/***************************************************************************
- * Copyright (C) 2005-2013 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 *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
-#ifndef QUASSEL_H_
-#define QUASSEL_H_
+#pragma once
+
+#include <functional>
+#include <memory>
+#include <vector>
#include <QCoreApplication>
+#include <QFile>
+#include <QObject>
#include <QLocale>
#include <QString>
+#include <QStringList>
#include "abstractcliparser.h"
class QFile;
-class Quassel
+class Quassel : public QObject
{
- Q_DECLARE_TR_FUNCTIONS(Quassel)
+ // TODO Qt5: Use Q_GADGET
+ Q_OBJECT
public:
enum RunMode {
QString baseVersion;
QString generatedVersion;
QString commitHash;
- uint commitDate;
- QString buildDate;
- bool isSourceDirty;
- uint protocolVersion;
- uint clientNeedsProtocol;
- uint coreNeedsProtocol;
+ QString commitDate;
+
+ uint protocolVersion; // deprecated
QString applicationName;
QString coreApplicationName;
QString organizationDomain;
};
- //! A list of features that are optional in core and/or client, but need runtime checking
- /** Some features require an uptodate counterpart, but don't justify a protocol break.
- * This is what we use this enum for. Add such features to it and check at runtime on the other
- * side for their existence.
+ /**
+ * This enum defines the optional features supported by cores/clients prior to version 0.13.
+ *
+ * Since the number of features declared this way is limited to 16 (due to the enum not having a defined
+ * width in cores/clients prior to 0.13), and for more robustness when negotiating features on connect,
+ * the bitfield-based representation was replaced by a string-based representation in 0.13, support for
+ * which is indicated by having the ExtendedFeatures flag set. Extended features are defined in the Feature
+ * enum.
+ *
+ * @warning Do not alter this enum; new features must be added (only) to the @a Feature enum.
*
- * This list should be cleaned up after every protocol break, as we can assume them to be present then.
+ * @sa Feature
*/
- enum Feature {
+ enum class LegacyFeature : quint32 {
SynchronizedMarkerLine = 0x0001,
- SaslAuthentication = 0x0002,
- SaslExternal = 0x0004,
-
- NumFeatures = 0x0004
+ SaslAuthentication = 0x0002,
+ SaslExternal = 0x0004,
+ HideInactiveNetworks = 0x0008,
+ PasswordChange = 0x0010,
+ CapNegotiation = 0x0020,
+ VerifyServerSSL = 0x0040,
+ CustomRateLimits = 0x0080,
+ // DccFileTransfer = 0x0100, // never in use
+ AwayFormatTimestamp = 0x0200,
+ Authenticators = 0x0400,
+ BufferActivitySync = 0x0800,
+ CoreSideHighlights = 0x1000,
+ SenderPrefixes = 0x2000,
+ RemoteDisconnect = 0x4000,
+ ExtendedFeatures = 0x8000,
};
- Q_DECLARE_FLAGS(Features, Feature);
+ Q_FLAGS(LegacyFeature)
+ Q_DECLARE_FLAGS(LegacyFeatures, LegacyFeature)
- //! The features the current version of Quassel supports (\sa Feature)
- /** \return An ORed list of all enum values in Feature
+ /**
+ * A list of features that are optional in core and/or client, but need runtime checking.
+ *
+ * Some features require an uptodate counterpart, but don't justify a protocol break.
+ * This is what we use this enum for. Add such features to it and check at runtime on the other
+ * side for their existence.
+ *
+ * For feature negotiation, these enum values are serialized as strings, so order does not matter. However,
+ * do not rename existing enum values to avoid breaking compatibility.
+ *
+ * This list should be cleaned up after every protocol break, as we can assume them to be present then.
