diff --git a/README.md b/README.md
index 50a3a76..3cfa792 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ Web 前端采用 QQ 邮箱风格的布局:顶部导航 + 左侧文件夹栏 +
- **管理后台**:域名管理、用户管理、DKIM 密钥自动生成、DNS 配置提示、全量邮件查看、外发队列管理、IP 封禁管理、仪表盘统计
- **协议调用日志**:SMTP / IMAP / POP3 每次连接自动记录来源 IP、用户名、成功/失败、失败原因与操作摘要,可按协议/状态/IP/用户名/时间筛选,用于分析密码爆破、中继滥用等攻击行为(默认保留 30 天,自动清理)
- **外部认证**:OAuth2(Google / GitHub)、LDAP(可选,默认关闭)
-- **安全机制**:BCrypt 密码哈希、登录失败自动封禁 IP、外发频率限制(防滥用)、非认证禁止中继(防开放中继)、管理员可解封
+- **安全机制**:BCrypt 密码哈希、登录失败自动封禁 IP(**阶段性封禁**:前 3 次达到失败阈值只计数,第 4 次起封禁并按档位递增 30分钟 → 3小时 → 3个月 → 半年,成功登录清零)、外发频率限制(防滥用)、非认证禁止中继(防开放中继)、管理员可解封
- **多数据库**:默认 SQLite,可切换 MySQL
- **跨平台**:Linux 生产部署 + Windows 本地调试
@@ -127,7 +127,9 @@ ldap_use_tls = false
[ban]
max_fail_attempts = 5 # 登录失败次数阈值
-ban_duration_min = 30 # 封禁时长(分钟)
+ban_duration_min = 30 # 第 1 次封禁时长(分钟);之后按档位递增:
+ # 第 2 次 3 小时 → 第 3 次 3 个月 → 第 4 次起半年(上限)
+ # 前 3 次达到阈值只计数不封禁,成功登录后清零
[caddy]
data_dir = "" # Caddy 数据目录(含 certificates/ 的那个),
diff --git a/internal/db/models.go b/internal/db/models.go
index 56f6cac..ffc78a4 100644
--- a/internal/db/models.go
+++ b/internal/db/models.go
@@ -114,6 +114,10 @@ type BanEntry struct {
IPAddress string `gorm:"size:45;index;not null" json:"ip_address"`
Reason string `gorm:"size:255" json:"reason"`
FailCount int `gorm:"default:0" json:"fail_count"`
+ // BanCount 是该 IP 累计达到失败阈值的次数(含未封禁的前几次)。
+ // 阶段封禁依据:前 3 次只计数不封禁,第 4 次起按档位递增时长。
+ // 成功登录或管理员解封会删除记录,次数随之清零。
+ BanCount int `gorm:"default:0" json:"ban_count"`
ExpiresAt time.Time `gorm:"index" json:"expires_at"`
CreatedAt time.Time `json:"created_at"`
UpdatedAt time.Time `json:"updated_at"`
diff --git a/internal/imap_server/backend.go b/internal/imap_server/backend.go
index 94f1243..af18ba1 100644
--- a/internal/imap_server/backend.go
+++ b/internal/imap_server/backend.go
@@ -44,8 +44,8 @@ func (b *imapBackend) Login(connInfo *imap.ConnInfo, username, password string)
user, err := b.stores.Users.Authenticate(username, password)
if err != nil {
- // 认证失败计数,达到阈值封禁(与 Web 登录共用 ban_entries)
- b.stores.RecordAuthFailure(clientIP, b.banCfg.MaxFailAttempts, b.banCfg.BanDurationMin)
+ // 认证失败计数,达到阈值按档位封禁(与 Web 登录共用 ban_entries)
+ b.stores.RecordAuthFailure(clientIP, b.banCfg.MaxFailAttempts, b.banCfg.BanDurationMin, "邮件协议认证失败次数过多")
b.recordLogin(clientIP, username, false, "用户名或密码错误", "LOGIN 失败", 0, now)
return nil, fmt.Errorf("invalid credentials: %w", err)
}
diff --git a/internal/pop3_server/server.go b/internal/pop3_server/server.go
index 16d5123..e5a66ae 100644
--- a/internal/pop3_server/server.go
+++ b/internal/pop3_server/server.go
@@ -377,8 +377,8 @@ func (s *POP3Server) handlePASS(conn net.Conn, password string, user *db.User) (
authUser, err := s.stores.Users.Authenticate(user.Username, password)
if err != nil {
- // 认证失败计数,达到阈值封禁(与 Web 登录共用 ban_entries)
- s.stores.RecordAuthFailure(clientIP, s.banCfg.MaxFailAttempts, s.banCfg.BanDurationMin)
+ // 认证失败计数,达到阈值按档位封禁(与 Web 登录共用 ban_entries)
