yyyyyy.
- if((input[i] & 0xc0) != 0x80) { isUtf8 = false; break; }
- cnt--;
- continue;
+QString stripAcceleratorMarkers(const QString& label_)
+{
+ QString label = label_;
+ int p = 0;
+ forever
+ {
+ p = label.indexOf('&', p);
+ if (p < 0 || p + 1 >= label.length())
+ break;
+
+ if (label.at(p + 1).isLetterOrNumber() || label.at(p + 1) == '&')
+ label.remove(p, 1);
+
+ ++p;
}
- if((input[i] & 0x80) == 0x00) continue; // 7 bit is always ok
- if((input[i] & 0xf8) == 0xf0) { cnt = 3; continue; } // 4-byte char 11110xxx 10yyyyyy 10zzzzzz 10vvvvvv
- if((input[i] & 0xf0) == 0xe0) { cnt = 2; continue; } // 3-byte char 1110xxxx 10yyyyyy 10zzzzzz
- if((input[i] & 0xe0) == 0xc0) { cnt = 1; continue; } // 2-byte char 110xxxxx 10yyyyyy
- isUtf8 = false; break; // 8 bit char, but not utf8!
- }
- if(isUtf8 && cnt == 0) {
- QString s = QString::fromUtf8(input);
- //qDebug() << "Detected utf8:" << s;
- return s;
- }
- //QTextCodec *codec = QTextCodec::codecForName(encoding.toAscii());
- if(!codec) return QString::fromAscii(input);
- return codec->toUnicode(input);
+ return label;
}
-/* not needed anymore
-void writeDataToDevice(QIODevice *dev, const QVariant &item) {
- QByteArray block;
- QDataStream out(&block, QIODevice::WriteOnly);
- out.setVersion(QDataStream::Qt_4_2);
- out << (quint32)0 << item;
- out.device()->seek(0);
- out << (quint32)(block.size() - sizeof(quint32));
- dev->write(block);
+QString decodeString(const QByteArray& input, QTextCodec* codec)
+{
+ if (codec && utf8DetectionBlacklist.contains(codec->mibEnum()))
+ return codec->toUnicode(input);
+
+ // First, we check if it's utf8. It is very improbable to encounter a string that looks like
+ // valid utf8, but in fact is not. This means that if the input string passes as valid utf8, it
+ // is safe to assume that it is.
+ // Q_ASSERT(sizeof(const char) == sizeof(quint8)); // In God we trust...
+ bool isUtf8 = true;
+ int cnt = 0;
+ for (uchar c : input) {
+ if (cnt) {
+ // We check a part of a multibyte char. These need to be of the form 10yyyyyy.
+ if ((c & 0xc0) != 0x80) {
+ isUtf8 = false;
+ break;
+ }
+ cnt--;
+ continue;
+ }
+ if ((c & 0x80) == 0x00)
+ continue; // 7 bit is always ok
+ if ((c & 0xf8) == 0xf0) {
+ cnt = 3;
+ continue;
+ } // 4-byte char 11110xxx 10yyyyyy 10zzzzzz 10vvvvvv
+ if ((c & 0xf0) == 0xe0) {
+ cnt = 2;
+ continue;
+ } // 3-byte char 1110xxxx 10yyyyyy 10zzzzzz
+ if ((c & 0xe0) == 0xc0) {
+ cnt = 1;
+ continue;
+ } // 2-byte char 110xxxxx 10yyyyyy
+ isUtf8 = false;
+ break; // 8 bit char, but not utf8!