*/
- static Features features();
+ #if QT_VERSION >= 0x050000
+ enum class Feature : uint32_t {
+ #else
+ enum Feature {
+ #endif
+ SynchronizedMarkerLine,
+ SaslAuthentication,
+ SaslExternal,
+ HideInactiveNetworks,
+ PasswordChange, ///< Remote password change
+ CapNegotiation, ///< IRCv3 capability negotiation, account tracking
+ VerifyServerSSL, ///< IRC server SSL validation
+ CustomRateLimits, ///< IRC server custom message rate limits
+ AwayFormatTimestamp, ///< Timestamp formatting in away (e.g. %%hh:mm%%)
+ Authenticators, ///< Whether or not the core supports auth backends
+ BufferActivitySync, ///< Sync buffer activity status
+ CoreSideHighlights, ///< Core-Side highlight configuration and matching
+ SenderPrefixes, ///< Show prefixes for senders in backlog
+ RemoteDisconnect, ///< Allow this peer to be remotely disconnected
+ ExtendedFeatures, ///< Extended features
+#if QT_VERSION >= 0x050500
+ EcdsaCertfpKeys, ///< ECDSA keys for CertFP in identities
+#endif
+ };
+ Q_ENUMS(Feature)
- virtual ~Quassel();
+ class Features;
- static void setupBuildInfo(const QString &generated);
- static inline const BuildInfo &buildInfo();
- static inline RunMode runMode();
+ static Quassel *instance();
+
+ static void setupBuildInfo();
+ static const BuildInfo &buildInfo();
+ static RunMode runMode();
static QString configDirPath();
static void loadTranslation(const QLocale &locale);
- static inline void setCliParser(AbstractCliParser *cliParser);
- static inline AbstractCliParser *cliParser();
- static inline QString optionValue(const QString &option);
- static inline bool isOptionSet(const QString &option);
-
- static const QString &coreDumpFileName();
-
- static bool DEBUG;
+ static void setCliParser(std::shared_ptr<AbstractCliParser> cliParser);
+ static QString optionValue(const QString &option);
+ static bool isOptionSet(const QString &option);
enum LogLevel {
DebugLevel,
ErrorLevel
};
- static inline LogLevel logLevel();
- static inline QFile *logFile();
- static inline bool logToSyslog();
+ static LogLevel logLevel();
+ static void setLogLevel(LogLevel logLevel);
+ static QFile *logFile();
+ static bool logToSyslog();
static void logFatalMessage(const char *msg);
+ using ReloadHandler = std::function<bool()>;
+
+ static void registerReloadHandler(ReloadHandler handler);
+
+ using QuitHandler = std::function<void()>;
+
+ static void registerQuitHandler(QuitHandler quitHandler);
+
protected:
- Quassel();
- virtual bool init();
- virtual void quit();
+ static bool init();
+ static void destroy();
+
+ static void setRunMode(Quassel::RunMode runMode);
- inline void setRunMode(RunMode mode);
- inline void setDataDirPaths(const QStringList &paths);
- QStringList findDataDirPaths() const;
- inline void disableCrashhandler();
+ static void setDataDirPaths(const QStringList &paths);
+ static QStringList findDataDirPaths();
+ static void disableCrashHandler();
+
+ friend class CoreApplication;
+ friend class QtUiApplication;
+ friend class MonolithicApplication;
private:
+ Quassel();
+ void setupEnvironment();
void registerMetaTypes();
+ const QString &coreDumpFileName();
+
+ /**
+ * Requests a reload of relevant runtime configuration.
+ *
+ * Calls any registered reload handlers, and returns the cumulative result. If no handlers are registered,
+ * does nothing and returns true.
+ *
+ * @returns True if configuration reload successful, otherwise false
+ */
+ bool reloadConfig();
+
+ /**
+ * Requests to quit the application.
+ *
+ * Calls any registered quit handlers. If no handlers are registered, calls QCoreApplication::quit().
