mirror of
https://github.com/MHSanaei/3x-ui.git
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MHSanaei
4915d6b18d
Switch reality target, node options, and WARP auto-update-IP hints from inline extra text to label tooltips for a cleaner form layout.
183 lines
6.6 KiB
Go
183 lines
6.6 KiB
Go
package email
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import (
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"fmt"
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"os"
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"strconv"
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"strings"
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"time"
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"github.com/mhsanaei/3x-ui/v3/internal/eventbus"
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"github.com/mhsanaei/3x-ui/v3/internal/logger"
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"github.com/mhsanaei/3x-ui/v3/internal/web/locale"
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"github.com/mhsanaei/3x-ui/v3/internal/web/service"
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)
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// Subscriber handles event bus messages and sends email notifications.
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type Subscriber struct {
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settingService service.SettingService
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emailService *EmailService
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limiter *eventbus.RateLimiter
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}
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// NewSubscriber creates a new email event subscriber.
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func NewSubscriber(settingService service.SettingService, emailService *EmailService) *Subscriber {
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return &Subscriber{
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settingService: settingService,
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emailService: emailService,
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limiter: eventbus.NewRateLimiter(1 * time.Minute),
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}
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}
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// HandleEvent is the eventbus subscriber callback.
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func (s *Subscriber) HandleEvent(e eventbus.Event) {
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if !s.isEventEnabled(e.Type) {
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return
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}
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if e.Type != eventbus.EventLoginAttempt {
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if !s.limiter.Allow(e.Type, e.Source) {
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return
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}
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}
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subject, body := s.formatMessage(e)
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if subject == "" {
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return
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}
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if err := s.emailService.Send(subject, body); err != nil {
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logger.Warning("email subscriber: send failed:", err)
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}
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}
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func (s *Subscriber) isEventEnabled(t eventbus.EventType) bool {
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events, err := s.settingService.GetSmtpEnabledEvents()
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if err != nil || events == "" {
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return false
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}
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for e := range strings.SplitSeq(events, ",") {
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if strings.TrimSpace(e) == string(t) {
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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 i18n(key string, params ...string) string {
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return locale.I18n(locale.Bot, key, params...)
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}
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func (s *Subscriber) formatMessage(e eventbus.Event) (subject, body string) {
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h, _ := hostname()
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host := h
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ts := e.Timestamp.Format("2006-01-02 15:04:05")
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wrap := func(title, content string) string {
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// Strip newlines from title to prevent broken HTML
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title = strings.ReplaceAll(title, "\r\n", "")
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title = strings.ReplaceAll(title, "\n", "")
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return fmt.Sprintf(`<html><body style="font-family:monospace;font-size:14px;color:#333">
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<h2 style="color:#555;border-bottom:1px solid #ddd;padding-bottom:8px">📡 %s %s</h2>
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%s
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<p style="color:#999;font-size:12px;margin-top:20px">%s</p>
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</body></html>`, host, title, content, i18n("tgbot.messages.time", "Time=="+ts))
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}
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kv := func(key, val string) string {
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return fmt.Sprintf("<p><b>%s:</b> %s</p>", key, val)
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}
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switch e.Type {
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case eventbus.EventOutboundDown:
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subject = host + " " + i18n("tgbot.messages.eventOutboundDown", "Tag=="+e.Source)
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content := kv(i18n("email.labelStatus"), `<span style="color:red">`+i18n("email.statusDown")+`</span>`)
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content += kv(i18n("email.labelOutbound"), e.Source)
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if data, ok := e.Data.(*eventbus.OutboundHealthData); ok {
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if data.Error != "" {
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content += kv(i18n("email.labelError"), data.Error)
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}
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if data.Delay > 0 {
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content += kv(i18n("email.labelDelay"), fmt.Sprintf("%dms", data.Delay))
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}
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}