+ }
+ if (isUtf8 && cnt == 0) {
+ QString s = QString::fromUtf8(input);
+ // qDebug() << "Detected utf8:" << s;
+ return s;
+ }
+ // QTextCodec *codec = QTextCodec::codecForName(encoding.toLatin1());
+ if (!codec)
+ return QString::fromLatin1(input);
+ return codec->toUnicode(input);
}
-bool readDataFromDevice(QIODevice *dev, quint32 &blockSize, QVariant &item) {
- QDataStream in(dev);
- in.setVersion(QDataStream::Qt_4_2);
-
- if(blockSize == 0) {
- if(dev->bytesAvailable() < (int)sizeof(quint32)) return false;
- in >> blockSize;
- }
- if(dev->bytesAvailable() < blockSize) return false;
- in >> item;
- return true;
+uint editingDistance(const QString& s1, const QString& s2)
+{
+ uint n = s1.size() + 1;
+ uint m = s2.size() + 1;
+ QVector<QVector<uint>> matrix(n, QVector<uint>(m, 0));
+
+ for (uint i = 0; i < n; i++)
+ matrix[i][0] = i;
+
+ for (uint i = 0; i < m; i++)
+ matrix[0][i] = i;
+
+ uint min;
+ for (uint i = 1; i < n; i++) {
+ for (uint j = 1; j < m; j++) {
+ uint deleteChar = matrix[i - 1][j] + 1;
+ uint insertChar = matrix[i][j - 1] + 1;
+
+ if (deleteChar < insertChar)
+ min = deleteChar;
+ else
+ min = insertChar;
+
+ if (s1[i - 1] == s2[j - 1]) {
+ uint inheritChar = matrix[i - 1][j - 1];
+ if (inheritChar < min)
+ min = inheritChar;
+ }
+
+ matrix[i][j] = min;
+ }
+ }
+ return matrix[n - 1][m - 1];
}
-*/
-
-uint editingDistance(const QString &s1, const QString &s2) {
- uint n = s1.size()+1;
- uint m = s2.size()+1;
- QVector< QVector< uint > >matrix(n,QVector<uint>(m,0));
- for(uint i = 0; i < n; i++)
- matrix[i][0] = i;
-
- for(uint i = 0; i < m; i++)
- matrix[0][i] = i;
-
- uint min;
- for(uint i = 1; i < n; i++) {
- for(uint j = 1; j < m; j++) {
- uint deleteChar = matrix[i-1][j] + 1;
- uint insertChar = matrix[i][j-1] + 1;
-
- if(deleteChar < insertChar)
- min = deleteChar;
- else
- min = insertChar;
-
- if(s1[i-1] == s2[j-1]) {
- uint inheritChar = matrix[i-1][j-1];
- if(inheritChar < min)
- min = inheritChar;
- }
-
- matrix[i][j] = min;
+QString secondsToString(int timeInSeconds)
+{
+ static QVector<std::pair<int, QString>> timeUnit{std::make_pair(365 * 24 * 60 * 60,
+ QCoreApplication::translate("Quassel::secondsToString()", "year")),
+ std::make_pair(24 * 60 * 60,
+ QCoreApplication::translate("Quassel::secondsToString()", "day")),
+ std::make_pair(60 * 60, QCoreApplication::translate("Quassel::secondsToString()", "h")),
+ std::make_pair(60, QCoreApplication::translate("Quassel::secondsToString()", "min")),
+ std::make_pair(1, QCoreApplication::translate("Quassel::secondsToString()", "sec"))};
+
+ if (timeInSeconds != 0) {
+ QStringList returnString;
+ for (const auto& tu : timeUnit) {
+ int n = timeInSeconds / tu.first;
+ if (n > 0) {
+ returnString += QString("%1 %2").arg(QString::number(n), tu.second);
+ }
+ timeInSeconds = timeInSeconds % tu.first;
+ }
+ return returnString.join(", ");
}
- }
- return matrix[n-1][m-1];
-}
-QByteArray methodName(const QMetaMethod &method) {
- QByteArray sig(method.signature());
- return sig.left(sig.indexOf("("));
+ return QString("%1 %2").arg(QString::number(timeInSeconds), timeUnit.last().second);
}
-QDir quasselDir() {
- QString quasselDir;
- if(Quassel::isOptionSet("datadir")) {
- quasselDir = Quassel::optionValue("datadir");
- } else {
- // FIXME use QDesktopServices
-#ifdef Q_OS_WIN32
- quasselDir = qgetenv("APPDATA") + "/quassel/";
-#elif defined Q_WS_MAC
- quasselDir = QDir::homePath() + "/Library/Application Support/Quassel/";
-#else
- quasselDir = QDir::homePath() + "/.quassel/";
-#endif
- }
+QByteArray prettyDigest(const QByteArray& digest)
+{
+ QByteArray hexDigest = digest.toHex().toUpper();
+ QByteArray prettyDigest;
+ prettyDigest.fill(':', hexDigest.count() + (hexDigest.count() / 2) - 1);
- QDir qDir(quasselDir);
- if(!qDir.exists(quasselDir)) {
- if(!qDir.mkpath(quasselDir)) {
- qCritical() << "Unable to create Quassel data directory:" << qPrintable(qDir.absolutePath());
+ for (int i = 0; i * 2 < hexDigest.count(); i++) {
+ prettyDigest.replace(i * 3, 2, hexDigest.mid(i * 2, 2));
}
- }
-
- return qDir;
+ return prettyDigest;
}
-void loadTranslation(const QLocale &locale) {
- QTranslator *qtTranslator = QCoreApplication::instance()->findChild<QTranslator *>("QtTr");
- QTranslator *quasselTranslator = QCoreApplication::instance()->findChild<QTranslator *>("QuasselTr");
- Q_ASSERT(qtTranslator);
- Q_ASSERT(quasselTranslator);
-
- QLocale::setDefault(locale);
+QString formatCurrentDateTimeInString(const QString& formatStr)
+{
+ // Work on a copy of the string to avoid modifying the input string
+ QString formattedStr = QString(formatStr);
+
+ // Exit early if there's nothing to format
+ if (formattedStr.isEmpty())
+ return formattedStr;
+
+ // Find %%<text>%% in string. Replace inside text formatted to QDateTime with the current
+ // timestamp, using %%%% as an escape for multiple %% signs.
