package cmd import ( "bytes" "context" "crypto/tls" "errors" "fmt" "net" "strings" "time" "github.com/rs/zerolog" "github.com/rs/zerolog/log" "github.com/urfave/cli/v2" "codeberg.org/codeberg/pages/server" "codeberg.org/codeberg/pages/server/cache" "codeberg.org/codeberg/pages/server/certificates" "codeberg.org/codeberg/pages/server/database" ) // AllowedCorsDomains lists the domains for which Cross-Origin Resource Sharing is allowed. // TODO: make it a flag var AllowedCorsDomains = [][]byte{ []byte("fonts.codeberg.org"), []byte("design.codeberg.org"), } // BlacklistedPaths specifies forbidden path prefixes for all Codeberg Pages. // TODO: Make it a flag too var BlacklistedPaths = [][]byte{ []byte("/.well-known/acme-challenge/"), } // Serve sets up and starts the web server. func Serve(ctx *cli.Context) error { verbose := ctx.Bool("verbose") if !verbose { zerolog.SetGlobalLevel(zerolog.InfoLevel) } giteaRoot := strings.TrimSuffix(ctx.String("gitea-root"), "/") giteaAPIToken := ctx.String("gitea-api-token") rawDomain := ctx.String("raw-domain") mainDomainSuffix := []byte(ctx.String("pages-domain")) rawInfoPage := ctx.String("raw-info-page") listeningAddress := fmt.Sprintf("%s:%s", ctx.String("host"), ctx.String("port")) enableHTTPServer := ctx.Bool("enable-http-server") acmeAPI := ctx.String("acme-api-endpoint") acmeMail := ctx.String("acme-email") acmeUseRateLimits := ctx.Bool("acme-use-rate-limits") acmeAcceptTerms := ctx.Bool("acme-accept-terms") acmeEabKID := ctx.String("acme-eab-kid") acmeEabHmac := ctx.String("acme-eab-hmac") dnsProvider := ctx.String("dns-provider") if (!acmeAcceptTerms || dnsProvider == "") && acmeAPI != "https://acme.mock.directory" { return errors.New("you must set $ACME_ACCEPT_TERMS and $DNS_PROVIDER, unless $ACME_API is set to https://acme.mock.directory") } allowedCorsDomains := AllowedCorsDomains if len(rawDomain) != 0 { allowedCorsDomains = append(allowedCorsDomains, []byte(rawDomain)) } // Make sure MainDomain has a trailing dot, and GiteaRoot has no trailing slash if !bytes.HasPrefix(mainDomainSuffix, []byte{'.'}) { mainDomainSuffix = append([]byte{'.'}, mainDomainSuffix...) } keyCache := cache.NewKeyValueCache() challengeCache := cache.NewKeyValueCache() // canonicalDomainCache stores canonical domains canonicalDomainCache := cache.NewKeyValueCache() // dnsLookupCache stores DNS lookups for custom domains dnsLookupCache := cache.NewKeyValueCache() // branchTimestampCache stores branch timestamps for faster cache checking branchTimestampCache := cache.NewKeyValueCache() // fileResponseCache stores responses from the Gitea server // TODO: make this an MRU cache with a size limit fileResponseCache := cache.NewKeyValueCache() // Create handler based on settings handler := server.Handler(mainDomainSuffix, []byte(rawDomain), giteaRoot, rawInfoPage, giteaAPIToken, BlacklistedPaths, allowedCorsDomains, dnsLookupCache, canonicalDomainCache, branchTimestampCache, fileResponseCache) fastServer := server.SetupServer(handler) httpServer := server.SetupHTTPACMEChallengeServer(challengeCache) // Setup listener and TLS log.Info().Msgf("Listening on https://%s", listeningAddress) listener, err := net.Listen("tcp", listeningAddress) if err != nil { return fmt.Errorf("couldn't create listener: %s", err) } // TODO: make "key-database.pogreb" set via flag certDB, err := database.New("key-database.pogreb") if err != nil { return fmt.Errorf("could not create database: %v", err) } defer certDB.Close() //nolint:errcheck // database has no close ... sync behave like it listener = tls.NewListener(listener, certificates.TLSConfig(mainDomainSuffix, giteaRoot, giteaAPIToken, dnsProvider, acmeUseRateLimits, keyCache, challengeCache, dnsLookupCache, canonicalDomainCache, certDB)) acmeConfig, err := certificates.SetupAcmeConfig(acmeAPI, acmeMail, acmeEabHmac, acmeEabKID, acmeAcceptTerms) if err != nil { return err } if err := certificates.SetupCertificates(mainDomainSuffix, dnsProvider, acmeConfig, acmeUseRateLimits, enableHTTPServer, challengeCache, certDB); err != nil { return err } interval := 12 * time.Hour certMaintainCtx, cancelCertMaintain := context.WithCancel(context.Background()) defer cancelCertMaintain() go certificates.MaintainCertDB(certMaintainCtx, interval, mainDomainSuffix, dnsProvider, acmeUseRateLimits, certDB) if enableHTTPServer { go func() { err := httpServer.ListenAndServe("[::]:80") if err != nil { log.Panic().Err(err).Msg("Couldn't start HTTP fastServer") } }() } // Start the web fastServer err = fastServer.Serve(listener) if err != nil { log.Panic().Err(err).Msg("Couldn't start fastServer") } return nil }