restrict v6
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// Copyright 2026 tamakyi. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package question
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import (
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stdctx "context"
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"sync"
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"time"
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"github.com/sirupsen/logrus"
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"github.com/tamakyi/TamaBox/internal/conf"
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"github.com/tamakyi/TamaBox/internal/db"
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"github.com/tamakyi/TamaBox/internal/mail"
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"github.com/tamakyi/TamaBox/internal/shared"
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)
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// 举报阈值:达到任一条件就发一封汇总邮件给运维。
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//
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// 为什么是 8 / 20 而不是更低:一次粉圈摩擦里,围观者顺手举报同一内容很容易攒到三五条,
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// 阈值太低会天天误报,最后这个告警会被无视;而组织化挂人往往短时间内几十条。
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const (
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abuseAlertThreshold24h = 8
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abuseAlertThreshold7d = 20
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abuseAlertCooldown = 24 * time.Hour
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)
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// abuseAlertCooldowns 每个箱主上次发送阈值告警的时间。
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//
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// 用进程内 map 而不是加表:告警是「一次性提醒」,重启后丢失最坏结果是多发一封,
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// 而为此新增一张表和一套清理逻辑不划算。并发下用互斥锁保证同一箱主不会连发。
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var (
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abuseAlertMu sync.Mutex
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abuseAlertCooldowns = make(map[uint]time.Time)
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)
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func allowAbuseAlert(userID uint) bool {
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abuseAlertMu.Lock()
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defer abuseAlertMu.Unlock()
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if last, ok := abuseAlertCooldowns[userID]; ok && time.Since(last) < abuseAlertCooldown {
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return false
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}
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abuseAlertCooldowns[userID] = time.Now()
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return true
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}
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// notifyAbuseIfNeeded 在举报写入后判断是否达到告警阈值,异步发送汇总邮件。
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//
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// 只发「该看一眼」的信号,不做任何自动处置:举报数达标不等于内容违规,
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// 尤其这类互殴场景,自动处置会直接变成站队。
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func notifyAbuseIfNeeded(pageUser *db.User) {
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if conf.Security.SecurityAlertEmail == "" {
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return
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}
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shared.SafeGo(func() {
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ctx := stdctx.Background()
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count24, err := db.Reports.CountByUserSince(ctx, pageUser.ID, time.Now().Add(-24*time.Hour))
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if err != nil {
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logrus.WithError(err).Error("Failed to count reports within 24h")
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return
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}
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count7d, err := db.Reports.CountByUserSince(ctx, pageUser.ID, time.Now().AddDate(0, 0, -7))
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if err != nil {
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logrus.WithError(err).Error("Failed to count reports within 7d")
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return
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}
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if count24 < abuseAlertThreshold24h && count7d < abuseAlertThreshold7d {
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return
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}
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if !allowAbuseAlert(pageUser.ID) {
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return
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}
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if err := mail.SendAbuseAlertMail(pageUser.Domain, pageUser.Name, count24, count7d); err != nil {
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logrus.WithError(err).Error("Failed to send abuse alert mail")
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return
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}
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logrus.WithFields(logrus.Fields{
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"user_id": pageUser.ID,
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"domain": pageUser.Domain,
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"count24": count24,
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"count7d": count7d,
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}).Warn("Abuse alert mail sent")
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})
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}
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@@ -0,0 +1,68 @@
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// Copyright 2026 tamakyi. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package question
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import (
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"fmt"
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"github.com/sirupsen/logrus"
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"github.com/tamakyi/TamaBox/internal/context"
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"github.com/tamakyi/TamaBox/internal/db"
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"github.com/tamakyi/TamaBox/internal/form"
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"github.com/tamakyi/TamaBox/internal/i18n"
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"github.com/tamakyi/TamaBox/internal/shared"
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)
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// Report 接收访客对单条已公开回答的举报。
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//
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// 设计取舍(都是有意为之,改动前请先想清楚):
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// - **不要求登录**:这类内容的主要目击者是匿名访客,要求登录等于把举报率降到零;
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// - 理由只接受固定枚举,不做自由文本 —— 否则举报框本身成了新的辱骂输入口;
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// - 同 IP 同内容重复举报**幂等成功**,且提示与首次完全一致,
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// 否则「已举报过」会变成「这条内容是否存在」的探测接口;
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// - 举报只是信号:处置仍由箱主(后台删除/设私密)或运维(TamaBox restrict)完成,
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// 本 handler 不改变任何内容可见性。
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func Report(ctx context.Context, pageUser *db.User, question *db.Question, f form.ReportQuestion) {
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back := fmt.Sprintf("/_/%s/%d", pageUser.Domain, question.ID)
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if ctx.HasError() || !db.IsValidReportReason(f.Reason) {
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ctx.SetErrorFlash(i18n.T(ctx.Lang(), "report.errInvalidReason"))
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ctx.Redirect(back)
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return
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}
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// 兜底:只有公开且已回答的内容可被举报(Questioner 中间件已挡住私密/未回答)。
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if question.Answer == "" || question.IsPrivate {
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ctx.Redirect(back)
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return
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}
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ip := shared.ResolveClientIP(ctx.Request().Request)
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created, err := db.Reports.Create(ctx.Request().Context(), db.CreateReportOptions{
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QuestionID: question.ID,
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ReporterIP: ip,
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Reason: f.Reason,
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})
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if err != nil {
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logrus.WithContext(ctx.Request().Context()).WithError(err).Error("Failed to create content report")
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ctx.SetErrorFlash(i18n.T(ctx.Lang(), "report.errFailed"))
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ctx.Redirect(back)
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return
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}
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if created {
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logrus.WithContext(ctx.Request().Context()).WithFields(logrus.Fields{
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"question_id": question.ID,
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"user_id": pageUser.ID,
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"reason": f.Reason,
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}).Warn("Content reported")
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notifyAbuseIfNeeded(pageUser)
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}
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// 首次与重复使用同一句提示(见上方设计取舍)。
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ctx.SetSuccessFlash(i18n.T(ctx.Lang(), "report.flash.received"))
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ctx.Redirect(back)
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}
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