GoToSocial/internal/config/validate.go
Daenney d2f6de0185
[feature] Allow loading TLS certs from disk (#1586)
Currently, GtS only supports using the built-in LE client directly for
TLS. However, admins may still want to use GtS directly (so without a
reverse proxy) but with certificates provided through some other
mechanism. They may have some centralised way of provisioning these
things themselves, or simply prefer to use LE but with a different
challenge like DNS-01 which is not supported by autocert.

This adds support for loading a public/private keypair from disk instead
of using LE and reconfigures the server to use a TLS listener if we
succeed in doing so.

Additionally, being able to load TLS keypair from disk opens up the path
to using a custom CA for testing purposes avoinding the need for a
constellation of containers and something like Pebble or Step CA to
provide LE APIs.
2023-03-04 17:24:02 +00:00

93 lines
2.8 KiB
Go

/*
GoToSocial
Copyright (C) 2021-2023 GoToSocial Authors admin@gotosocial.org
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package config
import (
"errors"
"fmt"
"strings"
"github.com/miekg/dns"
"github.com/superseriousbusiness/gotosocial/internal/log"
)
// Validate validates global config settings which don't have defaults, to make sure they are set sensibly.
func Validate() error {
errs := []error{}
// host
host := GetHost()
if host == "" {
errs = append(errs, fmt.Errorf("%s must be set", HostFlag()))
}
// accountDomain; only check if host was set, otherwise there's no point
if host != "" {
switch ad := GetAccountDomain(); ad {
case "":
SetAccountDomain(GetHost())
default:
if !dns.IsSubDomain(ad, host) {
errs = append(errs, fmt.Errorf("%s was %s and %s was %s, but %s is not a valid subdomain of %s", HostFlag(), host, AccountDomainFlag(), ad, host, ad))
}
}
}
// protocol
switch proto := GetProtocol(); proto {
case "https":
// no problem
break
case "http":
log.Warnf(nil, "%s was set to 'http'; this should *only* be used for debugging and tests!", ProtocolFlag())
case "":
errs = append(errs, fmt.Errorf("%s must be set", ProtocolFlag()))
default:
errs = append(errs, fmt.Errorf("%s must be set to either http or https, provided value was %s", ProtocolFlag(), proto))
}
webAssetsBaseDir := GetWebAssetBaseDir()
if webAssetsBaseDir == "" {
errs = append(errs, fmt.Errorf("%s must be set", WebAssetBaseDirFlag()))
}
tlsChain := GetTLSCertificateChain()
tlsKey := GetTLSCertificateKey()
tlsChainFlag := TLSCertificateChainFlag()
tlsKeyFlag := TLSCertificateKeyFlag()
if GetLetsEncryptEnabled() && (tlsChain != "" || tlsKey != "") {
errs = append(errs, fmt.Errorf("%s cannot be enabled when %s and/or %s are also set", LetsEncryptEnabledFlag(), tlsChainFlag, tlsKeyFlag))
}
if (tlsChain != "" && tlsKey == "") || (tlsChain == "" && tlsKey != "") {
errs = append(errs, fmt.Errorf("%s and %s need to both be set or unset", tlsChainFlag, tlsKeyFlag))
}
if len(errs) > 0 {
errStrings := []string{}
for _, err := range errs {
errStrings = append(errStrings, err.Error())
}
return errors.New(strings.Join(errStrings, "; "))
}
return nil
}