+ s.stores.RecordAuthFailure(clientIP, s.banCfg.MaxFailAttempts, s.banCfg.BanDurationMin, "邮件协议认证失败次数过多")
sendResponse(conn, "-ERR authentication failed")
return nil, nil, nil
}
diff --git a/internal/smtp_server/server.go b/internal/smtp_server/server.go
index 8167bad..2a20926 100644
--- a/internal/smtp_server/server.go
+++ b/internal/smtp_server/server.go
@@ -199,11 +199,12 @@ func (s *smtpSession) Auth(mech string) (sasl.Server, error) {
user, err := s.backend.server.stores.Users.Authenticate(username, password)
if err != nil {
- // 认证失败计数,达到阈值封禁(与 Web 登录共用 ban_entries)
+ // 认证失败计数,达到阈值按档位封禁(与 Web 登录共用 ban_entries)
s.backend.server.stores.RecordAuthFailure(
s.clientIP,
s.backend.server.banCfg.MaxFailAttempts,
s.backend.server.banCfg.BanDurationMin,
+ "邮件协议认证失败次数过多",
)
s.recordFail("用户名或密码错误")
return smtp.ErrAuthFailed
diff --git a/internal/store/auth_guard.go b/internal/store/auth_guard.go
index 57c0aed..ecc3bae 100644
--- a/internal/store/auth_guard.go
+++ b/internal/store/auth_guard.go
@@ -4,8 +4,6 @@ import (
"fmt"
"net"
"time"
-
- "mail_go/internal/db"
)
// ClientIPFromAddr 从 net.Addr 提取客户端 IP 字符串(去掉端口)。
@@ -21,23 +19,50 @@ func ClientIPFromAddr(addr net.Addr) string {
return host
}
-// RecordAuthFailure 记录一次协议层(SMTP/IMAP/POP3)认证失败:
-// 失败计数累加,达到 maxFail 阈值时封禁该 IP(封禁时长 minutes 分钟)。
-// 返回 (是否触发封禁, 当前失败计数)。Web 登录的封禁逻辑在
-// handlers.AuthHandler 中,与这里独立。
-func (s *Stores) RecordAuthFailure(ip string, maxFail int, minutes int) (banned bool, failCount int) {
+// RecordAuthFailure 记录一次登录/认证失败(Web 表单、LDAP 与 SMTP/IMAP/POP3
+// 协议层统一入口):
+// - 失败计数累加(每 IP 一条记录,upsert);
+// - 达到 maxFail 阈值时触发次数 BanCount+1:
+// 前 freeTriggers(3)次只计数不封禁;
+// 从第 4 次起封禁,时长按档位递增(stageDuration),上限半年;
+// - reason 为失败场景描述(如“登录失败次数过多”),封禁原因会带上档位。
+//
+// 返回 (是否触发封禁, 当前失败计数)。成功登录后调用 ResetFail 清零。
+func (s *Stores) RecordAuthFailure(ip string, maxFail int, firstBanMin int, reason string) (banned bool, failCount int) {
if ip == "" || maxFail <= 0 {
return false, 0
}
failCount, _ = s.Bans.IncrementFail(ip)
- if failCount >= maxFail {
- _ = s.Bans.Create(&db.BanEntry{
- IPAddress: ip,
- Reason: fmt.Sprintf("邮件协议认证失败次数过多 (%d次)", failCount),
- FailCount: failCount,
- ExpiresAt: time.Now().Add(time.Duration(minutes) * time.Minute),
- })
+ if failCount < maxFail {
+ return false, failCount
+ }
+
+ entry, err := s.Bans.GetByIP(ip)
+ if err != nil || entry == nil {
+ return false, failCount
+ }
+ // 已处于封禁中(例如并发请求竞态)不重复触发、不重设档位
+ if entry.ExpiresAt.After(time.Now()) {
return true, failCount
}
- return false, failCount
+
+ banCount := entry.BanCount + 1
+ entry.BanCount = banCount
+ entry.FailCount = failCount
+
+ // 前 3 次只计数,不封禁(保留零到期时间与空原因)
+ if banCount <= freeTriggers {
+ if err := s.Bans.Update(entry); err != nil {
+ return false, failCount
+ }
+ return false, failCount
+ }
+
+ banNum := banCount - freeTriggers
+ entry.Reason = fmt.Sprintf("第%d次封禁:%s(第%d次触发,失败%d次)", banNum, reason, banCount, failCount)
