authelia/internal/server/server.go

114 lines
4.3 KiB
Go

package server
import (
"crypto/tls"
"crypto/x509"
"fmt"
"net"
"os"
"github.com/sirupsen/logrus"
"github.com/valyala/fasthttp"
"github.com/authelia/authelia/v4/internal/configuration/schema"
"github.com/authelia/authelia/v4/internal/logging"
"github.com/authelia/authelia/v4/internal/middlewares"
)
// CreateDefaultServer Create Authelia's internal web server with the given configuration and providers.
func CreateDefaultServer(config *schema.Configuration, providers middlewares.Providers) (server *fasthttp.Server, listener net.Listener, paths []string, isTLS bool, err error) {
if err = providers.Templates.LoadTemplatedAssets(assets); err != nil {
return nil, nil, nil, false, fmt.Errorf("failed to load templated assets: %w", err)
}
server = &fasthttp.Server{
ErrorHandler: handleError("server"),
Handler: handleRouter(config, providers),
NoDefaultServerHeader: true,
ReadBufferSize: config.Server.Buffers.Read,
WriteBufferSize: config.Server.Buffers.Write,
ReadTimeout: config.Server.Timeouts.Read,
WriteTimeout: config.Server.Timeouts.Write,
IdleTimeout: config.Server.Timeouts.Idle,
Logger: logging.LoggerPrintf(logrus.DebugLevel),
}
var (
connectionScheme = schemeHTTP
)
if listener, err = config.Server.Address.Listener(); err != nil {
return nil, nil, nil, false, fmt.Errorf("error occurred while attempting to initialize main server listener for address '%s': %w", config.Server.Address.String(), err)
}
if config.Server.TLS.Certificate != "" && config.Server.TLS.Key != "" {
isTLS, connectionScheme = true, schemeHTTPS
if err = server.AppendCert(config.Server.TLS.Certificate, config.Server.TLS.Key); err != nil {
return nil, nil, nil, false, fmt.Errorf("unable to load tls server certificate '%s' or private key '%s': %w", config.Server.TLS.Certificate, config.Server.TLS.Key, err)
}
if len(config.Server.TLS.ClientCertificates) > 0 {
caCertPool := x509.NewCertPool()
var cert []byte
for _, path := range config.Server.TLS.ClientCertificates {
if cert, err = os.ReadFile(path); err != nil {
return nil, nil, nil, false, fmt.Errorf("unable to load tls client certificate '%s': %w", path, err)
}
caCertPool.AppendCertsFromPEM(cert)
}
// ClientCAs should never be nil, otherwise the system cert pool is used for client authentication
// but we don't want everybody on the Internet to be able to authenticate.
server.TLSConfig.ClientCAs = caCertPool
server.TLSConfig.ClientAuth = tls.RequireAndVerifyClientCert
}
listener = tls.NewListener(listener, server.TLSConfig.Clone())
}
if err = writeHealthCheckEnv(config.Server.DisableHealthcheck, connectionScheme, config.Server.Address.Hostname(),
config.Server.Address.RouterPath(), config.Server.Address.Port()); err != nil {
return nil, nil, nil, false, fmt.Errorf("unable to configure healthcheck: %w", err)
}
paths = []string{"/"}
switch config.Server.Address.RouterPath() {
case "/", "":
break
default:
paths = append(paths, config.Server.Address.RouterPath())
}
return server, listener, paths, isTLS, nil
}
// CreateMetricsServer creates a metrics server.
func CreateMetricsServer(config *schema.Configuration, providers middlewares.Providers) (server *fasthttp.Server, listener net.Listener, paths []string, tls bool, err error) {
if providers.Metrics == nil {
return
}
server = &fasthttp.Server{
ErrorHandler: handleError("telemetry.metrics"),
NoDefaultServerHeader: true,
Handler: handleMetrics(config.Telemetry.Metrics.Address.RouterPath()),
ReadBufferSize: config.Telemetry.Metrics.Buffers.Read,
WriteBufferSize: config.Telemetry.Metrics.Buffers.Write,
ReadTimeout: config.Telemetry.Metrics.Timeouts.Read,
WriteTimeout: config.Telemetry.Metrics.Timeouts.Write,
IdleTimeout: config.Telemetry.Metrics.Timeouts.Idle,
Logger: logging.LoggerPrintf(logrus.DebugLevel),
}
if listener, err = config.Telemetry.Metrics.Address.Listener(); err != nil {
return nil, nil, nil, false, fmt.Errorf("error occurred while attempting to initialize metrics telemetry server listener for address '%s': %w", config.Telemetry.Metrics.Address.String(), err)
}
return server, listener, []string{config.Telemetry.Metrics.Address.RouterPath()}, false, nil
}