コード例 #1
0
 /// <summary>
 /// Creates a new <see cref="DiscordPermissionException"/> instance.
 /// </summary>
 /// <param name="member">The member that didn't have the right permissions.</param>
 /// <param name="guild">The guild the member is in.</param>
 /// <param name="channel">The channel the permissions were checked against.</param>
 /// <param name="permission">The permissions that caused the exception.</param>
 public DiscordPermissionException(DiscordGuildMember member, DiscordGuild guild, DiscordGuildChannel channel, DiscordPermission permission)
     : base($"\"{member.User.Username}\" does not have permissions: {GetPermissions(permission)} in channel \"{channel.Name}\"")
 {
     Permission = permission;
     Member     = member;
     Guild      = guild;
     Channel    = channel;
 }
コード例 #2
0
        /// <summary>
        /// Returns whether the specified member has the given set of permissions
        /// in the context of the specified guild channel.
        /// </summary>
        /// <param name="permissions">The set of permissions to check if the member has.</param>
        /// <param name="member">The member to check the permissions of.</param>
        /// <param name="guild">The guild this member is in.</param>
        /// <param name="channel">
        /// The guild channel to check the permissions against (this will take overwrites into account).
        /// </param>
        /// <exception cref="ArgumentException">
        /// Thrown if <paramref name="member"/> or <paramref name="channel"/> is not in the
        /// specified <paramref name="guild"/>
        /// </exception>
        /// <exception cref="ArgumentNullException">
        /// Thrown if <paramref name="member"/>, <paramref name="guild"/>, or <paramref name="channel"/>
        /// is null.
        /// </exception>
        public static bool HasPermission(DiscordPermission permissions,
                                         DiscordGuildMember member, DiscordGuild guild, DiscordGuildChannel channel)
        {
            if (member == null)
            {
                throw new ArgumentNullException(nameof(member));
            }
            if (guild == null)
            {
                throw new ArgumentNullException(nameof(guild));
            }
            if (channel == null)
            {
                throw new ArgumentNullException(nameof(channel));
            }

            if (channel.GuildId != member.GuildId)
            {
                throw new ArgumentException("Guild channel must be in the same guild as this member.");
            }
            if (channel.GuildId != guild.Id)
            {
                throw new ArgumentException("Guild channel must be in the specified guild.");
            }

            // If owner, everything is true
            if (member.Id == guild.OwnerId)
            {
                return(true);
            }

            // Apply @everyone permissions
            DiscordRole everyoneRole = guild.Roles[guild.Id];

            DiscordPermission userPermissions = everyoneRole.Permissions;

            // Apply permissions for each role the member has
            foreach (Snowflake roleId in member.RoleIds)
            {
                if (guild.Roles.TryGetValue(roleId, out DiscordRole role))
                {
                    userPermissions = userPermissions | role.Permissions;
                }
            }

            // Administrator overrides channel-specific overwrites
            if (userPermissions.HasFlag(DiscordPermission.Administrator))
            {
                return(true);
            }

            // Apply channel @everyone overwrites
            DiscordOverwrite channelEveryoneOverwrite;

            if (channel.PermissionOverwrites.TryGetValue(guild.Id, out channelEveryoneOverwrite))
            {
                userPermissions = (userPermissions & (~channelEveryoneOverwrite.Deny)) | channelEveryoneOverwrite.Allow;
            }

            // Apply channel-specific role overwrites
            DiscordPermission roleOverwriteAllow = 0;
            DiscordPermission roleOverwriteDeny  = 0;

            foreach (Snowflake roleId in member.RoleIds)
            {
                DiscordOverwrite overwrite;
                if (channel.PermissionOverwrites.TryGetValue(roleId, out overwrite))
                {
                    roleOverwriteAllow = roleOverwriteAllow | overwrite.Allow;
                    roleOverwriteDeny  = roleOverwriteDeny | overwrite.Deny;
                }
            }

            userPermissions = (userPermissions & (~roleOverwriteDeny)) | roleOverwriteAllow;