+ entry.ExpiresAt = time.Now().Add(stageDuration(banNum, firstBanMin))
+ if err := s.Bans.Update(entry); err != nil {
+ return false, failCount
+ }
+ return true, failCount
}
diff --git a/internal/store/auth_guard_test.go b/internal/store/auth_guard_test.go
index 2deaca7..15fe47f 100644
--- a/internal/store/auth_guard_test.go
+++ b/internal/store/auth_guard_test.go
@@ -3,6 +3,7 @@ package store
import (
"net"
"path/filepath"
+ "strings"
"testing"
"time"
@@ -24,46 +25,210 @@ func newTestStores(t *testing.T) *Stores {
return NewStores(gdb)
}
-// TestRecordAuthFailureBansAfterThreshold 验证连续认证失败达到阈值后封禁。
-func TestRecordAuthFailureBansAfterThreshold(t *testing.T) {
+// TestRecordAuthFailureFreeTriggers 验证前 3 次达到阈值只计数不封禁,
+// 第 4 次起封禁(第 1 次封禁 = 配置时长)。
+func TestRecordAuthFailureFreeTriggers(t *testing.T) {
s := newTestStores(t)
const ip = "203.0.113.10"
- const maxFail = 3
+ const maxFail = 2
- // 前两次失败不封禁
- for i := 1; i < maxFail; i++ {
- banned, count := s.RecordAuthFailure(ip, maxFail, 30)
- if banned {
- t.Fatalf("attempt %d should not be banned yet", i)
+ failOnce := func() bool {
+ banned, _ := s.RecordAuthFailure(ip, maxFail, 30, "登录失败次数过多")
+ return banned
+ }
+
+ // 第 1 次触发需要 maxFail 次失败
+ for f := 0; f < maxFail; f++ {
+ if failOnce() {
+ t.Fatalf("trigger 1 (fail %d) should not ban yet", f+1)
}
- if count != i {
- t.Fatalf("attempt %d: fail count = %d, want %d", i, count, i)
+ }
+ // 达到阈值后失败计数持续累计,之后每次失败都会再次触发
+ for i := 2; i <= 3; i++ {
+ if failOnce() {
+ t.Fatalf("trigger %d should not ban yet", i)
}
}
- // 第三次失败触发封禁
- banned, count := s.RecordAuthFailure(ip, maxFail, 30)
- if !banned {
- t.Fatal("attempt reaching threshold should ban the IP")
+ entry, err := s.Bans.GetByIP(ip)
+ if err != nil {
+ t.Fatalf("get entry: %v", err)
}
- if count != maxFail {
- t.Fatalf("fail count = %d, want %d", count, maxFail)
+ if entry.BanCount != 3 {
+ t.Fatalf("ban_count = %d, want 3", entry.BanCount)
+ }
+ if !entry.ExpiresAt.IsZero() {
+ t.Fatal("observation record must not have expiry")
+ }
+
+ // 第 4 次触发封禁,时长 = firstBanMin(30 分钟)
+ if !failOnce() {
+ t.Fatal("4th trigger should ban the IP")
+ }
+
+ entry, err = s.Bans.GetByIP(ip)
+ if err != nil {
+ t.Fatalf("get entry: %v", err)
+ }
+ wantExpiry := time.Now().Add(30 * time.Minute)
+ if entry.ExpiresAt.Before(wantExpiry.Add(-time.Minute)) || entry.ExpiresAt.After(wantExpiry.Add(time.Minute)) {
+ t.Fatalf("ban expiry = %v, want ~%v", entry.ExpiresAt, wantExpiry)
+ }
+ if !strings.Contains(entry.Reason, "第1次封禁") {
+ t.Fatalf("reason = %q, want 第1次封禁", entry.Reason)
+ }
+ if entry.BanCount != 4 {
+ t.Fatalf("ban_count = %d, want 4", entry.BanCount)
}
// IP 现在处于封禁状态
- banned, entry := s.Bans.IsBanned(ip)
- if !banned {
+ if banned, _ := s.Bans.IsBanned(ip); !banned {
t.Fatal("IP should be banned")
}
- if entry.ExpiresAt.Before(time.Now().Add(29 * time.Minute)) {
- t.Fatalf("ban expiry too short: %v", entry.ExpiresAt)
