/***************************************************************************
- * 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 *
return formattedStr;
}
+
+
+bool scopeMatch(const QString &string, const QString &scopeRule, const bool &isRegEx,
+ const bool &isCaseSensitive)
+{
+ // When isRegEx is false:
+ // A match happens when the string does NOT match ANY inverted rules and matches AT LEAST one
+ // normal rule, unless no normal rules exist (implicit wildcard match). This gives inverted
+ // rules higher priority regardless of ordering.
+ //
+ // When isRegEx is true:
+ // A match happens when the normal regular expression matches. If prefixed with '!', the match
+ // happens UNLESS the following regular expression matches.
+
+ // TODO: After switching to Qt 5, use of this should be split into two parts, one part that
+ // would generate compiled QRegularExpressions for match/inverted match, regenerating it on any
+ // rule changes, and another part that would check each message against these compiled rules.
+
+ // Cache case sensitivity
+ Qt::CaseSensitivity ruleExactCase = (isCaseSensitive ? Qt::CaseSensitive : Qt::CaseInsensitive);
+
+ if (isRegEx) {
+ // Regular expression tests
+ // -------
+ // Check if this is an inverted rule (starts with '!')
+ if (scopeRule.startsWith("!")) {
+ // Take the reminder of the string
+ QRegExp ruleRx(scopeRule.mid(1), ruleExactCase);
+ // Matching an inverted rule: matched (true) implies rule failure (false)
+ return !ruleRx.exactMatch(string);
+ } else {
+ QRegExp ruleRx(scopeRule, ruleExactCase);
+ // Matching a normal rule: matched (true) implies rule success (true)
+ return ruleRx.exactMatch(string);
+ }
+ } else {
+ // Wildcard expression tests
+ // -------
+ // Keep track if any matches are found
+ bool matches = false;
+ // Keep track if normal rules and inverted rules are found, allowing for implicit wildcard
+ bool normalRuleFound = false, invertedRuleFound = false;
+
+ // Split each scope rule by separator, ignoring empty parts
+ foreach(QString rule, scopeRule.split(";", QString::SkipEmptyParts)) {
+ // Trim whitespace from the start/end of the rule
+ rule = rule.trimmed();
+ // Ignore empty rules
+ if (rule.isEmpty())
+ continue;
+
+ // Check if this is an inverted rule (starts with '!')
+ if (rule.startsWith("!")) {
+ // Inverted rule found
+ invertedRuleFound = true;
+
+ // Take the reminder of the string
+ QRegExp ruleRx(rule.mid(1), ruleExactCase);
+ ruleRx.setPatternSyntax(QRegExp::Wildcard);
+ if (ruleRx.exactMatch(string)) {
+ // Matches an inverted rule, full rule cannot match
+ return false;
+ }
+ } else {
+ // Normal rule found
+ normalRuleFound = true;
+
+ QRegExp ruleRx(rule, ruleExactCase);
+ ruleRx.setPatternSyntax(QRegExp::Wildcard);
+ if (ruleRx.exactMatch(string)) {
+ // Matches a normal rule, full rule might match
+ matches = true;
+ // Continue checking in case other inverted rules negate this
+ }
+ }
+ }
+ // No inverted rules matched, okay to match normally
+ // Return true if...
+ // ...we found a normal match
+ // ...implicit wildcard: we had inverted rules (that didn't match) and no normal rules
+ return matches || (invertedRuleFound && !normalRuleFound);
+ }
+}
+
+
+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
+}
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