192 lines
8.2 KiB
Go
192 lines
8.2 KiB
Go
package db
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import (
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"time"
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)
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// User represents a mail user in the system.
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type User struct {
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ID uint `gorm:"primaryKey" json:"id"`
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Username string `gorm:"size:64;not null" json:"username"`
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PasswordHash string `gorm:"size:255;not null" json:"-"`
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DomainID uint `gorm:"index" json:"domain_id"`
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Domain Domain `gorm:"foreignKey:DomainID" json:"domain"`
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QuotaBytes int64 `gorm:"default:5368709120" json:"quota_bytes"`
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UsedBytes int64 `gorm:"default:0" json:"used_bytes"`
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IsActive bool `gorm:"default:true" json:"is_active"`
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IsAdmin bool `gorm:"default:false" json:"is_admin"`
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// MustChangePassword 为 true 时该用户（通常是初始管理员或被重置密码的
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// 用户）在首次登录后必须修改密码。
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MustChangePassword bool `gorm:"default:false" json:"-"`
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CreatedAt time.Time `json:"created_at"`
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UpdatedAt time.Time `json:"updated_at"`
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}
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// TableName specifies the table name for User.
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func (User) TableName() string {
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return "users"
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}
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// Domain represents a mail domain in the system.
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type Domain struct {
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ID uint `gorm:"primaryKey" json:"id"`
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Name string `gorm:"size:255;uniqueIndex;not null" json:"name"`
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SmtpPort int `gorm:"default:25" json:"smtp_port"`
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ImapPort int `gorm:"default:143" json:"imap_port"`
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Pop3Port int `gorm:"default:110" json:"pop3_port"`
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TlsCertPath string `gorm:"size:512" json:"tls_cert_path"`
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TlsKeyPath string `gorm:"size:512" json:"tls_key_path"`
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TlsEnabled bool `gorm:"default:false" json:"tls_enabled"`
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DkimSelector string `gorm:"size:64;default:default" json:"dkim_selector"`
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DkimPrivateKey string `gorm:"size:4096" json:"-"`
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DkimPublicKey string `gorm:"size:1024" json:"-"`
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CreatedAt time.Time `json:"created_at"`
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UpdatedAt time.Time `json:"updated_at"`
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}
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// TableName specifies the table name for Domain.
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func (Domain) TableName() string {
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return "domains"
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}
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// Message represents an email message in the system.
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type Message struct {
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ID uint `gorm:"primaryKey" json:"id"`
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UserID uint `gorm:"index;not null" json:"user_id"`
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User User `gorm:"foreignKey:UserID" json:"user"`
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MessageID string `gorm:"size:255;index" json:"message_id"`
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Folder string `gorm:"size:64;default:INBOX;index" json:"folder"`
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FromAddr string `gorm:"size:512;not null" json:"from_addr"`
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ToAddr string `gorm:"size:2048;not null" json:"to_addr"`
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CcAddr string `gorm:"size:2048" json:"cc_addr"`
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Subject string `gorm:"size:1024" json:"subject"`
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TextBody string `gorm:"type:mediumtext" json:"text_body"`
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HtmlBody string `gorm:"type:mediumtext" json:"html_body"`
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RawData string `gorm:"type:mediumtext" json:"raw_data"`
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IsRead bool `gorm:"default:false" json:"is_read"`
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IsFlagged bool `gorm:"default:false" json:"is_flagged"`
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Date time.Time `json:"date"`
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CreatedAt time.Time `json:"created_at"`
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}
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// TableName specifies the table name for Message.
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func (Message) TableName() string {
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return "messages"
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}
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// Outbound message delivery statuses.
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const (
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OutboundStatusPending = "pending" // 等待发送
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OutboundStatusSending = "sending" // 发送中
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OutboundStatusSent = "sent" // 已送达
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OutboundStatusDeferred = "deferred" // 临时失败，等待重试
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OutboundStatusFailed = "failed" // 永久失败/超过重试上限
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OutboundStatusCanceled = "canceled" // 管理员取消
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)
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// OutboundMessage represents a message queued for delivery to an external domain.
