fCraft.PlayerInfo.RaiseBanChangingEvent C# (CSharp) Method

        internal static void RaiseBanChangingEvent( [NotNull] PlayerInfoBanChangingEventArgs e )
        {
            if ( e == null )
                throw new ArgumentNullException( "e" );
            var h = BanChanging;
            if ( h != null )
                h( null, e );
        }

        /// <summary> Unbans given IP address and all accounts on that IP. </summary>
        /// <param name="targetAddress"> IP address that is being unbanned. </param>
        /// <param name="player"> Player who is unbanning. </param>
        /// <param name="reason"> Reason for unban. May be null or empty, if permitted by server configuration. </param>
        /// <param name="announce"> Whether unban should be publicly announced on the server. </param>
        /// <param name="raiseEvents"> Whether RemovingIPBan, RemovedIPBan, BanChanging, and BanChanged events should be raised. </param>
        /// <exception cref="ArgumentNullException"> targetAddress or player is null. </exception>
        /// <exception cref="PlayerOpException"> Permission or configuration issues arise, or if everyone has already been unbanned. </exception>
        public static void UnbanAll([NotNull] this IPAddress targetAddress, [NotNull] Player player, [CanBeNull] string reason,
                                    bool announce, bool raiseEvents)
        {
            if (targetAddress == null)
            {
                throw new ArgumentNullException("targetAddress");
            }
            if (player == null)
            {
                throw new ArgumentNullException("player");
            }
            if (reason != null && reason.Trim().Length == 0)
            {
                reason = null;
            }

            if (!player.Can(Permission.Ban, Permission.BanIP, Permission.BanAll))
            {
                PlayerOpException.ThrowPermissionMissing(player, null, "unban-all",
                                                         Permission.Ban, Permission.BanIP, Permission.BanAll);
            }

            // Check if player is trying to unban self
            if (targetAddress.Equals(player.IP) && !player.IsSuper)
            {
                PlayerOpException.ThrowCannotTargetSelf(player, null, "unban-all");
            }

            // Check if a non-bannable address was given (0.0.0.0 or 255.255.255.255)
            if (targetAddress.Equals(IPAddress.None) || targetAddress.Equals(IPAddress.Any))
            {
                PlayerOpException.ThrowInvalidIP(player, null, targetAddress);
            }

            PlayerOpException.CheckBanReason(reason, player, null, true);
            bool somethingGotUnbanned = false;

            lock ( BanListLock ) {
                CheckIfLoaded();
                // Unban the IP
                if (Contains(targetAddress))
                {
                    if (Remove(targetAddress, raiseEvents))
                    {
                        Logger.Log(LogType.UserActivity,
                                   "{0} unbanned {1} (UnbanAll {1}). Reason: {2}",
                                   player.Name, targetAddress, reason ?? "");

                        // Announce unban on the server
                        if (announce)
                        {
                            var can = Server.Players.Can(Permission.ViewPlayerIPs);
                            can.Message("&W{0} was unbanned by {1}", targetAddress, player.ClassyName);
                            var cant = Server.Players.Cant(Permission.ViewPlayerIPs);
                            cant.Message("&WAn IP was unbanned by {0}", player.ClassyName);
                        }

                        somethingGotUnbanned = true;
                    }
                }

                // Unban individual players
                PlayerInfo[] allPlayersOnIP = PlayerDB.FindPlayers(targetAddress);
                foreach (PlayerInfo targetAlt in allPlayersOnIP)
                {
                    if (targetAlt.BanStatus != BanStatus.Banned)
                    {
                        continue;
                    }

                    // Raise PlayerInfo.BanChanging event
                    PlayerInfoBanChangingEventArgs e = new PlayerInfoBanChangingEventArgs(targetAlt, player, true,
                                                                                          reason, announce);
                    if (raiseEvents)
                    {
                        PlayerInfo.RaiseBanChangingEvent(e);
                        if (e.Cancel)
                        {
                            continue;
                        }
                        reason = e.Reason;
                    }

                    // Do the ban
                    if (targetAlt.ProcessUnban(player.Name, reason))
                    {
                        if (raiseEvents)
                        {
                            PlayerInfo.RaiseBanChangedEvent(e);
                        }

                        // Log and announce ban
                        Logger.Log(LogType.UserActivity,
                                   "{0} unbanned {1} (UnbanAll {2}). Reason: {3}",
                                   player.Name, targetAlt.Name, targetAddress, reason ?? "");
                        if (announce)
                        {
                            Server.Message("&WPlayer {0}&W was unbanned by {1}&W (UnbanAll)",
                                           targetAlt.ClassyName, player.ClassyName);
                        }
                        somethingGotUnbanned = true;
                    }
                }
            }

            // If no one ended up getting unbanned, quit here
            if (!somethingGotUnbanned)
            {
                PlayerOpException.ThrowNoOneToUnban(player, null, targetAddress);
            }

            // Announce UnbanAll reason towards the end of all unbans
            if (announce && ConfigKey.AnnounceKickAndBanReasons.Enabled() && reason != null)
            {
                Server.Message("&WUnbanAll reason: {0}", reason);
            }
        }