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body = wrap(i18n("tgbot.messages.eventOutboundDown", "Tag=="+e.Source), content)
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case eventbus.EventOutboundUp:
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subject = host + " " + i18n("tgbot.messages.eventOutboundUp", "Tag=="+e.Source)
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content := kv(i18n("email.labelStatus"), `<span style="color:green">`+i18n("email.statusUp")+`</span>`)
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content += kv(i18n("email.labelOutbound"), e.Source)
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if data, ok := e.Data.(*eventbus.OutboundHealthData); ok && data.Delay > 0 {
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content += kv(i18n("email.labelDelay"), fmt.Sprintf("%dms", data.Delay))
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}
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body = wrap(i18n("tgbot.messages.eventOutboundUp", "Tag=="+e.Source), content)
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case eventbus.EventXrayCrash:
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subject = host + " " + i18n("tgbot.messages.eventXrayCrash")
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content := kv(i18n("email.labelStatus"), `<span style="color:red">`+i18n("email.statusCrashed")+`</span>`)
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if e.Data != nil {
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content += kv(i18n("email.labelError"), fmt.Sprint(e.Data))
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}
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body = wrap(i18n("tgbot.messages.eventXrayCrash"), content)
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case eventbus.EventNodeDown:
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subject = host + " " + i18n("tgbot.messages.eventNodeDown", "Name=="+e.Source)
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content := kv(i18n("email.labelStatus"), `<span style="color:red">`+i18n("email.statusDown")+`</span>`)
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content += kv(i18n("email.labelNode"), e.Source)
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if data, ok := e.Data.(*eventbus.NodeHealthData); ok && data.XrayError != "" {
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content += kv(i18n("email.labelError"), data.XrayError)
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}
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body = wrap(i18n("tgbot.messages.eventNodeDown", "Name=="+e.Source), content)
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case eventbus.EventNodeUp:
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subject = host + " " + i18n("tgbot.messages.eventNodeUp", "Name=="+e.Source)
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content := kv(i18n("email.labelStatus"), `<span style="color:green">`+i18n("email.statusUp")+`</span>`)
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content += kv(i18n("email.labelNode"), e.Source)
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if data, ok := e.Data.(*eventbus.NodeHealthData); ok && data.LatencyMs > 0 {
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content += kv(i18n("email.labelDelay"), fmt.Sprintf("%dms", data.LatencyMs))
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}
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body = wrap(i18n("tgbot.messages.eventNodeUp", "Name=="+e.Source), content)
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case eventbus.EventCPUHigh:
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if data, ok := e.Data.(*eventbus.SystemMetricData); ok {
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smtpCpu, err := s.settingService.GetSmtpCpu()
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if err != nil || smtpCpu <= 0 || data.Percent <= float64(smtpCpu) {
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return
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}
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subject = host + " " + i18n("tgbot.messages.cpuThreshold",
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"Percent=="+strconv.FormatFloat(data.Percent, 'f', 2, 64),
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"Threshold=="+fmt.Sprintf("%d", smtpCpu))
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content := kv(i18n("email.labelStatus"), `<span style="color:orange">`+i18n("email.statusHigh")+`</span>`)
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body = wrap(subject, content)
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}
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case eventbus.EventLoginAttempt:
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if data, ok := e.Data.(*eventbus.LoginEventData); ok {
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if data.Status == "success" {
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subject = host + " " + i18n("tgbot.messages.loginSuccess")
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content := kv(i18n("email.labelStatus"), `<span style="color:green">`+i18n("email.statusSuccess")+`</span>`)
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content += kv(i18n("email.labelUsername"), data.Username)
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content += kv(i18n("email.labelIP"), data.IP)
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body = wrap(i18n("tgbot.messages.loginSuccess"), content)
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} else {
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subject = host + " " + i18n("tgbot.messages.loginFailed")
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content := kv(i18n("email.labelStatus"), `<span style="color:red">`+i18n("email.statusFailed")+`</span>`)
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if data.Reason != "" {
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content += kv(i18n("email.labelReason"), data.Reason)
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}
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content += kv(i18n("email.labelUsername"), data.Username)
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content += kv(i18n("email.labelIP"), data.IP)
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body = wrap(i18n("tgbot.messages.loginFailed"), content)
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}
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} else {
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subject = host + " " + i18n("tgbot.messages.loginFailed")
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content := kv(i18n("email.labelStatus"), `<span style="color:red">`+i18n("email.statusFailed")+`</span>`)
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content += kv(i18n("email.labelSource"), e.Source)
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body = wrap(i18n("tgbot.messages.loginFailed"), content)
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}
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}
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return
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}
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func hostname() (string, error) {
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return os.Hostname()
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}
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