204 lines
6.6 KiB
Rust
204 lines
6.6 KiB
Rust
use serde::Deserialize;
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/// SMTP 收信服务配置（临时邮箱核心）
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#[derive(Debug, Deserialize, Clone)]
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pub struct SmtpConfig {
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/// 是否启用 SMTP 收信（监听 25 端口）
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#[serde(default = "default_enabled")]
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pub enabled: bool,
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/// 监听地址
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#[serde(default = "default_listen_host")]
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pub listen_host: String,
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/// 监听端口（默认 25）
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#[serde(default = "default_listen_port")]
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pub listen_port: u16,
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/// 本机主机名（SMTP 问候时使用，如 mail.shenjianl.cn）
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#[serde(default = "default_hostname")]
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pub hostname: String,
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/// 允许的收件域名白名单（只收这些域名的邮件）
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#[serde(default = "default_local_domains")]
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pub local_domains: Vec<String>,
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/// 单封邮件最大字节数
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#[serde(default = "default_max_message_bytes")]
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pub max_message_bytes: usize,
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/// 单连接超时秒数
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#[serde(default = "default_connection_timeout_seconds")]
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pub connection_timeout_seconds: u64,
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/// 单封邮件最大收件人数
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#[serde(default = "default_max_recipients")]
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pub max_recipients_per_message: u32,
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// ===== 限流（IP 连接 + 发件域 + 收件地址） =====
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/// 单 IP 每分钟最大连接数
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#[serde(default = "default_ip_connect_per_min")]
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pub ip_connect_per_min: u32,
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/// 单发件域每分钟最大邮件数
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#[serde(default = "default_domain_per_min")]
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pub domain_per_min: u32,
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/// 单收件地址每分钟最大邮件数
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#[serde(default = "default_rcpt_per_min")]
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pub rcpt_per_min: u32,
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/// 单发件人每分钟最大邮件数
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#[serde(default = "default_sender_per_min")]
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pub sender_per_min: u32,
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/// 单（发件域→收件地址）每 10 分钟最大邮件数
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#[serde(default = "default_pair_per_10min")]
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pub pair_per_10min: u32,
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// ===== PTR 反查 =====
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/// 是否要求来源 IP 有有效 PTR 记录
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#[serde(default = "default_require_ptr")]
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pub require_ptr: bool,
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// ===== 灰名单 =====
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#[serde(default = "default_greylist_enabled")]
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pub greylist_enabled: bool,
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#[serde(default = "default_greylist_retry_delay_seconds")]
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pub greylist_retry_delay_seconds: i64,
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#[serde(default = "default_greylist_entry_ttl_seconds")]
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pub greylist_entry_ttl_seconds: i64,
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// ===== 滥用评分 =====
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/// 达到此分数的邮件进入隔离区
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#[serde(default = "default_quarantine_threshold")]
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pub quarantine_threshold: i32,
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#[serde(default = "default_score_weight_subject_code")]
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pub score_weight_subject_code: i32,
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#[serde(default = "default_score_weight_spf_fail")]
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pub score_weight_spf_fail: i32,
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#[serde(default = "default_score_weight_ptr_missing")]
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pub score_weight_ptr_missing: i32,
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#[serde(default = "default_score_weight_bad_attachment")]
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pub score_weight_bad_attachment: i32,
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// ===== 保留期与配额 =====
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/// 邮件保留天数（超过自动清理）
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#[serde(default = "default_email_ttl_days")]
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pub email_ttl_days: i64,
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/// 新建临时邮箱默认有效期（小时）
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#[serde(default = "default_mailbox_ttl_hours")]
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pub mailbox_ttl_hours: i64,
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/// 单邮箱最大容量（字节）
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#[serde(default = "default_mailbox_max_quota_bytes")]
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pub mailbox_max_quota_bytes: i64,
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/// 随机生成的邮箱本地部分长度
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#[serde(default = "default_address_local_part_len")]
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pub address_local_part_len: usize,
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/// 邮件正文加密密钥（必须恰好 32 字符；留空则不加密）
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#[serde(default)]
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pub body_encryption_key: String,
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}
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fn default_enabled() -> bool {
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true
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}
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fn default_listen_host() -> String {
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"0.0.0.0".to_string()
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}
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fn default_listen_port() -> u16 {
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25
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}
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fn default_hostname() -> String {
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"mail.shenjianl.cn".to_string()
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}
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fn default_local_domains() -> Vec<String> {
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vec!["mail.shenjianl.cn".to_string(), "shenjianl.cn".to_string()]
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}
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fn default_max_message_bytes() -> usize {
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1024 * 1024
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}
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fn default_connection_timeout_seconds() -> u64 {
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30
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}
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fn default_max_recipients() -> u32 {
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1
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}
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fn default_ip_connect_per_min() -> u32 {
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20
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}
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fn default_domain_per_min() -> u32 {
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10
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}
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fn default_rcpt_per_min() -> u32 {
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10
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}
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fn default_sender_per_min() -> u32 {
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10
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}
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fn default_pair_per_10min() -> u32 {
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5
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}
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fn default_require_ptr() -> bool {
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true
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}
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fn default_greylist_enabled() -> bool {
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true
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}
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fn default_greylist_retry_delay_seconds() -> i64 {
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300
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}
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fn default_greylist_entry_ttl_seconds() -> i64 {
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86400
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}
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fn default_quarantine_threshold() -> i32 {
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60
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}
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fn default_score_weight_subject_code() -> i32 {
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30
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}
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fn default_score_weight_spf_fail() -> i32 {
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20
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}
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fn default_score_weight_ptr_missing() -> i32 {
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15
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}
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fn default_score_weight_bad_attachment() -> i32 {
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25
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}
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fn default_email_ttl_days() -> i64 {
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7
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}
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fn default_mailbox_ttl_hours() -> i64 {
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24
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}
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fn default_mailbox_max_quota_bytes() -> i64 {
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10 * 1024 * 1024
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}
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fn default_address_local_part_len() -> usize {
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10
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}
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impl Default for SmtpConfig {
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fn default() -> Self {
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Self {
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enabled: default_enabled(),
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listen_host: default_listen_host(),
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listen_port: default_listen_port(),
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hostname: default_hostname(),
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local_domains: default_local_domains(),
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max_message_bytes: default_max_message_bytes(),
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connection_timeout_seconds: default_connection_timeout_seconds(),
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max_recipients_per_message: default_max_recipients(),
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ip_connect_per_min: default_ip_connect_per_min(),
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domain_per_min: default_domain_per_min(),
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rcpt_per_min: default_rcpt_per_min(),
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sender_per_min: default_sender_per_min(),
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pair_per_10min: default_pair_per_10min(),
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require_ptr: default_require_ptr(),
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greylist_enabled: default_greylist_enabled(),
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greylist_retry_delay_seconds: default_greylist_retry_delay_seconds(),
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greylist_entry_ttl_seconds: default_greylist_entry_ttl_seconds(),
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quarantine_threshold: default_quarantine_threshold(),
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score_weight_subject_code: default_score_weight_subject_code(),
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score_weight_spf_fail: default_score_weight_spf_fail(),
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score_weight_ptr_missing: default_score_weight_ptr_missing(),
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score_weight_bad_attachment: default_score_weight_bad_attachment(),
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email_ttl_days: default_email_ttl_days(),
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mailbox_ttl_hours: default_mailbox_ttl_hours(),
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mailbox_max_quota_bytes: default_mailbox_max_quota_bytes(),
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address_local_part_len: default_address_local_part_len(),
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body_encryption_key: String::new(),
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}
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}
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}
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