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e7699708ef
in smtpserver, we store dmarc evaluations (under the right conditions). in dmarcdb, we periodically (hourly) send dmarc reports if there are evaluations. for failed deliveries, we deliver the dsn quietly to a submailbox of the postmaster mailbox. this is on by default, but can be disabled in mox.conf.
103 lines
2.8 KiB
Go
103 lines
2.8 KiB
Go
package main
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import (
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"fmt"
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"os"
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"time"
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"github.com/mjl-/mox/dmarcdb"
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"github.com/mjl-/mox/dns"
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"github.com/mjl-/mox/http"
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"github.com/mjl-/mox/imapserver"
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"github.com/mjl-/mox/mlog"
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"github.com/mjl-/mox/mox-"
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"github.com/mjl-/mox/mtastsdb"
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"github.com/mjl-/mox/queue"
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"github.com/mjl-/mox/smtpserver"
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"github.com/mjl-/mox/store"
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"github.com/mjl-/mox/tlsrptdb"
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)
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func shutdown(log *mlog.Log) {
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// We indicate we are shutting down. Causes new connections and new SMTP commands
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// to be rejected. Should stop active connections pretty quickly.
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mox.ShutdownCancel()
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// Now we are going to wait for all connections to be gone, up to a timeout.
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done := mox.Connections.Done()
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second := time.Tick(time.Second)
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select {
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case <-done:
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log.Print("connections shutdown, waiting until 1 second passed")
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<-second
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case <-time.Tick(3 * time.Second):
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// We now cancel all pending operations, and set an immediate deadline on sockets.
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// Should get us a clean shutdown relatively quickly.
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mox.ContextCancel()
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mox.Connections.Shutdown()
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second := time.Tick(time.Second)
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select {
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case <-done:
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log.Print("no more connections, shutdown is clean, waiting until 1 second passed")
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<-second // Still wait for second, giving processes like imports a chance to clean up.
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case <-second:
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log.Print("shutting down with pending sockets")
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}
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}
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err := os.Remove(mox.DataDirPath("ctl"))
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log.Check(err, "removing ctl unix domain socket during shutdown")
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}
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// start initializes all packages, starts all listeners and the switchboard
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// goroutine, then returns.
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func start(mtastsdbRefresher, sendDMARCReports, skipForkExec bool) error {
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smtpserver.Listen()
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imapserver.Listen()
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http.Listen()
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if !skipForkExec {
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// If we were just launched as root, fork and exec as unprivileged user, handing
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// over the bound sockets to the new process. We'll get to this same code path
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// again, skipping this if block, continuing below with the actual serving.
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if os.Getuid() == 0 {
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mox.ForkExecUnprivileged()
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panic("cannot happen")
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} else {
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mox.CleanupPassedFiles()
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}
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}
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if err := mtastsdb.Init(mtastsdbRefresher); err != nil {
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return fmt.Errorf("mtasts init: %s", err)
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}
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if err := tlsrptdb.Init(); err != nil {
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return fmt.Errorf("tlsrpt init: %s", err)
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}
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done := make(chan struct{}, 1)
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if err := queue.Start(dns.StrictResolver{Pkg: "queue"}, done); err != nil {
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return fmt.Errorf("queue start: %s", err)
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}
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// dmarcdb starts after queue because it may start sending reports through the queue.
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if err := dmarcdb.Init(); err != nil {
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return fmt.Errorf("dmarc init: %s", err)
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}
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if sendDMARCReports {
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dmarcdb.Start(dns.StrictResolver{Pkg: "dmarcdb"})
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}
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store.StartAuthCache()
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smtpserver.Serve()
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imapserver.Serve()
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http.Serve()
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go func() {
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store.Switchboard()
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<-make(chan struct{})
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}()
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return nil
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}
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