Move code to pkg

middlewares/auth/basic_auth.go

@@ -1,102 +0,0 @@
-package auth
-
-import (
-	"context"
-	"fmt"
-	"net/http"
-	"net/url"
-	"strings"
-
-	goauth "github.com/abbot/go-http-auth"
-	"github.com/containous/traefik/config"
-	"github.com/containous/traefik/middlewares"
-	"github.com/containous/traefik/middlewares/accesslog"
-	"github.com/containous/traefik/tracing"
-	"github.com/opentracing/opentracing-go/ext"
-)
-
-const (
-	basicTypeName = "BasicAuth"
-)
-
-type basicAuth struct {
-	next         http.Handler
-	auth         *goauth.BasicAuth
-	users        map[string]string
-	headerField  string
-	removeHeader bool
-	name         string
-}
-
-// NewBasic creates a basicAuth middleware.
-func NewBasic(ctx context.Context, next http.Handler, authConfig config.BasicAuth, name string) (http.Handler, error) {
-	middlewares.GetLogger(ctx, name, basicTypeName).Debug("Creating middleware")
-	users, err := getUsers(authConfig.UsersFile, authConfig.Users, basicUserParser)
-	if err != nil {
-		return nil, err
-	}
-
-	ba := &basicAuth{
-		next:         next,
-		users:        users,
-		headerField:  authConfig.HeaderField,
-		removeHeader: authConfig.RemoveHeader,
-		name:         name,
-	}
-
-	realm := defaultRealm
-	if len(authConfig.Realm) > 0 {
-		realm = authConfig.Realm
-	}
-	ba.auth = goauth.NewBasicAuthenticator(realm, ba.secretBasic)
-
-	return ba, nil
-}
-
-func (b *basicAuth) GetTracingInformation() (string, ext.SpanKindEnum) {
-	return b.name, tracing.SpanKindNoneEnum
-}
-
-func (b *basicAuth) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
-	logger := middlewares.GetLogger(req.Context(), b.name, basicTypeName)
-
-	if username := b.auth.CheckAuth(req); username == "" {
-		logger.Debug("Authentication failed")
-		tracing.SetErrorWithEvent(req, "Authentication failed")
-		b.auth.RequireAuth(rw, req)
-	} else {
-		logger.Debug("Authentication succeeded")
-		req.URL.User = url.User(username)
-
-		logData := accesslog.GetLogData(req)
-		if logData != nil {
-			logData.Core[accesslog.ClientUsername] = username
-		}
-
-		if b.headerField != "" {
-			req.Header[b.headerField] = []string{username}
-		}
-
-		if b.removeHeader {
-			logger.Debug("Removing authorization header")
-			req.Header.Del(authorizationHeader)
-		}
-		b.next.ServeHTTP(rw, req)
-	}
-}
-
-func (b *basicAuth) secretBasic(user, realm string) string {
-	if secret, ok := b.users[user]; ok {
-		return secret
-	}
-
-	return ""
-}
-
-func basicUserParser(user string) (string, string, error) {
-	split := strings.Split(user, ":")
-	if len(split) != 2 {
-		return "", "", fmt.Errorf("error parsing BasicUser: %v", user)
-	}
-	return split[0], split[1], nil
-}