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package rootvault
import (
"errors"
"fmt"
"net"
"path/filepath"
"strconv"
"strings"
)
const (
DirName = "openbao"
StorageDirName = "root"
ConfigFileName = "root.hcl"
TLSDirName = "tls"
ServerCertName = "server.crt"
ServerKeyName = "server.key"
ClientCertName = "client.crt"
ClientKeyName = "client.key"
CAName = "ca.crt"
ClientsCAName = "clients-ca.crt"
ClientsCAKeyName = "clients-ca.key"
ClientCABundleName = "client-cas.crt"
ClientsDirName = "clients"
UnsealKeysName = "unseal-keys.json"
LoopbackHost = "127.0.0.1"
Port = 8200
)
var ErrConfigValue = errors.New("rootvault: a config value carries a quote, a backslash or a line break and would end its HCL string")
var ErrStateDirEmpty = errors.New(
"rootvault: StateDir is required. The root vault holds the cross-deployment credentials, and " +
"every path in its config is derived from the state dir, so an empty one renders a config " +
"whose storage path is the process's current directory: a vault started from one working " +
"directory and restarted from another comes up on an empty store")
var ErrStateDirNotAbsolute = errors.New(
"rootvault: StateDir must be absolute before a root-vault config can be rendered from it. A " +
"relative one resolves against whichever directory the entrypoint happened to start in, so " +
"the storage path in the rendered file names a directory nobody meant and the state volume " +
"the credentials are meant to survive on is bypassed")
// ponytail: file backend, deprecated with an expiry at v2.7.0; the state-volume store moves to embedded-postgres when the root vault is migrated
func Address() string {
return net.JoinHostPort(LoopbackHost, strconv.Itoa(Port))
}
func Dir(stateDir string) string {
return filepath.Join(stateDir, DirName)
}
func StorageDir(stateDir string) string {
return filepath.Join(Dir(stateDir), StorageDirName)
}
func ConfigPath(stateDir string) string {
return filepath.Join(Dir(stateDir), ConfigFileName)
}
func TLSDir(stateDir string) string {
return filepath.Join(Dir(stateDir), TLSDirName)
}
func TLSCAPath(stateDir string) string {
return filepath.Join(TLSDir(stateDir), CAName)
}
func ServerCertPath(stateDir string) string {
return filepath.Join(TLSDir(stateDir), ServerCertName)
}
func ServerKeyPath(stateDir string) string {
return filepath.Join(TLSDir(stateDir), ServerKeyName)
}
func ClientCertPath(stateDir string) string {
return filepath.Join(TLSDir(stateDir), ClientCertName)
}
func ClientKeyPath(stateDir string) string {
return filepath.Join(TLSDir(stateDir), ClientKeyName)
}
func ClientsCAPath(stateDir string) string {
return filepath.Join(TLSDir(stateDir), ClientsCAName)
}
func ClientsCAKeyPath(stateDir string) string {
return filepath.Join(TLSDir(stateDir), ClientsCAKeyName)
}
func ClientCABundlePath(stateDir string) string {
return filepath.Join(TLSDir(stateDir), ClientCABundleName)
}
func AppClientCertPath(stateDir, name string) string {
return filepath.Join(Dir(stateDir), ClientsDirName, name, ClientCertName)
}
func AppClientKeyPath(stateDir, name string) string {
return filepath.Join(Dir(stateDir), ClientsDirName, name, ClientKeyName)
}
func UnsealKeysPath(stateDir string) string {
return filepath.Join(Dir(stateDir), UnsealKeysName)
}
type ServerOptions struct {
UnauthedGenerateRoot bool
ClientCAFile string
CertFile string
KeyFile string
ClientCertOptional bool
PostgresDSN string
PluginDirectory string
}
func ServerConfig(stateDir, addr string) (string, error) {
return ServerConfigWith(stateDir, addr, ServerOptions{})
}
func ServerConfigWith(stateDir, addr string, o ServerOptions) (string, error) {
if stateDir == "" {
return "", ErrStateDirEmpty
}
if !filepath.IsAbs(stateDir) {
return "", fmt.Errorf("%w (got %q)", ErrStateDirNotAbsolute, stateDir)
}
if addr == "" {
addr = Address()
}
cert, key := ServerCertPath(stateDir), ServerKeyPath(stateDir)
if o.CertFile != "" || o.KeyFile != "" {
cert, key = o.CertFile, o.KeyFile
}
clientCA := TLSCAPath(stateDir)
if o.ClientCAFile != "" {
clientCA = o.ClientCAFile
}
for _, v := range []string{addr, cert, key, clientCA, o.PostgresDSN, o.PluginDirectory} {
if strings.ContainsAny(v, "\"\\\n\r") {
return "", fmt.Errorf("%w (%q)", ErrConfigValue, v)
}
}
var b strings.Builder
fmt.Fprintf(&b, "ui = false\ndisable_clustering = true\napi_addr = \"https://%s\"\n", addr)
if o.PluginDirectory != "" {
fmt.Fprintf(&b, "plugin_directory = \"%s\"\n", o.PluginDirectory)
}
b.WriteString("listener \"tcp\" {\n")
fmt.Fprintf(&b, " address = \"%s\"\n", addr)
b.WriteString(" tls_disable = false\n")
fmt.Fprintf(&b, " tls_cert_file = \"%s\"\n", cert)
fmt.Fprintf(&b, " tls_key_file = \"%s\"\n", key)
if !o.ClientCertOptional {
fmt.Fprintf(&b, " tls_client_ca_file = \"%s\"\n", clientCA)
b.WriteString(" tls_require_and_verify_client_cert = true\n")
}
if o.UnauthedGenerateRoot {
b.WriteString(" disable_unauthed_generate_root_endpoints = false\n")
}
b.WriteString("}\n")
if o.PostgresDSN != "" {
fmt.Fprintf(&b, "storage \"postgresql\" {\n connection_url = \"%s\"\n}\n", o.PostgresDSN)
} else {
fmt.Fprintf(&b, "storage \"file\" {\n path = \"%s\"\n}\n", StorageDir(stateDir))
}
return b.String(), nil
}
