mirror of
https://github.com/wiggin77/mailrelay.git
synced 2024-11-24 16:13:08 +01:00
100 lines
2.7 KiB
Go
100 lines
2.7 KiB
Go
package main
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import (
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"fmt"
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guerrilla "github.com/flashmob/go-guerrilla"
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"github.com/flashmob/go-guerrilla/backends"
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"github.com/flashmob/go-guerrilla/log"
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"github.com/flashmob/go-guerrilla/mail"
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)
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const (
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saveWorkersSize = 3
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)
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// Start starts the server.
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func Start(appConfig *mailRelayConfig, verbose bool) (err error) {
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listen := fmt.Sprintf("%s:%d", appConfig.LocalListenIP, appConfig.LocalListenPort)
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logLevel := "info"
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if verbose {
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logLevel = "debug"
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}
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cfg := &guerrilla.AppConfig{
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LogFile: log.OutputStdout.String(),
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AllowedHosts: appConfig.AllowedHosts,
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LogLevel: logLevel,
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}
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sc := guerrilla.ServerConfig{
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ListenInterface: listen,
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IsEnabled: true,
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MaxSize: appConfig.MaxEmailSize,
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Timeout: appConfig.TimeoutSecs,
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}
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cfg.Servers = append(cfg.Servers, sc)
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bcfg := backends.BackendConfig{
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"save_workers_size": saveWorkersSize,
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"save_process": "HeadersParser|Header|Hasher|Debugger|MailRelay",
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"log_received_mails": true,
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"primary_mail_host": "homeoffice.com",
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"smtp_username": appConfig.SMTPUsername,
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"smtp_password": appConfig.SMTPPassword,
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"smtp_server": appConfig.SMTPServer,
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"smtp_port": appConfig.SMTPPort,
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"smtp_starttls": appConfig.SMTPStartTLS,
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"smtp_login_auth_type": appConfig.SMTPLoginAuthType,
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"smtp_skip_cert_verify": appConfig.SkipCertVerify,
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}
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cfg.BackendConfig = bcfg
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d := guerrilla.Daemon{Config: cfg}
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d.AddProcessor("MailRelay", mailRelayProcessor)
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return d.Start()
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}
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type relayConfig struct {
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Server string `json:"smtp_server"`
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Port int `json:"smtp_port"`
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STARTTLS bool `json:"smtp_starttls"`
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LoginAuthType bool `json:"smtp_login_auth_type"`
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Username string `json:"smtp_username"`
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Password string `json:"smtp_password"`
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SkipVerify bool `json:"smtp_skip_cert_verify"`
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}
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// mailRelayProcessor decorator relays emails to another SMTP server.
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var mailRelayProcessor = func() backends.Decorator {
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config := &relayConfig{}
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initFunc := backends.InitializeWith(func(backendConfig backends.BackendConfig) error {
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configType := backends.BaseConfig(&relayConfig{})
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bcfg, err := backends.Svc.ExtractConfig(backendConfig, configType)
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if err != nil {
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return err
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}
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config = bcfg.(*relayConfig)
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return nil
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})
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backends.Svc.AddInitializer(initFunc)
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return func(p backends.Processor) backends.Processor {
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return backends.ProcessWith(
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func(e *mail.Envelope, task backends.SelectTask) (backends.Result, error) {
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if task == backends.TaskSaveMail {
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err := sendMail(e, config)
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if err != nil {
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return backends.NewResult(err.Error()), err
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}
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return p.Process(e, task)
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}
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return p.Process(e, task)
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},
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)
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}
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}
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