+}
+
+// TestStagedBanEscalation 验证封禁档位递增:30分钟 → 3小时 → 3个月 → 半年(上限)。
+func TestStagedBanEscalation(t *testing.T) {
+ s := newTestStores(t)
+ const ip = "203.0.113.11"
+ const maxFail = 2
+
+ failOnce := func() bool {
+ banned, _ := s.RecordAuthFailure(ip, maxFail, 30, "登录失败次数过多")
+ return banned
+ }
+
+ // 第 1 次触发需要 maxFail 次失败;此后每次失败即触发下一轮
+ if failOnce() {
+ t.Fatal("fail 1 must not trigger")
+ }
+ if failOnce() { // 触发 1
+ t.Fatal("trigger 1 must not ban")
+ }
+ if failOnce() { // 触发 2
+ t.Fatal("trigger 2 must not ban")
+ }
+ if failOnce() { // 触发 3
+ t.Fatal("trigger 3 must not ban")
+ }
+
+ // 第 4 次触发:30 分钟
+ if !failOnce() {
+ t.Fatal("trigger 4 should ban")
+ }
+ expectBanDuration(t, s, ip, 4, 30*time.Minute)
+
+ // 第 5 次:3 小时
+ expireBan(t, s, ip)
+ if !failOnce() {
+ t.Fatal("trigger 5 should ban")
+ }
+ expectBanDuration(t, s, ip, 5, 3*time.Hour)
+
+ // 第 6 次:3 个月
+ expireBan(t, s, ip)
+ if !failOnce() {
+ t.Fatal("trigger 6 should ban")
+ }
+ expectBanDuration(t, s, ip, 6, 90*24*time.Hour)
+
+ // 第 7 次:半年
+ expireBan(t, s, ip)
+ if !failOnce() {
+ t.Fatal("trigger 7 should ban")
+ }
+ expectBanDuration(t, s, ip, 7, 180*24*time.Hour)
+
+ // 第 8 次:仍为半年(上限)
+ expireBan(t, s, ip)
+ if !failOnce() {
+ t.Fatal("trigger 8 should ban")
+ }
+ expectBanDuration(t, s, ip, 8, 180*24*time.Hour)
+
+ entry, _ := s.Bans.GetByIP(ip)
+ if !strings.Contains(entry.Reason, "第5次封禁") {
+ t.Fatalf("reason = %q, want 第5次封禁", entry.Reason)
+ }
+}
+
+// expectBanDuration 断言该 IP 当前封禁时长约为 min(允许 2 分钟误差)。
+func expectBanDuration(t *testing.T, s *Stores, ip string, trigger int, min time.Duration) {
+ t.Helper()
+ entry, err := s.Bans.GetByIP(ip)
+ if err != nil {
+ t.Fatalf("trigger %d: %v", trigger, err)
+ }
+ diff := entry.ExpiresAt.Sub(time.Now())
+ if diff < min-2*time.Minute || diff > min+2*time.Minute {
+ t.Fatalf("trigger %d: ban duration = %v, want ~%v", trigger, diff, min)
+ }
+}
+
+// expireBan 把该 IP 的封禁记录改成已过期(模拟时间流逝)。
+func expireBan(t *testing.T, s *Stores, ip string) {
+ t.Helper()
+ entry, err := s.Bans.GetByIP(ip)
+ if err != nil {
+ t.Fatalf("get entry: %v", err)
+ }
+ entry.ExpiresAt = time.Now().Add(-time.Minute)
+ if err := s.Bans.Update(entry); err != nil {
+ t.Fatalf("update entry: %v", err)
+ }
+}
+
+// TestBanListOnlyBannedOrExpired 验证列表只返回封禁(含已过期)记录,
+// 仅计数的观察记录不出现。
+func TestBanListOnlyBannedOrExpired(t *testing.T) {
+ s := newTestStores(t)
+
+ // 观察记录:失败计数,未封禁(无到期时间)
+ if _, err := s.Bans.IncrementFail("203.0.113.20"); err != nil {
+ t.Fatalf("increment: %v", err)
+ }
+ // 当前生效的封禁
+ if err := s.Bans.Create(&db.BanEntry{
+ IPAddress: "198.51.100.21",
+ Reason: "第1次封禁:登录失败次数过多(第4次触发,失败5次)",
+ FailCount: 5,
+ BanCount: 4,
+ ExpiresAt: time.Now().Add(30 * time.Minute),
+ }); err != nil {
+ t.Fatalf("create ban: %v", err)
+ }
+ // 已过期的封禁(历史)
+ if err := s.Bans.Create(&db.BanEntry{
+ IPAddress: "198.51.100.22",
+ Reason: "第2次封禁:登录失败次数过多(第5次触发,失败6次)",
