X-Git-Url: https://git.quassel-irc.org/?a=blobdiff_plain;f=src%2Fcommon%2Futil.cpp;h=914c9a49e9a7282e3b54a15cae13f051383dc63b;hb=7a878bda2ba617ff2eac98b7089f0f0053a9ea30;hp=695ca4ad87b273087aaf19436453b7cf8239a129;hpb=b06a827aea68b050bf23c37e0162189a94595ee9;p=quassel.git

diff --git a/src/common/util.cpp b/src/common/util.cpp
index 695ca4ad..914c9a49 100644
--- a/src/common/util.cpp
+++ b/src/common/util.cpp
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (C) 2005-2016 by the Quassel Project                        *
+ *   Copyright (C) 2005-2018 by the Quassel Project                        *
  *   devel@quassel-irc.org                                                 *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
@@ -64,14 +64,16 @@ QString hostFromMask(const QString &mask)
 
 bool isChannelName(const QString &str)
 {
-    static constexpr std::array<QChar, 4> prefixes{{'#', '&', '!', '+'}};
-    return std::any_of(prefixes.cbegin(), prefixes.cend(), [&str](QChar c) { return c == str[0]; });
+    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 message)
 {
-    static QRegExp regEx{"\x03(\\d\\d?(,\\d\\d?)?)?|[\x02\x0f\x12\x16\x1d\x1f]"};
+    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);
 }
 
@@ -278,3 +280,74 @@ QString formatCurrentDateTimeInString(const QString &formatStr)
 
     return formattedStr;
 }
+
+
+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;
+    }
+
+    // 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
+
+    // Return the localized date/time
+    if (useUTC) {
+        // Return UTC time
+        return date.toUTC().toString(dateFormat);
+    } else if (dateFormat == Qt::DateFormat::ISODate) {
+        // Add in ISO local timezone information via special handling below
+        return formatDateTimeToOffsetISO(date);
+    } else {
+        // Return local time
+        return date.toString(dateFormat);
+    }
+}
+
+
+QString formatDateTimeToOffsetISO(const QDateTime &dateTime)
+{
+    if (!dateTime.isValid()) {
+        // Don't try to do anything with invalid date/time
+        return "formatDateTimeToISO() invalid date/time";
+    }
+
+#if 0
+    // The expected way to get a UTC offset on ISO8601 dates
+    return dateTime.toTimeSpec(Qt::OffsetFromUTC).toString(Qt::ISODate);
+#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
+    return local.toString(Qt::ISODate);
+#endif
+}