Discord机器人封禁/踢出日志重复发送问题的修复需求

问题描述 #

我编写了Discord机器人的封禁（ban）、解封（unban）和踢出（kick）日志脚本，目前脚本可正常运行，但存在异常：当用户被封禁时，机器人会同时发送封禁日志和踢出日志。需要实现：仅在用户被封禁时发送封禁日志，仅在用户被踢出时发送踢出日志。当前相关代码如下：

client.on(Events.GuildBanRemove, async (ban) => {
    const fetchedLogs = await ban.guild.fetchAuditLogs({
        limit: 1,
        type: AuditLogEvent.MemberBanRemove,
    });
    const unbanLog = fetchedLogs.entries.first();
    const { executor, target } = unbanLog;

    if (target.id === ban.user.id) {
        const channel2 = client.channels.cache.get("1026979529387950132");
        const embed2 = new Discord.EmbedBuilder()
            .setColor("#10fee4")
            .setThumbnail(`${client.user.displayAvatarURL({ size: 2048 })}`)
            .setTitle(`Log | Usuario Desbanido.`)
            .setDescription(`**Informações do usuario:**\n > Membro:${ban.user}\n > ID:\`${ban.user.id}\`\n\n**Informações do unban**:\n > Desbanido por: ${executor}\n> ID:\`${executor.id}\``)
            .setFooter({ text: `© ${client.user.username} 2023` })
            .setTimestamp(new Date());
        channel2.send({ embeds: [embed2] });
    }
});

client.on(Events.GuildMemberRemove, async (member) => {
    const fetchedLogs2 = await member.guild.fetchAuditLogs({
        limit: 1,
        type: AuditLogEvent.MemberKick,
    });
    const kickLog = fetchedLogs2.entries.first();
    const { executor, target } = kickLog;

    if (target.id === member.id) {
        const channel3 = client.channels.cache.get("1026979529387950132");
        const embed3 = new Discord.EmbedBuilder()
            .setColor("#10fee4")
            .setThumbnail(`${client.user.displayAvatarURL({ size: 2048 })}`)
            .setTitle(`Log | Usuario Expulso.`)
            .setDescription(`**Informações do usuario:**\n > Membro:${member.user}\n > ID:\`${member.user.id}\`\n\n**Informações da expulsão:**\n > Expulso por: ${executor}\n> ID:\`${executor.id}\``)
            .setFooter({ text: `© ${client.user.username} 2023` })
            .setTimestamp(new Date());
        channel3.send({ embeds: [embed3] });
    }
});

问题原因 #

用户被封禁时，Discord会先将用户从服务器移除（触发GuildMemberRemove事件），再添加封禁记录。当前的GuildMemberRemove事件直接查询踢出类型的审计日志，会误把封禁导致的成员离开判定为踢出，从而重复发送日志。

解决方案 #

在GuildMemberRemove事件中，先检查该用户是否已被服务器封禁。如果用户处于封禁状态，说明是封禁操作导致的离开，不发送踢出日志；只有当用户未被封禁时，才判定为踢出操作，发送对应日志。

修改后的完整代码 #

client.on(Events.GuildBanRemove, async (ban) => {
    const fetchedLogs = await ban.guild.fetchAuditLogs({
        limit: 1,
        type: AuditLogEvent.MemberBanRemove,
    });
    const unbanLog = fetchedLogs.entries.first();
    const { executor, target } = unbanLog;

    if (target.id === ban.user.id) {
        const channel2 = client.channels.cache.get("1026979529387950132");
        const embed2 = new Discord.EmbedBuilder()
            .setColor("#10fee4")
            .setThumbnail(`${client.user.displayAvatarURL({ size: 2048 })}`)
            .setTitle(`Log | Usuario Desbanido.`)
            .setDescription(`**Informações do usuario:**\n > Membro:${ban.user}\n > ID:\`${ban.user.id}\`\n\n**Informações do unban**:\n > Desbanido por: ${executor}\n> ID:\`${executor.id}\``)
            .setFooter({ text: `© ${client.user.username} 2023` })
            .setTimestamp(new Date());
        channel2.send({ embeds: [embed2] });
    }
});

client.on(Events.GuildMemberRemove, async (member) => {
    // 检查用户是否被封禁，区分封禁/踢出导致的离开
    const isBanned = await member.guild.bans.fetch(member.id).catch(() => false);
    if (isBanned) return; // 封禁导致的离开，直接返回不发踢出日志

    const fetchedLogs2 = await member.guild.fetchAuditLogs({
        limit: 1,
        type: AuditLogEvent.MemberKick,
    });
    const kickLog = fetchedLogs2.entries.first();
    if (!kickLog) return; // 无踢出审计日志，直接返回

    const { executor, target } = kickLog;
    if (target.id === member.id) {
        const channel3 = client.channels.cache.get("1026979529387950132");
        const embed3 = new Discord.EmbedBuilder()
            .setColor("#10fee4")
            .setThumbnail(`${client.user.displayAvatarURL({ size: 2048 })}`)
            .setTitle(`Log | Usuario Expulso.`)
            .setDescription(`**Informações do usuario:**\n > Membro:${member.user}\n > ID:\`${member.user.id}\`\n\n**Informações da expulsão:**\n > Expulso por: ${executor}\n> ID:\`${executor.id}\``)
            .setFooter({ text: `© ${client.user.username} 2023` })
            .setTimestamp(new Date());
        channel3.send({ embeds: [embed3] });
    }
});

关键修改说明 #

• 在GuildMemberRemove事件开头添加member.guild.bans.fetch(member.id)判断，若用户已被封禁则直接退出函数，跳过踢出日志发送逻辑
• 增加if (!kickLog) return判断，避免因无有效审计日志导致的报错

内容的提问来源于stack exchange，提问作者zxszin