+ FailCount: 6,
+ BanCount: 5,
+ ExpiresAt: time.Now().Add(-24 * time.Hour),
+ }); err != nil {
+ t.Fatalf("create expired ban: %v", err)
+ }
+
+ entries, total, err := s.Bans.List(1, 10)
+ if err != nil {
+ t.Fatalf("list: %v", err)
+ }
+ if total != 2 {
+ t.Fatalf("total = %d, want 2", total)
+ }
+ if len(entries) != 2 {
+ t.Fatalf("len = %d, want 2", len(entries))
+ }
+ for _, e := range entries {
+ if e.ExpiresAt.Before(time.Date(2000, 1, 1, 0, 0, 0, 0, time.UTC)) {
+ t.Fatalf("observation record leaked into list: %+v", e)
+ }
}
}
// TestRecordAuthFailureEmptyIPSafe 空 IP 不应产生副作用。
func TestRecordAuthFailureEmptyIPSafe(t *testing.T) {
s := newTestStores(t)
- banned, count := s.RecordAuthFailure("", 3, 30)
+ banned, count := s.RecordAuthFailure("", 3, 30, "登录失败次数过多")
if banned || count != 0 {
t.Fatalf("empty IP must be a no-op: banned=%v count=%d", banned, count)
}
diff --git a/internal/store/ban_store.go b/internal/store/ban_store.go
index 50b8a87..9df25a9 100644
--- a/internal/store/ban_store.go
+++ b/internal/store/ban_store.go
@@ -8,16 +8,48 @@ import (
"gorm.io/gorm"
)
+// 阶段封禁档位(分钟/天),从第 4 次触发阈值开始封禁:
+// 第 4 次 = ban_duration_min(默认 30 分钟)→ 第 5 次 = 3 小时 →
+// 第 6 次 = 3 个月 → 第 7 次起 = 半年(上限)。
+const (
+ // freeTriggers 达到失败阈值但暂不封禁的触发次数(前 3 次只计数)。
+ freeTriggers = 3
+ banStage2Min = 3 * 60 // 3 小时
+ banStage3Day = 90 // 3 个月
+ banStage4Day = 180 // 半年(上限)
+ banMaxDay = banStage4Day
+)
+
+// stageDuration 返回第 banCount 次封禁(banCount 从 1 开始)的时长。
+// firstBanMin 是第一次封禁的分钟数(来自配置 [ban] ban_duration_min)。
+func stageDuration(banCount int, firstBanMin int) time.Duration {
+ switch banCount {
+ case 1:
+ if firstBanMin <= 0 {
+ firstBanMin = 30
+ }
+ return time.Duration(firstBanMin) * time.Minute
+ case 2:
+ return time.Duration(banStage2Min) * time.Minute
+ case 3:
+ return time.Duration(banStage3Day) * 24 * time.Hour
+ default:
+ return time.Duration(banMaxDay) * 24 * time.Hour
+ }
+}
+
// BanStore defines the interface for IP ban operations.
type BanStore interface {
Create(entry *db.BanEntry) error
GetByIP(ip string) (*db.BanEntry, error)
+ Update(entry *db.BanEntry) error
Delete(id uint) error
+ // List 返回已封禁或曾封禁的记录(不含仅计数未封禁的观察记录)。
List(page, size int) ([]db.BanEntry, int64, error)
IsBanned(ip string) (bool, *db.BanEntry)
+ // IncrementFail 累加该 IP 的失败次数(无记录时创建),保留 BanCount。
IncrementFail(ip string) (int, error)
ResetFail(ip string) error
- Cleanup() error
}
// banStoreGorm implements BanStore using GORM.
@@ -44,22 +76,33 @@ func (s *banStoreGorm) GetByIP(ip string) (*db.BanEntry, error) {
return &entry, nil
}
+// Update saves changes to an existing ban entry record.
+func (s *banStoreGorm) Update(entry *db.BanEntry) error {
+ return s.db.Save(entry).Error
+}
+
// Delete removes a ban entry by ID.
func (s *banStoreGorm) Delete(id uint) error {
return s.db.Delete(&db.BanEntry{}, id).Error
}
-// List retrieves a paginated list of ban entries.
