src/common/irccap.h

   1 /***************************************************************************
   2  *   Copyright (C) 2005-2016 by the Quassel Project                        *
   3  *   devel@quassel-irc.org                                                 *
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  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
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  20
  21 #ifndef IRCCAP_H
  22 #define IRCCAP_H
  23
  24 #include <QString>
  25 #include <QStringList>
  26
  27 // Why a namespace instead of a class?  Seems to be a better fit for C++ than a 'static' class, as
  28 // compared to C# or Java.  However, feel free to change if needed.
  29 // See https://stackoverflow.com/questions/482745/namespaces-for-enum-types-best-practices
  30 /**
  31  * IRCv3 capability names and values
  32  */
  33 namespace IrcCap {
  34
  35     // NOTE: If you add or modify the constants below, update the knownCaps list.
  36
  37     /**
  38      * Account change notification.
  39      *
  40      * http://ircv3.net/specs/extensions/account-notify-3.1.html
  41      */
  42     const QString ACCOUNT_NOTIFY = "account-notify";
  43
  44     /**
  45      * Magic number for WHOX, used to ignore user-requested WHOX replies from servers
  46      *
  47      * If a user initiates a WHOX, there's no easy way to tell what fields were requested.  It's
  48      * simpler to not attempt to parse data from user-requested WHOX replies.
  49      */
  50     const uint ACCOUNT_NOTIFY_WHOX_NUM = 369;
  51
  52     /**
  53      * Away change notification.
  54      *
  55      * http://ircv3.net/specs/extensions/away-notify-3.1.html
  56      */
  57     const QString AWAY_NOTIFY = "away-notify";
  58
  59     /**
  60      * Capability added/removed notification.
  61      *
  62      * This is implicitly enabled via CAP LS 302, and is here for servers that only partially
  63      * support IRCv3.2.
  64      *
  65      * http://ircv3.net/specs/extensions/cap-notify-3.2.html
  66      */
  67     const QString CAP_NOTIFY = "cap-notify";
  68
  69     /**
  70      * Hostname/user changed notification.
  71      *
  72      * http://ircv3.net/specs/extensions/chghost-3.2.html
  73      */
  74     const QString CHGHOST = "chghost";
  75
  76     /**
  77      * Extended join information.
  78      *
  79      * http://ircv3.net/specs/extensions/extended-join-3.1.html
  80      */
  81     const QString EXTENDED_JOIN = "extended-join";
  82
  83     /**
  84      * Multiple mode prefixes in MODE and WHO replies.
  85      *
  86      * http://ircv3.net/specs/extensions/multi-prefix-3.1.html
  87      */
  88     const QString MULTI_PREFIX = "multi-prefix";
  89
  90     /**
  91      * SASL authentication.
  92      *
  93      * http://ircv3.net/specs/extensions/sasl-3.2.html
  94      */
  95     const QString SASL = "sasl";
  96
  97     /**
  98      * Userhost in names replies.
  99      *
 100      * http://ircv3.net/specs/extensions/userhost-in-names-3.2.html
 101      */
 102     const QString USERHOST_IN_NAMES = "userhost-in-names";
 103
 104     /**
 105      * List of capabilities currently implemented and requested during capability negotiation.
 106      */
 107     const QStringList knownCaps = QStringList {
 108             ACCOUNT_NOTIFY,
 109             AWAY_NOTIFY,
 110             CAP_NOTIFY,
 111             CHGHOST,
 112             EXTENDED_JOIN,
 113             MULTI_PREFIX,
 114             SASL,
 115             USERHOST_IN_NAMES
 116     };
 117     // NOTE: If you modify the knownCaps list, update the constants above as needed.
 118
 119     /**
 120      * SASL authentication mechanisms
 121      *
 122      * http://ircv3.net/specs/extensions/sasl-3.1.html
 123      */
 124     namespace SaslMech {
 125
 126         /**
 127          * Check if the given authentication mechanism is likely to be supported.
 128          *
 129          * @param[in] saslCapValue   QString of SASL capability value, e.g. capValue(IrcCap::SASL)
 130          * @param[in] saslMechanism  Desired SASL mechanism
 131          * @return True if mechanism supported or unknown, otherwise false
 132          */
 133         inline bool maybeSupported(const QString &saslCapValue, const QString &saslMechanism) { return
 134                     ((saslCapValue.length() == 0) || (saslCapValue.contains(saslMechanism, Qt::CaseInsensitive))); }
 135         // SASL mechanisms are only specified in capability values as part of SASL 3.2.  In
 136         // SASL 3.1, it's handled differently.  If we don't know via capability value, assume it's
 137         // supported to reduce the risk of breaking existing setups.
 138         // See: http://ircv3.net/specs/extensions/sasl-3.1.html
 139         // And: http://ircv3.net/specs/extensions/sasl-3.2.html
 140
 141         /**
 142          * PLAIN authentication, e.g. hashed password
 143          */
 144         const QString PLAIN = "PLAIN";
 145
 146         /**
 147          * EXTERNAL authentication, e.g. SSL certificate and keys
 148          */
 149         const QString EXTERNAL = "EXTERNAL";
 150     }
 151 }
 152
 153 #endif // IRCCAP_H