+ // For example:
+ // Simple: "All Quassel clients vanished from the face of the earth... %%hh:mm:ss%%"
+ // > Result: "All Quassel clients vanished from the face of the earth... 23:20:34"
+ // Complex: "Away since %%hh:mm%% on %%dd.MM%% - %%%% not here %%%%"
+ // > Result: "Away since 23:20 on 21.05 - %% not here %%"
+ //
+ // Match groups of double % signs - Some text %%inside here%%, and even %%%%:
+ // %%(.*)%%
+ // (...) marks a capturing group
+ // .* matches zero or more characters, not including newlines
+ // Note that '\' must be escaped as '\\'
+ // Helpful interactive website for debugging and explaining: https://regex101.com/
+ QRegExp regExpMatchTime("%%(.*)%%");
+
+ // Preserve the smallest groups possible to allow for multiple %%blocks%%
+ regExpMatchTime.setMinimal(true);
+
+ // NOTE: Move regExpMatchTime to a static regular expression if used anywhere that performance
+ // matters.
+
+ // Don't allow a runaway regular expression to loop for too long. This might not happen.. but
+ // when dealing with user input, better to be safe..?
+ int numIterations = 0;
+
+ // Find each group of %%text here%% starting from the beginning
+ int index = regExpMatchTime.indexIn(formattedStr);
+ int matchLength;
+ QString matchedFormat;
+ while (index >= 0 && numIterations < 512) {
+ // Get the total length of the matched expression
+ matchLength = regExpMatchTime.cap(0).length();
+ // Get the format string, e.g. "this text here" from "%%this text here%%"
+ matchedFormat = regExpMatchTime.cap(1);
+ // Check that there's actual characters inside. A quadruple % (%%%%) represents two %%
+ // signs.
+ if (matchedFormat.length() > 0) {
+ // Format the string according to the current date and time. Invalid time format
+ // strings are ignored.
+ formattedStr.replace(index, matchLength, QDateTime::currentDateTime().toString(matchedFormat));
+ // Subtract the length of the removed % signs
+ // E.g. "%%h:mm ap%%" turns into "h:mm ap", removing four % signs, thus -4. This is
+ // used below to determine how far to advance when looking for the next formatting code.
+ matchLength -= 4;
+ }
+ else if (matchLength == 4) {
+ // Remove two of the four percent signs, so '%%%%' escapes to '%%'
+ formattedStr.remove(index, 2);
+ // Subtract the length of the removed % signs, this time removing two % signs, thus -2.
+ matchLength -= 2;
+ }
+ else {
+ // If neither of these match, something went wrong. Don't modify it to be safe.
+ qDebug() << "Unexpected time format when parsing string, no matchedFormat, matchLength "
+ "should be 4, actually is"
+ << matchLength;
+ }
+
+ // Find the next group of %%text here%% starting from where the last group ended
+ index = regExpMatchTime.indexIn(formattedStr, index + matchLength);
+ numIterations++;
+ }
- QCoreApplication::removeTranslator(qtTranslator);
- QCoreApplication::removeTranslator(quasselTranslator);
+ return formattedStr;
+}
- if(locale.language() == QLocale::C)
- return;
+QString tryFormatUnixEpoch(const QString& possibleEpochDate, Qt::DateFormat dateFormat, bool useUTC)
+{
+ // Does the string resemble a Unix epoch? Parse as 64-bit time
+ qint64 secsSinceEpoch = possibleEpochDate.toLongLong();
+ if (secsSinceEpoch == 0) {
+ // Parsing either failed, or '0' was sent. No need to distinguish; either way, it's not
+ // useful as epoch.
+ // See https://doc.qt.io/qt-5/qstring.html#toLongLong
+ return possibleEpochDate;
+ }
- qtTranslator->load(QString(":i18n/qt_%1").arg(locale.name()));
- quasselTranslator->load(QString(":i18n/quassel_%1").arg(locale.name()));
+ // Time checks out, parse it
+ QDateTime date;
+#if QT_VERSION >= 0x050800
+ date.setSecsSinceEpoch(secsSinceEpoch);
+#else
+ // toSecsSinceEpoch() was added in Qt 5.8. Manually downconvert to seconds for now.