+// banEpochSentinel 用于区分“未封禁的计数记录”(expires_at 为零值):
+// 所有实际封禁记录的到期时间都晚于 2000 年。
+var banEpochSentinel = time.Date(2000, 1, 1, 0, 0, 0, 0, time.UTC)
+
+// List retrieves a paginated list of ban entries that are or have been
+// banned (expires_at set). 仅计数的观察记录(零到期时间、无原因)不返回。
func (s *banStoreGorm) List(page, size int) ([]db.BanEntry, int64, error) {
var entries []db.BanEntry
var total int64
- if err := s.db.Model(&db.BanEntry{}).Count(&total).Error; err != nil {
+ query := s.db.Model(&db.BanEntry{}).Where("expires_at > ?", banEpochSentinel)
+ if err := query.Count(&total).Error; err != nil {
return nil, 0, err
}
offset := (page - 1) * size
- if err := s.db.Order("id DESC").Offset(offset).Limit(size).Find(&entries).Error; err != nil {
+ if err := query.Order("id DESC").Offset(offset).Limit(size).Find(&entries).Error; err != nil {
return nil, 0, err
}
return entries, total, nil
@@ -76,7 +119,8 @@ func (s *banStoreGorm) IsBanned(ip string) (bool, *db.BanEntry) {
}
// IncrementFail increments the fail count for an IP address.
-// If no record exists, it creates one with fail_count=1 and a zero expires_at.
+// If no record exists, it creates one with fail_count=1, ban_count=0 and a
+// zero expires_at (not yet banned). Existing BanCount is preserved.
// Returns the updated fail count.
func (s *banStoreGorm) IncrementFail(ip string) (int, error) {
var entry db.BanEntry
@@ -86,6 +130,7 @@ func (s *banStoreGorm) IncrementFail(ip string) (int, error) {
entry = db.BanEntry{
IPAddress: ip,
FailCount: 1,
+ BanCount: 0,
ExpiresAt: time.Time{}, // Zero time, not yet banned
}
if createErr := s.db.Create(&entry).Error; createErr != nil {
@@ -103,13 +148,7 @@ func (s *banStoreGorm) IncrementFail(ip string) (int, error) {
}
// ResetFail resets the fail count for an IP address by deleting its record.
+// 成功登录(或管理员解封)后调用:封禁档位历史随之清零。
func (s *banStoreGorm) ResetFail(ip string) error {
return s.db.Where("ip_address = ?", ip).Delete(&db.BanEntry{}).Error
}
-
-// Cleanup removes expired ban entries.
-// It deletes records where expires_at is in the past and is not zero
-// (preserving records that have fail counts but are not yet banned).
-func (s *banStoreGorm) Cleanup() error {
- return s.db.Where("expires_at < ? AND expires_at > ?", time.Now(), time.Time{}).Delete(&db.BanEntry{}).Error
-}
diff --git a/internal/web/handlers/admin.go b/internal/web/handlers/admin.go
index 251cd32..b54729f 100644
--- a/internal/web/handlers/admin.go
+++ b/internal/web/handlers/admin.go
@@ -721,9 +721,6 @@ func (h *AdminHandler) UpdateUser(c *gin.Context) {
// ListBans renders the IP ban list page.
func (h *AdminHandler) ListBans(c *gin.Context) {
- // Clean up expired entries first
- h.stores.Bans.Cleanup()
-
page := getPageParam(c, "page", 1)
bans, total, err := h.stores.Bans.List(page, 20)
@@ -732,6 +729,13 @@ func (h *AdminHandler) ListBans(c *gin.Context) {
return
}
+ // 标记当前是否仍处于封禁中
+ now := time.Now()
+ rows := make([]banRow, 0, len(bans))
+ for _, b := range bans {
+ rows = append(rows, banRow{BanEntry: b, Active: b.ExpiresAt.After(now)})
+ }
+
currentUser, _ := c.Get("currentUser")
totalPages := int(total) / 20
@@ -744,7 +748,7 @@ func (h *AdminHandler) ListBans(c *gin.Context) {
c.HTML(200, "admin_bans", gin.H{
"currentUser": currentUser,
- "bans": bans,
+ "rows": rows,
"total": total,
"page": page,
"pageSize": 20,
@@ -753,6 +757,12 @@ func (h *AdminHandler) ListBans(c *gin.Context) {
})
}
+// banRow 是黑名单列表行:附带了当前是否封禁中的标记。
+type banRow struct {
+ db.BanEntry
+ Active bool
+}
+
// UnbanIP removes a ban entry by ID.
func (h *AdminHandler) UnbanIP(c *gin.Context) {
id, err := strconv.ParseUint(c.Param("id"), 10, 64)
@@ -769,12 +779,6 @@ func (h *AdminHandler) UnbanIP(c *gin.Context) {
c.Redirect(http.StatusFound, "/admin/bans")
}
-// CleanupBans removes all expired ban entries.