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type OutboundMessage struct {
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ID uint `gorm:"primaryKey" json:"id"`
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MessageID string `gorm:"size:255;index" json:"message_id"`
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UserID uint `gorm:"index" json:"user_id"` // 发件用户 ID（Web/SMTP 提交用户）
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FromAddr string `gorm:"size:512;not null" json:"from_addr"`
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ToAddr string `gorm:"size:512;not null" json:"to_addr"`
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RecipientDom string `gorm:"size:255;index" json:"recipient_dom"`
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RawData string `gorm:"type:mediumtext" json:"-"` // DKIM 签名后的完整邮件
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Status string `gorm:"size:32;default:pending;index" json:"status"`
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Attempts int `gorm:"default:0" json:"attempts"`
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NextAttemptAt time.Time `gorm:"index" json:"next_attempt_at"`
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LastResponse string `gorm:"size:1024" json:"last_response"`
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LastError string `gorm:"size:1024" json:"last_error"`
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CompletedAt *time.Time `json:"completed_at"`
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CreatedAt time.Time `json:"created_at"`
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UpdatedAt time.Time `json:"updated_at"`
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}
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// TableName specifies the table name for OutboundMessage.
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func (OutboundMessage) TableName() string {
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return "outbound_messages"
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}
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// BanEntry represents an IP address that has been banned due to excessive login failures.
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type BanEntry struct {
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ID uint `gorm:"primaryKey" json:"id"`
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IPAddress string `gorm:"size:45;index;not null" json:"ip_address"`
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Reason string `gorm:"size:255" json:"reason"`
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FailCount int `gorm:"default:0" json:"fail_count"`
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// BanCount 是该 IP 累计达到失败阈值的次数（含未封禁的前几次）。
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// 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。
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// 成功登录或管理员解封会删除记录，次数随之清零。
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BanCount int `gorm:"default:0" json:"ban_count"`
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ExpiresAt time.Time `gorm:"index" json:"expires_at"`
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CreatedAt time.Time `json:"created_at"`
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UpdatedAt time.Time `json:"updated_at"`
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}
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// TableName specifies the table name for BanEntry.
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func (BanEntry) TableName() string { return "ban_entries" }
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// Protocol log statuses.
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const (
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ProtocolSMTP = "smtp"
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ProtocolIMAP = "imap"
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ProtocolPOP3 = "pop3"
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)
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// ProtocolLog records one SMTP/IMAP/POP3 connection session: auth result,
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// failure reason and source IP, for admin analysis of attacks/abuse.
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type ProtocolLog struct {
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ID uint `gorm:"primaryKey" json:"id"`
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Protocol string `gorm:"size:16;index;not null" json:"protocol"` // smtp | imap | pop3
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Port int `json:"port"` // 25/465/587/143/993/110/995
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ClientIP string `gorm:"size:64;index;not null" json:"client_ip"`
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Username string `gorm:"size:255;index" json:"username"`
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Success bool `gorm:"index" json:"success"`
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FailReason string `gorm:"size:512" json:"fail_reason"`
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Detail string `gorm:"size:2048" json:"detail"`
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MsgCount int `json:"msg_count"`
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DurationMs int64 `json:"duration_ms"`
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CreatedAt time.Time `gorm:"index" json:"created_at"`
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}
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// TableName specifies the table name for ProtocolLog.
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func (ProtocolLog) TableName() string {
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return "protocol_logs"
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}
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// Attachment represents a file attached to an email message.
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// 注意：不声明 Message 关联（避免 GORM 外键名 MessageID 与
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// Message.MessageID 字符串字段冲突，导致 AutoMigrate 生成错误外键）。
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type Attachment struct {
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ID uint `gorm:"primaryKey" json:"id"`
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MessageID uint `gorm:"index;not null" json:"message_id"`
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FileName string `gorm:"size:255;not null" json:"file_name"`
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FilePath string `gorm:"size:512;not null" json:"file_path"`
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ContentType string `gorm:"size:128" json:"content_type"`
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FileSize int64 `json:"file_size"`
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CreatedAt time.Time `json:"created_at"`
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}
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// TableName specifies the table name for Attachment.
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func (Attachment) TableName() string {
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return "attachments"
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}
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// MailboxState 记录每个邮箱（用户+文件夹）的持久化 IMAP 状态。
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// UidValidity 在首次访问时随机生成并持久化：数据库重建（消息 ID 空间
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// 变化）后该值随之改变，客户端（Thunderbird 等）会据此丢弃本地缓存
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// 并全量重新同步。此前硬编码为 1，数据库重建后客户端缓存永不失效，
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// 导致只显示/下载少量"缺失"邮件。
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type MailboxState struct {
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UserID uint `gorm:"primaryKey" json:"user_id"`
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Folder string `gorm:"primaryKey;size:64" json:"folder"`
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UidValidity uint32 `gorm:"not null" json:"uid_validity"`
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CreatedAt time.Time
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UpdatedAt time.Time
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}
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// TableName specifies the table name for MailboxState.
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func (MailboxState) TableName() string {
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return "mailbox_states"
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}
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