AdGuardHome/internal/next/configmgr/config.go

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package configmgr
import (
"fmt"
"net/netip"
"github.com/AdguardTeam/golibs/errors"
"github.com/AdguardTeam/golibs/timeutil"
)
// Configuration Structures
// config is the top-level on-disk configuration structure.
type config struct {
DNS *dnsConfig `yaml:"dns"`
HTTP *httpConfig `yaml:"http"`
Log *logConfig `yaml:"log"`
// TODO(a.garipov): Use.
SchemaVersion int `yaml:"schema_version"`
}
const errNoConf errors.Error = "configuration not found"
// validate returns an error if the configuration structure is invalid.
func (c *config) validate() (err error) {
if c == nil {
return errNoConf
}
// TODO(a.garipov): Add more validations.
// Keep this in the same order as the fields in the config.
validators := []struct {
validate func() (err error)
name string
}{{
validate: c.DNS.validate,
name: "dns",
}, {
validate: c.HTTP.validate,
name: "http",
}, {
validate: c.Log.validate,
name: "log",
}}
for _, v := range validators {
err = v.validate()
if err != nil {
return fmt.Errorf("%s: %w", v.name, err)
}
}
return nil
}
// dnsConfig is the on-disk DNS configuration.
type dnsConfig struct {
Addresses []netip.AddrPort `yaml:"addresses"`
BootstrapDNS []string `yaml:"bootstrap_dns"`
UpstreamDNS []string `yaml:"upstream_dns"`
DNS64Prefixes []netip.Prefix `yaml:"dns64_prefixes"`
UpstreamTimeout timeutil.Duration `yaml:"upstream_timeout"`
BootstrapPreferIPv6 bool `yaml:"bootstrap_prefer_ipv6"`
UseDNS64 bool `yaml:"use_dns64"`
}
// validate returns an error if the DNS configuration structure is invalid.
//
// TODO(a.garipov): Add more validations.
func (c *dnsConfig) validate() (err error) {
// TODO(a.garipov): Add more validations.
switch {
case c == nil:
return errNoConf
case c.UpstreamTimeout.Duration <= 0:
return newMustBePositiveError("upstream_timeout", c.UpstreamTimeout)
default:
return nil
}
}
// httpConfig is the on-disk web API configuration.
type httpConfig struct {
Pprof *httpPprofConfig `yaml:"pprof"`
// TODO(a.garipov): Document the configuration change.
Addresses []netip.AddrPort `yaml:"addresses"`
SecureAddresses []netip.AddrPort `yaml:"secure_addresses"`
Timeout timeutil.Duration `yaml:"timeout"`
ForceHTTPS bool `yaml:"force_https"`
}
// validate returns an error if the HTTP configuration structure is invalid.
//
// TODO(a.garipov): Add more validations.
func (c *httpConfig) validate() (err error) {
switch {
case c == nil:
return errNoConf
case c.Timeout.Duration <= 0:
return newMustBePositiveError("timeout", c.Timeout)
default:
return c.Pprof.validate()
}
}
// httpPprofConfig is the on-disk pprof configuration.
type httpPprofConfig struct {
Port uint16 `yaml:"port"`
Enabled bool `yaml:"enabled"`
}
// validate returns an error if the pprof configuration structure is invalid.
func (c *httpPprofConfig) validate() (err error) {
if c == nil {
return errNoConf
}
return nil
}
// logConfig is the on-disk web API configuration.
type logConfig struct {
// TODO(a.garipov): Use.
Verbose bool `yaml:"verbose"`
}
// validate returns an error if the HTTP configuration structure is invalid.
//
// TODO(a.garipov): Add more validations.
func (c *logConfig) validate() (err error) {
if c == nil {
return errNoConf
}
return nil
}