-func (h *AdminHandler) CleanupBans(c *gin.Context) {
- h.stores.Bans.Cleanup()
- c.Redirect(http.StatusFound, "/admin/bans")
-}
-
// ListProtocolLogs 渲染协议调用日志页(SMTP/IMAP/POP3 调用记录,支持筛选)。
func (h *AdminHandler) ListProtocolLogs(c *gin.Context) {
// 页面访问时顺带清理过期日志,避免日志表无限增长
diff --git a/internal/web/handlers/auth.go b/internal/web/handlers/auth.go
index 206037d..da7c459 100644
--- a/internal/web/handlers/auth.go
+++ b/internal/web/handlers/auth.go
@@ -11,7 +11,6 @@ import (
"mail_go/config"
"mail_go/internal/auth"
- "mail_go/internal/db"
"mail_go/internal/store"
"github.com/gin-contrib/sessions"
@@ -74,19 +73,10 @@ func (h *AuthHandler) DoLogin(c *gin.Context) {
user, err := h.stores.Users.Authenticate(email, password)
if err != nil {
- failCount, _ := h.stores.Bans.IncrementFail(ip)
-
- if failCount >= h.banCfg.MaxFailAttempts {
- banDuration := time.Duration(h.banCfg.BanDurationMin) * time.Minute
- banEntry := &db.BanEntry{
- IPAddress: ip,
- Reason: fmt.Sprintf("登录失败次数过多 (%d次)", failCount),
- FailCount: failCount,
- ExpiresAt: time.Now().Add(banDuration),
- }
- h.stores.Bans.Create(banEntry)
-
- c.HTML(http.StatusForbidden, "banned", gin.H{"entry": banEntry})
+ banned, failCount := h.stores.RecordAuthFailure(ip, h.banCfg.MaxFailAttempts, h.banCfg.BanDurationMin, "登录失败次数过多")
+ if banned {
+ entry, _ := h.stores.Bans.GetByIP(ip)
+ c.HTML(http.StatusForbidden, "banned", gin.H{"entry": entry})
return
}
@@ -156,18 +146,10 @@ func (h *AuthHandler) LDAPLogin(c *gin.Context) {
if err != nil {
log.Printf("LDAP 认证失败: %v", err)
- failCount, _ := h.stores.Bans.IncrementFail(ip)
- if failCount >= h.banCfg.MaxFailAttempts {
- banDuration := time.Duration(h.banCfg.BanDurationMin) * time.Minute
- banEntry := &db.BanEntry{
- IPAddress: ip,
- Reason: fmt.Sprintf("登录失败次数过多 (%d次)", failCount),
- FailCount: failCount,
- ExpiresAt: time.Now().Add(banDuration),
- }
- h.stores.Bans.Create(banEntry)
-
- c.HTML(http.StatusForbidden, "banned", gin.H{"entry": banEntry})
+ banned, failCount := h.stores.RecordAuthFailure(ip, h.banCfg.MaxFailAttempts, h.banCfg.BanDurationMin, "LDAP 登录失败次数过多")
+ if banned {
+ entry, _ := h.stores.Bans.GetByIP(ip)
+ c.HTML(http.StatusForbidden, "banned", gin.H{"entry": entry})
return
}
diff --git a/internal/web/render_test.go b/internal/web/render_test.go
index 83439b8..915fa6a 100644
--- a/internal/web/render_test.go
+++ b/internal/web/render_test.go
@@ -68,6 +68,18 @@ func TestRenderAllPages(t *testing.T) {
}},
{"settings", ginH{"currentUser": user, "activeFolder": "settings", "error": "", "success": "", "inboxUnread": int64(2), "draftsTotal": int64(1), "sentTotal": int64(3)}},
{"admin_dashboard", ginH{"currentUser": user, "activeFolder": "admin", "domainCount": 2, "userCount": 5, "totalMails": 100, "banCount": 1, "inboxCount": 50, "sentCount": 30, "draftsCount": 10, "trashCount": 5, "inboxSize": int64(1024), "sentSize": int64(512), "totalSize": int64(2048), "todayReceived": 3, "todaySent": 2, "weekReceived": 20, "weekSent": 15}},