+ */
+ void quit();
+
+ void logBacktrace(const QString &filename);
+
static void handleSignal(int signal);
- static void logBacktrace(const QString &filename);
-
- static Quassel *_instance;
- static BuildInfo _buildInfo;
- static AbstractCliParser *_cliParser;
- static RunMode _runMode;
- static bool _initialized;
- static bool _handleCrashes;
-
- static QString _coreDumpFileName;
- static QString _configDirPath;
- static QStringList _dataDirPaths;
- static QString _translationDirPath;
-
- static LogLevel _logLevel;
- static QFile *_logFile;
- static bool _logToSyslog;
+
+private:
+ BuildInfo _buildInfo;
+ RunMode _runMode;
+ bool _initialized{false};
+ bool _handleCrashes{true};
+
+ QString _coreDumpFileName;
+ QString _configDirPath;
+ QStringList _dataDirPaths;
+ QString _translationDirPath;
+
+ LogLevel _logLevel{InfoLevel};
+ bool _logToSyslog{false};
+ std::unique_ptr<QFile> _logFile;
+
+ std::shared_ptr<AbstractCliParser> _cliParser;
+
+ std::vector<ReloadHandler> _reloadHandlers;
+ std::vector<QuitHandler> _quitHandlers;
};
+// --------------------------------------------------------------------------------------------------------------------
-Q_DECLARE_OPERATORS_FOR_FLAGS(Quassel::Features);
+/**
+ * Class representing a set of supported core/client features.
+ *
+ * @sa Quassel::Feature
+ */
+class Quassel::Features
+{
+public:
+ /**
+ * Default constructor.
+ *
+ * Creates a Feature instance with all known features (i.e., all values declared in the Quassel::Feature enum) set.
+ * This is useful for easily creating a Feature instance that represent the current version's capabilities.
+ */
+ Features();
-const Quassel::BuildInfo &Quassel::buildInfo() { return _buildInfo; }
-Quassel::RunMode Quassel::runMode() { return _runMode; }
-void Quassel::setRunMode(Quassel::RunMode mode) { _runMode = mode; }
-void Quassel::setDataDirPaths(const QStringList &paths) { _dataDirPaths = paths; }
-void Quassel::disableCrashhandler() { _handleCrashes = false; }
+ /**
+ * Constructs a Feature instance holding the given list of features.
+ *
+ * Both the @a features and the @a legacyFeatures arguments are considered (additively).
+ * This is useful when receiving a list of features from another peer.
+ *
+ * @param features A list of strings matching values in the Quassel::Feature enum. Strings that don't match are
+ * can be accessed after construction via unknownFeatures(), but are otherwise ignored.
+ * @param legacyFeatures Holds a bit-wise combination of LegacyFeature flag values, which are each added to the list of
+ * features represented by this Features instance.
+ */
+ Features(const QStringList &features, LegacyFeatures legacyFeatures);
-void Quassel::setCliParser(AbstractCliParser *parser) { _cliParser = parser; }
-AbstractCliParser *Quassel::cliParser() { return _cliParser; }
-QString Quassel::optionValue(const QString &key) { return cliParser()->value(key); }
-bool Quassel::isOptionSet(const QString &key) { return cliParser()->isSet(key); }
+ /**
+ * Check if a given feature is marked as enabled in this Features instance.
+ *
+ * @param feature The feature to be queried
+ * @returns Whether the given feature is marked as enabled
+ */
+ bool isEnabled(Feature feature) const;
-Quassel::LogLevel Quassel::logLevel() { return _logLevel; }
-QFile *Quassel::logFile() { return _logFile; }
-bool Quassel::logToSyslog() { return _logToSyslog; }
+ /**
+ * Provides a list of all features marked as either enabled or disabled (as indicated by the @a enabled argument) as strings.
+ *
+ * @param enabled Whether to return the enabled or the disabled features
+ * @return A string list containing all enabled or disabled features
+ */
+ QStringList toStringList(bool enabled = true) const;
-#endif
+ /**
+ * Provides a list of all enabled legacy features (i.e. features defined prior to v0.13) as bit-wise combination in a
+ * LegacyFeatures type.
+ *
+ * @note Extended features cannot be represented this way, and are thus ignored even if set.
+ * @return A LegacyFeatures type holding the bit-wise combination of all legacy features enabled in this Features instance
+ */
+ LegacyFeatures toLegacyFeatures() const;
+
+ /**
+ * Provides the list of strings that could not be mapped to Quassel::Feature enum values on construction.
+ *
+ * Useful for debugging/logging purposes.
+ *
+ * @returns A list of strings that could not be mapped to the Feature enum on construction of this Features instance, if any
+ */
+ QStringList unknownFeatures() const;
+
+private:
+ std::vector<bool> _features;
+ QStringList _unknownFeatures;
+};
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