            // Apply channel-specific member overwrite for this channel
            DiscordOverwrite memberOverwrite;

            if (channel.PermissionOverwrites.TryGetValue(member.Id, out memberOverwrite))
            {
                userPermissions = (userPermissions & (~memberOverwrite.Deny)) | memberOverwrite.Allow;
            }

            // Check for correct permissions
            return(userPermissions.HasFlag(DiscordPermission.Administrator) | userPermissions.HasFlag(permissions));
        }
コード例 #3
0
 /// <summary>
 /// Checks whether the specified member has the given set of permissions
 /// in the context of the specified guild channel.
 /// If they don't, a <see cref="DiscordPermissionException"/> is thrown with details.
 /// </summary>
 /// <param name="permissions">The set of permissions to check if the member has.</param>
 /// <param name="member">The member to check the permissions of.</param>
 /// <param name="guild">The guild this member is in.</param>
 /// <param name="channel">
 /// The guild channel to check the permissions against (this will take overwrites into account).
 /// </param>
 /// <exception cref="ArgumentException">
 /// Thrown if <paramref name="member"/> or <paramref name="channel"/> is not in the
 /// specified <paramref name="guild"/>
 /// </exception>
 /// <exception cref="ArgumentNullException">
 /// Thrown if <paramref name="member"/>, <paramref name="guild"/>, or <paramref name="channel"/>
 /// is null.
 /// </exception>
 public static void AssertPermission(DiscordPermission permissions,
                                     DiscordGuildMember member, DiscordGuild guild, DiscordGuildChannel channel)
 {
     if (!HasPermission(permissions, member, guild, channel))
     {
         throw new DiscordPermissionException(member, guild, channel, permissions);
     }
 }
コード例 #4
0
 /// <summary>
 /// Checks whether this member has the given set of permissions
 /// in the context of the specified guild channel.
 /// If they don't, a <see cref="DiscordPermissionException"/> is thrown with details.
 /// </summary>
 /// <param name="permissions">The set of permissions to check if the member has.</param>
 /// <param name="guild">The guild this member is in.</param>
 /// <param name="channel">
 /// The guild channel to check the permissions against (this will take overwrites into account).
 /// </param>
 /// <exception cref="ArgumentException">
 /// Thrown if <paramref name="member"/> or <paramref name="channel"/> is not in the
 /// specified <paramref name="guild"/>
 /// </exception>
 /// <exception cref="ArgumentNullException">
 /// Thrown if <paramref name="member"/>, <paramref name="guild"/>, or <paramref name="channel"/>
 /// is null.
 /// </exception>
 public static void AssertPermission(this DiscordGuildMember member, DiscordPermission permissions, DiscordGuild guild, DiscordGuildChannel channel)
 => DiscordPermissionHelper.AssertPermission(permissions, member, guild, channel);
コード例 #5
0
 /// <summary>
 /// Returns whether this member has the given set of permissions
 /// in the context of the specified guild channel.
 /// </summary>
 /// <param name="permissions">The set of permissions to check if the member has.</param>
 /// <param name="guild">The guild this member is in.</param>
 /// <param name="channel">
 /// The guild channel to check the permissions against (this will take overwrites into account).
 /// </param>
 /// <exception cref="ArgumentException">
 /// Thrown if <paramref name="member"/> or <paramref name="channel"/> is not in the
 /// specified <paramref name="guild"/>
 /// </exception>
 /// <exception cref="ArgumentNullException">
 /// Thrown if <paramref name="member"/>, <paramref name="guild"/>, or <paramref name="channel"/>
 /// is null.
 /// </exception>
 public static bool HasPermission(this DiscordGuildMember member, DiscordPermission permissions, DiscordGuild guild, DiscordGuildChannel channel)
 => DiscordPermissionHelper.HasPermission(permissions, member, guild, channel);