57 lines
1.4 KiB
Go
57 lines
1.4 KiB
Go
package validation
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import (
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"errors"
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"strings"
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)
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var ErrNotificationRecipient = errors.New("notification address does not accept mail")
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// notification 为主发信账号；notification+system 为历史保留兼容账号。
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// 两者均为系统保留地址，禁止普通用户占用，且拒收任何外部来信。
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const (
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NotificationLocalPart = "notification"
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LegacyNotificationLocalPart = "notification+system"
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)
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func NotificationAddress(domain string) string {
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if domain == "" {
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return ""
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}
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return NotificationLocalPart + "@" + domain
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}
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func LegacyNotificationAddress(domain string) string {
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if domain == "" {
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return ""
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}
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return LegacyNotificationLocalPart + "@" + domain
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}
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func IsNotificationAddress(address string, domains []string) bool {
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parts := strings.Split(strings.ToLower(strings.TrimSpace(address)), "@")
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if len(parts) != 2 {
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return false
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}
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if parts[0] != NotificationLocalPart && parts[0] != LegacyNotificationLocalPart {
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return false
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}
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for _, domain := range domains {
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if strings.EqualFold(parts[1], domain) {
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return true
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}
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}
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return false
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}
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func IsAuthorizedNotificationSender(address, domain string) bool {
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if domain == "" {
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return false
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}
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parts := strings.Split(strings.ToLower(strings.TrimSpace(address)), "@")
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if len(parts) != 2 || !strings.EqualFold(parts[1], domain) {
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return false
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}
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return parts[0] == NotificationLocalPart || parts[0] == LegacyNotificationLocalPart
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}
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