photoprism/internal/server/autotls.go

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package server
import (
"fmt"
"strings"
"golang.org/x/crypto/acme/autocert"
"github.com/photoprism/photoprism/internal/config"
)
// AutoTLS enables automatic HTTPS via Let's Encrypt.
func AutoTLS(conf *config.Config) (*autocert.Manager, error) {
var siteDomain, tlsEmail, certDir string
// Enable automatic HTTPS via Let's Encrypt?
if !conf.SiteHttps() {
return nil, fmt.Errorf("default site url does not use https")
} else if siteDomain = conf.SiteDomain(); !strings.Contains(siteDomain, ".") {
return nil, fmt.Errorf("no fully qualified site domain")
} else if tlsEmail = conf.TLSEmail(); tlsEmail == "" {
return nil, fmt.Errorf("automatic tls disabled")
} else if certDir = conf.CertificatesPath(); certDir == "" {
return nil, fmt.Errorf("certificates path not found")
}
// Create Let's Encrypt cert manager.
m := &autocert.Manager{
Email: tlsEmail,
Prompt: autocert.AcceptTOS,
HostPolicy: autocert.HostWhitelist(siteDomain),
Cache: autocert.DirCache(certDir),
}
return m, nil
}