+ // See https://doc.qt.io/qt-5/qdatetime.html#toMSecsSinceEpoch
+ date.setMSecsSinceEpoch(secsSinceEpoch * 1000);
+#endif
- QCoreApplication::installTranslator(qtTranslator);
- QCoreApplication::installTranslator(quasselTranslator);
+ // Return the localized date/time
+ if (useUTC) {
+ // Return UTC time
+ if (dateFormat == Qt::DateFormat::ISODate) {
+ // Replace the "T" date/time separator with " " for readability. This isn't quite the
+ // ISO 8601 spec (it specifies omitting the "T" entirely), but RFC 3339 allows this.
+ // Go with RFC 3339 for human readability that's still machine-parseable, too.
+ //
+ // Before: 2018-06-21T21:35:52Z
+ // After: 2018-06-21 21:35:52Z
+ // ..........^ (10th character)
+ //
+ // See https://en.wikipedia.org/wiki/ISO_8601#cite_note-32
+ // And https://www.ietf.org/rfc/rfc3339.txt
+ return date.toUTC().toString(dateFormat).replace(10, 1, " ");
+ }
+ else {
+ return date.toUTC().toString(dateFormat);
+ }
+ }
+ else if (dateFormat == Qt::DateFormat::ISODate) {
+ // Add in ISO local timezone information via special handling below
+ // formatDateTimeToOffsetISO() handles converting "T" to " "
+ return formatDateTimeToOffsetISO(date);
+ }
+ else {
+ // Return local time
+ return date.toString(dateFormat);
+ }
}
-QString secondsToString(int timeInSeconds) {
- QList< QPair<int, QString> > timeUnit;
- timeUnit.append(qMakePair(365*24*60*60, QCoreApplication::translate("Quassel::secondsToString()", "year")));
- timeUnit.append(qMakePair(24*60*60, QCoreApplication::translate("Quassel::secondsToString()", "day")));
- timeUnit.append(qMakePair(60*60, QCoreApplication::translate("Quassel::secondsToString()", "h")));
- timeUnit.append(qMakePair(60, QCoreApplication::translate("Quassel::secondsToString()", "min")));
- timeUnit.append(qMakePair(1, QCoreApplication::translate("Quassel::secondsToString()", "sec")));
-
- QStringList returnString;
- for(int i=0; i < timeUnit.size(); i++) {
- int n = timeInSeconds / timeUnit[i].first;
- if(n > 0) {
- returnString += QString("%1 %2").arg(QString::number(n), timeUnit[i].second);
- }
- timeInSeconds = timeInSeconds % timeUnit[i].first;
+QString formatDateTimeToOffsetISO(const QDateTime& dateTime)
+{
+ if (!dateTime.isValid()) {
+ // Don't try to do anything with invalid date/time
+ return "formatDateTimeToISO() invalid date/time";
}
- return returnString.join(", ");
+
+ // Replace the "T" date/time separator with " " for readability. This isn't quite the ISO 8601
+ // spec (it specifies omitting the "T" entirely), but RFC 3339 allows this. Go with RFC 3339
+ // for human readability that's still machine-parseable, too.
+ //
+ // Before: 2018-08-22T18:43:10-05:00
+ // After: 2018-08-22 18:43:10-05:00
+ // ..........^ (10th character)
+ //
+ // See https://en.wikipedia.org/wiki/ISO_8601#cite_note-32
+ // And https://www.ietf.org/rfc/rfc3339.txt
+
+#if 0
+ // The expected way to get a UTC offset on ISO 8601 dates
+ // Remove the "T" date/time separator
+ return dateTime.toTimeSpec(Qt::OffsetFromUTC).toString(Qt::ISODate).replace(10, 1, " ");
+#else
+ // Work around Qt bug that converts to UTC instead of including timezone information
+ // See https://bugreports.qt.io/browse/QTBUG-26161
+ //
+ // NOTE: Despite the bug report marking as fixed in Qt 5.2.0 (QT_VERSION >= 0x050200), this
+ // still appears broken in Qt 5.5.1.
+ //
+ // Credit to "user362638" for the solution below, modified to fit Quassel's needs
+ // https://stackoverflow.com/questions/18750569/qdatetime-isodate-with-timezone
+
+ // Get the local and UTC time
+ QDateTime local = QDateTime(dateTime);
+ QDateTime utc = local.toUTC();
+ utc.setTimeSpec(Qt::LocalTime);
+
+ // Find the UTC offset
+ int utcOffset = utc.secsTo(local);
+
+ // Force the local time to follow this offset
+ local.setUtcOffset(utcOffset);
+ // Now the output should be correct
+ // Remove the "T" date/time separator
+ return local.toString(Qt::ISODate).replace(10, 1, " ");
+#endif
}
projects / quassel.git / blobdiff