+ {"admin_bans", ginH{
+ "currentUser": user, "activeFolder": "bans",
+ "rows": []struct {
+ db.BanEntry
+ Active bool
+ }{
+ {BanEntry: db.BanEntry{IPAddress: "203.0.113.7", BanCount: 4, FailCount: 5, Reason: "第1次封禁:登录失败次数过多(第4次触发,失败5次)", ExpiresAt: now.Add(20 * time.Minute)}, Active: true},
+ {BanEntry: db.BanEntry{IPAddress: "203.0.113.9", BanCount: 5, FailCount: 6, Reason: "第2次封禁:邮件协议认证失败次数过多(第5次触发,失败6次)", ExpiresAt: now.Add(-24 * time.Hour)}, Active: false},
+ {BanEntry: db.BanEntry{IPAddress: "10.0.0.2", BanCount: 1, FailCount: 5, Reason: "", ExpiresAt: time.Time{}}, Active: false},
+ },
+ "total": 3, "page": 1, "pageSize": 20, "totalPages": 1,
+ }},
{"admin_protocol_logs", ginH{
"currentUser": user, "activeFolder": "protocol-logs",
"logs": []db.ProtocolLog{
diff --git a/internal/web/server.go b/internal/web/server.go
index 674d55f..4fc3fee 100644
--- a/internal/web/server.go
+++ b/internal/web/server.go
@@ -296,7 +296,6 @@ func (ws *WebServer) registerRoutes() {
admin.POST("/outbound/:id/cancel", adminHandler.CancelOutbound)
admin.GET("/bans", adminHandler.ListBans)
admin.POST("/bans/:id/unban", adminHandler.UnbanIP)
- admin.POST("/bans/cleanup", adminHandler.CleanupBans)
admin.GET("/protocol-logs", adminHandler.ListProtocolLogs)
admin.POST("/protocol-logs/cleanup", adminHandler.CleanupProtocolLogs)
}
diff --git a/internal/web/templates/admin/bans.html b/internal/web/templates/admin/bans.html
index 6f42ff2..5c41dd9 100644
--- a/internal/web/templates/admin/bans.html
+++ b/internal/web/templates/admin/bans.html
@@ -18,25 +18,21 @@
用户管理
所有邮件
外发队列
- 协议日志
-IP黑名单
+ 协议日志
+ IP黑名单
IP 黑名单
-
+ 阶段性封禁:第 4 次触发起封禁,30分钟 → 3小时 → 3个月 → 半年(上限)
- {{if not .bans}}
-
暂无被封禁的 IP
- {{else}}
- | ID |
IP 地址 |
+ 状态 |
+ 封禁次数 |
失败次数 |
原因 |
到期时间 |
@@ -44,16 +40,24 @@
- {{range .bans}}
+ {{range .rows}}
- | {{.ID}} |
{{.IPAddress}} |
+
+ {{if .Active}}封禁中
+ {{else}}已过期{{end}}
+ |
+
+ {{if .BanCount}}
+ {{if gt .BanCount 3}}第{{sub .BanCount 3}}次封禁{{else}}仅计数{{end}}
+ {{else}}—{{end}}
+ |
{{.FailCount}} |
- {{.Reason}} |
- {{.ExpiresAt.Format "2006-01-02 15:04:05"}} |
+ {{if .Reason}}{{.Reason}}{{else}}—{{end}} |
+ {{.ExpiresAt.Format "2006-01-02 15:04:05"}}{{if not .Active}}(已过期){{end}} |
|
@@ -61,6 +65,8 @@
{{end}}
+ {{if not .rows}}
+
暂无封禁记录
{{end}}
{{if .totalPages}}
@@ -68,7 +74,7 @@
{{if gt .page 1}}
上一页
{{end}}
-
第 {{.page}} / {{.totalPages}} 页
+
第 {{.page}} / {{.totalPages}} 页(共 {{.total}} 条)
{{if lt .page .totalPages}}
下一页
{{end}}
diff --git a/internal/web/templates/banned.html b/internal/web/templates/banned.html
index 3a53467..e700b2d 100644
--- a/internal/web/templates/banned.html
+++ b/internal/web/templates/banned.html
@@ -51,6 +51,10 @@
IP 地址
{{.entry.IPAddress}}
+
+ 封禁档位
+ {{if gt .entry.BanCount 3}}第 {{sub .entry.BanCount 3}} 次封禁{{else}}—{{end}}
+
原因
{{.entry.Reason}}